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简介：ThemicrostructureofsynthesizedAT(A-luminumtitanate)hasbeenimprovedefficient-ly,AndthemicrocrackofATformedduringcoolingandabnormalgraingrowthhavebeenlimitd.Therefore,thesinterabilityandmechanicalpropertiesofATmaterialhavebeenenhanced.

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简介：独角兽是西方神话传说中的一种虚构生物。形如白马，额前有一个螺旋角，代表稀有、高贵、高傲和纯洁。如今,这个西方世界的神兽，已经成为最具创新能力的成功食业的图腾.它能够在极短时间内，凭借自己独有的基因，率先深入挖掘新经济中的巨大机遇.

简介：Theinfluenceofinitialstrainstateonthedynamicresponseofanendbearingpileembeddedinisotropicsaturatedsoilisinvestigatedthroughthelinearizedtheoryofsmallelasticperturbationsuperposedonlargelystressedbodies.Thegoverningequationsforsoil,basedonBiot’sporoelasticitytheory,arederivedinthecylindricalcoordinates,andthepileismodeledbyusingtheone-dimensionalelastictheory.Theanalyticalsolutionsofpileimpedance,frequencyresponseofbothtwistangleandtimehistoryofvelocityresponseareobtainedbyusingofseparationofvariablestechnique.Finally,aparametricstudyoftheinfluenceofinitialstrainsonthetorsionalimpedance,twistangle,andvelocityresponseatthetopofthepileiscarriedout.

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简介：Asinreadingteaching,schematheoryhaslongbeentakingadominantpart.Accordingtothistheory,Englishteacherscanhelpthestudentstocalluptheirpriorknowledgebyplacinganemphasisonamoreefficientuseofpre-readingactivities.Oneoftheeffectiveactivitiesistomakegooduseofthepre-readingexercisesinthetextbook.Thispaperintendstoanalyzetheresultsoftwobriefinvestigations.Onewasaboutthepre-readingexercisesintheSEFC(NewEdition2010)Book1.Theotherwascar-riedoutamongthefirstyearstudentsfromNanhaiExperimentalHighSchoolofSouthChinaNormalUniversity.Englishteachersinhighschoolthuscantrainthestudentstomakelinksbetweenthetextandwhattheyalreadyknowaccordingtotheirinterests.

简介：Pre-paintedsteelisoneofthemostimportantstructuralmaterialofthe20thcenturywellknownforitsexcellentcorrosionresistanceandwiderangingapplications.Atypicalpre-paintedsteelusuallyconsistsofalayerofmetalcoatingsystem,preferablyzincorzincalloycoatingandacombinationoflayersofinorganic-organiccoatingsusuallyreferredtoaspaintsystem.Thecorrosionresistanceofthemetalcoatingaswellasthepaintsystemmayvaryconsiderablybasedontheircompositionandtheenvironment.Foroptimalcorrosionperformanceofpre-paintedsteel,ajudiciousselectionofbothmetalandinorganic-organiccoatingsystemsareessential.Thispaperreviewsdifferenttypesofpossiblecorrosionissuesinpre-paintedsteelsandmethodstooptimisetheirperformance.

简介：ThereisagoodcorrelationbetweenanomalousSchumannresonanceandseismicactivities.Pre-earthquakeanomalousSchumannresonanceisanimportantmanifestationofLAIC(Lithosphere-Atmosphere-IonosphereCoupling),whichisprobablyassociatedwithseismicionosphericdisturbance.TheobservationsystemparametersoftheYunnanSchumannresonancemonitoringstationsandtheresultsofstatisticalandseismiccasesanalysisareintroducedinthispaper.ThreedaysbeforetheMarch10,2011MS5.8Yingjiangearthquake,anomalousSchumannresonanceintheBycomponent(E-W)wasobservedbyYongshengstation,andtwodaysbeforetheLincangMS4.0earthquakeofJanuary23,2011,anomalousSchumannresonanceintheBycomponentwasdetectedbythesamestation.SpectrumanalysisresultsontheBycomponentobservationsofTonghaistationshowthatstrongdisturbanceswereobservedinspectraldensitycorrespondingtothefirstthreeSchumannresonantfrequenciesontheverydayoftheMS4.2HongheearthquakeofMay22,2011.ResearchshowsthatSchumannresonancemonitoringisafeasiblemethodforseismic-electromagneticprecursorsmonitoring.

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简介：Groningen:StyxPublications,1999.ISBN9056930311.Hfl.85,-.Asthetitlemightsuggest,thesecollectedessayspurporttodiscussanddifferentiategenrefromtypeinapre-moderncontextofculturesthathavewrittenrecords.However,thisisnotthecase,forastheeditorspointoutinthealltoobriefpreface,theessayscollectedinthisvolumemayatfirstsightseemstrangeand,indeed,abaroqueassemblageofapparentlytotallyunrelatedtopics(p.vii).Theygoontoclaimthat'thereseemstobeadoubleredthreadrunningthroughthismulti-colouredcloth.'Thesethreadsareidentifiedas...

简介：AbstractThe first practice of pre-implantation genetic testing (PGT) was reported more than 30 years ago. PGT, originally named preimplantation genetic screening (PGS) and pre-implantation genetic diagnosis (PGD), is now categorized as PGT for aneuploidies (PGT-A), PGT for monogenic/single-gene defects (PGT-M), and PGT for chromosomal structural rearrangements (PGT-SR). Patients with fertility issues caused by advanced maternal age, carrier status of chromosomal abnormalities, or harboring pathogenic variant(s) are recommended to undergo PGT to increase the possibility of successful live birth and avoid potentially affected newborns. High-throughput techniques, such as DNA microarrays and next-generation sequencing (NGS), have enabled comprehensive screening of all 24 chromosomes, instead of few loci at a time. Furthermore, as a comprehensive PGT, PGT-Plus was enabled by the rapid development of a genome-wide single-cell haplotyping technique to detect embryo aneuploidy, single-gene disorders, and chromosomal aberrations simultaneously using a single universal protocol. In addition, non-invasive approaches enable a more intact embryo during the biopsy procedure, which may avoid potential mosaicism issues at a certain scale by testing spent culture media (SCM). As a novel PGT application, PGT-P detects genome-wide variations in polygenic diseases, which account for a large proportion of premature human deaths and affect a markedly larger population than monogenic diseases, using polygenic risk score calculation to decrease the potential of affecting complex conditions. Owing to the emergence of new technologies recruited to PGTs, more couples with infertility issues have a promising chance of conceiving a healthy baby, ultimately facilitating the human species to live more prosper.

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简介：新经济作为助推经济转型发展的新引擎，正在不断改造和提升传统动能，释放新的动力和活力。时下大热的独角兽企业，通过其自身的爆发式增长，正引领着我国新经济的发展。

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