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Found: 10 Piece 0.001 sn
Publication year : 2019 ✕Databases : Sciencedirect ✕
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Subject Headings [35]
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A Panel Study of the Impact of R&D on Financial Performance: Evidence from an Emerging Market

Mahmut ERDOĞAN | Adilya YAMALTDİNOVA

In recent years, innovation and R&D activities have been one of the most important factors affecting the growth strategies of the companies and their financial performance. However, it is the fundamental elements of sustainable economic growth, innovative activities have strategic decision-making characteristics due to their effects on efficiency and market value. The aim of this paper is to investigate the effects of R&D expenditures on the financial performance of 62 production companies listed in Borsa Istanbul in the period of 2008-2017 by using panel data methods. We used return on assets ...More

Proceedings Paper 2019 İktisadi ve İdari Bilimler Fakültesi Procedia Computer Science158 47 Views
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Activated carbon obtained from the cotton processing wastes

Külümkan SARTOVA | Emil ÖMÜRZAK | Bakıt BORKOYEV

Activated carbon (AC) was obtained from the cotton (Gossypium malvaceae) processing waste materials. The process was carried out by carbonization at 500–800 °C and subsequent activation at 800 °C by water stream. Cotton biomass is a renewable, low-cost alternative source for textile and food products; however, it hasn't been used for manufacturing of an activated carbon by carbonization in a boiling layer method. Characterization of adsorbents by means of Scanning Electronic Microscope and FT-IR showed that high porosity of carbonized products which was achieved and functional groups were form ...More

Article 2019 Mühendislik Fakültesi Diamond and Related Materials91 180 Views
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Preparation of molecularly imprinted PDMS elastomer for selective detection of folic acid in orange juice

Nahit AKTAŞ

Herein, it is reported an effective method to prepare novel molecularly imprinted polymers (MIP) on poly(dimethylsiloxane) (PDMS) elastomer via a combination of non-covalent imprinting approach and surface initiated reversible addition fragmentation chain transfer (SI-RAFT) polymerization for sensitive and selective detection of folic acid (FA). For this purpose, 2-(2-Methoxyethoxy) ethyl methacrylate (MEOMA), ethylene glycol dimethacrylate (EGDMA), azobisisobutyronitrile (AIBN), FA and dimethylsulfoxide (DMSO) were used as functional monomer, cross-linker, initiator, template molecule, and po ...More

Article 2019 Mühendislik Fakültesi Applied Surface Science471 ( 31 ) 123 Views
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Ultrafilter-completeness on zero-sets of uniformly continuous functions

Asılbek ÇEKEEV

The various types of ultrafilter-completeness on zero-sets of uniformly continuous functions are introduced, their properties are studied and characterizations in the category are given.

Proceedings Paper 2019 Fen Fakültesi Topology and its Applications252 111 Views
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The investigation of the use of plant-based wild mustard and boron doped oil as engine lubrication oil in diesel engines

Hüseyin ÖĞÜT

In internal combustion engines, mineral engine oils which serve as lubricants between parts are not used alone due to technical reasons and various additives are made use of for better lubrication. In these additives, liquid boron serves to reduce friction. To reduce the environmental damage caused by engine lubrication oils, it is necessary to improve the properties of biological oils so that they can be used and compete with mineral oils technically. In the study, the use of liquid boron as an engine lubrication oil additive, together with wild mustard oil methyl ester, was investigated. Two ...More

Article 2019 Meslek Yüksekokulu Renewable Energy136 96 Views
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Investigation of engine performance and kit design for the usage of safflower oil as in diesel engine

Hüseyin ÖĞÜT

In Turkey, the consumption of diesel oil is increasing both in transportation and in agricultural fields. In this study, the opportunities of the use of safflower oil, which grow originally in Turkey as a direct fuel in diesel engines, were researched to provide a new alternative for biofuel industry and to popularize the farming of oil crops. In this study, the kit design was completed first, and afterwards safflower oil was exposed to the process of neutralization and laundering, and then turned into standard fuel. For engine performance experiments, reference experiences were conducted by ...More

Article 2019 Meslek Yüksekokulu Renewable Energy143 125 Views
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Study of moisture content and water activity of rice using fluorescence spectroscopy and multivariate analysis

Cıldızay ÖZBEKOVA | Asılbek KULMIRZAYEV

The potential of fluorescence spectroscopy for non-destructive and rapid measurement of moisture content (MC) and water activity (a(W)) of rice was examined. A total of n 15 samples of rice produced at different locations were studied. The emission fluorescence spectra of tryptophan (305-600 nm, excitation: 290 nm) and emission fluorescence spectra of riboflavin (410-700 nm, excitation: 370 nm) were collected from milled rice. MC and a(W) of the rice samples were measured. Spectral data were subjected to principal component analysis (PCA) and partial least squares discriminant analysis (PLSDA) ...More

Article 2019 Mühendislik Fakültesi Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy223 81 Views
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Characterization of Beauveria bassiana isolates from Kyrgyzstan

Tinatin DOOLOTKELDİEVA | Saykal BOBUŞOVA | Sezim COLDOŞBEKOVA

We report on the enzootic foci of the insect pathogenic fungus, Beauveria bassiana, found in high meadows in the middle mountain steppes of Kyrgyzstan, at elevations from 1000 m to 2200 m. The growth characteristics of various B. bassiana isolates on different media and as a function of temperature were studied. In addition, the ability of the fungal isolates to produce enzymes with amylase, protease and lipase activities was investigated. Dense biomass production on inexpensive solid media (oatmeal and bean oil meal) produced conidia used for insect bioassays targeting white grub larvae (Phyl ...More

Article 2019 Ziraat Fakültesi Journal of Invertebrate Pathology167 36 Views
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Echocardiographic assessment of left ventricular systolic function in neonatal calves with naturally occurring sepsis or septic shock due to diarrhea

İsmail ŞEN | Hasan GÜZELBEKTEŞ

Sepsis is associated with clinically relevant cardiovascular changes. The objectives of this study were to evaluate the clinical value of echocardiography for monitoring left ventricular (LV) systolic function in septic calves. A prospective longitudinal study was performed using a convenience sample. Twenty septic calves and 10 healthy calves were enrolled in the study. Arterial blood pressure (BP) was measured and M-mode echocardiography performed to characterize LV systolic function; the latter included measurement of ejection fraction, EF; stroke volume, SVI and cardiac output indexed to b ...More

Article 2019 Veteriner Fakültesi Research in Veterinary Science126 79 Views
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Composition, nitrogen fraction, and amino acid profile of mare's milk produced in the mountains and highlands

Ayçürök MACİTOVA | Asılbek KULMIRZAYEV

The study was carried out to determine the effect of 2 ecological regions and lactation period on chemical (P < 0.01) and amino acid (P < 0.01) composition and nitrogen fraction (P < 0.01) of mares grazing on pastures at 1700 m (vegetation is dominated by shrubs and sub-shrubs) and 2200 m (vegetation is dominated by grasses, forbs, sub-shrubs) above sea level. The animals were kept under extensive pasture conditions and received no additional feed supplements. Milk samples were collected monthly from May to July and from May to August from mares grazing at 1700 m (Mountains) and 2200 m (Highla ...More

Meeting Abstract 2019 Mühendislik Fakültesi Journal of Dairy Science102 ( Supplement 1. Meeting Abstract LB1 ) 155 Views
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