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Inferring decelerated land subsidence and groundwater storage dynamics in Tianjin–langfang using Sentinel-1 InSAR

International Journal of Digital Earth 2022年第1期15卷 1526-1546页

作者： Xuguo Shi Tongtong Zhu Wei Tang Mi Jiang houjun Jiang Chen Yang Wei Zhan Zutao Ming Shaocheng Zhang School of Geography and Information Engineering China University of GeosciencesWuhanPeople’s Republic of China College of Geoscience and Surveying Engineering China University of Mining and TechnologyBeijingPeople’s Republic of China School of Geospatial Engineering and Science Sun Yat-Sen UniversityGuangzhouPeople’s Republic of China School of Civil Engineering Anhui Jianzhu UniversityHefeiPeople’s Republic of China Institute of Karst Geology CAGS/Key Laboratory of Karst DynamicsMNR&GZARGuilinPeople’s Republic of China The First Monitoring and Application Center China Earthquake AdministrationTianjinPeople’s Republic of China

To meet the growing demand for socioeconomic development,a large amount of groundwater is extracted from confined aquifers *** North China Plain has experienced considerable groundwater depletion and subsidence during the past six *** this study,we use Sentinel-1A/B SAR images from 2015 to 2020 to map the ground subsidence of the Tianjin–langfang *** subsiding zones centered at Guangyang,Wuqing–Bazhou,and Jinghai are identified with maximum subsidence rates of 98.1,121.8,and 104.7 mm/*** and long-term signals are separated from time series subsidence and hydraulic measurements using continuous wavelet transform to retrieve aquifer *** long-term subsidence,which fits well with an exponential decaying model,remarkably slows down in our study *** elastic skeletal storage coefficients range between 0.52×10−3 and 9.66×10−*** then retrieve the spatial–temporal variations of total groundwater storage,recoverable groundwater storage,and irreversible groundwater *** storage depletion rates are apparently reducing,which benefits from the operation of the South-to-North Water Transfer Project and local groundwater management practices.

关键词： North China Plain aquifer parameter South-to-North water transfer project groundwater storage subsidence

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Direct anastomosis of contralateral C_7 nerve root transfer with affected-side inferior trunk for repair of brachial plexus avulsion injury

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Neural Regeneration Research 2006年第6期1卷 566-568页

作者： houjun Yan Changqing Hu Yingli Jia Chunjie Cui Xuefeng li Jingyang Zhang Department of Hand Surgery the 252 Hospital of Chinese PLA Baoding 071000 Hebei Province China

AIM： To observe the effect of direct anastomosis of contralateral C7 nerve root transferred through prespina route with affected-side infedor trunk for repair of brachial plexus avulsion injury, and investigate its feasibility. METHODS ： Two male patients, with the age of 24 and 41 years respectively, were retrieved. When admitted to the hospital, they were diagnosed as brachial plexus avulsion injury. They subjected the operation in the 252 Hospital of Chinese PlA in March 2006 and May 2006 respectively. The proximal end of contralateral C7 nerve root was dissociated to nerve root pore and the distal end was dissociated to anterior and posterior divisions of middle trunk. The injured C7 nerve root was widely dissociated to inferior trunk, medial cord, ulnar nerve and medial head of median nerve. When elbow and shoulder joints were in flexion, the injured C7 nerve root was directly anastomosed with contralateral C7 nerve root in the gap between affected-side cervical vagina vasorum and esophagus with no tensions. RESUlTS： During 3 to 5 hours of operation, little hemorrhage was found, nerves were not used for connection. Dyspnea, hoarse voice and other complications did not appear, either. In the postoperative 7^th to 8^th months, electromyogram examination showed that the growth velocity of anastomosed nerve was normal. CONClUSION ： Direct anastomosis of contralateral C7 nerve root transferred through prespinal route with affected-side inferior trunk can be used for repair of brachial plexus avulsion injury with satisfying therapeutic effects.

