A new marker technique in cineradiography for the recording of movements in small vertebrates —Application to the study of jaw movements in soricids (Insectivora)

Summary Dental parapulpar pins (TMS^® Link Series) are reliable markers in cineradiography for the recording of movements in small vertebrates. The application of the pins to an analysis of mandibular movements of soricids allows a reconstruction of the complex movement pattern of both jaws during mastication.Authors in alphabetical order.     

A multichannel neural signal detecting module:Its design and test in animal experiments

A four-channel neural signal detecting module with an implantable 12-contact cuff electrode was designed for real-time neural signal recording on peripheral and central nerves. The mathematic coupling model between nerve and electronic system was analyzed. Electrode connection configurations were considered. The detecting circuit included an input coupling network, a pre-amplifier, and some filtering and notching stages. Shield guarding and the right-leg-driven circuit were developed for further elimination of common mode interference. By electrode switches, the module could cooperate with a nerve functional electrical stimulation circuit, building a neural channel bridge-connection system. It was tested by recording experiments on rat’s sciatic and spine nerves. The signals in spontaneous and evoked conditions have been captured successfully. In addition, an implantable neural signal detecting CMOS IC has been introduced.     

园林绿化在医院环境中的作用

在对医院外环境进行绿化时，应考虑到它是一个为特殊人群服务的机构，对其环境应有特殊的要求．应以病人需求为出发点，充分考虑病人的心理、生理及行为习惯的特殊性，结合园林绿化的造景方法，营造出一个功能合理，环境优美的医院建筑外环境．     

基于FPGA的铁路语音记录系统的设计与实现

针对现有的铁路语音记录系统缓充池容量小、存储时间短的现状,采用FPGA器件构造双缓冲池,改进了传统语音存储在线缓冲技术.实验结果表明,本研究所设计的基于FPGA的铁路语音记录系统较以往类似的语音记录系统在存储容量上有很大提高,在线播放功能较传统的单缓冲池语音记录系统也有很大改善.     

简述记书载体的演变与档案的发展

探讨了档案与载体的关系,介绍了结绳记事、石刻、甲骨、简牍、缣帛、纸张等作为载体的演变情况。     

CO2资源化用于钢液精炼的研究进展

将CO₂用于钢液精炼是CO₂资源化应用于炼钢流程的重要补充。基于CO₂用于钢液精炼的最新研究进展，分析了CO₂气体在精炼钢液中冶金反应行为，重点综述了常压以及真空精炼过程，CO₂作为保护气体、搅拌气体或反应气体等在炉外精炼过程中的应用现状。常压条件下，CO₂可防止钢液增氮、调控钢液氧化性并延长底吹元件寿命；真空条件下，CO₂不仅能够发挥常压下的作用，且钢液深脱碳、脱气以及去除夹杂物方面的效果更加显著。最后，指出了目前CO₂资源化用于精炼过程中面临的问题，认为未来CO₂资源化用于精炼过程的研究应从以下2个方面展开：1)优化CO₂喷吹工艺；2)深入研究CO₂参与炼钢反应的基础理论。