摘要:
A method of cultivating floating animal cells, such as lymphocytic cells, medullary tumor cells, medullary tumor cells obtained by the cell fusion with other cells, lymphoma cells, leukemic cells, leukocytic cells, mastocarcinoma cells, liver cancer cells, etc., which comprises introducing a culture medium in a cell culture unit comprising a shell and a plurality of hollow fibers enclosed in the shell, said hollow fiber being open at either end outside of the shell and having a pore diameter of from about 20 A to 10.sup.5 A, wherein the culture medium passes through the interior of the hollow fibers and the floating animal cells are cultivated in the space between the shell and the hollow fibers is disclosed. A floating animal cell culture unit for the method is also disclosed.
摘要:
A method for synthesizing trioxane by heating and reacting an aqueous formaldehyde solution in the presence of a heteropolyacid. As the heteropolyacid, there is preferably used one that contains, as a coordinating element or coordinating elements, W, Mo, V or Nb alone or two or more of them.
摘要:
When current collecting wires are laid in parallel with each other on a solar cell on which a photosensitive film is formed, a wire tension adjusting mechanism is provided which includes a bobbin holder shaft pivotally held on the side of a frame in a bobbin cassette in a wiring apparatus and a wire bobbin is detachably fixed on the bobbin holder shaft. The wire tension adjusting mechanism further includes a pre-load means for adjusting the torque of the bobbin holder shaft and the tension of each current collecting wire to be drawn out from the wire bobbin held by the bobbin shaft is adjusted.
摘要:
An external force detection device includes a weight portion, a supporting portion, and a beam portion provided in an SOI substrate which includes an upper layer and a lower layer that are capable of being etched with a first etching gas and sandwich an intermediate layer that is capable of being etched with a second etching gas. The weight portion is displaced in accordance with an external force to cause the beam portion to deform. The upper layer in a gap portion between the weight portion and the supporting portion is etched. The lower layer in the gap portion and the lower layer below the beam portion are etched. The intermediate layer in the gap portion is then etched. The groove formed by etching the upper layer has a multidirectional two-dimensional shape.
摘要:
The present invention relates to a method of predicting response of a cancer cell tissue to IGF-IR treatment. The inventors have observed a direct relationship between the expression of survivin, ErbB3 and E-cadherin and the response of cancer cells to IGF-IR treatment. This observation permits screening of tumor cells prior to treatment to determine whether the cancer will respond to IGF-IR treatment, and/or to monitor the efficacy of such a treatment by conducting “before and after” assessments of the expression of these markers
摘要:
A spark plug according to the invention has a length and an outer side surface. The outer side surface includes a plurality of closed band-shaped regions arranged in the lengthwise direction of the spark plug, within each of which a plurality of identical marks, which represent the same piece of information concerning the spark plug, are formed at predetermined intervals in a circumferential direction of the spark plug. Further, the marks within each of the regions represent the piece of information different from that represented by the marks within any other one of the regions, and each of the marks within each of the regions is aligned in the lengthwise direction of the spark plug with one of the marks within any other one of the regions. With such formation of marks, the spark plug can be accurately identified without rotating it to a specific position during the identification process.
摘要:
A food washing apparatus of the invention includes an ozonized water generator (10), a cylindrical washing tank (1) in which the food materials are put and which can rotate to wash the food materials, a drainage part (4) formed at a part of the washing tank (1) and including openings to such a degree that water passes through and the food materials do not pass through, and wash water pipings (2, 9) which are inserted and disposed in the washing tank (1) in an axial direction and in which water spray holes (2a, 2a) for spraying wash water including at least ozonized water are formed, and while at least one part of the wash water sprayed from the wash water pipings (2, 9) is draind from the washing tank (1) every rotation of the washing tank (1), washing of the food materials is performed. Further, there is also a method in which a receiving tank (8) for wash water drained from the washing tank (1) is provided, and at least one part of the wash water in the receiving tank (8) is returned to an inlet side of the ozonized water generator (10) to perform cyclic use of the wash water.
摘要:
A spark plug is disclosed as having a metal shell, a porcelain insulator fixedly secured to the metal shell, a center electrode and a ground electrode providing a spark discharge gap with the center electrode. The porcelain insulator has a through-bore partially exposed from an end face of the ground electrode in a surface area S1, as viewed from a distal end of the spark plug, and having a total surface area S2 falling in the relationship S1/S2≦0.3. The center electrode protrudes from the porcelain insulator with a protruding length L under the relationship L≦0.6 mm. A minimal value Hmin and a maximal value Hmax in distance between the ground electrode and the end face of the porcelain insulator lies in the relationship Hmax/Hmin≦1.3. Wall thickness T between the through-bore and an outer periphery of the porcelain insulator lies in the relationship T≦0.7 mm.
摘要:
A preheat device (160) is provided to execute, before forming bumps (16) to electrode parts (15), a pre-formation temperature control for bonding promotion to promote bonding between the electrode parts and the bumps during bump formation. Metal particles of the electrode parts can be changed to an appropriate state before the bump formation. Phenomenally, a bonding state between the electrode parts and the bumps can be improved as compared with the conventional art. In a further arrangement of the present invention, semiconductor components with bumps can be heated under a bonding strength improvement condition by a bonding stage (316) through controlling the heating by a controller (317).
摘要:
To eliminate breakage of electronic parts or defective bonding, and enhance reliability of electronic parts, in regulation of electronic parts in bump bonding device. A bump bonding device comprising a stage 1 for mounting and heating an electronic part, and a position regulating device including a rotatable regulating plate 2 having a side for positioning the electronic part, a plate 4 having a side for positioning the electronic part in collaboration with the regulating plate, and a regulating spring 5 for applying a regulating force to the regulating plate in order to press the electronic part to the plate 4.