With proliferation of electric appliances, residential electricity consumption, in particular the air conditioning load becomes more and more important and shares higher and higher percentage in total consumption in l...With proliferation of electric appliances, residential electricity consumption, in particular the air conditioning load becomes more and more important and shares higher and higher percentage in total consumption in large cities like Shanghai. The paper reports in detail the survey on characteristics of residential electric consumption, in particular the air conditioning consumption. To optimize power system operation and expand power market, the paper concludes that power industry must learn to investigate, open up and adapt itself to power market economy.展开更多
Started with 100 workers and staff, the Guangdong based Huabao Electrical Appliances Factory has now made 500 products in 50 categories. It boasts 2,000 staff and fixed assets worth RMB80 million. In 1988, the factory...Started with 100 workers and staff, the Guangdong based Huabao Electrical Appliances Factory has now made 500 products in 50 categories. It boasts 2,000 staff and fixed assets worth RMB80 million. In 1988, the factory was cited as an advanced enterprise in earning foreign exchange among light industries nationwide, by the Ministry of Light Industry; and Huabao electrical appliances were named high quality products in an appraisal sponsored by the Ministry of Light Industry.展开更多
China’s largest electronic piano specialized production factory—the Shanghai Huaxin Electronics and Electrical Appliances General Factory—developed and grew up from a small loss-incurring neighborhood factory a dec...China’s largest electronic piano specialized production factory—the Shanghai Huaxin Electronics and Electrical Appliances General Factory—developed and grew up from a small loss-incurring neighborhood factory a decade ago. At present, the factory’s annual output value has exceeded RMB100 million for three years running, and sales are increasing at a rate of 30 percent per year.展开更多
The purpose of this study is to use magnetic field of 50/60 Hz up to 0.2 mT for energy source. This paper focuses on magnetic energy harvesting from electrical appliances which can be also used for power consumption m...The purpose of this study is to use magnetic field of 50/60 Hz up to 0.2 mT for energy source. This paper focuses on magnetic energy harvesting from electrical appliances which can be also used for power consumption monitoring. The magnetic energy harvesting device consists of an energy harvesting module, Cockcroft-Walton circuit and storage capacitor. First of all, typical magnetic fields around several electrical appliances are investigated. In order to harvest 10 mJ energy, the shape of magnetic flux concentration flange in energy harvesting module and number of steps in Cockcroft-Walton circuit are considered. From experimental results, magnetic energy harvesting of 17 mJ from a refrigerator is successfully demonstrated.展开更多
Various forecasting tools exist for planners of national networks that are based on historical data. These are used to make decisions at the national level to meet a countries commitment to CO2 emission targets. Howev...Various forecasting tools exist for planners of national networks that are based on historical data. These are used to make decisions at the national level to meet a countries commitment to CO2 emission targets. However, at a local community level, the guidance is not easily understood by planners. This work presents for the first time a methodology for the generation of realistic domestic electricity load profiles for different types of UK households for small communities. The work is based on a limited set of data, and has been compared with measurement. Daily load profiles from individual dwelling to community can be predicted using this method. Results have been presented, and discussed.展开更多
Forecasting orders accurately plays a crucial role for household electric appliance (HEA) enterprises keeping low inventory level. In order to reduce the influence of bullwhip effect, sales data are applied to forecas...Forecasting orders accurately plays a crucial role for household electric appliance (HEA) enterprises keeping low inventory level. In order to reduce the influence of bullwhip effect, sales data are applied to forecast orders of the next period instead of ordering data. Mobile agent is applied to achieve the sales data from retailers in the data preparation. And the converting approach from sales data of retailers to prediction data is proposed. Autoregressive and moving average (ARMA) model is introduced to forecast orders and a comparison amongst final prediction error (FPE), Akaike information criterion(AIC), Bayes information criterion(BIC) and Akaike's corrected information criterion(AICC) criterion is shown. The sample test verifies the superiority of AICC; therefore it is applied to identify ARMA order. Forecasting architecture is established and then the prototype system is tested, at last a case shows the orders prediction of the next quarter and verifies the effectiveness of the proposed method.展开更多
