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Extensive carbon cycle between peatland and vegetation:Insights from high net primary productivity of the Middle Jurassic in northwestern China

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Journal of Palaeogeography 2024年第4期13卷 1016-1028页

作者： Yang-Yang Huang Hao Liang Long-Yi Shao Bin Yang Baruch Spiro Jia-Min Zhou Jing lu Tan-Guang Fan State Key Laboratory for Fine Exploration and Inteligent Development of Coal Resources Bejing 100083China College of Geoscience and Surveying Engineering China University of Mining and Technology(Bejing)Bejing 100083China Research Institute of Exploration&Development PetroChina Tuha Oilfield CompanyHami 839009China Exploration Company PetroChina Tuha Oilfield CompanyHami 839009China Department of Earth Sciences Natural History MuseumLondon SW75BDUK School of Marine Sciences University of Haifa Mount Carmel HaifaIsrael

Peatlands have obvious carbon storage capacity and are crucial in mitigating global climate *** the end-product of peatlands,coals have preserved a large amount of palaeoenvironmental *** carbon accumulation rate and the net primary productivity(NPP)of coal-forming peatlands can be used as proxies for recovering palaeoenvironments.A super-thick coal seam(42°35'N,91°25'E)was developed in the Middle Jurassic Xishanyao Formation in the Shaerhu coalfield in the southern margin of the Tuha(Turpan-Hami)Basin,northwestern *** this study,we use the time series analysis to identify the periods of Milankovitch orbital cycles in the Gamma-ray curve of this super-thick(124.85 m)coal and then use the obtained cycle periods of 405 ka,173 ka,44 ka,37.6 ka,22.5 ka to calculate the timeframe of the coalforming peatlands which ranges from 2703.44 to 2975.11 *** that the carbon content of the coal seam is 78.32%and the carbon loss during the coalification is about 25.80%,the carbon accumulation rate of the targeted coal seam is estimated to be 58.47-64.34 g C/m^(2)·a,and the NPP is estimated to be252.28-277.63 g C/m^(2)·*** main palaeoenvironmental factors controlling the NPP of peatlands are CO_(2)content,palaeolatitude and *** reduced NPP values of the palaeo-peatlands in the Shaerhu coalfield can be attributed to the mid-palaeolatitude and/or too low atmospheric CO_(2)*** a certain extent,the NPP of palaeo-peatlands reflects the changes in atmospheric CO_(2),which can further reveal the dynamic response of the global carbon cycle to climate ***,predicting the level of NPP in the Middle Jurassic and studying the final destination of carbon in the ecosystem are beneficial to understanding the coal-forming process and palaeoenvironment.

关键词： Xishanyao Formation Super-thick coal Milankovitch cycle Carbon accumulation rate Carbon cycle

Late Quaternary Slip Behavior of the Jinqianghe Fault in the Middle Qilian-Haiyuan Fault Zone,Northeastern Tibetan Plateau

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Acta Geologica Sinica(English Edition) 2022年第3期96卷 825-843页

作者： LIANG Shumin ZHENG Wenjun CHEN Gan ZHANG Peizhen ZHANG Dongli BI Haiyun YANG Xue ZHANG Yipeng DUAN Lei lu Bentian Guangdong Provincial Key Laboratory of Geodynamics and Geohazards School of Earth Sciences and EngineeringSun Yat–sen UniversityGuangzhou 510275China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) ZhuhaiGuangdong 519082China State Key Laboratory for Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing 100029China

The Qilian-Haiyuan fault zone in the northeastern Tibetan Plateau has been the source of strong earthquakes in the *** its middle segment,the Jinqianghe fault is an important active fault within the Tianzhu seismic gap;however,little is known about its slip *** present a new horizontal displacement distribution along this fault,we used WorldView-2 stereo pairs and unmanned aerial vehicle-based photogrammetry to construct digital elevation models to obtain a detailed tectono-geomorphic interpretation and geomorphic *** offset marker measurements yielded 135 geomorphic displacements and 8 offset *** dating was used to establish the regional age sequence of the geomorphic units in offset fluvial terraces at four study *** displacements and ages linked the offset clusters with the geomorphic unit sequence;the Holocene strike-slip rate of the Jinqianghe fault was estimated to 4.8-5.6 mm/a at~4-12 ka and 2.9-4.7 mm/a from~4 *** recent earthquakes(with a recurrence interval of~1000 years)represent an active seismic period,revealing the potential seismic hazard along this fault because it has not ruptured in the last 1500 years.

