检索结果-南通市图书馆

Giant bile duct dilatation in newborn:A case report

World Journal of Clinical Cases 2024年第6期12卷 1150-1156页

作者： Dong-Wen Quan Peng-Gang Li Xiang-Hua Xu shi-qi liu The Second Clinical Medical School Shaanxi University of Chinese MedicineXianyang 712000Shaanxi ProvinceChina The First School of Clinical Medicine Shaanxi University of Chinese MedicineXianyang 712000Shaanxi ProvinceChina Department of Hepatobiliary Surgery The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061Shaanxi ProvinceChina Department of Neonatal Surgery Xi’an Children’s Hospital Affiliated Xi’an Jiaotong UniversityXi’an 710003Shaanxi ProvinceChina

BACKGROUND Giant congenital biliary dilation(CBD)is a rare condition observed in clinical *** born with this condition often experience a poor overall health status,and the disease progresses rapidly,leading to severe biliary obstruction,infections,pressure exerted by the enlarged CBD on abdominal organs,disturbances in the internal environment,and multiple organ *** treatment of giant CBD using laparoscopy is challenging due to the high degree of variation in the shape of the bile duct and other organs,making it difficult to separate the bile duct wall from adjacent tissues or to control *** SUMMARY Herein,we present the details of an 11-d-old male newborn who was diagnosed with giant *** patient was admitted to the neonatal surgery department of our hospital due to a history of common bile duct cyst that was detected more than 3 mo ago,and also because the patient had been experiencing yellowish skin for the past 9 *** abnormal echo in the fetal abdomen was first noticed by the patient’s mother during a routine ultrasound examination at a local hospital,when the patient was at 24 wk+6 d of *** finding raised concerns about the possibility of congenital biliary dilatation(22 mm×21 mm).Subsequent ultrasound examinations at different hospitals consistently confirmed the presence of a congenital biliary *** specific treatment was administered for biliary dilatation during this period.A computed tomography scan conducted during the hospitalization revealed a large cystic mass in the right upper quadrant and pelvis,measuring approximately 9.2 cm×7.4 cm×11.3 *** on the CONCLUSION The analysis reveals that prenatal imaging techniques,such as ultrasound and magnetic resonance imaging,play a crucial role in the early diagnosis,fetal prognosis,and treatment plan for giant *** surgery for giant CBD presents certain challenges,including difficulties in separating the cyst wall,anastomosis,and hemos

关键词： Acute cholangitis Congenital biliary dilation Laparoscopic surgery vs Open hepatic duct-jejunostomy Case report

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Three-dimensional spatial structure of the macro-pores and flow simulation in anthracite coal based on X-ray μ-CT scanning data

引用

Petroleum Science 2020年第5期17卷 1221-1236页

作者： Hui-Huang Fang Shu-Xun Sang shi-qi liu Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process Ministry of EducationChina University of Mining and TechnologyXuzhou 221008JiangsuChina School of Resources and Geosciences China University of Mining and TechnologyXuzhou 221116JiangsuChina Low Carbon Energy Institute China University of Mining and TechnologyXuzhou 221008JiangsuChina The Key Laboratory of Coal-Based CO 2 Capture and Geological Storage of Jiangsu Province China

The three-dimensional(3 D) structures of pores directly affect the CH4 ***,it is very important to analyze the3 D spatial structure of pores and to simulate the CH4 flow with the connected pores as the *** result shows that the equivalent radius of pores and throats are 1-16 μm and 1.03-8.9 μm,respectively,and the throat length is 3.28-231.25 μ*** coordination number of pores concentrates around three,and the intersection point between the connectivity function and the X-axis is 3-4 μm,which indicate the macro-pores have good *** the single-channel flow,the pressure decreases along the direction of CH4 flow,and the flow velocity of CH4 decreases from the pore center to the *** the dual-channel and the multi-channel flows,the pressure also decreases along the CH4 flow direction,while the velocity *** mean flow pressure gradually decreases with the increase of the distance from the inlet *** change of mean flow pressure is relatively stable in the direction horizontal to the bedding plane,while it is relatively large in the direction perpendicular to the bedding *** mean flow velocity in the direction horizontal to the bedding plane(Y-axis) is the largest,followed by that in the direction horizontal to the bedding plane(X-axis),and the mean flow velocity in the direction perpendicular to the bedding plane is the smallest.

