|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Ultrasound-Guided Transmuscular Quadratus Lumbar Block Reduces Opioid Consumption after Laparoscopic Partial Nephrectomy显示文摘Objectives Transmuscular quadratus lumborum block(TQLB)may provide postoperative analgesia in patients undergoing intraperitoneal surgeries.The purpose of this study was to examine the potential efficacy of TQLB among patients undergoing retroperitoneal procedures,such as the laparoscopic partial nephrectomy(LPN).Methods This prospective,randomized,controlled study was conducted from August 2017 to November 2018 at Peking Union Medical College Hospital(Beijing,China).Patients who were scheduled for a LPN,aged 18・70 years old with an ASA physical status score of I-II were randomly assigned to receive either TQLB with 0.6 ml/kg of 0.5%ropivacaine plus general anesthesia(TQLB group)or general anesthesia alone(control group).Patient-controlled intravenous analgesia with morphine was initiated immediately upon surgery completion.The primary outcome was the cumulative consumption of morphine within 8 h after surgery.The secondary outcome included postoperative consump廿ons of morphine at other time points,pain score at rest and during activity,postoperative nausa and vomitting(PONV),and recovery related parameters.Results Totally 30 patients per group were recruited in the study.The 8 h consumption of morphine was lower in theTQLB group than in the control group(median,0.023 mg/kg vs.0.068 mg/kg,U=207.5,P<0.001).No significant differences were observed in postoperative pain scores between the two groups.Patients in the TQLB group had fewer episodes of PONV(20%vs.47%,χ2=4.&P=0.028)in the first 24 h after surgery and higher scores for quality of recovery(mean,13&6 vs.131.9,t=-2.164,P=0.035)120 h after surgery than the controls.Conclusions TQLB resulted in an opioid-sparing effect during the early postoperative period following LPN,as well as a lower incidence of PONV and improved quality of recovery. | Xulei Cui Xu Li Minna Li Yuelun Zhang Yi Xie Weigang Yan Yushi Zhang Zhigang Ji Yuguang Huang | 2020 | Chinese Medical Sciences Journal2020，35，4： | 10 |
| 2 | New Developments in Maritime Communications: a Comprehensive Survey显示文摘This paper summarizes the requirements for modern maritime wireless communication networks in the marine environments including the sea-to-sea and sea-to-shore communication scenarios.The existing maritime wireless communication systems are presented and the development of the state-of-the-art maritime communication systems is surveyed.Furthermore,a hierarchical and integrated maritime network architecture is proposed to satisfy the increasing various classes of services which demand different Quality of Service(QoS).Finally,the open issues for further development of maritime communications are identified. | Chen Weigang Yang Jinsheng Ma Jianguo Li Si | 2012 | China Communications2012，9，2： | 7 |
| 3 | Heterogeneous uptake of nitrogen dioxide on Chinese mineral dust显示文摘Mineral dust is one of the major aerosols in the atmosphere.To assess its impact on trace atmospheric gases,in this work we present a laboratory study of the effect of temperature on the heterogeneous reaction of NO_2 on the surface of ambient Chinese dust over the temperature range from 258 to 313 K.The results suggest that nitrogen dioxide could mainly be adsorbed on these types of Chinese mineral dust reversibly with little temperature dependence.Similar to a previous study on NO_2 uptake on mineral aerosols,the uptake coefficients are mainly on the order of 10^(-6) for the Chinese dust,when BET areas are taken into account.HONO was observed as a product,and its formation and decomposition on Chinese mineral dust during the uptake processes were also studied.The complete dataset from this study was compiled with previous literature determinations.Atmospheric implications of the heterogeneous reaction between NO_2 and mineral dust are also discussed,in an effort to understand this important heterogeneous process. | Li Zhou Weigang Wang Siqi Hou Shengrui Tong Maofa Ge | 2015 | Journal of Environmental Sciences2015，27，12： | 6 |
