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Feeding effects of dsNPF interference in Ostrinia furnacalis

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Journal of Integrative Agriculture 2020年第6期19卷 1475-1481页

作者： CUI Hong-ying WANG Yuan PENG Xin WANG Yi-tong zhao zhang-wu Department of Entomology/MOA Key Lab of Pest Monitoring and Green Management College of Plant ProtectionChina Agricultural UniversityBeijing 100193P.R.China

The com borer is a world-wide agricultural *** this study,a high-efficiency RNAi method was explored to knock down the neuropeptide F(NPF)to determine if NPF regulates larval feeding in the Asian corn borer,Ostrinia *** showed that the expression peaks of npfmRNA in both midgut and fat body are at 28 h of early 5th instar *** NPF was kno eked dow n either by feedi ng dsNPF-c ontaining artificial diet or direct dsNPF in jection into the 5th in star larvae,npf expression was effectively inhibited in the *** feeding,body weight and development time were significantly *** con trast,the expressi on of the npf receptors npfrl and npfr2 in fat body of 5th in star larvae was sign ifica ntly increased by dsNPF *** results indicate that NPF can be effectively knoeked down in ***,and dsNPF by injection is an effective and fast way to silence npf *** study provides a critical basis for further exploration in mechanism of feeding regulation in ***.

关键词： neuropeptide NPF NPFR feeding regulation Asian corn borer

Study of titanium nitride for low-e coating application

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Chinese Science Bulletin 2007年第13期52卷 1860-1863页

作者： ZHENG PengFei zhao GaoLing zhang TianBo wu LiQing WANG JianXun HAN GaoRong State Key Laboratory of Silicon Materials Department of Materials Science and Engineering Zhejiang University Hangzhou 310027China

The paper reports our novel work on chemical vapor deposition coating of titanium nitride (TiN) thin film on glass for energy saving. TiN films were deposited on glass substrates by atmospheric pressure chemical vapor deposition (APCVD) using titanium tetrachloride (TiCl4) and ammonia (NH3) as precur-sors. As a result, TiN films with a thickness of 500 nm were obtained. X-ray diffraction (XRD), scanning electron microscopy (SEM), atomic force microscopy (AFM), four-point probe method and optical spectroscopy were respectively employed to study the crystallization, microstructure, surface mor-phology, electrical and optical properties of the coated TiN films. The deposited TiN films are of NaCl structure with a preferred (200) orientation. The particles in the film are uniform. The reflectivity of the TiN coating in the near-infrared (NIR) band can reach over 40%, the visible transmittance is approxi-mately 60%, and the visible reflectivity is lower than 10%. The sheet electrical resistance is 34.5Ω. According to Drude theory, the lower sheet resistance of 34.5 Ω gives a high reflectivity of 71.5% around middle-far infrared band. The coated films exhibit good energy-saving performance.

关键词：氮化钛大气压化学元素蒸汽

Gastrointestinal Stromal Tumors in the Rectum

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Chinese Journal of Clinical Oncology 2005年第6期2卷 881-887页

作者： Hongwei Lin Yongfu Shao Dongkui Xu Dongbing zhao Haizeng zhang Tiecheng wu Department of Abdominal Surgery Cancer Hospital Peking Union MedicalCollege Chinese Academy of MedicalScience Beijing 100021 China.

OBJECTIVE To investigate the clinical and pathologic features of rectal gastrointestinal stromal tumors （GIST） and to evaluate their reasonable management. METHODS The clinical and pathological data for 19 patients with rectal GIST over the past 19 years were studied retrospectively. RESULTS The diagnosis of the 19 cases was identified by surgery and pathology. All the rectal GISTs were spindle cell type with immunohistochemical analysis showing positive reactivity for CD117 （100%） and CD34 （73.7%）. There were 4 cases of high risk, 3 cases of intermediate risk, 5 cases of low risk and 7 cases of very low risk of aggressive behavior in this study. CONCLUSION Rectal GIST, without specific symptoms in the early stage, has a low incidence and usually shows low risk of aggressive behavior. It is difficult to produce an accurate pathological diagnosis before operation and it is difficult to decide whether to save the sphincter before or during operation. Reasonable initial treatment includes trans-anal local resection as the best recommend management of low risk submucosal rectal GIST （〈3.0 cm）.

关键词： clinical pathology immunohistochemislry neoplasma of the rectum.

