摘要:
An installation device for a gradient coil module in a magnetic resonance tomography apparatus has a loading cart that moves the gradient coil module away from and to the magnetic resonance tomography apparatus. A bearing girder having a track is fastened to the loading cart. Track rollers can be installed on the gradient coil module such that the gradient coil module can be moved relative to the loading cart by means of the track rollers resting on the track.
摘要:
An installation device for a gradient coil module in a magnetic resonance tomography apparatus has a loading cart that moves the gradient coil module away from and to the magnetic resonance tomography apparatus. A bearing girder having a track is fastened to the loading cart. Track rollers can be installed on the gradient coil module such that the gradient coil module can be moved relative to the loading cart by means of the track rollers resting on the track.
摘要:
A process of preparing cyclic ethers is described. The process involves the reaction of at least one organic compound such as a dioi or a polyol which it has at least one pair of hydroxyl groups separated by 4 or 5 carbon atoms, and which is capable of being converted into an ether linkage, with an organic carbonate in the presence of a base. The base is an alkoxy, a carbonate or a hydroxide base or is a mixture of such bases. At least one of the hydroxyl groups of the organic compound is not a tertiary hydroxyl group.
摘要:
Disclosed is a method for pictorially representing and determining tissue densities of a body region, especially in the mouth/jaw/face region (1), of a patient. According to said method, a set of three-dimensional image data representing the body region as well as calibration data that is provided as three-dimensional image data and represents a calibration phantom (5, 8, 15) having a previously known density are photographed by generating an image while the tissue densities are derived from a comparison of the calibration data with the image data. The image data and the calibration data are photographed in the framework of the same shot and in an upright position of the patient, particularly during sitting or standing. The calibration phantom (5, 8, 15) is held in the immediate vicinity of the body region (1) that is to be photographed during the shot by means of a fixture (4, 10, 14) which is fixed independently of the patient's body and in a defined relation to the imaging device.
摘要:
A compound of general formula (I) with or without the double bond illustrated by the dotted line. In formula (I), X is a CHO, CH2OH, CH2OC(O)R or CH(OR)2 group, and R represents a linear or branched C1-C5 alkyl or alkenyl chain. The synthesis method for the compound, and especially the 6,8-dimethyl-non-7-enal (1) prepared by the hydroformylation of the 5,7-dimethyl-octa-1,6-diene is also disclosed, as well as compositions containing the compounds of formula (I). Due to the odorant properties thereof, the compounds are highly useful in perfumery, especially for cosmetic products and household products.
摘要:
The invention concerns a novel compounds of formula (I), wherein the dotted line bond is present or not, and wherein R1 represents: when the dotted line bond is present —CHCH3OH or —CHCH3 OCOR or —CHCH3XCH2CHOHR′ or —CHCH3OCHR′CH2OH or formula (II) when the dotted line bond is absent —CHCH3OH or —CHCH3OCOR or —COCH3 or formula (II) or —CHCH3XCH2 CHOHR′ or —CH2CH2XCH2CHOHR′ or —CHCH3OCHR′CH2OH or —CHCHCOR′ or —CH2CH2CHR′OH or —CH2CH2CHR′OCOR or CHCHCHOHR′ or —CHCHCHR′OCOR, wherein R represents H, Me, Et, Pr, isoPr, But, isoBut, CH3CH2)4, (CH3)2CHCH2, CH2CH, (CH3)2CCH, and R′ represents H, Me or Et, and X represents O, N or S, and their preparation method. Because of their fragrance, said compounds are highly interesting for the perfume industry, for cosmetic and care products.
摘要:
The invention relates, in particular to a tetrahydropyran(on) compound which is substituted in position beta with respect to a cycle oxygen of formula (I), wherein a substituent R is a linear alkyl radical in C2:C10 including, (CH3)2CH— or C6H5—(CH2)m—, with m=0 or 1, or formula (II), wherein A is —CH2— or —CO—, in the form of an odorant and to a method for the synthesis thereof by reducing oxo-ester. The use of the inventive compound in composition such as perfumery compositions in the ordinary sense of the term i.e. topic, in particular cosmetic compositions and care products.
摘要:
A digital camera has a lens, a camera housing, and a semiconductor sensor. The camera housing is primarily formed of a transparent plastic block that encloses a semiconductor sensor only on its underside and has an adapted lens on its top side. Between the two there is provided an opaque layer with an aperture that improves the image quality. The invention also relates to a method for producing such a digital camera.
摘要:
The invention relates, in particular to a tetrahydropyran(on) compound which is substituted in position beta with respect to a cycle oxygen of formula (I), wherein a substituent R is a linear alkyl radical in C2:C10 including, (CH3)2CH— or C6H5—(CH2)m—, with m=0 or 1, or formula (II), wherein A is —CH2— or —CO—, in the form of an odorant and to a method for the synthesis thereof by reducing oxo-ester. The use of the inventive compound in composition such as perfumery compositions in the ordinary sense of the term i.e. topic, in particular cosmetic compositions and care products.
摘要:
A process of preparing cyclic ethers is described. The process involves the reaction of at least one organic compound such as a dioi or a polyol which it has at least one pair of hydroxyl groups separated by 4 or 5 carbon atoms, and which is capable of being converted into an ether linkage, with an organic carbonate in the presence of a base. The base is an alkoxy, a carbonate or a hydroxide base or is a mixture of such bases. At least one of the hydroxyl groups of the organic compound is not a tertiary hydroxyl group.