The monograph is devoted to the problem of ball lightning, which unites numerous other concepts embracing the whole spectrum of physical phenomena connected with electrical storm discharges and, possibly, those of other ...

Light-emitting diodes (LEDs) are of increasing interest among commercial greenhouse growers. They are currently being explored and developed in the horticultural industry for low-intensity photoperiodic lighting applications, ...

Pe baza cercetărilor teoretice şi experimentale a procesului de răcire a laptelui, a fost elaborat modelul matematic al acumulatoarelor cu frig natural şi instalaţiilor cu vid ce permit de a determina dependenţa regimurilor ...

The paper presents certain considerations regarding the choice and optimization of a composite material used to renovate the bearing-type joints. The polyamide PA 12 was used as matrix and was reinforced with molybdenum ...

Domeniul de analiză al acestei lucrări este cel de valorificare eficientă a surselor regenerabile de energie prin asigurarea calităţii biocombustibililor solizi obţinuţi din biomasă lignocelulozică, provenită din plante ...

Currently, a significant number of refusals conditioned by various random factors of influence take place in the electrical networks. The insurance of electric supply continuity to consumers is a very current issue for the ...

Sistemele electrice sunt cele mai răspândite sisteme tehnice. Procesul de funcționare a acestor sisteme este influenţat de o serie de factori cu caracter aleatoriu, care sunt cauza refuzurilor frecvente in alimentarea ...

The Power Electric Distribution Systems (PEDS) possess a great dynamics of development. Thanks to this phenomenon in the power electric distribution systems (PEDS) the probability of apparatus of asymmetrical regimes ...

Power systems irrespective of the voltage level represent some loose and quite compound electric circuits. In the study and analysis of the power systems it is necessary to take into 161 account the influence of the transient ...

In the article the fact of technological errors occurence is considered at details restoration of machines with polymeric coverings. As a result it was obtained the ecuation to calculate total errors for surfaces obtained ...