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Illuminating high-resolution crustal fault zones using multi-scale dense arrays and airgun source

Earthquake Research Advances 2021年第1期1卷 10-18页

作者： Hongfeng Yang Yaohui Duan Junhao Song Weitao wang Wei Yang Xiaofeng Tian baoshan wang Earth System Science Programme Faculty of ScienceThe Chinese University of Hong KongHong KongChina Shenzhen Research Institute The Chinese University of Hong KongShenzhenChina Institute of Geophysics China Earthquake AdministrationBeijingChina Center of Geophysical Exploration China Earthquake AdministrationZhengzhouChina School of Earth and Space Sciences University of Science and Technology of ChinaHefeiChina

High-resolution imaging of fault zone structure and its temporal changes can not only advance our understanding of earthquake physics,but is also critical for better seismic hazard preparation and *** the past a few years,we deployed multi-scale dense arrays across the Chenghai fault system in Binchuan,Yunnan,*** first array consisted of 381 intermediate-period three-component seismometers with an average station spacing of~2 *** array has been deployed in the field for~3 months in 2017 and recorded numerous local and teleseismic *** time analyses based on teleseismic earthquakes and an airgun source in the region indicated clear signature of low-velocity fault zones in the southern branch of the Chenghai fault *** 2018 we deployed two other linear arrays using the same instruments with much smaller inter-station spacing,e.g.30-50 m,across the southern branch the Chenghai *** profile lengths were 8 and 5 km,*** sections of the airgun source on the two linear arrays clearly marked a low-velocity zone(LVZ)within the southern array but no such signature in the northern array,suggesting along-strike variation of the *** the instruments within our dense arrays had an intermediate frequency band,we demonstrated that they were capable of characterizing crustal structure with techniques commonly applied to broadband signals such as receiver *** our best knowledge,this was the first time to have multi-scale across-fault dense arrays with three-component seismometers in such *** results lay out the pavement to comprehensively investigate fault zone structures as well as to derive subsurface structural changes using dense arrays and the airgun source.

关键词： Fault zone Temporal changes Dense array Airgun source

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Protein kinases in plant responses to drought, salt,and cold stress

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Journal of Integrative Plant Biology 2021年第1期63卷 53-78页

作者： Xuexue Chen Yanglin Ding Yongqing Yang Chunpeng Song baoshan wang Shuhua Yang Yan Guo Zhizhong Gong State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural UniversityBeijing 100193China Collaborative Innovation Center of Crop Stress Biology Henan ProvinceInstitute of Plant Stress BiologyHenan UniversityKaifeng 475001China Key Lab of Plant Stress Research College of Life ScienceShandong Normal UniversityJi'nan 250000China Institute of Life Science and Green Development School of Life SciencesHebei UniversityBaoding 071001China

Protein kinases are major players in various signal transduction pathways. Understanding the molecular mechanisms behind plant responses to biotic and abiotic stresses has become critical for developing and breeding climate-resilient crops. In this review,we summarize recent progress on understanding plant drought, salt, and cold stress responses, with a focus on signal perception and transduction by different protein kinases, especially sucrose nonfermenting1(SNF1)-related protein kinases(Sn RKs),mitogen-activated protein kinase(MAPK) cascades,calcium-dependent protein kinases(CDPKs/CPKs),and receptor-like kinases(RLKs). We also discuss future challenges in these research fields.

关键词： CDPKs cold stress drought stress MAPK cascade RLKs salt stress Sn RKs

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A new way to generate seismic waves for continental crustal exploration

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Chinese Science Bulletin 2007年第16期52卷 2264-2268页

作者： CHEN Yong ZHANG XianKang QIU XueLin GE HongKui LIU BaoJin wang baoshan Institute of Geophysics China Earthquake Administration Beijing 100081 China Geophysical Exploration Center China Earthquake Administration Zhengzhou 450002 China CAS Key Laboratory of Marginal Sea Geology South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China

