The Fundamental Principles and Techniques of X-Ray Stress Measurement and Current Developments in the Field. I: The Fundamental Principles and Techniques of X-Ray Stress Measurement.
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Materials Literature
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Pinch-porphyrins, new spectroscopic and kinetic models of peroxidases
The novel complexes [1,9-bis(2-pyridyl)-2,5,8-triazanonane]-(protoporphyrinato)iron(III) 4, -(mesoporphyrinato)iron(III) 5 and -(deuteroporphyrinato)iron(III) 6 were synthesized from the parent compounds chloro-(porphyrinato)iron(III) 1, -(mesoporphyrinato)iron(III) 2 and -(deuteroporphyrinato)iron(III) 3 and 1,9-bis(…
Electrical tree tests. Probabilistic inference and insulating material evaluation
In this paper the application of neural network (NN) to the probabilistic inference of partial discharge (PD) phenomena generated from electrical tree growth is presented. On the basis of experimental results of measurements of trees occurring in a needle-plane arrangement, stochastic quantities are derived, which are…
Reducing hysteresis in magnetostrictive-piezoelectric magnetic sensors
In this paper, we present a method to avoid hysteresis in magnetostrictive-piezoelectric sensors. It is based on the application of an alternating magnetic field of a frequency different than the piezoelectric exciting frequency that supplies enough energy to overcome any domain wall pinning. The signal is filtered wi…
Structure dependence of the low‐lying excited states and the first dipole hyperpolarizability of phenol blue
(CH3)2NC6H4NC6H4O is a merocyanine dye that exists in resonance between the two extreme conformations of a keto and an eno form. The keto form is more stable in the gas phase and the eno form is believed to be more stable in solution. We show that the keto form can prevail in nonpolar solvents, but in polar solvents l…
Electromagnetic forces calculation on power transformer windings under short circuit
This paper aims to determine the electromagnetic forces acting in a power transformer, when a current corresponding to the first peak of a three‐phase circuit flows in the windings. The finite element method for the evaluation of the field’s values is applied, and the electromagnetic forces acting in a power transform…
The Stabilization of C3N4: New Development of Such a Material as Macroscopic Sample.
Materials with high elements (C, B, N. . . ) appear to be a great interest for the future. The most dense forms of these materials are characterized by exceptional physico-chemical properties (diamond, c-BN, β-C3N4. . . ). The last material (C3N4) issued from "ab-initio" calculations has instigated the development of…
Two new cation radical bis(ethylenedithio)tetraselenafulvalene (BETS) salts, α-(BETS)6Bi3Cl12·PhCl and (BETS)2Bi2Cl8: synthesis, structure and conducting properties. First characterisation of the new trinuclear anion [Bi3Cl12]3−
Two new radical cation salts, (BETS)6Bi3Cl12·PhCl 1 and (BETS)2Bi2Cl8 2, where BETS is bis(ethylenedithio)tetraselenafulvalene, have been obtained and their structures and conducting properties studied. Salt 1 has a layered structure, consisting of radical cation layers of the α type, and segregated anion sheets conta…
The modulation of cellular responses to poly(2-hydroxyethyl methacrylate) hydrogel surfaces: phosphorylation decreases macrophage collagenase production in vitro
We examined the regulation of collagenase production by the monocyte/macrophage THP-1 cell line when these cells were exposed to poly(2-hydroxyethyl methacrylate) (PHEMA) hydrogel surfaces with different chemistries and morphologies. Tissue culture modified polystyrene (TCP), used as a control surface, induced the max…
Properties of styrene-maleic anhydride copolymers containing wood-based fillers
Recycled newsprint (ONP) and dry process aspen fiber were combined with styrene maleic anhydride (SMA) copolymers containing either 7 or 14 percent maleic anhydride. The fiber-filled SMA composites were equivalent or superior to unfilled SMA in strength, stiffness, and notched Izod impact strength. ONP performed surpr…
Case-hardening Medium Carbon Steel for Tough and Long Life Bearing under Severe Lubrication Conditions
It is known these days that case-hardening bearings have a longer life than through-hardening ones under severe lubrication conditions (i.e. mixing-in of foreign particles in the lubrication oil). To explain this fact, we first presented the mechanism of stress relaxation at the debris dent edge [1]. According to test…
Calculating Center-Glass Performance Indices of Windows
© 2015 ASHRAE (www.ashrae.org). Published in ASHRAE Transactions, Volume 121, Part 2. For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAE's prior written permission.
