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Direct3D游戏编程入门教程第2版第二版

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Operando electrochemical SERS monitors nanoparticle reactions by capping agent fingerprints

丛书名：第九艺术学院游戏开发系列

2005年

作者：（德）Wolfgang f.engel 周惟迪徐翎张璐意译

本书是学习DirectX3D图形编程的入门教程。它从基础知识开始逐步介绍各项技术，详细介绍了Direct3D的背景、基本知识以及3D程序设计的相关概念与技术。

ISBN: (纸本)7115129630

本书是学习DirectX3D图形编程的入门教程。它从基础知识开始逐步介绍各项技术，详细介绍了Direct3D的背景、基本知识以及3D程序设计的相关概念与技术。

关键词：游戏软件设计

来源：畅想之星图书光盘版（南... 畅想之星图书光盘版（南... 评论

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Nano Research 2022年第5期15卷 4517-4524页

作者： Kevin Wonner Steffen murke Serena RAlfarano Pouya Hosseini Martina Havenith Kristina Tschulik Chair of Analytical Chemistry Ⅱ Faculty of Chemistry and BiochemistryRuhr University BochumBochum 44801Germany Chair of Physical Chemistry Ⅱ Faculty of Chemistry and BiochemistryRuhr University BochumBochum 44801Germany

Nanomaterials are frequently employed in daily life goods,including health,textile,and food industry.A comprehensive picture is lacking on the role of the capping agents,added ligand molecules,in case of nanoparticle reactions and degradation in aqueous solutions,like surface waters or ***,we aim to elucidate the capping agent influence on nanoparticle reactivity probing two commonly employed capping agents citrate and polyvinylpyrrolidone(PVP).Their influence on silver nanoparticle(AgNP)transformation is studied,which is particularly important due to its application as an antimicrobial *** induce oxidation and reduction processes of AgNPs in halide solutions and we monitor the associated transformations of particles and capping agents by spectro-electrochemical surface-enhanced Raman spectroscopy(SERS).Raman bands of the capping agents are used here to track chemical changes of the nanoparticles under operando *** sparingly soluble and non-plasmon active silver salts(AgBr and AgCl)are formed under potential *** addition,we spectroscopically observe plasmon-mediated structural changes of citrate to cis-or trans-aconitate,while PVP is *** different behavior of the capping agents implies a change in the physical properties on the surface of AgNPs,in particular with respect to the surface ***,we showcase that reactions of the capping agents induced by different external stimuli,such as applied bias or laser irradiation,can be *** results demonstrate how SERS of capping agents can be exploited to operando track nanoparticle conversions in liquid *** approach is envisaged to provide a more comprehensive understanding of nanoparticle fates in complex liquid environments and varied redox conditions.

关键词： capping agent electrochemical surface-enhanced Raman spectroscopy silver nanoparticle nanoparticle reaction

Merging bound states in the continuum in an open acoustic resonator

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 124-131页

作者： Lujun Huang Bin Jia Artem S.Pilipchuk Sibo Huang Chen Shen Almas f.Sadreev Yong Li Andrey E.Miroshnichenko School of Physics and Electronic Sciences East China Normal University Institute of Acoustics Tongji University L.V.Kirensky Institute of Physics Department of Mechanical Engineering Rowan University School of Engineering and Technology University of New South Wales at Canberra

Bound states in the continuum （BICs） are perfectly localized resonances despite embedding in the continuum ***,an isolated BIC is very sensitive to the structure ***,we report merging acoustic BICs in a single open resonator,robust against the structure *** find that both symmetry-protected BIC and friedrich-Wintgen BIC are sustained in a single coupled waveguide-resonator *** varying the height and length of the resonator,these two BICs move toward each other and merge into a single one at a critical *** to an individual BIC,the merged BIC is robust against fabrication error because its Q-factor is proportional to ΔL-4,whereΔL embodies the structure *** essence of this extraordinary phenomenon is perfectly explained by the two-and three-level approximations of the effective nonHermitian ***,we present direct experimental demonstrations of the moving and merging of BICs in a coupled 3D waveguide-resonator,which are evidenced by the vanishing of the linewidth of fano resonance in the transmission *** results may find exciting applications in designing high-quality acoustic sources,sensors and filters.

