检索结果-南通市图书馆

Energy Geoscience 2024年第2期5卷 298-303页

作者： edwin i.egbobawaye Nelly Omoruyi Abdulmutallib Aminu Robert Trentham Mohamed K.Zobaa Sumit Verma Kinder Morgan MidlandTX79705USA Department of Geosciences University of Texas Permian BasinOdessaTX79762USA

The Pennsylvanian unconformity,which is a detrital surface,separates the beds of the Permian-aged strata from the Lower Paleozoic in the Central Basin *** data interpretation indicates that the unconformity is an angular unconformity,overlying multiple normal faults,and accompanied with a thrust fault which maximizes the region's structural ***,the Pennsylvanian angular unconformity creates pinch-outs between the beds above and *** computed the spectral decomposition and reflector convergence attributes and analyzed them to characterize the angular unconformity and *** spectral decomposition attribute divides the broadband seismic data into different spectral bands to resolve thin beds and show thickness *** contrast,the reflector convergence attribute highlights the location and direction of the pinch-outs as they dip south at angles between 2° and 6°.After reviewing findings from RGB blending of the spectrally decomposed frequencies along the Pennsylvanian unconformity,we observed channel-like features and multiple linear bands in addition to the faults and *** can be inferred that the identified linear bands could be the result of different lithologies associated with the tilting of the beds,and the faults may possibly influence hydrocarbon migration or act as a flow barrier to entrap hydrocarbon *** identification of this angular unconformity and the associated features in the study area are vital for the following reasons:1)the unconformity surface represents a natural stratigraphic boundary;2)the stratigraphic pinch-outs act as fluid flow connectivity boundaries;3)the areal extent of compartmentalized reservoirs'boundaries created by the angular unconformity are better defined;and 4)fault displacements are better understood when planning well locations as faults can be flow barriers,or permeability conduits,depending on facies heterogeneity and/or seal effectiveness of a fault,which

关键词： Pennsylvanian unconformity Seismic data interpretation Spectral decomposition Reflector convergence Reservoir characterization

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Calabi-Yau Topology of Primordial Fermions

引用

Journal of Modern Physics 2024年第1期15卷 132-158页

作者： edwin Eugene Klingman Cybernetic Micro Systems Inc. San Gregorio CA USA

Quantum field theory creates fermions via abstract operators exciting abstract fields, with a specific field for each type of specific particle. This operator algebra lends itself well to quantum statistics, nevertheless, our physical understanding of this process is nonintuitive at best. in this paper we analyze the creation of fermions from primordial gauge field quantum gravity loops in the context of Calabi-Yau manifold theory. i extend a prior mass-gap treatment based on Yang-Mills gauge theory of higher order self-interaction to include the half-integral spin of fermions.

关键词： Calabi-Yau Topology Fermion Spin Particle Genesis Primordial Field Self-interaction Equations Yang-Mills Gravity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Drone systems for delivering defibrillators for sudden cardiac arrests

引用

Journal of Acute Disease 2024年第1期13卷 1-2页

作者： Thirumurugan E edwin Dias Karthick R Srinivas University MangaloreKarnatakaIndia Faculty of Allied Health Science DR MGR Educational and Research InstituteACS Medical CollegeChennaiTamil NaduIndia

Unmanned aerial vehicles(UAVs),or drones,that were initially developed for military use during World War i[1],have evolved into highly sophisticated aircraft that can be navigated remotely using global positioning *** constant improvements,drones have become more efficient,and cost-effective,with longer battery life and greater loading ***,UAVs have proven to be an effective and affordable solution for enhancing healthcare accessibility for patients who face geographical or infrastructural *** drone networks can greatly reduce the time transporting life-saving equipment,such as delivering automated external defibrillators(AEDs),to cardiac arrest victims,and can provide quick assistance to reduce travel time for the patients.

关键词： initially travel battery

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Sedimentology and ichnology of Upper Montney Formation Tight Gas Reservoir, Northeastern British Columbia, Western Canada Sedimentary Basin

引用

international Journal of Geosciences 2016年第12期7卷 1357-1411页

作者： edwin i. egbobawaye Department of Earth and Atmospheric Sciences University of Alberta Edmonton Canada

