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盐下地质的地球物理成像法

国外油气勘探 1998年第1期10卷 85-95页

作者： Davis W.Ratcliff david j.weber 郝顺元物探局研究院信息中心

约在四年前,关于墨西哥湾海上勘探给人的总的感觉是:勘探工作主要是在大陆架进行,而且已经做完了,并在继续减少。由于技术和经验的限制,多数人认为深水域风险太大,因此,只有很少量的重点区域还保留着。实际上,大部分公司都从墨西哥湾撤... 详细信息

约在四年前,关于墨西哥湾海上勘探给人的总的感觉是:勘探工作主要是在大陆架进行,而且已经做完了,并在继续减少。由于技术和经验的限制,多数人认为深水域风险太大,因此,只有很少量的重点区域还保留着。实际上,大部分公司都从墨西哥湾撤退出来了。后来,在1993年10月,由于Mahogany盐床的发现,仿佛一夜之间改变了这种情况,并且点燃了渴望有新发现的那些人的希望,看来光明就在前头。

关键词：盐构造下部地球物理勘探成像方法

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Mahogany盐床上的盐下成像

国外油气勘探 1997年第4期9卷 485-487页

作者： Davis W.Ratcliff david j.weber 席小燕王皖生石油地球物理勘探局第一地质调查处科技科

盐下油气勘探一直是并将继续成为一项具有高风险和高商业潜力的工作。最近,在墨西哥湾以及世界其他盆地中(发现的)盐下油气显示使得人们对盐下勘探产生了极大的兴趣。在成功的盐下勘探中,起着重要作用的地球物理技术最主要的是深度偏移... 详细信息

盐下油气勘探一直是并将继续成为一项具有高风险和高商业潜力的工作。最近,在墨西哥湾以及世界其他盆地中(发现的)盐下油气显示使得人们对盐下勘探产生了极大的兴趣。在成功的盐下勘探中,起着重要作用的地球物理技术最主要的是深度偏移。深度偏移技术(叠后和叠前)可以使勘探工作者识别和绘制圈闭重要烃类聚集的盐下构造图和地层特征。在本文中,我们用Mahogany盐床地区作为样板,讨论盐下成像方法和技术应用(三维时间和深度偏移),它可以有助于盐下勘探工作者进行远景评估、风险判断。

关键词：三维地震勘探盐膏层成像叠前偏移深度偏移

Women in visual neural regeneration research

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Neural Regeneration Research 2025年第2期20卷 489-490页

作者： Tonia S.Rex david j.Calkins Vanderbilt Eye Institute Vanderbilt University Medical CenterNashvilleTNUSA

The year 2024 marks the 60^(th)anniversary of Title IX and 25 years since the New York Times revealed bias against female faculty members at the Massachusetts Institute of *** take an opportunity here to examine the state of gender bias in a relatively new yet already prominent field,neural regeneration in the visual system,for which there is a well-defined context useful for this *** National Eye Institute(NEI)provided the first round of research funding for its Audacious Goals Initiative(AGI)on visual neural regeneration in 2013 and the last round in ***,we focus on this *** sources included PubMed,the National Science Foundation(NSF),the NEI,the Blue Ridge Institute for Medical Research and data from the major professional organization for eye and vision research,the Association for Research in Vision and Ophthalmology(ARVO).

关键词： neural visual Times

Charged particles:Unique tools to study irradiation resistance of concentrated solid solution alloys

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journal of Materials Science & Technology 2023年第9期140卷 260-276页

作者： Yanwen Zhang Lumin Wang William j.weber Materials Science and Technology Division Oak Ridge National LaboratoryOak RidgeTN37831USA Department of Materials Science&Engineering University of TennesseeKnoxvilleTN37996USA Department of Nuclear Engineering and Radiological Sciences University of MichiganAnn ArborMI48109USA

