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国内二语教师口头纠错反馈实证研究25年——一项准元分析

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外语教学理论与实践 2017年第3期 64-71页

作者：王伟清湘潭大学

本文借助元分析的方法,以国内外语类和对外汉语类核心期刊刊登的研究报告为一手资料,分析1990年1月至2015年9月我国学者对二语教师口头纠错反馈的实证研究,并着重考察实验条件下的研究概况。结果发现:国内二语教师口头纠错反馈实证研究... 详细信息

本文借助元分析的方法,以国内外语类和对外汉语类核心期刊刊登的研究报告为一手资料,分析1990年1月至2015年9月我国学者对二语教师口头纠错反馈的实证研究,并着重考察实验条件下的研究概况。结果发现:国内二语教师口头纠错反馈实证研究的方法和内容均发生了重大变化;实验条件下的研究发展迅速,但在研究对象的选择、具体反馈类型的探讨、延时后测的时间、反馈效果的发现等方面都还存在一些问题。

关键词：口头纠错反馈实证研究元分析

基于混频数据驱动神经网络模型的波动率预测研究

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系统工程理论与实践 2023年第12期43卷 3488-3504页

作者：汪刘凯张小波闫相斌王未卿北京科技大学经济管理学院北京100083 广东外语外贸大学商学院广州510420

金融市场价值波动与经济政策等宏观环境密切相关,其影响要素多源,价值波动往往表现出复杂的统计特征与变化规律,现有的波动率预测模型难以有效地预测其价值波动规律.面对价值波动中风险要素多源、频率多样、关系非线性的潜在挑战,考虑... 详细信息

金融市场价值波动与经济政策等宏观环境密切相关,其影响要素多源,价值波动往往表现出复杂的统计特征与变化规律,现有的波动率预测模型难以有效地预测其价值波动规律.面对价值波动中风险要素多源、频率多样、关系非线性的潜在挑战,考虑到深度学习框架下CNN和LSTM的计算优势,本文提出了基于混频数据反向抽样的CNN-LSTM的波动预测模型:MDNN (mixed frequency data-driven neural network),该模型既有效提取多元时序数据的时空特征、又充分利用混频信息,使其预测能力与泛化能力得到有效提升.选取常见的供应链金融质押物铜、铝和锌作为研究对象,样本外预测结果表明:相比于基准模型,MDNN更加准确、有效地预测出质押物已实现波动率,其稳健性检验也表明实证结论的可靠性.

关键词：已实现波动率混频数据深度学习 MDNN

Association between hemoglobin glycation index and 5-year major adverse cardiovascular events:the REACTION cohort study

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Chinese Medical Journal 2023年第20期136卷 2468-2475页

作者： Yuhan wang Hongzhou Liu Xiaodong Hu Anping wang Anning wang Shaoyang Kang Lingjing Zhang Weijun Gu Jingtao Dou Yiming Mu Kang Chen weiqing wang Zhaohui Lyu Department of Endocrinology The First Medical CenterChinese PLA General HospitalBeijing 100853China Department of Endocrinology The Second Medical Center and National Clinical Research Center for Geriatric DiseasesChinese PLA General HospitalBeijing 100853China Department of Endocrinology Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai Institute of Endocrine and Metabolic DiseasesShanghai 200025China

Background:The hemoglobin glycation index(HGI)was developed to quantify glucose metabolism and individual differences and proved to be a robust measure of individual glycosylated hemoglobin(HbA1c)***,we aimed to explore the relationship between different HGIs and the risk of 5-year major adverse cardiovascular events(MACEs)by performing a large multicenter cohort study in ***:A total of 9791 subjects from the Risk Evaluation of Cancers in Chinese Diabetic Individuals:a Longitudinal Study(the REACTION study)were divided into five subgroups(Q1-Q5)with the HGI quantiles(≤5th,>5th and≤33.3th,>33.3th and≤66.7th,>66.7th and≤95th,and>95th percentile).A multivariate logistic regression model constructed by the restricted cubic spline method was used to evaluate the relationship between the HGI and the 5-year MACE *** analysis between the HGI and covariates were explored to detect differences among the five ***:The total 5-year MACE rate in the nationwide cohort was 6.87%(673/9791).Restricted cubic spline analysis suggested a U-shaped correlation between the HGI values and MACE risk after adjustment for cardiovascular risk factors(x^(2)=29.5,P0.82 showed odds ratios(ORs)for MACE of 1.471(95%confidence interval[CI],1.027-2.069)and 2.222(95%CI,1.641-3.026)compared to subjects with HGIs of>-0.75 and≤-*** the subgroup with non-coronary heart disease,the risk of MACE was significantly higher in subjects with HGIs≤-0.75(OR,1.540[1.039-2.234];P=0.027)and>0.82(OR,2.022[1.392-2.890];P0.82 after adjustment for potential ***:We found a U-shaped correlation between the HGI values and the risk of 5-year *** low and high HGIs were associated with an increased risk of ***,the HGI may predict the 5-year MACE risk.

