| RWTH AACHEN Patent applications |
| Patent application number | Title | Published |
|---|
| 20110241667 | MAGNETIC RESONANCE METHOD USING A PHASE-MODULATED PULSE TRAIN WITH A CONSTANT SMALL FLIP ANGLE - A method for performing magnetic resonance measurements on a sample includes applying a first predetermined number of pulse trains for excitation, each pulse train having a constant amplitude and including a second predetermined number of pulses spaced by a predetermined time interval. The pulse trains are modulated by a bent function. After each pulse, data is sampled. Preferably a square number of pulses is generated being constant in power, and the Walsh transform of the sequence of their phases is constant in power, so that the power of the excitation in time and frequency domain is constant. The method can reduce power requirements and may permit undercutting specific absorption rate (SAR) limits due to the small excitation power necessary to create time signals with reasonable signal to noise ratio. | 10-06-2011 |
| 20110131047 | Steganography in Digital Signal Encoders - In a method for embedding steganographic information into the signal information of a signal encoder, a solution is to be created, which enables steganographic information being embedded into the signal information of a signal encoder such that a reduction of the voice quality is largely avoided. This is achieved by means of providing data information, particularly voice information, selecting steganographic information from a quantity of steganographic information, generating a code word from a code book provided by means of the signal encoder on the basis of the code elements forming the code book such that with the use of the code word generated within the scope of a transmission standard associated with the code book the data information is encoded into signal information containing the code word and/or making reference to the code word; and by the code word generated having an additional feature that can be calculated on the basis of the code elements forming the code word, wherein the additional feature represents the steganographic information. | 06-02-2011 |
| 20100090698 | NUCLEAR MAGNETIC RESONANCE METHOD FOR DETECTING HYDROGEN PEROXIDE AND APPARATUS FOR PERFORMING SAID METHOD - A nuclear magnetic resonance (NMR) method for detecting hydrogen peroxide includes providing a liquid sample in a static magnetic field; stimulating a spin signal in the sample by exciting the sample with a first electromagnetic pulse having a frequency corresponding to the hydrogen NMR frequency in the static magnetic field; waiting for a first time period; refocusing the spin signal in the sample for a first number of times by a series of second electromagnetic pulses having a frequency corresponding to the hydrogen NMR frequency in the static magnetic field, said second electromagnetic pulses being separated by a first echo time, while sampling a first train of spin signals in between the second electromagnetic pulses; and refocusing the spin signal in the sample for a second number of times by a series of third electromagnetic pulses having a frequency corresponding to the hydrogen frequency in the static magnetic field, said third electromagnetic pulses being separated by a second echo time while sampling a second train of spin signals in between the third electromagnetic pulses, wherein the second echo time is different from the first echo time. A first spin-spin relaxation time is derived from the first train of spin signals and a second spin-spin relaxation time is derived from the second train of spin signals, and the presence of hydrogen peroxide is signaled if the quotient of the first spin-spin relaxation time to the second spin-spin relaxation time is different from one. | 04-15-2010 |
| 20100013474 | METHOD AND APPARATUS FOR PROVIDING A SENSITIVE VOLUME FOR SINGLE-SIDED NMR - An apparatus for providing a sensitive volume for single-sided NMR includes: (i) at least one first permanent magnet for providing a first magnetic field at the sensitive volume; and (ii) at least one of the following means for superimposing at least one second magnetic field for homogenizing the first magnetic field in the sensitive volume: (A) at least one shim magnet, (B) at least one pair of shim magnets, and (C) at least one electrical conductor being connectable to an electric current source. The at least one second magnetic field is adjusted such that the magnetic field homogeneity in the sensitive volume is corresponding to a line width of hydrogen (1H) of less than 10 ppm. | 01-21-2010 |
| 20100013473 | MAGNET ARRANGEMENT AND METHOD FOR PROVIDING A MAGNETIC FIELD IN A SENSITIVE VOLUME - A magnet arrangement includes (a) a first and a second head ring magnet each having a substantially circular geometry with respect to a centre axis and (b) a central ring magnet having a substantially circular geometry with respect to a centre axis. The central ring magnet is disposed between the first and second head ring magnet in direction of the centre axis. At least one of the magnets includes a first number of first magnets having at least one trapezoidal cross section and a second number of second magnets having at least one rectangular cross section. The second magnets are disposed in between the first magnets in circumferential direction. With this geometrical arrangement, magnets having a trapezoidal cross section include a guidance for a magnet having a rectangular cross section allowing the movements in radial direction of these last magnets. | 01-21-2010 |
| 20090170183 | Microtiter Plate and Use Thereof - The invention relates to a microtiter plate and use thereof for conducting fermentation under fed-batch conditions. In order to produce a microtiter plate which permits screening under fed-batch conditions, the invention proposes that the cavities ( | 07-02-2009 |
| 20090104655 | Fermentation Method and Apparatus for its Implementation - In order to develop and optimize metering strategies for fed-batch fermentations in two or more reaction vessels, release systems containing nutrients are attached to the inner surfaces of the reaction vessels in areas that will come into contact with culture liquid placed in the vessels. | 04-23-2009 |
| 20090018101 | S-ADENOSYL-L-METHIONINE ANALOGS WITH EXTENDED ACTIVATED GROUPS FOR TRANSFER BY METHYLTRANSFERASES - S-Adenosyl- | 01-15-2009 |
| 20080287652 | Antagonists Against Interaction of Pf4 and Rantes - The invention relates to polypeptides of amino acid sequence SEQ ID NO: 1 according to formula (1), the use thereof for producing a medicament, and medicaments for the treatment of diseases related to monocyte recruitment. | 11-20-2008 |
