简介：XinhuareportedonDecember6thatChinawouldsetupayear-on-yeargrowinginvestmentsystemtofacilitatethedevelopmentofscienceandtechnologyonagriculture.ThedevelopmentofscienceandtechnologyiskeytoeasethepressureonChina'sagriculture,especiallyongrain

简介：自从Holocene，在Xiliao河山谷的农业开垦从草地导致了一个巨大的风景变化到农田。在这份报纸，我们由自从Qing王朝，在史前，Liao-Jin王朝和时期分析三主要农业开垦在Xiliao河山谷重新考虑人陆地关系。我们主张当人口统计的压力出现在这个区域时，特别在最后开垦期间，intraregional迁居(第二迁居)是主要反应减轻如此的压力，它也区分二个不同解决地点：起始的区域和第二等的区域。由于这二个区域之间的环境差别，一个人引起了更多的严肃的骚乱到本地环境的后者上的耕作。因此，第二等的区域成为了严重需要环境管理的关键区域。

简介：为地k和二有限的组G和X，当G由组自守从权利对X起作用时，k空间(kXop)上有Hopf代数学结构*kG(看见定理2.1)，把由DX双、表示的非平衡的量称为(G)。在这份报纸，DX(G)的一些Hopf代数学性质被给，在DX(G)上的当k代数学被讨论，看的DX(G)的表示类型，代数学结构和模块范畴被学习。自从非平衡的量的Hopf代数学结构，两倍DX(G)概括平常的量为有限的组G的两倍D(G)，当一种特殊情况和DX(G)的通用R矩阵提供Yang-Baxter方程的更多的答案，关于在这份报纸的DX(G)的所有结果能也被用来描述D(G)。

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简介：Onthebasisofasimplemodelidentifyingtherelationshipbetweentheagriculturallaborshareintotallaborforceandthedeterminingfactors,suchasnumberofnewparticipatorsto,andthoseleavingfromagricultureandtransferringtonon-farming,thispaperestimatesthecontributionofthedeterminingfactorsforthechangesofagriculturallaborshareduringtheperiod1990～2030.Giventheassumptionabouttheaverageannualdeclineoftheagriculturallaborshareinfuture,thenumberofnewparticipatestoagriculturallaborisestimatedtodeclinefrom20.23millionduring2005～2010to11.42millionduring2010-2030,andthenumbersofleavingandtranferringareestimatedtochangefrom42.20millionand38.43millionto27.04millionand29.49millionrespectivelyduringthesameperiod.Thefactorsofentrance,exitandtransfer,whichcontributetothedeclineoftheagriculturallaborshare,aredescribedtochangefrom-15.1%,34.7%and38.1%respectivelyin2005～2010to-22.6%,54.3%and49.8%in2025～2030.Thenonfarmingjobcreationmaydeclinefrom69.69millionin2005～2010to35.08millionin2025～2030.Thepolicyimplicationsofthefindingarealsodiscussed.

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简介：这个工作学习在横梁的免费结束由非一致地分布式的连续负担和集中的负担组成的受到联合装载的苗条、非棱柱的伸臂横梁的大偏转。伸臂的材料被假定非线性地有弹性。在在张力、压缩的领域的应力和紧张之间的不同非线性的关系被考虑。数字答案的精确性被从以前的研究并且与一个实验室实验把他们与结果作比较评估。

简介：Recentinterestinmobile-basedhealthcarehasdrivensignificantdemandsonresearchingnon-contactelectrodesforelectrocardiogram(ECG)measurement.Whiletheconductivegelachievestherequirementinmakingagoodcontactbetweentheelectrodesandskin,severalproblemsappear.Agel-free,non-contactelectrodebasedoncapacitivecouplingtheorywasprovidedinthispaper,whichwasintegratedontheprintcircuitboard(PCB).TheexperimentalresultsshowedthatclearECGsignalscouldbeacquiredinthelaboratoryconditionsbycouplingtheelectrodestothechestofpatientsthroughcottonbelts.

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简介：Magnetohydrodynamic(MHD)acceleratorisproposedasanextgenerationpropulsionsystem.Itcanbeusedtoincreasetheperformanceofapropulsionsystem.TheobjectiveofthisstudyistoinvestigatetheperformanceofMHDacceleratorusingnon-equilibriumairplasmaasworkinggas.Inthisstudy,thefundamentalperformanceofMHDacceleratorsuchasflowperformanceandelectricalperformanceisevaluatedatdifferentlevelsofappliedmagneticfieldusing1-Dnumericalsimulation.ThenumericalsimulationisdevelopedbasedonasetofdifferentialequationswithMHDapproximation.TosolvethissetofdifferentialequationstheMacCormackschemeisused.AspecifiedchanneldesignedanddevelopedatNASAMarshallSpaceFlightCentreisusedinthenumericalsimulation.Thecompositionofthesimulatedairplasmaconsistsofsevenspecies,namely,N2,N,O2,O,NO,NO+,ande-.Theperformanceofthenon-equilibriumMHDacceleratorisalsocomparedwiththeequilibriumMHDaccelerator.

