检索结果-南通市图书馆

Covalently Bonded Ni Sites in Black Phosphorene with Electron Redistribution for Efficient Metal‑Lightweighted Water Electrolysis

引用

Nano-Micro Letters 2024年第6期16卷 233-245页

作者： Wenfang Zhai ya Chen yaoda Liu Yuanyuan Ma Paranthaman Vijayakumar Yuanbin Qin Yongquan Qu Zhengfei Dai State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China School of Chemistry and Chemical Engineering Northwestern Polytechnical UniversityXi’an 710072People’s Republic of China SSN Research Centre SSN College of EngineeringChennaiTamil Nadu 603110India

The metal-lightweighted electrocatalysts for water splitting are highly desired for sustainable and economic hydrogen energy deployments,but *** this work,a low-content Ni-functionalized approach triggers the high capability of black phosphorene(BP)with hydrogen and oxygen evolution reaction(HER/OER)*** a facile in situ electro-exfoliation route,the ionized Ni sites are covalently functionalized in BP nanosheets with electron redistribution and controllable metal *** is found that the as-fabricated Ni-BP electrocatalysts can drive the water splitting with much enhanced HER and OER *** 1.0 M KOH electrolyte,the optimized 1.5 wt%Nifunctionalized BP nanosheets have readily achieved low overpotentials of 136 mV for HER and 230 mV for OER at 10 mA cm^(−2).Moreover,the covalently bonding between Ni and P has also strengthened the catalytic stability of the Ni-functionalized BP electrocatalyst,stably delivering the overall water splitting for 50 h at 20 mA cm^(−2).Theoretical calculations have revealed that Ni–P covalent binding can regulate the electronic structure and optimize the reaction energy barrier to improve the catalytic activity *** work confirms that Ni-functionalized BP is a suitable candidate for electrocatalytic overall water splitting,and provides effective strategies for constructing metal-lightweighted economic electrocatalysts.

关键词： Black phosphorus Water electrolysis Electrocatalyst Electron redistribution Covalent functionalization

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

Copper/Photoredox-Catalyzed Regioselective 1,4-Addition to 1,3-Enynes: A Convenient Access to Perfluoroalkylated Allenes

引用

Chinese Journal of Chemistry 2024年第17期42卷 2023-2028页

作者： ya Chen Quanyuan Wang Keyi Peng Lilei Cheng Ziyi She guo-Jun Deng Key Laboratory for green Organic Synthesis and Application of Hunan Province Key Laboratory of EnvironmentallyFriendly Chemistry andApplication of Ministryof EducationCollege of ChemistryXiangtan UniversityXiangtanHunan 411105China Department School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiangHenan 453007China

A general and broadly applicable copper and photoredox dual-catalyzed multicomponent 1,4-perfluoroalkylcyanation of 1,3-enynes has been *** protocol enjoys success with high regioselectivity,mild reaction conditions,and excellent functional-group tolerance,allowing the facile synthesis of structurally diverse perfluoroalkylated allenes from readily available fluoroalkyl halides,1,3-enynes and TMscN in a one-pot manner.A reasonable mechanism has been proposed according to a series of control experiments.

关键词： Fluorinated allenes 1 3-Enynes Photoredox Fluoroalkylation Multicomponent reactions Difunctionalization Radicals Regioselectivity

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

Advances in memristor based artificial neuron fabrication-materials,models,and applications

引用

International Journal of Extreme Manufacturing 2024年第1期6卷 27-50页

作者： Jingyao Bian Zhiyong Liu Ye Tao Zhongqiang Wang Xiaoning Zhao ya Lin Haiya.g Xu Yichun Liu Key Laboratory for UV Light-Emitting Materials and Technology(Northeast Normal University) Ministry of Education5268 Renmin StreetChangchunPeople’s Republic of China

Spiking neural network(SNN),widely known as the third-generation neural network,has been frequently investigated due to its excellent spatiotemporal information processing capability,high biological plausibility,and low energy consumption *** to the working mechanism of human brain,the SNN system transmits information through the spiking action of ***,artificial neurons are critical building blocks for constructing SNN in *** are drawing growing attention due to low consumption,high speed,and nonlinearity characteristics,which are recently introduced to mimic the functions of biological *** have proposed multifarious memristive materials including organic materials,inorganic materials,or even two-dimensional *** advantage of the unique electrical behavior of these materials,several neuron models are successfully implemented,such as Hodgkin–Huxley model,leaky integrate-and-fire model and integrate-and-fire *** this review,the recent reports of artificial neurons based on memristive devices are *** addition,we highlight the models and applications through combining artificial neuronal devices with sensors or other electronic ***,the future challenges and outlooks of memristor-based artificial neurons are discussed,and the development of hardware implementation of brain-like intelligence system based on SNN is also prospected.

