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Particles Separation using Micromachined Ultrasonic Device

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Particles Separation using Micromachined Ultrasonic Device

MoS2 synaptic transistor with one-step manufacture

第二届全国压电和声波理论及器件技术研讨会

作者： Hui Yang,Hongming sun,yi Zhang,Hang guo (Pen-Tung Sah MEMS Research Center,Xiamen University,P.R.China)

In our During the past 10 years,there is a fast growing demand to develop micro-instruments or Lab-on-Chips that can fast identify,test,and analyze bio-molecules,cells,and other *** the first step for identification and test,particles should be *** present,two types of methods, contact and non-contact methods,can be used for particles *** they can operate continuously and preserve the particles of interest in suspension for subsequent use without fouling the separation equipment,non-contact methods are more suitable for particle *** with other non-contact methods,such as electrophoretic or magnetic method,ultrasonic method only requires that density or compressibility of the particles is different from that of the medium surrounding the particles,it is therefore ultrasonic separation technique can also be used to separate those which are not charged particles or nonmagnetic ***,many research groups are studying using ultrasonic technique,combined with MEMS(MicroElectroMechanical Systems) technology,to separate or manipulate the *** this paper,we propose and investigate a new ultrasonic microdevice to separate *** first start from the fundamental of ultrasonics to obtain the radiation force on microparticles for *** force on a compressible particle in a standing wave field can be derived as proportional to the radius of the particle,wave number,ultrasound energy density,and density-compressibility constant F(λ,σ).It is noted that if F(λ,σ) is positive the acoustic radiation force will make particles to be concentrated at the nodes,and if F(λ,σ) is negative the acoustic radiation force will make particles to be concentrated at the ***,the radiation force due to the standing wave field can be utilized to separate microparticles within the *** can derive the relationships between the radiation force and particle *** some biological par

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Science China(Information Sciences) 2025年第1期68卷 357-365页

作者： yihao guo Yang WANG Wenjie DENG yi WU Jingtao LI Kexin LI Yuehui ZHAO Songlin YU Xiaoting WANG Yongzhe ZHANG Hui YAN Key Laboratory of Optoelectronics Technology of Education Ministry of China Faculty of Information TechnologyBeijing University of Technology Key Laboratory of Advanced Functional Materials Ministry of Education Faculty of Materials and ManufacturingBeijing University of Technology The 11th Research Institute of Electronics Technology Group Corporation

The synaptic transistor,which is a neuromorphic device with brain-like functions,has garnered significant attention due to characteristics such as low energy consumption,high integration,multiple functions,and high computational ***,the current synaptic transistor possesses a complicated structure and involves complex manufacturing steps,which is not conducive to low-cost,large-scale bionic ***,we introduce a simple MoS2synaptic transistor exhibiting robust synaptic *** transistor utilizes magnetron sputtering manufacture to combine the process of device metal electrode deposition and the introduction of defect states,which helps streamline the manufacturing process into a single *** long-term potentiation and long-term depression in photoelectric coordination are initially ***,biological functions,such as double pulse facilitation and the transformation behavior of short-term memory to long-term memory,are thoroughly evaluated,along with learning-forgetting-relearning ***,the device exhibits robust synaptic plasticity until incident light angles down to 30° to imitate the multi-to-one axon-cellular ***,a classical simulation of Pavlov's dog conditioned reflex is demonstrated along with the multiview extraction *** experimental results demonstrate a promising synaptic transistor with a simple structure,manufacturing technique,and excellent *** further indicates the potential for large-scale integration of bionic neuromorphic systems.

关键词： process optimization artificial synaptic device one-stepmanufacture synaptic plasticity bionic simulation

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Low‑Temperature Fabrication of Stable Black‑Phase CsPbI_(3)Perovskite Flexible Photodetectors Toward Wearable Health Monitoring

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Nano-Micro Letters 2025年第3期17卷 232-245页

作者： yingjie Zhao yicheng sun Chaoxin Pei Xing yin Xinyi Li yi Hao Mengru Zhang Meng Yuan Jinglin Zhou Yu Chen Yanlin Song College of Chemistry and Pingyuan Laboratory Zhengzhou UniversityZhengzhou 450001People’s Republic of China Key Laboratory of Green Printing Institute of ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Key Laboratory of Bio‑Inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190People’s Republic of China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049People’s Republic of China

