检索结果-南通市图书馆

Numerical study on gas production via a horizontal well from hydrate reservoirs with different slope angles in the South China Sea

引用

Deep Underground Science and Engineering 2024年第2期3卷 171-181页

作者： Tingting Luo Jianlin Song Xiang Sun Fanbao cheng Madhusudhan Bangalore Narasimha Murthy Yulu chen Yi Zhao Yongchen Song School of Mechanics and Civil Engineering China University of Mining and TechnologyXuzhouChina Institute of Rock and Soil Mechanics Chinese Academy of SciencesWuhanChina Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education Dalian University of TechnologyDalianChina Faculty of Engineering and the Environment University of SouthamptonSouthamptonUK

It is important to study the effect of hydrate production on the physical and mechanical properties of low-permeability clayey–silty reservoirs for the largescale exploitation of hydrate reservoirs in the South China *** this study,a multiphysical-field coupling model,combined with actual exploration drilling data and the mechanical experimental data of hydrate cores in the laboratory,was established to investigate the physical and mechanical properties of low-permeability reservoirs with different slope angles during 5-year hydrate production by the depressurization method via a horizontal *** result shows that the permeability of reservoirs severely affects gas production rate,and the maximum gas production amount of a 20-m-long horizontal well can reach186.8 m3/day during the 5-year hydrate *** with smaller slope angles show higher gas production *** depressurization propagation and hydrate dissociation mainly develop along the direction parallel to the ***,the mean effective stress of reservoirs is concentrated in the near-wellbore area with the on-going hydrate production,and gradually decreases with the increase of the slope *** from the effective stress distribution law,the total reservoir settlement amount first decreases and then increases with the increase of the slope *** maximum settlement of reservoirs with a 0°slope angle is up to 3.4 m,and the displacement in the near-wellbore area is as high as2.2 m after 5 years of hydrate *** is concluded that the pore pressure drop region of low-permeability reservoirs in the South China Sea is limited,and various slope angles further lead to differences in effective stress and strain of reservoirs during hydrate production,resulting in severe uneven settlement of reservoirs.

关键词： effective stress low‐permeability reservoirs natural gas hydrate production numerical simulation settlement slope angle the South China

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

Erratum to:Efficient and stable perovskite solar cells by build-inπ-columns and ionic interfaces in covalent organic frameworks

引用

Nano Research 2024年第5期17卷 4639-4640页

作者： Riming Nie Xiaokai chen Zhongping Li Weicun Chu Si Ma Changqing Li Xiaoming Liu Yonghua chen Zhuhua Zhang Wanlin Guo State Key Laboratory of Mechanics and Control of Mechanical Structures Key Laboratoryfor Itligent Nano Materials and Devices of the Ministry of EducationInstitute for Frontier ScienceNanjing University of Aeronautics and AstronauticsNarnjing 210016China Department of Chemical and Biomolecular Engineering Yonsei Universit50 Yonsei roSeodaemun-guSeoul 120749Republic of Korea College of Chemistry jilin UniversityChangchun 130012China Department of Energy and Chemical Engineering Ulsan National Instute of Science and Technology(UNIST)50 UNIST-gilEonyang-eupUju-gunUlsan 44919Republic of Korea Key Laboratory of Flexible Electronics(KLoFE) School of Flexible Electronics(Future Technologies)&Institute of Advanced Materials(IAM)Nanjing Tech University(Nanjing Tech)Nanjing 211816China

Erratum to Nano Research,2023,16(7):9387-9397 htps:/***/0.100/1274-023-5603-040(1)One sentence in the article was unfortunately mispresented on page *** of As shown in Fig.S19 in the ESM,the A2/A2 values of the refere... 详细信息

关键词： COF columns perovskite

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

A comprehensive diagnostic system of ultra-thin liquid sheet targets

引用

High Power Laser Science and Engineering 2024年第3期12卷 41-50页

作者： Ziyang Peng Zhengxuan Cao Xuan Liu Yinren Shou Jiarui Zhao Shiyou chen Ying Gao Pengjie Wang Zhusong Mei Zhuo Pan Defeng Kong Shirui Xu Zhipeng Liu Yulan Liang Tianqi Xu Tan Song Xun chen Qingfan Wu Yujia Zhang Zihao Zhang Xueqin Yan Wenjun Ma State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijingChina National Key Laboratory of Shock Wave and Detonation Physics Institute of Fluid PhysicsChina Academy of Engineering PhysicsMianyangChina Center for Relativistic Laser Science Institute for Basic ScienceGwangjuRepublic of Korea Institute of Radiation Physics Helmholtz-Zentrum Dresden RossendorfDresdenGermany Beijing Laser Acceleration Innovation Center BeijingChina Institute of Guangdong Laser Plasma Technology GuangzhouChina

