Improving the performance of heat sinks is very important in development cooling systems. In this study, use a novel combination method [magnetic field impingement jet (MF-IJ)] to improve convective transfer coefficient designed sink numerically investigated. To model transfer, steady three-dimensional computational fluid dynamics (CFD) approach employed. Numerical results including velocity an...

Son yıllarda, Avrupa Gül Böceği, Cetonia aurata (Linné, 1761) (Coleoptera: Scarabaeidae)’nın meyve yetiştiriciliği yapılan alanlarda ekonomik düzeyde zarara neden olduğu sık rapor edilmiştir. Ülkemizde bu zararlıya karşı ruhsatlı bir insektisitin bulunmaması, üreticileri zor durumda bırakmaktadır. Bu çalışmada, elma alanlardan toplanan 2.dönem C. larvalarına Heterorhabditis bacteriophora‘nın bi...

Dedicated to Louis Nirenberg with admiration and friendship In this talk I describe some recent joint work with Louis. Please see [8] for details. Let D be a bounded domain in R n. For positive constants 0 < λ ≤ Λ < ∞, let A(λ, Λ) denote the class of measurable coefficients {A αβ ij (x)}, 1 ≤ α, β ≤ n, 1 ≤ i, j ≤ N, which satisfy |A αβ ij (x)| ≤ Λ ∀ α, β, i, j, and x ∈ D, (1) and D

1. A doomed-but-plausible trial calculation 2. Matrix exponentiation 3. Rotation-invariant derivatives on R 4. Instrinsic derivatives 5. Aside: GLn(R)-invariance of the Euler operator 6. ∑ i<j X 2 ij in coordinates on R 7. X` commutes with ∑ i<j X 2 ij 8. Stabilization of Hd by Xγ 9. Integration by parts for Xγ 10. Sup norms of derivatives of harmonic polynomials 11. Termwise differentiation of...

Value iteration is a commonly used and em­ pirically competitive method in solving many Markov decision process problems. However, it is known that value iteration has only pseudo­ polynomial complexity in general. We estab­ lish a somewhat surprising polynomial bound for value iteration on deterministic Markov decision (DMDP) problems. We show that the basic value iteration procedure converges...

By applying analyticity and single channel unitarity we derive a new formula which is useful to analyze the role of the left–hand singularities in hadron form factors and in the determination of the resonance parameters. Chiral perturbation theory is used to estimate the left–hand cut effects in ππ scattering processes. We find that in the IJ = 11 channel the left–hand cut effect is negligible ...