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Accurate location of all surface wave modes for Green's functions of a layered medium by consecutive perturbations

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Science China(Information Sciences) 2010年第11期53卷 2363-2376页

作者： song zhe, zhou houxing, hu jun, LI weiDong & hong wei State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, China 1. State Key Laboratory of Millimeter Waves School of Information Science and Engineering Southeast University Nanjing 210096 China

In this paper, an efficient method is proposed to quickly and accurately locate all the surface wave modes of spectral Green’s functions of a layered medium. This method consists of two parts. In the first part, all the surface wave poles without considering the medium loss are located by a modified dichotomy on the real axis in the complex plane. In the second part, consecutive perturbations with respect to the medium loss are performed, which means that the medium loss is increased step by step from zero to the given value, and at each step, the Newton-Raphson algorithm is employed to find all the current poles, with the poles at the previous step as initial values. The residues of the surface wave poles are analytically calculated without any contour integral. The whole procedure is based on the recursively rational forms of spectral Green’s functions. As an application, all the surface wave poles and their residues obtained by the method proposed in this paper are applied in evaluation of the spatial Green’s functions by the discrete complex image method. Some numerical examples are provided to validate the correctness and efficiency of the proposed method.

关键词： Green’s function Sommerfeld integral surface wave pole perturbation discrete complex image method

Artificial Intelligence to Diagnose Tibial Plateau Fractures: An Intelligent Assistant for Orthopedic Physicians

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Current Medical Science 2021年第6期41卷 1158-1164页

作者： Peng-ran LIU Jia-yao ZHANG Ming-di XUE Yu-yu DUAN Jia-lang hu song-xiang LIU Yi XIE hong-lin WANG jun-wen WANG Tong-tong huO zhe-wei YE Department of Orthopedics Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China hubei University of Chinese Medicine Wuhan 430070China Department of Orthopedics Wuhan Pu’ai HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

Objective:To explore a new artificial intelligence(AI)-aided method to assist the clinical diagnosis of tibial plateau fractures(TPFs)and further measure its validity and ***:A total of 542 X-rays of TPFs were collected as a reference *** AI algorithm(RetinaNet)was trained to analyze and detect TPF on the *** ability of the AI algorithm was determined by indexes such as detection accuracy and time taken for *** algorithm performance was also compared with orthopedic ***:The AI algorithm showed a detection accuracy of 0.91 for the identification of TPF,which was similar to the performance of orthopedic physicians(0.92±0.03).The average time spent for analysis of the AI was 0.56 s,which was 16 times faster than human performance(8.44±3.26 s).Conclusion:The AI algorithm is a valid and efficient method for the clinical diagnosis of *** can be a useful assistant for orthopedic physicians,which largely promotes clinical workflow and further guarantees the health and security of patients.

关键词： artificial intelligence tibial plateau fracture diagnosis

电磁场积分方程全等形子域的重叠型区域分解算法

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应用科学学报 2011年第4期29卷 410-416页

作者：胡俊洪伟周后型李卫东宋喆谢家烨东南大学毫米波国家重点实验室南京210096

提出一种电磁场表面积分方程全等形子域的重叠型区域分解算法.该算法在全等形子域上形成一致网格并使所有子域的自作用矩阵共享一个"内-内"子矩阵,显著减少了区域分解算法的内存需求和阻抗矩阵的填充时间.文中给出的多个算例表明,该算... 详细信息

提出一种电磁场表面积分方程全等形子域的重叠型区域分解算法.该算法在全等形子域上形成一致网格并使所有子域的自作用矩阵共享一个"内-内"子矩阵,显著减少了区域分解算法的内存需求和阻抗矩阵的填充时间.文中给出的多个算例表明,该算法能得到与矩量法和重叠型区域分解法相一致的计算结果,同时有效减少了对内存的需求和所用的计算时间,从而验证了算法的正确性和有效性.

