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Fabrication of Microfluidic Fiber Chip Detection System

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稀有金属材料与工程 2006年第A3期35卷 525-526页

作者： Bo su da-fu Cui Chang-chun Liu Xing Chen State Key Lab. of Transducer Tech. Inst. of Electronics Chinese Academy of Sciences Beijing 100080 China

The diameter of the excitation beam was decreased greatly by integrating the fiber on the microfluidic chip as light propagation *** coupling efficiency of the fiber was improved with optical fiber collimation device coupling beam. The chip was placed in the darkroom to avoid the interference of the external *** cost of the instrument was decreased with a high brightness blue LED as excitation source;the performance of the system was valuated by the determination of FITC fluorescein with a minimum detectable concentration of 2.2×10^(-8) mol/L,the Signal-to-Noise Ratio (SNR) S/N=*** correlation coefficient of the detection system within the range of 1.8×10^(-7) mol/L～4×10^(-5)mol/L was 0.9972.

关键词： microfluidic chip light-emitting diode optical fiber detector

Internal and near-surface fields for a chiral sphere under arbitrary laser beam illumination

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Chinese Physics B 2019年第6期28卷 232-238页

作者： Bi-da su Ming-Jun Wang Yue Peng su-Hui Yang Hua-Yong Zhang Department of Photoelectric Engineering Beijing Institute of TechnologyBeijing 100854China Science and Technology on Optical Radiation Laboratory Beijing 100854China School of Automation and Information Engineering Xi’an University of TechnologyXi’an 710048China School of Electronics and Information Engineering Anhui UniversityHefei 230039China

A general scheme for the investigation of scattering by a chiral sphere under arbitrary monochromatic laser beam illumination is presented. The scattered and internal fields are expanded by using appropriate spherical vector wave functions, and their expansion coefficients are determined by the boundary conditions and the projection method. Targeting multiple incidence forms such as Gaussian beam, Hermite–Gaussian beam, doughnut mode beam and zero-order Bessel beam, the influence and propagation of near-surface intensity field for a chiral sphere are analyzed. These properties are very important for studying the properties of chiral media, and for manipulating the optical tweezers and super-resolution imaging of particles.

关键词： scattering chiral sphere monochromatic laser beamirradiation field intensity distribution

P-and SV-wave dispersion and attenuation in saturated microcracked porous rock with aligned penny-shaped fractures

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Petroleum Science 2024年第1期21卷 143-161页

作者： Sheng-Qing Li Wen-Hao Wang Yuan-da su Jun-Xin Guo Xiao-Ming Tang School of Geosciences China University of Petroleum(East China)Qingdao 266580ShandongChina Laoshan National Laboratory Qingdao 266071ShangdongChina Guangdong Provincial Key Laboratory of Geophysical High-resolution Imaging Technology Southern University of Science and TechnologyShenzhen 518055GuangdongChina Department of Earth and Space Sciences Southern University of Science and TechnologyShenzhen 518055GuangdongChina

P-and SV-wave dispersion and attenuation have been extensively investigated in saturated poroelastic media with aligned ***,there are few existing models that incorporate the multiple wave attenuation mechanisms from the microscopic scale to the macroscopic ***,in this work,we developed a unified model to incorporate the wave attenuation mechanisms at different scales,which includes the microscopic squirt flow between the microcracks and pores,the mesoscopic wave-induced fluid flow between fractures and background(FB-WIFF),and the macroscopic Biot's global flow and elastic scattering(ES)from the *** Tang's modified Biot's theory and the mixed-boundary conditions,we derived the exact frequency-dependent solutions of the scattering problem for a single penny-shaped fracture with oblique incident P-and *** then developed theoretical models for a set of aligned fractures and randomly oriented fractures using the Foldy *** results indicated that microcrack squirt flow considerably influences the dispersion and attenuation of P-and SV-wave *** coupling effects of microcrack squirt flow with the FB-WIFF and ES of fractures cause much higher velocity dispersion and attenuation for P waves than for SV *** oriented fractures substantially reduce the attenuation caused by the FB-WIFF and ES,particularly for the ES attenuation of SV *** a comparison with existing models in the limiting cases and previous experimental measurements,we validated our model.

