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Is appendoscope a new option for the treatment of acute appendicitis?

World Journal of Gastroenterology 2024年第28期30卷 3386-3392页

作者： Shu-Jiong feng Yi-feng Zhou Jian-feng Yang Hong-zhang Shen Guang-Xing Cui xiao-feng zhang Department of Gastroenterology Affiliated Hangzhou First People’s HospitalSchool of MedicineWestlake UniversityHangzhou 310000Zhejiang ProvinceChina Department of Gastroenterology Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang ProvinceHangzhou 310000Zhejiang ProvinceChina Department of Gastroenterology Hangzhou Institute of Digestive DiseasesHangzhou 310000Zhejiang ProvinceChina

Acute appendicitis is a common surgical *** is commonly caused by obstruction of the appendiceal lumen due to fecaliths,tumors,or lymphoid *** over a century,appendectomy has been the primary treatment for acute *** Groves performed the first open appendectomy in *** 1983,Kurt Semm completed the first laparoscopic appendectomy,heralding a new era in ***,appendectomy is associated with certain complications and a rate of negative *** have suggested controversy over the impact of appendectomy on the development of inflammatory bowel disease and Parkinson’s disease,but an increasing number of studies indicate a possible positive correlation between appendectomy and colorectal cancer,gallstones,and cardiovascular *** the recognition that the appendix is not a vestigial organ and the advancement of endoscopic technology,Liu proposed the endoscopic retrograde appendicitis *** is an effective minimally invasive alternative for treating uncomplicated acute *** team has developed an appendoscope with a disposable digital imaging system operated through the biopsy channel of a colonoscope and successfully applied it in the treatment of *** article provides an overview of the progress in endoscopic treatment for acute appendicitis and offers a new perspective on the future direction of appendiceal disease treatment.

关键词： Acute appendicitis Endoscopic technology Endoscopic retrograde appendicitis therapy Appendoscope Appendiceal disease treatment

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Development and validation of a predictive model for acute-onchronic liver failure after transjugular intrahepatic portosystemic shunt

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World Journal of Gastrointestinal Surgery 2024年第5期16卷 1301-1310页

作者： Wei zhang Ya-Ni Jin Chang Sun xiao-feng zhang Rui-Qi Li Qin Yin Jin-Jun Chen Yu-Zheng Zhuge Department of Gastroenterology Nanjing Drum Tower HospitalThe Affiliated Hospital of Medical SchoolNanjing UniversityNanjing 210000Jiangsu ProvinceChina Hepatology Unit Department of Infectious DiseasesNanfang HospitalSouthern Medical UniversityGuangzhou 510000Guangdong ProvinceChina Co-first authors:Wei Zhang and Ya-Ni Jin

BACKGROUND Transjugular intrahepatic portosystemic shunt(TIPS)is a cause of acute-onchronic liver failure(ACLF).AIM To investigate the risk factors of ACLF within 1 year after TIPS in patients with cirrhosis and construct a prediction *** In total,379 patients with decompensated cirrhosis treated with TIPS at Nanjing Drum Tower Hospital from 2017 to 2020 were selected as the training cohort,and 123 patients from Nanfang Hospital were included in the external validation *** and multivariate logistic regression analyses were performed to identify independent *** prediction model was established based on the Akaike information *** and external validation were conducted to assess the performance of the *** Age and total bilirubin(TBil)were independent risk factors for the incidence of ACLF within 1 year after *** developed a prediction model comprising age,TBil,and serum sodium,which demonstrated good discrimination and calibration in both the training cohort and the external validation *** Age and TBil are independent risk factors for the incidence of ACLF within 1 year after TIPS in patients with decompensated *** model showed satisfying predictive value.

关键词： Acute-on-chronic liver failure Transjugular intrahepatic portosystemic shunt Influencing factor analysis Risk prediction model Nomogram

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Therapeutic effect of San Bi Tang combined with glucosamine sulfate capsules in cold-dampness-type knee osteoarthritis

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World Journal of Clinical Cases 2024年第19期12卷 3854-3865页

作者： Hui-Ying Ni Yao-Ping zhang xiao-feng zhang Department of Orthopedics and Traumatology Hangzhou Fuyang Hospital of TCM Orthopedics and TraumatologyHangzhou 311400Zhejiang ProvinceChina