关键词：表面积分方程电磁散射重叠型区域分解算法全等形子域

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生物油电催化加氢提质技术研究进展

化工学报 2021年第10期72卷 4987-5001页

作者：邓伟林镇浩熊哲汪雪棚徐俊江龙苏胜汪一胡松向军华中科技大学煤燃烧国家重点实验室湖北武汉430074 香港城市大学能源与环境学院香港999077

生物油是一种可再生的碳中和有机资源,在液体燃料和高值化学品生产中显示出较大的潜力,对其大规模利用有助于实现碳中和目标。生物油因其固有的腐蚀性和化学不稳定性而需要提质以提高其应用价值。电催化加氢能够在常温常压下实现生物油... 详细信息

生物油是一种可再生的碳中和有机资源,在液体燃料和高值化学品生产中显示出较大的潜力,对其大规模利用有助于实现碳中和目标。生物油因其固有的腐蚀性和化学不稳定性而需要提质以提高其应用价值。电催化加氢能够在常温常压下实现生物油加氢提质,该方法反应条件温和、操作简单、能源效率高,具有碳中和属性,为生物油提质提供了新的选择。综述了近年来生物油电催化加氢的研究进展,分析了不同生物油模型化合物在电催化加氢过程中的作用机理。讨论了真实生物油样品的电催化加氢实例,以证明电催化应用于生物油提质的可行性。最后,针对生物油电催化加氢提质技术面临的困难和挑战,提出了该领域未来的研究方向和重点,并展望了生物油电催化加氢提质工业化应用的前景。

关键词：生物油电化学电催化加氢提质还原反应

The first data release(DR1) of the LAMOST regular survey

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Research in Astronomy and Astrophysics 2015年第8期15卷 1095-1124页

作者： A-Li Luo Yong-Heng Zhao Gang Zhao Li-Cai Deng Xiao-wei Liu Yi-Peng Jing Gang Wang Hao-Tong Zhang Jian-Rong Shi Xiang-Qun Cui Yao-Quan Chu Guo-Ping Li Zhong-Rui Bai Yue Wu Yan Cai Shu-Yun Cao Zi-huang Cao Jeffrey L.Carlin Hai-Yuan Chen Jian-jun Chen Kun-Xin Chen Li Chen Xue-Lei Chen Xiao-Yan Chen Ying Chen Norbert Christlieb Jia-Ru Chu Chen-zhou Cui Yi-Qiao Dong Bing Du Dong-wei Fan Lei Feng Jian-Ning Fu Peng Gao Xue-Fei Gong Bo-Zhong Gu Yan-Xin Guo Zhan-Wen Han Bo-Liang He Jin-Liang Hou Yong-hui Hou Wen Hou hong-Zhuan hu Ning-Sheng hu Zhong-Wen hu Zhi-Ying huo Lei Jia Fang-hua Jiang Xiang Jiang Zhi-Bo Jiang Ge Jin Xiao Kong Xu Kong Ya-Juan Lei Ai-hua Li Chang-hua Li Guang-wei Li Hai-Ning Li Jian Li Qi Li Shuang Li Sha-Sha Li Xin-Nan Li Yan Li Yin-Bi Li Ye-Ping Li Yuan Liang Chien-Cheng Lin Chao Liu Gen-Rong Liu Guan-Qun Liu Zhi-Gang Liu Wen-Zhi Lu Yu Luo Yin-Dun Mao Heidi Newberg Ji-jun Ni Zhao-Xiang Qi Yong-jun Qi Shi-Yin Shen huo-Ming Shi Jing song Yi-Han song Ding-Qiang Su hong-jun Su zheng-hong Tang Qing-Sheng Tao Yuan Tian Dan Wang Da-Qi Wang Feng-Fei Wang Guo-Min Wang Hai Wang hong-Chi Wang Jian Wang Jia-Ning Wang Jian-Ling Wang Jian-Ping Wang jun-Xian Wang Lei Wang Meng-Xin Wang Shou-Guan Wang Shu-Qing Wang Xia Wang Ya-Nan Wang You Wang Yue-Fei Wang You-Fen Wang Peng wei Ming-Zhi wei hong Wu Ke-Fei Wu Xue-Bing Wu Yu-Zhong Wu Xiao-zheng Xing Ling-zhe Xu Xin-Qi Xu Yan Xu Tai-Sheng Yan De-hua Yang Hai-Feng Yang hui-Qin Yang Ming Yang zheng-Qiu Yao Yong Yu hui Yuan Hai-Bo Yuan Hai-Long Yuan wei-Min Yuan Chao Zhai En-Peng Zhang hua-wei Zhang Jian-Nan Zhang Li-Pin Zhang wei Zhang Yong Zhang Yan-Xia Zhang zheng-Chao Zhang Ming Zhao Fang zhou Xu zhou Jie Zhu Yong-Tian Zhu Si-Cheng Zou Fang Zuo National Astronomical Observatories Chinese Academy of Sciences Department of Astronomy Peking University Shanghai Astronomical Observatory Chinese Academy of Sciences Nanjing Institute of Astronomical Optics & Technology National Astronomical ObservatoriesChinese Academy of Sciences University of Science and Technology of China Department of Physics Applied Physics and AstronomyRensselaer Polytechnic InstituteTroyNY 12180USA Department of Physics and Astronomy Earlham CollegeRichmondIN 47374USA Universitt Heidelberg Zentrum für AstronomieLandessternwarteKnigstuhl 1269117 HeidelbergGermany Department of Astronomy Beijing Normal University Yunnan Observatories Chinese Academy of Sciences Purple Mountain Observatory Chinese Academy of Sciences