关键词： brachial plexus nerve root therapeutic effects median nerve velocity of the growth

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Changes of norepinephrine and tumor necrosis factor in submandibular gland of rats with sympathetic nerve injury and the protective effect of 17 beta-estradiol

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Neural Regeneration Research 2006年第4期1卷 325-327页

作者： Yagao Feng Suya Deng Zhenqi liu Min Hu houjun Yan Qiusheng Wang Department of Hand Surgery the 252 Hospital of ChinesePLA Baoding 071000 HebeiProvince China

BACKGROUND： Recent researches have indicated that estrogen has extensive neuroprotective effects. So some studies designed ovariectomized animal models and administrated with estrogen, so as to verify its neuroprotective effects. OBJECTIVE： To observe the effect of 17 beta-estradiol on the content of norepinephrine （NE） and level of tumor necrosis factor （TNF） in submandibular glands of rats with sympathetic nerve injury, and analyze the dose-dependence and pathway of action. DESIGN： A randomized control animal study SETTINGS： Department of Hand Surgery, the 252 Hospital of Chinese PlA; Department of Hand Surgery Union Hospital affiliated to Tongji Medical College, Huazhong University of Science and Technology. MATERIAlS： Fifty healthy female Wistar rats were randomly divided into 5 groups with 10 rats in each group： sham-operated group, ovariectomy＋6-OHDA＋saline group, ovariectomy＋6-OHDA＋17β-estradiol 50, 200 and 500 μg/kg groups. METHODS： The experiments were carried out in Tongji Medical College, Huazhong University of Science and Technology between October 2005 and March 2006. Bilateral ovaries were only exposed but not resected for the rats in the sham-operated group, but bilateral ovaries were resected in all the other groups. In the ovariectomy＋6-OHDA＋176-estradiol 50, 200 and 500 μg/kg groups, the rats were administrated with intraperitoneal injection of 6-OHDA （8 mg/kg）, and then immediately given 176-estradiol of corresponding dosages respectively, once a day for 10 days continuously. Rats in the sham-operated group and ovariectomy＋6-OHDA＋saline group were administrated with saline of the same volume. After administration, 5 rats in each group were killed to determine the NE contents in bilateral submandibular glands with high performance liquid chromatography-electrochemical detector （HPlC-ECD）, and the other 5 rats were used to determine the TNF levels in submandibular glands with enzyme-linked immunosorbant assay. MAIN OUTCOME MEASURES： The

关键词： Changes of norepinephrine and tumor necrosis factor in submandibular gland of rats with sympathetic nerve injury and the protective effect of 17 beta-estradiol NGF

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Elucidating galaxy assembly bias in SDSS

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Science China(Physics,Mechanics & Astronomy) 2022年第10期65卷 130-150页

作者： Andres N.Salcedo Ying Zu Youcai Zhang Huiyuan Wang Xiaohu Yang Yiheng Wu Yipeng Jing houjun Mo David HWeinberg Department of Astronomy and Center for Cosmology and AstroParticle Physics The Ohio State UniversityColumbus OH 43210USA Department of Astronomy School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Shanghai Key laboratory for Particle Physics and Cosmology Shanghai Jiao Tong UniversityShanghai 200240China Key laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryShanghai 200030China CAS Key laboratory for Research in Galaxies and Cosmology Department of AstronomyUniversity of Science and Technology of ChinaHefei 230026China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China Tsung-Dao lee Institute Shanghai Jiao Tong UniversityShanghai 200240China Department of Astronomy University of Massachusetts AmherstAmherst MA 01003USA

We investigate the level of galaxy assembly bias in the Sloan Digital Sky Survey (SDSS) main galaxy sample using ElUCID,a state-of-the-art constrained simulation that accurately reconstructed the initial density perturbations within the SDSS *** top of the ElUCID haloes,we develop an extended HOD model that includes the assembly bias of central and satellite galaxies,parameterized as Q_(cen)and Q_(sat),respectively,to predict a suite of one-and two-point *** particular,our fiducial constraint employs the probability distribution of the galaxy number counts measured on 8 h^(-1)Mpc scales N_8^(g) and the projected cross-correlation functions of quintiles of galaxies selected by N_(8)^(g) with our entire galaxy *** perform extensive tests of the efficacy of our method by fitting the same observables to mock data using both constrained and non-constrained *** discover that in many cases the level of cosmic variance between the two simulations can produce biased constraints that lead to an erroneous detection of galaxy assembly bias if the non-constrained simulation is *** applying our method to the SDSS data,the ElUCID reconstruction effectively removes an otherwise strong degeneracy between cosmic variance and galaxy assembly bias in SDSS,enabling us to derive an accurate and stringent constraint on the *** fiducial ElUCID constraint,for galaxies above a stellar mass threshold M_(*)=10^(10.2)h^(-2)M_(⊙),is Q_(cen)=-0.09±0.05 and Q_(sat)=0.09±0.10,indicating no evidence for a significant (>2σ) galaxy assembly bias in the local Universe probed by ***,our method provides a promising path to the robust modelling of the galaxy-halo connection within future surveys like DESI and PFS.