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简介：Inthispaperathreedegreesoffreedomautoparametricsystemwithlimitedpowersupplyisinvestigatednumerically.Thesystemconsistsofthebody,whichishungonaspringandadamper,andtwopendulumsconnectedbyshapememoryalloy(SMA)spring.Shapememoryalloyshaveabilitytochangetheirmaterialpropertieswithtemperature.ApolynomialconstitutivemodelisassumedtodescribethebehavioroftheSMAspring.Thenon-idealsourceofpoweraddsonedegreeoffreedom,sothesystemhasfourdegreesoffreedom.Theequationsofmotionhavebeensolvednumericallyandpseudoelasticeffectsassociatedwiththemartensiticphasetransformationarestudied.Itisshownthatinthistypesystemonemodeofvibrationsmightexciteordampanothermode,andthatexceptdifferentkindsofperiodicvibrationstheremayalsoappearchaoticvibrations.Fortheidentificationoftheresponsesofthesystem’svarioustechniques,includingchaostechniquessuchasbifurcationdiagramsandtimehistories,powerspectraldensities,Poincar`emapsandexponentsofLyapunovmaybeused.

简介：Inthispaper,thenotionofp-waveletpacketsonthepositivehalf-lineR+isintroduced.Anewmethodforconstructingnon-orthogonalwaveletpacketsrelatedtoWalshfunctionsisdevelopedbysplittingthewaveletsubspacesdirectlyinsteadofusingthelowpassandhigh-passfiltersassociatedwiththemultiresolutionanalysisasusedintheclassicaltheoryofwaveletpackets.Further,themethodovercomesthedifficultyofconstructingnon-orthogonalwaveletpacketsofthedilationfactorp>2.

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简介：Thisstudywasonsuperiorityofthenon-negativematrixfactorization（NMF）algorithmforapplicationofinformationextractedwithaerialimages.First,NMFwasusedforaerialimageinformationextraction,andthenthisdatawascomparedwithaprincipalcomponentanalysis（PCA）inwhichr（thenumberofrowsorcolumnsofbasicmatrix）andEignum（thenumberofeigenvalues）weregivendifferentvalues.ExperimentalresultsshowedthattheruntimeofNMFwithr=20or50waslessthanthatofPCAwithanEignum=20or50.Also,therecognitionrateofNMFwithr=50washigherthanthatofanEignum=50.Theexperimentshowedthatnonnegativematrixfactorizationhadadvantagesofashorttimeperiodwithahighrecognitionrate.

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简介：在这研究，在比率AR是其方面的攻击=00的角度的接近音速的流动过去NACA0012侧面1.0被数字分析用一个TVD计划与非平衡冷凝作用分析并且用一种断断续续的吸入类型被调查超声的风隧道。在有停滞亲戚湿度(0)的变化的免费溪流马赫数字的0.780.90的接近音速的流动被测试。为一样的免费溪流马赫数字，在是的侧面的drag系数的0原因减少的增加形式的drag部件创作了，粘滞并且波浪。在一样的M和T0的情况中，为超过0=30%，尽管有在非平衡冷凝作用的过程的不能反逆的性能，由冲击波的drag随0的增加更加减少。在另一方面，它证明形式的drag系数上的冷凝作用的效果并且粘滞是可以忽略的。作为一个例子，在侧面的drag系数的减少的率为M=0.9和0=50%数量的案例由非平衡冷凝作用的影响引起了到34%。另外，这被生产超声的水泡的尺寸(也就是说超声的地区的最大的高度)并且从为有为一样的M的0的增加的M=1减少的价值的压力系数的偏差。

简介：尽管非小的细胞肺癌症(NSCLC)能转移到几乎任何东西器官，到有重要临床的表明的胆囊的转移是相对稀罕的。这里，我们报导作为尖锐胆汁介绍的NSCLC的胆囊转移的一个案例。在恰好上面的象限和发烧疼痛地介绍的一个79岁的人。胸和腹部的计算断层摄影术(CT)扫描在胆囊变厚的肺和不规则的墙的恰好更低的脑叶显示出一个cavitary团。肺团的开的胆囊炎和针活体检视被执行。胆囊的组织学的检查揭示了显示象针活体检视估计的肺团的一样的形态学的中等区分的有鳞的房间癌。胆囊和肺织物的随后的immunohistochemical检查证明肿瘤房间为P63是积极的但是为cytokeratin否定7，cytokeratin20并且甲状腺抄写factor-1。胆囊的第二个主要肿瘤被immunohistochemical方法排除，并且最后的病理学的诊断是NSCLC的胆囊转移。尽管发生是极其稀罕的，尖锐胆汁能与肺癌症转移联合发生到胆囊。

简介：Inthispaper,weintroducethecombiningstatedpreferenceandrevealedpreferencemethodswhichisthestate-ofthe-artmethodforthevaluationofnon-marketgoods.Revealedpreferencemethodsandstatedpreference(SP)methodshavebothbeenappliedbyeconomistsinvaluingnon-marketgoods;howeverbothmethodshaveinherentweaknesses.Inordertoexploitthestrengthsofthevariousapproacheswhileminimizingtheirweaknesses,combiningthetwomethodshasbecomeanimportantmethodologicaloption.Uptonow,agrowingnumberofliteraturesofstudyingcombingthetwotypesofdatahaveevolved,andresearchersdevelopedthreetypesofmodelstoestimatecombiningrevealedpreferenceandstatedpreferencedatainacademicfields:discretechoicemodel,continuouschoicemodelandmixedchoicemodel.Combiningstatedandrevealedpreferencemethodshavebeendevelopedfastespeciallyinthetransportstudyfieldinwhichideascouldalsobeleantforenvironmentaleconomicstudies.