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LC3-Ⅱ、Beclin-1水平与脑卒中患者抑郁关联性及交互作用研究
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作者 信征 庞贺香 +1 位作者 李昆 李卓 《中国实验诊断学》 2025年第1期7-11,共5页
目的分析微管相关蛋白轻链3-Ⅱ(LC3-Ⅱ)、Bcl-2相互作用蛋白1(Beclin-1)血清含量与脑卒中患者抑郁的相关性及交互作用的影响。方法选取2021年12月至2023年6月北京市大兴区人民医院97例脑卒中患者,将住院期间发生抑郁者分为抑郁组,其余... 目的分析微管相关蛋白轻链3-Ⅱ(LC3-Ⅱ)、Bcl-2相互作用蛋白1(Beclin-1)血清含量与脑卒中患者抑郁的相关性及交互作用的影响。方法选取2021年12月至2023年6月北京市大兴区人民医院97例脑卒中患者,将住院期间发生抑郁者分为抑郁组,其余评定为非抑郁组。统计受检者LC3-Ⅱ、Beclin-1水平等信息,比较抑郁组、非抑郁组LC3-Ⅱ、Beclin-1表达,并分析脑卒中患者抑郁影响因素及LC3-Ⅱ、Beclin-1的交互作用对脑卒中患者抑郁情况的影响、LC3-Ⅱ、Beclin-1在脑卒中患者抑郁预测中的价值。结果97例脑卒中患者中30例(30.93%)发生抑郁。抑郁组LC3-Ⅱ、Beclin-1水平较非抑郁组高(P<0.05)。Logistic回归分析证实,NIHSS、LC3-Ⅱ、Beclin-1均为脑卒中后发生抑郁的重要影响因素(P<0.05)。LC3-Ⅱ与Beclin-1均与脑卒中患者抑郁具有正向交互作用,二者交互效应较二者单独作用之和高1.381倍。ROC曲线表明,LC3-Ⅱ、Beclin-1对脑卒中患者抑郁的单独及联合预测AUC分别是0.726、0.720、0.903。结论LC3-Ⅱ、Beclin-1均和脑卒中患者抑郁存在密切关联性,两者在脑卒中患者抑郁中存在正向交互作用,且对脑卒中患者抑郁具有良好的预测效能。 展开更多
关键词 微管相关蛋白轻链3-Ⅱ Bcl-2相互作用蛋白1 脑卒中 抑郁 交互作用
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Rapid improvement in postpartum pulmonary hypertension associated with hereditary hemorrhagic telangiectasia: A case report and review of literature
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作者 Sheng-Yu Hao Yaxiaerjiang Muhetaer +3 位作者 xin zheng Yu-Liang Long Jie-Qiong Song Ming Zhong 《World Journal of Clinical Cases》 2025年第11期40-48,共9页
BACKGROUND Postpartum pulmonary arterial hypertension(PAH)complicated with hereditary hemorrhagic telangiectasia(HHT)is a rare condition.Diagnosing and treating PAH in patients with HHT can be challenging.To the best ... BACKGROUND Postpartum pulmonary arterial hypertension(PAH)complicated with hereditary hemorrhagic telangiectasia(HHT)is a rare condition.Diagnosing and treating PAH in patients with HHT can be challenging.To the best of our knowledge,no previous reports have investigated the efficacy of pulmonary vasodilators in improving hemodynamics in postpartum patients with this disease.CASE SUMMARY In this paper,we report a postpartum case of HHT combined with PAH,pre-senting with worsening dyspnea.Genetic testing revealed that the patient carried a heterozygous variant of activin receptor-like kinase 1.The patient received various treatments,including diuretics,anticoagulants,sildenafil,macitentan,inhalation of nitric oxide,and iloprost.Changes in PaO2/FiO2,pulmonary artery systolic pressure as assessed by echocardiography,and N-terminus pro-brain natriuretic peptide levels suggested that,except for iloprost inhalation,the other treatments appeared to have limited efficacy.CONCLUSION To our knowledge,this is the first report on efficacy of pulmonary vasodilators in postpartum patients with HHT and PAH. 展开更多
关键词 Pulmonary hypertension Hereditary hemorrhagic telangiectasia DYSPNEA POSTPARTUM Iloprost inhalation Case report
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Regulating crystallization and retarding oxidation in Sn-Pb perovskite via 1D cation engineering for high performance all-perovskite tandem solar cells
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作者 Ranran Liu xin zheng +10 位作者 Zaiwei Wang Miaomiao Zeng Chunxiang Lan Shaomin Yang Shangzhi Li Awen Wang Min Li Jing Guo Xuefei Weng Yaoguang Rong Xiong Li 《Journal of Energy Chemistry》 2025年第1期646-652,共7页
