分类： 图书馆学、情报学 >> 情报学 提交时间： 2024-04-18
摘要： 目的/意义 自主知识体系是学科体系、学术体系与话语体系的集成，构建与梳理中国情报学自主知识体系是发展中国特色情报学的必然要求及时代需求。 方法/过程 学术期刊是我国情报学自主知识体系的重要载体，选择2014-2023十年间学术核心期刊发表的3173篇情报学文献作为观察对象，梳理并分析刊发情报学文章的学术核心期刊、期刊主题设置、关键词频次，采用文献计量与内容分析方法，利用CiteSpace软件进行可视化观察，展现中国情报学自主知识体系的内部结构与大致框架。 结果/结论 数智时代下，中国情报学自主知识的创新聚焦于科技与新兴技术为导向情报工具探索、大数据背景下的情报工作研究、区块链技术及人工智能时代的情报应用系统研究以及此背景之下图情学科建设等领域。
分类： 物理学 >> 核物理学 提交时间： 2024-01-03
摘要： Anonlinear dynamic simulation model based on coordinated control of speed and flow rate for the molten salt reactor and combined cycle systems is proposed hereto ensure the coordination and stability between the molten salt reactor and power system. This model considersthe impact of thermal properties of fluid variation on accuracy and has been validated with Simulink. This study reveals the capability of the control system to compensate for anomalous situations and maintain shaft stability in the event of perturbations occurring in high-temperature molten salt tank outlet parameters. Meanwhile, the control system's impact on the system's dynamic characteristicsunder molten salt disturbance is also analyzed. The results reveal that after the disturbance occurs, the controlled systembenefits from the action of the control, and the overshoot and disturbance amplitude are positively correlated while the systempower and frequency eventually return to the initial values. This simulation model provides a basis for utilizing molten salt reactors for power generation and maintaining grid stability.
分类： 护理学 >> 护理学 提交时间： 2023-09-13
摘要： 本文观察耳穴贴压治疗1例胸痹加失眠焦虑患者的效果，总结相关护理经验，在实施中医特色治疗护理中，常常会采用耳穴贴压治疗。这种治疗方法通常会结合常规护理、饮食护理和情志护理一起进行。耳穴贴压治疗的护理技术方法，作用直接、效果明显、无副作用，患者身心状态及生活质量有所提高，是促进患者康复的关键。
分类： 数学 >> 统计和概率 提交时间： 2019-07-21
摘要： Based on the point of view of neuroethology and cognition-psychology, general frame of theory for intelligent systems is presented by means of principle of relative entropy minimizing in this paper. Cream of the general frame of theory is to present and to prove basic principle of intelligent systems: entropy increases or decreases together with intelligence in the intelligent systems. The basic principle is of momentous theoretical significance and practical significance .From the basic principle can not only derive two kind of learning algorithms (statistical simulating annealing algorithms and annealing algorithms of mean-field theory approximation) for training large kinds of stochastic neural networks,but also can thoroughly dispel misgivings created by second law of thermodynamics on 'peoplespsychology ,hence make one be fully confident of facing life.Because of Human society, natural world, and even universe all are intelligent systems.
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