Several decades of conventional oil and gas production in Western Canada Sedimentary Basin (WCSB) have resulted in maturity of the basin, and attention is shifting to alternative hydrocarbon reservoir system, such as tight gas reservoir of the Montney Formation, which consists of siltstone with subordinate interlaminated very fine-grained sandstone. The Montney Formation resource play is one of Canada’s prime unconventional hydrocarbon reservoir, with reserve estimate in British Columbia (Natural Gas reserve = 271 TCF), Liquefied Natural Gas (LNG = 12,647 million barrels), and oil reserve (29 million barrels). Based on sedimentological and ichnological criteria, five lithofacies associations were identified in the study interval: Lithofacies F-1 (organic rich, wavy to parallel laminated, black colored siltstone);Lithofacies F-2 (very fine-grained sandstone interbedded with siltstone);Lithofacies F-3A (bioturbated silty-sandstone attributed to the Skolithos ichnofacies);Lithofacies F-3B (bioturbated siltstone attributed to Cruziana ichnofacies);Lithofacies F-4 (dolomitic, very fine-grained sandstone);and Lithofacies F-5 (massive siltstone). The depositional environments interpreted for the Montney Formation in the study area are lower shoreface through proximal offshore to distal offshore settings. Rock-Eval data (hydrogen index and Oxygen index) shows that Montney sediments contains mostly gas prone Type iii/iV with subordinate Type ii kerogen, TOC ranges from 0.39 - 3.54 wt% with a rare spike of 10.9 wt% TOC along the Montney/Doig boundary. Vitrinite reflectance data and Tmax show that thermal maturity of the Montney Formation is in the realm of “peak gas” generation window. Despite the economic significance of the Montney unconventional “resource-play”, however, the location and predictability of the best reservoir interval remain conjectural in part because the lithologic variability of the optimum reservoir lithologies has not been adequately characterized. This

关键词： Montney Formation Sedimentology ichnology Tight Gas Reservoir Oil and Gas Petroleum Geology British Columbia Western Canada Sedimentary Basin

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Whole-Rock Geochemistry and Mineralogy of Triassic Montney Formation, Northeastern British Columbia, Western Canada Sedimentary Basin

引用

international Journal of Geosciences 2016年第1期7卷 91-114页

作者： edwin i. egbobawaye Department of Earth and Atmospheric Sciences University of Alberta Edmonton Canada

inductively Coupled Plasma-Mass Spectrometry (iCP-MS) was used to analyze chemical elements—major, trace and rare earth elements (REE) concentrations, augmented with quantitative X-ray diffraction (XRD) analysis and thin-section petrography for mineralogical characterization of the Triassic Montney Formation in northeastern British Columbia, Western Canada Sedimentary Basin (WCSB). Results from this study indicate that integration of chemical elements with mineralogy shows affinity to the host lithologies. Evidently, chemical elements are the building blocks for minerals, thus, their significances ize:12px;font-family:Verdana;">in the interpretation of geological systems are unambiguous. Herein, major elements concentration such as Al, Fe, K, Mg, Ca, Mn in the samples analyzed from the Montney Formation are interpreted as: 1) indication of dolomitization and diagenesis;2) trace elements—Rb, Th, U, and Cs are related to the organi

关键词： Geochemistry Whole-Rock Mineralogy Montney Formation Thin-Section Petrography Trace-Elements iCP-MS XRD Dolomitization Diagenesis WCSB

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Case Report: Carnitine Palmitoyl Transferase ii (CPT ii) Deficiency

引用

Open Journal of internal Medicine 2024年第1期14卷 93-101页

作者： Kathy Po Marius Chivu edwin Rosas Balpreet Kaur Department of internal Medicine Saint James School of Medicine The Quarter Anguilla Department of internal Medicine Medicine at University of Chicago Chicago USA Department of internal Medicine Medical College of Wisconsin Wisconsin USA

Carnitine Palmitoyl Transferase ii (CPTii) is a very important enzyme that helps with the oxidation of long-chain fatty acid to produce energy. Deficiency in CPTii will lead to energy deficiency in the case of fasting and the accumulation of the long chain fatty in the body. There are three types of CPT ii deficiency, the myopathic form, the severe infantile hepatocardiomuscular form and the lethal neonatal form. They are all inherited as an autosomal recessive. Diagnosis of the CPTii are 1) tandem mass spectrometry (MS/MS) in adult form and 2) CPTii polymorphism (F352C), which is linked to reducing the activity of CPTii in infantile form [1]. Glucose is the primary management and medium-chain fatty acid is an alternative due to the bypass of the CPTii enzyme in the pathway. For the prevention of CPTii deficiency are to avoid long chain fatty acid (C12-fatty acid), fasting, prolonged exercise, known triggers, and certain medications such as anti-epileptics and general anesthesia. During the rhabdomyolysis and myoglobinuria attack, it is very important to maintain hydration to avoid acute renal failure. if, however, renal failure occurs, dialysis is recommended. We present a case of a 27-year-old African American woman with the significant past medical history of CPT ii deficiency leading to recurrent rhabdomyolysis and myoglobinuria. Together with all the research studies from diagnosis to treatment of CPTii deficiency will help in clinical management of patients. And this case report will add to the existing case reports of patients who have CPTii deficiency in terms of how we diagnose, how we treat, and how we prevent symptoms from re-occurring.

