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41.
培训作为人力资源开发的重要组成部分,是一个组织拥有持续竞争力的源泉。组织的发展除了要积极引进人才外,还可以通过教育与培训达到提高人才素质,实现发展目标的目的。地勘行业20世纪90年代曾经历发展低谷,导致地质人才大量转移和流失,造成了目前普遍存在专业技术队伍年龄结构的"断层"。针对这一问题,以山东省物化探勘查院为例,针对地勘单位如何从自身实际出发,依托全面、有效的职工培训来盘活现有人力资源、打造人才梯队,实现可持续发展的问题,提出相应对策。  相似文献   
42.
对流层大气作为电波传播的主要媒介,其大气剖面参数直接影响无线电系统的作用距离和导航、定位精度,因此,研究大气剖面的微波遥感技术,尤其是大气反常结构,对分析评估无线电信息系统在复杂大气环境条件下工作性能和提供电波折射修正精度等具有重要的应用价值。中国东南沿海地区一直是研究的热点区域,本文选取青岛、射阳、厦门、海口4个站的气象探空仪观测数据,统计了这些地区大气波导的平均高度和厚度,对采用地基多通道微波辐射计的天顶和扫角亮温遥感其参数的算法进行了初步探索,提出了改进的组合神经网络算法来判别并遥感大气波导。同时,使用多年的探空数据对该算法进行了仿真验证,并用青岛气象站的实测数据验证了该算法的精度。结果表明该算法可用于遥感大气反常结构,并且与以往的算法相比更加实用、有效,可为雷达、通信、导航等系统设备提供环境信息保障。  相似文献   
43.
《The Journal of geography》2012,111(3):103-111
Abstract

Action research is defined as systematic classroom-based inquiry to solve teacher-perceived problems. It has been a component of education, particularly professional staff development, for the past century under several names although geography educators in the United States have rarely used it for this, or any other, purpose. This paper reviews the literature on action research in order to argue for its use in geography education. A preliminary exploration of action research-based professional staff development is described. The results of the project indicate that action research is potentially useful as a way to guide teachers to reflect on their practice. It is argued that geography educators should include it in their repertoire of reform techniques.  相似文献   
44.
《The Journal of geography》2012,111(3):427-433
Abstract

Research presented in this paper addresses two fundamental questions: how effective have state geographic alliance summer geography institutes (ASGIs) been in changing the classroom teaching behaviors of participants, and to what extent do the institutes reflect characteristics of effective inservice training? Both questions are grounded in Shulman's concept of pedagogical content knowledge—the notion that effective teaching requires knowledge of how specific ideas and procedures in a particular content domain can best be taught. On-site evaluations and four follow-up evaluations provided data regarding the strengths and weaknesses of the institutes as well as evidence regarding the institutes' long-term effectiveness in promoting change in geography instruction. Results of the study indicate that ASGI graduates not only make substantive changes in how they teach geography, but also conduct high-quality inservices that lead to changes in the teaching practices of their colleagues.  相似文献   
45.
Housing for government‐employed staff in remote Aboriginal communities is a topic that raises considerable debate amongst those whom it affects. Striking at the heart of Australia's effort towards reconciliation and a legacy of policy failure, debate regarding standards and siting of staff housing is highly political in nature. In Burringurrah, Western Australia, two government agencies recently undertook projects to provide staff housing within the community. Each agency approached its projects differently, but in both cases response at the ‘grassroots’ level was negative. This paper argues that a primary, but indirect, influence on ‘community’ satisfaction was the ideological structure of each agency. It follows, then, that understanding this organisational context is crucial to achieving more appropriate housing outcomes in the community.  相似文献   
46.
