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A data-driven method for syndrome type identification and classification in traditional Chinese medicine

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Journal of Integrative Medicine 2017年第2期15卷 110-123页

作者： Nevin Lianwen Zhang Chen Fu Teng Fei Liu bao-xin Chen Kin Man Poon Pei Xian Chen Yun-ling Zhang Department of Computer Science and Engineering the Hong Kong University of Science and Technology Department of Neurology Dongfang HospitalBeijing University of Chinese Medicine Department of Mathematics and Information Technology the Education University of Hong Kong

The efficacy of traditional Chinese medicine （TCM） treatments for Western medicine （WM） diseases relies heavily on the proper classification of patients into TCM syndrome types. The authors developed a data-driven method for solving the classification problem, where syndrome types were identified and quantified based on statistical patterns detected in unlabeled symptom survey data. The new method is a generalization of latent class analysis （LCA）, which has been widely applied in WM research to solve a similar problem, i.e., to identify subtypes of a patient population in the absence of a gold standard. A well-known weakness of LCA is that it makes an unrealistically strong independence assumption. The authors relaxed the assumption by first detecting symptom co-occurrence patterns from survey data and used those statistical patterns instead of the symptoms as features for LCA. This new method consists of six steps： data collection, symptom co-occurrence pattern discovery, statistical pattern interpretation, syndrome identification, syndrome type identification and syndrome type classification. A software package called Lantern has been developed to support the application of the method. The method was illustrated using a data set on vascular mild cognitive impairment.

关键词： medicine, Chinese traditional syndrome syndrome classification latent tree analysis symptomco-occurrence patterns patient clustering stand syndrome differentiation

Interpreting sedimentation dynamics at Longxi catchment in the Three Gorges Area,China,using Cs-137 activity,particle size and rainfall erosivity

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Journal of Mountain Science 2016年第5期13卷 857-869页

作者： GAO Jin-zhang LONG Yi ZHANG xin-bao Collins Adrian L HE Xiu-bin ZHANG Yun-qi SHI Zhong-lin Key Laboratory of Mountain Surface Processes and Ecological Regulation Institute of Mountain Hazards and EnvironmentChinese Academy of SciencesChengdu 610041China University of Chinese Academy of Sciences Beijing 100049China Sustainable Soils and Grassland Systems Department Rothamsted ResearchNorth WykeOkehamptonDevon EX20 2SBUK Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection Linyi UniversityLinyi 276005China

Reservoir sedimentation dynamics were interpreted using Cs-137 activity, particle size and rainfall erosivity analysis in conjunetion with sediment profile coring. Two sediment cores were retrieved from the Changshou reservoir of Chongqing, which was dammed in 1956 at the outlet of Longxi catchment in the Three Gorges Area using a gravity corer equipped with an aerylie tube with an inner diameter of 6 em. The extracted cores were sectioned at 2 cm intervals. All sediment core samples were dried, sieved （〈2 mm） and weighed. 137Cs activity was measured by y-ray spectrometry. The particle size of the core samples was measured using laser particle size granulometry. Rainfall erosivity was calculated using daily rainfall data from meteorological records and information on soil conservation history was collated to help interpret temporal sedimentation trends. The peak fallout of 137Cs in 1963 appeared at a depth of 84 cm in core A and 56 cm in core B. The peaks of sand contents were related to the peaks of rainfall erosivity which were recorded in 1982, 1989, 1998 and 2005, respectively. Sedimentation rates were calculated according to the sediment profile chronological controls of 1956, 1963, 1982, 1989, 1998 and 2oo5. The highest sedimentation rate was around 2.0 cm·a^-1 between 1982 and 1988 when the Chinese national reform and the Household Responsibility System were implemented, leading to accelerated soil erosion in the Longxi catchment. Since 1990s, and particularly since 2005, sedimentation rates clearly decreased, since a number of soil conservation programs have been carried out in the catchment. The combined use of ^137Cs chronology, particle size and rainfall erosivity provided a simple basis for reconstructing reservoir sedimentation dynamics in the context of both physical processes and soil restoration. Its advantages include avoiding the need for full blown sediment yield reconstruction and the concomitant consideration of core correlation and corrections

关键词： Sedimentation Cesium-137 Particle size Rainfall erosivity Soil erosion Three Gorges Area

Accuracy of auditory evoked potential index in monitoring anesthetic depth during isoflurane anesthesia

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中华麻醉学杂志 2010年第B2期30卷 58-60页

作者： LIN Quan-yang MA bao-xin SHEN Wei ZHENG Qing-qi ZHANG Jin Department of Anesthesiology Zhongshan Hospital Xiamen UniversityXiamen 361004 China

Unexplained hyperammonemia and encephalopathy in the emergency department:Abernethy malformation in elderly patients

