检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

基于NB-IoT的远程水质监测系统

智能城市 2024年第1期10卷 99-101页

作者：付佳怡王世鑫杨林波严超群赖清华河北建筑工程学院河北张家口075000

为满足水质监测的基本需求,文章提出了基于NB-IoT的远程水质监测系统,针对远距离监测水质安全的实现方法进行了研究,研究人员需要掌握DS18B20温度识别、浊度传感器、TCS230识别颜色等模块功能,通过对监测到的数据的对比研究,可得出水体... 详细信息

为满足水质监测的基本需求,文章提出了基于NB-IoT的远程水质监测系统,针对远距离监测水质安全的实现方法进行了研究,研究人员需要掌握DS18B20温度识别、浊度传感器、TCS230识别颜色等模块功能,通过对监测到的数据的对比研究,可得出水体污染的不同程度,采取有效措施对水体进行生态保护。该方法能够提高信息的采集效率,增强远程水质监测系统的实时性和准确性。

关键词： TCS230颜色识别浊度传感器 DS18B20温度识别远程水质监测

维普期刊数据库博看期刊

Significant effect of ordered micro-domain on cell boundary phase distribution and demagnetization curve squareness of Sm_(2)Co_(17)-type magnet

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第4期43卷 1724-1735页

作者： Zhuang Liu Hai-Chen Wu chao-Yue Zhang chao-qun Zhu Guo-Xin Chen Huan-Ming Lu Ren-Jie Chen Aru yan CISRI&NIMTE Joint Innovation Center for Rare Earth Permanent Magnets Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201China University of Chinese Academy of Sciences Beijing100049China Analytical Center Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo315201China

Cu-rich cell boundary phase is difficult to precipitate evenly,resulting in a generally poor demagnetization curve squareness for Fe-rich Sm_(2)Co_(17)-type magnet,which is a key factor limiting the further improvement of magnetic energy *** this study,we report that nanoscale strip-like ordered micro-domains distributed in1:7H disordered matrix phase of the solid solution precursor is a new factor significantly affecting the precipitation and distribution of the cell boundary *** strip-like and continuous micro-twin structure with twin boundaries neatly perpendicular to the C-axis is observed after sintering *** solution treatment,sequential and long strip-like micro-twins gradually transform into disordered state along the basal plane,forming narrow disordered 1:7H(TbCu_(7)-type structure)phase between the separated strip-like ordered *** disordering transformation takes place via broken down of the long strip-like ordered micro-domains,which is accomplished by narrowing along the width direction followed by reduction of the ***,a new model revealing the effect of the ordered micro-domains on the formation of the cell boundary phase is *** boundaries enriched in Cu have already existed in the precursor with long strip-like ordered ***,the Cu-rich cell boundary phase acting as strong pinning centers cannot be precipitated homogeneously and distributed continuously after aging,resulting in a poor demagnetization curve squareness of Sm_(2)Co_(17)-type *** results indicate that significant broken down of the nanoscale ordered micro-domains in solution precursor is the key factor improving the distribution of cell boundary phase in Sm_(2)Co_(17)-type magnets.

关键词： Sm_(2)Co_(17) magnets Solution precursor Ordered micro-domains Disordering transformation Cellular structure

Global research trends and prospects of cellular metabolism in colorectal cancer

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Oncology 2024年第2期16卷 527-542页

作者： yan-Chen Liu Zhi-Cheng Gong chao-qun Li Peng Teng yan-yan Chen Zhao-Hui Huang Wuxi Cancer Institute Affiliated Hospital of Jiangnan UniversityWuxi 214122Jiangsu ProvinceChina Wuxi School of Medicine Jiangnan UniversityWuxi 214122Jiangsu ProvinceChina Wuxi Institute of Integrated Chinese and Western Medicine Affiliated Hospital of Jiangnan UniversityWuxi 214062Jiangsu ProvinceChina