关键词： acoustic resonances bound state in the continuum high-Q resonances

Test Elements, Generic Elements and Almost Primitivity in free Products

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Algebra Colloquium 2016年第2期23卷 263-280页

作者： Ann-Kristin engel Benjamin fine Gerhard Rosenberger faculty of Mathematics TU-Braunschweig 38106 Braunschweig Germany Department of Mathematics Fairfield University Fairfield Connecticut 06430 USA fachbereich Mathematik University of Hamburg Bundesstrasse 55 20146 Hamburg Germany fIM University of Passau Innstrasse 33 94032 Passau Germany

In [5, 6] the relationships between test words, generic elements, almost primitivity and tame almost primitivity were examined in free groups. In this paper we extend the concepts and connections to general free produ... 详细信息

关键词： test elements generic elements almost primitive elements free products

Pre-emergence herbicides affect seedling emergence of tropical forest tree species

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Journal of forestry Research 2017年第4期28卷 733-739页

作者： Diego Cerveira de Souza Vera Lex engel forest Science Department Agronomic Sciences College-FCASao Paulo State University – UNESPP.O. Box 237BotucatuSP 18603-970Brazil

Testing techniques to reduce weed infestation is a crucial step in developing direct tree seeding systems. The use of pre-emergence herbicides may be an alternative to manual weeding techniques, but so far, information on how they affect the seeds of native tree species is scarce. We established a greenhouse experiment to evaluate the effects of four pre-emergence herbicides (atrazine, diuron, isoxaflutole and oxyfluorfen) on weed suppression and seedling emergence and early growth of seven tropical forest tree species (Annona coriacea Mart., Citharexylum myrianthum Cham., Cordia ecalyculata Vell., Peltophorum dubium (Spreng.) Taub., Psidium guajava L., Pterogyne nitens Tul. and Schinus terebinthifolia Raddi). The experimental design was a randomized complete block design with five treatments and five replicates. The treatments consisted of a single dose of each pre-emergence herbicide and a control. Throughout the 60 days after sowing we evaluated weed cover and seedling emergence and early growth of tree species. Overall, our results suggest that all tested herbicides reduced weed cover; however, they also negatively affected tree species seedling emergence. Of the four herbicides tested, atrazine and diuron showed the greatest effects on tree seedling emergence, oxyfluorfen was least aggressive towards native species and isoxaflutole was most effective in weed control. Native tree species varied in their responses to herbicides, indicating that future experiments should increase the number of species tested as well as investigate how seed traits can affect the species responses to different herbicides.

关键词： Pre-emergence herbicides Weed control Direct seeding Seedling emergence Tropical seasonal forests

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Responses of an old-field plant community to interacting factors of elevated[CO_(2)],warming,and soil moisture

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Journal of Plant Ecology 2009年第1期2卷 1-11页

作者： E.Cayenne engel Jake f.Weltzin Richard J.Norby Aimee T.Classen Department of Ecology and Evolutionary Biology University of Tennessee569 Dabney HallKnoxvilleTN 37996-1610USA Environmental Sciences Division Oak Ridge National LaboratoryOne Bethel Valley RoadBuilding 1062Oak RidgeTN 37831-6422USA Present address:USA National Phenology Network National Coordinating Office1955 East 6th StreetTucsonAZ 85721USA

Aims The direct effects of atmospheric and climatic change factors—atmospheric[CO_(2)],air temperature and changes in precipitation—can shape plant community composition and alter ecosystem *** is essential to understand how these factors interact to make better predictions about how ecosystems may respond to *** investigated the direct and interactive effects of[CO_(2)],warming and altered soil moisture in open-top chambers(OTCs)enclosing a constructed old-field community to test how these factors shape plant *** and methods The experimental facility in Oak Ridge,TN,USA,made use of 4-m diameter OTCs and rain shelters to manipulate[CO_(2)](ambient,ambient+300 ppm),air temperature(ambient,ambient+3.5C)and soil moisture(wet,dry).The plant communities within the chambers comprised seven common old-field species,including grasses,forbs and *** tracked foliar cover for each species and calculated community richness,evenness and diversity from 2003 to *** findings This work resulted in three main findings:(1)warming had speciesspecific effects on foliar cover that varied through time and were altered by soil moisture treatments;(2)[CO_(2)]had little effect on individual species or the community;(3)diversity,evenness and richness were influenced most by soil moisture,primarily reflecting the response of one dominant *** conclude that individualistic species responses to atmospheric and climatic change can alter community composition and that plant populations and communities should be considered as part of analyses of terrestrial ecosystem response to climate ***,prediction of plant community responses may be difficult given interactions between factors and changes in response through time.

