摘要:
A computer aided design system and a computer aided design program which can greatly increase the utility of a computer aided design model, and can improve the efficiency of design and production processes, by adopting a curved surface theory which ensures the continuity of a free-form line or surface. A computer executes: a point sequence information extraction process for extracting a plurality of point sequences on a curved surface; a dividing process for generating a curved surface from the point sequences and dividing the curved surface into a predetermined number of mesh points; a first fundamental form computing process for computing coefficients of the first fundamental form; a second fundamental form computing process for computing coefficients of the second fundamental form; and a storage process for storing the point sequence information, the coefficients of the first fundamental form and the coefficients of the second fundamental form.
摘要:
A plurality of representative points are selected from a group of points obtained as results of shape measurement of an object, respective principal curvatures are calculated at the representative points on the basis of positional relationships between the representative point and a plurality of points existing around the representative point, a line of curvature is created on the basis of the principal curvatures of the representative points and a curved surface is generated using this line of curvature.
摘要:
The present invention intends to find out a gene participating in addition of mannose phosphate to a sugar chain of a glycoprotein originating in a yeast belonging to the genus Pichia and provide a means of controlling the same. The present invention also intends to provide a process for producing a protein with reduction of an acidic sugar chain by using the thus controlled yeast strain belonging to the genus Pichia. Namely, the present invention includes a protein participating in the addition of mannose phosphate to a sugar chain of a glycoprotein; a gene coding this protein; a mutant of this gene; a vector carrying the mutant gene; a yeast strain belonging to the genus Pichia having been transformed by this vector; a process for producing a protein with reduction of an acidic sugar chain by using the transformed yeast strain; and a glycoprotein thus produced.
摘要:
There is provided a computer aided design system and a computer aided design program which can greatly increase the utility value of a computer aided design model, and can improve the efficiency of design and production processes, by adopting a curved surface theory which ensures the continuity of a free-form line/free-form surface. A computer executes: a point sequence information extraction process for extracting a plurality of point sequences on a curved surface; a dividing process for generating a curved surface from the point sequences using another computer graphics program, and dividing the curved surface into a predetermined number of meshes; a first fundamental form computing process for computing coefficients of the first fundamental form defined by a tangent vector which forms a tangent plane of the mesh; a second fundamental form computing process for computing coefficients of the second fundamental form defined by the tangent vector and a normal vector of the mesh; and a storage process for storing the point sequence information, the coefficients of the first fundamental form and the coefficients of the second fundamental form.
摘要:
A plasmid for a yeast host, the plasmid comprising in sequence: (1) a yeast derived promoter, (2) an albumin-encoding region placed under control of the yeast-derived promoter, (3) a transcription terminator and (4) a sequence homologous to a part of the yeast host chromosomal sequence such that the plasmid is capable of being integrated into the yeast host cell chromosome and wherein the plasmid is incapable of autonomous replication in yeast cells; a yeast host transformed with the above plasmid; a method of producing a yeast transformant which comprises transforming a yeast host by integrating at least two different plasmids each having a sequence homologous to a part of the host yeast chromosomal sequence one at a time into the chromosome of the yeast host cell; and a method of producing albumin which comprises cultivating the above transformant and recovering the thus-produced albumin.
摘要:
A full-wave rectifier having a limited number of circuit elements comprises an amplifier, such as an operational amplifier, having an inverting input held at a reference potential, a non-inverting input receiving an input signal through a first resistor and an output, a transistor having its base connected to the output of the amplifier and its collector connected to the non-inverting input of the amplifier through a second resistor and optionally an output circuit for producing an output signal from the connection point between the collector of the transistor and the second resistor.
摘要:
A demodulator for an angle modulated signal consists of circuitry particularly adaptable to integrated circuit construction. The various circuit functional groups are adapted to be connected in parallel, rather than serially, across the power source, thereby enabling good performance in systems having low voltage power sources. The angle modulated signal is converted into first and second signals of opposite phase. Also, the angle modulated signal is phase shifted an amount dependent upon the frequency deviation from a center frequency, the first and phase shifted signals are applied to a first OR circuit which provides the largest input signal as its output. The second and phase shifted signals are applied to a second OR circuit which provides the largest input signal as its output. The two OR circuit outputs are low-pass filtered and subtracted to provide the demodulated output.
摘要:
Provided is a wave-power generator capable of adjusting a natural period (natural frequency) in response to a changing wave period. The wave-power generator includes a weight that is installed in a floating body via a spring and that linearly reciprocates in response to a fluctuation of a water surface and a generator that generates power by being driven based on the linear reciprocating motion of the weight. An additional-mass body for adding a mass to the mass of the weight is further included.
摘要:
A power generating unit generates electric power using natural energy, plural secondary battery packs are charged with the electric power generated by the power generating unit, and the secondary battery pack as a power source to be used for an operation control of a control unit controlling the operation of a charging system is selected on the basis of a charging rate of the corresponding secondary battery pack.