用户偏好的室内环境舒适度智能控制方法仿真研究

摘要：研究室内环境舒适度优化控制问题。室内热环境是一种具有多变量、强耦合、非线性、参数时变系统,难以采用传统的数学和仿真方法对其建模,当前控制方法难解决舒适和节能两个控制目标的矛盾,为此,提了一种基于用户偏好的室内环境舒适度智能控制方法。首先将室内环境舒适度优化问题看作一个多目标优化问题,然后根据用户偏好信息作为评价指建立用户热/冷抱怨事件模型,最后通过遗传算法室内舒适度控制系统的最优参数进行求解,解决了决舒适和节能冲突难题,并通过仿真实验对控制方法进行测试。仿真结果表明,本文方法通过实时采集室内环境和用户偏好信息,通过智能、动态调节控制系统参数,使室内环境处于一种最舒适状态,克服传统方法不足,实验证明了本文控制方法的有效性。     

基于用户偏好和层次分析的数字家庭业务调度算法

根据用户对业务的使用偏好提出了一种基于层次分析法(AHP)的数字家庭智能业务调度算法,通过对制约因素、备选业务进行相对权重分析,确定最符合用户需要的业务,从而可以提前调度业务,保障用户使用业务的满意度和舒适度.结果表明,考虑用户偏好的层次分析调度算法更能适应个性化的数字家庭环境,与轮询调度算法相比,提出的业务调度算法成功匹配率更高.     

基于用户偏好和层次分析的数字家庭业务调度算法

根据用户对业务的使用偏好提出了一种基于层次分析法(AHP)的数字家庭智能业务调度算法,通过对制 约因素、备选业务进行相对权重分析,确定最符合用户需要的业务,从而可以提前调度业务,保障用户使用业务的 满意度和舒适度.结果表明,考虑用户偏好的层次分析调度算法更能适应个性化的数字家庭环境,与轮询调度算法 相比,提出的业务调度算法成功匹配率更高.     

泡沫玻璃外墙外保温技术在工程中的应用

泡沫玻璃外墙外保温技术在六处18号、19号楼的应用提高了用户的入住舒适度,为用户节约了后期资金。     

济南市旅游气候的舒适度研究

根据济南市气象站1951～2000年气象资料,分析与人体舒适度有关的气温、相对湿度、风速等气象要素的基本气候特征,研究济南市人体舒适度的时空分布特征,进而对济南市的旅游人体舒适度进行评价,探讨各气象要素对不同季节舒适度的影响以及舒适度的变化趋势,分析济南市最佳旅游时间.     

面向卫浴产品设计的人体沐浴温觉研究

为了提高现代卫浴产品的使用性能和用户舒适度,在特定试验条件下,从心理物理学方面入手,采用数量估计和统计分析等方法,对用户沐浴舒适水温范围的测量、静动态水的温度感知对比、实际水温与水温感受值之间的关系进行了试验设计和定量分析,确认了相关函数关系式.通过史蒂文斯定律验证试验结果,证实了函数关系式的有效性.     

考虑峰谷差因素的用户侧负荷优化运行

在智能电网高速发展背景下,针对用户侧节能减排和电网侧削峰填谷问题,提出家庭负荷优化运行策略。基于家电能量控制系统,将峰谷差成本化,以最小化用户侧电能成本和最小化电网侧峰谷差为目标,考虑分时电价,可转移负荷时间舒适度约束和温控类负荷温度舒适度约束。综合峰谷差系数,采用粒子群算法进行求解,最终得出各类家电的运行方案。算例仿真结果表明,优化方案实现了用户侧和电网侧的利益双赢。     

视屏显示终端作业中键盘手托对上肢肌肉活动的影响

目的 探究用户在VDT作业中使用有托和无托的键盘对人体上肢相关肌肉活动及主观舒适度的影响,并完成上肢肌肉的活性筛选。方法 经过调研，抽选10名被试，通过让被试分别使用有托键盘与无托键盘进行一定时间段的键盘输入，实验后选取上肢肌肉活动影响较大的肌肉块，并分析相关部位主观舒适度。结果 使用有托键盘，上肢肱二头肌（BB）和拇短展肌（APB）负荷明显降低，可提升受试者右手与右手腕的主观舒适度。使用无托键盘，除对受试者的右手与右手腕有不舒适影响，对其余各个部位的主观舒适度均无影响。此外，经肌肉贡献率的量化计算，筛选出几块活性较强、伸缩性较大的上肢肌肉，给予后续应用。结论 使用有手托键盘可有效减小上肢中前臂肌肉负荷，并增加右手腕与右手的主观舒适度。活性较强、伸缩性较大的上肢肌肉排序，即伸腕桡侧肌（ECR）、 屈腕桡侧肌(FCR) 、伸腕尺肌（ECU）和拇短展肌（APB）。     

基于FAHP模型的厦门旅游气候舒适度评价研究

利用厦门近30多年基本气候资料,对温湿指数、风寒指数,着衣指数和人体舒适度指数进行分级赋值,通过FAHP(Fuzzy Analytic Hierarchy Process,模糊层次分析法)确定权重,构建综合气候舒适度模型,评估厦门旅游气候的舒适度及持续时间.为进一步说明气候舒适度对旅游业发展的影响,采用OLS方法分析气候舒适度与入境旅客月指数的相关性.结果显示:厦门市入境旅游月指数与气候舒适度之间的弹性系数为0.907 2,气候舒适度与客流量之间存在着正相关.本研究不仅分析了厦门市旅游客流量年内变化,也为旅游景点开发以及旅游景区的管理提供科学依据.     

学生机房人体舒适度监视系统的设计

学生机房室内环境与学生的健康和安全密切相关。在对学生机房人体舒适度进行研究的基础上提出了一个包含温度、相对湿度、氧气、二氧化碳等参数的舒适度评价指标,给出了一个学生机房人体舒适度监视系统的总体设计方案和舒适度参数的测量方法。实际应用表明,该系统可以为学生机房室内环境改善提供有效支持。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that