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  • Authors: 
    G. S. Shchelik; I. L. Sofronov;
    Publisher: IEEE

    Conventional processing algorithms for acoustic logging data, based on propagation analysis of guided modes, have sufficient limitations when underground formation is anisotropic or borehole cross-section is essentially non-circular, as there is no analytical estimates ...

  • Open Access
    Authors: 
    Zheng, Yifan; Su, Rui; Xu, Zhaojian; Luo, Deying; Dong, Hua; Jiao, Bo; Wu, Zhaoxin; Gong, Qihuang; Zhu, Rui;
    Publisher: Elsevier BV

    The huge performance enhancements of the organometal halide perovskite solar cells (OHPSCs) have appealed enormous attention within recent ten years. Although the rapid growth of the device power conversion efficiency (PCE) has attained over 25%, the contamination of he...

  • Closed Access
    Authors: 
    Mohammad Heidary;
    Publisher: Springer Science and Business Media LLC

    Knowledge of reservoir rock wettability is crucial for the understanding of fluid displacement mechanisms and for adopting feasible solutions to enhance oil recovery. Highly sensitive to the strength of fluid–rock interactions, nuclear magnetic resonance (NMR) measureme...

  • Open Access
    Authors: 
    Tandong Yao; Wusheng Yu; Guangjian Wu; Baiqing Xu; Wei Yang; Huabiao Zhao; Weicai Wang; Shenghai Li; Ninglian Wang; Zhongqin Li; +2 more
    Publisher: Science China Press., Co. Ltd.

    The Tibetan Plateau and its surroundings contain the largest number of glaciers outside the polar regions. In the past 100 years, the glaciers on the Tibetan Plateau and its surrounding areas have been retreating slowly. Since the 1990s, however, the state of glaciers h...

  • Closed Access
    Authors: 
    Yuting Xiao; Shien Guo; Guohui Tian; Baojiang Jiang; Zhiyu Ren; Chungui Tian; Wei Li; Honggang Fu;
    Publisher: Elsevier BV

    Abstract Efficient charge separation and rapid interfacial reaction kinetics are crucial factors that determine the efficiency of photocatalytic hydrogen evolution. Herein, a fascinating 2D heterojunction photocatalyst with superior photocatalytic hydrogen evolution per...

  • Closed Access
    Authors: 
    Shumin Liu; Xuelong Li; Dengke Wang; Dongming Zhang;
    Publisher: Springer Science and Business Media LLC

    Liquid nitrogen freeze–thaw has been used in oil, shale gas and coalbed methane exploitation as an efficient fracturing technology. This paper aimed to study the effect of different coal ranks and liquid nitrogen soaking times on the temperature distribution of coal sam...

  • Authors: 
    Bo Wang; Bairui Tao; Yanju Liu; Xiaoxin Du;
    Publisher: Global Vision Press

    In the study of mine GIS index optimization of mining decision support system, in order to reduce the overlap between the index nodes, in this paper we propose the intensity of polygon to ensure the index nodes have good geometry. In this paper, we also put forward arti...

  • Closed Access
    Authors: 
    Takemura, Shunsuke; Kubo, Hisahiko; Tonegawa, Takashi; Saito, Tatsuhiko; Shiomi, Katsuhiko;
    Publisher: Springer Science and Business Media LLC

    The accretionary prism in the subduction zone, which consists of thick low-velocity oceanic sediments, significantly affects the propagation of seismic waves for shallow, offshore earthquakes, including large interplate earthquakes. In order to simulate long-period (> 5...

  • Open Access
    Authors: 
    Sun, Jianfei; Zhang, Yu; Yang, Fang; Ma, Ming; Xiong, Fei; Gu, Ning;
    Publisher: Science China Press., Co. Ltd.

    Medical magnetic nanomaterials refer to magnetic nanomaterials owning specific biological effects and therapeutic functions which are promising in clinical medicine. A good case in this point is the iron-based magnetic nanomaterials. As the only inorganic nanomaterials ...

  • Closed Access
    Authors: 
    Mahmoud Elhussein;
    Publisher: Springer Science and Business Media LLC

    A new efficient technique has been developed to interpret self-potential data from different mineralized sources (horizontal cylinder, vertical cylinder, sphere, and 2-D inclined sheet). This technique is based on the first horizontal gradient filter and particle swarm ...

