CONCONI和PALIER测试在足球运动员最大有氧能力评定中的作用及方法学分析

CONCONI和PALIER测试均可用于评定足球运动员最大有氧能力。比较两种测试方式,同一受试者PALIER测试时的心率反应及运动距离均高于CONCONI测试,这一生理机能反应与两种运动设计方式不同有关,CONCONI递增强度梯度大于PALIER测试可能是导致受试者不同机能反应的基本原因。

医疗单位药品质量监管工作中存在的问题与对策

目的 分析医疗单位药品质量监管工作现状 ,探讨保证药品质量的途径和方法。方法 对我地及周边 14家二级以上医疗单位的药品质量监管工作现状进行调查 ,分析其存在问题 ,寻求其解决办法。结果 存在的问题主要有 :药品品种多 ,质检能力有限 ;药品贮存分散 ,质监工作覆盖面有限 ;质检工作存在重自制制剂等不合理现象 ;管理规章存在缺陷。对策为 :从制度上规范药品质量监管工作 ;建立有效的监管网络 ;调整品种结构 ,控制总量 ;实施全面监管。结论 医疗单位应做好药品质量监督管理工作 ,保证患者用药安全。

高校勤工助学工作策略探析

精心筹划和认真实施勤工助学策略是深入开展高校勤工助学工作的重要保证。高校勤工助学工作策略的制定应本着教育效益与经济效益并重的原则。要注重勤工助学基地建设,抓好规范管理,全面兼顾,不可偏废。

巧借“窗报”文化,提升儿童素养

"窗报"是由学生自己动手组稿、编辑、排版、插图、书写的,贴在窗户上的报纸;它类似于手抄报、黑板报,包含了很广泛的知识,通过一张张窗报的制作,儿童丰富了知识,开拓了视野,锻炼了综合能力,提高了整体素质,对促进儿童的健康成长具有重要的意义。

试谈新课程理念下中考数学复习策略

初中数学是一门基础学科，也是我们中考的一门重要学科，由于抓好初三考前复习，方法策略十分重要。把握中考改革的方向，重“双基”考查，重视应用数学的意识。关注过程，考查探究能力，突出数学思想方法，注重考查综合能力。注重开发学生的潜能，让学生学会复习方法。让学生学会反思， 提高学生分析问题、解决问题的能力，即数学能力。注重一题多解；注重多题一解；注重数学思想教学等。从而有效提高数学复习质量。

Coupled simulation of BES-CFD and performance assessment of energy recovery ventilation system for office model

Thermal comfort and indoor air quality as well as the energy efficiency have been recognized as essential parts of sustainable building assessment. This work aims to analyze the energy conservation of the heat recovery ventilator and to investigate the effect of the air supply arrangement. Three types of mixing ventilation are chosen for the analysis of coupling ANSYS/FLUENT （a computational fluid dynamics （CFD） program） with TRNSYS （a building energy simulation （BES） software）. The adoption of mutual complementary boundary conditions for CFD and BES provides more accurate and complete information of indoor air distribution and thermal performance in buildings. A typical office-space situated in a middle storey is chosen for the analysis. The office-space is equipped with air-conditioners on the ceiling. A heat recovery ventilation system directly supplies flesh air to the office space. Its thermal performance and indoor air distribution predicted by the coupled method are compared under three types of ventilation system. When the supply and return openings for ventilation are arranged on the ceiling, there is no critical difference between the predictions of the coupled method and BES on the energy consumption of HVAC because PID control is adopted for the supply air temperature of the occupied zone. On the other hand, approximately 21% discrepancy for the heat recovery estimation in the maximum between the simulated results of coupled method and BES-only can be obviously found in the floor air supply ventilation case. The discrepancy emphasizes the necessity of coupling CFD with BES when vertical air temperature gradient exists. Our future target is to estimate the optimum design of heat recovery ventilation system to control CO2 concentration by adjusting flow rate of flesh air.

The Impact of Occupant Behavior on Daylight Performance of an Office Room in a Tropical Climate

This work explores three patterns of occupants’ control of window blinds and the potential influence on daylight performance of an office room in a tropical climate. In this climate, windows are frequently obstructed by curtains to avoid glare, despite the daylighting and the exterior view. The consequences are obstructed outside view, poor daylight quality and dependency on artificial lighting. This paper assesses the impact on available daylight using parametric analysis based on daylighting dynamic computer simulations using Grasshopper and Daysim software, combining WWR （window-to-wall ratio） （40% and 80%）, SVF （sky view factor） （small and large） and occupant behavior （active, intermediate and passive users）. The user patterns are based in an office buildings survey that identifies preferences concerning daylight use and control of shading devices. The daylight performance criteria combine UDI （useful daylight illuminance） （500-5,000 lux） and illuminance uniformity distribution. Results confirm the impact of occupant behavior on daylighting performance. The optimum combination of external shading devices, high SVF and high window size results in a useful daylighting for 1/3 of the time for passive users and 2/3 for active users.

