scholarly journals Single pulse frequency compounding protocol for superharmonic imaging

2011 ◽  
Author(s):  
Mikhail G. Danilouchkine ◽  
Paul L. M. J. van Neer ◽  
Guillaume M. Matte ◽  
Martin D. Verweij ◽  
Nico de Jong
Keyword(s):  
Single Pulse ◽  
Pulse Frequency

Non-responsiveness of serum gonadotropins and testosterone to pulsatile GnRH in hemochromatosis suggesting a pituitary defect

1993 ◽  
Vol 128 (4) ◽  
pp. 351-354 ◽  
Author(s):  
Lise Duranteau ◽  
Philippe Chanson ◽  
Joelle Blumberg-Tick ◽  
Guy Thomas ◽  
Sylvie Brailly ◽  
...  
Keyword(s):  
Single Pulse ◽  
Serum Testosterone ◽  
Pulse Amplitude ◽  
Pulse Frequency ◽  
Gonadotropin Secretion ◽  
Pulsatile Gnrh ◽  
Serum Lh ◽  
Before And After ◽  
Gnrh Therapy ◽  
Lh Secretion

We investigated the potential pituitary origin of gonadal insufficiency in hemochromatosis. Gonadotropin secretion was studied in seven patients with hemochromatosis and hypogonadism, before and after chronic pulsatile GnRH therapy. Pulsatile LH secretion was studied before (sampling every 10 min for 6 h) and after 15-30 days of chronic pulsatile GnRH therapy (10-12 μg per pulse). Prior to GnRH therapy, all the patients had low serum testosterone, FSH and LH levels. LH secretion was non-pulsatile in four patients, while a single pulse was detected in the remaining three. Chronic pulsatile GnRH administration did not increase serum testosterone levels; similarly, serum LH levels remained low: neither pulse frequency nor pulse amplitude was modified. We conclude that hypogonadism in hemochromatosis is due to pituitary lesions.

Study on the Mechanism of High Speed Small Hole Drilling by EDM

2004 ◽  
Vol 471-472 ◽  
pp. 302-306 ◽  
Author(s):  
S.L. Ye ◽  
J. Su ◽  
Z.X. Jia ◽  
R. Hua
Keyword(s):  
High Speed ◽  
Pulse Discharge ◽  
Single Pulse ◽  
Pulse Frequency ◽  
Small Hole ◽  
Hole Drilling ◽  
Dielectric Fluid ◽  
Pulse Interval ◽  
Molten Material ◽  
Edm Drilling

In this paper, a single-pulse discharge experimental device has been developed to study the mechanism of high speed small hole EDM drilling. It is found that the emulsion used in high speed small hole EDM drilling as dielectric fluid is easier to be broken down than the kerosene which is always used in the traditional EDM. The injection flushing is contributive to the ejection of molten material in the crater produced by discharge, and can greatly improve the evacuating condition. Additionally, the effective quenching ability of emulsion and injection flushing can greatly reduce the necessary pulse interval and increase the effective pulse frequency.

scholarly journals Single pulse frequency compounding protocol for superharmonic imaging

2013 ◽  
Vol 58 (14) ◽  
pp. 4791-4805 ◽  
Author(s):  
M G Danilouchkine ◽  
P L M J van Neer ◽  
M D Verweij ◽  
G M Matte ◽  
W B Vletter ◽  
...  
Keyword(s):  
Single Pulse ◽  
Pulse Frequency

The Dynamics of SAW Streaming and its Application to Fluid Devices

1994 ◽  
Vol 360 ◽  
Author(s):  
Showko Shiokawa ◽  
Yoshikazu Matsui
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Frequency Spectrum ◽  
Liquid Surface ◽  
Water Drop ◽  
Acoustic Streaming ◽  
Nonlinear Behavior ◽  
Single Pulse ◽  
Pulse Frequency ◽  
Bubble Oscillation

AbstractVarious liquid motions such as streaming and droplet formation on the surface of surface acoustic wave (SAW) propagating substrate are called SAW streaming. In this paper, the liquid dynamic motions excited by the SAW fabricated on 128° rot. Y-X LiNb03 at the frequency of 50 MHz with various pulse widths are demonstrated. The SAW streaming system are also tested for use as a micropump. Theoretically, SAW streaming force can be derived based on the acoustic streaming theory. The calculated SAW streaming force is found to be very large and strong enough to expel a droplet from a liquid surface.Nonlinear behavior in a water drop vibration induced by the SAW streaming force is also experimentally investigated as a model of inverse bubble oscillation. We succeed in detecting the transformation of the water drop vibration with a single pulse frequency spectrum to 1/2 and its harmonics.

scholarly journals Bit Streaming Processing Algorithms for Intelligent Hardware Converters

2021 ◽  
Vol 11 (11) ◽  
pp. 4899
Author(s):  
Olga Bureneva ◽  
Mikhail Kupriyanov ◽  
Nikolay Safyannikov
Keyword(s):  
Continuous Process ◽  
Single Pulse ◽  
Pulse Frequency ◽  
Primary Data ◽  
Monitoring Systems ◽  
Computational Process ◽  
Serial Processing ◽  
Pulse Streams ◽  
Processing Algorithms ◽  
Functional Transformations

The need to transfer the primary data conversions close to the sensors, to the endpoints of monitoring systems, as well as in IoT terminal devices makes the development of new approaches to computing and the design of appropriate algorithms relevant. The article shows stream processing algorithms that provide functional transformations of signals presented in bit stream form (single pulse streams, PWM signal streams) and binary codes at the same time. In such algorithms, the computational process is based on discretization, pulse frequency sweep and pulse-width sweep of codes as well as organization of parallel-serial processing. The suggested principles of algorithm organization are based on the fact that the computation is considered not as an event associated with calculation but as a continuous process of a result formation. The transition to algorithmic representations proposed by the authors makes it possible to obtain universal behavioral descriptions, independently of the specific hardware on which their implementation is performed.

Pyrolysis of methane in a single pulse shock tube

1972 ◽  
Vol 22 (3) ◽  
pp. 303-317 ◽  
Author(s):  
D. H. Napier ◽  
N. Subrahmanyam
Keyword(s):  
Shock Tube ◽  
Single Pulse

Efficiency Improvement of Switched Reluctance Motor by Single-Pulse Control with Variable Excitation Period

2015 ◽  
Vol 135 (3) ◽  
pp. 284-290 ◽  
Author(s):  
Yoshihiro Nakazawa ◽  
Kazuhiro Ohyama ◽  
Hiroaki Fujii ◽  
Hitoshi Uehara ◽  
Yasushi Hyakutake
Keyword(s):  
Single Pulse ◽  
Switched Reluctance Motor ◽  
Efficiency Improvement ◽  
Pulse Control ◽  
Switched Reluctance ◽  
Reluctance Motor ◽  
Excitation Period

Demonstration of 6-bit, 0.20-mVpp Quasi-Triangle Voltage Waveform Generator Based on Pulse-Frequency Modulation

2014 ◽  
Vol E97.C (3) ◽  
pp. 194-197 ◽  
Author(s):  
Yoshitaka TAKAHASHI ◽  
Hiroshi SHIMADA ◽  
Masaaki MAEZAWA ◽  
Yoshinao MIZUGAKI
Keyword(s):  
Frequency Modulation ◽  
Pulse Frequency ◽  
Waveform Generator ◽  
Voltage Waveform ◽  
Pulse Frequency Modulation
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