关键词： Diabetes mellitus Hemoglobin glycation index Major adverse cardiovascular events Blood glucose Metabolism Ushaped correlation

Perioperative treatment of liver transplantation

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Discussion of Clinical Cases 2014年第1期1卷 12-18页

作者： Shengbin Zhang Rui Liu Shipeng Song weiqing wang Jin Zhao Xiaoshi Dong The Third Affiliated Hospital of Inner Mongolia Medical University HohhotChina

A case of liver transplantation in the department of general surgery of the third affiliated hospital of Inner Mongolia medical school was collected and analyzed on the basis of diagnosis,physical examination and *** transplantation was very complicated,accompanied by various postoperative *** this paper aims to share experience of perioperative management of liver transplantation among physicians.

关键词： Liver transplantation Perioperative treatment Perioperative management

早期应用二甲双胍联合沙格列汀治疗改善2型糖尿病的管理

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中华内分泌代谢杂志 2016年第4期32卷 346-348页

作者：王卫庆上海交通大学医学院附属瑞金医院内分泌代谢病科 200025

2型糖尿病患者早期应用二甲双胍联合沙格列汀，较二甲双胍单药可明显改善2型糖尿病的血糖控制，且不增加不良反应。沙格列汀／二甲双胍缓释剂复方制剂在保持两药联用疗效优势的同时，又减少了服药的次数．提高了用药依从性。我们相信这... 详细信息

2型糖尿病患者早期应用二甲双胍联合沙格列汀，较二甲双胍单药可明显改善2型糖尿病的血糖控制，且不增加不良反应。沙格列汀／二甲双胍缓释剂复方制剂在保持两药联用疗效优势的同时，又减少了服药的次数．提高了用药依从性。我们相信这个药物将使更多的中国2型糖尿病患者获益。

关键词：糖尿病,2型二甲双胍沙格列汀固定剂量复合制剂

Successful treatment of severe burn patients with multiple organ dysfunction syndrome:A case report

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Discussion of Clinical Cases 2014年第1期1卷 1-11页

作者： Lingfeng wang Ling-feng wang Yongdong Li Xiyuan Xu Ji Chen weiqing wang Zaiqing Huang Lihua Zhang Inner Mongolia Institute of Burns The Third Affiliated Hospital of Inner Mongolia Medical UniversityHohhotChina

Multiple organ dysfunction syndrome is the presence of altered organ function of two or more organ systems in acute ill patients with severe trauma,burn,shock and *** this case,the patient with burn area amounted to 95%and the third-degree burn was up to 90%.He underwent gastrointestinal tract,blood clotting,lung,brain,heart,liver dysfunction,and cardiac arrest for 30 minutes during the courses of treatment,and was discharged from the hospital after 108 days on the basis of comprehensive treatment and repeated skin grafting.

关键词： Multiple organ dysfunction syndrome Burns Clinical

Study on chemical composition of Viscum coloratum and its HPLC fingerprint in different harvest periods

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Asian Journal of Traditional Medicines 2020年第4期15卷 172-185页

作者： Ruizhen Zhang weiqing wang Rong Duan Rong Rong Zhiguo Yu Yunli Zhao Department of Pharmaceutical Analysis School of PharmacyShenyang Pharmaceutical UniversityShenyangChina

The purpose of this study was to evaluate the similarity of chemical profile of Viscum loloratum harvested in different months using high performance liquid chromatography(HPLC)fingerprint and multivariate statistical analysis,and to determine the optimal harvest time of Viscum coloratum.8 compounds were isolated from Viscum coloratum by a variety of isolation techniques,3 of which were isolated from the genus Viscum *** the first *** fingerprint of Viscum coloratum was established by HPLC,and 16 common peaks were obtained,4 of which were identified by comparison with the reference *** showed that the Viscum coloratum harvested in 6 months could be roughly divided into three groups based on the chemical profiles,and the Viscum coloratum harvested in January had higher levels of the marked *** HPLC fingerprint objectively reveals the characteristics of Viscum coloratum harvested in different months,which can be used to evaluate and control the quality of Viscum coloratum harvested in different months.

