摘要:
A pressure sensor includes a cylindrical sensor package, glass base, sensor chip, and electrode pins. The glass base is seal-bonded to an inner surface of the sensor package to close a space in the sensor package. The sensor chip is mounted on the glass base and has electrodes and a metal bonding portion on its surface opposing the glass base. The bonding portion is die-bonded to a surface of the glass base. The electrode pins are arranged to oppose the electrodes and buried to extend through the glass base. One end of each lead member exposed from the surface of the glass surface is electrically bonded to a corresponding electrode.
摘要:
Disclosed are a method of solidifying a low-boiling-point hydrocarbon, wherein the low-boiling-point hydrocarbon (including hydrocarbons which are gaseous at ordinary temperature) is brought into contact with a metal salt of an aliphatic carboxylic acid, and if necessary a high-boiling-point hydrocarbon, suspended in water, to form a solid aggregate substance, a method of handling the low-boiling-point hydrocarbon, wherein the solid aggregate substance is stored or transported, and a method of regenerating the low-boiling-point hydrocarbon, wherein the solid aggregate substance is decomposed by opening or heating, to obtain the low-boiling-point hydrocarbon. According to the methods, a wide variety of gaseous and highly volatile liquid hydrocarbons can be safely and easily solidified without using harmful reagent, and during storage, transportation, etc., the gaseous hydrocarbons and highly volatile liquids can be handled as a solid material. Further, by releasing under atmospheric pressure at room temperature or by heating if necessary, the original hydrocarbons can be easily obtained.
摘要:
An aliphatic copolyester having a plurality of first: ester units of the formula: —CO—[R1]t—CO—O—R2—O— wherein R1 represents a divalent aliphatic group, R2 represents a divalent aliphatic and t is an integer of 0 or 1, and a plurality of second ester units of the formula: wherein R1 and t are as defined above and R3 represents an aliphatic group. The molar ratio of the first ester unit to the second ester unit is 90:10 to 99.9:0.1. The copolyester is produced by reacting an aliphatic diester with an aliphatic glycol and with a monoacylated glycerin under ester exchanging conditions.
摘要翻译:具有多个下式的第一酯单元的脂族共聚酯:其中R1表示二价脂族基团,R2表示二价脂族基,t表示0或1的整数,以及多个下式的第二酯单元:其中 R 1和t如上所定义,R 3表示脂族基团。 第一酯单元与第二酯单元的摩尔比为90:10至99.9:0.1。 共聚多酯是通过脂肪族二酯与酯交换条件下的单酰化甘油反应制备的。
摘要:
A process of producing a polyester or copolyester, wherein at least one cyclic lactone of the following formula (I): wherein n is an integer of 1-4 provided that n is not 2 when only one cyclic lactone is used, is polymerized under a pressure of at least 200 MPa in the absence of any catalyst or in the presence of a metal-free polyesterification catalyst.
摘要:
An apparatus for phototaking the image of an eye to be examined has an image pickup element for picking up the image of the eye to be examined, a first signal converting system for converting an image signal from the image pickup element into a signal for animated picture display, a second signal converting system for converting the image signal from the image pickup element into a digital image signal, and an image pickup element drive system for executing the drive systems of the image pickup element corresponding to the first and second signal converting systems.
摘要:
An oven for continuously heating a cord, which oven has a housing defining an internal space for treatment of a cord. The housing has an inlet and an outlet communicating with the internal housing space and between which a cord being heated passes in a predetermined path. A heating chamber is defined within the internal housing space through which a cord being heated travels between the housing inlet and outlet. A first partition within the internal housing space is located beneath at least a part of the predetermined path and defines an upper wall of a hot air supply chamber within the internal housing space. The first partition has an elongate slit therethrough that resides beneath, and extends parallel to, the part of the predetermined path through which slit air in the hot air supply chamber is communicated to the heating chamber. An inlet opening in the housing communicates heated air to the hot air supply chamber. The housing has a second partition with first and second openings spaced in a lengthwise direction relative to the slit for causing heated air in the heating chamber to branch into each of the first and second openings. An air moving element is provided. There is further provided a conduit system for directing air from the first and second openings to the air moving element and for directing air accelerated by the air moving element to the hot air supply chamber. There is additionally a heater for air directed into the heating chamber.
摘要:
A capacitive pressure sensor is provided which is capable of highly accurately and reliably measuring pressure over a wide range from an extremely low level to a high level without being affected by environmental changes. The capacitive pressure sensor is constructed of a first diaphragm; a second diaphragm arranged in parallel with the first diagram; a diaphragm support arranged between the first and second diaphragms for supporting the first and second diaphragms along the periphery thereof to define a space isolated from the outside; a plurality of pillars having respective ends fixed on the opposing surfaces of the first and second diaphragms for securely supporting the first and second diaphragms; a movable electrode formed on one of the opposing surfaces of the first and second diaphragms; and a fixed electrode formed in the space without contacting with the plurality of pillars and securely supported by the diaphragm support. Pressure values measured by the capacitive pressure sensor are substantially free from errors due to fluctuations in atmospheric pressure and errors caused by aging changes of residual stress on the bonding interface.
摘要:
An apparatus capable of simply and accurately measuring cornea refractive power and eye axis length at least necessary to select a proper in-the-eye lens for an eye to be examined without moving a slidable bed in a horizontal plane.
摘要:
A watch band the effective length of which is elongated so that the watch can be worn on a ski glove is disclosed. An end of the band is folded back at a spring loaded pin attached to a case of a watch at one side thereof and connected to the pin. A middle portion of the band is folded back at a connecting link having a slit. The other end of the band is secured to an adjusting link and fixed to a middle portion of the band by a grasping portion provided on the adjusting link.
摘要:
A feed additive for fish cultivation, which contains, as effective components, a proteinase, lipase, and mixture of three kinds of bacteria consisting of lactic acid producing microbe, saccarificating microbe, and butyric acid producing microbe.