Perceived Indoor Discomfort, Performance and Productivity

Even all indoor environmental standards are met the users are usually not satisfied and perceived discomfort is occurred in the smart office buildings. The most frequently cause of discomfort in smart buildings is overrun of intelligence. There are physical and psychological factors that influenced building users＇ comfort. An indoor air quality seems to be one of the main problems of smart office buildings. In Slovakia the office buildings relating to indoor environment European standard are mostly evaluated as the non-low polluting buildings. The pollution from building as well as the pollution from occupancy and using was respected. The odor intensity and indoor air acceptability were assessed by a sensory panel. The concentrations of total volatile organic compounds and carbon dioxide were measured. The odors from building materials studied under different air change rate are presented in this paper. The case study of indoor air acceptability concerning to indoor odors under occupancy and its affect on perceived air quality influenced by air change rate are also presented in this paper.

Analysis on the Promotion of Computer Intelligent Office System

Based on the present condition of computer hardware and software system, office automation has been basically implemented in most companies. From a long-term perspective, the future office system also needs to be gradually upgraded with the development of technology. In this paper, the role of office automation is expounded first, and then the application model of computer intelligent office system is studied, and finally the matters needing attention in the process of companies to promote intelligent office system are analyzed. It is hoped that this paper can provide inspiration and help for further study.

Analysis on the Promotion of Computer Intelligent Office System

Based on the present condition of computer hardware and software system, office automation has been basically implemented in most companies. From a long-term perspective, the future office system also needs to be gradually upgraded with the development of technology. In this paper, the role of office automation is expounded first, and then the application model of computer intelligent office system is studied, and finally the matters needing attention in the process of companies to promote intelligent office system are analyzed. It is hoped that this paper can provide inspiration and help for further study.

An Experimental and Numerical Analysis of Daylighting Performance for an Office Building

The urgency of increasing energy efficiency in new building design and retrofits has pushed lighting simulation to play a central role in sustainable lighting design. The shape of the building and its orientation, the reflectances of building surfaces and glazed areas are important parameters in the daylighting design of buildings. Glazing systems can cut energy consumption and associated pollution sources, reduce peak demand, enhance daylighting performance and improve occupant comfort. This paper presents the results of a numerical and experimental comparison between the performances of an office building with and without external sunscreens. The aim was to analyse the illuminance distribution and some investigations have also been made with regards to the effect on daylight in rooms when sunscreens are used. The experimental results were obtained using an office building scale model and sky simulator. The numerical results were obtained through radiance, the ray-tracing program, to accurately predict the light levels and produce photo realistic images of the architectural space in all sky conditions： Illuminance values were obtained respectively through reference point measurements. The daylighting performances of the office building model with and without the sunscreens have been compared and analysed.

Faults and Claims about Thermal Environments in Relation to Energy Saving Measures in Smaller Office Buildings

Building equipment, energy-saving systems, and claims of inappropriate indoor thermal environments were analyzed in relation to the floor area using responses to a questionnaire survey of service managers of 157 buildings built in Osaka, Kyoto and Hyogo prefectures in Kinki area of Japan. Results show the following： （1） In smaller buildings （〈 5,000 m2）, setting temperatures are higher in summer and lower in winter, effects of ＂uncomfortable radiation from windows＂ are greater, energy-saving systems decrease indoor thermal comfort, but claims of ＂hot＂ and ＂cold＂ are fewer; （2） Claims of ＂hot＂ and ＂cold＂ are unrelated to the setting temperature and whether the air-conditioning control system is central or local; （3） The adoption rates of mitigation of dress codes （＂COOL-BIZ＂ and ＂WARM-BIZ＂） are higher than those of temperature mitigation of air conditioning.

Word-Guessing Ability in English Reading Comprehension of Non-English Major Students in Private University

In order to provide English as a foreign language students with effective English language learning approaches, this investigation is focused on how students deal with words when they are doing reading material. It is found that most students can use some skills to guess the unknown words in reading materials, such as explanatory analysis skills, syntactic analysis skills, and structural analysis skills, while they have overlooked how these words are organized metaphorically and metonymically. This investigation will provide students with the target language knowledge metaphors and metonymy, examining the impact on computer vocabulary guessing and reading comprehension through teaching the concept of metaphor and metonymy. In this research, the new word-guessing skill based on the knowledge of metaphor and metonymy was applied to word-guessing teaching in reading comprehension of computer material. The research question is studied in this experiment： Can the training of using ways of word-guessing base on the knowledge of metonymy and metaphor promote students＇ ability of word guessing in reading comprehension of computer material？ The results show that students have gradually paid attention to the word-guessing skill in reading process. The skills based on the knowledge of metaphor and metonymy have helped students get the right meaning of the unknown words in computer reading materials. It has really enlarged students＇ vocabulary and improved their confidence in finishing reading.

