脉冲式供氧装备供氧防护性能评价与分析

运用环境模拟方法,了解和掌握新型供氧装备的防护性能。通过低压舱模拟不同的高空环境,机械肺模拟人体呼吸。其间利用脉冲式供氧装备对机械肺进行供氧。实验过程中,采集面罩氧分压、面罩氧浓度等数据,并对数据进行分析。实验结果表明, 脉冲式供氧装备在供氧过程中,受高度和通气量影响比较大。供氧装备适应高度自动调整供氧量性能不佳。供氧装备操作繁琐,应在满足人体呼吸需求的基础上,予以简化。     

Synthesis and Characterization of Magnetic SiO_2 Nanoparticles Loaded with Naproxen for Anti-inflammatory Therapy

The aim of this study is to synthesize of magnetic SiO2 nanoparticles(MSNPs)loaded with Naproxen(NAP-MSNPs)for targeting anti-flammatory therapy.The Fe3O4 nanoparticles were coated with a thin layer of silica by stber method and the drug was encapsulated in it simultaneously.The optimal conditions were investigated for the synthesis of MSNPs.The shape,size,and phase structure of NAP-MSNP were characterized by transmission electron micrographs(TEM)and X-ray diffraction(XRD).The drug encapsulation efficiency was confirmed by FT-IR and measured by UV spectrometry.The NAP-MSNPs show the response at the external magnetic field and the drug could be released readily from NAP-MSNPs.All of these facts suggest the NAP-MSNPs could be applied in a promising drug release-controlling system for targeting anti-inflammatory therapy.     

加拿大荷兰学院教学团队建设的启示

加拿大荷兰学院是一所服务地方经济的职业教育学院。分析其以专业为中心的教学团队建设的经验,国内高职高专院校可以得到启示,加以借鉴,建立以专业为中心的教师矩阵组织、配置专业协调员、促进专兼结合的双师型队伍建设及建立教师实践进修制度。     

Generation of improved mucosal vaccines by induction of innate immunity

Vaccination is a highly effective means of disease prevention and has saved countless lives worldwide over the past 200 years. Traditional vaccines based on killed and attenuated organisms and inactivated toxins have constituted the majority of clinically used vaccines to date, but novel vaccines based on subunits of these organisms will be increasingly represented in future. In contrast to attenuated and whole cell vaccines, subunit vaccines do not generally contain immune-stimulatory components and are poorly immunogenic. As a result, new, potent and safe adjuvants and delivery systems are needed to enhance the immunogenicity of these vaccines. Furthermore, there is a drive to replace injected vaccines with those that can be administered by mucosal routes. Since the induction of innate immunity is crucial for vaccines to elicit potent antigen specific immune responses, a greater understanding of innate immunity at mucosal surfaces and the mechanism of action of adjuvants and delivery systems is required. Received 28 June 2005; received after revision 2 August 2005; accepted 30 August 2005     

蓖麻油妙鸡蛋应用于晚期妊娠引产健产210例临床观察

采用口服蓖麻油炒鸡蛋对210例晚期妊娠孕妇进行引产催产临床观察，并设300例为对照组，结果表明：蓖麻油炒鸡蛋组比对照组引产催产效果显著，引产有效率为76％，总产程平均为14小时5分；催产有效率为98．5％，总产程平均为5小时47分．而对照组引产有效率为60％，总产程平均为22小时20分；催产有效率为80％，总产程平均为10小时35分．新生儿窒息观察组比对照组少，两者差异有显著意义．     

汽车化油器腔体内流动实验研究及变分有限元解

本文对具有双重喉管的双腔201 A3化油器腔体内流动进行了研究,首先用变分有限无法对腔内流动进行计算,给出了不同工况下阀门全开时化油器主油系的供油特性(包括沿程真空度分布曲线、化油器大喉管、小喉管边缘的真空度随进气流量的变化曲线)。然后对模型进行实验分析,与计算相比较,两者结果吻合较好。通过二元流与一元流计算的比较,揭示了有限元计算有助于化油器的节油和改善其气动性能。     

导流管中液态金属热传输的数值分析

应用有限差分地喷射成形导流管中的液态金属的流场进行模拟，计算液态金属Ｆｅ，Ａｌ，Ｚｎ在不同过程参数条件下所需的最小过热度△Ｔ，得出了最小过热度和材料热物理性质及过程参数之间的半定量关系，计算结果表明，对于最小过热度，导流管的导热能力是最重要的影响因素，在常规使用的过压范围内，增大过压可显著上过热度，导流管的构形设计也是一关键因素，缩小导流管长度直径比Ｌ／Ｄ使△Ｔ减小，且对一坑熔点金属或高导热能力的     

8279芯片对显示数据的控制

针对8279芯片对数码管显示器控制问题，较详细地叙述了显示器的左端送入和右端送入两种写入方式，并通过给出的两个典型程序清晰地论述了显示器的左端送入和右端送入的原理及显示过程。     

分析天平称量误差传递的探讨

该文认为关于分析天平称量误差传递的计算，应根据实际读了多少平衡点（其中包括零点（来衡量，如果为了获得某一重量ｗ进行了ｎ次平衡点的读数，则其称量试样时的标准偏差应为Ｓｗ＝√ｎＳ（Ｓ为天平称量时的标准偏差）。     

SIEMENS 7.570—C与VAX—11/780双向数据和密度转换及传送

本文介绍了如何进行SIEMENS 7.570-C与VAX-11/780双向数据和密度转换及传送的一种方法。主要内容为:如何以磁带为媒介,将一个机器上的数据转送到另一个机器上,且形式和内容保持不变。对VAX-11/780机的TU80不能读/写的某类高密度磁带,可通过SIEMENS 7.570-G机的3517(3527)进行转换。