  • Open Access
    Authors: 
    Jiayuan Huang; Robert L. Nowack;
    Publisher: Springer Science and Business Media LLC
    Country: United States

    Machine learning using convolutional neural networks (CNNs) is investigated for the imaging of sparsely sampled seismic reflection data. A limitation of traditional imaging methods is that they often require seismic data with sufficient spatial sampling. Using CNNs for ...

  • Open Access
    Authors: 
    Qing Wang; Toshiaki Ina; Wan-Ting Chen; Lu Shang; Fanfei Sun; Shanghai Wei; Dongxiao Sun-Waterhouse; Shane G. Telfer; Tierui Zhang; Geoffrey I. N. Waterhouse;
    Publisher: Elsevier BV

    Abstract The pyrolysis of zeolitic imidazolate frameworks (ZIFs) is becoming a popular approach for the synthesis of catalysts comprising porphyrin-like metal single atom catalysts (SACs) on N-doped carbons (M-N-C). Understanding the structural evolution of M-N-C as a f...

  • Closed Access
    Authors: 
    Hamdache, Mohamed; Peláez, José A.;
    Publisher: Springer Science and Business Media LLC

    We would like to make some comments on the paper by Hamidatou et al. (2019). Initially, these comments are motivated to reveal that, previous results on probabilistic seismic hazard analyses, some of them computed and published by our research group, are wrongly quoted ...

  • Open Access
    Authors: 
    Kun Zhao; Yanhui Ding; Ying Han; Yong Fan; Aaron Alexander-Bloch; Tong Han; Dan Jin; Bing Liu; Jie Lu; Chengyuan Song; +14 more
    Publisher: Elsevier BV

    Abstract Hippocampal morphological change is one of the main hallmarks of Alzheimer's disease (AD). However, whether hippocampal radiomic features are robust as predictors of progression from mild cognitive impairment (MCI) to AD dementia and whether these features prov...

  • Closed Access
    Authors: 
    Huang, Mengqian; Zhang, Lei; Zhang, Cun; Chen, Shuai;
    Publisher: Springer Science and Business Media LLC

    The factors affecting permeability change under repeated mining of coal seams are important study aspects that need to be explored. This study combined various stress variation characteristics of protective seam mining and simplified the stress path of repeated mining i...

  • Closed Access
    Authors: 
    Kim, Minyou; Lee, Keunhee; Lee, Yong Hee;
    Publisher: Springer Science and Business Media LLC

    There have been many studies to improve visibility forecast skills using numerical models, but their performance still remains behind the forecast skills for other meteorological phenomena. This study attempted to improve visibility forecasts using a newly established a...

  • Open Access
    Authors: 
    Monia Procesi; Daniele Cinti; Barbara Casentini; Jacopo Cabassi; Stefano Amalfitano; Luca Pizzino; F. Capecchiacci; Andrea Butturini; Stefano Fazi;
    Publisher: Societa Geologica Italiana

    Urban lakes have become increasingly important in the planning of urban ecology, green infrastructure and green areas in European cities. This paper describes the chemical, isotope and microbial features of Lake Bullicante, a small artificial lake located within the urb...

  • Closed Access
    Authors: 
    Tongwen Zhang; Yujiang Yuan; Wenshou Wei; Shulong Yu; Ruibo Zhang; Feng Chen; Huaming Shang; Li Qin;
    Publisher: Cambridge University Press (CUP)

    AbstractAugust–July precipitation has been reconstructed back to AD 1724 for the Mohe region in the northern Greater Higgnan Mountains, China, usingPinus sylvestrisvar. mongolica tree-ring width. The reconstruction explains 39% of the variance in the precipitation obser...

  • Open Access
    Authors: 
    Wuchao Zhao; Jianghua He; Yuetao Zhang;
    Publisher: Elsevier BV

    Abstract The globally increasing demands for polymer materials stimulate the significantly intense attention focused on the Lewis pair polymerization (LPP) of various polar vinyl monomers catalyzed by Lewis pairs (LPs) composed of Lewis acid (LA) and Lewis base (LB). Ac...

  • Authors: 
    Vyacheslav Sibilev; Olga Tokareva; Vladimir Kolesov; Dmitry Burdakov;
    Publisher: SPE

    Abstract Complex geology, post-depositional alteration, and physicochemical features of sediments and pore fluids often pose problems to reservoir development planning. Meanwhile, lapse-time (4D) shallow resistivity surveys may be a good tool to monitor waterflooding us...

