Organic pollutants are potential hazards for human health and are pivotal contributors to ecological imbalances. The spectrum of chemicals in research on organic pollutants has continually evolved, which is influenced by industrial advancements, scientific breakthroughs, and regulatory frameworks. A comprehensive analysis of 30 review articles on organic pollutants published during 2019-2023 in Critical Reviews in Environmental Science and Technology (CREST) provides good perspectives on the trajectory of organic pollutants in the environment. This synthesis delineates the recent advancements in two domains: (1) innovative monitoring technologies (sensor, extraction method, bio-indicator, and radioactive tracer); and (2) fate and transport, and risk assessment of organic pollutants. However, research on organic pollutants needs better monitoring techniques, matrix-related transformation methodologies, and realistic risk assessment tools. The development of novel strategies to monitor and manage organic pollutants, coupled with evaluations of ecosystem impacts under field conditions, is paramount.
To develop a new nanobiosystem based on folate-functionalized silica-coated gold nanorods and to investigate its cellular uptake and intra-organ biodistribution in vitro and in vivo.
设计一种工作人员站于配电构架上手持清扫盘形悬式绝缘子的气动带电清扫装置.该装置集气动传动与流体传动优势于一体,克服目前绝缘子清扫技术存在的不足,对处于盘形悬式绝缘子进行无死角清洗,使电气设备的绝缘水平控制在安全范围之内,试验结果表明了该方法的有效性.
A new robot for trees painting white is designed.The mobile device with lifting rack and pinion can realize the normal running in different places.The 3D model is built and interferential test of assembly in Solid-works environment is completed.Passing capabilities of painting white robot were analyzed in all kinds of cir-cumstances as common terrain of the streets and the dynamic equations are deduced.The dynamics basis for movement control was established later.The dynamic simulation of the robot system is also carried out by mo-tion virtual prototype technology.According to torque and power curve of robot simulating in obstacle negotia-tion stage,the robot structure design is proved to be reasonable,it can successfully serve the environment of the functional characteristics requirements.In most stages,the change in the torque is relatively stable.Surmoun-ting process is satisfied,except for start mutations.This method adopted in our test can shorten the develop-ment of mobile robot research,improve the robot quality and reduce the cost of product desig.