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Planning and construction of Xiong’an New Area(city of over 5 million people):Contributions of China’s geologists and urban geology

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China Geology 2024年第3期7卷 382-408页

作者： bo Han Zhen ma Liang-jun Lin Hong-wei Liu Yi-hang Gao Yu-bo Xia Hai-tao Li Xu Guo Feng ma Yu-shan Wang Ya-long Zhou Hong-qiang Li Tianjin Center China Geological Survey(North China Center of Geoscience Innovation)Ministry of Natural ResourcesTianjin 300170China Xiong’an Urban Geological Research Center China Geological SurveyMinistry of Natural ResourcesTianjin 300170China Tianjin Key Laboratory of Coast Geological Processes and environmental Safety Tianjin 300170China China Institute of Geo-environment Monitoring Beijing 100081China Institute of Hydrogeology and environmental Geology Chinese Academy of Geological SciencesShijiazhuang 050061China Center for Hydrogeology and environmental Geology China Geological SurveyMinistry of Natural ResourcesBaoding 071051China Institute of Geophysical&Geochemical Exploration Chinese Academy of Geological SciencesLangfang 065000China Chinese Academy of Geological Sciences Beijing 10037China

China established Xiong’an New Area in Hebei Province in 2017,which is planned to accommodate about 5 million people,aiming to relieve Beijing City of the functions non-essential to its role as China’s capital and to expedite the coordinated development of the Beijing-Tianjin-Hebei *** 2017 to 2021,the China Geological Survey(CGS)took the lead in multi-factor urban geological surveys involving space,resources,environments,and disasters according to the general requirements of“global vision,international standards,distinctive Chinese features,and future-oriented goals”in Xiong’an New Area,identifying the engineering geologic conditions and geologic environmental challenges of this *** achievements also include a 3D engineering geological structure model for the whole area,along with“one city proper and five clusters”,insights into the ecology and the background endowment of natural resources like land,geothermal resources,groundwater,and wetland of the area before engineering construction,a comprehensive monitoring network of resources and environments in the area,and the“Transparent Xiong’an”geological information platform that is open,shared,dynamically updated,and three-dimensionally ***’s geologists and urban geology have played a significant role in the urban planning and construction of Xiong’an New Area,providing whole-process geological solutions for urban planning,construction,operation and *** future urban construction of Xiong’an New Area will necessitate the theoretical and technical support of earth system science(ESS)from various aspects,and the purpose is to enhance the resilience of the new type of city and to provide support for the green,low-carbon,and sustainable development of this area.

关键词： Low Carbon New City Planning and construction Land Geothermal resources Groundwater Wetland Underground space Geologic disasters Site stability Natural resource Ecosystem Geological safety Transparent Xiong’an Resilient city Xiong’an New Area

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基于mtDNA COI基因序列的盐肤木种群遗传变异

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山西大学学报(自然科学版) 2011年第1期34卷 127-130页

作者：安淼马恩波任竹梅山西大学生命科学学院山西大学应用生物学研究所

基于mtDNA COI基因序列对贵州、湖北和四川的盐肤木(Rhus chinensis Mill.)种群进行遗传变异分析.研究共测得盐肤木9个种群50个个体的mtDNA COI基因长度为1.37kb的序列,在测得的序列中有3个核苷酸位点存在变异(占所测核苷酸序列的0.22%... 详细信息

基于mtDNA COI基因序列对贵州、湖北和四川的盐肤木(Rhus chinensis Mill.)种群进行遗传变异分析.研究共测得盐肤木9个种群50个个体的mtDNA COI基因长度为1.37kb的序列,在测得的序列中有3个核苷酸位点存在变异(占所测核苷酸序列的0.22%),T、C、A、G 4种核苷酸的组成分别为34.1%、21.8%、22.5%、21.6%,其中A+T含量(56.6%)高于G+C含量(43.4%).共检测到3个单倍型(HapA、HapB和HapC),HapA出现在所有种群中,是出现频率最高的单倍型,占所测序列的90%,该单倍型可能是祖先单倍型;HapB由安县的1个个体和竹山的3个个体共享,而HapC只存在于榕江的1个个体.分析表明盐肤木种群具低水平单倍型多样性(0.000 2)和核苷酸多样性(0.187 0),基于该基因序列的盐肤木种群间遗传多样性和遗传分化均较小.

