检索结果-南通市图书馆

Sarnak’s Conjecture for Irregular Flows on Infinite-dimensional Torus

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2019年第9期35卷 1541-1548页

作者： qing yang liu School of Mathematics Shandong University

Sarnak’s Disjointness Conjecture states that the Mobius function is disjoint with any zeroentropy flow. This note establishes this conjecture, with a rate, for Furstenberg’s irregular flows on the infinite-dimension... 详细信息

关键词： Sarnak's disjointness conjecture Mobius function irregular flow skew product infinitedimensional torus

SYNTHESIS AND CHARACTERIZATION OF NOVEL REACTIVE POLYORGANOSILOXANE CONTAINING NITRO GROUPS

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2001年第1期19卷 1-6页

作者： Chun-qing liu yang liu Ping Xie Rong-ben Zhang Chao-bin He Neal Tai-shung Chung PCLCC Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China PCLCCCenter for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China PCLCCCenter for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China PCLCCCenter for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Institute of Materials Research and Engineering National University of Singapore Singapore 119260 Institute of Materials Research and Engineering National University of Singapore Singapore 119260

A novel reactive polyorganosiloxane containing nitro groups was first prepared by acid-catalyzed equilibration polymerization. The monomer, 3-(4-nitrophenoxy)propylmethyldichlorosilane (NPPMS), was synthesized by hydrosilylation reaction with dicyciopentadienylplatinum(II) chloride (Cp2PtCl2) catalyst in high yield. The synthesized polynitroorganosiloxane, which has potential application as a precursor for synthesizing advanced functional polymers, was characterized by FTIR, H-1-NMR, C-13-NMR, Si-29-NMR, vapor pressure osmometry (VPO) and gel permeation chromatography(GPC).

关键词： polyorganosiloxane equilibration polymerization hydrosilylation characterization

First Observation of Neoclassical Tearing Modes in the HL-2A Tokamak

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 2010年第6期27卷 137-140页

作者： JI Xiao-Quan yang qing-Wei liu Yi ZHOU Jun FENG Bei-Bin YUAN Bao-Shan Southwestern Institute of Physics Chengdu 610041

The m/n = 2/1 neoclassical tearing modes are first observed in HL-2A low density, low beta plasma with central electron cyclotron resonance heating. The neoclassical tearing modes （NTMs） are triggered by a sawtooth crash with m/n = 1/1 precursors, which are toroidal coupled with a small scale m/n = 2/1 mode. The time history of the island width is compared with the prediction of the NTM theory, showing a good agreement between theory and experiment.

关键词： OBSERVATION (Scientific method) TOKAMAKS PLASMA (Ionized gases) ELECTRON cyclotron resonance sources HEATING MAGNETIC fields PREDICTION models

SYNTHESIS AND CHARACTERIZATION OF A NOVEL ALCOHOL-SOLUBLE POLYORGANOSILOXANE CONTAINING AMINO SIDE GROUPS

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2001年第1期19卷 97-102页

作者： Chun-qing liu yang liu Zhong-rong Shen Ping Xie Rong-ben Zhang Chao-bin He Tai-shung Chung PCLCC Center for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China PCLCCCenter for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China PCLCCCenter for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China PCLCCCenter for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China PCLCCCenter for Molecular Science Institute of Chemistry Chinese Academy of Sciences Beijing 100080 China Institute of Materials Research and Engineering National University of Singapore Singapore 119260 Institute of Materials Research and Engineering National University of Singapore Singapore 119260

A novel alcohol-soluble polyorganosiroxane containing amino side groups, poly[3-(4-aminophenoxy)-aminophenoxy) propylmethylsiloxane] (2), was first prepared by the reduction of nitro groups on 4-nitrophenoxypropyl side chains of poly[3-(4-nitrophenoxy)propylmethylsiloxane] (1). The reaction proceeded easily with nearly 100% conversion. The synthesized alcohol-soluble polymer 2, which has potential application as a precursor for preparing advanced functional polymers, was characterized by FTIR, H-1-NMR, C-13-NMR, Si-29-NMR, VPO and GPC, respectively.

关键词： alcohol-soluble polyorganosiloxane reduction characterization

Transarterial injection of H101 in combination with chemoembolization overcomes recurrent hepatocellular carcinoma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2011年第18期17卷 2353-2355页

作者： qing He yang liu qing Zou Yong-Song Guan Department of Oncology West China Hospital of Sichuan University Chengdu 610041 Sichuan Province China

Transcatheter arterial chemoembolization (TACE) has become the standard treatment modality for unresectable hepatocellular carcinoma (HCC). Nonetheless, the clinical outcomes in patients with unresectable HCC are often unsatisfactory, especially in those with recurrent HCC. H101, an E1B gene deleted adenovirus, is known to have a significant antitumor activity. In addition, local injection of H101 can enhance the effect of antitumor therapies (chemotherapy and radiotherapy). Transarterial H101 gene injection in combination with TACE may help to control refractory and recurrent HCC. In this study, we report a 55-year-old patient with recurrent HCC which was treated with transarterial injection of H101 in combination with TACE, leading to a good clinical prognosis of the patient.

