BSI, the business standards company today announced it has been appointed as a notified body by the Gulf Cooperation Council (GCC) and GuLf Standards Organization (GSO) to certify products under the Gulf Mark (G-Mark)...BSI, the business standards company today announced it has been appointed as a notified body by the Gulf Cooperation Council (GCC) and GuLf Standards Organization (GSO) to certify products under the Gulf Mark (G-Mark) regulati ons.展开更多
Chronicle for China-UK Standards CooperationBSI and the Standardization Administration of China （SAC） have developed an excellent relationship over the past decade. It began with the signing of a Joint Cooperation A...Chronicle for China-UK Standards CooperationBSI and the Standardization Administration of China （SAC） have developed an excellent relationship over the past decade. It began with the signing of a Joint Cooperation Agreement （JCA） in 2004 which set out the framework for cooperation activities. It included annual bilateral meetings joint events, information exchange and staff secondments展开更多
What is the story so far？Developing standards is not a new activity,Standards-setting organizations such as BSI and the US-based standards developer ASTM are well over 100 years old.
The efficiency and mechanism of an active control device ＂＇Spark Jet＂ and its application in shock-induced separation control are studied using large-eddy simulation in this paper. The base flow is the interaction ...The efficiency and mechanism of an active control device ＂＇Spark Jet＂ and its application in shock-induced separation control are studied using large-eddy simulation in this paper. The base flow is the interaction of an oblique shock-wave generated by 8° wedge and a spatially-developing Ma = 2.3 turbulent boundary layer. The Reynolds number based on the incoming flow property and the boundary layer displacement thickness at the impinging point without shock-wave is 20000. The detailed numerical approaches were presented. The inflow turbulence was generated using the digital filter method to avoid artificial temporal or streamwise periodicity. The , merical results including velocity profile, Reynolds stress profile, skin friction, and wall pressure were sys- tematically validated against the available wind tunnel particle image velocimetry （PIV） measure- ments of the same flow condition. Further study on the control of flow separation due to the strong shock-viscous interaction using an active control actuator ＂＇Spark Jet＇＂ was conducted. The single-pulsed characteristic of the device was obtained and compared with the experiment. Both instantaneous and time-averaged flow fields have shown that the jet flow issuing from the actuator cavity enhances the flow mixing inside the boundary layer, making the boundary layer more resis- tant to flow separation. Skin friction coefficient distribution shows that the separation bubble length is reduced by about 35% with control exerted.展开更多
Many studies suggest that EEG signals provide enough information for the detection of human emotions with feature based classification methods. However, very few studies have reported a classification method that reli...Many studies suggest that EEG signals provide enough information for the detection of human emotions with feature based classification methods. However, very few studies have reported a classification method that reliably works for individual participants (classification accuracy well over 90%). Further, a necessary condition for real life applications is a method that allows, irrespective of the immense individual difference among participants, to have minimal variance over the individual classification accuracy. We conducted offline computer aided emotion classification experiments using strict experimental controls. We analyzed EEG data collected from nine participants using validated film clips to induce four different emotional states (amused, disgusted, sad and neutral). The classification rate was evaluated using both unsupervised and supervised learning algorithms (in total seven “state of the art” algorithms were tested). The largest classification accuracy was computed by means of Support Vector Machine. Accuracy rate was on average 97.2%. The experimental protocol effectiveness was further supported by very small variance among individual participants’ classification accuracy (within interval: 96.7%, 98.3%). Classification accuracy evaluated on reduced number of electrodes suggested, consistently with psychological constructionist approaches, that we were able to classify emotions considering cortical activity from areas involved in emotion representation. The experimental protocol therefore appeared to be a key factor to improve the classification outcome by means of data quality improvements.展开更多