关键词：盐肤木 mtDNA COI基因序列遗传变异

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Design of IoT-based Volatile Organic Compounds Monitoring System

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Journal of Electronic Research and Application 2024年第3期8卷 161-171页

作者： bo Wang Minghao ma School of Mechanical and Electrical engineering Shaanxi University of Science and TechnologyXi’an 710021Shaanxi ProvinceChina

Volatile organic compounds(VOC)gas detection devices based on semiconductor sensors have become a common method due to their low cost,simple principle,and small ***,with the continuous development of materials science,various new materials have been applied in the fabrication of gas sensors,but these new materials have more stringent requirements for operating temperature,which cannot be met by existing sensor modules on the ***,this paper proposes a temperature-adjustable sensor module and designs an environmental monitoring system based on the STM32F103RET6 *** system primarily utilizes multiple semiconductor gas sensors to monitor and record the concentrations of various harmful gases in different *** can also monitor real-time temperature,humidity,and latitude and longitude in the current environment,and upload the data to the Internet of Things via 4G *** system has the advantages of small size,portability,and low *** results show that the sensor module can achieve precise control of operating temperature to a certain extent,with an average temperature error of approximately 3%.The monitoring system demonstrates a certain level of accuracy in detecting target gases and can promptly upload the data to a cloud platform for storage and processing.A comparison with professional testing equipment shows that the sensitivity curves of each sensor exhibit *** study provides engineering and technical references for the application of VOC gas sensors.

关键词： Sensors IoT environmental monitoring VOC sensor STM32F103RET6

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Identi?cation and Analysis of the Intermediates from Photodegradation of 3,3′-diamino-4,4′-azoxyfurazan (DAAF)by SERS and HPLC–MS/MS

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Journal of Analysis and Testing 2024年第3期8卷 351-360页

作者： Qi Wu Zhenqi Zhang Wenxu Zheng Juan Li Nan ma Rui Li bo Yang Weimiao Wang Xiaodong Li Meikun Fan Faculty of Geosciences and environmental engineering Southwest Jiaotong University Institute of Chemical materials China Academy of Engineering Physics College of materials and energy South China Agricultural University Southwest University of Science and Technology

Understanding the structural changes and degradation mechanisms of organic pollutants is critical in environmental *** this work, a xenon lamp was used as an analog light source to simulate the eff ect of sunlight on 3,3′-diamino-4,4′-azoxyfurazan (DAAF) in aqueous solution. Combining high-performance liquid chromatography coupled with tandem mass spectrometry (HPLC–MS/MS), surface-enhanced Raman spectroscopy (SERS) with density functional theory (DFT), the degradation intermediates and mechanisms of DAAF were investigated. The sequential breakdown of the–NH 2and–O–N=bonds, followed by the removal of atomic O from–N=N(O)–, was emphasized and investigated using two-dimensional correlation spectroscopy (2D-COS) and SERS spectra. Three intermediates with mass-to-charge ratios (m/z) 181, 251 and180 were identifi ed and characterized by integrating experimental SERS data with DFT-calculated Raman spectra based on structures hypothesized from MS spectra. The fi ndings from HPLC–MS and SERS not only corroborate each other but also provide a foundation for a detailed examination of the DAAF degradation process.

关键词： DAAF High-performance liquid chromatography coupled with tandem mass spectrometry (HPLC–MS/MS) Photodegradation products Reaction pathways Surface-enhanced Raman spectroscopy (SERS)

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Zircon U-Pb ages in the Nuratau ophiolitic mélange in the southern Tianshan,Uzbekistan:Implication for the closure of Paleo-Asian Ocean

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China Geology 2024年第2期7卷 365-368,I0004-I0007页

作者： Kai Weng Ji-fei Cao Divayev-Farid Karibovich Jahongir-Jurabekovich Movlanov bo Chen Zhong-ping ma Xi’an Center of Geological Survey China Geological SurveyXi’an 710119China The Center for Geoinnovation Technologies Doctor of Sciences in Geology and Mineralogy University of Geological ScienceTashkent 100060Uzbekistan

*** The Central Asian Orogenic Belt(CAOB),which is located between the European craton,Siberian craton,and Tarim-North China craton(Fig.1a),is the largest phanerozoic accretionary orogen in the *** resulted from the longterm subduction and accretion of the Paleo-Asian Ocean(PAO).The PAO has been in existence since at least the late Mesoproterozoic(about 1020 ma).However,there has been debate about the closing time of the PAO.

关键词： Asian Paleo Tianshan

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Perioperative outcomes of transvaginal specimen extraction laparoscopic total gastrectomy and conventional laparoscopicassisted total gastrectomy

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World Journal of Gastrointestinal Surgery 2024年第6期16卷 1527-1536页

作者： Zhi-Cao Zhang Wen-Sheng Wang Jiang-Hong Chen Yuan-Hang ma Qi-Fa Luo Yun-bo Li Yang Yang Dan ma Department of General Surgery Xinqiao Hospital of Army Medical UniversityChongqing 400037China