| 4 | Light absorption properties and potential sources of brown carbon in Fenwei Plain during winter 2018–2019显示文摘A distinctive kind of organic carbon aerosol that could absorb ultraviolet-visible radiation is called brown carbon(Br C),which has an important positive influence on radiative budget and climate change.In this work,we reported the absorption properties and potential source of Br C based on a seven-wavelength aethalometer in the winter of 2018–2019 at an urban site of Sanmenxia in Fenwei Plain in central China.Specifically,the mean value of Br C absorption coefficient was 59.6±36.0 Mm^(-1) at 370 nm and contributed 37.7%to total absorption,which made a significant impact on visibility and regional environment.Absorption coefficients of Br C showed double-peak pattern,and Br C had shown small fluctuations under haze days compared with clean days.As for the sources of Br C,Br C absorption coefficients expressed strong correlations with element carbon aerosols and primary organic carbon aerosols,indicating that most of Br C originated from primary emissions.The linear correlations between trace metal elements(K,As,Fe,Mn,Zn,and Pb)and Br C absorption coefficients further referred that the major sources of Br C were primary emissions,like coal burning,biomass burning,and vehicle emissions.The moderate relationship between Br C absorption coefficients and secondary organic aerosols suggested that secondary production of Br C also played an important role.The 120 hr backward air mass trajectories analysis and concentration-weighted trajectories analysis were also used to investigate potential sources of Br C in and around this area,which inferred most parts of Br C were derived from local emissions. | Wenyu Zhang Weigang Wang Jie Li Shuangliang Ma Chaofan Lian Kun Li Bo Shi Mingyuan Liu Yanyu Li QingQing Wang Yele Sun Shengrui Tong Maofa Ge | 2021 | Journal of Environmental Sciences2021，33，4： | 6 |
| 5 | Fatigue behavior of direct laser deposited Ti-6.5Al-2Zr-1Mo-1V titanium alloy and its life distribution model显示文摘The present work aims to investigate the fatigue behavior of Direct Laser Deposition(DLD) Ti-6.5 Al-2 Zr-1 Mo-1 V titanium alloy under constant amplitude stress. 22 pieces of DLD Ti-6.5 Al-2 Zr-1 Mo-1 V titanium alloy standard cylinder specimens were tested under a stress level of 800 MPa with a stress ratio of 0.06. Fatigue fractography and fatigue life data were obtained.Through the fracture surface analysis, the specimens were divided into two categories in accordance with the location of crack initiation and defect types. Comparison of fatigue life and behavior between two specimen types was given, which was followed by a discussion about the impact of defect type, size and position on the fatigue life of the specimen. The fatigue test results also show a large variation of fatigue life. To illustrate the statistical characteristics of the fatigue life, probabilistic analysis was performed, and a novel bimodal lognormal model was established. The model has a good fit with the experimental data and can reduce the scatter of the fatigue life significantly. | Xiaofan HE Tianshuai WANG Xiaobo WANG Weigang ZHAN Yuhai LI | 2018 | Chinese Journal of Aeronautics2018，31，11： | 5 |
