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Accounting for natural-climatic conditions in the design of roads in western Siberia

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Research in Cold and Arid Regions 2015年第4期7卷 307-315页

作者： vladimir N.efimenko Sergey v.efimenko Alexey v.Sukhorukov Tomsk State University of Architecture and Building

The paper proposes a methodological scheme that thoroughly accounts for natural-climatic conditions which can impair the stability and longevity of transport facilities （roadways）, to ensure the best possible quality of the initial road design. Factors determining the formation of water-heating mode subgrade soils are allocated, and an information database for mathematical modeling of geocomplexes is shown. values of strength and deformability of clay soils are calculated within the limits of the defined, homogeneous road districts in Western Siberia to provide the required level of reliability of design solutions.

关键词： transport facilities road-climatic zoning water-heating mode subgrade soils design geocomplexes

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正确理解和应用API653标准

油气储运 1996年第2期15卷 54-56页

作者： Hendrix D.e. Carucci v.A. 张文伟管道勘察设计院

石油的不断开发使储罐的应用迅速增长,随着时间的推移,由于罐的脆性破坏而产生的泄漏已成为一个严峻的问题。1991年1月出版的API653标准《罐的检测、修补、更换与整治》为地上常压储罐提供了预防性维修和检测技术要求,利用它对罐顶、罐... 详细信息

石油的不断开发使储罐的应用迅速增长,随着时间的推移,由于罐的脆性破坏而产生的泄漏已成为一个严峻的问题。1991年1月出版的API653标准《罐的检测、修补、更换与整治》为地上常压储罐提供了预防性维修和检测技术要求,利用它对罐顶、罐壁、罐底及罐基础等进行检测与评估,能够及时地了解储罐的结构完整性及运行状况,有效地防止因脆性破坏而突发事故,避免环境污染和不良社会影响。检测结果往往是不符合要求的,API653对此有它的灵活性,认为有些条件经过进一步的技术分析是可以接受的。罐壁是易发生事故的地方,有5种技术分析方法可供选择。

关键词：标准储罐检测 API653 油罐

Less common etiologies of exocrine pancreatic insufficiency

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World Journal of Gastroenterology 2017年第39期23卷 7059-7076页

作者： vikesh K Singh Mark e Haupt David e Geller Jerry A Hall Pedro M Quintana Diez Division of Gastroenterology Johns Hopkins University School of MedicineBaltimoreMD 21287United States Medical Affairs AbbVie Inc.North ChicagoIL 60064United States Cystic Fibrosis Clinical Development AbbVie Inc.North ChicagoIL 60064United States CReON^(█) Clinical Development AbbVie Inc.North ChicagoIL 60064United States CReON^(█) Development AbbVie Inc.North ChicagoIL 60064United States

exocrine pancreatic insufficiency(ePI), an important cause of maldigestion and malabsorption, results from primary pancreatic diseases or secondarily impaired exocrine pancreatic function. Besides cystic fibrosis and chronic pancreatitis, the most common etiologies of ePI, other causes of ePI include unresectable pancreatic cancer, metabolic diseases(diabetes); impaired hormonal stimulation of exocrine pancreatic secretion by cholecystokinin(CCK); celiac or inflammatory bowel disease(IBD) due to loss of intestinal brush border proteins; and gastrointestinal surgery(asynchrony between motor and secretory functions, impaired enteropancreatic feedback, and inadequate mixing of pancreatic secretions with food). This paper reviews such conditions that have less straightforward associations with ePI and examines the role of pancreatic enzyme replacement therapy(PeRT). Relevant literature was identified by database searches. Most patients with inoperable pancreatic cancer develop ePI(66%-92%). ePI occurs in patients with type 1(26%-57%) or type 2 diabetes(20%-36%) and is typically mild to moderate; by definition, all patients with type 3 c(pancreatogenic) diabetes have ePI. ePI occurs in untreated celiac disease(4%-80%), but typically resolves on a gluten-free diet. ePI manifests in patients with IBD(14%-74%) and up to 100% of gastrointestinal surgery patients(47%-100%; dependent on surgical site). With the paucity of published studies on PeRT use for these conditions, recommendations for or against PeRT use remain ambiguous. The authors conclude that there is an urgent need to conduct robust clinical studies to understand the validity and nature of associations between ePI and medical conditions beyond those with proven mechanisms, and examine the potential role for PeRT.