There have been reports for many years that the ionosphere is very sensitive to seismic effects, and the detection of ionospheric perturbations associated with earthquakes (EQs) attracts a lot of attention as a very promising candidate for short-term EQ prediction. In this review we present a possible use of VLF/LF (very low frequency (3–30 kHz)/low frequency (30–300 kHz)) radio sounding of seismo-ionospheric perturbations. In order to avoid the overlapping with my own previous reviews, we first show some pioneering results for the Kobe EQ and we try to present the latest results including the statistical evidence on the correlation between the VLF/LF propagation anomalies (ionospheric perturbations) and EQs (especially with large magnitude and with shallow depth), medium-distance (6-8 Mm) propagation anomalies, the fluctuation spectra of subionospheric VLF/LF data (the effect of atmospheric gravity waves, the effect of Earth's tides, etc.), and the mechanism of lithosphere-atmosphere-ionosphere coupling. Finally, we indicate the present situation of this kind of VLF/LF activities going on in different parts of the globe and we suggest the importance of international collaboration in this seismo-electromagnetic study.  相似文献   
47.
蔡晓梅  朱竑  刘晨 《地理学报》2012,67(2):239-252
地方感的研究为探讨人地关系提供了新的视角。情境主题餐厅作为能提供特殊体验的一种微观文化空间,为员工构造了一个“异位(heterotopias)”的超现实空间(hyperreality)。本文通过对广州味道云南食府这一典型情境主题餐厅员工的体验式观察和深度访谈,探讨了情境主题餐厅员工对不同尺度空间产生的不同地方感特征及其原因,得出以下结论:① 员工对情境主题餐厅及其所处城市的地方感存在差异。他们对餐厅具有强烈的地方认同和地方依赖,对餐厅所处城市具有地方依赖,但对餐厅以外的其他城市空间不存在地方认同;② 员工对情境主题餐厅地方感特征产生的原因是餐厅融洽的社交环境、良好的工作和生活环境以及较高认同的情境(文化);③ 员工对情境主题餐厅所处城市地方感特征产生的原因是城市所提供的良好工作条件、较差的自然环境、低熟悉的城市空间、对家乡的依恋和对“异乡人”的身份认同;④ 员工对情境主题餐厅及其所处城市的熟悉程度、环境和文化认同程度和归属/依恋程度的差异是员工对两者地方感存在差异的原因。结论对于丰富地方感在微观空间层面的理论与实证研究有重要的价值,能够为城市中其他微观文化空间的地方感研究提供借鉴。  相似文献   
48.
A fluid‐saturated flat channel between solids, such as a fracture, is known to support guided waves—sometimes called Krauklis waves. At low frequencies, Krauklis waves can have very low velocity and large attenuation and are very dispersive. Because they propagate primarily within the fluid channel formed by a fracture, Krauklis waves can potentially be used for geological fracture characterization in the field. Using an analogue fracture consisting of a pair of flat slender plates with a mediating fluid layer—a trilayer model—we conducted laboratory measurements of the velocity and attenuation of Krauklis waves. Unlike previous experiments using ultrasonic waves, these experiments used frequencies well below 1 kHz, resulting in extremely low velocity and large attenuation of the waves. The mechanical compliance of the fracture was varied by modifying the stiffness of the fluid seal of the physical fracture model, and proppant (fracture‐filling high‐permeability sand) was also introduced into the fracture to examine its impact on wave propagation. A theoretical frequency equation for the trilayer model was derived using the poroelastic linear‐slip interface model, and its solutions were compared to the experimental results.  相似文献   
49.
2011年3月10日中国云南盈江发生5.8级地震, 3月11日日本本州岛东海岸附近海域发生9.0级地震。 2011年3月7日、 8日云南永胜地磁台站观测到了舒曼谐振前4阶振幅异常增大。 本文建立了基于三维时域有限差分方法的舒曼谐振模型, 利用该模型对盈江地震对永胜站观测到的舒曼谐振影响进行了数值分析。 通过对实验和模拟结果进行分析, 认为此次云南永胜观测到的舒曼谐振异常不仅与日本地震相关也可能与云南盈江地震相关。  相似文献   
50.
讨论水准标尺误差在垂直形变资料中的影响。标尺误差以系统误差为主,对形变资料的影响在小范围内近似为尺度比例误差,在大的时空范围内具有系统性与偶然性相间影响的双重特性。它必然产生程度不同的地形相关现象,使用资料时要充分顾及尺长误差的历史状况。为满足形变监测的需要,应从标尺的制造工艺、检定精度、使用过程及资料预处理方面加以改进,进一步提高尺长的精确度。  相似文献   
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