Designing Commercial Equipment for Conducted Susceptibility

1979 ◽  
Author(s):  
William T. Rhoades
Keyword(s):  
Commercial Equipment

Process and Manufacturing Challenges for High-K Gate Stack Systems

1999 ◽  
Vol 567 ◽  
Author(s):  
M.C. Gilmer ◽  
T-Y Luo ◽  
H.R. Huff ◽  
M.D. Jackson ◽  
S. Kim ◽  
...  
Keyword(s):  
Silicon Surface ◽  
Gate Dielectrics ◽  
Electrical Characterization ◽  
Metal Electrode ◽  
Significant Variable ◽  
Tem Analysis ◽  
Physical Mechanisms ◽  
High K ◽  
Commercial Equipment

ABSTRACTA design-of-experiments methodology was implemented to assess the commercial equipment viability to fabricate the high-K dielectrics Ta2O5, TiO2 and BST (70/30 and 50/50 compositions) for use as gate dielectrics. The high-K dielectrics were annealed in 100% or 10% O2 for different times and temperatures in conjunction with a previously prepared NH3 nitrided or 14N implanted silicon surface. Five metal electrode configurations—Ta, TaN, W, WN and TiN—were concurrently examined. Three additional silicon surface configurations were explored in conjunction with a more in-depth set of time and temperature anneals for Ta2O5. Electrical characterization of capacitors fabricated with the above high-K gate dielectrics, as well as SIMS and TEM analysis, indicate that the post high-K deposition annealing temperature was the most significant variable impacting the leakage current density, although there was minimal influence on the capacitance. Further studies are required, however, to clarify the physical mechanisms underlying the electrical data presented.

Laboratory-scale Instrumental Neutron Activation for Archaeological Analysis

1965 ◽  
Vol 30 (3) ◽  
pp. 345-347 ◽  
Author(s):  
Ralph A. Johnson ◽  
F. H. Stross
Keyword(s):  
Neutron Activation Analysis ◽  
Activation Analysis ◽  
Neutron Activation ◽  
Laboratory Scale ◽  
Archaeological Analysis ◽  
Commercial Equipment ◽  
Instrumental Neutron Activation

AbstractNeutron activation analysis has been used to determine manganese in a series of potsherd chips from sites in the Valley of Mexico. The application of this technique and the use of laboratory-scale commercial equipment is described. Such equipment can give results in this application that are comparable to those obtained with the much higher fluxes characteristic of large reactors.

scholarly journals Design and manufacturing of an ultrasonic reactor for biodiesel obtaining by transesterification

DYNA ◽  
2019 ◽  
Vol 86 (211) ◽  
pp. 75-83
Author(s):  
Juan Fernando Florez Marulanda ◽  
Daniel Rodrigo Ortega Alegria
Keyword(s):  
Castor Oil ◽  
Potassium Hydroxide ◽  
The Other ◽  
Design Development ◽  
External Temperature ◽  
Operational Characteristics ◽  
Design And Manufacturing ◽  
Production Value ◽  
Reaction Speed ◽  
Commercial Equipment

It presents the design, development, and implementation of the ultrasonic reactor in laboratory level for batch transesterification with temperature variation, with a mechanic and electronic modular development, its operational characteristics were obtained through commercial equipment revision. To evaluate its performance, a mixture was made using castor oil, methanol, and potassium hydroxide, to obtain biodiesel and glycerin; by taking the glycerin stoichiometric value obtained in the reaction as the reference production value, an efficiency of 97% was reached with only the ultrasound incidence; in the processes with external temperature incidence, it was observed that it influences the reaction speed, since the stabilization times are around 30% less than the other observed processes.

scholarly journals Evaluation of the “Freiburg Acuity VEP” on Commercial Equipment

2019 ◽  
Vol 140 (2) ◽  
pp. 139-145 ◽  
Author(s):  
Michael Bach ◽  
Jeffrey D. Farmer
Keyword(s):  
Visual Acuity ◽  
Heuristic Algorithm ◽  
Objective Assessment ◽  
Successful Implementation ◽  
Limits Of Agreement ◽  
Fully Automatic ◽  
The University ◽  
Acuity Test ◽  
Commercial Equipment

