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| 1 | Dexamethasone and dextran 40 treatment of 32 patients with severe acute pancreatitis显示文摘AIM: Based on the pathogenesis of severe acute pancreatitis and our experimental studies, to investigate the effect of dexamethasone and dextran in treatment of patients with severe acute pancreatitis.METHODS: Thirty-two patients with severe acute pancreatitis were treated with 0.5-1 mg/kg per day dexamethasone for 3-5 d, and 500-1 000 mL/d of dextran 40 for 7 d, besides the routine therapy.RESULTS: After 4-8 h of treatment, abdominal pain began to be relieved; range of tenderness began to be localized in 27 patients. They were cured with nonsurgical treatment.Five of them were deteriorated, and treated with surgery.Four patients in this group died.CONCLUSION: Dexamethasone and dextran 40 block the pathologic process of severe acute pancreatitis through inhibition of inflammatory mediators and improvement of microcirculation disorders respectively. | Zi-FaWang ChangLiu YiLu RuiDong ]unXu LiangYu Ying-MinYao Qing-GuangLiu Cheng-EnPan | 2004 | World Journal of Gastroenterology2004，10，9： | 11 |
| 2 | Quaternion-based Nonlinear Trajectory Tracking Control of a Quadrotor Unmanned Aerial Vehicle显示文摘At present, most controllers of quadrotor unmanned aerial vehicles(UAVs) use Euler angles to express attitude. These controllers suffer a singularity problem when the pitch angle is near 90?, which limits the maneuverability of the UAV. To overcome this problem, based on the quaternion attitude representation, a 6 degree of freedom(DOF) nonlinear controller of a quadrotor UAV is designed using the trajectory linearization control(TLC) method. The overall controller contains a position sub-controller and an attitude sub-controller. The two controllers regulate the translational and rotational motion of the UAV, respectively. The controller is improved by using the commanded value instead of the nominal value as the input of the inner control loop. The performance of controller is tested by simulation before and after the improvement, the results show that the improved controller is better. The proposed controller is also tested via numerical simulation and real flights and is compared with the traditional controller based on Euler angles. The test results confirm the feasibility and the robustness of the proposed nonlinear controller. The proposed controller can successfully solve the singularity problem that usually occurs in the current attitude control of UAV and it is easy to be realized. | ZHA Changliu DING Xilun YU Yushu WANG Xueqiang | 2017 | Chinese Journal of Mechanical Engineering2017，30，1： | 5 |
| 3 | C-banding Pattern and Nucleolar Organizer Regions of Amphioxus Branchiostoma belcheri tsingtauense Tchang et Koo, 1936显示文摘 | Shicui Zhang Changliu Wang Jiansong Chu | 2004 | Genetica2004，，1： | 1 |
| 4 | C-banding pattern and nucleolar organizer regions of Cynoglossus semilaevis Günther, 1873显示文摘乐队 C 模式和 Cynoglossus semilaevis 的中期染色体的核仁的组织者区域被报导。在包括性染色体的对的所有染色体的 interstital 区域有积极 C 乐队,和 6 th 和第 12 个染色体完全在大多数情况中被染色。一些染色体例如第一,第二,第 7,第 8,第 9 和第 10 对在 centromeric 或远侧的结束显示出 C 乐队。染色质占据的到此为止的乐队 C 30.03% 全部的染色体出现在 C。semilaevis,它类似于象 Mixophyes fasciolatus (30.2%) 和 M 那样的两栖动物的。schevilli (20.7%) ,但是比头索动物 Branchiostoma belcher i (54.3%) 的相当低。银染色揭示了位于染色体 2 的 telomeric 区域的核仁的组织者区域(NORs ) 的单个对。有在脊椎动物观察的异种染色质的 NORs 的协会也发生在 C。染色体 2 的 telomeric 区域总是是的半 laevisas 与乐队 C 断然染色了。 | WU Di ZHANG Shicui ZHUANG Zhimeng PANG Qiuxiang WANG Changliu WAN Ruijing | 2006 | Progress in Natural Science:Materials International2006，16，7： | 1 |
| 5 | Effect of pro- cessing conditions on properties of ramie roving rein- forced polypropylene composite显示文摘 | BI Songmei HONG Jun CHU Changliu | 2011 | Advanced Materials Research2011，，： | 1 |
