VXI Plug & Play : 一种组建测试系统的理想规范

介绍了对推动ＶＸＩ技术发展具有重要意义的ＶＸＩＰｌｕｇ＆Ｐｌａｙ系统联盟成立的背景以及ＶＸＩＰｌｕｇ＆Ｐｌａｙ规范的主要内容,制定规范所遵循的原则和要求,对ＶＸＩＰｌｕｇ＆Ｐｌａｙ发展前景做了展望,说明了虚拟仪器软件结构的框架,并初步探讨了组建一个自动测试系统的方法和步骤以及如何利用ＶＸＩＰｌｕｇ＆Ｐｌａｙ设计仪器驱动程序。     

数据融合技术与潜艇指控系统的发展

就潜艇指控系统的现状和发展,综述了数据融合技术在潜艇指控系统中的应用前景。     

深圳星河世纪结构方案优选

高楼结构设计,包含结构方案选定、构件内力计算、杆件和节点构造措施等三 部分内容。工程实践经验表明,高楼结构设计能否做到安全、经济、合理,关键在于选定的结 构方案是否恰当。围绕结构方案优化这一主题,探讨了以深圳星河世纪A栋办公楼为例, 就其有关的安全、经济、合理各方面进行系统的阐述,以供同类建筑在确定结构方案时参考。     

碳化硼涂覆的碳纤维的抗热氧化性研究

用自己合成的裂解能得到碳化硼的聚碳硼烷,对碳纤维进行涂层,并详细测试了涂层碳纤维的抗热氧化性能。     

Modeling and solution for the ship stowage planning problem of coils in the steel industry

We consider a ship stowage planning problem where steel coils with known destination ports are to be loaded onto a ship. The coils are to be stowed on the ship in rows. Due to their heavy weight and cylindrical shape, coils can be stowed in at most two levels. Different from stowage problems in previous studies, in this problem there are no fixed positions on the ship for the coils due to their different sizes. At a destination port, if a coil to be unloaded is not at a top position, those blocking it need to be shuffled. In addition, the stability of ship has to be maintained after unloading at each destination port. The objective for the stowage planning problem is to minimize a combination of ship instability throughout the entire voyage, the shuffles needed for unloading at the destination ports, and the dispersion of coils to be unloaded at the same destination port. We formulate the problem as a novel mixed integer linear programming model. Several valid inequalities are derived to help reducing solution time. A tabu search (TS) algorithm is developed for the problem with the initial solution generated using a construction heuristic. To evaluate the proposed TS algorithm, numerical experiments are carried out on problem instances of three different scales by comparing it with a model‐based decomposition heuristic, the classic TS algorithm, the particle swarm optimization algorithm, and the manual method used in practice. The results show that for small problems, the proposed algorithm can generate optimal solutions. For medium and large practical problems, the proposed algorithm outperforms other methods. © 2015 Wiley Periodicals, Inc. Naval Research Logistics 62: 564–581, 2015     

高陡度非球面磨削亚表面损伤深度规律

具有高陡度非球面特性的光学元件可以明显改善光学系统的空气动力学性能,从而提升和优化系统综合性能。磨削加工方法可以作为此类元件的前期加工工序,而磨削难免会造成零件的亚表面损伤,且在这种高陡度非球面磨削加工中磨削参数是实时变化的,造成整个工件亚表面损伤深度不一致。针对这种情况,建立亚表面损伤预测模型,并结合半球形砂轮磨削的特点,通过理论计算预测非球面磨削亚表面损伤深度分布规律。在此基础上,以热压多晶氟化镁平面为对象进行模拟参数实验,通过磁流变抛斑点法得到各组参数下亚表面损伤深度情况,结果显示损伤深度范围在12.79μm~20.96μm之间,且沿试件半径方向由内向外呈增大趋势,结果与预测模型相吻合。     

SiC光学材料的电弧增强等离子体加工方法

Si C光学材料具有高化学稳定性,其在普通的等离子体加工中难以获得较高的加工效率。在等离子体加工实验中,发现提高等离子体的自身射频电压可增强等离子体与Si C材料之间的电弧放电作用,而借助电弧的增强作用可提高Si C材料的加工效率,因此提出电弧增强等离子体加工方法。为研究电弧的形成原理,使用自制的探针分别测量了普通电感耦合等离子体和电弧增强等离子体的电压。分别使用传统方法和电弧增强方法对S-Si C进行直线扫描加工实验,证明了电弧增强等离子体加工方法具有更高的加工效率。     

The Production and Deposition of the Guisborough Helmet

In September 1878 the British Museum received a donation of a folded metal plate which had been embossed and gilded. Restoration of the object revealed that the folded plate was in fact the outer casing of a Roman copper alloy cavalry sports type helmet which dates to the late second or third century AD. The story of what became known as the Guisborough helmet began 14 years earlier in what was then the North Riding of Yorkshire when workers employed by the Cleveland Railway Company discovered a ‘very curious plate of metal’ during road construction. It appears that the helmet was deliberately prepared for deposition and buried at a depth of c30 cm close to a stream. Examination by the authors suggests that this was a high value item that had been repaired many times. Experimental evidence suggests that the decoration alone required approximately 16 h to fashion.     

COSMIC 掩星反演的水汽廓线质量分析

利用2006—2012年北半球冬季低纬度地区(30°S~30°N)无线电探空站数据及全球大气成分和气候监测再分析数据对1000 h Pa~200 h Pa高度层的气象、电离层与气候星座观测系统全球定位系统掩星反演的比湿廓线进行了精度和可靠性验证。结果表明,水汽对气象、电离层与气候星座观测系统掩星反演影响较大,尤其在中、低对流层及热带地区等水汽含量比较大的地区,且气象、电离层与气候星座观测系统掩星数据在850 hpa以下可能并不太适用于评估其他数据。     

From Nationalism to Factionalism: Faultlines in the Naga Insurgency

Do ceasefires or peace talks create fragmentation in the insurgent groups? Rather than proposing claims that can offer predictions about armed groups behaviour under ceasefires or peace processes, the analysts tend to focus largely on the dynamics between state and non-state actor. The experts pay little attention to overtime changes in social and local political context which might contribute to propelling a rebel group towards fragmentation and factionalism. The present study intends to fill this gap by exploring the shifting role of public opinion and ethnic support for the peace talks to ascertain whether it can increase the likelihood of factionalism in rebel groups or not. This article applies this approach to the case of Naga National Movement (1947–2015) in India, and finds that the proposed variable appears to have increased the frequency of factionalism in the movement.