关键词： artificial neuron memristor memristive materials neuron model micro-nano manufacturing spiking neural network

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

Application of Fusobacterium nucleatum as a biomarker in gastrointestinal malignancies

引用

World Journal of gastrointestinal Oncology 2024年第6期16卷 2271-2283页

作者： Long-Chen Yu ya-Ping Li Yue-Ming Xin Mai Mao ya-Xin Pan Yi-Xuan Qu Zheng-Dong Luo Yi Zhang Xin Zhang Department of Clinical Laboratory Qilu Hospital of Shandong UniversityShandong Engineering Research Center of Biomarker and Artificial Intelligence ApplicationJinan 250012Shandong ProvinceChina

The morbidity and mortality of gastrointestinal(gI)malignancies are among the highest in the world,posing a serious threat to human *** of the insidious onset of the cancer,it is difficult for patients to be diagnosed at an early stage,and it rapidly progresses to an advanced stage,resulting in poor treatment and *** nucleatum(***)is a gram-negative,sporefree anaerobic bacterium that primarily colonizes the oral cavity and is implicated in the development of colorectal,esophageal,gastric,and pancreatic cancers via various intricate *** development in novel research suggests that *** may function as a biomarker in gI *** the abundance of *** in stool,saliva,and serum samples of patients may aid in the diagnosis,risk assessment,and prognosis monitoring of gI *** editorial systematically describes the biological roles and mechanisms of *** in gI malignancies focusing on the application of *** as a biomarker in the diagnosis and prognosis of gI malignancies to promote the clinical translation of *** and gI tumors-related research.

关键词： gastrointestinal malignancies Fusobacterium nucleatum Biomarker Diagnosis Prognosis

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

Unlocking the potential:How acupuncture reshapes the liver-centered lipid metabolism pattern to fight obesity

引用

Journal of Integrative Medicine 2024年第5期22卷 523-532页

作者： Shu-rui ya.g Li Chen Dan Luo ya-yuan Wang Feng-xia Liang College of Acupuncture and Orthopedics Hubei University of Chinese MedicineWuhan 430061Hubei ProvinceChina Hubei Provincial Collaborative Innovation Center of Preventive Treatment by Acupuncture and Moxibustion Wuhan 430061Hubei ProvinceChina Hubei Shizhen Laboratory Wuhan 430060Hubei ProvinceChina Hubei International Science and Technology Cooperation Base of Preventive Treatment by Acupuncture and Moxibustion Wuhan 430061Hubei ProvinceChina Acupuncture and Moxibustion Department Affiliated Hospital of Hubei University of Chinese Medicine(Hubei Provincial Hospital of Traditional Chinese Medicine)Wuhan 430060Hubei ProvinceChina

Obesity,a widespread global health issue,is frequently linked to disrupted lipid metabolism,resulting in excessive accumulation of adipose tissue and associated health ***,a traditional Chinese medical modality,has exhibited potential as a viable intervention for addressing *** underlying mechanism proposed involves the stimulation of specific acupoints to exert a regulatory influence on hepatic *** liver has a central role in lipid metabolism,including processes such as lipid synthesis,storage and *** is believed to enhance the liver’s efficiency in processing lipids,thereby reducing lipid accumulation and improving metabolic *** indicates that acupuncture can influence the expression of certain genes and proteins involved in lipid metabolism in the *** includes upregulating genes that promote lipid breakdown and oxidation,and downregulating those involved in lipid ***,acupuncture has been shown to improve insulin sensitivity,which is crucial for the regulation of lipid ***,the potential anti-inflammatory effects of acupuncture may play a significant role in its efficacy for the treatment of *** presence of chronic inflammation has been strongly associated with metabolic disorders such as *** its ability to mitigate inflammation,acupuncture can potentially aid in the restoration of lipid metabolism and the reduction of body ***,the amelioration of hepatic oxidative stress represents another mechanism by which acupuncture may contribute to the reduction of lipid ***,the liver,being the primary site of lipid metabolism,maintains communication with various organs including the brain,adipose tissue,skeletal muscle and *** perspective opens new avenues for the treatment of obesity,emphasizing the importance of holistic approaches in managing complex metabolic disorders.

