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水处理技术 2018年第4期44卷 122-125,132页

作者：张晓航何绪文王浩袁野史弋李福勤中国矿业大学(北京)化学与环境工程学院北京100083 河北工程大学能源与环境工程学院河北邯郸056038

采用磁絮凝技术处理高悬浮物矿井水,研究了混凝剂、絮凝剂、磁种投加量、磁种浸泡p H值、沉淀时间和搅拌强度对出水效果的影响,并使用MFC+Open CV对絮体分形结构进行分析。结果表明,最佳混凝剂为PAC,投加量60 mg/L;最佳絮凝剂为阴离子P... 详细信息

采用磁絮凝技术处理高悬浮物矿井水,研究了混凝剂、絮凝剂、磁种投加量、磁种浸泡p H值、沉淀时间和搅拌强度对出水效果的影响,并使用MFC+Open CV对絮体分形结构进行分析。结果表明,最佳混凝剂为PAC,投加量60 mg/L;最佳絮凝剂为阴离子PAM,投加量4 mg/L;一级、二级、三级反应池最佳搅拌强度分别为300、200、100r/min;磁种投加前应在中性或碱性溶液中浸泡,磁种的投加显著缩短沉淀时间,15 s内水中絮体即可沉淀完毕,出水浊度去除率达95%以上;磁絮凝絮体分形维数1.692 55,R2为0.9720 6。

关键词：磁絮凝混凝 Open CV 分形

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HPLC法测定乌头须根中准格尔乌头胺和宋果灵的质量比

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吉林大学学报（理学版） 2015年第6期53卷 1330-1340页

作者：闫江红马立杰杨洁李绪文金永日杨宗辉吉林省中医药科学院第一临床医院长春130021 吉林大学化学学院长春130012 吉林大学中日联谊医院长春130031

采用高效液相色谱法测定乌头须根中准格尔乌头胺和宋果灵两种生物碱类化合物的质量比．用Zorbax Extend—C18（4．6mm×250mm ODS，5μm）色谱柱，以V（甲醇）：V（w（三乙胺）=0．1％）=6：4为流动相，流速为1．0mL／min，检测波长... 详细信息

采用高效液相色谱法测定乌头须根中准格尔乌头胺和宋果灵两种生物碱类化合物的质量比．用Zorbax Extend—C18（4．6mm×250mm ODS，5μm）色谱柱，以V（甲醇）：V（w（三乙胺）=0．1％）=6：4为流动相，流速为1．0mL／min，检测波长220nm，柱温25℃．结果表明：在选择的色谱条件下，两种生物碱类成分可实现基线分离，且线性范围宽（0．1-10．0μg），r^2=0．9998；平均加样回收率分别为99．8％和99．3％，相对标准偏差（RSD）分别为1．49％，1．46％（n=6），质量比分别为57．0，110．0μg／g．

关键词：乌头须根准格尔乌头胺宋果灵高效液相色谱法质量比

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GPRC5A overexpression predicted advanced biological behaviors and poor prognosis in patients with gastric cancer

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TUMOR BIOLOGY 2016年第1期37卷 503-510页

作者： liu, Honggen Zhang, Yunchao Hao, xuwen Kong, Fanming li, Xiaojiang Yu, Jianchun Jia, Yingjie Tianjin Univ Tradit Chinese Med Teaching Hosp 1 Dept Oncol Tianjin 300193 Peoples R China Tianjin Nankai Hosp Dept Gastroenterol Tianjin 300193 Peoples R China

G protein-coupled receptor, family C, group 5, member A (GPRC5A) had received attentions for its role in carcinogenesis and prognostic values in several types of cancer. However, the functional roles of GPRC5A in gastric cancer (GC) had never been elucidated. The expression levels of GPRC5A were detected by real-time quantitative reverse transcription PCR and Western blot in GC tissues and adjacent non-tumor tissues. GPRC5A expression in tissue sections of 106 GC samples was evaluated using immunohistochemistry. The staining results were compared with clinicopathological factors and to the prognosis of GC patients. The mRNA and protein expression levels of GPRC5A in gastric cancer tissues were higher than those in adjacent non-tumor tissues. Positive GPRC5A expression was significantly correlated with larger size of primary tumor, diffuse type (Lauren's classification), deeper serosal invasion, and more lymph node metastasis. In addition, Kaplan-Meier curve analysis demonstrated that GC patients with positive GPRC5A expression had poor prognosis than those with negative GPRC5A expression. GPRC5A expression was identified as an independent factor of the overall survival in GC patients by multivariate Cox analysis. Further, the overall survival difference existed between patients with GPRC5A positive and negative groups in GC patients with lymph node metastasis. Our results suggested that elevated levels of GPRC5A played significant roles in GC progression. GPRC5A could serve as a prognostic biomarker of GC.

