eServer pSeries撑起UNIX市场半边天——IBM互联网服务器部2003年策略发布eServer pSeries props up an half of the UNIX market--The strategy of IBM Internet Server Department in 2003 released 近日,IBM互联网服务器部发布了200...
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eServer pSeries撑起UNIX市场半边天——IBM互联网服务器部2003年策略发布eServer pSeries props up an half of the UNIX market--The strategy of IBM Internet Server Department in 2003 released 近日,IBM互联网服务器部发布了2003年的整体策略和业务重点,彰显在中国UNIX市场的宏图伟略。
随需应变,一触即发;精装平台一劳永“e”——IBM eServeri系列新品发布全国巡展拉开序幕Adaptivet to Neressities, Touch and Go;De Luxe *** and for All——Nationwide Itinerant Exhibition of New Products of IBM eServeriSeries ...
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随需应变,一触即发;精装平台一劳永“e”——IBM eServeri系列新品发布全国巡展拉开序幕Adaptivet to Neressities, Touch and Go;De Luxe *** and for All——Nationwide Itinerant Exhibition of New Products of IBM eServeriSeries Preludes IBM在北京举行了主题为“随需应变一触即发;精装平台一劳永“e” 的IBMeServer i系列新产品新闻发布会。会上,IBM发布了eScrver i系列的最新服务器,最新的电子商务解决方案以及在中国的市场策略。
The effectiveness and sustainability of water utilities depend on minimizing water losses, with apparent losses due to metering inaccuracies having the greatest impact on revenue, billing accuracy, utility management,...
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The effectiveness and sustainability of water utilities depend on minimizing water losses, with apparent losses due to metering inaccuracies having the greatest impact on revenue, billing accuracy, utility management, and resource planning. Ball valves are commonly used upstream and downstream of water meters, and in modern buildings, water meter rooms house meters arranged in a battery arrangement. Each meter is equipped with an upstream valve to shut off mains water and a downstream valve to prevent draining during replacement. Consumers often partially close the upstream valve to conserve water, particularly in areas with sufficient pressure. This study examines the effects of valve positioning and closure percentage on the behaviour of ultrasonic water meters, which are increasingly popular in the domestic market. Analysing meter behaviour under different closure percentages reveals that a 75% valve closure stops water volume registration, resulting in significant errors. These findings underscore the importance of carefully considering valve positioning and closure percentage to ensure accurate measurements, precise billing, revenue generation, resource optimization, and customer satisfaction.
国内厂商在IA架构服务器的研发设计上实现与国际巨头同步domestic manufactures keep pace with internationalmagnates in IA server development and design 近日,由浪潮集团自行设计的我国首款IA架构64位服务器在山东通过鉴定,这款...
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国内厂商在IA架构服务器的研发设计上实现与国际巨头同步domestic manufactures keep pace with internationalmagnates in IA server development and design 近日,由浪潮集团自行设计的我国首款IA架构64位服务器在山东通过鉴定,这款服务器是浪潮集团推出的第一款新安腾服务器产品。据了解浪潮IA架构4路64位高性能服务器采用In-telItanium系列处理器,处理器主频达到1GHz,处理器集成1.5MB/3MB同步高速三级缓存;同时,400MHz的系统总线技术,大大提
中国完全可能成为新的“全球IT产业中心”China is very likely to be the new“Global IT Industry Center”.有数据显示,全球前30大IT公司今年上半年的研发资金已经由去年的125亿美元缩减到119亿美元,同比减少了5％。拉开了硅谷42年...
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中国完全可能成为新的“全球IT产业中心”China is very likely to be the new“Global IT Industry Center”.有数据显示,全球前30大IT公司今年上半年的研发资金已经由去年的125亿美元缩减到119亿美元,同比减少了5％。拉开了硅谷42年来的首次削减研发经费的序幕。受美国经济滑坡等多方面因素的影响,硅谷头上“全球IT产业中心”的光环很可能在一段时间之后被取代。而在中国市场上,IT产业发展的势头正在加速。从2001年开始,全国各地都开始悄然兴建不同规模的晶圆厂,由于得到当地政府的支持,IC产业增长速度之快远远
@电子商务 随需应变 ——“IBM论坛2003”在京、沪、穗召开Electronic businesses can change as need-“IBM Forum 2003”Was hold at Beijing,Shanghai and Guangzhou “IBM论坛2003”,于三月份在北京、上海和广州相继拉开帷幕。这是...
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@电子商务 随需应变 ——“IBM论坛2003”在京、沪、穗召开Electronic businesses can change as need-“IBM Forum 2003”Was hold at Beijing,Shanghai and Guangzhou “IBM论坛2003”,于三月份在北京、上海和广州相继拉开帷幕。这是在今年 提出“引领中国客户进入‘随需应变’新时代”的承诺后,IBM将为“随需应变” 服务的技术与解决方案全面推出的一次盛会。 在去年的“IBM论坛2002”活动中,IBM作为“电子商务”的领袖,和中国 客户共同深入探讨企业在@化过程中所面临的挑战以及端到端的解决方案。同时 还要请了各界权威,围绕当前和未来的商业发展趋势,为中国客户做了精彩的阐 释。而今年,“IBM论坛2003”在去年的基础上,为客户带来全新的IT革命性理 念:“电子商务随需应变”,以及围绕这一理念的最新产品,技术和行业解决方案, 具有深刻的前瞻性和现实意义,同时也对企业规划极具导航价值。
Hot water consumption for townhouses in Johannesburg is determined with measurements over a period of 1 year. The results of two types of measurements are presented. Firstly, hot water consumption per person per day f...
