检索结果-南通市图书馆

Abnormal Action Recognition with Lightweight Pose Estimation Network in Electric Power Training Scene

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第6期79卷 4979-4994页

作者： Yunfeng Cai ran Qin jin Tang Long Zhang Xiaotian Bi Qing Yang State Grid Jiangsu Electric Power Co. Ltd.Research InstituteNanjing211103China School of Computer Engineering Nanjing Institute of TechnologyNanjing211167China

Electric power training is essential for ensuring the safety and reliability of the *** this study,we introduce a novel Abnormal Action Recognition(AAR)system that utilizes a Lightweight Pose Estimation Network(LPEN)to efficiently and effectively detect abnormal fall-down and trespass incidents in electric power training *** LPEN network,comprising three stages—MobileNet,Initial Stage,and Refinement Stage—is employed to swiftly extract image features,detect human key points,and refine them for accurate ***,a Pose-aware Action Analysis Module(PAAM)captures the positional coordinates of human skeletal points in each ***,an Abnormal Action Inference Module(AAIM)evaluates whether abnormal fall-down or unauthorized trespass behavior is *** fall-down recognition,three criteria—falling speed,main angles of skeletal points,and the person’s bounding box—are *** identify unauthorized trespass,emphasis is placed on the position of the *** experiments validate the effectiveness and efficiency of the proposed system in ensuring the safety and reliability of electric power training.

关键词： Abnormal action recognition action recognition lightweight pose estimation electric power training

Correlation of personality with individual reproductive success in shrub-nesting birds depends on their life history style

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 42-49页

作者： Jianchuan Li wen Zhang Ningning Sun Yujie Wang Lifang Gao ran Feng Liqing Fan Bo Du Tibet Museum of Natural Science Lhasa850011China School of Life Sciences Lanzhou UniversityLanzhou730000China Institute of Plateau Ecology Tibet Agricultural and Animal Husbandry UniversityLinzhi860000China

Two questions in the research of animal personality—whether there is a correlation between a personality trait and individual reproductive success,and what is the genetic basis underlying a personality trait—remain *** addressed these two questions in three shrub-nesting birds,the Azure-winged Magpie(Cyanopica cyanus,AM),White-collared Blackbird(Turdus albocinctus,WB),and Brown-cheeked Laughingthrush(Trochalopteron henrici,BL).The personality type of an individual was first identified according to its response to a territorial ***,we compared the fleeing distance,breeding parameters,and differential expressed genes(DEGs) in the brain transcriptome between bold and shy *** the three species,bold breeders exhibited more aggressiveness towards an intruder of their territory than did shy *** reproductive success of bold breeders was significantly higher than that of shy breeders in AM but not in WB and *** three species shared one DEG,crabp1,which was up-regulated in bold relative to in shy *** regulating the expression of corticotropin-releasing hormone,higher crabp1 gene expression can decrease cellular response to retinoic ***,bold individuals are insensitive to external stresses and able to exhibit more aggressiveness to intruders than their shier *** is beneficial to bold individuals in AM but not in WB and BL because the former could evoke neighbors to make the same response of defending against intruders but the latter could *** a personality trait may have the same genetic basis across species,its correlation with reproductive success depends largely on the life history style of a species.

关键词： Boldness Life history style Personality Reproductive success Transcriptome analysis

Design study of charge-stripping scheme of heavy ion beams for HIAF-BRing

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2024年第5期35卷 30-41页

作者： Jun-Jie Zhang Zhi-You Xu jin-Quan Zhang wen-wen Ge Liang-Ting Sun Huan-Yu Zhao Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China

Charge strippers play an essential role in heavy-ion accelerators by stripping the projectile ions to higher charge states to enhance the acceleration efficiency downstream of the *** the high-energy mode of the booster ring(BRing)of the high-intensity heavy-ion accelerator facility,the pre-accelerated ions from the iLinac will be stripped by a carbon foil to higher charge states and then injected into the *** key parameters of the stripper and stripped ions were calculated,and the influence of stripping on the beam quality was *** get high stripping efficiencies,the foil thicknesses and resultant charge state distributions for the typical ions were determined by the code *** equilibrium thickness was obtained for the U beam,while the stripper thicknesses for the Xe and Kr beams were determined based on a compromise between the stripped charge states and the stripping *** energy loss,energy straggling,and emittance growth due to stripping have a non-negligible impact on the transport of the stripped beams and the injection of the ***,these parameters were simulated by *** addition,the foil’s temperature evolution,which greatly affects the foil lifetime,was simulated by *** maximum temperature of the foil bombarded by the U and Xe beams with the nominal parameters will exceed the safe value in terms of the impact of evaporation on the foil’s *** the foil temperature constraint,the highest tolerable beam intensity and the injected ion number into the ring were derived for different beam *** results of this paper will present important reference data for the optimization design and commissioning of the beamline and injection to the BRing for the stripped ions.

