نتایج جستجو برای: stabilizer control

تعداد نتایج: 1333772  

Journal: :Annals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia 2005
Sakura Kinjo Joho Tokumine Kazuhiro Sugahara Manabu Kakinohana Kiyoshi Iha Hideyo Matsuda Mitsuru Akasaki Satoshi Yamashiro

We have experienced three rare cases of hemodynamic deterioration and transient mitral regurgitation (MR) induced by a suction-type tissue stabilizer during the left internal thoracic artery (LITA)-to-LAD (left anterior descending) coronary artery anastomosis. Transesophageal echocardiogram (TEE) showed new or worsening MR during the placement of a tissue stabilizer. In all three cases, the pos...

Journal: :Molecules 2012
Mona M Fahmy Riham R Mohamed Nadia A Mohamed

Biologically active N-benzoyl-4-(N-maleimido)-phenylhydrazide (BMPH) was synthesized and its structure was confirmed by elemental analysis and various spectral tools. It was examined as a thermal stabilizer and co-stabilizer for rigid poly (vinyl chloride) at 180 °C in air. Blending BMPH with reference samples in different ratios greatly lengthens the thermal stability value and improves the ex...

Journal: :The Journal of biological chemistry 1999
H Torigoe A Ferdous H Watanabe T Akaike A Maruyama

Extreme instability of pyrimidine motif triplex DNA at physiological pH severely limits its use for artificial control of gene expression in vivo. Stabilization of the pyrimidine motif triplex at physiological pH is therefore of great importance in improving its therapeutic potential. To this end, isothermal titration calorimetry interaction analysis system and electrophoretic mobility shift as...

2013
Kevin C. Young Robin Blume-Kohout Daniel A. Lidar

Analog models of quantum information processing, such as adiabatic quantum computation and analog quantum simulation, require the ability to subject a system to precisely specified Hamiltonians. Unfortunately, the hardware used to implement these Hamiltonians will be imperfect and limited in its precision. Even small perturbations and imprecisions can have profound effects on the nature of the ...

Journal: :journal of agricultural science and technology 2013
e. mahdian r. karazhian

current interests towards lowering fat content in food products and producing healthier and safer foods, have convinced ice cream manufacturers to substitute milk fat in ice cream with either carbohydrate or protein based fat replacers. in the present work, reduced-fat ice cream (5% fat) was produced using milk protein concentrate (65%) and inulin as fat replacers (0, 2 and 4%) as well as two t...

2002
Joseph Leung David J. Hill Yixin Ni

This paper explores the use of a Unified Power Flow Controller (UPFC) for global power system control. Coordinated control schemes are assigned to the UPFC, Power System Stabilizer (PSS) and generator excitation to maintain transient stability and voltage stability following a disturbance. The extension to use of UPFC in damping inter-area oscillation is also considered. Under the proposed coor...

2013
M. Kahl T. Leibfried

This paper presents an integral control strategy which integrates data from phase measurement units to damp inter-area oscillations. The proposed decentralized model predictive control method has one control unit for each controllable device (Generators, FACTS, HVDC) and coordinates their behavior after a fault. Each unit is designed by applying a systematic controller synthesis. The decentrali...

2012
Mahendra Kumar Rajeev Gupta

The objective of the Power System Stabilizer (PSS) is added to excitation system to enhance the damping during low frequency oscillations. This paper presents a comparison study of Simulated Annealing and fast output sampling based power system stabilizer (PSS) for stability enhancement. Conventional Power system stabilizers (CPSSs) are designed with the phase compensation technique in the freq...

Journal: :CoRR 2015
Richard Kueng David Gross

A complex projective t-design is a configuration of vectors which is “evenly distributed” on a sphere in the sense that sampling uniformly from it reproduces the moments of Haar measure up to order 2t. We show that the set of all n-qubit stabilizer states forms a complex projective 3-design in dimension 2n. Stabilizer states had previously only been known to constitute 2-designs. The main techn...

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