• Chauvet, Guillaume 2015-01-01 Multistage sampling is commonly used for household surveys when there exists no sampling frame, or when the population is scattered over a wide area. Multistage sampling usually introduces a complex dependence in the selection of the final units, which makes asymptotic results quite difficult to prove. In this work, we consider multistage sampling with simple random without replacement sampling at the first stage, and with an arbitrary sampling design for further stages. We consider coupling. • Herman, Connie C.

2013-01-01 The Savannah River National Laboratory (SRNL) has evaluated the existing waste feed qualification strategy for the Hanford Tank Waste Treatment and Immobilization Plant (WTP) based on experience from the Savannah River Site (SRS) Defense Waste Processing Facility (DWPF) waste qualification program. The current waste qualification programs for each of the sites are discussed in the report to provide a baseline for comparison. Recommendations on strategies are then provided that could be implemented at Hanford based on the successful Macrobatch qualification strategy utilized at SRS to reduce the risk of processing upsets or the production of a staged waste campaign that does not meet the processing requirements of the WTP. Considerations included the baseline WTP process, as well as options involving Direct High Level Waste (HLW) and Low Activity Waste (LAW) processing, and the potential use of a Tank Waste Characterization and Staging Facility (TWCSF). Delphi 7 klyuch aktivacii. The main objectives of the Hanford waste feed qualification program are to demonstrate compliance with the Waste Acceptance Criteria (WAC), determine waste processability, and demonstrate unit operations at a laboratory scale.

( Received: November 28, 2017 – Accepted in Revised Form: March 09, 2018 ) Abstract Fast andaccurate transient response is the main requirement in electric machineposition control. Conventional cascade control structure has sluggish responsedue to the limitation of inner control loop bandwidth. In this paper, in order to decreasethe Permanent Magnet Synchronous Motor (PMSM) transient response time it can beused reference model using feed-forward signals. In this structure,feed-forward signals generated by simplified model of permanent magnetsynchronous motor. In this paper, feed-forward signals generated are emplyed inmodel predictive control; which are combined with conventional cascade controlstructure.

Using this approach, a fast transient response and satisfactorytracking ability will be guaranteed. The proposed method is compared with themodel reference method and conventional cascade structure. Simulation results showeda good performance of proposed method related to both methods. Verification ofsimulation results were carried out by experimental results Keywords Position Control; Permanent Magnet Motor; Model Predictive Control; Transient Response چکیده سرعت و دقتپاسخ گذرا مهمترین نیاز یک سیستم کنترل موقعیت ماشین الکتریکی است. ساختار مرسومکنترل آبشاری به علت دارا بودن پهنای باند نامناسب حلقه های داخلی دارای سرعت پاسخضعیفی است. در این مقاله، برای کاهش سرعت پاسخ موتور مغناطیس دائم از مدل مرجع بااستفاده از سیگنالهای پیش خور استفاده شده است. در این ساختار سیگنالهای پیش خوربوسیله مدل مرجع ساده شده موتور مغناطیس دائم تولید می شوند.