关键词： X-rayμ-CT Representative elementary volume Pore network model Geometric and topological structures Flow simulation COMSOL

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Numerical simulation of enhancing coalbed methane recovery by injecting CO_2 with heat injection

引用

Petroleum Science 2019年第1期16卷 32-43页

作者： Hui-Huang Fang Shu-Xun Sang shi-qi liu Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process Ministry of EducationChina University of Mining and Technology School of Resources and Geosciences China University of Mining and Technology Low Carbon Energy Institute China University of Mining and Technology The Key Laboratory of Coal-based CO2 Capture and Geological Storage Jiangsu Province China University of Mining and Technology

The technology used to enhance coalbed methane(CBM) recovery by injecting CO_2(CO_2-ECBM) with heat, combining heat injection with CO_2 injection, is still in its infancy; therefore, theoretical studies of this CO_2-ECBM technology should be perused. First, the coupling equations of the di usion–adsorption–seepage–heat transfer fields of gas are established. The displacement processes under di erent pressures and temperatures are simulated by COMSOL. Finally, the displacement effects, a comparison of the CO_2 storage capacity with the CH_4 output and the e ective influencing radius of CO_2 injection are analyzed and discussed. The results show that(1) the displacement pressure and temperature are two key factors influencing the CH_4 output and the CO_2 storage capacity, and the increase in the CO_2 storage capacity is more sensitive to temperature and pressure than the CH_4 output.(2) The gas flow direction is from the injection hole to the discharge hole during the displacement process, and the regions with high velocity are concentrated at the injection hole and the discharge hole.(3) A reduction in the CH_4 concentration and an increase in the CO_2 concentration are obvious during the displacement process.(4) The e ective influencing radius of injecting CO_2 with heat increases with the increase in time and pressure. The relationship between the e ective influencing radius and the injection time of CO_2 has a power exponential function, and there is a linear relationship between the functional coe cient and the injection pressure of CO_2. This numerical simulation study on enhancing CBM recovery by injecting CO_2 with heat can further promote the implementation of CO_2-ECBM project in deep coal seams.

关键词： CO2-ECBM Numerical simulation Displacement effect COMSOL CO2 storage capacity Effective influencing radius

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

One-bit splitting deceptive jamming against SAR

引用

Defence Technology（防务技术） 2022年第10期18卷 1760-1777页

作者： Bo Zhao Lei Huang Bing Li shi-qi liu Wei-min Bao Guangdong Key Laboratory of Intelligent Information Processing College of Information EngineeringShenzhen UniversityShenzhen518060China China Aerospace Science and Technology Corporation Beijing100048China

One-bit quantization is a promising technique due to its performance retention and complexity reduction in a deceptive jammer against synthetic aperture radar(SAR).In this paper,the 1-bit quantization technology is utilized to agilely generate split false targets in the SAR imagery once the radar signal is intercepted,which reduces the complexity of the jammer significantly with guaranteed focusing quality.A single-frequency threshold is used to decompose harmonics incurred by the 1-bit quantization,and its parameters are adjusted through different pulse repetition intervals to provide steerable *** this way,the SAR signal is split into coupled false scatterers during the 1-bit *** further deploying amplitude,time-delay,and Doppler frequency modulations on the 1-bit intercepted signal,the split false targets are *** proposed approach is compared with different deceptive jamming methods to show its validity in effectiveness and cost,and numerical experiments are also presented for verification.

关键词： Synthetic aperture radar(SAR) 1-Bit quantization Multi-false-target Single-frequency threshold

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Endoscopic magnetic compression stricturoplasty for congenital esophageal stenosis:A case report

引用

World Journal of Clinical Cases 2022年第33期10卷 12313-12318页

作者： shi-qi liu Yi Lv Rui-Xue Luo Department of Nursing The Medical CollegeXijing UniversityXi’an 710123Shaanxi ProvinceChina Department of Hepatobiliary Surgery The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061Shaanxi ProvinceChina The Corrosion&Protection Research Lab Northwest Institute for Nonferrous Metal ResearchXi’an 710016Shaanxi ProvinceChina

BACKGROUND Congenital esophageal stenosis(CES)is a rare malformation of the digestive *** dilation and thoracotomy have been the main treatments for ***,there is no well-defined management *** compression stricturoplasty(MCS)has been used in refractory esophageal stricture in children after esophageal *** SUMMARY We describe the first case of MCS for CES in one female child *** child(aged 3 years and 1 mo)was admitted due to frequent vomiting and choking after eating complementary food since 7 mo *** and gastroendoscopy showed that there was stenosis in the lower esophagus,suggesting a diagnosis of *** patient did not receive any treatment for esophageal stricture including surgery or endoscopic dilation procedures before *** procedure was smoothly conducted without *** 24 mo after MCS,durable esophageal patency without dysphagia was *** MCS may serve as an alternative and efficient method for patients with CES.

