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Volumetric lattice Boltzmann method for pore-scale mass diffusionadvection process in geopolymer porous structures

Journal of Rock Mechanics and Geotechnical Engineering 2024年第6期16卷 2126-2136页

作者： Xiaoyu Zhang Zirui Mao Floyd W.Hilty Yulan Li Agnes Grandjean Robert Montgomery Hans-Conrad zur Loye Huidan Yu Shenyang Hu Purdue university IndianapolisIN46202USA Pacific northwest national Laboratory RichlandWA99352USA CEA DESISECDMRCUniv.MontpellierMarcouleFrance Department of Chemistry and Biochemistry University of South CarolinaColumbiaSC29208USA

Porous materials present significant advantages for absorbing radioactive isotopes in nuclear waste *** improve absorption efficiency in nuclear waste treatment,a thorough understanding of the diffusion-advection process within porous structures is essential for material *** this study,we present advancements in the volumetric lattice Boltzmann method(VLBM)for modeling and simulating pore-scale diffusion-advection of radioactive isotopes within geopolymer porous *** structures are created using the phase field method(PFM)to precisely control pore *** our VLBM approach,we introduce a concentration field of an isotope seamlessly coupled with the velocity field and solve it by the time evolution of its particle population *** address the computational intensity inherent in the coupled lattice Boltzmann equations for velocity and concentration fields,we implement graphics processing unit(GPU)*** of the developed model involves examining the flow and diffusion fields in porous ***,good agreement is observed for both the velocity field from VLBM and multiphysics object-oriented simulation environment(MOOSE),and the concentration field from VLBM and the finite difference method(FDM).Furthermore,we investigate the effects of background flow,species diffusivity,and porosity on the diffusion-advection behavior by varying the background flow velocity,diffusion coefficient,and pore volume fraction,***,all three parameters exert an influence on the diffusion-advection *** background flow and diffusivity markedly accelerate the process due to increased advection intensity and enhanced diffusion capability,***,increasing the porosity has a less significant effect,causing a slight slowdown of the diffusion-advection process due to the expanded pore *** comprehensive parametric study provides valuable insights into the kinetics of isotope

关键词： Volumetric lattice Boltzmann method(VLBM) Phase field method(PFM) Pore-scale diffusion-advection nuclear waste treatment Porous media flow Graphics processing unit(GPU) parallelization

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Inhibitory effects of Zengshengping fractions on DMBA-induced buccal pouch carcinogenesis in hamsters

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Chinese Medical Journal 2012年第2期125卷 332-337页

作者： Guan Xiao-bing Sun Zheng Chen Xiao-xin Wu Hong-ru Zhang Xin-yan Capital Med univ Sch Stomatol Dept Periodontol & Oral Med Beijing 100050 Peoples R China n carolina Cent univ JLC BBRI Canc Res Program Durham NC 27707 USA

Background Zengshengping （ZSP） tablets had inhibitory effects on oral precancerous lesions by reducing the incidence of oral ***,the severe liver toxicity caused by systemic administration of ZSP limits the long-term use of this anti-cancer *** purpose of this study was to evaluate the tumor inhibitory effects due to the topical application of extracts from ZSP,a Chinese herbal drug,on 7,12-dimethlbenz（a）anthracene （DMBA） induced oral tumors in *** study also investigated the anti-cancer mechanisms of the ZSP extracts on oral *** DMBA （0.5%） was applied topically to the buccal pouches of Syrian golden hamsters （6-8 weeks old） three times per week for six weeks in order to induce the development of oral *** fractions of ZSP were either applied topically to the oral tumor lesions or fed orally at varying dosages to animals with oral tumors for 18 *** volume was measured by histopathological *** cell proliferation was evaluated by counting BrdU labeled cells and by Western blotting for mitogen-activated protein kinase （MAPK） protein *** protein levels of apoptosis marker Caspase-3 and regulator Bcl-2 protein were also measured by Western *** Topical application of DMBA to the left pouch of hamsters induced oral tumor *** treated with DMBA showed a loss in body weight while animals treated with ZSP maintained normal body *** the ZSP n-butanol fraction and water fraction significantly reduced tumor volume by 32.6% （P 〈0.01） and 22.9% （P 〈0.01）*** application of ZSP also markedly decreased the BrdU-positive cell numbers in oral tumor lesions and reduced the expression level of *** addition,ZSP promoted tumor cell apoptosis by increasing Caspase-3 expression but decreasing Bcl-2 protein *** The n-butanol and water fractions of ZSP are effective at inhibiting tumor cell proliferation and stimulating apoptosis in ora

关键词： Zengshengping chemoprevention oral cancer, proliferation apoptosis

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THE DYnAMICS FOR THE PRIME PRInCIPLECLASSICAL AnD QUAnTUM CHAOS

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Acta Mathematica Scientia 1989年第1期9卷 93-107页

作者：蒋春暄王宁 Dept. of Math. Western Carolina Univ. Cullowhee NC 28723 USA

In this paper we study the dynamics for the prime principle. The p-nonlinear equations are derived from the prime principle. It defines the p-chaotic functions and studies the local solutions and global stability for the p-nonlinear equations. It suggests a new method for studying the nonlinear equations that studying the stability and instability of the p-nonlinear equations is transformed into studying the stability and instability for the nonliner terms of de~A/dt in the chaotic equations.