| 6 | Effect of pro- cessing conditions on properties of ramie roving rein- forced polypropylene composite 显示文摘 | BI Songmei HONG Jun CHU Changliu | 2011 | Advanced Textile Materials2011，，3： | 1 |
| 7 | Effect of processing conditons on properties of ramie roving reinforced polypropylene composite显示文摘 | Bi Songmei Jun Hong Chu Changliu | 2011 | Advanced Materials Research2011，，332334： | 1 |
| 8 | Synthesis and Hydrogen Storage in Single-walled Carbon Nanotubes显示文摘Single-walled carbon nanotubes (SWNTs) were synthesized by a hydrogen arc discharge method. A high yield of gram quantity of SWNTs per hour was achieved. Tow kinds of SWNT products: web-like substance and thin films in large slices were obtained. Results of resonant Raman scattering measurements indicate that the SWNTs prepared have a wider diameter distribution and a larger mean diameter. Hydrogen uptake measurements of the two kinds of SWNT samples (both as prepared and pretreated) were carried out using a high pressure volumetric method, respectively. And a hydrogen storage capacity of 4 wt pct could be repeatedly achieved for the suitably pretreated SWNTs, which indicates that SWNTs may be a promising hydrogen storage material. | ChangLIU HuimingCHENG | 2002 | Journal of Materials Science & Technology2002，18，2： | 0 |
| 9 | 具有宽频带光管理的热致变色水凝胶在智能窗上的应用显示文摘通过窗户来控制太阳能传输可以有效降低建筑能耗。然而,现有的显色技术在相变材料可调谐消光的情况下,调节太阳增益的能力还不够理想。本文提出了一种通过控制颗粒尺寸和内部结构来调节光散射行为,从而优化温度响应的水凝胶颗粒光学透过率调制范围的方法。 | Xin-HaoLi ChangLiu Shien-PingFeng Nicholas XuanlaiFang | 2018 | 家电科技2018，0，12： | 0 |
| 10 | 信息物理系统专题简介显示文摘在信息物理系统(cyber-physical systems,CPS)中,计算、网络、信息元素和物理元素彼此深刻交织在一起,以促进信息物理元素的互动和数据敏感的自动决策.面向CPS的设计方法已经成功部署到许多工业领域,并且将传统工业环境转变成数字化、自适应化、网络化和基于知识的集成环境,它们俨然已经成为第四次工业革命的核心.CPS的研究利用了系统工程、控制、计算机、网络、电子电气、工业工程等领域的知识,以处理多个参与系统的联合动态优化.然而,CPS可能会在结构上发生演变,并在其生命周期中表现出强大的可重构性.这种结构上的演变. | Shiyan HU Changliu LIU Vincenzo PIURI | 2022 | 中国科学:信息科学2022，52，2： | 0 |
| 11 | 协作型工业机器人如何更智能?显示文摘在现代工厂中,工人和机器人是两大主要劳动力。出于安全考虑,机器人通常被限制在金属笼中与人分离开,而这无疑限制了生产力,以及生产线的灵活性。近年来,人们开始将注意力的焦点投向移除笼子的方向上,从而使得人类和机器人可以协力构建一个人机共存的工厂。 | Changliu Liu Masayoshi Tomizuka | 2018 | 机器人产业2018，0，1： | 0 |
| 12 | Construction and characterization of chimeric BHIV (BIV/HIV-1) viruses carrying the bovine immunodeficiency virus gag gene显示文摘AIM: To explore the possibility of the replacement of the gag gene between human immunodeficiency virus and bovine immunodeficiency virus, to achieve chimeric virions,and thereby gain a new kind of AIDS vaccine based on BHIV chimeric viruses.METHODS: A series of chimeric BHIV proviral DNAs differing in the replacement regions in gag gene were constructed, and then were transfected into 293T cells. The expression of chimeric viral genes was detected at the RNA and protein level. The supematant of 293T cell was ultra centrifuged to detect the probable chimeric virion. Once the chimeric virion was detected, its biological activities were also assayed by infecting HIV-sensitive MT4 cells.RESULTS: Four chimeric BHIV proviral DNAs were constructed. Genes in chimeric viruses expressed correctly in transfected 293T cells. All four constructs assembled chimeric virions with different degrees of efficiency. These virions had complete structures common to retroviruses and packaged genomic RNAs, but the cleavages of the precursor Gag proteins were abnormal to some extent. Three of these virions tested could attach and enter into MT4 cells, and one of them could complete the course of reverse transcription. Yet none of them could replicate in MT4 cells.CONCLUSION: The replacement of partial gag gene of HIV with BIV gaggene is feasible. Genes in chimeric BHIVs are accurately expressed, and virions are assembled. These chimeric BHIVs (proviral DNA together with virus particles) have the potential to become a new kind of HIV/AIDS vaccine. | Yi-XinZhu ChangLiu Xin-LeiLiu Wen-TaoQiao Qi-MinChen YiZeng Yun-QiGeng | 2005 | World Journal of Gastroenterology2005，11，17： | 0 |
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