نتایج جستجو برای: cored
تعداد نتایج: 1190 فیلتر نتایج به سال:
The emission of dusts and gases, which are generated during tubular cored wire welding and which are hazardous to health and the environment, were studied. Tests included various kinds of tubular electrode wires used for welding steel, that is, rutile flux cored wires, basic flux cored wires, and metal cored wires for welding unalloyed, low-alloy, and high-alloy steels as well as self-shielded ...
TWIP-cored three-layer steel sheets were newly fabricated by hot rolling of TWIP steel sheet surrounded by low-carbon (LC) or interstitial-free (IF) steel sheets. TWIP/LC or TWIP/IF interfaces were well bonded without pores or voids, while a few pearlites were thinly formed along the interfaces. The strengths and elongation of the TWIP-cored sheets increased as the volume fraction of TWIP-cored...
Pedicle screws are the main fixation devices for certain surgeries. Pedicle screw loosening is a common problem especially for osteoporotic incidents. Cannulated screws with cement augmentation are widely used for that kind of cases. Dual lead dual cored pedicle screw has already given promising pullout values without augmentation. This study concentrates on the usage of dual lead dual core wit...
The author is investigating several techniques to get more induced secondary voltage than given by Faradays law. He observed that the induced secondary voltage in an iron cored copper coil can be increased 1. By increasing the temperature of the core and 2. By enclosing the iron cored coil in an aluminium tube [1,2]. Another method for increasing induced secondary voltage by using multiple prim...
This study simulated the performance of Cu-cored solder joints in microelectronic components subjected to the extreme thermal cycling conditions often encountered in the automobile industry by comparing the thermal cycling behavior of Cu-cored solder joints containing two different coating layers of Sn– 3.0Ag and Sn–1.0In with that of a baseline Sn–3.0Ag–0.5Cu solder joint under a severe temper...
Electron microscopy of the vertical lobe of octopus brain shows that the synaptic knobs of axons with penkarya in the median superior frontal lobe have synaptic vesicles, approximately 28 % of which are dense-cored (or granulated). In contrast, the endings of the amaenne neurons in the vertical lobe and the endings in the retina and optic lobe, both of which are derived from the retinal visual ...
Day-night differences in the ultrastructure of pineal neuronal elements were quantitated in the rat and the chick--two species that exhibit important differences in adrenergic control of melatonin synthesis. Area densities of small clear vesicles (40-60 nm) and small dense-cored vesicles (40-60 nm) in nerve terminals were significantly reduced during the night in the rat. In the chick, there we...
Platinum-cored ferritins were synthesized as electrocatalysts by electrochemical biomineralization of immobilized apoferritin with platinum. The platinum cored ferritin was fabricated by exposing the immobilized apoferritin to platinum ions at a reduction potential. On the platinum-cored ferritin, oxygen is reduced to water with four protons and four electrons generated from the anode. The ferr...
Polyglycerol, porphyrin-cored dendrimers were synthesized by the click reaction of azide-cored polyglycerol dendrons and octaazidoporphyrin 19. The dendrons were synthesized divergently starting with TBDPS protected allyl alcohol 2. Two, three and four cycles of dihydroxylation-allyl etherification gave dendrons [G-2.5] 6, [G-3.5] 8, [G-4.5] 11, with four, eight, and sixteen alkene groups, resp...
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