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Data analytics and parallel-coordinate materials property charts

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npj Computational materials 2018年第1期4卷 631-638页

作者： jeffrey m.Rickman Department of materials Science and Engineering and Department of Physics Lehigh UniversityBethlehemPA 18015USA

It is often advantageous to display material properties relationships in the form of charts that highlight important correlations and thereby enhance our understanding of materials behavior and facilitate materials ***,in many cases,these correlations are highly multidimensional in nature,and one typically employs low-dimensional cross-sections of the property space to convey some aspects of these *** overcome some of these difficulties,in this work we employ methods of data analytics in conjunction with a visualization strategy,known as parallel coordinates,to represent better multidimensional materials data and to extract useful relationships among *** illustrate the utility of this approach by the construction and systematic analysis of multidimensional materials properties charts for metallic and ceramic *** charts simplify the description of high-dimensional geometry,enable dimensional reduction and the identification of significant property correlations and underline distinctions among different materials classes.

关键词： properties. property analytic

INVARIANCE AND STABILITY OF THE PROFILE EQUATIONS OF GEOmETRIC OPTICS

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Acta mathematica Scientia 2011年第6期31卷 2141-2158页

作者： Guy mtivier jeffrey Rauch Institut de mathmatiques de Bordeaux Universit de Bordeaux Department of mathematics University of Michigan

The profile equations of geometric optics are described in a form invariant under the natural transformations of first order systems of partial differential equations. This allows us to prove that various strategies for computing profile equations are equivalent. We prove that if L generates an evolution on L2 the same is true of the profile equations. We prove that the characteristic polynomial of the profile equations is the localization of the characteristic polynomial of the background operator at （y, dφ（y）） where φ is the background phase. We prove that the propagation cones of the profile equations are subsets of the propagation cones of the background operator.

关键词： geometric optics profile equation localisation vector bundles propagation cones

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Arabidopsis thaliana histone deacetylase1(AtHD1)is localized in euchromatic regions and demonstrates histone deacetylase activity in vitro

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Cell Research 2006年第5期16卷 479-488页

作者： Paulus m Fong Z jeffrey Chen Department of Soil and Crop Sciences Texas A&M UniversityCollege StationTX 77843USA molecular Cell and Developmental Biology University of Texas at AustinAustinTX78712USA

Arabidopsis thaliana histone deacetylase 1 (AtHD1 or AtHDA19),a homolog of yeast RPD3,is a global regulator ofmany physiological and developmental processes in *** spite of the genetic evidence for a role of AtHD1 in plantgene regulation and development,the biochemical and cellular properties of AtHD1 are poorly *** we reportcellular localization patterns of AtHD1 in vivo and histone deacetylase activity in *** transient and stable expres-sion of a green fluorescent protein (GFP)-tagged AtHD1 in onion cells and in roots,seeds and leaves of the transgenicArabidopsis,respectively,revealed that AtHD1 is localized in the nucleus presumably in the euchromatic regions andexcluded from the *** localization patterns of AtHD1 are different from those of AtHD2 and AtHDA6 thatare involved in nucleolus formation and silencing of transgenes and repeated DNA elements,*** addition,a histone deacetylase activity assay showed that the recombinant AtHD1 produced in bacteria demonstrated a specifichistone deacetylase activity in *** data suggest that AtHD1 is a nuclear protein and possesses histone deacetylaseactivities responsible for global transcriptional regulation important to plant growth and development.

关键词： Arabidopsis histone deacetylase RPD3 subcellular localization gene silencing chromatin

Effects of ambient DIN:DIP ratio on the nitrogen uptake of harmful dinoflagellate Prorocentrum minimum and Prorocentrum donghaiense in turbidistat

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Chinese Journal of Oceanology and Limnology 2011年第4期29卷 746-761页

作者：李纪 Patricia m. GLIBERT jeffrey A. ALEXANDER University of maryland Center for Environmental Science Horn Point Laboratory PO Box 775 Cambridge MD 21613 USA