关键词： Congenital esophageal stenosis Magnetic compression stricturoplasty Endoscopy Case report

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research Progress of qiweibaizhu Powder in Treating Digestive System Diseases

引用

World Journal of Traditional Chinese Medicine 2021年第4期7卷 391-396页

作者： shi-qi liu Ji Li College of Basic Medical Sciences Heilongjiang University of Chinese MedicineHarbinChina

Diarrhea is a common clinical problem that can lead to health complications,including *** is the second-most common cause of death in *** World Health Organization introduced a program to encourage the development and use of traditional herbal medicines in the treatment of *** Powder(QWBZP)is a well-known pediatric prescription in China that is commonly used to treat digestive system diseases,such as diarrhea,which is also a type of syndrome in traditional Chinese *** studies have examined the clinical effects and mechanisms of QWBZP,and innovative and improved formulations have been *** studies on the effects of QWBZP on diarrhea caused by human rotavirus,antibiotic-associated diarrhea,and mesenteric lymphadenitis in experimental models and clinical trials with diarrhea patients have been *** conducted a literature search of several databases,including PubMed,China National Knowledge Infrastructure,Chongqing VIP Information Co.,Ltd.,and Wanfang.A short background of the QWBZP is also *** collective findings highlight the curative effects of QWBZP on diarrhea caused by viral infection,antibiotic use,and mesenteric ***,QWBZP can regulate the balance of the gastrointestinal microbiota and protect and repair the intestinal mucosal *** review will provide a reference for further studies on QWBZP.

关键词： Antibiotic-associated diarrhea intestinal microbiota mesenteric lymphadenitis spleen deficiency viral diarrhea

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Characteristics of high-rank coal structure parallel and perpendicular to the bedding plane via NMR and X-ray CT

引用

Petroleum Science 2020年第4期17卷 925-938页

作者： shi-qi liu Shu-Xun Sang qiu-Jia Hu Hui-Huang Fang Low Carbon Energy Institute China University of Mining and TechnologyXuzhou 221008China Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization China University of Mining and TechnologyXuzhou 221008China School of Mineral Resource and Geoscience China University of Mining and TechnologyXuzhou 221116China Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process Ministry of EducationChina University of Mining and TechnologyXuzhou 221008China Shanxi CBM Branch of Huabei Oilfeld Company China National Petroleum CorporationJincheng 048000China

Pores and fractures and their connectivity play a significant role in coalbed methane *** investigate the growth characteristics and connectivity of pores and fractures in coal parallel and perpendicular to the bedding plane,the pores and fractures of high-rank coal samples collected from the southern qinshui Basin were measured by low-field nuclear magnetic resonance,X-ray-computed tomography and field emission scanning electron ***,the determinants of their connectivity were further *** results show that the high-rank coal samples have similar pore size distributions both parallel and perpendicular to the bedding *** primarily contain mesopores(2-50 nm in width),followed by macrospores(> 50 nm in width).The research indicated that the high-rank coal connectivity parallel to the bedding plane is significantly better than that perpendicular to the bedding *** connectivity of high-rank coal is mainly determined by throats,and the orientation of the pores and *** two connectivity modes in high-rank coal are "pore connectivity," in which the throats are mainly pores with a low coordination number,and "microfissure connectivity",in which the throats are mainly microfissures with a high coordination number.

关键词： Porosity Connectivity Pore width Microfissure High-rank coal qinshui Basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A super resolution target separation and reconstruction approach for single channel sar against deceptive jamming

引用

Defence Technology（防务技术） 2023年第3期21卷 164-175页

作者： shi-qi liu Bing Li Bo Zhao Lei Huang Yue-zhou Wu Wei-min Bao Guangdong Key Laboratory of Intelligent Information Processing College of Electronic and Information EngineeringShenzhen UniversityShenzhen518060China School of Electrical Engineering Southwest Jiaotong UniversityChengdu611756China State Key Laboratory of Millimeter Waves Southeast UniversityNanjing210096China School of Computer Science Civil Aviation Flight University of ChinaGuanghan618307China China Aerospace Science and Technology Corporation Beijing100048China