This paper introduces a novel application of bionic engineering： a bionic musical instrument using Physarum polycephalum. Physarum polycephalum is a huge single cell with thousands of nuclei, which behaves like a gia...This paper introduces a novel application of bionic engineering： a bionic musical instrument using Physarum polycephalum. Physarum polycephalum is a huge single cell with thousands of nuclei, which behaves like a giant amoeba. During its foraging behavior this plasmodium produces electrical activity corresponding to different physiological states. We developed a method to render sounds from such electrical activity and thus represent spatio-temporal behavior of slime mould in a form apprehended auditorily. The electrical activity is captured by various electrodes placed on a Petri dish containing the cultured slime mold. Sounds are synthesized by a bank of parallel sinusoidal oscillators connected to the electrodes. Each electrode is responsible for one partial of the spectrum of the resulting sound. The behavior of the slime mould can be controlled to produce different timbres.展开更多
业务流程优化(Business Process Improvement,简称BPI)并不是一个新名词,很多企业都已经认识到业务流程的重要性,认识到业务流程优化是提升企业竞争力、增强内部运营管理能力的一个有效手段,并将业务流程的管理和优化当作日常运营管理...业务流程优化(Business Process Improvement,简称BPI)并不是一个新名词,很多企业都已经认识到业务流程的重要性,认识到业务流程优化是提升企业竞争力、增强内部运营管理能力的一个有效手段,并将业务流程的管理和优化当作日常运营管理的一个重点。但是。展开更多
What is an asset?In recent years,the concept of asset management has become much more broadly understood.Previously seen by many as limited to the fi nancial sector,today it is acknowledged that coherent,whole organiz...What is an asset?In recent years,the concept of asset management has become much more broadly understood.Previously seen by many as limited to the fi nancial sector,today it is acknowledged that coherent,whole organization asset management is key to sustainable success for organizations operating in a world where resources are fi nite and economic uncertainty is the norm.展开更多
Introduction The role of standards to support innovation has been recognized for a number of years： the right standard, developed at the right time is an enabler of innovation, a supporter of technology and a key ins...Introduction The role of standards to support innovation has been recognized for a number of years： the right standard, developed at the right time is an enabler of innovation, a supporter of technology and a key instrument of market access.展开更多
信息系统的使用提高了组织信息处理和业务运行的效率,正是由于信息系统的广泛使用,人们可以得到方便快捷的服务。这些信息系统一旦因为安全问题不能正常支持组织的业务,整个组织的业务必然会因此受到影响,从而造成利益的损失。由于企业...信息系统的使用提高了组织信息处理和业务运行的效率,正是由于信息系统的广泛使用,人们可以得到方便快捷的服务。这些信息系统一旦因为安全问题不能正常支持组织的业务,整个组织的业务必然会因此受到影响,从而造成利益的损失。由于企业对信息系统依赖度的逐步上升,特别是在金融、电力、交通等行业中,信息系统的使用已经到了关系企业存亡的程度,这些信息系统一旦发生故障导致业务中断,其所造成的损失是难以估量的。根据市场调研公司Strategic Research Corp的研究报告显示,证券业的业务每停顿1小时,平均损失将达到650万美元;ATM系统中断1小时,平均损失为1.45万美元;而行业的信息系统中断,平均每小时则高达8.4万美元。正因为业务连续性管理对组织的业务和信息安全如此重要,一旦发生业务中断所造成的损失又如此巨大,使得对业务连续性的关注已经成为信息安全领域关注的一大焦点,但如何来实施业务连续性管理方案,如何保证业务连续性管理方案的成功实施,成为客户面临的挑战。展开更多
文摘BSI, the business standards company today announced it has been appointed as a notified body by the Gulf Cooperation Council (GCC) and GuLf Standards Organization (GSO) to certify products under the Gulf Mark (G-Mark) regulati ons.
文摘Chronicle for China-UK Standards CooperationBSI and the Standardization Administration of China （SAC） have developed an excellent relationship over the past decade. It began with the signing of a Joint Cooperation Agreement （JCA） in 2004 which set out the framework for cooperation activities. It included annual bilateral meetings joint events, information exchange and staff secondments
文摘What is the story so far？Developing standards is not a new activity,Standards-setting organizations such as BSI and the US-based standards developer ASTM are well over 100 years old.
