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基于投影寻踪模拟退火的多传感信息融合技术
Multi-Sensor Information Fusion Technology Based on Projection Pursuit Simulated Annealing  [PDF]
张友好, 郑艳芳
Journal of Sensor Technology and Application (JSTA) , 2020, DOI: 10.12677/JSTA.2020.82002
Abstract: 本文吸取加权平均法、概率统计法等算法的优点，设计了基于投影寻踪模拟退火法的多传感器信息融合算法。设计创新点在于对投影权值调整过程中加入概率窗口约束及聚类约束，使系统的计算复杂度减少41.6%，得出的结果符合峰值回归判断。本设计对于解决系统的多传感器信息融合有了新的改进，对于实时性和适用范围均有了一定的提升。
Based on the advantages of weighted average method and probability statistics method, a multi-sensor information fusion algorithm based on projection pursuit simulated annealing method is designed in this paper. The innovation of the design lies in the addition of probability window constraint and clustering constraint in the process of projection weight adjustment to reduce the computational complexity of the system by 41.6%, and the results obtained are in line with the peak regression judgment. This design has a new improvement to solve the multi-sensor information fusion of the system, and has a certain improvement to the real-time and applicable range.
污染与捕获对种群系统的影响分析
The Effect of Pollution and Capture on Biotic Population System  [PDF]
张丽娟, 刘艳艳, 张艳芳
Operations Research and Fuzziology (ORF) , 2013, DOI: 10.12677/ORF.2013.33004
Abstract:
一些生物一方面受环境污染一方面又要满足捕获的需要，从而使得环境污染中种群捕获问题备受关注。本文研究了一类污染环境中种群生存的动力学模型，基于已有结果，考虑内禀增长率为非线性函数和种群满足捕获需求的情形，加入种群变量对生物体内毒素和环境毒素浓度的影响从而建立新模型，并得到种群一致持续生存及灭绝的判别条件。
Some biological aspects are not only affected by environmental pollution, but also have to meet the need of human being capture. Thus the biotic population problem in the environmental pollution has been taken so much attention. This paper has studied the dynamic model of a class of population living in a pol- luted environment. Based on the existing results, we have established new model with the effect of population variables on organisms and environmental toxins concentration, and with the nonlinear intrinsic growth rate and the population trapping. We have also obtained the sufficient and necessary conditions for the uniform persistence and extinction of population.
非传统科学课程教学模式对学生科学成绩的影响——近二十年实验研究的元分析
The Effects of Non-Traditional ScienceInstruction on Students’ Science Achievement—A Meta-Analysis of Experimental Studies from the Past 20 Years  [PDF]
张宗芳, 董艳, 杨洋
Creative Education Studies (CES) , 2021, DOI: 10.12677/CES.2021.96311
Abstract: 非传统的科学课程教学模式，包括5E教学模式、HPS教学模式、基于项目的学习教学模式和基于问题的学习教学模式，对我国学生科学成绩的影响究竟是怎样的？这一问题值得深入探究。本研究对过去二十年科学课程教学模式效果的实验研究进行了元分析(符合筛选标准的研究45篇，包含4743名被试)，研究发现：1) 纳入研究合并效应量ES = 0.48，表明这四种非传统科学课程教学模式对学生的科学成绩产生了中等程度的正向影响；2) 在学段学科方面，非传统科学课程教学模式对高中生科学成绩的影响大于其对初中生的影响；不同学科的教学效果差异小；3) 研究主要集中在高中学段以及生物和化学学科。基于研究发现，我们提出以下建议：1) 增加教学模式有效性的实证研究；2) 加强对小学科学和物理工程学科的研究投入；3) 推进合理的教学模式在科学课程教学中的应用；4) 倡导教育领域的文献合成研究，促进基于证据的政策制定。
Different from traditional science instruction, how did 5E, HPS, project-based learning and prob-lem-based learning affect Chinese students’ science achievement was worth thorough examination. The current study applied meta-analysis to synthesize the effect size of aforementioned instruction modes on students’ science achievement from experimental studies in the past 20 years in China. We found: 1) the overall effect size of the four instruction modes was 0.48, indicating the above instruction modes had medium and positive influence on students’ science achievement; 2) the effects of these instruction modes were stronger for high school students compared with middle school students, and the difference of effects among science subjects was tiny; 3) studies focused on high school students and science subjects in terms of chemistry and biology. Based on the findings, suggestions included: 1) increase the number of empirical studies to verify the effects of the four instruction modes; 2) increase the studies towards physics and engineering; 3) promote the implication of such instruction modes in science education; and 4) advocate systematic reviews in educational policy making.
无限维系统正迹类算子上保持Bregman f-散度映射
Maps Preserving Bregman f-Divergence on the Set of Positive Definite Trace Operators of Infinite Dimensional Systems  [PDF]
李田, 张艳芳, 贺衎
Advances in Applied Mathematics (AAM) , 2022, DOI: 10.12677/AAM.2022.113107
Abstract: 设H为无限维的可分Hilbert空间，令PTr(H)表示H上所有的正定的迹类算子组成的集合。该文主要研究了无限维的可分Hilbert空间H上正迹类算子的保持问题，给出了PTr(H)上保持满足某些条件的可微凸函数对应的Bregman f-散度和Umegaki相对熵(函数x？xlogx对应的Bregman散度)的双射的完全刻画。
Let H be an infinite separable Hilbert space and PTr(H) represent the set of all positive trace operators on H. In this paper, we characterize the bijective maps on PTr(H) preserving Bregman f-divergence where f is a differentiable convex function satisfying certain conditions and Umegaki relative entropy (Bregman divergence corresponding to function x？xlogx); then we show that these maps are unitary transformations or anti-unitary transformations.
对地质遗迹类自然保护区法律保护问题的研究
张艳芳
科技进步与对策 , 2005,
Abstract: 地质遗迹是不可再生的地质自然遗产,它对人类有着极其重要的意义。阐述了建立地质遗迹类自然保护区的重要意义以及目前地质遗迹类自然保护区发展中存在的立法不足;提出了相关的立法建议。地质遗迹类自然保护区地质地质遗迹自然遗产立法
法学视阈下公司治理与企业社会责任的分化融合
张艳芳
湖南工业大学学报(社会科学版) , 2012,
Abstract: 现代企业出现是“公司治理”与“企业社会责任”共同的源头。尽管公司治理与企业社会责任后续发展过程中出现了一定程度的分化，公司治理更关注公司内部的制度安排，体现效率的价值追求；企业社会责任更强调外部社会的整体利益，体现公平的价值追求。然而，两者却具有共同的理论内核——责任。这种做好份内之事的“主观责任”成为公司治理与企业社会责任融合的基础。未来我国立法应在“责任”内核指引下，借鉴各国“共同治理”的成功经验，促进公司治理与企业社会责任深度融合。
神秘顾客法：突破libqual+?本土化制约因素的对策
张艳芳
图书情报工作 , 2010,
Abstract: ？首先分析libqual+？本土化的制约因素：模型本身的局限制约用户的准确表达；本土国情的局限制约libqual+？的实施；其次从libqual+？构建的统计学原理出发,提出libqual+？本土化的实现途径是神秘顾客法，并对其可行性进行分析；最后以实例说明本土libqual+？的调查过程。
6长圈带2条悬边的8阶连通图的图设计
The Graph Designs of Connected Graphs with 8 Vertices Obtained by Adding Two Pendant Edges from a Cycle of Length 6
张艳芳
- , 2012,
Abstract: 构造了所需的带洞图设计, 再结合一些小阶数的图设计的存在性, 得到了关于图Gi (i=1,2,3,4)的图设计(v, Gi ,1)-GD的存在谱, 其中图Gi (i=1,2,3,4)是给6长圈增加2条悬挂边所得的8阶连通图, 且G1, G2, G3, G4互不同构.
The needed holey graph designs are constructed. The existence spectrum of (v, Gi ,1)-GD is obtained by combining with the existence of some graph designs of small orders, i=1,2,3,4, where G1, G2, G3, G4 are the connected graphs of order 8 obtained by adding two pendant edges from a cycle of length 6 and G1, G2, G3, G4 are not isomorphic each other
血管紧张素Ⅱ1型受体自身抗体与子痫前期
Association between Autoantibodies against Angiotension Ⅱ Type 1 Receptor and Pre-Eclampsia (Review)  [PDF]
马桂伶, 李艳芳, 张麟
Advances in Clinical Medicine (ACM) , 2013, DOI: 10.12677/ACM.2013.31001
Abstract:

