查询词典 sleep rough

An algorithm is developed to differentiate sleep stages with respiration frequency and frequency of leg movements to differentiate sleep into four sleep stages including awake, deep sleep, light sleep and REM.

接著本研究即尝试发展一套判读睡眠阶段演算法，以呼吸频率变异系数和腿部动作频率两项外显行为讯号判读睡眠阶段，能将整晚睡眠区分为清醒、深眠、浅眠、 REM 等四个阶段。

In chapter 2, basic knowledge of the rough set theory, such as indiscernibilityrelation, elementary set, approximate space, upper approximation, lower approximation, negative region, boundary region, rough set, etc., and algebraic properties of rough set are introduced. At the same time, the feature of the rough, set theory is also introduced.

第二章介绍了粗糙集理论基本知识，如不可分辨关系、基本集、近似空间、上近似、下近似、负域、边界域、粗糙集等概念，以及粗糙集的代数性质，同时还介绍了粗糙集理论的特点。

The most famous rough algebras are Rough Double Stone Algebra, Rough Nelson Algebra and Approximation Space Algebra, and their corresponding general algebra structures are regular double Stone algebra, semi-simple Nelson algebra and pre-rough algebra respectively.

其中最有影响的粗代数分别是粗双Stone代数、粗Nelson代数和近似空间代数，它们对应的一般代数结构分别是正则双Stone代数、半简单Nelson代数和预粗代数。

In this paper,the main work is to extended the premitive model of rough sets;Accorting to the Rough structure and algebra structure,the main work is to study the application of rough set theory on algebra system-group,so that rough algebra system is better perfectly.

本文在现有的Pawlak粗糙集模型基础上，对模型进行推广；根据粗糙结构和代数结构及已有的研究成果的基础上，更进一步地研究了粗糙集理论在代数系统一群上的应用，以此建立较为完善的粗糙代数系统。

At the early 1980s, is an effective mathematic tool to deal with the uncertain or fuzzy knowledge. Rough rule theory has been widely used in information retrieval, digital library, software engineering and knowledge discovery. Its main idea includes acquisition of rough decision rules by reduction of data under the condition of keeping an invariability of classification capacity. And it basically represents a concept by a pair of approximation sets according to the partition on the given data based on the indiscernibility relation. Rough sets theory is well suited to deal with inconsistency of the rough approximations. So it is a new mathematical tool dealing with vagueness and uncertainty, and has found its applications in many areas such as AI, KDD, pattern recognition and classification and fault diagnosis.

主要完成了以下几个方面的工作：(1)对于高速移动机器人车道线跟踪问题中的规则知识获取，首先阐述了模糊逻辑系统的基本特点、工作原理和基本作法，分析了模糊规则知识获取过于依赖专家经验知识、对于每一个细节几乎都需要人工主观经验的参与、难以处理大数据集样本等方面的不足，进而阐述了粗糙集合理论的基本特点、基于粗糙集合理论的规则获取的关键技术和工作原理，为后续章节中经典粗糙集合模型的扩展及粗糙决策规则集的性能分析做好基础；(2)在经典粗糙集理论及其一般扩展的可变精度粗糙集VPRS的基础上，提出了非均匀可变精度粗糙集模型k-VPRS。

The main contributions and innovations in this dissertation are as follows:(1) The uncertainty of knowledge and rough set is discussed and a fuzzy entropy measure method based on boundary region is put forward. It redefines knowledge rough entropy and rectifies the definition of rough entropy of rough set.

论文的主要贡献及创新如下：(1)对知识和粗集的不确定性进行了深入研究，提出一种基于边界域的模糊熵度量方法，重新定义了知识粗糙熵并修正了粗集粗糙熵的定义。

"Sleep disruptions were similar in the NR and RD conditions, but did not involve REM sleep; the effects on pain threshold observed in the RD condition were therefore due specifically to the loss of REM sleep, not to the disruption of sleep per se," noted Dr. Roehrs."We found that REM loss itself was hyperalgesic."

Roehrs博士强调，在无快速眼动睡眠的因素下，NR及RD的睡眠干扰情况皆类似；在RD状态时，疼痛感受值会受到影响，这主要是因为丧失快速眼动睡眠的关系，而不是睡眠本身受到影响；我们发现，快速眼动睡眠的丧失，本质上就是痛觉过敏。

"Such findings suggest that the relationship between disturbed sleep and pain is bidimensionsal not only does pain disrupt sleep, but disrupted sleep may enhance pain," Timothy A Roehrs, PhD, lead investigator, told Medscape."We were interested in determining whether loss of REM sleep itself is hyperalgesic."

Timothy A Roehrs博士向Medscape表示，这项试验结果显示，被干扰的睡眠与疼痛之间的关系是双向性的；亦即，疼痛不仅会阻扰睡眠，睡眠受到阻扰也会加强疼痛的感觉；我们想要探究的是，短少的REM睡眠，本身是否就是痛觉过敏。

The results showed that older age, women, widowed, low level education , unemployed, have religious belief and low income, obesity , unhealth status, many doctor visits, no exercise and low sleep hours have bad quality of sleep.The study reveals that the sex, marital status, education, body mass index, health status, doctor visits, exercise status and sleep hours under six hours were significant associated with the quality of sleep.

本研究针对国人睡眠品质以及失眠情形加以探讨，研究结果显示，年龄越大、女性、丧偶、教育程度低、无工作、有宗教信仰以及个人收入较低者、肥胖者(BMI≧27)、自觉健康状况不佳、就医次数多、无运动以及睡眠时数小於6小时者的睡眠品质有较严重的情形；其中性别、婚姻状况、教育程度、身体质量指数、自觉健康状况、就医次数、运动状态以及睡眠时数小於6小时者是影响睡眠品质的因素。

Measurements and Main Results: The main abnormalities were a low percentage of rapid eye movement sleep counting, for a median (25th-75th percentiles) of 10%(3.5-12.5) of total sleep, and a highly fragmented sleep with 29 arousals and awakenings per hour of sleep.

方法和结果：主要的异常结果为快眼动相睡眠数的百分比较少，其中位数（25~75%）是10%（3.5~12.5），片断睡眠的比例较高，每小时睡眠约有29次微觉醒和觉醒。

A major factor in deviation from optimal performance of the activated sludge secondary clarifier is the presence of density currents,resulting from the density difference and temperature difference.

异重流的形成是影响活性污泥系统二沉池水力学性能的主要因素，形成异重流的主要原因包括沉淀池内不均匀的污泥分布和温度分布。

You always nip it in the bud.

你总是有办法解决的。