Eavesdropping on the Orderly-Encrypting Multiparty Quantum Secret Sharing Protocols

0 IntroductionSuppose the president of a bank,Alice,wantsto give ac-cess to a vault to two vice-presidents ,Bob and Charlie,whomshe does not entirely trust .Instead of givingthe secretto any one of them,she may desire to distribute the informa-tioninsuch a waythat no vice-president alone has any knowl-edge of the secret ,but both of themcanjointly determine thesecret .Cryptography provides the answer to this question inthe formof secret sharing[1 ,2],where secret messages are dis-tributed amo…     

Novel quantitative non-destructive testing method for composite structures

A novel QNDT (quantitative non-destructive testing) method is developed that is combined with a phase-shifting shearing speckle and thermograph, and, it aims at the detection of faults such as cracks, voids, delamination and weak areas. The technique is immune to ambient noise and is suitable for measuring the in situ environment. Some different depth defects that would produce deformation differing from other positions could be found with shearing speckle when the sample is loaded, however, a thermograph based on the thermal resistance effect of a defect can detect only those varisized defects embedded deeply in the composite structure by measuring the surface temperature distribution. The resolution is examined for artificial delaminated defects in carbon-fiber composite structures using a phase-shifting shearing speckle and thermograph. The experimental results have demonstrated that the technique is effective for revealing defects in composite structures.     

SYMPLECTIC SCHEMES FOR NONAUTONOMOUS HAMILTONIAN SYSTEM

ＳＹＭＰＬＥＣＴＩＣＳＣＨＥＭＥＳＦＯＲＮＯＮＡＵＴＯＮＯＭＯＵＳ　ＨＡＭＩＬＴＯＮＩＡＮ　ＳＹＳＴＥＭＱＩＮＭＥＮＧＺＨＡＯ（秦孟兆）（ＩｎｓｔｉｔａｔｅｏｆＣｏｍｐｕｔａｔｉｏｎａｌＭａｔｈｅｍａｔｉｃｓａｎｄＳｃｉｅｎｔｉｆｉｃ－Ｅｎｇｉｎｅｅ...     

泡沫塑料吸附—石墨炉原子吸收光谱法测定地质物料中痕量铊

本文研制定了一种泡沫塑料吸附－石墨炉原子吸收光谱法测定地质物料中痕量铊的分析，在所先定的实验条件下，方法检出限为０．０５μｇ／ｇ、样准曲线范围为１０－３００ｎｇ／ｍＬ，Ｔｌ含量水平为０．７１μｇ／ｇ时的测定精度为６．０％，方法回收率９９．０％－１００．０％。经标样及大量样品分析验证，分析方法准确可靠。     

组合夹具CAD中子组装模块参数化设计的研究

本文提出了组合夹具CAD子组装模块的概念,进行了参数化设计的探讨。文中重点叙述了参数化设计的方法及其优越性,并对设计中的具体问题,如夹具元件的确定,参数的输入、模块的生成等,做了深入的介绍。     

Chiral Separation of Esmolol and Terazosin by Cyclodextrinmodified Capillary Zone Electrophoresis

IntroductionTheincreasingnecessity0fpharmacologicalresearchforchiraldrugshasrenderedchiralseparationanactiveareaincaPillaryelectroph0resis(CE)today.Variousmodes0fCE,includingcaPillaryzoneelectroph0resis(CZE),micellarelectrokineticchromatography(MEKC),caPillarygelelectrophoresis(CGE)andcapillaryisotachophoresis(CITP),havebeenappliedforthispurp0se',amongwhichCZEisthemostpopularoneforitshighefficiency,lowexpenseandeaseofoperation.Forsuccessfulchiralseparati0ninCZE,theselectortypeisofcr…     

N－（1－氧代－1－磷杂－2，6，7－三氧杂双环［2．2．2］－辛烷－4－羰基）－N＇－芳（烷）基硫脲的合成及结构研究

首次合成了酰基异硫氰酸酯４，并将其与各种芳胺、脂肪胺和肼衍生物加成，得到了２２种未见文献报道的含双环笼状磷酸酯结构的酰基硫脲化合物（５ａ－５ｘ）。４与丁胺反应未得到预期的加成产物，而得到相应的取代产物６。研究了５的结构。     

四价铈卟啉配合物的合成和性质研究

由于镧系卟啉配合物具有优于d过渡金属卟啉配合物的特殊光学和磁学性能,因而越来越引起人们的浓厚兴趣。但是,十多年来,这方面的研究工作主要集中在三价稀土卟啉配合物上,还未见到四价稀土卟啉配合物的报道。我们合成了铈(Ⅳ)的卟啉配合物,并研究了它们的光谱性质。     

Moduli of simple rank-2 sheaves onK3-surfaces

We study the birational structures of the moduli spaces of simple rank-2 sheaves over aK3-surfaceX. We show that these birational structures are closely related to the Hilbert schemes ofX. Our results provide a complete answer to a problem (rank-2 case) of A.N. Tyurin whenX is an ellipticK3-surface.     

不同选通条件下对光谱烧孔孔深的研究

本文从理论上分析了低激发密度下,选通光分别为脉冲光和连续光时,孔深随时间的变化,得到可以通过脉冲光烧孔、连续光选通的方法缩短烧孔时间.应用BaFCl_0.5Br_0.5:Sm²⁺(2%)进行了实验,分析了单脉冲烧孔的孔深.