关键词： Gastric cancer GPRC5A Immunohistochemistry Prognosis

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Biocompatibility and Effectiveness Evaluation of a New Hemostatic Embolization Agent: Thrombin Loaded Alginate Calcium Microsphere

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BIOMED RESEARCH INTERNATIONAL 2017年第20170101期2017卷 1875258-1875258页

作者： Xuan, Fengqi Rong, Jingjing liang, Ming Zhang, xuwen Sun, Jingyang Zhao, lijun li, Yang liu, Dan li, Fei Wang, Xiaozeng Han, Yaling Gen Hosp Shenyang Mil Reg Dept Cardiol Shenyang 110016 Liaoning Peoples R China Dezhou Peoples Hosp Electrocardiogram Lab Dezhou 253000 Shandong Peoples R China Dezhou Peoples Hosp Dept Ophthalmol Dezhou 253000 Shandong Peoples R China

Background. Until now, there has been no ideal embolization agent for hemorrhage in interventional treatment. In this study, the thrombin was encapsulated in alginate calcium microsphere using electrostatic droplet technique to produce new embolization agent: thrombin loaded alginate calcium microspheres (TACMs). Objectives. The present work was to evaluate the biocompatibility and hemostatic efficiency of TACMs. Methods. Cell cytotoxicity, hemolysis, and superselective embolization of dog liver arteries were performed to investigate the biocompatibility of TACMs. To clarify the embolic effect of TACMs mixed thrombus in vivo, hepatic artery injury animal model of 6 beagles was established and transcatheter artery embolization for bleeding was performed. Results. Coculture with VECs revealed the noncytotoxicity of TACMs, and the hemolysis experiment was negligible. Moreover, the histological study of TACMs in liver blood vessel showed signs of a slight inflammatory reaction. The results of transcatheter application of TACMs mixed thrombus for bleeding showed that the blood flow was shut down completely after the TACMs mixed thrombus was delivered and the postprocedural survival rate of animal models at 12 weeks was 100%. Conclusions. With their good biocompatibility and superior hemostatic efficiency, TACMs might be a promising new hemostatic agent with a wide range of potential applications.

关键词： BLOOD analysis HEMORRHAGE treatment ALGINATES ANIMAL experimentation BIOLOGICAL assay BIOLOGICAL models BIOMEDICAL materials BLOOD circulation BODY temperature BODY weight CALCIUM CATHETERIZATION CELL culture CELL physiology DOGS ELECTROCARDIOGRAPHY ENZYMES EPITHEliAL cells HEMOLYSIS & hemolysins HEMOSTATICS HEPATIC artery INFLAMMATION liVER MATERIALS testing PROBABIliTY theory FINANCING of research SCANNING electron microscopy STATIC electricity THROMBIN TOXICITY testing THERAPEUTIC embolization TREATMENT effectiveness DATA analysis software DESCRIPTIVE statistics IN vitro studies KRUSKAL-Wallis Test IN vivo studies

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VCSEL DEVICE

VCSEL DEVICE

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作者： MAI, Jiaer 麦家儿 YANG, Lu 杨璐 ZHANG, Jinhui 章金惠 li, Jiasheng 李家声 OU, xuwen 欧叙文 LU, Jiacai 陆家财 liN, Yushan 林宇珊

标准号: WO2019/165769(A1)

A vertical cavity surface emitting laser (VCSEL) device, comprising: a bracket that has a hollow cavity (2) and a VCSEL chip (1) encapsulated in the hollow cavity (2), wherein the bracket comprises a base (3) and a diffusion sheet (4) used for sealing the base (3), the VCSEL chip (1) is encapsulated on the base (3), and the diffusion sheet (4) is disposed above a light emergent surface of the VCSEL chip (1), such that light emitted from the VCSEL chip (1) traverses the diffusion sheet (4) and is emitted to the outside;a cut-off film (5) is disposed on the diffusion sheet (4), a through hole (6) is opened on the cut-off film (5), and the through hole (6) is disposed above the light emergent surface of the VCSEL chip (1), such that the light emitted from the VCSEL chip (1) penetrates the through hole (6), and then traverses the diffusion sheet (4) and is emitted to the outside. The flexible adjustment of the light-emitting angle is achieved by means of combining the VCSEL chip (1) with the diffusion sheet (4). Additionally, by means of disposing the cut-off film (5) on the diffusion sheet (4), the light scattered on the cut-off film (5) is reflected back outside of the VCSEL device, thereby improving the light emergence effect.

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煤液化沥青合成COPNA树脂的研究

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神华科技 2018年第2期16卷 59-61页

作者：舒成李克健舒歌平杨葛灵章序文周颖中国神华煤制油化工有限公司上海研究院上海201108 大连理工大学炭素材料研究室辽宁大连116024

以来自煤直接液化残渣中的煤液化沥青为原料、对苯二甲醇为交联剂,在对甲基苯磺酸或硫酸的催化作用下,合成缩合多环多核芳烃树脂(COPNA树脂)。通过测定树脂的甲苯不溶物TI、喹啉不溶物QI以及残炭率等参数来评价其性能。结果表明:50%浓... 详细信息

以来自煤直接液化残渣中的煤液化沥青为原料、对苯二甲醇为交联剂,在对甲基苯磺酸或硫酸的催化作用下,合成缩合多环多核芳烃树脂(COPNA树脂)。通过测定树脂的甲苯不溶物TI、喹啉不溶物QI以及残炭率等参数来评价其性能。结果表明:50%浓度的硫酸,160℃反应2.5h制得COPNA树脂样品,β树脂含量达58%,残炭率为50%,10%失重时的热分解温度为525℃。

关键词：煤液化沥青煤炭直接液化残渣 COPNA树脂 β树脂

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Stereo Matching Algorithm of Color Image Based on Weber's Law and Census

Stereo Matching Algorithm of Color Image Based on Weber's La...