To meet the demands of laser-ion acceleration at a high repetition rate,we have developed a comprehensive diagnostic system for real-time and in situ monitoring of liquid sheet targets(LSTs).The spatially resolved rapid characterizations of an LST’s thickness,flatness,tilt angle and position are fulfilled by different subsystems with high *** the help of the diagnostic system,we reveal the dependence of thickness distribution on collision parameters and report the 238-nm liquid sheet generated by the collision of two liquid *** methods for the flatness and tilt angle of LSTs have also been provided,which are essential for applications of laser-driven ion acceleration and others.

关键词： diagnostics laser-ion acceleration liquid sheet targets

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

Diet mediates the gut microbiome composition and assembly processes in infant and toddler populations

引用

Food Science and Human Wellness 2024年

作者： Shumin Wang Leilei Yu Fengwei Tian Wei chen Qixiao Zhai State Key Laboratory of Food Science and Resources， Jiangnan University School of Food Science and Technology， Jiangnan University National Engineering Research Center for Functional Food， Jiangnan University

Infancy and toddlerhood are critical phases of life， as the gut microbiota is established here， which influences current and future health. During this period， the microbiota was relatively less stable and highly responsive to environmental factors. Therefore， it is important to understand how dietary factors affect this complex stage of microbial assembly. The effect of feeding practices (breast milk/formula) on microbial colonization in early infancy has been actively studied; however， studies on the effect of diet on the gut microbiota during the complementary feeding period are sparse. The introduction of complementary foods provides abundant new dietary compounds for the gut microbiota， which induces a shift in gut microbiota and metabolism from milk-adapted toward a more mature and diverse adult-like community. Herein， we discuss the impact of dietary nutrients (carbohydrates， proteins， fats， vitamins， and minerals) on microbiome of infants and toddlers. Furthermore， this review summarizes the effects of complementary feeding patterns， specific foods (such as cereals; legumes and nuts; vegetables and fruits; meats; dairy products)， food additives， and malnutrition (undernutrition or overnutrition) on gut microbiota of this populations. These findings might deepen our comprehension of the complex interactions between diets and the development and establishment of the gut microbiota. This may facilitate the tailoring of interventions aimed at promoting beneficial modifications within the gut microbial community. Furthermore， the insights gained could inform the design and implementation of safe and efficacious complementary feeding practices.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Mechanisms of hyponatremia and diabetes insipidus after acute spinal cord injury:a critical review

引用

Chinese Neurosurgical Journal 2024年第1期10卷 42-47页

作者： Lianhua Li Yanhui Guo chen chen Zhonghe Wang Zhi Liu Department of Orthopedics the Fourth Medical Center of PLA General HospitalBeijingChina

The incidence of hyponatremia after spinal cord injury was reported to be between 25 and 80%.Hyponatremia can lead to a variety of clinical symptoms,from mild to severe and even *** is often associated with diabetes insipidus,which refers to insufficient arginine vasopressin(AVP)secretion or defective renal response to AVP,with clinical manifestations of syndromes such as hypoosmolality,polydipsia,and *** mechanistic studies on hyponatremia and diabetes insipidus after acute spinal cord injury have been performed in isolation,without integrating the above two symptoms into different pathological manifestations that occur in the same injury state and without considering the acute spinal cord injury patient’s condition as a *** therapeutic principles of CSWS and SIADH are in opposition to one *** is not easy to identify the mechanism of hyponatremia in clinical practice,which makes selecting the treatment *** to the existing theories,treatments for hyponatremia and diabetes insipidus together are contraindicated,whether the mechanism of hyponatremia is thought to be CSWS or *** this paper,we review the mechanism of these two pathological manifestations and suggest that our current understanding of the mechanisms of hyponatremia and diabetes insipidus after high acute cervical SCI is insufficient,and it is likely that there are other undetected pathogenetic mechanisms.