Abstract Purpose To assess the implementation and outcome quality of the Freiburg Acuity VEP methodology (Bach et al. in Br J Ophthalmol 92:396–403, 2008) on the Diagnosys Espion Profile and E3 electrophysiology systems. Methods We recorded visual evoked potentials (VEPs) from both eyes of 24 participants, where visual acuity (VA) was either full or reduced with scatter foils to approximately 0.5 and 0.8 LogMAR, resulting in a total of 144 recordings. Behavioral VA was measured in each case under the same conditions using the Freiburg Acuity Test (FrACT); VEP-based acuity was assessed with the “heuristic algorithm,” which automatically selects points for regression to zero amplitude. Results Behavioral VA ranged from − 0.2 to 1.0 LogMAR. The fully automatic heuristic VEP algorithm resulted in 8 of 144 recordings (6%) that were scored as “no result.” The other 136 recordings (94%) had an outcome of − 0.20 to 1.3 LogMAR (which corresponds to a range of 20/12.5–20/400, or 6/3.8–6/120, in Snellen ratios; or 1.6–0.1 in decimal acuity). The heuristic VEP algorithm agreed with the behavioral VA to within ± 0.31 LogMAR (95% limits of agreement), which is equivalent to approximately three lines on a VA chart. Conclusions The successful implementation of the Freiburg Acuity VEP “heuristic algorithm” on a commercial system makes this capability available to a wider group of users. The limits of agreement of ± 0.31 LogMAR are close to the original implementation at the University of Freiburg and we believe are clinically acceptable for a fully automatic, largely objective assessment of visual acuity.

scholarly journals An Economical, Portable Manual Cryogenic Plunge Freezer for the Preparation of Vitrified Biological Samples for Cryogenic Electron Microscopy

2020 ◽  
Vol 26 (3) ◽  
pp. 413-418
Author(s):  
Jamie S. Depelteau ◽  
Gert Koning ◽  
Wen Yang ◽  
Ariane Briegel
Keyword(s):  
Electron Microscopy ◽  
Electron Tomography ◽  
Particle Analysis ◽  
Bacterial Cells ◽  
Cellular Processes ◽  
Cryo Electron Tomography ◽  
Specialized Equipment ◽  
Improved Design ◽  
Commercial Equipment ◽  
Local Machine

AbstractVisualizing biological structures and cellular processes in their native state is a major goal of many scientific laboratories. In the past 20 years, the technique of preserving samples by vitrification has greatly expanded, specifically for use in cryogenic electron microscopy (cryo-EM). Here, we report on improvements in the design and use of a portable manual cryogenic plunge freezer that is intended for use in laboratories that are not equipped for the cryopreservation of samples. The construction of the instrument is economical, can be produced by a local machine shop without specialized equipment, and lowers the entry barriers for newcomers with a reliable alternative to costly commercial equipment. The improved design allows for successful freezing of isolated proteins for single particle analysis as well as bacterial cells for cryo-electron tomography. With this instrument, groups will be able to prepare vitreous samples whenever and wherever necessary, which can then be imaged at local or national cryo-EM facilities.

An eddy-current laboratory test system using commercial equipment

1989 ◽  
Vol 22 (3) ◽  
pp. 183
Author(s):  
C.V. Dood ◽  
L.M. Whitaker ◽  
W.E. Deeds
Keyword(s):  
Laboratory Test ◽  
Eddy Current ◽  
Test System ◽  
Commercial Equipment

SURVIVAL OF POLIOVIRUS AND ECHOVIRUS DURING SIMULATED COMMERCIAL EGG PASTEURIZATION TREATMENTS

1972 ◽  
Vol 35 (4) ◽  
pp. 247-251 ◽  
Author(s):  
N. R. Strock ◽  
N. N. Potter
Keyword(s):  
Egg White ◽  
Process Conditions ◽  
Liquid Whole Egg ◽  
Whole Egg ◽  
Commercial Equipment

Fresh liquid whole egg and egg white were inoculated with poliovirus and echovirus and subjected to various process conditions of egg pasteurization. The process conditions studied included Salmonella destructive time-temperature exposures for whole egg and egg white, and various heat-peroxide treatments for egg white. Viruses did not survive time-temperature exposures that are effective against Salmonella in whole egg or egg white, but survived at various levels the heat-peroxide treatments applied to egg white. Although commercial equipment was not used in these studies, times, temperatures, and peroxide levels closely approximated those currently used commercially.

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