摘要:
An alkali-free glass composition for a photoetching mask is described, which comprises, all by mol, 55 to 65% SiO.sub.2, 7 to 11% Al.sub.2 O.sub.3, 1 to 11% PbO, 7 to 20% CaO, 3 to 13% MgO, 3 to 13% ZnO, 0 to 3% ZrO.sub.2, 0 to 3% F.sub.2, 0 to 5% As.sub.2 O.sub.3, and 0 to 5% Sb.sub.2 O.sub.3. This glass is free from defects such as pinholes, has a relatively low coefficient of thermal expansion and contains no air bubbles, and a photoetching mask composed of the glass composition.
摘要翻译:描述了一种用于光刻掩模的无碱玻璃组合物,其包括全部为55至65%的SiO 2,7至11%的Al 2 O 3,1至11%的PbO,7至20%的CaO,3至13%的MgO, 3〜13%的ZnO,0〜3%的ZrO2,0〜3%的F2,0〜5%的As2O3和0〜5%的Sb2O3。 该玻璃没有诸如针孔的缺陷,具有相对低的热膨胀系数并且不含气泡,以及由玻璃组合物构成的光刻掩模。
摘要:
A use condition of gas equipment is monitored. An abnormality determination unit 26 determines whether or not a use flow volume obtained by detecting a flow velocity obtained by measuring a signal transfer time in a medium using a flow velocity detection unit 17 and converting the detected flow velocity into a flow volume using a flow volume calculation unit 25. When the shutoff unit 27 shuts off a fluid path 1 when it is determined that there is abnormality, a return signal is output from a return unit 28 to a shutoff unit 27 in order to use the gas again by opening the fluid path. Simultaneously, when a return time-counting unit 29 starts the time-counting operation, and then, a predetermined time period has been elapsed, the flow volume calculation unit 25 determines whether or not a predetermined flow volume of greater flows in order to identify whether or not all of the gas plugs of the gas equipment connected to the downstream of the gas shutoff apparatus 27 are closed. The leakage determination unit 30 determines that there is leakage when a predetermined flow volume or greater is detected, and a driving signal is output to the shutoff unit 27 to close the fluid path 1.
摘要:
A stream recording apparatus includes a reception unit configured to receive a transport stream containing TS packets which include PCRs and PTSs, a first storage unit configured to store the transport stream, an analysis unit configured to analyze the PCRs and the PTSs, a counter configured to count a STC on the basis of one of the PCRs, a calculation unit configured to calculate a reproduction time corresponding to a PTS if the PTS is on a same time base with reference to a STC obtained upon reception of the TS packet having the PTS, and to stop calculating the reproduction time corresponding to the PTSs if the PTSs is on a different timebase, and a second storage unit configured to store the reproduction time in association with the one of the PTSs.
摘要:
A muffler with a catalyst A muffler closure is detachably attached to the muffler body of the muffler. A thermal insulation acoustic material layer and a catalyst layer are mounted to an inner surface of muffler closure through a porous holding plate along exhaust gas passage.
摘要:
An internal combustion engine with an automatic starter for a portable working machine, wherein a reduction device is arranged at an end portion opposite to an output end of a crankshaft of the internal combustion engine, a generator being arranged at a side near the reduction device, the automatic starter being arranged in the proximity of a side portion of the internal combustion engine and being drivingly connected to the reduction device, a recoil-type starter being arranged coaxially with and adjacent to the end portion of the crankshaft.
摘要:
A Faraday rotation single-mode fiber having a high Verdet constant is disclosed, the core and the cladding of the fiber being made of a glass having the following composition: 26 to 38 mol % SiO.sub.2, 18 to 34 mol % B.sub.2 O.sub.3, 17 to 26 mol % Al.sub.2 O.sub.3, 18 to 32 mol % Tb.sub.2 O.sub.3, 0 to 5 mol % ZrO.sub.2, 0 to 5 mol % Ce.sub.2 O.sub.3, 0 to 5 mol % Pr.sub.2 O.sub.3, 0 to 5 mol % Dy.sub.2 O.sub.3 and 0 to 5 mol % Ho.sub.2 O.sub.3, provided that the total amount of the above ingredients is not less than 97 mol % and the total amount of Ce.sub.2 O.sub.3, Pr.sub.2 O.sub.3, Dy.sub.2 O.sub.3 and Ho.sub.2 O.sub.3 is 0 to 5 mol %.
摘要翻译:公开了具有高Verdet常数的法拉第旋转单模光纤,纤芯的芯和包层由具有以下组成的玻璃制成:26至38摩尔%SiO 2,18至34摩尔%B 2 O 3,17至26 摩尔%Al 2 O 3,18〜32摩尔%Tb 2 O 3,0〜5摩尔%ZrO 2,0〜5摩尔%Ce 2 O 3,0〜5摩尔%Pr 2 O 3,0〜5摩尔%Dy 2 O 3和0〜5摩尔%Ho 2 O 3 上述成分的含量不低于97mol%,Ce2O3,Pr2O3,Dy2O3和Ho2O3的总量为0-5mol%。
摘要:
A process for producing a novel cross-linked resin which comprises: reacting a bis(2-oxazoline) compound with a reactive compound which has at least one active hydrogen in the molecule, the reactive compound being at least one selected from the group consisting of a sulfonamide, an acid imide, an aromatic hydroxy-carboxylic acid and a bisphenol sulfone compound, in a molar ratio of the reactive compound to the bis(2-oxazoline) compound of not more than about 2, at an elevated temperature. About 5 to about 95 mole % of the reactive compound is replaceable by a dicarboxylic acid.The cross-linked resin may be usable for the production of machinery parts such as rolls and gears and embedded moldings of electrical machinery and apparatus parts as well as for electric insulating materials and dental uses. The cross-linked resin may further find applications in, for example, adhesives and various coating compositions.
摘要:
A new cross-linked polyester amide having structure in which the ester amide chain of the formula below: ##STR1## (wherein R and R' each are a bivalent hydrocarbon radical; n is a positive integer) as obtained by the reaction of a bis(2-oxazoline) compound and a dicarboxylic acid is contained in the polymer chain and at least 5% of its --NH-- group is cross-linked with a 2-oxazoline ring by ring-opening addition reaction.The cross-linked polyesteramide is tough and excels in abrasion resistance and solvent resistance and can be utilized in the molding of machinery parts such as rolls and gears and embedded molding of electrical machinery and apparatus parts as well as for electric insulating materials and materials for dental uses.The resin composition comprising the said cross-linked polyesteramide and about 3 to 95 weight % of reinforcements and/or fillers can provide the molding material having excellent mechanical properties, especially outstanding toughness, that cannot possibly be expected with conventional fiber-reinforced plastics and also exhibiting superior characteristics such as thermal properties.The resin composition can be utilized not only in the application fields for conventional fiber-reinforced plastics but also in the new application areas where conventional fiber-reinforced plastics have failed to achieve application development.