检索结果-南通市图书馆

Regulating Thermogalvanic Effect and Mechanical Robustness via Redox Ions for Flexible Quasi‑Solid‑State Thermocells

引用

Nano-Micro Letters 2022年第5期14卷 153-167页

作者： Peng Peng Jiaqian Zhou Lirong Liang Xuan Huang Haicai Lv Zhuoxin Liu Guangming Chen College of Materials Science and Engineering Shenzhen UniversityShenzhen 518055People’s Republic of China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060People’s Republic of China

The design of power supply systems for wearable applications requires both flexibility and durability.Thermoelectrochemical cells(TECs)with large Seebeck coefficient can efficiently convert lowgrade heat into electricity,thus having attracted considerable attention in recent years.Utilizing hydrogel electrolyte essentially addresses the electrolyte leakage and complicated packaging issues existing in conventional liquid-based TECs,which well satisfies the need for flexibility.Whereas,the concern of mechanical robustness to ensure stable energy output remains yet to be addressed.Herein,a flexible quasisolid-state TEC is proposed based on the rational design of a hydrogel electrolyte,of which the thermogalvanic effect and mechanical robustness are simultaneously regulated via the multivalent ions of a redox couple.The introduced redox ions not only endow the hydrogel with excellent heat-to-electricity conversion capability,but also act as ionic crosslinks to afford a dual-crosslinked structure,resulting in reversible bonds for effective energy dissipation.The optimized TEC exhibits a high Seebeck coefficient of 1.43 mV K−1 and a significantly improved fracture toughness of 3555 J m^(−2),thereby can maintain a stable thermoelectrochemical performance against various harsh mechanical stimuli.This study reveals the high potential of the quasi-solid-state TEC as a flexible and durable energy supply system for wearable applications.

关键词： Thermocells Thermoelectric Flexible energy devices Wearable applications Hydrogel electrolytes

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

Flexible nanocomposite electrodes with optimized hybrid structure for improved low-grade heat harvest via thermocells

引用

Science China Chemistry 2023年第6期66卷 1814-1823页

作者： Ziwei Mo Jiaqian Zhou Xin Lu Lirong Liang Fusheng Liu Zhuoxin Liu Guangming Chen College of Materials Science and Engineering Shenzhen UniversityShenzhen 518055China State Key Laboratory of Polymer Materials Engineering Sichuan UniversityChengdu 610065China

Thermal energy is ubiquitous and constantly generated in nature and society.Thermocells(TECs)represent a promising energyconversion technology that can directly translate thermal energy into electricity with a large thermopower,thus having attracted considerable attention in recent years.Nevertheless,the use of noble platinum electrodes in TECs has substantially limited their widespread applications,as the scarcity of platinum element increases the cost of materials,and its intrinsic rigidity is not conducive to flexible and wearable applications under heat sources with complex surface geometry.Herein,we propose a facile hybridizing route to constructing flexible electrodes with optimized nanostructures.The flexible composite electrode is fabricated by decorating a single-walled carbon nanotube network with conducting polypyrrole nanospheres through controlled electrochemical deposition.With refined interfacial nanostructures,the resultant composite film can facilitate carrier transport/transfer at the electrolyte-electrode interface,and thereby shows superior overall thermoelectrochemical performance to noble platinum electrode.The TEC employing the flexible composite electrodes yields a maximum output power of 2.555μW under the temperature difference of 30 K,and a device comprising 6 TEC units is assembled to efficiently utilize waste heat and human body heat,revealing the high potential of low-grade heat harvesting.

关键词： nanocomposites thermocells carbon nanotubes polymers

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

Swift Assembly of Adaptive Thermocell Arrays for Device‑Level Healable and Energy‑Autonomous Motion Sensors

引用

纳微快报:英文版 2023年第11期15卷 104-118页

作者： Xin Lu Daibin Xie Kaihua Zhu Shouhao Wei Ziwei Mo Chunyu Du Lirong Liang Guangming Chen Zhuoxin Liu College of Materials Science and Engineering Shenzhen UniversityShenzhen 518055People’s Republic of China State Key Laboratory of Polymer Materials Engineering Sichuan UniversityChengdu 610065People’s Republic of China

