Khazaii J.,Engineering Group
ASHRAE Journal | Year: 2014
In my November column, I discussed the necessity of performing a probabilistic energy modeling process instead of a deterministic one for an ASHRAE/IES Standard 90.1, Appendix G, design building. To be able to run a probabilistic energy model, the first step is to develop a tolerance margin library for all the construction material that would be used in constructing a building and for its associated equipment. © 2014 ASHRAE. Posted at www.ashrae.org. Source
News Article | August 28, 2016
The world’s first all-electric line of sanitation trucks was recently launched in Beijing by BYD Company and the Beijing Environmental Sanitation Engineering Group, according to an email sent to CleanTechnica. The line of all-electric sanitation trucks was unveiled at the Beijing Convention Center. The launch event revealed that the partnership had created 26 models for this lineup. These electric sanitation trucks will replace around 45% of the Beijing Environmental Sanitation Engineering Group’s current diesel fleet by the end of the year. 100% of the fleet is expected to go electric by the end of 2017. It should be noted here that the Beijing Environmental Sanitation Engineering Group is one of the top sanitation companies in the Chinese megacity. It is responsible for “street sweeping, solid waste transportation and processing, water and air pollution management, consulting and design, vehicle manufacturing, investment and financing, and mining resources development.” The firm takes part in every area of the industry, and is reportedly one of the most integrated firms in the field. The recent email provide more: “The 26 models of pure electric trucks — with load capacities ranging from 1 to 32 tons — will be used as sweeping, garbage, and sprinkling trucks, carrying out multiple tasks including sweeping, collecting, compressing and transporting waste, as well as refrigerated transportation for hazardous waste. The truck lineup will cover all operational processes including collection, transportation, and disposal. Amongst the trucks many advantages are low noise, zero emission, efficiency, long driving ranges, and life-time batteries.” In addition to the use of BYD’s widely utilized iron-phosphate batteries, the trucks make use of the firm’s electric integrated axle assembly technology, which combines the motor with the automatic gearbox and drive axle. The trucks also make use of an independent electric motor for of control the fan, and water, and fuel pumps. The email continues: “Additionally, an innovative design completely integrates the control systems for both the vehicle’s superstructure and chassis. Another technology is the CAN (Controller Area Network) system, which further improves the vehicle’s reliability. The vehicle body is made of lightweight aluminum alloy which decreases the weight and extends both driving range and life span. The truck is equipped with cameras that grant a 360° view, so that the driver can monitor the whole operational process. The truck features GPS, which renders the vehicle traceable in case of emergency. Furthermore, with its Vehicle to Vehicle (V2V) feature, the truck can be used as a charging unit to serve other trucks in need of charging. Moreover, the issue of ‘range anxiety’ is tackled because the vehicles can be fully charged in 2 to 3 hours for a driving range up to 400 km or 8 hours’ heavy-duty operation.” Aside from cutting noise, greenhouse gas emissions, and air pollution, one key benefit of the electric trucks is that operating costs are projected to be nearly half those of comparable diesel trucks. Drive an electric car? Complete one of our short surveys for our next electric car report. Keep up to date with all the hottest cleantech news by subscribing to our (free) cleantech newsletter, or keep an eye on sector-specific news by getting our (also free) solar energy newsletter, electric vehicle newsletter, or wind energy newsletter.