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World Journal of Emergency Medicine 2023年第1期14卷 69-71页

作者： Yan-ying Gao Qing Tang Yan-cun Liu Xiao-he Liu bao-xin Qian Yan-fen Chai Li-jun Wang Department of Hepatology the Third Central Hospital of TianjinTianjin Institute of Hepatobiliary DiseaseTianjin 300170China Department of Emergency Medicine Tianjin Medical University General HospitalTianjin 300052China

Congenital extrahepatic portosystemic shunt(CEPS),also known as Abernethy malformation,is a rare disorder characterized by the partial or complete diversion of portal blood into systemic *** is classified into two types:typeⅠis an end-to-side portocaval shunt,whereas typeⅡis a side-to-side shunt,diverting blood from the portal vein to the inferior vena cava(IVC)(Figure 1).[1]

关键词： malformation shunt patients

A comparative study on three EOF analysis techniques using decades of Arctic sea-ice concentration data

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Journal of Central South University 2015年第7期22卷 2681-2690页

作者：陈新保刘信陶李松年 Chow Annie National-Local Joint Engineering Laboratory of Geospatial Information Technology(Hunan University of Science and Technology) Key Lab of Virtual Geographic Environment from Ministry of Education(Nanjing Normal University) Department of Civil Engineering Ryerson University Environment Applied Science and Management Ryerson University

Change in Arctic sea ice extent is one of the indicators of global climate changes. Spatio-temporal change and change patterns can be identified using various methods to facilitate human understanding global climate changes. Three empirical orthogonal function(EOF) techniques are discussed and applied to decades of sea-ice concentration(SIC) dataset in Arctic area for identifying independent patterns. It was found that: 1) discrepancies exist in magnitude and scope for each EOF pattern, however, the first two leading EOFs of variability possess high similarities in structure and shape; 2) Even though there are somewhat differences in amplitude of each PC mode, the first two leading PC modes maintain consistent in overall trend and periodicity; 3) There are significant discrepancies and inconsistencies in the third and fourth leading EOF and PC modes. The accuracies of three techniques are further validated in representing the physical phenomena of SIC anomaly patterns.

关键词： empirical orthogonal functions sea-ice concentration comparative study patterns arctic

Mechanical properties of thermoelectric generators

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Journal of Materials Science & Technology 2023年第17期148卷 64-74页

作者： xin bao Shuaihang Hou Zhixin Wu Xiaodong Wang Li Yin Yijie Liu Huolun He Sichen Duan baolin Wang Jun Mao Feng Cao Qian Zhang School of Materials Science and Engineering and Institute of Materials Genome&Big DataHarbin Institute of TechnologyShenzhen518055China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbin150001China School of Science Harbin Institute of TechnologyShenzhen518055China

To satisfy the requirements of practical applications,thermoelectric generators should be highly efficient and mechanically ***,progress in designing high-performance thermoelectric generators has been ***,the mechanical properties of thermoelectric generators are still *** this review,studies on the mechanical properties of thermoelectric generators are *** me-chanical properties of bulk thermoelectric generators will be first *** this section,the mechan-ical properties of thermoelectric materials and the strategies for improving their mechanical properties are *** the device’s failure usually occurs at the interface between the thermoelectric ma-terials and electrode,the joint strength of electrodes and thermoelectric materials will be *** that,the mechanical properties of the inorganic thin-film thermoelectric devices will be *** the figure of merit for the flexibility of thermoelectric materials depends on the film thickness,elastic modulus,and yield strength,the synthesis methods of thin-film thermoelectric materials will be ***,this review will be concluded with a discussion on flexible organic thermoelectric de-vices and flexible devices using bulk legs.

关键词： Thermoelectric generator Mechanical properties Interface Joint strength

Heavy Metal Accumulation in Plants on Mn Mine Tailings

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Pedosphere 2006年第1期16卷 131-136页

作者： LIU Yun-Guo ZHANG Hui-Zhi ZENG Guang-Ming HUANG bao-Rong LI xin College of Environmental Science and Engineering Hunan University Changsha 410082 （China）. Institute of Soil Science Chinese Academy of Sciences Nanjing 210008 （China）