关键词： Acupuncture Obesity Liver-centered lipid metabolism pattern

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

Clinical value of precise rehabilitation nursing in management of cerebral infarction

引用

World Journal of Clinical Cases 2024年第1期12卷 24-31页

作者： ya-Na Xu Xiu-Zhen Wang Xiao-Rong Zhang Department of Neurology Wuhan Fourth HospitalWuhan 430030Hubei ProvinceChina Department of Neurosurgery The First People's Hospital of Jiangxia DistrictWuhan City(Union Jiangnan Hospital of Huazhong University of Science and Technology)Wuhan 430200Hubei ProvinceChina

BACKgROUND Cerebral infarction,previously referred to as cerebral infarction or ischemic stroke,refers to the localized brain tissue experiencing ischemic necrosis or softening due to disorders in brain blood supply,ischemia,and *** precision rehabilitation nursing model for chronic disease management is a continuous,fixed,orderly,and efficient nursing model aimed at standardizing the clinical nursing process,reducing the wastage of medical resources,and improving the quality of medical *** To analyze the value of a precise rehabilitation nursing model for chronic disease management in patients with cerebral *** Patients(n=124)admitted to our hospital with cerebral infarction between November 2019 and November 2021 were enrolled as the study *** random number table method was used to divide them into a conventional nursing intervention group(n=61)and a model nursing intervention group(n=63).Changes in the nursing index for the two groups were compared after conventional nursing intervention and precise rehabilitation intervention nursing for chronic disease *** Compared with the conventional intervention group,the model intervention group had a shorter time to clinical symptom relief(Pgher disease knowledge mastery rate,higher safety and quality,and a higher overall nursing satisfaction rate(Pg model for chronic disease management improves the clinical symptoms of patients with cerebral infarction,reducing the incidence of total complications and improving the clinical outcome of patients,and is worthy of application in clinical practice.

关键词： Precise rehabilitation nursing model for chronic disease management Cerebral infarction Knowledge of disease Safety and quality

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

Low-molecular-weight heparin and preeclampsia—does the sword cut both ways?Three case reports and review of literature

引用

World Journal of Clinical Cases 2024年第9期12卷 1634-1643页

作者： Dan Shan Tao Li Xi Tan ya-Yi Hu Department of Obstetrics and gynecology West China Second University HospitalSichuan UniversityChengdu 610000Sichuan ProvinceChina Key Laboratory of Birth Defects and Related Diseases of Women and Children Sichuan UniversityMinistry of EducationChengdu 610000SichuanChina

BACKgROUND Low-molecular-weight heparins(LMWH)are the most commonly used anticoagulants during *** is considered to be the drug of choice due to its safety in not crossing *** the beneficial effect in the improvement of microcirculation,prophylactic application of LMWH in patients with preeclampsia became a ***,the bleeding risk related with LMWH in preeclampsia patients has seldomly been *** current study aimed to identify the potential risks regarding LMWH application in patients with *** SUMMARY Herein we present a case series of three pregnant women diagnosed with preeclampsia on LMWH therapy during *** the cases experienced catastrophic hemorrhagic *** reviewing the twenty-one meta-analyses,the bleeding risk related with LMWH seems *** one study analyzed the bleeding risk of LMWH and found a significantly higher risk of developing PPH in women receiving *** studies reported minor bleeding risks,none of these were serious enough to stop LMWH *** of bleeding either from uterus or from intrabdominal organs in preeclampsia patients on LMWH therapy should not be *** management of blood pressure even after delivery and homeostasis suture in surgery are *** Consideration should be given to the balance between benefits and risks of LMWH in patients with preeclampsia.

关键词： Pregnancy Preeclampsia Low-molecular-weight heparin Hemorrhage 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

Trade-off analyses between food provision and soil conservation service of grain for green Program in Mountainous Area

引用

International Soil and Water Conservation Research 2024年第1期12卷 43-53页

作者： yawen Li Yuxiang Li Xingwu Duan Zhongyin Cai ya Li Baiyun He Long Yin Institute of International River and Eco-security Yunnan UniversityKunming650091PR China Yunnan Key Laboratory of International Rivers and Trans-boundary Eco-security Kunming650091PR China State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing100085PR China University of Chinese Academy of Sciences Beijing100049PR China

