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International Journal of Mining Science and Technology 2018年第6期28卷 885-890页

作者： Robert Eades kyle Perry Catherine Johnson Jacob Miller Department of Mining and Nuclear Engineering Missouri University of Science and Technology

The phenomenon of combustible dust explosions is present within many industries. Tests for explosibility of dust clouds per ASTM E1226 use a 20 L explosive chamber that places the combustible dust directly below the dispersion nozzle which generates a thorough mixture for testing purposes. However, in the underground coal mining industry, there are a number of geologic, mining, and regulatory factors that change the deposition scheme of combustible coal dust. This causes the atmosphere of a coal mine to have a variable rock dust-coal dust mixture at the time of ignition. To investigate the impact of this variable atmosphere, a series of lean explosibility tests were conducted on a sample of Pittsburgh Pulverized coal dust. These explosibility tests were conducted in a 38 L chamber with a 5 kJ Sobbe igniter. The 38 L chamber generates a variable air-dust mixture prior to ignition. The test results indicate that the 38 L chamber experiences reduced explosive pressures, and lower explosibility index values when compared to the 20 L chamber.

关键词： Dust explosion Coal mining Coal dust Explosibility testing

Exploring the potential confounder of nitrogen fertilizers in the relationship between pesticide exposures and risk of leukemia: a Poisson regression with *** fixed-effects analysis

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Chinese Journal of Cancer 2017年第11期36卷 665-667页

作者： Keith Fluegge kyle Fluegge Institute of Health and Environmental Research Cleveland OH 44118 USA. New York City Department of Health and Mental Hygiene New York NY 11101.4132 USA.

Research discussing potential environmental toxins that may be related to the etiology of childhood leukemia has been growing. The suspected environmental contaminants include solvents, air pollutants, pesticides, and tobacco smoke. Exposure to various pesticides has come under particular scrutiny, with positive associations with childhood leukemia [1]. Poynter et al. [2] conducted a population-based study assessing the association between self-reported chemical exposures and odds of acute myeloid leukemia (AML) and myelodysplastic syndromes(MDS).

关键词： Research discussing potential environmental

The Challenges of the Virtual Classroom——The Semiotics of Transmedial Literacy in VR Education

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Language and Semiotic Studies 2021年第4期7卷 1-25页

作者： kyle Davidson University of Tartu Estonia

In 2020,the global COVID-19 pandemic required a significant number of students to move their education online,via digital *** use of virtual learning environments,combined with virtual reality technology and avatars,has demonstrated the convergence of current technology and ***,embodiment,and social reality construction are increasingly transmediated,with physical and virtual signs being present for young learners (and their teachers) in their classroom space—for example filters or *** may enable a freedom of expression for some students,offering the ability to explore and express their inner selves without physical ***,there could be a bias inherent to such technology which exacerbates offline inequality and *** example,access to the technology,or the Anglo-centric nature of programming languages which necessitates some level of English language *** the ability to swap gender may be positive for transgender teens,the ability to change race or age is *** these distinctions are made and understood requires an updated model of digital literacy,focusing on the sociology,and semiotic interpretation,of the signs within the virtual/physical transmediated *** is understood as significant in the context of contemporary,online,young learners,is imperative for future identity construction.

关键词： identity online learning gender transmedia avatar

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布鲁斯博物馆美国格林威治

世界建筑导报 2024年第1期39卷 63-67页

作者： Noah Marble Vanessa Smith-Torres kyle Digby Sam Levison Mark Thorburn Max Katz Guan Wang Tim Hursley(摄影) Michael Biondo(摄影) EDR建筑事务所不详

布鲁斯博物馆是一家位于康涅狄格州格林威治的地区性文化机构,拥有多学科藏品和展览项目,将艺术、科学和自然历史融为一体。2014年,在一场全国性设计竞赛之后,布鲁斯博物馆踏上了振兴其园区的征程,以将该机构带入未来。竞赛结束后,设计... 详细信息

布鲁斯博物馆是一家位于康涅狄格州格林威治的地区性文化机构,拥有多学科藏品和展览项目,将艺术、科学和自然历史融为一体。2014年,在一场全国性设计竞赛之后,布鲁斯博物馆踏上了振兴其园区的征程,以将该机构带入未来。竞赛结束后,设计团队领导了一项严格的初步规划研究,深入挖掘博物馆的需求,并为其作为社区资源的能力提供支持。