基金supported by the National Natural Science Foundation of China(Nos.11302012,51420105008,51476004,11572025 and 51136003)the National Basic Research Program of China(No.2012CB720205)The computational time for the present study was provided by the UK Turbulence Consortium(EPSRC grant EP/L000261/1)
文摘The efficiency and mechanism of an active control device ＂＇Spark Jet＂ and its application in shock-induced separation control are studied using large-eddy simulation in this paper. The base flow is the interaction of an oblique shock-wave generated by 8° wedge and a spatially-developing Ma = 2.3 turbulent boundary layer. The Reynolds number based on the incoming flow property and the boundary layer displacement thickness at the impinging point without shock-wave is 20000. The detailed numerical approaches were presented. The inflow turbulence was generated using the digital filter method to avoid artificial temporal or streamwise periodicity. The , merical results including velocity profile, Reynolds stress profile, skin friction, and wall pressure were sys- tematically validated against the available wind tunnel particle image velocimetry （PIV） measure- ments of the same flow condition. Further study on the control of flow separation due to the strong shock-viscous interaction using an active control actuator ＂＇Spark Jet＇＂ was conducted. The single-pulsed characteristic of the device was obtained and compared with the experiment. Both instantaneous and time-averaged flow fields have shown that the jet flow issuing from the actuator cavity enhances the flow mixing inside the boundary layer, making the boundary layer more resis- tant to flow separation. Skin friction coefficient distribution shows that the separation bubble length is reduced by about 35% with control exerted.
文摘Many studies suggest that EEG signals provide enough information for the detection of human emotions with feature based classification methods. However, very few studies have reported a classification method that reliably works for individual participants (classification accuracy well over 90%). Further, a necessary condition for real life applications is a method that allows, irrespective of the immense individual difference among participants, to have minimal variance over the individual classification accuracy. We conducted offline computer aided emotion classification experiments using strict experimental controls. We analyzed EEG data collected from nine participants using validated film clips to induce four different emotional states (amused, disgusted, sad and neutral). The classification rate was evaluated using both unsupervised and supervised learning algorithms (in total seven “state of the art” algorithms were tested). The largest classification accuracy was computed by means of Support Vector Machine. Accuracy rate was on average 97.2%. The experimental protocol effectiveness was further supported by very small variance among individual participants’ classification accuracy (within interval: 96.7%, 98.3%). Classification accuracy evaluated on reduced number of electrodes suggested, consistently with psychological constructionist approaches, that we were able to classify emotions considering cortical activity from areas involved in emotion representation. The experimental protocol therefore appeared to be a key factor to improve the classification outcome by means of data quality improvements.
文摘This paper introduces a novel application of bionic engineering： a bionic musical instrument using Physarum polycephalum. Physarum polycephalum is a huge single cell with thousands of nuclei, which behaves like a giant amoeba. During its foraging behavior this plasmodium produces electrical activity corresponding to different physiological states. We developed a method to render sounds from such electrical activity and thus represent spatio-temporal behavior of slime mould in a form apprehended auditorily. The electrical activity is captured by various electrodes placed on a Petri dish containing the cultured slime mold. Sounds are synthesized by a bank of parallel sinusoidal oscillators connected to the electrodes. Each electrode is responsible for one partial of the spectrum of the resulting sound. The behavior of the slime mould can be controlled to produce different timbres.
文摘What is an asset?In recent years,the concept of asset management has become much more broadly understood.Previously seen by many as limited to the fi nancial sector,today it is acknowledged that coherent,whole organization asset management is key to sustainable success for organizations operating in a world where resources are fi nite and economic uncertainty is the norm.
文摘Introduction The role of standards to support innovation has been recognized for a number of years： the right standard, developed at the right time is an enabler of innovation, a supporter of technology and a key instrument of market access.
文摘信息系统的使用提高了组织信息处理和业务运行的效率,正是由于信息系统的广泛使用,人们可以得到方便快捷的服务。这些信息系统一旦因为安全问题不能正常支持组织的业务,整个组织的业务必然会因此受到影响,从而造成利益的损失。由于企业对信息系统依赖度的逐步上升,特别是在金融、电力、交通等行业中,信息系统的使用已经到了关系企业存亡的程度,这些信息系统一旦发生故障导致业务中断,其所造成的损失是难以估量的。根据市场调研公司Strategic Research Corp的研究报告显示,证券业的业务每停顿1小时,平均损失将达到650万美元;ATM系统中断1小时,平均损失为1.45万美元;而行业的信息系统中断,平均每小时则高达8.4万美元。正因为业务连续性管理对组织的业务和信息安全如此重要,一旦发生业务中断所造成的损失又如此巨大,使得对业务连续性的关注已经成为信息安全领域关注的一大焦点,但如何来实施业务连续性管理方案,如何保证业务连续性管理方案的成功实施,成为客户面临的挑战。
