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Identification and hazard analysis of landslides triggered by earthquakes and rainfall

Earthquake Research Advances 2024年第3期4卷 42-54页

作者： lei Li Yu Zhang Yunlong Hou Bingbing Han ning An Hui Zhang Ying Ma School of Traffic and Transportation Lanzhou Jiaotong UniversityLanzhou730070China Key Laboratory of Railway Industry on Plateau Railway Transportation Intelligent Management and Control Lanzhou Jiaotong UniversityLanzhou730070China Gansu Institute of Engineering Geology Lanzhou730030China School of Civil Engineering Lanzhou Jiaotong UniversityLanzhou730070China

This study aims to utilize the Small Baseline Subset Interferometric Synthetic Aperture Radar(SBAS-In SAR)technique and Google Earth optical remote sensing images to analyze the area within 20 km around the epicenter of a M 3.9, earthquake that occurred in Tanchang County, Gansu Province, on December 28, 2020. The objective is to identify potential earthquake-induced landslides, assess their scale, and determine their impact range. The study results reveal the successful identification of two potential landslides in the 20 km radius around the epicenter. Through time-series deformation analysis, it was observed that these potential landslides were significantly influenced by both the earthquake and rainfall. Further estimation of these potential landslides indicates maximum depths of 7.4 m and 14.1 m for the failure surfaces, with volumes of 9.02 × 10~4m~3and 25.5 ×10~4m~3, respectively. Finally, based on the simulation analysis of Massflow software, the maximum thickness of soil accumulation in the final accumulation area after sliding of the potential landslide in Shangyaai is 12 m, the area of the final accumulation area is 1.75 × 10~4m~2, and the farthest movement distance is 1124 m. The maximum thickness of soil accumulation in the final accumulation area after sliding of the potential landslide in wangshancun is 8 m, the area of the final accumulation area is 7.89 × 10~4m~2, and the farthest movement distance is 742 m.

关键词： SBAS-InSAR technology Earthquake Deformation monitoring Landslide Massflow Hazard analysis

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Clinical and molecular characterization of 10 Chinese children with congenital adrenal hyperplasia due to 11beta‑hydroxylase deficiency

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World Journal of Pediatrics 2024年第4期20卷 422-433页

作者： Wen‑Li Lu Xiao‑Yu Ma Jiao Zhang Jun‑Qi wang Ting‑Ting Zhang lei Ye Yuan Xiao Zhi‑Ya Dong Wei wang Shou‑Yue Sun Chuan‑Yin Li Rong‑Gui Hu Guang ning Li‑Dan Zhang Department of Pediatrics Ruijin HospitalShanghai Jiao Tong University School of MedicineNo.197Ruijin 2nd RdHuangpu DistrictShanghai 200025China Department of Pediatric Genetic and Metabolic Endocrinology West China Second University HospitalSichuan UniversityNo.20Section 3Renmin South RoadSichuan 610041China Department of Endocrine and Metabolic Diseases Shanghai Clinical Center for Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Cancer Center School of MedicineShanghai Tenth People’s HospitalTongji UniversityYanchang Zhong Lu 301St RdJing’an DistrictShanghai 200031China

Background The clinical manifestations of nonclassical 11beta-hydroxylase deficiency are very similar to those of nonclassical 21-hydroxylase *** this study,we investigated the relationship between the clinical and molecular features of congenital adrenal hyperplasia caused by 11beta-hydroxylase deficiency and reviewed the related literature,which are expected to provide assistance for the clinical diagnosis and analysis of congenital adrenal *** Clinical data for 10 Chinese patients diagnosed with congenital adrenal hyperplasia in our hospital from 2018 to 2022 were retrospectively *** examined the effects of gene mutations on protease activity and constructed threedimensional structure prediction models of *** We describe 10 patients with 11beta-hydroxylase gene mutations(n=5,46,XY;n=5,46,XX),with 10 novel mutations were *** patients received treatment at an early stage,with an average age of 2.08±1.66 years,whereas male patients received treatment significantly later,at an average age of 9.77±3.62 *** most common CYP11B1 pathogenic variant in the Chinese population was found to be c.1360C>*** mutations lead to spatial conformational changes that affect protein *** Our study found that there was no significant correlation between each specific mutation and the severity of clinical *** patients with the same gene pathogenic variant may have mild or severe clinical *** correlation between genotype and phenotype needs further ***-dimensional protein simulations may provide additional support for the physiopathological mechanism of genetic mutations.