Zur Kristallchemie von Telluraten mit Mn2+ im kationischen und anionischen Teil der Kristallstruktur: (Mn2,4Cu0,6)TeO6, Ba2MnTeO6 und Pb(Mn0,5Te0,5 )O3 / On the Crystal Chemistry of Tellurates Containing Mn2+ in the Cationic and Anionic Part of the Crystal Structure: (Mn2,4Cu0,6)TeO6, Ba2MnTeO6 and Pb(Mn0,5Te0,5)O3
Single crystals of (Mn 2.4 Cu 0.6 )TeO 6 (I), Ba 2 MnTeO 6 (II) and Pb(Mn 0.5 Te 0.5 )O 3 (III) have been prepared by crystallization from fluxes. X-ray investigations led to rhombohedric symmetry (I): R3̄, (II): R3̄m with the trigonal lattice constants (I): a = 8.826(1), c = 10.687(2) Å, Z = 2. (II): a = 5.817(8), c…
Behavior of Cutting Heat in High Speed Cutting.
(1) 切込みや逃げ面接触長さを変化させることにより, 切屑, 被削材, 工具への切削熱の流入割合を求めることができた.(2) 切削熱の切屑への流入割合は, 切削速度の上昇とともに増加し, 被削材, 工具へは減少していく.(3) 高速切削になるにつれて, 逃げ面での摩擦による発熱は無視できなくなる.
Effect of alkali metals added to Cu ion-exchanged Y-type zeolite catalysts in the gas-phase catalytic oxidation of benzyl alcohol
The effect of alkali metals added to Cu ion-exchanged Y-type (Cu-NaY) zeolite catalysts on the oxidation activity and the selectivity is investigated using the gas-phase catalytic oxidation of benzyl alcohol as a model reaction. The added alkali metals such as K have been found to promote significantly the catalytic o…
Attempted preparation of diamond-like carbon nitride by explosive shock compression of poly(methineimine)
Explosive shock compression of poly(methineimine) produced a large portion of amorphous graphitic carbon nitride of composition CN 0.2 and small amounts of diamond-like carbon containing a slight amount of nitrogen. Codeposition of the two materials suggests the possibility of cubic phase transformation of heterocycli…
Chemical interactions between strontium-doped praseodymium manganite and 3 mol% yttria-zirconia
The interfacial reaction between (Pr 0.8 Sr 0.2 ) y MnO 3 (PSM, y=0.9, 1.0, 1.05) film and 3 mol% yttria tetragonal zirconia (TZ3Y) substrate has been studied at 1200 and 1400°C in air. A diffusion layer of Pr and Mn in zirconia, which was identified to be a cubic phase of zirconia, was detected in all specimens. When…
NMR study of electron transfer between paramagnetic complexes Kinetics of the self-exchange reaction [Fe3O(O2CCMe3)6(py)3]+/0 (py=pyridine)
The kinetics of the electron transfer self-exchange reaction [Fe3O(O2CCMe3)6(py)3]+ + [Fe3O(O2CCMe3)6(py)3] ⇄ [Fe3O(O2CCMe3)6(py)3] + [Fe3O(O2CCMe3)6(py)3]+ have been measured by NMR line broadening. Both reactants are paramagnetic and it was possible to measure broadening of lines of each component by exchange with t…
Influence of pH on Phosphate Intercalation in Zinc-Aluminum Layered Double Hydroxide
The exchange of chloride ion by phosphate ions in [Zn-Al-Cl] layered double hydroxide was investigated using X-ray diffraction and infrared spectroscopy. The effects of the pH of the solution containing the phosphate ions on the ion exchange was studied. The best sample in terms of crystallinity, was obtained at pH 8.…
Torque computation of hysteresis motor using finite element analysis with asymmetric two dimensional magnetic permeability tensor
This paper deals with the analysis of the generated torque of the hysteresis motor using finite element method, The material property of the hysteresis ring in the hysteresis motor is characterized by the asymmetric two dimensional magnetic permeability tensor. The torque has been computed effectively by using permeab…