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Geochemical,mineralogical,and petrological analyses for the interpretation of the sedimentary environment of the Middle-Late Ordovician Majiagou Formation(northern China)as a tool for more effective gas exploration

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Petroleum Science 2022年第6期19卷 2519-2532页

作者： Jie Gao Da-Wei Lv A.J.(tom) van Loon Dun Wu Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals Shandong University of Science and TechnologyQingdaoShandong266590China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyShandong266071China College of Earth Science and Engineering Shandong University of Science and TechnologyShandong266590China Exploration Research Institute Anhui Provincial Bureau of Coal GeologyHefeiAnhui230088China

Core samples from the deeply buried Ordovician Majiagou Formation below the Huainan Coalfield(E China) have been investigated for their carbonate types,major and trace elements(including rare earth elements) and C and O isotopes,The objective was to get a better insight into the possible occurrences of gas(and possibly oil) derived from Carboniferous *** was found that the carbonates are dolomites with strongly varying amounts of CaO and *** low concentrations of SiO_(2),Al_(2)O_(3),and Fe_(2)O_(3)indicate deposition in a normal marine environment with little terrigenous input,The Na_(2)O/K_(2)O,Fe/Mn and Sr/Ba ratios,as well as the Ga values indicate mainly a marine salinity and a hot and humid *** slight depletion of Ce and Eu,the depletion of heavy rare earth elements(HREE) and the enrichment of light rare earth elements(LREE) indicate deposition in a reducing *** thus appears that the Majiagou Formation below the Huainan Coalfield closely resembles that in the eastern part of the Ordos Basin,where several gas reservoirs are present,so that the Majiagou Formation under the Huainan Coalfield represents a promising target for hydrocarbon exploration.

关键词： Majiagou Formation Middle Ordovician Major-element analysis REE analysis Trace-element analysis Hydrocarbon exploration

Synergistic interactions between the charge‐transport and mechanical properties of the ionic‐liquid‐based solid polymer electrolytes for solid‐state lithium batteries

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Carbon Energy 2023年第11期5卷 44-53页

作者： Ashutosh Agrawal Saeed Yari Hamid Hamed tom Gouveia Rongying Lin Mohammadhosein Safari Institute for Materials Research(IMOimomec) UHasseltHasseltBelgium Energyville GenkBelgium Solvionic ToulouseFrance IMEC Division IMOMEC DiepenbeekBelgium

The performance sensitivity of the solid‐state lithium cells to the synergistic interactions of the charge‐transport and mechanical properties of the electrolyte is well acknowledged in the literature,but the quantitative insights therein are very ***,the charge‐transport and mechanical properties of a polymerized ionic‐liquid‐based solid electrolyte are *** transference number and diffusion coefficient of lithium in the concentrated solid electrolyte are measured as a function of concentration and stack *** elastoplastic behavior of the electrolyte is quantified under compression,within a home‐made setup,to substantiate the impact of stack pressure on the stability of the Li/electrolyte interface in the symmetric lithium *** results spotlight the interaction between the concentration and thickness of the solid electrolyte and the stack pressure in determining the polarization and stability of the solid‐state lithium batteries during extended cycling.

关键词： battery diffusion pressure solid state transference

MicroRNA rules： Made to be broken

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Frontiers in Biology 2013年第5期8卷 468-474页

作者： P. Shannon PENDERGRAST tom VOLPE Ymir Genomics 516 Green Street 1A Cambridge MA 02139 USA Department of Cell andMolecular Biology Feinberg School of Medicine Northwestern University 303 East Chicago Avenue Chicago 1L 60611 USA

MicroRNAs （miRNAs） are important post-transcriptional regulators of gene expression. For over a decade the deluge of research describing the biogenesis and activity of miRNAs has lead researchers to postulate rules to help make sense of the enormous amount of data produced. These rules are repeated in miRNA research papers and reviews. While these rules have been helpful one must be conscious of their limitations or risk missing future breakthroughs. Here we describe some of the most commonly stated rules, the reasoning behind their formation, their uses, and limitations.

关键词： microRNA post-transcriptional gene regulation mRNA 3' UTR conservation rule seed pairing rule biogenesis rule mechanism of action rule

A Probabilistic Trust Model and Control Algorithm to Protect 6G Networks against Malicious Data Injection Attacks in Edge Computing Environments

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Computer Modeling in Engineering & Sciences 2024年第10期141卷 631-654页

作者： Borja Bordel Sánchez Ramón Alcarria tomás Robles Department of Computer Systems Universidad Politécnica de MadridMadrid28031Spain Department of Geospatial Engineering Universidad Politécnica de MadridMadrid28031Spain

