Photoluminescence and structural studies on extended defect evolution during high-temperature processing of ion-implanted epitaxial silicon

2001 ◽  
Vol 89 (8) ◽  
pp. 4310-4317 ◽  
Author(s):  
P. K. Giri ◽  
S. Coffa ◽  
V. Raineri ◽  
V. Privitera ◽  
G. Galvagno ◽  
...  
Keyword(s):  
High Temperature ◽  
Structural Studies ◽  
Epitaxial Silicon ◽  
Extended Defect ◽  
Defect Evolution ◽  
High Temperature Processing ◽  
Ion Implanted

Modeling of extrinsic extended defect evolution in ion-implanted silicon upon thermal annealing

2004 ◽  
Vol 114-115 ◽  
pp. 184-192 ◽  
Author(s):  
C.J. Ortiz ◽  
F. Cristiano ◽  
B. Colombeau ◽  
A. Claverie ◽  
N.E.B. Cowern
Keyword(s):  
Thermal Annealing ◽  
Extended Defect ◽  
Defect Evolution ◽  
Ion Implanted

AFM study of the dynamics of α-alumina surface faceting during high-temperature processing

1995 ◽  
Vol 53 ◽  
pp. 334-335 ◽  
Author(s):  
Michael W. Bench ◽  
Jason R. Heffelfinger ◽  
C. Barry Carter
Keyword(s):  
High Temperature ◽  
Thin Foil ◽  
Sem Analysis ◽  
Conductive Coatings ◽  
Force Microscopy ◽  
Minimal Sample ◽  
Atomic Force ◽  
Formation And Evolution ◽  
High Temperature Processing ◽  
Nominal Surface

To gain a better understanding of the surface faceting that occurs in α-alumina during high temperature processing, atomic force microscopy (AFM) studies have been performed to follow the formation and evolution of the facets. AFM was chosen because it allows for analysis of topographical details down to the atomic level with minimal sample preparation. This is in contrast to SEM analysis, which typically requires the application of conductive coatings that can alter the surface between subsequent heat treatments. Similar experiments have been performed in the TEM; however, due to thin foil and hole edge effects the results may not be representative of the behavior of bulk surfaces.The AFM studies were performed on a Digital Instruments Nanoscope III using microfabricated Si3N4 cantilevers. All images were recorded in air with a nominal applied force of 10-15 nN. The alumina samples were prepared from pre-polished single crystals with (0001), , and nominal surface orientations.

Influence of Enzyme Activity of Bacteria and Leucocytes in Raw Milk on Age Gelation after UHT Processing

1984 ◽  
Vol 47 (2) ◽  
pp. 105-107 ◽  
Author(s):  
BARBARA P. KEOGH ◽  
G. PETTINGILL
Keyword(s):  
Enzyme Activity ◽  
High Temperature ◽  
Inhibitory Action ◽  
Raw Milk ◽  
Bacterial Counts ◽  
High Temperature Processing ◽  
The Relationship ◽  
Ultra High Temperature

An investigation was undertaken into the relationship between the enzyme activity of cells harvested from raw milk and time taken for age gelation (TAG) to occur in the milk after ultra-high-temperature processing. It was shown that there was no relationship between the TAG and the bacterial counts on milk agar at 30°C or 7°C nor was there a relationship between the counts and the level of enzyme activity of the harvested cells. There was, however, a significant correlation between the level of enzyme activity of the harvested cells and the TAG. When extra bovine leucocytes were added to raw milk before processing, the TAG was increased. This suggested that there was an inhibitory action of leucocytes in development of age gelation.

Interpretation of macropore shape transformation in crystalline silicon upon high temperature processing

2010 ◽  
Vol 108 (7) ◽  
pp. 074902 ◽  
Author(s):  
Moustafa Y. Ghannam ◽  
Abdulazeez S. Alomar ◽  
Jef Poortmans ◽  
Robert P. Mertens
Keyword(s):  
High Temperature ◽  
Crystalline Silicon ◽  
Shape Transformation ◽  
High Temperature Processing

Effect of high-pressure/high-temperature processing on chemical pectin conversions in relation to fruit and vegetable texture

2009 ◽  
Vol 115 (1) ◽  
pp. 207-213 ◽  
Author(s):  
Ans De Roeck ◽  
Thomas Duvetter ◽  
Ilse Fraeye ◽  
Iesel Van der Plancken ◽  
Daniel Ndaka Sila ◽  
...  
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Fruit And Vegetable ◽  
High Pressure High Temperature ◽  
High Temperature Processing

scholarly journals Asymmetric Pd-NHC*-catalyzed coupling reactions

2012 ◽  
Vol 84 (8) ◽  
pp. 1741-1748 ◽  
Author(s):  
E. Peter Kündig ◽  
Yixia Jia ◽  
Dmitry Katayev ◽  
Masafumi Nakanishi
Keyword(s):  
High Temperature ◽  
Coupling Reactions ◽  
Structural Studies ◽  
Methylene Unit ◽  
Asymmetric Coupling ◽  
New Applications ◽  
Very High

Very high asymmetric inductions result in the Pd-catalyzed intramolecular arylation of amides to give 3,3-disubstituted oxindoles when new in situ-generated chiral N-heterocyclic carbene (NHC*) ligands are employed. Structural studies show that conformational locking to minimize allylic strain is the key to understanding the function of these ligands. New applications of these ligands in the frontier area of asymmetric coupling reactions involving C(sp3)–H bonds are detailed. Highly enantioenriched fused indolines are accessible using either preformed- or in situ-generated Pd-NHC* catalysts. Remarkably, this occurs at high temperature (140–160 °C) via excellent asymmetric recognition of an enantiotopic C–H bond in an unactivated methylene unit.

ChemInform Abstract: Structural Studies of a Cubic, High-Temperature (α) Polymorph of Pb2GeS4 and the Isostructural Pb2-xSnxGeS4-ySey Solid Solution.

ChemInform ◽  
2010 ◽  
Vol 33 (19) ◽  
pp. no-no
Author(s):  
K. M. Poduska ◽  
L. Cario ◽  
F. J. DiSalvo ◽  
K. Min ◽  
P. S. Halasyamani
Keyword(s):  
Solid Solution ◽  
High Temperature ◽  
Structural Studies

scholarly journals Changes in Ginsenoside Compositions by High Temperature Processing under Various Soaking Conditions

2017 ◽  
Vol 23 (5) ◽  
pp. 689-696
Author(s):  
Gwi Yeong Jang ◽  
Yoon Jeong Lee ◽  
Meishan Li ◽  
Min Young Kim ◽  
Sang Hoon Lee ◽  
...  
Keyword(s):  
High Temperature ◽  
High Temperature Processing
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