关键词： ab Th THE DYnAMICS FOR THE PRIME PRInCIPLECLASSICAL AnD QUAnTUM CHAOS 鲁一口口一刀刃一兀一

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THE　STRUCTURAL　ELUCIDATIOn　AnD　ABSOLUTE　COnFIGURATIOnS　OF　TWO　nEW　POLYOXYGEnATED　CYCLOHEXEnES　FROM　UVARIA　GRAnDIFLORA　ROXB．

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Chinese Chemical Letters 1996年第3期7卷 241-244页

作者： Pan, XP Yu, DQ Lee, KH BEIJInG UnIOn MED COLL BEIJING 100050PEOPLES R CHINA univ n carolina SCH PHARMNAT PROD LABDIV MED CHEM & NAT PRODCHAPEL HILLNC 27599 CHInESE ACAD MED SCI INST MAT MEDBEIJING 100050PEOPLES R CHINA

Two new polyoxygenated cyclohexenes,named uvarigranol E (I) andF(VII),were isolated from the rhizome of Uvaria grandiflora. On the basis ofspectral analysis and chemical derivatizations, including preparation of Mosheresters,the structures of I and VII were established as IR-acetoxymethyl-l,2Sdihydroxy-3 R,6S-dibenzoyloxy-cyclohex-4-ene and IR-hydroxymethyl-l,2Sdihydroxy-3R,6S-dibenzoyloxy cyclohex-4-ene.

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“nonwoven” Versus “Engineered Fabric”: the Impact These Terms Have on the 15-to 25-Year-Old Females' Intent to Purchase

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Journal of Donghua university(English Edition) 2007年第2期24卷 226-229页

作者： DUTTOn Kathryn C ISTOOK Cynthia Department of Textile & Apparel Technology & Management North Carolina State University

Since the fall of 2004, textile and apparel students at a United States public university have been designing apparel with nonwoven fabrics. Over the last two years, the students' designs have sparked interest in the industry which has begun to create new and innovative fabric designs. The industry, however, still struggles over the best name for the fabric. This sparked the research question, "What impact does the term 'nonwoven' or 'engineered fabric' have on a 15- to 25-year-old's intent to purchase a garment?"Through a convenience sampling method, an online questionnaire was distributed to 15- to 25-year-old United States females. The questionnaire included questions regarding demographics and psychographics, and asked respondents to choose garments they would intend to purchase based on known attributes such as style, brand, price, place, and fabrication and fiber content. There were a total of 14 garments, seven tops and seven bottoms. Four of these garments, two tops and two bottoms were constructed of nonwoven *** respondents accepted the nonwoven fabrics when shown in garments in an online setting. This demonstrates that visually, these fabrics are comparable to traditional woven and knit fabrics. The "nonwoven" polyester and nylon blend fabric increased in popularity when the respondents were told the fabrication and fiber content. However, the "engineered" polyester and polyethylene blend fabric dropped to last place when fabrication and fiber content were known. This indicates that 15- to 25-year-old respondents do not understand or are not interested in fibers or fabrications described as "engineered fabric" with a polyester/polyethylene blend. More research will have to be done to determine if the fabrication term "engineered fabric" or if the polyester/polyethylene blend fiber content caused a lack of interest or decreased intent to *** has currently begun to determine the right combination of fiber content and fiber size to deve

关键词：非纺织服装时尚服装设计设计风格

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Call for Papers Special Issue on Big Data Computing and Communications

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Tsinghua Science and Technology 2015年第3期20卷 316-316页

作者： Tang, Shaojie Mao, Xufei Ge, Yong Wang, Yu Li, Xiang-Yang univ Texas Dallas Dallas TX 75230 USA Tsinghua univ Beijing Peoples R China univ n carolina Charlotte NC 28223 USA IIT Chicago IL 60616 USA

Tsinghua Science and Technology was started publication in 1996. It is an international academic journal sponsored by Tsinghua university and is published bimonthly. This journal aims at presenting the up-to-date scientific achievements in computer science, electronic engineering, and other IT fields. It is indexed by EI and other abstracting indexes. From 2012, the journal enters into IEEE Xplore Digital Library and all papers published there are freely downloadable.

