Infinitely many periodic orbits in non-exact oscillating magnetic fields on surfaces with genus at least two for almost every low energy level

In this paper, we prove the existence of infinitely many closed Reeb orbits for a certain class of contact manifolds. This result can be viewed as a contact analogue of the Hamiltonian Conley conjecture. The manifolds for which the contact Conley conjecture is established are the pre-quantization circle bundles with aspherical base. As an application, we prove that for a surface of genus at least two with a non-vanishing magnetic field, the twisted geodesic flow has infinitely many periodic orbits on every low energy level.

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PHOTOLUMINESCENCE OF IMPURITY-BOUND EXCITONS AND TRIONS IN MAGNETIC FIELDS

International Journal of Modern Physics B ◽

10.1142/s0217979207043191 ◽

2007 ◽

Vol 21 (08n09) ◽

pp. 1558-1562

Author(s):

ARKADIUSZ WÓJS ◽

LESZEK BRYJA ◽

ANNA GŁADYSIEWICZ ◽

JAN MISIEWICZ ◽

MAREK POTEMSKI

Keyword(s):

Magnetic Fields ◽

Low Energy ◽

Numerical Calculations ◽

Two Dimensional ◽

Recombination Spectrum

Recombination spectrum of excitons and positive trions is studied by two-beam magneto-photoluminescence of a two-dimensional hole gas. For acceptor-bound trions a low-energy cyclotron replica is observed, corresponding to a hole shake-up process. The experiment is supplemented by realistic numerical calculations, allowing for identification of individual transitions and connecting the splitting of the shake-up line directly with the hole mass.

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A 0.19-V minimum input low energy level shifter for extremely low-voltage VLSIs

2015 IEEE International Symposium on Circuits and Systems (ISCAS) ◽

10.1109/iscas.2015.7169305 ◽

2015 ◽

Cited By ~ 14

Author(s):

Ryo Matsuzuka ◽

Tetsuya Hirose ◽

Yuzuru Shizuku ◽

Nobutaka Kuroki ◽

Masahiro Numa

Keyword(s):

Energy Level ◽

Low Voltage ◽

Low Energy ◽

Level Shifter

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Energy-level statistics and localization of 2d electrons in random magnetic fields

Physica B Condensed Matter ◽

10.1016/s0921-4526(98)00316-0 ◽

1998 ◽

Vol 249-251 ◽

pp. 792-795 ◽

Cited By ~ 17

Author(s):

M. Batsch ◽

L. Schweitzer ◽

B. Kramer

Keyword(s):

Magnetic Fields ◽

Energy Level ◽

Level Statistics

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Characterization of Families of Low-Energy Transfers to Cislunar Four-Body Quasi-Periodic Orbits

10.2514/6.2022-1889 ◽

2022 ◽

Author(s):

Brian McCarthy ◽

Kathleen C. Howell

Keyword(s):

Periodic Orbits ◽

Low Energy ◽

Energy Transfers ◽

Low Energy Transfers

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Energy Level and Chemical Class of Disperse Dyes—Plausible Characteristics of Level Dyeing Performance

AATCC Journal of Research ◽

10.14504/ajr.8.4.3 ◽

2021 ◽

Vol 8 (4) ◽

pp. 15-19

Author(s):

Salima Sultana Shimo ◽

Md. Zulhash Uddin

Keyword(s):

Energy Level ◽

Low Energy ◽

Disperse Dyes ◽

Disperse Dye ◽

Migration Process ◽

Migration Index ◽

Dyeing Performance ◽

Fabric Surface ◽

Chemical Class

The level dyeing index (LDI) is a measure of dye performance influenced by the dye migration process, ensuring the maximum uniformity of dye redistribution onto the fabric surface. The current study evaluates the level dyeing performance on polyester according to the energy level (low and high) and chemical classes (azo and anthraquinone based) of the three disperse dyes studied. The best levelness was obtained using C.I. Disperse Red 73 (an azo-based, low-energy level disperse dye), which exhibited the highest migration index (MI%) value. LDI results were obtained from the ratio of the exhaustion at the critical dyeing temperature (ECDT% and the final exhaustion Ef%), and the migration index (MI%). Each dye's LDI can be used to determine the compatibility of disperse dyes for combination dyeing.

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Control of Dietary Energy Level and dl-alpha-Tocopheryl Acetate Treatment Can Improve the Lipid Composition of Lamb Meat

International Journal for Vitamin and Nutrition Research ◽

10.1024/0300-9831.73.3.171 ◽

2003 ◽

Vol 73 (3) ◽

pp. 171-179 ◽

Cited By ~ 1

Author(s):

Salvatori ◽

Maiorano ◽

Pantaleo ◽

Brienza ◽

Filetti ◽

...

Keyword(s):

Fatty Acids ◽

Linoleic Acid ◽

Vitamin E ◽

Energy Level ◽

Shelf Life ◽

Low Energy ◽

Tocopheryl Acetate ◽

Dietary Energy ◽

Lamb Meat ◽

Total Fat

A diet rich in saturated fatty acids promotes plasmatic cholesterol levels and coronary disease in humans, whereas a high intake of polyunsaturated fatty acids reduces atheromatous plaque thickness. This study aimed at establishing a dietary energy level, which combined with intramuscular vitamin E treatment, would improve the nutritional lipid quality and shelf-life of lamb meat. Twenty male lambs were evaluated in a 2 × 2 factorial experiment: they were fed a low- and normal-energy diet (0.85 and 1.00 UFV NE/kg DM, respectively), and were injected intramuscularly with 0 and 150 IU dl-alpha-tocopheryl acetate/weekly for eight weeks. Thereafter, total fat, cholesterol, fatty acid profile, and lipostability were measured in meat samples. Meat total fat was significantly reduced by low energy intake diet and vitamin E administration. Cholesterol was significantly lower in meat from lambs fed the 0.85 UFV NE/kg DM diet. Vitamin E treatment increased linoleic acid percent values and decreased myristic acid levels. Moreover, linoleic acid percentage was inversely correlated with muscle total fat concentration. Meat sensitivity to lipoperoxidation was inversely correlated with muscle vitamin E concentration. This study demonstrates that nutritional characteristics and shelf-life of meat benefit from a low-energy diet and intramuscular vitamin E treatment.

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Symmetric Periodic Orbits in the Anisotropic Kepler Problem

International Astronomical Union Colloquium ◽

10.1017/s0252921100097153 ◽

1983 ◽

Vol 74 ◽

pp. 263-270

Author(s):

Josefina Casasaya ◽

Jaume Llibre

Keyword(s):

Energy Level ◽

Periodic Orbits ◽

Kepler Problem ◽

Negative Energy ◽

Velocity Curve ◽

Zero Velocity ◽

Anisotropic Kepler Problem ◽

Symmetric Periodic Orbits ◽

Group Of Symmetries

AbstractThe anisotropic Kepler problem has a group of symmetries with three generators; they are symmetries respect to zero velocity curve and the two axes of motion’s plane. For a fixed negative energy level it has four homothetic orbits. We describe the symmetric periodic orbits near these homothetic orbits. Full details and proofs will appear elsewhere (Casasayas-Llibre).

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