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Toplam kayıt 10, listelenen: 1-10
Design and analysis of quad-band grid array microstrip antenna at UWB and ISM channel frequencies for WBAN operations
(Institute of Electrical and Electronics Engineers Inc., 2018)
In this paper, we present design and simulation of a compact grid array microstrip patch antenna. In the design of antenna a RT/duroid 5880 substrate having relative permittivity, thickness and loss tangent of 2.2, 1.57 ...
The effect of blowing direction on heat sink performance by thermal imaging
(Yildiz Technical University, 2018)
Heat sinks (HSs) are designed for the mechanical, electrical and electronic components that generate heat in considerable amount. For this purpose, an aluminum conical pin fin heat sink is designed. Aluminum conical pin-fins ...
Effect of hyper-plasticizer additive rates on the properties of polypropylene fibre tempered concretes
(Springer, 2018)
In this study, effect of different rates of hyper-plasticizer additives on the physical and mechanical properties of polypropylene fibre tempered concretes was investigated. The factors of slump and compaction, which are ...
Use of waste concrete in cement production
(Springer, 2018)
Use of waste concrete in tempered cement production was examined in this study. Waste concretes were used in limestone-tempered cement production. In tempered cement production, 5, 10, 15, 20 and 28% milled waste concrete ...
Examining the stream threshold approaches used in hydrologic analysis
(MDPI, 2018)
The stream threshold is a user-defined and important parameter that directly affects the drainage network and basin boundaries that would be obtained as a result of hydrological analysis. There have been several approaches ...
Determination of drying kinetics and quality parameters of grape pomace dried with a heat pump dryer
(Elsevier Ltd, 2018)
Pomace of Hamburg Muscat was dried at temperature of drying air 45 °C and different air velocity (1.5, 2.0 and 2.5 m/s) in open-loop heat pump (HP) and laboratory-type closed-loop dryer (as a control). In the HP dryer, it ...
Analysis of RTK positioning methods comparative study of single-baseline and network RTK
(Compass Publications Inc., 2018)
[No abstract available]
Application of iOS/Android based assessment and monitoring system for building inventory under seismic impact
(Union of Croatian Civil Engineers and Technicians, 2018)
The possibility of creating an "ID card" for each new and existing building in urban areas, based on transfer of necessary data into electronic format, is analysed in the paper. Local governments, public institutions, ...
Investigation on the accuracy of existing Qibla directions of the mosques from different periods: a case study in Çorum city, Turkey
(University of Osijek, 2018-12)
The main goal of this study is to introduce two different approaches (i.e. based on spherical trigonometric formula and using sun qibla time) that can be used to determine the qibla directions of the existing mosques were ...
An investigation of different Wi-Fi signal behaviours and their effects on indoor positioning accuracy
(Taylor and Francis Ltd, 2018)
In recent years, in addition to 2.4 GHz Wi-Fi signals, 5 GHz signals have been introduced making it possible to transmit data at both IEEE 802.11n and 802.11ac standards. Therefore, researchers have increasingly focused ...