BACKGROUND An increasing number of studies have focused on the role of cellular metabolism in the development of colorectal cancer(CRC).However,no work is currently available to synthesize the field through *** To analyze the development in the field of“glucose metabolism”(GM),“amino acid metabolism”(AM),“lipid metabolism”(LM),and“nucleotide metabolism”(NM)in CRC by *** Articles within the abovementioned areas of GM,AM,LM and NM in CRC,which were published from January 1,1991,to December 31,2022,are retrieved from the Web of Science Core Collection and analyzed by CiteSpace 6.2.R4 and VOSviewer *** The field of LM in CRC presented the largest number of annual publications and the fastest increase in the last decade compared with the other three ***,China and the United States were two of the most prominent contri-butors in these four *** addition,Gang Wang,Wei Jia,Maria Notar-nicola,and Cornelia Ulrich ranked first in publication numbers,while Jing-Yuan Fang,Senji Hirasawa,Wei Jia,and Charles Fuchs were the most cited authors on average in these four fields,respectively.“Gut microbiota”and“epithelial-mesenchymal transition”emerged as the newest burst words in GM,“gut microbiota”was the latest outburst word in AM,“metastasis”,“tumor microenvironment”,“fatty acid metabolism”,and“metabolic reprogramming”were the up-to-date outbreaking words in LM,while“epithelial-mesenchymal transition”and“apoptosis”were the most recently occurring words in *** Research in“cellular metabolism in CRC”is all the rage at the moment,and researchers are particularly interested in exploring the mechanism to explain the metabolic alterations in *** metabolic vulnerability appears to be a promising direction in CRC therapy.

关键词： Cellular metabolism Colorectal cancer Glucose metabolism Amino acid metabolism Lipid metabolism Nucleotide metabolism

Lung adenocarcinoma with initial binocular symptoms

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

International Journal of Ophthalmology(English edition) 2024年第5期17卷 982-984页

作者： Xiao-Lan Zhao yan-Qing Jiang Zhen yang chao-qun Liu Xiao-Li yang Department of Ophthalmology Affiliated Hospital of North Sichuan Medical CollegeNanchong 637000Sichuan ProvinceChina Department of Ophthalmology North Sichuan Medical CollegeNanchong 637000Sichuan ProvinceChina

Dear Editor,Lung adenocarcinoma with choroidal metastasis is a common form of cancer,with breast cancer accounting for 40%-53%and lung cancer accounting for 20%-29%of primary cases with choroidal metastases[1].This type of metastatic cancer typically affects people aged 40-70y,and is more prevalent in women than men[1].Ocular symptoms,including vision loss,can be an early indication of the disease,as many tumors are asymptomatic in their early *** have shown that 40.3%of cases involve the macular region,which explains why ocular symptoms are often the first manifestation of the disease[2].When choroidal metastasis is suspected in patients without a history of cancer,a combination of diagnostic tools should be used to identify the primary source of the *** tumors can serve as an indication of future lung cancer diagnosis in some patients with lung cancer[1].In this report,we present a case of bilateral lung adenocarcinoma where ocular symptoms were the first indication of the disease.

关键词： Lung symptoms adenocarcinoma

Procyanidin A_1 and its digestive products alleviate acrylamide-induced IPEC-J2 cell damage through regulating Keap1/Nrf2 pathway

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

Food Science and Human Wellness 2024年第3期13卷 1475-1484页

作者： Fangfang yan qun Lu Chengming Wang Rui Liu College of Food Science and Technology Huazhong Agricultural UniversityWuhan 430070China Key Laboratory of Environment Correlative Dietology(Huazhong Agricultural University) Ministry of EducationWuhan 430070China Key Laboratory of Urban Agriculture in Central China Ministry of Agriculture and Rural AffairsWuhan 430070China

