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Robust guaranteed cost filtering for uncertain timedelay systems with Markovian jumping parameters

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Journal of Systems Engineering and Electronics 2005年第4期16卷 852-857页

作者： Fu Yanming Zhang ying Duan Guangren chai Qingxuan Center for Control Theory and Guidance Technology Harbin Inst. of Technology Harbin 150001 P. R. China

The robust guaranteed cost filtering problem for a dass of linear uncertain stochastic systems with time delays is investigated. The system under study involves time delays, jumping parameters and Brownian motions. The transition of the jumping parameters in systems is governed by a finite-state Markov process. The objective is to design linear memoryless filters such that for all uncertainties, the resulting augmented system is robust stochastically stable independent of delays and satisfies the proposed guaranteed cost performance. Based on stability theory in stochastic differential equations, a sufficient condition on the existence of robust guaranteed cost filters is derived. Robust guaranteed cost filters are designed in terms of linear matrix inequalities. A convex optimization problem with LMI constraints is formulated to design the suboptimal guaranteed cost filters.

关键词： stochastic systems Markovian jumping parameters guaranteed oost filtering linear matrix inequalities,time-delay systems.

Successful surgical strategy in a late case of Boerhaave's syndrome

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World Journal of Gastroenterology 2014年第35期20卷 12696-12700页

作者： Gang Shen ying chai Guo-Fei Zhang Department of Thoracic Surgery the Second Affiliated HospitalCollege of MedicineZhejiang University

Boerhaave’s syndrome refers to the spontaneous transmural rupture of the esophagus. Primary repair may be performed in patients who present within 24 h of perforation, and such cases have the best outcomes as most complications have not yet developed. However, the treatment of late perforations remains controversial. Various approaches and strategies to repair late perforations have been described in the literature, but there is no uniform approach. We present a case of Boerhaave’s syndrome in which the patient underwent surgical repair 48 h after the acute event and was subsequently treated successfully. The initial approach included direct esophageal repair, a drainage series, and nutritional support via a feeding jejunostomy. Although the repair site was subsequently disrupted, the patient showed complete healing of the perforation after three weeks. We consider that our surgical treatment strategy is safe and technically feasible, and appears to be a promising alternative approach for the treatment of patients with late Boerhaave’s perforation.

关键词： Boerhaave’ s perforation Surgery Drainage Repair Nutritional support

Spontaneous pneumomediastinum in adolescents

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Chinese Medical Journal 2007年第24期120卷 2329-2330页

作者： SHEN Gang chai ying Department of Cardio-thoracic Surgery Second Alliliated Hospital School of Medicine Zhejiang University Hangzhou310009 China

Spontaneous pneumomediastinum （SPM）, reported firstly by Hamman in 1939, is an uncommon, and usually benign, and self-limiting clinical disorder found in young people often without apparent precipitating factors or diseases. The predominant symptom of SPM is the acute onset of retrosternal chest pain. Because of its low occurrence, and its mild intensity, the diagnosis of SPM can be easily missed. We have reviewed our hospital records for the past five years （about 100 000 in-hospital patients and 90 000 emergency patients） and found only two cases of SPM.

关键词： mediastinal emphysema diagnosis

Experience of humanistic nursing in hemodialysis nursing for patients with diabetic kidney disease

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World Journal of Diabetes 2024年第2期15卷 186-195页

作者： Xiao-ying chai Xiao-Yan Bao ying Dai Xing-Xing Dai Yu Zhang Yu-Ling Yang Department of Nephrology The Affiliated Hospital of Jiangnan UniversityWuxi 214000Jiangsu ProvinceChina Department of Hemodialysis The Affiliated Hospital of Jiangnan UniversityWuxi 214000Jiangsu ProvinceChina Department of Endocrinology The Affiliated Hospital of Jiangnan UniversityWuxi 214000Jiangsu ProvinceChina

