很多朋友在浏览网页的时候会遇到浏览器”卡死”的情况，这多半是因为该网页中有嵌入式的ActiveX插件需要提示安装。为了对付这个问题．市面上有很多相关的“免疫”软件，如NoTroubleMe等，而且Windows XP SP2中也提供了该功能。不过这...很多朋友在浏览网页的时候会遇到浏览器”卡死”的情况，这多半是因为该网页中有嵌入式的ActiveX插件需要提示安装。为了对付这个问题．市面上有很多相关的“免疫”软件，如NoTroubleMe等，而且Windows XP SP2中也提供了该功能。不过这些思路都比较被动，如果遇到新的ActiveX程序，他们就无能为力了。下面笔者来介绍自己的解决方案。展开更多
GF14 widely occurs in plant species functioning as a regulatory protein in cell signal transdution, including monoamine synthesis, exocytosis and cell cycle regulation. A partial sequence, 413 bp in length, is cloned ...GF14 widely occurs in plant species functioning as a regulatory protein in cell signal transdution, including monoamine synthesis, exocytosis and cell cycle regulation. A partial sequence, 413 bp in length, is cloned from the bulbs of F. crrihosa by means of RT PCR technique. Sequence alignment with the BLAST program shows that it is highly similar to GF14 gene. A new full length cDNA, 1133 bp, is obtained by RACE techniques. It contains a major open reading frame of 262 amino acids, 5’and 3’ untranslated regions and a long Poly (A) tail. Sequence analysis of deduced GF14 protein from F. crrihosa indicates several conserved motifs of GF14 proteins are also found in sequence of GF14 protein of F. crrihosa.展开更多
Poly(e-caprolactone) (PCL) with weight-average molar mass over 10000 g/mol was synthesized by microwave-assisted ring-opening polymerization of e-caprolactone (e-CL) with maleic acid (MA) as initiator (2.45 GHz, 360 W...Poly(e-caprolactone) (PCL) with weight-average molar mass over 10000 g/mol was synthesized by microwave-assisted ring-opening polymerization of e-caprolactone (e-CL) with maleic acid (MA) as initiator (2.45 GHz, 360 W, 85 min). Ibuprofen-PCL controlled release system was prepared directly by the ROP of e-CL in its mixture with ibuprofen. The release of ibuprofen from the system was sustained and steady.展开更多
Microperoxidase 11(MP 11) was immobilized on the surface of a silanized glass carbon electrode by means of the covalent bond with glutaraldehyde. The measurements of cyclic voltammetry demonstrated that the formal r...Microperoxidase 11(MP 11) was immobilized on the surface of a silanized glass carbon electrode by means of the covalent bond with glutaraldehyde. The measurements of cyclic voltammetry demonstrated that the formal redox potential of immobilized MP 11 was -170 mV, which is significantly more positive than that of MP 11 in a solution or immobilized on the surface of electrodes prepared with other methods. This MP 11 modified electrode showed a good electrocatalytic activity and stability for the reduction of oxygen and hydrogen peroxide.展开更多
With the (k,n) -threshold scheme of secret sharing in the field of information security technology asan application background,the concept of set ( k,n)-exact cover is presented in this paper.It is a modificationof th...With the (k,n) -threshold scheme of secret sharing in the field of information security technology asan application background,the concept of set ( k,n)-exact cover is presented in this paper.It is a modificationof the original concept of set covering problem.It is also different from the concept of exact coverdefined by J.E.Hopcroft.Some properties of ( k,n) -exact cover are investigated;a sufficient conditionfor a set to be ( k,n ) -exactly coverable is given.It follows that a feasible assignment scheme of a set forthe (k,n) -exact cover is obtained if this set satisfies the sufficient condition.展开更多
