A method for determining the time-of-flight of a device under test, wherein a return signal returning from the device under test in response to the probing signal comprising a sequence of pulses according to a first code sequence is detected and a second code sequence from the detected ...
Time-of-flight, the most commonly used angiographic sequence, relies on the inflow of bright, relaxed blood into a region whose magnetization is suppressed by radiofrequency pulses. Good angiographic contrast relies on pulse rates (i. e., repetition times) that are fast enough and pulse amplitude...
A signal processor analyzes the sample signal to indicate the time-of- flight of the electromagnetic pulses in the sequence. The sample signal in equivalent time is passed through an envelope detection circuit, formed of an absolute value circuit followed by a low pass filter, to convert the ...
In the proposed TOF measurement technique, adjacent pulses are distributed to multiple TDCs in the order of arriving sequences in the distribution system. Thus measurement time is not restricted to the dead time or recovery time of a single TDC circuit. In the distribution system, programmable ...
10、Will the Flight 721 arrive on time today?721航班是否会按时到达？三、in time造句1、Just in time to go out of the intermission! We missed half of the show!正好赶上中间的休息时间，我们误了一半！2、more advanced in time or nearer to the end in a sequence.时间上往前或者接近...
BermanAttorney, Agent or firm—Chilton, Alix and Van KirkA method of time-of-fright mass spectrometry adaptedprises the following sequences of events:(a) producing, duringa first time interval,a pulse ofcharged particles,(b) directing said charged particles towards the en-trance ofa mass ...
How does time-of-flight MRA work? For at least the first two decades of MRI, time-of-flight (TOF) MRA was the dominant non-contrast bright-blood method for imaging the human vascular system. Although now supplanted in body MR imaging by other techniques, it still remains one of the ...
Red blood cells (RBCs) transport oxygen to tissues and remove carbon dioxide. Diffuse optical flowmetry (DOF) assesses deep tissue RBC dynamics by measuring coherent fluctuations of multiply scattered near-infrared light intensity. While classical DOF me
There is disclosed a time-of-flight (TOF) mass spectrometer capable of making a spectral measurement quickly and efficiently and making effective use of ionized samples. The instrument has a pulse- generating portion for producing appropriate pulse sequences. An arithmetic unit Fourier-transforms a ...
Using accurate mass electrospray ionization-time-of-flight mass spectrometry with in-source collision-induced dissociation to sequence peptide mixtures Although data-dependent LC–MS–MS with database searching has become au courant for identifying proteins, the technique is constrained by duty-cycle inef...