نتایج جستجو برای: particle sorting

تعداد نتایج: 205121  

Journal: :journal of agricultural science and technology 2010
m. rashidi m. gholami s. abbassi

cantaloupe (cucumis melo) volume was measured using water displacement and image processing methods. the volume determined from image processing method was compared to the volume determined by the water displacement method using the paired samples t-test and the bland-altman approach. the paired samples t-test results showed that the volume determined by image processing method was not signific...

2003
Xiaodong Li

This paper introduces a modified PSO, Non-dominated Sorting Particle Swarm Optimizer (NSPSO), for better multiobjective optimization. NSPSO extends the basic form of PSO by making a better use of particles’ personal bests and offspring for more effective nondomination comparisons. Instead of a single comparison between a particle’s personal best and its offspring, NSPSO compares all particles’ ...

2015
Qianru Wang

Low frequency insulator based dielectrophoresis (iDEP) is a promising technique to study cell surface dielectric properties. To date, iDEP has been exploited to distinguish, characterize, and manipulate particles and bacteria based on their size and general cell phenotype (e.g. gram positive vs. gram negative). However, separation of bacteria with diverse surface phenotypes but similar sizes se...

2017
Richard Mayne James Whiting Gabrielle Wheway Chris Melhuish Andrew Adamatzky

Motile cilia are cell-surface organelles whose purposes, in ciliated protists and certain ciliated vertebrate epithelia, include generating fluid flow, chemosensation, mechanosensation and substance uptake. Certain properties of cilia arrays, such as beating synchronisation and manipulation of external proximate particulate matter, are considered emergent, but remain incompletely characterised ...

Journal: :Analytical chemistry 2007
Dongeun Huh Joong Hwan Bahng Yibo Ling Hsien-Hung Wei Oliver D Kripfgans J Brian Fowlkes James B Grotberg Shuichi Takayama

This paper describes a simple microfluidic sorting system that can perform size profiling and continuous mass-dependent separation of particles through combined use of gravity (1 g) and hydrodynamic flows capable of rapidly amplifying sedimentation-based separation between particles. Operation of the device relies on two microfluidic transport processes: (i) initial hydrodynamic focusing of par...

2016
Biqin Dong Siyu Chen Fan Zhou Christina H. Y. Chan Ji Yi Hao F. Zhang Cheng Sun

We report the application of spectral-domain optical coherence tomography (SD-OCT) technology that enables real-time functional analysis of sorting microparticles and cells in an inertial microfluidic device. We demonstrated high-speed, high-resolution acquisition of cross-sectional images at a frame rate of 350 Hz, with a lateral resolution of 3 μm and an axial resolution of 1 μm within the mi...

Journal: :Science 1966
K A Jackson D R Uhlmann

33°N, long. 127°W, about 650 km west of Los Angeles. These holes will be drilled to about 300 meters, the depth depending on the maximum which can be attained with one bit because hole reentry will not be feasible. The drilling will test the hypothesis of ocean floor spreading (1) and the generation of long, linear, magnetic anomalies according to the Vine-Matthews hypothesis (2), relating them...

2002
N. L. Hagedorn A. Kracher

Introduction: One of the most important discoveries of the NEAR Shoemaker mission to Eros was the “ponds”, flat regions (relative to surrounding terrain) inside craters that exhibit a slightly bluer reflectance spectra than most of the asteroid [1]. Ponds have been interpreted as being composed of finer-grained material than the rest of the asteroid surface. Formation processes for ponds includ...

Journal: :Journal of structural biology 2013
J Vargas V Abrishami R Marabini J M de la Rosa-Trevín A Zaldivar J M Carazo C O S Sorzano

Three-dimensional reconstruction of biological specimens using electron microscopy by single particle methodologies requires the identification and extraction of the imaged particles from the acquired micrographs. Automatic and semiautomatic particle selection approaches can localize these particles, minimizing the user interaction, but at the cost of selecting a non-negligible number of incorr...

Journal: :Journal of dairy science 2012
T J DeVries R M Gill

This study was designed to determine the effect of adding a molasses-based liquid feed (LF) supplement to a total mixed ration (TMR) on the feed sorting behavior and production of dairy cows. Twelve lactating Holstein cows (88.2±19.5 DIM) were exposed, in a crossover design with 21-d periods, to each of 2 treatment diets: 1) control TMR and 2) control TMR with 4.1% dietary dry matter LF added. ...

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