关键词： Celiac disease Inflammatory bowel disease exocrine pancreatic insufficiency Malabsorption epidemiology Pancreas Pancreatic cancer Secretion/absorption Surgery

Neurophysics Assessment of the Muscle Bioenergy Generated by Transcranial Magnetic Stimulation

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Research 2019年第1期2019卷 1077-1085页

作者： Fidias e.Leon-Sarmiento Alexander Gonzalez-Castaño Carlos v.Rizzo-Sierra Juan Aceros Daniel S.Leon-Ariza Juan S.Leon-Ariza Diddier G.Prada William Bara-Jimenez Zeng Y.Wang Smell and Taste Center Perelman School of MedicineUniversity of PennsylvaniaPhiladelphiaPAUSA Human Motor Control Section NINDSNational Institutes of HealthBethesdaMDUSA Mediciencias Research Group LouisvilleKYUSA Universidad Internacional de la Rioja Spain Neurophysics Unit Corporacion Universitaria Minuto de Dios-UNIMINUTOColombia Charity Association for Person Centered Medicine Moral EntityItaly School of engineering University of North FloridaJacksonvilleFLUSA Faculty of Health Sciences Santander UniversityUDESColombia Department of Neurosurgery Johns Hopkins UniversityBaltimoreMAUSA Harvard T.H.Chan School of Public Health Harvard UniversityBostonMAUSA Unidad de Investigacion Biomedica en Cancer Instituto Nacional de CancerMexico DFMexico Neuromuscular Division Department of NeurologyUniversity of LouisvilleLouisvilleKYUSA

Te content of the rectifed motor evoked potential(MeP)induced by transcranial magnetic stimulation(TMS)has ambiguously been assessed without the precision that energy calculation *** fact has misled data interpretation and misguided biomedical *** defnitively fll the gap that exits in the neurophysics processing of these signals,we computed,in Walls(̂�),the bioenergy within the rectifed MeP recorded from the human frst digitorum index(FDI)muscle at rest and under isometric *** also gauged the biowork exerted by this *** we show that bioenergy and biowork can accurately and successfully be assessed,validated,and determined in̂�from MeP signals induced by TMS,regardless of knowing the mathematical expression of the function of the *** novel neurophysics approach represents a dramatic paradigm shif in analysis and interpretation of the content of the MeP and will give a true meaning to the content of rectifed ***,this innovative approach allowed unveiling that women exerted more bioenergy than men at the magnetic stimulations used in this *** of conclusions drawn from studies published elsewhere assessing rectifed eMG signals that have used ambiguous units is strongly recommended.

关键词： stimulation gauge allowed

Investigation of Al plasmas from thin foils irradiated by high-intensity extreme ultraviolet

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Matter and Radiation at extremes 2017年第3期2卷 129-138页

作者： e.v.Grabovski P.v.Sasorov A.P.Shevelko v.v.Aleksandrov S.N.Andreev M.M.Basko A.v.Branitski A.N.Gritsuk G.S.volkov Ya.N.Laukhin K.N.Mitrofanov G.M.Oleinik A.A.Samokhin v.P.Smirnov I.Yu.Tolstikhina I.N.Frolov O.F.Yakushev State Research Center of the Russian Federation Troitsk Institute for Innovation and Fusion Research 108840TroitskMoscowRussia Keldysh Institute of Applied Mathematics of the Russian Academy of Sciences Miusskaya pl.4125047MoscowRussia P.N.Lebedev Physical Institute of the Russian Academy of Sciences Leninsky pr.53Moscow119991Russia

Dynamics and spectral transmission of Al plasma produced by extreme ultraviolet(eUv)irradiation of 0.75-mm thick Al foil is *** eUv radiation with the peak power density in the range of 0.19-0.54 TW/cm 2 is provided by Z-pinch formed by W multiwire array implosion in the Angara-5-1 *** of the experiment ensures that there are no plasma fluxes from the pinch toward the Al foil and *** same eUv source is used as a back illuminator for obtaining the absorption spectrum of Al plasma in the wavelength range of 5e24 *** comprises absorption lines of ions Al^(4+),Al^(5+),Al^(6+),Al^(7+).Analysis of relative intensities of the lines shows that those ions are formed in dense Al plasma with a temperature of~20 *** of Al plasma has been investigated with transverse laser *** have also performed radiation-gas-dynamics simulations of plasma dynamics affected by external radiation,which includes self-consistent radiation transport in a plasma *** simulations show good agreement with an experimental absorption spectrum and with experimental data concerning plasma dynamics,as well as with the analysis of line absorption *** confirms the correctness of the physical model underlying these simulations.