关键词：布鲁斯设计竞赛康涅狄格州社区资源博物馆展览项目初步规划格林威治

Waste-to-Fuel Technology in Albania——How to Implement a Renewable Energy System in Europe’s Largest Onshore Oilfield

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Journal of Earth Science 2019年第6期30卷 1311-1325页

作者： Besmir Buranaj Hoxha Dael Dervishi kyle Sweeney PetroFluids LLC Houston TX 77084USA McCain Institute Washington D.C.20006USA Fulbright Program&UNDP PrishtinaThe Republic of Kosovo

Albania has historically been known to have an active but challenging drilling activity that demands the most innovative technology to develop,predominantly,medium-heavy oil *** recent efforts have been made by the government to stimulate and expand the largest onshore European oilfield,technical and economical obstacles are *** obstacles make it difficult to fully develop reliable and profitable hydrocarbon bearing zones in a downturn economy,especially since Albanian oil can be costly to produce and *** to these typical issues that affect many local energy sectors,many developed countries diversify their energy production to avoid strict dependency on crude *** emblematic and modern option that is extensively gaining popularity in Europe focuses on renewable energy from sophisticated recycling *** Albania is a relatively"green"country when it pertains to its electricity production(97%hydropower and 3%fossil fuels),it has yet to develop energy-recycling programs that it can salvage for self-sustainable energy *** past years have seen a conscious revitalization and stimulation in the mentality of green economy in ***,in comparison to the rest of"western Europe"that are leading world examples in efficient recycling,it is significantly lagging with initial strides just now focusing on aligning national legislations with current EU ***,two crucial reasons that should motivate Albania to investigate new applications for energy recycling are:(1)alternatives to crude oil and petroleum products that can be supplemental and provide stable access to fossil fuels;(2)industrial and municipal recycling via waste management to reprocess waste and produce industrial raw material-spawning the emergence of a"circular economy"to develop the backbone needed to strengthen the industrial and manufacturing markets for a self-sustaining ***,in this paper,the topic that will be addressed,giv

关键词： renewable energy pyrolysis waste-to-fuel technology circular economy plastic-to-fuel alternative energy

Solutions to Forced and Unforced Lin–Reissner–Tsien Equations for Transonic Gas Flows on Various Length Scales

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Communications in Theoretical Physics 2017年第3期67卷 309-316页

作者： kyle A.Theaker Robert A.Van Gorder Department of Mathematics University of Central Florida Mathematical Institute University of Oxford Andrew Wiles Building Radcliffe Observatory Quarter

The Lin–Reissner–Tsien equation is useful for studying transonic gas flows, and has appeared in both forced and unforced forms in the literature. Defining arbitrary spatial scalings, we are able to obtain a family of exact similarity solutions depending on one free parameter in addition to the model parameter holding the scalings. Numerical solutions compare favorably with the exact solutions in regions where the exact solutions are valid. Mixed wave-similarity solutions, which describe wave propagation in one variable and self-similar scaling of the entire solution, are also given,and we show that such solutions can only exist when the wave propagation is sufficiently slow. We also extend the Lin–Reissner–Tsien equation to have a forcing term, as such equations have entered the physics literature recently. We obtain both wave and self-similar solutions for the forced equations, and we are able to give conditions under which the force function allows for exact solutions. We then demonstrate how to obtain these exact solutions in both the traveling wave and self-similar cases. There results constitute new and potentially physically interesting exact solutions of the Lin–Reissner–Tsien equation and in particular suggest that the forced Lin–Reissner–Tsien equation warrants further study.

关键词： Lin-Reissner-Tsien equation similarity transform nonlinear waves exact solutions

Strong intraspecific trait variation in a tropical dominant tree species along an elevational gradient

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Plant Diversity 2020年第1期42卷 1-6页

作者： Wumei Xu kyle W.Tomlinson Jie Li Plant Phylogenetics and Conservation Group Center for Integrative ConservationXishuangbanna Tropical Botanical GardenChinese Academy of SciencesKunming 650223China Community Ecology and Conservation Group Center for Integrative ConservationXishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla 666303China

Functional trait variation of plant species includes both inter-and intraspecific variation;however,traitbased plant ecology generally considers only interspecific variation while ignoring intraspecific *** reason for this neglect is that intraspecific variation may be negligible when compared to interspecific variation;however,direct comparisons between inter-and intraspecific variation of plant species are lacking,especially in tropical *** we investigated intraspecific leaf trait variation(leaf area,specific leaf area,leaf thickness,leaf density,leaf chlorophyll content) of Pittosporopsis kerrii Craib(Icacinaceae),the most abundant tree species in the Xishuangbanna tropical seasonal rainforest in southwestern China,along an elevational gradient(703-824 m).We found a substantial range of intraspecific variation in *** that was never less than 22.1% of range of the interspecific variation among 462 tree species reported before in the same ***,with increased elevation,both leaf thickness and density increased and specific leaf area decreased *** could be more important for the individuals of *** to produce thicker and denser leaves to tolerate environmental stress(e.g,soil water availability) rather than having high growth rates at the places with higher elevation in the Xishuangbanna tropical seasonal rainforest.

