简介：ＷＩＬＤ─Ａ１０仪投影器主付轴的校正游传金（武汉测绘院汉口）出厂编号ＮＯ：４０５４之后的ＷＩＬＤ－Ａ１０仪，投影器在ＸＺ平面内绕ＡＡ轴转动，称为绕主轴旋转；而投影器在ＹＺ平面内绕ＢＢ轴转动，定义为绕付轴旋转，（见图１）ＡＡ轴与ＢＢ轴理应精确交于一点，...

简介：Outof1989wildaccessionssowninseedboxesforscreening,only1003wildaccessionswithgoodgerminationwerescreenedagainstbrownplanthopper(BPH),Nilaparvatalugens(St?l)undergreenhouseconditions.Thecollectioncomprisedofaccessionsfrom11wildspeciesandAfricancultivatedrice.ThegermplasmwasscreenedforBPHfollowingstandardseedboxscreeningtechniqueinthegreenhouse.Asmanyas159accessionswereidentifiedasresistantduringtheyear2012basedononeyearscreening.AselectedsetofBPHresistantaccessionswerescreenedagainduring2013.Basedonthetwoyearsscreening,sevenaccessionsofO.nivara(AA),oneaccessionofO.officinalis(CC),sevenaccessionsofO.australiensis(EE),fiveaccessionsofO.punctata(BBandBBCC)andnineaccessionsofO.latifolia(CCDD)wereconfirmedtoberesistanttoBPH.SofarnoBPHresistancegeneshavebeenidentifiedanddesignatedfromO.nivaraandO.punctata,hencethesemayactasnewsourcesofresistance.

简介：Inthispaper,awildboarheadwastakenasthebionicresearchobjectforthedevelopmentofnewridgers,akindofplough.Thereverseengineeringtechnologywasadoptedtoobtainthesurfacegeometricalinformationofthehead.Severalthree-dimensional(3D)pointcloudsoftheheadwerecapturedfirstusinganon-touchlaserscanner,andanintegratedpointcloudwasgeneratedbyaligningthesepointcloudsusingUG/Imageware.Then,thedigitalsurfacemodeloftheheadwasrebuiltbymeansofCATIA.Thecharacteristiccurvesofthesurfacemodelwereanalyzed.Theresultsshowthattheaverageerrorbetweentherebuiltsurfaceandthepointcloudis?0.431mm.Themaxcurvatureoftheridgeontheneboftheheadis0.187mm?1,andthemaxandminGausscurvaturesonthesurfaceare0.008mm?2and?0.002mm?2.Thesegeometricalinformationaretheessentialparametersforbiomimeticsstudyoftheridger.

简介：Abstract:FortyspeciesofBasidiomycotafrom21generain15families,collectedfromLiuxiheNationalForestPark,Guangzhou,China,havevaluesforusebylocalpeople.Morethanhalfofthespeciescollectedareedible,andsome(Lactariusdeliciosus,Boletusspp.)aregatheredforcommercialconsumptioninSouthChina.Tenspecieshavemedicinalproperties,andincludeDictyophora,Ganoderma,PisolithusandScleroderma.Over60%species(26taxa)areectomycorrhizalinvolving12ediblefungi.ThemostabundantfamiliesweretheAmanitaceae,BoletaceaeandSclerodermataceae,whichformimportantectomycorrhizalassociationswithconiferousandmixedbroad-leafedtreesinthePark.Prospectiveusesofthesemacrofungiarediscussed.

简介：Inthisstudy,familiesofselectedpopulationforgrowth(SP_BWT),selectedpopulationforwhitespotsyndromevirus(WSSV)resistance(SP_RW),Bohaiwildpopulation(WP_BH)andHuanghaiwildpopulation(WP_HH)ofF.chinensiswereconstructedthroughartificialinseminationandwiththestandardizedprocedureoflarvaerearing.Growthandsurvivalperformancewerestudiedamongfourpopulationsaftera70dayscommontest.Theresultsshowedthatthemaximumleastsquaremeanofbodyweightwas17.50ginSP_BWTwhiletheminimumwas13.03ginWP_HH.ComparedwithWP_BH,bodyweightofSP_BWTincreasedby23.41%(P<0.01)andthatofSP_RWby12.20%(P>0.05).BodyweightsofSP_BWTandSP_RWweresignificantlyhigherthanthatofWP_HH,whichincreasedby34.31%(P<0.01)and22.10%(P<0.05),respectively.ThemeanAGRoffourpopulationswas0.19,0.18,0.17and0.16gd-1,respectively.Coefficientofvariationofbodyweightamongfourpopulationswashigh,whichrangedfrom32.67%to35.25%.Sucharangeshowedthattherewasthepotentialityforfurtherimprovementinselectedpopulations.Coefficientofvariationofsurvivalrateamongfourpopulationswaslow,varyingbetween3.20%and5.90%.Thedifferenceofsurvivalwashighlysignificant(P<0.01)betweenSP_BWTandWP_BH,andsignificant(P<0.05)betweenSP_RWandWP_BH.However,nosignificantdifferenceamongotherpopulations(P>0.05)wasobserved.Differentgrowthperformanceswerealsoobservedamongdifferentfamiliesineachpopulation.Thebodyweightof798Ffamilywasthehighest.Theabsolutegrowthrate(AGR)was0.25gd-1,150%higherthanthatofthelowestone,0.1gd-1in807Ffamily.Survivalrateoffamiliesamongfourpopulationswasdifferent.Thehighestwas94.74%,andthelowestwas71.88%.