Edaravone rescues the lung by inhibiting lipid peroxidation and pro-inflammatory cytokines in a rat model

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Chinese Medical Journal 2014年第5期127卷 968-970页

作者： wu Zhouyang Ming Yu zhang zhao wu Jing wu Zhilin Yao Shanglong Department of Anesthesia and Critical Care Union Hospital Tongji Medical College Huazhong University of Science and TechnologyWuhan Hubei 430022 China

Acute lung injury/acute respiratory distress syndrome （ALI/ARDS） is a frequent complication in critically ill patients and cause significant mortality.1 Effects of reactive oxygen species （ROS） on alveolar epithelial cells are involved in the pathophysiology of ALI/*** can provoke DNA damage,lipid peroxidation,and activation of various genes coding for proteins involved in inflammation and cell damage.

关键词： acute lung injury edaravone free radical scavenger inflammation

Motion Performance and Mooring System of a Floating Offshore Wind Turbine

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Journal of Marine Science and Application 2012年第3期11卷 328-334页

作者： Jing zhao Liang zhang Haitao wu Institute of Ocean Renewable Energy System Harbin Engineering University Harbin 150001 China

The development of offshore wind farms was originally carried out in shallow water areas with fixed （seabed mounted） structures. However, countries with limited shallow water areas require innovative floating platforms to deploy wind turbines offshore in order to harness wind energy to generate electricity in deep seas. The performances of motion and mooring system dynamics are vital to designing a cost effective and durable floating platform. This paper describes a numerical model to simulate dynamic behavior of a new semi-submersible type floating offshore wind turbine （FOWT） system. The wind turbine was modeled as a wind block with a certain thrust coefficient, and the hydrodynamics and mooting system dynamics of the platform were calculated by SESAM soRware. The effect of change in environmental conditions on the dynamic response of the system under wave and wind loading was examined. The results indicate that the semi-submersible concept has excellent performance and SESAM could be an effective tool for floating wind turbine design and analysis.

关键词： floating offshore wind turbine semi-submersible platform platform motion mooring dynamics mooring system

Modulation of postoperative immune and inflammatory response by immune-enhancing enteral diet in gastrointestinal cancer patients

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World Journal of Gastroenterology 2001年第3期7卷 357-362页

作者： Guo Hao wu Yan Wei zhang zhao Han wu Department of General Surgery.zhongshan Hospital,ShangHai Medical University.ShangHai 200032.China Department of General Surgery Zhongshan Hospital Shanghai Medical University Shanghai 200032China. wughmc@***

AIM: To evaluate if the administration of an enteral diet supplemented with glutamine, arginine and omega-3-fatty acids modulates inflammatory and immune responses after surgery. METHODS: A prospective randomized double-blind, clinical trial was performed. Forty-eight patients with gastrointestinal cancer were randomized into two groups, one group was given an isocaloric and isonitrogenous standard diet and the other was fed with the supplemented diet with glutamine, arginine and omega-3-fatty acids. Feedings were started within 48 hours after operation, and continued until day 8. All variables were measured before operation and on postoperative day 1 and 8. Immune responses were determined by phagocytosis ability, respiratory burst of polymorphonuclear cells, total lymphocytes lymphocyte subsets, nitric oxide, cytokines concentration, and inflammatory responses by plasma levels of C-reactive protein, prostaglandin E2 level. RESULTS: Tolerance of both formula diets was *** were significant differences in the immunological and inflammatory responses between the two groups. In supplemented group, phagocytosis and respiratory burst after surgery was higher and C-reactive protein level was lower (P<0.01) than in the standard group. The supplemented group had higher levels of nitric oxide, total lymphocytes, T lymphocytes, T-helper cells, and NK cells. Postoperative levels of IL-6 and TNF-alpha were lower in the supplemented group (P <0.05). CONCLUSION: It was clearly established in this trial that early postoperative enteral feeding is safe in patients who have undergone major operations for gastrointestinal cancer. Supplementation of enteral nutrition with glutamine, arginine, and omega-3-fatty acids positively modulated postsurgical immunosuppressive and inflammatory responses.

关键词： Enteral Nutrition Gastrointestinal Neoplasms Adult Aged Arginine dosage Cytokines Double-Blind Method Enteritis Fatty Acids, Omega-3 Female Glutamine Humans Lymphocyte Count Male Middle Aged Phagocytosis Postoperative Period Prospective Studies Respiratory Burst

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沙蟋翅多型性的调控机理

昆虫知识 2009年第1期46卷 5-11,170页

作者：张保常赵章武中国农业大学农学院与生物技术学院昆虫学系北京100094

沙蟋Gryllus firmus Zera&Denno成虫的后翅有长翅和短翅2种类型,是翅多型性机理研究的极佳模式昆虫。长翅成虫从第5日龄开始迁飞,而短翅成虫的主要特点是繁殖。除了翅的表型差异外,长翅成虫的飞行肌发达,呈褐色;卵巢幼小,直到飞行停止后... 详细信息