关键词： remote sensing offset geomorphology cumulative offset distribution Qilian-Haiyuan fault zone

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多尼培南的药理和临床研究

中国新药杂志 2007年第5期16卷 414-416页

作者：彭卡杨秀珍陆怡上海新药研究开发中心上海201203

多尼培南(doripenem,S-4661)是新型碳青霉烯类抗生素,抗菌谱广,抗菌活性强,对多种G+和G-菌均有很强的抗菌活性。现对其作用机制、抗菌活性、药动学、临床应用及药物不良反应做一综述。

关键词：多尼培南药理作用临床研究

不同HCV感染途径HBV／HCV重叠感染患者临床差异分析

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中华实验和临床病毒学杂志 2011年第4期25卷 301-303页

作者：张卡曹红杨小安洪晓绿陈禄彪舒欣李刚徐启桓中山大学附属第三医院感染科广州510630

目的了解不同HCV感染途径HBV/HCV重叠感染患者临床特征的差异。方法回顾分析我院1999年5月至2010年5月间HCV和HBV重叠感染具有明确HCV感染途径的患者总133例；利用SPSS16.0软件，统计分析不同HCV感染途径HBV/HCV重叠感染患者的人口学... 详细信息

目的了解不同HCV感染途径HBV/HCV重叠感染患者临床特征的差异。方法回顾分析我院1999年5月至2010年5月间HCV和HBV重叠感染具有明确HCV感染途径的患者总133例；利用SPSS16.0软件，统计分析不同HCV感染途径HBV/HCV重叠感染患者的人口学、病毒学和生化学等指标。结果 133例患者中，78例患者因静脉吸毒感染HCV（ 1DU），55例因输血感染HCV（PTCH）。IDU重叠感染患者与PTCH重叠感染患者相比，具有发病年龄较小、HBV和HCV感染病史较短和肝硬化比率低（P＜0.05）；但是IDU重叠感染患者体内ALT（t=4.760，P=0.000）、AST（t =3.798，P=0.000）和TBil（t =4.274，P=0.000）水平比PTCH重叠感染患者明显升高。两组患者的性别构成比率不同（X^2= 18.706，P=0.000）。结论输血后感染HCV患者和静脉吸毒感染HCV患者临床特征存在明显差异。输血后感染丙肝患者具有发病较晚、肝硬化较多和肝损伤较轻特点；而静脉吸毒感染丙肝患者具有发病年龄早和肝损伤较重等特点。

关键词：肝炎乙型慢性肝硬化肝炎病毒感染

Orbital and Millennial-Scale Climate Variability over the Past 76 ka in the Western Tarim Basin, Northwest China

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Journal of Earth Science 2023年第1期34卷 173-180页

作者： Rui Zhang Qiuzhen Yin Weihua Nai Zhixiang Wang Hao lu Chunju Huang Yansheng Gu Lin Li Yusong Wang Linjing Liu College of Urban and Environmental Sciences Hubei Normal UniversityHuangshi435002China State Key Laboratory of Biogeology and Environmental Geology School of Earth SciencesChina University of GeosciencesWuhan430074China Georges Lemaître Centre for Earth and Climate Research Earth and Life InstituteUniversitéCatholique de LouvainLouvain-La-Neuve1348Belgium No.2 Hydrological and Engineering Geology Party of Xinjiang Bureau of Geology and Mineral Resources Exploration and Development Changji831100China Hubei Key Laboratory of Critical Zone Evolution School of Earth SciencesChina University of GeosciencesWuhan430074China Hubei Key Laboratory of Wetland Evolution&Eco-Restoration(WEER) China University of GeosciencesWuhan430074China School of Environmental Studies China University of GeosciencesWuhan430074China Institute of Hydrogeology and Environmental Geology Chinese Academy of Geological Sciences(CAGS)Shijiazhuang050061China

