Search results for "PRINCIPLE"

Balancing Test

2021

ORNAMENTAL SIGN LANGUAGE IN THE FIRST ORDER TRACERY BELTS

2010

18 pages; We consider ornamental sign language of first order where principles of sieve displacement, of asymmetric building blocks as base of ornament symmetry, color exchangeability and side equivalence principles work. The generic aspects of sieve and genesis of ornamental pattern and ornament sign in it are discussed. The hemiolia principle for ornamental genesis is introduced. The discoverer of most of these principles were artist Modris Tenisons [4, 5, 6, 7 (refs. 23, 24), 8 (ref. 65)]. Here we apply systematical research using simplest mathematical arguments. We come to conclusions that mathematical argument in arising ornament is of much more significance than simply symmetries in i…

Lau Effect And Binary Logic

1989

The Lau effect is applied to implement the whole set of binary logic operations optically. Our technique works with spatially incoherent light and does not require lenses or any other optical accessory.

Public Governance Principles in General Education School Management of Latvia

2015

In contemporary world the effect of globalisation and information technologies cause transformational processes of states` public management that promote the application of new managament approaches and principles in public institution management.The changes in the public managament have effected and still effects processes of management also in education. The increase of school autonomy, a stronger focus on the process of education and its results created the need to expand the application of contemporary public management principles also in the managament of education institutions. The main goal of the report is to analyze the principles of public management and their implementation in th…

Parked Electric Vehicle’s Cabin Temperature Management Using Photovoltaic Powered Ventilation

2017

Abstract This paper presents how the electric vehicle roof integrated photovoltaic (PV) powered ventilation can be used for controlling the climate of the car. In this work, a fully-functional Renault Zoe electric car has been used to conduct experiments for PV powered ventilation. These experiments have been part of a wider research project of testing electric vehicles of the Edinburgh Napier University’s Transport Research Institute. The present work illustrates performance evaluation of electric car ventilation, when roof-mounted PV modules were used to operate DC powered fans for ventilation. It was found that the motor-fan selection for removing the warm air from cabin space is of impo…

Būtisks procesuāls pārkāpums kā pamats tiesību normas atzīšanai par neatbilstošu Latvijas Republikas Satversmei

2022

Likumdošanas process, kas vēsturiski ir bijis politiskas gribas izpausme, neierobežojot to ar tiesību normām, mūsdienu aktuālo vajadzību un cilvēka, tehnoloģiju un zinātnes attīstības kontekstā, vairs neiederas demokrātiskas tiesiskas valsts tvērumā. Labas likumdošanas princips sekmē, ka tiesību normas pieņemšanas process ne vien atbilst formālajām prasībām, bet arī veicina sabiedrības uzticību valstij un tiesībām. Tas ir racionālāks un pieņemtie lēmumi ir zinātniski pamatoti. Pētījuma mērķis ir vērtēt būtisku procesuālu pārkāpumu kā pamatu tiesību normas atzīšanai par neatbilstošu Latvijas Republikas Satversmei. Pētījuma rezultātā tiek konkretizēti kritēriji, kas ir nozīmīgi, nošķirot būti…

On Language Adequacy

2015

Abstract The paper concentrates on the problem of adequate reflection of fragments of reality via expressions of language and inter-subjective knowledge about these fragments, called here, in brief, language adequacy. This problem is formulated in several aspects, the most general one being: the compatibility of the language syntax with its bi-level semantics: intensional and extensional. In this paper, various aspects of language adequacy find their logical explication on the ground of the formal-logical theory of syntax T of any categorial language L generated by the so-called classical categorial grammar, and also on the ground of its extension to the bi-level, intensional and ex- tensio…

Reversible self-assembly of metal chalcogenide/metal oxide nanostructures based on Pearson hardness.

2010

Nanotechnology has reached a stage of development where not individual nanoparticles but rather systems of greater complexity are the focus of concern. These complex structures incorporate two or more types of materials, an example of which is the formation of metal–semiconductor hybrids, which effectively combine the properties of both materials. The assembly of multicomponent nanoparticles from constituents with different optical, electrical, magnetic, and chemical properties can lead to novel functionalities that are independent of the individual components and may be tailored to fit a specific application. These applications include such far-reaching challenges as solar energy conversio…

Glassy dynamics in thin polymer films: recent MD results

2002

The influence of a film geometry on the glass transition is investigated via molecular dynamics (MD) simulations of a (non-entangled) polymer melt. The confinement is realized by two identical potential barriers of the form U wall = z -9 , where z denotes the distance of a particle from the wall. Despite the geometric confinement, basic qualitative features of the system dynamics can be well described in the framework of the mode-coupling theory (MCT). Examples are the two-step relaxation of the incoherent intermediate scattering function, the time-temperature superposition property of the late time α-process and the space-time factorization of the scattering function on the intermediate ti…

Combined main chain/side chain polymers. A new class of liquid crystalline polymers with unusual structural, thermodynamic and dynamic properties

1990

Abstract Combined main chain/side chain polymers carry rigid rod-like mesogenic units both in the side chain and along the chain backbone. The properties of such combined systems are expected to be controlled by the competition of the interactions between the mesogenic units in the side and main chains as well as the tendency of the chain backbones to maximize their entropy. The thermodynamic, structural and dynamic properties of such combined main chain/side chain liquid-crystalline polymers were investigated for various chain architectures. The combined systems were found to display properties corresponding in many cases to a favourable superposition of properties characteristic of both m…