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Journal of Oceanology and Limnology 2023年第4期41卷 1300-1306页

作者： Michael r.CONOVEr Mark E.BELL Leah M.DELAHOUSSAYE Department of Wildland resources and Ecology Center LoganUT 84322-5230USA

Brine shrimp Artemia franciscana provide food for many migrating and staging birds that spend summer and fall on Great Salt Lake,Utah,*** produce live young and cysts(hard-walled eggs);these cysts are commercially harvested on Great Salt Lake and support a large industry in *** is unclear the impact that millions of hungry birds have on the Artemia population in the *** help assess that,this study evaluated cyst viability(percentage of cysts that contain an embryo)and hatchability(percent of cysts that hatch)from cysts that had passed through the digestive tract of eared grebes Podiceps nigricollis and cysts obtained directly from Great Salt Lake at the same site where each grebe was *** was significantly higher for cysts collected from the water column(19%)than from the stomach(0.3%)or intestines(3%)of eared *** also was significantly different for cysts collected from the water column(29%),stomach(0.7%),and intestines(5%).These results indicate that eared grebes nutritionally benefit from eating cysts and that they may be an important food source for grebes in late fall after the adult population of Artemia dies off due to the water becoming too ***,enough cysts survive their passage through the digestive system that grebes can vector hatchable cysts to other waterbodies.

关键词： Artemia dispersal eared grebes hatchability invasive species Great Salt Lake salty lakes viability

Infuence of elemental composition in environmental impacts of steel

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Journal of Iron and Steel research International 2020年第5期27卷 598-607页

作者： E.Batuecas C.Mayo r.Diaz F.J.Perez Thermal and Fluid Engineering Department Carlos III University of Madrid28911 LeganesMadridSpain Chemical and Materials Engineering Department Complutense University of Madrid28040 MadridSpain Technical Sciences and Engineering UDIMA University28400 Collado VillalbaMadridSpain。

The environmental behavior of four steels was *** the operation phase of concentrating solar power plants,steels withstand high temperature because of its contact with molten ***,choosing the steel type for the molten salt tanks remains a great *** the cold tank,carbon steel is usually used although an approach with low chromium content steel is being studied for these ***,in high temperature applications,such as hot store tank,austenitic stainless steel is the most frequent ***,ferritic steel is being considered as a promising material in these *** many researchers studied the steel technical properties without considering their environmental damages,this work aimed to introduce the environmental aspects into the material choice by using the life cycle assessment *** one hand,the results showed the environmental adequacy of carbon steel against low chromium content *** the other hand,the results obtained in those steels suitable in high temperature application revealed signifcant environmental benefts from the ferritic steel instead of the austenitic steel.

关键词： renewable energy Concentrating solar power Life cycle assessment Molten salt Ferritic steel Austenitic steel

Equine-assisted interventions for veterans with servicerelated health conditions: a systematic mapping review

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Military Medical research 2020年第2期7卷 174-189页

作者： Adam r.Kinney Aaron M.Eakman rebecca Lassell Wendy Woo Department of Occupational Therapy Colorado State UniversityFort CollinsCO 80523USA Temple Grandin Equine Center Department of Animal SciencesColorado State UniversityFort CollinsCO 80523USA

Background:Evidence-based treatments for service-related health conditions such as posttraumatic stress disorder(PTSD),depression,and traumatic brain injury(TBI)are not effective for all ***-assisted interventions are emerging as an additional treatment modality,but little is known regarding the safe and effective delivery of these *** study aimed to describe the following features of the body of literature concerning equineassisted interventions among veterans:1)veterans who have participated in equine-assisted interventions;2)specific characteristics of equine-assisted interventions in veterans;and 3)the specific characteristics of research on equineassisted interventions in ***:We conducted a systematic mapping review of peer-reviewed literature reporting on equine-assisted interventions among veterans between 1980 and *** of nine databases yielded 3336 unique records,six of which met the inclusion criteria and were *** relevant to the study aims were extracted and ***:Equine-assisted interventions among veterans disproportionately targeted psychosocial outcomes and yielded promising *** detailed methods of EAI varied in the reported studies,ranging from communicating with the horse to mounted *** was also great diversity in outcome *** state of theoretical development regarding the mechanisms by which equine-assisted interventions benefit the veteran population is currently *** provided insufficient detail with respect to the description of the intervention,reasons for attrition,and the dose-response ***:Scientific development of equine-assisted interventions targeting psychosocial outcomes among veterans is warranted to establish their *** outcomes should be expanded,including outcomes more closely aligned with the nature of polytraumatic *** research must also emphasize the theoretical develo

关键词： Veterans Service-related injuries Equine-assisted interventions Posttraumatic stress disorder Systematic mapping review

Geochemistry of the uranium-thurium-bearing granitic rocks and pegmatites of Wadi Haleifiya area,Southeastern Sinai,Egypt

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Chinese Journal Of Geochemistry 2012年第3期31卷 242-259页

作者： El Gharbawy r.I El Maadawy W.M. Faculty of Science Ain Shams UniveristyCairoEgypt Nuclear Materials Authority P.O.Box 030MaadiEgypt

