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| 1 | Osteoarticular manifestations of human brucellosis:A review显示文摘Brucellosis is a common global zoonotic disease, which is responsible for a range of clinical manifestations. Fever, sweating and musculoskeletal pains are observed in most patients. The most frequent complication of brucellosis is osteoarticular involvement, with 10% to 85% of patients affected. The sacroiliac(up to 80%) and spinal joints(up to 54%) are the most common affected sites.Spondylitis and spondylodiscitis are the most frequent complications of brucellar spinal involvement. Peripheral arthritis, osteomyelitis, discitis, bursitis and tenosynovitis are other osteoarticular manifestations, but with a lower prevalence. Spinal brucellosis has two forms: focal and diffuse. Epidural abscess is a rare complication of spinal brucellosis but can lead to permanent neurological deficits or even death if not treated promptly. Spondylodiscitis is the most severe form of osteoarticular involvement by brucellosis, and can have single-or multifocal involvement. Early and appropriate diagnosis and treatment of the disease is important in order to have a successful management of the patients with osteoarticular brucellosis. Brucellosis should be considered as a differential diagnosis for sciatic and back pain, especially in endemic regions. Patients with septic arthritis living in endemic areas also need to be evaluated in terms of brucellosis. Physical examination, laboratory tests and imaging techniques are needed to diagnose the disease. Radiography, computed tomography, magnetic resonance imaging(MRI) and bone scintigraphy are imaging techniques for the diagnosis of osteoarticular brucellosis. MRI is helpful to differentiate between pyogenic spondylitis and brucellar spondylitis. Drug medications(antibiotics)and surgery are the only two options for the treatment and cure of osteoarticular brucellosis. | Seyed Mokhtar Esmaeilnejad-Ganji Seyed Mohammad Reza Esmaeilnejad-Ganji | 2019 | World Journal of Orthopedics2019，10，2： | 52 |
| 2 | Anterior muscle sparing approach for total hip arthroplasty显示文摘The purpose of this review is to examine the validity of positive claims regarding the direct anterior approach(DAA) with a fracture table for total hip arthroplasty. Recent literature regarding the DAA was searched and specific claims investigated including improved early outcomes, speed of recovery, component placement, dislocation rates, and complication rates. Recent literature is positive regarding the effects of total hip arthroplasty with the anterior approach. While the data is not definitive at present, patients receiving the anterior approach for total hip arthroplasty tend to recover more quickly and have improved early outcomes. Component placement with the anterior approach is more often in the 'safe zone' than with other approaches. Dislocation rates tend to be less than 1% with the anterior approach. Complication rates vary widely in the published literature. A possible explanation is that the varianceis due to surgeon and institutional experience with the anterior approach procedure. Concerns remain regarding the 'learning curve' for both surgeons and institutions. In conclusion, it is not a matter of should this approach be used, but how should it be implemented. | Joseph T Moskal Susan G Capps John A Scanelli | 2013 | World Journal of Orthopedics2013，4，1： | 47 |
| 3 | Treatment of large lumbar disc herniation with percutaneous ozone injection via the posterior-lateral route and inner margin of the facet joint显示文摘AIM:To evaluate the effects of percutaneous ozone injection via the posterior-lateral route and inner margin of the facet joint in the treatment of large lumbar disc herniation.METHODS:Fifty-eight patients with large lumbar disc herniation were treated with percutaneous injection of ozone via the posterior-lateral route and inner margin of the facet joint under digital subtraction angiography.Second injections were performed 5 d after the initial injection.All patients were followed up for 6-18 mo.A modified Macnab method was used for assessing clinical outcomes after oxygen-ozone therapy.RESULTS:Successful puncture was obtained in all patients.The overall efficacy was 91.4;the outcome was the excellent in 37 cases(63.8),good in 16 cases(27.6) and fair/poor in 5 cases(8.6) according to the Macnab criteria.No severe complications were found throughout this study.CONCLUSION:Percutaneous intradiscal ozone injection via the posterior-lateral route and inner margin of the facet joint is effective and safe for treatment of large lumbar disc herniation. | Wei Lu,Yan-Hao Li,Xiao-Feng He,Department of Interventional Radiology,Nanfang Hospital,Southern Medical University,Guangzhou 510515,Guangdong Province,China | 2010 | World Journal of Radiology2010，2，3： | 31 |
