简介：InthispaperweextendEnestrom-Kakeyatheoremtoalargeclassofpolynomialswithcomplexcoefficientsbyputtinglessrestrictionsonthecoefficients.Ourresultsgeneraliseandextendmanyknownresultsinthisdirection.

简介：Thispaperthoroughlyinvestigatestheproblemofrobotself-locationbylinecorrespondences.Theoriginalcontributionsarethree-fold:(1)Obtainthenecessaryandsufficientconditiontodeterminelinearlytherobot'sposebytwolinecorrespondences.(2)Showthatifthespacelinesareverticalones,itisimpossibletodeterminelinearlytherobot'sposenomatterhowmanylinecorrespondenceswehave,andtheminimumnumberoflinecorrespondencesis3todetermineuniquely(butnon-linearly)therobot'spose.(3)Showthatifthespacelinesarehorizontalones,theminimumnumberoflinecorrespondencesis3forlineardeterminationand2fornon-lineardeterminationoftherobot'spose.

简介：你的方位感是否很强？当你寻找一个地方却找不到时，是询问当地人，警察还是借助于地图呢？看来，在平时学习一些必要的表示方位或方向的日常用语是非常必要的。

简介：这篇论文讨论与不同费用和界限限制在一棵树上限制的反的中心地点问题。作者首先证明这个问题能作为一系列组合线性节目被提出，然后O(∣V∣2木头∣V∣)解决这个问题的时间算法被介绍。为相等的费用盒子，作者进一步给O(∣V∣)时间算法。

简介：AnovelalgorithmcalledColonyLocationAlgorithm(CLA)isproposed.Itmimicsthephenomenainbioticconmunitythatcoloniesofspeciescouldbelocatedintheplacesmostsuitabletotheirgrowth.Thefactorsworkingonthespecieslocationsuchasthenutrientofsoil,resourcecompetitionbetweenspecies,growthanddeclineprocess,andeffectonenvironmentwereconsideredinCLAviathenutrientfunction,growthanddeclinerates,environmentevaluationandfertilizationstrategy.CLAwasappliedtosolvetheclassicalassignmentproblems.ThecomputationresultsshowthatCLAcanachievetheoptimalsolutionwithhigherpossibilityandshorterrunningtime.

简介：Usinglinearinterpolationmethod,VIREalgorithmsimplytreatsthesignalstrengthvalueanddistanceofthereferencetagasalinearrelationship,leadingtotheinaccuracyofsignalstrengthvalueforvirtualreferencetags.ThethresholdinVIREalgorithmisafixedvaluethatneedsrepeatedlyadjustmentthroughexperiments,whichresultsinthecomplicatedalgorithm.Tosolvetheseproblems,animprovedalgorithmisproposedinthispaper,includingnonlinearinterpolationalgorithm,dynamicthresholdsettingandtagself-correctionoffuzzymap,whichbuildsanindoorpositioningsystembasedonreferencetags.Theexperimentalresultsshowthattheimprovedalgorithmcanimprovethepositioningaccuracyandimprovethestabilityofpositioningresultsunderbadenvironmentalconditionswithoutincreasingthenumberofreferencetags.

简介：AbstractLung cancer continues to be the leading cause of cancer-related death in the world, which is classically subgrouped into two major histological types: Non-small cell lung cancer (NSCLC) (85% of patients) and small-cell lung cancer (SCLC) (15%). Tumor location has been reported to be associated with the prognosis of various solid tumors. Several types of cancer often occur in a specific region and are more prone to spread to predilection locations, including colorectal cancer, prostate cancer, gastric cancer, ovarian cancer, cervical cancer, bladder cancer, lung tumor, and so on. Besides, tumor location is also considered as a risk factor for lung neoplasm with chronic obstructive pulmonary disease/emphysema. Additionally, the primary lung cancer location is associated with specific lymph node metastasis. And the recent analysis has shown that the primary location may affect metastasis pattern in metastatic NSCLC based on a large population. Numerous studies have enrolled the "location" factor in the risk model. Anatomy location and lobe-specific location are both important in prognosis. Therefore, it is important for us to clarify the characteristics about tumor location according to various definitions. However, the inconsistent definitions about tumor location among different articles are controversial. It is also a significant guidance in multimode therapy in the present time. In this review, we mainly aim to provide a new insight about tumor location, including anatomy, clinicopathology, and prognosis in patients with lung neoplasm.

简介：Asoneofthemostimportanturbanlifelinesystems,awaterdistributionsystemcanbedamagedunderastrongearthquake,andthedamagecannoteasilybelocated,especiallyimmediatelyaftertheevent.Thisoftencausestremendousdifficultiestopost-earthquakeemergencyresponseandrecoveryactivities.Thispaperproposesamethodologytolocateseismicdamagetoawaterdistributionsystembymonitoringwatcrheadonlineatsomenodesinthewaterdistributionsystem.Anartificialneuralnetwork-basedinverseanalysismethodisdevelopedtoestimatethewaterheadvariationsatallnodesthatarenotmonitoredbasedonthewaterheadvariationsatthenodesthataremonitored.Themethodologyprovidesaquick,effective,andpracticalwaytolocateseismicdamagetoawaterdistributionsystem.