Many multicomponent concentrated solid solution alloys(CSAs),including high-entropy alloys(HEAs),exhibit improved radiation resistance and enhanced structural stability in harsh *** study and assess irradiation resistance of nuclear materials,energetic ion and electron beams are commonly used to create displacement ***,charged particles of ions,electrons,and positrons are unique tools to create and characterize radiation *** beam analysis(e.g.,Rutherford backscattering spectrometry,nuclear reaction analysis,and time-of-flight elastic recoil detection analysis),electron microscopy techniques(e.g.,transmission or scanning electron microscopy,and electron diffraction),and positron annihilation spectroscopy have been applied to characterize irradiated CSAs or HEAs to understand defect formation and evolution together with chemical and microstructural *** distinctive analyzing power and some perspectives in these techniques are *** developing structural alloys desirable for applications in advanced reactors,neutron exposure is a critical test but the limitation in achievable high damage levels is,however,a *** irradiation is often used as a surrogate for neutron irradiation,and the associated reduced transmutations and higher displacements per atom(dpa)rates are desirable for materials ***,cautions need to be taken when relying on ion irradiation results for reactor *** on differences between ions and neutrons is briefly *** addition,the links to bridge the current advances on fundamental understandings to reactor applications are discussed to lay the groundwork between neutrons and ions for radiation effects studies.

关键词： chemical disorder high-entropy alloys chemically complex alloys charged particles radiation resistance displacement damage electronic energy loss and ionization transmutation

Phylogenetic and sequence analyses of insect transferrins suggest that only transferrin 1 has a role in iron homeostasis

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Insect Science 2021年第2期28卷 495-508页

作者： Diana G.Najera Neal T.Dittmer jacob j.weber Michael R.Kanost Maureen j.Gorman Department of Biochemistry and Molecular Biophysics Kansas State UniversityManhattanKansasUSA

Iron is essential to life,but surprisingly little is known about how iron is managed in nonvertebrate *** mammals,the well-characterized transferrins bind iron and are involved in iron transport or immunity,whereas other members of the transferrin family do not have a role in iron *** insects,the functions of transferrins are still poorly *** goals of this project were to identify the transferrin genes in a diverse set of insect species,resolve the evolutionary relationships among these genes,and predict which of the transferrins are likely to have a role in iron *** phylogenetic analysis of transferrins from 16 orders of insects and two orders of noninsect hexapods demonstrated that there are four orthologous groups of insect *** analysis suggests that transferrin 2 arose prior to the origin of insects,and transferrins/,i,and 4 arose early in insect *** sequence analysis of each of the insect transferrins was used to predict signal peptides,carboxyl-terminal transmembrane regions,GPI-anchors,and iron *** on this analysis,we suggest that transferrins 2,and 4 are unlikely to play a major role in iron *** contrast,the transferrin 1 orthologs are predicted to be secreted,soluble,iron-binding *** conclude that transferrin 1 orthologs are the most likely to play an important role in iron ***,it appears that the louse,aphid,and thrips lineages have lost the transferrin 1 gene and,thus,have evolved to manage iron without transferrins.

关键词： hemolymph insect iron homeostasis melanotransferrin phylogeny transferrin

Flexible, diamond-based microelectrodes fabricated using the diamond growth side for neural sensing

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Microsystems & Nanoengineering 2020年第1期6卷 742-753页

作者： Bin Fan Cory A.Rusinek Cort H.Thompson Monica Setien Yue Guo Robert Rechenberg Yan Gong Arthur j.weber Michael F.Becker Erin Purcell Wen Li Department of Electrical and Computer Engineering Michigan State UniversityEast LansingMIUSA Fraunhofer USA Center for Coatings and Diamond Technologies East LansingMIUSA Department of Biomedical Engineering Michigan State UniversityEast LansingMIUSA Department of Physiology Michigan State UniversityEast LansingMIUSA

Diamond possesses many favorable properties for biochemical sensors,including biocompatibility,chemical inertness,resistance to biofouling,an extremely wide potential window,and low double-layer *** hardness of diamond,however,has hindered its applications in neural implants due to the mechanical property mismatch between diamond and soft nervous ***,we present a flexible,diamond-based microelectrode probe consisting of multichannel boron-doped polycrystalline diamond(BDD)microelectrodes on a soft Parylene C *** developed and optimized a wafer-scale fabrication approach that allows the use of the growth side of the BDD thin film as the sensing *** to the nucleation surface,the BDD growth side exhibited a rougher morphology,a higher sp^(3) content,a wider water potential window,and a lower background *** dopamine(DA)sensing capability of the BDD growth surface electrodes was validated in a 1.0 mM DA solution,which shows better sensitivity and stability than the BDD nucleation surface *** results of these comparative studies suggest that using the BDD growth surface for making implantable microelectrodes has significant advantages in terms of the sensitivity,selectivity,and stability of a neural ***,we validated the functionality of the BDD growth side electrodes for neural recordings both in vitro and in *** biocompatibility of the microcrystalline diamond film was also assessed in vitro using rat cortical neuron cultures.