| 4 | Deep reinforcement learning-based joint task offloading and bandwidth allocation for multi-user mobile edge computing显示文摘The rapid growth of mobile internet services has yielded a variety of computation-intensive applications such as virtual/augmented reality. Mobile Edge Computing (MEC), which enables mobile terminals to offload computation tasks to servers located at the edge of the cellular networks, has been considered as an efficient approach to relieve the heavy computational burdens and realize an efficient computation offloading. Driven by the consequent requirement for proper resource allocations for computation offloading via MEC, in this paper, we propose a Deep-Q Network (DQN) based task offloading and resource allocation algorithm for the MEC. Specifically, we consider a MEC system in which every mobile terminal has multiple tasks offloaded to the edge server and design a joint task offloading decision and bandwidth allocation optimization to minimize the overall offloading cost in terms of energy cost, computation cost, and delay cost. Although the proposed optimization problem is a mixed integer nonlinear programming in nature, we exploit an emerging DQN technique to solve it. Extensive numerical results show that our proposed DQN-based approach can achieve the near-optimal performance。 | Liang Huang Xu Feng Cheng Zhang Liping Qian Yuan Wu | 2019 | Digital Communications and Networks2019，5，1： | 25 |
| 5 | Cold metal transfer(CMT) technology-An overview显示文摘Cold Metal Transfer technology has revolutionized the welding of dissimilar metals and thicker materials by producing improved weld bead aesthetics with controlled metal deposition and low heat-input. In this study, the process, weld combinations, laser-CMT hybrid welding and applications of CMT welding are critically reviewed. Microstructure and other weld characteristics have been discussed at length for various base metal combinations. Particularly, the welding of aluminium and steel with better results has been possible with CMT Welding. The results reviewed in this article indicate that the CMT-Laser hybrid welding is more preferable to Laser or Laser hybrid welding. CMT welding has found applications in automobile industries, defence sectors and power plants as a method of additive manufacturing. | S.Selvi A.Vishvaksenan E.Rajasekar | 2018 | Defence Technology(防务技术)2018，14，1： | 22 |
| 6 | Poisson-Gumbel Mixed Compound Distribution and its application显示文摘With the development of offshore engineering, the joint probability study for extreme sea environments has been a subject of increasing interest for both mathematicians and engineers. However, the conventional multivariate probability distribution models do not describe the distribution of the occurrences of extreme sea states induced by typhoon, hurricane or winter storm, and thus fail to reflect the probability characteristics of sea environments in all the aspects. Extreme sea environments are typically to be found in storms like typhoon, and the occurrences of such storms in certain sea areas, varying from year to year, may be fitted to a discrete distribution. By compounding the discrete distribution with a bivariate continuous distribution of two extreme sea environments, a new kind of distribution-Bivariate Compound Extreme Value Distribution (BCEVD) is obtained in this note. This study proposes Poisson-Gum-bel Mixed Compound Distribution, one of the particular forms of BCEVD, and gives an | Defu Liu Shuqin Wen Liping Wang | 2002 | Chinese Science Bulletin2002，47，22： | 18 |
| 7 | 多变量水文联合分布方法及Copula函数的应用研究显示文摘简介了水文事件中的多变量联合分布计算方法,系统总结了Copula函数的原理、性质、水文计算中常用的函数类型、参数估计方法及拟合检验方法,探讨了Copula函数在水文方面的应用前景。 | 冉啟香 张翔 | 2010 | 水电能源科学2010，28，9： | 18 |
| 8 | Deformation and failure mechanism of slope in three dimensions显示文摘Understanding three-dimensional(3D)slope deformation and failure mechanism and corresponding stability analyses are crucially important issues in geotechnical engineering.In this paper,the mechanisms of progressive failure with thrust-type and pull-type landslides are described in detail.It is considered that the post-failure stress state and the pre-peak stress state may occur at different regions of a landslide body with deformation development,and a critical stress state element(or the soil slice block)exists between the post-failure stress state and the pre-peak stress state regions.In this regard,two sorts of failure modes are suggested for the thrust-type and three sorts for pull-type landslides,based on the characteristics of shear stress and strain(or tensile stress and strain).Accordingly,a new joint constitutive model(JCM)is proposed based on the current stability analytical theories,and it can be used to describe the mechanical behaviors of geo-materials with softening properties.Five methods,i.e.CSRM(comprehensive sliding resistance method),MTM(main thrust method),CDM(comprehensive displacement method),SDM(surplus displacement method),and MPM(main pull method),for slope stability calculation are proposed.The S-shaped curve of monitored displacement vs.time is presented for different points on the sliding surface during progressive failure process of landslide,and the relationship between the displacement of different points on the sliding surface and