检索结果-南通市图书馆

Characterization of the current crowding effect on chip surface using a quantum wide-field microscope

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Optics Letters 2024年第6期22卷 123-128页

作者： Rui Zhao Ding Wang Huan fei wen Yunbo Shi Jun Tang Jun Liu Science and Technology on Electronic Test&Measurement Laboratory North University of ChinaTaiyuan 030051China

We characterize the current crowding effect for microwave radiation on a chip surface based on a quantum wide-field microscope combining a wide-field reconstruction technique. A swept microwave signal with the power of 0–30 d Bm is supplied to a dumbbell-shaped microstrip antenna, and the significant differences in microwave magnetic-field amplitudes attributed to the current crowding effect are experimentally observed in a 2.20 mm ×1.22 mm imaging area. The normalized microwave magnetic-field amplitude along the horizontal geometrical center of the image area further demonstrates the feasibility of the characterization of the current crowding effect. The experiments indicate the proposal can be qualified for the characterization of the anomalous area of the radio-frequency chip surface.

关键词： current crowding effect microwave field on chip surface quantum wide-field microscope nitrogen-vacancy center

维普期刊数据库

Chiral quantum heating and cooling with an optically controlled ion

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2024年第7期13卷 1393-1400页

作者： Jin-Tao Bu Jian-Qi Zhang Ge-Yi Ding Jia-Chong Li Jia-Wei Zhang Bin Wang wen-Qiang Ding wen-fei Yuan Liang Chen Qi Zhong Ali Keçebaş Şahin KÖzdemir fei Zhou Hui Jing Mang Feng State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and MathematicsInnovation Academy of Precision Measurement Science and TechnologyChinese Academy of Sciences430071 WuhanChina. University of the Chinese Academy of Sciences 100049 BeijingChina. Research Center for Quantum Precision Measurement Guangzhou Institute of Industry Technology511458 GuangzhouChina. Department of Engineering Science and Mechanics and Materials Research InstitutePennsylvania State UniversityUniversity ParkState CollegePA 16802USA. Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Department of Physics and Synergetic Innovation Center for Quantum Effects and ApplicationsHunan Normal University410081 ChangshaChina. Department of Physics Zhejiang Normal University321004 JinhuaChina

Quantum heat engines and refrigerators are open quantum systems,whose dynamics can be well understood using a non-Hermitian formalism.A prominent feature of non-Hermiticity is the existence of exceptional points(EPs),which has no counterpart in closed quantum *** has been shown in classical systems that dynamical encirclement in the vicinity of an EP,whether the loop includes the EP or not,could lead to chiral mode ***,we show that this is valid also for quantum systems when dynamical encircling is performed in the vicinity of their Liouvillian EPs(LEPs),which include the effects of quantum jumps and associated noise—an important quantum feature not present in previous *** demonstrate,using a Paul-trapped ultracold ion,the first chiral quantum heating and refrigeration by dynamically encircling a closed loop in the vicinity of an *** witness the cycling direction to be associated with the chirality and heat release(absorption)of the quantum heat engine(quantum refrigerator).Our experiments have revealed that not only the adiabaticity breakdown but also the Landau–Zener–Stückelberg process play an essential role during dynamic encircling,resulting in chiral thermodynamic *** observations contribute to further understanding of chiral and topological features in non-Hermitian systems and pave a way to exploring the relation between chirality and quantum thermodynamics.

关键词： quantum chiral dynamical

Ankylosing spondylitis coexisting with Clonorchis sinensis infection: A case report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第5期12卷 1018-1024页

作者： Tian-Xin Yi Wei Liu wen-fei Leng Xiao-Chuan Wang Liang Luo Department of Rheumatology Traditional Chinese Medicine Hospital Dianjiang ChongqingChongqing 408300China Department of Orthopaedic Traditional Chinese Medicine Hospital Dianjiang ChongqingChongqing 408300China Department of Chinese Medicine The People's Hospital of Yubei District of Chongqing CityChongqing 401120China