关键词： Viscum coloratum quality control harvest period fingerprint chemical composition

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大型直驱永磁风力发电机及其并网运行研究

太阳能学报 2008年第4期29卷 412-416页

作者：张新燕王维庆西安交通大学电气工程学院新疆大学电气工程学院乌鲁木齐830008

为了研究大型直驱式永磁风力发电机控制及其并网后在电力系统中的运行,建立了风速模型、发电机模型,对直驱式永磁风力发电机的工作原理进行了研究,对风力发电机接入电网运行进行了分析,并对最大功率跟踪和桨距角控制进行了研究。采用理... 详细信息

为了研究大型直驱式永磁风力发电机控制及其并网后在电力系统中的运行,建立了风速模型、发电机模型,对直驱式永磁风力发电机的工作原理进行了研究,对风力发电机接入电网运行进行了分析,并对最大功率跟踪和桨距角控制进行了研究。采用理论分析与计算机仿真方法,给出了仿真结果。结果表明,直驱永磁风力发电机在低于额定风速时可以跟踪最大功率,高于额定风速时可以保持额定功率;直驱式永磁风力机对故障电流无贡献,对电网谐波影响很小,几乎不存在闪变问题,对电网频率稳定性无贡献。

关键词：直驱永磁风力发电机控制并网仿真

Structural characteristics of continental carbonate-rich shale and shale oil movability: A case study of the Paleogene Shahejie Formation shale in Jiyang Depression, Bohai Bay Basin, China

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Petroleum Exploration and Development 2023年第6期50卷 1320-1332页

作者： LIU Huimin BAO Youshu ZHANG Shouchun LI Zheng LI Junliang wang Xuejun WU Lianbo wang Yong wang weiqing ZHU Rifang ZHANG Shun wang Xin Sinopec Shengli Oilfield Company Dongying 257001China Research Institute of Exploration and Development Sinopec Shengli Oilfield CompanyDongying 257015China

Based on rock mineral and geochemical analysis, microscopic observation, physical property measurement, and thin laminae separation test, etc., the characteristics of typical laminae of the Paleogene Shahejie Formation carbonate-rich shale in the Jiyang Depression were analyzed, and the organic matter abundance, reservoir properties, and oil-bearing properties of different laminae were compared. Typical shale storage-seepage structures were classified, and the mobility of oil in different types of shale storage-seepage structure was compared. The results show that the repeated superposition of mud laminae and calcite laminae are the main layer structure of carbonate-rich shales. The calcite laminae are divided into micritic calcite laminae, sparry calcite laminae and fibrous calcite vein. The mud-rich laminae are the main contributor to the organic matter abundance and porosity of shale, with the best hydrocarbon generation potential, reservoir capacity, and oil-bearing property. The micritic calcite laminae also have relatively good hydrocarbon generation potential, reservoir capacity and oil-bearing property. The sparry calcite laminae and fibrous calcite vein have good permeability and conductivity. Four types of shale storage-seepage structure are developed in the carbonate-rich shale, and the mobility of oil in each type of storage-seepage structure is in descending order: sparry calcite laminae enriched shale storage-seepage structure, mixed calcite laminae enriched shale storage-seepage structure, fibrous calcite vein enriched shale storage-seepage structure, and micritic calcite laminae enriched shale storage-seepage structure. The exploration targets of carbonate-rich shale in the Jiyang Depression Shahejie Formation are different in terms of storage-seepage structure at different thermal evolution stages.

关键词： shale oil carbonate-rich shale shale fabric storage-seepage structure shale oil movability Paleogene Shahejie Formation Jiyang Depression Bohai Bay Basin