七种番茄种质的性状观察

着重对 7种番茄种质的重要经济生物学性状进行了观察记载与评价 .这些性状包括番茄直立性、茎面光滑度、果实形状、果肉颜色、果皮颜色等 13个质量性状以及物候期、果实重量、可溶性固形物含量、含酸量和产量等性状 ,为进一步利用这些宝贵的种质资源提供了理论基础     

赤潮相关因子的卫星遥感探测与赤潮预报的可行性探讨

讨论遥感探测赤潮相关因子的技术方法以及现阶段遥感观测手段的不足之处,认为赤潮的监测和预报须依靠多层次的海洋观测系统和多学科的综合研究才能实现,其中,多层次的海洋观测手段是关键,建立有效的海洋综合观测系统是预报赤潮的必要条件（如正在建设中的珠江口、上海海洋立体观测示范技术系统）,利用已有的综合技术实现赤潮的预报是完全可能的。     

浅水分潮对海岸地下水波动影响初步研究

基于一维Boussinesq方程,在斜坡海岸边界条件中综合考虑了半日潮及其浅水分潮的作用,得到了方程的二阶摄动解,并结合现场实测资料,比较分析了浅水分潮对海岸地下水波动的影响。分析结果显示,考虑浅水分潮后,其摄动解较之仅考虑半日潮的同阶解与现场实测数据更为接近,而且解的阶数越高,解的精度越高。研究结果表明,浅水分潮对海岸地下水波动振幅的影响比较显著,也能较好地改善相位上的偏移。因此,在对海岸地下水波动研究时,应该考虑浅水分潮的作用。     

EISCAT observations of main ionization troughs in the high-latitude ionosphere

F-region electron density depletions associated with main ionization troughs in the high-latitude ionosphere are studied using EISCAT CP3 data of meridian scanning experiments. The troughs in our observations are found to appear mainly in dusk sector, extending from late afternoon to pre-midnight, with higher occurrence rate during equinox and winter. Simultaneous ion drift velocity inF-region shows that the main trough minimum is mostly located at the equator ward edge of the plasma convection flow, rather than in the region where the largest ion flow are observed. Foundation item: Supported by the National Natural Science Foundation of China (49674241) and the Research Fund for the Doctoral Program of Higher Education Biography: LIU Peng (1978-), male, Master candidate. Research direction: studying high-latitude ionosphere using EISCAT radar.     

A Realistic Look at Putnam's Argument Against Realism

Putnam's ``model-theoretic' argument against metaphysical realism presupposes that an ideal scientific theory is expressible in a first order language. The central aim of this paper is to show that Putnam's ``first orderization' of science, although unchallenged by numerous critics, makes his argument unsound even for adequate theories, never mind an ideal one. To this end, I will argue that quantitative theories, which dominate the natural sciences, can be adequately interpreted and evaluated only with the help of so-called theories of measurement whose epistemological and methodological purpose is to justify systematic assignments of quantitative values to objects in the world. And, in order to fulfill this purpose, theories of measurement must have an essentially higher order logical structure. As a result, Putnam's argument fails because much of science turns out to rest on essentially higher order theoretical assumptions about the world.     

木里齿突蟾的生活环境及习性初步观察

报道了木里齿突蟾的主要生活环境、生活习性、繁殖习性以及越冬初期的情况 可供研究此蟾的个体生态学 ,齿突蟾类的比较生物学 ,以及物种多样性、野生动物、自然环境等部门参考     

浅谈市政排水检查井病害的成因及防治

对市政排水检查井的病害原因从养护管理的角度进行了分析,阐述了如何在新建工程或养护维修工程中通过一系列的措施控制检查井施工质量、处置检查井病害,从而保证检查井的使用寿命。     

基于贝叶斯次优解的锂电池SOC初值追踪研究

在使用循环算法的剩余电量(state of charge,SOC)估算的理论研究中,通常都是设定已知的初始值,无法完全论证算法的各项性能指标.在研究剩余电量估算问题时,则重点针对不确定的初始赋值,使用一种贝叶斯次优解法——粒子滤波(PF),基于SOC动态观测模型,研究其收敛到真值的情况,并辅以MATLAB仿真实验.结果显示在非平台期PF可快速追踪初值,而在平台区由于自身算法的缺陷,无法追踪初值,应根据此区域的电压特性,更换为另一种次优解算法.论证了在解决锂电池初值追踪问题上,两种次优解算法的结合使用可以得到理想结果.     

“情感态度与价值观”实施情况观察报告

知识与技能目标是水，过程与方法目标是船，情感态度与价值观目标才是要到达的彼岸．通过观察教师情感态度与价值观目标的实施情况，发现教师对情感态度与价值观目标普遍重视度不高，教师思想上不够重视，并且设置的情感态度与价值观目标操作性不强．     

压密注浆在地基处理中的应用

随着建筑科技的进步,地基加固处理的方法不断更新,新技术新工艺的应用层出不穷。压密注浆工艺是通过注浆管在有压状态下将浆液注入土中,在注浆管周围形成浆泡和浆土结合体,并使土体得到挤压密实,对地基土起到综合加固效果。