关键词： spatial distribution of galaxies large scale structure of the Universe numerical simulation

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Spectral properties of Fermi/GBM gamma-ray bursts and the GeV emission detection rate with Fermi/lAT

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Science China(Physics,Mechanics & Astronomy) 2010年第S1期53卷 73-77页

作者： lV houjun,lIANG EnWei & TONG XiaoFeng Department of Physics,Guangxi University,Nanning 530004,China Department of Physics Guangxi University Nanning China

With a sample of 58 Fermi/GBM GRBs detected before 2009 May,we compare the spectral properties of GBM GRBs with those detected by CGRO/BTASE and *** results show that the spectral index distributions are very consistent with those observed by ***,the Ep distribution is quite different from that observed with BATSE and *** GBM GRBs tend to be softer than the BATSE sample,but harder than the HETE-2 *** may be due to the instrumental selection effects and artificial sample effect on the BATSE *** distribution of the pseudo redshifts derived from the luminosity indicator based on the Amati-relation shows rough consistency with the spectroscopic redshifts of Swift *** estimate the detection rate of GBM GRBs with lAT based on the observed spectrum in the GBM band,and the inferred burst ratio of lAT detection with over 5 photons to GBM detection is 6%,yielding a detection rate pf 12 GRBs/yr with over 5 photons in the 1-300 GeV *** is roughly consistent with the results in the first half year of Fermi *** low detection rate compared with theoretical predictions is a key for revealing the radiation mechanisms and particle acceleration of the prompt gamma-rays.

关键词： gamma-ray bursts high energy phenomenon spectrum statistics

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Telomerase Activity in Condyloma Acuminatum Tissue with Different HPV Types

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Journal of Huazhong University of Science and Technology(Medical Sciences) 2002年第2期22卷 171-173页

作者： TU Yating (涂亚庭) CHEN Shanjuan(陈善娟) FAN Chao(樊超) lIN Nengxing(林能兴) lIU houjun(刘厚君) lIU Zhixiabg(刘志香) Department of Dermatology Xiehe Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 Department of Dermatology Xiehe Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 Department of Dermatology Xiehe Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 Department of Dermatology Xiehe Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 Department of Dermatology Xiehe Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 Department of Dermatology Xiehe Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022

Summary: The telomerse activity in condyloma acuminatum (CA) tissue with human papillomavirus (HPV) types of 6/11 and 16/18 was detected to investigate the function of telomerase in the occurrence, development and carcinogenesis of genital CA. Forty-two biopsies from patients with gennital CA and 30 control tissue samples were tested for telomerase activity, HPV presence and types. The telomerase activity was determined by modified telomerase repeat amplification protocol (TRAP) assay and HPV typing by polymerase chain reaction (PCR) with typing-specific primers. Results showed that HPV-DNA was negative and the expression rate of telomerase was 16.7 % in all normal skin samples. All CA samples were positive for HPV (6/11 type was found in 32 cases, 16/18 in 3 and mixed type in 7). Telomerase activity was detectable in all CA patients. The telomerase activity in CA of 16/18 type was apparently higher than in CA of 6/11 type. It was concluded that the hyperplasia in CA might be increased as a result of HPV infection, suggesting that the activation of telomerase by HPV, especially by 16/18 type may play a role in the etiology and carcinogenesis of genital CA.

关键词： condyloma acuminatum human papillomavirus telomerase

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Adakite-type sodium-rich rocks in Awulale Mountain of west Tianshan:Significance for the vertical growth of continental crust

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Chinese Science Bulletin 2001年第10期46卷 811-817页

作者： XIONG Xiaolin ZHAO Zhenhua BAI Zhenghua MEI houjun WANG Yixian WANG Qiang XU Jifeng Niu Hecai BAO Zhiwei Guangzhou Institute of Geochemistry Chinese Academy of SciencesGuangzhou 510640China State Key laboratory of Mineral Deposit Research of Nanjing University Nanjing 210093China

The sodium-rich dacites and albite porphyries of Permian in the Awulale Mountain of west Tianshan have unique chemical and trace element signatures identical to adakite. These intermediate-acidic igneous rocks are characterized by high Na2O, Al2O3 and Sr contents and high Sr/Y and la/Y ratios (>40 and >20, respectively), and low Y and Yb contents, and strong depletion in HREE, and positive Eu anomaly. The (143Nd/144Nd)i is in the range from0.51236 to 0.51248 and the εNd(t) is positive value (+0.79-+3.11); the (87Sr/86Sr)i is in the range from 0.7052 to 0.7054. These Nd and Sr isotopic composition features indicate that the source rocks of these adakite-type rocks are from a weakly depleted mantle, or a depleted mantle, but was contaminated by the crustal materials. These adakite-type rocks were most likely derived from the partial melting of new underplated basaltic rocks under the conditions of amphibo-lite to eclogite transition in the postcollisional environment of North Xinjiang during the Permian

关键词： Awulale adakite-type rocks underplating vertical growth of continental crust.