关键词： High-intensity heavy-ion accelerator facility Charge stripper Energy spread Thermal analysis Emittance growth Injection turns

METTL5 promotes cell proliferation,invasion,and migration by up-regulating Toll-like receptor 8 expression 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5期16卷 2006-2017页

作者： Ling-Shang Kong ran Tao Yi-Fan Li wen-Bin Wang Xue Zhao Department of General Surgery The Second Affiliated Hospital of Anhui Medical UniversityHefei 230001Anhui ProvinceChina Department of Vascular Surgery The Second Affiliated Hospital of Anhui Medical UniversityHefei 230002Anhui ProvinceChina Department of General Surgery The First Affiliated Hospital of Anhui Medical UniversityHefei 230001Anhui ProvinceChina Anhui Public Health Clinical Center Hefei 230012Anhui ProvinceChina Department of Scientific Research Anhui Public Health Clinical CenterHefei 230012Anhui ProvinceChina Department of Scientific Research The First Affiliated Hospital of Anhui Medical UniversityHefei 230001Anhui ProvinceChina

BACKGROUND N6-methyladenosine(m6A)modification represents the predominant alteration found in eukaryotic messenger RNA and plays a crucial role in the progression of various ***,despite its significance,the comprehensive investigation of METTL5,a key m6A methyltransferase,in colorectal cancer(CRC)remains *** To investigate the role of METTL5 in *** We assessed METTL5 expression levels in clinical samples obtained from CRC patients as well as in CRC cell *** elucidate the downstream targets of METTL5,we performed RNA-sequencing analysis coupled with correlation analysis,leading us to identify Toll-like receptor 8(TLR8)as a potential downstream *** vitro functional assessments of METTL5 and TLR8 were conducted using CCK-8 assays,scratch assays,as well as assays measuring cell migration and *** Our findings reveal a pronounced upregulation of METTL5 expression in both CRC cells and tissues,which correlated significantly with an unfavorable *** vitro experiments unequivocally demonstrated the oncogenic role of METTL5,as evidenced by its promotion of CRC cell proliferation,invasion,and ***,we identified TLR8 as a downstream target of METTL5,and subsequent down-regulation of TLR8 led to a significant inhibition of CRC cell proliferation,invasion,and tumor *** The heightened expression of METTL5 in CRC is strongly associated with clinicopathological features and a poor prognosis,thereby underscoring its potential utility as a critical marker for facilitating early diagnosis and prognostication in CRC.

关键词： METTL5 Toll-like receptor 8 Colorectal cancer

Reassessing the impact of post-transjugular intrahepatic portosystemic shunt hepatic encephalopathy on mortality in patients with cirrhosis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary Surgery and Nutrition 2024年第3期13卷 540-543页

作者： Qiuju ran Zhang wen Shuyue Tuo jinhai Wang Xinxing Tantai Department of Gastroenterology The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina Clinical Research Center for Gastrointestinal Diseases of Shaanxi Province The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anChina

Nardelli et al.(1)conducted a multi-center observational study to assess the mortality risk in patients with and without overt hepatic encephalopathy(HE)after transjugular intrahepatic portosystemic shunt(TIPS).In their paper,the authors disclosed that post-TIPS overt HE was not linked to an increased risk of mortality in patients with cirrhosis during a median follow-up of 30 months(1).However,many other studies have reported that post-TIPS HE is significantly associated with a higher risk of mortality based on long-term follow-up in patients with cirrhosis(2-6).Given this inconsistency,we conducted a meta-analysis to evaluate the association between post-TIPS HE and mortality,using both unadjusted and adjusted effect estimates in patients with cirrhosis.

关键词： mortality cirrhosis TIPS

Embedded Majorana islands

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2024年第9期67卷 154-164页

作者： jin-Xing Hou Alex Weststrom Rui Wang wen-Li Yang Jian Li Institute of Modern Physics Northwest UniversityXi’an 710127China Department of Physics School of ScienceWestlake UniversityHangzhou 310030China Shaanxi Key Laboratory for Theoretical Physics Frontiers Xi’an 710127China Institute of Natural Sciences Westlake Institute for Advanced StudyHangzhou 310024China National Laboratory of Solid State Microstructures and Department of Physics Nanjing UniversityNanjing 210093China Collaborative Innovation Center for Advanced Microstructures Nanjing 210093China Peng Huanwu Center for Fundamental Theory Xi’an 710127China

Mesoscopic superconducting islands hosting Majorana zero modes(MZMs),or Majorana islands in short,offer a prototype of topological *** this work we investigate theoretically the model of a generic Majorana island tunneling-coupled to a singlepiece metallic substrate,hence an embedded Majorana *** show the crucial consequences of an interplay between the topological ground states nonlocally addressed by the MZMs and the metallic bath with coherent electron propagation:on the one hand,the topological degeneracy on the Majorana island can be preserved,by virtue of the particle-hole symmetry,despite the apparent bath-induced coupling between MZMs;on the other hand,the electronic interference in the metallic bath may lead to profound alterations to the renormalization group behavior of the hybrid system towards low energy/temperature compared with conventional Kondo *** work serves to establish the model of embedded Majorana islands as an experimentally relevant and theoretically intriguing problem particularly in the direction of topological quantum computation.

