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Internal Pressure Sculpting and Speleogenesis in Autogenic Karst

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Journal of Earth Science and Engineering 2013年第7期3卷 461-476页

作者： bryan Booth Karst Research Group University of South Florida Tampa 33612 Florida USA

Understanding the ongoing speleogenic processes that produce sinkholes and control the vital drinking water supplies of Florida and much else of the world is necessary research. This article （and the associated poster presentation） discusses theoretical processes that may act in addition to mass dissolution kinetics in producing voids, conduits and caves in autogenic karst landforms. Possible theoretical factors that affect these speleogenic processes are： microscopic mixing corrosion （low constant flow, low constant flow against current, temperature-induced mixing corrosion, and pressure-induced mixing corrosion in karst matrix）, random dissolution models, simulation of gravity-induced microscopic breakdown, and storm surge effects. Finally, a theoretical model is discussed that unifies these various microscopic processes into a macro-scale process, called internal pressure sculpting. Computer models were designed to illustrate these theoretical processes： Non-calibrated computer models simulating each process discussed in this paper are presented for illustration, as well as the preliminary results of calibrated models depicting random dissolution, mechanical breakdown, and storm surge effects. The theoretical processes discussed and simulated may have major effects on cave morphology. Computer simulations appear to accurately portray the shape and form of some cave features with dissolutional morphologies. Theoretical discussion concludes with a general discussion of possible improvements to the presented models as well as the ability to generalize theoretical processes to hypogenic, halogenic, and autogenic speleogenesis.

关键词： Cave development in limestone mixing corrosion karst computer modeling solutional widening rate speleogenesis.

Hierarchical Linear Modeling in International Marketing Research： A Review with an Application on Innovation and Export in China

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Frontiers of Business Research in China 2015年第2期9卷 135-160页

作者： Kiaohui Yuan Ziliang Deng Ruer-Jer bryan Jean Daekwan Kim School of Business Renmin University of China Beijing 100872 China Department of International Business National Chengchi University Taipei 11605 TaiwanChina College of Business Florida State University Tallahassee FL 32306-1110 USA

While much of international marketing research involves two or more levels, limited work in the international marketing literature uses hierarchical linear modeling to examine different level effects. This study conducts a thorough literature review on hierarchical linear modeling （HLM） in 28 international marketing papers that employed HLM from 2005-2014 and evaluates the use of HLM in these papers on the objects, operating levels, and other issues. We call for more applications of HLM in international marketing research, particularly for research on emerging markets with significant sub-national and institutional variations. The paper provides an illustrative empirical study that employs HLM to test the moderating role of industry-level government subsidies in the relationship between firm innovation and exporter performance in China.

关键词： hierarchical linear modeling (HLM), multilevel modeling,international marketing, China, innovation export subsidy

THE FUTURE SOUND OF CHINA The Conflicting Tides of Digital Streaming and Live Music

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城市漫步（GBA版） 2020年第2期 36-45页

作者： bryan Grogan 不详

关键词： Streaming Music raised

Developing aptamers into tumor diagnostics and therapeutics

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中国肿瘤生物治疗杂志 2008年第4期15卷 301-304页

作者： Jing Mi Bruce A. Sullenger bryan M. Clary Departments of Surgery Duke University Medical Center DurhamNC 27710 USA

Aptamers are small single-stranded nucleic acid molecules that bind a target protein with high affinity and *** to their stability,low toxicity and immunogenicity,as well as improved safety,aptamers are attractive alternatives to antibody and are therefore suitable for in vivo *** are typically isolated,through a process termed SELEX(systematic evolution of ligands by exponential enrichment),from combinatorial libraries with desired *** the present review,the recent non-conventional aptamer selection process will be discussed together with an overview on the aptamer application in cancer diagnosis and therapy.