关键词： climate change foliar cover multi-factor interactions diversity richness

Ensemble-based uncertainty quantification for coordination and control of thermostatically controlled loads

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Journal of Control and Decision 2018年第2期5卷 148-168页

作者： Weixuan Li Jianming Lian Dave engel Hong Wang Pacific Northwest National Laboratory RichlandWAUSA

This work investigates an uncertainty quantification(UQ)framework that analyses the uncertainty involved in modelling control systems to improve control strategy *** framework involves solving four problems:identifying uncertain parameters,propagating uncertainty to the quantity of interest,data assimilation and making decisions under quantified uncertainties.A specific group of UQ approaches,known as the ensemble-based methods,are adopted to solve these *** UQ framework is applied to coordinating a group of thermostatically controlled loads,which relies on simulating a second-order equivalent thermal parameter model with some uncertain *** this uncertainty affects the prediction and the control of total power is *** study shows that uncertainty can be effectively reduced using the measurement of air ***,the control objective is achieved fairly accurately with a quantification of the uncertainty.

关键词： Uncertainty quantification ensemble-based method thermostatically controlled loads transactive control smart grid

Mesozoic giant fleas from northeastern China (Siphonaptera):Taxonomy and implications for palaeodiversity

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Chinese Science Bulletin 2013年第14期58卷 1682-1690页

作者： HUANG DiYing engel Michael S CAI ChenYang NEL André State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Division of Entomology Natural History Museum and Department of Ecology & Evolutionary Biology University of Kansas CNRS UMR 7205 CP 50 Entomologie Muséum National d'Histoire Naturelle

The recently discovered definite giant fleas from the Middle Jurassic Daohugou fauna and the Early Cretaceous Jehol fauna of northeastern China represent significant evidence for understanding ectoparasitism in the Mesozoic as well as the evolution of these giant blood feeders with their putative hosts (i.e. hairy or feathered vertebrates). On the basis of seven well-preserved specimens from Daohugou and Huangbanjigou we analyse the systematic classification of these primitive fleas, establishing two new genera and three new species as Pseudopulex wangi sp. nov., Hadropsylla sinica gen. et sp. nov., and Tyrannopsylla beipiaoensis gen. et sp. nov. All of them are assigned to the extinct siphonapteran family Pseudopulicidae, while the Early Cretaceous genus Tarwinia is transferred to Tarwiniidae fam. nov. The basal morphological disparities of Siphonaptera in the Mesozoic are evidenced by the occurrence of at least three distinct groups (pseudopulicids, tarwiniids, and saurophthirids). These disparate morphologies likely indicate adaptations to different hosts.

关键词：中国东北地区中生代跳蚤巨型分类东北部早白垩世形态差异

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Swarming caddisflies in the mid-Cretaceous

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National Science Review 2024年第8期11卷 125-135页

作者： Jiajia Wang Michael S.engel Weiting Zhang Chungkun Shih Rui Qiu Dong Ren College of Life Sciences Capital Normal University Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences Division of Invertebrate Zoology American Museum of Natural History facultad de Ciencias Biológicas Universidad Nacional Mayor de San Marcos Departamento de Entomología Museo de Historia NaturalUniversidad Nacional Mayor de San Marcos Hebei International Joint Research Center for Paleoanthropology Hebei GEO University Department of Paleobiology National Museum of Natural History Smithsonian Institution National Natural History Museum of China

Swarming,as a special form of mating aggregation,is most noteworthy in insects of the orders Ephemeroptera,Diptera,and *** in extant trichopterans is well understood in terms of sex composition,specific mating behaviors,and functional morphological specializations of adults,but an exploration of the evolution of such aggregative behaviors is hampered by the dearth of available examples from the fossil record as well as the ability to reliably distinguish the few gatherings as the result of swarming relative to other taphonomic or behavioral *** we describe five new fossil species of caddisflies preserved in mid-Cretaceous amber from Myanmar,all preserved as large *** aggregations of these five new species can be positively identified as swarms based on morphological traits of wing shape,as well as the presence of particular forms of sexual *** of a phylogenetic reconstruction of both molecular and morphological data as well as ancestral-trait reconstructions and tip-dating analyses indicate that swarming was likely present in the Triassic as a feature of the trichopteran *** most Mesozoic insectivorous predators were diurnal based on morphological evidence,largely nocturnal caddisflies would have been freed from such *** phylogeny also shows a correlation between the rise of nocturnal bat predators from the Paleocene or early Eocene and the repeated loss of swarming from various clades of caddisflies,revealing the potential impact of bat predation on reshaping the behavioral landscape of Trichoptera during the Cenozoic.

关键词： swarming caddisflies Cretaceous ancestral-trait reconstructions