пятница, 31 августа 2012 г.

Games

Games


Ondesoft ScreenCapture 1.07.36 - Screen capture utility.. (Shareware)

Posted: 31 Aug 2012 02:52 AM PDT



Ondesoft ScreenCapture is currently the most powerful screen grabbing utility on Mac OS, by which you can easily capture any part on your Mac desktop such as rectangular or ellipse region, freehand region, full screen, active window or all windows from any webpage or application and so on. With this Mac screenshot capture, you can snag frame rectangular or ellipse region of your desktop. The knobs on the sides and corners can be used to resize the frame according to your need. The transparent frame makes you see the content and icon through it. In addition, screen magnifier with hotkey instructions that can be hidden or displayed can help capture the exact region as you want.

Features:

  • All the main functions buttons can be referred to on the intuitive interface.
  • Grabbing your entire desktop, rectangular or ellipse region, certain window or all windows can be done with just one click.
  • Arbitrary Snap Function allows you to create shapes that tailor suits your desired image.
  • With just one click, you can capture any part on desktop.
  • Timer Screen are delayed as long as you like to set up what you want to capture on Mac-like a menu-then snag it when you're ready.
  • Screen magnifier can magnify edges of frame to help capture area on your screen accurately.
  • Set Hotkeys and make the fastest image capturing program even quicker.
  • Add some effects with Grab Tool, Text Tools, the Brush Tool, Custom Shape Tools, and an easy to use Arrow Tool.
  • Save your captured image in a wide variety of image formats, including PNG, BMP, TIFF, PPM, XBM, XPM, ICO, JPEG, JPG, and TIF.
  • Options in the Preferences Panel allow even more customization of the Timed Screen Function, the Magnification Window, Launch Options, and many more aspects of the Onde Screen Capture.
  • Save your grabbed images directly to the desktop or copy them straight to the clipboard.


Version 1.07.36:
  • Every screenshot is automatically saved as a thumbnail.


  • Mac OS X 10.6 or later
  • 64-bit processor


Download Now

This posting includes an audio/video/photo media file: Download Now

Magican 1.1.6 - Optimize your Mac.. (Free)

Posted: 31 Aug 2012 03:05 AM PDT



Magican is an integrated system utility featuring:
  • System optimization: Magican can clearly catch the sum of junks and remove them with only "One-Click".
  • Monitor for Mac: System information, memory usage and CPU usage are displayed to help users clearly catch the information of the Mac.
  • Clean Mac: "One-Click" to scan and clear all the useless files, including duplicated files, unneeded languages packages, useless binaries, system logs, caches, Web browser caches and former app's leftover.
  • Antivirus: Magican provides you 3 scanning modes to detect over 30 kinds of viruses. You can quickly remove viruses and all infected files.
  • ToolBox: A series of Magican apps could be downloaded from ToolBox, like Magican File, Magican Rest and Magican Document.
  • App uninstaller: Users can uninstall any software by a "Remove" button. It will remove the apps and it's leftover.
  • Software management: Magican help users get freeware and discount software in Mac App Store. It still displays all the installed applications and reminds you once it updates in Mac App Store.
  • Hardware info: It helps users get familiar with their Mac. The hardware information can be exported out as documents and images.
  • Network traffic: The monthly network traffic display help users clearly catch the traffic they brought monthly.
  • Memory release: It can help you quickly purge the inactive memory into free memory.
  • Weather broadcast: It reports the next 3 day forecast in floating window.


Version 1.1.6:
  • Anti-Trojan enables detecting: Tsunami/DevilRobber/Imuler.
  • Correct memory usage display (Usable memory now include free and inactive memory).
  • Fix abnormal warning of temperature on OS X 10.6.
  • Fix problem that "Auto start at login" option takes no effect on OS X 10.8.
  • Fix bug that displaying on-download scanning notification may cause crash.
  • Improve efficiency of Full Scan.
  • Bugs fixed.


  • Mac OS X 10.6 or later
  • 64-bit processor


Download Now

This posting includes an audio/video/photo media file: Download Now

RPG Alphadia - Screenshots

Posted: 31 Aug 2012 03:29 AM PDT

-A classic Japanese role-playing game-
Employing an orthodox turn-based battle system, Alphadia evokes a feeling of nostalgia with its classic gameplay style. In addition, its refined game balance and simple to use interface make this game easy for anyone to pick up and enjoy. Furthermore, with completely redrawn graphics, Alphadia's world shines on high-resolution touch screens.

-Charming characters and a dramatic story-
It is often thought that games on a cell phone can only offer a short, limited experience, but that is not the case with Alphadia. Alphadia boasts an expansive drama that spans 30+ hours of gameplay, and which is sure to pull on a few heartstrings as Ash and his party are faced with numerous challenges and trials.

-Engage in strategic battles while exploiting the potential of energi-
By mastering the various elementals, characters become adept in using a host of energi skills. Which energi skills characters learn beyond those of their inherent elemental, however, is given to the player to decide! Having such freedom lends itself to an overall richer gameplay experience in Alphadia.

As players learn to harness elementals in battle, they quickly become able to take advantage of their situation, and the thrill of battle increases. And of course, for those who prefer, there is an auto-function built into Alphadia's battle system that allows players to cut through waves of enemies with little effort should they choose.

Nanomaterials, Vol. 2, Pages 275-285: Assembly of DNA Architectures in a Non-Aqueous Solution

Posted: 31 Aug 2012 12:00 AM PDT

In the present work, the procedures for the creation of self-assembled DNA nanostructures in aqueous and non-aqueous media are described. DNA-Surfactant complex formation renders the DNA soluble in organic solvents offering an exciting way to bridge the transition of DNA origami materials electronics applications. The DNA retains its structural features, and these unique geometries provide an interesting candidate for future electronics and nanofabrication applications with potential for new properties. The DNA architectures were first assembled under aqueous conditions, and then characterized in solution (using circular dichroism (CD) spectroscopy) and on the surface (using atomic force microscopy (AFM)). Following aqueous assembly, the DNA nanostructures were transitioned to a non-aqueous environment, where butanol was chosen for optical compatibility and thermal properties. The retention of DNA hierarchical structure and thermal stability in non-aqueous conditions were confirmed via CD spectroscopy. The formation and characterization of these higher order DNA-surfactant complexes is described in this paper.

Information, Vol. 3, Pages 391-402: Information Flow and Health Policy Literacy: The Role of the Media

Posted: 31 Aug 2012 12:00 AM PDT

People increasingly can and want to obtain and generate health information themselves. With the increasing do-it-yourself sentiment comes also the desire to be more involved in one's health care decisions. Patient driven health-care and health research models are emerging; terms such as participatory medicine and quantified-self are visible increasingly. Given the health consumer's desire to be more involved in health data generation and health care decision making processes the authors submit that it is important to be health policy literate, to understanding how health policies are developed, what themes are discussed among health policy researchers and policy makers, to understand how ones demands would be discussed within health policy discourses. The public increasingly obtains their knowledge through the internet by searching web browsers for keywords. Question is whether the "health consumer" to come has knowledge of key terms defining key health policy discourses which would enable them to perform targeted searches for health policy literature relevant to their situation. The authors found that key health policy terms are virtually absent from printed and online news media which begs the question how the "health consumer" might learn about key health policy terms needed for web based searches that would allow the "health consumer" to access health policy discourses relevant to them.