BACKGROUND Ankylosing spondylitis(AS)is a chronic immune-mediated inflammatory *** prevailing theory links AS onset to infections in susceptible ***,infections may impair the immune *** studies have investigated links between AS and various infections-bacterial,viral,fungal,and other microorganism ***,limited attention has been given to the association between AS and Clonorchis sinensis(***)*** SUMMARY A 27-year-old male with a 10-yr history of AS presented to our hospital with inflammatory lower back pain as the primary *** years ago,the patient had achieved a stable condition after treatment with biological ***,he experienced a recurrence of lumbosacral pain with an unexplained cause 10 d before hospital admission.A lumbosacral magnetic resonance imaging(MRI)scan revealed bone marrow edema in the left sacroiliac joint,and laboratory indicators were ***,the presence of *** eggs was detected in the *** patient was prescribed praziquantel,resulting in the disap-pearance of *** eggs in subsequent routine stool tests and relief from lumbosacral pain.A follow-up MRI scan performed after 4 months revealed a reduction in bone marrow edema around the left sacroiliac *** *** infections could potentially trigger the exacerbation of *** should pay attention to investigating the presence of *** Ankylosing spondylitis(AS)is a chronic inflammatory and rheumatic disease resulting from an imbalance between innate and acquired immune responses[1].While it can affect any part of the spine,its primary symptoms are persistent back pain and stiffness in the lower back and *** prevalence of AS per 10000 individuals is 23.8 in Europe,31.9 in North America,16.7 in Asia,10.2 in Latin America,and 7.4 in Africa[2].Infections commonly occur in the first 3 months and may act as potential triggers for the

关键词： Ankylosing spondylitis Clonorchis sinensis Parasites Infection Case report

Effectiveness of Histopathological Examination of Ultrasound-guided Puncture Biopsy Samples for Diagnosis of Extrapulmonary Tuberculosis

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2024年第2期37卷 170-177页

作者： GU wen fei SHI Xia MA Xin YU Jun Lei XU Jin Chuan QIAN Cheng Cheng HU Zhi Dong ZHANG Hui Shanghai Public Health Clinical Center Fudan UniversityShanghai 201508China School of Laboratory Medicine and Life Science Wenzhou Medical UniversityWenzhou 325000ZhejiangChina Department of Laboratory Medicine Zhejiang Putuo HospitalZhoushan 316100ZhejiangChina Zhongshan Hospital Fudan UniversityShanghai 200032China

Objective To evaluate the diagnostic value of histopathological examination of ultrasound-guided puncture biopsy samples in extrapulmonary tuberculosis(EPTB).Methods This study was conducted at the Shanghai Public Health Clinical Center.A total of 115patients underwent ultrasound-guided puncture biopsy,followed by MGIT 960 culture(culture),smear,Gene Xpert MTB/RIF(Xpert),and histopathological *** assays were performed to evaluate their effectiveness in diagnosing EPTB in comparison to two different diagnostic criteria:liquid culture and composite reference standard(CRS).Results When CRS was used as the reference standard,the sensitivity and specificity of culture,smear,Xpert,and histopathological examination were(44.83%,89.29%),(51.72%,89.29%),(70.11%,96.43%),and(85.06%,82.14%),*** on liquid culture tests,the sensitivity and specificity of smear,Xpert,and pathological examination were(66.67%,72.60%),(83.33%,63.01%),and(92.86%,45.21%),*** examination showed the highest sensitivity but lowest ***,we found that the combination of Xpert and histopathological examination showed a sensitivity of 90.80%and a specificity of 89.29%.Conclusion Ultrasound-guided puncture sampling is safe and effective for the diagnosis of *** with culture,smear,and Xpert,histopathological examination showed higher sensitivity but lower *** combination of histopathology with Xpert showed the best performance characteristics.

关键词： Extrapulmonary tuberculosis Diagnosis Biopsy Histopathological examination Puncture samples

维普期刊数据库

Mechanocatalysis of CO to CO_(2)on TiO_(2)surface controlled at atomic scale

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 5826-5834页

作者： Yuuki Adachi Robert Turanský Ján Brndiar Kamil Tokár Qiang Zhu Huan fei wen Yasuhiro Sugawara IvanŠtich Yan Jun Li Department of Applied Physics Osaka University2-1 YamadaokaSuitaOsaka 565-0871Japan Institute of Physics Slovak Academy of SciencesBratislava 84511Slovakia Institute of Informatics Slovak Academy of SciencesBratislava 84507Slovakia Faculty of Natural Sciences University of Ss.Cyril and MethodiusTrnava 91701Slovakia Key Laboratory of Instrumentation Science and Dynamic Measurement School of Instrument and ElectronicsNorth University of ChinaTaiyuan 030051China

