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Toplam kayıt 23, listelenen: 11-20
Fabrication and properties of dense ex situ magnesium diboride bulk material synthesized using spark plasma sintering
(IOP PUBLISHING LTD, DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND, 2009-09)
High density ex situ magnesium diboride bulks were synthesized from commercial MgB(2) powder using spark plasma sintering under a range of applied uniaxial pressures between 16 and 80 MPa. The microstructure was characterized ...
Exergetic Analysis of Using Oxygenated Fuels in Spark-Ignition (SI) Engines
(Energy & Fuels (ACS Publications), 2009)
In this study, the use of the oxygenated fuels in spark-ignition (SI) engines has been investigated by means of exergy analysis. For this purpose, a two-zone quasi-dimensional thermodynamic cycle model was used. The cycle ...
Investigation of the Effect of Dual Ignition on the Exhaust Emissions of an SI Engine Operating on Different Conditions by Using Quasi-dimensional Thermodynamic Cycle Model
(Strojarstvo (Croatian Union of Mechanical Engineers and Naval Architects), 2009)
In the presented study, the effects of using dual-spark plug and variation of the spark plug location on the exhaust emissions of an SI engine operating in different conditions were investigated theoretically. A quasi-dimensional ...
A New Method to Compensate for Counting Losses due to System Dead Time
(Nuclear Instruments and Methods in Physics Research A, 2009-05-21)
Determination of count losses and pile-up pulse effects in quantitative and qualitative analysis became a vital step in various analyses. Therefore, compensating for counting losses is of importance. These counting losses ...
Orman Amenajman Planlarının Simülasyon Tabanlı Planlanması: ETÇAPSimülasyon
(Kastamonu Üniversitesi, 2009)
Türkiye’de orman amenajman planlarının yapım süreci, çoğunlukla sezgisel yöntemler ve basit planlama teknikleri ile gerçekleştirilmektedir. Ancak, toplumun ormanlardan olan talebinin değişmesi ve artması, sürdürülebilir ...
NATURAL CONVECTION HEAT TRANSFER IN A PARTIALLY DIVIDED TRAPEZOIDAL ENCLOSURE
(THERMAL SCIENCE, 2009)
Nat u ral con vec tion heat trans fer in a par tially di vided trap e zoidal en clo sure is stud ied nu mer i cally us ing the con trol vol ume method. Sum mer and win ter con di - tions are sep a rately ex am ined by im ...
Precursory seismic quiescence before 1 May 2003 Bingöl (Turkey) earthquake: A statistical evaluation
(Journal of Applied Functional Analysis, 2009)
The variations of seismicity rate changes prior to the occurrence of 1 May 2003 Bingöl earthquake has been analyzed by statistical method, with the observation of pointing up precursory seismic sequence. We investigated ...
SINIR ŞARTLARININ KAPALI ORTAMLARDAKİ DOĞAL TAŞINIMLA ISI TRANSFERİ VE SICAKLIK DAĞILIMINA ETKİSİNİN SAYISAL ANALİZİ
(IX. Ulusal Tesisat Mühendisliği Kongresi TESKON, 2009)
Kapalı kare ortamlardaki doğal taşınım, ortamın düşey duvarlarından birine farklı sınır koşulu uygulanması durumu için sayısal olarak incelendi. İncelenen kapalı ortamın yatay duvarlarının yalıtılmış, düşey duvarlarından ...
Trabzon İli İçin Dış Ortam Sıcaklığının İç Ortamdaki Doğal Taşınımla Isı Transferine Etkisinin Sayısal Analizi
(17.Ulusal Isı Bilimi ve Tekniği Kongresi ULIBTK09, 2009-06-24)
Kapalı bir kare ortamda sıcaklık dağılımı ve buna bağlı olan doğal taşınım mekanizması sınır koşullarına oldukça duyarlıdır. Ortam içersindeki hız ve sıcaklık dağılımları iki önemli ısıl konfor parametresidir ve bu ...
Comparison of levitation force relative to thickness of disk shaped YBa2Cu3O7-x prepared by MPMG and FQMG processes
(ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND, 2009-11-20)
The precursor YBCO in the stoichiometric ratio of 1:23 were fabricated using the melt-powder-melt-growth (MPMG) technique, and flame-quench-melt-growth (FQMG) technique. The superconducting regions were determined by ...