The Hangzhou Zhenqi Electrical Appliance Co. Ltd. (a Sino-American Joint Venture) is one of the largest specialized lamp production enterprises in China, producing decorative lamp products of a full variety with the m...The Hangzhou Zhenqi Electrical Appliance Co. Ltd. (a Sino-American Joint Venture) is one of the largest specialized lamp production enterprises in China, producing decorative lamp products of a full variety with the most advanced technology. The Company is located in Hangzhou Qianjiang Technological Development Zone, and covers an area of 33,000 square metres. It is a specialized decorative lamp production enterprise integrating design,展开更多
As we know, PACT (President's Advisory Committee on Future Technology) members of the IEC (International Electrotechnical Commission) used to be CTOs of large companies from only a few developed countries such as ...As we know, PACT (President's Advisory Committee on Future Technology) members of the IEC (International Electrotechnical Commission) used to be CTOs of large companies from only a few developed countries such as the United States, Germany and Japan. However, Haier Group has broken the ice since it entered the IEC/PACT commission in June 2005, lifting the curtain on international standardization of our national enterprises. And now, Haier is hosting the IEC/PACT annual conference in November 2007. Could you introduce it in detail?展开更多
Year 2006 is the year marking the 100th anniversary of the founding of International Electrotechnical Commission (IEC).IEC has kept close ties with international electrical and electronic products and their manufa... Year 2006 is the year marking the 100th anniversary of the founding of International Electrotechnical Commission (IEC).IEC has kept close ties with international electrical and electronic products and their manufactures for nearly 100 years. As an integral part of electrical and electronic product portfolio, Household electrical product development has also been directly influenced by IEC.……展开更多
A second generation solar adaptive optics（AO） system is built and installed at the 1-m New Vacuum Solar Telescope（NVST） of the Fuxian Solar Observatory（FSO） in 2015. The AO high-order correction system consists ...A second generation solar adaptive optics（AO） system is built and installed at the 1-m New Vacuum Solar Telescope（NVST） of the Fuxian Solar Observatory（FSO） in 2015. The AO high-order correction system consists of a 151-element deformable mirror（DM）, a correlating Shack-Hartmann（SH） wavefront sensor（WFS）with a 3500 Hz frame rate, and a real-time controller. The system saw first light on Mar. 16, 2015. The simultaneous high-resolution photosphere and chromosphere images with AO are obtained. The on-sky observational results show that the contrast and resolution of the images are apparently improved after the wavefront correction by AO.展开更多
Preparation and characterization of a liquid level sensor based on macro-bending coupling of fibers are demonstrated in this Letter. The sensitive component can be obtained through a twisting and twining structure of ...Preparation and characterization of a liquid level sensor based on macro-bending coupling of fibers are demonstrated in this Letter. The sensitive component can be obtained through a twisting and twining structure of transparent cladding plastic fibers. The difference in light power originating from the surrounding media in the fibers is tested. The light power loss for different tested media and the fiber bending magnitude are investigated. The sensing measurements show that the coupling light power in the passive fiber decreases in accordance with increasing liquid level, whereas it exhibits a steady tendency in the case of the active fiber.展开更多
文摘With proliferation of electric appliances, residential electricity consumption, in particular the air conditioning load becomes more and more important and shares higher and higher percentage in total consumption in large cities like Shanghai. The paper reports in detail the survey on characteristics of residential electric consumption, in particular the air conditioning consumption. To optimize power system operation and expand power market, the paper concludes that power industry must learn to investigate, open up and adapt itself to power market economy.
文摘Started with 100 workers and staff, the Guangdong based Huabao Electrical Appliances Factory has now made 500 products in 50 categories. It boasts 2,000 staff and fixed assets worth RMB80 million. In 1988, the factory was cited as an advanced enterprise in earning foreign exchange among light industries nationwide, by the Ministry of Light Industry; and Huabao electrical appliances were named high quality products in an appraisal sponsored by the Ministry of Light Industry.
文摘China’s largest electronic piano specialized production factory—the Shanghai Huaxin Electronics and Electrical Appliances General Factory—developed and grew up from a small loss-incurring neighborhood factory a decade ago. At present, the factory’s annual output value has exceeded RMB100 million for three years running, and sales are increasing at a rate of 30 percent per year.