Our previous study has revealed that procyanidin A_(1)(A_(1))and its simulated digestive product(D-A,)can alleviate acrylamide(ACR)-induced intestine cell ***,the underlying mechanism remains *** this study,we elucidated the molecular mechanism for and D-A_(1) to alleviate ACR-stimulated IPEC-J2 cell *** slightly activated nuclear factor erythroid 2-related factor 2(Nrf2)signaling and its target genes,but this activation could not reduce intestine cell damage.A_(1) and D-A_(1) could alleviate ACR-induced cell damage,but the effect was abrogated in cells transiently transfected with Nrf2 small interfering RNA(siRNA).Further investigation confirmed that A_(1) and D-A_(1) interacted with Ketch-like ECH-associated protein 1(Keapl),which boosted the stabilization of Nrf2,subsequently promoted the translocation of Nrf2 into the nucleus,and further increased the expression of antioxidant proteins,thereby inhibiting glutathione(GSH)consumption,maintaining redox balance and eventually alleviating ACR-induced cell ***,there was no difference between A_(1) and D-A_(1) treated groups,indicating that A_(1) can tolerate gastrointestinal digestion and may be a potential compound to limit the toxicity of ACR.

关键词： Procyanidin A_1 Digestive products Acrylamide Nuclear factor erythroid 2-related factor 2(Nrf2) Intestinal cell damage

Freestanding MoSe_(2)nanoflowers for superior Li/Na storage properties

在线全文

学校读者我要写书评

暂无评论

Tungsten 2024年第1期6卷 238-247页

作者： Qiao Cu chao-qun Shang Guo-Fu Zhou Xin Wang Guangdong Provincial Key Laboratory of Optical Information Materials South China Normal UniversityGuangzhou 510006China School of Materials Science and Engineering and Hubei Key Laboratory of Plasma Chemistry and Advanced Materials Wuhan Institute of TechnologyWuhan 430205China International Academy of Optoelectronics at Zhaoqing South China Normal UniversityZhaoqing 526060China

MoSe_(2),with high theoretical specific capacity,has attracted a lot of *** remains an open challenge to effectively suppress the irreversible selenium dissolution and rapid capacity decrease induced by severe volume change during ***,we synthesize MoSe_(2)nanoflowers dispersed on one-dimensional(1D)N-doped carbon nanofibers(MoSe_(2)@NCNFs)for use as a freestanding *** this unique structure,the 1D N-doped carbon nanofibers are found to not only enhance the conductivity but also ensure the structural integrity during the Li^(+)/Na^(+)insertion/destraction *** expected,at 2 A·g^(-1),the specific capacity of the MoSe_(2)@NCNFs is maintained at 180 mAh·g^(-1)after 500 cycles when used in lithium storage ***,in the case of sodium storage,at 1 A·g^(-1),the MoSe_(2)@NCNFs shows a capacity of 122mAh·g^(-1)after 500 *** findings suggest that the MoSe_(2)@NCNF electrodes may be a promising candidate for use in reversible Li/Na storage applications.

关键词： Li/Na storage Freestanding electrode MoSe_(2) Electrochemical reaction kinetics Structural integrity

Resource allocation for D2D-assisted haptic communications

在线全文

学校读者我要写书评

暂无评论

Digital Communications and Networks 2024年第1期10卷 63-74页

作者： yan Wu chao Yue yang yang Liang Ao College of Telecommunication Engineering Army Engineering University of PLANanjing210000China

Haptic communications is recognized as a promising enabler of extensive services by enabling real-time haptic control and feedback in remote environments,e.g.,teleoperation and autonomous *** the strict transmission requirements on reliability and latency,Device-to-Device(D2D)communications is introduced to assist haptic *** particular,the teleoperators with poor channel quality are assisted by auxiliaries,and each auxiliary and its corresponding teleoperator constitute a D2D ***,the haptic interaction and the scarcity of radio resources pose severe challenges to the resource allocation,especially facing the sporadic packet ***,the contentionbased access scheme is applied to achieve low-latency transmission,where the resource scheduling latency is omitted and users can directly access available *** this context,we derive the reliability index of D2D pairs under the contention-based access scheme,i.e.,closed-loop packet error ***,the reliability performance is guaranteed by bidirectional power control,which aims to minimize the sum packet error probability of all D2D *** game theory is introduced to solve the problem with low ***,a distributed power control algorithm based on synchronous log-linear learning is proposed to converge to the optimal Nash *** results demonstrate the superiority of the proposed learning algorithm.

