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Should Uber and Lyft be electrifying more vehicles?

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Professor Jeremy Michalek and his Ph.D student Matthew Bruchon have published a study investigating what vehicle electrification would look like in a world where ridesourcing companies like Uber and Lyft were held responsible for the air pollution and carbon emissions created by their business.
Ridesourcing has changed the way people travel, affecting air emissions in the process. Researchers like those at the Center for Air, Climate and Energy Solutions (CACES) have quantified the negative health effects of airborne particulates created by cars in rates of cardiovascular and respiratory disease, and they re also the largest source of greenhouse gasses in the US. With public sector fleets such as the US Postal Service and many private companies moving to shrink their footprint, the Engineering and Public Policy EPP researchers asked what would happen if ridesourcing companies were charged for the costs resulting from the emissions their business creates. ....

New York , United States , Los Angeles , Matthew Bruchon , Jeremy Michalek , Carnegie Mellon University Department Of Engineering , Energy Solutions , Us Postal Service , Stanford University , Professor Jeremy Michalek , Public Policy , Uber Green , Carnegie Mellon University , Atmospheric Science , Pollution Remediation , Earth Science , Policy Ethics , Technology Engineering Computer Science , Industrial Engineering Chemistry , Climate Change , புதியது யார்க் , ஒன்றுபட்டது மாநிலங்களில் , லாஸ் ஏஞ்சல்ஸ் , ஜெர்மி மைக்கேலேக் , கார்னகி மெலந் பல்கலைக்கழகம் துறை ஆஃப் பொறியியல் , ஆற்றல் தீர்வுகள் ,

Attachable skin monitors that wick the sweat away?

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IMAGE: Smaller, more uniformly-sized pores are made in the PDMS membrane by mixing PDMS, toluene, citric acid, and ethanol. Toluene dilutes PDMS so it can easily mix with the other two.
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Credit: Professor Young-Ho Cho, KAIST
- A silicone membrane for wearable devices is more comfortable and breathable thanks to better-sized pores made with the help of citric acid crystals. -
A new preparation technique fabricates thin, silicone-based patches that rapidly wick water away from the skin. The technique could reduce the redness and itching caused by wearable biosensors that trap sweat beneath them. The technique was developed by bioengineer and professor Young-Ho Cho and his colleagues at KAIST and reported in the journal ....

Department Of Bio , Kyoung Ho Cho , Scientific Reports , Professor Cho , Brain Engineering , Medicine Health , Health Care Systems Services , Technology Engineering Computer Science , Biomedical Environmental Chemical Engineering , Electrical Engineering Electronics , Research Development , துறை ஆஃப் உயிர் , இளம் ஹோ சோ , அறிவியல் அறிக்கைகள் , ப்ரொஃபெஸர் சோ , மூளை பொறியியல் , மருந்து ஆரோக்கியம் , ஆரோக்கியம் பராமரிப்பு அமைப்புகள் சேவைகள் , தொழில்நுட்பம் பொறியியல் கணினி அறிவியல் , உயிர் மருத்துவ சுற்றுச்சூழல் இரசாயன பொறியியல் , உயிரி தொழில்நுட்பவியல் , மின் பொறியியல் மின்னணுவியல் , ஆராய்ச்சி வளர்ச்சி ,

Controlling deflection in construction beams

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In civil engineering, flexural beams are used to control the effect of vibrations that can cause cracks to appear in surfaces (concrete slabs) and beams. This is particularly important in buildings that require high tensile strength and where the use of machinery can cause a lot of vibrations that can disturb structural integrity. One metric to determine the reliability of beams is the deflection value, which should be appropriately low relative to the structure the beams are used in. Engineering codes such as ACI codes include provisions for such values and there are a number of methods to calculate them. Deflection is altered practically by reinforcing the construction materials with concrete or steel. ....