文摘The purpose of this study is to use magnetic field of 50/60 Hz up to 0.2 mT for energy source. This paper focuses on magnetic energy harvesting from electrical appliances which can be also used for power consumption monitoring. The magnetic energy harvesting device consists of an energy harvesting module, Cockcroft-Walton circuit and storage capacitor. First of all, typical magnetic fields around several electrical appliances are investigated. In order to harvest 10 mJ energy, the shape of magnetic flux concentration flange in energy harvesting module and number of steps in Cockcroft-Walton circuit are considered. From experimental results, magnetic energy harvesting of 17 mJ from a refrigerator is successfully demonstrated.
文摘Various forecasting tools exist for planners of national networks that are based on historical data. These are used to make decisions at the national level to meet a countries commitment to CO2 emission targets. However, at a local community level, the guidance is not easily understood by planners. This work presents for the first time a methodology for the generation of realistic domestic electricity load profiles for different types of UK households for small communities. The work is based on a limited set of data, and has been compared with measurement. Daily load profiles from individual dwelling to community can be predicted using this method. Results have been presented, and discussed.
基金Hubei International Cooperation Projects,China(No.2007CA008)
文摘Forecasting orders accurately plays a crucial role for household electric appliance (HEA) enterprises keeping low inventory level. In order to reduce the influence of bullwhip effect, sales data are applied to forecast orders of the next period instead of ordering data. Mobile agent is applied to achieve the sales data from retailers in the data preparation. And the converting approach from sales data of retailers to prediction data is proposed. Autoregressive and moving average (ARMA) model is introduced to forecast orders and a comparison amongst final prediction error (FPE), Akaike information criterion(AIC), Bayes information criterion(BIC) and Akaike's corrected information criterion(AICC) criterion is shown. The sample test verifies the superiority of AICC; therefore it is applied to identify ARMA order. Forecasting architecture is established and then the prototype system is tested, at last a case shows the orders prediction of the next quarter and verifies the effectiveness of the proposed method.
文摘The Hangzhou Zhenqi Electrical Appliance Co. Ltd. (a Sino-American Joint Venture) is one of the largest specialized lamp production enterprises in China, producing decorative lamp products of a full variety with the most advanced technology. The Company is located in Hangzhou Qianjiang Technological Development Zone, and covers an area of 33,000 square metres. It is a specialized decorative lamp production enterprise integrating design,
文摘As we know, PACT (President's Advisory Committee on Future Technology) members of the IEC (International Electrotechnical Commission) used to be CTOs of large companies from only a few developed countries such as the United States, Germany and Japan. However, Haier Group has broken the ice since it entered the IEC/PACT commission in June 2005, lifting the curtain on international standardization of our national enterprises. And now, Haier is hosting the IEC/PACT annual conference in November 2007. Could you introduce it in detail?
文摘 Year 2006 is the year marking the 100th anniversary of the founding of International Electrotechnical Commission (IEC).IEC has kept close ties with international electrical and electronic products and their manufactures for nearly 100 years. As an integral part of electrical and electronic product portfolio, Household electrical product development has also been directly influenced by IEC.……
基金supported by the National Natural Science Foundation of China(Grant No.11178004)
文摘A second generation solar adaptive optics（AO） system is built and installed at the 1-m New Vacuum Solar Telescope（NVST） of the Fuxian Solar Observatory（FSO） in 2015. The AO high-order correction system consists of a 151-element deformable mirror（DM）, a correlating Shack-Hartmann（SH） wavefront sensor（WFS）with a 3500 Hz frame rate, and a real-time controller. The system saw first light on Mar. 16, 2015. The simultaneous high-resolution photosphere and chromosphere images with AO are obtained. The on-sky observational results show that the contrast and resolution of the images are apparently improved after the wavefront correction by AO.
基金supported by the Major State Basic Research Development Program of China(Grant No.2012CB723404)the National Natural Science Foundation of China(Nos.51275491 and 61275166)
文摘Preparation and characterization of a liquid level sensor based on macro-bending coupling of fibers are demonstrated in this Letter. The sensitive component can be obtained through a twisting and twining structure of transparent cladding plastic fibers. The difference in light power originating from the surrounding media in the fibers is tested. The light power loss for different tested media and the fiber bending magnitude are investigated. The sensing measurements show that the coupling light power in the passive fiber decreases in accordance with increasing liquid level, whereas it exhibits a steady tendency in the case of the active fiber.
