403 research outputs found
Thermal conductivity of granular food materials
No full textASME PDProceedings of the 1996 3rd Biennial Joint Conference on Engineering Systems Design and Analysis, ESDA. Part 7 (of 9) -- 1 July 1996 through 4 July 1996 -- Montpellier, Fr -- 46123In this study, the bulk thermal conductivity of Gediz 75, Ege 88 and Spanish varieties of Triticum durum wheat has been determined at ambient temperature by a modified hot wire method. The bulk thermal conductivities ranged from 0.129 to 0.3717 W/m.K for the moisture contents of the wheat samples ranging from 6.9 to 55 percent wet basis. The thermal conductivity of each variety of wheat increased linearly with moisture content. Various conduction models for granular porous systems are also considered and the experimental results are compared with the values calculated from the models. It has been found that the parallel model predicts best the value of the bulk thermal conductivity
On abelian group actions with TNI-centralizers
No full textGüloğlu, İsmail Şuayip (Dogus Author)A subgroup H of a group G is said to be a TNI-subgroup if for any Let A be an abelian group acting coprimely on the finite group G by automorphisms in such a way that for all is a solvable TNI-subgroup of G. We prove that G is a solvable group with Fitting length h(G) is at most . In particular whenever is nonnormal. Here, h(G) is the Fitting length of G and is the number of primes dividing A counted with multiplicities
Action of a frobenius-like group with kernel having central derived subgroup
No full textGüloğlu, İsmail Şuayip (Dogus Author)A finite group FH is said to be Frobenius-like if it has a nontrivial nilpotent normal subgroup F with a nontrivial complement H such that [F, h] = F for all nonidentity elements h is an element of H. Suppose that a finite group G admits a Frobenius-like group of auto-morphisms FH of coprime order with [F', H] = 1. In case where C-G( F) = 1 we prove that the groups G and C-G( H) have the same nilpotent length under certain additional assumptions
Frobenius groups of automorphisms with almost fixed point free kernel
No full textGüloğlu, İsmail Şuayip (Dogus Author)Let FH be a Frobenius group with kernel F and complement H, acting coprimely on the finite solvable group G by automorphisms. We prove that if C-G(H) is of Fitting length n then the index of the n-th Fitting subgroup F-n(G) in G is bounded in terms of vertical bar C-G(F)vertical bar and vertical bar F vertical bar. This generalizes a result of Khukhro and Makarenko [6] which handles the case n = 1
Changes of thermal diffusivity values of some meat products with temperature
No full textBu çalışmada bazı et ürünlerinin ısıl yayınganlık değerleri deneysel olarak belirlenmiştir. Örneklerin ısıl yayınganlıkları Dickerson yöntemi kullanılarak 25 °C ile 8O°C sıcaklık aralığında ölçülmüştür. Sonuçlar sıcaklığın fonksiyonu olarak değerlendirilmiştir. Tüm örneklerde ısıl yayınganlığın sıcaklıkla artış gösterdiği belirlenmiştir.In this study thermal diffusivities of some meat products are determined experimentally. Dickerson's Method was used for measurements between 25°C and 80°C. Statistical analysis of the results has shown that thermal diffusivity increases with temperature within the given temperature limits
David Bellos’ indirect translation of Ismail Kadare’s The file on H : a contextual analysis
No full textThis article is a linguistic study of David Bellos’ indirect translation of Ismail Kadare’s The File on H (1997), a novel first published in 1980-1981 in the Albanian literary review Nëntori, and translated into English on the basis of Jusuf Vrioni’s French version, Le Dossier H (1989). Also called "double", "mediated" or "second-hand", indirect translation is an understudied phenomenon, often criticised by scholars because of its greater distance to the original. Cay Dollerup (2000: 23), for example, argues that the grammatical structure of the mediating language (ML) obscures the distinctions made in the source language (SL), and that possible "mistakes" in the ML may be repeated in the target language (TL). Do fidelity and loyalty to the author become weakened in Bellos’ indirect translation? To what extent is such weakening discernible linguistically? And does this particular case of indirect translation reveal notable patterns or recurring types of linguistic shifts between ST and TT? Showing that some of the features specific to Kadare’s Albanian writing are tempered in the doubly-translated English text, yet highlighting that similar shifts occur in the three language directions involved, this article demonstrates that changes between ST and TT may occur in indirect translation regardless of the strategies adopted by MT – thus challenging the hypothesis that linguistic shifts in indirect translation follow a single or consistent pattern
Groups of automorphisms with TNI-centralizers
No full textGüloğlu, İsmail, Şuayip (Dogus Author)A subgroup H of a finite group G is called a TNI-subgroup if NG(H)∩Hg=1 for any g∈G\NG(H). Let A be a group acting on G by automorphisms where CG(A) is a TNI-subgroup of G. We prove that G is solvable if and only if CG(A) is solvable, and determine some bounds for the nilpotent length of G in terms of the nilpotent length of CG(A) under some additional assumptions. We also study the action of a Frobenius group FH of automorphisms on a group G if the set of fixed points CG(F) of the kernel F forms a TNI-subgroup, and obtain a bound for the nilpotent length of G in terms of the nilpotent lengths of CG(F) and CG(H)
On the influence of fixed point free nilpotent automorphism groups
No full textGüloğlu, İsmail Şuayip (Dogus Author)A finite group FH is said to be Frobenius-like if it has a nontrivial nilpotent normal subgroup F with a nontrivial complement H such that for all nonidentity elements . Let FH be a Frobenius-like group with complement H of prime order such that is of prime order. Suppose that FH acts on a finite group G by automorphisms where in such a way that In the present paper we prove that the Fitting series of coincides with the intersections of with the Fitting series of G, and the nilpotent length of G exceeds the nilpotent length of by at most one. As a corollary, we also prove that for any set of primes , the upper -series of coincides with the intersections of with the upper -series of G, and the - length of G exceeds the -length of by at most one
A numerical and experimental study on thermal conductivity of particle filled polymer composites
No full textIn this study, thermal conductivity of particle filled polymer composites is investigated numerically and experimentally. In the numerical study, the finite-element program ANSYS is used to calculate the thermal conductivity of the composite by using the results of the thermal analysis. Three-dimensional models are used to simulate the microstructure of composite materials for various filler concentrations at various ratios of thermal conductivities of filler to matrix material. The models used to simulate particle filled composite materials are cubes in a cube lattice array and spheres in a cube lattice array. A modified hot wire method is used to measure the thermal conductivity of the composites consisting of a high-density polyethylene (HDPE) matrix filled with tin particles up to 16% by volume. The experimentally measured thermal conductivities are compared with numerically calculated ones by using the spheres in cube model and also with the already existing theoretical and empirical models. At low particle content, up to 10% of volume content of tin filler, numerical estimation and all other models except for the Cheng and Vachon model, predict well the thermal conductivity of the composite. For more heavily filled composites there is an exponential increase in thermal conductivity and most of the models fail to predict thermal conductivity in this region
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