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有限集合所有划分的迭代算法

江西师范大学学报（自然科学版） 2009年第6期33卷 643-645页

作者：唐保祥天水师范学院数学与统计学院甘肃天水741001

利用一种生成集合{1,2,…,n}的迭代算法讨论了有限集合划分问题,得到了集合{1,2,…,n}的所有划分的一个较为有效算法,并用turbo pascal编程实现了该算法.

关键词：集合的划分第二类Stirling数迭代算法

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我国服务贸易进口的技术效应分析

华东经济管理 2009年第4期23卷 32-35页

作者：唐保庆南京大学经济学院江苏南京210093

文章基于DEA的Malmquist指数方法将全要素生产率(TFP)分解为技术进步(TP)和技术效率(TE),按照要素密集度把服务贸易划分为劳动密集型、资本密集型、技术与知识密集型服务贸易三类,研究了三种要素密集型的服务贸易进口分别对全要素生产... 详细信息

文章基于DEA的Malmquist指数方法将全要素生产率(TFP)分解为技术进步(TP)和技术效率(TE),按照要素密集度把服务贸易划分为劳动密集型、资本密集型、技术与知识密集型服务贸易三类,研究了三种要素密集型的服务贸易进口分别对全要素生产率、技术进步和技术效率的影响,结果发现,劳动密集型服务贸易进口对TFP、TP和TE均无显著影响,资本密集型服务贸易进口对TFP有显著影响,但对TP和TE没有显著影响,技术与知识密集型服务贸易进口对TFP、TP和TE均有显著影响。最后,文章在此研究结论的基础上提出了相应的政策建议。

关键词：全要素生产率技术进步技术效率服务贸易进口

PROGRESS ON NUCLEAR DATA EVALUATION IN PEKING UNIVERSITY IN 1991

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中国核科技报告 1992年第S1期 61-62页

作者： tang Guoyou bao Shanglian(THE INSTITUTE OF HEAVY ION PHYSICS, PEKING UNIVERSITY)

1 NEUTRON NUCLEAR DATA EVALUATION FORU The evaluation of neutron nuclear data ofU for CENDL-2 was *** to CENDL—1,the resonance parameters have been addedand all pointwise data have been *** to ENDF/B—5,most ofthe data were *** the relatively measured data(toU andAu)have been renormalized to ENDF/B—6 data *** theoretical calculation

关键词： data ENDF PROGRESS ON NUCLEAR DATA EVALUATION IN PEKING UNIVERSITY IN 1991

蠲痹止痛方内服与熏洗治疗膝关节滑膜炎60例

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中国实验方剂学杂志 2015年第20期21卷 188-191页

作者：唐保明青海大学附属医院西宁810000

目的:评价蠲痹止痛方内服与熏洗在中西医结合综合治疗膝关节滑膜炎的方案中的疗效分析。方法:将122例患者采用随机按数字表法分为观察组60例和对照组62例。对照组行关节穿刺,抽取关节腔积液后注入曲安奈得注射液和玻璃酸纳注射液各20 m... 详细信息

目的:评价蠲痹止痛方内服与熏洗在中西医结合综合治疗膝关节滑膜炎的方案中的疗效分析。方法:将122例患者采用随机按数字表法分为观察组60例和对照组62例。对照组行关节穿刺,抽取关节腔积液后注入曲安奈得注射液和玻璃酸纳注射液各20 mg,1次/7 d,共2次,并口服塞来昔布胶囊,0.2 g/次,1次/d。观察组在对照组治疗的基础上采用蠲痹止痛方内服与熏洗,两组疗程均为4周。记录治疗前后疼痛、肿胀和关节活动评分,记录疼痛缓解时间和消失时间,进行治疗前后Bristol膝关节评分,检测治疗前后血沉(ESR)和C-反应蛋白(CRP)水平。结果:经Ridit分析,观察组临床疗效优于对照组,差异有统计学意义(P<0.05);观察组疼痛、肿胀和关节活动度评分低于对照组(P<0.01);观察组平均疼痛缓解时间和消失时间均短于对照组(P<0.05);观察组ESR和CRP水平低于对照组(P<0.05);治疗后Bristol膝关节各维度评分和总分均比治疗前显著升高(P<0.01),观察组除畸形外其他评分均高于对照组(P<0.05,P<0.01);观察组优良率达70%,高于对照组的51.2%(P<0.05)。结论:蠲痹止痛方内服与熏洗配合西药治疗膝关节滑膜炎,缓解疼痛和肿胀症状,促进了关节功能的恢复,在中西医结合的综合治疗方案中起到了较好的效果。

