检索结果-南通市图书馆

Efficient Two-Dimensional Defect-Free Dual-Species Atom Arrays Rearrangement Algorithm with Near-Fewest Atom Moves

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 2022年第8期39卷 34-38页

作者： Zhi-Jin Tao Li-Geng Yu Peng Xu Jia-Yi Hou Xiao-Dong He and Ming-sheng zhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and MathematicsInnovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan 430071China School of Physics and Technology Wuhan UniversityWuhan 430072China Wuhan Institute of Quantum Technology Wuhan 430206China

Dual-species single-atom array in optical tweezers has several advantages over the single-species atom array as a platform for quantum computing and quantum ***,creating the defect-free dual-species singleatom array with atom numbers over hundreds is *** recent experiments demonstrated,one of the main difficulties lies in designing an efficient algorithm to rearrange the stochastically loaded dual-species atoms arrays into arbitrary demanded *** propose a heuristic connectivity optimization algorithm to provide the near-fewest number of atom *** algorithm introduces the concept of using articulation points in an undirected graph to optimize connectivity as a critical consideration for arranging the atom moving *** in array size of hundreds atoms and various configurations,our algorithm shows a high success rate(>97%),low extra atom moves ratio,good scalability,and ***,we propose a complementary step to solve the problem of atom loss during the rearrangement.

关键词： Dual hundreds connectivity

Research on phase-detecting method for coherent combining beams in fiber laser array

在线全文

学校读者我要写书评

暂无评论

Optoelectronics Letters 2007年第6期3卷 455-458页

作者： CHU Xing-chun zhan sheng-bao ZHAO Shang-hong LI Yun-xia XU Jie Department of Network Engineering Telecommunication Engineering Institute Air Force Engineering University Xi＇ an710077 China

A novel method for phase-detecting of each individual beam in coherent beam combining system of fiber laser array based on the property of time-shift of fast Fourier transform is reported. It takes advantage of the relative movement of fringepattern to detect the phase shift between each individual beam and reference beam. No frequency shift component for reference beam is required in the system. At the same time, the acquisition fringe-pattern is firstly tailored to a few multiple of fringes in order to reduce the phase-detecting error caused by energy leakage during the course of fast Fourier transform. This technique can greatly reduce the effect of energy leakage and thus improve the phase-detecting precision. Basic principle of the new phase-detecting method is described in detail, and numerical results show that the phase-detecting error is less than 1/1000 wavelength bv utilizing our method.

关键词：光检测技术光纤元件组合光束激光

Treatment of bilateral developmental dysplasia of the hip joint with an improved technique:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2024年第7期12卷 1320-1325页

作者： Xing-Xing Yu Jian-Ye Chen Hong-sheng zhan Ming-Da Liu Yun-Fei Li Yu-Yan Jia College of Traditional Chinese Medicine Changchun University of Traditional Chinese MedicineChangchun 130117Jilin ProvinceChina Shi's Traumatology Medical Center Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 201203China College of Traditional Chinese Medicine The Affiliated Hospital of Changchun University of Chinese MedicineChangchun 130021Jilin ProvinceChina

BACKGROUND Developmental dysplasia of the hip(DDH)is a common osteoarticular deformity in pediatric orthopedics.A patient with bilateral DDH was diagnosed and treated using our improved technique"(powerful overturning acetabuloplasty)"combined with femoral rotational shortening *** SUMMARY A 4-year-old girl who was diagnosed with bilateral DDH could not stand normally,and sought surgical treatment to solve the problem of double hip extension and *** this child had high dislocation of the hip joint and the acetabular index was high,we changed the traditional acetabuloplasty to"powerful turnover acetabuloplasty"combined with femoral rotation shortening *** the short-term postoperative follow-up(1,3,6,9,12,and 15 months),the child had no discomfort in her lower *** the braces and internal fixation plates were removed,formal rehabilitation training was actively carried *** Our"powerful overturning acetabuloplasty"combined with femoral rotational shortening osteotomy is feasible in the treatment of DDH in *** technology may be widely used in the clinic.

关键词： Developmental dysplasia of the hip Improved technique 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

基于粗-模糊神经网络的决策控制

控制理论与应用 2005年第2期22卷 330-334页

作者：张倩生广东外语外贸大学信息科学技术学院

通过将模糊集和粗集,神经网络结合,提出了一种基于模糊规则的新的粗模糊神经网络,它通过利用误差反向传播算法实时修正该新型网络中的权值参数,从而能被有效地应用于不确定系统的决策分类与模式识别问题.最后通过对一个不确定决策系统... 详细信息

通过将模糊集和粗集,神经网络结合,提出了一种基于模糊规则的新的粗模糊神经网络,它通过利用误差反向传播算法实时修正该新型网络中的权值参数,从而能被有效地应用于不确定系统的决策分类与模式识别问题.最后通过对一个不确定决策系统的模式识别的仿真结果表明该粗模糊神经网络能大大提高模式识别决策的准确率.