BACKGROUND Cold-dampness-type knee osteoarthritis is a common middle-aged and elderly disease,but its pathogenesis is not fully understood,and its clinical treatment has *** sulfate capsules are commonly used for treating arthritis,and San Bi Tang is a classic formula of traditional Chinese medicine(TCM)that has the effects of warming yang,dispelling dampness,relaxing muscles,and activating *** research hypothesized that the combination of modified San Bi Tang and glucosamine sulfate capsules could enhance the clinical efficacy of treating cold-dampness-type knee osteoarthritis through complementary *** To analyze the clinical efficacy of San Bi Tang combined with glucosamine sulfate capsules when treating cold-dampness-type knee *** A total of 110 patients with cold-dampness-type knee osteoarthritis were selected as research subjects and randomly divided into a control group and an experimental group of 55 cases *** control group received only treatment with glucosamine sulfate capsules,while the experimental group received additional treatment with modified San Bi Tang for a duration of 5 *** patients’knee joint functions,liver and kidney function indicators,adverse reactions,and vital signs were evaluated and analyzed using SPSS 26.0 *** Before treatment,the two groups’genders,ages,and scores were not significantly different,indicating *** groups’scores improved after treatment,which could indicate pain and knee joint function improvement,but the test group had better *** TCM-specific symptoms and the clinical efficacy of the treatment in the test group were *** and after treatment,there were no abnormalities in the patients’liver and kidney function *** The combination of modified San Bi Tang and glucosamine sulfate capsules is superior to treatment with sulfated glucosamine alone and has high safety.

关键词： San Bi Tang Combination therapy Knee osteoarthritis Aggravated by cold Glucosamine sulfate capsules

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Al_(2)O_(3)改性等离子喷涂-物理气相沉积热障涂层的异物损伤行为及失效机理

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Transactions of Nonferrous Metals Society of China 2024年第7期34卷 2289-2303页

作者：王梓帆范佳锋康楷雯吴健刘敏周克崧张乾张志波李小强张小锋西安理工大学应用化学系西安710048 广东省科学院新材料研究所现代材料表面工程技术国家工程实验室广东省现代表面工程技术重点实验室广州510650 华南理工大学国家金属材料近净成形工程技术研究中心广东省先进金属材料制造与成型重点实验室广州510640

由外来异物损伤引起的颗粒冲蚀是制约热障涂层使用寿命的重要因素。为了提高等离子喷涂-物理气相沉积(PS-PVD)热障涂层的耐冲蚀性能,采用磁控溅射和真空热处理在PS-PVD喷涂的7YSZ热障涂层表面制备一层致密的α-Al_(2)O_(3)。系统研究热... 详细信息

由外来异物损伤引起的颗粒冲蚀是制约热障涂层使用寿命的重要因素。为了提高等离子喷涂-物理气相沉积(PS-PVD)热障涂层的耐冲蚀性能,采用磁控溅射和真空热处理在PS-PVD喷涂的7YSZ热障涂层表面制备一层致密的α-Al_(2)O_(3)。系统研究热障涂层的异物损伤行为,并采用第一性原理计算对α-Al_(2)O_(3)/c-ZrO_(2)界面进行研究。结果表明,PS-PVD、大气等离子喷涂(APS)和电子束-物理气相沉积(EB-PVD)热障涂层的冲蚀质量损失率分别为324、248和139μg/g,而Al_(2)O_(3)改性的PS-PVD热障涂层的冲蚀质量损失率降至199μg/g。此外,在Al_(2)O_(3)/ZrO_(2)-O的顶部构型模型中观察到的界面结合能最高(3.88 J/m^(2)),远高于ZrO_(2)/Ni(2.011 J/m^(2)),使界面结合性能得以提高。

关键词：热障涂层等离子喷涂-物理气相沉积 Al_(2)O_(3)改性外来异物损伤第一性原理

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PTCD引导下体外震波碎石联合ERCP治疗改道术后困难胆管结石2例

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世界华人消化杂志 2024年第2期32卷 166-170页

作者：方梦蝶王月陈佳琦张筱凤浙江中医药大学第四临床医学院浙江省杭州市310053 浙江大学浙江省杭州市310058 杭州市第一人医院消化内科浙江省杭州市310003

背景经内镜逆行胰胆管造影术(endoscopic retrograde cholan-gio pancreatography,ERCP)是目前治疗胆管结石的常规手段,但对于改道术后的患者,由于乳头位置改变、胆管插管困难等原因,ERCP成功率有所下降,需探索更为合适的治疗方案.病例... 详细信息