BACKGROUND Natural orifice specimen extraction surgery(NOSES)has emerged as a promising alternative compared to conventional laparoscopic-assisted total gastrectomy(LATG)for treating gastric cancer(GC).However,evidence regarding the efficacy and safety of NOSES for GC surgery is *** study aimed to compare the safety and feasibility,in addition to postoperative complications of NOSES and *** Dual circular staplers were used in Roux-en-Y digestive tract reconstruction for transvaginal specimen extraction LATG,and its outcomes were compared with LATG in a cohort of 51 GC patients with tumor size≤5 *** study was conducted from may 2018 to September 2020,and patients were categorized into the NOSES group(n=22)and LATG group(n=29).Perioperative parameters were compared and analyzed,including patient and tumor characteristics,postoperative outcomes,and anastomosis-related complications,postoperative hospital stay,the length of abdominal incision,difference in tumor type,postoperative complications,and postoperative *** Postoperative exhaust time,operation duration,mean postoperative hospital stay,length of abdominal incision,number of specific staplers used,and Brief Illness Perception Questionnaire score were significant in both groups(Pength of abdominal incision were significantly shorter than those in the LATG *** in the NOSES group had faster postoperative recovery,and achieved abdominal minimally invasive incision that met aesthetic *** were no significant differences in gender,age,tumor type,postoperative complications,and postoperative survival between the two *** The application of dual circular staplers in Roux-en-Y digestive tract reconstruction combined with NOSES gastrectomy is safe and *** approach offers better short-term outcomes compared to LATG,while long-term survival

关键词： Gastric cancer Circular stapler Natural orifice specimen extraction surgery Laparoscopic-assisted total gastrectomy

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Genesis of the Nuri Cu-W-Mo Deposit,Tibet,China:Constraints from in situ Trace Elements and Sr Isotopic Analysis of Scheelite

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Acta Geologica Sinica(english Edition) 2024年第1期98卷 117-131页

作者： WANG Yiyun WU Zhishan CHen Wenqing DU Qing’an TANG Liwei SHI Hongzhao ma Guotao ZHANG Zhi LIANG Wei WU bo MIAO Hengyi Chengdu Center China Geological Survey(Geoscience Innovation Center of Southwest China)Chengdu 610081China The Second Geological Institute of China’s Metallurgical Geology Bureau Fuzhou 351111China

The Nuri deposit is the only Cu-W-Mo polymetallic deposit with large-scale WO3 resources in the eastern section of the Gangdese metallogenic belt,Tibet,***,the genetic type of this deposit has been controversial since its *** on a study of the geological characteristics of the deposit,this study presents mineralization stages,focusing on the oxide stage and the quartz-sulfide stage where scheelite is mainly formed,referred to as Sch-A and Sch-B,*** LA-ICP-MS trace element and Sr isotope analyses,the origin,evolutionary process of the oreforming fluid and genesis of the ore deposit are *** Electron Microscope-Cathodoluminescence(SEMCL)observations reveal that Sch-A consists of three generations,with dark gray homogenous Sch-A1 being replaced by relatively lighter and homogeneous Sch-A2 and Sch-A3,with Sch-A2 displaying a gray CL image color with vague and uneven growth bands and Sch-A3 has a light gray CL image color with hardly any growth *** contrast,Sch-B exhibits a‘core-rim’structure,with the core part(Sch-B1)being dark gray and displaying a uniform growth band,while the rim part(Sch-B2)is light gray and *** normalized distribution pattern of rare earth elements in scheelite and Sr isotope data suggest that the early ore-forming fluid in the Nuri deposit originated from granodiorite porphyry and,later on,some country rock material was mixed in,due to strong water-rock *** the O-H isotope data further indicates that the ore-forming fluid in the Nuri deposit originated from magmatic-hydrothermal sources,with contributions from metamorphic water caused by water-rock interaction during the mineralization process,as well as later meteoric *** intense water-rock interaction likely played a crucial role in the precipitation of scheelite,leading to varying Eu anomalies in different generations of scheelite from the oxide stage to the quartz-sulfide stage,while also causing a

关键词： trace elements in situ Sr isotopes tungsten mineralization Gangdese metallogenic belt Tibet

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Opportunities for production and property research of neutron-rich nuclei around N=126 at HIAF

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Nuclear Science and Techniques 2024年第6期35卷 101-113页

作者： Shao-bo ma Li-Na Sheng Xue-Heng Zhang Shi-Tao Wang Kai-Long Wang Chun-Wang ma Hool-Jin Ong Zhi-Yu Sun Shu-Wen Tang Yu-Hong Yu Xin-Tong Du Xiao-Bao Wei Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Advanced energy Science and Technology Guangdong Laboratory Huizhou 516000China University of Chinese Academy of Sciences Beijing 100049China College of Physics Henan Normal UniversityXinxiang 453007China Institute of Nuclear Science and Technology Henan Academy of ScienceZhengzhou 450046China Joint-Department for Nuclear Physics Lanzhou University and Institute of Modern PhysicsLanzhou 730000China Research Center for Nuclear Physics Osaka UniversityOsaka 567-0047Japan RIKen Nishina Center Saitama 351-0198Japan Northwest Normal University Lanzhou 730070China

