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Tra cứu từ điển Anh Việt online Nghĩa của từ efficiency trong tiếng Việt efficiency là gì Tra cứu từ điển trực tuyến o hiệu quả hiệu suất năng suất § air standard cycle efficiency hiệu suất trung bình của sự tuần hoàn không khí § average efficiency công suất
· Page 1 Screening performance measured as either the product yielded in the operation or the quality of product yielded is affected by many factors In the context of equipment selection screening machines are evaluated on their ability to optimize product quality and screening efficiency
The dependence of the screening efficiency on the screen s length is shown in Fig 4 The adopted parameters were the following the vibrations amplitude is Y = 4 mm the screen s inclination angle is α = 25° and the aperture size a = d Fig 4 Influence of the screen s length on the screening efficiency
·Here to determine which cellular factors affect PE efficiency we carry out a focused genetic screen targeting 32 DNA repair factors spanning all reported repair pathways
·The absorption and conversion efficiency of the screen affect the intensity factor Film screen combination typically used for chest radiography has a limiting resolution of 6 line pairs per mm which is two times better than a typical digital radiography of 3 line pairs per mm 6 Layers base reflecting layer/absorptive layer
·There are several primary factors that affect the screening process such as feed rate aperture ratio shape of the particle particle size distribution PSD and type of vibratory motion Subasinghe et al 1989 Soldinger 2000 DEM simulations have been used recently to study screen efficiency Several studies have been conducted
·Current screen capacity calculations do not take into consideration enough of the factors affecting screen efficiency The old formulas were designed to keep calculations short and manageable for manual calculation The common use of computers in today s world makes it possible to do more complex screen capacity calculations in much shorter time
·Download Citation Some factors affecting sieving performance and efficiency Sieving or screening has been the oldest yet most important unit operation for industrial separation of solid
·The objective of this work is the study of some basic factors affecting the performance of the horizontal vibrating screens with the emphasis based on the determination of the most effective
·The optimum screen efficiency of 97% is obtained at the screen angle of 9 o vibration amplitude of cm/s a blain value of 3000 cm²/g screen mesh size of cm × cm and feed rate of
·The flow capacity litre/second/m 2 of the screen and hence the size of drum filter required can be easily calculated using Eq when the diameter of the submerged test screen is known In order to determine the mechanical removal efficiency for each micro screen water samples were collected during the flow capacity tests
·Highlights This paper reports on the efficiency of a vibration isolating screen The vibration isolating screen is conceived as a sandwich panel The dynamic soil characteristics of the site have been determined in situ The efficiency of the screen is measured in situ and simulated numerically The stiffness contrast is the key factor determining screen performance
·Current screen capacity calculations do not take into consideration enough of the factors affecting screen efficiency The old formulas were designed to keep calculations short and manageable for manual calculation The common use of computers in today s world makes it possible to do more complex screen capacity calculations in much shorter time
·During screening of damp mined rock on the vertical vibrating screen with high efficiency values of mode parameters should be as follows amplitude of fluctuations of the screen box 1 2 mm
·In addition the screen length determines the screening time of the materials which is the key factor for the screening efficiency Furthermore the installation space restricts the increase of screen length Therefore the screen efficiency in area I was smaller than that of area II During VEVS based screening process materials loosened
·According to the single factor test the screening efficiency of the vibrating dewatering screen is the best when the amplitude is mm the vibration frequency is 40 Hz the vibrating direction angle is 40° and the slope angle of screen surface is 5°; The processing efficiency is the best when the amplitude is mm the vibration
·Factors affecting vibrating screen efficiency include Feed rate The rate at which material is fed into a material processing system affects the efficiency of vibratory screens Lower feed rates lead to longer screening times resulting in near complete particle separation as material passes through the screen whereas higher feed rates cover
·The installation of sand screens in open hole completions in the wellbore is crucial for managing sand production The main reason for using standalone screens in open hole completions is their relatively reduced operational complexity compared to other sand control technologies However directly applying the screen to the bottom of the hole can lead to an
·Someone proposed to change the shape of screen surface to obtain larger processing capacity and higher screen efficiency A rotated cylindrical separation device was designed and tested to perform the size separation under different operating conditions Chen Hsiau Lee Chyou & Hsu 2010 A banana screen with two types of decks was proposed to
For a screen efficiency of 79% and Figure the correction factor for screen efficiency C 5 = 6 For a single deck screen the factor C 6 = 1 7 For a screen inclined at 15° the slope factor from Figure C 7 = 1 8 For a square aperture from Table C 8 = 1 9
·As an important screening equipment vibrating screen will directly affect the quality and investment cost of the final product Generally the screening efficiency of vibrating screen is related to many factors such as material properties equipment structure and various performance parameters In addition to the hard factors of material
Similarly screen effectiveness based on undersize material The overall combined effectiveness E is given by Substituting E O and E U in equation we get Equation 11 is an alternative expression to evaluate screen effectiveness without involving the streams and using only the fractions Factors affecting efficiency
·In other words a hole type screen appears to be better fractionation efficiency than a slot type screen [14] Therefore the fractionation using mm size of hole screen was decided to prepare
