Fouling is the accumulation of undesired particles on heat transfer surfaces which affects the heat transfer performance of a heat exchanger negatively. The accumulation of these particles prevents heat from being transformed through the heat exchangers by generating a fouling layer-like insulation. The main aim of the thesis is to investigate the machine learning algorithms to classify and predict the fouling status of PHE used in combi-boilers, to generate the background of the predictive maintenance, besides investigating the fouling effect on PHEs in terms of heat transfer and energy consu ...Daha fazlası
Photodynamic therapy (PDT) is a non-invasive therapy that induces photochemical reactions for treating many diseases including cancer using the advantages of light. It is based on the interaction of light at a specific wavelength and light-sensitive chemical which does not have dark toxicity. Thus, PDT is an anticancer therapeutic modality yielding cancer cell death. As with other anticancer therapies, some drawbacks reduce or limit the efficacy of PDT. To eliminate the disadvantages resulting in increased efficacy of PDT, it is combined with other anticancer treatment methods. Together use of ...Daha fazlası
Plasma is an ionized gas generated under an electric field that contains photons, free electrons, ions, free radicals, and reactive oxygen/nitrogen species (RONS). Cold atmospheric plasma (CAP) is generated in the cold form under a high electric field at atmospheric pressure. CAP is generated using two methods, Dielectric Barrier Discharge (DBD) and plasma jet. In the DBD method, the electrode configuration, shape, material, and substance from which the dielectric barrier is made are important. Beyond the electrode design and geometry, the barrier and electrode materials can also impact the re ...Daha fazlası
Artan dünya nüfusu beraberinde hammadde ihtiyacının artmasına sebep olmaktadır.
Bu nedenle, kullan-at kültürüne sahip doğrusal bir ekonomiden, atık plastiklerin
verimli bir şekilde yeniden kullanıldığı döngüsel bir ekonomiye geçiş zorunludur.
Döngüsel ekonomi kaynakların onarıcı kullanımı yoluyla israfı ortadan kaldırmayı
amaçlamaktadır.
Bu tezin amacı, Ti-6Al-4V atıklarının mekanik öğütme yöntemiyle toz haline
dönüştürülmesi, geri dönüştürülmüş Ti-6Al-4V tozlarının takviye malzemesi olarak
araştırılması, epoksi ve polyester kompozit özelliklerinin geliştirilmesine
dayanmaktadır. Bu te ...Daha fazlası
Websites are one of the most important components of the internet. We use web browsers every day to browse websites using the internet for searching for information, buying goods, reading news, following online lectures, interacting on social media, etc. When a website is opened, it contains many components that are too complex for an ordinary user to be aware of. By using third-party tracking cookies or pixels added for advertising or analytical purposes, ad networks can track the user on the web. As browser extensions that use filter lists became more successful at blocking cookies, follower ...Daha fazlası
Hand gesture-based systems are one of the most effective technological advances. Surface electromyography (sEMG) is utilized as a popular input data for gesture classification with elevated accuracy and advanced control capability. In this thesis, which is based on the classification performance of Hilbert-Huang spectrum (HHS) images obtained from Hilbert Huang Transform (HHT) of the sEMG of the gestures, an evaluation of the results of artificial intelligence (AI) methods on hand gesture classification using HHS image is presented.
At the core of our growing societies, energy supply stands as one of the major concerns today, and it will be an inevitable challenge for our near future. As the nations are looking to find solutions for the transition from fossil fuels – depleting at a high rate – to alternative energy sources, solar energy through PV cells is getting attention as an affordable and easily implemented option especially for power supply in commercial and residential buildings.
A colorimetric analysis is a technique that measures the properties of the substance using color changes in chemical or biochemical analysis. It is vital in analysing biological, medical, and environmental samples in many fields, such as the food, medicine, cosmetics, and paint industries. Colorimetric analysis requires correct measurement and calibration techniques to obtain accurate results.
This review examines the crucial role of physiotherapy and rehabilitation in the management of post-earthquake spinal cord injuries (SCI). After an earthquake, patients with SCI require specialized and intensive rehabilitation programs to promote recovery, prevent complications, and enhance their quality of life. This article reviews the pathophysiology of post-earthquake SCI, the various clinical and functional assessments used to evaluate severity, and the different treatment options available including pharmacotherapy, surgical interventions, and rehabilitation. This review discusses the ch ...Daha fazlası
Objective: Determining COVID-19 fear, healthy lifestyle behaviors, and affecting factors of faculty of health sciences students during the pandemic process, and investigating the relationship between COVID-19 fear and healthy lifestyle behaviors were aimed in the present study.
Materials and Methods: This cross-sectional study was carried out with the participation of 687 university students studying at the faculty of health sciences between December 2020 and February 2021. The data were obtained by online survey method using a structured information form, the Healthy Lifestyle Behaviors Sca ...Daha fazlası
Kolorimetrik analiz, biyomoleküllerin saptanmasında kullanılan ve çıplak gözle
gözlemlenen maddenin varlığını ve konsantrasyonunu belirlemek için renk
değişimlerini kullanılarak ölçülmesini sağlayan bir tekniktir. Sağlık, gıda, ilaç,
kozmetik ve boya endüstrileri gibi birçok farklı alanda biyolojik, tıbbi ve çevresel
numunelerin analizinde kolorimetrik analiz kullanılmaktadır. Bakım-noktası (POC)
testleri kullanım kolaylığı ve ulaşılabilirliği nedeniyle bir çok alanda kullanılmaktadır.
POC testlerinin kolorimetrik analiz ile entegrasyonu kullanım kolaylığını
arttırmaktadır. Kolorimetrik ...Daha fazlası
Al-Si döküm alaşımlarında bir güçlendirme mekanizması olarak uygulanan tane
inceltme işlemi, ağırlıklı olarak otomotiv endüstrisinde kullanılan A356 alaşımı söz
konusu olduğunda kritik bir öneme sahiptir. Ti-B içeren tane incelticilerin
kullanımının neden olduğu solma ve zehirlenme etkilerinin ardından, araştırmacılar
yeni bir tane inceltici bileşimi arayışına girmişlerdir. Son yıllarda detaylı olarak
çalışılan Nb-B içeren tane inceltici ana alaşımın olumlu etkilerinin görülmesi ancak bu
etkilerin kayda değer bir sonuç üretmemesi üzerine Nb-Ti-B üçlü bileşimi üzerinde
çalışmalar yapılmı ...Daha fazlası
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.