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Clinicopathological differences between patients with schistosomal appendicitis and non schistosomal appendicitis:A retrospectively study of past ten years

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World Journal of Clinical Cases 2025年第2期13卷 24-32页

作者： Xiao-Yi wang Yao Hao zi-jian wang Xiu-Liang Xu jiang-Hua Yang Department of Infectious Diseases The First Affiliated of Wannan Medical CollegeWuhu 241001Anhui ProvinceChina

BACKGROUND Chronic schistosomiasis causes multiple organ and multiple system diseases,especially the digestive *** eggs are mainly deposited in the stomach,liver and colorectal,but a few eggs are deposited in the appendix and cause *** present,there are few studies on schistosomal *** To explore the differences in epidemiological,clinical and pathological characteristics between schistosomal appendicitis and non-schistosomal appendicitis over the past decade in order to assess the impact of schistosomiasis on *** The differences of general data,clinical data and laboratory examination data of patients with appendicitis from October 2013 to October 2023 were retrospectively *** patients were divided into two groups for *** were 136 patients in schistosomal appendicitis group and 5418 patients in non-schistosomal appendicitis *** Schistosomal appendicitis accounted for 2.45%of all patients with appendicitis,and the annual proportion in the past decade was 2.2%,2.9%,1.8%,1.9%,3.4%,3.1%,1.9%,1.6%,3%,2.6%,*** prevalence of schistosomal appendicitis was middle-aged and elderly males,with an average age of 61.73±15.335 *** main population of non-schistosomal appendicitis was middle-aged men,with an average age of 35.8±24.013 years(P<0.001).The distribution of pathological types of appendicitis was different between the two groups(P<0.001).The incidence of acute suppurative appendicitis in non-schistosomal appendicitis was higher than that in schistosomal appendicitis[odds ratio(OR)=0.504;95%confidence interval(CI):0.349-0.728;P<0.001].The proportion of acute attack of chronic appendicitis in schistosomal appendicitis was higher than that in non-schistosomal appendicitis(OR=2.614;95%CI:1.815-3.763;P<0.001).The proportion of schistosomal appendicitis patients complicated with colorectal cancer was higher than that of nonschistosomal appendicitis patients(OR=5.087;95%CI:1.427-

关键词： Schistosomal appendicitis Schistosomiasis Appendix Colorectal cancer Clinicopathological characteristics

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Fluidization characteristics of different sizes of quartz particles in the fluidized bed

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Petroleum Science 2016年第3期13卷 584-591页

作者： zi-jian wang Jun Tang Chun-Xi Lu State Key Laboratory of Heavy Oil Processing China University of Petroleum(Beijing)

Fluidization characteristics of quartz particles with different sizes are experimentally investigated in a fluidized bed with an inner diameter of 300 mm and height of 8250 *** show that the average solid holdup increases with the increase in superficial gas velocity and the decrease in initial solid holdup in the dense zone of the fluidized *** average cross-sectional solid holdup decreases with increasing bed height and superficial gas *** bed expansion coefficient increases with the increase in superficial gas velocity and the decrease in solid *** of average solid holdup,average cross-sectional solid holdup and bed expansion coefficient are also established and *** correlations can provide guidelines for better understanding of the fluidization characteristics.

关键词： Fluidization characteristic Solid holdup Axial average section solid holdup Bed expansion coefficient

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Numerical stress-deformation analysis of cut-off wall in clay-core rockfill dam on thick overburden

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Water Science and Engineering 2016年第3期9卷 219-226页

作者： Si-hong Liu Liu-jiang wang zi-jian wang Erich Bauer College of Water Conservancy and Hydropower Engineering Hohai UniversityNanjing 210098China Zhejiang Design Institute of Conservancy and Hydroelectric Power Hangzhou 310002China Institute of Applied Mechanics Graz University of TechnologyGraz 8010Austria