Information, Vol. 3, Pages 372-390: Virtual Globes: Serving Science and Society

Posted: 31 Aug 2012 12:00 AM PDT

Virtual Globes reached the mass market in 2005. They created multi-million dollar businesses in a very short time by providing novel ways to explore data geographically. We use the term "Virtual Globes" as the common denominator for technologies offering capabilities to annotate, edit and publish geographic information to a world-wide audience and to visualize information provided by the public and private sectors, as well as by citizens who volunteer new data. Unfortunately, but not surprising for a new trend or paradigm, overlapping terms such as "Virtual Globes", "Digital Earth", "Geospatial Web", "Geoportal" or software specific terms are used heterogeneously. We analyze the terminologies and trends in scientific publications and ask whether these developments serve science and society. While usage can be answered quantitatively, the authors reason from the literature studied that these developments serve to educate the masses and may help to democratize geographic information by extending the producer base. We believe that we can contribute to a better distinction between software centered terms and the generic concept as such. The power of the visual, coupled with the potential of spatial analysis and modeling for public and private purposes raises new issues of reliability, standards, privacy and best practice. This is increasingly addressed in scientific literature but the required body of knowledge is still in its infancy.

Biosensors, Vol. 2, Pages 305-317: Functional Conducting Polymers via Thiol-ene Chemistry

Posted: 31 Aug 2012 12:00 AM PDT

We demonstrate here that thiol-ene chemistry can be used to provide side-chain functionalized monomers based on 3,4-propylenedioxythiophene (ProDOT) containing ionic, neutral, hydrophobic, and hydrophilic side chains. All reactions gave high yields and purification could generally be accomplished through precipitation. These monomers were polymerized either chemically or electro-chemically to give soluble materials or conductive films, respectively. This strategy provides for facile tuning of the solubility, film surface chemistry, and film morphology of this class of conducting polymers.

F1 2012: Hands-on preview as we try out for Ferrari then get told to win in a rainstorm... on dry tyres

Posted: 31 Aug 2012 02:43 AM PDT

F1 2012 is fast approaching and we've got an almost-finished version of the game in our office. Not all the tracks are unlocked for us to play, but we

Membranes, Vol. 2, Pages 585-664: A Review of RedOx Cycling of Solid Oxide Fuel Cells Anode

Posted: 31 Aug 2012 12:00 AM PDT

Solid oxide fuel cells are able to convert fuels, including hydrocarbons, to electricity with an unbeatable efficiency even for small systems. One of the main limitations for long-term utilization is the reduction-oxidation cycling (RedOx cycles) of the nickel-based anodes. This paper will review the effects and parameters influencing RedOx cycles of the Ni-ceramic anode. Second, solutions for RedOx instability are reviewed in the patent and open scientific literature. The solutions are described from the point of view of the system, stack design, cell design, new materials and microstructure optimization. Finally, a brief synthesis on RedOx cycling of Ni-based anode supports for standard and optimized microstructures is depicted.

Molecules, Vol. 17, Pages 10414-10428: Synthesis, Structure and Insecticidal Activities of Some Novel Amides Containing N-Pyridylpyrazole Moeities

Posted: 31 Aug 2012 12:00 AM PDT

In our search for environmentally benign insecticides with high activity, low toxicity and low residue, a novel series of amides containing N-pyridylpyrazole moieties were designed and synthesized. The structures of the title compounds were characterized and confirmed by 1H-NMR and elemental analysis. Furthermore, the structure of compound 7l was determined by single crystal X-ray diffraction. The preliminary bioassay tests showed that some of them exhibited good insecticidal activities against Mythimna separata Walker, Plutella xylostella (Linnaeus, 1758) and Laphygma exigua Hübner.

Toxins, Vol. 4, Pages 633-642: Simultaneous Detection of Ricin and Abrin DNA by Real-Time PCR (qPCR)

Posted: 31 Aug 2012 12:00 AM PDT

Ricin and abrin are two of the most potent plant toxins known and may be easily obtained in high yield from the seeds using rather simple technology. As a result, both toxins are potent and available toxins for criminal or terrorist acts. However, as the production of highly purified ricin or abrin requires sophisticated equipment and knowledge, it may be more likely that crude extracts would be used by non-governmental perpetrators. Remaining plant-specific nucleic acids in these extracts allow the application of a real-time PCR (qPCR) assay for the detection and identification of abrin or ricin genomic material. Therefore, we have developed a duplex real-time PCR assays for simultaneous detection of ricin and abrin DNA based on the OmniMix HS bead PCR reagent mixture. Novel primers and hybridization probes were designed for detection on a SmartCycler instrument by using 5′-nuclease technology. The assay was thoroughly optimized and validated in terms of analytical sensitivity. Evaluation of the assay sensitivity by probit analysis demonstrated a 95% probability of detection at 3 genomes per reaction for ricin DNA and 1.2 genomes per reaction for abrin DNA. The suitability of the assays was exemplified by detection of ricin and abrin contaminations in a food matrix.

Twitch 2012 PAX Prime Booth Live Stream

Posted: 31 Aug 2012 12:53 AM PDT

Stuck at home? You can still check out some of the most anticipated games of PAX Prime 2012 as Twitch brings the show right to you all weekend long.

 

Get the full article at GameSpot


"Twitch 2012 PAX Prime Booth Live Stream " was posted by Staff on Fri, 31 Aug 2012 00:53:58 -0700

WWE '13 preview event featuring CM Punk!

Posted: 30 Aug 2012 10:20 PM PDT

Several lucky Aussie GameSpotters are joining us for our WWE '13 Preview event, featuring CM Punk; now you can be part of it thanks to our live stream!

 

Get the full article at GameSpot


"WWE '13 preview event featuring CM Punk!" was posted by Staff on Thu, 30 Aug 2012 22:20:55 -0700

Tekken Tag Tournament 2 - World Tekken Federation Trailer

Posted: 30 Aug 2012 10:18 PM PDT

A trailer highlighting Tekken Tag Tournament 2's re-engineered World Tekken Federation mode.

 

Read and Post Comments | Get the full article at GameSpot


"Tekken Tag Tournament 2 - World Tekken Federation Trailer" was posted by MikeTao on Thu, 30 Aug 2012 22:18:18 -0700

Super T.I.M.E. Force - Time Out with Super T.I.M.E. Force

Posted: 30 Aug 2012 09:26 PM PDT

Check out a trailer featuring the time-traveling gangsters, the Super T.I.M.E. Force.

 

Read and Post Comments | Get the full article at GameSpot


"Super T.I.M.E. Force - Time Out with Super T.I.M.E. Force" was posted by MikeTao on Thu, 30 Aug 2012 21:26:00 -0700

Viruses, Vol. 4, Pages 1410-1424: Structural Aspects of the Interaction of Dairy Phages with Their Host Bacteria

Posted: 31 Aug 2012 12:00 AM PDT

Knowledge of phage-host interactions at a fundamental level is central to the design of rational strategies for the development of phage-resistant strains that may be applied in industrial settings. Phages infecting lactic acid bacteria, in particular Lactococcus lactis and Streptococcus thermophilus, negatively impact on dairy fermentation processes with serious economic implications. In recent years a wealth of information on structural protein assembly and topology has become available relating to phages infecting Escherichia coli, Bacillus subtilis and Lactococcus lactis, which act as models for structural analyses of dairy phages. In this review, we explore the role of model tailed phages, such as T4 and SPP1, in advancing our knowledge regarding interactions between dairy phages and their hosts. Furthermore, the potential of currently investigated dairy phages to in turn serve as model systems for this particular group of phages is discussed.

