摘要：介绍在***平台下基于UART的串行通信手持设备的编程方法,设计出RS232抄表、红外抄表、射频抄表等多种抄表模式,并对串口PDD层驱动程序进行移植和修改,同时为系统注册表添加串口驱动。实验结果证明了多种抄表模式的有效性。

摘要：某住宅小区的某幢号住宅楼基础，设计采用C60、400mm薄壁PHC管桩293根，桩长24m，持力层为粘土层，桩全截面进入持力层大于3m；桩分为10、10、4m3段，接桩采用焊接；单桩设计承载力标准值为550kN。打桩完成后，桩顶位于自然地面以下约2.5m。土方开挖范围内的土质分层情况为：杂填土；粉质粘土，大多为软塑；淤泥质粉质粘土，高压缩性。

摘要：In order to study the transmission efficiency of engine and optimize the structure of driving wheel,the rotational speed storage test device of driving wheel in tracked vehicle based on magnetoelectric sensor was *** device consisted of a mounting bracket,a sensor and a *** mounting bracket was installed in vehicle body after fixing the tester and sensor to mounting bracket beside the driving *** the storage test instrument,the wireless trigger technology was applied to synchronously record and stored the rotational speed data of the driving wheel in tracked *** the experiment was finished,the data was read out through the upper *** valid data and satisfactory results were obtained through both simulated and actual vehicle tests.

摘要：为更好地处理多流程协同图档操作中存在的问题:复杂的图档文件关系、图档的协同操作及冲突,提出了协同图档流程模型,定义了图档文件集、文件关系和协同图档操作,并通过协同图档文件操作规则和协同图档流程处理来描述协同图档流程管理模式,给出了计算文件操作冲突集的方法,并提供了冲突解决规则及算法.结果表明,协同图档流程模型能很好地解决了多流程下对复杂关系图档集合的协同操作,能充分发挥三维CAD协同设计能力.

摘要：介绍了红外光电立靶射击密集度的计算方法,设计了一种高效率的靶场测试软件。应用结果表明,该软件能够实时精确测量弹丸射击密集度,可提供多种射击密集度的数据。

摘要：在轨服务航天器(On-orbit Servicing Spacecraft-OSS)具有重要的军事和民用价值。分析了OSS的导航任务,给出了导航系统总体方案并设计了导航工作模式。构建了OSS导航仿真系统的总体框架,分析了OSS导航仿真系统组成及仿真支撑环境,基于maTLAB/RTW仿真平台开发了OSS导航数字仿真软件。对数据时间同步技术、导航模式切换技术、推力分配算法等关键技术进行了分析。

摘要：To design a promising Al−Si filler alloy with a relatively low melting-point,good strength and plasticity for the Cu/Al joint,the Cu,Ni,Zr and Er elements were innovatively added to modify the traditional Al−Si eutectic *** microstructure and mechanical properties of filler alloys and Cu/Al joints were *** result indicated that the Al−Si−Ni−Cu filler alloys mainly consisted of Al(s,s),Al_(2)(Cu,Ni)and Si(s,s).The Al−10Si−2Ni−6Cu filler alloy exhibited relatively low solidus(521℃)and liquidus(577℃)temperature,good tensile strength(305.8 MPa)and fracture elongation(8.5%).The corresponding Cu/Al joint brazed using Al−10Si−2Ni−6Cu filler was mainly composed of Al_(8)(Mn,Fe)_(2)Si,Al_(2)(Cu,Ni)3,Al(Cu,Ni),Al_(2)(Cu,Ni)and Al(s,s),yielding a shear strength of(90.3±10.7)*** joint strength was further improved to(94.6±2.5)MPa when the joint was brazed using the Al−10Si−2Ni−6Cu−0.2Er−0.2Zr filler ***,the(Cu,Ni,Zr,Er)-modified Al−Si filler alloy was suitable for obtaining high-quality Cu/Al brazed joints.

摘要：HI-13串列加速器升级工程在线同位素分离器(BRISOL)需对同质异位素进行分辨,谱仪设计质量分辨率为20 000,是很高的技术指标,对离子源、高压、分析磁铁、四极透镜等设备均有很大的挑战。本文详细介绍了BRISOL谱仪关键技术及其测试结果。能散对谱仪的质量分辨率影响较大,BRISOL谱仪设计采用异能大小铁结构消除能量色散。离子源采用表面离子源,并采用三电极引出系统,中间电极电压可调用以优化束流品质,优化后离子束RMS发射度好于3.8πmm·mrad。分析磁铁采用表面线圈进行磁场垫补,垫补后积分场均匀性好于3.5×10^(-5)。为修正像差,大分析磁铁安装了β线圈和γ线圈,同时,在分析磁铁前后共设置了4台电六极透镜。

摘要：沥青路面就地热再生时,级配的变异性会引起混合料出现离析、压实困难、层间连接不良等许多问题,这直接影响到再生后沥青路面的路用性能。从就地热再生材料级配控制出发,对原路面材料级配及沥青老化程度进行测试,并依据测试结果对沥青路面就地热再生材料级配进行优化设计,在此基础上进行了再生混合料水稳定性、高温稳定性、低温抗开裂性等性能试验。试验结果表明通过对就地热再生混合料各级配组成材料的严格控制与优化设计,可以获得各项技术指标符合要求的就地热再生混合料,能够恢复沥青路面原有的路用性能。

摘要：Synergistically regulating carrier and phonon transport on the nanoscale is extremely difficult for all thermoelectric(TE)materials without cage *** BaFe_(12)O_(19)/Bi_(2)Te_(2.5)Se_(0.5)thermoelectromagnetic nanocomposites are designed and synthesized as a benchmarking example to simultaneously tailor the transport properties on the nanoscale.A magneto-trapped carrier effect induced by BaFe_(12)O_(19)hard-magnetic nanoparticles(NPs)is discovered,which can lower the carrier concentration of n-type Bi_(2)Te_(2.5)Se_(0.5)matrix by 16%,and increase the Seebeck coefficient by 16%.Meanwhile,BaFe_(12)O_(19)NPs provide phonon scattering centers and reduce the thermal conductivity by 12%.As a result,the ZT value of the nanocomposites is enhanced by more than 25%in the range of 300-450 K,and the cooling temperature difference increases by 65%near room *** work greatly broadens the commercial application potential of ntype Bi_(2)Te_(2.5)Se_(0.5),and demonstrates magneto-trapped carrier effect as a universal strategy to enhance the electro-thermal conversion performance of TE materials with high carrier concentration.