Synthesis of complex Weyl–Heisenberg signal frames with good frequency-time localization

2019 ◽  
Vol 2 (1) ◽  
pp. 86-99
Author(s):  
V. P. Volchkov ◽  
Keyword(s):  
Good Frequency

Axial organization of the regenerating limb: asymmetrical behaviour following skin transplantation

Development ◽  
1982 ◽  
Vol 70 (1) ◽  
pp. 197-213
Author(s):  
M. Maden ◽  
K. Mustafa
Keyword(s):  
Pattern Formation ◽  
Lower Limb ◽  
High Frequency ◽  
Skin Grafting ◽  
Good Frequency ◽  
Skin Transplantation ◽  
Serial Sectioning ◽  
Whole Mount ◽  
Ventral Skin ◽  
Anterior Posterior

An extensive series of skin grafting operations has been performed to investigate axial organization in the regenerating axolotl limb. Semicircular cuffs of skin from either anterior, posterior, dorsal or ventral surfaces were exchanged between right and left limbs thereby creating limbs with double anterior, double posterior, double dorsal or double ventral skin, all with normal internal tissues. Both fore and hindlimbs were used at both upper and lower limb levels. Following amputation through the grafted region the resulting regenerates were analysed both by whole-mount cartilage staining to observe the pattern of digits and by serial sectioning to observe the pattern of muscles. There were clear asymmetries in ability to produce duplications - posterior to anterior grafts resulted in a consistently high frequency of digital duplications, whereas anterior to posterior grafts produced very few. Similarly, dorsal to ventral grafts resulted in a good frequency of muscle duplications, whereas ventral to dorsal grafts did not. Such asymmetrical behaviour is not predicted by most models involving local cell:cell interactions and the significance of the results for theories of pattern formation is discussed.

A technique for measuring frequency response of pressure, volume, and flow transducers

1979 ◽  
Vol 47 (2) ◽  
pp. 462-467 ◽  
Author(s):  
A. C. Jackson ◽  
A. Vinegar
Keyword(s):  
Frequency Response ◽  
Pressure Transducer ◽  
Test System ◽  
Good Frequency ◽  
Pressure Transducers ◽  
Response Characteristics ◽  
Measuring Frequency

A device and methodology is presented for testing the frequency response of pressure, volume, or flow transducers. Also reported are responses of selected transducers of all three types over the range of 2--120 Hz. Several pressure transducers tested had good frequency response when connected to the test system with a minimum of interconnecting fittings; others did not. Use of additional connectors degraded the response as did the addition of air-filled catheters. The frequency response of the pneumotachometers tested were influenced largely by the response characteristics of the associated pressure transducer and interconnecting fittings. These results emphasize the need to test the response characteristics of any transducer with specific connectors and fittings that are to be used to make the actual measurements of pressure, volume, or flow.

scholarly journals Single-Resistance-Controlled Sinusoidal Oscillator Using Single VD-DIBA

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
K. L. Pushkar ◽  
D. R. Bhaskar ◽  
Dinesh Prasad
Keyword(s):  
Frequency Stability ◽  
Good Frequency ◽  
Independent Control ◽  
Differential Input ◽  
Sinusoidal Oscillator ◽  
Condition Of Oscillation

This paper presents a new single-resistance-controlled sinusoidal oscillator (SRCO). The proposed oscillator employs only one voltage differencing differential input buffered amplifier (VD-DIBA), two resistors, and two grounded capacitors. The proposed configuration offers the following advantageous features: (i) independent control of condition of oscillation and frequency of oscillation, (ii) low active and passive sensitivities, and (iii) a very good frequency stability. The validity of the proposed SRCO has been established by SPICE simulations using 0.35 μm MIETEC technology.

CW, single-mode, tunable GaAs laser system with good frequency stability

1975 ◽  
Vol 6 (3) ◽  
pp. 373-379 ◽  
Author(s):  
J. L. Picqué ◽  
S. Roizen ◽  
H. H. Stroke ◽  
O. Testard
Keyword(s):  
Laser System ◽  
Single Mode ◽  
Frequency Stability ◽  
Good Frequency ◽  
Gaas Laser
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