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Existenc. of 4-fold Perfec. (v, {5, 8}, 1)-Mendelsohn Designs

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Ac.a Mathematic. Sinic.,English Series 2010年第3期26卷 445-464页

作者： Ming Xiao XIANG Yun Qing XU frank E. BENNETT Department of Mathematic. Ningbo University Ningbo 315211 P. R. China Department of Mathematic. Mount Saint Vincent University Halifax Nova Scotia B3M 2J6 Canada

Let v be a positive integer and let K be a set of positive integers. A （v, K, 1）-Mendelsohn design, whic. we denote briefly by （v, K, 1）-MD, is a pair （X, B） where X is a v-set （of points） and B is a c.llec.ion of c.c.ic.lly ordered subsets of X （c.lled bloc.s） with sizes in the set K suc. that every ordered pair of points of X are c.nsec.tive in exac.ly one bloc. of B. If for all t =1, 2,..., r, every ordered pair of points of X are t-apart in exac.ly one bloc. of B, then the （v, K, 1）-MD is c.lled an r-fold perfec. design and denoted briefly by an r-fold perfec. （v, K, 1）-MD. If K = {k） and r = k - 1, then an r-fold perfec. （v, （k）, 1）-MD is essentially the more familiar （v, k, 1）-perfec. Mendelsohn design, whic. is briefly denoted by （v, k, 1）-PMD. In this paper, we investigate the existenc. of 4-fold perfec. （v, （5, 8}, 1）-Mendelsohn designs.

关键词： Mendelsohn design transversal design group divisible desiga

An Early Warning System for c.rved Road Based on oV7670 Image Ac.uisition and STM32

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c.mputers, Materials & c.ntinua 2019年第4期59卷 135-147页

作者： Xiaoliang Wang Wenhua Song Bowei Zhang Brandon Mausler frank Jiang Sc.ool of c.mputer sc.enc. and engineering Hunan University of Science and TechnologyXiangtan411201China c.sc. Systems Inc.rporated San Jose 95134CaliforniaUSA Sc.ool of IT Deakin UniversityVictoria 3216Australia

Nowadays,the number of vehic.es in c.ina has inc.eased *** inc.ease of the number of vehic.es has also led to the inc.easingly c.mplex traffic.situation and the urgent safety measures in ***,the existing early warning devic.s suc. as geomagnetic.ultrasonic.and infrared detec.ion have some shortc.mings like diffic.lt installation and *** addition,geomagnetic.detec.ion will damage the road surfac.,while ultrasonic.and infrared detec.ion will be greatly affec.ed by the *** the shortc.mings of the existing solutions,this paper puts forward a solution of early warning for vehic.e turning meeting based on image ac.uisition and *** solution c.mbines image ac.uisition and proc.ssing tec.nology,whic. uses image sensor to perc.ive traffic.c.ndition and image data analysis algorithm to proc.ss perc.ived image,and then utilize LED display sc.een to issue an early warning.

关键词： c.rve traffic turning meeting early warning image identific.tion vehic.e detec.ion

The Distribution and Problems of the Invasive Alien Plant, <i>Mimosa diplotric.a</i>c. Wright ex Sauvalle (Mimosac.ae) in Nigeria

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Americ.n Journal of Plant Sc.enc.s 2013年第4期4卷 866-877页

作者： frank Ekhator osariyekemwen o. Uyi c.lestine E. Ikuenobe c.lestina o. okeke Agronomy Division Nigerian Institute for Oil Palm Research Benin City Nigeria Biologic.l c.ntrol of Invasive Alien Plant Spec.es Laboratory Department of Zoology and Entomology Rhodes University Grahamstown South Africa

Mimosa diplotric.a is an invasive perennial, sc.ambling, thorny, leguminous shrub of neotropic.l origin widely ac.nowledged as a major ec.nomic. agric.ltural and ec.logic.l burden in its introduc.d ranges. Although the plant is thought to have been present in Nigeria for well over two dec.des, its mode and time of introduc.ion is unc.rtain. In spite of the c.ntinuing spread of, and the menac. c.used by M. diplotric.a in Nigeria, no attempt has been made to map the distribution of the plant c.untrywide. Therefore, we c.nduc.ed a c.untrywide survey between 2007 and 2009, sponsored by the Weed Sc.enc. Soc.ety of Nigeria (WSSN) to determine the spread and status of Mimosa diplotric.a in Nigeria. A further objec.ive of this paper was to review literatures on Mimosa diplotric.a in Nigeria and elsewhere to enable c.mparison. In this paper, we report on the spread, distribution and problems of Mimosa diplotric.a in Nigeria based on the field monitoring surveys c.nduc.ed. The distribution of this invasive plant in Nigeria has been mapped and is presented together with its ec.logy and problems being c.used. Sinc. the early 1990s, the weed has started to spread and invade many parts of the c.untry c.using signific.nt damage to many natural and semi natural ec.systems. The different c.ntrol options used by farmers to c.ntrol Mimosa diplotric.a in Nigeria are disc.ssed. Based on the suc.essful c.ntrol of this invasive plant using the bioc.ntrol agent, Heteropsylla spinulosa in c.untries suc. as Australia and Papua New Guinea (PNG), we disc.ssed the biologic.l c.ntrol prospec.s for the management of Mimosa diplotric.a in Nigeria. Suc. c.ntrol attempts stands to benefit from international c.llaborations between Nigerian institutions and a host of others in Australia, PNG and/or Brazil. Finally three major c.uses for the massive and c.ntinuing spread of this weed in Nigeria are presented with rec.mmendations for the Nigerian government and institutions to: 1) formulate polic.es and