All-perovskite tandem solar cells have the potential to surpass the theoretical efficiency limit of single junction solar cells by reducing thermalization losses.However,the challenges encompass the oxidation of Sn^(2... All-perovskite tandem solar cells have the potential to surpass the theoretical efficiency limit of single junction solar cells by reducing thermalization losses.However,the challenges encompass the oxidation of Sn^(2+)to Sn^(4+)and uncontrolled crystallization kinetics in Sn-Pb perovskites,leading to nonradiative recombination and compositional heterogeneity to decrease photovoltaic efficiency and operational stability.Herein,we introduced an ionic liquid additive,1-ethyl-3-methylimidazolium iodide (EMIMI) into Sn-Pb perovskite precursor to form low-dimensional Sn-rich/pure-Sn perovskites at grain boundaries,which mitigates oxidation of Sn^(2+)to Sn^(4+)and regulates the film-forming dynamics of Sn/Pb-based perovskite films.The optimized single-junction Sn-Pb perovskite devices incorporating EMIMI achieved a high efficiency of 22.87%.Furthermore,combined with wide-bandgap perovskite sub-cells in tandem device,we demonstrate 2-terminal all-perovskite tandem solar cells with a power conversion efficiency of 28.34%,achieving improved operational stability. 展开更多
关键词 All-perovskite tandem solar cells Sn-Pb perovskite 1D Regulated crystallization ANTIOXIDATION
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2021版国家卫生城镇标准——病媒生物控制考核指标的特点
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作者 辛正 王东 《中华卫生杀虫药械》 CAS 2024年第5期405-409,共5页
2021版国家卫生城镇标准中病媒生物控制考核指标由2014版的45条缩减为14条,资料评估为主的条款由37条缩减为4条,现场评估为主的条款由8条调整为10条,评估工作导向更为注重现场评估。从资料缩减,底数溯源;拨冗减负,合二为一;生态为轴,关... 2021版国家卫生城镇标准中病媒生物控制考核指标由2014版的45条缩减为14条,资料评估为主的条款由37条缩减为4条,现场评估为主的条款由8条调整为10条,评估工作导向更为注重现场评估。从资料缩减,底数溯源;拨冗减负,合二为一;生态为轴,关注重点;综合评估,注重管理4个方面对其修订原则和考核指标特点进行了解读,提出效果保障、标准精简、基层减负是今后方向。 展开更多
关键词 国家卫生城镇 病媒生物控制 标准
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基于OBE评价的嵌入式系列课程改革与实践
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作者 辛征 梁丽华 +1 位作者 侯传晶 魏莉 《电气电子教学学报》 2024年第2期72-76,共5页
新形势下电子信息领域亟需高端化、多样化嵌入式方面人才,而工程教育认证的OBE理念以其及时反馈、先进性成为高校学生能力培养的重要机制。基于OBE形成性评价机制对嵌入式系列课程存在的问题进行了分析,提出了“3+3”嵌入式系列课程的... 新形势下电子信息领域亟需高端化、多样化嵌入式方面人才,而工程教育认证的OBE理念以其及时反馈、先进性成为高校学生能力培养的重要机制。基于OBE形成性评价机制对嵌入式系列课程存在的问题进行了分析,提出了“3+3”嵌入式系列课程的贯通培养体系,并将递进式协同案例教学方式实践于学生能力培养过程中。实践结果表明,新方法的应用促进了嵌入式系列课程间的贯通与衔接,促进了学生的学习兴趣,增强了学生的实践动手能力。 展开更多
关键词 OBE评价机制 嵌入式 贯通培养 递进式协同案例教学
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数据驱动在“电力系统分析”中的应用探究 被引量:1
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作者 陈立征 曹立霞 +2 位作者 侯传晶 辛征 郑学汉 《电气电子教学学报》 2024年第3期154-157,共4页
针对专业课教学面向高年级本科学生,授课内容具有一定难度,同时高年级学生往往存在学习积极性下降等现状,探索把工科研究的数据驱动理念与专业课教学相融合。以电气专业核心课程“电力系统分析”为例,采用数据分析、数据相关性预测等数... 针对专业课教学面向高年级本科学生,授课内容具有一定难度,同时高年级学生往往存在学习积极性下降等现状,探索把工科研究的数据驱动理念与专业课教学相融合。以电气专业核心课程“电力系统分析”为例,采用数据分析、数据相关性预测等数据驱动手段,克服高年级专业课授课中的难点,使专业课教师在制定教学计划时能够有数据参考与理论支撑,以更好地服务于学生专业素质培养。 展开更多
关键词 专业课教学 数据驱动 数据分析
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Expert consensus on endodontic therapy for patients withsystemic conditions 被引量:1
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作者 xin Xu xin zheng +21 位作者 Fei Lin Qing Yu Benxiang Hou Zhi Chen Xi Wei Lihong Qiu Wenxia Chen Jiyao Li Lili Chen Zuomin Wang Hongkun Wu Zhiyue Lu Jizhi Zhao Yuhong Liang Jin Zhao Yihuai Pan Shuang Pan Xiaoyan Wang Deqin Yang Yanfang Ren Lin Yue Xuedong Zhou 《International Journal of Oral Science》 SCIE CAS CSCD 2024年第3期390-397,共8页