The study of nuclide production and its properties in the N=126 neutron-rich region is prevalent in nuclear physics and astrophysics *** upcoming High-energy FRagment Separator(HFRS)at the High-Intensity heavy-ion Accelerator Facility(HIAF),an in-flight separator at relativistic energies,is characterized by high beam intensity,large ion-optical acceptance,high magnetic rigidity,and high momentum resolution *** provides an opportunity to study the production and properties of neutron-rich nuclei around N=*** this paper,an experimental scheme is proposed to produce neutron-rich nuclei around N=126 and simultaneously measure their mass and lifetime based on the HFRS separator;the feasibility of this scheme is evaluated through *** results show that under the high-resolution optical mode,many new neutron-rich nuclei approaching the r-process abundance peak around A=195 can be produced for the first time,and many nuclei with unknown masses and lifetimes can be produced with high *** the time-of-flight corrected by the measured dispersive position and energy loss information,the cocktails produced from 208 Pb fragmentation can be unambiguously ***,the masses of some neutron-rich nuclei near N=126 can be measured with high precision using the time-of-flight magnetic rigidity *** indicates that the HIAF-HFRS facility has the potential for the production and property research of neutron-rich nuclei around N=126,which is of great significance for expanding the chart of nuclides,developing nuclear theories,and understanding the origin of heavy elements in the universe.

关键词： HFRS Fragmentation Neutron-rich nuclei around N=126 mass measurement Lifetime

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基于形态特征和mtDNA COI序列的北美五倍子蚜分类和系统发育地位研究

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昆虫学报 2011年第5期54卷 575-581页

作者：庞雅文马恩波任竹梅山西大学生命科学学院太原030006 山西大学应用生物学研究所太原030006

五倍子蚜共6属12种,除北美分布1属1种外,其余分布东亚。本研究采用数值分类和分子系统发育分析方法对北美五倍子蚜Melaphis rhois的形态特点和分类地位进行研究,以倍蚜6属8种179个有翅孤雌蚜为研究对象,对其头部、胸部、腹部的直接测量... 详细信息

五倍子蚜共6属12种,除北美分布1属1种外,其余分布东亚。本研究采用数值分类和分子系统发育分析方法对北美五倍子蚜Melaphis rhois的形态特点和分类地位进行研究,以倍蚜6属8种179个有翅孤雌蚜为研究对象,对其头部、胸部、腹部的直接测量特征48个、量度间比例特征31个及转化为数值的描述特征29个共108个特征进行分析。基于欧氏距离的聚类结果显示,北美倍蚜***与倍蚜属关系较近,五倍子蚜8个种共形成3个大的聚类簇,北美倍蚜***与倍蚜属的倍蛋蚜Schlechtendalia peitan和角倍蚜***聚为一支;铁倍蚜属的肚倍蚜蛋铁亚种Kaburagia rhusicola ovogallis和肚倍蚜枣铁亚种*** ensigallis与小铁枣蚜属的红小铁枣蚜Meitanaphiselongallis、圆角倍蚜属的倍花蚜Nurudea shiraii和红倍花蚜***与铁倍花蚜属的铁倍花蚜Floraphis meitanensis分别聚为一支。另外,测定五倍子蚜8个种共16个样本的mtDNA COI基因序列(约1.2 kb),最大简约法(maximumparsimony,MP)和最大似然法(maximum likelihood,ML)分子系统发育分析结果均显示北美倍蚜***与倍蚜属的关系密切,和形态数据得到的结果一致;但倍蚜8个种之间的聚类总体上与形态学研究结果不太一致,铁倍花蚜属的铁倍花蚜和小铁枣蚜属的红小铁枣蚜、铁倍蚜属的肚倍蚜枣铁亚种和肚倍蚜蛋铁亚种与圆角倍蚜属的倍花蚜和红倍花蚜分别聚为一支,彼此之间的关系尚需深入研究。

关键词：五倍子蚜北美倍蚜数值分类 COI基因序列系统发育

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A Transfer Learning Framework for Deep Multi-Agent Reinforcement Learning

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IEEE/CAA Journal of Automatica Sinica 2024年第11期11卷 2346-2348页

作者： Yi Liu Xiang Wu Yuming bo Jiacun Wang Lifeng ma the School of Automation Nanjing University of Science and Technology the Department of Computer Science and Software engineering Monmouth University

Dear Editor,This letter presents a new transfer learning framework for the deep multi-agent reinforcement learning(DmaRL) to reduce the convergence difficulty and training time when applying DmaRL to a new scenario [1...

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