The effects of varying nitrogen （N）： phosphorus （P） ratios on the growth and N-uptake and assimilation of the harmful dinoflagellates Prorocentrum minimum and Prorocentrum donghaiense were examined in turbidistat culture experiments. Algal cultures were supplied with media containing PO4^3- in various concentrations to obtain a wide range of N：P ratios. Experiments to determine rates of N uptake and assimilation of different N sources （NO^3-, NH4^＋, urea and glycine by P. minimum and NO3^-, NH4^＋ by P. donghaiense） were conducted using ^15-N tracer techniques at each N：P ratio. The growth rates suggested nutrient limitation at both high and low N：P ratios relative to the Redfield ratio. On a diel basis, the growth of both species was regulated by the light-dark cycle, which may be a result of regulation of both lightdependent growth and light-independent nutrient uptake. maximum growth rates of both species always occurred at the beginning of light phase. In P-rich medium （low N：P ratio）, both species had higher N assimilation rates, suggesting N limitation. Low assimilation coefficients at high N：P ratios suggested P limitation of N uptake and assimilation. NO3 ^-and NH4^＋ contributed more than 90% of the total N uptake of P. minimum. Reduced N sources were more quickly assimilated than NO3^-. Highest average daily growth rates were recorded near an N：P ratio of 12 for both species. The N uptake rates of cultures at N：P ratios near Redfield ratio were more balanced with growth rates. The linkage between growth rates and N uptake/assimilation rates were conceptually described by the variation of cell N quota. The N：P ratios affect the N uptake and growth of Prorocentrum spp., and may regulate their bloom progression in eutrophic ecosystems.

关键词： harmful dinoflagellate N:P ratio nitrogen uptake continuous culture Prorocentrum spp

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Pain management strategies in penile implantation

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Asian Journal of Andrology 2020年第1期22卷 34-38页

作者： jeffrey L Ellis Andrew m Higgins Jay Simhan Department of Urology Einstein Healthcare NetworkDivision of Urologic OncologyDepartment of Surgical OncologyFox Chase Cancer CenterPhiladelphiaPA 19141 USA

The opioid epidemic continues to be a serious public health *** have pointed to prescription drug misuse as a nidus for patients to become addicted to opioids and as such,urologists and other surgical subspecialists must critically define optimal pain management for the various procedures performed within their respective *** pain following penile prosthesis implantation remains a unique challenge for urologists,given the increased pain patients commonly experience in the postoperative *** most of the existing urological literature focuses on interventions performed in the operating room,there are many studies that examine the role of preoperative adjunctive pain medicine in diminishing postoperative narcotic *** are relatively few studies looking at postoperative strategies for managing pain in prosthetic surgery with follow-up past the immediate *** review assess the various strategies employed for managing pain following penile implantation through the lens of the current state of the opioid crisis,thus examining how urologists can responsibly treat pain without contributing to the growing threat of opioid addiction.

关键词： analgesia epidemic opioid pain prosthetic

The pervasive effects of lighting environments on sensory drive in bluefin killifish： an investigation into male/male competition, female choice, and predation

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Current Zoology 2018年第4期64卷 499-512页

作者： Lisa D. mITCHEm Shannon STANIS Nicholas m. sutton Zachary TURNER Rebecca C. FULLER School of Integrative Biology University of Illinois Urbana IL 61801 USA Department of Biology University of Virginia Charlottesville VA 22904 USA Department of mathematics University of Illinois Urbana IL 61801 USA

Sensory drive predicts that the conditions under which signaling takes place have large effects on signals, sensory systems, and behavior. The coupling of an ecological genetics approach with sen sory drive has been fruitful. An ecological genetics approach compares populations that experi ence different environments and asks whether population differences are adaptive and are the result of genetic and/or environmental variation. The multifaceted effects of signaling environ ments are wellexemplified by the bluefin killifish. In this system, males with blue anal fins are abundant in tanninstained swamps that lack UV/blue light but are absent in clear springs where UV/blue light is abundant. Past work indicates that lighting environments shape genetic and envir onmental variation in color patterns, visual systems, and behavior. Less is known about the select ive forces creating the across population correlations between UV/blue light and the abundance of blue males. Here, we present three new experiments that investigate the roles of lighting environ ments on male competition, female mate choice, and predation. We found strong effects of lighting environments on male competition where blue males were more likely to emerge as dominant in teastained water than in clear water. Our preliminary study on predation indicated that blue males may be less susceptible to predation in teastained water than in clear water. However, there was little evidence for female preferences favoring blue males. The resulting pattern is one where the effects of lighting environments on genetic variation and phenotypic plasticity match the direction of selection and favor the expression of blue males in swamps.