Paleoclimate changes during the last glacial in the arid central Asia are not as well understood as the monsoon-dominated areas of Asia. Here we report a 75-m-long sediment core over past 120 kyr based on astronomical tuning combined with the optically stimulated luminescence(OSL) dating in the kashi depression of the western Tarim Basin, Northwest China. Analysis of grain size and highresolution gamma ray(GR) logs from the KT11 borehole across the last glacial period yields a climate history for the Tarim Basin which reflects the variations of its temperature and the hydrological cycles. Comparison of these records with north hemisphere summer insolation, the Greenland ice core temperature, stalagmites and the loess from the nearby region indicates that the deposits in the fluvio-lacustrine system of the kashi depression responded to climate change at the Younger Dryas(YD), six Heinrich cooling events and the Dansgaard-Oeschger cycles. Our work indicates that the alternations between warm-humid and cold-dry climates were prevalent in the western Tarim Basin during the last glacial period, showing an in-phase pattern with the climate variations of the East Asian Monsoon, controlled ultimately by precession and North Atlantic Ocean climate variability on orbital-millennial time scales.

关键词： abrupt climate changes glacial geology last glacial period KT11 borehole western Tarim Basin

Structure and magnetic properties of TbCu_7-type melt-spun Sm–Fe–B alloys

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Rare Metals 2019年第2期38卷 151-156页

作者： Chuan-Jiang Zheng Yang luo Dun-Bo Yu Wen-Long Yan Hong-Wei Li Yong-Jun Mao Shuo lu Ning-Tao Quan National Engineering Research Center for Rare Earth Materials General Research Institute for Nonferrous Metals Grirem Advanced Materials Co. Ltd.

The melt-spun SmFe_(12)B_x(x = 0, 0.50, 0.75,1.00, 1.25 and 1.50) ribbons were prepared at 40 m·s^(-1),and their structure and magnetic properties were studied by powder X-ray diffraction(XRD), vibrating sample magnetometer(VSM) and transmission electron microscopy(TEM). XRD results indicate that SmFe_(12)B_x alloys with 0.50 ≤ x ≤ 1.00 are composed of single-phase TbCu_7-type structure. Moreover, it is found that the boron addition can inhibit the emergence of soft magnetic phase a-Fe and result in the increase in the axial ratio c/a. After annealing at 650 ℃ for 0.5 h, the metastable phase TbCu_7 initially decomposes into the stable phase Sm_2Fe_(14)B(Nd_2Fe_(14)B-type) and a-Fe. The value of magnetic moment per Fe atom increases slightly from 1.75 uB for boron-free sample to 1.80 uB for the x = 0.75 sample and then decreases *** addition, the best magnetic properties of maximum energy product [(BH)_(max)] of 14.56 kJ·m^(-3), coercivity(H_(cj))of 172.6 ka·m^(-1) and remanence(B_r) of 0.45 T are obtained for the SmFe_(12)B_(1.00) alloy. Based on transmission electron microscopy(TEM) results, the average size of grains is around 197 nm for B-free sample and decreases to 95 nm for x = 1.00 sample, indicating that the addition of boron can refine grains.

