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STUDY ON EFFECTS OF Yb^(3+) AND ITS COMPLEXES ON CELLS IN VITRO

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Journal of Rare Earths 1990年第1期8卷 61-66页

作者： Nie Yuxiu Chen Yulan(Department of Histology & Embryology,Norman Bethune university of Medical Sciences,Changchun 130021,P.R.China)Shi Feng Ni Jiazan(Changchun Institute of applied Chemistry,Academia Sinica,Changchun 130022,P.R.China)

This paper reports the effects of the Yh^(3+) and its four complexes on cultured *** results indicate that the 5 mmol YbCl_3 has evident toxicity on cultured cells,and after it is coordinated with ligands,its toxicity is *** complexes neither destroy the growth nor inhibit the adliesion of diploid cell to the surface of the flasket,but they inhibit the adhesion of cancer cells,and result in cell *** complex of Yb~?(3+) with ligand(1) can destroy the cancer cells in division *** aberrant mitotic cells,but the other three complexes of Yb^(3+) with ligands can destroy the cancer cells in *** effects depend on the dose of the complex.

关键词： STUDY ON EFFECTS OF Yb AND ITS COMPLEXES ON CELLS IN VITRO show ITS

Photoluminescence,thermally stimulated luminescence and dosimetry properties of dysprosium doped strontium phosphate phosphors

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Photoluminescence,thermally stimulated luminescence and dosi...

第七届全国稀土发光材料学术研讨会

作者： Li Juan~(1,2,9) Zhou Huijun~1 Zhang Liwei~1 Zhang Chunxiang~3 Tang Qiang~3 Hao Jingquan~2 Zhang Yanli~4,Su Qiang~(2,5) Wang Shubin~2 (1 Chemistry and Biology College of Beihua university,Jilin,132013,P.R.China) (2 Key Laboratoiy of Rare Earth Chemistry and Physics,Changchun Institute of applied Chemistry, Chinese Academy of Science,Changchun,130022,P.R.China) (3 Department of Physics,Sun Yat-Sen university,Guangzhou,510275,P.R.China) (4 Ionizing Radiation division,National Institute of Metrology,Beijing,130000,P.R.China) (5 State Key Laboratoiy of Optoelectivnic Materials and Technology,School of Chemistry and Chemical Engineering,Sun Yat-Sen university,Guangzhou,510275,P.R.China)

Thermally stimulated luminescence(TSL) is widely employed for radiation dosimetry and geological *** stimulated luminescence(TSL) dosimetry has been developed to the stage that it represents a key technique in absorbed dose *** in radiation dosimetry by the TSL technique has resulted in numerous efforts seeking production of new,high-performance TSL materials due to their potential applications in clinical,personal and environmental monitoring for both ionizing and non-ionizing radiation. Polycrystalline powder samples of dysprosium doped Sr(PO4):Dy phosphors were prepared by solid state reaction in air at high temperature and characterized by x-ray powder diffraction in this work. The excitation spectrum for Dy in the sample Sr(PO):Dy by monitoring the emission at 577nm exhibited H→D(294nm),H→P(326nm),H→P(350nm),H→P(367nm), H→M(389nm)andH→G(432nm)forbidden f-f transitions of Dy *** emission broad band at about 423nm,475nm,577nm,665nm and 750nm attributed to the host emission and F→H,F→H,F→HandF→Hf-f transitions of Dy ions by excited with wavelength 350nm were observed. The diffuse reflectance spectra of Sr(PO):Dy after and before 60Co gamma-ray irradiation and the subtracting spectrum were studied in 200000nm wavelength *** absorption bands were observed in the subtracting spectrum,the first one at about 260nm,and the later two bands at about 403 and 632 nm. The TSL emission spectrum of Sr(PO):Dy by 60Co gamma-rays irradiation at 293k showed that the characteristic emission bands at about 450nm,480nm,575 nm,665nm,750nm attributed to the host emission and F→H,F→H,F→Hand F→Hf-f transitions of Dy ions, agreeing basically with the photoluminescence(PL),*** of emission spectrum of PL and TSL originate from the same luminescent centers of Dy *** emission from Dy or Dy ions was observed in the measurement waveiength *** relative TSL intensity was plotted as a function of 60Co gamma-rays irradiation dose for the s

关键词： Thermally stimulated luminescence Dosimetry Strontium phosphate

Raman imaging of graphene:from fundamental study to applications

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Raman imaging of graphene:from fundamental study to applicat...