Flexible wearable optoelectronic devices fabricated fromorganic–inorganic hybrid perovskites significantly accelerate the developmentof portable energy,biomedicine,and sensing fields,but their poor thermal stabilityhinders further ***,all-inorganic perovskites possessexcellent thermal stability,but black-phase all-inorganic perovskite filmusually requires high-temperature annealing steps,which increases energy consumptionand is not conducive to the fabrication of flexible wearable *** this work,an unprecedented low-temperature fabrication of stable blackphaseCsPbI3perovskite films is demonstrated by the in situ hydrolysis reactionof diphenylphosphinic chloride *** released diphenyl phosphateand chloride ions during the hydrolysis reaction significantly lower the phasetransition temperature and effectively passivate the defects in the perovskitefilms,yielding high-performance photodetectors with a responsivity of 42.1 AW−1 and a detectivity of 1.3×10^(14)***,high-fidelity imageand photoplethysmography sensors are demonstrated based on the fabricated flexible wearable *** work provides a newperspective for the low-temperature fabrication of large-area all-inorganic perovskite flexible optoelectronic devices.

关键词： In situ hydrolyzation Low-temperature processing All-inorganic perovskite Flexible photodetectors Health monitoring

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沙漠公路施工的控制与管理

筑路机械与施工机械化 2018年第10期35卷 108-111,117页

作者：孙贻国新疆交通科学研究院新疆乌鲁木齐830000

为了在流动性沙漠地区开展高速公路建设研究,通过对于田县达里雅布依乡沙漠公路风积沙路基施工质量控制的认知与体会,探讨了以风积沙为主要填筑材料的公路路基施工和施工质量问题,着重介绍风积沙路基填筑的特殊施工技术、土工布隔沙及... 详细信息

为了在流动性沙漠地区开展高速公路建设研究,通过对于田县达里雅布依乡沙漠公路风积沙路基施工质量控制的认知与体会,探讨了以风积沙为主要填筑材料的公路路基施工和施工质量问题,着重介绍风积沙路基填筑的特殊施工技术、土工布隔沙及天然砂砾底基层施工技术和关键工艺控制,同时对修筑沙漠公路过程中存在的问题及控制方法进行了分析。实践证明,风积沙作为路基填料是可行的。

关键词：沙漠公路风积沙填筑底基层施工质量控制与管理

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水泥稳定碎石基层产生收缩裂缝的原因及对策

筑路机械与施工机械化 2019年第7期36卷 83-86页

作者：孙国一中交一公局集团有限公司

针对路面水泥稳定碎石基层在施工过程中经常出现横向收缩裂缝的问题,以国道107官渡黄河大桥工程为依托项目,从现场取芯进行各项试验,观察裂缝产生情况,重点分析行业标准和地方标准对施工配合比、水泥含量、集料级配等方面的不同要求及... 详细信息

针对路面水泥稳定碎石基层在施工过程中经常出现横向收缩裂缝的问题,以国道107官渡黄河大桥工程为依托项目,从现场取芯进行各项试验,观察裂缝产生情况,重点分析行业标准和地方标准对施工配合比、水泥含量、集料级配等方面的不同要求及其对收缩裂缝的影响,并以此制定相应的处治措施。使用完善后的施工配合比节约了水泥用量,降低了施工成本,提高了施工质量,可为同类工程施工提供借鉴。

关键词：道路工程:水泥稳定碎石收缩裂缝处治措施

Proteome Analysis of NaCl Stress-Responsive Apoplastic Proteins in Rice Shoot by 2-D DIGE

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Proteome Analysis of NaCl Stress-Responsive Apoplastic Prote...

Nanoimprint lithography-assisted block copolymer self-assembly for hyperfine fabrication of magnetic patterns based on L10-FePt nanoparticles

中国植物生理学会第十次会员代表大会暨全国学术年会

作者： Song Yun, sun Daye, guo yi* 1Institute of Molecular and Cell Biology, Hebei Normal University, Shijiazhuang, P. R. China, 050016

＜正＞Plants have evolved sophisticated systems to cope with the adverse environmental conditions such as cold, drought and salinity due to their sessile nature. It has been reported that stress conditions have great ... 详细信息

关键词： Apoplastic proteins salt stress rice 2-D DIGE

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Science China Chemistry 2025年

作者： Jie Zhang yi Chen Guijun Li Zelin sun Zhengong Meng Wai-Yeung Wong Department of Applied Biology and Chemical Technology and Research Institute for Smart Energy The Hong Kong Polytechnic University The Hong Kong Polytechnic University Shenzhen Research Institute Division of Integrative Systems and Design and Department of Electronic and Computer Engineering The Hong Kong University of Science and Technology School of Flexible Electronics (Future Technology) and Institute of Advanced Materials (IAM) Nanjing Tech University