关键词： Lucania goodei adaptive plasticity intrasexual selection male competition private communication predation

Salinization:the ultimate threat to temperate lakes,with particular reference to Southeastern Wisconsin(USA)

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Chinese Journal of Oceanology and Limnology 2015年第6期33卷 1461-1475页

作者： jeffrey A.THORNTON Thomas m.SLAWSKI Hebin LIN International Environmental management Services Ltd. Watershed Services Coordinator The Meadows Center for Water and the EnvironmentTexas State University601 University DriveSan MarcosTX 78666United States of America Graduate School of Human Development and Environment Kobe University3-11 TsurukabutoNada-kuKobeHyogo 657 8501Japan Southeastern Wisconsin Regional Planning Commission W239 N1812 Rockwood DriveP.O.Box 1607WaukeshaWI 53187-1607United States of America

many lakes in Southeastern Wisconsin(the metropolitan-milwaukee area) are gradually becoming increasingly "salty".While these waterbodies would not be considered presently to be saline lakes,there has been a rapid increase in the chloride concentrations in most of these lakes over the last 30 years,with the lakes increasing from a mean chloride concentration of about 19 mg/L to over 100 mg/L in some *** ecological impacts can be expected when chloride values exceed 250 mg/L,the rate of increase presents a basis for concern,especially since the underlying geology of the region is based on limestone/dolomite which is deficient in ***,the origin of the chlorides is anthropogenic:human and industrial wastewaters(treatment of which has effected improvements in trophic status but has not affected other water-borne contaminants) and winter de-icing practices based upon large quantities of sodium chloride are major contributors to the increasing concentrations of chloride in the region's *** taking remedial measures,the rate of salinization is expected to continue to increase,resulting,ultimately,in the alteration of the freshwater systems in the region.

关键词： salinization temperate lakes chloride concentrations salt management

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THE ROAD TO PLATINUm Using the USGBC’s LEED-EB® Green Building Rating System to Retrofit the U.S. Environmental Protection Agency’s Region 10 Park Place Office Building

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Journal of Green Building 2010年第2期5卷 55-75页

作者： jeffrey m.Keeton University of Washington

According to the *** Building Council(USGBC),buildings account for a significant amount of environmental *** building sector is the number one producer of global CO_(2) emissions in the U.S.,followed by the transportation and industrial sectors.1(See Figure 1 for the environmental impact of all ***.)The concept of green buildings represents a major paradigm shift in the architectural,construction,and engineering *** society increasingly switches its appreciation of buildings from merely size and aesthetics toward environmental stewardship and efficiency,the USGBC’s LEED Green Building Rating System has become increasingly popular to *** its inception in 2000,the LEED system has been promoting and monitoring green building practices throughout the United *** a four-tiered rating scheme including LEED Certified,LEED Silver,LEED Gold,and LEED Platinum,the system currently has 35,000 projects already on their way toward certification.2 In particular,the LEED for Existing Buildings(LEED-EB)system looks to retrofit existing buildings into those that are more sustainable,efficient,and environmentally *** so significantly reduces the demand for new resources,as construction managers can recycle and reuse building materials and incorporate them into new *** truly is the definition of green building and is the way of the *** implementing green building practices,many of the adverse environmental impacts of buildings can be dramatically reduced,often for only a one to two percent initial cost premium over the price of conventional construction practice.3 Several environmental benefits of green buildings include improving air and water quality,conserving natural resources,and becoming more energy *** have shown that green buildings,compared to normal buildings,can reduce energy use by 24–50 percent,CO_(2) emissions by 33–39 percent,water use by 40 percent,and solid waste by 70 percent.4(Se

关键词： LEED-EB EPA Environmentally Preferable Purchasing green building embodied energy concrete supplementary cementitious materials

Stability of Two Conservative,High-Order Fluid-Fluid Coupling methods

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Advances in Applied mathematics and mechanics 2019年第6期11卷 1287-1338页

作者： jeffrey m.Connors Robert D.Dolan University of Connecticut Department of MathematicsStorrsCT 06269USA

This paper investigates two methods of coupling fluids across an interface,motivated by air-sea interaction in application *** method is for sequential configurations,where the air code module in invoked over some time interval prior to the sea *** other method is for concurrent setups,in which the air and sea modules run in *** focus is the temporal representation of air-sea *** methods we study conserve moments of the fluxes,with an arbitrary order of accuracy possible in *** step sizes are allowed for the two fluid *** a posteriori stability indicator is defined,which can be computed efficiently on-the-fly over each coupling *** a model of two coupled fluids with natural heat convection,using finite elements in space,we prove the sufficiency of our stability *** certain conditions,we also prove that stability can be enforced by iteration when the coupling interval is small *** particular,for solutions in a certain class,we show that the step size scaling is no worse than O(h)in three dimensions of space,where Oh is a mesh *** is a sharper result than what has been shown previously for related algorithms with finite element *** examples illustrate the behavior of the algorithms under a wide variety of configurations.

关键词： Air-sea atmosphere-ocean fluid-fluid partitioned time stepping conservative coupling