结合独立发电商和环境保护的电源规划模型

给出了电力市场环境下的电源规划模型,充分考虑了两者对电源规划工作的影响.为了从根本上克服“组合爆炸”问题,结合电源规划具体工程实际,提出了一种实用且快速的电源规划算法,以电源投资费用等年值最小为目标函数,结合了相关技术约束(水火电平衡、电力平衡、电源投产/电厂开工时间)条件.通过对一个实际系统的测试,表明提出的模型和算法是可行、有效的.     

环境工程材料的研究现状及发展趋势

介绍了近几年环境工程材料领域所取得的进展。水污染控制材料中主要介绍了用于分离工艺的几种新型吸附材料、絮凝材料和过滤材料,用于生化处理工艺的微生物固定化多孔陶瓷材料,以及用于化学处理工艺的二氧化钛光催化材料;大气污染控制材料中主要介绍了用于机动车尾气净化的催化材料、室内空气污染治理的光催化材料以及脱硫用吸附及离子交换材料;环境修复材料中主要介绍了固沙植被材料。     

形态插值方法应用于图像重构

指出了基于数学形态学的形态插值方法是一项新的研究领域,提出了一种改进二值图像测地距离函数和形态中集函数的方法,并在此基础上建立了一种适用于灰值图像、彩色图像及多光谱图像的形态插值变换．应用插值变换于图像分割序列重构的实验结果表明：该方法可以成功地运用于对各种类型的图像进行有效地插值重构和图像形变．     

Generating Fuzzy Rule-based Systems from Examples Based on Robust Support Vector Machine

This paper firstly proposes a new support vector machine regression （SVR） with a robust loss function, and designs a gradient based algorithm for implementation of the SVR,then uses the SVR to extract fuzzy rules and designs fuzzy rule-based system. Simulations show that fuzzy rule-based system technique based on robust SVR achieves superior performance to the conventional fuzzy inference method, the proposed method provides satisfactory performance with excellent approximation and generalization property than the existing algorithm.     

Origin of Gymnocypris przewalskii and phylogenetic history of Gymnocypris eckloni (Teleostei: Cyprinidae

The origins and phylogenetic patterns were assessed for G. przewalskii and G. eckloni by analyzing the complete mtDNA cytochrome b gene sequence （1140bp）. Phylogenetic analyses further supported that there were three mtDNA lineages (A-C) identified in G. przewalskii and G. eckloni, demonstrating that outer rakers of the first gill have little significance in the phylogeny of the Gymnocypris fishes. The network established showed that G. eckloni of the Yellow River specific haplotype A1 was a founder and it radiated all haplotypes of G. przewalskii which suggested G. przewalskii might only originate from one of two maternals of G. eckloni from the Yellow River. Fs test and mismatch analysis showed at least two expansion events in the population of G. przewalskii about 0.2734 Ma and 0.0658 Ma, while G. eckloni from Qaidam Basin could have experienced severe bottleneck effect about 0.0693 Ma. The population expansion was detected in subclades A1 and A21 with the most recent common ancestor (TMRCA) about 0.2308±0.01 Ma and 0.1319±0.015 Ma, respectively, which were within the geological age range of “Gonghe Movement” event that caused the separation of Lake Qinghai from the upper Yellow River. These results suggested the effect of the fish diversification by rapid uplift of the Qinghai-Tibetan Plateau in the Late Pleistocene.     

一种测量电容的新方法

提出了一种测量电容的简单方法．该电路可以制成单层紧凑型仪表．     

线性规划问题的最优解

在标准型线性规划问题的最优单纯形表的基础上,得到规划问题的所有最优解的表达通式和从表上判定规划问题有唯一最优解还是有无穷多最优解的几个判定定理。可为用线性规划解决实际问题提供理论依据．     

板栗壳棕色素的吸附树脂法精制

采用大孔吸附树脂分别对以水和乙醇为溶剂制得的板栗壳棕色素Ⅰ和色素Ⅱ进行精制,确定了色素Ⅰ以Ｄ４０２０,色素Ⅱ以ＮＫＡ－９为吸附剂,并对精制效果作了评价。本文为吸附树脂在色素中的应用提供一定的科学依据。     

弹射式无人机航摄系统的研究

随着科学、信息技术的进步,政策积极引导以及市场需求的不断增加,低空无人机航摄系统突破了众多技术瓶颈,整个行业都得到了快速发展,满足了众多领域的实际应用需要。现针对弹射式低空无人机航摄系统的发展现状、特点、实施过程以及存在的若干问题进行探讨,以此来指导低空无人机航摄实践,更好地满足我国经济社会迅猛发展的航摄测绘需求。     

Expression, distribution and function of the focal adhesion kinase (pp125FAK) during murine ectoplacental cone outgrowthin vitro

Mouse embryo implantation is a complex process that includes trophoblast cells derived from ectoplacental cone (EPC) adhesion to and migration through the extracellular matrix (ECM) of uterine endometrium and invasion into the decidua. At the time of implantation, fibronectin (FN) is abundant in the decidua and is distributed pericellularly around each individual stromal cell, and its receptor (integrin α-5β-1) expression on trophoblast populations is up-regulated. The focal adhesion kinase, a 125 ku protein tyrosine kinase (pp125 FAK), is tyrosine phosphorylated upon integrin engagement with its ECM ligand, and its tyrosine phosphorylation sites then serve as the binding sites which couple it with cellular proteins that contain Src SH2 or SH3 domains. Through these linkages, pp125 FAK may integrate multiple signals triggered by integrins. The model of EPC culture %in vitro% was used to study the expression, distribution and function of pp125 FAK during EPC outgrowth on FN. Results indicated that, pp125 FAK primarily expressed and distributed in cellular focal adhesions of the front edge of trophoblast outgrowth from EPC, and was localized in the peripheral region of the individual migrating trophblast cell; antibody or antisense oligodeoxynucleotide to pp125 FAK inhibited EPC attachment and outgrowth, as well as trophoblast cells spreading and migration. This experiment demonstrated that pp125 FAK as an integrin-mediated signaling molecule was involved in EPC outgrowth %in vitro%, and played an important role during trophoblast cells interaction with FN.