The overall health condition of patients significantly affects the diagnosis, treatment, and prognosis of endodontic diseases. Asystemic consideration of the patient’s overall health along with oral conditions holds ... The overall health condition of patients significantly affects the diagnosis, treatment, and prognosis of endodontic diseases. Asystemic consideration of the patient’s overall health along with oral conditions holds the utmost importance in determining thenecessity and feasibility of endodontic therapy, as well as selecting appropriate therapeutic approaches. This expert consensus is acollaborative effort by specialists from endodontics and clinical physicians across the nation based on the current clinical evidence,aiming to provide general guidance on clinical procedures, improve patient safety and enhance clinical outcomes of endodontictherapy in patients with compromised overall health. 展开更多
关键词 PATIENTS DIAGNOSIS PROGNOSIS
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一种微结构八边形光子晶体光纤
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作者 廖昆 颜义萱 +1 位作者 辛政 李芳 《量子电子学报》 CAS CSCD 北大核心 2024年第5期830-837,共8页
本文设计了一款微结构八边形光子晶体光纤(PCF),并基于有限元法研究了该结构光纤基模的色散特性、非线性特性及限制损耗特性。研究结果表明:通过适当调节该光纤的结构参数,在波长为1.55μm处,出现了一个零色散点,并且在该波长处,得到高... 本文设计了一款微结构八边形光子晶体光纤(PCF),并基于有限元法研究了该结构光纤基模的色散特性、非线性特性及限制损耗特性。研究结果表明:通过适当调节该光纤的结构参数,在波长为1.55μm处,出现了一个零色散点,并且在该波长处,得到高非线性系数值94.97 W^(-1)·km^(-1)以及低限制损耗值3.065×10^(-6)dB/km。该设计为在1.55μm处得到零色散点、高非线性、低损耗的光子晶体光纤提供了理论指导,在色散控制、非线性光学等领域具有潜在的应用前景。 展开更多
关键词 光纤光学 光子晶体光纤 零色散 高非线性 低损耗 有限元法
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sTREM-1 as promising prognostic biomarker for acute-on-chronic liver failure and mortality in patients with acute decompensation of cirrhosis
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作者 Song-Man Yu Hai Li +13 位作者 Guo-Hong Deng Xian-Bo Wang xin zheng Jin-Jun Chen Zhong-Ji Meng Yu-Bao zheng Yan-Hang Gao Zhi-Ping Qian Feng Liu Xiao-Bo Lu Yu Shi Jia Shang Ruo-Chan Chen Yan Huang 《World Journal of Gastroenterology》 SCIE CAS 2024年第9期1177-1188,共12页
BACKGROUND Acute decompensation(AD)of cirrhosis is associated with high short-term mortality,mainly due to the development of acute-on-chronic liver failure(ACLF).Thus,there is a need for biomarkers for early and accu... BACKGROUND Acute decompensation(AD)of cirrhosis is associated with high short-term mortality,mainly due to the development of acute-on-chronic liver failure(ACLF).Thus,there is a need for biomarkers for early and accurate identification of AD patients with high risk of development of ACLF and mortality.Soluble triggering receptor expressed on myeloid cells-1(sTREM-1)is released from activated innate immune cells and correlated with various inflammatory processes.AIM To explore the prognostic value of sTREM-1 in patients with AD of cirrhosis.METHODS A multicenter prospective cohort of 442 patients with cirrhosis hospitalized for AD was divided into a study cohort(n=309)and validation cohort(n=133).Demographic and clinical data were collected,and serum sTREM-1 was measured at admission.All enrolled patients were followed-up for at least 1 year.RESULTS In patients with AD and cirrhosis,serum sTREM-1 was an independent prognosis predictor for 1-year survival and correlated with