Determining the Dirac CP Violation Phase and Neutrino Mass Hierarchy
Issue:
Volume 10, Issue 4, July 2021
Pages:
60-70
Received:
22 July 2021
Accepted:
2 August 2021
Published:
12 August 2021
Abstract: There is still a problem in neutrino physics related to the configuration of neutrino masses: Are neutrinos arranged by masses following the Standard Model as three generations of fundamental particles, Gen III>Gen II>Gen I, thus forming a structural-normal hierarchy, or deviate from that principle? The biggest obstacle that is still present is the sign of the absolute value of the difference of the square of neutrino masses. It was avoided by applying the theory of neutrino oscillation probability for each structure of the neutrino mass hierarchy. With such theoretical approach the equation of motion was derived for each structure in which Dirac CP violation phase appeared as an unknown quantity. This enables direct calculation of the explicit value for the Dirac CP violation phase. Two examples were analyzed: The first example is devoted to the normal mass ordering and the second one is devoted to the inverted mass ordering. The data used for theoretical calculations presented in this paper are obtained on the basis of the latest reassessed data by processing the results of experimental measurements. On the basis of the performed calculations, normal mass ordering is unconditionally excluded as a potential option regarding the neutrino mass ordering in nature. On the basis of the derived equation of neutrino motion, a possible numerical value of the Dirac CP violation phase and Jarlskog invariant is found.
Abstract: There is still a problem in neutrino physics related to the configuration of neutrino masses: Are neutrinos arranged by masses following the Standard Model as three generations of fundamental particles, Gen III>Gen II>Gen I, thus forming a structural-normal hierarchy, or deviate from that principle? The biggest obstacle that is still present is the...
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Silent Ships - a New Challenge for the Shipbuilding Industry
Issue:
Volume 10, Issue 4, July 2021
Pages:
71-92
Received:
5 July 2021
Accepted:
28 July 2021
Published:
12 August 2021
Abstract: This publication presents new research techniques for noise abatement on ships obtaining vibroacoustic parameters of passenger and crew accommodations for newly designed ships. The construction of low-noise ships is a new technical challenge for naval architects, shipbuilders and shipowners. It also requires a new way of looking at these problems. The suggested new research methods based on sound intensity (SI) and laser anemometry techniques (PIV, LDA) in combination with graphical presentation as acoustical imaging (AI) of the field distribution of acoustic wave flows, gives a full range of interpretation possibilities of energy effects and the precautions taken. This will ensure vibro-acoustic optimisation of the product and meet design and standardisation objectives for noise and vibration levels on board. SI analyses are supported by acoustic orthogonal decomposition (AOD) of disturbed acoustic vector fields with a turbulent structure. The innovative SI-AOD method, combined with acoustical imaging (AI) of the results, allows a comprehensive interpretation of noise causes and becomes an highly effective tool for noise abatement on board ships. With a new, holistic approach to explain the mechanism of penetration of structure-borne and airborne sounds into ship interiors, it creates a balance of acoustic power of local sources of noise, which is the basis for the choice of methods for noise reduction. The author describes the mechanism of noise generation inside shipboard accommodations and in shipboard HVAC systems.
Abstract: This publication presents new research techniques for noise abatement on ships obtaining vibroacoustic parameters of passenger and crew accommodations for newly designed ships. The construction of low-noise ships is a new technical challenge for naval architects, shipbuilders and shipowners. It also requires a new way of looking at these problems. ...
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Classical Physics-based Renewable and Sustainable Energy Transition Concept
Issue:
Volume 10, Issue 4, July 2021
Pages:
93-100
Received:
9 June 2021
Accepted:
1 July 2021
Published:
31 August 2021
Abstract: By many accounts, Lorentz was ahead of his time by suggesting before quantum mechanics that some disturbances, like waves, travel with particles through a vacuum without moving it. The waves associated with the Lorentz metrics are described by the Klein-Gordon equation and dispersion relation w2=c2k2+wc2. In hydromechanics, they are known as non-propagating waves and wc is a constant called the cutoff frequency. The waves are not propagating if their frequency is below the cutoff frequency wc. Their group and phase velocity are related by vu=c2, in the infinite k limit v=u=c. A quantum object is considered as a particle moving in resonance with wave characterized by the Klein-Gordon dispersion relation with cutoff or Compton frequencywc=mc2/ħ. This approach brings field values (group velocity and intensity of transverse non-propagating waves) into Maxwell's equations, and antiparticles or non-propagating waves with negative group velocity into Newtonian mechanics. In classical astrophysics, matter-antimatter interactions led to the universe expansion, formation of galaxiesand sources of intense cosmic radiation. Classical field theory could play a major role in clean energy research. In particular, concentrating solar power (CSP) systems, i.e. Stirling engine (SE) or small direct-heated tower, with thermal energy storage (TES), diffuse light-utilizing photovoltaic (PV) cell and 3D-printed thermal field emission (TFE) converters will dramatically lower the cost and energy payback time of the CSP technologies. The design explores recent developments in field-effect PV cells. 3D-printed TFE panels-integrated in TES or micro-channel solar receivers. The improved performance of the TFE converter compared to photovoltaic cells at high temperatures is attributed to the simultaneous use of diffusion and ballistic electron transport to harvest both thermal and photon energy. In addition, a gas cooled water moderated reactor is explored to integrate electrical-in-nature nuclear energy into smart micro-grids. and convert the most hazardous wastes into an emission-free fuel and medical isotopes. Transmutation reactor, in which depleted uranium acts initially as an absorber and later as fuel, behaves like fast reactors, but without their difficult control problems and high fissile fuel load.
Abstract: By many accounts, Lorentz was ahead of his time by suggesting before quantum mechanics that some disturbances, like waves, travel with particles through a vacuum without moving it. The waves associated with the Lorentz metrics are described by the Klein-Gordon equation and dispersion relation w2=c2k2+wc2. In hydromechanics, they are known as non-pr...
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