简介:Hidingdatainthedeoxyribosenucleicacid(DNA)canfacilitatetheauthenticationandannotationofimportantplantvarietyrights.Agrantofplantvarietyrightsforanewplantvarietygivesyoutheexclusiverighttoproduceforsaleandsellpropagatingmaterialofthevariety.Digitalwatermarkingtechniqueshavebeenproposedforawiderangeofapplications,includingownershipprotection,copycontrol,annotation,andauthentication.However,existingdatahidingmethodsforDNAchangethefunctionalitiesofDNAsequences,whichinducemorphologicalchangesinbiologicalpatterns.ThispaperproposesahighcapacitydatahidingschemeforDNAwithoutchangingthefunctionalitiesofDNAsequences.Thisschemeadaptivelyvariestheembeddingprocessaccordingtotheamountofhiddendata.Experimentalresultsshowthattheproposedschemegivesasignificantlyimprovedhidingperformancethanpreviousschemes.Andtherobustnessandsecurityissuesarealsoanalyzed.
简介:新奇biopolymer,脱氧核糖核酸acid-hexadecyltrimethylammonium氯化物(DNA-HCTAC),当在光波导的核心层材料,和cleanroom技术成功地被使用与低繁殖损失制作单个模式的隧道波导,被使用。准备DNA-HCTAC材料在光电信波长显示出高光的质量,例如高透明性,相对高的折射索引和低birefringence。在制造途径,polymethylmethacrylate(PMMA)被用作障碍层保护DNA-HCTAC材料免受光致抗蚀剂开发者的腐蚀剂的伤害,并且蚀刻的条件被优化形成光滑的墙和波导的锋利的剖面图。最后,DNA-HCTAC隧道波导的光特征被测量。结果证明DNA-HCTAC波导与单个模式的繁殖操作并且有低光损失。
简介:<正>00576ACompactTransceiverforWideBandwidthandHighPowerK-,Ka-,andV-BandApplications/D.Yamauchi,R.Quon.Y-HChungetal(NorthropGrummanSpaceTechnology)//2003IEEEMTT-sDigest.—2015用当今先进的InPMMICs和先进的封装技术演示了一种宽带宽(13%~54%)高功率(>500mW)K、Ka及V波段小型收发机。该组件有30多块MMIC和200多个元器