With large-scale use of kinds of motors, oilfield drilling electrical system always accompanied by serious power quality problem, including reactive current, harmonics current and grid voltage distortion, which would ...With large-scale use of kinds of motors, oilfield drilling electrical system always accompanied by serious power quality problem, including reactive current, harmonics current and grid voltage distortion, which would greatly threaten the safety and proper working of the whole system. This paper focuses on a power quality improvement project to solve these problems. A hybrid compensating scheme, including an active compensator and a passive compensator, is carried out. Because of the specificity of oilfield drilling electrical system, compensators are redesigned against features of this application background. And then the current detection point arrangement of this hybrid system is also taken into consideration to build the whole system much more effective and reliable. Now the improvement project is already implemented in application field, and the power quality of the system is greatly improved.展开更多
How is English Christmas panto community activism？ The structure of pantomime has not changed in a hundred years, but allows for local creativity to work within its framework to be both family entertainment and socia...How is English Christmas panto community activism？ The structure of pantomime has not changed in a hundred years, but allows for local creativity to work within its framework to be both family entertainment and social satire This basic structure is founded on a children＇s story like Puss ＇n ＇boots or Cinderella. The story and character types remain the same; but the community can add their own jokes and commentary to make the play relevant to themselves and their community. What is added by the community says a lot about who they are and what they care about. The company Price-Waterhouse-Coopers produces their pantomime as management training and team building while engaging the community. The Basel Swiss panto raises money for African Charities. The Maplewood, NJ panto raises money for the homeless and the Jaguar Charity panto in Birmingham performs to disadvantaged children and adults. The productions can be extravagant or threadbare, but share the same goal of raising cheer and goodwill to the benefit of the community. What is it, then, about panto that brings a community together in such civic mindedness？展开更多
University teaching and research equipment maintenance costs, rising with the rapid development of the school. Equipment as a teaching resource, should give full play to its role in the efficiency at the same time, fr...University teaching and research equipment maintenance costs, rising with the rapid development of the school. Equipment as a teaching resource, should give full play to its role in the efficiency at the same time, from quality improve equipment management, reduce material consumption, two aspects of efforts to reduce maintenance costs, reduce maintenance expenses. This article by the necessity of self- maintenance, feasibility analysis and establish a competitive mechanism, and that this is a feasible way out equipment maintenance work of vocational collejzes need to adaot to the situation.展开更多
文摘With large-scale use of kinds of motors, oilfield drilling electrical system always accompanied by serious power quality problem, including reactive current, harmonics current and grid voltage distortion, which would greatly threaten the safety and proper working of the whole system. This paper focuses on a power quality improvement project to solve these problems. A hybrid compensating scheme, including an active compensator and a passive compensator, is carried out. Because of the specificity of oilfield drilling electrical system, compensators are redesigned against features of this application background. And then the current detection point arrangement of this hybrid system is also taken into consideration to build the whole system much more effective and reliable. Now the improvement project is already implemented in application field, and the power quality of the system is greatly improved.
文摘How is English Christmas panto community activism？ The structure of pantomime has not changed in a hundred years, but allows for local creativity to work within its framework to be both family entertainment and social satire This basic structure is founded on a children＇s story like Puss ＇n ＇boots or Cinderella. The story and character types remain the same; but the community can add their own jokes and commentary to make the play relevant to themselves and their community. What is added by the community says a lot about who they are and what they care about. The company Price-Waterhouse-Coopers produces their pantomime as management training and team building while engaging the community. The Basel Swiss panto raises money for African Charities. The Maplewood, NJ panto raises money for the homeless and the Jaguar Charity panto in Birmingham performs to disadvantaged children and adults. The productions can be extravagant or threadbare, but share the same goal of raising cheer and goodwill to the benefit of the community. What is it, then, about panto that brings a community together in such civic mindedness？
文摘University teaching and research equipment maintenance costs, rising with the rapid development of the school. Equipment as a teaching resource, should give full play to its role in the efficiency at the same time, from quality improve equipment management, reduce material consumption, two aspects of efforts to reduce maintenance costs, reduce maintenance expenses. This article by the necessity of self- maintenance, feasibility analysis and establish a competitive mechanism, and that this is a feasible way out equipment maintenance work of vocational collejzes need to adaot to the situation.