A Predictive Nighttime Ventilation Algorithm to Reduce Energy Use and Peak Demand in an Office Building

The effect of two nighttime ventilation strategies on cooling and heating energy use is investigated for a prototype office building in several northern America climates, using hourly building energy simulation software （DOE2.1E）. The strategies include： scheduled-driven nighttime ventilation and a predictive method for nighttime ventilation. The maximum possible energy savings and peak demand reduction in each climate is analyzed as a function of ventilation rate, indoor-outdoor temperature difference, and building thermal mass. The results show that nighttime ventilation could save up to 32% cooling energy in an office building, while the total energy and peak demand savings for the fan and cooling is about 13% and 10%, respectively. Consequently, finding the optimal control parameters for the nighttime ventilation strategies is very important. The performance of the two strategies varies in different climates. The predictive nighttime ventilation worked better in weather conditions with fairly smooth transition from heating to cooling season.

Energy consumption,indoor environmental quality,and benchmark for office buildings in Hainan Province of China

With rapid economy growth,building energy consumption in China has been gradually increased.The energy consumption and indoor environmental quality of 51 office buildings in Hainan Province,a hot and humid area,were studied through collection of verified data in site visits and field tests.The result revealed that,electricity accounted for 99.79% of the total energy consumption,natural gas 0.17%,and diesel 0.04%.The air conditioning dominated the energy use with a share of 43.18%,equipment in the particular areas 26.90%,equipment in the office rooms 11.95%,lighting system 8.67%,general service system 7.57%,and miscellaneous items 1.73%.Statistical method including six indicators obtained the energy consumption benchmark with upper limit of 98.31 kW-h/m2 and lower limit of 55.26 kW-h/m2.According to ASHRAE standard(comfortable standard) and GB/T 18883-2002(acceptable standard),the indoor environmental quality of 51 sampled office buildings was classified into three ranks:good,normal and bad.With benchmark of building energy consumption combined with indoor environmental quality,it was found that only 3.92% of sampled buildings can be identified as the best performance buildings with low energy consumption and advanced indoor environmental quality,and the buildings classified into normal level accounted for the maximum ratio.

Consumer Central Energy Flexibility in Office Buildings

Energy flexibility in buildings will play an important role in the smart energy system. Office buildings have more potentials to provide energy flexibility to the grid compared to other types of buildings, due to the existing building management, control systems and large energy consumption. Consumers in office buildings （building owners/managers and occupants） take a main role for adopting and engaging in building energy flexibility. This paper provides a systematic review of consumer central energy flexibility in office buildings with the discussion of social, technical and business aspects. This paper clarifies the correlations of consumers＇ concems, external influential factors, energy flexibility resources and technology with eight hypotheses. This paper suggests that technical solutions with the integration of distributed energy resources, building management and control system can boost energy flexibility in the office buildings.

Discussion on the Design of E-commerce Automatic Operation Module

E-commerce refers to a kind of business and trade activities, which are conducted under the situation that buyers and sellers do not meet each other by using a fast, easy and low-cost way. Along with the promotion and application of computer office automation, it is necessary for e-commerce module to develop towards automation, in which the core lies in making a good design for operation module. In this paper, the promotion of e-commerce in the information age is reviewed by the authors, the unique characteristics of e-commerce functional modules are analyzed, and also the most important point of the design of e-commerce automatic operation module is discussed. Hopefully, helps can be provided for relevant follow-up studies in the future.

Discussion on the Design of E-commerce Automatic Operation Module

E-commerce refers to a kind of business and trade activities, which are conducted under the situation that buyers and sellers do not meet each other by using a fast, easy and low-cost way. Along with the promotion and application of computer office automation, it is necessary for e-commerce module to develop towards automation, in which the core lies in making a good design for operation module. In this paper, the promotion of e-commerce in the information age is reviewed by the authors, the unique characteristics of e-commerce functional modules are analyzed, and also the most important point of the design of e-commerce automatic operation module is discussed. Hopefully, helps can be provided for relevant follow-up studies in the future.

Performance and Effectiveness of Portable Air Cleaners in an Office Room： An Experimental Study

Nowadays, many people work in an office environment. Air pollutants, including particles and gases, are generated by humans and by different devices that are used in offices. Pollutants can also enter an office room with the air supplied from outdoors. It has been established that air pollutants have adverse health effects on human body. Air cleaning devices are commonly marketed as being beneficial for the health by removing air pollutants and consequently improving indoor air quality. The performance of five air cleaning technologies was tested in order to determine the generation of ozone and particles in an office room. The particle removal effectiveness of the technologies was also determined in order to clarify their ability to remove UFPs （ultrafine particles） in the office room. The tested five air cleaning technologies are non-thermal plasma, corona discharge ionizer, portable air purifier, electrostatic fibrous filter and three-dimensional fibrous filter. The interior surfaces of the office room emit low levels of volatile organic compounds, since the office room has not been refurbished for about two decades. The results showed that the particle removal effectiveness of the technologies was ranged between 0.2 and 0.45 for the office room. The three technologies using/generating ozone significantly increased the ozone level in the office room. However, no increase of the UFP concentration was detected.