An airgun experiment was conducted in a reservoir,with the total volume of the airgun array being 6000 cubic inch. The energy released by one excitation was estimated to be 6.68×106 J,which corresponded to a 3.4 kg TNT explosion. A 180 km long profile composed of 100 portable short period seismometers was deployed as a receiver system of the airgun signals. Two remarkable results can be drawn from the experiment: (1) the airgun explosion is harmless to the dam and the fish,and this kind of airguns can be regarded as a green and environmental protection seismic source on land; (2) seismic wave gener-ated by this airgun source can be recorded by permanent stations with offset larger than 200 km. And the wave amplitudes recorded by nearby and remote stations are equivalent to the wave generated by 800 kg dynamite explosion. The airguns can be used as a light to illuminate the continental crustal structure of an area of about 100000 km2.

关键词：地震波地壳探测环境保护震源

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人工智能技术在棉花公证检验实验室中的应用

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纺织科技进展 2024年第9期46卷 35-37页

作者：王欢牛贵洋王宝山王娟王永斌杨永波张小建阿克苏地区纤维检验所新疆维吾尔自治区阿克苏843000

人工智能作为新兴的技术,可以为多领域提供更强大、更灵活的智能服务,帮助提质增效、节约成本、优化决策,赋能各行各业数字化转型和创新,对数字经济发展有着重要而深远的影响。人工智能技术的广泛应用,给棉花产业发展带来了难得的机遇,... 详细信息

人工智能作为新兴的技术,可以为多领域提供更强大、更灵活的智能服务,帮助提质增效、节约成本、优化决策,赋能各行各业数字化转型和创新,对数字经济发展有着重要而深远的影响。人工智能技术的广泛应用,给棉花产业发展带来了难得的机遇,为智能化实验室的发展提供了思路。从人工智能应用关键技术中的Agent技术、专家系统、RFID技术及RPA技术4个方面,对人工智能技术在棉花公证检验实验室中的应用前景提出参考性建议。

关键词：棉花公证检验人工智能实验室 Agent技术 RFID技术

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Reactive oxygen species signaling and stomatal movement in plant responses to drought stress and pathogen attack

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Journal of Integrative Plant Biology 2018年第9期60卷 805-826页

作者： Junsheng Qi Chun-Peng Song baoshan wang Jianmin Zhou Jaakko Kangasjarvi Jian-Kang Zhu Zhizhong Gong State Key Laboratory of Plant Physiology and Biochemistry College of Biological SciencesChina Agricultural UniversityBeijing 100193China Collaborative Innovation Center of Crop Stress Biology Henan ProvinceInstitute of Plant Stress BiologyHenan UniversityKaifeng 475001China Key Lab of Plant Stress Research College of Life ScienceShandong Normal UniversityJi'nan 250000China State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Division of Plant Biology Viikki Plant Science CentreDepartment of BiosciencesUniversity of Helsinki00014 HelsinkiFinland Shanghai Center for Plant Stress Biology Shanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai 200032China Department of Horticulture and Landscape Architecture Purdue UniversityWest LafayetteIN 47907USA

Stomata, the pores formed by a pair of guard cells, are the main gateways for water transpiration and photosynthetic CO2 exchange, as well as pathogen invasion in land plants. Guard cell movement is regulated by a combination of environmental factors, including water status, light, CO2 levels and pathogen attack, as well as endogenous signals, such as abscisic acid and apoplastic reactive oxygen species （ROS）. Under abiotic and biotic stress conditions, extracellular ROS are mainly produced by plasma membrane-localized NADPH oxidases, whereas intracellular ROS are produced in multiple organelles. These ROS form a sophisticated cellular signaling network, with the accumulation of apoplastic ROS an early hallmark of stomatal movement. Here, we review recent progress in understanding the molecular mechanisms of the ROS signaling network, primarily during drought stress and pathogen attack. We summarize the roles of apoplastic ROS in regulating stomatal movement, ABA and CO2 signaling, and immunity responses. Finally, we discuss ROS accumulation and communication between organelles and cells. This information provides a conceptual framework for understanding how ROS signaling is integrated with various signaling pathways during plant responses to abiotic and biotic stress stimuli.