  • Closed Access
    Authors: 
    Saudamini Sahoo; Anand Singh; Santu Biswas; S.P. Sharma;
    Publisher: Springer Science and Business Media LLC

    Our study interprets large-scale gravity data to delineate concealed banded iron formation (BIF) iron mineralization in India's Rajasthan province. The study area belongs to the Bharatpur, Dausa, and Karauli districts of Rajasthan. We measured 1462 gravity readings to u...

  • Open Access
    Authors: 
    Shaheed Ullah; Bilal Akram; Hassan Ali; Hao Zhang; Haozhou Yang; Qingda Liu; Xun Wang;
    Publisher: Elsevier BV

    Carboxylate-based metal–organic frameworks (CMOFs) have received considerable attentions for their high stability, catalytic activity, and porosity. However, synthesis of CMOFs requires high temperature, pressure, and long reaction time. Here, we explored the activity o...

  • Closed Access
    Authors: 
    Rekha Bharali Gogoi; Govindan Kutty; V. Rakesh; Arup Borogain;
    Publisher: Springer Science and Business Media LLC

    The impact of deploying a flow-dependent ensemble error covariance in Weather Research and Forecasting (WRF) three-dimensional variational (3DVAR) data assimilation (DA) system is examined for short-range rainfall forecasts during an Indian summer monsoon season. The fl...

  • Authors: 
    Zhiyuan Zhang; Lijuan Xu;
    Publisher: IEEE

    People living standards have been improved as the service industry advancements, which has become an important part of national economy. Catering industry as one of the service industry has its unique service management model. With the development of economy, catering i...

  • Open Access
    Authors: 
    Dongfu Zhao; Huixuan Liu;
    Publisher: Atlantis Press
  • Publication . Article . Preprint . 2019
    Open Access English
    Authors: 
    Baoqiang Lao; Tao An; Ang Yu; Wenhui Zhang; Junyi Wang; Quan Guo; Shaoguang Guo; Xiaocong Wu;

    w-Projection is a wide-field imaging technique that is widely used in radio synthesis arrays. Processing the wide-field big data generated by the future Square Kilometre Array (SKA) will require significant updates to current methods to significantly reduce the time con...

  • Closed Access
    Authors: 
    Caloiero, T.; Veltri, S.;
    Publisher: Springer Science and Business Media LLC

    In this article, the Standardized Precipitation Index (SPI), at both the short- and long-time scale, has been evaluated to analyse drought in the Sardinia region (Italy). In fact, while the short-time scale SPI describes droughts that affect plant life and farming, the ...

  • Closed Access
    Authors: 
    Xiaoming Wang; Caroline Holden; William Power; Yaoru Liu; Joshu J. Mountjoy;
    Publisher: Springer Science and Business Media LLC

    This study investigates the potential for seismic seiches in Lake Tekapo, New Zealand, triggered by ground shaking from an Mw8.2 Alpine Fault earthquake. Synthetic ground motions are used as a forcing boundary to drive lake water motions by further developing a tsunami ...

  • Closed Access
    Authors: 
    Jixian Huang; Xiancheng Mao; Jin Chen; Hao Deng; Jeffrey M. Dick; Zhankun Liu;
    Publisher: Springer Science and Business Media LLC

    Exploring the spatial relationships between various geological features and mineralization is not only conducive to understanding the genesis of ore deposits but can also help to guide mineral exploration by providing predictive mineral maps. However, most current metho...

  • Open Access
    Authors: 
    Lili Wu; Jiaqi Su; Sheng Niu; Qian Chen; Yanfang Zhang; Jinghua Yan; Yi Shi; Jianxun Qi; George F. Gao; Qihui Wang;
    Publisher: Science China Press., Co. Ltd.

    The virus caused coronavirus disease 2019 (COVID-19 virus), also called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is the seventh coronavirus that can infect humans, and belongs to the genus β-coronavirus in the family Coronaviridae . As of 5 November...

  • Authors: 
    Zhang Mengyao; Zhang Mingze; Li Yinong; Huang Ruanming;
    Publisher: IEEE

    Under the new business environment, getting electricity sheds light on how essential it is to measure customer connection, which is complicated by supply reliability, procurement practices, application time, technical standards, etc. In an effort to ensure this permanen...

