摘要:
Piezoelectric ceramic materials comprising a ternary fundamental solid solution of 0.5 to 5.0 mol % of Pb(Y.sub.1/2 Nb.sub.1/2)O.sub.3, 40.0 to 50.0 mol % of PbTiO.sub.3, and 45.0 to 59.5 mol % of PbZrO.sub.3 are described. In the ceramic materials, part of Pb in the solid solution is substituted with 5.0 to 15.0 mol % of Sr, and at least one member selected from the group consisting of Nb.sub.2 O.sub.5, WO.sub.3, La.sub.2 O.sub.3, TaO.sub.3, Bi.sub.2 O.sub.3, Tb.sub.4 O.sub.7, NdO and Pr.sub.6 O.sub.11 is further contained in the solid solution in an amount of 0.1 to 2.0 wt % of the solid solution.
摘要翻译:描述了包含0.5〜5.0mol%的Pb(Y1 / 2Nb1 / 2)O3,40.0〜50.0mol%的PbTiO3和45.0〜59.5mol%的PbZrO3的三次基本固溶体的压电陶瓷材料。 在陶瓷材料中,固溶体中的Pb的一部分被5.0〜15.0mol%的Sr取代,选自Nb 2 O 5,WO 3,La 2 O 3,TaO 3,Bi 2 O 3,Tb 4 O 7,NdO,Pr 6 O 11中的至少1种是 进一步在固溶体中含有0.1〜2.0重量%的固溶体。
摘要:
A ceramic structure including a metallic body such as an electric heater. The metallic body is retained in a retaining portion of the ceramic structure in such a manner that a minute cavity is provided around the metallic body. This ceramic structure is produced by forming an organic film around the metallic body, preparing a ceramic structure including the metallic body surrounded with the organic film in a retaining portion of the ceramic structure, and heating the resultant structure so as to decompose the organic film, whereby a minute cavity is formed around the metallic body.
摘要:
An exhaust gas filter is formed of ceramic honeycomb structure and provided with large number of passages defined by porous thin separator walls. The passages are composed of exhaust gas inlet passages and outlet passages which are alternately arranged. The honeycomb structure is further provided with exhaust gas blowing passages through which one part of exhaust gases entering into the inlet passages is discharged, without passing through minute pores of the porous thin separator walls, resulting in reducing the pressure loss of the exhaust gases.
摘要:
An exhaust gas cleaning device for an internal combustion engine comprises a housing provided with an inlet port which is communicated with an exhaust pipe of an internal combustion engine and an outlet port, two particulates collecting members disposed in two independent exhaust gas flowing passages which are communicated with the inlet port through an inlet chamber and with the outlet port through an outlet chamber, a butterfly valve provided in the inlet chamber for alternately directing the exhaust gases into either one of the exhaust gas flowing passages and a heated air supplying means for burning off the particulates collected by the particulates collecting members, which is provided with a heated air outlet port opening into the inlet chamber so as to be opposed to the inlet port with the butterfly valve therebetween.
摘要:
A method for producing a filter having partially different apparent densities comprises the steps of assembling at least two kinds of foamed bodies having different cell densities, which are formed of an organic compound such as urethane, into a three dimensional structure, immersing the obtained composite body into a slurry composed of ceramic such as cordierite so that the slurry is attached to the surface of the composite body, and firing the composite body to which the slurry is attached, to burn off the foamed bodies. By selecting the portion to be formed into high density, mechanical strength and exhaust gas purifying efficiency of the filter can be improved.
摘要:
The present invention directs to a non-aqueous electrolyte solution, including (I) at least one compound selected from the group consisting of fluorinated linear sulfones and fluorinated linear sulfonic acid esters, and (II) an electrolyte salt. Such a non-aqueous electrolyte solution has high oxidation resistance, minimizes its decomposition even when hydrofluoric acid is produced. Also, the solution is less likely to cause, in the case of being used for a secondary cell, swelling of the cell and lowering of the battery performance.
摘要:
It is an object of the present invention to provide a specimen observation method, an image processing device, and a charged-particle beam device which are preferable for selecting, based on an image acquired by an optical microscope, an image area that should be acquired in a charged-particle beam device the representative of which is an electron microscope. In the present invention, in order to accomplish the above-described object, there are provided a method and a device for determining the position for detection of charged particles by making the comparison between a stained optical microscope image and an elemental mapping image formed based on X-rays detected by irradiation with the charged-particle beam.
摘要:
It is an object of the present invention to investigate what kinds of structures a sugar chain has by performing a sugar chain structural analysis of a glycoprotein produced in a transgenic silkworm. For the sugar chain of the glycoprotein produced in the transgenic silkworm, a glycoprotein having a sugar chain structure in which fucose is not linked to N-acetylglucosamine at a reducing terminal of the sugar chain is obtained. In addition, a glycoprotein having an almost completely humanized sugar chain structure is obtained by further integrating GalT gene into this transgenic silkworm.
摘要:
The present invention provides a method of producing an antibody-producing hybridoma, which includes fusing a B cell immunized in vitro and a myeloma cell, and which is more efficient and practical than the conventional methods, more specifically a method of producing an antibody-producing hybridoma, which includes fusing a B cell immunized with an antigenic substance in the coexistence of a cytokine and a glycolipid in vitro, and a myeloma cell, and use thereof.
摘要:
A method of operating an electron microscope under a high temperature and the electron microscope are provided. The electron microscope can stably set and efficiently heat a sample to observe and measure high temperature physical properties such as phase transformation, phase transition and the like required for development of a heat resistant material. In the method of operating the electron microscope and the electron microscope, a sample to be observed is set so as to position at a central hole of a double spiral flat filament, the detachable heating stage is fixed to the heating holder using screws of a pivot, and the heating stage is tilted by vertical movement of a crank-shaped arm. The heating stage and the arm are insulated from each other by an insulating body, and current from a power source is conducted by a conductor wire to heat the filament.