关键词： Mechanism Hyponatremia Diabetes insipidus Spinal cord injury

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

Fucoidan protects against LPS-induced mastitis and enhances the integrity of blood-milk barrier by activating AMPK/Nrf2 and autophagy

引用

Food Science and Human Wellness 2024年

作者： Xiaoben Liang Yuhong chen Zhijie Zheng Yonghui Zheng Haichong Wu Longyan University & Fujian Provincial Key Laboratory for Prevention and Control of Animal Infectious Diseases and Biotechnology College of Animal Sciences and Veterinary Medicine， Guangxi University Department of Veterinary Medicine， College of Animal Sciences， Zhejiang University

Mastitis often occurs during women’s lactation period， causing great psychological and physical pain to women. Fucoidan， a sulfated polysaccharide obtained from brown algae， has much broader biological properties. However， the roles of fucoidan in lipopolysaccharides (LPS)-induced mastitis are still undiscovered. The present study was aimed to evaluate the influences of fucoidan on LPS-induced mouse mastitis and investigate its possible mechanisms. The expression profiles of fucoidan acting on mastitis were analyzed by Network pharmacology. Additionally， mechanism experiments verified the mechanism of fucoidan on mastitis. The results of in vivo study displayed that the treatment of fucoidan to LPS-stimulated mouse mastitis decreased the inflammatory damage， proinflammatory cytokines level and repaired the completeness of blood-milk barrier. In the study of mouse mammary epithelial cells， fucoidan suppressed the secretion of reactive oxygen species (ROS)and enhanced the activity of antioxidant enzymes. Molecular experiments suggested that fucoidan promoted Nrf2 nuclear import and autophagy via activating the AMPK signaling pathway. The above results indicated that in mastitis， fucoidan promoted Nrf2 nuclear import and autophagy via activating the AMPK signaling pathway， thereby suppressing oxidative stress and inflammatory injury to the mammary glands and protecting the blood-milk barrier.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Plant-based dietary patterns and risk of esophageal cancer:A prospective cohort study spanning 17 years

引用

Chinese Journal of Cancer Research 2024年第1期36卷 36-45页

作者： Xiaorui Zhang Feifan He Jiayue Li Ru chen Xinqing Li Li Li Fen Liu Shaoming Wang Wenqiang Wei Department of Epidemiology and Health Statistics School of Public HealthBeijing Municipal Key Laboratory of Clinical EpidemiologyCapital Medical UniversityBeijing 100069China National Central Cancer Registry office National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Department of Cancer Epidemiology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China

Objective: Plant-based diets have multiple health benefits for cancers;however, little is known about the association between plant-based dietary patterns and esophageal cancer(EC).This study presents an investigation of the prospective associations among three predefined indices of plant-based dietary patterns and the risk of ***: We performed endoscopic screening for 15,709 participants aged 40-69 years from two high-risk areas of China from January 2005 to December 2009 and followed the cohort until December 31, 2022. The overall plant-based diet index(PDI), healthful plant-based diet index(h PDI), and unhealthful plant-based diet index(u PDI), were calculated using survey responses to assess dietary patterns. We applied Cox proportional hazard regression to estimate the multivariable hazard ratios(HRs) and 95% confidence intervals(95% CIs) of EC across 3plant-based diet indices and further stratified the analysis by ***: The final study sample included 15,184 participants in the cohort. During a follow-up of 219,365person-years, 176 patients with EC were identified. When the highest quartile was compared with the lowest quartile, the pooled multivariable-adjusted HR of EC was 0.50(95% CI, 0.32-0.77) for h PDI. In addition, the HR per 10-point increase in the h PDI score was 0.42(95% CI, 0.27-0.66) for ECs. Conversely, u PDI was positively associated with the risk of EC, and the HR was 1.80(95% CI, 1.16-2.82). The HR per 10-point increase in the u PDI score was 1.90(95% CI, 1.26-2.88) for ECs. The associations between these scores and the risk of EC were consistent in most subgroups. These results remained robust in sensitivity ***: A healthy plant-based dietary pattern was associated with a reduced risk of EC. Emphasizing the healthiness and quality of plant-based diets may be important for preventing the development of EC.

