大中专院校测绘专业实验室开放管理研究

大中专院校的测绘实验室开放管理是实践教学体系的一个重要环节,在人才培养方面起着重要作用。本文拟在郑州测绘学校实践教学改革的基础上,以实践教学方法的改革为动力,探讨传统实验室管理弊端,提出了大中专院校测绘实验室开放管理的内容、办法,在实验室管理运作模式、多媒体实践教学课件开发、开展综合性和设计性实践等多方面协调一致地进行全方位研究,探索新的实验室管理运作模式,提出关于开放性实验的对策及建议,并在其它大中专院校相关专业实践教学活动中推广。并实现整个实验室的高效运作,以进一步提高教学质量,培养学生创新、实践能力,探索出一条符合中国特色的大中专院校测绘专业实践教学的改革之路。     

地矿类测绘工程专业卓越工程师培养的初步实践

为执行国家"十二五"提出的"卓越工程师培养计划",提高学生工程实践能力和创新能力,本文从地矿类高校本科教学实践出发,结合我校实际情况及工程实习目标,深入分析实践教学环节存在的一些问题,提出一套有地矿专业特色的课程教学及实践教学建设方案,同时充分体现了本专业卓越工程师培养目标,即培养出理论强、技术硬、善创新、会管理的测绘人才。此方案的实施对于地矿专业本科生的培养有一定的实践意义和启发。     

《土木工程测量》教学模式的改革与创新

结合土木工程专业工程测量的教学,提出了在教学中优化教学内容、采用多元化的教学方法、构建创新性实践和实验实习综合评价体系,体现了传统方法与现代测量技术的有机结合,达到测量知识多元化的目的;理论和实践相结合,学生能更好地了解和掌握测量的技术与应用,减少教学与工程实际的差别。     

面状居民地匹配的空间认知特点研究

对匹配空间认知过程的理解和形式化表达是设计匹配算法的基础和出发点,同时又是检验匹配结果正确与否的落脚点.以面状居民地为例,分析了人在进行同名对象匹配时的心理历程和视觉思维特点.基于相似性理论,建立了居民地匹配过程中的相似性认知模式.通过设计不同层次的问卷调查,获取并分析了知识背景不同的制图人员在不同的匹配场景下对面状居...     

Speckle observations with PISCO in Merate: X. Astrometric measurements of visual binaries in 2009

We present relative astrometric measurements of visual binaries, made in 2009 with the speckle camera PISCO at the 102 cm Zeiss telescope of Brera Astronomical Observatory, in Merate. Our observing list contains orbital couples as well as binaries whose motion is still uncertain. We obtained 345 new measurements of 259 objects, with angular separations in the range 0.″18–4.″6, and an average accuracy of 0.″011. The mean error on the position angles is 0.°6. Most of the position angles were determined without the usual 180° ambiguity with the application of triple‐correlation techniques and/or by inspection of the long integration files. We have found a possible new close component for ADS 2377, which would be a new quadruple star system. We also present new revised orbits for ADS 8035, 9982, 11484, and MLR 198, partly derived from those observations, and infer estimated values for the masses of those systems that are compatible with the spectral types (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

土木工程专业测量实习的教学思考

首先提出了测量学课程在土木工程专业中的地位,同时强调了测量实习在理论课程学习中的重要性。其次对土木专业的测量实习现状做了详细的分析,最后根据笔者的经验和对一些院校的考察提出了对土木专业测量实习的改进意见。     

空间信息可视化挖掘研究

空间信息的可视化挖掘是数据挖掘领域的热点 ,具有很强的应用前景。本文从数据挖掘的基本概念入手 ,详细介绍了可视化数据挖掘的两种分类体系 :Keim分类体系和Card分类体系 ,同时分析了这两种分类体系中各种可视化数据挖掘方法的基本思路 ,探讨了可视化数据挖掘技术与空间信息领域应用相结合的各种途径 ,并给出了空间信息可视化挖掘的常用方法     

Colouration Phenomena of Mediterranean Blennies (Pisces,Blenniidae)

Abstract. The blennies of the Mediterranean Sea were observed in nature by snorkeling and SCUBA diving. Particular attention was paid to their changeable basic patterns and colouring alternations as effected by ecological and ethological factors. Additionally, the tendency for colour change was tested in differently coloured tanks. These experiments failed to demonstrate the striking adaptations seen in the natural environment, except for a remarkable reaction to black and white. The summary of all known reports is supported by colour illustrations; the problems of the colouring alternations are discussed.     

Fish Assemblages in Shallow Marine Caves of the Salento Peninsula (Southern Apulia, SE Italy)

Abstract. Fish assemblages of three shallow marine caves from the Salento Peninsula (Apulia, SE Italy) were investigated in July 2000. Data were collected in situ by using visual census. A total of nineteen fish species were recorded inside the caves. The species richness generally displayed a similar pattern in all three caves, decreasing from the entrance towards the innermost sections, whereas the patterns of total fish abundance differed among caves. Apogon imberbis (mainly represented by juveniles) was the most important species in terms of number of individuals (accounting for more than 85% of the censused fish) and showed a fairly even distribution inside the investigated caves. Without the numerical contribution of A. imberbis , fish abundance decreased from the entrance to the inner sections and this pattern was common to all three caves. Juvenile fishes of economic interest ( e. g., Diplodus vulgaris and Epinephelus marginatus ) were also recorded inside. The present study suggests that: (1) environmental constraints could affect distribution patterns in fish species richness and in the abundance of several fish along the axis of "blind caves" (with a single entrance), as already observed for sessile benthos and plankton assemblages; (2) shallow marine caves of the Salento Peninsula could exert the role of refuge and/or nursery for some littoral fish species during the adult and/or juvenile stages of their life histories.     

Beta diversity of pelagic assemblages at fish aggregating devices in the open ocean

Owing to difficulties in accessing the vast open ocean, the beta (β) diversity of pelagic fish assemblages remains poorly studied. We investigated the relationship between assemblage similarity and geographical distance between anchored fish aggregating devices (FADs), sampled by standardised underwater visual censuses in three anchored FAD arrays in the Indian Ocean—at the Maldives, the Seychelles and Mauritius. The use of two complementary indices of β-diversity, based on presence/absence data (Jaccard similarity coefficient) and abundance data (Bray–Curtis index), revealed that geographical distance between sampling sites (from 4 to 257 km) appeared to have no effect on the similarity of fish assemblages associated with FADs within each array. The results of this preliminary study question the generalisation of the paradigm of an increase in β-diversity with geographic distance to the open-ocean fish community. Large-scale studies using a variety of datasets should be conducted to further investigate patterns of β-diversity in the open ocean.