关键词： Call for Papers Special Issue on Big Data Computing and Communications

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Capelli identity on multiparameter quantum linear groups

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Science China Mathematics 2018年第2期61卷 253-268页

作者： naihuan Jing Jian Zhang Department of Mathematics Shanghai University Department of Mathematics North Carolina State University Institute of Mathematics and Statistics University of Sao Paulo

A quantum Capelli identity is given on the multiparameter quantum general linear group based on the(p_(ij),u)-condition. The multiparameter quantum Pfaffian of the(p_(ij), u)-quantum group is also introduced and the transformation under the congruent action is given. Generalization to the multiparameter hyper-Pfaffian and relationship with the quantum minors are also investigated.

关键词： multiparameter quantum groups q-determinants quasi-center Capelli identity q-Pfaffians qhyper-Pfaffians

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Female and male visually based mate preferences are consistent with reproductive isolation between populations of the Lake Malawi endemic Labeotropheus fuelleborni

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Current Zoology 2010年第1期56卷 65-72页

作者： Michael J.PAUERS Timothy J.EHLInGER Jeffrey S.McKInnOn Department of Biological Sciences The University of Wisconsin-Milwaukee Division of natural and Health Sciences Carroll University Department of Biology East Carolina University

Sexual selection via female mate choice is thought to have played a key role in the speciation of haplochromine cichlids,but a dominant role for visual signals in such processes has lately been called into question. In addition, the possible role ofmale mating preferences in haplochromine speciation has been little studied. We studied patterns of both female and male matechoice, based exclusively on visual signals, in order to evaluate potential reproductive isolation between two populations of theLake Malawi haplochromine Labeotropheus fuelleborni. In the first experiment, females were allowed to choose between twomales, one from the same population and the other allopatric with respect to the female. Females in this experiment respondedmore frequently to males from their own population. Similarly, the males in these trials displayed more frequently when presentedwith females of their own population. In the second experiment, a female was allowed to choose between two males, either bothfrom her own population or both allopatric. In these trials, both males and females from the Katale population interacted significantlymore frequently in settings in which all three individuals were from the same population ('same-population trios'), and those fromthe Chipoka population showed a similar trend. Thus, patterns in both male and female courtship behavior suggest that visual signalscontribute to at least incipient reproductive isolation between populations of L.

关键词：生殖隔离马拉维种群视觉男性女性

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农业排水管理对氮流失于地表水的影响(英文)

农业排水管理对氮流失于地表水的影响(英文)

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2009水资源与可持续发展高层论坛

作者： R.Wayne Skaggs Mohamed A.Youssef W.n.Reynolds Dist.univ.Professor and Assistant Professor respectively North Carolina State UniversityRaleighNC27695-7625

＜正＞nitrogen losses from drained agricultural lands are a principal source of excess nitrogen（n） in streams and *** Water Management（DWM） or Controlled Drainage（CD） can be used to significantly reduce n losses in drainage waters while conserving water and potentially increasing crop *** research conducted by a number of investigators on a wide range of soils and locations has shown that CD reduced n losses by 18 to 85 percent compared to conventional *** of results of the various studies indicates that the difference in effectiveness of CD among soils and sites is primarily due to differences in its effect on seepage,and whether the seepage water passes through dentirified *** leads to the conclusion that research to determine the effectiveness of CD should be conducted on field size or larger units,such that the effect of lateral and vertical seepage will be appropriately *** simulation model DRAInMOD was used to predict the long-term performance of CD for a sandy loam soil in eastern north *** reduced the 35-year average annual predicted n losses in drainage water by 37%for continuous corn and by 34%for a corn-wheat-soybean rotation. Both predicted n loads in drainage water and the reduction of those loads in response to CD varied widely from year to *** annual n loads for conventional drainage on continuous corn varied from 12.3 to 87.3 kg/*** reduced the predicted annual n loads in drainage water by 18 to 58%over the 35 year period.

关键词： Controlled Drainage Water Quality DRAInMOD nitrogen Models

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A Single Transcript CRISPR-Cas9 System for Efficient Genome Editing in Plants

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Molecular Plant 2016年第7期9卷 1088-1091页

作者： Tang, Xu Zheng, Xuelian Qi, Yiping Zhang, Dengwei Cheng, Yan Tang, Aiting Voytas, Daniel F. Zhang, Yong univ Elect Sci & Technol China Sch Life Sci & Technol Dept Biotechnol Chengdu 610054 Peoples R China univ Minnesota Dept Genet Cell Biol & Dev Minneapolis MN 55455 USA univ Minnesota Ctr Genome Engn Minneapolis MN 55455 USA East carolina univ Dept Biol Greenville NC 27834 USA

The Streptococcus pyogenes CRISPR-Cas9 system effectively mediates RnA-guided DnA double-strand breaks and is used for genome editing in many different organisms, including plants （Puchta, 2016）. CRISPR-Cas9 is a two-component system in which the Cas9 protein is expressed from a Pol II promoter （Lowder et al., 2015）. In contrast, the sgRnAs are typically expressed from Pol III promoters, such as U6 and U3.

关键词： system multiple heterologous

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