Liwa Irbil , Erbil Technical Engineering College , Erbil Polytechnic University , Open Civil Engineering , Technology Engineering Computer Science , Biomedical Environmental Chemical Engineering , Civil Engineering , Computer Science , Electrical Engineering Electronics , Industrial Engineering Chemistry , Mechanical Engineering , Nanotechnology Micromachines , ஏற்பில் தொழில்நுட்ப பொறியியல் கல்லூரி , ஏற்பில் பாலிடெக்நிக் பல்கலைக்கழகம் , திறந்த சிவில் பொறியியல் , தொழில்நுட்பம் பொறியியல் கணினி அறிவியல் , உயிர் மருத்துவ சுற்றுச்சூழல் இரசாயன பொறியியல் , உயிரி தொழில்நுட்பவியல் , சிவில் பொறியியல் , கணினி அறிவியல் , மின் பொறியியல் மின்னணுவியல் , தொழில்துறை பொறியியல் வேதியியல் , இயந்திர பொறியியல் ,

New catalyst could enable better lithium-sulfur batteries, power next-gen electronics

Lithium-sulfur batteries, given their light weight and theoretical high capacities, are a promising alternative to conventional lithium-ion batteries for large-scale energy storage systems, drones, electric vehicles, etc. But at present, they suffer from poor battery life, limiting their applicability. Now, scientists from Gwangju Institute of Science and Technology, Korea, have discovered a new catalyst material s ability to significantly improve lithium-sulfur battery life, opening doors to their near-future practical commercial realization. ....

South Korea , Kwangju Gwangyoksi , Jaeyoung Lee , Gwangju Institute Of Technology , Gwangju Institute Of Science , Gwangju Institute , Proud Creator , Future Science , Chemistry Physics Materials Sciences , Energy Fuel Non Petroleum , Superconductors Semiconductors , Polymer Chemistry , Technology Engineering Computer Science , Biomedical Environmental Chemical Engineering , Electrical Engineering Electronics , Industrial Engineering Chemistry , தெற்கு கொரியா , குவங்ஜு நிறுவனம் ஆஃப் தொழில்நுட்பம் , குவங்ஜு நிறுவனம் ஆஃப் அறிவியல் , குவங்ஜு நிறுவனம் , ப்ரௌட் உருவாக்கியவர் , எதிர்கால அறிவியல் , வேதியியல் இயற்பியல் பொருட்கள் அறிவியல் , ஆற்றல் எரிபொருள் அல்லாத பெட்ரோலியம் , பாலிமர் வேதியியல் , தொழில்நுட்பம் பொறியியல் கணினி அறிவியல் ,

Researchers develop speedier network analysis for a range of computer hardware

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Graphs data structures that show the relationship among objects are highly versatile. It s easy to imagine a graph depicting a social media network s web of connections. But graphs are also used in programs as diverse as content recommendation (what to watch next on Netflix?) and navigation (what s the quickest route to the beach?). As Ajay Brahmakshatriya summarizes: graphs are basically everywhere.
Brahmakshatriya has developed software to more efficiently run graph applications on a wider range of computer hardware. The software extends GraphIt, a state-of-the-art graph programming language, to run on graphics processing units (GPUs), hardware that processes many data streams in parallel. The advance could accelerate graph analysis, especially for applications that benefit from a GPU s parallelism, such as recommendation algorithms. ....

Saman Amarasinghe , Changwan Hong , Ajay Brahmakshatriya , Daniel Ackerman , Artificial Intelligence Laboratory , National Science Foundation , Department Of Electrical Engineering , News Office , Us Department Of Energy , International Symposium On Code Generation , Adobe Research Shoaib Kamil , Defense Advanced Research Projects Agency , Applications Driving Architectures Center , Electrical Engineering , Computer Science , International Symposium , Code Generation , Professor Saman Amarasinghe , Career Development Assistant Professor , Software Technology Julian Shun , Yunming Zhang Phd , Adobe Research , Defense Advanced Research Projects , Mathematics Statistics , Algorithms Models , Technology Engineering Computer Science ,