NEW METHOD FOR TREATING RELAXATION PROCESSES: DAMPED HARMONIC OSCILLATOR AND THE JAYNES-CUMMINGS MODEL WITH CAVITY LOSSES

1996 ◽  
Vol 10 (20) ◽  
pp. 981-987
Author(s):  
J. SEKE
Keyword(s):  
Harmonic Oscillator ◽  
Equations Of Motion ◽  
Operator Method ◽  
New Method ◽  
New Technique ◽  
Relaxation Processes ◽  
Total System ◽  
Damped Harmonic Oscillator ◽  
A New Technique ◽  
Reduced Density

In the present paper a new technique for treating relaxation processes, based on the author’s self-consistent projection-operator method, is developed. This new technique, which yields (instead of a master equation for a reduced density operator) equations of motion for probability amplitudes for a reduced set of states of the total system, opens a new way for treating relaxation processes. The applicability of the new method is demonstrated in the case of a damped harmonic oscillator and in that of the Jaynes-Cummings model with cavity losses.

On the constant of motion of dissipative systems

2002 ◽  
Vol 80 (1) ◽  
pp. 1-5 ◽  
Author(s):  
A Patiño ◽  
H Rago
Keyword(s):  
Harmonic Oscillator ◽  
Equations Of Motion ◽  
Viscous Medium ◽  
Dissipative Systems ◽  
Damped Harmonic Oscillator ◽  
Constant Of Motion

We apply results on symmetries of equations of motion and equivalent Lagrangians to obtain a constant of motion for a particle travelling through a viscous medium and for the damped harmonic oscillator. PACS No.: 45.20Jj

A new method for preparation of isolated single adult myocytes

1984 ◽  
Vol 247 (6) ◽  
pp. H1018-H1026 ◽  
Author(s):  
G. Bkaily ◽  
N. Sperelakis ◽  
J. Doane
Keyword(s):  
Dispersion Medium ◽  
Cardiac Cells ◽  
New Method ◽  
New Technique ◽  
Resting Potential ◽  
High Yield ◽  
Promising Technique ◽  
Mechanical Method ◽  
Adult Rat ◽  
A New Technique

A new technique for isolation of single cardiac cells from adult rat ventricles is described. The mechanical method is modified from the method of Jacobson (Cell Struct. Funct. 2: 1-9, 1977) by employing an enzyme-free dispersion medium containing Sr2+ or Ba2+ to replace Ca2+. This method produces a high yield of isolated rod-shaped adult mammalian cardiomyocytes that do not contract spontaneously, have a normal resting potential, and are Ca2+ tolerant. This method represents a promising technique for isolation of single, viable, intact, adult myocytes.

A new technique for radiolabelling of humic substances

2004 ◽  
Vol 92 (4-6) ◽  
Author(s):  
K. Franke ◽  
J. T. Patt ◽  
M. Patt ◽  
H. Kupsch ◽  
J. Steinbach
Keyword(s):  
Humic Substances ◽  
Aqueous Phase ◽  
New Method ◽  
New Technique ◽  
Positron Emitter ◽  
A New Technique

AbstractA new method of radiolabelling of humic substances (HS) in the aqueous phase has been developed. Radiolabelling with the short-lived positron-emitter

A new technique of brachytherapy for malignant gliomas with caesium-137: A new method utilizing a remote afterloading system

1990 ◽  
Vol 2 (6) ◽  
pp. 333-337 ◽  
Author(s):  
R.D. Ashpole ◽  
H. Snyman ◽  
J.A. Bullimore ◽  
H.J. Appleby ◽  
B.H. Cummins ◽  
...  
Keyword(s):  
Malignant Gliomas ◽  
New Method ◽  
New Technique ◽  
A New Technique

scholarly journals SPINAL CORD NEUROSTIMULATION – NEW METHOD FOR THE TREATMENT OF PAIN AND SPASTIC SYNDROMES

2011 ◽  
Vol 2 (3) ◽  
pp. 85-90
Author(s):  
A V Safin ◽  
O P Kuzovlev
Keyword(s):  
Spinal Cord ◽  
Surgical Treatment ◽  
New Method ◽  
New Technique ◽  
A New Technique