关键词：膝关节滑膜炎中医结合治疗方案蠲痹止痛方

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基于暂态波形鉴别的异步电机综合保护

辽宁工程技术大学学报（自然科学版） 2006年第2期25卷 238-240页

作者：王涛唐保国乔和辽宁工程技术大学电气工程系辽宁阜新123000 辽宁阜新清源污水处理有限公司辽宁阜新123000

针对目前异步电动机常见故障及存在问题,对电机故障特征进行了分析,提出了一种异步电机保护方案。该方案结合对称分量法,对异步电机保护的差分、傅氏算法和半波积分进行了详细分析,给出了微机保护算法模型,提出了基于暂态波形鉴别的起... 详细信息

针对目前异步电动机常见故障及存在问题,对电机故障特征进行了分析,提出了一种异步电机保护方案。该方案结合对称分量法,对异步电机保护的差分、傅氏算法和半波积分进行了详细分析,给出了微机保护算法模型,提出了基于暂态波形鉴别的起动与堵转保护判据,并对软件构成进行了分析,从而构成了一套完整的微机式异步电机综合保护方案。通过动模实验,说明该保护方法能够正确进行故障类型判别,验证了理论分析的正确性和可行性。

关键词：微机保护故障特征差分算法傅氏算法半波积分

Diagnosis and treatment of biliary mucinous cystic neoplasms: A single-center experience

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Hepatobiliary & Pancreatic Diseases International 2024年第5期23卷 495-501页

作者： Jun-Jun Jia Ya-Fen Cheng Mei-bao Feng Li Liu Ming-Qi Shuai Xiao-Dong Shen Xiao-Feng tang Shu-Sen Zheng Division of Hepatobiliary and Pancreatic Surgery Department of Surgerythe First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of International Healthcare Center the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of Pathology the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of Library the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China

Background: Biliary mucinous cystic neoplasms(BMCNs) are rare hepatobiliary cystic tumors, which can be divided into noninvasive and invasive types. This study aimed to investigate the diagnosis, treatment, and prognosis of BMCNs in a large single center. Methods: We analyzed 49 patients with BMCNs confirmed by postoperative pathology at the First Afflliated Hospital, Zhejiang University School of Medicine between January 2007 and December 2021. Results: Among the 49 patients, 37 were female(75.5%), and the average age was 57.04 years. Common symptoms included abdominal discomfort, jaundice and fever, while 22 patients(44.9%) had no symptoms. Serum carbohydrate antigen(CA) 19-9 and CA125 concentrations were elevated in 34.8% and 19.6% of patients, respectively. Forty-eight patients had tumors in the intrahepatic bile ducts and only one had a tumor in the extrahepatic bile duct. Forty-eight patients with noninvasive intrahepatic BMCNs were further analyzed in terms of pathological features: 34(70.8%) had low-grade intraepithelial neoplasms(LGINs), and 14(29.2%) had high-grade intraepithelial neoplasms(HGINs). The potential immunohistochemical markers of BMCNs were cytokeratin(CK) 19, CK7, estrogen receptor and progesterone receptor. Follow-up data for 37 patients with intrahepatic BMCNs were obtained. The median overall survival(OS) of BMCNs was not reached. The longest survival time was 137 *** 5-and 10-year OS rates were 100% and 85.4%, respectively. The 5-and 10-year recurrence-free survival(RFS) rates were 93.9% and 80.2%, respectively. Conclusions: BMCNs are rare cystic neoplasms that commonly occur in middle-aged females. BMCNs can only be diagnosed and classified by postoperative pathology, as there are no specific clinical presentations, serological indicators or imaging modalities for preoperative diagnosis. Complete surgical resection is necessary for BMCNs, and the postoperative prognosis is favorable.

关键词： Biliary mucinous cystic neoplasms Low-grade intraepithelial neoplasms High-grade intraepithelial neoplasms Overall survival Recurrence-free survival

Changes in microRNAs expression are involved in age-related atrial structural remodeling and atrial fibrillation

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Chinese Medical Journal 2013年第8期126卷 1458-1463页

作者： XU Guo-jun GAN Tian-yi tang bao-peng CHEN Zu-heng Mahemuti Ailiman ZHOU Xian-hui JIANG Tao SONG Jian-guo GUO Xia LI Yao-dong MIAO Hai-jun ZHANG Yu LI Jin-xin Department of CardiologyFirst Affiliated Hospital Xinjiang Medical UniversityUrumqi Xinjiang 830011 China Department ofAnimal Experiment First Affiliated Hospital Xinjiang Medical UniversityUrumqi Xinjiang 830011 China Laboratory of Electrophysiology First Affiliated Hospital Xinjiang Medical UniversityUrumqi Xinjiang 830011 China Department of Molecular Biology First Affiliated Hospital Xinjiang Medical UniversityUrumqi Xinjiang 830011 China