The Large sky Area Multi-Object Fiber Spectroscopic Telescope（LAMOST） general survey is a spectroscopic survey that will eventually cover approximately half of the celestial sphere and collect 10 million spectra of stars, galaxies and QSOs. Objects in both the pilot survey and the first year regular survey are included in the LAMOST DR1. The pilot survey started in October 2011 and ended in june 2012, and the data have been released to the public as the LAMOST Pilot Data Release in August 2012. The regular survey started in September 2012, and completed its first year of operation in june 2013. The LAMOST DR1 includes a total of 1202 plates containing 2 955 336 spectra, of which 1 790 879 spectra have observed signalto-noise ratio（SNR） ≥ 10. All data with SNR ≥ 2 are formally released as LAMOST DR1 under the LAMOST data policy. This data release contains a total of 2 204 696 spectra, of which 1 944 329 are stellar spectra, 12 082 are galaxy spectra and 5017 are quasars. The DR1 not only includes spectra, but also three stellar catalogs with measured parameters： late A,FGK-type stars with high quality spectra（1 061 918 entries）, A-type stars（100 073 entries）, and M-type stars（121 522 entries）. This paper introduces the survey design, the observational and instrumental limitations, data reduction and analysis, and some caveats. A description of the FITS structure of spectral files and parameter catalogs is also provided.

关键词： techniques: spectroscopic survey—data release—catalog

Data release of the LAMOST pilot survey

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Research in Astronomy and Astrophysics 2012年第9期12卷 1243-1246页