关键词： 11β-hydroxylase deficiency CYP11B1 Enzymatic activity Phenotype-genotype correlation Threedimensional protein simulations

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Treatment of hemolymphangioma by robotic surgery: A case report

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World Journal of Gastrointestinal Surgery 2024年第2期16卷 596-600页

作者： Tian-ning Li Yan-Hong Liu Jia Zhao Hong Mu lei Cao Department of Clinical Lab Tianjin First Central HospitalTianjin 300000China Nankai University Tianjin Union Medical CenterTianjin 300000China Tianjin Medical University Tianjin First Center HospitalTianjin 300000China

BACKGROUND Hemolymphangioma of the jejunum is rare and lacks clinical specificity,and can manifest as gastrointestinal bleeding,abdominal pain,and intestinal *** tomography,magnetic resonance imaging,and other examinations show certain characteristics of the disease,but lack *** capsule endoscopy and enteroscopy make up for this deficiency,the diagnosis also still re-quires *** SUMMARY A male patient was admitted to the hospital due to abdominal distension and abdominal pain,but a specific diagnosis by computed tomography examination was not *** resection of the small intestine was performed by robotic surgery,and postoperative pathological biopsy confirmed the diagnosis of *** recurrence in the follow-up examination was *** Robotic surgery is an effective way to treat hemolymphangioma through minima-lly invasive techniques under the concept of rapid rehabilitation.

关键词： Hemolymphangioma Enteroscopy Robotic surgery Rehabilitation Case report

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Study on the clogging mechanism of punching screen in sand control by the punching structure parameters

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Petroleum Science 2024年第1期21卷 609-620页

作者： Fu-Cheng Deng Fu-Lin Gui Bai-Tao Fan lei Wen Sheng-Hong Chen ning Gong Yun-Chen Xiao Zhi-Hui Xu Yangtze University Jingzhou434023HubeiChina CNOOC Research Institute Ltd. Beijing100028China CNOOC Ener Tech-Drilling&Production Co. Tianjin300457China Tianjin Branch of CNOOC Ltd. Tianjin300459China

As an independent sand control unit or a common protective shell of a high-quality screen,the punching screen is the outermost sand retaining unit of the sand control pipe which is used in geothermal well or oil and gas ***,most screens only consider the influence of the internal sand retaining medium parameters in the sand control performance design while ignoring the influence of the plugging of the punching screen on the overall sand retaining performance of the *** explore the clogging mechanism of the punching screen,this paper established the clogging mechanism calculation model of a single punching screen sand control unit by using the computational fluid mechanics-discrete element method(CFD-DEM)combined *** to the combined motion of particles and fluids,the influence of the internal flow state on particle motion and accumulation was *** results showed that(1)the clogging process of the punching sand control unit is divided into three stages:initial clogging,aggravation of clogging and stability of *** the initial stage of blockage,coarse particles form a loose bridge structure,and blockage often occurs preferentially at the streamline gathering place below chamfering inside the sand control *** the stage of blockage intensification,the particle mass develops into a relatively complete sand bridge,which develops from both ends of the opening to the center of the *** the stable plugging stage,the sand deposits show a“fan shape”and form a“V-shaped”gully inside the punching slot element.(2)Under a certain reservoir particle-size distribution,The slit length and opening height have a large influence on the permeability and blockage rate,while the slit width size has little influence on the permeability and blockage *** microscopic clogging mechanism and its law of the punching screen prevention unit are proposed in this study,which has some field guidance significance for the design of punching screen

关键词： Punching screen Plugging CFD-DEM Size parameter Sand control

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Ti_(3)C_(2)T_(x)/SnO_(2)P–N heterostructure construction boosts room-temperature detecting formaldehyde

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Rare Metals 2024年第1期43卷 267-279页

作者： Yue Zhang Ming-Yue wang Xiao-Guang San Yan-Bai Shen Guo-Sheng wang lei Zhang Dan Meng College of Chemical Engineering Shenyang University of Chemical TechnologyShenyang 110142China Institute for Superconducting and Electronic Materials(ISEM) Australian Institute for Innovative Materials(AIIM)University ofWollongongWollongongNSW2500Australia College of Resources and Civil Engineering Northeastern UniversityShenyang 110819China

Formaldehyde is a common atmospheric pollutant produced in industrial production and daily ***,the traditional semiconductor formaldehyde gas sensor cannot work at room temperature,which limits its practical ***,developing high-performance gas sensors for rapidly and accurately detecting formaldehyde at room temperature is an important *** this study,Ti_(3)C_(2)Tx/SnO_(2)heterostructures were constructed,which could selectively detect formaldehyde at room temperature with a response value of 29.16%(10×10^(-6)).In addition,the sensor shows a remarkable theoretical detection limit of 5.09×10^(-9)and good longterm *** functional theory(DFT)simulations reveal that SnO_(2)nano spheres provide the majority of adsorption sites that strongly interact with ***,Ti_(3)C_(2)T_(x)acting as a conductive layer facilitates the transfer of charge carriers so that they show a sensing response to formaldehyde at room ***,the formation of p-n heterostructures between SnO_(2)and Ti_(3)C_(2)T_(x)boosts the Schottky barrier at the interface,which is the critical factor in enhancing the sensing properties by turning the Schottky barrier upon introducing formaldehyde *** perspective is expected to provide instructive guidance for utilizing MXene/metal oxide nanocomposites to improve the gas sensing performance at room temperature.