简介：WILD表示无线交互学习设备，它将学习者带入先前不可达到的活动，对课堂动力和真实世界中的学习有独特作用；这种真实世界中的学习既包括正式境脉，也包括非正式境脉。WILD学习的未来为学习科学提供了令人兴奋的未完全开垦的领域。

简介：Thisstudywasconductedtodevelopandcharacterizeanovelcytoplasmicmalesterile(CMS)sourcewhichwasidentifiedfromDongxiangwildrice(Oryzarufipogon)bycrossingDongxiangwildriceasfemalewithZhongzao35,anindicainbredvariety,asmaleandcontinuousbackcrossingwithZhongzao35.ObservationunderopticalmicroscopemanifestedthatthisnovelCMSbelongedtotypicalabortiontypewithlesspollencomparedwithwildabortivetypecytoplasm(CMS-WA).SequentialplantingshowedthatthisnovelCMShascompleteandstablemalesterility.Testcrossexperimentshowedthatallthe24testedmaterialsincludingmaintainerandrestorerlinesofCMS-WAandHongliantypecytoplasm(CMS-HL)andotherindicainbredvarietiesarethemaintainerswithcompletemaintainingability,suggestingthatthisnovelCMShasfertilityrestorationtotallydifferentfromCMS-WAandCMS-HLandbelongstoanoveltypeofCMS.Sofar,weonlydiscoveredauniquefertilityrestorationsourceforthisnovelCMS.InheritanceanalysisshowedthatthefertilityrestorationofthisCMSwasgovernedbythreepairsofindependentdominantgenes.ProspectforapplicationofthisnovelCMSsysteminhybridricebreedingwasalsodiscussed.

简介：《IntotheWild》又译为《荒野生存》，先后获得美国哥谭奖、金球奖、影评人协会奖及奥斯卡两项提名。改编自著名作家：JonKrakauer的同名小说。1992年，在美国阿拉斯加的一个废弃公交车里．人们发现亍一具腐烂的尸体。经调查，这位死者叫克里斯多福·强森·麦克肯多斯，

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简介：WILD-A10仪带地球曲率自动改正装置的77点方格网量测精度有时很低，达不到0．05‰。其原因是地球曲率自动改正装置机械部分有故障。因此，不但应对地球曲率自动改正装置进行通常的三项检校，还应补充地球曲率自动改正装置的触头与地球曲率自动改正板吻合性检校。

简介：AbstractPurpose:The human-wildlife conflicts (HWCs) causing nuisances and injuries are becoming a growing public health concern over recent years worldwide. We aimed to study the demographic profile, mode of injury, pattern of injury, and outcome of wild animal attack victims presented to the emergency department.Methods:This retrospective cross-sectional study was conducted in the emergency department of a tertiary-care hospital in Eastern India. Data were retrieved from the medical records from May 2017 to May 2021. Patients of all ages and genders attacked by wild animals and secondary injuries were included in this study. Patients with incomplete data, injuries due to the attack of stray and domestic animals and trauma due to other causes were excluded. Demographic profile, mode of injury, the pattern of injury, injury severity score (ISS), radiological pattern, and outcome were recorded. Statistical analysis with R (version 3.6.1.) was conducted.Results:A total of 411 wild animal attack victims were studied, of which 374 (90.9%) were snakebite injuries and 37 (9.1%) were wild mammalian (WM) attack injuries. The mean age of WM attack victims was 46 years, and the male-to-female ratio was 4:1. Elephant attack injury (40.5%) was the most common WM attack injury reported. Most WM attacks (43.2%) occurred between 4:00 a.m. to 8:00 a.m. The median ISS was 18.5 (13-28), where 54.2% of patients had polytrauma (ISS>15). Elephant attack was associated with a higher ISS, but the difference was not significant compared to other animal types (p= 0.2). Blunt trauma was common pattern of injury in the elephant attack injury cases. Lacerations and soft tissue injuries were common patterns in other animal attacks. Among snakebites, neurotoxic was the most common type (55.4%), and lower extremity was the most common site involved.Conclusion:The young male population is the major victim of HWCs; and elephant is the most common animal involved. There is a need to design scientifically sound preventive strategies for HWCs and to strengthen the preparedness in health establishments to manage victims effectively.