作者： A-Li Luo Hao-Tong Zhang Yong-Heng Zhao Gang Zhao Xiang-Qun Cui Guo-Ping Li Yao-Quan Chu Jian-Rong Shi Gang Wang Jian-Nan Zhang Zhong-Rui Bai Xiao-Yan Chen Feng-Fei Wang Yan-Xin Guo Jian-jun Chen Bing Du Xiao Kong Ya-Juan Lei Yin-Bi Li Yi-Han song Yue Wu Yan-Xia Zhang Xin-Lin zhou Fang Zuo Peng Du Lin He Wen Hou Yi-Qiao Dong Jian Li Guang-wei Li Shuang Li Jing song Yuan Tian Meng-Xin Wang Yong-hui Hou Zhi-Ying huo hong-Zhuan hu Ning-Sheng hu Zhong-Wen hu Lei Jia Fang-hua Jiang Xiang Jiang Zi-Bo Jiang Ge Jin Ai-hua Li Qi Li Yin-Dun Mao zheng-hong Tang Qing-Sheng Tao Liang-Ping Tu Da-Qing Wang Dan Wang Jian-Ping Wang Lei Wang Shou-Guan Wang Shu-Qing Wang Ya-Nan Wang You Wang Yue-Fei Wang Ming-Zhi wei Xiang-Xiang Xue Xiao-zheng Xing Ling-zhe Xu Xin-Qi Xu Yan Xu De-hua Yang Shi-Hai Yang zheng-Qiu Yao Yong Yu hui Yuan Chao Zhai En-Peng Zhang Jing Zhang Li-Ping Zhang weiZhang Yong Zhang zhen-Chao Zhang Ming Zhao Fang zhou Yong-Tian Zhu Jie Zhu Si-Cheng Zou National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 China lal @ lamost o rg Nanjing Institute of Astronomical Optics and Technology National Astronomical ObservatoriesChinese Academy of Sciences Nanjing 210042 China University of Science and Technologyof China Hefei 230026 China Shanghai Astronomical Observatory Chinese Academy of Sciences Shanghai 200030 China Institute of Architecture Design and Research Chinese Academy of Sciences Beijing 100190China

This paper describes the data release of the LAMOST pilot survey, which includes data reduction, calibration, spectral analysis, data products and data access. The accuracy of the released data and the information about the FITS headers of spectra are also introduced. The released data set includes 319 000 spectra and a catalog of these objects.

关键词： techniques: spectroscopic survey — data reduction — data release

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关中黑猪精液常温保存研究

畜牧兽医杂志 2015年第2期34卷 1-4页

作者：陈晓畅宋学太王师哲胡建宏杨公社庞卫军西北农林科技大学动物科技学院陕西杨凌712100

关中黑猪是陕西省培育品种,具有抗病能力强、繁殖力高、耐粗饲和肉质好等特点。由于国外瘦肉型猪对国内市场的冲击,关中黑猪的市场环境日益下降,使得许多优良性状发生分离变化。本研究选取5种常用猪精液常温保存稀释剂,对关中黑猪精液... 详细信息

关中黑猪是陕西省培育品种,具有抗病能力强、繁殖力高、耐粗饲和肉质好等特点。由于国外瘦肉型猪对国内市场的冲击,关中黑猪的市场环境日益下降,使得许多优良性状发生分离变化。本研究选取5种常用猪精液常温保存稀释剂,对关中黑猪精液保存最适宜温度及抗生素选择进行研究。结果表明,关中黑猪种公猪鲜精活力为0.85,畸形率16%,pH7.3,精子密度2.36亿/mL,平均采精量250mL,色泽为乳白色。在不同的稀释剂中,保存效果最好的是Ⅲ号稀释剂,可保存5d,活力为0.5,Ⅰ号稀释剂效果次之,Ⅱ号稀释液略好于Ⅳ、Ⅴ号稀释液。在短时间内（≦2d）,Ⅰ号稀释剂与Ⅲ号稀释剂保存效果无明显差异,而Ⅰ号稀释剂成本更低,更适用于生产实践中关中黑猪精液短期保存。此外,添加青霉素、庆大霉素或青霉素＋庆大霉素的混合液后保存效果没有差异。因此,关中黑猪精常温保存的最佳温度是15~20℃,本研究为关中黑猪人工授精技术及提高育种水平提供依据。

关键词：关中黑猪精液品质常温保存稀释剂

不同病因非梗阻性无精子症患者显微切开睾丸取精及ICSI结局比较

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中华男科学杂志 2018年第10期24卷 887-892页

