Detaylı Arama
İptal
Bulunan: 132 Adet 0.001 sn
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Filtreler
Filtreler
Bulunan: 132 Adet 0.001 sn
Yayıncı : Elsevier ✕
Koleksiyon [6]
Araştırmacılar [35]
BM Sürdürülebilir Kalkınma [14]
Fakültesi / Enstitütü [9]
Yayın Türü [4]
Yayımlanma Yılı [17]
Dil [2]
Kaynak [35]
Veri Tabanları [3]
İndex Türü [8]
Yayıncı [1]
Bölümü [20]
Ulusal/Uluslararası [1]
Konu Başlıkları [35]
Erişime Açık

The first combined archaeological and archaeometric analyses on Bronze Age pottery from Kyrgyzstan (Uch Kurbu site)

Kubatbek TABALDİYEV

The integration of the Bronze Age populations in Kyrgyzstan into the Andronovo sphere is largely based on the resemblance of the ceramic material discovered at the Kyrgyz sites with the pottery from various Andronovo sites, which has been explained by human migrations. However, very few detailed pottery studies have been conducted, and no archaeometric analyses have been applied to date to the material from Kyrgyzstan. We present a first investigation on Bronze Age pottery from Uch Kurbu (Kyrgyzstan) through a combined archaeological (field-based stylistic and macroscopic examinations) and arc ...Daha fazlası

Makale 2020 Edebiyat Fakültesi Journal of Archaeological Science: Reports31 125 Görüntülenme
Erişime Açık

Performance analysis of healthcare supply chain management with competency-based operation evaluation

Adem GÖLEÇ | Gülnara KARADENIZ

The performance analysis of healthcare supply chain management (SCM) has become extremely important as healthcare systems have begun to struggle to enhance operational efficiency and diminish costs. The aim of this study was to measure healthcare SCM in accordance with competency-based operation evaluation. The study was organized as a hierarchical structure based on the main processes, sub-processes, and their operations of healthcare SCM. It is considerably difficult to quantify the competency of an operation. Therefore, a fuzzy model was developed to measure healthcare SCM performance accor ...Daha fazlası

Makale 2020 İktisadi ve İdari Bilimler Fakültesi Computers & Industrial Engineering146 58 Görüntülenme
Erişime Açık

Preparation of stabilized silver and tin nanocomposites by electrical discharge

Emil ÖMÜRZAK

In this study silver and tin nanocomposites were synthesized by electro spark dispersion in ethanol. Resulting nanocomposite was characterized by using the powder x-ray diffraction and emission scanning electron microscopy. It was found by X-ray phase analysis that the product obtained by electro spark joint dispersion of silver and tin in ethanol consists of two phases: Ag3Sn and beta-Sn. The results of processing SEM micrographs of the product of the Ag-Sn system show that the obtained phases are spherical nanostructures with sizes of 30-60 nm. This size of nanostructures was associated wit ...Daha fazlası

Konferans Bildirisi 2020 Mühendislik Fakültesi MATERIALS TODAY-PROCEEDINGS31 ( Part 3 ) 103 Görüntülenme
Erişime Açık

Mapping burial mounds based on UAV-derived data in the Suusamyr Plateau, Kyrgyzstan

Kubatbek TABALDİYEV | Künbolot AKMATOV

Located in the northern part of the Tian Shan Mountains, at an average elevation of over 2200 m.a.s.l., the Suusamyr Plateau is home to numerous archaeological sites. Nonetheless, there is little to no information available regarding the spatial characteristics and preservation conditions of these complex burial grounds. During the recent years, unmanned aerial vehicles (UAVs) have offered the possibility of fast acquisition of high -resolution images that facilitate the identification and documentation of archaeological sites and features. Given these advantages over 1500 ha (29 individual si ...Daha fazlası

Makale 2020 Edebiyat Fakültesi Journal of Archaeological Science123 64 Görüntülenme
Erişime Açık

The Dieudonne tau-complete spaces and free topological groups of uniform spaces

Asılbek ÇEKEEV

For a Tychonoff space X, the Dieudonne tau-completion of X, denoted by mu TX, is investigated. The space mu TX is defined as the completion of X with respect to the uniformity uTX, where uTX is generated by all continuous mappings of X to metric spaces of weight

Makale 2020 Fen Fakültesi Topology and its Applications281 ( Special Issue ) 76 Görüntülenme
Erişime Açık

Escherichia coli O157 in fish: Prevalence, antimicrobial resistance, biofilm formation capacity, and molecular characterization

Ruslan ADİL AKAY TEGİN

This study was performed to survey the incidence of Escherichia coli O157:H7 contamination in fish samples which were obtained from different fish farms and retail markets. For this purpose, a total of 140 fish samples were analyzed according to ISO 16654 and screened for virulence genes by mPCR. Antibiotic susceptibility tests were performed with the disc diffusion method and isolates were genotyped by using Enterobacterial repetitive intergenic consensus (ERIC) PCR. Of the 140 analyzed sample, two (1.4? from the same farm, were found to be contaminated with E. coli O157 serogroup, one of whi ...Daha fazlası

Makale 2020 Mühendislik Fakültesi LWT - Food Science and Technology133 92 Görüntülenme
Erişime Açık

