Novel photosensitive glasses
(Novel photosensitive glasses / Ebendorff-Heidepriem, H. et al.) From Glastech. Ber. Glass Sci. Technol. 75 C2 (2002)54-59 by courtesy of the German Society of Glass Technology(DGG).
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Convection Effects in Three-Dimensional Dendritic Growth
A phase-field model is developed to simulate free dendritic growth coupled with fluid flow for a pure material in three dimensions. The preliminary results presented here illustrate the strong influence of convection on the three-dimensional (3D) dendrite growth morphology. The detailed knowledge of the flow and tempe…
Conversion of amorphous WO 3−x into WS 2 nanotubes
Removal of the carbon template from WS2-coated multi-walled carbon nanotube (MWCN) composites, produced WS2 nanotubes with intriguing microstructures. TEM characterisation shows that the intermediate phases of amorphous WO3−x-WS2 nanostructures, support the previously proposed growth model for WS2 nanotubes on MWCNs.
A Novel Low Wafer Stress i-Line Definable Polyimide.
To solve a recent technical problem relating to larger-size wafer production and thinner packaging technology, a new photodefinable polyimide, which can give smaller wafer bow (curvature) after curing and also can attain finer pattern performance, is designed based on xanthene-structure dianhydride. This paper describ…
Design of a Piston Cylinder-Type High-Pressure Cell.
We constructed a hybrid piston cylinder-type high-pressure cell using a homemade NiCrAl alloy. It was designed as a hydrostatic pressure cell; 67 mm in length with an outer diameter of 25 mm to be used with a dilution refrigerator. We have succeeded in the resistivity measurement under hydrostatic pressure up to about…
Characterization of S-Sulfokeratein from Pig Hair and Its Use as a Modifier of Type I Collagen Gel
S-sulfokeratein is prepared through S-sulfonation after the cleavage of disulfide bonds in keratin using ditiothreitol in urea. S-sulfokeratein is composed of two fractions, matrix and microfibril components, and S-sulfokeratein from the matrix component (Bs) can regenerate disulfide bonds. In this study, the effects…
Radiation Induced Surface Activity Phenomenon: 2nd Report — Radiation Induced Boiling Enhancement
To delineate the effect of Radiation Induced Surface Activity (RISA) on boiling phenomenon, surface wettability in high-temperature environment or Leidenfrost condition and critical heat flux (CHF) of oxide metals irradiated by gamma rays were investigated. When the temperature of the heating surface reaches the wetti…
Sexual heterogeneity of the clones of Nitzschia longissima (Breb.) Ralfs (Bacillariophyta)
Crossing of 38 clones of Nitzschia longissima (Breb.) Ralfs (Bacillariophyta) isolated from the coastal zone of the Black Sea near Karadag (Crimea) was carried out under laboratory conditions. This species is widely distributed in seas and oceans. It was shown that sexual heterogeneity is characteristic of the studied…
Air Flow through a Weft Passage of Profile Reed in Air Jet Looms
An air jet loom equipped with a profile reed and sub-nozzles is able to weave wider fabrics at higher speed than other types. A study on the characteristics of airflow and behavior of the weft yam in the weft passage area of the profile reed during inserting the weft yam is very important. The velocity distributions o…
A Simple Model for Hydrogen Re-distribution in Zirconium-lined Fuel Claddings
A simple model of hydrogen diffusion and hydride precipitation was developed to estimate the radial re-distribution of hydrogen in zirconium-lined Zircaloy-2 claddings for light water reactors. Numerical calculation based on the model agreed well with experimental data and clearly showed that a slight difference of th…
Repair Welding of Irradiated Materials: Modeling of Helium Bubble Distributions for Determining Crack-Free Welding Procedures
In this paper, a computational simulation study is presented on the prediction of helium bubble evolution during repair welding of irradiated 304 stainless steel. Realistic spatial and temporal temperature and stress evolution during welding were obtained from simulation of the repair welding operation using the finit…
OPTICAL SECOND HARMONIC GENERATION IN POLYAZOMETHINE ETHER
Optical second harmonic generation in Polyazomethine ether has been observed experimentally. The complete syntheses as well as the spectral analyses are made to establish the physical properties of polyazomethine ether as a stable polymer. Experimental studies using a nanosecond pulse Q-switched 1.06 ; m Nd:YAG laser…
Mechanical and dielectric properties of styrene-butadiene rubber polyester short-fiber composites: Part II. Composites loaded with high abrasion furnace carbon black
The mechanical and dielectric properties of styrene butadiene rubber (SBR) reinforced with polyester (PE) short-fiber loaded with high abrasion furnace (HAF) carbon black in concentrations up to 60 phr have been investigated. The effect of ageing on these properties was also studied. It was found that the tensile stre…
Swelling behavior of hyaluronic acid and type II collagen hydrogels prepared by using conventional crosslinking and subsequent additional polymer interactions
Polymer-polymer interactions, such as hydrophobic and electrostatic interactions, were introduced into covalently crosslinked composite matrices consisting of an anionic polysaccharide, hyaluronic acid (HyA) and a cationic polypeptide, type II collagen. The matrices were covalently crosslinked using a water soluble ca…
Sensitization of Lanthanides by Nonnatural Amino Acids¶
The sensitization of Eu(III) and Tb(III) by ethylenediaminetetraaceticacid (EDTA)-derivatized tryptophan (Trp), 7-azatryptophan (7AW) and 5-hydroxytryptophan (5HW) has been examined. These Trp analogs were utilized in the present study because they can be incorporated into proteins in place of native Trp residues and…
Transpassive Dissolution Mechanism of Ni-Based Alloys in a Simulated Bleaching Solution
Transpassive Dissolution Mechanism of Ni-Based Alloys in a Simulated Bleaching Solution : Effect of Alloying Elements , Betova, Iva, Bojinov, Martin, Kinnunen, Petri, Laitinen, Timo, Pohjanne, Pekka, Saario, Timo, Vilpas, Martti
Studi Eksperimental Pengaruh Paramater Proses Pencetakan Bahan Plastik Terhadap Cacat Penyusutan (Shrinkage) Pada Benda Cetak Pneumatics Holder
Pneumatics holder which supports all pneumatics components requires high tolerance in dimension.Therefore, perfect design process which means accurate process parameter selection will enable us to produce as cast holder as required.This experimental study is to produce pneumatics holder by combining several process pa…
Static and dynamic force balancing in reciprocating active magnetic refrigerators
One of the most obvious disadvantages with a reciprocating Active Magnetic Regenerative (AMR) refrigerator is the production of large unbalanced forces. Typical reciprocating AMR geometries use a single super-conducting solenoid with two AMR beds moving along the solenoid axis and spaced some distance apart. In this c…
Looking ahead—a new generation of high performance refractory ceramics（1—10）
It is expected that in the new century, to cope with developments of new high temperature technologies, a new generation of high performance refractory ceramics will emerge and flourish which should include the following (1) oxide and nonoxide composites characterized by a unique combination of high hot strength, high…
Scale and Naphthenate Inhibition in Deep-Offshore Fields
Scale and Naphthenate Inhibition in Deep-Offshore Fields Alexandre Goldszal; Alexandre Goldszal Total Fina Elf Search for other works by this author on: This Site Google Scholar Christian Hurtevent; Christian Hurtevent Total Fina Elf Search for other works by this author on: This Site Google Scholar Guy Rousseau Guy R…