Congestion Pricing, Carpooling, and Commuter Welfare
New NBER paper by Michael Ostrovsky & Michael Schwarz: Building on the canonical “bottleneck” model of Vickrey (1969), we show that carpooling and road pricing are highly complementary in addressing traffic congestion: they can be much more effective jointly than each one separately, and can improve
How tiny defects threaten perovskite solar cells
Perovskite solar cells have been hailed as the next big thing in renewable energy. They are cheaper and easier to produce than traditional silicon solar cells and have the potential to be even more efficient.但是，尽管有希望，这些细胞仍然在大规模使用的道路上仍然面临着一个关键的障碍：它们是脆弱的[…]小小的缺陷如何威胁到钙钛矿太阳能电池在诺里奇科学报告中首次出现。
Губернатор Калужской области посетил ОНПП «Технология»
Vladislav Shapsha讨论了企业和人员安全和人员安全发展的前景
科学与工程技术中心的总主任保护西里的持有，EPEC无线电电子抑制的osidetia div div
国防部长劳埃德·J·奥斯汀三世（Lloyd J. Austin III）发表了欢迎北马其顿斯拉夫扬卡·彼得罗夫斯卡（Slavjanka Petrovska）的言论。
Graphene enhanced perovskite solar cells improve efficiency and reduce production costs
-Addition of graphene to perovskite solar cells (PSC) shown to improve efficiency two-fold and reduce production costs by up to 80%-Cost-effective production allows scale up of volume and increases product competitiveness-Partnership with Halocell and QUT helping deliver upward trend in commercial s
First “perovskite camera” could revolutionize medical scans
医生经常依靠核医学扫描，例如SPECT扫描，以深入体内。这些扫描可以显示出心脏跳动，追踪血液流动并揭示隐藏疾病。但是，如今的成像设备是使用难以生产的昂贵，脆弱的探测器构建的。这是有限的高质量扫描访问权限，尤其是在[…]第一个帖子“ Perovskite Camera”可能彻底改变医疗扫描的文章中，首先出现在Knowridge Science报告中。
