ENERJİ VE ÇEVRE ETKİN BİNA TASARIMINDA ÖMÜR SÜRECİ ANALİZİ YÖNTEMİNİN DEĞERLENDİRİLMESİ

Bu çalışma, binaların ömür süreçlerinde enerji tüketimlerini ve oluşabilecek çevresel etkileri konu edinmektedir. “Ömür süreci analizi” yöntemiyle, bina ömür süreçlerinde enerji tüketimleri ve çevresel etkiler belirlenmiştir. Konya yerel ölçeğinde seçilen bir yapı adasındaki sosyal konutlar bu yöntemle analiz edilmiş ve aynı yapı adasında iyileştirilmiş bir proje geliştirilmiştir. Her iki projenin enerji tüketimleri ve meydana getirdikleri çevresel etkiler, bina ömür sürecinde belirlenen evreler kapsamında sayısal sonuçlar elde edilerek karşılaştırılmıştır. Mimari tasarım kararlarının, enerji tüketimi ve çevresel etkilerin oluşumuna etkileri somut olarak gösterilmiştir

TOPLU KONUT ALANLARINDA YAPILAŞMA YOĞUNLUKLARININ GÜNEŞLENMEYE GÖRE BELİRLENMESİ

The matter of this study is about the control of the insolation on housing settlements with solar envelope method. Analysis and improving studies was carried out using the method of solar envelope in two typical mass housing settlements selected in Konya. In the phase of analysis, the potential of making shade of buildings both in its own and towards the surrounding buildings located in the near environment were defined with buildings proportions exceeding volumetric limit of solar envelopes. Multiple alternative improvement proposals were developed with the systematic increase of the number of building and the organization of these buildings in the studied area. With this approach, different density values and morphological features were carried out. With taking into account the insolation, it was shown that it is possible to carry out various options in a definite flexibility from the point of view of building density, building story number and its morphological features in a given site. Bu  çalışma  konut  yerleşim  alanlarında  güneşlenmenin,  güneş  kabuğu  yöntemiyle  kontrol edilmesini konu edinmektedir. Konya kentinde mevcutta uygulanmış ve tip özellikte olan iki toplu konut alanında,  güneş kabuğu yöntemi kullanılarak analiz ve sağlıklaştırma çalışması yapılmıştır. Analiz aşamasında; binaların kendi içlerindeki ve yakın komşuluklarındaki binalara gölge oluşturma potansiyelleri, analiz amaçlı oluşturulan güneş kabuklarının hacimsel sınırlarını taşma oranlarına göre belirlenmiştir. Çok seçenekli alternatif sağlıklaştırma önerileri ise,  bina kütle sayısının sistematik artırımı ve bina kütlelerinin çalışma alanındaki düzenlemelerine göre geliştirilmiştir. Bu yaklaşımla, farklı yoğunluk değerleri ve biçimsel özellikler elde edilmiştir. Güneşlenme dikkate alınarak, belli bir esneklik içerisinde, bir alanda, yoğunluk, kat seviyesi ve biçimsel özellik açısından farklı düzenlemelerin gerçekleşebileceği gösterilmiştir.

Octagonal Shaped Metamaterial Absorber Based Energy Harvester

In this study, a novel octagonal shaped metamaterial based broadband absorber is proposed for energy harvesting at WIMAX wireless communication band. The proposal has an absorption of 99.97 % at 5.5 GHz with a bandwidth of 1 GHz between 5 GHz and 6 GHz in Transverse Electric (TE) mode. Transverse Electric (TE), Transverse Magnetic (TM) and Transverse Electromagnetic (TEM) modes are studied numerically in this paper. In TM and TEM modes, proposed structure has absorption of nearly 96 % and 98 % respectively at 6 GHz. The proposed structure is polarization angle independent which is important for energy harvesting applications. Energy harvesting application is realized by using resistive loads on the design, simulations are parametrically studied on resistive loads and experimental study is realized for reflection coefficient measurement and compared with simulated results. Both experimental and simulated results are complying with each other. The proposed structure has different usage areas in stealth areas, detection and imaging. DOI: http://dx.doi.org/10.5755/j01.ms.24.3.18625</p

A Special Purpose Operating System for Multiscale IoT Microservices

The Internet of Things (IoT) enables scalable and programmable physical sensing and actuation, however many of the computers involved in IoT deployments have a wide range of capability and resource constraints. For this reason, embedded systems technologies and practices have become the predominant programming model for IoT. However, IoT also relies on scalable technologies, such as cloud computing, to provide the resources (compute, networking, and storage) required by applications. The embedded systems programming model and technology ecosystem shares little with the models and approaches typically available in cloud computing settings.In this dissertation, we explore new research that unifies embedded systems and cloud programming, deployment, and execution for IoT applications. Our approach is based on microservices -- an architecture originally formulated to ease the development of cloud-based web services. We discuss how we can extend the microservice model to resource constrained microcontrollers so that an IoT application amalgamating devices and cloud resources consists only of portable software service components that use a common set of abstractions. We describe new abstractions, how they can be secured from attackers and eavesdroppers efficiently, and the design of an operating system supporting these abstractions to unify cloud servers and microcontrollers. We evaluate and demonstrate the flexibility, portability, and efficiency of our approach using end-to-end IoT applications and microbenchmarks. Our evaluation shows that this unique combination of advances achieves high performance and efficiency across all IoT tiers (sensors, network edge, and cloud) for the devices, systems, benchmarks, and applications that we study

Devices-as-services: Rethinking scalable service architectures for the internet of things

We investigate a new distributed services model and architecture for Internet of Things (IoT) applications. In particular, we observe that devices at the edge of the network, although resource constrained, are increasingly capable – performing actions (e.g. data analytics, decision support, actuation, control, etc.) in addition to event telemetry. Thus, such devices are better modeled as servers, which applications in the cloud compose for their functionality. We investigate the implications of this “flipped” IoT client-server model, for server discovery, authentication, and resource use. We find that by combining capability-based security with an edge-aware registry, this model can achieve fast response and energy efficiency.</p

The diagnostic utility of fibrosis-4 or nonalcoholic fatty liver disease fibrosis score combined with liver stiffness measurement by fibroscan in assessment of advanced liver fibrosis: a biopsy-proven nonalcoholic fatty liver disease study

Background/aim