liver,coagulation,cerebral and kidney failure.A new prognostic model of AD(P-AD)incorporating sTREM-1,blood urea nitrogen(BUN),total bilirubin(TBil),international normalized ratio(INR)and hepatic encephalopathy grades was established and performed better than the model for end-stage liver disease(MELD),MELD-sodium(MELD-Na),chronic liver failure-consortium(CLIF-C)ACLF and CLIF-C AD scores.Additionally,sTREM-1 was increased in ACLF and predicted the development of ACLF during first 28-d follow-up.The ACLF risk score incorporating serum sTREM-1,BUN,INR,TBil and aspartate aminotransferase levels was established and significantly superior to MELD,MELD-Na,CLIF-C ACLF,CLIF-C AD and P-AD in predicting risk of ACLF development.CONCLUSION Serum sTREM-1 is a promising prognostic biomarker for ACLF development and mortality in patients with AD of cirrhosis. 展开更多
关键词 Soluble triggering receptor expressed on myeloid cell-1 Acute decompensation CIRRHOSIS Acute-on-chronic liver failure Prognostic biomarker
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Expert consensus on irrigation and intracanal medication in root canal therapy
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作者 Xiaoying Zou xin zheng +25 位作者 Yuhong Liang Chengfei Zhang Bing Fan Jingping Liang Junqi Ling Zhuan Bian Qing Yu Benxiang Hou Zhi Chen Xi Wei Lihong Qiu Wenxia Chen Wenxi He xin Xu Liuyan Meng Chen Zhang Liming Chen Shuli Deng Yayan Lei Xiaoli Xie Xiaoyan Wang Jinhua Yu Jin Zhao Song Shen Xuedong Zhou Lin Yue 《International Journal of Oral Science》 SCIE CAS CSCD 2024年第1期26-35,共10页
Chemical cleaning and disinfection are crucial steps for eliminating infection in root canal treatment. However, irrigant selection or irrigation procedures are far from clear. The vapor lock effect in the apical regi... Chemical cleaning and disinfection are crucial steps for eliminating infection in root canal treatment. However, irrigant selection or irrigation procedures are far from clear. The vapor lock effect in the apical region has yet to be solved, impeding irrigation efficacy and resulting in residual infections and compromised treatment outcomes. 展开更多
关键词 TREATMENT IRRIGATION EXPERT
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Effect of colorectal cancer stem cells on the development and metastasis of colorectal cancer
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作者 Run-Zhi Deng xin zheng +4 位作者 Zhong-Lei Lu Ming Yuan Qi-Chang Meng Tao Wu Yu Tian 《World Journal of Gastrointestinal Oncology》 SCIE 2024年第11期4354-4368,共15页
The relevant mechanism of tumor-associated macrophages(TAMs)in the treatment of colorectal cancer patients with immune checkpoint inhibitors(ICIs)is discussed,and the application prospects of TAMs in reversing the tre... The relevant mechanism of tumor-associated macrophages(TAMs)in the treatment of colorectal cancer patients with immune checkpoint inhibitors(ICIs)is discussed,and the application prospects of TAMs in reversing the treatment tolerance of ICIs are discussed to provide a reference for related studies.As a class of drugs widely used in clinical tumor immunotherapy,ICIs can act on regulatory molecules on cells that play an inhibitory role-immune checkpoints-and kill tumors in the form of an immune response by activating a variety of immune cells in the immune system.The