The evolution of wearable technology has prompted the need for adaptive,self-healable,and energy-autonomous energy devices.This study innovatively addresses this challenge by introducing an MXene-boosted hydrogel electrolyte,which expedites the assembly process of flexible thermocell(TEC)arrays and thus circumvents the complicated fabrication of typical wearable electronics.Our findings underscore the hydrogel electrolyte’s superior thermoelectrochemical performance under substantial deformations and repeated self-healing cycles.The resulting hydrogel-based TEC yields a maximum power output of 1032.1 nW under theΔT of 20 K when being stretched to 500%for 1000 cycles,corresponding to 80%of its initial state;meanwhile,it sustains 1179.1 nW under theΔT of 20 K even after 60 cuthealing cycles,approximately 92%of its initial state.The as-assembled TEC array exhibits device-level self-healing capability and high adaptability to human body.It is readily applied for touch-based encrypted communication where distinct voltage signals can be converted into alphabet letters;it is also employed as a self-powered sensor to in-situ monitor a variety of body motions for complex human actions.The swift assembly approach,combined with the versatile functionality of the TEC device,paves the way for future advancements in wearable electronics targeting at fitness monitoring and human–machine interfaces.

关键词： Thermocells Flexible devices Wearable applications Low-grade heat harvest MXenes

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

The Q181X Point Mutation in Nf1 Induces Cerebral Vessel Stenosis

引用

Neuroscience Bulletin 2023年第5期39卷 813-816页

作者： Chensi liang lirong Huo Yan Zhu Zhichao Yao Xiaolong Wu Jiantao liang Central Laboratory Department of NeurologyFuxing HospitalCapital Medical UniversityBeijing 100038China Neurosurgery of Xuanwu Hospital Capital Medical UniversityBeijing 100053China

Dear Editor,Ischemic stroke is characterized by high morbidity and disability,seriously endangering human health.The cause and genetic background of cerebrovascular stenosis,which directly lead to stroke,are not fully understood yet[1].Therefore,it is diffcult to accurately predict the development of stroke and carry out the corresponding prevention and treatment.NF1(neurofibromatosis type 1)is one of the most common autosomal dominant genetic diseases,caused by mutations in the Nfl gene with an incidence rate of~1/3000 and there are no ethnic or sex differences in the incidence[2].More than 8%of NF1 patients will have hypertension,arterial stenosis,aortic aneurysm,or moyamoya disease[3].

关键词： prevention stenosis diseases

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

Effectiveness and Acceptability of a Comprehensive Mobile Health-Based Modality for Smoking Cessation-Beijing Municipality,China,2022

引用

China CDC weekly 2023年第21期5卷 464-468页

作者： Shuilian Chu Hang Jing Di Zhang Yuan Cao Yunliang Qian Xiurong Liu Lin Xiao Zhaohui Tong Lirong Liang Department of Research on Tobacco Dependence Therapies Beijing Institute of Respiratory Medicine and Beijing Chao-Yang HospitalCapital Medical UniversityBeijingChina Beijing Center for Disease Prevention and Control BeijingChina Tobacco Control Office Chinese Center for Disease Control and PreventionBeijingChina Department of Respiratory and Critical Care Medicine Beijing Institute of Respiratory Medicine and Beijing Chao-Yang HospitalCapital Medical UniversityBeijingChina

Summary What is already known on this topic?Mobile health interventions have been demonstrated to be effective in aiding smoking cessation among smokers.Nevertheless,research on this topic remains limited in China.What is added by this report?Following two months of utilizing the services of a comprehensive mobile health(mHealth)-based modality(“Way to Quit”modality)which integrated three online interventions through the WeChat application,29.1%of participating smokers successfully quit smoking.Participants who used a greater number of online services were more likely to cease smoking.All services were scored highly for satisfaction among smokers.What are the implications for public health practice?This study presents a practical and feasible method to assist Chinese smokers in quitting smoking.The results of this research suggest a promising direction for enhancing the accessibility and utilization of smoking cessation services.Additionally,these findings serve as a critical reference for addressing the obstacles faced by smoking cessation services in China.