Future 6G communications are envisioned to enable a large catalogue of pioneering *** will range from networked Cyber-Physical Systems to edge computing devices,establishing real-time feedback control loops critical for managing Industry 5.0 deployments,digital agriculture systems,and essential *** provision of extensive machine-type communications through 6G will render many of these innovative systems autonomous and *** full automation will enhance industrial efficiency significantly,it concurrently introduces new cyber risks and *** particular,unattended systems are highly susceptible to trust issues:malicious nodes and false information can be easily introduced into control ***,Denialof-Service attacks can be executed by inundating the network with valueless *** anomaly detection schemes require the entire transformation of the control software to integrate new steps and can only mitigate anomalies that conform to predefined mathematical *** based on an exhaustive data collection to detect anomalies are precise but extremely *** models,with their limited understanding of mobile networks,can achieve precision rates no higher than 75%.Therefore,more general and transversal protection mechanisms are needed to detect malicious behaviors *** paper introduces a probabilistic trust model and control algorithm designed to address this *** model determines the probability of any node to be *** channels are pruned for those nodes whose probability is below a given *** trust control algorithmcomprises three primary phases,which feed themodel with three different probabilities,which are weighted and ***,anomalous nodes are identified using Gaussian mixture models and clustering ***,traffic patterns are studied using digital Bessel functions and the functional scalar ***,the in

关键词： 6G networks noise injection attacks Gaussian mixture model Bessel function traffic filter Volterra filter

Evaluation of hepatic cystic lesions

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World Journal of Gastroenterology 2013年第23期19卷 3543-3554页

作者： Marten A Lantinga tom JG Gevers Joost PH Drenth Department of Gastroenterology and Hepatology Radboud University Nijmegen Medical Centre6500 HB Nijmegen The Netherlands

Hepatic cysts are increasingly found as a mere coincidence on abdominal imaging techniques, such as ultrasonography (USG), computed tomography (CT) and magnetic resonance imaging (MRI). These cysts often present a diagnostic challenge. Therefore, we performed a review of the recent literature and developed an evidence-based diagnostic algorithm to guide clinicians in characterising these lesions. Simple cysts are the most common cystic liver disease, and diagnosis is based on typical USG characteristics. Serodiagnostic tests and microbubble contrast-enhanced ultrasound (CEUS) are invaluable in differentiating complicated cysts, echinococcosis and cystadenoma/cystadenocarcinoma when USG, CT and MRI show ambiguous findings. Therefore, serodiagnostic tests and CEUS reduce the need for invasive procedures. Polycystic liver disease (PLD) is arbitrarily defined as the presence of > 20 liver cysts and can present as two distinct genetic disorders: autosomal dominant polycystic kidney disease (ADPKD) and autosomal dominant polycystic liver disease (PCLD). Although genetic testing for ADPKD and PCLD is possible, it is rarely performed because it does not affect the therapeutic management of PLD. USG screening of the liver and both kidneys combined with extensive family history taking are the cornerstone of diagnostic decision making in PLD. In conclusion, an amalgamation of these recent advances results in a diagnostic algorithm that facilitates evidence-based clinical decision making.

关键词： Coincidental hepatic cystic lesions Cystic liver disease Complicated cyst Polycystic liver disease Diagnostic algorithm

Effects of a phase transition on two-pion interferometry in heavy ion collisions at √SNN=2.4-7.7 GeV

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Science China(Physics,Mechanics & Astronomy) 2023年第3期66卷 88-97页

作者： Pengcheng Li Jan Steinheimer tom Reichert Apiwit Kittiratpattana Marcus Bleicher Qingfeng Li Institut fur Theoretische Physik Johann Wolfgang Goethe Universitat FrankfurtFrankfurt am Main 60438Germany School of Science Huzhou UniversityHuzhou 313000China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China Frankfurt Institute for Advanced Studies Frankfurt am Main 60438Germany GSI Helmholtzzentrum f¨urSchwerionenforschung GmbH Darmstadt 64291Germany Helmholtz Research Academy Hesse for FAIR(HFHF) GSI Helmholtz Center for Heavy Ion PhysicsCampus FrankfurtFrankfurt am Main 60438Germany Center of Excellence in High Energy Physics&Astrophysics School of PhysicsSuranaree University of TechnologyNakhon Ratchasima 30000Thailand

Hanbury-Brown-Twiss(HBT) correlations for charged pions in central Au+Au collisions at √SNN=2.4-7.7 GeV(corresponding to beam kinetic energies in the fixed target frame from Elab=1.23 to 30 GeV/nucleon) are calculated using the ultra-relativistic quantum molecular dynamics model with different equations of state(EoSs).The effects of a phase transition at high baryon densities are clearly observed in the explored HBT *** results show that the available data on the HBT radii,RO/RSand R^(2)_(O)-R^(2)_(S),in the investigated energy region favor a relatively stiff EoS at low beam energies,which then turns into a soft EoS at high collision energies consistent with astrophysical constraints on the high-density EoS of quantum chromodynamics(QCD).The specific effects of two different phase transition scenarios on RO/RSand R^(2)_(O)-R^(2)_(S)are investigated.A phase transition with a significant softening of the EoS below four times the nuclear saturation density can be excluded using HBT *** results highlight that the pion’s RO/RSand R^(2)_(O)-R^(2)_(S)are sensitive to the stiffness of the EoS and can be used to constrain and understand the QCD EoS in a high baryon density region.