子痫前期以高血压、蛋白尿为特征，并伴有全身多脏器的损害。其发病率为3%~5%，是母婴发病率及死亡率较高的主要原因。重症患者只有及时终止妊娠才可阻止孕妇和胎儿情况的进一步恶化。目前子痫前期的发病机制尚未研究清楚。近来，多项研究证实子痫前期孕妇血清中存在抗血管紧张素Ⅱ1型受体自身抗体，通过专一识别细胞外第二环功能表位肽段发挥作用。本文旨在综述这些最新进展。

Pre-eclampsia is a serious hypertensive disorder of pregnancy that affects 3% - 5% of pregnancies, and remains the leading cause of maternal and neonatal mortalities and morbidities in the world. It is a multisystemic disease with the common features of hypertension and proteinuria. In serious cases, termination of pregnancy is the only available option to prevent further deterioration of the fetus and mother. To date, the factors triggering, and the underlying mechanisms, responsible for the pathogenesis of pre-eclampsia remain unknown. Recently, numerous studies have shown that pre-eclamptic women possess autoantibody against angiotensin Ⅱ type 1 receptor, which bind to and activate the receptor provoking biological responses relevant to the pathogenesis of pre-eclampsia. The current paper is to review the most recent development.



陕西省能源消费结构、产业结构演变对碳排放强度的冲击影响分析
朱妮,张艳芳
干旱区地理 , 2015,
Abstract: 基于陕西省1989-2011年能源消费等统计数据,分析能源消费结构、产业结构的演变特征,建立陕西省能源消费结构-产业结构-碳排放强度系统的VAR模型,对该系统的长期和短期动态关系进行实证分析。结果表明:陕西省的发展模式,是能源消费结构长期以高碳能源为主和产业结构长期以高碳产业为主导。能源消费结构与产业结构的变化对陕西省碳排放强度的减小作用初期微弱;从中长期来,两个结构多元化提高的负效应对碳排放强度的增加有长期持久的抑制作用,且能源消费结构演进对碳排放强度的冲击效果始终大于产业结构变化的冲击效果。优化产业结构和调整能源消费结构尤其是提高低碳产业与低碳能源比重是驱动陕西省碳排放强度下降的有效措施。
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