نتایج جستجو برای: drop size

تعداد نتایج: 597096  

2005
Maxime Collomb Mountaz Hascoët Patrick Baudisch Brian Lee

On wall-size displays with pen or touch input, users can have difficulties reaching display contents located too high, too low, or too far away. Drag-and-drop interactions can be further complicated by bezels separating individual display units. Researchers have proposed a variety of interaction techniques to address this issue, such as extending the user’s reach (e.g., push-andthrow) and bring...

Journal: :Entropy 2011
Ramiro Checa Francisco J. Tapiador

This paper presents a maximum entropy approach to Rain Drop Size Distribution (RDSD) modelling. It is shown that this approach allows (1) to use a physically consistent rationale to select a particular probability density function (pdf) (2) to provide an alternative method for parameter estimation based on expectations of the population instead of sample moments and (3) to develop a progressive...

Journal: :Bioscience, biotechnology, and biochemistry 2013
Mayank Saraswat Ralph S Grand Wayne M Patrick

It is often desirable to obtain gene libraries with the greatest possible number of variants. We tested two different methods for desalting the products of library ligation reactions (silica-based microcolumns and drop dialysis), and examined their effects on final library size. For both intramolecular and intermolecular ligation, desalting by drop dialysis yielded approximately 3-5 times more ...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2014
Ashley M Macner Susan Daniel Paul H Steen

During dropwise condensation from vapor onto a cooled surface, distributions of drops evolve by nucleation, growth, and coalescence. Drop surface coverage dictates the heat transfer characteristics and depends on both drop size and number of drops present on the surface at any given time. Thus, manipulating drop distributions is crucial to maximizing heat transfer. On earth, manipulation is ach...

2009
Moussa Tembely Christian Lécot Arthur Soucemarianadin

Abstract—We report in this paper the evolution of a physically based drop size distribution coupling the Maximum Entropy Formalism and the Monte Carlo method to solve the coagulation equation. Using the discrete or continuous population balance equation, the Mass Flow Algorithm is formulated taking into account interactions between droplets via coalescence. After proposing a kernel for coalesce...

1999
Joon Mo Yang Xing Yang Chih-Ming Ho Yu-Chong Tai

Micro-filters are fabricated using MEMS technology, and both measurements and numerical calculations are carried out in order to estimate the power requirement in a micron-size particle collection process using the microfilter. In order to numerically predict the pressure drop through the micro-filter, we focus on the characterization of the geometrical factors, such as internal profile of the ...

Journal: :health scope 0
amirabbas mofidi department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran hassan asilian department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran; department of occupational health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran. tel.: +98-9123873932, fax: +98-2182883825 ahmad jonidi jafari department of environment health engineering, faculty of medical sciences, tarbiat modares university, tehran, ir iran

conclusions results indicated that annular fluidized bed reactor’s adsorbers are useful techniques for vocs adsorption. comparison of two particle ranges indicates that in all concentrations and all flow rates of the experiments, smaller particle size adsorption are better. in superficial velocity above the minimum fluidization velocity, pressure drop of fluidized beds are less than the pressur...

Knowledge of droplet behavior is one of the most important criteria for determination of mass transfer kinetics for choosing the type of liquid-liquid extraction columns. Mean drop size data of dispersed phase droplets in continuous phase have been obtained for Various Rotary Agitated Liquid-Liquid Extraction Columns . The effects of operational variables such as mass transfer directions with a...

2004
Alexander Marshak Yuri Knyazikhin Michael Larsen Warren Wiscombe

In this research, the effect ofmixed salts together with mixed ionic surfactants on dropinterface coalescence time was studied for the system of water (d) / toluene(c) as a model system. Sodium dodecyl sulf...

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