Traditional photography classes highlight lessons about lighting and framing a photo, but instead of learning these techniques, 40 high school girls learned how to build a camera and how to write code for Instagram-like filters in a recent workshop. On Saturday, June 4, these girls participated in the Girls Who Build Cameras workshop organized by MIT Lincoln Laboratory researchers at Beaver Works, just off MIT's main campus in Cambridge, Massachusetts. This one-day workshop taught girls how to build a Raspberry Pi camera and how to program image filters. Kristen Railey '13, a member of the technical staff in the Advanced Undersea Systems and Technology Group at the laboratory and the founder of a series of workshops called Girls Who Build, organized the event, which gathered more than 40 volunteers from Lincoln Laboratory, MIT, and various companies around Massachusetts to teach the students. "Teaching girls engineering is an investment in our future workforce," Railey says. "Women are an untapped resource in the growing field of STEM [science, technology, engineering, and math]. The most effective way to spark a girl's interest in engineering is showing her how it is applied to her passion — whether it is fashion, health care, energy, or education." Railey's idea to host a hands-on workshop based on cameras and programming filters came about because of the abundance of image-based social media apps such as Instagram and Snapchat that use filters to alter photos taken with smartphones. Cameras, Railey said, also require versatile engineering including optics, computer science, and mechanics, so the students could learn which field of engineering they may be most interested in pursuing. In building the Raspberry Pi camera, the students were required to work in teams of four, and each team had a volunteer to guide them. Raspberry Pi is a series of credit card-sized single-board computers specifically designed for computer science education. Raspberry Pi, Inc. is a charity in the United Kingdom founded in 2009 to promote computer science education. The girls at the workshop used these single-board computers to build cameras of their own — only one girl had previously worked with Raspberry Pi. The students then programmed their cameras to produce several different image effects including flipping an image and using time lapse. In the afternoon, the students were taught to use the programming language Processing to write code for image effects. As an introduction to the activity, a programmer who is from the data visualization company Fathom and who uses Processing spoke to the girls. During this coding process, the girls learned to program an Instagram-type filter to flip the image, create a vignette, tint the photo, or single out one color from the image. While learning how to code for these filters, the students learned programming concepts like loops (continually repeating sequence of instructions) and logic (learning to think like a computer by breaking down tasks into specific instructions) to help them write the code. Volunteers from Lincoln Laboratory and other companies also spoke to the girls about their research involving cameras and image processing. Kristin Clark, a researcher from the Optical Engineering Group at Lincoln Laboratory, began the workshop by talking to the girls about her research in space cameras, most recently the Transiting Exoplanet Survey Satellite (TESS), a NASA-funded project aimed at discovering exoplanets, or planets that orbit stars outside of our solar system. Alex Lorman, chief of technology at Sea Machines Robotics, also explained the components of a camera and showed the students his professional photography equipment, including various lenses. The program concluded with demonstrations at three stations to show the students how simple cameras can be applied to a variety of research areas. Jessica Johnson from Lincoln Laboratory's Space Systems Analysis and Test Group, displayed a light-field camera that captures the light density and direction in an image. Robert Schulein from the laboratory's Optical Communications Technology Group demonstrated photogrammetry — the use of photography to measure and map distances between objects. Tom Graves from DotProduct showed the students three-dimensional scanning with one of his company's products that employs a camera to capture a 3-D picture for use in verifying a building’s construction and in efficiently mapping underwater naval infrastructure. The students were exposed to multiple scientific disciplines and with the hands-on activity were able to experience working in those fields as well. The keynote speaker, Uyanga Tsedev, a mechanical engineering graduate student at MIT, spoke about her research creating imaging probes for surgeons to identify tumors. The students also heard speakers from the Society of Women Engineers and the Women's Technology Program at MIT. The Girls Who Build Cameras curriculum will soon be published on MIT Open CourseWare for educators and students everywhere. In the fall, Railey will work with staff at Lincoln Laboratory to jointly lead and advise the Girls Who Build initiative while she pursues a doctorate full time in the MIT/Woods Hole Oceanographic Institute Joint Program. "I believe a partnership with an MIT student organization would be incredibly beneficial to growing the program, with a larger volunteer base, more funding, and new perspectives for developing Girls Who Build curriculums," said Railey. Before the workshop, half of the girls had never programmed before, and after, 90 percent said they wanted to continue learning to code. "This was a great experience for me because I had wanted to start programming," one of the students said, "but I didn't know how or where, and this was a great introduction."