sensitivity of patients with different types of colorectal cancer to ICI treatment varies greatly.The phenotype and function of TAMs in the colorectal cancer microenvironment are closely related to the efficacy of ICIs.ICIs can regulate the phenotypic function of TAMs,and TAMs can also affect the tolerance of colorectal cancer to ICI therapy.TAMs play an important role in ICI resistance,and making full use of this target as a therapeutic strategy is expected to improve the immunotherapy efficacy and prognosis of patients with colorectal cancer. 展开更多
关键词 Colorectal cancer Colorectal cancer stem cells Tumor metastasis Tumor immune microenvironment REVIEW
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Characterization of acute-on-chronic liver diseases: A multicenter prospective cohort study
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作者 Yuan-Yao Zhang Sen Luo +38 位作者 Hai Li Shu-Ning Sun Xian-Bo Wang xin zheng Yan Huang Bei-Ling Li Yan-Hang Gao Zhi-Ping Qian Feng Liu Xiao-Bo Lu Jun-Ping Liu Hao-Tang Ren Yu-Bao zheng Hua-Dong Yan Guo-Hong Deng Liang Qiao Yan Zhang Wen-Yi Gu Xiao-Mei Xiang Yi Zhou Yi-xin Hou Qun Zhang Yan Xiong Cong-Cong Zou Jun Chen Ze-Bing Huang Xiu-Hua Jiang Ting-Ting Qi Yuan-Yuan Chen Na Gao Chun-Yan Liu Wei Yuan Xue Mei Jing Li Tao Li Rong-Jiong zheng xin-Yi Zhou Jun Zhao Zhong-Ji Meng 《World Journal of Hepatology》 2024年第5期809-821,共13页
BACKGROUND Acute-on-chronic liver disease(AoCLD)accounts for the majority of patients hospitalized in the Department of Hepatology or Infectious Diseases.AIM To explore the characterization of AoCLD to provide theoret... BACKGROUND Acute-on-chronic liver disease(AoCLD)accounts for the majority of patients hospitalized in the Department of Hepatology or Infectious Diseases.AIM To explore the characterization of AoCLD to provide theoretical guidance for the accurate diagnosis and prognosis of AoCLD.METHODS Patients with AoCLD from the Chinese Acute-on-Chronic Liver Failure(ACLF)study cohort were included in this study.The clinical characteristics and outcomes,and the 90-d survival rate associated with each clinical type of AoCLD were analyzed,using the Kaplan-Meier method and the log-rank test.RESULTS A total of 3375 patients with AoCLD were enrolled,including 1679(49.7%)patients with liver cirrhosis acute decompensation(LC-AD),850(25.2%)patients with ACLF,577(17.1%)patients with chronic hepatitis acute exacer-bation(CHAE),and 269(8.0%)patients with liver cirrhosis active phase(LC-A).The most common cause of chronic liver disease(CLD)was HBV infection(71.4%).The most common precipitants of AoCLD was bacterial infection(22.8%).The 90-d mortality rates of each clinical subtype of AoCLD were 43.4%(232/535)for type-C ACLF,36.0%(36/100)for type-B ACLF,27.0%(58/215)for type-A ACLF,9.0%(151/1679)for LC-AD,3.0%(8/269)for LC-A,and 1.2%(7/577)for CHAE.CONCLUSION HBV infection is the main cause of CLD,and bacterial infection is the main precipitant of AoCLD.The most common clinical type of AoCLD is LC-AD.Early diagnosis and timely intervention are needed to reduce the mortality of patients with LC-AD or ACLF. 展开更多
关键词 Acute-on-chronic liver disease Acute-on-chronic liver failure Liver cirrhosis Clinical features PROGNOSIS
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Influence of nonalcoholic fatty liver disease on the therapeutic effect of nucleoside(acid)analogs for hepatitis B virus
