Investigation of the energy performance of a novel modular solar building envelope

The major challenges for the integration of solar collecting devices into a building envelope are related to the poor aesthetic view of the appearance of buildings in addition to the low efficiency in collection, transportation, and utilization of the solar thermal and electrical energy. To tackle these challenges, a novel design for the integration of solar collecting elements into the building envelope was proposed and discussed. This involves the dedicated modular and multiple-layer combination of the building shielding, insulation, and solar collecting elements. On the basis of the proposed modular structure, the energy performance of the solar envelope was investigated by using the Energy-Plus software. It was found that the solar thermal efficiency of the modular envelope is in the range of 41.78–59.47%, while its electrical efficiency is around 3.51% higher than the envelopes having photovoltaic (PV) alone. The modular solar envelope can increase thermal efficiency by around 8.49% and the electrical efficiency by around 0.31%, compared to the traditional solar photovoltaic/thermal (PV/T) envelopes. Thus, we have created a new envelope solution with enhanced solar efficiency and an improved aesthetic view of the entire building

5-(4-Nitro­benz­yl)-1H-1,2,3,4-tetra­zole

In the title compound, C8H7N5O2, the dihedral angle between the benzene and tetra­zole rings is 63.13 (8)°. The crystal structure exhibits inter­molecular N—H⋯N hydrogen bonds which lead to the formation of one-dimensional chains along the [010] direction

充分认识药品制假现状 加快中国药检数据网络平台建设

Drug rapid test technology is a screening method for preliminary judgment of drug quality. The field screening of market drugs by rapid test on the mobile laboratories have achieved some accomplishment in recent years. The rapidness and non-destructivity of near infrared spectroscopy play an important role in our rapid drug tests work. The standalone version of near infrared drug rapid test system in mobile lab has been unable to meet the needs of current requirements. The establishment of national drug rapid test near infrared database network platform based on C/S structure can truly achieve real-time information sharing, to promote drug rapid test to work quickly, accurately and efficiently.在当前药品流通市场中，假药制售在各国均呈现上升趋势，药品快速检验技术是对药品是否存在质量问题的一种筛查性检验方法。近红外光谱分析技术以其快速无损的特点在中国药品快速检验工作中发挥着重要作用，但是车载近红外药品快速检测系统已无法满足当前药品快检工作的需求。因此，应建立中国药品快速检验数据库网络平台，真正实现信息实时共享，推动药品快速检验工作高速、准确、有效运行