The cut-off wall in a clay-core rockfill dam built on a thick overburden layer is subjected to a large compressive pressure under the action of the loads such as the dead weight of both the dam and the overburden layer, the frictional force induced by the differential settlement between the cut-off wall and surrounding soils, and the water pressure. Thus, reduction of the stress of the cut-off wall has become one of the main problems for consideration in engineering design. In this paper, numerical analysis of a core rockfill dam built on a thick overburden layer was conducted and some factors influencing the stress-strain behaviors of the cut-off wall were investigated. The factors include the improvement of the overburden layer, the modeling approach for interfacial contact between the cut-off wall and surrounding soils, the modulus of the cut-off wall concrete, and the connected pattern between the cut-off wall and the clay core. The result shows that improving the overburden layer,selecting plastic concrete with a low modulus and high strength, and optimizing the connection between the cut-off wall and the clay core of the dam are effective measures of reducing the deformations and compressive stresses of the cut-off wall. In addition, both the Goodman element and the mud-layer element are suitable for simulating the interfacial contact between the cut-off wall and surrounding soils.

关键词： Overburden layer Core rockfill dam Cut-off wall Numerical analysis Stress and deformation analysis

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The influence of ultrasonic vibration on parts properties during incremental sheet forming

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Advances in Manufacturing 2021年第2期9卷 250-261页

作者： Yan-Le Li zi-jian wang Wei-Dong Zhai zi-Nan Cheng Fang-Yi Li Xiao-Qiang Li Key Laboratory of High Efficiency and Clean Mechanical Manufacture Ministry of EducationSchool of Mechanical EngineeringShandong UniversityJinan 250061People’s Republic of China National Demonstration Center for Experimental Mechanical Engineering Education Shandong UniversityJinan 250061People’s Republic of China School of Mechanical Engineering and Automation Beihang UniversityBeijing 100083People’s Republic of China

The integration of ultrasonic vibration into sheet forming process can significantly reduce the forming force and bring benefits including the enhancement of surface quality,the enhancement of formability and the reduction of ***,the influencing mechanisms of the high-frequency vibration on parts properties during the incremental sheet forming(ISF)process are not well known,preventing a more efficient forming *** paper comprehensively investigates the effects of different process parameters(vibration amplitude,step-down size,rotation speed and forming angle)on the micro-hardness,minimum thickness,forming limit and residual stress of the formed ***,a series of truncated pyramids were formed with an experimental platform designed for the ultrasonic-assisted incremental sheet ***,microhardness tests,minimum thickness measurements and residual stress tests were performed for the formed *** results showed that the surface micro-hardness of the formed part was reduced since the vibration stress induced by the ultrasonic vibration within the material which eliminated the original internal *** superimposed University,Beijing 100083,People’s Republic of China ultrasonic vibration can effectively uniform the residual stress and thickness distribution,arid improve the forming limit in the case of the small deformation *** addition,through the tensile fracture analysis of the formed part,it is shown that the elongation of material is improved and the elastic modulus and hardening index are *** findings of the present work lay the foundation for a better integration of the ultrasonic vibration system into the incremental sheet forming process.

关键词： Incremental sheet forming(ISF) Ultrasonic vibration Residual stress Forming limit

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Energy dissipation of atomic-scale friction based on one- dimensional Prandtl-Tomlinson model

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Friction 2015年第2期3卷 170-182页

作者： zi-jian wang Tian-Bao MA Yuan-Zhong HU Liang XU Hui wang State Key Laboratory of Tribology Tsinghua UniversityBeijing 100084China Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 100083China

The energy transition and dissipation of atomic-scale friction are investigated using the one-dimensional Prandtl-Tomlinson model.A systematic study of the factors influencing the energy dissipation is conducted,indicating that the energy that accumulated during the stick stage does not always dissipate completely during stick-slip *** adopt the energy-dissipation ratio(EDR)to describe the relationship between the energy dissipated permanently in the system and the conservative reversible energy that can be reintroduced to the driving system after the slip *** EDR can change continuously from 100%to 0,covering the stick-slip,intermediate,and smooth-sliding regimes,depending on various factors such as the stiffness,potential-energy corrugation,damping coefficient,sliding velocity,and the temperature of the *** these,the parameterη,which depends on both the surface potential and the lateral stiffness,is proven in this paper to have the most significant impact on the *** toη-T phase diagrams of the EDR,the smooth-sliding superlubricity and thermolubricity are found to be unified with regard to the energy dissipation and *** analytical formulation for the EDR that can be used to quantitatively predict the amount of energy dissipation is derived from a lateral-force curve.

