Optimal Size Range for Enteric-Coated Pancreatin Preparations

Pancreas ◽  
2011 ◽  
Vol 40 (2) ◽  
pp. 310-311
Author(s):  
Peter Christian Hans Lederer
Keyword(s):  
Size Range ◽  
Optimal Size ◽  
Enteric Coated

Experimental Study on Forming Quality of Hat-Shaped Component Based on Combined Mandrel Pressurization Method

2019 ◽  
Vol 953 ◽  
pp. 80-87
Author(s):  
Zi Jun Lin ◽  
Li Hua Zhan ◽  
Yi Bo Li ◽  
Teng Fei Chang ◽  
Fan Deng ◽  
...  
Keyword(s):  
Unsolved Problem ◽  
Size Range ◽  
Process Window ◽  
Optimal Size ◽  
Curing Process ◽  
Forming Quality ◽  
Silicon Rubber ◽  
Expansion Pressure ◽  
On Line

The uncontrollable forming quality of component caused by the uncontrollable expansion pressure of silicon rubber mandrel has long been an unsolved problem in the fabrication of composite hat-shaped components. Here,we advanced a novel mandrel pressurization method combining silicon rubber mandrel and inflatable mold. Cure experiments were carried out based on the combined mandrel with different adjustable apertures. At the same time, the resin pressure of the components was monitored on-line during the curing process by using a self-built pressure on-line monitoring system, and their geometric accuracies and forming quality were evaluated. The experimental results show that the combined mandrel forming method can control the uniformity of pressure, geometric accuracies and forming quality of the hat-shaped component effectively, and the optimal size range is obtained with the hole ratio of 0.4~0.53. Compared with the traditional auxiliary forming method, combined mandrel pressurization method greatly reduces the requirements on the size of the mandrel structure and broadens the process window of the mandrel for the curing of hat-shaped component.

scholarly journals Choosing an Optimal Size Range of Pneumatically Actuated Linear Modules for Sprayer Robots

2020 ◽  
pp. 0159-0167
Author(s):  
Velizar Zaharinov ◽  
Ivo Malakov ◽  
Stilian Nikolov ◽  
Reneta Dimitrova ◽  
Grigor Stambolov
Keyword(s):  
Size Range ◽  
Optimal Size

Optimization of Size Ranges of Technical Products

2016 ◽  
Vol 859 ◽  
pp. 194-203
Author(s):  
Ivo Malakov ◽  
Velizar Zaharinov
Keyword(s):  
Mathematical Model ◽  
Size Range ◽  
Optimal Size ◽  
Technical Products

The paper presents a formulation of the problem for choosing an optimal size range of technical products and a mathematical model for solving of the said problem. Particular attention is paid to the ways for satisfying the types of demand for the size ranges’ elements. Two ways are proposed, and they are formalized as constraints in a mathematical model. Methods are proposed for solving the problem in accordance with the chosen way of satisfying the demand, and an algorithm is developed. The methods and the algorithm are approbated by solving a particular problem.

Optimal size of territory in the clay-colored sparrow, Spizella pallida

1979 ◽  
Vol 57 (7) ◽  
pp. 1358-1370 ◽  
Author(s):  
Richard W. Knapton
Keyword(s):  
Nest Predation ◽  
Size Range ◽  
Reproductive Fitness ◽  
Territory Size ◽  
Optimal Size ◽  
Adjacent Territory ◽  
Upper Limit ◽  
Number Of Factors ◽  
Open Country ◽  
Two Populations

Territory size in two populations of clay-colored sparrows in Manitoba averaged smaller than those in other open-country species of sparrows. This is probably because the territory was not used by adults for feeding or for gathering food fur the young. Experimental removals of territorial males in mid-May revealed the existence of a surplus of nonterritorial birds, indicating that there is some resistance to taking too small a territory. Investigation of several factors which could influence territory size indicated that nest predation was the most important factor in preventing the territory from becoming a very small size and that the upper limit to territory size was determined proximately by a number of factors including nesting cover and pressure from adjacent territory holders. Most male clay-colored sparrows appeared to preferentially defend an optimal size range of territories in which they maximized their reproductive fitness.

scholarly journals Overcoming Drag at the Water-Air Interface Constrains Body Size in Whirligig Beetles