关键词： Hepatocellular carcinoma H101 Transcatheter arterial chemoembolization Therapy

Robotic internal thoracic artery harvesting： the learning curve and graft patency

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Medical Journal 2013年第10期126卷 1982-1983页

作者： yang Ming GAO Chang-qing WU yang liu Shuai Department of Cardiovascular Surgery People's Liberation ArmyGeneral Hospital Beijing 100853 China

Since the first report of totally endoscopic coronary artery bypass graft （CABG） using da Vinci SurgicalSystem （Intuitive Surgical, Sunnyvale, CA, USA） in 1999, the robotic technology has been applied to internal thoracic artery （ITA） harvesting for more than I0 years. We present the experience of robotic ITA skeletonized harvesting in 200 cases using the da Vinci S or da Vinci SI Surgical System. The learning curves of 1TA harvesting time and the results of ITA graft patency were evaluated.

关键词： robotics internal thoracic artery coronary artery bypass graft harvest

Clinical patterns and characteristics of uveitis in a secondary hospital in southern China

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2015年第2期8卷 337-341页

作者： yang Zheng Li-Xin Zhang Qian-Li Meng Min Zhang Ying Cui qing-yang liu Zhong-Ling Luo Li-Ping Du Chongqing Eye Institute Chongqing Key Laboratory of Ophthalmology the First Affiliated Hospital of Chongqing Medical University Hengli Town People's Hospital Department of Ophthalmology Guangdong Eye InstituteGuangdong General Hospital Guangdong Academy of Medical Sciences Department of Ophthalmology Dongguan People's Hospital

AIM: To investigate the characteristics of uveitis in a secondary hospital in southern ***: We reviewed all records of patients with uveitis at Hengli Hospital from January 2008 to December2011. Demographic data, past history, ophthalmic examinations and other laboratory tests were ***: One hundred and ninety-nine uveitis patients were enrolled in this study, including 134(67.3%) males and 65 females(32.7%) with an average age of 41.0 ±15.1y. The anatomical distribution included103(51.8%) cases of anterior uveitis, followed by panuveitis(65, 32.7%), posterior uveitis(29, 14.6%) and intermediate uveitis(2, 1.0%). Of the 98(49.2%) non-idiopathic cases, there were 10.1% Behcet’s disease,9.5% Vogt-Koyanagi-Harada(VKH) syndrome, 7.5%infectious uveitis, 7.5% traumatic uveitis and 3.5%postoperative ***: Idiopathic anterior and posterior uveitis,Behcet’s disease, VKH syndrome, infectious uveitis and traumatic uveitis are the most common uveitis entities in a secondary hospital in southern China. Additional measures should be taken to prevent infectious and traumatic uveitis.

关键词： uveitis southern China epidemiological studies

Inflammatory response and immune regulation of high mobility group box-1 protein in treatment of sepsis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Emergency Medicine 2010年第2期1卷 93-98页

作者： qing-yang liu Yong-ming Yao Department of Microbiology and Immunology Burns Institute First Hospital Affiliated to the Chinese People＇s Liberation Army General Hospital Beijing 100048 China

Sepsis is an infection induced systemic inflammatory response syndrome and is a major cause of morbidity as well as mortality in intensive care units. A growing body of evidence suggests that the activation of a proinflammatory cascade is responsible for the development of immune dysfunction, susceptibility to severe sepsis and septic shock. The present theories of sepsis as a dysregulated inflammatory response and immune function, as manifested by excessive release of inflammatory mediators such as high mobility group box 1 protein （HMGB1）, are supported by increasing studies employing animal models and clinical observations of sepsis. HMGB1, originally described as a DNA-binding protein and released passively by necrotic cells and actively by macrophages/monocytes, has been discovered to be one of essential cytokines that mediates the response to infection, injury and inflammation. A growing number of studies still focus on the inflammation-regulatory function and its contribution to infectious and inflammatory disorders, recent data suggest that HMGB1 formation can also markedly influence the host cell-mediated immunity, including T lymphocytes and macrophages. Here we review emerging evidence that support extracellular HMGB1 as a late mediator of septic complications, and discuss the therapeutic potential of several HMGBl-targeting agents in experimental sepsis. In addition, with the development of traditional Chinese medicine in recent years, it has been proven that traditional Chinese herbal materials and their extracts have remarkable effective in treating severe sepsis. In this review, we therefore provide some new concepts of HMGBl-targeted Chinese herbal therapies in sepsis.

关键词： Sepsis Inflammatory mediators High mobility group box 1 protein

Two Stage Estimation and Its Covariance Matrix in Multivariate Seemingly Unrelated Regression System

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Quarterly Journal of Mathematics 2006年第3期21卷 397-401页

作者： WANG Shi-qing yang qiao liu fa-gui Department of Mathematics North China Institute of Hydropower Zhengzhou 450008 China

Multivariate seemingly unrelated regression system is raised first and the two stage estimation and its covariance matrix are given. The results of the literatures[1-5] are extended in this paper.

关键词： multivariate seemingly unrelated regression system two stage estimation covariance matrix unrestricted estimator