关键词： Esophageal cancer diet dietary pattern epidemiology nutrition prospective cohort study

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

Covariance matrix estimation with pipeline structure in array signal processing

引用

The Journal of China Universities of Posts and Telecommunications 2024年

作者： chen Ligang Cai Weijie Liu Zhihui Dong Tao Zeng Hao School of Microelectronics and Communication Engineering， Chongqing University Space Star Technology Company Limited

Estimating the covariance matrix of the received signal is a vital step in array signal processing. The traditional estimation method is completed generally by offline way after receiving the continuous sampling snapshots， which can not meet requirements of real-time performance. In this paper， the calculation of covariance matrix is divided into four pipeline operations， which are multiplication， accumulation， subtraction and division， *** new method leverages the parallel computing function of field programmable gate array(FPGA) to calculate the covariance matrix adopting a pipeline estimation method at each time when the array receives a new sampling snapshot. Compared with the traditional method， the new method not only improves the real-time performance， but also reduces the error in calculation caused by the rapid direction of arrival(DOA) change of the interested signal when the target is highly maneuverable.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

A pathological joint-liver axis mediated by matrikine-activated CD4^(+)T cells

引用

Signal Transduction and Targeted Therapy 2024年第6期9卷 2679-2693页

作者： Junzhi Yi Hui Zhang Fangyuan Bao Zhichu chen Yuliang Zhong Tianning Ye Xuri chen Jingyi Qian Mengya Tian Min Zhu Zhi Peng Zongyou Pan Jianyou Li Zihao Hu Weiliang Shen Jiaqi Xu Xianzhu Zhang Youzhi Cai Mengjie Wu Hua Liu Jing Zhou Hongwei Ouyang Department of Sports Medicine of the Second Affiliated Hospital and Liangzhu LaboratoryZhejiang University School of MedicineHangzhouChina Dr.Li Dak Sum&Yip Yio Chin Center for Stem Cells and Regenerative Medicine Zhejiang University School of MedicineHangzhouChina Stomatology Hospital School of StomatologyZhejiang University School of MedicineZhejiang Provincial Clinical Research Center for Oral DiseasesHangzhouChina The MOE Key Laboratory of Biosystems Homeostasis&Protection The Key Laboratory of Cancer Molecular Cell Biology of Zhejiang ProvinceLife Sciences InstituteZhejiang UniversityHangzhouChina Department of Orthopedics Huzhou Central HospitalAffiliated Huzhou HospitalZhejiang University School of MedicineHuzhouChina China Orthopedic Regenerative Medicine Group(CORMed) HangzhouChina Department of Orthopedics The First Affiliated HospitalZhejiang University School of MedicineHangzhouChina

The knee joint has long been considered a closed *** pathological effects of joint diseases on distant organs have not been ***,our clinical data showed that post-traumatic joint damage,combined with joint bleeding(hemarthrosis),exhibits a worse liver function compared with healthy *** mouse model,hemarthrosis induces both cartilage degeneration and remote liver ***,we found that hemarthrosis induces the upregulation in ratio and differentiation towards Th17 cells of CD4^(+)T cells in peripheral blood and *** of CD4^(+)T cells reverses hemarthrosis-induced liver *** of cartilage matrix induced by hemarthrosis upregulates serological type Ⅱ collagen(COL Ⅱ),which activates CD4^(+)T *** application of a COL Ⅱ antibody blocks the ***,bulk RNAseq and single-cell qPCR analysis revealed that the cartilage Akt pathway is inhibited by blood ***-articular application of Akt activator blocks the cartilage degeneration and thus protects against the liver impairment in mouse and pig *** together,our study revealed a pathological joint-liver axis mediated by matrikine-activated CD4^(+)T cells,which refreshes the organ-crosstalk axis and provides a new treatment target for hemarthrosis-related disease.

关键词： degeneration damage inhibited

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

Emerging progress: photochemical transformation of nitroso compounds

引用

Science China Chemistry 2024年

作者： Ze-Le chen Qiang-Qiang Li Armido Studer Jun Xuan Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials School of Chemistry & Chemical Engineering Anhui University Organisch-Chemisches Institut Universitat Münster

Nitroso compounds have emerged as highly valuable reaction partners or reagents in organic synthesis due to their rich *** versatile profile of these compounds allows them to function as electrophiles, nucleophiles, diradicals, and radical acceptors in diverse transformations. In recent years, notable progress has been made in harnessing photochemical reactions with nitroso compounds to prepare N,O-containing structures using mild and eco-friendly conditions. Various nitroso compounds like nitrosoarenes, acyloxy nitroso compounds, N-nitrosoamines and nitrites have received significant attention for their ability to introduce NO moieties into complex molecules that are otherwise difficult to access. In this review, we provide an overview of the recent advancements in the visible light-induced conversion of nitroso compounds, with particular emphasis on their role as bifunctional reagents and acceptors of radicals, carbenes and nitrenes.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

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：