The excellent remote sensing ability of synthetic aperture radar(SAR)will be misled seriously when it encounters deceptive jamming which possesses high fidelity and *** this paper,the dynamic synthetic aperture(DSA)scheme is used to extract the difference between the true and false targets.A simultaneous deceptive jamming suppression and target reconstruction method is proposed for a single channel SAR system to guarantee remote sensing *** system model is formulated as a sparse signal recovery problem with an unknown parametric dictionary to be *** iterative reweighted method is employed to jointly handle the dictionary parameter learning and target reconstruction problem in an majorization-minimization framework,where a surrogate function majorizing the Gaussian entropy in the objective function is introduced to circumvent its *** dictionary parameter learning,the grid mismatching problem in a fixed grid based method is ***,the proposed method can reap a super resolution ***,a simple yet effective DSA section scheme is developed for the SAR data excerpting,in which only two DSAs are *** results about location error and reconstruction power error reveal that the proposed method is able to achieve a good performance in deceptive jamming suppression.

关键词： channel resolution separation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Antimicrobial Properties and Application of Polysaccharides and Their Derivatives

引用

Chinese Journal of Polymer Science 2021年第2期39卷 133-146,I0004页

作者： Gui-Xue Xia Yue-Ming Wu Yu-Fang Bi Kang Chen Wei-Wei Zhang shi-qi liu Wen-Jing Zhang Run-Hui liu State Key Laboratory of Bioreactor Engineering East China University of Science and TechnologyShanghai 200237China Frontiers Science Center for Materiobiology and Dynamic Chemistry Key Laboratory of Specially Functional Polymeric Materials and Related Technology(ECUST)Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China

With the quick emergence of antibiotic resistance and multi-drug resistant microbes,more and more attention has been paid to the development of new antimicrobial agents that have potential to take the ***,as one of the major classes of biopolymers,were explored for their antimicrobial properties and applications,owing to their easy accessibility,biocompatibility and easy *** and their derivatives have variable demonstrations and applications as antimicrobial agents and antimicrobial biomaterials.A variety of polysaccharides,such as chitosan,dextran,hyaluronic acid,cellulose,other plant/animal-derived polysaccharides and their derivatives have been explored for antimicrobial *** expect that this review can summarize the important progress of this field and inspire new concepts,which will contribute to the development of novel antimicrobial agents in combating antibiotic resistance and drug-resistant antimicrobial infections.

关键词： Antimicrobial Drug resistance Polysaccharides Polysaccharide derivatives Chitosan

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Triclosan-conjugated,Lipase-responsive Polymeric Micelles for Eradication of Staphylococcal Biofilms

引用

Chinese Journal of Polymer Science 2024年第6期42卷 718-728页

作者： Yan-qiang Huang Yuan-Feng Li Yong liu Lin-qi shi Guangxi Technology Innovation Cooperation Base of Prevention and Control Pathogenic Microbes with Drug Resistance Youjiang Medical University for NationalitiesBaise533000China Translational Medicine Laboratory the First Affiliated Hospital of Wenzhou Medical UniversityWenzhou325035China Wenzhou Institute University of Chinese Academy of SciencesWenzhou325001China State Key Laboratory of Medicinal Chemical Biology Key Laboratory of Functional Polymer Materials of Ministry of Educationand Institute of Polymer ChemistryCollege of ChemistryNankai UniversityTianjin300071China

Bacterial biofilms present a significant challenge in treating drug-resistant infections,necessitating the development of innovative *** this study,we introduce triclosan-conjugated,lipase-responsive polymeric micelles designed to exploit biofilm properties and serve as a responsive drug delivery *** micelles were created using an amphiphilic block polymer synthesized via ring-opening polymerization ofε-caprolactone(CL)and triclosan-containing cyclic trimethylene carbonate(MTC-Tri).Poly(ethylene glycol)(PEG-OH)acted as the macro-initiator,resulting in micelles with a PEG shell that facilitated their penetration into bacterial *** important advantage of our micelles lies in their interaction with local bacterial lipases within *** lipases triggered rapid micelle degradation,releasing triclosan in a controlled *** liberated triclosan effectively eliminated bacteria embedded in the ***,the triclosan-conjugated micelles displayed minimal toxicity to murine fibroblasts,indicating their biocompatibility and *** finding emphasizes the potential application of these micelles in combatting drug resistance observed in bacterial *** triclosan-conjugated,lipase-responsive polymeric micelles exhibit promising characteristics for addressing drug resistance in bacterial *** harnessing biofilm properties and implementing a responsive drug delivery system,we seek to provide an effective solution in the fight against drug-resistant bacteria.

关键词： Self-assembly Polymer prodrug Ring-opening polymerization Biofilm eradication Cytotoxicity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：