关键词： Functional traits Intraspecific variation Trade-off Tropical seasonal rainforest Xishuangbanna

Functional impact of microRNA regulation n models of extreme stress adaptation

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Journal of Molecular Cell Biology 2018年第2期10卷 93-101页

作者： kyle K. Biggar Kenneth B. Storey Institute of Biochemistry & Department of Biology Carleton University Ottawa ON K1S 5B6 Canada

When confronted with severe environmental stress, some animals are able to undergo a substantial reorganization of their cellular environment that enables long-term survival. One molecular mechanism of adaptation that has received considerable attention in recent years has been the action of reversible transcriptome regulation by microRNA. The implementation of new computational and high-throughput experimental approaches has started to uncover the vital contributions of microRNA towards stress adaptation. Indeed, recent studies have suggested that microRNA may have a major regulatory influence over a number of cellular processes that are essential to prolonged environmental stress survival. To date, a number of studies have highlighted the role of microRNA in the regulation of a metabolically depressed state, documenting stress-responsive microRNA expression during mammalian hibernation, frog and insect freeze tolerance, and turtle and marine snail anoxia tolerance. These studies collectively indicate a conserved principle of microRNA stress response across phylogeny. As we are on the verge of dissecting the role of microRNA in environmental stress adaptation, this review summarizes recent research advances and the hallmark expression patterns that facilitate stress survival.

关键词： hypometabolism metabolism temperature metabolic rate depression stress response

Theoretical analysis of spectral lineshapes from molecular dynamics

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npj Computational Materials 2019年第1期5卷 430-441页

作者： Andrew Cupo Damien Tristant kyle Rego Vincent Meunier Department of Physics Applied Physicsand AstronomyRensselaer Polytechnic InstituteTroyNYUSA

Conventional methods for calculating anharmonic phonon properties are computationally *** address this issue,a theoretical approach was developed for the accelerated calculation of vibrational lineshapes for spectra obtained from finite-time molecular *** method gives access to the effect of anharmonicity-induced frequency shift and lifetime,as well as simulation *** a toy model we demonstrate at least an order of magnitude reduction in the number of simulation steps needed to obtain converged vibrational properties in nearly all cases considered as compared to the standard extraction *** theory is also illustrated for graphene,hexagonal boron nitride,and silicon at the density functional theory level,with up to nearly a factor of 9 reduction in the required simulation time to reach convergence in the vibrational frequencies and *** general,we expect the newly developed method to outperform the standard procedure when the anharmonicity is sufficiently weak so that well-defined renormalized phonon quasiparticles *** extension of signal analysis to material vibrations represents a state-of-the-art advance in calculating temperature-dependent phonon properties and could be implemented in computational materials discovery packages that search for thermoelectric materials for instance,since the thermal conductivity contribution to ZT depends strongly on these characteristics.

关键词： calculating harmonic analysis

The trajectory of hybrid and hydrogen technologies in North American heavy haul operations

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Railway Engineering Science 2021年第3期29卷 233-247页

作者： Kevin Oldknow kyle Mulligan Gordon McTaggart-Cowan Simon Fraser University SurreyBCCanada Canadian Pacific CalgaryABCanada

The central aim of this paper is to provide an upto-date snapshot of hybrid and hydrogen technology-related developments and activities in the North American heavy haul railway setting,placed in the context of the transportation industry more *** overview of relevant alternative propulsion technologies is provided,including a discussion of applicability to the transportation sector in general and heavy haul freight rail *** is followed by a discussion of current developments and research in alternative and blended fuels,discussed again in both general and specific *** factors and technical considerations for heavy haul applications are reviewed,followed by a discussion of non-technical and human factors that motivate a move toward clean energy in North American Heavy Haul ***,current project activities are described to provide a clear understanding of both the status and trajectory of hybrid and hydrogen technologies in the established context.

关键词： Transportation Propulsion Hydrogen Hybrid Alternative fuels