作者：杨竣任新玲谷龙杰孙雪娇宋靖宇余哲唐哲高鑫涛魏玉兰吴黎郭娜胡娟钱坤靳镭蓝儒竹王涛王少刚刘继红华中科技大学同济医学院附属同济医院泌尿外科湖北武汉430030 华中科技大学同济医学院附属同济医院泌尿外科研究所湖北武汉430030 华中科技大学同济医学院附属同济医院生殖医学专科湖北武汉430030

目的:比较不同病因非梗阻性无精子症(NOA)患者显微切开睾丸取精术(micro-TESE)的成功率及配偶卵细胞胞质内单精子注射(ICSI)结局。方法:回顾分析2016年9月至2017年12月155例行micro-TESE NOA患者的临床资料,根据不同病因将其分为先天性N... 详细信息

目的:比较不同病因非梗阻性无精子症(NOA)患者显微切开睾丸取精术(micro-TESE)的成功率及配偶卵细胞胞质内单精子注射(ICSI)结局。方法:回顾分析2016年9月至2017年12月155例行micro-TESE NOA患者的临床资料,根据不同病因将其分为先天性NOA(n=49)、获得性NOA(n=15)和特发性NOA(n=91) 3组,比较3组患者年龄、睾丸体积、生殖激素水平、超声表现、micro-TESE取精成功率。同时,根据女方情况,纳入符合要求的取精成功患者对受精率、可利用胚胎率和临床妊娠率进行分析。结果:先天性NOA患者睾丸体积[(6. 4±5. 0) ml)]显著小于获得性NOA患者[(10. 2±2. 0) ml]和特发性NOA患者[(9.9±3.2) ml](P <0.05);先天性NOA患者LH[(15. 2±10. 1) IU/L]显著高于获得性NOA患者[(9. 1±6. 5) IU/L)]和特发性NOA患者[(7. 8±3. 5) IU/L)](P <0. 05);而特发性NOA患者T[(11. 8±4. 8) nmol/L]显著高于先天性NOA患者[(8. 9±4. 5) nmol/L](P <0. 05)。先天性NOA患者micro-TESE取精成功率为73. 5%(36/49),获得性NOA患者为100%(15/15),特发性NOA患者为24. 2%(22/91),3组间差异显著(P <0. 05)。获得性NOA患者配偶ICSI后受精率为(73. 1±23. 3)%,显著高于先天性NOA患者[(48. 9±21. 7)%]和特发性NOA患者[(52. 6±22. 7)%](P <0. 05)。不同病因NOA患者配偶ICSI后可利用胚胎率和临床妊娠率间无显著差异。结论:获得性NOA患者micro-TESE取精成功率最高,且ICSI后受精率、可利用胚胎率以及临床妊娠率最高,其次是先天性NOA患者;特发性NOA患者取精成功率及ICSI结局较差。

关键词：非梗阻性无精子症先天性获得性特发性显微切开睾丸取精术卵细胞胞质内单精子注射

The DIRECT consortium and the REST-meta-MDD project:towards neuroimaging biomarkers of major depressive disorder

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Psychoradiology 2022年第1期2卷 32-42页

