摘要：An efficient LED projector is designed for the LED flat lamp without light guide plate(LGP),in order to get high-efficiency lighting capablility and low cost of LED flat *** employing refraction and total reflection,uniform intensity distribution of the emergent light and high-efficiency lighting capablility are *** simulation results show that the output efficiency and intensity distribution on LED flat lamp panel depend on the distance between projector and output panel,the rotation angle of the projector and the gap between projector and *** performs well in both lighting efficiency and uniformity,while a distance of 5 mm,a rotation angle of 2°and a gap of 1.2mm are used with the panel size of 240 mm×360 mm in the LED flat lamp without *** 96.6%of optical uniformity is achieved.

摘要：瞄准：在老鼠男性检验不可分的膜蛋白质 2b (Itm2b ) 的表示和规定繁殖纸巾在性成熟期间并且在不同治疗由下面在 situ 杂交。方法：睾丸， epididymis，和管推迟 ens 在天 1-70 上被收集在性成熟期间检验 Itm2b 表示。为了推进，检验 Itm2b 的规定，成年老鼠经历了外科的阉割和 cryptorchidism。乙烯暗淡乙烷 sulfonate 和 busulfan 治疗被执行在 Leydig 房间和细菌房间的破坏以后测试 Itm2b 的规定。结果：在睾丸， Itm2b 表示中等在天 1-10 上在生精的绳索的广告钠区域被检测，并且在天在 spermatogonia 在底层检测了 20 和 30。Itm2b 水平显著地从到白天 70 的白天 20 在 Leydig 房间被增加。在 epididymis 和管推迟 ens， Itm2b 从出生不满一月的婴儿被检测到逐渐地根据性成熟增加的成年人，和信号。Itm2b 表示是显著地击倒在 epididymis 和管调整了推迟阉割的老鼠的 ens，并且当阉割的老鼠与睾丸激素被对待时，强烈刺激了。Cryptorchidism 在睾丸和头 epididymis 导致了 Itm2b 表示的重要衰落。在 epididymis 和管的 Itm2b 表示推迟在 Leydig 房间被乙烯破坏以后， ens 显著地被减少暗淡乙烷 sulfonate。Busulfan 处理没在 epididymis 或管在 Itm2b 表示生产明显的变化推迟 ens。结论：我们的数据建议那个 Itm2b 表达式起来在老鼠男性复制由睾丸激素和力量玩调整了一个角色。

摘要：A web-based fashion design system-FashDesn was developed for non-professionals to make their own style-based design by choosing and combining fashion parts. We use genetic algorithm to find the optimal satisfied style, while the fitness function of GA is approached by artificial neural network. The users’ style intention can be reached through the learning process of the artificial neural network. The system architecture and some realization details of the system are given in the paper. An output contrast for elegant style women’s before and after user’s interaction is used to illustrate its usefulness in the end.

摘要：Optical models directly effect the irradiance distribution of observed surface. Traditionally, approximate Lambertian models are widely used in designing the light-emitting diodes (LED) arrays in spite of their errors compared with the experimental data. But now a novel LED optical model for uniform illumination system has been proposed, in which the curvefitting technique is used to reduce the inherited errors and modify those previous models. The points from the curve of the LED light intensity are adopted, and a spline curve is designed for fitting, which obtains the revised mode. To verify its feasibility, we apply the new model in a 4×4 array design. The results show that compared with the approximate Lambertian, the light intensity distribution produced by the fitting model is more uniform and intense, as is expected.

摘要：In this paper, numerical analysis of GaSb （Eg = 0.72 eV）/Gao.84Ino.16Aso.14Sbo.86 （Eg = 0.53 eV） tandem thermopho- tovoltaic （TPV） cells is carried out by using Silvaco/Atlas software. In the tandem cells, a GaSb p-n homojunction is used for the top cell and a GalnAsSb p-n homojunction for the bottom cell. A heavily doped GaSb tunnel junction connects the two sub-cells together. The simulations are carried out at a radiator temperature of 2000 K and a cell temperature of 300 K. The radiation photons are injected from the top of the tandem cells. Key properties of the single- and dual-junction TPV cells, including I-V characteristic, maximum output power （Pmax）, open-circuit voltage （Voc）, short-circuit current （/~sc）, etc. are presented. The effects of the sub-cell thickness and carrier concentration on the key properties of tandem cells are investigated. A comparison of the dual-TPV cells with GaSb and GalnAsSb single junction cells shows that the Pmax of tandem cells is almost twice as great as that of the single-junction cells.