第十五届全国光散射学术会议

作者： Z.X.Shen,Z.H.Ni,Y.Y.Wang,YM You,D.Zhan,ZQ Luo,L Liu and T.Yu (division of Physics and applied Physics,School of Physical and Mathematical Sciences,Nanyang Technological university,Singapore 637371,Singapore)

＜正＞Graphene exhibits many exciting properties,such as anomalously quantized Hall effects,massless Dirac-Fermions like charge carrier,existence of a minimum conductivity,which make it promising material for the future nano-electronic *** these properties are originated from its unique band structure whose conical valence and conduction bands meet at the Dirac point in Brillouin zone.

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Bearings-only Multi-Sensor Multi-Target Tracking Based on Rao-Blackwellized Monte Carlo Data Association

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Bearings-only Multi-Sensor Multi-Target Tracking Based on Ra...

第二十九届中国控制会议

作者： WANG Yazhao1,JIA Yingmin1,2,DU Junping3,YU Fashan4 1.The Seventh Research division and the Department of Systems and Control,Beihang university(BUAA),Beijing 100191,P.R.China2.Key Laboratory of mathematics,Informatics and Behavioral Semantics(LMIB),Ministry of Education,SMSS,Beihang university(BUAA),Beijing 100191,P.R.China3.Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia,School of Computer Science and Technology,Beijing university of Posts and Telecommunications,Beijing 100876,P.R.China4.School of Electrical Engineering and Automation,Henan Polytechnic university,Jiaozuo 454000,Henan,P.R.China

This paper addresses the problem of tracking multiple targets using multi-sensor bearings-only measurements in the presence of noise and *** Rao-Blackwellized Monte Carlo data association（RBMCDA）scheme and the unscented Kalman filter（UKF）are applied to solve the problems of uncertain association and nonlinear filtering,*** particular,the sensors are assumed to move back and forth *** results show that the filtering algorithm produces reliable position estimates under single and multiple tracking scenarios.

关键词： Bearings-only Tracking Rao-Blackwellized Monte Carlo Data Association Particle Filter Unscented Kalman-Filter

CALIBRATION OF PIEZOELECTriC AE SENSOR SENSITIVITY FOR LONGTITUDINAL WAVE

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CALIBRATION OF PIEZOELECTRIC AE SENSOR SENSITIVITY FOR LONGT...

2010全国压电和声波理论及器件技术研讨会

作者： Ying LI~1,Long-biao HE~2,Hai-jiang ZHU~1 1 School of Information Science & Technology,Beijing university of Chemical technology, Chaoyang District,Beijing 100029,China 2 division of Mechanics and Acoustics,National Institute of Metrology,Chaoyang District,Beijing 100013,China

Acoustic Emission(AE) technology has been applied widely in petrochemical industry,material testing, aerospace engineering and other fields,and AE sensor is an indispensable component used to collect information in AE *** AE sensors are piezoelectric *** calibration of piezoelectric AE sensors is the premise of AE quantitative *** wave sensitivity is an important indicator when AE testing technology is applied in thick-walked vessel and large concrete *** paper establishes comparison and reciprocity methods to research the calibration of piezoelectric AE sensor for longitude *** the comparison calibration,laser interferometer is used to measure the normal displacement and velocity on the surface of glass block where AE sensor was *** velocity is considered as the referenced velocity of the AE *** the output voltage of the AE sensor with the same simulation is ***,the sensitivity of the AE sensor can be *** the reciprocity calibration,a block of steel is considered as propagation *** sensors used to send and receive acoustic signal respectively are fixed on opposed sides of the *** computer controls the signal generator to send pulse signal to the transmitter and controls oscillograph to acquire electric signal of the ***,sensitivities of different frequency can be *** results of the two methods show that the frequency responses of sensitivities for longitudinal wave are almost *** there are some differences in amplitude between the two ***,the amplitudes fluctuate widely in adjacent *** reason of these phenomena will be the focus in future research.