  • Closed Access
    Authors: 
    Hengameh Hosseini-Dinani; Ahmad Reza Mokhtari; Shahed Shahrestani; Benedetto De Vivo;
    Publisher: Springer Science and Business Media LLC

    A variety of factors contribute to the proper and efficient evaluation of geochemical programs including sampling medium, sample size and sample fraction, sampling density, digestion procedure, and analytical techniques. Among the aforementioned factors, sampling densit...

  • Closed Access
    Authors: 
    El-Mofty, S. E.; Khairy, N.; El-Kammar, A. M.; El-Midany, A. A.;
    Publisher: Springer Science and Business Media LLC

    Oil shale impurities prevent its direct usage as a source of energy. Removing or reducing of these impurities before retorting can reduce the cost of oil shale processing. In that regard, pretreatment of oil shale by flotation represents one of the favorable solutions. ...

  • Open Access
    Authors: 
    Yao Wang; Linhui Chen; Zhanxin Mao; Lishan Peng; Rui Xiang; Xianyi Tang; Jianghai Deng; Zidong Wei; Qiang Liao;
    Publisher: Elsevier BV

    Metal-nitrogen doped carbon catalysts (M-N/C) with abundantly accessible M-Nx sites, particularly single metal atom M-N/C (SAM-N/C), have been developed as a substitute for expensive Pt-based catalysts. These catalysts are used to increase the efficiency of otherwise sl...

  • Closed Access
    Authors: 
    Irmela Zentner; Gabriele Ameri; Emmanuel Viallet;
    Publisher: Springer Science and Business Media LLC

    This work proposes a new approach, based on Bayesian updating and extreme value statistics to determine the maximum magnitudes for truncated magnitude-frequency distributions such as the Gutenberg Richter model in the framework of Probabilistic Seismic Hazard Analyses. ...

  • Closed Access
    Authors: 
    Shaohua Yang; Wei Long; Fangwei Ning;
    Publisher: Emerald

    Purpose Velocity slipping model, based on the stratification theory (the film in inflatable support area of aerostatic guide way was divided into near wall layer, thin layer and continuous flow layer in the direction of height), was established, and the model was combi...

  • Open Access
    Authors: 
    Cozzolino, Marilena; Gabrielli, Roberto; Galata', Pasquale; Gentile, Vincenzo; Greco, Giorgia; Scopinaro, Eleonora;
    Publisher: Instituto Nazionale di Geofisica e Vulcanologia, INGV

    The Stylite Tower is part of the UNESCO archaeological site of Umm ar−Rasas (Jordan). It represents a unicum in its category and has a fundamental value for the Jordanian Cultural Heritage as a symbol and an emblem of Jordan’s history and culture. The monument has evide...

  • Open Access
    Authors: 
    Samadi Alinia, H; Tiampo, K F; Samsonov, S V; González, P J;
    Publisher: Oxford University Press
    Country: Spain

    A dominant source of error in space-based geodesy is the tropospheric delay, which results in excess path length of the signal as it passes through the neutral atmosphere. Many studies have addressed the use of global weather models and local meteorological observations...

  • Publication . Part of book or chapter of book . 2016
    Closed Access
    Authors: 
    Mertlík, Jan; Adamovič, Jiří;
    Publisher: Springer International Publishing

    The region of Bohemian Paradise in NE Bohemia is the most varied sandstone landscape in the Bohemian Cretaceous Basin . This is caused by the complex stratigraphy of Cretaceous (Upper Turonian to Coniacian) sediments, abrupt lateral changes in the development of sandsto...

  • Open Access
    Authors: 
    Yanming Zhu; Richeng Lin; Wei Zheng; Junxue Ran; Feng Huang;
    Publisher: Elsevier BV

    Abstract An accurate measurement of the refractive index is necessary for the optical design of both deep ultraviolet laser diodes and light-emitting diodes. Generally, the refractive indices along different crystallographic axes of anisotropic thin films are measured u...

  • Closed Access
    Authors: 
    Amirhossein Aghabarari; Mojtaba Ghaedi;
    Publisher: Springer Science and Business Media LLC

    During production from naturally fractured reservoirs, complex interactions exist between matrix blocks and gas-filled fractures in the gas invaded zone. Considerable efforts such as defining complicated transfer functions between matrix blocks and the fractured medium ...