BACKGROUND Diabetic kidney disease(DKD)is a prevalent complication of diabetes that often requires hemodialysis for *** the field of nursing,there is a growing recognition of the importance of humanistic care,which focuses on the holistic needs of patients,including their emotional,psychological,and social ***,the application of humanistic nursing in the context of hemodialysis for DKD patients remains relatively *** To explore the experience of humanistic nursing in hemodialysis nursing for DKD *** Ninety-six DKD patients treated with hemodialysis from March 2020 to June 2022 were included in the study and divided into the control cluster(48 cases)and the study cluster(48 cases)according to different nursing methods;the control cluster was given routine nursing and the study cluster was given humanized *** variances of negative emotion mark,blood glucose,renal function,the incidence of complications,life mark and nursing satisfaction before and after nur-sing were contrasted between the two *** No significant difference in negative emotion markers between the two clusters were observed before nursing(P>0.05),and the negative emotion markers of the two clusters decreased after *** Hamilton Anxiety Rating Scale and Hamilton Depression Rating Scale markers were lower in the study cluster than the control *** healing rate of patients in the study cluster was significantly higher than the control cluster(97.92%vs 85.42%,P0.05).However,after nursing,blood urea nitrogen and serum creatinine(SCr)levels in the study cluster were lower than those in the control cluster(P<0.05).The incidence rate of complications was significantly lower in the study group compared to the control cluster(6.25%vs 20.83%,P<0.05).There was no significant difference in the life markers between the two clusters be

关键词： Diabetic kidney disease Hemodialysis Humanistic nursing Incidence of complication Effect

Successful esophagectomy in a patient with combined esophageal cancer and hemophilia B

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World Journal of Gastroenterology 2014年第35期20卷 12701-12703页

作者： Guo-Fei Zhang ying chai Wen-Shan Li Lian-Sheng Huang Gang Shen Department of Thoracic Surgery the Second Affiliated HospitalCollege of MedicineZhejiang University Department of Hematology the Second Affiliated HospitalCollege of MedicineZhejiang University

Patients with esophageal cancer often require esophagectomy with ***,the incidence of complications,such as hemorrhage,during operations for esophageal cancer is high,even with minimally invasive *** the appropriate interventions,the risk of major intraoperative and postoperative hemorrhage is very high in patients with esophageal cancer and *** report the case of a 45-year-old man with esophageal cancer and hemophilia B who underwent a successful hybrid,minimally invasive Ivor-Lewis esophagectomy with appropriate perioperative management.

关键词： Esophageal cancer Esophagectomy Hemophilia B Esophagogastrostomy Hemorrhage

Novel compound heterozygous GPR56 gene mutation in a twin with lissencephaly:A case report

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World Journal of Clinical Cases 2022年第2期10卷 607-617页

作者： Wen-Xin Lin ying-ying chai Ting-Ting Huang Xia Zhang Guo Zheng Gang Zhang Fang Peng Yan-Jun Huang Department of Neurology Children’s Hospital of Nanjing Medical UniversityNanjing 210000Jiangsu ProvinceChina Department of Neurology Huashan HospitalFudan UniversityShanghai 200040China

BACKGROUND Lissencephaly(LIS)is a malformation of cortical development with broad gyri,shallow sulci and thickened cortex characterized by developmental delays and ***,20 genes have been implicated in ***,GRP56-related LIS has never been ***56 is considered one of the causative genes for bilateral frontoparietal ***,we report a twin infant with LIS and review the relevant *** twins both carried the novel compound heterozygous GPR56 *** SUMMARY A 5-mo-old female infant was hospitalized due to repeated convulsions for 1 *** patient had a flat head deformity that manifested as developmental delays and a sudden onset of generalized tonic-clonic seizures at 5 mo without any *** electroencephalography was *** magnetic resonance imaging revealed a simple brain structure with widened and thickened gyri and shallow *** white matter of the brain was significantly *** long T1 and T2 signals could be seen around the ventricles,which were expanded,and the extracerebral space was *** testing confirmed that the patient carried the GPR56 gene compound heterozygous mutations c.228delC(p.F76fs)and c.1820_1821delAT(p.H607fs).The unaffected father carried a heterozygous c.1820_1821delAT mutation,and the unaffected mother carried a heterozygous c.228delC *** twin sister carried the same mutations as the *** patient was diagnosed with *** This is the first case report of LIS that is likely caused by mutations of the GPR56 gene.