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作者 Hua-Dong Li Ya-Nan Liu +8 位作者 Shuang Wu Xu-Feng Quan Xiao-Yan Wang Tian-Dan Xiang Shu-Meng Li Ling Xu Tong Wang Hua Wang xin zheng 《World Journal of Hepatology》 2024年第12期1395-1406,共12页
BACKGROUND The effect of nonalcoholic fatty liver disease(NAFLD)on the efficacy of nucleoside analogues(NAs)in antiviral therapy for patients with chronic hepatitis B(CHB)remains controversial.AIM To investigate the i... BACKGROUND The effect of nonalcoholic fatty liver disease(NAFLD)on the efficacy of nucleoside analogues(NAs)in antiviral therapy for patients with chronic hepatitis B(CHB)remains controversial.AIM To investigate the influence of NAFLD on virological response in CHB patients undergoing NAs treatment.METHODS Logistic regression analysis was conducted on a cohort of 465 CHB patients from two hospitals to determine whether NAFLD was a risk factor for adverse reactions to NAs.CHB patients were followed up for more than 28 months after initial antiviral treatment,and further validation was performed using different viral load populations.RESULTS NAFLD was identified as an independent risk factor for partial virological response following antiviral therapy with NAs(odds ratio=1.777,P=0.017).In our subsequent analysis focusing on CHB patients with high viral load,the NAFLD group exhibited significantly longer virus shedding time and lower proportion of the complete virological response compared with the non-NAFLD group(16.8±6.1 vs 13.0±6.8,P<0.05).During the 24-month period of antiviral treatment with NAs,hepatitis B virus(HBV)DNA levels decreased slowly in the NAFLD group,and the negative conversion rate of HBV was notably lower than that observed in non-NAFLD group(P=0.001).Similar results were obtained when analyzing patients with low baseline HBV viral load within the NAFLD group.CONCLUSION Coexistence of NAFLD may diminish virological response among CHB patients receiving antiviral treatment with NAs. 展开更多
关键词 Nonalcoholic fatty liver disease Chronic hepatitis B Nucleoside analogues Antiviral therapy Virological response
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SMES装置用电压源型变流器双闭环功率控制系统设计 被引量:17
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作者 辛征 魏莉 施啸寒 《电力自动化设备》 EI CSCD 北大核心 2018年第12期168-173,193,共7页
基于PI控制器的双闭环功率控制系统简单可靠,但存在理论参数控制效果不理想、参数进一步调整缺乏系统方法的问题。针对该问题,以超导磁储能(SMES)装置中较常采用的电压源型变流器(VSC)为对象,研究其双闭环功率控制系统中PI参数的设置方... 基于PI控制器的双闭环功率控制系统简单可靠,但存在理论参数控制效果不理想、参数进一步调整缺乏系统方法的问题。针对该问题,以超导磁储能(SMES)装置中较常采用的电压源型变流器(VSC)为对象,研究其双闭环功率控制系统中PI参数的设置方法。首先给出SMES系统中VSC数学模型及控制系统结构,并基于二阶最佳整定思想推导各环PI控制器理论参数的计算式;然后以传递函数及根轨迹为工具,分析各环PI控制器参数变化对各环动态特性的影响规律,并据此总结参数调整步骤;最后通过仿真算例验证理论分析的合理性和参数调整步骤的有效性。 展开更多
关键词 超导磁储能 电压源型变流器 双闭环 功率控制 PI参数调整 根轨迹分析
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70年来我国病媒生物化学防治技术的发展历程与展望 被引量:8
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作者 辛正 张晓 姜志宽 《中华卫生杀虫药械》 CAS 2019年第6期501-506,共6页
化学防治是病媒生物防治的主要手段之一。新中国初期,我国病媒生物防治技术与世界差距巨大,农药工业几乎为零,施药器械极其落后。经过70年的不断努力,目前我国农药生产和使用居世界前列,器械发展达到世界先进水平。本文从卫生杀虫剂、... 化学防治是病媒生物防治的主要手段之一。新中国初期,我国病媒生物防治技术与世界差距巨大,农药工业几乎为零,施药器械极其落后。经过70年的不断努力,目前我国农药生产和使用居世界前列,器械发展达到世界先进水平。本文从卫生杀虫剂、施药器械、防治方法方面综述了70年来我国病媒生物化学防治技术的发展历程。 展开更多
关键词 病媒生物 化学防治 卫生杀虫剂 施药器械