The Xiangtan Manganese (Mn) Mine in the middle of Hunan Province, China, has been mined since 1913 with mine tailings including excavated wastes, wastewater, and smelting wastes. A survey was conducted on the Mn mine tailing soils and eight plants on the Mn mine tailings. The concentrations of soil Mn, Pb, and Cd and the metal-enrichment traits of these eight plants were analyzed simultaneously. Exceptionally high concentrations of these three metals were found in the soils, especially on the tailing dam. Each plant investigated in this study accumulated the three heavy metals, but no hyperaccumulator of these metals was found. However, analysis indicated that Poa pratensis Linn., Gnaphalium affine D. Don, Pteris vittata L., Conyza canadensis (L.) Cronq., and Phytolacca acinosa Roxb. possessed specially good metal-enrichment and metal-tolerant traits. P. pratensis, G. affine, and P. vittata were Pb-tolerant plants; and C. canadensis, P. pratensis, and G. affine were Cd-tolerant plants. P. acinosa had a great tolerance to Mn. and it was a valuable plant for on-site phytoremediation. Phragmites communis Trin. was found to have high metal tolerance and economic benefit as a raw material for paper and should be considered for soil remediation. G. affine and C. canadensis had excessive accumulation of Mn and could be useful in phytoremediation. However, although P. pratensis was a good accumulator, it was not a suitable plant for soil remediation because its biomass was too little.

关键词： heavy metal metal-tolerant plant Mn mine tailings phytoremediation soil

表面应力效应调控钯纳米晶二氧化碳电催化还原性能

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物理化学学报 2017年第4期33卷 651-652页

作者：包信和中国科学院大连化学物理研究所催化基础国家重点实验室辽宁大连116023

目前，与人们日常生活密切相关的液体燃料、化学品、电和热等主要依赖石油、煤和天然气等化石能源经过工业炼制或高效燃烧等过程转化。在转化过程中二氧化碳的大量排放对人们赖以生存的生态环境造成了严重威胁。电催化还原二氧化碳提供... 详细信息

目前，与人们日常生活密切相关的液体燃料、化学品、电和热等主要依赖石油、煤和天然气等化石能源经过工业炼制或高效燃烧等过程转化。在转化过程中二氧化碳的大量排放对人们赖以生存的生态环境造成了严重威胁。电催化还原二氧化碳提供了一条将作为排放物的CO2高效转变为高值化学品新途径。简单地说，

关键词：电催化还原二氧化碳还原性能应力效应纳米晶调控表面转化过程

A Controlled Study on Comparing Differences in CT Perfusion Imaging between Rabbits inoculated with VX2 Lung Tumor and Patients with Squamous Cell Carcinoma of the Lung

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Clinical oncology and cancer researeh 2010年第6期7卷 366-372页

作者： Qiang ZHANG Qi-bao SHI Zhao-xin LIU Ming-min ZHANG Department of Radiology Inner Mongolia Baotou Tumor Hospital Baotou 014030 Inner Mongolia Autonomous Region China.

OBJECTIVE By analysis and evaluation of the perfusion images and perfusion parameters of the rabbits with VX2 lung tumor, the association between the perfusion parameters and tumor angiogenesis of patients with squamous cell carcinoma of the lung has been studied in order to establish a non-invasive and effective way to detect tumor blood supply, which is be able to exhibit hemodynamic data in tumors during cancer treatments. METHODS Fifteen Netherlands rabbits inoculated with VX2 lung tumor （rabbit group） and 25 patients with squamous cell carcinoma of the lung （patient group） received a multi-slice spiral CT perfusion imaging test using the Netherlands PHILIPS Brilliance 16-slice spiral CT and a U.S. MEDRAD binocular highpressure syringe. Image postprocessing was done using the special perfusion software and EBW 4.0 Workstation. Perfusion volume （PV）, peak enhanced increment （PEI）, transit time peak （TTP）, and blood volume （BV） were measured and analyzed. RESULTS In the rabbit group, the values of the PV, PEI, TTP, and BV of the tumor margin were （53.89 ± 13.38） mL/（***）, （45.71 ± 15.52） Hu, （39.29 ± 10.10） sec, and （31.45 ± 18.19） mL/100 g, respectively; these values of the tumor center were （36.57 ± 14.17） mL/（***）, （28.64 ± 11.74） Hu, （39.00 ＋ 9.78） sec, and （19.76 ± 13.95） mL/100 g, respectively; the values of the muscles were （12.45± 4.38） mL/（***）, （10.98 ± 5.03） Hu, （38.86 ± 10.04） sec, and （5.38 ±2.87） mL/100 g, respectively. The values of the relative perfusion volume （RPV）, relative peak enhanced increment （RPEI）, and relative blood volume （RBV） of the tumor margin were 4.38 ± 1.45, 3.96± 1.45, 9.99 ± 11.7, respectively; these values of the tumor center were 2.14 ± 1.08, 1.83±1.45, 4.17 ±3.39, respectively. The values of the PV, PEL BV of the tumor margin vs. the values of the muscles developed t-values, which were 15.028, 10.79, and 5.88, respectively （P ≤ 0.01）, with statistical significance; the values of the PV, PEI, BV of the tumor center v

关键词： perfusion imaging lung neoplasms controlled study.