简介：TheaimofthisstudywastoexplorethemolecularbasisfortheattenuationoftheJapaneseencephalitisvirus(JEV)vaccinestrainSA14-14-2.ThevirulenceofSA14wildJapaneseencephalitisvirus(JEV)anditsseveralattenuatedviruseswastestedbyintracerebral(i.c.)orintraperitonial(i.p.)inoculationof10-12gmice.Thestabilityofneuroattenuationwastestedbyonepassageinsucklingmousebrain.TheEproteingenesofthoseviruseswereamplifiedbyPCR,sequencedandcompared.Threeattenuatedvirusstrains,SA14-14-2vaccinevirus,SA14-9-7andSA14-5-3,didnotexhibitlethalinfectionsbyi.c.ori.p.inoculationof10-12gmiceandreverttothevirulence.Theothervirusstrain,SA14-12-1-7,showednoneuroinvasivenessbyi.p.inoculationbutresidualneurovirulencebyi.c.inoculationandrevertedtohighvirulenceafteronebrainpassage.ComparisonoftheEproteingenesequencesofthefivevirusstrainsindicatedthatthereweredifferencesoftwelvenucleotidesandeightaminoacidsbetweentheparentstrainSA14andvaccinestrainSA14-14-2,ofwhichsixaminoacids(E-107,E-176,E-439,E-138,E-279,E-315)exhibitedchangescommontothoseofSA14-9-7andSA14-5-3,threesubstitutionscommontoSA14-12-1-7.TwoaminoacidsubstitutionsatthesitesE177(T→A)andE264(Q→H)areuniquetotheSA14-14-2vaccinevirus.TheresultssuggestthatthemutationsofE-107(Leu→Phe),E-176(He→Val),andE-439(Lys→Arg)maycontributefortheattenuationofneuroinvasivenessandpartiallyfortheattenuationofneurovirulence,themutationsofE-138,E-279,E-315maynotonlycriticaltotheneuroattenuationbutalsotoitsstability.

简介：Alargenumberofplantremainswerediscoveredintheancient-woodslayerofZhujiajianIsland,ZhejiangProvince.Thereweresomethicktrunks,completelaminas,fruit,seedsandsoon.Accordingtoradiocarbontestsconductedforplantremains,theancient-woodslayerhasbeendatedbacktoabout8750-6200years,andthevegetationwasasubtropicalevergreenanddeciduousbroad-leavedmixedforestsontheislandinthepast.Inthemiddleoftheancient-woodslayer,twograinsofwildricewereexploredaccidentally,whichareOryzarufipogon,alongwiththefruitandseedsofsomewaterplants,suchasCeratophyllumdcmcrsum,C.oryzetoum,Euryalefetox,Trapaincisavar.quadricaudata,Scirpusyagaraandsoon.Theremightbemarshysoilandapondinancientforestvegetationfromwherethegrainsofwildriceandhydrophyticfruitwerefound.ItisoftremendousimportancetostudytheoriginofwildriceinChina.

简介：介绍不同型号的GPS接收机进行联合测量的可行性实验结果以及在实际工程中的应用,为生产单位提高设备利用率,加快工作效率提供了新的途径.

简介：Background:Theroleofwildfoodsincombatingproblemsoffoodshortageisparamount.However,existingapproachestocombatfoodinsecurityshockhavegenerallyfocusedonreducingvulnerabilityviaincreasingproductivityofdomesticatedfoods.Incontrast,approachesthatenhanceresiliencemainlythroughwildfoodsourceshavebeenlessfocused.ThisstudyexaminedthecontributionofwildfoodstohouseholdresiliencetofoodinsecurityinthegreenfaminebeltofEthiopia.Methods:Across-sectionalsurveyof220householdswasconductedusingastructuredquestionnaire,keyinformantinterviews,andsemi-participantobservations.FactoranalysiswasrunusingSPSStoanalyzedata.Correlationanalysiswasusedtoexaminethedirectionandstrengthofassociationbetweenwildfoodsandtheincomeandfoodaccess(IFA),alatentproxyindicatorofresilience.Cross-tabulationwasalsoruntodeterminetheproportionofhouseholdsineachethno-culturegroupundereachresiliencecategory.Results:Themeanamountofwildfoodsobtainedbyhouseholdswas156.61kgperhouseholdperannum.Thiswasabout5%and9%of,grossand,netfoodavailablefromallsourcesrespectively.Wildfoodscontributedwelltohouseholdresilienceasthefactorloading(Factor2=0.467)waslargeenoughandweresignificantlycorrelatedwithIFA(r=0.174).Wildvegetableswerethemostcollectedandconsumedtypeofwildfoodsconstituting52.4%oftotalamountofwildfoods.Thetotalamountofwildfoodswassmallerthanthatofdomesticatedsourcesoffood.Themajorityofhouseholds(38.6%)reported'reducedsourceofwildfoods'asareasonforthis.Smallerproportionoftheindigenous(11.2%)thanthenon-indigenous(34.1%)ethno-culturegroupreportedoneormorereasonsfortheirlowerlevelofdependenceonwildfoods.Conclusion:Fromthestudyweconcludedthatwildfoodshadimportantcontributiontohouseholds'resiliencetofoodshortagesandarelikelytocontinuetocontributeinthefuture,thisbeingmoretoindigenousthannon-indigenousethno-