height of landslide body is regarded as the parabolic curve.The comparisons between the predicted and observed load e displacement and displacement e time relations of the points on the sliding surface are conducted.The classi fi cation of stable/unstable displacement e time curves is proposed.The de fi nition of the main sliding direction of a landslide is also suggested in such a way that the failure body of landslide(simpli fi ed as'collapse body')is only involved in the main sliding direction,and the strike and the dip are the same as the collapse body.The rake angle is taken as the direction of the sum of sliding forces or the sum of displacements in collapse body,in which the main slip direction is dependent on progressive deformation.The reason of non-convergence with fi nite element method(FEM)in calculating the stability of slope is also numerically analyzed,in which a new method considering the slip surface associated with the boundary condition is proposed.It is known that the boundary condition of sliding surface can be described by perfect elasto-plastic model(PEPM)and JCM,and that the stress and strain of a landslide can be described properly with the JCM. | Yingfa Lu | 2015 | Journal of Rock Mechanics and Geotechnical Engineering2015，7，2： | 17 |
| 9 | The mechanisms and treatments of muscular pathological changes in immobilization-induced joint contracture: A literature review显示文摘The clinical treatment of joint contracture due to immobilization remains difficult.The pathological changes of muscle tissue caused by immobilization-induced joint contracture include disuse skeletal muscle atrophy and skeletal muscle tissue fibrosis.The proteolytic pathways involved in disuse muscle atrophy include the ubiquitin-proteasome-dependent pathway,caspase system pathway,matrix metalloproteinase pathway,Ca2+-dependent pathway and autophagy-lysosomal pathway.The important biological processes involved in skeletal muscle fibrosis include intermuscular connective tissue thickening caused by transforming growth factor-β1 and an anaerobic environment within the skeletal muscle leading to the induction of hypoxia-inducible factor-1α.This article reviews the progress made in understanding the pathological processes involved in immobilization-induced muscle contracture and the currently available treatments.Understanding the mechanisms involved in immobilization-induced contracture of muscle tissue should facilitate the development of more effective treatment measures for the different mechanisms in the future. | Feng Wang Quan-Bing Zhang Yun Zhou Shuang Chen Peng-Peng Huang Yi Liu Yuan-Hong Xu | 2019 | Chinese Journal of Traumatology2019，22，2： | 15 |
| 10 | GPS-RTK与全站仪联合作业在数字测图中的应用显示文摘随着国民经济建设的不断发展,相关用图单位对测图的要求也在不断提高,传统的平板测图已经很难满足工程需要,正在逐步被数字测图所替代。目前,GPS和全站仪等测绘仪器的价格大幅度下降,已经逐渐成为各个测绘单位进行数字测图的主流仪器。但是,GPS-RTK和全站仪各有其适用条件,对于复杂的测区环境(如测区上空有遮挡或是地形起伏较大、地物繁多等),如果单独使用一种仪器进行作业,就可能会影响工程的进度甚至无法完成项目。为此,本文提出了应用GPS-RTK与全站仪联合作业的方法,即在进行地形测量时,空旷地区的地形、地物用RTK测之;村庄、城市内的建筑物、构筑物用RTK实时给出图根点的3维坐标,然后用全站仪测之。实践证明该方法是切实可行的。 | 李清华 姜赟 | 2010 | 测绘与空间地理信息2010，33，6： | 14 |
| 11 | Recent advances in joining of SiC-based materials(monolithic SiC and SiC_f/SiC composites):Joining processes,joint strength, and interfacial behavior显示文摘Silicon carbide(SiC) has been widely concerned for its excellent overall mechanical and physical properties, such as low density, good thermal-shock behavior, high temperature oxidation resistance, and radiation resistance; as a result, the SiC-based materials have been or are being widely used in most advanced fields involving aerospace, aviation, military, and nuclear power. Joining of SiC-based materials(monolithic SiC and SiCf/SiC composites) can resolve the problems on poor processing performance and difficulty of fabrication of large-sized and complex-shaped components to a certain extent, which are originated from their high inherent brittleness and low impact toughness.Starting from the introduction to SiC-based materials, joining of ceramics, and joint strength characterization, the joining of SiC-based materials is reviewed by classifying the as-received interlayer materials, involving no interlayer, metallic, glass-ceramic, and organic interlayers. In particular, joining processes(involving joining techniques and parameter conditions), joint strength,interfacial microstructures, and/or reaction products are highlighted for understanding interfacial behavior and for supporting development of application-oriented joining techniques. | Guiwu LIU Xiangzhao ZHANG Jian YANG Gunjun QIAO | 2019 | Journal of Advanced Ceramics2019，8，1： | 14 |