关键词： ROS Reactive oxygen species signaling and stomatal movement in plant responses to drought stress and pathogen attack ABA

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Characteristics of the AE Distribution and Triggering Mechanism of a Simulated Meter-Scale Fault after Stick-Slip Events

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Earthquake Research in China 2020年第3期34卷 452-464页

作者： HOU Jinxin XIE Fan REN Yaqiong wang baoshan Key Laboratory of Seismic Observation and Geophysical Imaging Institute of GeophysicsChina Earthquake AdministrationBeijing 100081China School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China

With the more complete acoustic emission(AE)catalog improved by the multi-channel AE matched-filter technique(MFT),we study the spatiotemporal evolution of the AE activities after laboratory stick-slip events incorporate with the slip data recorded by displacement transducers on an^1.5 m granite *** results show that the number of the AE events identified by MFT is about 9 times larger than that of the traditional method.A logarithmic expansion of early AE events along the fault strike is observed as a function of time,whereas the fault does not slip in the same ***,we related the expansion of the early AE events along the fault to the stress transfer caused by the adjacent AE ***,there is a good correlation between the cumulative number of the later AE events and the amount of fault *** suggests that the stress change caused by the continuous slip of the simulated fault after the stick-slip events response for the later AE events near or on the simulated fault.

关键词： Stick-slip Acoustic emission matched-filter technique Spatiotemporal evolution Fault slip

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Regional Scale Seismological Investigation on the Continent Crust Using Airgun Sources——A Perspective Review

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Earthquake Research in China 2018年第3期32卷 315-329页

作者： wang Weitao wang baoshan Jiang Shengmiao Hu Jiupeng Zhang Yuansheng Key Laboratory of Seismic Observation and Geophysical Imaging Institute of GeophysicsCEA Lanzhou Institute of Seismology CEA

The investigations on the structure and temporal variations of the continent crust have been the long-lasting topics of seismology. The artificial sources play the most important role in these studies for their well-known locations and occur times among all the sources producing elastic waves,so that precise results are obtained. In past decades,we have successfully excited the airgun sources in on-land water bodies such as reservoirs,expanding their applications in marine seismology. Large volume airguns have been used to produce low frequency signals which can travel hundreds of kilometers after stacking,providing a source connecting the exploration seismology and traditional seismology at regional scale. In this review,we introduce the changes through which we turn the airgun into scientific instruments by experiments. We also present the advances on imaging the continental crust structure and monitoring the velocity variations using the highly repeatable signals emitted by airgun sources. The potential applications such as imaging the subsurface of urban areas and high resolution illuminating of mines are proposed and the challenges for further investigations are also discussed.

关键词： Airgun Sources Crust velocity structure Monitoring velocity variations

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SF_(6)替代型环保绝缘气体:研究、应用和展望

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中国电机工程学报 2024年第18期44卷 7395-7411,I0023页

作者：高克利杨圆周文俊王宝山丁卫东张晓星林莘颜湘莲张博雅王邸博肖淞电网环境保护全国重点实验室(中国电力科学研究院有限公司) 湖北省武汉市430074 电网环境保护全国重点实验室(武汉大学) 湖北省武汉市430072 电工材料电气绝缘全国重点实验室(西安交通大学) 陕西省西安市710049 新能源及电网装备安全监测湖北省工程研究中心(湖北工业大学) 湖北省武汉市430068 沈阳工业大学辽宁省沈阳市110870 南方电网科学研究院有限责任公司广东省广州市510663

为应对全球气候变暖趋势,强温室效应SF_(6)气体的使用管控日趋严格,而环保气体绝缘设备的研发和应用是电力系统“双碳”目标实现的重要技术方向。近年来,以全氟异丁腈(C_(4)F_(7)N)气体绝缘420 kV气体绝缘开关设备(gas insulated switch... 详细信息