L10-FePt-type bit-patterned media has provided a promising alternative for ultrahigh-density magnetic recording systems in the current digital era, but rapid fabrication of magnetic patterns with hyperfine bit islands is still challenging, especially with the target for miniaturization and scalable production simultaneously. Herein, Fe,Pt-containing block copolymers were utilized as single-source precursors for solution-processable patterning and subsequent generation of the demanding magnetic FePt dots by in situ pyrolysis. High-throughput nanoimprint lithography was initially employed to fabricate the predefined bit cells precisely,and then the intrinsic self-assembly of phase-separated block copolymers further drove the formation of accurate bit *** from the synergistic effect of top-down lithographic approach and bottom-up self-assembly, the customizable patterns could be achieved for large-scale mass production in targeted areas, but high-density isolated dots could also be accurately aligned along the patterned features after subsequent self-assembly. This reliable strategy would provide a good avenue to precisely construct ultrahigh-density magnetic data storage devices.

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Formation and evolution of supercritical geofluid

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Science China Earth Sciences 2025年第1期68卷 39-51页

作者： Huaiwei NI yilin XIAO Xiaolin XIONG Xiandong LIU Chunxiao GAO yi-Xiang CHEN Yunguo LI Wan-Cai LI Xuan guo Yang-Yang WANG Dong-Bo TAN Li ZHANG State Key Laboratory of Lithospheric and Environmental Coevolution University of Science and Technology of China Deep Space Exploration Laboratory/School of Earth and Space Sciences University of Science and Technology of China Guangzhou Institute of Geochemistry Chinese Academy of Sciences School of Earth Sciences and Engineering Nanjing University State Key Lab of Superhard Materials Jilin University

In this work, we provide a comprehensive review on the formation, evolution, properties, and effects of supercritical geofluid. In Earth's interior, enhanced miscibility between H2O and silicate by the addition of special components or by the increase of pressure and temperature gives rise to supercritical geofluid with a significant amount of both H2O and silicate *** formation of supercritical geofluid in magmatic-hydrothermal systems, typified by pegmatite system, is governed by meltfluid critical curve. The formation of supercritical geofluid in metamorphic systems, typified by subducted slab, is governed by the second critical end point. Experimental results suggest that the presence of boron and fluorine in pegmatite system makes it possible to form supercritical geofluid at crustal depths, but the release of supercritical geofluid from subducted slab is withheld until almost 100 km depth. A major presence of both H2O and depolymerized structural units（monomers, dimers, etc.） endows supercritical geofluid with unique physical properties including low density, low elastic moduli, low viscosity, high diffusivity,and high electrical conductivity. Supercritical geofluid can effectively mobilize a variety of elements even including high field strength elements and heavy rare earth elements. The chemical signatures of supercritical geofluid can be inherited by metasomatized mantle and mantle-derived melts, and this could give an explanation of the oxidation of arc magmas. Phase separation of supercritical geofluid through the mechanism of spinodal decomposition leads to formation of a melt network. Multiphase fluid inclusions recovered from subduction zone rocks and pegmatites are possible relics of supercritical geofluid. Supercritical geofluid can cause electrical anomaly and low seismic velocity near the top of subducted slab, and can be linked with intermediate-focus earthquakes. Supercritical geofluid may have played a crucial role in the formation of pe

关键词： Supercritical geofluid Miscibility Subduction zone Pegmatite

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山丹马场长山子矿区复杂地层综合钻探技术

探矿工程（岩土钻掘工程） 2008年第9期35卷 6-10页

作者：孙一国甘肃煤田地质局145队甘肃张掖734000

对于煤田钻探中遇到的第四系巨厚卵砾石层松散、坍塌、掉块、漏失,煤系地层构造复杂、裂隙发育、漏失严重,部分层段岩石致密坚硬、复杂难钻、效率低下等复杂地层问题,需要应用综合钻探技术进行施工。通过对不同地层采用不同钻进、护壁... 详细信息

对于煤田钻探中遇到的第四系巨厚卵砾石层松散、坍塌、掉块、漏失,煤系地层构造复杂、裂隙发育、漏失严重,部分层段岩石致密坚硬、复杂难钻、效率低下等复杂地层问题,需要应用综合钻探技术进行施工。通过对不同地层采用不同钻进、护壁堵漏方法及施工技术措施的阐述,提出了几种可以提高钻效、降低成本的方法。

关键词：复杂地层套管护壁堵漏薄壁钻头钢粒钻进综合钻探技术