hollow相关论文
在氧化物限制型垂直腔面发射激光器制备中,刻蚀GaAs/AlGaAs时因异质型材料常出现选择性内蚀现象,这会直接影响后续的氧化工艺及电......
以若尔盖泥炭沼泽为研究对象,采用静态箱法,利用静态箱—快速温室气体分析仪,在2014年5～9月的植物生长季,测量CO_2和CH_4含量并计算......
研究表明:在620℃煅烧后,模板除去,TiO2形成。产物主要由TiO2和少量的H2Ti3O7组成。得到的产物的比表面积为252.6m2/g。P-C-I测试......
The initial decomposition of methylamine on Mo(100) surface has been investigated by self-consistent (GGA-PW91) density ......
SnO2 hollow microspheres were fabricated via a hydrothermal synthesis method assisting by the complex surfactant system ......
This paper presents the planar Fiber Bragg Grating (FBG) hydrophone probe sens- ing principle,and theoretically and expe......
In order to overcome the disadvantages of conventional high frequency relativistic klystron amplifiers in power capabili......
We study theoretically the spectral intensity evolutions of the femtosecond Gaussian and parabolic pulses with different......
Understanding bend loss in single-ring hollow-core photonic crystal fibers(PCFs)is becoming of increasing importance as ......
A diode-pumped alkali laser(DPAL) provides the significant promise for high-powered performances. In this paper, a mathe......
Rural development has long been the focus of China’s central and local governments. Since the late 2000 s, rural areas ......
Serving as recycled coarse aggregate,the pretreated rural building waste was added into the concrete hollow bricks in th......
Several reinforcing schemes are illustrated that are based on the loading characteristics of typical country masonry sch......
A simple method was developed to prepare the uniform hematite hollow submicro-spheres with controllable structure and di......
We report a mild template-free hydrothermal route for selective synthesis of SnO2 hollow microspheres and nano-sheets us......
One of the most unique structural characteristics of carbon nanotubes(CNTs) differentiating from other carbon materials ......
Heat transfer coefficients in nucleate boiling on a smooth flat surface were measured for pure fluids of R-134a, propane......
A new interfacial polymerization (IP) procedure is developed in order to synthesize polypiperazine-amide thin-film membr......
Separation of Antitumor Active Plypeptides from Periplaneta Americana by Ultra Filtration Technology
[Objective] The paper was to establish ultrafiltration membrane technology for separation of antitumor active plypeptide......
The hollow flange beam(HFB) is a unique cold-formed steel section developed in Australia for use as a flexural member.It......
Cleaning of hollow-fibre polyvinyl chloride (PVC) membrane with different chemical reagents after ultrafiltration of alg......
This research aimed to study the sound absorption properties of natural fibers and their reinforced composites.Sound abs......
Hollow cylinders are widely used in spacecraft,rockets,weapons,metallurgy,materials,and mechanical manufacturing industr......
Construction of multi-structures based on Cu NWs-supported MOF-derived Co oxides for asymmetric pseu
Cu@MOF core-shell nanowires are synthesized by introducing oxidizable and CTAB-modified metal nanowires as self-engaged ......
Water-assisted injection molding(WAIM), an innovative process to mold plastic parts with hollow sections, is characteriz......
Shrinkage cavity may be detrimental to mechanical performances of casting parts.As a consequence,design engineers often ......
基于表面增强拉曼散射(SERS)的光纤传感器结合了光纤与表面增强拉曼散射效应,具有普通传感器无法比拟的优点。但是,应用普通光纤将......
Jinchuan nickel mine is the largest nickel mine in China. Cut-and-fill mining method with high density cementing materia......
Hollow calcium carbonate microspheres prepared in the presence of polyoxyethylene (20) sorbitan mono
Hollow calcium carbonate ( CaCO3 ) microspheres were prepared in aqueous solution with the presence of polyoxyethylene (......
通过对医生临床病历书写中关于陷凹(窝)的部位进行归纳总结,列出临床常见的“窝”及所在部位.窝就是临床术语中所指的陷凹.小凹陷......
The topic of this investigation deals with experimental and numerical analysis of different configurations of hollow and......
以聚乙烯吡咯烷酮(PVP)溶胶,钛酸四正丁酯和PVP溶胶,银颗粒为前驱体,以共轴静电纺丝法制备了银填充的TiO2中空纳米纤维.将双组分纤......
By use of optical spectrum technology, the spectra of X-ray induced by highly charged 40Arq+ ions interacting with Au su......
目的观察不同直径和不同打击力度的圆柱形木棒对垂直方向打击皮肤所形成的中空性皮下出血形态的相关性。方法采用生物力学击打装置......
在某全新开发的运动型多用途汽车(Sport Utility Vehicle,SUV)车型设计过程中,为降低镂空式尾翼对整车风噪性能的影响,对汽车外部......
针对聚合物制品的可靠性、轻量化和力学性能的结构-功能一体化设计,建立了RBTO-MMWDC连续体结构拓扑优化模型。为便于该设计方法的......
以葡萄糖、TBOT以及HCl为原料,通过C微球模板法在溶剂热处理条件下成功制备出了粒径可控的中空TiO2微球,并对产物进行了表征和性能......
立体光固化成型技术（SLA）以产品尺寸精度高、表面质量优良、能打印出结构复杂模型而广泛用于各个领域。SLA所用材料为液态光敏树脂和......
以C微球为模板,Ce（NO3）3.6H2O为铈源,NH4Ac.2H2O为沉淀剂,通过溶剂热法分别采用一步模板以及两步模板法成功制备出了中空以及中空-核......
以乙酸锌、氨水和海藻酸钠为原料，采用水热法合成了具有分级结构的中空花菜状ZnO．利用SEM、XRD对样品进行了表征，并研究了样品的光致......
同轴式双空心抽油杆加热系统可有效解决高凝油井井筒易结蜡、稠油井产液黏度较高的问题,但考虑油井生产效率、开采成本及综合的经......
本文通过水热法合成了中空Si O-SH2纳米微球,然后直接用其吸附Ni^2＋,从而形成Si O-SH-Ni^2＋复合材料,以此材料为载体,可以将以组氨酸......
结合当前激光光源与光纤元器件发展现状,提出一种差动型谐振式光纤陀螺方案。该方案采用三束窄线宽激光注入空芯光子晶体光纤构成......
纤维素纤维是自然界广泛分布的天然纤维，像法桐球果纤维、木棉纤维、杨花纤维、蒲公英绒纤维，都是纤维素纤维，纤维具有吸油快、吸油量......
目的探讨空心加压螺钉内固定结合股方肌骨瓣移植治疗青壮年股骨颈骨折的临床疗效。方法采用髋关节后外侧切口,切开复位、空心加压......
提出一种针对STL模型镂空的新算法，该算法是用体素表达的思想完成镂空，即采用紧密排列的正六面体(体素)描述STL模型，通过计算将模型表......
通过对长江新村五号楼结构的设计论述,简单介绍板柱剪力墙体系的设计思路,相关方法,以及注意事项,包括其抗震分析过程,节点处理方......
