一种新型的磁定向系统及其定向算法研究

为了提高基于地磁检测的定向精度,通过引入高精度步进电机控制,设计了一种新型的平面单轴磁定向系统。该系统仅需要一个磁性传感器输出信号,通过步进电机带动磁传感器在水平面内做等间隔转动,求取最大值位置以确定磁方位。针对干扰和测试噪声的影响,研究了基于遗传算法和最优化理论的混合数据处理方法。通过对测试数据正弦曲线的四参数拟合,获取初始相位,提高了测角精度。仿真研究和工程实验表明：该定向方法有着较高的精度和较好的稳定性。     

一种用于农业环境监测的无线传感器网络设计

提出一种应用于农业环境信息监测的无线传感器网络,实现对农业试验田温度、湿度及光照强度的实时监测。处于同一个网络的节点通过点名和轮询机制,实现网络的建立与维护。传感器节点实时地获取所处环境的温度、湿度和光强信息。用户可根据需要查询相应的信息。实验结果表明：该网络能够实现所需信息的获取和传输功能。     

Driving business performance: innovation complementarities and persistence patterns

Complementarities between technological and non-technological innovation are crucial determinants of firm performance. Although innovation complementarity has been extensively tested in the empirical literature, it has not been analysed in conjunction with innovation persistence. This fact is mainly due to the lack of data sets able to provide adequate longitudinal information. The capacities to develop market-oriented behaviour and introduce new organisational innovations, together with technological innovation, are the drivers of a firm’s productivity and profitability. We find that these activities complement technological innovation and that their impact is greater when they persist over time, thus introducing a more general concept of innovation persistence. We present an empirical model based on a large new panel of Italian manufacturing firms covering the period 2000–2012 which enables us to determine the precise impacts of a firm’s innovative attitude, in a broad definition that incorporates non-technological innovation and persistence, on its productivity and profitability.     

The Consumer Reports mental health survey.

Provides an overview of the 1995 Consumer Reports survey of the effectiveness of psychotherapy. Specific issues addressed include the study's goals; the findings for mental health professionals, family doctors, and self-help groups; and methodological strengths and weaknesses related to external validity, sampling, controls, self-reports, and time frame. The data show that, free of the artificial constraints of controlled studies in the real world, a population of consumers can often benefit from psychological intervention services. Real relief can be found at the hands of professional mental health providers. M. Kotkin et al reaffirm their independence from M. E. P. Seligman (see record 1996-13324-001) regarding the interpretation of the data. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Errors in Seligman's "The effectiveness of psychotherapy: The Consumer Reports study."

Contends that there are 3 methodological errors and an inconsistency in M. E. P. Seligman's (see record 1996-13324-001) reanalysis of the 1995 Consumer Reports survey of the effectiveness of psychotherapy. These errors are directly relevant to the cost-effectiveness of psychotherapy. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

2010年我国恶意代码新特点的研究

文章以公安部2010年计算机病毒疫情调查活动的数据作为基础,以国家计算机病毒应急处理中心国家级恶意代码样本库作为支撑,结合信息网络安全通报机制成员单位汇总的情况和各反病毒研究机构发布的安全报告,阐述了2010年我国恶意代码发展的总体情况,分析了2010年我国恶意代码出现的新特点,探索了今后恶意代码的发展趋势并提出对策建议。     

多源信息融合能力评估关键技术综述

为了对多源信息融合技术在海战场作战指挥方面发挥的作用进行定量描述,文章在多年信息融合测试评估研究的基础上,对海战场多源信息融合所涉及的能力指标计算、归一化及综合、测试评估系统设计、测试想定设计、适合信息融合的信息源模拟器建设等涉及的关键技术进行了描述,并给出了一个实际的评估例子。     

Development of a stable localized visual inspection system for underwater structures

To avert potential crisis from Japan’s aging infrastructure and declining birth rate, the Japanese Government is planning to introduce robotic technology for the inspection of social infrastructure (such as pipes, dams, and bridges). Recording underwater positions is a difficult task for human divers who undertake conventional dam inspections. This study presents the Anchor Diver 5.2 system for efficient and effectual dam inspection. Anchor Diver 5.2 is based on an extended-tether-maneuvered remotely operated vehicle (ROV) equipped with cameras. The ROV is lowered into water by a hoist system from a boat and implements a visual survey of the concrete underwater structure. To improve the visibility of the ROV in murky and cloudy water, a novel concept named Water Loupe is proposed. In addition, a simple boat-fixing method is proposed to provide a stable base on the water surface, and the underwater position of the ROV, which cannot be accessed by global positioning systems, is recorded using a feasible localization method. Finally, the developed system was evaluated in field experiments conducted in the Amagase Dam, Japan, and its merits and problems are discussed.     

情感词典构建综述

文本情感分析是近年来迅速兴起的一个研究课题,具有显著的研究价值和应用价值。情感词典的构建在情感分析任务中发挥着越来越重要的影响力。该文对情感词典构建的研究进展进行了总结。首先重点介绍了情感词典构建的研究现状,将其归纳为四种方法,即基于启发式规则的方法、基于图的方法、基于词对齐模型的方法以及基于表示学习的方法,并对每种方法进行介绍和分析;然后对一些常见的语料库、词典资源以及评测组织进行介绍;最后,对情感词典的构建进行了总结,并对发展趋势进行了展望。
     

Attitudes to telecare among older people,professional care workers and informal carers: a preventative strategy or crisis management?

This paper reports findings from an attitudinal survey towards telecare that emerged from 22 focus groups comprising 92 older people, 55 professional stakeholders and 39 carers. These were convened in three different regions of England as a precursor to telecare service development. The results from this study suggest that informants’ views were shaped by prior knowledge of conventional health and social care delivery in their locality, and the implication is that expectations and requirements with respect to telecare services in general are likely to be informed by wider perceptions about the extent to which community care should operate as a preventative strategy or as a mechanism for crisis management.