| 6 | Stable two-sided matching of slot allocation in airport collaborative decision making by top trading cycles mechanism显示文摘The problem of capacity shortage in some airports needs to be dealt with sustainable solutions including a more efficient use of the existing runway slots at the airports. The Collaborative Decision Making(CDM) is an important approach applied to Air Traffic Management(ATM)to achieve this efficient use of the slots allocation. Using the Matching approach for two-sided markets of Game theory, the Top Trading Cycle CDM(TTC-CDM) algorithm developed in this research is an extension of the CDM approach aggregating the Ground Delay Program(GDP)of the air sector. The paper compared the developed TTC-CDM model to the existing models such as the conventional Compression algorithm in CDM, the Trade Cycle algorithm and the Deferred Acceptance CDM(DA-CDM) model to evaluate the performance of the proposed model. Through a case study, the results show the effective application of TTC-CDM model to slot allocation in ATM and also presents the advantage of considering the preferences of airport managers beside ATC controllers and airlines in the decision processing. | Marcio Augusto DA SILVA SOUZA Weigang LI Reinaldo Crispiniano GARCIA | 2018 | Chinese Journal of Aeronautics2018，31，3： | 5 |
| 7 | BOOTSTRAPPING FOR EXTRACTING RELATIONS FROM LARGE CORPORA显示文摘A new approach of relation extraction is described in this paper. It adopts a bootstrap- ping model with a novel iteration strategy, which generates more precise examples of specific relation. Compared with previous methods, the proposed method has three main advantages: first, it needs less manual intervention; second, more abundant and reasonable information are introduced to represent a relation pattern; third, it reduces the risk of circular dependency occurrence in bootstrapping. Scalable evaluation methodology and metrics are developed for our task with comparable techniques over TianWang 100G corpus. The experimental results show that it can get 90% precision and have excellent expansibility. | Li Weigang Liu Ting Li Sheng | 2008 | Journal of Electronics(China)2008，25，1： | 5 |
| 8 | Development and application of the multi-wavelength cavity ring-down aerosol extinction spectrometer显示文摘To better characterize the optical properties of atmospheric aerosols, the multi-wavelength cavity ring-down aerosol extinction spectrometer(MCRD-AES) is developed and applied in this study. By using tunable light source and four parallel cavities, the MCRD-AES covers a wide and atmospherically relevant wavelength range from 360 to 663 nm. Four wavelengths(375 nm, 440 nm, 532 nm, and 620 nm) are particularly tested with ammonium sulfate and nigrosine. The refractive index values obtained from this study agree well with literature data. The stability and accuracy of the MCRD-AES are tested, and the minimum detectable extinction coefficient is 0.5 1/Mm. The high sensitivity, high precision, and wavelength changeable of MCRD-AES indicate its great application prospect in comprehensively quantifying the optical properties of atmospheric aerosols. | Junling Li Weigang Wang Kun Li Wenyu Zhang Maofa Ge Chao Peng | 2019 | Journal of Environmental Sciences2019，31，2： | 4 |
| 9 | Sequencing barcode construction and identification methods based on block error-correction codes显示文摘Multiplexed sequencing relies on specific sample labels,the barcodes,to tag DNA fragments belonging to different samples and to separate the output of the sequencers.However,the barcodes are often corrupted by insertion,deletion and substitution errors introduced during sequencing,which may lead to sample misassignment.In this paper,we propose a barcode construction method,which combines a block error-correction code with a predetermined pseudorandom sequence to generate a base sequence for labeling different samples.Furthermore,to identify the corrupted barcodes for assigning reads to their respective samples,we present a soft decision identification method that consists of inner decoding and outer decoding.The inner decoder establishes the hidden Markov model(HMM)for base insertion/deletion estimation with the pseudorandom sequence,and adapts the forward-backward(FB)algorithm to output the soft information of each bit in the block code.The outer decoder performs soft decision decoding using the soft information to effectively correct multiple errors in the barcodes.Simulation results show that the proposed methods are highly robust to high error rates of insertions,deletions and substitutions in the barcodes.In addition,compared with the inner decoding algorithm of the barcodes based on watermarks,the proposed inner decoding algorithm can greatly reduce the decoding complexity. | Weigang Chen Lixia Wang Mingzhe Han Changcai Han Bingzhi Li | 2020 | Science China(Life Sciences)2020，63，10： | 4 |