A new iridoid glucoside,allamanoid(1),was isolated from the aerial parts of Allamanda neriifolia,together with three known glucosides,plumieride,protoplumericin,and nicotiflorin.Their structures were elucidated by 1D ...A new iridoid glucoside,allamanoid(1),was isolated from the aerial parts of Allamanda neriifolia,together with three known glucosides,plumieride,protoplumericin,and nicotiflorin.Their structures were elucidated by 1D and 2D spectroscopic analyses, hydrolysis,and comparison with literature data.展开更多
文摘很多朋友在浏览网页的时候会遇到浏览器”卡死”的情况，这多半是因为该网页中有嵌入式的ActiveX插件需要提示安装。为了对付这个问题．市面上有很多相关的“免疫”软件，如NoTroubleMe等，而且Windows XP SP2中也提供了该功能。不过这些思路都比较被动，如果遇到新的ActiveX程序，他们就无能为力了。下面笔者来介绍自己的解决方案。
文摘GF14 widely occurs in plant species functioning as a regulatory protein in cell signal transdution, including monoamine synthesis, exocytosis and cell cycle regulation. A partial sequence, 413 bp in length, is cloned from the bulbs of F. crrihosa by means of RT PCR technique. Sequence alignment with the BLAST program shows that it is highly similar to GF14 gene. A new full length cDNA, 1133 bp, is obtained by RACE techniques. It contains a major open reading frame of 262 amino acids, 5’and 3’ untranslated regions and a long Poly (A) tail. Sequence analysis of deduced GF14 protein from F. crrihosa indicates several conserved motifs of GF14 proteins are also found in sequence of GF14 protein of F. crrihosa.
基金This work was financially supported by the Research Foundation of MOE and National 973 Project of China (G1999064703).
文摘Poly(e-caprolactone) (PCL) with weight-average molar mass over 10000 g/mol was synthesized by microwave-assisted ring-opening polymerization of e-caprolactone (e-CL) with maleic acid (MA) as initiator (2.45 GHz, 360 W, 85 min). Ibuprofen-PCL controlled release system was prepared directly by the ROP of e-CL in its mixture with ibuprofen. The release of ibuprofen from the system was sustained and steady.
基金Supported by"973" Project(No. G2 0 0 0 0 2 6 4 0 8) the National Natural Science Foundation of China(No.2 99730 15 ) the Natural Science Foundation of Heilongjiang Province(B2 0 0 0 - 0 6 ) and the Natural Science Foundation of Eduction Comm it-
文摘Microperoxidase 11(MP 11) was immobilized on the surface of a silanized glass carbon electrode by means of the covalent bond with glutaraldehyde. The measurements of cyclic voltammetry demonstrated that the formal redox potential of immobilized MP 11 was -170 mV, which is significantly more positive than that of MP 11 in a solution or immobilized on the surface of electrodes prepared with other methods. This MP 11 modified electrode showed a good electrocatalytic activity and stability for the reduction of oxygen and hydrogen peroxide.
基金Supported by the National Natural Science Foundation of China (No. 60673053 90718011 )
文摘With the (k,n) -threshold scheme of secret sharing in the field of information security technology asan application background,the concept of set ( k,n)-exact cover is presented in this paper.It is a modificationof the original concept of set covering problem.It is also different from the concept of exact coverdefined by J.E.Hopcroft.Some properties of ( k,n) -exact cover are investigated;a sufficient conditionfor a set to be ( k,n ) -exactly coverable is given.It follows that a feasible assignment scheme of a set forthe (k,n) -exact cover is obtained if this set satisfies the sufficient condition.
基金supported by grants from National Natural Science Foundation of China(No.30123005)National Key Project of Scientific and Technical Supporting Programs Funded by Ministry of Science & Technology of China(No.2006BAI06A14-07)
文摘A new iridoid glucoside,allamanoid(1),was isolated from the aerial parts of Allamanda neriifolia,together with three known glucosides,plumieride,protoplumericin,and nicotiflorin.Their structures were elucidated by 1D and 2D spectroscopic analyses, hydrolysis,and comparison with literature data.