The article is devoted to a new technique in neurosurgery – spinal cord neurostimulation. It has also focused on the patophysiology of pain and spastic syndromes. Surgical treatment of pain, spasti-city and stages of neurostimulation are also considered.

scholarly journals A New Technique to Solve Two-Dimensional Viscous Fluid Flow Among Slowly Expand or Contract Walls

2020 ◽  
Vol 7 (4) ◽  
pp. 631-641
Author(s):  
Abdul-Sattar J. Al-Saif ◽  
Takia Ahmed J. Al-Griffi
Keyword(s):  
Fluid Flow ◽  
Viscous Fluid ◽  
New Method ◽  
New Technique ◽  
Two Dimensional ◽  
Viscous Fluid Flow ◽  
Homotopy Perturbation ◽  
A New Technique ◽  
Expanding Or Contracting Walls ◽  
Method Show

In this research, we have proposed a new technique to solve two-dimensional (2D) viscous fluid flow among slowly expanding or contracting walls. The new technique depends on combining the algorithms of Yang transform and the homotopy perturbation methods. The results, obtained from the first iteration and by using the new method, show the accuracy and efficiency of this method compared to the other methods, used to find the analytical approximate solution for the problem caused by the 2D viscous fluid flow. Moreover, the graphs of the new solutions show the validity, usefulness and necessity of the new method.

scholarly journals A New Technique for Determining Approximate Center of a Polytope

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Syed Inayatullah ◽  
Maria Aman ◽  
Asma Rani ◽  
Hina Zaheer ◽  
Tanveer Ahmed Siddiqi
Keyword(s):  
Linear Programming ◽  
Geometrical Interpretation ◽  
New Method ◽  
New Technique ◽  
Computational Results ◽  
Numerical Examples ◽  
A New Technique

In this article, we have presented a method for finding the approximate center of a linear programming polytope. This method provides a point near the center of a polytope in few simple and easy steps. Geometrical interpretation and some numerical examples have also been presented to demonstrate the proposed approach and comparison of quality of the center obtained by using the new method with existing methods of finding exact and approximate centers. At the end, we also presented computational results on the randomly generated polytopes to compare the quality of the center obtained by using the new method.

Impact: A New Method for Evaluating Advertising

1950 ◽  
Vol 27 (4) ◽  
pp. 378-382
Author(s):  
George Gallup
Keyword(s):  
Scientific Method ◽  
New Method ◽  
New Technique ◽  
A New Technique

Twenty years ago the QUARTERLY published an article by Dr. Gallup on “A Scientific Method for Determining Reader-Interest.” He now describes a new technique which he predicts will change the character of advertising as much in the next 20 years as the readership method has changed it in the last 20.

Sagittal Fractures of the Palate: A New Method of Treatment

1995 ◽  
Vol 3 (2) ◽  
pp. 23-32
Author(s):  
Mark D Wells ◽  
Scott Oishi ◽  
Mustafa Sengezer
Keyword(s):  
Hard Palate ◽  
Fracture Pattern ◽  
New Method ◽  
New Technique ◽  
Intermaxillary Fixation ◽  
Le Fort ◽  
Comminuted Fracture ◽  
Nasal Side ◽  
A New Technique ◽  
Le Fort I

A new technique is described for stabilizing complex vertical fractures of the maxilla. Advantageous use of the comminuted fracture pattern of the maxillary buttresses allows the maxilla to be divided into two parts at the Le Fort I level. with intermaxillary fixation applied, stabilization is achieved by applying miniplate fixation to the nasal side of the hard palate. The maxilla is reduced to the previously stabilized anterior midfacial buttresses with plates and screws. Comminuted segments of defects in the anterior buttresses are replaced with contoured calvarial grafts. This method has the advantage of maintaining transverse palatal width in a rigid fashion without the need for further osteotomies. It has satisfactorily restored preinjury occlusal relationships in six patients, without the need for dental splints. In no instance has hardware extrusion occurred after fixation.

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