| 10 | 6G Service Coverage with Mega Satellite Constellations显示文摘The rapid development and continuous updating of the mega satellite constellation(MSC)have brought new visions for the future 6G coverage extension, where the global seamless signal coverage can realize ubiquitous services for user terminals. However, global traffic demands present nonuniform characteristics. Therefore, how to ensure the on-demand service coverage for the specific traffic demand, i.e., the ratio of traffic density to service requirement per unit area, is the core issue of 6G wireless coverage extension exploiting the MSC. To this regard, this paper first discusses the open challenges to reveal the future direction of 6G wireless coverage extension from the perspective of key factors affecting service coverage performance, i.e., the network access capacity, space segment capacity and their matchingrelationship. Furthermore, we elaborate on the key factors affecting effective matchings of the aforementioned aspects, thereby improving service coverage capability. | Min Sheng Di Zhou Weigang Bai Junyu Liu Jiandong Li | 2022 | China Communications2022，19，1： | 4 |
| 11 | Knudsen cell and smog chamber study of the heterogeneous uptake of sulfur dioxide on Chinese mineral dust显示文摘The heterogeneous uptake processes of sulfur dioxide on two types of Chinese mineral dust(Inner Mongolia desert dust and Xinjiang sierozem)were investigated using both Knudsen cell and smog chamber system.The temperature dependence of the uptake coefficients was studied over a range from 253 to 313 K using the Knudsen cell reactor,the initial uptake coefficients decreased with the increasing of temperature for these two mineral dust samples,whereas the steady state uptake coefficients of the Xinjiang sierozem increased with the temperature increasing,and these temperature dependence functions were obtained for the first time.In the smog chamber experiments at room temperature,the steady state uptake coefficients of SO2decreased evidently with the increasing of sulfur dioxide initial concentration from 1.72×1012to 6.15×1012mol/cm3.Humid air had effect on the steady state uptake coefficients of SO2onto Inner Mongolia desert dust.Consequences about the understanding of the uptake processes onto mineral dust samples and the environmental implication were also discussed. | Li Zhou Weigang Wang Yanbo Gai Maofa Ge | 2014 | Journal of Environmental Sciences2014，26，12： | 3 |
| 12 | Continuous and comprehensive atmospheric observations in Beijing:a station to understand the complex urban atmospheric environment显示文摘Due to profound impact on climate and human health,air quality has attracted attention from all levels of the civil society.The key step in the provision of required tools for the society to tackle the complex air quality problem is to characterize it in a comprehensive manner with a long-term perspective.Here,we describe a continuous and comprehensive observation station and its accompanying state-ofthe-art instrumentation that was established to investigate the complex urban atmospheric environment in a rapidly developing Chinese Megacity.The station,located in downtown Beijing,aims to study air quality by identifying the major atmospheric pollutants and key processes determining their formation and loss mechanisms.A few hundreds of parameters are continuously measured with the state-of-the-art instruments,including trace gas concentrations,aerosol particle size distributions,and mass concentrations,covering aerosol particle chemical composition