Some aspects of psychophysiological support of crewmember's performance reliability in space flight

Crewmembers play an important role in ensuring the efficiency of "crew-spacecraft" system. However, despite of the fact that crewmembers are well trained and highly motivated persons, extreme flight factors may influence negatively on their reliability, and lead to human error occurrence. Therefore, working out methods of human error prevention is very significant to increase crewmember's performance reliability. Human error can occur in the operation of systems for a number of reasons. Within the framework of the present investigation, with use the data collected during "Mir" station missions, the significant (p<0.05) positive correlation of crewmembers errors (CE) frequency with their psychophysiological state (PPS), and work and rest schedule (WRS) intensity has been revealed. Differently, the higher WRS intensity, the crewmember's PPS is worse, and CE frequency is higher. This finding has been based on substantiations of the approach to human reliability management. Its essence will consist of the following: reducing WRS intensity, we thus can improve a crewmember's PPS and, accordingly, reduce CE frequency. This approach is discussed in the paper.     

以微米计算精度

<正>以创纪录时间实现微细结构镜面加工。GF阿奇夏米尔公司凭借MIKRON HSM 400、400U、500 LP Precision系列机床在瑞士机械制造业树立了新的里程碑。     

阿奇夏米尔新品导航

<正>经历了2009年经济危机的阴霾,2010年的市场终见阳光崭露,全球经济形势的好转给市场带来了新的活力,整个机床行业在低迷过后将具有更加强劲的增长。GF阿奇夏米尔集团从未因此停止不断开拓创新的步伐,不仅逆势推出了全新加工技术的新产品,更是快马加鞭地对重组后的产品线进行了合理的调整和改进,     

带加速度修正的极坐标系α-β滤波器

有时使用极坐标系对跟踪计算很有利。但因匀速目标的位置量不再象直角坐标系中一样是时间的线性函数而带来了复杂。然而这可以通过使用在预报方程中加伪加速度修正因子来近似修正系统动态的方法而解决,代价是增加了系统的噪声。对于α-β滤波器,加入这些修正因子,滤波器的稳态误差性能降低极小,同时又可大大减小偏倚误差。     

软件总体的概念与作用

测控总体技术中包括系统总体技术和分系统(设备)总体技术,分系统总体技术过去一般只包含各种硬设备的总体技术,而没有软设备的总体技术。本文针对目前测控系统计算机软件的发展需要,参照设备总体(硬总体)技术的思路,提出软件总体(软总体)技术的概念,并分析软件总体技术的一般要求,说明软件总体技术在测控总体技术中的作用。     

Astronautics and psychology: recommendations for the psychological training of astronauts

The methods presently applied in the psychological training of astronauts are based on the principle of ensuring maximum performance of astronauts during missions. The shortcomings are obvious since those undergoing training provide nothing but the best ability to cope with Earth problem situations and add simply an experience of space problem situations as they are presently conceived. Earth attitudes and Earth behaviour remain and are simply modified. Through the utilization of interdisciplinary space knowledge a much higher degree of problem anticipation could be achieved and the astronaut be psychologically transformed into a space-being. This would at the same time stimulate interdisciplinary space research. The interdisciplinary space knowledge already available suggests that space requires not only physical and mental adjustments, but a profoundly new relationship with life.     

军用软件可靠性策略研究

在分析影响军用软件可靠性因素的基础上，借鉴能力成熟度模型(CMM)过程规范思想，提出了一套完整的军用软件可靠性解决策略，包括软件可靠性组织过程、软件可靠性管理过程、软件可靠性工程过程和软件可靠性支持过程，并概要描述了各个过程所涉及的技术和实现方法。     

GF阿奇夏米尔众多新品亮相DMC 2010

<正>2010年5月11～15日,GF阿奇夏米尔公司(GF AgieCharmilles)神奇的激光加工新技术在上海新国际博览中心2010年中国国际模具技术和设备展     

GF阿奇夏米尔008新产品

品牌整合后的GF阿奇夏米尔投入了更多的力量来发展放电加工和铣削技术,在EMO2007展览会上推出了一系列新产品.这些新产品将于2008年陆续投放中国市场,为中国的精密加工领域带来新气象,也必将为GF阿奇夏米尔蓬勃发展的中国业务锦上添花.     

可提高生产效率的放电加工单元

始于最初的领先技术放电加工机床出现在60年代末,其主要代表就是电火花机床和线切割机床。这些机床的出现代表着机械加工进入了一个新的领域:用电力来代替刀具对工件进行加工。阿奇夏米尔集团在放电加工领域处