关键词：粗集模糊神经网络决策表模式识别

Multiple Ecchordosis Physaliphora： A Challenging Diagnosis

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2015年第20期128卷 2826-2828页

作者： Xiao-Ling Zhong Biao Huang Chao Liu sheng-Quan zhan Southen Medical University Guangzhou Guangdong 510515 China Department of Radiology Guangdong Academy of Medical Sciences Guangdong General Hospital Guangzhou Guangdong 510080 China Department of Pathology Guangdong Academy of Medical Sciences Guangdong General Hospital Guangzhou Guangdong 510080 China Department of Neurosurgery Guangdong Academy of Medical Sciences Guangdong General Hospital Guangzhou Guangdong 510080 China

Ecchordosis physaliphora （EP） is a benign congenital hamartoma of the ectopic notochordal remnant, accounting for 0.5-2% of all autopsies, and found in 1.5% of all magnetic resonance imaging （MRI） of the brain. It commonly occurs along the midline within the retroclival and the prepontine cistern. EP has a slow growth rate and can vary in size from a few mm to 2 cm. Giant symptomatic EPs are extremely rare, and only four cases have been reported in the literature No cases of multiple EPs or EPs with metastasis have been reported,

关键词： Ecchordosis Physaliphora Magnetic Resonance Imaging Notochord Pathology Surgery

Suppression of Coriolis error in weak equivalence principle test using ^85Rb-^87Rb dual-species atom interferometer

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2020年第7期29卷 77-84页

作者： Wei-Tao Duan Chuan He Si-Tong Yan Yu-Hang Ji Lin Zhou Xi Chen Jin Wang Ming-sheng zhan State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of Sciences-Wuhan National Laboratory for OptoelectronicsWuhan 430071China School of Physics University of Chinese Academy of SciencesBeijing 100049China Center for Cold Atoms Physics Chinese Academy of SciencesWuhan 430071China

Coriolis effect is an important error source in the weak equivalence principle(WEP)test using atom *** this paper,the problem of Coriolis error in WEP test is studied theoretically and *** theoretical simulation,the Coriolis effect is analyzed by establishing an error *** measurement errors of Eotvos coefficient(η)in WEP test related to experimental parameters,such as horizontal-velocity difference and horizontal-position difference of atomic clouds,horizontal-position difference of detectors,and rotation compensation of Raman laser’s mirror are *** experimental investigation,the position difference between^85Rb and^87Rb atomic clouds is reduced to 0.1 mm by optimizing the experimental parameters,an alternating detection method is used to suppress the error caused by detection position difference,thus the Coriolis error related to the atomic clouds and detectors is reduced to 1.1 × 10^-*** Coriolis error is further corrected by com pensating the rotation of Raman laser's mirror,and the total uncertainty o f rj measurement related to the Coriolis effect is reduced as δη=4.4 × 10^-11.

关键词： atom interferometer weak equivalence principle test Coriolis effect

Diabetes mellitus with hepatic infarction: A case report with literature review

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2006年第31期12卷 5091-5093页

作者： Yong-Gui Deng zhan-sheng Zhao Mian Wang sheng-Ou Su Xi-Xian Yao Department of Endocrinology The Second Hospital of Hebei Medical University Shijiazhuang 050000 Hebei Province China

Hepatic infarction rarely occurs due to the double supply of arterial and portal inflow. A 53-year-old man with diabetes mellitus developed multiple hepatic infarctions after an episode of fever and diarrhea. The infarction was documented by pathology after partial liver resection. Several causes of hepatic infarction may present in this patient： dehydration and hypotension caused by fever and diarrhea, type 2 diabetes and administration of glibenclamide, diabetic ketoacidosis and widespread atherosderosis. We suggest that diabetic patient with elevated liver enzyme should be considered the possibility of hepatic infarction.

关键词： Diabetes mellitus Hepatic infarction Computerized tomography

Countermeasures for Remediation of Soil Pollution in Metal Mines

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Meteorological and Environmental Research 2021年第4期12卷 62-64页

作者： Siyuan SUN Pei LI sheng zhan Zhongjun Ecological Environment(Shanghai)Co. Ltd.Shanghai 201210China

Firstly,the causes and existence state of soil pollution in metal mines were ***,the remediation technology of heavy metal contaminated soil was ***,the remediation strategies for soil pollution in metal mines were **... 详细信息

关键词： Metal mines Soil pollution Phytoremediation Mining

Application of Siemens PLC and WinCC in the Monitoring-Control System of Bulk Grain Silo

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Application of Siemens PLC and WinCC in the Monitoring-Contr...