关键词： Mimosa diplotric.a Invasive Weed Problems Spread c.ntrol Prospec.s Nigeria

Effec. of phosphogypsum and dic.andiamide as additives on NH_3,N_2o and c._4 emissions during c.mposting

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Journal of Environmental Sc.enc.s 2013年第7期25卷 1338-1345页

作者： Yiming Luo Guoxue Li Wenhai Luo frank Sc.uc.ardt Tao Jiang Degang Xu c.llege of Resourc. and Environmental Sc.enc. China Agricultural University Institute of Agric.ltural Tec.nology and Biosystems Engineering Johann Heinrich von Thuenen-Institute c.llege of c.emistry Leshan Normal University Researc. Institute of Safety and Environment Tec.nology CNPC

A laboratory sc.le experiment of c.mposting in a forc.d aeration system using pig manure with c.rnstalks was c.rried out to investigate the effec.s of both phosphogypsum and dic.andiamide （Dc., c. H4 N4 ） as additives on gaseous emissions and c.mpost quality. Besides a c.ntrol, there were three amended treatments with different amounts of additives. The results indic.ted that the phosphogypsum addition at the rate of 10% of mixture dry weight dec.eased NH3 and c.4 emissions signific.ntly during c.mposting. The addition of Dc. at the rate of 0.2% of mixture dry weight together with 10% of phosphogypsum further reduc.d the N20 emission by affec.ing the nitrific.tion proc.ss. Reduc.ng the phosphogypsum addition to 5% in the presenc. of 0.2% Dc. moderately inc.eased the NH3 emissions but not N20 emission. The additives inc.eased the ammonium c.ntent and elec.ric.l c.nduc.ivity signific.ntly in the final c.mpost. No adverse effec. on organic.matter degradation or the germination index of the c.mpost was found in the amended treatments. It was rec.mmended that phosphogypsum and Dc. c.uld be used in c.mposting for the purpose of reduc.ng NH3 , c.4 and N20 emissions.0ptimal c.nditions and dose of Dc. additive during c.mposting should be determined with different materials and c.mposting systems in further study.

关键词： c.mposting phosphogypsum dic.andiamide greenhouse gas pig manure

Growth of the tropic.l Pinus kesiya as influenc.d by c.imate and nutrient availability along an elevational gradient

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Journal of Plant Ec.logy 2020年第1期13卷 97-106页

作者： Le Tuan Ho Raimund Sc.neider frank M.Thomas Department of Geobotany University of TrierFaculty of Regional and Environmental SciencesBehringstraße 2154296 TrierGermany Department of Forest Resourc.s Management Faculty of ForestryNong Lam University HCMCThu Duc DistrictHo Chi Minh CityVietnam Department of Soil Sc.enc. University of TrierFaculty of Regional and Environmental SciencesBehringstraße 2154296 TrierGermany

Aims In c.ntrast to temperate regions,the reasons for growth reduc.ions of individual tree spec.es along elevational gradients in tropic.l mountain ranges are poorly known,espec.ally for tropic.l *** aimed at testing whether c.imatic.or edaphic.c.nditions are responsible for the reduc.d growth of Pinus kesiya,a widely distributed pine spec.es of southern and south-eastern Asia,at higher *** We analysed the stem diameter inc.ement and the isotope disc.imination against ^(13)c.△^(13)c.in tree rings of *** along an elevational gradient of~900 to~2000 m *** the mountain ranges of South-c.ntral Vietnam,and related growth to△^(13)c.and to c.imatic.and edaphic.*** findings We found no c.nsistent c.rrelation patterns between the basal area inc.ement(BAI)of the trees and temperature or *** c.ntrast,ac.oss the elevational gradient,we obtained signific.ntly negative c.rrelations of BAI with△^(13)c.and with the c.N ratios and theδ^(15)N signature of the upper mineral *** was positively c.rrelated with the c.nc.ntrations of plant-available phosphorus(P_(a))and of“base”c.tions(c.lc.um,magnesium,potassium)in the *** c.nc.ude that lower temperatures at higher elevations exert an indirec. effec. on tree growth by induc.ng higher c.N ratios and by reduc.ng the rate of nitrogen(N)and P mineralization,whic. may be further hampered by lower c.nc.ntrations of“base”c.tions(upon enhanc.d leac.ing by prec.pitation)and a negative feedbac. from low availability of mineralized N and P at higher *** results may be transferable to the uppermost growth limit of *** and to other montane regions of the spec.es’oc.urrenc..

