117 research outputs found

    Traveling waves in one-dimensional nonlinear models of strain-limiting viscoelasticity

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    In this article we investigate traveling wave solutions of a nonlinear differential equation describing the behaviour of one-dimensional viscoelastic medium with implicit constitutive relations. We focus on a subclass of such models known as the strain-limiting models introduced by Rajagopal. To describe the response of viscoelastic solids we assume a nonlinear relationship among the linearized strain, the strain rate and the Cauchy stress. We then concentrate on traveling wave solutions that correspond to the heteroclinic connections between the two constant states. We establish conditions for the existence of such solutions, and find those solutions, explicitly, implicitly or numerically, for various forms of the nonlinear constitutive relation

    Rearing system effects on live weight gain of large white turkeys

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    The aim of this study was to determine the effect of three production systems on live weight gain (LWG) of white turkeys by repeated measures analysis of variance (ANOVA) and profile analysis. A total of 81 turkey poults were assigned to intensive (7 male and 19 female), semi-intensive (9 male and 19 female) and extensive groups (11 male and 16 female) at one day old. The poults were wing-banded at day 1 after hatching and weighed individually each week through 16 weeks old. The birds were managed similarly through eight weeks old. After that time, the intensive group was fed concentrated feed indoors. The birds of the semi-intensive group had access to pasture for eight hours a day, and received 50% of the concentrated feed that was consumed by the intensive group. The birds in the extensive group were kept outdoors with shade and grazed on pasture, but did not receive concentrated feed. The bi-weekly LWG of the extensive, intensive and semi-intensive groups were 1191.4 g, 990.6 g and 872.1 g, respectively. Through the 16 weeks of the trial, the effects on LWG of production system, age, and interaction of age and production system were highly significant (P <0.01) in the repeated measures ANOVA. The profile analysis also showed highly significant (P <0.01) production system effects and interaction of production system and age on LWG. Scheffe’s test indicated that the intensive, semi-intensive, and extensive treatments differed (P <0.05)

    Farm-Level Feed Demand in Turkey

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    Using farm-level survey data from Turkey, the authors provide estimates of the price responsiveness of feed demand beef, dairy, and sheep producers. In addition, the authors assess the impact of feed quality on animal yields in the Turkish dairy cattle sector

    Transferring business German course glossary in the vocational school in Turkey

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    Günümüzde yabancı dil derslerinde klasik ders modellerinin yanı sıra alternatif ders modellerinin de kullanılması dikkate alınması gereken bir olgudur. Yabancı dil öğretiminde yöntem çeşitliliği dilsel yeti ve becerilerin ediniminin hızlandırılmasına ve geliştirilmesine katkı sağlayabilir. Geleneksel ders modelleri, geçmişte ve günümüzde kabul gören bir olgu olmasına rağmen, alternatif ders modellerinin kullanımı ile, yabancı dil derslerinin başarılı bir şekilde şekillendirilmesi ve uygulanması sağlanabilir. Bu çalışmanın amacı, Turizm bölümlerinde öğrenim gören öğrencilere, turizm alanına ait olan mesleki terimlerin ve iletişim durumlarının alternatif alıştırmalar yardımıyla etkin aktarımını gerçekleştirmektir. Bu çalışmada turizm alanına ait olan mesleki terimlerin öğretimi teorik ve deneysel bağlamda incelenmiştir. Bu çalışmada deney ve kontrol grubu oluşturulmuş, ilgili kelime ve terimlerin aktarımı kontrol grubunda geleneksel alıştırmalarla, deney grubunda ise alternatif alıştırmalarla gerçekleştirilmiştir. Öğrencilere içerisinde turizm alanına ait kelimeler olan ön test ve son test uygulanmıştır. İstatiksel sonuçlar, deney grubunun son testte kontrol grubuna göre daha başarılı olduğunu göstermiştir. Bu sonuçlardan yola çıkarak, alternatif alıştırmaların kelime öğreniminde başarı getirdiği söylenilebilir. Bu sonuç dikkate alındığında başarılı bir öğrenme için öğrencilerin ilgi ve deneyimlerinin dikkate alındığı, farklı yöntemler ile yaratıcı bir biçimde şekillendirilen derslerin büyük öneme sahip olduğu söylenebilir. Bu sonuçtan yola çıkılarak Mesleki Almanca derslerinde kelime öğretiminde alternatif alıştırmalarla daha başarılı olduğu söylenilebilir.oday, the use of alternative lesson models in addition to classical lesson models in foreign language lessons is a phenomenon that should be taken into consideration. The variety of methods in foreign language teaching can contribute to the acceleration and development of linguistic competence and the acquisition of skills. Although traditional lesson models are an accepted phenomenon in the past and today, with the use of alternative lesson models, foreign language lessons can be successfully shaped and implemented. The aim of this study is to transfer the professional terms and communication situations belonging to the field of tourism to the students studying in Tourism departments with the help of alternative exercises. In this study, the teaching of professional terms belonging to the field of tourism was examined in a theoretical and experimental context. In this study, experimental and control groups were formed, and the transfer of the relevant words and terms was carried out with traditional exercises in the control group, and with alternative exercises in the experimental group. A pretest and a post-test, which are words related to tourism field, were applied to the students. Statistical results showed that the experimental group was more successful in the posttest than the control group. Based on these results, it can be said that alternative exercises bring success in vocabulary learning