为应对全球气候变暖趋势,强温室效应SF_(6)气体的使用管控日趋严格,而环保气体绝缘设备的研发和应用是电力系统“双碳”目标实现的重要技术方向。近年来,以全氟异丁腈(C_(4)F_(7)N)气体绝缘420 kV气体绝缘开关设备(gas insulated switchgear,GIS)、全氟五碳酮(C_(5)F_(10)O)气体绝缘24 k V环网柜为代表的环保电力装备,已在多个国家实现工程应用,推进电力行业的绿色低碳转型。该文主要围绕C_(4)F_(7)N、C_(5)F_(10)O这两种有推广应用前景的环保替代气体,综述分子设计技术、微观参数、绝缘性能和分解稳定性、灭弧性能、设备材料相容性、工程应用等方面的最新研究进展,并对未来工程应用技术路线选择和技术研究方向进行展望,以期为我国绿色电力装备的研发及应用提供一定的借鉴。

关键词：环保绝缘气体全氟异丁腈(C_4F_7N) 全氟五碳酮(C_5F_(10)O) 应用展望

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Active source monitoring at the Wenchuan fault zone:coseismic velocity change associated with aftershock event and its implication

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Earthquake Science 2014年第6期27卷 599-606页

作者： Wei Yang Hongkui Ge baoshan wang Jiupeng Hu Songyong Yuan Sen Qiao Key Laboratory of Seismic Observation and Geophysical Imaging Institute of Geophysics China Earthquake Administration Unconventional Natural Gas Institute China University of Petroleum

With the improvement of seismic observation system, more and more observations indicate that earthquakes may cause seismic velocity change. However, the amplitude and spatial distribution of the velocity variation remains a controversial issue. Recent active source monitoring carried out adjacent to Wenchuan Fault Scientific Drilling （WFSD） revealed unambiguous coseismic velocity change associated with a local M8 5.5 earthquake. Here, we carry out forward modeling using two-dimensional spectral element method to further investigate the amplitude and spatial distribution of observed velocity change. The model is well constrained by results from seismic reflection and WFSD coring. Our model strongly suggests that the observed coseismic velocity change is localized within the fault zone with width of ~ 120 m rather than dynamic strong ground shaking. And a velocity decrease of -2.0 % within the fault zone is required to fit the observed travel time delay distribution, which coincides with rock mechanical experiment and theoretical modeling.

关键词： Wenchuan fault zone Coseismic velocity change Accurately Controlled Routinely Operated Seismic Source (ACROSS) Active monitoring Forward modeling

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Progress and Prospect of Geophysical Research on Underground Gas Storage: A Case Study of Hutubi Gas Storage,Xinjiang,China

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Earthquake Research in China 2020年第2期34卷 187-209页

作者： ZHANG Bo SONG Lili JI Zhanbo wang baoshan WU Zhide Key Laboratory of Seismic Observation and Geophysical Imaging Institute of GeophysicsChina Earthquake AdministrationBeijing 100081China School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China Research Institute of Petroleum Exploration and Development Langfang 065007China

Hutubi Underground Gas Storage(UGS) is an important part of China’s West-East Gas Pipeline Project. Its production safety also plays an essential role in ensuring peaking,emergency and reserve of natural gas in the region. Geophysical observations and research conducted on Hutubi UGS provide significant support for understanding the operation status and ensuring safe operation of the UGS. Since the beginning of the construction of Hutubi UGS and its production,several works including gas field observation experiments,rock experiments and numerical simulations have been conducted. Preliminary observational results show that during the initial operation stage of the UGS,the "breathing phenomenon"in caprock and microseismicity in the vicinity are closely related to the operation of the gas storage. However,rock experiments and numerical simulations show that these activities may gradually weaken with the multi-cycle operation of gas storage. The impact of the operation of Hutubi UGS in the surrounding areas is gradually weakening,and its operation tends to be stable. Implementing long-term and multi-method geophysical observations is able to provide us a better understanding of the relationship between the operation of UGS and regional geological hazards. On this basis,the corresponding geomechanical model can be established to form an effective risk management mechanism for gas storage operation. Thus,it is of great significance to understand its operation status,monitor storage conditions,guide production and operation,and ultimately guarantee the safe production of the gas storage.

关键词： Hutubi Underground Gas Storage Deformation Seismicity Rock experiment

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