简介：Thepaperdescribesatexture-basedfasttextlocationschemewhichoperatesdirectlyintheDiscreteWaveletTransform(DWT)domain.Bythedistinguishingtexturecharacteristicsencodedinwavelettransformdomain,thetextisfastdetectedfromcomplexbackgroundimagesstoredinthecompressedformatsuchasJPEG2000withoutfulldecompress.Comparedwithsometraditionalcharacterlocationmethods,theproposedschemehastheadvantagesoflowcomputationalcost,robusttosizeandfontofcharactersandhighaccuracy.Preliminaryexperimentalresultsshowthattheproposedschemeisefficientandeffective.

简介：

简介：ThispapergivesanoverallintroductiontothebasicconceptofLAC(location-awarecomputing)anditsdevelopmentstatus,putsforwardanintegratedlocation-awarecomputingarchitecturewhichisusefulfordesigningthereasonablelogicalmodelofLBS(location-basedservice).Finally,abriefintroductionisconductedonaLACexperimentalprototype,whichactsasamobileurbantourismassistant.

简介：

简介：

简介：ForTimeDifferenceOfArrival(TDOA)locationbasedonmulti-groundstationsscene,twodirectsolutionmethodsareproposedtosolvethetargetpositioninTDOAlocation.Therein,thesolvingmethodsarerealizedintherectangularandpolarcoordinates.Ontheconditionofrectangularcoordinates,firstofall,itsolvestheradialrangebetweenthetargetandreferencestation,thencal-culatesthelocationofthetarget.Inthecaseofpolarcoordinates,theazimuthbetweenthetargetandreferencestationissolvedfirst,thentheradialrangebetweenthetargetandreferencestationisfiguredout,finallythelocationofthetargetisobtained.Simultaneously,thesimulationandcomparisonanalysisaregivenindetail,andshowthatthepolarsolvingmethodhasthebetterfuzzyperformancethanthatofrectangularcoordinate.

简介：Weproposeanddemonstrateamultifunctionallocation-dependentmetamaterialintheterahertz(THz)rangeinwhichtheunitcellconsistsoftwopairsofcoupledresonators.Experimentalandsimulationresultsofourdevicesrevealthatbothpairsofthecoupledresonatorswillkeeptheirindividualresonancemodeswhentheyjointogether.Thus,theoveralltransmissionspectrumisacombinationoffrequencyresponsespectraofitscorrespondingconstituentparts.Whilechangingthelocationsoftheinnerresonatorsinourstructure,controllablewidthoftransmissionwindowandchangeablenumberoftransmissiondipscanberealized.Ourdesignprovidesafeasiblestructureformultifunctionalmicroelectromechanicaldevices.

简介：Ｌｏｃａｔｉｏｎ　ｏｆ　Ｔｉｂｅｔａｎ　ｅａｒｔｈｑｕａｋｅｓ──ａ　ｎｏｎｌｉｎｅａｒ　ａｐｐｒｏａｃｈ　ｂｙ　ａ　ｓｉｍｐｌｅｘ　ｏｐｔｉｍｉｚｅｄ　ｔｅｃｈｎｉｑｕｅ（赵珠）（丁志峰）（易桂喜／）（王建格）ＬｏｃａｔｉｏｎｏｆＴｉｂｅｔａｎｅａ...

简介：Anewtechnologyoflightninglocationisdescribed,whichisbasedondetectingthestateofpolarization(SOP)fluctuationofthelaserlightintheopticgroundwire(OPGW).Comparedwiththeconventionallightninglocationmethod,thenewmethodismoreaccurate,morestable,andcheaper.TheoriesofStokesparametersandPoincaresphereareintroducedtoanalyzetheSOPatthelightningstrikepoint.ItcanbeconcludedthatalthoughtheinitialpointsofSOPonthePoincarespherearerandom,theSOPfluctuationgeneratedbylightningstrikecanstillbeaccuratelyidentifiedbydetectingthevelocityofpolarizationmotion.Anewalgorithmtoquantifythevelocityisalsointroduced.

简介：

简介：为预言在室内的空格的喷雾器粒子分散与试验性的数据被验证的一个建议计算机模型在文学发现了，并且然后被用来在排水量通风(DV)在粒子分散上学习区域和点来源地点的效果房间。结果证明那个喷雾器来源地点在空间分发和室内的粒子的移动率上有强壮的影响。粒子移动性能在室内的表面上强烈取决于通风效率和粒子免职率。为两相对通风效率和免职率的重要考虑相对主要气流模式和占据地区由喷雾器来源的位置组成。

简介：Usingthematrixapproach,weanalyzedtherelationbetweenthelocationofthetransmissioninstopbandandthephaseshift,anddiscussedtheproblemofvaryingthebandwidthofthetransmissionwindow.Thesetheoreticaltesultsinthispaperhaveimportantsignificanceforactualapplicationofthephase-shiftedfibergrating.