关键词： Aligned fractures P-and SV-wave Dispersion and attenuation Microcracked porous background FB-WIFF Elastic scattering Squirt flow

Growth Control of High-Performance In As/Ga Sb Type-Ⅱ superlattices via Optimizing the In/Ga Beam-Equivalent Pressure Ratio

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Chinese Physics Letters 2020年第3期37卷 60-63页

作者： da-Hong su Yun Xu Wen-Xin Wang Guo-Feng Song Institute of Semiconductors Chinese Academy of SciencesBeijing 100083 College of Materials Science and Opto-Electronic Technology University of Chinese Academy of SciencesBeijing 100049 Beijing Key Laboratory of Inorganic Stretchable and Flexible Information Technology Beijing 100083 Institute of Physics Chinese Academy of SciencesBeijing 100190

The performance of type-Ⅱ superlattice(T2 SL) long-wavelength infrared devices is limited by crystalline quality of T2 SLs. We optimize the process of growing molecular beam epitaxy deposition T2 SL epi-layers on Ga Sb(100)to improve the material properties. Samples with identical structure but diverse In/Ga beam-equivalent pressure(BEP) ratio are studied by various methods, including high-resolution x-ray diffraction, atomic force microscopy and high-resolution transmission electron microscopy. We find that appropriately increasing the In/Ga BEP ratio contributes to improving the quality of T2 SLs, but too large In BEP will much more easily cause a local strain,which can lead to more In Sb islands in the In Sb interfaces. The In Sb islands melt in the In Sb interfaces caused by the change of chemical potential of In atoms may result in the "nail" defects covering the whole T2 SLs, especially the interfaces of Ga Sb-on-In As. When the In/Ga BEP ratio is about 1, the T2 SL material possesses a lower full width at half maximum of +1 first-order satellite peak, much smoother surface and excellently larger area uniformity.

关键词： properties. beam identical

Human RING finger protein ZNF645 is a novel testis-specific E3 ubiquitin ligase

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Asian Journal of Andrology 2010年第5期12卷 658-666页

作者： Yun-Qiang Liu Gang Bai Hao Zhang dan su da-Chang Tao Yuan Yang Yong-Xin Ma Si-Zhong Zhang Department of Medical Genetics State Key Laboratory of Biotherapy West China Hospital West China Medical SchoolSiehuan University Chengdu 610041 China

A large number of testis-specific genes are involved in the complex process of mammalian spermatogenesis. Identification of these genes and their roles is important for understanding the mechanisms underlying spermatogenesis. Here we report on a novel human RING finger protein, ZNF645, which contains a C3HC4 RING finger domain, a C2H2 zinc-finger domain, and a proline-rich region, indicating that it has a structure similar to that of the c-Cbl-like protein Hakai. ZNF645 was exclusively expressed in normal human testicular tissue. Immunohistochemical analysis confirmed that ZNF645 protein was present in spermatocytes, round and elongated spermatids, and Leydig cells. Immunofluorescence staining of mature sperms further showed that the ZNF645 protein was localized over the postacrosomal perinuclear theca region and the entire length of sperm tail. An in vitro ubiquitination assay indicated that the RING finger domain of the ZNF645 protein had E3 ubiquitin ligase activity. Therefore, we suggest that ZNF645 might act as an E3 ubiquitin-protein ligase and play a role in human sperm production and quality control.

关键词： E3 ubiquitin ligase RING finger protein spermatogenesis ZNF645

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海洋岩石圈板块有效弹性厚度研究

地球物理学报 2012年第10期55卷 3259-3265页

作者：苏达权中国科学院南海海洋研究所广州510301

本文在前人研究大陆岩石圈板块有效弹性厚度的基础上,建立研究海洋岩石圈板块有效弹性厚度的理论模型,推导出与大陆岩石圈不同的海洋岩石圈板块响应函数Z(k,Te)理论计算公式.并分析海洋岩石圈板块响应函数Z(k,Te)的特点.文中对实际的海... 详细信息

本文在前人研究大陆岩石圈板块有效弹性厚度的基础上,建立研究海洋岩石圈板块有效弹性厚度的理论模型,推导出与大陆岩石圈不同的海洋岩石圈板块响应函数Z(k,Te)理论计算公式.并分析海洋岩石圈板块响应函数Z(k,Te)的特点.文中对实际的海洋测量数据的响应函数Z(k,Te)进行计算和分析,估算我国南海南沙海域和南海中央海盆岩石圈板块有效弹性厚度分别约为10km和6～7km.