关键词： smoke services utilizing

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

Self-assembled aerogel sheet electrodes of thermocells for low-grade heat harvest

引用

Science China Chemistry 2024年第5期67卷 1672-1679页

作者： Ziwei Mo Shouhao Wei Daibin Xie Kaihua Zhu Hongxiong Li Xin Lu Lirong Liang Chunyu Du Zhuoxin Liu Guangming Chen College of Materials Science and Engineering Shenzhen UniversityShenzhen 518055China State Key Laboratory of Polymer Materials Engineering Sichuan UniversityChengdu 610065China

Efficiently harvesting low-grade heat is crucial for sustainable energy management. Thermocells(TECs), inducing heat-toelectricity conversion via the thermogalvanic effect, have thus drawn tremendous attention in recent years. This study introduces a self-assembly approach for fabricating aerogel sheet electrodes(ASEs) tailored for TECs. The crafted ASEs retain a remarkable porous architecture with approximately 95% porosity, even with their slimmed-down thickness. Results reveal that the electrode composition has minimal influence on the thermopower of TECs. Notably, the porous ASE with tunned composition demonstrates an optimal effective surface area for the thermogalvanic effect, resulting in enhanced output current density. This balances the desirable traits of electrode compactness with abundant redox active sites, positioning it favorably against conventional bulky electrode designs. The TECs utilizing the optimized ASE achieve a peak output power of 22.10 μW cm^(-2)under a temperature difference of 30 K. Furthermore, a tubular TEC device is readily assembled and specially designed for harvesting heat energy from hot fluids. These findings underscore the potential of composite electrodes in the realm of low-grade heat harvest, paving the way for broader applications in sustainable energy solutions.

关键词： thermocells low-grade heat harvest energy conversion composite electrodes

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

Harness High-Temperature Thermal Energy via Elastic Thermoelectric Aerogels

引用

NANO-MICRO LETTERS 2024年第1期16卷 1-15页

作者： Li, Hongxiong Ding, Zhaofu Zhou, Quan Chen, Jun Liu, Zhuoxin Du, Chunyu liang, lirong Chen, Guangming Shenzhen Univ Coll Mat Sci & Engn Shenzhen 518055 Peoples R China Univ Calif Los Angeles Dept Bioengn Los Angeles CA 90095 USA

A thermoelectric aerogel of highly elastic, flame-retardant and high-temperature-resistant PEDOT:PSS/SWCNT composite is fabricated.The assembled thermoelectric generator generates a maximum output power of 400 mu W at a temperature difference of 300 K.The self-powered wearable sensing glove can achieve wide-range temperature detection, complex hand motion recognition and high-temperature warning.The intelligent fire warning system enables highly sensitive and repeatable monitoring and alarm capabilities for high-temperature fire sources. Despite notable progress in thermoelectric (TE) materials and devices, developing TE aerogels with high-temperature resistance, superior TE performance and excellent elasticity to enable self-powered high-temperature monitoring/warning in industrial and wearable applications remains a great challenge. Herein, a highly elastic, flame-retardant and high-temperature-resistant TE aerogel, made of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/single-walled carbon nanotube (PEDOT:PSS/SWCNT) composites, has been fabricated, displaying attractive compression-induced power factor enhancement. The as-fabricated sensors with the aerogel can achieve accurately pressure stimuli detection and wide temperature range monitoring. Subsequently, a flexible TE generator is assembled, consisting of 25 aerogels connected in series, capable of delivering a maximum output power of 400 mu W when subjected to a temperature difference of 300 K. This demonstrates its outstanding high-temperature heat harvesting capability and promising application prospects for real-time temperature monitoring on industrial high-temperature pipelines. Moreover, the designed self-powered wearable sensing glove can realize precise wide-range temperature detection, high-temperature warning and accurate recognition of human hand gestures. The aerogel-based intelligent wearable sensing system developed for firefighters demonstrates the desired self-powered and highly sensitive high-temperature fire warning capability.