Background Small noncoding microRNAs regulate gene expression in cardiac development and disease and have been implicated in the aging process and in the regulation of extracellular matrix proteins. However, their role in age-related cardiac remodeling and atrial fibrillation （AF） was not well understood. The present study was designed to decipher molecular mechanisms underlying age-related atrial structural remodeling and AF. Methods Three groups of dogs were studied： adult and aged dogs in sinus rhythm and with persistent AF induced by rapid atrial pacing. The expressions of microRNAs were measured by quantitative real-time polymerase chain reaction. Pathohistological and ultrastructural changes were tested by light and electron microscopy. Apoptosis index of myocytes was detected by TUNEL. Results Samples of atrial tissue showed the abnormal pathohistological and ultrastructural changes, the accelerated fibrosis, and apoptosis with aging and/or in AF dogs. Compared to the adult group, the expressions of microRNAs-21 and -29 were significantly increased, whereas the expressions of microRNAs-1 and -133 showed obvious downregulation tendency in the aged group. Compared to the aged group, the expressions of microRNAs-1, -21, and -29 was significantly increased in the old group in AF; contrastingly, the expressions of microRNA-133 showed obvious downregulation tendency. Conclusion These multiple aberrantly expressed microRNAs may be responsible for modulating the transition from adaptation to pathological atrial remodeling with aging and/or in AE

关键词： atrial fibrillation aging structural remodeling microRNAs

基于DSmT与小波网络的齿轮箱早期故障融合诊断

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振动与冲击 2013年第9期32卷 40-45页

作者：陈法法汤宝平姚金宝重庆大学机械传动国家重点实验室重庆400030

针对齿轮箱早期故障特征十分微弱难以有效辨识问题,提出基于DSmT理论与小波神经网络的齿轮箱早期故障融合诊断模型。利用多个振动传感器合理布置在齿轮箱的多个关键部位采集多源振动信息并进行特征提取;利用多个并联小波神经网络实现齿... 详细信息

针对齿轮箱早期故障特征十分微弱难以有效辨识问题,提出基于DSmT理论与小波神经网络的齿轮箱早期故障融合诊断模型。利用多个振动传感器合理布置在齿轮箱的多个关键部位采集多源振动信息并进行特征提取;利用多个并联小波神经网络实现齿轮箱早期故障的初级诊断获得彼此独立的多个证据;利用DSmT理论对多个独立证据进行融合决策得出齿轮箱的最终诊断结论。DSmT理论克服了传统DST证据理论的局限性,小波神经网络实现多源证据信度分配的客观化。诊断实验结果表明,该方法能有效提高齿轮箱早期故障特征的辨识精度、降低诊断的不确定性。

关键词： Dezert-Smarandache理论信息融合小波神经网络齿轮箱故障诊断

Pseudomonas aeruginosa regulator PvrA binds simultaneously to multiple pseudo-palindromic sites for efficient transcription activation

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Science China(Life Sciences) 2024年第5期67卷 900-912页

作者： Yibo Zhu Bingnan Luo Xingyu Mou Yingjie Song Yonghong Zhou Yongbo Luo Bo Sun Youfu Luo Hong tang Zhaoming Su Rui bao Center of Infectious Diseases Division of Infectious Diseases in State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu 610041China Department of Geriatrics and National Clinical Research Center for Geriatrics West China HospitalSichuan UniversityChengdu 610041China Key Laboratory of Biodiversity and Environment on the Qinghai-Tibetan Plateau Ministry of EducationSchool of Ecology and EnvironmentTibet UniversityLhasa 850000China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China College of Life Science Sichuan Normal UniversityChengdu 610101China Accurate Biotechnology(Hunan)Co. LtdChangsha 410006China

Tetracycline repressor(TetR)family regulators(TFRs)are the largest group of DNA-binding transcription factors and are widely distributed in bacteria and *** play vital roles in controlling the expression of various genes and regulating diverse physiological ***,a TFR protein Pseudomonas virulence regulator A(PvrA),was identified from Pseudomonas aeruginosa as the transcriptional activator of genes involved in fatty acid utilization and bacterial ***,we show that PvrA can simultaneously bind to multiple pseudo-palindromic sites and upregulate the expression levels of target ***-electron microscopy(cryo-EM)analysis indicates the simultaneous DNA recognition mechanism of PvrA and suggests that the bound DNA fragments consist of a distorted B-DNA double *** crystal structure and functional analysis of PvrA reveal a hinge region that secures the correct domain motion for recognition of the promiscuous ***,our results showed that mutations disrupting the regulatory hinge region have differential effects on biofilm formation and pyocyanin biosynthesis,resulting in attenuated bacterial ***,these findings will improve the understanding of the relationship between the structure and function of the TetR family and provide new insights into the mechanism of regulation of *** virulence.

关键词： Pseudomonas aeruginosa transcription regulator TetR protein-structure virulence