两种进化算法在BSS中的应用比较

介绍了两种分别引人遗传算法和免疫算法的盲源分离方法．通过仿真比较试验表明,两种算法对混叠信号的分离都有效,但基于免疫算法的分离效果都优于基于遗传算法的分离结果．     

从社会学、心理学角度设计图书馆读者调查问卷

从社会学、心理学角度出发,结合笔者在所在学校泉州师范院所作的问卷调查,重点讨论在读者调查问卷设计和调查过程中容易被忽视的一些问题,从实现问卷调查的目的性、信度、效度三者的高度统一方面提出一些新的观点和方法．     

The Development of Object Permanence in Children with Intellectual Disability,Physical Disability,Autism, and Blindness

This article presents a review of the literature on object permanence with an emphasis on research on children with severe disabilities. Object permanence is the realisation that objects continue to exist in time and place even when they are no longer visible. This understanding is achieved across Stages IV(VI of Piaget’s Sensorimotor Period. Children with intellectual disability, physical disabilities, blindness, and autism develop object permanence in a similar sequence although at a slower rate than children without disabilities. Challenges with regulation make it difficult for children with autism to demonstrate object permanence knowledge in Stage VI tasks. There is ample evidence that children with severe disabilities benefit from direct and systematic instruction of object permanence. Assessment‐based instruction, establishment of visual attention, consideration of the characteristics of the object to be hidden (including the impact on differential attention), repeated naming of the object, individually appropriate prompting procedures, and direct reinforcement have been found to support mastery of object permanence in children with disabilities.     

我国自然人破产立法探究

我国现行破产立法仅适用于企业法人,范围过于狭窄。建议以后赋予自然人破产能力,结合我国国情建立自然人破产制度。这是我国市场经济发展的要求,有利于促进市场经济的飞速发展。     

瞽目艺人文化渊源及民间口头传播述论

我国上古时期有宫廷“瞽”者乐官,后世有“觅食”说唱于世的民间瞽目艺人。本文通过文献的对比分析,考述其历史渊源及流变轨迹,同时也旨在揭示这一特殊群体曾在我国传统文化发展中的作用和意义。     

基于时域卷积盲信号分离的雷达干扰抑制算法

把卷积盲分离算法应用于雷达系统抗干扰中,提出一种新的雷达系统干扰抑制算法. 该算法在时域中对四阶累积量进行联合块对角化,以实现雷达信号和干扰信号的盲分离. 计算机仿真结果表明,在无噪及含噪情况下,该算法均可把卷积混合的雷达回波信号及干扰信号分离开来,且有很好的分离性能.     

发达国家残疾人体育法制建设经验对我国的启示

对发达国家残疾人体育法制建设情况进行分析,研究发现：发达国家重视残疾人体育法制建设并各具特色;残疾人体育法制建设有着广泛的社会组织参与和民众支持;能适时为残疾人参与体育活动提供法律帮助;判例法对维护残疾人体育权益发挥导向作用。得出启示：强化与完善残疾人体育法制建设;厘清与明确残疾人体育法规的部门职责;引导与鼓励社会力量和公民维护残疾人合法体育权益;加大残疾人公共体育设施的立法力度;借鉴与实施保障残疾人体育权益的法规范式。     

试论不正当竞争行为的变幻与法律规制

在市场经济运行过程中,竞争在促进生产力发展与社会经济资源优化配置方面产生积极的作用,在经济利益的驱动下,也会出现形形色色以追求高额利润为目的的不正当竞争行为。随着市场经济的发展,我国法律明确列举的不正当竞争行为已不能涵盖市场经济中层出不穷的各种不正当手段。文章通过对新型不正当竞争行为进行分析,并借鉴其他国家的立法对不正当竞争行为提出规制建议。     

基于第一视角的车辆盲区视野重现

车辆 A 柱盲区和侧方盲区常常会给行车过程带来巨大安全隐患,而现有盲区解决方案大多以第三视角合成显示,因畸变过大及视角过小等原因难以在行车过程中使用。利用摄像头及相关图像处理方法,对车辆盲区部分以第一视角进行重现显示。首先在车辆外部安装一组摄像头,然后利用标定板得到相机内参,之后基于参数计算求得透视变换矩阵,对采集到的图像根据驾驶员视角作透视变换处理,最后利用全景合成算法拼接成一副全景图,借助显示设备将一幅没有盲区的画面实时显示给驾驶员。实验结果表明,该方法能有效消除车辆 A 柱及侧方盲区,适合在行车过程中使用,且处理速度满足实时性要求。     

Psychological Mood Profiles of Sighted and Unsighted Beep Baseball Players

Purpose: Decline of motor performance in older individuals affects their quality of life. Understanding the contribution of sport-related training in advanced ages might help to attenuate motor performance decay as one gets older. The purpose of our study was to evaluate the extent to which long-lasting training in running or sport-specific skills during old age preserves motor performance in different motor tasks. Method: Older runners and tennis players with at least 10 years of training were assessed as were age-matched and young exercisers. Performance was evaluated for 6 motor tasks requiring different functions of sensorimotor control expected to decline with aging. Results: Analysis revealed that runners had increased aerobic fitness in comparison with the other older participants and that they presented similar performance to older exercisers in the motor tasks. Tennis players outperformed the other groups of older participants on coincident timing and simple reaction time and achieved similar performance to the young group on the timing task. Conclusions: These results suggest selective maintenance of task-specific processing through extensive practice of tennis-related motor skills in older adults.