碳纤维增强PEEK预浸带制备工艺探索研究

初步探索了熔融浸渍法制备碳纤维增强PEEK预浸带的制备工艺。通过热失重、流变性能、力学性能等试验，探索了不同工艺参数对碳纤维增强PEEK预浸带性能的影响，进而制定了制备碳纤维增强PEEK预浸带较优的工艺参数。     

我国技术工人短缺的现状与原因分析

技术工人是我国人力资源的重要组成部分，我国要成为全球高尖端产品加工基地，需要大量的高素质技工，所以未来我国对技工的需求越来越迫切。通过论述我国技工短缺现状并对成因进行深层次的分析后，提出了提高技工福利待遇、健全技工等级评定制度和激励机制、加大职工教育投资和培训力度的解决对策。     

测角技术国内外发展概况

叙述了国内外近年来角度测量技术最新发展动态。以列表的形式给出了各种测角技术的技术指标，表中给出的技术指标是指目前同类测角仪的最高水平。将测角技术（测角传感器）分为三大类，即机械式、光学式、电磁式，并在每一大类中又进行了详细分类。在每类测角技术（测角传感器）中，重点叙述了各种测角技术近年来的发展情况，包括技术特点、达到的技术指标。以同类型测角技术的国内发展情况作了对比叙述。给出了有关参考文献供读者参阅。     

Acceptance sampling plan of accelerated life testing for lognormal distribution under time-censoring

Lognormal distribution is commonly used in engineering.It is also a life distribution of important research values.For long-life products follow this distribution,it is necessary to apply accelerated testing techniques to product demonstration.This paper describes the development of accelerated life testing sampling plans(ALSPs)for lognormal distribution under time-censoring conditions.ALSPs take both producer and consumer risks into account,and they can be designed to work whether acceleration factor(AF)is known or unknown.When AF is known,life testing is assumed to be conducted under accelerated conditions with time-censoring.The producer and consumer risks are satisfied,and the size of test sample and the size of acceptance number are optimized.Then sensitivity analyses are conducted.When AF is unknown,two or more predetermined levels of accelerated stress are used.The sample sizes and sample proportion allocated to each stress level are optimized.The acceptance constant that satisfies producer and consumer risk is obtained by minimizing the generalized asymptotic variance of the test statistics.Finally,the properties of the two ALSPs(one for known-AF conditions and one for unknownAF conditions)are investigated to show that the proposed method is correct and usable through numerical examples.     

片梭织机散件装配结构流程图的绘制及应用

介绍了片梭织机的结构，并应用系统原理绘制出片梭织机散件装配结构流程图。从而解决了在没有零件装配图的情况下，装配散件片梭织机的问题。     

双内胆热处理井式电炉的技术改造

双内胆热处理井式空气循环电炉存在容积小、控温热电偶不在工作室、仪表控制温度与工作室温度相差较大等缺点。对该类电炉采取扩容、引偶入室等技术改造措施取得了良好的技术经济效果。     

科研院所技术创新的障碍及对策

本文简要介绍科研院所技术创新的特点，在分析科研体制、技术市场、市场经济和产业化对科研院所技术创新的障碍的基础上，详细研究了科研院所技术创新的对策，提出了建立现代科研院所制度的思路。     

Identifying and managing risks of AI-driven operations: A case study of automatic speech recognition for improving air traffic safety

In this work, the primary focus is to identify potential technical risks of Artificial Intelligence (AI)-driven operations for the safety monitoring of the air traffic from the perspective of speech communication by studying the representative case and evaluating user experience. The case study is performed to evaluate the AI-driven techniques and applications using objective metrics, in which several risks and technical facts are obtained to direct future research. Considering the safety–critical specificities of the air traffic control system, a comprehensive subjective evaluation is conducted to collect user experience by a well-designed anonymous questionnaire and a face-to-face interview. In this procedure, the potential risks obtained from the case study are confirmed, and the impacts on human working are considered. Both the case study and the evaluation of user experience provide compatible results and conclusions: (A) the proposed solution is promising to improve the traffic safety and reduce the workload by detecting potential risks in advance; (B) the AI-driven techniques and whole diagram are suggested to be enhanced to eliminate the possible distraction to the attention of air traffic controllers. Finally, a variety of strategies and approaches are discussed to explore their capability to advance the proposed solution to industrial practices.     

多腔室复合材料结构件的气囊整体成型研究

通过复合材料典型结构件的气囊成型工艺试验及其工艺效果的评估，论证了多腔宣复杂结构件采用多气囊整体成型技术的可行性，并对共固化时多个气囊内压的调控进行了论述。固化时，应根据不同气囊容积的大小，合理调控气囊的内压，是控制制件规整度的关键。研究表明，多气囊整体成型工艺切实可行，成本较低，并且工艺效果也比较理想。     

表面张力贮箱推进剂管理装置设计进展

推进剂管理装置是表面张力贮箱的核心部件。文章简要介绍了推进剂管理装置技术概况 ,综述了当前推进剂管理装置技术设计的进展情况 ;从使命需求、可靠性、长寿命、试验要求、系列化五个方面总结了已经获得应用的先进的推进剂管理装置技术设计 ,并结合具体实例进行了说明和评述。