背景经内镜逆行胰胆管造影术(endoscopic retrograde cholan-gio pancreatography,ERCP)是目前治疗胆管结石的常规手段,但对于改道术后的患者,由于乳头位置改变、胆管插管困难等原因,ERCP成功率有所下降,需探索更为合适的治疗方案.病例简介本文报道2例改道术后的困难胆管结石,在经经皮肝穿刺胆道引流术(percutaneous transhepatic cholangio-graphy drainage,PTCD)引导下进行体外震波碎石(ex-tracorporeal shock wave lithotripsy,ESWL)联合ERCP治疗,取得良好的治疗效果.结论对于一些高龄、基础条件差的困难胆管结石患者,常规ERCP失败后可尝试使用PTCD解除梗阻、充分引流,待一般情况好转后,择期ESWL联合ERCP取石,可取得不错的治疗效果.

关键词：改道术后困难胆管结石经皮肝穿刺胆道引流术体外震波碎石经内镜逆行胰胆管造影术

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Effects of rigid gas permeable contact lens on morphological parameters and vision-related quality of life in keratoconus patients

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International Journal of Ophthalmology(English edition) 2022年第11期15卷 1772-1781页

作者： Yue Xu Yun Wang xiao-feng zhang Department of Ophthalmology Dushu Lake Hospital Affiliated to Soochow UniversitySuzhou 215000Jiangsu ProvinceChina

AIM: To evaluate the effect of rigid gas permeable contact lens(RGP-CL) on corneal morphological parameters and vision-related quality of life in keratoconus(KC) ***: Totally 57 eyes of 30 KC patients who were followed-up for more than two years, including 17 RGP wearers(32 eyes) and 13 non-wearers(25 eyes) were retrospectively analyzed. Initial medical history and corneal topography were collected at baseline. Corneal topography, corneal aberration, optical coherence tomography, and vision-related quality of life questionnaires were performed at the last ***: According to corneal topography, increase of the flattest keratometric values was higher in RGP wearers than in non-wearers(P=0.038). The morphological parameters, including symmetry index of front corneal curvature(P=0.004) and Baiocchi-Calossi-Versaci index front(P=0.047), were lower in RGP wearers than in nonwearers. Vertical coma was smaller in RGP wearers than non-wearers in 3.0, 5.0, 6.0, and 7.0 mm pupil diameters, respectively(P0.05).CONCLUSION: Long-term use of RGP does not worsen KC but may cause corneal epithelial remodeling to increase symmetry of corneal anterior surface, reduce corneal vertical coma and improve visual quality. However, RGP wearing causes a slight decrease in vision-related quality of life. The occurrence of ocular surface symptoms is mainly associated with environmental triggering factors.

关键词： keratoconus rigid gas permeable contact lens morphological parameters corneal aberration visionrelated quality of life

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Pressure infiltration of molten aluminum for densification of environmental barrier coatings

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Journal of Advanced Ceramics 2022年第1期11卷 145-157页

作者： Lin DONG Mei-Jun LIU xiao-feng zhang Xue-Shi ZHUO Jia-feng FAN Guan-Jun YANG Ke-Song ZHOU State Key Laboratory for Mechanical Behavior ofMaterials School ofMaterials Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China National Engineering Laboratory for Modern Materials Surface Engineering Technology Institute of New MaterialsGuangdong Academy of ScienceGuangzhou 510650China

Environmental barrier coatings(EBCs)effectively protect the ceramic matrix composites(CMCs)from harsh engine environments,especially steam and molten ***,open pores inevitably formed during the deposition process provide the transport channels for oxidants and corrosives,and lead to premature failure of *** research work proposed a method of pressure infiltration densification which blocked these open pores in the *** results showed that it was difficult for aluminum to infiltrate spontaneously,but with the increase of external gas pressure and internal vacuum simultaneously,the molten aluminum obviously moved forward,and finally stopped infiltrating at a depth of a specific *** on the wrinkled zigzag pore model,a mathematical relationship between the critical pressure with the infiltration depth and the pore intrinsic geometry was *** infiltration results confirmed this relationship,indicating that for a given coating,a dense thick film can be obtained by adjusting the internal and external gas pressures to drive a melt infiltration.

