全球公民社会话语的建构、反思及批判

自上世纪90年代起,全球公民社会的话语开始兴起。然而就何谓全球公民社会以及它的未来发展方向问题引来热议。在乐观派看来,全球公民社会不仅是复杂全球化历程中的必然现象,而且它将在参与全球治理体系以及制衡全球市场体系方面发挥着积极的作用。在怀疑派或批评家那里,全球公民社会则是一纯粹的＂乌托邦＂,或者是经过精心包装的词汇,实质是西方世界对非西方世界的新的殖民。     

切向光栅对的构成及特性分析

经过理论分析得出了与切向光栅对各种构成方式对应的莫尔条纹间距的定量关系式.设计制作了1组光栅,并进行了实际测量,结果表明所得关系式与实测结果符合得很好.这对在"位置细分"技术中开拓排布光电传感器所需空间、提高测量分辨率和测量精度十分有利.     

Evaluating Feasibility of Human Tissue Engineered Respiratory Epithelium Construct as a Potential Model for Tracheal Mucosal Reconstruction

The normal function of the airway epithelium is vital for the host’s well-being. Conditions that might compromise the structure and functionality of the airway epithelium include congenital tracheal anomalies, infection, trauma and post-intubation injuries. Recently, the onset of COVID-19 and its complications in managing respiratory failure further intensified the need for tracheal tissue replacement. Thus far, plenty of naturally derived, synthetic or allogeneic materials have been studied for their applicability in tracheal tissue replacement. However, a reliable tracheal replacement material is missing. Therefore, this study used a tissue engineering approach for constructing tracheal tissue. Human respiratory epithelial cells (RECs) were isolated from nasal turbinate, and the cells were incorporated into a calcium chloride-polymerized human blood plasma to form a human tissue respiratory epithelial construct (HTREC). The quality of HTREC in vitro, focusing on the cellular proliferation, differentiation and distribution of the RECs, was examined using histological, gene expression and immunocytochemical analysis. Histological analysis showed a homogenous distribution of RECs within the HTREC, with increased proliferation of the residing RECs within 4 days of investigation. Gene expression analysis revealed a significant increase (p < 0.05) in gene expression level of proliferative and respiratory epithelial-specific markers Ki67 and MUC5B, respectively, within 4 days of investigation. Immunohistochemical analysis also confirmed the expression of Ki67 and MUC5AC markers in residing RECs within the HTREC. The findings show that calcium chloride-polymerized human blood plasma is a suitable material, which supports viability, proliferation and mucin secreting phenotype of RECs, and this suggests that HTREC can be a potential candidate for respiratory epithelial tissue reconstruction.     

一种用于工作流柔性建模的新方法

提出了一种工作流柔性建模的方法,主要目的是为了在实现工作流的柔性建模时无需引用非标准的工作流控制结构,从而保证建模语言的正确性．该方法首先利用标准的建模结构来组成活动节点,然后利用活动节点及过程约束建模,按照过程约束分步的组装和运行这些活动节点,直到整个工作流运行结束。     

我军革命化现代化正规化建设的历史经验探析

我军在86年辉煌历程中积累了丰富而宝贵的革命化现代化正规化建设的历史经验。其主要有：坚持党的绝对领导,统一思想政治工作;坚持现代化为中心,促进部队全面建设;坚持依法从严治军,贯彻落实务令法规;注重军队质量建设,走中国式精兵之路。探究这些历史经验,对于促进新形势下我军战斗力生成模式的转变,提升我军信息化作战能力,建设一支正规的信息化军队具有极其重要的意义。     

论井冈山道路与中国特色社会主义道路的共同特征

井冈山道路,是毛泽东、朱德为代表的中国共产党人,为革命开辟的适合中国国情和时代条件的胜利之路;中国特色社会主义道路,是党的三代领导集体在新的历史条件下,对马列主义中国化作出的伟大贡献。两条道路的共同特征是善于创新,敢闻新路。其最大的融合点是将马克思主义基本原理与中国的具体实践相结合,坚定不移地走自己的发展之路。     

钢纤维和钢丝网混凝土的研究及工程应用

根据线弹性断裂力学原理 ,纤维的作用相当于在裂纹面上加上了闭合力 ,当这种闭合力在裂尖附近时 ,其作用在于极大地降低了裂纹的应力强度因子 ,这便是纤维增强混凝土抗裂性能极大提高的原因。钢丝网混凝土是钢纤维混凝土在工程中应用的纵深发展。由长细钢丝编织成方格网增强混凝土 ,可以在方向性上弥补短钢纤维乱向掺与的不足。结合连续梁的修补说明钢纤维和钢丝网混凝土的特性     

论中国全面建设小康社会的深刻内涵

中国实现全面建设小康社会的目标拥有许多有利因素。维持稳定的社会秩序是全面建设小康社会的前提条件，教育和人才是重要基础，建设的关键在农村和西部，大力发展经济是首要任务，基本途径是促使三大文明协调发展，加强和改进党的建设是根本保障。全面建设小康社会需要继续贯彻执行韬光养晦的外交战略，建设一支战无不胜的人民武装是坚强后盾。     

Metrically generated theories

Many examples are known of natural functors describing the transition from categories of generalized metric spaces to the ``metrizable" objects in some given topological construct . If preserves initial morphisms and if is initially dense in , then we say that is -metrically generated. Our main theorem proves that is -metrically generated if and only if can be isomorphically described as a concretely coreflective subconstruct of a model category with objects sets structured by collections of generalized metrics in and natural morphisms. This theorem allows for a unifying treatment of many well-known and varied theories. Moreover, via suitable comparison functors, the various relationships between these theories are studied.

     

基于(17,9)平方剩余码的广义LDPC码构造及性能研究

低密度奇偶校验(low-density parity check, LDPC)码的校验节点通常采用单奇偶校验(single parity check, SPC)码,然而当采用一种具有更强纠错能力分量码替换LDPC码中的SPC码时可以构造出一种性能更好的广义LDPC(generalized LDPC, GLDPC)码。鉴于此,采用一个(17,9)平方剩余(quadratic residue, QR)码作为分量码来替换LDPC中的SPC码构造出了一种基于QR码的GLDPC码。通过研究GLDPC码和QR码的构造以及GLDPC码的译码算法,提出了一种基于(17,9) QR码的GLDPC码构造方法,研究了该GLDPC码的性能,并对该GLDPC码与传统的LDPC码、同码率不同码长的GLDPC码以及同码长不同码率的GLDPC码进行了性能仿真。仿真结果表明,基于(17,9)QR码的GLDPC码相比同码率下的LDPC码,在错误比特率和译码收敛速度上都取得了更优异的表现。