异时性

The main factors affecting the soil-structure interface behaviors were found experimentally and theoretically, including: 1 the thickness of the interface that is five to six times the average grain size of the soil; 2 the aeolotropy of interface, which is responsible for anisotropic response of the stress-strain response of the interface; 3 two physical states, including crashing and compression of the soil near the structure surface, which govern the stress-strain response of the interface strongly; 4 two shear deformation components due to sliding and constraint of the structure surface relative to the soil respectively, which forms the deformation of the interface; 5 the volumetric strain due to dilatancy, which is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. 4. A unified constitutive model of the interface, based on new elasto-plasticity damage theory, was developed. It was confirmed to be effective for the conditions considering monotonic and cyclic shearing, coupling effect of shear and volumetric strains, evolution of physical state, micro-structure aeolotropy of the soil and the resulting aeolotropy of the interface as well as the three normal boundary conditions stated above. 5. 2D and 3D finite element formulations of the present model were derived and incorporated into the FEM codes. They were applied to the evaluation of practical engineering problems with different typical interfaces between soil and structure. The new model was shown to be reasonable and effective.

确定了粗粒土与结构接触面厚度约为5～6倍的平均粒径，首次揭示了接触面的细观结构异向性以及由此所引起的宏观剪切异向性，发现了在单调和往返剪切荷载作用下土颗粒破碎和剪切压密两种物态变化机制共同支配着接触面力学性质的变化，通过细观分析证实了接触面的变形可分解为一般同时发生的土与结构交界面上的滑移变形以及结构面位移约束范围之内土体本身的剪切变形两部分，观测到接触面受剪时表现出明显的相对法向位移，并可分解为可逆性和不可逆性两个分量；(4)建立了第一个能够统一地描述单调与往返剪切特性、剪应变与体应变耦合特性、细观结构和宏观剪切异向性以及土颗粒破碎等物态变化特性的土与结构接触面弹塑性损伤本构数学模型，并采用多种法向边界条件复杂加载路径的试验成果验证了新模型的合理性和有效性；(5)提出了新模型的二、三维有限元格式并结合实际边值问题进行了应用计算分析，比较了不同接触面本构模型对计算结果的影响，证实了新模型及其有限元格式不仅能够合理地描述土与结构接触面的主要力学特性，还能够较好地反映土体与结构物在接触面处的滑移、脱开等不连续现象。

Results Among 3 cases of repetitive cancer,2 cases were homocheonou double cancer of ascending colon cancer and rectum cancer or of right colic flexure cancer and descending colon cancer,1 case was heterochronic triple cancer of stomach cancer、lung cancer and transverse colon cancer.

结果 3例重复癌患者，有2例同时性双重癌，分别患升结肠癌及直肠癌和结肠肝曲癌及降结肠癌，1例异时性三重癌，患有胃癌、肺癌、横结肠癌。

Based on a review of the history of seismic stratigraphy, sequence stratigrapy, and seismic sedimentology, this paper discussed the status and future trend of the seismic sedimentology, and pointed out that 90° phase transformation and frequency division interpretation are just the two technical means rather than key techniques for seismic sedimentological studies.

结合地震地层学、层序地层学和地震沉积学的发展历程对地震沉积学的现状和趋势进行了探讨，认为90°相位转换和分频解释仅仅是地震沉积学研究的技术手段，而不是其关键技术；对于地震同相轴的穿时性问题，也仅存在于3级或4级层中，并且这种穿时性与"沉积物体分配空间"和"相异作用"有关。

In order to achieve load balance in task scheduling under the grid environment, in view of the resources' autonomy, isomerism and distribution under this circumstance, a model of resources real-time prediction was designed based on improved GM (1, 1) prediction method, which could get satisfied load balance with smaller expenditure.

