Results 11 to 20 of about 802 (144)
Study of A Microdevice for Micro/Nano Particles Ultrasonic Separation [PDF]
, 2009 在对生物微粒进行分析或检测时，其第一步就是将生物微粒从其所处介质中分离出来，因此一种高效、无污染的分离技术是十分关键的。与其它微纳米颗粒的分离技术相比，超声分离技术具备操作连续、可保证微粒的活性以利于后步处理，并且可分离非电性及非磁性粒子等优点，因此适用于生物微粒的分离或操纵。随着MEMS技术的迅速发展，采用微制造技术制造的MEMS器件在体积、重量、成本等方面，都具有十分明显的优势，这为超声分离器件的设计和制造带来了全新的思路。基于MEMS技术的超声分离装置可实现器件的微型化及芯片化 ...
杨慧
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Numerical study of heat injection CO2 to increase CH4 production based on gas-water two-phase flow [PDF]
The technology of CO2-enhanced coalbed methane (CO2-ECBM) can reduce greenhouse gas emissions, and has the function of clean energy production and environmental protection.
Kang LIU +5 more
core +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Engineering the semiconductor/dielectric interface is crucial for advancing two‐dimensional (2D) nanoelectronics, where device performance is predominantly governed by interfacial defects and dielectric coupling. Optoelectronic doping based on carrier trapping at the h‐BN/SiO2 interface has enabled non‐volatile and reversible carrier ...
Zhe Zhang +6 more
wiley +1 more source
Structural design and performance analysis on cantilever beam micromachined tunneling gyroscope [PDF]
, 2005 介绍了电子隧道效应在微机械陀螺仪中的应用,根据电子隧道效应的特点与要求提出了隧道陀螺仪的结构方案,利用ANSYS进行系统模态分析、静电-结构的耦合场分析及系统的性能分析。讨论了系统的机械灵敏度及隧道电流与隧道电极间隙的关系。Application of electron tunneling effect in micromachined gyroscope is described.According to the prerequisite and characteristic of tunneling
孙道恒, 李文望
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Fermi Surface Structure Revealed by Quantum Oscillations in Half‐Heusler Semimetal LuAuSn
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT The Fermi surface structure in the half‐Heusler semimetallic compound LuAuSn was systematically investigated using quantum oscillation studies of high‐quality single crystals and first‐principles calculations. Clear bulk quantum oscillation signals were observed for multiple complementary physical properties, including magnetization, Hall ...
Yue Lu +12 more
wiley +1 more source
Design and manufacture of array sphygmology sensor [PDF]
, 2005 提出了一种用微机电系统(MEMS)技术应变传感器阵列探头客观细腻地采集人体脉象的新思路。探头采用直接腐蚀出电阻条的技术,具有工艺简单、成本低廉、电阻变化率高、工作可靠等优点。对设计进行了理论计算和优化,并用有限元分析软件ANSYS8.0进行了结构和电耦合场仿真,模拟悬臂梁端点位移对电阻变化的影响。当悬臂梁末端位移变化为50μm时,电阻变化率模拟结果为18.84%,与理论计算值19.67%符合得很好。For acquiring more comprehensive information of pulse
刘继伟, 高文秀, 齐天华
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Review of Policy Research, Volume 43, Issue 2, March 2026.ABSTRACT This study adapts the Multiple Streams Framework (MSF) to explore why COVID‐19 vaccine mandates were applied at sectoral and subnational levels in Vietnam while the central government maintained that vaccination was voluntary. Document analysis reveals that these mandates arose from the effective coupling of the three streams—problem, policy ...
Hang Duong, Katie Attwell
wiley +1 more source
Study on Basic Rules of Noncontact Rod-induced Electrospinning [PDF]
, 2017 纳米纤维由于其超高的比表面积和卓越的力学、电学和化学特性在传感、生物医药、能源等领域有着广泛的应用前景和强劲的市场需求。静电纺丝是目前批量化制备纳米纤维的最重要方法之一，针对现有电纺方法存在的如多针尖多管孔电纺技术射流间相互影响，针尖管孔易堵塞；依靠特殊形状电极以及液面扰动的自由液面电纺则存在电极钝化和纤维形貌差异大等缺点，论文提出非接触式棒诱导电纺方法：采用接地诱导棒在聚合物液面近空间移动，强电场作用下靠近诱导棒的液面上出现大量微细射流，诱导棒移开后射流经过拉伸、鞭动和挥发 ...
肖志明
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT This study developed a FeSiAl@LMPGP composite material to address the demand for low‐frequency electromagnetic absorption. Through controllable heat treatment, FeSiAl particles and PbO nanoparticles self‐assembled into a high‐density Mott–Schottky heterointerface structure, which exhibited a significant built‐in electric field (BIEF) effect ...
Yuqi Wang +5 more
wiley +1 more source
, 2012 基于渗流场与应力场耦合机理,对柿竹园野鸡尾尾矿坝进行稳定性研究。研究渗流-应力的耦合效应,提出了渗流-应力耦合以及渗流体积力计算的实施方案;建立二维的有限元渗流-应力耦合计算模型,分析了考虑耦合效应时的尾矿坝渗流场、位移场、应力场;最终分析了不同耦合关系对于渗流量、位移场、等效渗透集中力以及应力场的影响。研究结果表明:当前水力条件下,尾矿坝稳定性良好;尾矿坝主要受水平渗透力作用,初期坝坝顶、坝脚以及坝底等处应力集中;尾矿坝的渗流-应力作用不容忽视,不同的耦合关系对于x方向位移、渗透力的预测影响巨大 ...
周舒威 +3 more
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