IJMS, Vol. 13, Pages 10935-10958: Gamma Irradiation of in-Shell and Blanched Peanuts Protects against Mycotoxic Fungi and Retains Their Nutraceutical Components during Long-Term Storage

Posted: 31 Aug 2012 12:00 AM PDT

Peanut samples were irradiated (0.0, 5.2, 7.2 or 10.0 kGy), stored for a year (room temperature) and examined every three months. Mycotoxic fungi (MF) were detected in non-irradiated blanched peanuts. A dose of 5.2 kGy was found suitable to prevent MF growth in blanched samples. No MF was detected in in-shell peanuts, with or without irradiation. The colors of the control in-shell and blanched samples were, respectively, 44.72 and 60.21 (L *); 25.20 and 20.38 (Chroma); 53.05 and 86.46 (°Hue). The water activities (Aw) were 0.673 and 0.425. The corresponding fatty acids were 13.33% and 12.14% (C16:0), 44.94% and 44.92% (C18:1, ω9) and 37.10% and 37.63% (C18:2, ω6). The total phenolics (TP) were 4.62 and 2.52 mg GAE/g, with antioxidant activities (AA) of 16.97 and 10.36 μmol TEAC/g. Storage time negatively correlated with Aw (in-shell peanuts) or L *, linoleic acid, TP and AA (in-shell and blanched peanuts) but positively correlated with Aw (blanched peanuts), and with oleic acid (in-shell and blanched peanuts). Irradiation positively correlated with antioxidant activity (blanched peanuts). No correlation was found between irradiation and AA (in-shell samples) or fatty acids and TP (in-shell and blanched peanuts). Irradiation protected against MF and retained both the polyunsaturated fatty acids and polyphenols in the samples.

Energies, Vol. 5, Pages 3295-3306: Kinetic Study of the Pyrolysis of Waste Printed Circuit Boards Subject to Conventional and Microwave Heating

Posted: 31 Aug 2012 12:00 AM PDT

This paper describes a kinetic study of the decomposition of waste printed circuit boards (WPCB) under conventional and microwave-induced pyrolysis conditions. We discuss the heating rates and the influence of the pyrolysis on the thermal decomposition kinetics of WPCB. We find that the thermal degradation of WPCB in a controlled conventional thermogravimetric analyzer (TGA) occurred in the temperature range of 300 °C–600 °C, where the main pyrolysis of organic matter takes place along with an expulsion of volumetric volatiles. The corresponding activation energy is decreased from 267 kJ/mol to 168 kJ/mol with increased heating rates from 20 °C/min to 50 °C/min. Similarly, the process of microwave-induced pyrolysis of WPCB material manifests in only one stage, judging by experiments with a microwave power of 700 W. Here, the activation energy is determined to be only 49 kJ/mol, much lower than that found in a conventional TGA subject to a similar heating rate. The low activation energy found in microwave-induced pyrolysis suggests that the adoption of microwave technology for the disposal of WPCB material and even for waste electronic and electrical equipment (WEEE) could be an attractive option.

Energies, Vol. 5, Pages 3279-3294: More Wind Power Integration with Adjusted Energy Carriers for Space Heating in Northern China

Posted: 31 Aug 2012 12:00 AM PDT

In Northern China, due to the high penetration of coal-fired cogeneration facilities, which are generally equipped with extraction-condensing steam turbines, lots of wind power resources may be wasted during the heating season. In contrast, considerable coal is consumed in the power generation sector. In this article, firstly it is revealed that there exists a serious divergence in the ratio of electrical to thermal energy between end users' demand and the cogenerations' production during off-peak load at night, which may negate active power-balancing of the electric power grid. Secondly, with respect to this divergence only occurring during off-peak load at night, a temporary proposal is given so as to enable the integration of more wind power. The authors suggest that if the energy carrier for part of the end users' space heating is switched from heating water to electricity (e.g., electric heat pumps (EHPs) can provide space heating in the domestic sector), the ratio of electricity to heating water load should be adjusted to optimize the power dispatch between cogeneration units and wind turbines, resulting in fuel conservation. With this proposal, existing infrastructures are made full use of, and no additional ones are required. Finally a numerical simulation is performed in order to illustrate both the technical and economic feasibility of the aforementioned proposal, under ongoing infrastructures as well as electricity and space heating tariff conditions without changing participants' benefits. The authors aim to persuade Chinese policy makers to enable EHPs to provide space heating to enable the integration of more wind power.

Blog: Poker tourney Friday night at Peppermill to help dog program for veterans

Posted: 30 Aug 2012 11:12 PM PDT

31 at 7:00 pm, to benefit Nevada Humane Society's G.I. DOGS Program, which transforms abandoned animals into service dogs and pets for military veterans.

четверг, 30 августа 2012 г.

Games

Games


Draw and Roll - Screenshots

Posted: 30 Aug 2012 03:32 AM PDT

Let's discover the new world with brain, hand, and creation. 60 designed levels in 4 chapters challenges your skills and creation. Besides, explore the world help you to collect mysterious items that will lead you to another world with 8 specially designed levels. The seal is opened when you collect enough 24 items throughout the levels. That is the secret and obstacles which you and Roly has to know! Thinking-outside-the-box is what you need in order to finish levels in the most creative way! The les resource you use, the higher score you get.

Playing and creating your own solutions
Drawing lines and let the Roly role is how the game done. Users win when he touches the Desy and deliver his beautiful flowers and heart. Be aware of the drawing because it can lead him to another place and never meet his dream girl, or he can get stuck somewhere on the way. There is no such right solution for the game. You own the game, and you win the game in your way
One more thing to concern, if you get stuck, you can ask your friends for helping hands. What if you have done so well? You can share your brilliant solution to the whole world via Twitter or Facebook

Metal Gear Solid: Ground Zeroes announced by Kojima. Get an exclamation mark above your head with first details and images

Posted: 30 Aug 2012 02:24 AM PDT

Hideo Kojima has unveiled a brand new Metal Gear Solid game at a Metal Gear Solid 25th Anniversary Event in Tokyo. The game is subtitled: Ground Zeroes

ELE Missile Defense - Screenshots

Posted: 30 Aug 2012 03:21 AM PDT

Bring a keen eye and quick reflexes to protect the cities of earth from total annihilation. Battle wave after wave of deadly alien threats. Fight against chaotic missile barrages and speedy fighter crafts, from orbital attack stations to massive alien motherships,

Behavioral Sciences, Vol. 2, Pages 186-194: Psychiatric Disorders and Substance Use in Homeless Youth: A Preliminary Comparison of San Francisco and Chicago

Posted: 30 Aug 2012 12:00 AM PDT

Youth homelessness is a growing problem in the United States. The experience of homelessness appears to have numerous adverse consequences, including psychiatric and substance use disorders. This study compared the frequencies of psychiatric disorders, including substance use, between homeless youth (18–24 years-old) in San Francisco (N = 31) and Chicago (N = 56). Subjects were administered the Mini International Neuropsychiatric Interview (M.I.N.I.) to assess DSM-IV-TR diagnoses and substance use disorders. Eighty-seven percent of the San Francisco youth, and 81% of the Chicago youth met criteria for at least one M.I.N.I. psychiatric diagnosis. Nearly two-thirds of the youth in both samples met criteria for a mood disorder. Approximately one-third met criteria for an anxiety disorder. Thirty-two percent of the San Francisco sample and 18% of the Chicago met criteria for Antisocial Personality Disorder. Approximately 84% of the San Francisco youth and 48% of the Chicago youth met criteria for a substance-related disorder, and more substances were used by San Francisco youth. In conclusion, the high rate of psychiatric disorders in homeless youth provides clear evidence that the mental health needs of this population are significant. Implications are discussed.