关键词： Haptic communications D2D Power control Contention-based access Potential game

River width and depth as key factors of diurnal activity energy expenditure allocation for wintering Spot-billed Ducks in the Xin'an River Basin

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

Avian Research 2024年第1期15卷 116-122页

作者： chao Yu Xuying Lu Deli Sun Mengnan Chu Xueyun Li qun Li College of Life and Environmental Sciences Huangshan UniversityHuangshan245021China Environment Conservation Research Centre of Xin’an River Basin Huangshan UniversityHuangshan 245021China Department of Resources Conservation Southern Anhui National Wildlife Rescue CenterXiuning 245400China

Rivers are important habitats for wintering ***,they are easily influenced by natural and human *** important approach for waterbirds to adapt to habitats is adjusting the activity time and energy expenditure allocation of diurnal *** compensatory foraging hypothesis predicts that increased energy expenditure leads to longer foraging time,which in turn increases food intake and helps maintain a constant energy ***,it is unclear whether human-disturbed habitats result in increased energy expenditure related to safety or *** this study,the scan sample method was used to observe the diurnal behavior of the wintering Spot-billed Duck(Anas poecilorhyncha) in two rivers in the Xin’an River Basin from October 2021 to March *** allocation of time and energy expenditure for activity in both normal and disturbed environments was *** results showed that foraging accounted for the highest percentage of time and energy ***,foraging decreased in the disturbed environment than that in the normal *** behavior showed the opposite trend,while other behaviors were similar in both *** total diurnal energy expenditure of ducks in the disturbed environment was greater than that in the normal environment,with decreased foraging and resting time percentage and increased behaviors related to immediate safety(swimming and alert) and *** results oppose the compensatory foraging hypothesis in favor of increased *** optimal diurnal energy expenditure model included river width and water depth,which had a positive relationship;an increase in either of these two factors resulted in an increase in energy *** study provides a better understanding of energy allocation strategies underlying the superficial time allocation of wintering waterbirds according to environmental *** these changes can help understand the maximum fitness of wi

关键词： Diurnal behavior activities River factors Time and energy expenditure allocation Wintering Spot-billed Duck Xin’an River Basin

Effect of Fuzheng Jiedu granule on immunological function and level of immune-related cytokines in immune-suppressed mice

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2016年第3期15卷 650-657页

作者： YU Zhan-mei HUANG Xian-hui yan chao-qun GAO Jin LIANG Zi-sen Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation College of Veterinary Medicine South China Agricultural University

Fuzheng Jiedu granule exhibits a number of health benefits and it is thought that the mechanisms involved in these effects are due to the modulation of immunity. In this article, we studied the effect of Fuzheng Jiedu granule on immunological function and the expression of immune-related cytokines in immune-suppressed mice. 72 mice were randomly divided into six groups, with 12 in each group. The control groups included an untreated group, a negative control group（Cyclophosphamide） and a positive control group（Astragalus polysaccharide）. There were three treated groups, which were given different doses of Fuzheng Jiedu granule： a low dose（100 mg kg^（–1））, a medium dose（400 mg kg^（–1）） and a high dose（600 mg kg^（–1））. With the exception of the untreated control animals, each group received an intraperitoneal injection of Cyclophosphamide（100 mg kg^（–1）） for 3 days to establish the immune-suppressed model. Mice were then treated for 19 consecutive days and, 24 h after the last treatment, blood was taken for the eyeballs and serum separation was performed. Analysis was made of the levels of related cytokines（IgA, IgG, IgM, IL-6, IFN-γ, C3, C4 and TNF-α）, the transformation of lymphocytes and the immune organ indexes. The results showed that Fuzheng Jiedu granule can improve the levels of cytokines, the rate of proliferation of lymphocytes and the immune organ indexes of immune-suppressed mice.

关键词： Fuzheng Jiedu granule immune suppression cytokines lymphocytes immune organ index