关键词：肿瘤诊断方法治疗方法蛋白质

Spatiotemporal microRNA profile in peripheral nerve regeneration:miR-138 targets vimentin and inhibits Schwann cell migration and proliferation

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Neural Regeneration Research 2018年第7期13卷 1253-1262页

作者： Travis B.Sullivan Litchfield C.Robert Patrick A.Teebagy Shannon E.Morgan Evan W.Beatty bryan J.Cicuto Peter K.Nowd Kimberly M.Rieger-Christ David J.bryan Department of Translational Research Lahey Hospital & Medical Center Tissue Engineering Laboratory Lahey Hospital & Medical Center Department of Plastic and Reconstructive Surgery Lahey Hospital & Medical Center

While the peripheral nervous system has regenerative ability,restoration of sufficient function remains a *** has been shown to be localized in axonal growth fronts and associated with nerve regeneration,including myelination,neuroplasticity,kinase signaling in nerve axoplasm,and cell migration;however,the mechanisms regulating its expression within Schwann cell（SC） remain *** aim of this study was to profile the spatial and temporal expression profile of micro RNA（mi RNA） in a regenerating rat sciatic nerve after transection,and explore the potential role of mi R-138-5 p targeting vimentin in SC proliferation and migration.A rat sciatic nerve transection model,utilizing a polyethylene nerve guide,was used to investigate mi RNA expression at 7,14,30,60,and 90 days during nerve *** levels of mi RNA expression were determined using microarray analysis and subsequently validated with quantitative real-time polymerase chain *** vitro assays were conducted with cultured Schwann cells transfected with mi RNA mimics and assessed for migratory and proliferative *** top seven dysregulated mi RNAs reported in this study have been implicated in cell migration elsewhere,and GO and KEGG analyses predicted activities essential to wound *** of one of these,mi RNA-138-5 p,into SCs reduced cell migration and *** R-138-5 p has been shown to directly target vimentin in cancer cells,and the luciferase assay performed here in rat Schwann cells confirmed *** results detail a role of mi R-138-5 p in rat peripheral nerve regeneration and expand on reports of it as an important regulator in the peripheral nervous system.

关键词： non-coding RNA neural regeneration nerve guide sciatic nerve transection peripheral nerve injury wound healing Gene Ontology processes Kyoto Encyclopedia of Genes and Genomes pathways microarray luciferase assay

Scanning Mode Application of Neutron-Gamma Analysis for Soil Carbon Mapping

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Pedosphere 2019年第3期29卷 334-343页

作者： Aleksandr KAVETSKIY Galina YAKUBOVA Nikolay SARGSYAN Clyde WIKLE Stephen A. PRIOR Henry Allen TORBERT bryan A. CHIN United States Department of Agriculture-Agricultural Research Service (USDA-ARS) National Soil Dynamics Laboratory Auburn AL 36832 (USA) Auburn University Detection and Food Safety Center Samuel Ginn College of Engineering Auburn AL 36849 (USA)

Soil carbon mapping is extremely useful in assessing the effect of land management practices on soil carbon storage. Applications of neutron-gamma analysis in scanning mode for mapping of soil carbon are discussed. A Global Positioning System(GPS) device and softwares required to simultaneously acquire gamma signals and geographical positions during scanning operations were added to an existing measurement system. The reliability of soil carbon measurements in scanning mode was demonstrated to be in agreement with results acquired from static mode. The error analysis indicated that scanning measurements can be conducted with the same accuracy as static measurements in approximately one fourth the time. To obtain results suitable for mapping analogous to traditional chemical analyses(i.e.,± 0.5 in weight percent or ± 0.5 w%), scanning time over a given site should be ca. 15 min using the current measurement system configuration. Based on this measurement time, a reasonable towing speed of 3–5 km h^-1, the necessity for complete site coverage during scanning, the number of sites(within the surveyed field), and the required total measurement time can be estimated. Soil carbon measurements for 28 field sites(total area ca. 2.5 ha) were conducted in ca. 8 h. Based on acquired data,a soil carbon distribution map was constructed utilizing various softwares. The surveyed field area included an asphalt road that had carbon readings higher than the surrounding land. The clarity with which these carbon-rich zones were delineated on the constructed map represents evidence supporting the veracity of this method. Neutron-gamma analysis technology can greatly facilitate timely construction of soil carbon maps.