关键词： Z-pinch Dense plasma transparency

exact solutions of the Dirac equation with Pschl-Teller double-ring-shaped Coulomb potential via the Nikiforov-Uvarov method

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Chinese Physics B 2013年第3期22卷 117-121页

作者： e.Maghsoodi H.Hassanabadi S.Zarrinkamar Physics Department Shahrood University of TechnologyShahroodIran Department of Basic Sciences Garmsar BranchIslamic Azad UniversityGarmsarIran

exact analytical solutions of the Dirac equation are reported for the Poschl-Teller double-ring-shaped Coulomb *** radial,polar,and azimuthal parts of the Dirac equation are solved using the Nikiforov-Uvarov method,an... 详细信息

关键词： Dirac equation Poschl-Teller double-ring-shaped Coulomb potential Nikiforov-Uvarov method

Accuracy Assessment of Alos W3d30, Aster Gdem and Srtm30 Dem: A Case Study of Nigeria, West Africa

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Journal of Geographic Information System 2019年第2期11卷 111-123页

作者： O. I. Apeh v. N. Uzodinma e. S. ebinne e. C. Moka e. U. Onah Department of Geoinformatics & Surveying University of Nigeria Enugu Campus Nigeria

Digital elevation Models (DeMs) depict the configuration of the earth surface and are being applied in many areas in earth and environmental sciences. In this study, the accuracy of the Advanced Land Observing Satellite World 3D Digital Surface Model version 2.1 (ALOS W3D30), the Shuttle Radar Topography Mission Digital elevation Model version 3.0 (SRTM30) and the Advanced Space borne Thermal emission and Reflection Radiometer Global DeM version 2.0 (ASTeR GDeM2) was statistically assessed using high accuracy GPS survey data. Root-Mean-Square errors of ~5.40 m, ~7.47 m and ~20.03 m were obtained for ALOS W3D30, SRTM30 and ASTeR GDeM2 respectively. In further analyses, we discovered that ALOS W3D30 and SRTM30 were much more accurate in regions where the height intervals were within 201 m - 400 m and >801 m. ALOS W3D30 proved to be the most accurate DeM that best represents the topography of the earth’s surface and could be used for some earth and environmental applications in Nigeria. We recommend that this study should serve as a guide in the use of any of these DeMs for earth and environmental applications in Nigeria.

关键词： ALOS W3D30 ASTeR GDeM2 SRTM30 Nigeria DeMs Accuracy Assessment Root-Mean-Square error

Mode filtering based on ponderomotive force nonlinearity in a plasma filled rectangular waveguide

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Plasma Science and Technology 2017年第10期19卷 70-74页

作者： H SOBHANI H R SABOUHI S FeILI e DADAR Young Researchers and elite Club Qom Branch Islamic Azad University Department of electrical engineering Hormoz Branch Islamic Azad University Department of Physics Shahid Bahonar University Faculty of economic Mofid University

Here a new scheme for mode filtering is proposed. Based on the ponderomotive force effect,propagation of the microwave dual-mode through a plasma-filled metallic rectangular waveguide is investigated. To excite the Te_（20） mode in a rectangular waveguide, the existence of fundamental modes is unavoidable. To filter the destructive mode（Te_（10））, the waveguide is filled with a collisional plasma. Based on the coupling effect, the energy of this destructive Te_（10） mode is transferred to the Te_（20） mode. The proposed structure acts like a mode convertor. The Te_（10） mode become more attenuated and instead the Te_（20） mode is amplified. The plasma filled rectangular waveguide acts as a mode filtering tool.

关键词： mode filtering mode convertor collisional plasma ponderomotive force

安徽主要粮食作物天气指数保险模型研究与应用

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中国农业气象 2024年第5期45卷 562-570页

作者：杨太明曹雯高锷孙喜波许莹刘园沈光斌安徽省农村综合经济信息中心合肥230031 国元农业保险股份有限公司合肥230031 中国渔业互助保险社北京100080 中国农业科学院农业环境与可持续发展研究所北京100081

气象灾害是农业生产面临的主要风险之一,给农业安全生产带来巨大损失。农业保险是农业保障体系的重要组成部分,是有效分散农业风险或弥补灾害损失的重要救灾手段之一。20世纪90年代后期出现的天气指数保险,因其客观、标准化和流通性强... 详细信息

气象灾害是农业生产面临的主要风险之一,给农业安全生产带来巨大损失。农业保险是农业保障体系的重要组成部分,是有效分散农业风险或弥补灾害损失的重要救灾手段之一。20世纪90年代后期出现的天气指数保险,因其客观、标准化和流通性强等特点在全球引起广泛关注、研究与应用。本文在回顾了国内外天气指数保险技术的发展历程基础上,详细分析了天气指数保险与传统农业保险的差异,以及各自的优势与劣势;以安徽粮食作物(冬小麦、一季中稻、夏玉米)生长过程中特定农业气象灾害的天气指数保险为例,介绍天气指数模型研制与产品开发。通过天气指数农业保险产品在安徽多年实践应用,探索天气指数模型的改进方法,以降低基差风险;并对天气指数保险未来发展进行探讨与展望。

关键词：天气指数保险农业灾害风险评估气候变化