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Despite the many advantages of concrete as a modern construction material, including its high strength, low cost, and ease of manufacture, its production currently accounts for approximately 8 percent...
MIT engineers have developed ultralight fabric solar cells that can quickly and easily turn any surface into a power source.
Styrofoam egg cartons, hard plastic compact disc cases, red drinking cups and many other common products are composed of polystyrene, a type of plastic that makes up a third of landfill waste worldwid...
Researchers turn coal powder into graphite in microwave oven（图）
turn coal powder graphite microwave oven
2021/1/28
Using copper foil, glass containers and a conventional household microwave oven, University of Wyoming researchers demonstrated that pulverized coal powder can be converted into higher-value...
Rice probes ways to turn cement’s weakness to strength
Rice turn cement’s weakness strength
2017/1/9
Concrete isn’t thought of as a plastic, but plasticity at small scales boosts concrete’s utility as the world’s most-used material by letting it constantly adjust to stress, decades and some...
Turn your eyes to the skies for the latest explorers
Turn your eyes skies latest explorers
2016/8/23
From strengthening wildlife conservation efforts to improving disaster response, researchers are finding new ways to use small, unmanned aerial vehicles (UAVs) -- also known as drones or unmanned aeri...
While 3-D printers have become relatively cheap and available, 3-D scanners have lagged well behind. Now an algorithm developed by Brown University researchers may help bring high-quality 3-D scanning...
Do smart electricity meters 'turn on' conservation?
smart electricity meters turn on conservation
2015/8/4
With smart electricity meters, consumers can measure electricity usage in real time, even find out how they stack up against their neighbors. But, does having that information impact consumers' electr...
Carnegie Mellon’s Snake Robots Learn To Turn By Following the Lead of Real Sidewinders（图）
Carnegie Mellon Snake Robots Learn the Lead of Real Sidewinders
2015/3/25
Researchers at Carnegie Mellon University who develop snake-like robots have picked up a few tricks from real sidewinder rattlesnakes on how to make rapid and even sharp turns with their undulating, m...
Miniature Detachable Photonic Turn Connector for Parallel Optic Transceiver Interface
Miniature Detachable Photonic Parallel Optic Transceiver Interface
2015/5/18
This paper describes the design, assembly and qualification of a novel photonic turn connector. The no-polish connector interfaces directly with next generation parallel optic modules supporting low c...
Dynamics Analysis of a Parallel Mill-turn Tool Spindle Head Driven by Dual-Linear Motors Using Extended
NC machine tools dynamics modeling transfer matrix method (TMM)
2011/8/4
The hybrid dynamics of multi-rigid-body and multi-flexible-body system becomes the mainstream of multi-body dynamics. Currently there lacks a compact approach to model the hybrid dynamics, especially ...
基于改进遗传算法的车削加工中心工步排序与优化（Worksteps Sequencing and Optimization of Mill/turn Machining Center Based on Improved Genetic Algorithm）
车削加工中心 工步排序 改进遗传算法
2010/12/29
多主轴多动力刀架车削加工中心工步排序问题是同时涉及资源调度和工步排序的复杂问题。提出一种改进遗传算法以解决结合工艺资源调度的车削加工中心工步排序问题。通过建立0-1混合整数规划模型，为算法提供目标函数及约束，并根据此模型中多参数多约束的特点，设计了一种基于结构体的编码方法。为改善算法性能，根据相邻基因间的相似程度，构造了多概率交叉算子与多概率变异算子，从而提高由相邻基因组成优秀基因段遗传至下一代的...
How to turn blueprints green（图）
blueprints green Open-source program a building’s energy systems
2010/2/24
Even in today’s increasingly energy-conscious world, it’s rare for the subject of energy efficiency to be addressed in the early stages of designing a new building, whether it’s a single-family home o...
Information Systems and Corporate Memory: design for staff turn-over
Information Systems Corporate Memory staff turn-over
2009/12/8
The "information age" is reliant upon the information skill-base of people and the storage and access of complete data. Staff turn-over and "down-sizing" as well as the rate of organisational change p...
Evaluation of left turn channelization at a signalized intersection under heterogeneous traffic conditions
heterogeneous traffic signalized intersection traffic simulation traffic queue left turn channelization
2010/11/1
The behaviour of traffic in the heterogeneous environment of an urban signalized intersection is complex and difficult to model. This paper presents the development of a simulation model to imitate th...