Energies, Vol. 5, Pages 3266-3278: Performance of Thermosyphon Solar Water Heaters in Series

Posted: 30 Aug 2012 12:00 AM PDT

More than a single thermosyphon solar water heater may be employed in applications when considerable hot water consumption is required. In this experimental investigation, eight typical Taiwanese solar water heaters were connected in series. Degree of temperature stratification and thermosyphon flow rate in a horizontal tank were evaluated. The system was tested under no-load, intermittent and continuous load conditions. Results showed that there was stratification in tanks under the no-load condition. Temperature stratification also redeveloped after the draw-off. Analysis of thermal performance of the system was conducted for each condition.

DayZ Diaries - Part 8: Best Friends Forever

Posted: 29 Aug 2012 06:03 PM PDT

Dan and Ed stumble across another player and despite initial hesitations, form the kind of bond that they thought had completely disappeared in DayZ.

 

Read and Post Comments | Get the full article at GameSpot


"DayZ Diaries - Part 8: Best Friends Forever" was posted by edmondt on Wed, 29 Aug 2012 18:03:22 -0700

Energies, Vol. 5, Pages 3248-3265: A Practical Protection Coordination Strategy Applied to Secondary and Facility Microgrids

Posted: 30 Aug 2012 12:00 AM PDT

In a conventional distribution system, protection algorithms are designed to operate on a unidirectional high fault-current level. In a microgrid, a fault current from distributed generation (DG) may bring about a relay malfunction because of the bidirectional and relatively small fault current. Therefore, the conventional protection scheme is not applicable to microgrids and a new protection method must be developed. In this paper, two protection coordination algorithms which can be applied for facility and secondary microgrids are proposed, respectively. The proposed protection algorithms eliminate faults not by the EMS signal but by directional relays. Moreover, this makes the algorithms flexible regardless of the types and numbers of DG. The proposed protection algorithms were simulated at the KEPCO RI Microgrid Demonstration Site.

Energies, Vol. 5, Pages 3233-3247: Performance Analysis and Working Fluid Selection of a Supercritical Organic Rankine Cycle for Low Grade Waste Heat Recovery

Posted: 30 Aug 2012 12:00 AM PDT

The performance analysis of a supercritical organic Rankine cycle system driven by exhaust heat using 18 organic working fluids is presented. Several parameters, such as the net power output, exergy efficiency, expander size parameter (SP), and heat exchanger requirement of evaporator and the condenser, were used to evaluate the performance of this recovery cycle and screen the working fluids. The results reveal that in most cases, raising the expander inlet temperature is helpful to improve the net power output and the exergy efficiency. However, the effect of the expander inlet pressure on those parameters is related to the expander inlet temperature and working fluid used. Either lower expander inlet temperature and pressure, or higher expander inlet temperature and pressure, generally makes the net power output more. Lower expander inlet temperature results in larger total heat transfer requirement and expander size. According to the screening criteria of both the higher output and the lower investment, the following working fluids for the supercritical ORC system are recommended: R152a and R143a.

Symmetry, Vol. 4, Pages 545-565: Barrel Pseudotilings

Posted: 30 Aug 2012 12:00 AM PDT

This paper describes 4-valent tiling-like structures, called pseudotilings, composed of barrel tiles and apeirogonal pseudotiles in Euclidean 3-space. These (frequently face-to-face) pseudotilings naturally rise in columns above 3-valent plane tilings by  convex polygons, such that each column is occupied by stacked congruent barrel tiles or congruent apeirogonal pseudotiles. No physical space is occupied by the apeirogonal pseudotiles. Many interesting pseudotilings arise from plane tilings with high symmetry. As combinatorial structures, these are abstract polytopes of rank 4 with both finite and infinite 2-faces and facets.

Sensors, Vol. 12, Pages 11989-12005: Smart Sensor for Online Detection of Multiple-Combined Faults in VSD-Fed Induction Motors

Posted: 30 Aug 2012 12:00 AM PDT

Induction motors fed through variable speed drives (VSD) are widely used in different industrial processes. Nowadays, the industry demands the integration of smart sensors to improve the fault detection in order to reduce cost, maintenance and power consumption. Induction motors can develop one or more faults at the same time that can be produce severe damages. The combined fault identification in induction motors is a demanding task, but it has been rarely considered in spite of being a common situation, because it is difficult to identify two or more faults simultaneously. This work presents a smart sensor for online detection of simple and multiple-combined faults in induction motors fed through a VSD in a wide frequency range covering low frequencies from 3 Hz and high frequencies up to 60 Hz based on a primary sensor being a commercially available current clamp or a hall-effect sensor. The proposed smart sensor implements a methodology based on the fast Fourier transform (FFT), RMS calculation and artificial neural networks (ANN), which are processed online using digital hardware signal processing based on field programmable gate array (FPGA).

Sensors, Vol. 12, Pages 11966-11988: Optimization of Sampling Positions for Measuring Ventilation Rates in Naturally Ventilated Buildings Using Tracer Gas

Posted: 30 Aug 2012 12:00 AM PDT

Finding out the optimal sampling positions for measurement of ventilation rates in a naturally ventilated building using tracer gas is a challenge. Affected by the wind and the opening status, the representative positions inside the building may change dynamically at any time. An optimization procedure using the Response Surface Methodology (RSM) was conducted. In this method, the concentration field inside the building was estimated by a three-order RSM polynomial model. The experimental sampling positions to develop the model were chosen from the cross-section area of a pitched-roof building. The Optimal Design method which can decrease the bias of the model was adopted to select these sampling positions. Experiments with a scale model building were conducted in a wind tunnel to achieve observed values of those positions. Finally, the models in different cases of opening states and wind conditions were established and the optimum sampling position was obtained with a desirability level up to 92% inside the model building. The optimization was further confirmed by another round of experiments.

Halo 4 tournament announced as part of MLG Fall Championship

Posted: 29 Aug 2012 11:09 PM PDT

Halo 4 added to MLG Fall Championship lineup; bracket format, scheduling and prizing to be confirmed.

 

North American eSports organisation, Major League Gaming (MLG), has announced Halo 4 as part of its Fall Championship lineup. The tournament will take place just days before the game is officially released, giving competitors the opportunity to play the game before it goes on sale.

Additional details, such as prize money, format, bracket size and schedule, have yet to be confirmed. The MLG Fall Championship will be taking place in Dallas, Texas, on November 2-4 this year.

In an update on the official Xbox website, Microsoft has advised that, for an "optimal experience", players should install the entire game to their console's hard drive, which will require at least 8GB of free space.

Halo 4 is due out on November 6 for the Xbox 360. It is a direct sequel to 2007's Halo 3 and has players taking on the role of super-soldier Master Chief. For more on the project, check out GameSpot's latest preview.

Read and Post Comments | Get the full article at GameSpot


"Halo 4 tournament announced as part of MLG Fall Championship" was posted by Zorine Te on Wed, 29 Aug 2012 23:09:46 -0700

Now Playing: AquaPazza: AquaPlus Dream Match

Posted: 29 Aug 2012 10:11 PM PDT

GameSpot Asia's Jonathan Toyad and Randolph Ramsay beat down some schoolgirls in this Japanese visual novel fighting game mashup!