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Exploration of the Teaching Reform of Computer Composition Principles with Ideological and Political Education at Anqing Normal University
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作者 Liangliang Zhang Liefu Ai +2 位作者 xin zheng Xianyang Wang Qingfeng Tang 《Journal of Contemporary Educational Research》 2024年第10期294-299,共6页
The teaching mode of the Computer Composition Principles includes theoretical and practical teaching.At present,there is a problem of inconsistency in the teaching content of the two methods in our school.To this end,... The teaching mode of the Computer Composition Principles includes theoretical and practical teaching.At present,there is a problem of inconsistency in the teaching content of the two methods in our school.To this end,this paper conducts online and offline hybrid teaching based on the learning platform and the virtual simulation experiment platform,and cleverly applies ideological and political elements to theoretical and practical teaching to practice ideological and political education.Finally,the combination of theoretical and practical teaching modes can further help students firmly grasp the core knowledge points and improve the teaching quality and level of this course. 展开更多
关键词 Theoretical teaching Practical teaching Ideological and political education Online and offline
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基于复合电流调节的单相LCL并网逆变器控制方法 被引量:7
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作者 辛征 孙树敏 +1 位作者 何晋伟 庄华伟 《电力系统保护与控制》 EI CSCD 北大核心 2018年第10期123-129,共7页
为了抑制并网逆变器LCL滤波器的谐振,减小双模式变流器因采用较大的输出滤波电容造成的基波电流跟踪误差和网侧电流畸变,提出了一种新型的加权电流控制方法用于单相微电网变流器的控制。首先,在虚拟坐标系下用比例积分谐振控制器提高加... 为了抑制并网逆变器LCL滤波器的谐振,减小双模式变流器因采用较大的输出滤波电容造成的基波电流跟踪误差和网侧电流畸变,提出了一种新型的加权电流控制方法用于单相微电网变流器的控制。首先,在虚拟坐标系下用比例积分谐振控制器提高加权电流的控制精度和动态响应。其次,考虑到传统的加权平均电流的控制不直接控制电网电流以及电网电流和加权平均电流之间的误差,提出了一种改进的电流前馈方法。该方法通过检测输出电流和网侧电流的低频误差构造出一个电流前馈项,从而有效地抑制了网侧电流控制的误差。仿真和实验验证了该控制方法的有效性。 展开更多
关键词 加权平均电流 并网逆变器 单相微电网 虚拟坐标系 比例积分谐振控制器
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物理防治在病媒生物治理中的研究与应用 被引量:3
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作者 辛正 王东 姜志宽 《中华卫生杀虫药械》 CAS 2020年第4期301-305,共5页
由于城市与家居环境的特殊性,病媒生物的治理特别强调无污染、安全性高。在病媒生物防治过程中,物理防治可以杀灭害虫或阻隔其侵入,具有收效迅速、使用便捷等优点,同时最大限度地减少卫生杀虫剂的使用,成为防止病媒生物侵入和危害的主... 由于城市与家居环境的特殊性,病媒生物的治理特别强调无污染、安全性高。在病媒生物防治过程中,物理防治可以杀灭害虫或阻隔其侵入,具有收效迅速、使用便捷等优点,同时最大限度地减少卫生杀虫剂的使用,成为防止病媒生物侵入和危害的主要手段之一。本文介绍了国内外物理防治的研究进展,分析其在病媒生物治理中的前景。 展开更多
关键词 病媒生物 物理防治 综合治理
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GB/T 31712—2015《病媒生物综合管理技术规范 环境治理 鼠类》解读 被引量:1
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作者 辛正 王东 +2 位作者 王永明 刘慧媛 张晓 《中国卫生标准管理》 2019年第9期17-19,共3页
对GB/T 31712—2015《病媒生物综合管理技术规范环境治理鼠类》的范围、术语和定义、技术要求等进行分析解读,讨论了各种参数指标的依据和来源,以便于病媒生物防制专业人员正确理解和应用标准。
关键词 国家标准 病媒生物 环境治理 鼠类
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短期风电功率预测的深度学习模型 被引量:2
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作者 辛征 王琦 刘兴然 《计算机时代》 2023年第2期33-36,41,共5页
风电固有的间歇性和不确定性给准确预测风电出力带来了挑战,也给风电并网带来了棘手的问题。本文提出一种用于风电短期预测的卷积神经网络-双向长短期记忆网络(CNN-BiLSTM)混合深度学习模型。首先利用双向长短期记忆网络挖掘双向时间特... 风电固有的间歇性和不确定性给准确预测风电出力带来了挑战,也给风电并网带来了棘手的问题。本文提出一种用于风电短期预测的卷积神经网络-双向长短期记忆网络(CNN-BiLSTM)混合深度学习模型。首先利用双向长短期记忆网络挖掘双向时间特征,然后利用卷积神经网络提取空间特征。最后使用本文模型对某风电场风电功率进行预测。对比结果表明,使用CNN-BiLSTM方法能显著改善预测性能,降低风电功率预测误差。 展开更多
关键词 风电功率 短期预测 双向长短期记忆网络 特征提取
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