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Rapid Syntheses of Benzyl Acetate Under Microwave Irradiation

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Chemical Research in Chinese Universities 1994年第2期10卷 159-162页

作者： JIANG Yu-Iin yuan yun-cheng and SUN Yue-hua (School of Chemical Engineering, Dalian University of Technology, Dalian, 116012)

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关键词： Benzyl acetate Rapid syntheses Microwave irradiation Phase trans-fer catalyst

Mineralization of the Liwu large-scale stratiform copper deposits in Sichuan Province, China: Constraints from fluid inclusions

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China Geology 2023年第2期6卷 252-268页

作者： Hua-yun yuan Qing Zhou yuan-bao Song Wei Zhang Hui-hua Zhang Tong-zhu Li Tao Yin Chang-nan Wang Gao-lin Tang Evaluation and Utilization of Strategic Rare Metals and Rare Earth Resource Key Laboratory of Sichuan Province Sichuan Geological SurveyChengdu 610081China Chengdu Center China Geological SurveyMinistry of Natural ResourcesChengdu 610081China Sichuan Liwu Copper Mining Company Ganzi 626200China

The Liwu stratiform copper deposit is located in the northwestern Jianglang dome,western *** studies mainly focus on the genetic type and mineralization of this *** fluid inclusion characteristics of metallogenic period quartz veins were studied to reveal the ore-forming fluid *** Raman analysis indicates that the ore-forming fluids is a H_(2)O-NaCl-CH_(4)(-CO_(2))*** inclusions microthermometry shows a homogenization temperature of 181-375°C and a salinity of 5.26%-16.99%for the disseminated-banded Cu-Zn mineralization;but a homogenization temperature of 142-343°C and a salinity of 5.41%-21.19%for the massive-veined Cu-Zn *** features suggest a medium-high temperature and a medium salinity for the ore-forming fluids.H-O isotopic data indicates that the ore-forming fluids were mainly from the metamorphic and magmatic water,plus minor formation *** sulfur isotopic data indicates that sulfur was mainly derived from the formation and magmatic *** of the disseminated-banded mineralization was mainly correlated with fluid mixing and water-rock reaction;whereas that of the massive-veined mineralization was mainly correlated with fluid *** genetic type of the deposit is a medium-high temperature hydrothermal deposit related to magmatism and controlled by shear *** study is beneficial to understand the stratiform copper deposit.

关键词： Stratiform copper deposit Mineralization Fluid inclusion H-O isotopes Hydrothermal deposit Dome structure Middle Proterozoic metamorphic rock Mineral exploration engineering Sichuan Province

Super-resolution reconstruction and higher-degree function deformation model based matching for Chang’E-1 lunar images

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Science China(Technological Sciences) 2009年第3期52卷 3468-3476页

作者： LI LiChun YU QiFeng yuan yun SHANG Yang LU HongWei SUN XiangYi College of Aerospace and Material Engineering National University of Defense TechnologyChangsha 410073China The Equipment Research Institute of PLA’s Second Artillery Beijing 10085China

This article intends to solve the matching problem of 2C level lunar images by Chang’E-1(CE-1)lunar probe satellite.A line-scanner image matching method is proposed which represents deformation by the quadric function along the camera motion direction and bases on the deformation model for a relief terrain’s imaging on sensors of the satellite borne three-line scanner camera.A precise matching is carried out for the normal view,the frontward view,and the backward view images of the CE-1 by combining the proposed method with the standard correlation method.A super-resolution(SR)reconstruction algorithm based on the wavelet interpolation of non-uniformly sampled data is also adopted to realize SR reconstruction of CE-1 lunar images,which adds the recognizable targets and explores CE-1 lunar images to the full.

关键词： image matching 3-line-scanner quadric function deformation super resolution Chang’E-1 lunar image

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大靶面探测光幕灵敏度分析与修正

红外与激光工程 2018年第6期47卷 98-103页

作者：袁云田会西安工业大学光电工程学院陕西西安710021

为了解决室内10 m×10 m大靶面探测光幕灵敏度分布不均匀的问题,研究了镜头光幕探测传感器灵敏度分布规律。依据镜头式光度学理论,分析了影响光幕探测灵敏度的主要因素,建立探测灵敏度数学模型,获得幕面内不同位置的弹丸过幕信号幅值变... 详细信息

