Abstract:
A three-dimensional simulation apparatus includes a memory configured to store form information of a sheet flexible object model formed of first polygons and another object model, an interference determination unit configured to determine whether the sheet flexible object model formed of the first polygons in three-dimensional simulation space interferes with the other object model on the basis of the form information stored in the storage unit, a polygon creation unit configured to form second polygons by dividing the sheet flexible object model in a longitudinal direction when it is determined that the sheet flexible object model interferes with the other object model, and a shape computation unit configured to determine a shape of the sheet flexible object model using the formed second polygons in consideration of a shape of the other object model.
Abstract:
A fluorine-containing polyether carboxylic acid amide represented by the general formula: CnF2n+1O(C3F6O)mRfCONHAr, wherein Rf is a fluorocarbon group having 1 to 2 carbon atoms, Ar is a nitrogen-containing heterocyclic group, n is an integer of 1 to 3, and m is an integer of 10 to 30, is produced by reacting a fluorine-containing polyether carboxylic acid fluoride represented by the general formula: CnF2n+1(C3F6O)mRfCOF, wherein Rf, n, and m are as defined above, with a nitrogen-containing heterocyclic amine compound represented by the general formula: ArNH2, wherein Ar is as defined above; wherein the reaction is carried out while a reaction temperature is first increased to 80 to 100° C., and then increased at a temperature increase rate that produces a temperature difference of 3 to 5° C. after 48 hours.
Abstract translation:由通式C n F 2n + 1 O(C 3 F 6 O)m R f CONHAr表示的含氟聚醚羧酸酰胺,其中,Rf是碳原子数1〜2的氟烃基,Ar是含氮杂环基,n是1的整数 至3,m为10〜30的整数,通过使由通式C n F 2n + 1(C 3 F 6 O)m R f COF表示的含氟聚醚羧酸氟化物,其中Rf,n和m如上定义而制备 与由以下通式表示的含氮杂环胺化合物:ArNH 2,其中Ar如上所定义; 其中反应在反应温度首先升高至80〜100℃的同时进行,然后以48小时后产生3〜5℃的温度差的升温速度升高。
Abstract:
A fluorine-containing polymer comprising a fluoroalkyl alcohol (meth)acrylic acid derivative represented by a general formula, CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR═CH2 (in the formula, R is a hydrogen atom or a methyl group, n is an integer of 1 to 6, preferably 2 to 4, a is an integer of 1 to 4, b is an integer of 0 to 3, and c is an integer of 1 to 3) containing in 5 to 100 wt % as a polymerization unit. A organic solvent solution or aqueous dispersion of the fluorine-containing polymer is effectively used as, for example, a surface-modifying agent such as a water- and oil-repellent or an oil barrier.
Abstract:
A terminally iodized polyfluoroalkane oligomer represented by the following general formula: CnF2n+1(CH2CF2)s+p(CF2CF2)t+rI [I] (wherein n is an integer of 1 to 6, s+p is an integer of 1 to 4, showing the number of vinylidene fluoride skeleton, and t+r is an integer of 1 to 6, showing the number of tetrafluoroethylene skeleton, the adjacent group to the CnF2n+1 group being the CH2CF2 group) can be produced by reaction of a terminally iodized polyfluoroalkane, represented by the following general formula: CnF2n+1(CH2CF2)s+p(CF2CF2)tI with tetrafluoroethylene in the presence of a peroxide initiator.
Abstract:
A biopolyester which is poly(3-hydroxyalkanoate) or poly(3-hydroxyalkanoate) copolymer and has a reduced calcium content. It has improved thermal stability due to the reduced calcium content.
Abstract:
It is an object of the invention to provide a technique that contributes to increased operability in changing the rotational speed of a spindle in a power tool b which the rotational speed of the spindle can be changed in three levels by utilizing a planetary gear mechanism. A representative power tool is characterized in that the third gear position in which the spindle is rotated at the third speed is located in an intermediate position in the sliding direction of the speed changing part The first speed change position in which the spindle is rotated at the first speed is located on one side of the third speed change position, and the second speed change position in which the spindle is rotated at the second speed is located on the other side of the third speed change position. Therefore, during processing operation by using the power tool, shifting operation between the first and third speeds which is frequently performed can be done without the need to go through the second speed area each time. Further, shifting operation between the second and third speeds which is also frequently performed can be done without the need to go through the first speed area. Therefore, shifting operation for speed change can be facilitated, so that ease of use can be improved.
Abstract:
An object is to provide a liquid level sensor device for liquefied gas enabling measurement on a liquid level of liquefied gas having a boiling point in the vicinity of 21 K, e.g. liquid hydrogen, accurately and with good reproducibility and enabling simple production with good reproducibility. The present invention is a liquid level sensor device for liquefied gas including compound containing magnesium and boron arranged in succession in the longitudinal direction over the entire or a part of surface of a linear conductor made of metal and a portion of the compound thereof dipped in liquid is in a superconductive state at liquid level measurement.
Abstract:
A magnetic head actuator provided with a finely movable tracking device having a piezoelectric element is provided for easy wiring to the piezoelectric element and reducing problems such as wire breakage and continuity defects. In the magnetic head actuator, a portion of an FPC board resin base is removed to expose a portion of the feeding line that extends onto a voltage impressing electrode. An electrical and mechanical connection is made between the electrode and the exposed portion of the feeding line by ultrasonic bonding, Au ball bonding, or stud bumping.
Abstract:
A rotary sensor having a rotator to which rotation from outside is transmitted, a housing on which the rotator is rotatably supported, and an angle sensing member for detecting the angle of rotation to the rotator. At least two, first and second torsion coil springs which constantly turn the rotator in one direction towards the housing are disposed between the rotator and the housing.
Abstract:
A new boron-carbon system superconductive substance has a nominal composition expressed R.sub.3 M.sub.4-x B.sub.4-y C.sub.3-z (where R is at least one element selected from the group consisting of Y, Sc and lanthanide series elements, M is at least one metal element categorized in VIII group of periodic table, and 0.ltoreq.x.ltoreq.1, 0.ltoreq.y.ltoreq.1, 0.ltoreq.z