Abstract: Disclosed herein is a method of automated noninvasive determining the sex of an embryo of a bird's egg (14) as well as a corresponding apparatus.

Abstract: Shown herein is a method of automated noninvasive determining the fertility of a bird's egg (14), comprising the following steps: conveying a plurality of bird eggs (14) sequentially or in parallel into an NMR apparatus (18), subjecting the bird eggs (14) to an NMR measurement, such as to generate a 3-D NMR image of at least a part of each of said eggs (14), said 3-D NMR image having a spatial resolution in at least one dimension of 1.0 mm or less, preferably of 0.

Abstract: Shown herein is a method of automated noninvasive determining the fertility of a bird's egg (14), comprising the following steps: conveying a plurality of bird eggs (14) sequentially or in parallel into an NMR apparatus (18), subjecting the bird eggs (14) to an NMR measurement, such as to generate a 3-D NMR image of at least a part of each of said eggs (14), said 3-D NMR image having a spatial resolution in at least one dimension of 1.0 mm or less, preferably of 0.

Abstract: Disclosed herein is a method of automated noninvasive determining the sex of an embryo of a bird's egg (14) as well as a corresponding apparatus.

Abstract: A heating control system and method for switching on a heating load, wherein the heating load is controllable via forward-phase control, and wherein, at a particular instant in time, the forward-phase control has a corresponding phase control angle, where the heating load is switched on via a specifiable initial phase control angle and an ascertained effective current and a definable switch-on current curve are taken into account in order to determine the subsequent phase control angles such that an efficient cold start with any heating loads can be performed.

Abstract: An electric heater (4) of a synthetic-material molding system (2) defines a current path (6) that includes a first measuring pickup (20), a second measuring pickup (22), a switch (16) and a third measuring pickup (24), all connected in series, wherein a heating element (14) is connected between the first measuring pickup (20) and the second measuring pickup (22). The electric heater (4) also has a diagnostic path (28) that includes a first diagnostic pickup (30), a first voltage measuring device (52), a second diagnostic pickup (32), a second voltage measuring device (54) and a third diagnostic pickup (34), all connected in series.

Abstract: An electric heater (4) of a synthetic-material molding system (2) defines a current path (6) that includes a first measuring pickup (20), a second measuring pickup (22), a switch (16) and a third measuring pickup (24), all connected in series, wherein a heating element (14) is connected between the first measuring pickup (20) and the second measuring pickup (22). The electric heater (4) also has a diagnostic path (28) that includes a first diagnostic pickup (30), a first voltage measuring device (52), a second diagnostic pickup (32), a second voltage measuring device (54) and a third diagnostic pickup (34), all connected in series.

Abstract: In order to acquire data for an image representation which shows the spatial distribution of the magnetic resonance behavior of an object within a selected localized region, the relevant localized region is arranged in a stationary magnetic field and is subjected to a sequence of high frequency pulses and pulses of magnetic field gradients in different spatial directions, such that a succession of magnetic resonance signals appears. These signals are read out by scanning under the influence of a read gradient and are used as sets of data for the filling of the K-space. In accordance with the invention, at least two different sequences of high frequency pulses and magnetic field gradient pulses are used, which differ in at least one of the features of the signal creation responsible for different aspects of the image quality. These sequences are executed one after another in time, with the magnetic resonance signals read out for the different sequences being collated in different bands of the K-space.

Abstract: A method and an apparatus for a locally resolved investigation of a speci, wherein the specimen is exposed to a constant magnetic field and a variable combination of three gradient magnetic fields directed substantially perpendicularly to each other and to a sequence of high-frequency (RF) pulses which contains three successive pulses with flip angles not equal to .vertline.m Pi.vertline., and signals corresponding to a magnetic resonance of spin moments, in particular nuclear spin moments in said specimen are detected. The interval (tau) between the first and the second pulse is greater than T.sub.2eff and smaller than 5T.sub.2, and that the interval (T-tau) between the second and the third pulse is greater than T.sub.2eff and smaller than 5T.sub.1, whereinm is an integer,T.sub.1 is the spin-lattice relaxation time,T.sub.2 is the spin-spin relaxation time andT.sub.2eff is the effective spin-spin relaxation time of the spins to be determined in the specimen.

Abstract: A circuit arrangement is described for preventing a reaction of a coil on an external high-frequency field of predetermined frequency containing the coil due to a current induced by the field in the coil for a multiple-coil probe of a nuclear magnetic resonance apparatus wherein the coil is coupled via a high-frequency line of predetermined characteristic impedance to a switching element and a circuit unit cooperating with the coil. The electrical length of the high-frequency line between the coil and the switching element is so dimensioned that any undesired reaction of an inactive coil on the other coil(s) is eliminated.

Abstract: A fast low angle shot ("FLASH") NMR method is described, which uses radio frequency excitation pulses having a flip angle substantially less than 90 degrees, and subsequent reading gradient reversal for producing a gradient echo signal. The small flip angle pulses create an equilibrium state between longitudinal and transverse magnetization, which allows to apply the radio frequency pulses repeatedly with high repetition rate to produce gradient echo signals of essentially equal strength, without any intervening delay for magnetization restoration or recovery.