| 12 | Experimental study and stress analysis of rock bolt anchorage performance显示文摘A new method was developed to apply pull-and-shear loads to the bolt specimen in order to evaluate the anchorage performance of the rebar bolt and the D-Bolt.In the tests,five displacing angles(0,20,40,60,and 90),two joint gaps(0 mm and 30 mm),and three kinds of host rock materials(weak concrete,strong concrete,and concrete-granite) were considered,and stressestrain measurements were conducted.Results show that the ultimate loads of both the D-Bolt and the rebar bolt remained constant with any displacing angles.The ultimate displacement of the D-Bolt changed from 140 mm at the0 displacing angle(pure pull) to approximately 70 mm at a displacing angle greater than 40.The displacement capacity of the D-Bolt is approximately 3.5 times that of the rebar bolt under pure pull and50% higher than that of the rebar bolt under pure shear.The compressive stress exists at 50 mm from the bolt head,and the maximum bending moment value rises with the increasing displacing angle.The rebar bolt mobilises greater applied load than the D-Bolt when subjected to the maximum bending.The yielding length(at 0) of the D-Bolt is longer than that of the rebar bolt.The displacement capacity of the bolts increased with the joint gap.The bolt subjected to joint gap effect yields more quickly with greater bending moment and smaller applied load.The displacement capacities of the D-Bolt and the rebar bolt are greater in the weak host rock than that in the hard host rock.In pure shear condition,the ultimate load of the bolts slightly decreases in the hard rock.The yielding speed in the hard rock is higher than that in the weak rock. | Yu Chen | 2014 | Journal of Rock Mechanics and Geotechnical Engineering2014，6，5： | 13 |
| 13 | New Method for Predicting the Motion Responses of A Flexible Joint Multi-Body Floating System to Irregular Waves显示文摘A new hybrid method of frequency domain and time domain is developed in this paper to predict the motion responses of a flexibly joint multi- body floating system to irregular waves. The main idea of the method is that the three-dimensional frequency method is used to obtain the hydrodynamic coefficients and the response equations are solved in time domain step by step. All the forces can be obtained at the same time. The motions and nonlinear mooring forces of a box type six-body floating system are predicted. A comparison of the theoretical method-based solutions with experimental results has shown good agreement. | 陈徐均 崔维成 沈庆 孙芦忠 | 2001 | China Ocean Engineering2001，16，4： | 13 |
| 14 | Low Complexity Joint Hybrid Precoding for Millimeter Wave MIMO Systems显示文摘In millimeter wave(mmWave) multiple-input multiple-output(MIMO) systems, hybrid precoding has been widely used to overcome the severe propagation loss. In order to improve the spectrum efficiency with low complexity, we propose a joint hybrid precoding algorithm for single-user mmWave MIMO systems in this paper. By using the concept of equivalent channel, the proposed algorithm skillfully utilizes the idea of alternating optimization to complete the design of RF precoder and combiner. Then, the baseband precoder and combiner are computed by calculating the singular value decomposition of the equivalent channel. Simulation results demonstrate that the proposed algorithm can achieve satisfactory performance with quite low complexity. Moreover, we investigate the effects of quantization on the analog components and find that the proposed scheme is effective even with coarse quantization. | Mingyang Cui Weixia Zou | 2019 | China Communications2019，16，2： | 13 |
| 15 | Treatment of acute periprosthetic infections with prosthesis retention: Review of current concepts显示文摘Periprosthetic joint infection(PJI) is a devastating complication after total joint arthroplasty, occurring in approximately 1%-2% of all cases. With growing populations and increasing age, PJI will have a growing effect on health care costs. Many risk factors have been identified that increase the risk of developing PJI, including obesity, immune system deficiencies, malignancy, previous surgery of the same joint and longer operating time. Acute PJI occurs either postoperatively(4 wk to 3 mo after initial arthroplasty, depending on the classification system), or via hematogenous spreading after a period in which the prosthesis had functioned properly. Diagnosis and the choice of treatment are the cornerstones to success. Although different definitions for PJI have been used in the past, most are more or less similar and include the presence of a sinus tract, blood infection values, synovial white blood cell count, signs of infection on histopathological analysis and one ormore positive culture results. Debridement, antibiotics and implant retention(DAIR) is the primary treatment for acute PJI, and should be performed as soon as possible after the development of symptoms. Success rates differ, but most studies report success rates of around 60%-80%. Whether single or multiple debridement procedures are more successful remains unclear. The use of local antibiotics in addition to the administration of systemic antibiotic agents is also subject to debate, and its pro's and con's should be carefully considered. Systemic treatment, based on culture results, is of importance for all PJI treatments. Additionally, rifampin should be given in Staphylococcal PJIs, unless all foreign material is removed. The most important factors contributing to treatment failure are longer duration of symptoms, a longer time after initial arthroplasty, the need for more debridement procedures, the retention of exchangeable components, and PJI caused by Staphylococcus(aureus or coagulase negative). If DAIR treatment is unsuccessful, the following treatment option should be based on the patient health status and his or her expectations. For the best functional outcome, one- or two-stage revision should be performed after DAIR failure. In conclusion, DAIR is the obvious choice for treatment of acute PJI, with good success rates in selected patients. | Jesse WP Kuiper Robin Tjeenk Willink Dirk Jan F Moojen Michel PJ van den Bekerom Sascha Colen | 2014 | World Journal of Orthopedics2014，5，5： | 12 |