Chronological echocardiographic evaluation of left ventricular systolic and diastolic function in term and premature neonatal calves

İsmail ŞEN

Echocardiographic studies in human neonatology has demonstrated that prematurity can lead to cardiovascular dysfunction and especially compromises the left ventricular (LV) systolic and diastolic functions. As echocardiographic studies have not been performed on cardiovascular dysfunction in premature calves, we echocardiographically evaluated and compared the LV systolic and diastolic function in full-term and premature calves. We followed the hemodynamical changes of LV during first 3 days of life. Twenty premature calves and 10 healthy term calves were enrolled in the study. 2D, M-mode and ...Daha fazlası

Makale 2020 Veteriner Fakültesi Theriogenology158 93 Görüntülenme
Erişime Açık

Ammonia removal from wastewater by air stripping and recovery struvite and calcium sulphate precipitations from anesthetic gases manufacturing wastewater

Mehmet KOBYA

Anesthetic gas plant wastewater (AGPW) contains high concentrations of ammonia (NH3-N) and sulphate ions, which is known to results in severe environmental pollution in aquatic ecosystems without treatment. In the first stage of this study, a lab-scale investigation was done to improve removal of ammonia from AGPW by air stripping and struvite (or MAP: magnesium ammonium phosphate) precipitation processes, separately. The main operating parameters such as pH, air flow rate (L/min) and operating time were optimized for air stripping. The theoretical amount of removed ammonia via the air strippi ...Daha fazlası

Makale 2020 Mühendislik Fakültesi Journal of Water Process Engineering38 115 Görüntülenme
Erişime Açık

Developing poly(Agar-co-Glycerol-co-Thyme Oil) based organo-hydrogels for the controlled drug release applications

Nahit AKTAŞ

In this study, it was aimed to investigate the synthesis, characterization and drug release behaviors of organohydrogels containing pH-sensitive Agar (A), Glycerol (G), Thyme Oil (TO). The novel organo-hydrogels containing TO were prepared in an emulsion media by the free-radical polymerization and crosslinking reactions among Agar (A), Glycerol (G), TO, N, N, methylenebisacrylamide (MBA) or glutaraldehyde (GA) reagent. Swelling ability (ethanol, acetone, ethanol/ID water (1:1), acetone/ID water (1:1) and gasoline environments and different pH), Fourier Transform Infrared Spectroscopy (FTIR) a ...Daha fazlası

Makale 2020 Mühendislik Fakültesi Journal of Drug Delivery Science and Technology60 138 Görüntülenme
Erişime Açık

Characterization of p(PmO), p(LO) and p(RO) organoparticles, their bioactivity properties and their effect on pancreatic cancer Capan-1 cell

Nahit AKTAŞ

For the first time in the literature, p (PmO), p (LO) and p (RO) organo-particles were synthesized from Peppermint oil, Lemon oil and Rose oil. Of the organo-particles L-929 cell line viability/cytotoxicity and anticancer effect against Capan-1 pancreatic cancer cell line were investigated. p (PmO), p (LO) and p (RO) organo-particles were featured by thermogravimetry (TGA), Fourier Transform Infrared Spectroscopy (FTIR), Scanning electron microscope (SEM), Particle size (DLS), and particle charge (zeta potential, Zeta) analyses. Antioxidant, biocompatible, and antimicrobial activities and in v ...Daha fazlası

Makale 2023 Mühendislik Fakültesi Materials Chemistry and Physics305 42 Görüntülenme
Erişime Açık

Effect of surfactant materials to nanoparticles formation under pulsed plasma conditions and their antibacterial properties

Emil ÖMÜRZAK | Ruslan ADİL AKAY TEGİN

Pulsed plasma between two Zn rods submerged into aqueous solution of cetyl trimethylammonium bromide (CTAB) and sodium dodecyl sulphate (SDS) surfactants resulted in formation of pure ZnO nanorods, while the pulsed plasma between two Zn rods in water without surfactant yielded a mixture of ZnO and Zn nanoparticles. Carbon coated ZnO nanorods with about 20 nm thickness and 150 nm length were synthesized by this method using different surfactant materials such as CTAB and SDS. Cu nanoparticles of about 10 nm in size were also synthesized by the pulsed plasma in aqueous solution of 0.2 % gelatine ...Daha fazlası

Konferans Bildirisi 2018 Mühendislik Fakültesi Materials Today: Proceedings5 ( 7-3 ) 106 Görüntülenme
Erişime Açık

High-performance carbon black electrode for oxygen reduction reaction and oxidation of atrazine by electro-Fenton process

Mehmet KOBYA

The aim of this study is to produce an electrode that can be used in H2O2 production and Electro-Fenton (EF) process by an effective, cheap, and easy method. For this reason, a superhydrophobic electrode with a higher PTFE ratio and high thickness was produced with a simple press. The produced electrode was used in the production of H2O2 and mineralization of Atrazine. First, the effect of pH, cathode voltage, and operation time on H2O2 production was evaluated. The maximum H2O2 concentration (409 mg/L), the highest current efficiency (99.80? and the lowest electrical energy consumption (3.16 ...Daha fazlası

Makale 2021 Mühendislik Fakültesi Chemosphere287 ( 4 ) 100 Görüntülenme
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