关键词： atomic-scale friction energy reversibility energy dissipation ratio superlubricity

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Metal–Organic Frameworks-Mediated Assembly of Gold Nanoclusters for Sensing Applications

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Journal of Analysis and Testing 2022年第2期6卷 163-177页

作者： zi-jian wang Qiang Li Li-Li Tan Chun-Guo Liu Li Shang Roll-Forging Research Institute College of Materials Science and EngineeringJilin UniversityChangchun 130025China State Key Laboratory of Solidifi cation Processing School of Materials Science and EngineeringChongqing Science and Technology Innovation CenterNorthwestern Polytechnical UniversityXi’an 710072China

Gold nanoclusters(AuNCs)are an emerging type of ultrasmall nanomaterials possessing unique physicochemical ***–organic frameworks(MOFs),a singular kind of porous solid and crystalline material,have attracted tremendous attention in recent *** combination of AuNCs and MOFs can integrate and improve the prominent properties of both components,such as high catalytic activities,tunable optical properties,good biocompatibility,surface functionality and stability,which make the composites of MOFs and AuNCs promising for sensing *** review systematically summarizes the recent progress on the sensing of various analytes via MOFs-mediated AuNCs assemblies based on strategies of luminescence sensing,colorimetric sensing,electrochemiluminescence sensing,and electrochemical and photoelectrochemical sensing.A brief outlook regarding the future development of MOFs-mediated AuNCs assemblies for sensing application is presented as well.

关键词： Gold nanoclusters Metal-organic frameworks Luminescence Sensing

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Long-term curative effects of combined hepatocholangioplasty with choledochostomy through an isolated jejunum passage on hepatolithiasis complicated by stricture

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Hepatobiliary & Pancreatic Diseases International 2005年第1期4卷 64-67页

作者： Yong Li Jun Cai An-Tao Wu zi-jian wang Department of General Surgery First Affiliated Hospital of Jiangxi Medical College Nanchang 330006 China. jiangyipuyai@***

BACKGROUND: Hepatocholangioplasty combined with choledochostomy was designed through an isolated jejunum passage in 1988. This study was undertaken to evaluate its long-term curative effects in 163 patients.METHODS: The 163 patients with hepatolithiasis complicated by stricture were treated with this procedure from 1988 to 2003.RESULTS: Among these patients, 19 patients with postoperative hepatolithiasis complicated by acute cholangitis were treated successfully with percutaneous paracentesis drainage through the isolated jejunum passage and without operation, 36 patients had postoperative residual or recurrent stones (35 patients had stones removed through the stoma and one underwent relaparotomy because of stenosis of the common bile duct along with stone in canceration). The clearance rate of stones after the isolated jejunum passage was 97%; 35 patients (21%) complicated with stricture due to hepatolith were treated with combined hepatocholangioplasty and choledochostomy. Follow-up for 1 to 15 years showed no recurrent stricture of the biliary tract. The operation also successfully prevented reflux cholangitis and other serious complications after Roux-en-Y cholangio-jejunostomy.CONCLUSION: Hepatocholangioplasty combined with choledochostomy through an isolated jejunum passage may significantly improve the long-term curative effects of hepatolithiasis with stricture.