为了解决室内10 m×10 m大靶面探测光幕灵敏度分布不均匀的问题,研究了镜头光幕探测传感器灵敏度分布规律。依据镜头式光度学理论,分析了影响光幕探测灵敏度的主要因素,建立探测灵敏度数学模型,获得幕面内不同位置的弹丸过幕信号幅值变化趋势。最终提出了灵敏度修正方案,通过改变光幕靶不同位置光源的发光亮度,来实现探测幕面内灵敏度分布均匀化。修正后的探测光幕采用气枪弹验证可知,灵敏度能满足大靶面灵敏度均匀化要求。

关键词：弹丸速度测量大靶面探测光幕 L形光源灵敏度修正

Hydrogen inhalation promotes recovery of a patient in persistent vegetative state from intracerebral hemorrhage:A case report and literature review

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World Journal of Clinical Cases 2022年第4期10卷 1311-1319页

作者： Yan Huang Feng-Ming Xiao Wen-Jie Tang Jing Qiao Hai-Feng Wei yuan-yun Xie You-Zhen Wei Department of Rehabilitation Qilu Children’s Hospital of Shandong UniversityJinan 250022Shandong ProvinceChina Research Center for Translational Medicine&Key Laboratory of Arrhythmias of the Ministry of Education of China Shanghai East HospitalTongji University School of MedicineShanghai 200120Shanghai ProvinceChina Department of Pediatrics Shanghai East HospitalTongji University School of MedicineShanghai 200120Shanghai ProvinceChina Department of Clinical Imaging The First Clinical Medical CollegeShandong University of Traditional Chinese MedicineJinan 250022Shandong ProvinceChina National Clinic and Medicine Research Institute for Geriatric Diseases Gannan Health Promotion and Translational LaboratoryThe First Affiliated HospitalGannan University of Medical SciencesGanzhou 341000Jiangxi ProvinceChina

BACKGROUND Persistent vegetative state(PVS)is a devastating and long-lasting clinical condition with high morbidity and mortality;currently,there are no available effective *** SUMMARY We report the case of an 11-year-old boy with PVS caused by severe intracerebral bleeding in the left hemisphere following anticoagulation *** patient’s PVS severity showed no notable improvement after 2-mo neuroprotective treatment and rehabilitation,including nerve growth factor and baclofen,hyperbaric oxygen,and comprehensive bedside rehabilitation *** inhalation treatment(4-6 h)of high-concentration hydrogen(H2)gas(66.6%H2+33.3%O2)was ***,the patient’s orientation,consciousness,ability to speak,facial expressions,and locomotor function were significantly restored,along with improvements in essential general health status,after H2 gas inhalation treatment,which was consistent with stabilized neuropathology in the left hemisphere and increased Hounsfield unit values of computed tomography in the right *** patient finally recovered to a near normal conscious state with a Coma Recovery Scale-Revised Score of 22 from his previous score of *** Phase 1 clinical trials are needed to explore the safety and efficacy of H2 gas inhalation in patients with PVS.

关键词： Hydrogen gas Intracerebral hemorrhage Consciousness recovery Persistent vegetative state Case report

Interactions of Shear Bands in a Ductile Metallic Glass

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Journal of Iron and Steel Research International 2016年第1期23卷 48-52页

作者： Li-shan HUO Jun-qiang WANG Jun-tao HUO yuan-yun ZHAO He MEN Chun-tao CHANG Xin-min WANG Run-wei LI Key Laboratory of Magnetic Materials and Devices Ningbo Institute of Materials Technology & EngineeringChinese Academy of Sciences Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology Ningbo Institute of Materials Technology & EngineeringChinese Academy of Sciences

Shear bands play a key role in the plastic deformation of metallic glasses（MGs）.Even though there are extensive studies on the initiation and propagation of shear bands,the interactions among them have not been systematically studied *** interactions between the primary shear bands（PSBs）and secondary shear bands（SSBs）in a ductile Zr-based MG were *** residual stress near PSBs can deflect the propagation direction and reduce the propagation velocity of SSBs,which contributes to the plasticity and toughness of the *** was demonstrated that the probability and strength of the interactions between PSBs and SSBs would become stronger for MGs with larger Young′s modulus and smaller shear modulus,i.e.,larger Poisson′s *** results are valuable in understanding the plastic deformation of MGs and may be helpful in designing new MGs with desirable mechanical properties.