关键词： ArcGIS Google Earth Pro IGOR scanning technology soil carbon distribution map soil carbon storage

热力学法在泵性能测试中的应用及与传统方法的比较

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机械工程学报 2015年第10期51卷 189-196页

作者：刘鑫 KARNEY bryan RADULJ Djordje 王正伟清华大学水沙科学与水利水电工程国家重点实验室北京100084 清华大学热能工程系北京100084 多伦多大学土木工程系加拿大多伦多M5S1A4 Hydra Tek&Associates公司加拿大伍德桥L4L8S5

全球范围而言,水泵效率和性能的热力学测试方法大约于十多年前在工业领域开始得到大量应用,但目前在泵站测试中使用还不是很广泛。由于缺少直接的工业应用标准去保证热力学法测试结果的准确可靠,且多数泵站自身又缺乏足够经验来开展独... 详细信息

全球范围而言,水泵效率和性能的热力学测试方法大约于十多年前在工业领域开始得到大量应用,但目前在泵站测试中使用还不是很广泛。由于缺少直接的工业应用标准去保证热力学法测试结果的准确可靠,且多数泵站自身又缺乏足够经验来开展独立研究测试,所以迫切需要一些通用性的指导原则来推动相关领域的进展。通过对多城市多泵站的水泵效率测试和研究,本项目完成了41个泵站的152个城市供水水泵的性能测试。其中57个水泵同时使用了热力学法和传统方法。通过大量的现场测试,并与采用电磁流量计、超声波流量计等传统测试方法的对比,积累了许多关于热力学法和传统方法在水泵性能测试中的经验和技巧;测试研究成果进一步明确了热力学法的适用条件和范围,通过对实测中遇到的各种情况的处理和总结,提出了热力学方法的通用性指导应用原则。

关键词：热力学法水力法水泵效率水泵流量测试

Hydrothermal carbonization of livestock mortality for the reduction of pathogens and microbially-derived DNA

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Frontiers of Environmental Science & Engineering 2017年第3期11卷 107-114页

作者： Thomas F. Ducey Jessica C. Collins Kyoung S. Ro bryan L. Woodbury D. Dee Griffin Coastal Plains Soil Water and Plant Research Center Agricultural Research Service United States Department of Agriculture Florence SC 29501 USA South Carolina Governor's School for Science and Mathematics Hartsville SC 29550 USA U.S. Meat Animal Research Center Agricultural Research Service United States Department of Agriculture Clay Center NE 68933 USA University of Nebraska-Lincoln Great Plains Veterinary Education Center Lincoln NE 68588 USA

Hydrothermal carbonization （HTC）, utilizing high temperature and pressure, has the potential to treat agricultural waste via inactivating pathogens, antibiotic resistance genes （ARG）, and contaminants of emerging concern （CEC） in a environmental and economical manner. Livestock mortality is one facet of agricultural waste that can pose a threat to the surrounding environment. While several methods are utilized to treat livestock mortality, there remains a paucity of data on the elimination of microbially- derived DNA in these treatment practices. This DNA, most notably ARGs, if it survives treatment can be reintroduced in agricultural environments where it could potentially be passed to pathogens, posing a risk to animal and human populations. HTC treatments have been successfully utilized for the treatment of CECs, however very little is understood on how ARGs survive HTC treatment. This study aims to fill this knowledge gap by examining the survivability ofmicrobially-derived DNA in the HTC treatment of livestock mortality. We examined three treatment temperatures （100℃, 150℃, and 200℃） at autogenic pressures at three treatment times （30, 60, and 240 min）. We examined the amplification of a plasmid-bome reporter gene carried by Escherichia coli DH 10B introduced to both beef bone and tissue. Results indicate that while all three temperatures, at all treatment times, were suitable for complete pathogen kill, only temperatures of 150℃ and 200℃ were sufficient for eliminating microbial DNA. These results serve as the basis for future potential HTC treatment recommendations for livestock mortality when considering the elimination of pathogens and ARGs.

关键词： High-temperature carbonization Microbial DNA Livestock mortality

CRUEL BUDDHIST US Producer Talks Making Music With ADHD and Sketching Songs

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城市漫步（上海版、英文） 2020年第3期 28-29页

作者： bryan Grogan 不详

One of the more prolific producers based in China right now,Cruel Buddhist has released a flurry of excellent records over the past few years,stringing together hazy lo-fi hip hop released independently and with local label Eating *** his music stands apart,his story of how he became interested in,and continues to connect with music is just as *** linked up with the American producer to chat about his process.

关键词： string producer continue