不同时性

The common features of imprinted genes are, clustering of multiple imprinted genes in one chromosomal region (around 80%), conservation of imprinting among eutherian mammals, asynchrony of DNA replication of imprinted genes, temporal and spatial regulation of expression of imprinted genes, coding for untranslated RNAs as well as proteins, antisense transcripts may regulate expression of imprinted genes. Once established, the imprinting pattern is stably transmitted through cell division but reset in germ cells of the fetal gonads.

约80%的印记基因呈串出现在染色体上；在哺乳动物品种之间，印记基因具有较高的保守性；印记基因的复制通常表现为不同时性；一些印记基因具有印记遗传的时空性；少数印记基因只转录为mRNA而不翻译成蛋白质；印记基因的反意链通常表达，表达产生具有调节印记基因的作用。

If two parties want to sign a contract C over a communication network, they must "simultaneously" exchange their commitments to C Since simultaneous exchange is usually impossible in practice, protocols are needed to approximate simultaneity by exchange partial commitments in a piece by piece manner The party of secondly sending commitments may have a slight advantage; a "fair" protocol must keep this advantage within acceptable limits The protocol for signing a contract is improved based on the research result of secure multiparty computation In this protocol, the parties obliviously transfer the signed bit and the committed bit; the other parties can prove the validity of this bit based on the confirming sub protocol, but he cant gain more information about the whole signature by accumulating the signed bit or the committed bit After the parties exchange the whole signed information, they declare the commitment about the signature respectively, and gain the whole signature of the other party At this moment, the party doesnt care about the advance quit of the other party, because he has gained the whole signed information Finally, it is proved that this protocol is quit fairness

在网络环境中解决合同签订问题需要保证信息交换的同时性，以前提出的协议都会给第 2个发送者部分计算特权，利用不经意传输协议则可以解决这个问题在协议执行过程中，参与者将合同的签名位以及他对签名位的承诺不经意传输给对方，对方可以利用验证子协议证明该位的有效性，但是他却不能通过位交换次数的增加获取更多的完整签名的信息；在完成签名位的交换之后，参与者分别宣布承诺，并得到对方对合同的完整签名；在宣布承诺时，协议参与者已经获得全部的签名内容，要么是签名位，要么是对方对该位的承诺，因此参与者并不需要担心对方提前终止协议在文章的最后利用多方安全计算的结论证明了该协议满足终止公平性1 引言两个参与者A和B想要通过网络协商签订合同C 为了保证公平性，参与者必须同时交换自己对合同的签名，然而在实际的网络环境中，想要完全同时地交换对合同的签名是不可能的，他们必须将签名分成若干块依次地执行，以保证大致的同时性但是这种方法依然存在着问题

In the case of electrostatic business card printing and membership card preparation of digital business card printing and membership card-making machine, photocopying machines or desktop business card printing and membership card making machine is the most common, and on this kind of business card printing and membership card equipment requires a paper in temperature and humidity of the environment and good dimensional stability, low twice the total mass, and low wrinkle, also requires appropriate crocking, surface conductivity, adequate stiffness and business card printing and membership card number in the process of making paper or dust.

如诳骗静电制卡和会员卡制息道理的数字化制卡和会员卡制息机、复印机或台式制卡和会员卡制息机最为个别，差这类制卡和会员卡制息摆设不离请求纸张在温干度改变的境况下，有精良的尺寸安不退性、矮挠曲性、及矮起皱性，同时还请求有不合的耐磨擦性、暗地导电性、不足的挺度、而且在制卡和会员卡制息历程洋众失纸毛或尘埃。

Three kinds of BCRC No.51534, 10322 and 10675 would be selected and acted as an experimental sample of Escherichia coli. Results shows that Escherichia coli of No.51534 will appear better performance because the maximum of open circuit voltage, closed current and power density are 1.01V, 22mA and 1342mW/m2, respectively. Concerning the effect of culture time with respect to different phase type on the electricity performance of MFCs, the time points on the intersection between lag phase and logarithmic phase, the middle of point of stationary phase for growth curve of Escherichia coli would appear a good performance of MFCs. In addition, the BCRC No. 51534 Escherichia coli possessing a better performance of MFCs than others would be suggested and applied to further studying. Comparison with the performance of MFCs with respect to electron mediator under different mole number, result shows that electron mediator of methylene blue with 4.63mM would appear a better electricity performance of MFCs than others. Concerning the different material of proton exchange membrane with PTFE-Nafion, Nafion 211, 212 and 117 with respect to the performance of MFCs, result shows that the Nafion 117 applied in MFCs will have a better performance of MFCs than other cases. Finally, the effect of molar concentration on the performance of MFCs would be expected at the studied cases of 0.4M, 0.2M, 0.1M and 0.05M respectively for cathode oxidant, result shows that a good performance of MFCs will happen at the condition of 0.2M. Those observations will be useful to improvement of MFCs in the further study.