关键词： neural film diamond

Apples to oranges:environmentally derived,dynamic regulation of serotonin neuron subpopulations in adulthood?

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Neural Regeneration Research 2025年第9期20卷 2596-2597页

作者： Christopher j.O’Connell Matthew j.Robson Department of Genetics College of MedicineHarvard UniversityBostonMAUSA james L.Winkle College of Pharmacy Division of Pharmaceutical SciencesUniversity of CincinnatiCincinnatiOHUSA Neuroscience Graduate Program College of MedicineUniversity of CincinnatiCincinnatiOHUSA

Traumatic brain injury(TBI)is a public health problem with an undue economic burden that impacts nearly every age,ethnic,and gender group across the globe(Capizzi et al.,2020).TBIs are often sustained during a dynamic range of exposures to energetic environmental forces and as such outcomes are typically heterogeneous regarding severity and pathology(Capizzi et al.,2020).

关键词： sustained orange dynamic

From Slater to Mott physics by epitaxially engineering electronic correlations in oxide interfaces

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npj Computational Materials 2021年第1期7卷 846-851页

作者： Carla Lupo Evan Sheridan Edoardo Fertitta david Dubbink Chris j.Pickard Cedric weber Theory and Simulation of Condensed Matter King’s College LondonLondonUK Happy Electron Ltd LondonUK Department of Materials Science and Metallurgy University of CambridgeCambridgeUK Advanced Institute for Materials Research Tohoku UniversitySendaiJapan

Using spin-assisted ab initio random structure searches,we explore an exhaustive quantum phase diagram of archetypal interfaced Mott insulators,***-iron and lanthanum-titanium *** particular,we report that the charge transfer induced by the interfacial electronic reconstruction stabilises a high-spin ferrous Fe2+*** provide a pathway to control the strength of correlation in this electronic state by tuning the epitaxial strain,yielding a manifold of quantum electronic phases,***-Hubbard,charge transfer and Slater insulating ***,we report that the electronic correlations are closely related to the structural oxygen octahedral rotations,whose control is able to stabilise the low-spin state of Fe2+at low pressure previously observed only under the extreme high pressure conditions in the Earth’s lower ***,we provide avenues for magnetic switching via THz radiations which have crucial implications for next generation of spintronics technologies.

关键词： Slater lanthanum quantum

Control of light emission of quantum emitters coupled to silicon nanoantenna using cylindrical vector beams

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Light(Science & Applications) 2023年第10期12卷 2248-2255页

作者： Martin Montagnac Yoann Brûlé Aurélien Cuche jean-Marie Poumirol Sébastien j.weber jonas Müller Guilhem Larrieu Vincent Larrey Franck Fournel Olivier Boisron Bruno Masenelli Gérard Colas des Francs Gonzague Agez Vincent Paillard CEMES-CNRS Universitéde ToulouseToulouseFrance ICB Universitéde BourgogneCNRSDijonFrance LAAS-CNRS Universitéde ToulouseToulouseFrance CEA-LETI UniversitéGrenoble-AlpesGrenobleFrance Universitéde Lyon UniversitéLyon 1CNRS UMR 5510ILMVilleurbanneFrance Universitéde Lyon INSA LyonCNRSEcole Centrale de LyonUniversitéLyon 1CPEUMR 5270INLVilleurbanneFrance Bruno Masenelli

Light emission of europium(Eu^(3+))ions placed in the vicinity of optically resonant nanoantennas is usually controlled by tailoring the local density of photon states(LDOS).We show that the polarization and shape of the excitation beam can also be used to manipulate light emission,as azimuthally or radially polarized cylindrical vector beam offers to spatially shape the electric and magnetic fields,in addition to the effect of silicon nanorings(Si-NRs)used as *** photoluminescence(PL)mappings of the Eu^(3+)transitions and the Si phonon mappings are strongly dependent of both the excitation beam and the Si-NR *** experimental results of Raman scattering and photoluminescence are confirmed by numerical simulations of the near-field intensity in the Si nanoantenna and in the Eu^(3+)-doped film,*** branching ratios obtained from the experimental PL maps also reveal a redistribution of the electric and magnetic emission *** results show that it could be possible to spatially control both electric and magnetic dipolar emission of Eu^(3+)ions by switching the laser beam polarization,hence the near field at the excitation wavelength,and the electric and magnetic LDOS at the emission *** paves the way for optimized geometries taking advantage of both excitation and emission processes.

关键词： excitation cylindrical spatially