Ara
Toplam kayıt 10, listelenen: 1-10
Investigation of irreversibilities in the compression process for alternative refrigerants in a vapor compression refrigeration cycle
(2008)
Irreversibility analyses during compression process are presented for some refrigerants namely, R290, R134a, R12, R22, and R152a in a vapor compression refrigeration cycle. The effects of evaporator temperature, condenser ...
Web tabanlı uzaktan eğitimde sıra, hız ve içerik kontrellerinin akademik başarıya etkisi
(Gazi Üniversitesi, 2008)
Bu araştırmada, web tabanlı uzaktan eğitim sistemlerinde öğrenenlere sunulan içerik, sıra ve hız kontrollerinin öğrenenin akademik başarısı üzerindeki etkilerinin belirlenmesi amaçlanmıştır. Araştırma, bu genel amaç ...
Kaynaklı birleştirmeli konstrüksiyonların çarpılma eğilimlerinin belirlenmesi için deneysel bir yaklaşım
(2008)
Bu çalışmada, kaynaklı birleştirmeli konstrüksiyonların imalat sürecinde ve sonrasında oluşan çarpılma eğilimlerinin, çarpılma kuvvetleri vasıtasıyla belirlenmesi amaçlanmıştır. Bu amaçla, rijit bir kafes hücre sistemi ve ...
Farklı sıcaklık kontrol sistemlerinin termoelektrik tıp kitinin performansına etkisi
(Gazi Üniversitesi Mühendislik - Mimarlık Fakültesi, 2008)
Kan, aşı, serum, ilaç v.b. tıbbi maddelerin bozulmadan saklanabilmesi için belirli sıcaklık koşullarında tutulması gerekmektedir. Bu amaca yönelik olarak geliştirilmiş olan Taşınabilir Termoelektrik Tıp Kiti hem birey hem ...
Acoustic analysis of a liquefied petroleum gas-fired pulse combustor
(2008)
Experimental investigation of acoustic characteristics of a Helmholtz type liquefied petroleum gas-fired pulse combustor is presented. In the experiments, the length of the tail pipe was changed from 1.9 m to 1.3 m by 10 ...
Experimental investigation of a cross-flow heat exchanger with wing-type vortex generators
(2008)
In this study, heat and fluid flow in a plate-fin heat exchanger with wing-type convergent-divergent longitudinal vortex generators (CDLVGs) were studied experimentally. A cross-flow plate-type heat exchanger was designed ...
Oxidative desulfurization of cayirhan lignites by permanganate solution
(2008)
Unless important developments record new and renewable energy sources, the role of fossil fuels as an energy resource goes on. It is possible to detect sulfur, heavy metals, and tracer elements such as arsenic and selenium ...
An elastic-plastic stress analysis steel-reinforced thermoplastic composite cantilever beam
(2008)
In the present study an analytical elastic-plastic stress analysis is carried out for a low-density homogeneous polyethylene thermoplastic cantilever beam reinforced by steel fibers. The beam is loaded by a constant single ...
Factors affecting the removal of aflatoxin M1 from food model by Lactobacillus and Bifidobacterium strains
(Taylor and Francis, 2008)
This paper describes the ability of six dairy strains of Lactobacillus and Bifidobacterium to remove aflatoxin M1 (AFM1) from phosphate-buffered saline (PBS) and reconstituted milk. Bacteria were incubated in both PBS and ...
Effect of the activator type and catalyst/activator ratio on physical and mechanical properties of cast PA-6
(2008)
The aim of the study is to produce suitable unfilled cast polyamide-6 composition exhibiting optimum mechanical, physical, thermal and electrical properties with anionic polymerization mechanism. Sodium lactamate was used ...