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International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIHMSP)

作者： Qiang Wu Xiangnan Zhao xuwen li College of Electronic Information and Control Engineering Beijing University of Technology Beijing China College of Life Science and Bioengineering Beijing University of Technology Beijing China

The algorithm presented here is used on unmanned aerial vehicles system. In 2013,*** proposed a matching cost computation model(or function), This matching cost model combined three kinds of constraints, the cost function is formulated by combining three individual costs:a cost computed on an extended census transformation of the images, the absolute difference cost, taking into account information from colour channels, and a cost based on the principal image *** show that the cost function is excellent performance in similar *** it to the stereo matching of ancient buildings, it is favorable for practical. However, this experiment, in color mutated region, leaded to blurred ***, our proposed method added color space structural information, which based on HVS Weber's law, to the cost function. we use the differential excitation of WLD reflects the structure of color *** robust cost measures can reduce percent of bad pixels in mutated color region. The proposed method use color image, which is used after epipolar line rectification.

关键词： Image color analysis Cost function Transforms Robustness Computed tomography Stereo vision Skeleton

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竹炭/环氧聚酯复合材料的电磁屏蔽性能研究

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竹子学报 2018年第1期37卷 60-63页

作者：陈茂军李文珠倪忠进徐文张武浙江工业职业技术学院浙江农林大学工程学院

采用高速粉碎法制备粉末竹炭,使用热压成型制备竹炭/环氧聚酯复合材料,研究了复合材料的电磁屏蔽效能。结果表明,环氧聚酯含量对复合材料电磁屏蔽性能的影响明显,电磁屏蔽效能随环氧聚酯含量的增加而降低;2 mm厚的复合材料电磁屏蔽效能... 详细信息

采用高速粉碎法制备粉末竹炭,使用热压成型制备竹炭/环氧聚酯复合材料,研究了复合材料的电磁屏蔽效能。结果表明,环氧聚酯含量对复合材料电磁屏蔽性能的影响明显,电磁屏蔽效能随环氧聚酯含量的增加而降低;2 mm厚的复合材料电磁屏蔽效能超过21.2 d B,最高达36.8 d B。

关键词：竹炭粒径竹炭/环氧聚酯复合材料电阻率电磁屏蔽

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METHOD FOR PURIFYING AND CONCENTRATING FOOT-AND-MOUTH DISEASE VIRUS INACTIVATED ANTIGEN

METHOD FOR PURIFYING AND CONCENTRATING FOOT-AND-MOUTH DISEAS...

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作者： QIAO, xuwen ZHENG, Qisheng YU, Xiaoming CHEN, Jin li, Pengcheng ZHANG, Yuanpeng HOU, liting HOU, Jibo

标准号: WO2018137323(A1)

Disclosed is a method for purifying and concentrating a foot-and-mouth disease virus inactivated antigen, comprising the steps of: (1) adding an adaptor protein with the amino acid sequence as shown in SEQ ID NO: 2 into the foot-and-mouth disease virus inactivated antigen, mixing homogeneously, and incubating;(2) adding a purified carrier, mixing homogeneously, and incubating the mixture, wherein the purified carrier is the skeleton of Lactococcus lactis;and (3) centrifuging and obtaining a precipitate. The purifying and concentrating method can efficiently purify the foot-and-mouth disease virus inactivated antigen and efficiently remove impurities, and has a high antigen recovery efficiency, large concentration multiple, low equipment requirement, simple operation, and low cost.

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Research Progress of Obstacle Detection Based on Monocular Vision

Research Progress of Obstacle Detection Based on Monocular V...

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International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIHMSP)

作者： Qiang Wu Jie Wei xuwen li College of Electronic Information and Control Engineering Beijing University of Technology Beijing China College of Life Science and Bioengineering Beijing University of Technology Beijing China

In recent years, unmanned autonomous vehicle navigation technology or UAV research is a hot topic in the field of machine vision, and obstacle detection is the basis of autonomous navigation. In this thesis, the author analyzed the deficiency of stereoscopic vision and classified current monocular obstacle detection algorithms. According to the properties of algorithms, this paper elaborated the function of algorithms based on features, focal length and movements respectively. The author also discussed current situation and prospects for various types of algorithms, including feature extraction and matching, focusing and defocusing model, background subtraction, frame difference and optical flow. Finally, this paper summarized advantages and disadvantages of different autonomous navigation algorithm and discussed the prospect of the monocular obstacle detection technology.

关键词： Computer vision Optical imaging Image motion analysis Feature extraction Optical sensors Motion compensation Cameras

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