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Hot water consumption for townhouses in Johannesburg is determined with measurements over a period of 1 year. The results of two types of measurements are presented. Firstly, hot water consumption per person per day for the different months of a year. Secondly, hourly hot water consumption per person per day as a function of summer weekdays, summer weekends, winter weekdays and winter weekends. (C) 1998 Elsevier Science Ltd.
Phosphorus is an element essential for life. Concerns regarding long-term security of supply and issues related to eutrophication of surface waters once released into the aquatic environment have led governments to co...
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Phosphorus is an element essential for life. Concerns regarding long-term security of supply and issues related to eutrophication of surface waters once released into the aquatic environment have led governments to consider and apply measures for reducing the use and discharge of phosphorus. Examples of source control include legislation to reduce phosphorus use in domestic detergents. This research shows that other domestic sources of phosphorus also contribute significantly to the domestic load to sewer and that overall, domestic sources dominate loads to sewage treatment works. Estimates provided here show that although the natural diet contributes 40% of the domestic phosphorus load, other potentially preventable sources contribute significantly to the estimated 44,000 tonnes of phosphorus entering UK sewage treatment works each year. In the UK, food additives are estimated to contribute 29% of the domestic load;automatic dishwashing detergents contribute 9% and potentially increasing;domestic laundry 14%, including contributions from phosphonates, but decreasing;phosphorus dosing to reduce lead levels in tap water 6%;food waste disposed of down the drain 1%;and personal care products 1%. Although UK data is presented here, it is anticipated that similar impacts would be expected for other developed economies. Consideration of alternatives to all preventable sources of phosphorus from these sources would therefore offer potentially significant reductions in phosphorus loads to sewage treatment works and hence to the aquatic environment. Combining all source control measures and applying them to their maximum extent could potentially lead to the prevention of over 22,000 tonnes-P/year entering sewage treatment works.
Accurate domestic-hot water (DHW) consumption information is useful for solar-thermal-hot-water-system designers and policy makers supporting solar-thermal-incentive programs. Conducting field studies of DHW-consumpti...
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Accurate domestic-hot water (DHW) consumption information is useful for solar-thermal-hot-water-system designers and policy makers supporting solar-thermal-incentive programs. Conducting field studies of DHW-consumption patterns is difficult and costly, and as a result, there are few studies available in the body of literature. Several DHW models exist, however these aggregate models are often dated and most fail to identify the influence of the number of occupants in the dwelling, instead relying on a standard-per-capita consumption. The standard of 60 liters/capita/day (lcd) is found to be accurate for households of 4 or more occupants, but significantly under estimates per-capita-hot-water consumption for households with 3 or fewer occupants, consequently, under estimating the energy and GHG-emissions savings of solar-DHW programs [1]. The new estimate presented here addresses these issues. This study was conducted using utility-billing data, and occupant responses from a survey of 1594 residences. The data includes annual total-water use, energy consumption, costs, and basic information about the residence and occupants. The method isolates average-oil used in water heaters and then estimates system performance to calculate the volume of hot water heated. The findings include total-water use, oil consumption for water heating, and DHW use based on occupancy for households of 1 through 6 occupants. (C) 2012 Elsevier B.V. All rights reserved.
There is a growing body of evidence available to indicate that there is often a discrepancy between the in situ measured thermal performance of a building fabric and the steady-state predicted performance of that fabr...
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There is a growing body of evidence available to indicate that there is often a discrepancy between the in situ measured thermal performance of a building fabric and the steady-state predicted performance of that fabric, even when the building fabric has been modelled based upon what was actually built. However, much of the work that has been published to date does not fully investigate the validity of the assumptions within the model and whether they fully characterise the building. To investigate this issue, a typical pre-1920's UK house is modelled in Designbuilder in order to recognise and reduce the gap between modelled and measured energy performance. A model was first built to the specifications of a measured survey of the Salford Energy House, a facility which is housed in a climate controlled chamber. Electric coheating tests were performed to calculate the building's heat transfer coefficient;a difference of 18.5% was demonstrated between the modelled and measured data, indicating a significant prediction gap'. Accurate measurements of air permeability and U-value were made in-situ;these were found to differ considerably from the standard values used in the initial model. The standard values in the model were modified to reflect these in-situ measurements, resulting in a reduction of the performance gap to 2.4%. This suggests that a better alignment between the modelling and measurement research communities could lead to more accurate models and a better understanding of performance gap issues. (C) 2017 Elsevier B.V. All rights reserved.
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