摘要：运输性是装备的固有属性和设计属性,它对装备机动性和全寿命费用具有重要影响;装备运输性涉及装备研制、运输条件及运输环境等多方面的因素.提高装备运输性的时机是在研制阶段,应使运输性要求贯穿于装备研制的全过程;基于系统工程的理论和方法,提出了运输性的研究内容及方向.

摘要：Penetrating head injury is rare,and thus management of such injuries is *** diagnosis and intraoperative comprehensive exploration are necessary considering the complexity and severity of the ***,because of the lack of microsurgical techniques in local hospitals,the possible retained foreign bodies and other postoperative complications such as cerebrospinal fluid(CSF)leak usually require a rational design for a secondary operation to deal *** present a case of a 15-year-old boy who was stabbed with a bamboo stick in his left *** chopsticks passed through the orbit roof and penetrated the skull *** subsequent days,the patient sustained CSF leak and intracranial infection after an unsatisfied primary treatment in the local hospital and had to request a secondary operation in our *** tomography including plain scan,three dimension recon-struction and computed tomographic angiography are used to determine the course and extent of head injury.A frontal craniotomy was *** pieces of stick were found residual and removed with the comminuted orbit bone fragments.A pedicled temporalis muscle fascia graft was applied to repair the frontier skull base and a free temporalis muscle flap to seal the frontal sinus *** broad-spectrum antibiotics of vancomycin and meropenem were administrated for persistent fever after *** external drainage system continued for 12 days,and was removed 10 days after tem-perature returned to *** Glasgow coma scale score was improved to 15 at postoperative day 7 and the patient was discharged at day 22 *** believe that appropriate preoperative surgical plan and thorough surgical exploration by microsurgery is essential for attaining a favorable outcome,especially in secondary *** postoperative recovery depends on successfully management before and after operation for possible complications as well.

摘要：为研究体型较小的蛙类的鸣声特征,2012年7～8月,采用录音机和指向性话筒,在野外录制51只雄性圆蟾舌蛙（Phrynoglossus martensii）鸣声并对应测量了录音个体的体重、体长及头宽等体征数据。雄性圆蟾舌蛙的体重为（1.26±0.55）g,体长为（21.04±2.57）mm,头宽为（6.76±0.75）mm。该种蛙可发出广告鸣声和争斗鸣声。广告鸣声为单音节鸣叫,主频（3 782.25±167.78）Hz,3 100～4 349 Hz;基频（1 519.69±70.60）Hz,1 057～1 765 Hz。广告鸣声主频和基频均与体重、体长、头宽呈显著负相关,而音节间隔与体重和头宽呈正相关（相关性分析）。争斗鸣声主频（3 752.64±174.47）Hz,（3 304～4 081）Hz;基频（1 674.88±79.88）Hz,1 367～1 870 Hz。与广告鸣声相比,争斗鸣声的基频显著增高（t=﹣5.374,df=56,P〈0.001）,音节时长和音节间隔显著降低（P〈0.05）,而主频在两种鸣声类型中无显著差异（t=0.436,df=56,P=0.665）（独立样本T检验）。结果表明,作为体型较小的蛙类,体型影响了圆蟾舌蛙的鸣声结构和类型。

摘要：本文是基于CMAC神经网络分析和设计非线性过程控制系统的第一部分,分析了Chiang&Lin提出的基于广义基函数的CMAC学习算法收敛条件的局限性,提出了一种改进算法,并证明改进算法是收敛的,应用该算法的CMAC用于过程输出的预测器。

摘要：对于调频连续波无合作目标测距来说,回波接收系统是其光学系统中重要的组成部分,其接收特性也影响着系统的测距精度。为对其进行设计与分析,利用光学设计软件对以卡塞格林望远镜与多模光纤为主体的接收系统进行了建模,通过像差与光接收效率的分析与优化确定系统选用的卡塞格林望远镜的参数。建立待测物后向散射的高斯散射模型,并搭建完整的接收光路进行实验,定量分析了不同情况下系统的接收功率,并研究了接收效率、聚焦位置等与待测物的距离和表面散射之间的规律。研究结果表明,对于相同的加工方式的样块,系统接收功率与粗糙度、待测物距离成负相关规律,系统聚焦距离与粗糙度、待测物距离呈正相关规律。

