نتایج جستجو برای: l25
تعداد نتایج: 362 فیلتر نتایج به سال:
Objectives: All businesses worldwide, especially small and medium-sized organizations, are now concerned about environmental degradation. Eco-innovation collaboration expected to be the driving forces for saving environment performance of companies. Therefore, this study aimed ascertain how eco-innovation cooperation affect financial, social, SMEs. This also explored as a moderating variable ef...
The population parameters of Malabar trevally (Carangoides malabaricus) were studied in the Persian Gulf and Oman Sea from December 2016 to November 2017. 1030 specimens were collected. The fork length ranged from 14 to 34 cm, with average 25.60±3.52 cm. The total weight ranged from 60.4 to 534.5 g, with average 329.03±113.46 g. The asymptotic length (L∞) and growth coefficient (K) were 37 cm a...
این مطالعه به بررسی رابطه ی اندازه با رشد بنگاه های حاضر در صنایع مواد غذائی و آشامیدنی ایران می پردازد. در این مطالعه داده های خام طرح جامع آمارگیری کارگاه های صنایع کارخانه ای مرکز آمار ایران مورد استفاده قرار گفته است. اعتبار فرضیه ی گیبرات برای بنگاه های حاضر در این صنایع در دو زیر گروه بنگاه های کوچک و بزرگ مورد آزمون قرار گرفته است. آزمون اعتبار این فرضیه با استفاده از روش برآورد مدل به ص...
Due to growing environmental concerns and economical social problems in manufacturing sectors, there is a huge demand for the substitution of existing cutting fluids. Further, fluids selected are expected reduce force, improve surface roughness also minimize tool wear during machining operations. Hence, this paper discusses tribological morphological behaviour AISI 316L stainless steel while tu...
The present investigation aimed at a sustainable green turning operation of Ti-6Al-4V alloy using multi-objective optimization surface roughness, tool flank wear, material removal rate, and wear loss with cutting speed, feed depth cut as input parameters. experiments were performed on CNC lathe machine an alumina-zirconia (Al2O3-ZrO2) ceramic insert under dry machining environment. to examine t...
Se ha estudiado el comportamiento tribológico de materiales compuestos matriz metálica aluminio (AA5083)/nano-Al2O3 con un porcentaje refuerzo variable 2, 4, 6 y 8% en peso partículas nano-Al2O3. Los Al/nano-Al2O3 se prepararon utilizando una ruta colada por agitación. Las imágenes microscopía electrónica barrido (MEB) los sugirieron dispersión casi uniforme las nanopartículas la Al. El al desg...
The leaching process of cobalt using a wide range experimental variables is described. treated samples were from the Kalumbwe Mine in south Democratic Republic Congo. In this study, predictive model recovery both Taguchi statistical method and an artificial neural network (ANN) algorithm was proposed. utilising L25 (55) orthogonal array ANN multi-layer, feed-forward, back-propagation learning a...
The main objective of this article is to show how the Austrian School Economics, based on solid theoretical principles, anticipated, through its exponents, innovation processes, that we are currently experiencing, would develop. clear identification current phenomena with “Austrian” doctrine greatest evidence full validity these ideas. We will show, in a non-exhaustive way, application day-to-d...
The literature focused on analyzing profit persistence in the agricultural sector is scarce. This paper contributes to reducing this gap by carrying out an empirical study of 10 types farming Spain based a dynamic panel model with microeconomic data from large sample farms provided Spanish Farm Accountancy Data Network. generalized method moments system estimator used assess persistence, includ...
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