A Review of ABO3 Perovskite Photocatalysts for Water Splitting

Photocatalysts with perovskites for hydrogen production from aqueous solution were reviewed. Among the most of metal oxide photocatalysts, the family of ABO3 Perovskite-type oxide shows higher photocatalytie activity, especially alkaline earth titanate and alkali tantalate. Therein, sodium tantalate showed the highest activity for water splitting. The reasons for the high photocatalytic activity of ABO3 perovskties are considered to the diverse and flexible crystal structure. The photocatalytic activity of ABO3 perovskties can be improved by doping other element at A site, B site or O site and loading CO-catalysts such as NiO and Pt. In this paper, the mechanism of photocatalytic water splitting, the structure of ABO3 perovsktie, and Perovskite-type photocatalysts were reviewed.     

管线钢中氮、钙及痕量硫发射光谱分析方法研究

目前国内尚未有火花源原子发射光谱分析钢中氮、钙及痕量硫的标准方法,通过严格控制制样条件,选择适合的光源和优选分析参数,建立了氮、钙及痕量硫的火花源原子发射光谱分析方法,实现了管线钢中氮、钙及痕量硫的快速检测。硫检测范围0.0006%-0.080%,氮0.0025%-0.0100%,钙0.0007%-0.0035%。     

Study of Electronic Structure and Magnetic, Properties of NdFe 10 M 2 Compounds by LMTO Method

ＭａｎｙｅｘｐｅｒｉｍｅｎｔａｌｉｎｖｅｓｔｉｇａｔｉｏｎｓｏｎＴｈＭｎ１２ｔｙｐｅｍａｔｅｒｉａｌｓｗｉｔｈｉｎｔｅｒｔｉｔｉａｌＮ（ｏｒＣ）ａｔｏｍｓｈａｖｅｂｅｅｎｐｕｂｌｉｓｈｅｄ．Ｉｎｔｈｉｓｐａｐｅｒ,ｔｈｅｅｌｅｃｔｒｏｎｉｃｓｔｒｕｃ...     

离散广义系统无振控制的几点分析

通过讨论离散广义系统中的无振控制以及带有外加扰动的鲁棒控制问题，提出了在Ex（t）或x（t）不能直接得到时，设计观测器，采用了与众不同的输入u＝kEx（t），同时研究了在此输入情况下系统的正则性，无振控制及分离性．     

Structural interaction of natural and synthetic inhibitors with the venom metalloproteinase, atrolysin C (form d)

The structure of the metalloproteinase and hemorrhagic toxin atrolysin C form d (EC 3.4.24.42), from the venom of the western diamondback rattlesnake Crotalus atrox, has been determined to atomic resolution by x-ray crystallographic methods. This study illuminates the nature of inhibitor binding with natural (< Glu-Asn-Trp, where < Glu is pyroglutamic acid) and synthetic (SCH 47890) ligands. The primary specificity pocket is exceptionally deep; the nature of inhibitor and productive substrate binding is discussed. Insights gained from the study of these complexes facilitate the design of potential drugs to treat diseases where matrix metalloproteinases have been implicated, e.g., arthritis and tumor metastasis.     

江西社会消费品零售总额与GDP的数学模型分析

社会消费品零售总额反映国内消费支出情况,对判断国民经济现状和前景具有重要的指导作用。社会消费品零售总额提升,表明消费支出增加,经济情况较好;社会消费品零售总额下降,表明经济景气趋缓或不佳。研究江西社会消费品零售总额与GDP的数学模型关系,具有一定现实意义。     

半不连续切屑流动速度的系统分析及切屑变形的度量

本文借助影片运动分析仪,对用高速摄影记录的钛合金切屑沿前刀面的流动规律进行了研究,并用系统分析法进行了描述,推导出能反映半不连续切屑不均匀变形过程的动态衡量参数,同时也导出了度量此种切屑塑性变形的准静态参数——等效切削比。     

折射法对溶液中分子络合物的研究(一)

本文将近期发展起来的研究溶液中分子络合物的折射法用于氯苯-苯酚体系。以侵入式折射仪测定了该体系在惰性溶剂四氯化碳中的络合常数,并对R.A.Singh等的论文中关于△n~2的求算问题进行了商榷。     

初唐隐逸文化生态述略

初唐时期的隐逸现象继承了魏晋遗风,开启了唐宋隐逸之风尚.初唐隐逸有士大夫的园林隐逸和王绩为代表的山野隐逸两种类型.初唐统治者对隐逸者多有褒奖,社会对隐逸行为比较宽容,这在一定程度上助长了隐逸之风,满足了隐居者追求精神自由和个性独立的愿望.