摘要:
Derivatized agarose is produced by introducing into the disaccharide unit of the agarose polymer chain, at least one substituent having a molecular weight range greater than 100 to about 1,000,000. The derivatized agarose is useful as a sieving gel in electrophoresis and diffusive interactions.
摘要:
Anhydrous cyanuric acid containing amounts of occluded solvent is recrystallized to a purified cyanuric acid dihydrate by slurrying the contaminated anhydrous cyanuric acid in an aqueous medium.
摘要:
On produit des fibrilles à base de polyoléfines par - détente brusque d'un mélange liquide de polyoléfine fondue et de solvant se trouvant à température et pression élevées. Le mélange contient le solvant, une polyoléfine à poids moléculaire normal, une polyoléfine à bas poids moléculaire greffée au moyen d'un monomère polaire. Les fibrilles obtenues présentent une haute teneur superficielle en polyoléfine greffée.
摘要:
The invention provides a process to manufacture hydrogen peroxide by cyclically reducing, oxidizing, and extracting a working compound dissolved in an inert solvent, with solvent and/or energy from the effluent from the oxidation step being recovered thereby increasing the economically feasible temperature and pressure ranges of the oxidation step.
摘要:
L'invention a pour objet un dispositif de réglage de la position du lecteur d'un capteur de la position angulaire d'un arbre tournant dans un corps fixe, dispositif comportant une platine de réglage, sur laquelle est fixé le lecteur qui comporte plusieurs éléments détecteurs, et un disque mobile portant le code, caractérisé en ce qu'il comporte des moyens de déplacement radial de la platine (15) par rapport au corps fixe du capteur constitués par des vis de centrage (18) agissant, de manière antagoniste, dans un plan sensiblement perpendiculaire à l'ane (XX) de rotation du disque (4).
摘要:
A process for producing polypropylene resin composition, which comprises heating at 170 to 280°C a composition containing specific amounts of a crystalline ethylene/propylene block copolymer of a specific formulation, an ethylene/ propylene copolymer rubber of a specific formulation and a specific viscosity, an inorganic filler of a specific particle size, and an organic peroxide. The obtained polypropylene resin composition is excellent in low-temperature impact strength and mold flowability, has good coatability and high rigidity, and is inexpensive, thus being suited for use as large-sized moldings such as bumpers, fenders, side molds, etc. of automobiles.
摘要:
An X-ray receptor for producing electrical signals representative of an X-ray image. An array of semiconductor elements is mounted on at least one support, each element being formed of semiconductor material which is (1) an element of Group 4A of the Periodic Table of Elements or a compound of such an element, or which is (2) at least one element of Group 3A of the Periodic Table of Elements together with at least one element of Group 5A of the Periodic Table of Elements, and having at least one PN junction therein. The array is positioned to receive impinging X-rays and to produce electrical signals in response thereto. Electrical conducting leads are supported on the support, and the electrical signals which are produced by respective one of the semiconductor elements are coupled to these electrical conducting leads. Output terminals also are supported on the support to provide output image signals; and circuitry including multiplexing circuits additionally is supported on the support for processing and multiplexing the electrical signal from the electrical conducting leads to the output terminals. Also disclosed is a method by which the X-ray receptor is made.
摘要:
L'équipement de contrôle et de relèvement de la vitesse comprend un détecteur auxiliaire (7) disposé à un niveau suffisamment éievé ― par rapport au plan (P)de la chaussée - pour qu'il ne soit pas intercepté par les véhicules (A) de petites dimensions (voitures automobiles et similaires), mais pour qu'il soit, en revanche, intercepté par les véhicules(M) - généralement plus lourds - ayant une hauteur supérieure à celle des voitures automobiles et similaires; ledit détecteur auxiliaire est positionné à l'intérieur de la base définie par deux détecteurs (1,3) constituant la base de mesure de la vitesse.
摘要:
A method for measuring acid or alkali concentration by measuring the moisture content and electric conductivity of a sample and deriving the acid or alkali concentration of the sample from a predetermined relationship between electric conductivity corresponding to the moisture content and acid or alkali concentration.
摘要:
An energy producing system is provided which produces energy for use, for example, in an electric vehicle or in a home power plant. The system includes an electrical energizer (60) including a double wound rotor and a double wound stator, for producing electrical energy which is stored in the system, e.g., in an battery (66) storage arrangement, which provides initial energization of the system. The stored energy is supplied to an electrical motor (68) which drives the energizer (60) to thereby create additional energy. The energizer (60) is able to supply the needs of the system as well as to power a load.