关键词： bulk metallic glass shear band interaction plasticity serration

T2 Mapping and Fat Quantification of Thigh Muscles in Children with Duchenne Muscular Dystrophy

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Current Medical Science 2019年第1期39卷 138-145页

作者： Liang YIN Zhi-ying XIE Hai-yan XU Sui-sheng ZHENG Zhao-xia WANG Jiang-xi XIAO yun yuan Department of Radiology Peking University First HospitalBeijing 100034China Department of Neurology Peking University First HospitalBeijing 100034China Department of Radiology Second Affiliated Hospital of Anhui Medical UniversityHefei 230601China

Quantitative magnetic resonance image(MRI)in individual muscles may be useful for monitoring disease progression in Duchenne muscular dystrophy(DMD).The purpose of this study w批to measure丁2 relaxation time of thigh muscles in children with DMD and healthy boys,and to correlate the T2 relaxation time of muscles with the fat fraction(FF)at quantitative magnetic resonance and results of clinical ***-two boys with DMD and 18 healthy boys were evaluated with T2 mapping and three-point Dixon ***,body mass index(BMI),muscle strength assessment,timed functional tests(time to walk or run 10 metres,rise from the floor and ascend four stairs),and the North Star Ambulatory Assessment(NSAA)were ***’s correlation was used to assess the relationships between FF and clinical assessments and T2 relaxation *** mean T2 relaxation time of thigh muscles in DMD was significantly longer than that in the control group(P<0.05),except for the gracilis(P=0.952).The gracilis,sartorius and adductor longus were relatively spared by fatty infiltration in DMD *** T2 relaxation time was correlated significantly with the mean FF in all ***,BMI,total muscle strength score,timed functional tests and NSAA were significantly correlated with the overall mean T2 relaxation time.T2 mapping may prove clinically useful in monitoring muscle changes as a result of the disease process and in predicting the outcome of DMD patients.

关键词： T2 mapping Duchenne muscular dystrophy skeletal muscle fat infiltration

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骨骼肌疾病诊断策略需要不断优化

中华神经科杂志 2016年第10期49卷 745-747页

作者：袁云北京大学第一医院神经内科 100034

骨骼肌疾病是骨骼肌在各种病因的损害性作用下，引起肌纤维破坏或功能障碍为主要病理生理过程的一组疾病。不包括周围神经或血管病变导致的骨骼肌继发性损害。骨骼肌疾病的类型按病因分为获得性和遗传性，获得性骨骼肌疾病主要包括中毒... 详细信息

骨骼肌疾病是骨骼肌在各种病因的损害性作用下，引起肌纤维破坏或功能障碍为主要病理生理过程的一组疾病。不包括周围神经或血管病变导致的骨骼肌继发性损害。骨骼肌疾病的类型按病因分为获得性和遗传性，获得性骨骼肌疾病主要包括中毒性、外伤性和炎症性，后者包括免疫性（皮肌炎、免疫性坏死性肌病、多发性肌炎、重叠肌炎、包涵体肌炎以及罕见类型肌炎）以及感染性。

关键词：骨骼肌疾病诊断策略继发性损害优化病理生理过程坏死性肌病多发性肌炎包涵体肌炎

Comparison and analysis of snow cover data based on dif-ferent definitions of snow cover days

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Research in Cold and Arid Regions 2011年第1期3卷 51-60页

作者： Di An DongLiang Li yun yuan Nanjing University of Information Science ＆ Technology Key Laboratory of Meteorological Disaster of Ministry of EducationNanjing Jiangsu 210044 China Meteorological Bureau of Xuzhou Xuzhou Jiangsu 221000 China

In order to analyze the differences between the two snow cover data, the snow cover data of 884 meteorological stations in China from 1951 to 2005 are counted. The data include days of visual snow observation, snow depth, and snow cover durations, which vary according to different definitions of snow cover days. Two series of data, as defined by ＂snow depth＂ and by ＂weather obser- vation,＂ are investigated here. Our results show that there is no apparent difference between them in east China and the Xinjiang region, but in northeast China and the Tibetan Plateau the ＂weather observation＂ data vary by more than 10 days and the ＂snow depth＂ data vary by 0.4 cm. Especially in the Tibetan Plateau, there are at least 15 more days of＂weather observation＂ snow in most areas （sometimes more than 30 days）. There is an obvious difference in the snow cover data due to bimodal snowfall data in the Tibetan Plateau, which has peak snowfalls from September to October and from .April to May. At those times the temperature is too high for snow cover fol：mation mad only a few days have trace snow cover. Also, the characteristics and changing trends of snow cover are analyzed here based on the snow cover data of nine weather stations iri the northeast region of the Tibetan Plateau, by the Mann-KendaU test. The results show significantly fewer days of snow cover and shorter snow dtwations as defined by ＂snow depth＂ compared to that as defined by ＂weather observation.＂ Mann-Kendall tests of both series of snow cover durations show an abrupt change in 1987.

关键词： weather observation days of snow cover depth of snow durations