| 16 | Resolving rupture processes of great earthquakes: Reviews and perspective from fast response to joint inversion显示文摘Resolving rupture processes of great earthquakes has fundamental importance to the study of earthquake physics,rupture dynamics, fault zone structure, and evolving processes. It also plays an essential role in earthquake hazard estimation,emergency response and seismic hazard mitigation. This paper reviews the major progress of the earthquake rupture process studies in the last decades, with an emphasize on the research directions of the department geophysics of Peking University including real-time response, back-projection techniques, geodetic data analysis, joint inversion and inversion in complex earth medium. We discussed the advantages and limitations of tradition methods;proposed a systematic and integrated approach from fast-response to detailed study. We also raised perspectives of using source models for ground motion prediction and the possibility of full-dynamic inversion. | Han YUE Yong ZHANG Zengxi GE Teng WANG Li ZHAO | 2020 | Science China Earth Sciences2020，63，4： | 11 |
| 17 | Management of chronic disruption of the distal tibiofibular syndesmosis显示文摘Disruption of the distal tibiofibular syndesmosis is frequently accompanied by rotational ankle fracture such as pronation-external rotation and rarely occurs without ankle fracture.In such injury,not only inadequately treated or misdiagnosed cases,but also correctly diagnosed cases can possibly result in a chronic pattern which is more troublesome to treat than an acute pattern.This paper reviews anatomical and biomechanical characteristics of the distal tibiofibular joint,the mechanism of chronic disruption of the distal tibiofibular syndesmosis,radiological and arthroscopic diagnosis,and surgical treatment. | Wataru Miyamoto Masato Takao | 2011 | World Journal of Orthopedics2011，2，1： | 11 |
| 18 | 刚性法兰连接节点有限元分析显示文摘主要研究了钢管结构中刚性法兰连接轴心力作用的受力性能,应用大型有限元软件ANSYS进行了有限元分析,揭示了刚性法兰盘在受轴力状态下的受力特点。 | 曾程 | 2008 | 电网与水力发电进展2008，24，2： | 10 |
| 19 | Typhoon disaster zoning and prevention criteria——A double layer nested multi-objective probability model and its application显示文摘For prevention and mitigation of typhoon disasters in China, in this paper a double layer nested multi-objective probability model of typhoon disaster zoning and prevention criteria is proposed. The multivariate compound extreme value distribution (MCEVD) is used to predict the joint probability of seven typhoon characteristics and corresponding typhoon induced disasters. Predicted results can be used for both typhoon disaster zoning and corresponding prevention criteria along China coast. | LIU DeFu PANG Liang XIE BoTao WU YuanKang | 2008 | Science China(Technological Sciences)2008，51，7： | 10 |
| 20 | Recurrent anterior shoulder instability: Review of the literature and current concepts显示文摘The purpose of this review article is to discuss the clinical spectrum of recurrent traumatic anterior shoulder instability with the current concepts and controversies at the scientific level. Because of increasing participation of people from any age group of the population in sports activities, health care professionals dealing with the care of trauma patients must have a thorough understanding of the anatomy, patho-physiology, risk factors, and management of anterior shoulder instability. The risk factors for recurrent shoulder dislocation are young age, participation in high demand contact sports activities, presence of Hill-Sachs or osseous Bankart lesion, previous history of ipsilateral traumatic dislocation, ipsilateral rotator cuff or deltoid muscle insufficiency, and underlying ligamentous laxity. Achieving the best result for any particular patient depends onthe procedure that allows observation of the joint surfaces, provides the anatomical repair, maintains range of motion, and also can be applied with low rates of complications and recurrence. Although various surgical techniques have been described, a consensus does not exist and thus, orthopedic surgeons should follow and try to improve the current evidence-based treatment modalities for the patients. | Hakan Sofu Sarper Gürsu Nizamettin Ko?kara Ali ?ner Ahmet Issιn Yalkιn ?amurcu | 2014 | World Journal of Clinical Cases2014，2，11： | 10 |
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