Fluids ◽  
2021 ◽  
Vol 6 (7) ◽  
pp. 249
Author(s):  
Ludovic Jami ◽  
Grey T. Gustafson ◽  
Thomas Steinmann ◽  
Miguel Piñeirua ◽  
Jérôme Casas
Keyword(s):  
Body Size ◽  
Swimming Speed ◽  
Minimal Model ◽  
Aquatic Insects ◽  
Size Range ◽  
Optimal Size ◽  
Air Interface ◽  
Evolutionary Trajectories

Whirligig beetles (Coleoptera: Gyrinidae) are among the best swimmers of all aquatic insects. They live mostly at the water’s surface and their capacity to swim fast is key to their survival. We present a minimal model for the viscous and wave drags they face at the water’s surface and compare them to their thrust capacity. The swimming speed accessible is thus derived according to size. An optimal size range for swimming at the water’s surface is observed. These results are in line with the evolutionary trajectories of gyrinids which evolved into lineages whose members are a few milimeter’s long to those with larger-sized genera being tens of millimeters in length. The size of these beetles appears strongly constrained by the fluid mechanical laws ruling locomotion and adaptation to the water-air interface.

Microtomy of spherical Al2O3 powders

1983 ◽  
Vol 41 ◽  
pp. 74-75
Author(s):  
E.J. Jenkins ◽  
D.S. Tucker ◽  
J.J. Hren
Keyword(s):  
Thin Film ◽  
Size Range ◽  
Particle Aggregation ◽  
Ion Milling ◽  
Thin Sections ◽  
Α Phase ◽  
Convenient Means ◽  
Van Der Waals Attraction ◽  
Negative Feature ◽  
Film Substrate

The size range of mineral and ceramic particles of one to a few microns is awkward to prepare for examination by TEM. Electrons can be transmitted through smaller particles directly and larger particles can be thinned by crushing and dispersion onto a substrate or by embedding in a film followed by ion milling. Attempts at dispersion onto a thin film substrate often result in particle aggregation by van der Waals attraction. In the present work we studied 1-10 μm diameter Al2O3 spheres which were transformed from the amprphous state to the stable α phase.After the appropriate heat treatment, the spherical powders were embedded in as high a density as practicable in a hard EPON, and then microtomed into thin sections. There are several advantages to this method. Obviously, this is a rapid and convenient means to study the microstructure of serial slices. EDS, ELS, and diffraction studies are also considerably more informative. Furthermore, confidence in sampling reliability is considerably enhanced. The major negative feature is some distortion of the microstructure inherent to the microtoming operation; however, this appears to have been surprisingly small. The details of the method and some typical results follow.

Microdiffraction Patterns of Small Metallic Particles II; Theoretical Analysis

1982 ◽  
Vol 40 ◽  
pp. 668-669
Author(s):  
A. Gómez ◽  
P. Schabes-Retchkiman ◽  
M. José-Yacamán ◽  
T. Ocaña
Keyword(s):  
Experimental Data ◽  
Electron Diffraction ◽  
Theoretical Analysis ◽  
Size Range ◽  
Dynamical Theory ◽  
Metallic Particles ◽  
Splitting Effect

The splitting effect that is observed in microdiffraction pat-terns of small metallic particles in the size range 50-500 Å can be understood using the dynamical theory of electron diffraction for the case of a crystal containing a finite wedge. For the experimental data we refer to part I of this work in these proceedings.

Electron Microscopy of the Shape of Small Metal Particles

1977 ◽  
Vol 35 ◽  
pp. 300-301
Author(s):  
M. Jose Yacaman
Keyword(s):  
Electron Microscopy ◽  
Metal Particle ◽  
Field Experiments ◽  
Size Range ◽  
Dark Field ◽  
Metal Particles ◽  
Bragg Condition ◽  
Crystal Particle ◽  
Small Metal Particle ◽  
Small Metal Particles

In the Study of small metal particles the shape is a very Important parameter. Using electron microscopy Ino and Owaga(l) have studied the shape of twinned particles of gold. In that work electron diffraction and contrast (dark field) experiments were used to produce models of a crystal particle. In this work we report a method which can give direct information about the shape of an small metal particle in the amstrong- size range with high resolution. The diffraction pattern of a sample containing small metal particles contains in general several systematic and non- systematic reflections and a two-beam condition can not be used in practice. However a N-beam condition produces a reduced extinction distance. On the other hand if a beam is out of the bragg condition the effective extinction distance is even more reduced.

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