关键词： Ti_(3)C_(2)T_(x)/SnO_(2)nanocomposites p-n heterostructures Formaldehyde sensing Room temperature DFT calculations

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Risk Assessments for Type 1 Wild Poliovirus and Type 2 Vaccine-Derived Poliovirus Importation and Transmission—China,2023

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China CDC weekly 2024年第42期6卷 1098-1104,I0007,I0008页

作者： Wei Kang Chunxiang Fan Yifan Song Zhaonan Zhang Xiaoqi wang Miao wang Jing Ma Mulei Chen Yuzhen Yang Yi Wen lei Cao Lance Rodewald Fuzhen wang Zundong Yin ning Wen Hong Yang National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases Chinese Center for Disease Control and PreventionBeijingChina National Immunization Program Chinese Center for Disease Control and PreventionBeijingChina Education and Training of Chinese Center for Disease Control and Prevention BeijingChina

Introduction:All countries face the potential threat of imported polioviruses,including both wild type and circulating vaccine-derived *** response,we conducted a province-level assessment in China to evaluate the risk of importation and transmission of type 1 wild poliovirus(WPV1)and type 2 vaccine-derived poliovirus(VDPV2).Methods:Distinct risk assessment tools for WPV1 and VDPV2 were employed,incorporating three primary indicators—population immunity,poliovirus surveillance,and importation ***1 was assessed using 13 secondary indicators,whereas VDPV2 utilized 21 secondary *** used comprehensive provincial data from the preceding five ***(S-values)were derived from the secondary indicators’criteria and ratings,and used to classify the provincial-level administrative divisions(PLADs)into three risk categories:high,medium,and *** top 10%of PLADs were designated as highrisk,with the remaining provinces equally distributed into medium-and low-risk ***:In 2023,Xizang,Qinghai,and Xinjiang PLADs faced the highest risk of WPV1 importation and transmission;Xizang,Shaanxi,and Hainan PLADs were at the greatest risk for VDPV2 importation and ***:Risk assessment for VDPV2 importation and transmission has identified a distinct set of high-risk provinces compared to those identified by WPV1 risk *** and proactive response measures tailored to the specific risks should be implemented to maintain China’s polio-free status.

关键词： immunity maintain utilized

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Appendiceal intussusception complicated by adenocarcinoma of the cecum:A case report

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World Journal of Clinical Cases 2024年第8期12卷 1461-1466页

作者： Yu Long Yi-ning Xiang Fei Huang lei Xu Xiao-Yun Li Yun-Huan Zhen Department of Colorectal Surgery The Affiliated Hospital of Guizhou Medical UniversityGuiyang 550001Guzihou ProvinceChina Department of Colorectal Surgery Guizhou Medical UniversityGuiyang 550001Guizhou ProvinceChina Department of Pathology The Affiliated Hospital of Guizhou Medical UniversityGuiyang 550001Guizhou ProvinceChina

BACKGROUND Appendiceal intussusception is a pathological condition in which the appendix is inverted into the cecum,which may cause symptoms that resemble those of other gastrointestinal disorders and may induce intestinal *** rarity of this case presentation is the co-occurrence of appendiceal intussusception and cecal adenocarcinoma,a combination that to our knowledge has not previously been reported in the medical *** case provides new insights into the complexities of diagnosing and managing overlapping *** SUMMARY A 25-year-old woman presented with persistent periumbilical pain and bloody *** initial biopsy showed cecal cancer;however,subsequent colonoscopy and computed tomography findings raised the suspicion of appendiceal intussus-ception,which was later confirmed *** unique case was charac-terized by a combination of intussusception and adenocarcinoma of the *** intervention included a laparoscopic right hemicolectomy,which led to the histopathological diagnosis of mucinous adenocarcinoma with appendiceal *** patient recovered well postoperatively and was advised to initiate adjuvant *** case highlights not only the importance of considering appendiceal intussusception in the differential diagnosis,but also the possibility of appendicitis and the atypical presentation of neoplastic *** Physicians should consider the possibility of appendiceal intussusception in cases of atypical appendicitis,particularly when associated with neoplastic presentation.

