Production of lipid nanostructures through low energy processes

2018 ◽  
Author(s):  
Davi Rocha Bernardes de Oliveira
Keyword(s):  
Low Energy ◽  
Energy Processes

scholarly journals Low Energy Indicators of High Energy Processes

2016 ◽  
Author(s):  
Franco Giovannelli ◽  
Corinne Rossi ◽  
Gennady Bisnovatyi-Kogan ◽  
Ivan Bruni ◽  
Alessandro Fasano ◽  
...  
Keyword(s):  
High Energy ◽  
Low Energy ◽  
Energy Indicators ◽  
Energy Processes

scholarly journals PMMA-Assisted Plasma Patterning of Graphene

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Alfredo D. Bobadilla ◽  
Leonidas E. Ocola ◽  
Anirudha V. Sumant ◽  
Michael Kaminski ◽  
Jorge M. Seminario
Keyword(s):  
Single Molecule ◽  
Oxygen Plasma ◽  
2D Materials ◽  
High Energy ◽  
Low Energy ◽  
Graphene Ribbon ◽  
Microelectronic Fabrication ◽  
Time Required ◽  
Transistor Fabrication ◽  
Energy Processes

Microelectronic fabrication of Si typically involves high-temperature or high-energy processes. For instance, wafer fabrication, transistor fabrication, and silicidation are all above 500°C. Contrary to that tradition, we believe low-energy processes constitute a better alternative to enable the industrial application of single-molecule devices based on 2D materials. The present work addresses the postsynthesis processing of graphene at unconventional low temperature, low energy, and low pressure in the poly methyl-methacrylate- (PMMA-) assisted transfer of graphene to oxide wafer, in the electron-beam lithography with PMMA, and in the plasma patterning of graphene with a PMMA ribbon mask. During the exposure to the oxygen plasma, unprotected areas of graphene are converted to graphene oxide. The exposure time required to produce the ribbon patterns on graphene is 2 minutes. We produce graphene ribbon patterns with ∼50 nm width and integrate them into solid state and liquid gated transistor devices.

QUANTUM SPACE-TIME AND ESTIMATIONS ON THE VALUE OF THE FUNDAMENTAL LENGTH

1986 ◽  
Vol 01 (03) ◽  
pp. 183-189 ◽  
Author(s):  
M. DINEYKHAN ◽  
Kh. NAMSRAI
Keyword(s):  
Hydrogen Atom ◽  
Hyperfine Structure ◽  
Lamb Shift ◽  
Space Time ◽  
Low Energy ◽  
Quantum Mechanical ◽  
Quantum Space ◽  
Fundamental Length ◽  
Space Time Structure ◽  
Energy Processes

Generalizing the idea of quantum space-time to the quantum mechanical case we re-analyze low energy processes and consider the nuclear radii, the Lamb shift and hyperfine structure of the hydrogen atom. Calculations of the contributions to these measurements due to quantum space-time structure allow us to obtain estimates on the value of the fundamental length L. Among them, hyperfine structure gives the most stringent bound, L≤10−19 cm.

scholarly journals Probing the unidentified Fermi blazar-like population using optical polarization and machine learning

2019 ◽  
Vol 486 (3) ◽  
pp. 3415-3422 ◽  
Author(s):  
I Liodakis ◽  
D Blinov
Keyword(s):  
Machine Learning ◽  
Predictive Power ◽  
High Energy ◽  
Point Sources ◽  
Low Energy ◽  
Optical Polarization ◽  
Sky Surveys ◽  
Γ Ray ◽  
Energy Processes ◽  
The Universe

ABSTRACT The Fermi γ-ray space telescope has revolutionized our view of the γ-ray sky and the high-energy processes in the Universe. While the number of known γ-ray emitters has increased by orders of magnitude since the launch of Fermi, there is an ever increasing number of, now more than a thousand, detected point sources whose low-energy counterpart is to this day unknown. To address this problem, we combined optical polarization measurements from the RoboPol survey as well as other discriminants of blazars from publicly available all-sky surveys in machine learning (ML, random forest and logistic regression) frameworks that could be used to identify blazars in the Fermi unidentified fields with an accuracy of >95 per cent. Out of the potential observational biases considered, blazar variability seems to have the most significant effect reducing the predictive power of the frameworks to ${\sim }80\hbox{-}85{{\ \rm per\ cent}}$. We apply our ML framework to six unidentified Fermi fields observed using the RoboPol polarimeter. We identified the same candidate source proposed by Mandarakas et al. for 3FGL J0221.2 + 2518.

LIMITS FROM LEP 2 ON POSSIBLE ENHANCEMENT OF Re ∊′/∊ DUE TO ANOMALOUS GAUGE BOSON COUPLINGS

2001 ◽  
Vol 16 (supp01b) ◽  
pp. 669-671
Author(s):  
FRANCESCO TERRANOVA
Keyword(s):  
Standard Model ◽  
Low Energy ◽  
Hadron Colliders ◽  
Anomalous Couplings ◽  
The Past ◽  
The Poor ◽  
The Standard Model ◽  
Energy Processes ◽  
The Impact ◽  
Gauge Boson Couplings

It has been shown in the past that the real part of the ∊′/∊ ratio is particularly sensitive to anomalous gauge couplings that modify the Standard Model Lagrangian. Due to the loose bounds on these couplings coming from low energy processes and to the poor sensitivity of hadron colliders to couplings such as [Formula: see text], it has been argued that anomalous couplings could still produce an enhancement of Re ∊′/∊ bringing this observable closer to the experimental value obtained by KTeV, NA31 and NA48. The impact of the new measurements done at LEP2 in these years is discussed and new severe constraints to this hypothesis are determined.

Quantum electrodynamics. II

1939 ◽  
Vol 35 (3) ◽  
pp. 438-462
Author(s):  
F. Hoyle
Keyword(s):  
Quantum Electrodynamics ◽  
Finite Size ◽  
Direct Calculation ◽  
High Energy ◽  
Low Energy ◽  
Successive Approximations ◽  
Method Of Successive Approximations ◽  
Self Energy ◽  
Energy Processes ◽  
Real Test

It is shown in this paper and the preceding one that two separate forms of theory can be developed in which a “finite size” is attributed to a charged particle by means of its interaction with the radiation field. The region attributed in this way to the particle is four dimensional and is determined in such a manner that the usual difficulties with relativistic invariance do not arise.The advantage of such a theory becomes clear when the theory is applied to those problems in which the usual calculations give infinite results. The problem of the method of successive approximations is considered and satisfactory results are obtained provided that the space dimensions of the finite region are of the order of the classical radius of the electron, when the electron is at rest.It may be noted explicitly that the difficulty that has been associated with the emission of low energy quanta by “Bremsstrahlung” will not arise in the present formulation of the electromagnetic interaction between field and particles. This case is interesting since an infinity arises here which is not analogous to the self energy infinities, but occurs in the direct calculation of a physical process and not in a virtual transition.The theory seems satisfactory so far as low energy processes (< 137 mc2) are concerned and the real test of its applicability may be expected to arise in discussing processes of high energy. It is hoped to treat these in a later paper.

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