The grain for green Program and soil and water conservation engineering initiatives are crucial for controlling erosion in steep-slope ***,it is still unclear how these two management methods should be carried out in respect to the situation in mountainous ***,taking a typical mountainous area in southwest China as an example,we simulated six scenarios in order to compare the food provisioning service(FPS)and soil conservation service of the grain for green Program(converting to grassland)and Construction Measures(converting to sloping terrace)under different *** showed that when farmland with a>25°slope was converted into grassland,the amount of soil erosion(M)decreased by 21.0%,while FPS decreased by only 0.7%.However,when farmland with a>25°slope was converted into sloping terrace,M decreased by 31.3%while FPS increased by 18.7%.With the increases of farmland slope ranges in the Construction Measures scenario,M gradually decreased and FPS gradually *** when farmland>15°was converted into sloping terrace,M decreased by 63.9%and FPS increased by 52.7%.Furthermore,the trade-offs of Construction Measures are lower than that of grain for green on different slope ***,we conclude that Construction Measures are a more suitable method in mountainous areas than the grain for green,and we suggest that further research be conducted to consider the ecological risks of construction engineering measures.

关键词： Soil erosion grain for green Construction measures Mountainous areas

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

Rim^(18)F-fluorodeoxyglucose uptake of hepatic cavernous hemangioma on positron emission tomography/computed tomography:A case report

引用

World Journal of Clinical Cases 2024年第13期12卷 2243-2247页

作者： Yong-An Hu ya-Xin guo Qi-Feng Huang Department of Nuclear Medicine Jinhua Hospital of Zhejiang UniversityJinhua Municipal Central HospitalJinhua 321000Zhejiang ProvinceChina

BACKgROUND Peripheral FDg accumulation in a hepatic hemangioma presenting in a patient with prolonged fever is ***,clinicians should pay close attention to patients with hepatic *** SUMMARY A 54-year-old woman with a 4-wk history of daily fevers was admitted to our hospital.A whole body^(18)-Fluordesoxyglucose(PET-FDg)positron emission tomography/computed tomography(PET/CT)was performed to elucidate the source of the ***,whole body^(18)-FDg PET/CT raised the suspicion of a malignant lesion because of peripheral FDg accumulation(SUVmax 3.5 g/mL)higher than that of the normal liver parenchyma(SUVmax 1.6 g/mL)surrounding a hypoactive area,and no other abnormalities were ***,the patient underwent liver mass *** showed a hepatic cavernous hemangioma with fatty infiltration around the *** fever disappeared four days after surgery and the patient did not present any complications during *** Fatty infiltration in the peripheral parts of hepatic cavernous hemangioma may lead to subacute inflammation which further activate the Kupffer *** may cause prolonged fever and peripheral rim FDg accumulation on PET/CT.

关键词： ^(18)-Fluordesoxyglucose positron emission tomography/computed tomography Hepatocellular carcinoma Fever Fatty infiltration 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

Drivers of spatial structure in thinned forests

引用

Forest Ecosystems 2024年第2期11卷 202-213页

作者： Zichun Wang yaoxiang Li guangyu Wang Zheyu Zhang ya Chen Xiaoli Liu Rundong Peng College of Mechanical and Electrical Engineering Northeast Forestry UniversityHarbin150040China Department of Forest Resources Management University of British ColumbiaVancouverCanada

Background:As is widely known,an increasing number of forest areas were managed to preserve and enhance the health of forest ***,previous research on forest management has often overlooked the importance of ***:Our objectives were to define the direction of structure-based forest ***,we investigated the relationships between forest structure and the regeneration,growth,and mortality of trees under different thinning ***,the drivers of forest structural change were ***:On the basis of 92 sites selected from northeastern China,with different recovery time (from 1 to 15years) and different thinning intensities (0–59.9%) since the last *** component analysis (PCA)identified relationships among factors determining forest spatial *** structural equation model (SEM)was used to analyze the driving factors behind the changes in forest spatial structure after ***:Light thinning (0–20%trees removed) promoted forest regeneration,and heavy thinning (over 35% of trees removed) facilitated forest ***,only moderate thinning (20%–35%trees removed) created a reasonable spatial *** dead trees were clustered,and they were hardly affected by thinning ***,thinning intensity,recovery time,and altitude indirectly improve the spatial structure of the forest by influencing diameter at breast height (DBH) and canopy ***:Creating larger DBH and canopy area through thinning will promote the formation of complex forest structures,which cultivates healthy and stable forests.

关键词： Thinning Natural secondary forest Spatial structure Dynamic changes growth factors Structural equation modeling

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：