The common ways to activate a chemical reaction are by heat,electric current,or ***,mechanochemistry,where the chemical reaction is activated by applied mechanical force,is less common and only poorly understood at the atomic *** we report a tip-induced activation of chemical reaction of carbon monoxide to dioxide on oxidized rutile TiO_(2)(110)*** activation is studied by atomic force microscopy,Kelvin probe force microscopy under ultrahigh-vacuum and liquid nitrogen temperature conditions,and density functional theory(DFT)*** reaction is inferred from hysteretic behavior of frequency shift signal further supported by vector force mapping of vertical and lateral forces needed to trigger the chemical reaction with torque motion of carbon monoxide towards an oxygen *** reaction is found to proceed stochastically at very small tip-sample ***,the local contact potential difference reveals the atomic-scale charge redistribution in the reactants required to unlock the *** results open up new insights into the mechanochemistry on metal oxide surfaces at the atomic scale.

关键词： atomic resolution mechanochemistry atomic force microscopy Kelvin probe force microscopy density functional theory(DFT)simulation CO oxidation catalysis rutile TiO_(2)surface

Breeding Asian seabass to increase survival against big belly disease and growth

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Aquaculture and Fisheries 2024年第5期9卷 731-738页

作者： Peng Liu Jun Hong Xia fei Sun Le Wang Zituo Yang May Lee Hong Yan Pang Yan fei wen Gen Hua Yue Temasek Life Sciences Laboratory National University of Singapore1 Research Link117604Singapore Department of Biological Sciences National University of Singapore14 Science Drive117543Singapore

Asian seabass(Lates calcarifer)is an important foodfish *** has been cultured in Singapore since the 1980s.A selective breeding program to improve growth,meat quality and disease resistance has been ongoing in Singapore since *** 2012,outbreaks of the big belly disease(BBD)occurred in two batches of offspring generated by a mass-cross among F1 brooders in a *** the outbreaks,only 437 survived in 6000 F2 *** parentage analysis with 10 microsatellites revealed that four parents(F1)produced high percentage of offspring that survived the BBD ***-two BBD survivor offspring(F2)were selected based on their growth performance at 90 days post hatch(dph),family origin and allelic *** were used as brooders to generate *** a period of five years,these F2 brooders produced six batches of offspring,where no outbreak of BBD *** the same period,outbreaks of BBD occurred in 4 out of 18 batches produced by F2 brooders selected for growth,with mortality rates ranging from 85.1%to 95.4%.In F3,the average body weight(57.1±1.09 g,n=3068)of the line for BBD survival was slightly lower than that(60.6±2.29 g,n=4280)of the line for growth at 90 *** both lines,the body weight of F3 was much higher than that(46.90±0.19 g,n=12117)of *** genetic diversity in the line for BBD survival(F3)was much lower than that in F3 line for growth due to small founder *** data indicate that the selection of BBD survival during BBD outbreaks using molecular parentage analysis is effective to reduce BBD *** further reduction of genetic diversity is essential in the line selected for increased survival against BBD.

关键词： Barramundi Infection Resistance Growth Marker Diversity

Clinical observation of extraction-site incisional hernia after laparoscopic colorectal surgery

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Surgery 2024年第3期16卷 710-716页

作者： Bao-Hang Fan Ke-Li Zhong Li-Jin Zhu Zhao Chen Fang Li wen-fei Wu Second Clinical Medical College of Jinan University Jinan UniversityShenzhen 518020Guangdong ProvinceChina Department of Gastrointestinal Surgery Shenzhen People’s Hospital(The Second Clinical Medical CollegeJinan UniversityThe First Affiliated HospitalSouthern University of Science and Technology)Shenzhen 518020Guangdong ProvinceChina Department of Radiation Oncology Shenzhen People’s Hospital(The Second Clinical Medical CollegeJinan UniversityThe First Affiliated HospitalSouthern University of Science and Technology)Shenzhen 518020Guangdong ProvinceChina

