Ara
Toplam kayıt 308, listelenen: 91-100
Mechanical and radiation attenuation properties of conventional and heavy concrete with diverse aggregate and water/cement ratios
(Croatian Association of Civil Engineers, 2022)
This paper presents the results of comprehensive laboratory work conducted for investigating the mechanical and radiation attenuation characteristics of heavyweight concrete produced with pyrite, chromium, and magnetite ...
Polarization effects on intersubband absorption in GaN/ZnGeN2 quantum wells
(Igdir University, 2021)
The effects of spontaneous and piezoelectric polarizations on the intersubband absorption in the GaN/ZnGeN2 quantum well are studied. Schrödinger and Poisson equations are solved self-consistently. The first order linear ...
Determination of heavy metal levels in some moss samples collected from near the highways in Burdur province
(Çankırı Karatekin Üniversitesi, 2021)
The main sources of atmospheric heavy metals deposition are agricultural activities, fossil fuels, central heating
stations and the exhaust gases of motor vehicles. In this study, the total of 29 mosses samples were ...
The radiation shielding properties of the low temperature alloys
(Afyon Kocatepe University, 2021)
Solder alloys are significant for many applications. In addition to the physical electrical and magnetic
properties of solders, it is of great importance to determine the shielding properties of the materials in
order ...
Hierarchical clustering of selected countries according to the variables of population, national income and exports of goods and services
(2021)
The changes in the population, gross domestic product (GDP) and exports of goods and services of the 32 countries
that we have selected for 25 years have annually been examined. In this study, we use hierarchical ...
Üçlü ters parabolik kuantum bariyer çift kuyu potansiyelinde enerji seviyeleri ile elektron geçişinin örgü parametreleri ve yoğun lazer alanına bağlılığının incelenmesi
(Marmara Üniversitesi, 2021)
Bu çalışmanın amacı, yoğun lazer alanı altında GaAs/AlGaAs lardan oluşan üçlü ters parabolik kuantum bariyer çift kuyu
potansiyelinde elektronik iletimi ve enerji seviyelerinin bariyer genişlikleri, lazer alanı giydirme ...
Improved performance of CdS powder-based hybrid solar cells through surface modification
(Gümüşhane Üniversitesi, 2021)
The effects of surface modification of CdS through organic Eosin-Y, indoline D205, and Ru-based complex N719 and
N3 dyes on CdS-based hybrid solar cells were studied. Chemical bath deposition (CBD) and doctor blade methods ...
Intersubband transitions in nonpolar ZnO/BeMgZnO quantum wells: effects of physical dimension, concentration and donor level
(Igdir University, 2022)
Polar ve semipolar yönlerde büyütülen BeMgZnO bariyer tabakaları üzerindeki ZnO kuyu
katmanlarının polarizasyon özellikleri araştırıldı. Gevşemiş ve gerilmiş bariyer katmanların durumları
göz önünde bulunduruldu. ...
On the 30th anniversary of the Chernobyl Nuclear Power Plant Accident, assessment of the activity concentrations and the radiological hazard parameters of soil samples collected from Rize province and districts
(Elsevier Ltd, 2021)
Uranium, thorium and potassium are the main terrestrial sources of radiation that are located at different levels in the soil depending on the geographical and geological conditions and contribute to increase of the natural ...
Assessment of metal concentrations (Cu, Zn, and Pb) in seawater, sediment and biota samples in the coastal area of Eastern Black Sea, Turkey
(Pergamon-Elsevier Science Ltd, 2017)
This study investigated the contents of Cu, Zn and Pb in seawater, sediment, different shell sizes of mussel (Mytilus galloprovinciaIis) and sea snail (Rapana venosa) samples collected from four different provinces of the ...