关键词： TbCu7-type structure Sm-Fe-B ribbons Phase formation Magnetic moment Microstructure

Hallmarks of peripheral nerve function in bone regeneration

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Bone Research 2023年第1期11卷 47-64页

作者： Ranyang Tao Bobin Mi Yiqiang Hu Sien Lin Yuan Xiong Xuan lu Adriana C.Panayi Gang Li Guohui Liu Department of Orthopaedics Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022P.R.China Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration Wuhan430022P.R.China Department of Orthopaedics&Traumatology Stem Cells and Regenerative Medicine LaboratoryLi Ka Shing Institute of Health SciencesThe Chinese University of Hong KongPrince of Wales HospitalShatinHong KongSAR999077P.R.China Division of Plastic Surgery Brigham and Women’s HospitalHarvard Medical SchoolBoston02215MAUSA

Skeletal tissue is highly *** different types of nerves have been recently identified in the bone,the crosstalk between bone and nerves remains *** this review,we outline the role of the peripheral nervous system(PNS)in bone regeneration following *** first introduce the conserved role of nerves in tissue regeneration in species ranging from amphibians to *** then present the distribution of the PNS in the skeletal system under physiological conditions,fractures,or ***,we summarize the ways in which the PNS communicates with bone-lineage cells,the vasculature,and immune cells in the bone *** on this comprehensive and timely review,we conclude that the PNS regulates bone regeneration through neuropeptides or neurotransmitters and cells in the peripheral *** in-depth understanding of the roles of peripheral nerves in bone regeneration will inform the development of new strategies based on bone-nerve crosstalk in promoting bone repair and regeneration.

关键词： nerves regeneration function

Strategies and challenges for enhancing performance of MXene-based gas sensors:a review

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Rare Metals 2022年第12期41卷 3976-3999页

作者： Hai-Feng Zhang Jing-Yue Xuan Qi Zhang Mei-Ling Sun Fu-Chao Jia Xiao-Mei Wang Guang-Chao Yin Si-Yu lu School of Physics and Optoelectronic Engineering Shandong University of TechnologyZibo 255000China Green Catalysis Center College of ChemistryZhengzhou UniversityZhengzhou 450001China

With the advantages of metal conductivity,large specific surface area,and rich surface functional groups,two-dimensional(2D)MXenes have shown great potential in the field of gas ***,gas sensors fabricated with pristine MXenes generally suffer from several problems such as low sensitivity,poor selectivity,significant baseresistance drift,and poor environment ***,many efforts have been devoted to overcoming these *** this review,we review the progress on MXenebased gas sensors and summarize several efficient strategies(including structural design,surface modification,inorganic Schottky j unction/heterojunction sensitization,polymer addition,and metal-ion intercalation)to promote the gassensing *** addition,the major challenges and future development directions of MXene-based gas sensors are also outlined in the present review.

关键词： MXenes Gas sensors Strategies Gas-sensing performance

人工晶状体前囊膜夹持固定术在白内障手术中的应用

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中国眼耳鼻喉科杂志 2016年第2期16卷 114-115页

作者：赵卡卡卢奕王望晓浙江省东阳市人民医院眼科东阳322100 复旦大学附属眼耳鼻喉科医院眼科上海200031

目的探讨白内障术中光学切除混浊后囊膜联合人工晶状体(IOL)前囊膜夹持植入术的临床效果。方法选取小切口囊外摘除白内障术中发现的后囊膜混浊病例21例(22眼),术中进行混浊后囊膜光学切除+后房型IOL前囊膜夹持植入术。观察手术前后视力... 详细信息

目的探讨白内障术中光学切除混浊后囊膜联合人工晶状体(IOL)前囊膜夹持植入术的临床效果。方法选取小切口囊外摘除白内障术中发现的后囊膜混浊病例21例(22眼),术中进行混浊后囊膜光学切除+后房型IOL前囊膜夹持植入术。观察手术前后视力变化及术后瞳孔、IOL位置等手术效果。结果 22眼手术前后眼压和瞳孔直径变化差异无统计学意义(P>0.05),手术前后最佳矫正视力分别为4.1±4.0和4.9±4.6,术后视力显著提高。裂隙灯检查术后IOL轻度偏心和倾斜各1例。结论小切口白内障囊外摘除术中行混浊后囊膜光学切除联合IOL前囊膜夹持植入术,是后囊膜切除后有效的IOL固定方法。

关键词：白内障人工晶状体后囊膜混浊前囊膜夹持