关键词： Carnitine Palmitoyl Transferase ii (CPTii) Mitochondria Long Chain Fatty Acid Medium Chain Fatty Acid Carnitine Carnitine Palmitoyl Transferase i (CPTi) Acyl-Carnitine Beta-Oxidation Rhabdomyolysis Myoglobinuria Renal Failure Hypoketotic Hypoglycemia

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Petroleum Source-Rock Evaluation and Hydrocarbon Potential in Montney Formation Unconventional Reservoir, Northeastern British Columbia, Canada

引用

Natural Resources 2017年第11期8卷 716-756页

作者： edwin i. egbobawaye Department of Earth and Atmospheric Sciences University of Alberta Edmonton Canada

Source-rock characteristics of Lower Triassic Montney Formation presented in this study shows the total organic carbon (TOC) richness, thermal maturity, hydrocarbon generation, geographical distribution of TOC and thermal maturity (Tmax) in Fort St. John study area (T86N, R23W and T74N, R13W) and its environs in northeastern British Columbia, Western Canada Sedimentary Basin (WCSB). TOC richness in Montney Formation within the study area is grouped into three categories: low TOC ( 3.5 wt%), and high TOC (>3.5 wt% %). Thermal maturity of the Montney Formation source-rock indicates that >90% of the analyzed samples are thermally mature, and mainly within gas generating window (wet gas, condensate gas, and dry gas), and comprises mixed Type ii/iii (oil/gas prone kerogen), and Type iV kerogen (gas prone). Analyses of Rock-Eval parameters (TOC, S2, Tmax, Hi, Oi and Pi) obtained from 81 samples in 11 wells that penetrated the Montney Formation in the subsurface of northeastern British Columbia were used to map source rock quality across the study area. Based on total organic carbon (TOC) content mapping, geographical distribution of thermal maturity (Tmax) data mapping, including evaluation and interpretation of Rock-Eval parameters in the study area, the Montney Formation kerogen is indicative of a pervasively matured petroleum system in the study area.

关键词： Petroleum Source-Rock Rock-Eval Oil and Gas Kerogen Vitrinite Reflectance Hydrocarbon Reservoir Montney Formation Geology TOC Tmax Pyrolysis Hydrocarbon Generation British Columbia Western Canada Sedimentary Basin WCSB

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

isotopes (<sup>13</sup>C and <sup>18</sup>O) Geochemistry of Lower Triassic Montney Formation, Northeastern British Columbia, Western Canada

引用

Natural Science 2017年第10期9卷 355-376页

作者： edwin i. egbobawaye Department of Earth and Atmospheric Sciences 1-26 Earth Sciences Building University of Alberta Edmonton Canada

Oxygen isotope (δ18O) serves as paleothermometer, and provides paleotemperature for carbonates. δ18O signature was used to estimate the temperature of fractionation of dolomite and calcite in Montney Formation, empirically calculated to have precipitated, between approximately 13°C to ±33°C during Triassic time in northeastern British Columbia, Western Canada Sedimentary Basin (WCSB). Measurements of stable isotopes (δ13C and δ18O) fractionation, supported by quantitative X-ray diffraction evidence, and whole-rock geochemical characterization of the Triassic Montney Formation indicates the presence of calcite, dolomite, magnesium, carbon and other elements. Results from isotopic signature obtained from bulk calcite and bulk dolomite from this study indicates depleted δ13CPDB (-2.18‰ to -8.46‰) and depleted δ18OPDB (-3.54‰ to -16.15‰), which is interpreted in relation to oxidation of organic matter during diagenesis. Diagenetic modification of dolomitized very fine-grained, silty-sandstone of the Montney Formation may have occurred in stages of progressive oxidation and reduction reactions involving chemical elements such as Fe, which manifest in mineral form as pyrite, particularly, during early burial diagenesis. Such mineralogical changes evident in this study from petrography and SEM, includes cementation, authigenic quartz overgrowth and mineral replacement involving calcite and dolomite, which are typical of diagenesis. High concentration of chemical elements in the Montney Formation?-Ca and Mg indicates dolomitization. it is interpreted herein, that calcite may have been precipitated into the interstitial pore space of the intergranular matrix of very fine-grained silty-sandstone of the Montney Formation as cement by a complex mechanism resulting in the interlocking of grains.