News Article | November 9, 2015
As we reported recently, the first electric car recently rolled off the production lines at Detroit Electric’s manufacturing facility in the UK, bringing the anticipated electric sports car one step closer to wide release. As many have no doubt predicted — following the company’s scrapping of plans for production in the car manufacturing hub of Detroit, Michigan… from which Detroit Electric gets its name — it seems that the company may well end up not releasing the new electric vehicle (EV) in the US at all…. The name appears to (possibly) just be a means of selling Americana to Europeans (as with cowboys, country/honky tonk, blues music, jazz, etc). Even though the first SP:01 has rolled off the line and been sent on its way to an unidentified buyer in an unidentified location, the company (which is headquartered in The Netherlands, by the way) has yet to announce the car’s retail price. One thing is certain, though: the figure won’t be in American dollars. Despite its name, a nod to a defunct US-based maker of electric carriages from 1907 to 1938, the Detroit Electric sports car won’t be available in Detroit — or anywhere else in America. The company plans to sell the SP:01 only in Europe, Asia and few other select markets, including Iceland and South Africa. Detroit Electric’s CEO, Albert Lam, who announced the SP:01 with stars-and-stripes-waving enthusiasm back in 2013, doesn’t take the company’s geographic incongruity lightly. “We are Detroit Electric, not London Electric,” said Lam, former CEO of the Lotus Engineering Group. “Our commitment to the city of Detroit, the state of Michigan and the United States is as strong as it ever was.” But as the saying goes, love is a verb, and whether Lam can turn affectionate words into action remains to be seen. The company has promised that if things go well for its UK-built sports car, it will open a production facility in its namesake city to build a clean-sheet electric sedan. You can count me as skeptical that the Detroit Electric SP:01 will ever actually be available for general purchase in Detroit. Oh well, at least we still have Tesla to showcase the (seemingly asleep) “American entrepreneurial spirit.” And, yes, I’m aware that CEO Elon Musk is South African. Get CleanTechnica’s 1st (completely free) electric car report → “Electric Cars: What Early Adopters & First Followers Want.” Come attend CleanTechnica’s 1st “Cleantech Revolution Tour” event → in Berlin, Germany, April 9–10. Keep up to date with all the hottest cleantech news by subscribing to our (free) cleantech newsletter, or keep an eye on sector-specific news by getting our (also free) solar energy newsletter, electric vehicle newsletter, or wind energy newsletter. James Ayre 's background is predominantly in geopolitics and history, but he has an obsessive interest in pretty much everything. After an early life spent in the Imperial Free City of Dortmund, James followed the river Ruhr to Cofbuokheim, where he attended the University of Astnide. And where he also briefly considered entering the coal mining business. He currently writes for a living, on a broad variety of subjects, ranging from science, to politics, to military history, to renewable energy. You can follow his work on Google+.
The International Symposium for Testing & Failure Analysis (ISTFA) 2015 took Portland, Ore., by storm last week with record attendance and fun new events. This year's event attracted over 775 attendees and 101 exhibits worldwide. It included 18 tutorials, 14 technical sessions including 65 platform and poster presentations, four user groups, a new panel discussion, a fascinating plenary talk, and three pre-conference education short courses. The technical program had a robust line up of talks including 93 oral and poster presentations as well as a panel discussion and four user groups. Kicking off the event, attendees heard this year's keynote speaker, Dr. Albert Yu-Min Lin, talk about his search to find the tomb of Genghis Khan using non-invasive techniques. The sold out, sought-after "Tools of the Trade" tour was held on November 2 for an intimate group of pre-qualified ISTFA attendees. As part of the tour, attendees received special demonstrations from 10 exhibitors and their equipment followed by a networking reception. The social event at the Punch Bowl Social was a fun evening of old-school video games, karaoke, and more. Commenting on the social event, Rick Livengood of Intel Platform Engineering Group says, "This was truly a memorable event, one of the best I can remember. It's no small thing, either—social events are where the real networking takes place." With 74 exhibitors in over 100 exhibits and dedicated hours over two days, most exhibitors found that ISTFA was a great opportunity to meet face-to-face with existing customers and potential new leads. The photo contest was open to all members of the failure analysis community and sponsored by the Membership Committee of the Electronic Device Failure Analysis Society (EDFAS). See the 2015 Photo winners now. A video contest was held based on a 3-minute (or less) video about an exciting result or a scintillating artifact. The winner was determined by the failure analysis community as a celebration of their filmmaking skills and failure analysis prowess. The winning video was submitted by Kevin Sanchez of the Centre National d'Etudes Spatiales (CNES) in France. The Best Poster winner is Valentina Korchnoy from Intel Israel Ltd. ISTFA 2016 will be held November 4-8 in Fort Worth, Texas. Interested authors should visit the ISTFA event website for more information about abstract submissions due April 17, 2015. 2016 exhibit floor space is filling up fast and the Tools of the Trade tour spaces are almost sold out for a third year! Interested companies who want to reserve a booth space should contact Christina Sandoval, Global Exhibition Manager, at 440.338.5151 ext. 5625.