نتایج جستجو برای: thinning factor

تعداد نتایج: 854256  

Journal: :Computers & Mathematics with Applications 1995

In this study, the effects of heat treatment of aluminum alloy on the tube bending process were investigated in the rotary draw bending process. As two experimental and numerical simulation methods were used to determine the wall-thinning, ovality, and spring back for extruded, annealed, and aged AA6063 aluminum alloy tubes in different bending angles and bend radii. Numerical simulations were ...

2017
Bosi Mao Thibaut Divoux Patrick Snabre

Agarose gels are viscoelastic soft solids that display a porous microstructure filled with water at 90% w/w or more. Despite an extensive use in food industry and microbiology, little is known about the drying kinetics of such squishy solids, which suffers from a lack of time-resolved local measurements. Moreover, only scattered empirical observations are available on the role of the gel compos...

2016
Ramneet Kaur

Thinning is the preprocessing stage to make easy higher level analysis and recognition for such applications like OCR, thinning techniques have been applied in many fields such as automated industrial inspection, pattern recognition, biological shape description and image coding etc. The main objective of thinning is to improve efficiency, to reduce transmission time. There are various algorith...

عنایت ‌الله تفضلی, , محمدجواد مقبلی هنزایی, ,

Alternate bearing is a key factor in limiting citrus production. Chemical controls have proved to be the most effective solution to this problem. Two different experiments were conducted to study the effects of different growth regulators (GA3, NAA, Ethephon) and urea on alternate bearing control in Kinnow mandarin (Citrus reticulata). In the first experiment, GA3 at concentrations of 0, 25, 50...

2002
Heli Peltola Jari Miina Ismo Rouvinen Seppo Kellomäki

The absolute and relative effects of the fi rst thinning on the diameter growth distribution along the stems were studied in 98 Scots pines (Pinus sylvestris L.) at heights of 1.3, 4, 6 and 8 m. The data cover one 3-year pre-thinning period and four 3-year post-thinning periods in plots with densities varying from 575 to 3400 stems ha–1. A shift in the point of maximum diameter growth down the ...

In the recent years, the optimization techniques using evolutionary algorithms have been widely used to solve electromagnetic problems. These algorithms use thinning the antenna arrays with the aim of reducing the complexity and thus achieving the optimal solution and decreasing the side lobe level. To obtain the optimal solution, thinning is performed by removing some elements in an array thro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - پژوهشگاه پلیمر و پتروشیمی ایران - پژوهشکده پتروشیمی 1390

هدف اصلی این پروژه شبیه سازی رفتار جریان سیالات shear thinning در محیط متخلخل با نفوذپذیری بالا توسط روش المان محدود می باشد. با توجه به میزان تخلخل محیط و عدد رینولدز، مدل های مختلفی برای جریان در محیط متخلخل ارائه شده اند. در شرایطی که سرعت جریان به اندازه کافی پایین باشد و بتوان از اثر اینرسی صرف نظر کرد، معادله brinkman میتواند به خوبی برای پیش بینی رفتار جریان در محیط متخلخل استفاده شود. د...

2017
M. H. Fathima Haseena A. Roselin Clara

Thinning is the important technique used in the image processing. The first step in the Thinning is “PreProcessing”. This Thinning technique is used to represent the structural shape of the image. This thinning technique is used to compress the image and also to display the skeleton of the image. Skeletonization is a process of reducing foreground regions of a binary image to a skeleton form th...

2016
Seongjun Kim Seung Hyun Han Guanlin Li Tae Kyung Yoon Sang-Tae Lee Choonsig Kim

Background: As the decomposition of lignocellulosic compounds is a rate-limiting stage in the nutrient mineralization from organic matters, elucidation of the changes in soil enzyme activity can provide insight into the nutrient dynamics and ecosystem functioning. The current study aimed to assess the effect of thinning intensities on soil conditions. Un-thinned control, 20 % thinning, and 30 %...

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