关键词： Thermoelectrics Aerogel Self-powered High-temperature monitoring High-temperature warning PERFORMANCE COMPOSITES PRESSURE SENSORS

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

Determinants of health-related quality of life worsening in patients with chronic obstructive pulmonary disease at one year

引用

Chinese Medical Journal 2014年第1期127卷 4-10页

作者： liang lirong Lin Yingxiang Yang Ting Zhang Hong Li Jie Wang Chen Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders Beijing Chao-Yang Hospital Capital Medical University Beijing100020 China Beijing Institute of Respiratory Medicine Department of Respiratory and Critical Care MedicineBeijing Chao-Yang Hospital Capital Medical University Beijing100020 China Beijing Hospital of the Ministry of Health Beijing 100730 China

Background Chronic obstructive pulmonary disease （COPD） is a major cause of morbidity and mortality worldwide and has been the leading cause of death in China.Patients with COPD have significant decrements in their health-related quality of life （HRQL）.It is necessary to identify the factors involved in worsening HRQL in order to improve the HRQL of COPD patients.However,evidence from longitudinal studies is limited.The aim of the study was to evaluate the determinants of the deterioration of HRQL in patients with COPD.Methods At baseline,a total of 491 patients with stable COPD received comprehensive assessments,including psychosocial and clinical variables,six minutes walk distance （6MWD）,dyspnea grade measured by the 5-grade Medical Research Council （MRC） dyspnea scale,anxiety and depression measured by the hospital anxiety and depression scale and HRQL measured by St.George＇s Respiratory Questionnaire （SGRQ）.Patients were then monitored monthly for 12 months to document COPD exacerbations.At the end of the study period,the SGRQ values were reassessed.A 1-year change in SGRQ total score ≥4 was defined as a deterioration of the HRQL and as the outcome.A total of 450 patients completed the 12-month follow-up and were analyzed in the present study.Results The age （mean±SD） was （65.0±10.6） years and 68.7％ of subjects were men.The deterioration of the HRQL was 26.4％.In multivariate Logistic regression,independent and graded associations were found between the baseline MRC dyspnoea grade and the deterioration of HRQL （P=0.012）,OR 3.03 （95％ CI 1.11-8.24） for patients with MRC dyspnoea grade ≥4 versus patients with MRC dyspnoea grade =1.Similarly,the number of exacerbations during the follow-up was independently and gradually increased with the deterioration of HRQL （P ＜0.001）,OR 3.03 （95％ CI 1.9-5.6） for the participants with exacerbations ≥3 versus participants with no exacerbation.The 6MWD evaluated by quartiles was negatively associated with the deterioration of HRQL with borderline statistical significance.Conclu

关键词： chronic obstructive pulmonary disease health-related quality of life risk factors exacerbation dyspnea

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

An Imported Case of BA.2 Lineage of Omicron Variant COVID-19—Guangdong Province,China,December 28,2021

引用

China CDC weekly 2022年第5期4卷 98-99页

作者： Qianfang Guo Ruhan A Lijun liang Xiang Zhao Aiping Deng Yao Hu Zhonghua Zheng lirong Zou Cao Chen Baisheng Li Guangdong Provincial Center for Disease Control and Prevention GuangzhouGuangdongChina National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijingChina

On December 19,2021,a 31-year-old male boarded a flight from Bhubaneswar,India to Mumbai,India,and then another flight from Mumbai to Muscat,Oman.On December 24,he returned from Muscat to Guangzhou by airplane and was transferred to a centralized isolation hotel in Foshan.He was sampled on the third day of the quarantine,and the result returned to be coronavirus disease 2019(COVID-19)positive on December 27,2021.He was transported to the Guangzhou Eighth People’s Hospital for isolated treatment by negative pressure ambulance on the same day.The case had two lungs focal inflamed according to the chest CT examination.

关键词： transferred Guangzhou India

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

First Human Infection with Avian Influenza H9N2—Guangdong Province,China,2020

引用

China CDC weekly 2020年第29期2卷 545-548页

作者： Qianfang Guo lirong Zou Jianxiang Yu Yingchao Song Lijun liang Xue Zhuang Tie Song Jie Wu Guangdong Provincial Center of Disease Control and Prevention GuangzhouGuangdongChina Southern Medical University School of Public HealthGuangzhouGuangdongChina

A case of avian influenza H9N2 was detected in a human in Zhuhai City,Guangdong Province through routine influenza surveillance on March 30,2020.The patient was a 3-year-old child who developed fever and cough on March 22.A pharyngeal swab was collected on March 23,and the novel coronavirus nucleic acid test was negative.On March 26,the pharyngeal swab was sent to Zhuhai CDC for influenza virus tests and was found to be H9 influenza A positive,and on March 30,Guangdong Provincial CDC reexamined the pharyngeal swabs as positive for influenza A(H9N2).

关键词： Guangdong routine Province,China

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

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：