为了达到网格环境下任务调度时的负载平衡，针对此环境下的资源的自治性、异构性和分布性等特性，利用改进的灰预测模型GM(1，1)预测方法，设计了资源实时预测模型，可在较小的开销下取得满意的负载平衡。

The child in question had developed eczema limited to the face at around one year of age. He had been breast-fed at birth, was switched to milk-based formula at four months, and started on solid foods at five months without problems. At the time, no food reactions or worsening of the atopic dermatitis due to food exposure was seen. At the age of three, his parents, who had read about a possible link between eczema and food allergy, took him to a naturopath, who used electrodermal skin testing to look for possible hypersensitivity.

有问题的儿童，大约一岁时发生局限於脸部的湿疹，出生后就接受哺乳，四个月后转为牛奶为主的配方，并在五个月后没有问题的情况下，开始食用固体食物；在这个时候，没有发生食物引起的反应以及因为食物而恶化的异位性皮肤炎；在三岁时，他的父母偶然间得知有关湿疹与食物过敏之间可能的关连，因而带这位男童接受自然疗法医师的电表皮皮肤试验，寻求可能的过敏反应。

To examine the influence of systemic factors on aged progenitor cells from these tissues, we established parabiotic pairings (that is, a shared circulatory system) between young and old mice, exposing old mice to factors present in young serum. Notably, heterochronic parabiosis restored the activation of Notch signalling as well as the proliferation and regenerative capacity of aged satellite cells.

为了查明系统因子对来自这些组织的衰老祖细胞的影响，我们在幼鼠和老鼠之间建立了共生态配对试验（即：一种共享的循环系统），给老鼠输入含有年轻因子的血浆，奇怪的是，异时性共生态细胞Notch信号重新激活，同时恢复了衰老干细胞增生和再生能力。

It becomes more difficult to manage, integrate and share the control system real-time data when we set up the industrial real-time database because of complicated affair between every department and isomeric character of the system. A three-level-structure model and the method to establish database is provided based on CORBA criterion with its character of being regardless of programming languages, hardware platform and network protocol . A universal real-time database faces multi-system is also set up by learning the distributed criterion, it can realize the request broker , and the application software can visit the database pellucidly ; Thus the power station simulation model can be linked with the control system such as infi90 , ovation and be made use of the control object , a closed simulation and control experiment system is set up. Further more we can build an integrate automatic experiment platform from the simulation object of power plant to the process control and the to SIS. Li Ming(Control Theory and Control Engineering)Directed by associate prof. Lin Yongjun

在创建工控领域实时数据库时，企业各部门间的复杂事务及内部异构性给实时数据的管理、集成和共享带来了一定的困难，根据CORBA规范具有语言无关性、平台无关性和网络协议无关性的特点提出基于分布式计算规范CORBA的三层体系结构模型及建立与维护实时数据库的方法和途径；通过CORBA规范建立面向多个分散控制系统的通用实时数据库，实现数据访问代理，使应用软件可以透明地对实时数据库进行访问、存取、管理；将Infi90、Ovation分散控制系统与火电厂仿真机模型进行有效的互连，以全物理过程仿真数学模型为对象，构建了闭环控制仿真实验研究系统，实现数据的高效连通及管理；进而通过基于CORBA的实时数据库构建一个从火电厂仿真机对象到过程控制设备再到SIS系统的综合自动化试验平台。

Based on the results of this report and the results of literature reports on the preferred conformation of enantiomeric 3-substituted-1, 4-benzodiazepines, a nucleophilically solvated C3 carbonium ion intermediate resulting from either a P or a M conformation is proposed to be an intermediate.

基於本文所报导的结果及文献所记述之对映异构性在C3位有取代基时的1，4-苯并二氮类的倾向构象，设想提出所观察之现象是由正或负构象所致的一个亲核性经溶剂化的C3阳碳离子为中间体。

The whole-mount in situ hybridization was used to detect the distribution of lin-28 and other three heterochronic genes in T. spiralis.

因此，我们利用原位杂交技术研究了lin-28及与其相关的3个异时性基因在旋毛虫中的分布情况。

Heterochronic genes control the temporal and spatial pattern of entire development process and specify the cell fate to ensure accurate position of the various organs and developmental time.

异时性基因控制着整个发育过程的时间性和空间性，确定细胞的命运，从而保证各种器官的准确定位和适时发育。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。