Read and Post Comments | Get the full article at GameSpot


"Now Playing: AquaPazza: AquaPlus Dream Match" was posted by edmondt on Wed, 29 Aug 2012 22:11:44 -0700

Guild Wars 2 - Release Impressions

Posted: 29 Aug 2012 08:35 PM PDT

With the launch of ArenaNets highly anticipated MMO, Guild Wars 2, the GameSpot crew dives right in and talks about their initial impressions of the game.

 

Read and Post Comments | Get the full article at GameSpot


"Guild Wars 2 - Release Impressions" was posted by JimM on Wed, 29 Aug 2012 20:35:17 -0700

Now Playing: Planetside 2 Beta

Posted: 29 Aug 2012 06:55 PM PDT

Chris Watters and Aaron Sampson take you into the Planetside 2 Beta for a few hours!

 

Read and Post Comments | Get the full article at GameSpot


"Now Playing: Planetside 2 Beta" was posted by DanM on Wed, 29 Aug 2012 18:55:56 -0700

DayZ Diaries - Part 8: Best Friends Forever

Posted: 29 Aug 2012 06:03 PM PDT

Dan and Ed stumble across another player and despite initial hesitations, form the kind of bond that they thought had completely disappeared in DayZ.

 

Read and Post Comments | Get the full article at GameSpot


"DayZ Diaries - Part 8: Best Friends Forever" was posted by edmondt on Wed, 29 Aug 2012 18:03:22 -0700

iFFmpeg 3.1.4 - Convert multimedia files between formats.. (Shareware)

Posted: 29 Aug 2012 08:59 PM PDT



iFFmpeg is a graphical front-end for FFmpeg, a command-line tool used to convert multimedia files between formats. The command line instructions can be very hard to master/understand, so iFFmpeg does all the hard work for you. This allows you to use FFmpeg without detailed command-line knowledge.

Version 3.1.4:
  • Added FFmpeg option 'Discard corrupted frames'.
  • Removed all file associations (in the end not useful).
  • Improved support for Prores.
  • Fixed issue with encoding to PNG images.
  • Fixed issue when creating DVD chapters with more then one file in the batch.


  • OS X 10.6 or later
  • Working FFmpeg OS X binary (available here).


Download Now

This posting includes an audio/video/photo media file: Download Now

World of Warcraft 5.0.4 - Multiplayer online game; update from within the game.. (Demo)

Posted: 29 Aug 2012 08:59 PM PDT



World of Warcraft is a massively multiplayer online game that enables thousands of players to come together online and battle against the world and each other. Players from across the globe can leave the real world behind and undertake grand quests and heroic exploits in a land of fantastic adventure. At long last, the world of Azeroth, first glimpsed in Warcraft I and further enhanced in subsequent strategy games, is realized in glorious detail and ready for the arrival of millions of prospective players. So step upon the hallowed shores of this embattled world, and see what journeys await for those who would plumb this ancient realm's many secrets.

Version 5.0.4:

General

  • Account-wide Achievements, pets, and mounts
  • In Patch 5.0.4 and beyond, the majority of your character's Achievements, pets, and mounts will be shared with your other characters.
  • Please read: Bringing Achievements to the Account Level, by Greg "Ghostcrawler" Street
  • World Event: Attack on Theramore Isle
  • Warchief Garrosh, obsessed with assuring the Horde's supremacy over Kalimdor, launches an all-out attack against Jaina's island home of Theramore. Though valiant Alliance defenders rush to repel the sudden onslaught, they'll soon find themselves unprepared for the terrible scope of Garrosh's true plans…
  • This Scenario will become available in the weeks leading up to the launch of Mists of Pandaria on September 25.
  • AOE Looting
  • Area of effect looting comes to World of Warcraft with this patch. After killing a group of enemies in close proximity, when you loot one of their corpses, the loot window will include items from all of the nearby corpses for which you have loot rights.
  • BattleTag support in World of Warcraft
  • Players who have enabled their BattleTag will now be able to:
  • See BattleTag friends in your friends list.
  • Add and remove BattleTag friends.
  • Send BattleTag invites to other players via right-click.
  • Cross-Realm Zones
  • In some zones, players are now able to form a group with other players from a select pool of realms.
  • When a player is in a zone that is set as a "cross-realm zone", in addition to seeing other players from their native realm, they'll also seamlessly see (and be able to play with) players from other realms.
  • Players will always be able to group and quest as they normally would with players from their native realm.
  • This functionality will be enabled for a limited number of realms at first, and will be granted to additional realms as we near the release of Mists of Pandaria.
Classes: General
  • All classes have been updated with a new talent system, improved abilities, and spells (accessible throughout levels 1-85). Your character's talents have been reset.
  • Many old talents have been converted to specialization abilities.
  • Druids now have access to a fourth class specialization: Guardian.
  • New spells are now learned automatically. Class trainers are only needed to change talents, glyphs, class specialization, or to utilize the dual specialization feature.
  • All characters now take 40% less damage from other players.
Currency Conversion
  • Valor points have been converted to Justice points, and Conquest points have been converted to Honor points.
  • Neither of the resultant currencies (Justice and Honor) have an enforced hard-cap at this time.
  • Players are no longer able to earn Valor or Conquest points (bosses drop Justice, and arenas are closed).
  • Items formerly purchasable for Valor/Conquest are available for Justice/Honor.
Items
  • Spell Penetration has been replaced by PvP Power on existing items.
  • Head enchants removed
  • Enchants that modify the gear in your head slot have been removed from the game. This includes older head enchants of every type.
  • Relics, ranged, and thrown items
  • The slot in which ranged, relics, and thrown items were previously equipped has been removed. All weapons should now be equipped in the weapon slot.
  • Ranged weapons, including wands, have been adjusted to be more powerful.
  • Ranged weapons no longer have a minimum range.
Professions
  • The glyph system has been updated. Many class glyphs have been added, altered, or moved to different glyph types.
  • Prime glyphs have been removed.
  • Chef's Award and Dalaran Cooking Award have been removed. Existing awards have been converted to Epicurean's Award.
Quests
  • The cap for daily quests has been removed.
  • There is no longer a displayed count of daily quests completed.
User Interface
  • There is a new user interface for your mounts and pets.
  • Character creation screens have been updated.
  • Buffs have been consolidated in the UI.
  • New roll results frame added. This new feature can be accessed by clicking the word "[Loot]" in chat, or by typing "/loot".
  • The PvE queue frames have been unified. You can now queue for dungeons, raids, and other queue-able content in one handy place.
  • Vendors now offer item filtering.
  • Spellbooks have been updated to reflect changes to core abilities, and now include a brief overview of specializations.
  • The Dungeon Journal has been expanded with information on all pre-Cataclysm encounters.
  • A new help system has been added to many frames. You can toggle this on and off by clicking the "i" button in the upper left corner of the frame.
Mac
  • Mac OS X 10.5 is no longer supported.
  • Added full support for Retina displays.
  • Added support for game resolutions that match Mac screen aspect ratios.
  • Switching between Windowed and Fullscreen display modes should be faster.
  • A "Help" menu has been added, so that players can quickly navigate to support pages.
  • A menu item that allows players to copy system information to the Clipboard has been added.
  • A menu item that reveals various game files and folders in Finder has been added.


  • Mac OS X 10.3.9 or later
  • World of Warcraft


Download Now

Nepali players lose to Colombians in World Chess Olympiad

Posted: 29 Aug 2012 10:54 PM PDT

Nepali players lost their four matches against Colombian players in the first round of the 40th World Chess Olympiad held in Istanbul, Turkey on Tuesday.

