Fuzzy Clustering Neural Networks for Real-Time Odor Recognition System

The aim of this study is to develop a novel fuzzy clustering neural network (FCNN) algorithm as pattern classifiers for real-time odor recognition system. In this type of FCNN, the input neurons activations are derived through fuzzy c mean clustering of the input data, so that the neural system could deal with the statistics of the measurement error directly. Then the performance of FCNN network is compared with the other network which is well-known algorithm, named multilayer perceptron (MLP), for the same odor recognition system. Experimental results show that both FCNN and MLP provided high recognition probability in determining various learn categories of odors, however, the FCNN neural system has better ability to recognize odors more than the MLP network

UAV tracking module proposal based on a regulative comparison between manned and unmanned aviation

Purpose: The aim of this study is twofold. First is to compare manned and unmanned aviation regulations in the context of ICAO Annexes to identify potential deficiencies in the international UAV legislations. Second is to propose a UAV monitoring module work flow as a solution to identified deficiencies in the international UAV regulations. Design/methodology: In the present study, firstly the regulations used in manned aviation were summarized in the context of ICAO Annexes. Then along with an overview of the use of UAVs, international UAV regulations have been reviewed with a general perspective. In addition, a comparison was made on whether contents of ICAO Annexes find a place in common international UAV regulations in order to understand areas to be developed in the international UAV regulations, and to better understand the different principles between manned and unmanned air transport. In the last section, we present a UAV tracking module (UAVTram) in line with the above-mentioned comparison between manned and unmanned aviation and the identified deficiencies in the international UAV regulations. Findings: The international UAV regulations should be developed on the basis of airport airspace use, detection, liabilities, sanctions of violations, and updating of regulation. Proposed UAVTram has potential to offer real-time tracking and detection of UAVs as a solution to malicious use of UAVs. Research limitations/implications: Our study is not exempt from limitations. Firstly, we didn’t review all UAV regulations because it needs a considerable amount of efforts to check out all the UAV regulations pertinent to different areas of the world. It is the same case for manned aviation as we used only ICAO Annexes to contextually compare with UAV regulations. Practical implications: From the practical perspective, studies introducing new technologies such as systems that help detection of remote pilots causing trouble and agile defense systems will give valuable insights to remove individual UAV threats. Originality/value: We didn’t find any study aiming to compare manned and unmanned aviation rules in search of finding potential deficiencies in the UAV regulations. Our study adopts such an approach. Moreover, our solution proposal here uses Bluetooth 5.0 technology mounted on stationary transmitters which provides more effective range with higher data transfer. Another advantage is that this work is projected to be supported by Turkish civil aviation authority, DGCA. This may accelerate efforts to make required real-time tests.Peer Reviewe

A Novel Approach for Extraction of Polygon Regions

This paper presents a new algorithm to find out whether a polygon exists around a reference point given within the graphical domain. The algorithm is based on creating discrete line segments and then searching them using the orientations formed at segments intersections. The computational complexity of the searching algorithm has been determined as O( n2

Histopathologic investigation of the protective effects of omega-3 fatty acids against boric acid-induced injury in kidney and testis tissue

Objective: In this study, it was aimed to evaluate the effects of boric acid on rat kidney and testis tissues histopathologically. Secondly, the protective effects of omega-3 fatty acid against boric acid-induced renal and testicular toxicity were investigated. Methods: 32 wistar albino rats were divided into 4 groups as follows: Control, Omega-3 (400 mg/kg/day for 10 days), Boric acid (375 mg/kg/day for 10 days) and Boric acid+omega-3 (both drugs same dosage for same day). Kidney and testis tissues were evaluated using a scoring system based on the extent of certain histopathological changes. Results: In histopathological examination, boric acid caused significant degeneration in both testis and kidney tissues. Most evident findings were glomerular shrinkage and necrosis, hemorrhage and tubular cell degeneration in kidneys, and exfoliation of seminiferous tubule cells, detachement of epithelium from basement membrane, decreased cellularity and degeneration in epithelial cells in testis tissues. Omega-3 administration significantly attenuated these changes. Conclusion: To our literature search, this is the first study reporting protective effects of omega-3 fatty acid against boric-acid-induced testicular and renal injury

Investigation of starch additives in MDF manufacturing posibilities

YÖK Tez No: 461070Son yıllarda odun bazlı panellerin geniş kullanım alanları sayesinde, uygulama alanları giderek artmaktadır. Ancak kullanım alanlarındaki rutubet şartları, sıvıya ve su buharına karşı olan hassasiyetleri kullanım yerlerini sınırlandırmaktadır. Bu nedenle MDF kompozit malzemelerin üretiminde çeşitli katkı maddelerinin ilavesi ile bazı teknolojik özelliklerinin iyileştirilmesi ve yeni yöntemlerin geliştirilmesi piyasanın istek ve hedeflerine ışık tutmak AR-GE çalışmalarının en önemli amaçlarındandır. Starch'in kullanılması ile üretilen kompozit MDF levhalarda su alma, kalınlık artışı, yüzeye dik çekme mukavemeti ile formaldehit emisyon miktarlarının tespit edilmesine yönelik bir çalışma yapılmıştır. Bu çalışmada; katkı maddesi olarak nişasta içerikli ve ticari adıyla bilinen Glucidex (starch)' ın sırasıyla ÜF tutkal katı maddesine oranla % 0, % 3, % 5, % 8, % 11 ve % 15 katılarak üretilen orta yoğunluktaki MDF levhaların bazı teknolojik özellikleri, boyutsal stabilte ile formaldehit emisyonu özellikleri incelenmiş olup kontrol örnekleriyle karşılaştırılmıştır. Elde edilen testler sonucunda; Glucidex kullanılarak üretilen levhaların boyutsal stabilite sağladığını söylemek mümkün değildir. Nişaşta kullanım oranı arttıkça mekanik özelliklerde bir azalma meydana gelirken formaldehit emisyonu azalma eğilimi göstermiştir.In recent years wood based panels have found widely use area and because of this demand increased day by day. But placea of use moisture condition, liquid and vapor sensitivity effects using areas. Due to the fact that R&D researchs trying to enlight fiberboard composite materials production proces and add different additive improve some technological properties, find new way to development for market requirments. In this case changing of fiberboards properties with using Starch and examine boards exchanging water, increasing thickness, surface vertical tensile strenght and formaldehyde emission amount detection. In this study use as a additive Starch as known as commercial name Glucidex, adding ratio of UF glue sequentially 0%, 3%, 5%, 8%, 11% and 15% produced Medium Density Fiberboard's (MDF) different tecnological properties, dimentional stability and formaldehyde emission properties analysed and compare to control specimens. Achieving datas, using Glucidex produced boards dimentional stabilities are not changed. Increasing Starch use decrease mechanical properties and formaldehyde emission