摘要：消失的美术馆——岳敏君馆一方面，是青城山溪水绵延,薄雾缭绕的自然美景。一方面，是极具个人艺术态度和当代性的私人美术馆。追溯远古与展望未来,两个坐标相反的命题在青城山交汇碰撞。

摘要：本文介绍一种基于PCI总线的高速数据采集卡系统的设计方法,讨论了设计高速数据采集系统的关键技术,给出了系统整体设计方案和PCI接口通信方式,完成了采集卡设备驱动程序及其应用程序的实现。

摘要：清除井筒积液是维持气井正常生产的重要措施。目前柱塞气举井的生产更多依赖人工控制,井下监测还在采用传统的电缆测井工艺,生产效率不高。为此,提出一种分体式柱塞工具设计方案及利用柱塞进行仪器投捞的测井工艺方法。该技术可根据现场需求,利用柱塞的往复运动将测量仪器安全的放置于井底,在测量任务完成后将存储数据的仪器携带至地面,在井口通过近场无线通信的方式实现与地面采集设备之间的数据自动交换。新型柱塞工具的主要组成部件包括柱塞本体、投送总成、打捞总成和仪器工作筒总成。地面配套设备的主要部件包括井口通信天线和读写器。基于投捞一体式柱塞工具的排液采气工艺可完成井筒生产参数的在线测量任务,包括常规温度压力测量、井筒流体采样、压力恢复测试等。目前,该系统已完成总体方案设计和工程设计,正在开展样机试制和地面试验。该工具将为提高低压低产气井的单井产量和实现稳产提供一种兼具排液采气和动态监测功能的技术手段,对气田生产逐步实现自动化管理具有重要意义。

摘要：针对查询驱动的移动Sink无线传感器网络,基于IEEE 802.15.4标准,提出了一个联合簇树组网和移动路由的跨层协议设计方案。以能耗、网络连通度、负载均衡和子树深度等指标为评价因子,在多目标优化模型下定义了一个拓扑综合评价函数,构建稳定的最优簇树网络结构;改进了IEEE 802.15.4 MAC中基于信标帧调度的分布式睡眠同步算法,维护较低占空比下的网络同步与拓扑修正;利用拓扑形成过程中依"最早信标帧"、"最好链路"、"最小层次"3种准则确立的父子关系,建立移动Sink与N-Hop范围内节点的双向路由路径。最终将上述MAC层的拓扑控制方案与网络层的查询路由方法完整实现于TinyOS协议栈中。实验结果表明,评价函数能够有效地反映组网质量,N-Hop后验式路由结合睡眠同步机制,在"最好链路"拓扑下表现出较高的能量效率。

摘要：In order to improve the detection accuracy of Doppler asymmetric spatial heterodyne(DASH)interferometer in harsh temperatures,an opto-mechanical-thermal integration analysis is carried ***,the correlation between the interference phase and temperature is established according to the working principle and the phase algorithm of the ***,the optical mechanical thermal analysis model and thermal deformation data acquisition model are *** deformation data of the interference module and the imaging optical system at different temperatures are given by temperature load simulation analysis,and the phase error caused by thermal deformation is obtained by ***,based on the wind speed error caused by thermal deformation of each component,a reasonable temperature control scheme is *** results show that the interference module occupies the main cause,the temperature must be controlled within(20±0.05)℃,and the temperature control should be carried out for the temperature sensitive parts,and the wind speed error caused by the part is 3.8 m/*** thermal drift between the magnification of the imaging optical system and the thermal drift of the relative position between the imaging optical system and the detector should occupy the secondary cause,which should be controlled within(20±2)℃,and the wind speed error caused by the part is 3.05 m/*** summary,the wind measurement error caused by interference module,imaging optical system,and the relative position between the imaging optical system and the detector can be controlled within 6.85 m/*** analysis and temperature control schemes presented in this paper can provide theoretical basis for DASH interferometer engineering applications.