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Aspect of the biology of Rastrococcus sp.（Hemiptera：Psuedococcidae）on Acalypha hispida in southern guinea savanna of Nigeria
Acalypha antenna instar Rastroccocus savanna stylet
2009/3/3
The biology and description of various developmental stages of the mealybug found on the green acalypha plant in Ogbomoso, Southern Guinea Savanna was evaluated. The study shows that the stylets o...
Evaluation of vegetable and petroleum based diesel fuels in the aspect of lubricity in steel-aluminium association
RME fuel diesel fuel lubricity steel aluminium
2008/11/21
The paper presents the results of a study on wear resistance of elements of injection system operating in steelaluminium friction system with relation to the kind of fuel used. The fuels used in the s...
The present paper aims at showing that in the explanation of the nature of life two types of approach should be allowed: phenomenological and symbolic. The first is based on causativity, and the secon...
Ecological aspect of mobile systems operated in terrain conditions
mobile terrain system forest ecosystem mathematical simulation
2014/2/28
In this paper is evaluated an optimal constructional and operating performance of the mobil terrain system, that works in forest ecosystems from point of view of volume of processed biomass and total ...