from molecules to micrometer-sized aerosol particles.This produced long-term,comprehensive big data with around 1�10^(11)bytes per year.In this paper,we provide an overview on the facilities of the station,the instrumentation used,the workflow of continuous observations and examples of results from 2018 to 2019 and a basis for establishing a modern long-term,comprehensive atmospheric urban observation station in other megacities. | Yongchun Liu Chao Yan Zemin Feng Feixue Zheng Xiaolong Fan Yusheng Zhang Chang Li Ying Zhou Zhuohui Lin Yishou Guo Ying Zhang Li Ma Wenshuo Zhou Zhikun Liu Lubna Dada Kaspar Dallenbach Jenni Kontkanen Runlong Cai Tommy Chan Biwu Chu Wei Du Lei Yao Yonghong Wang Jing Cai Juha Kangasluoma Tom Kokkonen Joni Kujansuu Anton Rusanen Chenjuan Deng Yueyun Fu Rujing Yin Xiaoxiao Li Yiqun Lu Yiliang Liu Chaofan Lian Dongsen Yang Weigang Wang Maofa Ge Yuesi Wang Douglas R.Worsnop Heikki Junninen Hong He Veli-Matti Kerminen Jun Zheng Lin Wang Jingkun Jiang Tuukka Petaja Federico Bianchi Markku Kulmala | 2020 | Big Earth Data2020，4，3： | 3 |
| 13 | Safe conservation and utilization of peanut germplasm resources in the Oil Crops Middle-term Genebank of China显示文摘Peanut(Arachis hypogaea L.)is an important oil and cash crop in the world.Peanut germplasm collected in China are abundant,which provides important material guarantee for peanut breeding and industrial development.Here,the safe conservation technology and indicators of peanut germplasm resources in the Oil Crops Middleterm Genebank of China were expounded from three processes of storage,monitoring,reproduction and renewal.We summarized and reviewed the situation of conservation and utilization of peanut germplasm resources in the Middle-term Genebank in the past 20 years.The future research direction of peanut resources in the Oil Crops Middle-term Genebank of China is prospected. | Xiaojing Zhou Xiaoping Ren Huaiyong Luo Li Huang Nian Liu Weigang Chen Yong Lei Boshou Liao Huifang Jiang | 2022 | Oil Crop Science2022，7，1： | 3 |
| 14 | Kinetics of oxidation of dimethyl trisulfide by potassium permanganate in drinking water显示文摘Metabolites of algae such as geosmin, 2- methylisoborneol etc. are reported to induce pungent odors into drinking water and attract additional scientifc attention. Recently, in China, taste and odor outbreaks in drinking water supply have become increasingly common. In source water affected by eutrophication, dimethyl trisulfide, speculated to be produced by decayed algae, was found to be the source of taste and odor issues and can be removed effectively by usual oxidation agents. In this experimental study, batch scale tests were carried out focusing on the removal of dimethyl trisulfide. Reaction kinetics of dimethyl trisulfide oxidized by potassium permanganate in water had been studied; influence factors such as pH, organic substrate, other existed taste, and odor contaminant in equivalent concentration were also dis- cussed. Results showed that dimethyl trisulfide can be removed by potassium permanganate efficiently; the ratio can reach more than 70% with oxidant dosage of 4 mg. L~ and contact time prolonged to 120 min. The dimethyl trisulfide decomposition followed a second-order kinetics pattern with a rate constant k -- 0.00213 L.(min.mg)-1. Typically, the degradation rate of dimethyl trisulfide was increased with the increasing KMnO4 dosage, but dramatically dropped with the increasing levels of humic acid (1.8-4.5 mg. L-1) and other odor-causing compounds (e.g. fl-cyclocitral, 0-1886.0 pg.L-1). Solution pH (5.2- 9.0) and initial dimethyl trisulfide concentration did not significantly affected the degradation. This study demon- strates that KMnO4 oxidation is an effective option to remove dimethyl trisulfide from water. | Xiaoyan MA Shifei HU Hongyu WANG Jun LI Jing HUANG Yun ZHANG Weigang LU Qingsong LI | 2012 | Frontiers of Environmental Science & Engineering2012，6，2： | 3 |