关键词： AE sensor sensitivity longitudinal wave Comparison method Reciprocity method

基于Matlab/Simulink的飞艇全数字仿真系统

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系统仿真学报 2009年第9期21卷 2658-2661页

作者：苗景刚周江华杨新中国科学院空间科学与应用研究中心北京100080 中国科学院研究生院北京100080 中国科学院光电研究院北京100080

对飞艇仿真平台的功能模块进行了的划分和描述,构建了仿真系统的框架。在Matlab/Simulink环境下建立了某千立方米平流层验证飞艇的全数字仿真平台。利用该平台可以进行动力学分析、飞行控制、航迹规划不同的仿真任务,同时模块划分相对独... 详细信息

对飞艇仿真平台的功能模块进行了的划分和描述,构建了仿真系统的框架。在Matlab/Simulink环境下建立了某千立方米平流层验证飞艇的全数字仿真平台。利用该平台可以进行动力学分析、飞行控制、航迹规划不同的仿真任务,同时模块划分相对独立,有较好的复用性,可作为飞艇类飞行器的通用仿真平台。

关键词：平流层飞艇飞行控制 Simulink 数字仿真

Scoping out the future:The application of artificial intelligence to gastrointestinal endoscopy

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World Journal of Gastrointestinal Oncology 2022年第5期14卷 989-1001页

作者： Scott B Minchenberg Trent Walradt Jeremy R Glissen brown Department of Internal Medicine Beth Israel Deaconess Medical CenterBostonMA 02130United States division of Gastroenterology Beth Israel Deaconess Medical CenterBostonMA 02130United States

Artificial intelligence(AI)is a quickly expanding field in gastrointestinal *** there are a myriad of applications of AI ranging from identification of bleeding to predicting outcomes in patients with inflammatory bowel disease,a great deal of research has focused on the identification and classification of gastrointestinal *** of the initial randomized,prospective trials utilizing AI in clinical medicine have centered on polyp detection during screening *** addition to work focused on colorectal cancer,AI systems have also been applied to gastric,esophageal,pancreatic,and liver *** promising results in initial studies,the generalizability of most of these AI systems have not yet been *** this article we review recent developments in the field of AI applied to gastrointestinal oncology.

关键词： Artificial intelligence Oncology Gastroenterology Endoscopy Machine learning Computer-assisted decision making Computer-aided detection Computer-aided diagnosis

The Less Invasive Stabilization System in the Treatment of Complex Proximal Femoral Fractures

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The Less Invasive Stabilization System in the Treatment of C...

中华医学会第八届骨科学术会议暨第一届国际COA学术大会

作者： Fang ZHOU Zhi Shan ZHANG Yun HAN Hong Quan JI Orthopedic Department Trauma division Peking university Third Hospital

＜正＞Despite improved techniques and devices, failure of fixation is still a problem in unstable proximal femoral fractures, which still is a challenge to orthopedic trauma surgeon. Minimally invasive surgery has gained popularity in modern orthopedic trauma, but little has been applied on the treatment of proximal femoral fractures. As a new fixation technique, there

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韩国食用菌生产的现状及前景(英文)

安徽农业大学学报 1999年第3期26卷 3-9页

作者： Kim Gwang po (applied Microbiology division, National Institute of Agricultural Science and Technology, RDA, Suweon 441 707, Korea)

韩国位于中温带，年降雨量１３００ｍｍ，平均温度１０～２０℃，这种特异气候条件适于野生蘑菇的大量生长。商业化生产中，侧耳菌（虫豪蘑）占总产量的６４．５％，为９０００农民创造产值７５６８０Ｍ／Ｔ。韩国目前有１６种侧耳菌菌... 详细信息

韩国位于中温带，年降雨量１３００ｍｍ，平均温度１０～２０℃，这种特异气候条件适于野生蘑菇的大量生长。商业化生产中，侧耳菌（虫豪蘑）占总产量的６４．５％，为９０００农民创造产值７５６８０Ｍ／Ｔ。韩国目前有１６种侧耳菌菌株适宜于农民种植。生产者同消费者一样倾向于喜爱灰色或深色的子实体，而不是白色的。用稻草培养的伞菌是种植的第二大类食用菌，占总产量的１３．７％。乳色钮扣状蘑菇还有小规模的种植，用松树原木培养的香菇占总产量的３．２％。这些蘑菇在国内或世界市场鲜食、干食均可。瓶装锯末培养的金针菇、北风菌、叶苓及柱盖菌占总产量的１７．２％。瓶装生产的优势是自动化、产量计划的可能性。除了这些食用蘑菇，医用真菌如灵芝、天麻、茯苓等其他经济真菌在韩国也有较大的生产规模。

关键词：食用菌药用真菌种类生产规模韩国