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    • 13. 发明申请
    • POLYLACTIC ACID FILM
    • 聚酰胺薄膜
    • US20110224342A1
    • 2011-09-15
    • US13119671
    • 2009-09-29
    • Shigeyoshi MasudaKohei EndoKinji Hasegawa
    • Shigeyoshi MasudaKohei EndoKinji Hasegawa
    • C08L67/04C08K5/521B29C55/12
    • C08J5/18C08J2367/04C08L67/04C08L2205/02G02F1/13363C08L2666/18
    • The polylactic acid film is obtained by melt extruding polylactic acid (A) prepared by melt kneading together polylactic acid (B) which comprises an L-lactic acid unit as the main ingredient and polylactic acid (C) which comprises a D-lactic acid unit as the main ingredient in a specific weight ratio, wherein the polylactic acid film has: (a) a stereocomplex crystal rate (S) defined by the following equation (i) of 90% or more: S={(ΔHmsc/(ΔHmsc+ΔHmh)}×100  (i) (in the above equation, ΔHmh is the melting enthalpy of a low-melting point crystal melting peak at a temperature lower than 190° C. obtained by differential scanning calorimeter (DSC) measurement and ΔHmsc is the melting enthalpy of a high-melting point crystal melting peak at a temperature of 190° C. or higher obtained by DSC measurement), (b) a haze of 10% or less, and (c) a haze change of 5% or less after it is heated at 140° C. for 10 minutes.
    • 通过熔融挤出通过熔融捏合聚乳酸(A)而得到的聚乳酸薄膜,该聚乳酸(A)通过以包含L-乳酸单元为主要成分的聚乳酸(B)和包含D-乳酸单元的聚乳酸 作为主要成分,其中聚乳酸膜具有:(a)由下式(i)定义的立体络合物结晶速率(S)为90%以上:S = {(&Dgr; Hmsc /( &Dgr; Hmsc +&Dgr; Hmh)}×100(i)(在上式中,&Dgr; Hmh是通过差示扫描量热计获得的低于190℃的低熔点晶体熔融峰的熔融焓 (DSC)测定和&Dgr Hmsc是通过DSC测定得到的温度为190℃以上的高熔点结晶熔融峰的熔融焓),(b)10%以下的雾度和( c)在140℃加热10分钟后,雾度变化为5%以下。
    • 15. 发明授权
    • Method of reconstructing a secret, shared secret reconstruction apparatus, and secret reconstruction system
    • 重建秘密,共享秘密重建装置和秘密重建系统的方法
    • US07421080B2
    • 2008-09-02
    • US10798578
    • 2004-03-12
    • Yasuko MatsumuraSatoshi NakagawaKohei Endo
    • Yasuko MatsumuraSatoshi NakagawaKohei Endo
    • H04L9/00
    • H04L9/085
    • Secret information is shared by a group of members by giving each member a first share of the information. To reconstruct the secret information, a subgroup consisting of some or all of the members generate second shares from their first shares, and distribute the second shares to the other members of the subgroup. Each member of the subgroup performs an operation on the second shares it receives and one second share it generated itself to obtain an intermediate result. The intermediate results are transmitted to one or more members of the subgroup, or to a central facility, where the original secret information is obtained from a further operation performed on the intermediate results. The original secret information can thereby be obtained without compromising the secrecy of the first shares, and without forcing the members to reveal their identities.
    • 秘密信息由一组成员共享,为每个成员提供第一份信息。 为了重建秘密信息,由一些或全部成员组成的子群体从其第一股份产生第二股份,并将第二股份分配给该子群体的其他成员。 子组的每个成员对其接收到的第二个共享进行一个操作,并且自己生成一个第二个共享以获得中间的结果。 中间结果被发送到子组的一个或多个成员,或传送到中央设备,其中从对中间结果执行的另一操作获得原始秘密信息。 从而可以获得原始的秘密信息而不损害第一股份的秘密,而不强迫成员揭示其身份。