关键词： cholelithiasis hepatocholangioplasty choledochostomy

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Effect of solution treatment time on plasticity and ductile fracture of 7075 aluminum alloy sheet in hot stamping process

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Transactions of Nonferrous Metals Society of China 2022年第11期32卷 3516-3533页

作者： Hui-cheng GENG Yi-lin wang Bin ZHU zi-jian wang Yi-sheng ZHANG State Key Lab of Materials Processing and Die and Mould Technology Huazhong University of Science and TechnologyWuhan 430074China School of Iron and Steel Soochow UniversitySuzhou 215006China

The effect of solution treatment time on the post-formed plasticity and ductile fracture of 7075 aluminum alloy in the hot stamping process was *** tests were conducted on the specimens subjected to the hot stamping process with different solution treatment *** digital image correlation(DIC)analysis was used to obtain the strain of the *** on the experiments and modeling,the Yld2000-3d yield criterion and the DF2014 ductile fracture criterion were calibrated and used to characterize the anisotropy and fracture behavior of the metal,***,the microstructure of specimens was *** experimental and simulation results indicate that the 7075 aluminum alloy retains distinct anisotropy after the hot stamping process,and there is no obvious effect of extending the solution treatment time on the material ***,it is found that a longer solution treatment time can increase the fracture strain of the aluminum alloy during the hot stamping process,which may be related to the decrease of the second-phase particles size.

关键词： 7075 aluminum alloy hot stamping solution treatment time anisotropy ductile fracture

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Three-dimensional numerical simulation and earth pressure analysis on doublerow piles with consideration of spatial effects

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2012年第8期 609-609页

作者： zi-han wang,jian ZHOU

As a new kind of technology in retaining structures,the characteristics of double-row piles are significantly affected by spatial *** this paper,double-row piles as a retaining structure are simulated numerically in three-dimension by finite element software PLAXIS 3D *** behavior differences of piles in different positions around the foundation pit are *** changing the parameters,including the length-width ratio,the excavation depth,the distance between rows and the diameter of piles,the variations of the lateral deformation,the bending moment and the earth pressure around the piles are *** reasonable values of parameters and some suggestions with consideration of earth pressure are proposed for the design of double-row piles as a retaining *** results show that the lateral deformation and bending moment are the largest in the middle of long side of the foundation pit,which is identified as the most unfavorable *** is indicated that the earth pressure between rows above pit bottom is close to active earth pressure,while the earth pressure between rows under pit bottom is close to static earth *** is suggested that 1/2-2/3 of pile length,0.6-1.2 m,3d-6d,and 2d-2.5d be chosen as embedded depth of piles,diameter of piles,distance between rows,and distance between piles,respectively,where d is the pile diameter.

关键词： Three-dimensional numerical simulation and earth pressure analysis on doublerow piles with consideration of spatial effects PLAXIS

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Exceptionally shear-stable and ultra-strong Ir-Ni-Ta high-temperature metallic glasses at micro/nano scales

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Science China Materials 2022年第2期65卷 501-507页

作者： Yu-Tian wang Quan-Feng He zi-jian wang Ming-Xing Li Yan-Hui Liu Yong Yang Bao-An Sun Wei-Hua wang Institute of Physics Chinese Academy of SciencesBeijing 100190China Songshan Lake Materials Laboratory Dongguan 523808China Department of Mechanical Engineering City University of Hong KongKowloon TongKowloonHong KongChina

Ir-Ni-Ta metallic glasses(MGs)exhibit an array of superior high-temperature properties,making them attractive for applications at high temperatures or in harsh ***,Ir-Ni-Ta bulk MGs are quite brittle and often fracture catastrophically even before plastic yielding,significantly undercutting their high-strength ***,we show that the Ir-Ni-Ta MGs are not intrinsically brittle,but rather malleable when the feature size is reduced to micro/*** tested Ir-Ni-Ta MG micropillars with a diameter ranging from~500 nm to~5μm display a large plastic strain above 25%(the maximum up to 35%),together with a yield strength up to 7 GPa,well exceeding the strength recorded in most metallic *** intrinsic shear stability of Ir-Ni-Ta MGs,as characterized by the normalized shear displacement during a shear event,is much larger than those malleable Zr-and Cu-based *** results suggest that Ir-Ni-Ta MGs are excellent candidates for micro/nanoscale structural applications used at high-temperature or extreme conditions.

关键词： micro-compressions micropillars intrinsic shear stability metallic glasses

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