关键词：响应函数Z(k Te) 海洋岩石圈板块有效弹性厚度海底地形自由空间重力异常

Active inductor shunt peaking in high-speed VCSEL driver design

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Chinese Physics C 2013年第11期37卷 45-48页

作者：梁福田 GONG datao HOU suen LIU Chonghan LIU Tiankuan su da-Shung TENG Ping-Kun XIANG Annie YE Jingbo 金革 State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China Southern Methodist University Dallas TX 75275 U.S.A. Institute of Physics Academia Sinica

An all-transistor active-inductor shunt-peaking structure has been used in a prototype of 8 Gbps high- speed VCSEL driver which is designed for the optical link in ATLAS liquid Argon calorimeter upgrade. The VCSEL driver is fabricated in a commercial 0.25 p^m Silicon-on-Sapphire （SOS） CMOS process for radiation tolerant purpose. The all-transistor active-inductor shunt-peaking is used to overcome the bandwidth limitation from the CMOS pro- cess. The peaking structure has the same peaking effect as the passive one, but takes a small area, does not need linear resistors and can overcome the process variation by adjust the peaking strength via an external control. The design has been taped out, and the prototype has been proven by the preliminary electrical test results and bit error ratio test results. The driver achieves 8 Gbps data rate as simulated with the peaking. We present the all-transistor active-inductor shunt-peaking structure, simulation and test results in this paper.

关键词： active inductor shunt peaking high-speed VCSEL driver ASIC

Rare autonomic nervous system dysfunction: Alternating bilateral mydriasis

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World Journal of Emergency Medicine 2021年第4期12卷 330-331页

作者： Peng Xu Jing Wu Li-da su Fang Qian Hu-qiang Wan Yue Yu Min Li Ying-hong Hu Man Huang Department of Neuroscience Care Unit the Second Affi liated Hospital of Zhejiang University School of MedicineHangzhou 310009China Department of General Intensive Care Unit the Second Affi liated Hospital of Zhejiang University School of MedicineHangzhou 310009China Department of Intensive Care Unit Severe Burn Wards the Second Affi liated Hospital of Zhejiang University School of MedicineHangzhou 310009China

Dear editor,Pupillary abnormalities, i.e., mydriasis, pupillary arefl exia, and/or anisocoria, may indicate the occurrence of acute clinical events in intensive care units (ICUs),which are particularly seen in severe patients with brain and/or cervical spinal cord injury. The pathophysiology of benign episodic mydriasis is still not completely clear. We present a patient with severe burns presented with temporary alternating bilateral pupil enlargement accompanied by paroxysmal increases in respiration,heart rate, and blood pressure.

关键词： editor sis bilateral

Microscopic characteristics and geological significance of tight dolomite in well Xike-1,Xisha Islands,China

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China Geology 2019年第4期2卷 458-466页

作者： Qin Na Hong Xu da-peng su Meng Tao Wei-wei Zhang Zhao-peng Ji Qing Wang School of Earth Science and Technology China University of PetroleumQingdao 266580China Qingdao Institute of Marine Geology China Geological SurveyMinistry of Natural ResourcesQingdao 266071China Shandong Provincial Key Laboratory of Sedimentary Mineralization and Minerals Shandong University of Science and TechnologyQingdao 266590China First Institute of Oceanography Key Laboratory of Marine Sediments and Environmental Geologic OceanographyQingdao 266061China Ocean National Laboratory Function Laboratory of Marine Geo-Resource Evaluation and Exploration TechnologyQingdao 266071China School of Geosciences and Engineering Shandong University of Science and TechnologyQingdao 266590China Yangtze University Wuhan 430100China

A recent study suggests that the deep dolomites in well Xike-1 located more than 1000 m deep have a very low porosity,and no permeability for most of the *** that the largest oil and gas fields in the South China Sea are all composed of biohermal dolomites while the deep dolomites of Xike-1 serve as the caprock formations rather than the reservoirs,this represents the first discovery and is of great theoretical *** this paper,core photos of the tight dolomites are *** specimens description and systematic porosity-permeability reveal a very low porosity,and no permeability for most of the ***,SEM and XRPD analysis discovered that the dolostones in the deep tight dolomites are quite large in size and euhedral or subhedral in *** red-stained sections are mostly pink in color and have a full coverage,which are considered as evidence for multiple calcite intrusions after the formation of ankerite *** relict textures are *** order degree is medium to *** dolomites could be the product of penecontemporaneous dolomitization.

关键词： Permeability Order degree Tight dolomite Rock types Gas oil exploration engineering Xike-1 of Shi Island China