关键词： Lissencephaly Epilepsy GPR56 mutations Compound heterozygous mutations Case report

企业产权性质变更与生产效率——基于微观实证和加总生产率分解的双重视角

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系统工程理论与实践 2024年第6期44卷 1834-1852页

作者：郑冠群柴映柴建西安电子科技大学经济与管理学院西安710126

本文利用2004年至2022年沪深两市A股上市公司微观数据,就上市公司实际控制人产权性质变更特征、产权性质变更对企业个体生产效率的影响,及对部门加总生产效率的影响进行了系统的实证分析.研究发现:第一,20世纪90年代第一轮国企改制浪潮... 详细信息

本文利用2004年至2022年沪深两市A股上市公司微观数据,就上市公司实际控制人产权性质变更特征、产权性质变更对企业个体生产效率的影响,及对部门加总生产效率的影响进行了系统的实证分析.研究发现:第一,20世纪90年代第一轮国企改制浪潮中普遍存在的“靓女先嫁”现象在2004至2022年间基本不复存在,国有资本控制民营上市公司也不存在明显的“择优而取”现象,参与改制的上市公司的生产率水平总体上低于其他同类属性的上市公司;第二,基于渐进双重差分的微观实证研究结果表明,无论是私有化改制还是国有化改制,上市公司实际控制人产权性质变更都有助于提升企业个体生产效率;第三,基于DOP框架的部门加总生产率分解结果显示,产权性质变更效应提升了国有和非国有部门的加总生产率,特别是对非国有部门加总生产率增长的贡献较大.总体而言,上市公司产权性质变更集中反映了“国资驰援”“让利于民”“民进国退”等混合所有制改革思路,释放出明显的改革红利.

关键词：产权性质变更全要素生产率渐进性双重差分 DOP分解

Urticaria as the initial presentation of early stage Bronchioloalveolar carcinoma： a case report

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Chinese Medical Journal 2012年第11期125卷 2065-2066页

作者： HU Hui-hui ying Ke-jing WU Xiao-hong chai ying Department of Respiratory Medicine Sir Run Rtm Shaw Hospital College of Medicine Zhejiang University Hangzhou Zhejiang 310016 China Department of Thoracic Surgery Second Affiliated Hospital College of Medicine Zhejiang University Hangzhou Zhejiang 310009 China

Bronchioloalveolar carcinoma is a subtype of the lung adenocarcinoma. Early stage bronchioloalveolar carcinoma is usually asymptomatic, especially in the peripheral lung. Rarely, urticaria has been described occurring with lung cancer, usually small-cell lung cancer, but no case has been reported of the bronchioloalveolar carcinoma yet. We report here a unique and initial urticaria on a patient, lasting for 6 months, who finally was diagnosed as early stage bronchioloalveolar carcinoma （TlaNOM0）. After treatment of surgery, the symptom of urticaria disappeared and did not recur. Therefore, we consider that utricaria is a possibly clinical manifestation in early stage bronchioloalveolar carcinoma.

关键词： urticaria, bronchioloalveolar carcinoma early stage

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唐代土地私有权问题研究

史学月刊 2007年第8期 37-42页

作者：柴荣柴英北京师范大学法学院中国人民大学书报资料中心

唐代土地所有权经历了从公有到私有的动态演变过程。唐代土地私有权的形态包括永业田、园宅墓田、寺院土地。在国家法律逐渐放宽对土地买卖限制的背景下,唐代土地私有权的扩张主要是通过土地买卖实现的。唐代中后期土地私有权极度发展,... 详细信息

唐代土地所有权经历了从公有到私有的动态演变过程。唐代土地私有权的形态包括永业田、园宅墓田、寺院土地。在国家法律逐渐放宽对土地买卖限制的背景下,唐代土地私有权的扩张主要是通过土地买卖实现的。唐代中后期土地私有权极度发展,地主庄园成为土地高度私有化的典型体现。

关键词：唐代土地私有土地买卖地主庄园