摘要:
A condenser-evaporator is constituted in such a way that first fluid chambers and second fluid chambers are alternately formed by multiple vertical partitions and a liquid in the first fluid chambers exchange heat with a fluid in the second fluid chambers, characterized in that a plurality of heat exchanger plates are arranged in multiple stages in the first fluid chambers to form a liquid passage having one end open, a plurality of liquid reservoirs communicating with the liquid passage and having a top open are provided in multiple stages on a side of the other end of the liquid passage, and a liquid is introduced in the liquid passage for heat exchange while being supplied to the liquid reservoir in each stage. Accordingly, the depth of the liquid is shallow so as to prevent a boiling point elevation due to the liquid head pressure, thus improving the efficiency of the condenser-evaporator.
摘要:
An epitaxial growth structure for a semiconductor light-emitting device includes a sapphire substrate having a (0110) face (substantially M face), and a wurtzite type Group III nitride mixed crystal semiconductor single crystal film epitaxially grown on the substrate. A semiconductor light-emitting device includes a sapphire substrate having a (0110) face (substantially M face), a wurtzite type Group III nitride mixed crystal semiconductor single crystal film epitaxially grown on the substrate, an insulating film formed on the single crystal film, and a metal electrode formed on the insulating film.
摘要:
Disclosed are a cold-rolled high strength steel sheet having excellent cold workability under the as-annealed condition which consists essentially of, by weight, 0.03 - 0.2% C, 0.6 - 1.5% Si, 1.3 - 3.0% Mn, 0.01 - 0.25% Nb or 0.01 - 0.2% Ti or 0.01 - 0.3% Nb plus Ti, and the remainder of Fe with inevitable amounts of impurities, and the method of making the same. The steel sheet can be as thin as 3mm or less while possessing a high tensile strength of 50 to 100 kg/mm.sup.2, and is extremely suitable for use as a constructional material of car bodies.