Objective： Sit-stand desks have been designed to address high daily sitting in work and school environments. The purpose was to determine the daily pattern of use and overall likeability of sit-stand desk over the co...Objective： Sit-stand desks have been designed to address high daily sitting in work and school environments. The purpose was to determine the daily pattern of use and overall likeability of sit-stand desk over the course of a semester. Participants： A total of 18 subjects （12 standing） completed the 11-week study （week 5-15 of the semester） from January-April, 2016. Methods： Each student in the standing group was given a sit-stand desk to use as they desired. Results： Individual daily standing time ranged from 0-100% of daily attendance time and the daily group average ranged from 2.1-38.4%. Two-thirds of the standing bouts were ≤ 2 min. Perception questionnaire answers were positive for using the desk and their effect on students’ ability to work in class. Conclusions： The results indicate the sit-stand desks were utilized at low levels and for short durations for most participants, but perceptions of desk use remained positive.展开更多
This paper introduces the solidworks design flow, design methods and design principles of desk lamp. And we use the ergonomics principle, analysis the function of each part of the lamp, and analyses the design of lamp...This paper introduces the solidworks design flow, design methods and design principles of desk lamp. And we use the ergonomics principle, analysis the function of each part of the lamp, and analyses the design of lamp components, to meet user needs in the bedroom, do practical, human nature and convenient lamp. The application shows that the use of this software can make easier the realization of the design of the parts with complex shape, raise the design efficiency, optimize the product structure and save the cost.展开更多
Background: The use of standing desks has been associated with greater metabolic cost as compared to traditional seated desks. However, it is unclear as to the metabolic impact of standing desks in normal weight versu...Background: The use of standing desks has been associated with greater metabolic cost as compared to traditional seated desks. However, it is unclear as to the metabolic impact of standing desks in normal weight versus obese men and women. Methods: We compared the metabolic cost of using a standing and seated desk in 14 obese and 19 normal weight men and women. Subjects reported to the lab on a single occasion and participated in two, 30-minute sessions of standing and seated desk work (i.e., typing), in random order. Expired gases were collected during the 2-hour period and calorie expenditure was estimated using indirect calorimetry. Results: We noted a significant (p = 0.013) increase in energy expenditure of 7.4 kcal•30 minutes−1 (+14.7%) during standing as compared to seated for the obese group. No significant difference in energy expenditure was noted for the normal weight group (p = 0.674). A condition effect was noted for heart rate and diastolic blood pressure, with standing being significantly higher than seated for both variables (p 0.05). Conclusion: The use of a standing desk modestly increases energy expenditure in obese subjects but does not have the same effect in those of normal weight. It is unknown whether the increased energy expenditure would be maintained over time in the obese subjects/individuals, as they may adapt to the standing position. Moreover, if normal weight individuals choose a standing desk, they should do so for reasons unrelated to increased energy expenditure (e.g., improved spine health, greater feeling of productivity).展开更多
文章通过分析教科版小学英语三年级《Put it on the desk》教学案例,来记录并说明薄弱学校在英语教学中使用基于移动终端的翻转课堂模式的教学效果,同时记录相关知识点的微课设计和课堂设计,旨在求教于方家,并为诸位教师同仁提供一些思...文章通过分析教科版小学英语三年级《Put it on the desk》教学案例,来记录并说明薄弱学校在英语教学中使用基于移动终端的翻转课堂模式的教学效果,同时记录相关知识点的微课设计和课堂设计,旨在求教于方家,并为诸位教师同仁提供一些思路和借鉴.展开更多
Sometimes you lose something.Itmaybeakeyoryourphone.Thenyou haveto look for it.Youcan lookinmanyplaces.Itmaybeinapocketor in adrawer.Youcan also look onthings.Itmay beonadeskora table.You may also need to look underth...Sometimes you lose something.Itmaybeakeyoryourphone.Thenyou haveto look for it.Youcan lookinmanyplaces.Itmaybeinapocketor in adrawer.Youcan also look onthings.Itmay beonadeskora table.You may also need to look underthings.Look between things,too.Itmay be between two books ortwosheets of paper.Or it may be nextto yourbed or your backpack.Lookcarefully.Youcan find it!展开更多
文摘Objective： Sit-stand desks have been designed to address high daily sitting in work and school environments. The purpose was to determine the daily pattern of use and overall likeability of sit-stand desk over the course of a semester. Participants： A total of 18 subjects （12 standing） completed the 11-week study （week 5-15 of the semester） from January-April, 2016. Methods： Each student in the standing group was given a sit-stand desk to use as they desired. Results： Individual daily standing time ranged from 0-100% of daily attendance time and the daily group average ranged from 2.1-38.4%. Two-thirds of the standing bouts were ≤ 2 min. Perception questionnaire answers were positive for using the desk and their effect on students’ ability to work in class. Conclusions： The results indicate the sit-stand desks were utilized at low levels and for short durations for most participants, but perceptions of desk use remained positive.
文摘This paper introduces the solidworks design flow, design methods and design principles of desk lamp. And we use the ergonomics principle, analysis the function of each part of the lamp, and analyses the design of lamp components, to meet user needs in the bedroom, do practical, human nature and convenient lamp. The application shows that the use of this software can make easier the realization of the design of the parts with complex shape, raise the design efficiency, optimize the product structure and save the cost.
文摘Background: The use of standing desks has been associated with greater metabolic cost as compared to traditional seated desks. However, it is unclear as to the metabolic impact of standing desks in normal weight versus obese men and women. Methods: We compared the metabolic cost of using a standing and seated desk in 14 obese and 19 normal weight men and women. Subjects reported to the lab on a single occasion and participated in two, 30-minute sessions of standing and seated desk work (i.e., typing), in random order. Expired gases were collected during the 2-hour period and calorie expenditure was estimated using indirect calorimetry. Results: We noted a significant (p = 0.013) increase in energy expenditure of 7.4 kcal•30 minutes−1 (+14.7%) during standing as compared to seated for the obese group. No significant difference in energy expenditure was noted for the normal weight group (p = 0.674). A condition effect was noted for heart rate and diastolic blood pressure, with standing being significantly higher than seated for both variables (p 0.05). Conclusion: The use of a standing desk modestly increases energy expenditure in obese subjects but does not have the same effect in those of normal weight. It is unknown whether the increased energy expenditure would be maintained over time in the obese subjects/individuals, as they may adapt to the standing position. Moreover, if normal weight individuals choose a standing desk, they should do so for reasons unrelated to increased energy expenditure (e.g., improved spine health, greater feeling of productivity).
文摘Sometimes you lose something.Itmaybeakeyoryourphone.Thenyou haveto look for it.Youcan lookinmanyplaces.Itmaybeinapocketor in adrawer.Youcan also look onthings.Itmay beonadeskora table.You may also need to look underthings.Look between things,too.Itmay be between two books ortwosheets of paper.Or it may be nextto yourbed or your backpack.Lookcarefully.Youcan find it!