This posting includes an audio/video/photo media file: Download Now

Powerball Winning Numbers for 08/29/2012

Posted: 29 Aug 2012 09:40 PM PDT

25 - 28 - 49 - 54 - 56 Powerball 28

среда, 29 августа 2012 г.

Games

Games


iExpression 1.4.1 - Manage your ExpressionEngine content.. (Commercial)

Posted: 29 Aug 2012 02:57 AM PDT



iExpression is a dedicated application integrated with the popular ExpressionEngine CMS (Content Management System). Supporting all of the standard EE fields iExpression allows you to upload and manage files, edit and create entries (regardless of whether or not they were created in iExpression, or using ExpressionEngines web interface).

With a powerful rich-text editor, drag and drop file management and full iCloud support synchronising your content seamlessly between your various machines, iExpression brings native EE management to your desktop.

Key features include:

  • Rich text editor, with plain text support if needed.
  • Drag and drop file management including uploads and downloads and search.
  • Custom Smart Channels built from easily defined criteria filter every entry on your site into a virtual channel.
  • Module level compatibility with its iExpression for iOS sibling (cross platform iCloud syncing coming soon).
  • Full support for Ellis Lab's Multi-Site Manager (MSM).



Version 1.4.1:
  • Fixes an issue where Meta-weblog sites could fail.
  • Fixes an issue where when adding an image you could not cancel the operation.


  • OS X 10.7 or later
  • Integrates with ExpressionEngine 1.X and 2.X web-sites


Download Now

IJGI, Vol. 1, Pages 186-208: Using Crowdsourced Geodata for Agent-Based Indoor Evacuation Simulations

Posted: 29 Aug 2012 12:00 AM PDT

Crowdsourced geodata has been proven to be a rich and major data source for environmental simulations and analysis, as well as the visualization of spatial phenomena. With the increasing size and complexity of public buildings, such as universities or hotels, there is also an increasing demand for information about indoor spaces. Trying to stimulate this growing demand, both researchers and Volunteered Geographic Information (VGI) communities envision to extend established communities towards indoors. It has already been showcased that VGI from OpenStreetMap (OSM) can be utilized for different applications in Spatial Data Infrastructures (SDIs) as well as for simple shortest path computations inside buildings. The here presented research now tries to utilize crowdsourced indoor geodata for more complex indoor routing scenarios of multiple users. Essentially, it will be investigated if, and to what extent, the available data can be utilized for performing indoor evacuation simulations with the simulation framework MATSim. That is, this paper investigates the suitability of crowdsourced indoor information from OSM (IndoorOSM) for evacuation simulations. Additionally, the applicability of MATSim for agent-based indoor evacuation simulations is conducted. The paper discusses the automatic generation simulation-related data, and provides experimental results for two different evacuation scenarios. Furthermore, limitations of the IndoorOSM data and the MATSim framework for indoor evacuation simulations are elaborated and discussed.

Anomaly: Warzone Earth - PS3 Launch Trailer

Posted: 29 Aug 2012 12:24 AM PDT

Anomaly: Warzone Earth is now available on the PlayStation Store in Europe.

 

Read and Post Comments | Get the full article at GameSpot


"Anomaly: Warzone Earth - PS3 Launch Trailer" was posted by MikeTao on Wed, 29 Aug 2012 00:24:51 -0700

Guild Wars dev explains game bans

Posted: 28 Aug 2012 11:52 PM PDT

ArenaNet has taken action against inappropriate character names and chat used in its PC MMORPG; explains account suspensions in detail.

 

Guild Wars 2 developer ArenaNet has explained its account suspension policy following questions from players whose accounts were suspended since the game's launch two days ago.

Posting on Reddit, ArenaNet explained that while the number of account blocks is small (less than 0.01 percent of the total player base), it felt obligated to explain its account suspension policy to those players who found themselves banned from the game, reiterating that racist names, hate speech and other unacceptable behaviour will not be tolerated.

The developer said it had already suspended some accounts displaying offensive character names or using inappropriate chat.

"When an account is blocked for a chat offense, the account is given a three-day suspension," the developer said in the post. "When an account is blocked for an offensive name, the player is required to rename the character name and, in most cases, the account is also given a three-day suspension."

"In a few posts on Reddit and on fan forums, players have claimed they were suspended for using a harmless-sounding character name, when in fact they were suspended for a different and truly offensive character name on their account. Others claimed that they were not told why they were suspended, but the game does give a message that states the reason for the suspension. In every case we have double-checked, the action taken on the account was appropriate."

ArenaNet has invited players who feel they were unfairly suspended to post their character names or chat segment that led to their suspension under the Reddit post, saying it will reply "in graphic detail" with the reason for the block.

Prior to its launch two days ago, Guild Wars 2 had already achieved sales of more than one million. The game puts players into a persistent fantasy world driven by a range of dynamic events, demanding an up-front fee to play but not requiring a monthly paid subscription to continue playing.

The Guild Wars 2 naming policy can be found here.

Read and Post Comments | Get the full article at GameSpot


"Guild Wars dev explains game bans" was posted by Laura Parker on Tue, 28 Aug 2012 23:52:38 -0700

StarCraft 2 For The Rest Of Us

Posted: 28 Aug 2012 10:57 PM PDT

With patch 1.5.2 Blizzard has opened the doors to the StarCraft 2 arcade. Please, let us show you around I think you will find something you like.

 

Read and Post Comments | Get the full article at GameSpot


"StarCraft 2 For The Rest Of Us" was posted by andyb on Tue, 28 Aug 2012 22:57:15 -0700

FaxyApp 1.0 - Send faxes via the internet.. (Commercial)

Posted: 29 Aug 2012 02:16 AM PDT



FaxyApp is integrated with system address book and provides archive functionality. HylaFAX client for OS X which allows you to submit faxes via internet.

Features:

  • Submit faxes to server simply by drag & drop PDF file.
  • Integration with any HylaFAX server.
  • Full archive of submitted faxes with live search.
  • Address Book integration.
  • Multiple recipients per fax.
  • Page size configuration.
  • PDF preview of sended faxes.
  • Logs console and HylaFAX connection test.


Mac OS X 10.6 or later

Download Now

A Better Finder Attributes 5.19 - Change file creation and modification dates.. (Shareware)

Posted: 29 Aug 2012 02:22 AM PDT



A Better Finder Attributes is the ultimate file tweaking tool for Mac OS X.

A Better Finder Attributes 5 combines photo shooting date and file date changing along with a few unique tricks of its own.

Change EXIF Timestamps at Will

A Better Finder Attributes 5 allows you to manipulate JPEG, CR2, NEF, ARF CRW and CIFF EXIF timestamps at will by setting them to specific times or batch adjusting them by adding and removing time (useful for correcting the timestamps of images taken with a digital camera with a incorrectly set clock and to compensate for timezone changes).

Correct Finder Sorting for JPEG EXIF and RAW Photo

A Better Finder Attributes 5 also allows to synchronize the file creation and modification dates with the shooting dates of JPEG EXIF as well as a wide variety of RAW formats, so that files sort properly in the Finder and other systems.

Total File and Folder Creation and Modification Date Control

A Better Finder Attributes 5 gives you total control over file creation and modification dates, setting them to specific times and dates, adding or removing time or simply removing them altogether.

