Search

In this paper, a singular-feed circularly polarized (CP) metasurface antenna with broad impedance bandwidth is presented. The antenna consists of modified slots with a lattice of 3 × 3 square conductive patches. Modes are selected and excited by modified slot …

Chronically, the Nigerian pharmaceutical arena has witnessed a series of scandals, perhaps unprecedented level of unethical behaviors, cruelty or of a kind. These events have seriously shaken people’s belief. In general, such activities have left a black-hole …

Korku, insanın kendi düşüncelerinden kaynaklanan bir duygudur. İnsanoğlunun beklenmedik ve öngörülmeyen bir durum karşısında zihninin yoğunlaşmasını sağlayan bir mekanizmadır. Bu duygunun ortaya çıkmasının nedeni, tehlike düşüncesinin uyandırdığı duygusal reak…

Design and usage of Unmanned Aerial Vehicles (UAV) especially for military purposes has been rapidly increasing in recent years due to their capability to endure long flight durations without needing a crew and due to their low cost compared with the conventio…

Schiff bases are used as starting materials in the synthesis of important drugs, such as antibiotics, antiphlogistic, antiallergic and antitumor substances. On the industrial scale, Schiff bases have a wide range of applications, such as dyes and pigments. The…

The design of experiments is a highly effective offline quality improvement method to optimize the existing and new processes or products. In the literature, standard experimental situations have been paid a lot of attention. In a number of non-standard experi…

In the phases of hydrological model calibration, the impact of control parameters of optimization algorithms on the related fitness (cost) function (reaching the global solution correctly and expeditiously) is rather essential. These control parameters’ dynami…

Geriye dönük adım akışı, ısı depolama kaplarının iç ve dış akışında veya güç dönüştürme sistemlerinin toplayıcıları gibi birçok cihazda önemli olup akışın karmaşık yapısı nedeniyle önemli geometrik modellerden biri olarak göze çarpmaktadır. Bu çalışmada, dikey…

In this study, the effects nano-SiO2 and nano-Al2O3 on cement mortars were experimentally studied. The percentage of nano-powders were used as 1%, 3% and 5% into the material. Different types of analysis were used to nano-powder’s impact on the cement mortars.…

Nowadays, nature-inspired structural colorization takes increasing attention due to its exceptional optical properties. One-dimensional (1-D) photonic crystals are new kind of optical materials which can be used to obtain structural colorization. In recent yea…

Anti-thyroid drugs are relatively simple molecules known as thionamides, which contain a sulfhydryl group and a thiourea moiety within a heterocyclic structure [1]. Methimazole (1-methyl-2-mercaptoimidazole) is widely used drug in medicine for treatment of hyp…

The paper is deals with Glass Structures, used as a component of nonlinear shaping architectural forms in historical urban environment. These forms are treated as a city-event per analogies to Bernard Tschumi's theory of „event cities”. In this theory, the ess…

This paper presents the theoretical aspect of the creep behavior in materials, particularly in metallic materials. Different creep mechanisms were displayed. The main models developed to determine or extrapolate the rupture time of materials were presented. So…

Tüm dünyada özellikle de kent merkezlerinde yaşayan insan nüfusu her geçen gün artmaktadır. Nüfus artışına bağlı olarak sosyal, ekonomik ve çevre sorunlarını da her geçen gün artmaktadır. Günümüzde kent merkezlerinde görülen en önemli çevre sorunlarından biri …

This research focuses on determining the effects of indoor plants on customers' decision to enter the cafe. To test the assumption that there are relationships between the cafes where the interiors are used and the customers' entrance decisions, a study was or…

As a user, the human expects that the space should be designed to meet its own needs and to satisfy its goals. For this reason, designers should determine the changing uses and preferences of many different groups. Generation is the name of the group formed by…

Yaşamlarını doğuştan ya da sonradan, kalıcı ya da geçici engelli olarak geçirmeye mecbur kalan insanların yaşamlarını toplum ile bütünleşik ve dışlanma duygusu hissetmeden geçirmeleri esastır. Dolayısıyla tüm hizmetlerin, insanların fiziksel hareket kabiliyetl…

Micro-strip patch antenna has penetrated deep in the market due to its advantages. After studying micro patch antennas, there are some draw backs of it. One of the drawbacks includes the narrowband performance. The primary reason for this is its resonant natur…

As the diversity of land and climate conditions in Azerbaijan is practical for the cultivation of a number of agricultural plants it also provides wide opportunities for the reproduction of pests in such areas. During the mass reproduction such pests cause sub…

Bu çalışmada yüksek aşınma direncine sahip Hardox 500 ve Hardox 600 çeliklerinin abrasiv aşınma dirençleri incelenmiştir. Her iki malzemeden 10 mm çapında ve 25 mm uzunluğunda numuneler hazırlanmıştır. Bu numunelerin aşınma davranışları pin-on disk test cihazı…