於上述电池系统条件下，进行大肠杆菌生长曲线、电子传递介质、质子交换膜、电极与阴极氧化剂对电池电性效能分析；选择编号10322、10675与51534之大肠杆菌为实验菌株，依定量培养之生长曲线取出代表不同时生长特性时期的培养时间，利用亚甲基蓝作为电子传递介质进行实验分析从所测得的电量进行分析，以编号51534之大肠杆菌的微生物燃料电池有最大的开路电压为1.01V及最大闭路电流为22mA；当极化曲线中电压为0.47V、电流为11.4 mA时有最大的功率密度为1342 mW/m2；加以负载有平均工作功率密度294 mW/m2；从生长曲线与电性效能来分析，得知生长曲线的迟滞期与对数期的转变点与静止期的中间点有最佳电性效能表现；对於加入不同莫耳数之电子传递介质methylene blue、neutral red与thionine之电池效能表现，则以加入4.63mM methylene blue电子传递介质的电池有较佳平均功率密度230 mW/m2；另对於质子交换膜PTFE-Nafion、Nafion 211、Nafion 212与Nafion 117之电池效能表现，以Nafion 117质子交换膜的电池有较佳平均功率密度340 mW/m2；对於分析加入不同莫耳数浓度0.4M、0.2M、0.1M与0.05M的阴极氧化剂之电池效能，则以0.2M的阴极氧化剂的电池可得到较佳平均功率密度429 mW/m2。

The results show that the proposed scheme can not only resist conspiracy attacks and forgery attacks essentially, but also provide anonymity and traceability simultaneously. In addition, itcan realize the unknowability ofgroup's secretby constructing a secure distributed key generation protoco.l As a resul,t the proposed scheme is more secure than the two schemes.

结果表明：该方案不仅能够从根本上抵抗合谋攻击和伪造签名攻击，而且在保证匿名性的前提下，能够真正实现签名成员身份的可追查性，同时通过构造安全的分布式密钥生成协议保证群私钥的不可知性，因此比现有方案具有更高的安全性。

Security analysis shows that this new scheme can not only resist the above-mentioned conspiracy attacks and forgery attacks essentially, but also provide anonymity and traceability simultaneously. Moreover, by constructing a secure distributed key generation protocol, the proposal realizes the unknowability of the group\'s secret.

分析表明：新方案能够根本抵抗合谋攻击和上述伪造签名攻击；在保证匿名性的同时可以真正实现签名成员身份的可追查性；通过引入可验证秘密共享并设计安全的分布式****生成协议，实现了****影子的可验证性以及群共享秘密的不可知性，系统安全性大大提高。

Objective: To study the characteristic changes of multifocal VEP in strabismic amblyopes,anisometropic amblyopes and inisometropic amblyopes, in order to evaluate the mechanism of amblyopes and provide a new methods for their diagnosis.

目的：研究儿童弱视(包括内斜视性弱视、屈光参差性弱视、屈光不正性弱视)的多焦视觉诱发电位特征，探讨儿童弱视的发病机制，同时为临床诊断及临床监测治疗提供一种新的检测方法。

These male sterile transgenic plants with TA29 Barnase gene have the same horticultural characters which can be also inherited steadily by plants in next generation as non transgenic ones. But their flowers bear fully catagenetic stamen lacking pollens, normal fragrant nectaries and strong pistils able to receive pollens from other plants or different cultivars and set seeds. At the meantime, the sterility i...

带有TA 2 9 Barnase基因的雄性不育植株的园艺学性状与未转化植株相同，并且其性状在后代中稳定不变；不育植株的花朵表现雄蕊完全退化，但蜜腺和雌蕊健全，能接受外来花粉，杂交结实率较高；同时，雄性不育植株的不育性在后代中出现分离，不育株率占 12 。5%～ 85.7%；此外，不育性状具有镶嵌性

In order to further understand the organization and performance of the product extruded from beryllium bronze,the nonuniformity of ingot casting organization extruded from beryllium bronze,the quenching macrocrystalline ring organization and layer structure of extrusion bars,the nonuniformity in mechanics,and extrusion effects were analyzed.

为了进一步了解铍青铜正向挤压制品的组织和性能，分析了铍青铜挤压铸锭组织的不均匀性、挤压棒材淬火后的粗晶环组织、以及挤压棒材的层状组织；同时对挤压棒材力学性能的不均匀性和挤压效应进行了分析。

Aimed at the arising problems such as the cross-incompatibility and hybrid's sterility during distant hybridization of fruit trees, effects of different treatments on cross-compatibility of distant hybridization in stone fruits were studied based on the former studies, then physiological and biochemical changes during hybridization between plum and apricot were primarily discussed, and rescue and culture system of hybrids' embryos were also conducted, further the genetic variation and principle between the hybrids and their parents were analyzed and methods of identification of hybrids were established.

针对果树远缘杂交过程中存在的杂交不亲和性及杂种不育性等问题，在前人研究的基础上，研究了不同处理对核果类果树远缘杂交亲和性的效应，并探讨了李、杏属间杂交过程中发生的生理生化变化以及花粉与柱头的互作，建立了李、杏属间远缘杂种的胚培养技术体系，建立了杂种鉴定检测方法，并分析了杂种后代与其父母本之间的遗传变异及规律，最终将一批远缘杂交新种质定植于大田，同时对自然界存在的杏梅种质资源进行了RAPD分析。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。