关键词： Appendiceal intussusception Appendicitis Cecal cancer Target signs Misdiagnosis Case report

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Application of novel super-exponential iteration algorithm in underwater acoustic channel

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Journal of Systems Engineering and Electronics 2024年第5期35卷 1122-1131页

作者： ning Xiaoling FU Bing ZHANG Linsen QIU Jiahao ZHU lei FENG Chengxu Department of Weaponry Engineering Naval University of EngineeringWuhan 430033China Unit 91959 of the PLA Sanya 572000China The 9th Student Brigade Naval University of EngineeringWuhan 430033China

A novel variable step-size modified super-exponential iteration(MSEI)decision feedback blind equalization(DFE)algorithm with second-order digital phase-locked loop is put forward to improve the convergence performance of super-exponential iteration DFE *** on the MSEI-DFE algorithm,it is first proposed to develop an error function as an improvement to the error function of MSEI,which effectively achieves faster convergence speed of the ***,a hyperbolic tangent function variable step-size algorithm is developed considering the high variation rate of the hyperbolic tangent function around zero,so as to further improve the convergence speed of the *** the end,a second-order digital phase-locked loop is introduced into the decision feedback equalizer to track and compensate for the phase rotation of equalizer input *** the multipath underwater acoustic channel with mixed phase and phase rotation,quadrature phase shift keying(QPSK)and 16 quadrature amplitude modulation(16QAM)modulated signals are used in the computer simulation of the algorithm in terms of convergence and carrier recovery *** results show that the proposed algorithm can considerably improve convergence speed and steady-state error,make effective compensation for phase rotation,and efficiently facilitate carrier recovery.

关键词： super-exponential decision feedback variable stepsize phase rotation digital phase-locked loop underwater acoustic channel

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Coverage of the Combined DTaP-IPV/Hib Vaccine Among Children Aged 2-18 Months—9 PLADs,China,2019-2021

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China CDC weekly 2024年第19期6卷 418-423,I0001页

作者： Li Li Hui Liang Yifan Song Zhaonan Zhang Jing An ning Li Huifeng Sun Ying Bao leijin Mao Lin Ding Jie Yan Zhiguo wang lei Cao Jiakai Ye Wenzhou Yu National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases BeijingChina National Immunization Program Chinese Center for Disease Control and PreventionBeijingChina Zhejiang Center for Disease Control and Prevention Hangzhou CityZhejiang ProvinceChina Gansu Center for Disease Control and Prevention Lanzhou CityGansu ProvinceChina Hubei Center for Disease Control and Prevention Wuhan CityHubei ProvinceChina Shandong Center for Disease Control and Prevention Jinan CityShandong ProvinceChina Sichuan Center for Disease Control and Prevention Chengdu CitySichuan ProvinceChina Anhui Center for Disease Control and Prevention Hefei CityAnhui ProvinceChina Guizhou Center for Disease Control and Prevention Guiyang CityGuizhou ProvinceChina Hunan Center for Disease Control and Prevention Changsha CityHunan ProvinceChina Jiangsu Center for Disease Control and Prevention Nanjing CityJiangsu ProvinceChina

Summary What is already known on this topic?In China,there is limited data available on the use and coverage of the non-program,combined diphtheria,tetanus toxoid,acellular pertussis adsorbed,inactivated poliovirus and haemophilus influenzae type b(DTaPIPV/Hib)pentavalent vaccine,and its role as a substitute for the separately administered standalone program vaccines.

关键词： vaccine Hib DTaP

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我国农村地区癌症筛查困境及人工智能助力对策分析

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中国公共卫生 2024年第1期40卷 114-117页

作者：张希杨雷王宁北京大学肿瘤医院暨北京市肿瘤防治研究所北京市肿瘤防治研究办公室恶性肿瘤发病机制及转化研究教育部重点实验室北京100142

随着国家面向农村医疗卫生扶持政策的实施,越来越多的农村地区开始了常见癌症筛查和早诊早治工作,但一些农村地区癌症筛查仍然存在人力资源短缺、筛查标准规范匮乏、卫生服务能力不足及医疗机构诊疗能力较弱等困境。人工智能具有强大的... 详细信息

随着国家面向农村医疗卫生扶持政策的实施,越来越多的农村地区开始了常见癌症筛查和早诊早治工作,但一些农村地区癌症筛查仍然存在人力资源短缺、筛查标准规范匮乏、卫生服务能力不足及医疗机构诊疗能力较弱等困境。人工智能具有强大的分析处理能力,可通过其与居民电子健康档案、电子病历和个人可穿戴健康智能监测设备等绑定关联,获取居民相对客观和准确的健康信息,解决农村地区癌症筛查人力资源短缺困境;同时可依托人工智能强大的算力,形成标准化、规范化的癌症筛查指南,有效提升农村地区医务人员诊疗水平及癌症筛查的效率和可及性。本文对我国目前农村地区癌症筛查困境及人工智能助力对策进行了概述,以期为推进我国农村地区癌症筛查工作高质量发展提供新思路。

关键词：癌症筛查人工智能农村地区

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