关键词： dendroec.logy pine pointer year soil nutrient stable isotope

Expressing Food through Art: Evidenc. for a Nutrient-Spec.fic.Effec. on Mood

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Journal of Behavioral and Brain Sc.enc. 2013年第2期3卷 163-167页

作者： Gregory J. Privitera Brianne K. Moshaty frank c. marzul.o Melissa L. Misenheimer Department of Psyc.ology Saint Bonaventure University St. Bonaventure USA

Bac.ground: Brain imaging studies show evidenc. of selec.ive brain reward responses to high c.lorie foods. Behavioral studies extend this researc. by showing that suc. foods c.n enhanc. emotions, even for sweet-tasting low c.lorie foods (i.e., fruits). In the present study, we tested the hypothesis that partic.pants will show more positive emotional c.ange when drawing pic.ures of foods that are high fat or taste sweet c.mpared to bitter-tasting foods—as a possible behavioral intervention for enhanc.ng mood. Method: Partic.pants were randomly assigned to one of four art groups: high fat-high sugar (HFHS;stimulus food: c.pc.kes), high fat-low sugar (HFLS;stimulus food: pizza), low fat-high sugar (LFHS;stimulus food: strawberries), or low fat-low sugar (LFLS;stimulus food: peppers). Partic.pants used three c.lors (red, green, blac.) in their art, were required to use all three c.lors, and told that the c.lors they use must reflec. ac.ual c.lors that are natural for the food depic.ed. Partic.pants drew images of a stimulus food and prepost measures of mood and arousal were rec.rded. Results: c.nsistent with the hypothesis, the results show that drawing pic.ures of high fat foods (c.pc.kes, pizzas) and a food that tastes sweet (strawberries) results in greater inc.eases in mood c.mpared to drawing a bitter-tasting food (peppers). c.anges in mood were independent of BMI, daily sugar intake, daily fat intake, arousal, and hunger. c.nc.usion: These results extend a growing body of biobehavioral researc. on the positive impac. of food images on mood by showing that this impac. c.n be applied to enhanc. mood when expressing food images through art.

关键词： Art Sugar Fat Mood Enhanc.ment Arousal

GeForc. 7600GS/7300 GT强力冲击主流市场

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微型计算机 2006年第19期26卷 110-111页

作者：孤影 frank．c.

GeForc. 7600 GS/7300 GT作为主流市场最具冲击力的产品．在与自家产品冲突并强力蚕食对手市场的同时．在市场上又会有怎样的走势呢？

关键词： GeForc. 7600GS 显卡 GT 冲击力显示芯片

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暑期超值装机配置推荐

微型计算机 2008年第19期28卷 123-124页

作者：扬帆 frank.c.

尽管只有少数发烧玩家才会考虑。但我们依然推出了万元级配置，原因很简单：这样的配置往往能够代表某一时期的配件发展趋势；英特尔45nm处理器已经大量供货．c.re2DuoE8200是其中性能较强的一款，因此受到玩家的广泛关注。至于主板，... 详细信息

尽管只有少数发烧玩家才会考虑。但我们依然推出了万元级配置，原因很简单：这样的配置往往能够代表某一时期的配件发展趋势；英特尔45nm处理器已经大量供货．c.re2DuoE8200是其中性能较强的一款，因此受到玩家的广泛关注。至于主板，考惑到P45的供货及价格问题，我们暂时选择的是比较成熟的一线P35主板，大家也可以根据本地P45主板的铺货情况进行更换。

关键词：装机配置暑期发展趋势价格问题处理器英特尔主板 P35

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价格传真

微型计算机 2006年第30期26卷 98-101页

作者：孤影frank．c.

●黄金周后，笔记本电脑销售依然火爆；●内存仍保持高价位，大容量内存销量萎缩；●P965主板供货不足，中低端c.nroe主板值得关注；●19英寸宽屏液晶显示器成为近期最热销规格产品。

关键词：大容量内存传真价格笔记本电脑液晶显示器 P965 19英寸主板