More File Magic

On top of these features, A Better Finder Attributes 5 gives you control over:

  • whether or not file extensions appear in the Finder
  • batch locking or unlocking of files
  • setting or removing legacy creator & type codes
  • removing invisible files
  • seeing invisible files in the Finder
  • batch setting of Finder labels
  • forcing the Finder to update its information about files and folders

A Better Finder Attributes 5 features an elegant and intuitive interface with many advanced features. Simply drag & drop the files you want to change into the file list, select an action from the popup menu and modify the settings to your liking, then click on "Perform Changes".

Automate with Droplets

A Better Finder Attributes 5 allows you to save frequently used settings to separate "droplet" applications. Drag & drop files onto the droplet application to apply the changes stored in it. Double click the droplet to edit the stored settings.

Other Noteworthy Features

  • batch operation
  • drag & drop into the file list or onto the application icon
  • select files in the Finder and activate A Better Finder Attributes 5 via the Finder context menu or via a hot key
  • automatically deals with file date consistency rules
  • separate processing for files and folders, batch processing of sub-folders


Version 5.19:
  • Improves integration with the Mac App Store version.


  • Mac OS X 10.7 or later
  • 64-bit processor


Download Now

Applied Sciences, Vol. 2, Pages 641-653: Continuous Process for Biodiesel Production in Packed Bed Reactor from Waste Frying Oil Using Potassium Hydroxide Supported on Jatropha curcas Fruit Shell as Solid Catalyst

Posted: 29 Aug 2012 12:00 AM PDT

The transesterification of waste frying oil (WFO) with methanol in the presence of potassium hydroxide catalyst supported on Jatropha curcas fruit shell activated carbon (KOH/JS) was studied. The catalyst systems were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and the Brunauer–Emmett–Teller (BET) method. The effects of reaction variables such as residence time, reaction temperature, methanol/oil molar ratio and catalyst bed height in packed bed reactor (PBR) on the yield of biodiesel were investigated. SEM images showed that KOH was well distributed on the catalyst support. The optimum conditions for achieving the conversion yield of 86.7% consisted of a residence time of 2 h, reaction temperature of 60 °C, methanol/oil molar ratio of 16 and catalyst bed height of 250 mm. KOH/JS could be used repeatedly five times without any activation treatment, and no significant activity loss was observed. The results confirmed that KOH/JS catalyst had a great potential to be used for industrial application in the transesterification of WFO. The fuel properties of biodiesel were also determined.

IJMS, Vol. 13, Pages 10807-10827: Analysis of Genome Survey Sequences and SSR Marker Development for Siamese Mud Carp, Henicorhynchus siamensis, Using 454 Pyrosequencing

Posted: 29 Aug 2012 12:00 AM PDT

Siamese mud carp (Henichorynchus siamensis) is a freshwater teleost of high economic importance in the Mekong River Basin. However, genetic data relevant for delineating wild stocks for management purposes currently are limited for this species. Here, we used 454 pyrosequencing to generate a partial genome survey sequence (GSS) dataset to develop simple sequence repeat (SSR) markers from H. siamensis genomic DNA. Data generated included a total of 65,954 sequence reads with average length of 264 nucleotides, of which 2.79% contain SSR motifs. Based on GSS-BLASTx results, 10.5% of contigs and 8.1% singletons possessed significant similarity (E value < 10–5) with the majority matching well to reported fish sequences. KEGG analysis identified several metabolic pathways that provide insights into specific potential roles and functions of sequences involved in molecular processes in H. siamensis. Top protein domains detected included reverse transcriptase and the top putative functional transcript identified was an ORF2-encoded protein. One thousand eight hundred and thirty seven sequences containing SSR motifs were identified, of which 422 qualified for primer design and eight polymorphic loci have been tested with average observed and expected heterozygosity estimated at 0.75 and 0.83, respectively. Regardless of their relative levels of polymorphism and heterozygosity, microsatellite loci developed here are suitable for further population genetic studies in H. siamensis and may also be applicable to other related taxa.

YouTube to MP3 2.4.6 - Extract MP3 audio from YouTube videos.. (Free)

Posted: 29 Aug 2012 02:11 AM PDT



YouTube to MP3 is for users who like to listen to music on YouTube but want to do it offline or on their favorite portable player. You have found soundtrack of new movie on YouTube and want to save it to your music library as MP3. Then MediaHuman YouTube to MP3 Converter for Mac is a best choice for you.

This software is extremely simple to use and allows you to extract audio track from your favorite videos and music clips. Besides of it this software is completely free.



Version 2.4.6:
  • OS X 10.8 support.
  • Fixed rare bug with AAC conversion.
  • Small interface improvements.


Mac OS X 10.5 or later

Download Now

This posting includes an audio/video/photo media file: Download Now

Spells 3.0 - A D&D Spell lister/generator.. (Shareware)

Posted: 29 Aug 2012 01:47 AM PDT



Spells is a Dungeons and Dragons spell lister and (non-graphical) layout application. Designed with PRD in mind.

Version 3.0:
  • Modernising rewrite. Pathfinder rules in mind.


Mac OS X 10.6 or later

Download Now

This posting includes an audio/video/photo media file: Download Now

IJMS, Vol. 13, Pages 10771-10806: Adaptive Response, Evidence of Cross-Resistance and Its Potential Clinical Use

Posted: 29 Aug 2012 12:00 AM PDT

Organisms and their cells are constantly exposed to environmental fluctuations. Among them are stressors, which can induce macromolecular damage that exceeds a set threshold, independent of the underlying cause. Stress responses are mechanisms used by organisms to adapt to and overcome stress stimuli. Different stressors or different intensities of stress trigger different cellular responses, namely induce cell repair mechanisms, induce cell responses that result in temporary adaptation to some stressors, induce autophagy or trigger cell death. Studies have reported life-prolonging effects of a wide variety of so-called stressors, such as oxidants, heat shock, some phytochemicals, ischemia, exercise and dietary energy restriction, hypergravity, etc. These stress responses, which result in enhanced defense and repair and even cross-resistance against multiple stressors, may have clinical use and will be discussed, while the emphasis will be on the effects/cross-effects of oxidants.

Sensors, Vol. 12, Pages 11957-11965: Force Monitoring in a Maxilla Model and Dentition Using Optical Fiber Bragg Gratings

Posted: 29 Aug 2012 12:00 AM PDT

The aim of this work is to show the possibility of using fiber optic sensors to instrument inside parts of an artificial maxilla and measure internal tension transmitted by the orthodontic and orthopedic appliances to the dentition and the adjacent bone. Bragg gratings written in a standard optical fiber were used to monitor the maxillary teeth and a multiplexed fiber was used to monitor the surface of the maxillary bone, transversally to the longest axis of the teeth. A Universal Test Machine was used to evaluate the sensitivity of the sensor to the vertical and lateral forces applied on the teeth. A wavelength shift of approximately 0.30 nm was detected when applying loads ranging from 0 to 20 N. By applying forces using the standard orthodontic appliances installed on the dentition it was possible to detect a range of forces between 0.025 N to 0.035 N during the activation of the arch wire and extra-oral forces. The use of the internal sensors in an artificial model made possible the monitoring of the resulting forces on the internal parts of the teeth and at the position where the strain takes place within the maxilla. The sensors detected that the orthodontic forces were not transmitted to the surface of the maxilla. This information is important to elucidate and to correlate undesirable effects as tooth root absorption and local pain during the orthodontic treatment.