简介：wildDI4L大测程红外测距仪是DI4测距仪的改进型，它仅比DI·4增加了测距。DI4L重量轻，体积小，结构严密，性能稳定，自动化程度高，操作简便，耗电量少，适合于控制测量、地形测量、工程测量等野外距离测量工作，深受广大测量工作者的欢迎。该仪器由瑞士威尔特（wild）厂生产，一九八一年开始投放市场，是目前世界上最先进的测距仪之一。

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简介：到单一经营种植园的昆虫的反应主要在损坏自然森林区域的情况下继续了，并且是在生态学和保存生物学的一个突出、重要的问题，与授粉服务在全世界衰退了。在这研究，种类丰富和分发hoverfly并且野生的蜜蜂社区在一个变化被调查在南部的云南的热带风景，由不适的西南中国从2008～2009周期性地套住。种类从传统的陆地使用类型(自然森林，草地，shrubland和稻田休闲)被记录，并且从最近建立了不同年龄的橡胶种植园。Hoverflies(总数53种类)在植被的年轻接连著的阶段是很普通的，包括稻田休闲和shrubland。种类丰富在稻田休闲是最高的并且在森林里最低并且与非禾本草本植物种类和地面植被盖子的数字显示出一种高度重要的关系。相反，野生的蜜蜂(总数44种类)的最高的丰富从自然森林地点被记录，它与留下的产地类型相比显示出一篇分离蜜蜂社区作文。在蜜蜂种类丰富和环境变量之间没有重要关系，包括不同植物生活表格，华盖的范围和地面植被的数字，植被的接连著的年龄和陆地使用打字。在风景规模，包括年轻橡胶种植园，开的陆地使用系统被假定增加hoverflies的种类丰富；然而，这可能减少野生的蜜蜂差异。由橡胶耕作的现在的陆地使用变化能被期望在本国的野生的蜜蜂社区上有否定影响。

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简介：Background:Theglobalsearchfornewwaystosequestercarbonhasalreadyreachedagriculturallands.Suchlandconstitutesamajorpotentialcarbonsink.Theproductionofhighvaluetimberwithinagroforestrysystemscanfacilitateanin-situcarbonstoragefunction.Thisisfollowedbyapotentiallongtermex-situcarbonsinkwithinlonglastingproductssuchasveneerandfurniture.Forthispurposewildcherry(PrunusaviumL.)isaninterestingoptionformiddleEurope,yieldinghighpricesonthetimbermarket.Methods:Atotalnumberof39wildcherryweresampledin2012and2013toassesstheleaflessabovegroundbiomass.Thecompletetreesincludingstemandbrancheswereseparatedinto1cmdiameterclasses.Woodandbarkfromsub-sampleswereanalysedseparatelyandnutrientcontentwasderived.Modelsforbiomassestimationwereconstructedforalltreecompartments.Results:Thesmallestdiameterclassespossessthehighestproportionofbarkduetosmallercrosssectionalarea.Treeboleswithagreateramountofstemwoodabove10cmindiameterwillhaveamoreconstantbarkproportion.Totalbranchbarkproportionalsoremainsrelativelyconstantaboved_(1.3m)measurementsof8cm.Abalanceisevidentbetweentheproductionofnewbrancheswithalowdiameterandhighbarkproportionoffsetbythethickeningandarelativereductioninbarkproportioninlargerbranches.Theresultsshowthatasingletreewithanageof17and18yearscanstoreupto85kgofcarbonwithintheabovegroundbiomassportion,anamountthatwillincreaseasthetreematures.Branchesdisplaygreaternutrientcontentthanstemsectionspervolumeunitwhichcanbeattributedtoagreaterbarkproportion.Conclusions:Usingthederivedmodelsthecarbonandthenutrientcontentofabove-groundwoodybiomassofwholetreescanbecalculated.Suggestedvaluesforcarbonwithothermajorandminornutrientsheldwithinrelativelyimmaturetreesstronglysupportstheideaoftheinclusionofwildcherrywithinagroforestrysystemsasan