  • Closed Access
    Authors: 
    Liangyu Zhu; Lingyun Ji; Fengyun Jiang;
    Publisher: Springer Science and Business Media LLC

    The East Kunlun Fault (EKF) is one of the largest and most active sinistral strike-slip faults in the Qinghai–Tibet Plateau. Since 1900, many earthquakes of magnitude > 7 have occurred in this region. The Maqin–Maqu Segment (MMS), a seismic gap underlying a densely popu...

  • Open Access English
    Authors: 
    Yida Wang; Xuan Wu; Bo Shao; Xiaofei Yang; Gary Owens; Haolan Xu;
    Publisher: China : Science in China Press
    Country: Australia

    Abstract Interfacial solar-steam generation is a promising and cost-effective technology for both desalination and wastewater treatment. This process uses a photothermal evaporator to absorb sunlight and convert it into heat for water evaporation. However solar-steam ge...

  • Open Access English
    Authors: 
    Ulrich, T.; Vater, S.; Madden, E.H.; Behrens, J.; van Dinther, Y.; van Zelst, I.; Fielding, E.J.; Liang, C.; Gabriel, A.-A.; Tectonics; +1 more
    Countries: Netherlands, United Kingdom, Switzerland
    Project: EC | ExaHyPE (671698), EC | ChEESE (823844)

    The September 2018, Mw 7.5 Sulawesi earthquake occurring on the Palu-Koro strike-slip fault system was followed by an unexpected localized tsunami. We show that direct earthquake-induced uplift and subsidence could have sourced the observed tsunami within Palu Bay. To t...

  • Closed Access
    Authors: 
    Qingyun Dou; Yue Wang; Aiping Wang; Meng Ye; Ruilin Hou; Yulan Lu; Lijun Su; Siqi Shi; Hongzhang Zhang; Xingbin Yan;
    Publisher: Elsevier BV

    Development of high-voltage electrolytes with non-flammability is significantly important for future energy storage devices. Aqueous electrolytes are inherently non-flammable, easy to handle, and their electrochemical stability windows (ESWs) can be considerably expande...

  • Closed Access
    Authors: 
    Ullah, Rizwan; Ke, Xiaoxing; Malik, Iftikhar Ahmed; Gu, Zhenao; Wang, Chuanshou; Ahmad, Munir; Yang, Yuben; Zhang, Wenkai; An, Xiaoqiang; Wang, Xueyun; +1 more
    Publisher: American Chemical Society (ACS)

    Layered perovskites with Aurivillius phase have drawn tremendous attention recently, owing to their high ferroelectric Curie temperatures, large spontaneous polarization, and fatigue-free and environment-friendly characteristics. Bi2WO6 is one of the simplest members in...

  • Open Access English
    Authors: 
    Stefan M. Schmalholz; Thibault Duretz; György Hetényi; Sergei Medvedev;
    Publisher: HAL CCSD
    Country: France

    International audience; Magnitudes of differential stress in the lithosphere, especially in the crust, are still disputed. Earthquake-based stress drop estimates indicate median values ca. 180 MPa, corresponding to a friction angle of ca. 10° to maintain the topographic...

  • Closed Access
    Authors: 
    Nazeel Sabah; Arjun Sil;
    Publisher: Springer Science and Business Media LLC

    Stochastic tools have been developed to estimate the potential for tsunami generation in a particular region under consideration. This paper identifies 13 probable zones on the earth where there is a high likelihood for tsunami generation in the future. The conditional ...

  • Open Access
    Authors: 
    Zoltán Wéber; Barbara Czecze; Bálint Süle; István Bondár;
    Publisher: Springer Science and Business Media LLC

    AbstractBetween February 16 and April 5, 2019, a series of earthquakes took place around the village of Somogyszob, Somogy county, Hungary. The mainshock occurred on March 7 with a local magnitude $$M_L=4.0$$ M L = 4.0 and epicentral intensity of 5 on the EMS scale...

  • Open Access
    Authors: 
    Tun Cao; Linhan Fang; Ying Cao; Nan Li; Zhiyou Fan; Zhiguo Tao;
    Publisher: Elsevier BV

    The observation of topological edge states (TESs) revolutionized our understanding of scattering and propagation of electromagnetic (EM) waves. Supported by topological robustness, the TES at the interface between trivial and non-trivial insulators was not reflected fro...