نتایج جستجو برای: level vsi

تعداد نتایج: 1081294  

1998
Stefan H. Steiner

Control charts such as X and R charts are widely used in industry to monitor quality. These charts are effective in detecting large departures from the in-control condition. Other process monitoring methods, such as Cumulative Sum (CUSUM) charts are sequential in nature as they accumulate information from previous observations. CUSUM charts are good at detecting more moderate presistent process...

Journal: :cell journal 0
zahra khodabandeh jahromi fardin amidi afruz habibi majid ebrahimi seid mohammad hossein nori mugehe aligoli sobhani

background: the aim of this study was to investigate the effects of two vitrification protocols on mouse metaphase stage ii (mii) oocytes and evaluate their effects on the expression of heat shock protein a1a (hsp a1a) and mnsod genes. materials and methods: groups of approximately 15 oocytes without cumulus complexes were collected and vitrified with 10% (v/v) ethylene glycol (eg) + 10% (v/v) ...

Journal: :Aquaculture Research 2023

Two feeding trials were conducted to evaluate the influence of dietary curcumin level on fish meal replacement with poultry by-product (PBM) in a largemouth bass (Micropterus salmoides) diet. In trial I, reference diet (R) contained 400 g/kg meal, and PBM replaced 60 80% (P16 P8). II, containing 80 (P8) served as control (C), was added at 5000 10000 mg/kg (C5 C10), respectively. Replacement sig...

Journal: :Monthly Notices of the Royal Astronomical Society 2022

ABSTRACT The vertical shear instability (VSI) is a robust phenomenon in irradiated protoplanetary discs (PPDs). majority of previous numerical simulations have focused on the turbulent properties its saturated state. However, saturation VSI manifests as large-scale coherent radially travelling inertial waves. In this paper, we study inertial-wave-disc interactions and their impact saturation. I...

2016
Anju Mohandas

1,2 Electrical and Electronics Engineering, Sree Buddha College Of Engineering Abstract—This paper highlights the performance of a five level inverter fed ac drive system. The presence of harmonics in the output voltage and current waveforms of traditional voltage source inverter (VSI) causes significant amount of energy loss. Multilevel inverters can reduce this harmonic content in the output ...

Journal: :روش های عددی در مهندسی (استقلال) 0
جعفر سلطانی و محمد فلاح j. soltani and m. fallah

in this paper, computer simulation of a three-phase synchronous motor drive is described. this drive/system is supplied with a new type of pulse-width modulated voltage source inverter (pwm vsi) whose amplitude of the first harmonic, compared to a conventional sinusoidal pwm vsi, is increased by about 17% and whose amplitude of higher harmonics is also reduced inversely proportional to their or...

Journal: :Resources Conservation and Recycling 2021

The increasing generation of solid waste, varying waste compositions, and inefficient recovery processes have limited the performance traditional approaches. It is urgent to collect a virtual special issue (VSI) that consolidates research on efficient models better treatment technologies break up current system limitations. Recently, Solid Waste Management (SWM) strategies focus reuse recycling...

Journal: :ژورنال بین المللی پژوهش عملیاتی 0
m. torabian f. nazari aliabadi

the hotelling's  control chart, is the most widely used multivariate procedure for monitoring  two or more related quality characteristics, but it’s power lacks the desired performance in detecting small to moderate shifts. recently, the variable sampling intervals (vsi) control scheme in which the length of successive sampling intervals is determined upon the preceding values has been pro...

2013
T. Shanthi

This paper proposes an artificialintelligence-based solution to interface photovoltaic (PV) array with the three phase ac load and to deliver maximum power to the load. The maximum power delivery to the load is achieved by MPPT controller which employs adaptive neuro-fuzzy inference system (ANFIS). The proposed ANFIS-based MPPT offers an extremely fast dynamic response with great accuracy. The ...

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