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385 results for “productivity”
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Research ArticleOpen accessEvery word in the titleImproving Reliability and Productivity of an Aluminum Extruder by Implementation of Direct Torque Control TechnologyMazouz A. SalahatProblem statement: The linear motor drive is widely used in driving an extrusion puller in an aluminum extrusion industry. The main disadvantage of this drive is manual and step-wise torque control. This research was done to replace the linear motor drive by AC drive with direct torque control technology. Approach: Mathematical calculations were carried to select an AC drive which … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 7,271 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleImpact of Dietary Feed Additives on Productivity in Broiler ChickensGaukhar Moldakhmetova, Zhanar Kussainova, Shohkan Alpeisov et al.Proper feeding is a key aspect of poultry farming; a balanced diet supports flock health, prevents infectious diseases, and enhances product quality. A relevant issue in poultry farming is the use of various probiotics and feed additives that positively impact gut health and its microbiota, which in turn promotes the growth and development of birds. In a scientific-farm experiment, the … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 3 · 4 Dec 2025 · 2,942 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleIsolation and Culture of Oocytes from Dairy Cows' Ovaries for Productivity in the Southeastern Region of KazakhstanDauren Maratovich Bekenov, Batyrkhan Azimkhanovich Buralkhiev, Yusupzhan Artykovich Yuldashbayev et al.This research work aims to study methods for isolating and culturing follicular oocytes from Holstein cows in vitro. The proven complex of technologies for embryo transplantation on an industrial scale will provide a 3-5-fold acceleration of reproduction of highly productive cows. As a result of scientific research, biotechnological methods of accelerated reproduction of dairy cattle have been substantiated and introduced … …OnLine Journal of Biological Sciences, Vol. 24, Issue 4 · 14 Oct 2024 · 4,304 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Effects of the Degree of Soil Salinity and the Bio preparation on Productivity of Maize in the Shaulder Irrigated MassifMaksat Nurbaiuly Poshanov, Shakhislam Uzakbaevich Laiskhanov, Zhassulan Maratovich Smanov et al.During the study on the Shaulder irrigated massif, the soil salinity maps with different degrees of salinity were compiled at the large-scale 1:10000 in the GIS environment. It was found that the area of saline soils increases with depth. In the upper 0-20 cm layer, 29% is salted and in the 50-100 cm layer, up to 44% is salted. The … …OnLine Journal of Biological Sciences, Vol. 22, Issue 1 · 11 Feb 2022 · 6,739 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleA Suggested Nonparametric Bivariate Logistic Density Estimator with Application on the Productivity of Egyptian Wheat during 2019/2020Samah M. Abo-El-HadidIn this study, the nonparametric standard logistic density estimator, introduced by Abo-El-Hadid (2018), is extended to the bivariate case. The multiplicative standard logistic distribution is used as a kernel function to derive the bivariate kernel estimator. The statistical properties of the resulting estimator are studied, which are: The asymptotic bias, variance, Mean Squared Error (MSE) and Integrated Mean Squared Error … …Journal of Mathematics and Statistics, Vol. 17, Issue 1 · 27 May 2021 · 6,716 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Composted Animal Manure as Fertilizer on Productivity of Azolla Pinnata Grown in Earthen PondsRistianto Utomo, Cuk Tri Noviandi, Nafiatul Umami, Adhitya PermadiAzolla pinnata contains a high nutritional value with a high protein content of 25%, so it can be used as an alternative to animal feed. The low production of Azolla is caused by the suboptimal use of fertilizers. This study aims were to determine the type of manure (composted manure from poultry, goats, and rabbit) which was the most optimal … …OnLine Journal of Biological Sciences, Vol. 19, Issue 4 · 9 Nov 2019 · 11,074 accessesView PDFCite
InvestigationOpen accessEvery word in the titleInfluence of the M-Feed Additive on Metabolism and Productivity of Laying QuailsDjunaidi Sharamazanovich Gayirbegov, Ibrahim Farqad Shawqi Ibrahim, Alexander Ivanovich Andreev et al.The paper shows the impact of the M-feed new generation feed additive in the quail diets on their growth energy, the quality of the egg and the biochemistry of the laying quails. It has been established that of the three feed additive dosages under study the daily dosage of 200 mg/100 g of the combined feed provides the most favorable … …OnLine Journal of Biological Sciences, Vol. 18, Issue 2 · 4 May 2018 · 7,143 accessesView PDFCite
InvestigationOpen accessEvery word in the titleProductivity of Lettuce Varieties in Conveyor Cultivation in the Open and Protected Soil of the Southeast of KazakhstanGulzhan Kussainova, Mirjana Vasić, Dina Smagulova et al.In the framework of diversification of vegetable production in Kazakhstan, special attention is paid to minor vegetable crops. Conveyor cultivation of green vegetables plays an important role in providing fresh vegetables to consumers year-round. In this regard, two types of lettuce have been studied: Leaf lettuce and heading lettuce. The studies were performed in 2014-2016 at the Kazakh Research Institute … …OnLine Journal of Biological Sciences, Vol. 18, Issue 2 · 14 Apr 2018 · 7,457 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleTropospheric Ozone Effects on the Productivity of Some Crops in Central Saudi ArabiaAkram Ali, Ahmad Alfarhan, Ernest Robinson et al.This study was conducted to evaluate damaging degree of ambient ozone (O3) levels in certain economically important crops in typical areas of the central KSA (Riyadh). Daily mean ozone concentrations were recorded by portable O3 analyzers in the center of Batha, Naseem, Oleya and Industrial City, from the beginning of October, 2006 to middle of June, 2007. Maseef area was … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 7,252 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSustainable Technology for Agriculture at Extreme Altitudes: Design and Evaluation of a Sprinkler Irrigation System in a Peruvian High Andean CommunityJuan Eduardo Suarez Rivadeneira, Freddy A. Manayay, Daniel Olivier Carranza Lizana et al.In high-altitude agroecosystems, erratic rainfall patterns and steep topography severely constrain crop productivity by exposing plants to soil water deficits during critical phenological stages. This study aimed to enhance the productivity of eleven staple and horticultural crops corn (Zea mays), tomato (Solanum lycopersicum), cucumber (Cucumis sativus), eggplant (Solanum melongena), lettuce (Lactuca sativa), carrot (Daucus carota), barley (Hordeum vulgare), celery (Apium … …OnLine Journal of Biological Sciences, Vol. 26, Issue 4 · 2 Oct 2026 · 663 accessesView PDFCite