关键词： isotopes Stable isotopes 13C and 18O isotope Geochemistry Montney Formation Geochemistry Chemical Element Mineralogy Tight Gas Reservoir British Columbia Western Canada Sedimentary Basin (WCSB) Triassic Subsurface Geology

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Distinct immune escape and microenvironment between RG-like and pri-OPC-like glioma revealed by single-cell RNA-seq analysis

引用

Frontiers of Medicine 2024年第1期18卷 147-168页

作者： Weiwei Xian Mohammad Asad Shuai Wu Zhixin Bai Fengjiao Li Junfeng Lu Gaoyu Zu Erin Brintnell Hong Chen Ying Mao Guomin Zhou Bo Liao Jinsong Wu edwin Wang Linya You Department of Human Anatomy&Histoembryology School of Basic Medical SciencesFudan UniversityShanghai200032China Cumming School of Medicine University of CalgaryCalgaryAlbertaT2N 4N1Canada Glioma Surgery Division Department of NeurosurgeryHuashan HospitalFudan UniversityShanghai200040China Department of Pathology Huashan HospitalFudan UniversityShanghai200040China Department of Neurosurgery Huashan HospitalFudan UniversityShanghai200040China Shanghai Key Laboratory of Medical imaging Computing and Computer Assisted intervention Fudan UniversityShanghai200040China School of Mathematics and Statistics Hainan Normal UniversityHaikou570100China

The association of neurogenesis and gliogenesis with glioma remains *** conducting single-cell RNA-seq analyses on 26 gliomas,we reported their classification into primitive oligodendrocyte precursor cell(pri-OPC)-like and radial glia(RG)-like tumors and validated it in a public cohort and TCGA *** RG-like tumors exhibited wild-type isocitrate dehydrogenase and tended to carry EGFR mutations,and the pri-OPC-like ones were prone to carrying TP53 *** subclones only in pri-OPC-like tumors showed substantially down-regulated MHC-i genes,suggesting their distinct immune evasion ***,the two subgroups appeared to extensively modulate glioma-infiltrating lymphocytes in distinct *** specific genes not expressed in normal immune cells were found in glioma-infiltrating *** example,glial/glioma stem cell markers OLiG1/PTPRZ1 and B cell-specific receptors iGLC2/iGKC were expressed in pri-OPC-like and RG-like glioma-infiltrating lymphocytes,*** expression was positively correlated with those of immune checkpoint genes(e.g.,LGALS33)and poor survivals as validated by the increased expression of LGALS3 upon iGKC overexpression in Jurkat *** finding indicated a potential inhibitory role in tumor-infiltrating lymphocytes and could provide a new way of cancer immune evasion.

关键词： single-cell RNA-seq glioma radial glia primitive oligodendrocyte precursor cell immune escape

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

RR-SC:边缘设备中基于随机计算神经网络的运行时可重配置框架

引用

计算机研究与发展 2024年第4期61卷 840-855页

作者：宋玉红沙行勉诸葛晴凤许瑞王寒华东师范大学计算机科学与技术学院上海200062

随着人工智能民主化的发展,深度神经网络已经被广泛地应用于移动嵌入式设备上,例如智能手机和自动驾驶领域等.随机计算作为一种新兴的、有前途的技术在执行机器学习任务时使用简单的逻辑门而不是复杂的二进制算术电路.它具有在资源(如... 详细信息

随着人工智能民主化的发展,深度神经网络已经被广泛地应用于移动嵌入式设备上,例如智能手机和自动驾驶领域等.随机计算作为一种新兴的、有前途的技术在执行机器学习任务时使用简单的逻辑门而不是复杂的二进制算术电路.它具有在资源(如能源、计算单元和存储单元等)受限的边缘设备上执行深度神经网络低能耗、低开销的优势.然而,之前的关于随机计算的工作都仅仅设计一组模型配置并在固定的硬件配置上实现,忽略了实际应用场景中硬件资源(如电池电量)的动态改变,这导致了低硬件效率和短电池使用时间.为了节省电池供电的边缘设备的能源,动态电压和频率调节技术被广泛用于硬件重配置以延长电池的使用时间.针对基于随机计算的深度神经网络,创新性地提出了一个运行时可重配置框架,即RR-SC,这个框架首次尝试将硬件和软件的重配置相结合以满足任务的时间约束并最大限度节省能源.RR-SC利用强化学习技术可以一次性生成多组模型配置,同时满足不同硬件配置(即不同的电压/频率等级)下的准确率要求.RR-SC得到的解具有最好的准确率和硬件效率权衡.同时,多个模型配置运行时在同一个主干网络上进行切换,从而实现轻量级的软件重配置.实验结果表明,RRSC可以在110 ms内进行模型配置的轻量级切换,以保证在不同硬件级别上所需的实时约束.同时,它最高可以实现7.6倍的模型推理次数提升,仅造成1%的准确率损失.

关键词：边缘设备随机计算运行时重配置动态硬件环境轻量级软件重配置强化学习

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：