scholarly journals Methods for Preparing Liquid/Liquid Type Multiple-Phase Dispersions

1978 ◽  
Vol 12 (1) ◽  
pp. 5-12
Author(s):  
Sachio Matsumoto
Keyword(s):  
Multiple Phase ◽  
Liquid Type

Multiple phase transitions investigated by high-speed TEM

1990 ◽  
Vol 48 (4) ◽  
pp. 550-551
Author(s):  
Oleg Bostanjoglo ◽  
Peter Thomsen-Schmidt
Keyword(s):  
Phase Transitions ◽  
High Speed ◽  
Short Exposure ◽  
Semiconductor Film ◽  
Time Resolved ◽  
Short Exposure Time ◽  
Multiple Phase ◽  
Model Substance ◽  
History Of ◽  
Electron Image

Thin GexTe1-x (x = 0.15-0.8) were studied as a model substance of a composite semiconductor film, in addition being of interest for optical storage material. Two complementary modes of time-resolved TEM were used to trace the phase transitions, induced by an attached Q-switched (50 ns FWHM) and frequency doubled (532 nm) Nd:YAG laser. The laser radiation was focused onto the specimen within the TEM to a 20 μm spot (FWHM). Discrete intermediate states were visualized by short-exposure time doubleframe imaging /1,2/. The full history of a transformation was gained by tracking the electron image intensity with photomultiplier and storage oscilloscopes (space/time resolution 100 nm/3 ns) /3/. In order to avoid radiation damage by the probing electron beam to detector and specimen, the beam is pulsed in this continuous mode of time-resolved TEM,too.Short events ( <2 μs) are followed by illuminating with an extended single electron pulse (fig. 1c)

scholarly journals Geometric Algebra Framework Applied to Symmetrical Balanced Three-Phase Systems for Sinusoidal and Non-Sinusoidal Voltage Supply

Mathematics ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 1259
Author(s):  
Francisco G. Montoya ◽  
Raúl Baños ◽  
Alfredo Alcayde ◽  
Francisco Manuel Arrabal-Campos ◽  
Javier Roldán Roldán Pérez
Keyword(s):  
Geometric Algebra ◽  
Dimensional Euclidean Space ◽  
Active Components ◽  
Electrical Circuits ◽  
Current Harmonics ◽  
Operation Conditions ◽  
Multiple Phase ◽  
Three Phase ◽  
Phase Systems ◽  
Definition Of

This paper presents a new framework based on geometric algebra (GA) to solve and analyse three-phase balanced electrical circuits under sinusoidal and non-sinusoidal conditions. The proposed approach is an exploratory application of the geometric algebra power theory (GAPoT) to multiple-phase systems. A definition of geometric apparent power for three-phase systems, that complies with the energy conservation principle, is also introduced. Power calculations are performed in a multi-dimensional Euclidean space where cross effects between voltage and current harmonics are taken into consideration. By using the proposed framework, the current can be easily geometrically decomposed into active- and non-active components for current compensation purposes. The paper includes detailed examples in which electrical circuits are solved and the results are analysed. This work is a first step towards a more advanced polyphase proposal that can be applied to systems under real operation conditions, where unbalance and asymmetry is considered.

Segmenting Kidney on Multiple Phase CT Images using ULBNet

2021 ◽  
Author(s):  
Yanling Chi ◽  
Yuyu Xu ◽  
Gang Feng ◽  
Jiawei Mao ◽  
Sihua Wu ◽  
...  
Keyword(s):  
Ct Images ◽  
Multiple Phase

scholarly journals Fractal and Fractional Derivative Modelling of Material Phase Change

2020 ◽  
Vol 4 (3) ◽  
pp. 46
Author(s):  
Harry Esmonde
Keyword(s):  
Transfer Functions ◽  
Type Model ◽  
Material Structure ◽  
Iterative Approach ◽  
Response Functions ◽  
Physical Processes ◽  
Ethyl Vinyl ◽  
Solid Models ◽  
Liquid Type ◽  
Model Phase

An iterative approach is taken to develop a fractal topology that can describe the material structure of phase changing materials. Transfer functions and frequency response functions based on fractional calculus are used to describe this topology and then applied to model phase transformations in liquid/solid transitions in physical processes. Three types of transformation are tested experimentally, whipping of cream (rheopexy), solidification of gelatine and melting of ethyl vinyl acetate (EVA). A liquid-type model is used throughout the cream whipping process while liquid and solid models are required for gelatine and EVA to capture the yield characteristic of these materials.

Analysis of fractionation correction methodologies for multiple phase treatment plans in radiation therapy

2013 ◽  
Vol 40 (3) ◽  
pp. 031715 ◽  
Author(s):  
Panayiotis Mavroidis ◽  
Brigida Costa Ferreira ◽  
Nikos Papanikolaou ◽  
Maria do Carmo Lopes
Keyword(s):  
Radiation Therapy ◽  
Multiple Phase ◽  
Treatment Plans
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