关键词： topological quantum computation Majorana zero modes topological qubit mesoscopic superconductor topological Kondo effect

Dynamic lithium-compensation mechanism for densification of garnet-type Li_(7)La_(3)Zr_(2)O_(12)electrolyte by Li_(2)O atmosphere buffer pair

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第7期17卷 6184-6191页

作者： Chujun Zheng Ya Chen Haoxin Dong Yan Lu Jun jin Zhaoyin wen CAS Key Laboratory of Materials for Energy Conversion Shanghai Institute of CeramicsChinese Academy of ScienceShanghai 200050China State Key Lab High Performance Ceram and Superfine Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Solid-state lithium metal batteries are one of the most promising options for next-generation batteries pursuing high-energy density and ***,the inevitable volatilization of lithium compounds during sintering leads to low relative density and low ionic conductivity of solid-state ***,the dynamic lithium-compensation mechanism is proposed to facilitate the densification of Ta-substituted garnet-type electrolyte(Li_(6.5)La_(3)Zr_(1.5)Ta_(0.5)O_(12)(LLZT))through the reversible manipulating of Li_(2)O ***_(2)ZrO_(3)is used as mother powder additive,which reacts with Li_(2)O in sintering atmosphere and forms Li_(6)Zr_(2)O_(7).Li_(2)ZrO_(3)/Li_(6)Zr_(2)O_(7)buffer pair manipulates the sintering Li_(2)O atmosphere,which is vital for LLZT,within the Li_(2)O partial pressure range corresponding to Li_(2)ZrO_(3)and Li_(6)Zr_(2)O_(7).Furthermore,the reversibility mechanism of buffer pair for Li_(2)O absorption and release is *** obtained LLZT exhibits a relative density of over 96%and an ionic conductivity exceeding 7×10^(−4)S·cm^(−1)with no abnormal grain *** symmetric cell demonstrates an excellent lithium dendrite suppressing ability(stable cycling at a current density of 0.3 mA·cm^(−2)for over 1000 h).Such dynamic lithium-compensation strategy has been successfully applied in atmosphere manipulation of LLZT sintering process,which reduces the dependence of LLZT on the Li_(2)O atmosphere,making it conducive to large-scale preparation of electrolyte ceramics.

关键词： solid-state batteries garnet-type electrolyte high-density electrolyte dynamic lithium-compensation buffer pair

Close-packed layer spacing as a practical guideline for structure symmetry manipulation of IV-VI/I-V-VI_(2) thermoelectrics

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

InfoMat 2024年第2期6卷 99-106页

作者： Tao jin Long Yang Xinyue Zhang wen Li Yanzhong Pei Interdisciplinary Materials Research Center School of Materials Science and EngineeringTongji UniversityShanghaithe People's Republic of China

The crystal-structure symmetry in real space can be inherited in the reciprocal space,making high-symmetry materials the top candidates for thermoelectrics due to their potential for significant electronic band degeneracy.A practical indicator that can quantitatively describe structural changes would help facilitate the advanced thermoelectric material *** face-centered cubic structures,the spatial environment of the same crystallographic plane family is isotropic,such that the distances between the close-packed layers can be derived from the atomic distances within the *** by this,the relationship between inter-and intra-layer geometric information can be used to compare crystal structures with their desired cubic *** close-packed layer spacing was found to be a practical guideline of crystal structure symmetry in IV-VI chalcogenides and I-V-VI_(2) ternary semiconductors,both of which are historically important *** continuous structural evolution toward high symmetry can be described by the layer spacing when temperature or/and composition change,which is demonstrated by a series of pristine and alloyed thermoelectric materials in this *** layerspacing-based guideline provides a quantitative pathway for manipulating crystal structures to improve the electrical and thermal properties of thermoelectric materials.

关键词： phase transition structure manipulation thermoelectric materials x-ray diffraction

Screening Psychrophilic Fungi of Cellulose Degradation and Characteristic of Enzyme Production

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Northeast Agricultural University(English Edition) 2016年第2期23卷 20-27页

作者： Wang Da-qing jin wen-ran Sun Tai-peng Meng Yu-tian Zhao Wei Wang Hong-yan Heilongjiang Economic Research Institute of State Farms Harbin 150030 China College of Resources and Environment Northeast Agricultural University Harbin 150030 China

A fungus（WR-C1） decomposed cellulose was isolated from a hypothermal litter layer using Congo red medium as the preliminary screening culture medium and then using a filter as the secondary screening medium at low temperature. The experiment showed that the weight loss rate of filter paper on the 15 th days could reach 30.69%. A morphologic and ITS gene sequence analysis suggested that CF-C1 was Cladosporium. We mainly studied the effects of culture time, inoculation amount, initial p H and different sources of carbon, nitrogen and inorganic salt on the cellulase production of strain WR-C1. Under optimum cultural condition, the highest value of WR-C1 enzyme production and filter paper enzyme were 3.27 U · m L～（-1） and 0.51 U · m L～（-1）.

关键词： low temperature cellulose-degrading fungi screening enzyme activity