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《文选颜鲍谢诗评》与方回的六朝诗学观

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文艺理论研究 2018年第6期38卷 152-158页

作者：赵厚均华东师范大学中文系

方回《文选颜鲍谢诗评》成书于其晚年,集中体现了他对六朝诗的看法。在选评诸家诗作时,方回乃悬置"建安体法"与"建安风味"为高标。建安诗以"散义胜偶句,叙情胜述景"的体法所形成的"气韵高古,而音节华畅""驰骋痛快"的诗歌风貌,为颜鲍谢... 详细信息

方回《文选颜鲍谢诗评》成书于其晚年,集中体现了他对六朝诗的看法。在选评诸家诗作时,方回乃悬置"建安体法"与"建安风味"为高标。建安诗以"散义胜偶句,叙情胜述景"的体法所形成的"气韵高古,而音节华畅""驰骋痛快"的诗歌风貌,为颜鲍谢诸家所不及。由是,谢灵运之"艳过于工"、颜延之之"雕缋满眼"、谢朓之"太工太巧",均在被批评之列。方回对颜鲍谢诸人不是一味否定,也激赏其自然天成、富于意趣的作品;赞许他们对唐宋人创作的积极影响,进而从江西诗法的角度梳理诸人作品在章法、句法和字法上的特色,肯定诸家在诗运转关之际所作出的种种成就。这也显现了方回企图矫正江湖、四灵诗派颓俗卑弱的诗风,从而重振江西诗派旗帜的目的。方回还在其他著述中表现出了对陶渊明的偏爱,与此书一道共同构建了其六朝诗学观。

关键词：方回建安体法建安风味新体诗江西诗法陶渊明

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Chinese Science Bulletin 2001年第15期46卷 1312-1316页

作者： Jifeng Xu houjun Mei Xueyuan Yu Zhenghua Bai Hecai Niu Fanrong Chen Zuoping Zhen Qiang Wang Chinese Acad Sci Guangzhou Inst Geochem Guangzhou 510640 Peoples R China

Volcanic rocks with adakitic compositional signature have been recognized in the northern margin of ancient Junggar island arc for the late Paleozoic. These adakites for the early Devonian from the Tuoranggekudouke Group (D1t) are characteristic of high Sr, Sr/Y and (la/Yb)N but low Y, Yb and HREE. Their compositional characteristics are much similar to those of the typical adakites in the world but distinct from those of the normal arc volcanic rocks from the same Group. We conclude that these adakitic volcanic rocks were produced by slab melting during the early period of Paleoasia-ocean lithosphere subduction. This infers that the Paleoasia Ocean in the north Junggar area began a new subduction process in the early Devonian.

关键词： adakite volcanic rocks Paleoasia Ocean subduction Junggar Xinjiang.

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基于输出电压和电源电流协同分析的故障诊断方法

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仪器仪表学报 2013年第8期34卷 1872-1878页

作者：马岚王厚军电子科技大学自动化工程学院成都611731

提出了基于输出电压和电源电流协同分析的模拟电路故障诊断新方法。由于不同故障对输出电压和电源电流谐波频谱的幅度和相位的敏感程度不同,因此使用该方法可以有效地检测到灾难型故障和参数型故障,并且该方法对传统方法无法检测的时延... 详细信息

提出了基于输出电压和电源电流协同分析的模拟电路故障诊断新方法。由于不同故障对输出电压和电源电流谐波频谱的幅度和相位的敏感程度不同,因此使用该方法可以有效地检测到灾难型故障和参数型故障,并且该方法对传统方法无法检测的时延类故障依然有效,在协同分析过程中分别采用欧式距离和马氏距离作为灾难型故障和参数型故障检测的判别依据,并且文中分析了由于输入激励不同、分析谐波次数不同所导致的故障覆盖率问题。与基于输出电压的分析方法相比,基于输出电压和电源电流协同分析的方法具有更高的故障覆盖率。

关键词：模拟电路灾难型故障参数型故障欧式距离马氏距离

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