BACKGROUND Laparoscopic colorectal cancer surgery increases the risk of incisional hernia(IH)at the tumor extraction *** To investigate the incidence of IH at extraction sites following laparoscopic colo-rectal cancer surgery and identify the risk factors for IH *** This study retrospectively analyzed the data of 1614 patients who underwent la-paroscopic radical colorectal cancer surgery with tumor extraction through the abdominal wall at our center between January 2017 and December ***-rences in the incidence of postoperative IH at different extraction sites and the risk factors for IH incidence were *** Among the 1614 patients who underwent laparoscopic radical colorectal cancer surgery,303(18.8%),923(57.2%),171(10.6%),and 217(13.4%)tumors were ex-tracted through supraumbilical midline,infraumbilical midline,umbilical,and off-midline *** these,52 patients developed IH in the abdominal wall,with an incidence of 3.2%.The incidence of postoperative IH was significantly higher in the off-midline incision group(8.8%)than in the middle incision groups[the supraumbilical midline(2.6%),infraumbilical midline(2.2%),and umbilical incision(2.9%)groups](χ^(2)=24.985;P<0.05).Univariate analysis showed that IH occurrence was associated with age,obesity,sex,chronic cough,incision infection,and combined diabetes,anemia,and hypopro-teinemia(P<0.05).Similarly,multivariate analysis showed that off-midline incision,age,sex(female),obesity,incision infection,combined chronic cough,and hypoproteinemia were independent risk factors for IH at the site of laparoscopic colorectal cancer surgery(P<0.05).CONCLUSION The incidence of postoperative IH differs between extraction sites for laparoscopic colorectal cancer *** infraumbilical midline incision is associated with a lower hernia rate and is thus a suitable tumor extraction site.

关键词： Incisional hernia Laparoscopy Colorectal cancer Incision infection

Recent progress on fabrication, spectroscopy properties, and device applications in Sn-doped CdS micro-nano structures

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 Semiconductors 2024年第9期45卷 7-27页

作者： Bo Cao Ye Tian Huan fei wen Hao Guo Xiaoyu Wu Liangjie Li Zhenrong Zhang Lai Liu Qiang Zhu Jun Tang Jun Liu State Key Laboratory of Dynamic Measurement Technology School of Semiconductors and PhysicsNorth University of ChinaTaiyuan 030051China Shanxi Province Key Laboratory of Quantum Sensing and Precision Measurement North University of ChinaTaiyuan 030051China School of Instrument Science and Technology Xi'an Jiaotong UniversityXi'an 710049China

One-dimensional semiconductor materials possess excellent photoelectric properties and potential for the construction of integrated nanodevices. Among them, Sn-doped CdS has different micro-nano structures, including nanoribbons,nanowires, comb-like structures, and superlattices, with rich optical microcavity modes, excellent optical properties, and a wide range of application fields. This article reviews the research progress of various micrometer structures of Sn-doped CdS, systematically elaborates the effects of different growth conditions on the preparation of Sn-doped CdS micro-nano structures, as well as the spectral characteristics of these structures and their potential applications in certain fields. With the continuous progress of nanotechnology, it is expected that Sn-doped CdS micro-nano structures will achieve more breakthroughs in the field of optoelectronics and form cross-integration with other fields, jointly promoting scientific, technological, and social development.

关键词： Sn-doped CdS micro-nano structure superlattices optical microcavity

维普期刊数据库

Multi-objective wolf pack algorithm based on adaptive grouping strategy and crowding distance

在线全文

学校读者我要写书评

暂无评论

Kongzhi yu Juece/Control and Decision 2024年第11期39卷 3772-3780页

作者： Zhao, Jia Lv, Feng Xiao, Ren-Bin Fan, Tang-Huai Dong, wen-fei Wang, Hui School of Information Engineering Nanchang Institute of Technology Nanchang 330000 China Nanchang Key Laboratory of IoT Perception and Collaborative Computing for Smart City Nanchang Institute of Technology Nanchang 330099 China School of Artificial Intelligence and Automation Huazhong University of Science and Technology Wuhan 430074 China

In view of the wolf pack algorithm has good solving ability in single objective optimization problems, a multi-objective wolf pack algorithm (MOWPA-AG) based on adaptive grouping and updating of crowded distance is proposed by taking the advantages of the wolf pack biological habit and being used to solve multi-objective optimization problems. Firstly, an adaptive grouping strategy considering population diversity and dispersed search is proposed to simulate family aggregation in wolf packs. The strategy stratifies populations, separates populations and helps population diffusion search Pareto optimal solutions. Then, a population renewal mechanism based on crowding distance is designed, which enables the population to maintain rapid evolution while obtaining the optimal solution set. In order to verify the performance of the proposed algorithm, nine different benchmark testing problems are tested, and the effectiveness of the proposed algorithm is verified by comparing with other classic and recent multi-objective optimization algorithms. Finally, the MOWPA-AG is applied to solve the problem of four-bar truss structure in practical engineering, which shows the universality of the proposed algorithm. © 2024 Northeast University. All rights reserved.

关键词： Optimization algorithms