There are two main granitic rocks cropping out in the study area:1) the syn-orogenic granites are moderately weathered,jointed,exfoliated and characterized by low *** rocks are subdivided into tonalite and *** are essentially composed of plagioclase,quartz,biotite,hornblende and potash feldspar;and 2) the post-orogenic granites,characterized by high relief terrain and represented by monzogranite,syenogranite and alkali *** monzogranites suffered hydrothermal alteration in particular along joints,faults,shear zones and fractures,which recorded the highest values of radioactivity,reflecting the role of post-magmatic alteration processes in the enhancement of *** hydrothermal alteration(desilicification and hematitization) resulted in the formation of mineralized(altered) *** altered granites are enriched in TiO 2,Al 2 O 3,FeO T,MnO,MgO,Na 2 O,rb,Sr,Y,Zr,Zn,Ga and Co and depleted in SiO 2,CaO,P 2 O 5,Nb,Pb,Cu,Ni and Cr relative to the fresh *** investigated granites contain basic xenoliths as well as pockets of ***,quartz,plagioclase and sometimes biotite,represent the essential *** accessory minerals like zircon are metamicted reflecting their radiogenic *** alkali granites are characterized by the presence of aegirine,rebeckite and *** syn-and post-orogenic granites show some variations in their bulk chemical *** older granitoids are metaluminous and exhibit characteristics of I-type granites and possess an arc tectonic *** the other hand,the younger granites are peraluminous and exhibit the characteristics of post-collisional *** is interpreted that radioactivity of the studied rocks is mainly controlled by both magmatic and post-magmatic ***,the post-orogenic granites host zoned and unzoned pegmatite *** of these pockets anomalously attain high *** syenogranites and the pegmat

关键词：花岗质岩石伟晶岩西奈半岛地球化学后造山花岗岩东南亚放射性物质碱性花岗岩

Harnessing genetic variation at regulatory regions to fine-tune traits for climate-resilient crops

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Molecular Plant 2022年第2期15卷 222-224页

作者： Diep r.Ganguly Lee T.Hickey Peter A.Crisp Australian research Council Centre of Excellence in Plant Energy Biology Research School of BiologyThe Australian National UniversityActonCanberraACT 2601Australia CSIrO Synthetic Biology Future Science Platform CanberraACTAustralia Queensland Alliance for Agriculture and Food Innovation The University of QueenslandBrisbaneQLD 4072Australia School of Agriculture and Food Sciences The University of QueenslandBrisbaneQLD 4072Australia

Climate change is making it more challenging to meet the food demands of a growing global *** food produc-tion relies on continual crop improvements to generate higher and more stable yields,especially with increasingly unpredictable environments and less arable *** improvement of traits that promote climate resilience and resource utilization,for example,greater photosynthetic capacity,increased nitrogen use efficiency,and optimized root and shoot architecture,repre-sents a promising avenue for engineering crops to yield more with less(Evans and Lawson,2020).A key challenge for crop engineering is optimizing performance in specific environments.

关键词： crops traits environments

Superconvergent Interpolatory HDG Methods for reaction Difusion Equations II:HHO‑Inspired Methods

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Communications on Applied Mathematics and Computation 2022年第2期4卷 477-499页

作者： Gang Chen Bernardo Cockburn John r.Singler Yangwen Zhang College of Mathematics Sichuan UniversityChengdu 610065SichuanChina School of Mathematics University of MinnesotaMinneapolisMNUSA Department of Mathematics and Statistics Missouri University of Science and TechnologyRollaMOUSA Department of Mathematical Science University of DelawareNewarkDEUSA

In Chen et al.(***.81(3):2188–2212,2019),we considered a superconvergent hybridizable discontinuous Galerkin(HDG)method,defned on simplicial meshes,for scalar reaction-difusion equations and showed how to defne an interpolatory version which maintained its convergence *** interpolatory approach uses a locally postprocessed approximate solution to evaluate the nonlinear term,and assembles all HDG matrices once before the time integration leading to a reduction in computational *** resulting method displays a superconvergent rate for the solution for polynomial degree k≥*** this work,we take advantage of the link found between the HDG and the hybrid high-order(HHO)methods,in Cockburn et al.(ESAIM ***.50(3):635–650,2016)and extend this idea to the new,HHO-inspired HDG methods,defned on meshes made of general polyhedral elements,uncovered *** meshes made of shape-regular polyhedral elements afne-equivalent to a fnite number of reference elements,we prove that the resulting interpolatory HDG methods converge at the same rate as for the linear elliptic ***,we obtain superconvergent methods for k≥0 by some *** thus maintain the superconvergence properties of the original *** present numerical results to illustrate the convergence theory.