作者： Xiao Chen Bin Lu hui-Xian Li Xue-Ying Li Yu-wei Wang Francisco Xavier Castellanos Li-Ping Cao Ning-Xuan Chen wei Chen Yu-Qi Cheng Shi-Xian Cui Zhao-Yu Deng Yi-Ru Fang Qi-Yong Gong Wen-Bin Guo zheng-Jia-Yi hu Li Kuang Bao-Juan Li Le Li Tao Li Tao Lian Yi-Fan Liao Yan-song Liu zhe-Ning Liu Jian-Ping Lu Qing-hua Luo hua-Qing Meng Dai-hui Peng Jiang Qiu Yue-Di Shen Tian-Mei Si Yan-Qing Tang Chuan-Yue Wang Fei Wang hua-Ning Wang Kai Wang Xiang Wang Ying Wang Zi-Han Wang Xiao-Ping Wu Chun-Ming Xie Guang-Rong Xie Peng Xie Xiu-Feng Xu hong Yang Jian Yang Shu-Qiao Yao Yong-Qiang Yu Yong-Gui Yuan Ke-Rang Zhang wei Zhang Zhi-jun Zhang jun-Juan Zhu Xi-Nian Zuo Jing-Ping Zhao Yu-Feng Zang the DIRECT consortium Chao-Gan Yan CAS Key Laboratory of Behavioral Science Institute of PsychologyChinese Academy of SciencesBeijing 100101China International Big-Data Center for Depression Research Chinese Academy of SciencesBeijing 100101China Magnetic Resonance Imaging Research Center Institute of PsychologyChinese Academy of SciencesBeijing 100101China Department of Psychology University of Chinese Academy of SciencesBeijing 100049China Sino-Danish College University of Chinese Academy of SciencesBeijing 101408China Sino-Danish Center for Education and Research Graduate University of Chinese Academy of SciencesBeijing 101408China Department of Child and Adolescent Psychiatry NYU Grossman School of MedicineNew YorkNY 10016USA Nathan Kline Institute for Psychiatric Research OrangeburgNew YorkNY 10962USA 9Affiliated Brain Hospital of Guangzhou Medical UniversityGuangzhou 510370China Capital Normal University Beijing 100089China Department of Psychiatry Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou 310020ZhejiangChina Department of Psychiatry First Affiliated Hospital of Kunming Medical UniversityKunmingYunnan 650032China Shanghai Mental Health Center Shanghai Jiao Tong University School of MedicineShanghai 200030China huaxi MR Research Center(HMRRC) Department of RadiologyWest China Hospital of Sichuan UniversityChengduSichuan 610044China Research Unit of Psychoradiology Chinese Academy of Medical SciencesChengduSichuan 610052China Department of Psychiatry and National Clinical Research Center for Mental DisordersThe Second Xiangya Hospital of Central South UniversityChangsha 410011HunanChina Department of Psychiatry The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400042China Xijing Hospital of Air Force Military Medical University Xi’anShaanxi 710032China Center for Cognitive Science of Language Beijing Language and Culture UniversityBeijing 100083China Affiliated Mental Health Center&Hangzhou Seventh People’s Hospital Zhejiang University School of

Despite a growing neuroimaging literature on the pathophysiology of major depressive disorder(MDD),repro-ducible findings are lacking,probably reflecting mostly small sample sizes and heterogeneity in analytic *** address these issues,the Depression Imaging REsearch ConsorTium(DIRECT)was *** REST-meta-MDD project,pooling 2428 functional brain images processed with a standardized pipeline across all participating sites,has been the first effort from *** this review,we present an overview of the moti-vations,rationale,and principal findings of the studies so far from the REST-meta-MDD *** from the first round of analyses of the pooled repository have included alterations in functional connectivity within the default mode network,in whole-brain topological properties,in dynamic features,and in functional *** well-powered exploratory observations have also provided the basis for future longitudinal hypothesis-driven *** these fruitful explorations,DIRECT has proceeded to its second stage of data sharing that seeks to examine ethnicity in brain alterations in MDD by extending the exclusive Chinese original sample to other ethnic groups through international collaborations.A state-of-the-art,surface-based preprocessing pipeline has also been introduced to improve *** images from patients with bipolar disorder and schizophrenia will be included to identify shared and unique abnormalities across diag-nosis *** addition,large-scale longitudinal studies targeting brain network alterations following antidepressant treatment,aggregation of diffusion tensor images,and the development of functional magnetic resonance imaging-guided neuromodulation approaches are *** these endeavours,we hope to accelerate the translation of functional neuroimaging findings to clinical use,such as evaluating longitudinal effects of antidepressant medications and developing individualized

关键词： major depressive disorder DIRECT R-fMRI database neuroimaging