沙蟋Gryllus firmus Zera&Denno成虫的后翅有长翅和短翅2种类型,是翅多型性机理研究的极佳模式昆虫。长翅成虫从第5日龄开始迁飞,而短翅成虫的主要特点是繁殖。除了翅的表型差异外,长翅成虫的飞行肌发达,呈褐色;卵巢幼小,直到飞行停止后(大约在10d以后)才开始发育。而短翅成虫的飞行肌退化并呈乳白色;卵巢在第4日龄就发育成熟,表现为卵巢硕大。对翅多型性机理的深入研究,将有利于了解沙蟋迁飞和扩散的内在机理,为准确地预测预报该虫的发生提供重要的理论和实际依据。文章概述沙蟋翅多型性与外界环境的相互关系,以及体内生化代谢和内分泌激素等的变化对该虫迁飞和生殖的影响和作用,进而探讨翅多型的遗传机制和进化意义等问题。

关键词：沙蟋翅多型性调控机理

Ammonia pyrolysis oxidation excited by nanosecond pulsed discharge:Global/fluid models hybrid solution

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Journal of Energy Chemistry 2025年第1期100卷 385-396页

作者： Mingming zhang Hanyu wu Qi Chen Jiaxin Yang Bonan Liu School of Mechanical Electronic and Control Engineering Beijing Jiaotong University China University of Petroleum

The kinetic characteristics of plasma-assisted oxidative pyrolysis of ammonia are studied by using the global/fluid models hybrid solution ***,the stable products of plasma-assisted oxidative pyrolysis of ammonia are *** results show that the consumption of NH3/O2and the production of N2/H2change linearly with the increase of voltage,which indicates the decoupling of nonequilibrium molecular excitation and oxidative pyrolysis of ammonia at low ***,the detailed reaction kinetics mechanism of ammonia oxidative pyrolysis stimulated by a nanosecond pulse voltage at low pressure and room temperature is *** on the reaction path analysis,the simplified mechanism is *** detailed and simplified mechanism simulation results are compared with experimental data to verify the accuracy of the simplified ***,based on the simplified mechanism,the fluid model of ammonia oxidative pyrolysis stimulated by the nanosecond pulse plasma is established to study the pre-sheath/sheath behavior and the resultant consumption and formation of key *** results show that the generation,development,and propagation of the pre-sheath have a great influence on the formation and consumption of *** consumption of NH3by the cathode pre-sheath is greater than that by the anode pre-sheath,but the opposite is true for OH and O（1S）.However,within the sheath,almost all reactions do not ***,by changing the parameters of nanosecond pulse power supply voltage,it is found that the electron number density,electron current density,and applied peak voltages are not the direct reasons for the structural changes of the sheath and ***,the discharge interval has little effect on the sheath structure and gas mixture *** research results of this paper not only help to understand the kinetic promotion of non-equilibrium excitation in the process of oxidative pyrolysis but also help to explore th

关键词： Nanosecond pulsed discharge Ammonia Oxidative pyrolysis Fluid model Global model

Bending Stiffness of Concrete-Filled Steel Tube and Its Influence on Concrete Placement Timing of Composite Beam-String Structure

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Structural Durability & Health Monitoring 2025年第1期19卷 55-75页

作者： Zhenyu zhang Quan Jin Haitao zhang zhao Liu Yuyang wu Longfei zhang Renzhang Yan CCCC Third Highway Engineering Co. Ltd.Beijing101300China School of Civil Engineering Chongqing Jiaotong UniversityChongqing400074China

When the upper chord beam of the beam-string structure(BSS)is made of concrete-filled steel tube(CFST),its overall stiffness will change greatly with the construction of concrete placement,which will have an impact on the design of the tensioning plans and selection of control measures for the *** order to accurately obtain the bending stiffness of CFST beam and clarify its impact on the mechanical properties of composite BSS during construction,the influence of some factors such as height-width ratio,wall thickness of steel tube,elasticity modulus of concrete,and friction coefficient on the bending stiffness are analyzed parametrically by the numerical simulation technology based on an actual *** calculation formula of the equivalent bending stiffness of CFST is also established through mathematical statistical ***,the equivalent bending stiffness is introduced into the construction and use stages of the composite BSS,respectively,and the mechanical properties such as prestress-tensioning control value,structural deformation,and internal force of key members are comparatively analyzed when adopting two different construction ***,the optimal construction plan of concrete placement first and then prestress-tensioning is proposed.

关键词： Concrete panels freeze-thaw damage compression-shear crack tension-shear crack