Development of Modeling Process in Rapid Freeze Prototyping

2015 ◽  
Vol 760 ◽  
pp. 117-122
Author(s):  
Alexandru Savin ◽  
Alexandru Floca ◽  
Mihai Trifănescu ◽  
Nicolae Ionescu ◽  
Aurelian Vişan
Keyword(s):  
Rapid Prototyping ◽  
Layer Thickness ◽  
Liquid Nitrogen ◽  
Conceptual Models ◽  
Theoretical Models ◽  
Spray Nozzle ◽  
Water Spray ◽  
Thickness Estimation ◽  
Modeling Process ◽  
Rapid Freeze Prototyping

Through rapid prototyping [1,2] it can be achieved both conceptual models: the final prototypes and functional parts in less time than with conventional technologies. The author of this paper shows the dependence of the diameter of liquid nitrogen spray nozzles according to the diameters of the water spray nozzle, a factor that is important in determining the amount of liquid nitrogen required to freeze the drop of water. Regarding the deposited layer thickness estimation, the author presented two theoretical models of contact between water droplets, which depend on the step between two consecutive drops of water.

AFLATOXIN CONTENT AND SKIN REMOVAL OF SPANISH PEANUTS AS AFFECTED BY TREATMENTS WITH CHEMICALS, WATER SPRAY, HEATED AIR, AND LIQUID NITROGEN

1976 ◽  
Vol 41 (3) ◽  
pp. 667-671 ◽  
Author(s):  
M. R. PAULSEN ◽  
G. H. BRUSEWlTZ ◽  
B. L CLARY ◽  
G. V. ODELL ◽  
J. POMINSKI
Keyword(s):  
Liquid Nitrogen ◽  
Water Spray ◽  
Aflatoxin Content ◽  
Heated Air ◽  
Skin Removal

The Effect of Effort on Sales Performance and Job Satisfaction

1994 ◽  
Vol 58 (2) ◽  
pp. 70-80 ◽  
Author(s):  
Steven P. Brown ◽  
Robert A. Peterson
Keyword(s):  
Job Satisfaction ◽  
Conceptual Models ◽  
Theoretical Models ◽  
Sales Performance ◽  
Sales Force ◽  
Work Behavior ◽  
Direct Selling ◽  
Work Related ◽  
Managerial Implications ◽  
Positive Effect

The authors address a fundamental gap in understanding how sales performance and job satisfaction are determined in an investigation of the sales force of a direct-selling organization. Results indicate a direct positive effect of work-related effort on job satisfaction that is not mediated by sales performance. This is inconsistent with commonly accepted theoretical models and suggests that the perspective of work as a “terminal value” (i.e., an end in itself, rather than strictly a means to an end) has been underemphasized in models of work behavior. As such, either (1) measures of sales performance should be broadened to encompass the terminal value perspective on the psychological value of work or (2) conceptual models should be revised to reflect that narrowly defined measures of sales performance do not completely mediate the effect of effort on job satisfaction. The authors conclude with a discussion of managerial implications of these findings.

scholarly journals The Soft Layer Thickness Estimation using Microtremor Measurement to Identify Landside Potential in Watukumpul, Central Java, Indonesia.

2021 ◽  
Vol 6 (1) ◽  
pp. 16-23
Author(s):  
Urip Nurwijayanto Prabowo ◽  
Akmal Ferdiyan ◽  
Ayu Fitri Amalia
Keyword(s):  
Layer Thickness ◽  
Spectral Ratio ◽  
Dominant Frequency ◽  
Soil Slope ◽  
Soft Layer ◽  
Thickness Estimation ◽  
Central Java ◽  
Hvsr Method ◽  
Microtremor Measurement ◽  
Potential Area

Watukumpul is an area that is prone to landslides, so determining the soft layer thickness is very important to identify the landslide potential. The soft layer thickness can be estimated using microtremor signal measurements which analyzed using the Horizontal to Vertical Spectral Ratio (HVSR). In this study,we measured microtremor signal of 33location around Watukumpul, Pemalang, Central Java area to determine soft layer thickness. Micretremor signal was analyzed based on theHVSR method using Geopsy software and follow the standard of the Sesame Europan Project. The results of the HVSR method are the HVSR curve that fulfills the reliable curve standard. HVSR curve shows that the dominant frequency of soft layer ranges from 1.36 – 7.62 Hz and the amplification values ranges from 9.00 – 41.45. The soft layer thickness value in the study area ranges from 17.58 - 103.60 meters. The high landslide potential area are located at W7, W8, W18, W30 and W32 where has thin soft layer and high soil slope.

scholarly journals Dead layer thickness estimation at the ferroelectric film-metal interface in PZT

2019 ◽  
Vol 114 (13) ◽  
pp. 132902 ◽  
Author(s):  
Yu. V. Podgorny ◽  
K. A. Vorotilov ◽  
A. S. Sigov ◽  
J. F. Scott
Keyword(s):  
Layer Thickness ◽  
Ferroelectric Film ◽  
Dead Layer ◽  
Metal Interface ◽  
Thickness Estimation ◽  
Dead Layer Thickness

Critical Layer Thickness: Theory and Experiment in the ZnSe/GaAs (001) Material System

2017 ◽  
Vol 26 (03) ◽  
pp. 1740020
Author(s):  
Tedi Kujofsa ◽  
John E. Ayers
Keyword(s):  
Layer Thickness ◽  
Flow Model ◽  
Driving Forces ◽  
Lattice Relaxation ◽  
Theoretical Models ◽  
Critical Layer ◽  
Material System ◽  
Critical Layer Thickness ◽  
Experimental Resolution ◽  
Experimental Strain

The critical layer thickness (CLT) determines the criteria for dislocation formation and the onset of lattice relaxation. Although several theoretical models have been developed for the critical layer thickness, experimentally-measured CLTs in ZnSe/GaAs (001) heterostructures are often at variance with one another as well as with established theories. In a previous work [T. Kujofsa et al., J. Vac. Sci. Technol. B, 34, 051201 (2016)], we showed that the experimentally measured CLT may be much larger than the equilibrium value when using finite experimental resolution. In this work, we apply a general dislocation flow model to determine the apparent critical layer thickness as a function of the experimental resolution for ZnSe/GaAs (001) heterostructures. More importantly, we compare the results utilizing different equilibrium theories and therefore varying driving forces for the lattice relaxation in order to determine which established models are consistent with several measured values of CLT for ZnSe/GaAs (001) once kinetically-limited relaxation and finite experimental strain resolution are taken into account.

Process Analysis for Rapid Tooling Technology Based on Rapid Prototyping

2011 ◽  
Vol 216 ◽  
pp. 798-803 ◽  
Author(s):  
Hong Pu Liu ◽  
Jun Su ◽  
Xiao Jing Li
Keyword(s):  
Rapid Prototyping ◽  
Process Analysis ◽  
Rapid Tooling ◽  
Production Cycle ◽  
Fabrication Cost ◽  
Modeling Process ◽  
Working Principle ◽  
The Difference ◽  
Tooling Technology

This paper discussed the working principle, classification, modeling process and technology features for rapid tooling based on rapid prototyping and investigated into the difference between rapid tooling with traditional modeling manufacture. Several typical rapid tooling technologies are compared and summarized from mould period, fabrication cost and production cycle. Some key problems that rapid tooling industry will face with are analyzed. The application of the rapid tooling based on rapid prototyping is prospected.

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