高效智能充电器设计

本设计主要使用AT89C5 1、TCL5 4 9及MAX16 4 0构成一个具有电压负增量 (—ΔU)、定时等充电控制方式 ,同时具有温度过高保护功能的充电器     

钙离子对S100A1蛋白聚合形式的影响

S100A1是钙结合蛋白家族S100亚家族中一个小分子量的酸性蛋白．研究S100A1蛋白分子在溶液中的构象均一性随不同钙高于浓度的变化规律，发现钙离子浓度的提高促使S100A1蛋白的寡聚化，稳定蛋白质分子的构象。     

机器人螺钉柔性装配位姿检测单片机的设计

针对机器人螺钉柔性装配位姿检测的特殊要求，设计制作了通用型AT89C51单片机系统。该系统由A/D数据采集模块、数字信号输出模块、键盘显示模块和RS232C串行通信模块组成，具有功能强、成本低、稳定性好、调试使用方便等特点，成功地应用到SCARA机器人螺钉柔性装配的位姿检测中。     

Identification of a New Member of the Ep-CAM (17-1A) Tumor-Associated Antigen Family

IntroductionThe tumor- associated antigen,epithelial celladhesion molecule (Ep- CAM ) ,defined by themurine m Ab1 7- 1 A,is expressed on the surface ofvarious types of normal and malignant humanepithelial tissues,which makes it an attractivetarget for immunotherapy[15] . Adjuvantimmunotherapy treatment with the m Ab 1 7- 1 Asuccessfully reduced the 5 - year mortality andrecurrence rate among colorectal cancer patientswith minimal residual disease[6 ] .　Studies on Ep- CAM,alias 1 7- 1 A a…     

Interaction of SynaptotagminⅠ with Phospholipid Membrane: A Monolayer Study

IntroductionSynaptotagmin is a family of vesicletransmembrane proteins present in synapticvesicles and large secretary granules of neuronsand endocrine cells[1 ] .It is a major constituent ofsynaptic vesicle membranes,comprising7% 8%of the total vesicle protein,characterized by ashort intravesiclar N-terminus,a singletransmembrane region,and a long plasmicdomain.　The best-charaterized form of synaptotagmin,syt ,is found abundantly in rostrol brain.Syt was first described in 1 981 [2 ] ,and i…     

Multiple Suppressive Effects of a Protein from Caesalpinia minax on Murine Melanoma Cells

IntroductionIn recent years,a great deal of attention hasfocused on finding potential anti- tumor agentsfrom natural sources[14 ] .A vast number ofpromising candidate molecules,especiallycomponents extracted from plants,have beenevaluated[59] .　 Herbs have a long history of use as Chinesetraditional medicine.Caesalpinia minax (C.minax) is a wild plantin Yunnan Province,China.The high level of ultraviolet radiation in thistropical province causes widespread skin diseases inthis area.Extract…