http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
매립지에서 벤토나이트와 blast-furnace 슬래그 혼합물에 의한 점토성 불투수층에 관한 구조물의 입증실험
( Isamu Norimatsu ),( Fuminori Hirosue ),( Shigeo Kobayashi ),( Ikuo Fujii ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2
수명이 얼마 남지 않은 구 매립지의 대안으로, 새로운 매립지를 설치하는 것은 종종 지역 주민들과 문제를 야기할 수 있다. 환경 생태나 업무 활동에서 장애물이 항상 쉽게 극복되는 것은 아니다. 매립지의 안전성에 대한 사람들의 불신에서 기인하기 때문에, 영구적인 안전성이 보장되기 위한 더 나은 매립지에서의 발달된 기술이 시급하다. 차수층을 활용하는 매립지를 건설한 때, 차수층 아래에, 노출된 토양은 분쇄된 blast-furnace 슬래그와 벤토나이트를 혼합한 것으로 환경에 오염물질이 노출되지 않도록 차수층으로써 역할을 하도록 경화시키기 위해 놓아둔다. 이처럼 매립지에는 고도로 안전한 새로운 기술이 개발되고 입증되고 있다. Establishing new disposal sites, as an alternative for the old ones with the life-long remained short, is often troublesome with local residents. Obstacles in eco-living and business activities are not always easily overcome. Due to recent unreliable feeling of people on the safety of disposal sites, it is urgently required to develop technology for better disposal sites in order to ensure their permanent safety. During construction of a disposal site with utilizing water-proof sheets, below the sheet, the exposed soil is mixed with pulverized blast-furnace slag and bentonite, then left for hardening to serve as a water-proof soil layer, which can stop propagating contamination to the outside environment. Such a new technology for highly safety disposal sites has been developed and proven.
( Isamu Norimatsu ),( Fuminori Hirosue ),( Shigeo Kobayashi ),( Ikuo Fujii ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1
Establishing new disposal sites, as an alternative for the old ones with the life-long remained short, is often troublesome with local residents. Obstacles in eco-living and business activities are not always easily overcome. Due to recent unreliable feeling of people on the safety of disposal sites, it is urgently required to develop technology for better disposal sites in order to ensure their permanent safety. During construction of a disposal site with utilizing water-proof sheets, below the sheet, the exposed soil is mixed with pulverized blast-furnace slag and bentonite, then left for hardening to serve as a water-proof soil layer, which can stop propagating contamination to the outside environment. Such a new technology for highly safety disposal sites has been developed and proven.
A PWM Motor Speed Control System based on the Dual-Loop PLL
Hidekazu Machida,Michinobu Kambara,Kohta Tanaka,Taisuke Yamochi,Fuminori Kobayashi 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
PLL motor speed control systems can completely reject speed error and steady-state phase error for constantspeed input signals. However, it is not usually applied to systems with inputs including acceleration, because they have poor tracking speed and strange pull-in behavior. In the field of radio communication, “dual-loop PLL” is very effective for such signals. It can not only enable high-speed tracking, but also cancel phase error. This article shows that the principle can be applied, with some devices, to motor speed control, and a prototype implementation using PWM is described. Two supplemental techniques, called “active feedforward” and “active limiter”, are also incorporated, to achieve faster tracking and speed limitation. The scheme was implemented by programming an FPGA, and satisfiable results were obtained.