关键词： Hybrid high-order methods Hybridizable discontinuous Galerkin methods Interpolatory method Superconvergence

Brownian motion and thermophoresis effects on unsteady stagnation point flow of Eyring-Powell nanofluid: a Galerkin approach

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Communications in Theoretical Physics 2020年第12期72卷 71-82页

作者： Z H Khan M Usman T Zubair M Hamid r U Haq State Key Laboratory of Hydraulics and Mountain river Engineering College of Water Resource and HydropowerSichuan UniversityChengdu610065China BIC-ESAT College of EngineeringPeking UniversityBeijing 100871China State Key Laboratory for Turbulence and Complex Systems Department of Mechanics and Engineering SciencePeking UniversityBeijing 100871China Institute of Ocean research Peking UniversityBeijing 100871China School of Mathematical Sciences Peking UniversityBeijing 100871China Department of Mechanics and Engineering Science Fudan UniversityShanghai 200433China Department of Electrical Engineering Bahria UniversityIslamabad CampusIslamabad 44000Pakistan

This article concerns the analysis of an unsteady stagnation point flow of Eyring–Powell nanofluid over a stretching *** influence of thermophoresis and Brownian motion is also considered in transport *** nonlinear ODE set is obtained from the governing nonlinear equations via suitable *** numerical experiments are performed using the Galerkin scheme.A tabular form comparison analysis of outcomes attained via the Galerkin approach and numerical scheme(rK-4)is available to show the credibility of the Galerkin *** numerical exploration is carried out for various governing parameters,namely,Brownian motion,steadiness,thermophoresis,stretching ratio,velocity slip,concentration slip,thermal slip,and fluid parameters,and Hartmann,Prandtl and Schmidt *** velocity of fluid enhances with an increase in fluid and magnetic parameters for the case of opposing,but the behavior is reversed for assisting *** Brownian motion and thermophoresis parameters cause an increase in temperature for both cases(assisting and opposing).The Brownian motion parameter provides a drop-in concentration while an increase is noticed for the thermophoresis *** the outcomes and the behavior of emerging parameters are illustrated *** comparison analysis and graphical plots endorse the appropriateness of the Galerkin *** is concluded that said method could be extended to other problems of a complex nature.

关键词： Eyring-Powell fluid stagnation point flow Brownian motion and thermophoresis Galerkin method

Investigation on the power broadening of uranium transition

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Chinese Journal of Lasers 1992年第2期 47-53页

作者： Huang Wu, Wenjie Fei, Xiangdong Xu, Pinfang Xu,Lin Fei, Guiming Yu, Ziwei Li, Xin Wang(Institute of physical and Chemical,Engineering of Nuclear Industry,P. 0. Box(7) 77,Tianjin 300180,PrC)

By making the power broadening experiments,we have observed and analyzedthe phenomena of power broadening and the central frequency shif of fluorescence for the ura-nium transition 0-169000.38cm-1for the first time.

关键词： Power broadening uranium spectroscopy

SWEET as Sugar： New Sucrose Effluxers in Plants

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Molecular Plant 2012年第4期5卷 766-768页

作者： r. Frank Baker Kristen A. Leach David M. Braun Division of Biological Sciences Interdisciplinary Plant Group Missouri Maize Center University of Missouri 110 Tucker Hall Columbia MO 65211

Photosynthesis leads to the fixation of carbon in leaves and to the accumulation of carbohydrates （e.g., sucrose, starch）. This assimilated carbon must be transported from the leaves （source tissues） to non-photosynthetic organs （sink tissues）, such as roots and seeds. Despite the essentiality of this process in plants, a complete understanding of the actors involved in sucrose export from leaves is lacking. SWEET proteins are a newly identified class of sugar transporters that facilitate dif- fusion of sugars across cell membranes down a concentration gradient. In this perspective, we highlight the recent publica- tion of Chen et al. （2012）, which reports that SWEET proteins transport sucrose across cell membranes, are expressed in a subset of phloem parenchyma cells,

关键词： DISEASE-SUSCEPTIBILITY GENE BACTErIAL-BLIGHT TrANSPOrTErS rICE rESISTANCE rOLES

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泛型编程在面向对象语言中的对比研究

江西师范大学学报（自然科学版） 2018年第3期42卷 304-310页

作者：周卫星左正康王昌晶石海鹤游珍谢武平陶小明江西师范大学计算机信息工程学院江西南昌330022 西师范大学江西省高性能计算重点实验室江西南昌330022

泛型程序设计通过从更高的层次对具体的算法和数据结构进行抽象,提高了软件的可扩展性、复用性和类型安全性,它主要是基于一系列自定义的类型约束而不是仅局限于预定义类型.该文对C++、Concepts C++、Java、C#以及Python等5种不同的、... 详细信息

泛型程序设计通过从更高的层次对具体的算法和数据结构进行抽象,提高了软件的可扩展性、复用性和类型安全性,它主要是基于一系列自定义的类型约束而不是仅局限于预定义类型.该文对C++、Concepts C++、Java、C#以及Python等5种不同的、支持泛型程序设计的面向对象程序设计语言进行综合比较,并执行一个典型的且能够较好支持泛型编程机制的例子来分析这些面向对象语言的特征及对泛型编程机制的支撑程度,从而探寻泛型编程的本质特性,为减少程序开发的冗余、增强程序的可维护性提供参考.

关键词：泛型程序设计类型约束面向对象程序语言泛型机制