摘要：Garment online shopping has been accepted by more and more consumers in recent years. In online shopping, a buyer only chooses the garment size judged by his own experience without trying-on, so the selected garment may not be the fittest one for the buyer due to the variety of body's figures. Thus, we propose a method of optimal selection of garment sizes for online shopping based on Analytic Hierarchy Process (AHP). The hierarchical structure model for optimal selection of garment sizes is structured and the fittest garment for a buyer is found by calculating the matching degrees between individual's measurements and the corresponding key-part values of ready-to-wear clothing sizes. In order to demonstrate its feasibility, we provide an example of selecting the fittest sizes of men's bottom. The result shows that the proposed method is useful in online clothing sales application.

摘要：Metal corrosion causes billions of dollars of economic losses *** a smart and new energy-harvesting device,triboelectric nanogenerators(TENGs)can convert almost all mechanical energy into electricity,which leads to great prospects in metal corrosion prevention and cathodic *** this work,flexible TENGs were designed to use the energy harvested by flexible polydimethylsiloxane(PDMS)films with ZrB_(2)nanoparticles and effectively improve the dielectric constant by incorporating ZrB_(2).The open-circuit voltage and short-circuit current were 264 V and 22.9μA,respectively,and the power density of the TENGs reached 6 W·m^(-2).Furthermore,a selfpowered anti-corrosion system was designed by the rectifier circuit integrated with TENGs,and the open-circuit potential(OCP)and Tafel curves showed that the system had an excellent anti-corrosion effect on carbon ***,the system has broad application prospects in fields such as metal cultural relics,ocean engineering,and industry.

摘要：快速消除感染和促进骨再生是骨髓炎临床治疗的两个关键环节.当前迫切需要开发高效的生物活性声敏剂用于声动力治疗(SDT).在此,我们设计了一种二维Nb_(2)C纳米片修饰的卟啉基金属有机框架纳米平台(HNTM/Nb_(2)C)用于在超声辐照下同时消除感染和加速骨再生.通过在HNTM和Nb_(2)C纳米片之间构建肖特基结,实现了超声辐照下快速的电荷转移并抑制电子-空穴对的重组,从而产生丰富的活性氧.这种新型的声敏剂可以加速干细胞向成骨细胞的分化.RNA测序表明,该HNTM/Nb_(2)C纳米平台通过阳离子释放及超声响应电流引起的ATP合成耦合的电子传递诱导干细胞分化.此外,KEGG通路富集分析表明,Nb离子可能通过激活Wnt信号通路进一步促进成骨.我们的研究为骨髓炎的高效SDT提供了新的策略,该策略通过声响应电流联合离子疗法,实现了感染的消除同时促进了骨再生.

摘要：The H_∞ performance analysis and controller design for linear networked control systems(NCSs) are *** NCSs are considered a linear continuous system with time-varying interval input delay by assuming that the sensor is time-driven and the logic Zero-order-holder(ZOH) and controller are *** on this model,the delay interval is divided into two equal subintervals for H_∞ performance *** improved H_∞ stabilization condition is obtained in linear matrix inequalities(LMIs) framework by adequately considering the information about the bounds of the input delay to construct novel Lyapunov–Krasovskii functionals(LKFs).For the purpose of reducing the conservatism of the proposed results,the bounds of the LKFs differential cross terms are properly estimated without introducing any slack matrix ***,the H_∞ controller is reasonably designed to guarantee the robust asymptotic stability for the linear NCSs with an H_∞ performance level γ.Numerical simulation examples are included to validate the reduced conservatism and effectiveness of our proposed method.

摘要：剪切增稠型聚硼硅氧烷(PBS)通常以“silly putty”,“bouncing putty”或“solid-liquid”被熟知.因其独特的抗冲击性能,PBS广泛应用于防护装甲、运动器材、玩具等领域.然而,自第二次世界大战PBS被发明后,PBS材料的更新升级较少.本论文中,我们通过设计联硼/氧配位键制备了一类新型剪切增稠材料——聚联硼硅氧烷(PDBS).结果表明,与单硼/氧配位键相比,联硼/氧配位键具有更多的配位结构和更高的键能,导致PDBS具有更类固体性的剪切增稠行为.因此,PDBS具有比PBS更优异的抗冲击性能与防护功能,为新一代智能装备、阻尼器和传感器的开发提供了一类高性能防护材料.