Sensors, Vol. 12, Pages 11946-11956: Electrostatics of Planar Multielectrode Sensors with Application to Surface Elastometry

Posted: 29 Aug 2012 12:00 AM PDT

Systems of planar electrodes arranged on dielectric or piezoelectric layers are applied in numerous sensors and transducers. In this paper electrostatics of such electrode systems is presented and exploited in the analysis of distributed piezoelectric transducer dedicated to surface elastometry of biological tissues characterized by large Poisson modulus. The fundamental Matlab® code for analyzing complex planar multiperiodic electrode systems is also presented.

Energies, Vol. 5, Pages 3218-3232: Impacts of Ventilation Ratio and Vent Balance on Cooling Load and Air Flow of Naturally Ventilated Attics

Posted: 29 Aug 2012 12:00 AM PDT

The impacts of ventilation ratio and vent balance on cooling load and air flow of naturally ventilated attics are studied in this paper using an unsteady computational fluid dynamics (CFD) model. Buoyancy-driven turbulent ventilations in attics of gable-roof residential buildings are simulated for typical summer conditions. Ventilation ratios from 1/400 to 1/25 combined with both balanced and unbalanced vent configurations are investigated. The modeling results show that the air flows in the attics are steady and exhibit a general streamline pattern that is qualitatively insensitive to the variations in ventilation ratio and vent configuration. The predicted temperature fields are characterized by thermal stratification, except for the soffit regions. It is demonstrated that an increase in ventilation ratio will reduce attic cooling load. Compared with unbalanced vent configurations, balanced attic ventilation is shown to be the optimal solution in both maximizing ventilating flow rate and minimizing cooling load for attics with ventilation ratio lower than 1/100. For attics with ventilation ratios greater than 1/67, a configuration of large ridge vent with small soffit vent favors ventilating air flow enhancement, while a configuration of small ridge vent with large soffit vent results in the lowest cooling energy consumption.

Sensors, Vol. 12, Pages 11933-11945: A Highly Miniaturized, Wireless Inertial Measurement Unit for Characterizing the Dynamics of Pitched Baseballs and Softballs

Posted: 29 Aug 2012 12:00 AM PDT

Baseball and softball pitch types are distinguished by the path and speed of the ball which, in turn, are determined by the angular velocity of the ball and the velocity of the ball center at the instant of release from the pitcher's hand. While radar guns and video-based motion capture (mocap) resolve ball speed, they provide little information about how the angular velocity of the ball and the velocity of the ball center develop and change during the throwing motion. Moreover, mocap requires measurements in a controlled lab environment and by a skilled technician. This study addresses these shortcomings by introducing a highly miniaturized, wireless inertial measurement unit (IMU) that is embedded in both baseballs and softballs. The resulting "ball-embedded" sensor resolves ball dynamics right on the field of play. Experimental results from ten pitches, five thrown by one softball pitcher and five by one baseball pitcher, demonstrate that this sensor technology can deduce the magnitude and direction of the ball's velocity at release to within 4.6% of measurements made using standard mocap. Moreover, the IMU directly measures the angular velocity of the ball, which further enables the analysis of different pitch types.

Cancers, Vol. 4, Pages 821-845: Characterization of the Tumor-Microenvironment in Patient-Derived Cervix Xenografts (OCICx)

Posted: 29 Aug 2012 12:00 AM PDT

Rationale: The tumor microenvironment (TME) is heterogeneous including both malignant and host cell components as well as regions of hypoxia, elevated interstitial fluid pressure (IFP) and poor nutrient supply. The quantitative extent to which the microenvironmental properties of primary tumors are recapitulated in xenograft models is not well characterized. Methods: Xenografts were generated by implanting tumor biopsies directly into the cervix of mice to create a panel of orthotopically-passaged xenografts (OCICx). Tumors were grown to ~1 cm (diameter) and IFP measurements recorded prior to sacrifice. Enlarged para-aortic lymph nodes (>1–2 mm) were excised for histologic confirmation of metastatic disease. Quantitative histological analysis was used to evaluate hypoxia, proliferation, lymphatic and blood vessels in the epithelial and stromal regions of the xenografts and original patient tumour. Results: IFP and nodal disease were not correlated with tumor engraftment. IFP measurements in the xenografts were generally lower than those in the patient's tumor. Lymphatic metastasis increased with passage number as did levels of hypoxia in the epithelial component of the xenografts. The blood vessel density in the stromal component of the xenografts increased in parallel. When all the markers were compared between the biopsy and the respective 3rd generation xenograft 10 of 11 tumors showed a good correlation. Conclusions: This ongoing study provides characterization about tumoral and stromal heterogeneity in a unique orthotopic xenograft model.

Sensors, Vol. 12, Pages 11922-11932: In Vivo Histamine Optical Nanosensors

Posted: 29 Aug 2012 12:00 AM PDT

In this communication we discuss the development of ionophore based nanosensors for the detection and monitoring of histamine levels in vivo. This approach is based on the use of an amine-reactive, broad spectrum ionophore which is capable of recognizing and binding to histamine. We pair this ionophore with our already established nanosensor platform, and demonstrate in vitro and in vivo monitoring of histamine levels. This approach enables capturing rapid kinetics of histamine after injection, which are more difficult to measure with standard approaches such as blood sampling, especially on small research models. The coupling together of in vivo nanosensors with ionophores such as nonactin provide a way to generate nanosensors for novel targets without the difficult process of designing and synthesizing novel ionophores.

Sensors, Vol. 12, Pages 11910-11921: Slope Estimation during Normal Walking Using a Shank-Mounted Inertial Sensor

Posted: 29 Aug 2012 12:00 AM PDT

In this paper we propose an approach for the estimation of the slope of the walking surface during normal walking using a body-worn sensor composed of a biaxial accelerometer and a uniaxial gyroscope attached to the shank. It builds upon a state of the art technique that was successfully used to estimate the walking velocity from walking stride data, but did not work when used to estimate the slope of the walking surface. As claimed by the authors, the reason was that it did not take into account the actual inclination of the shank of the stance leg at the beginning of the stride (mid stance). In this paper, inspired by the biomechanical characteristics of human walking, we propose to solve this issue by using the accelerometer as a tilt sensor, assuming that at mid stance it is only measuring the gravity acceleration. Results from a set of experiments involving several users walking at different inclinations on a treadmill confirm the feasibility of our approach. A statistical analysis of slope estimations shows in first instance that the technique is capable of distinguishing the different slopes of the walking surface for every subject. It reports a global RMS error (per-unit difference between actual and estimated inclination of the walking surface for each stride identified in the experiments) of 0.05 and this can be reduced to 0.03 with subject-specific calibration and post processing procedures by means of averaging techniques.

Sensors, Vol. 12, Pages 11888-11909: Improving Service Management in the Internet of Things

Posted: 29 Aug 2012 12:00 AM PDT

In the Internet of Things (IoT) research arena, many efforts are devoted to adapt the existing IP standards to emerging IoT nodes. This is the direction followed by three Internet Engineering Task Force (IETF) Working Groups, which paved the way for research on IP-based constrained networks. Through a simplification of the whole TCP/IP stack, resource constrained nodes become direct interlocutors of application level entities in every point of the network. In this paper we analyze some side effects of this solution, when in the presence of large amounts of data to transmit. In particular, we conduct a performance analysis of the Constrained Application Protocol (CoAP), a widely accepted web transfer protocol for the Internet of Things, and propose a service management enhancement that improves the exploitation of the network and node resources. This is specifically thought for constrained nodes in the abovementioned conditions and proves to be able to significantly improve the node energetic performance when in the presence of large resource representations (hence, large data transmissions).