| 15 | FEEDBACK LINEARIZATION CONTROL FOR ELECTRONICALLY CONTROLLABLE CLUTCH OF VEHICLE显示文摘An investigation is made to the friction chutch engagement control of automotive AMT systems based on a nonlinear dynamic model with double inputs. According to friction torque transmission characteristics during clutch engagement, an equivalent, fully controllable and linearized model and the feedback linearization control are derived from the original system with nonlinearities via homomorphic transforms. By the resulting mathematical modeling, computer simulations are made both for the original nonlinear and feedback linearized systems with incorporation of ordinary PID controllers to follow ideal vehicle dynamic responses. It has been shown by comparison between the two sets of numerical results that the feedback linearization control designed for the nonlinear system is of fine accuracy and robustness in model tracking behaviors of clutch engagements. | Chen Li Zhang Jianwu Huang Weigang Shanghai Jiaotong University Gao Chunming Shanghai Clutch Factory | 1999 | Chinese Journal of Mechanical Engineering1999，12，4： | 3 |
| 16 | Interactive Multi-objective Optimization Design for the Pylon Structure of an Airplane显示文摘一架飞机的塔门结构是很复杂的,并且它的高保真分析是相当费时间的。如果以后的偏爱优化算法被用来解决这个问题,巨大的时间消费将在由于为算法需要的大量评估设计实践是不能接受的。那么,新交互优化 algorithminteractive 多客观的粒子群优化(IMOPSO ) 被介绍。IMOPSO 有效、简单、合用。决策人能方便地在 IMOPSO 决定精确偏爱。IMOPSO 被用来执行一架飞机的塔门结构优化设计,并且一个令人满意的图案在仅仅 IMOPSO 进化的 12 代以后被完成。与原来的设计相比,令人满意的设计的最大的排水量被减少,并且令人满意的设计的团为 22% 被减少。 | An Weigang Li Weiji | 2007 | Chinese Journal of Aeronautics2007，20，6： | 3 |
| 17 | Features of the Excess Adsorption Isotherms of High-Pressure Methane Adsorption on Coal and Simulation Model显示文摘不同等级的四件煤样品被选择执行高压的甲烷(CH4 ) 的吸附测量。测量的最高的平衡压力超过 20 MPa。与测量结果和理论分析结合了,为山峰的原因或出现在过量吸附等温线的最大的吸附能力被解释。山峰出现的规则被总结。然后基于煤毛孔结构的特征,吸附高压的气体,煤表面的小宇宙的相互作用关系和 CH4 分子展示,并且 coalbed 甲烷水库在煤吸附上调节三个理论假设高压的 CH4 被建议。根据这些理论假设,此后, Ono-Kondo 格子模型为简化和变丑被处理。随后,在煤上为高压的 CH4 吸附的过量吸附等温线建模的方程被获得。通过测量数据上的确认,恰当的结果显示使用 Ono-Kondo 格子模式在煤上为高压的 CH4 吸附的过量吸附等温线建模是可行的。 | CUI Yongjun ZHANG Dengfeng ZHANG Qun LIN Weigang SONG Wenli LI Yuhui JIANG Wenping | 2010 | Acta Geologica Sinica(English Edition)2010，84，6： | 3 |
| 18 | Hollow Co_9S_8 from metal organic framework supported on rGO as electrode material for highly stable supercapacitors显示文摘Metal sulfides as a feasible candidate with high specific capacitance for supercapacitors suffer from sluggish ion/electron transport kinetics and rapid capacitance fading. Herein, we demonstrate a method to fabricate a composite of reduced graphene oxide(rGO) with hollow Co_9S_8 derived from metal organic framework(MOF). Due to the combined highly conductive rGO substrates and hollow shell, the prepared r GO/Co_9S_8 composite exhibits a high specific capacitance of 575.9 F/g at 2 A/g and 92.0% capacitance retention after 9000 cycles. Its excellent electrochemical performance provides great promise for application, and this versatile method can be extended to prepare other similar nanocomposite. | Peng Wang Chunyang Li Weigang Wang Jing Wang Yusong Zhu Yuping Wu | 2018 | Chinese Chemical Letters2018，29，4： | 3 |
| 19 | An exploratory study of three-dimensional MP-PIC-based simulation of bubbling fluidized beds with and without baffles显示文摘 | Shuai Yang Hao Wu Weigang Lin Hongzhong Li Qingshan Zhua | 2018 | Particuology2018，16，4： | 3 |
| 20 | First and Others credit-assignment schema for evaluating the academic contribution of coauthors显示文摘共同作者学术贡献分配模式提供了固定或灵活的信用分配公式,并广泛应用于评估科学出版物共同作者的贡献。本文提出了一种新颖的'第一和其他(First and Others,F&O)合作者'分配模式。通过引入调整参数α和权重β,使得信用分配具备以下新的属性:(1)通过修改公式(调整参数α)或强调单个作者贡献(调整权重β)体现学术贡献分配的灵活性和适用性;(2)将第一作者的贡献与其他作者分开计算,第二作者的贡献会根据α参数的变化,呈现出拐点。文中提出相应定理和证明,揭示了'第一和其他(F&O)合作者'分配模式新的特性,应是对文献计量学基本理论的贡献。F&O模式亦可应用于'强调第一作者学术贡献'的策略。通过对一组来自化学、医学、心理学和哈佛-芝加哥调查数据的应用,F&O模式与其他方法进行了分析比较,若干测定系数的优化显示出本文方法的先进性。 | Li WEIGANG | 2017 | Frontiers of Information Technology & Electronic Engineering2017，18，2： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员