    Deindustrialization in cities of the global south

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    Recent research by economists has shown that deindustrialization is more severe in Sub-Saharan Africa and Latin America than it ever was in the Organisation for Economic Co-operation and Development (OECD). Nevertheless, most research on deindustrialization is focused on the former centres of Fordist manufacturing in the industrial heartlands of the North Atlantic. In short, there is a mismatch between where deindustrialization is researched and where it is occurring, and the objective of this paper is to shift the geographical focus of research on deindustrialization to the Global South. Case studies from Argentina, India, Tanzania and Turkey demonstrate the variegated nature of deindustrialization beyond the North Atlantic. In the process, it is demonstrated that cities in the Global South can inform wider theoretical discussions on the impacts of deindustrialization at the urban scale

    Improving mathematical learning in Scotland’s Curriculum for Excellence through problem posing:An integrative review

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    The privatization of municipal services in Turkey : Adana case

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    Dodecyltrimethylammonium bromide ile hazırlanan ikili sistemlerin faz davranışı

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    Dodecyltrimethylammonium bromide (DTAB)/etil alkol ikili sisteminin faz davranışı incelenmiştir. Anizotropik textürleri karakterize etmek ve ısısal geçişleri teşhis etmek için optik polarize mikroskop kullanılmıştır. DTAB+etanol sistemindeki arafazlar, artan DTAB konsantrasyonu ile izleyen sırada belirlenmiştir: isotropik-hexagonallamellar. Bu sıvı kristallerin yapısal dönüşümü, diferansiyel tarama kalorimetresi ile doğrulanmıştır. Kırma indisinin sıcaklık ve kompozisyona bağlılığı için deneysel sonuçlar verilmiş ve tartışılmıştır

    Structural relations between cotton production and the textile industry in the Southeastern Anatolia Project (GAP) Region [Gap alaninda pamuk üretimi ve tekstil sanayii arasindaki yapisal i·lişkiler]

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    The structure and structural interdependent of the cotton and textile industries were analyzed using an input-output model in the Southeastern Anatolia Project (GAP) Region. GAP is the most comprehensive integrated regional development project ever carried out in Turkey. Data were obtained from surveys of 72 cotton farms and 103 textile companies. In the GAP Region, gross value added as a percentage of gross output was found to be 85 % for the cotton. 38 % for the readymade. 35% for the spinning 34 % for the weaving and 25 % for the ginning sectors. As an indicator of labour productivity, value added per work hours were also found by sector, in Turkish Lira to be 145.000 for ginning, 87.000 for weaving, 85,000 for spinning. 77,000 for ready-made and 20,000 for cotton in 1993. In the input-output framework, final demand, output multipliers of the sectors were: 1.7480 for the ginning. 1.6780 for the weaving. 1.6771 for the ready-made, 1.2728 for the spinning and 1.0171 for the cotton sectors. Employment multipliers were: 0.1912 for cotton, 0.1545 for ready-made. 0.1138 for spinning, 0.1124 for weaving. Income multiplers were: 0.8839 for the ginning. 0.8573 for the cotton. 0.6250 for the ready-made. 0.6014 for the weaving and 0.4840 for the spinning sectors. By the year 2010 which means total completion of GAP, 161.700 new jobs. 112.000 the in-cotton sector and the rest in the textile industry might be created. Total gross value added also might be 2.3 times higher than the base year 1993 in the cotton and textile industries in the region. In the future, substantial new investments which will generate production capacity are needed in the weaving and ready.made sectors of the textile industry, as is presently happening in the GAP Region
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