关键词： heavy ion collisions HBT correlation equation of state

Experimental-computational study of fibrous particle transport and deposition in a bifurcating lung model

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Particuology 2016年第5期14卷 102-113页

作者： Xiaole Chen Wenqi Zhong Josin tom Clement Kleinstreuer Yu Feng Xiaopu He Key Laboratory of Energy Thermal Conversion and Control of the Ministry of Education School of Energy and Environment Southeast University Nanjing210096 China Department of Mechanical and Aerospace Engineering North Carolina State University Raleigh NC 27695 USA Department of Biomedical Engineering North Carolina State University Raleigh NC27695 USA School of Chemical Engineering Oklahoma State University Stillwater OK 74078 USA First Affiliated Hospital of Nanjing Medical University Nanjing 210029 China

Experiments carried out using a lung model with a single horizontal bifurcation under different steady inhalation conditions explored the orientation of depositing carbon fibers, and particle deposition frac- tions. The orientations of deposited fibers were obtained from micrographs. Specifically, the effects of the sedimentation parameter （γ）, fiber length, and flow rate on orientations were analyzed. Our results indicate that gravitational effect on deposition cannot be neglected for 0.0228 〈 γ 〈 0.247. The absolute orientation angle of depositing fibers decreased linearly with increasing y for values 0.0228 〈 γ 〈 0.15. Correspondence between Stokes numbers and y suggests these characteristics can be used to estimate fiber deposition in the lower airways. Computer simulations with sphere-equivalent diameter models for the fibers explored deposition efficiency vs. Stokes number. Using the volume-equivalent diameter model, our experimental data for the horizontal bifurcation were replicated. Results for particle deposition using a lung model with a vertical bifurcation indicate that body position also affects deposition.

关键词： Lung aerosol dynamics Image-processing method Fiber deposition data Computer simulations Deposited fiber orientations

FORCE RIPPLE SUPPRESSION TECHNOLOGY FOR LINEAR MOTORS BASED ON BACK PROPAGATION NEURAL NETWORK

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Chinese Journal of Mechanical Engineering 2008年第2期21卷 13-16页

作者： ZHANG Dailin CHEN Youping AI Wu ZHOU Zude KONG Ching tom School of Mechanical Engineering Huazhong University of Science and Technology Wuhan 430074 China Institute of Precision EngTneering The Chinese University of Hong Kong Hong Kong China

Various force disturbances influence the thrust force of linear motors when a linear motor （LM） is running. Among all of force disturbances, the force ripple is the dominant while a linear motor runs in low speed. In order to suppress the force ripple, back propagation（BP） neural network is proposed to learn the function of the force ripple of linear motors, and the acquisition method of training samples is proposed based on a disturbance observer. An off-line BP neural network is used mainly because of its high running efficiency and the real-time requirement of the servo control system of a linear motor. By using the function, the force ripple is on-line compensated according to the position of the LM. The experimental results show that the force ripple is effectively suppressed by the compensation of the BP neural network.

关键词： Linear motor (LM) Back propagation(BP) algorithm Neural network Anti-disturbance technology

The hyperpycnite problem: comment

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Journal of Palaeogeography 2019年第3期8卷 314-320页

作者： A.J.(tom) van Loon Heiko Hüneke Thierry Mulder Geocom Consulting Valle del Portet 17 03726 Benitachell Spain College of Earth Science and Engineering Shandong University of Science and Technology Qingdao 266590 Shandong China Institute of Geography and Geology Greifswald University Greifswald Germany UMR CNRS EPOC University of Bordeaux Allee Geoffroy St-Hilaire 33615 Pessac Cedex France

A recent review article("The hyperpycnite problem") by Shanmugam(Journal of Palaeogeography 7(3):197–238,2018) in this journal has some shortcomings, comes to scientifically incorrect conclusions, and calls for student education in a way that would significantly diminish the students’ changes for a geological career. Having studied--and still studying--hyperpycnites in the field, it seems only appropriate to inform the readers of this journal about our concerns regarding the review article mentioned ***, the article by Shanmugam(Journal of Palaeogeography 7(3):197–238, 2018) is not a review paper but rather a comment, criticizing al researchers who have come to the conclusion, on the basis of both field research and theory,that hyperpycnal flows result in sediments(hyperpycnites) with characteristics that make it possible to distinguish them from deposits formed in another way. This is also the essence of Shanmugam’s comment: as he states himself, he is"an ardent critic of al genetic facies models".

关键词： review Shanmugam critic