关键词： infiltration process channel pore densification pressure assistant environmental barrier coating(EBC)

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Thermal insulation performance of 7YSZ TBCs adjusted via Al modification

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Rare Metals 2023年第3期42卷 994-1004页

作者： Jun-Gui zhang Xi Tan Xiu-Juan Fan Jie Mao Chun-Ming Deng Min Liu Ke-Song Zhou xiao-feng zhang Institute of New Materials The Key Lab of Guangdong for Modern SurfaceEngineering TechnologyGuangdong Academy of SciencesNational Engineering Laboratory of Modern Materials Surface Engineering TechnologyGuangzhou 510651China

ZrO_(2)-7 wt% Y_(2)O_(3)(7YSZ)thermal barrier coatings(TBCs)with three different structures were prepared by atmospheric plasma spraying(APS),electron beam physical vapor deposition(EB-PVD)and plasma spray-physical vapor deposition(PS-PVD).Al films were deposited onto the top 7YSZ TBCs by magnetron sputtering,and the Al-deposited 7YSZ TBCs were subjected to vacuum heat *** effects of Al modification on the thermal insulation properties of 7YSZ TBCs were *** results showed that Al modification could significantly improve the thermal insulation of 7YSZ TBCs at 1000℃.Moreover,the maximum improvement of thermal insulation for PS-PVD 7YSZ TBCs was approximately 100℃,but the improvement decreased with increasing *** is mainly because with increasing temperature,the rate of radiation heat transfer increases,and the effects of convection heat transfer and thermal conductivity on thermal insulation are *** the same temperature,Al modification of PS-PVD7YSZ TBCs provides better temperature insulation than those of APS 7YSZ TBCs and EB-PVD 7YSZ TBCs because of its wider and deeper inter-columnar *** the temperature was 12000C,Al modification still caused a good insulation effect in PS-PVD 7YSZ TBCs;the improvement was approximately 50℃,but in APS and EB-PVD 7YSZ TBCs,the insulation effect disappeared.

关键词： Al modification Thermal barrier coatings(TBCs) Thermal insulation Inter-columnar gap

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Effect of oxide inclusions on MnS precipitates and tensile mechanical property of high-strength low-alloy steel

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Journal of Iron and Steel Research(International) 2024年第5期31卷 1210-1220页

作者： xiao-yong Gao Hong Wei Li-feng zhang School of Mechanical Engineering Yanshan UniversityQinhuangdao066004HebeiChina School of Materials Science and Engineering Yanshan UniversityQinhuangdao066004HebeiChina School of Mechanical and Materials Engineering North China University of TechnologyBeijing100144China

The key role of oxide inclusions on the microstructure and mechanical property of a high-strength low-alloy steel was *** field emission scanning electron microscope equipped with energy-dispersive spectrometry was used to characterize MnS *** inclusions play an important role in the shape control of MnS *** oxides fovored to decrease the size and the aspect ratio of MnS *** less oxide inclusions in the steel,approximately over 16.7%MnS precipitates were with aspect ratio a>5 and pure MnS precipitates accounted for 75.9%in ***,with more oxide inclusions in the steel,only 7.4%MnS precipitates were with a>5 and pure MnS precipitates accounted for 60.1%in *** of MnS by oxide inclusions improved the strength and inhibited the *** oxide inclusions in the steel increased the yield strength and tensile strength of the steel in both longitudinal and transverse directions,and lowered the anisotropy of the mechanical property.

关键词： High-strength low-alloy steel MnS Oxide inclusion Mechanical property Anisotropy

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Multi-scale hash encoding based neural geometry representation

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Computational Visual Media 2024年第3期10卷 453-470页

作者： Zhi Deng Haoyao xiao Yining Lang Hao feng Juyong zhang School of Mathematical Sciences University of Science and Technology of ChinaHefei 230026China Alibaba Artiﬁcial Intelligence Governance Laboratory Alibaba GroupHangzhou 310017China

Recently, neural implicit function-basedrepresentation has attracted more and more attention,and has been widely used to represent surfacesusing differentiable neural networks. However, surfacereconstruction from point clouds or multi-view imagesusing existing neural geometry representations stillsuffer from slow computation and poor accuracy. Toalleviate these issues, we propose a multi-scale hashencoding-based neural geometry representation whicheffectively and efficiently represents the surface asa signed distance ﬁeld. Our novel neural networkstructure carefully combines low-frequency Fourierposition encoding with multi-scale hash encoding. Theinitialization of the geometry network and geometryfeatures of the rendering module are accordinglyredesigned. Our experiments demonstrate that theproposed representation is at least 10 times faster forreconstructing point clouds with millions of *** also signiﬁcantly improves speed and accuracyof multi-view reconstruction. Our code and modelsare available at https://***/Dengzhi-USTC/Neural-Geometry-Reconstruction.

关键词： neural geometry representation hash encoding point cloud reconstruction multi-view reconstruction

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