نتایج جستجو برای: thermal needs

تعداد نتایج: 462014  

2009
Pedro Silva Sandra Silva Manuela Almeida Luís Bragança

The driving force of the thermal regulations revision in the European Union (EU) was the European Energy Performance of Buildings Directive – EPBD (European Commission, 2003). The main objectives of the EPBD are the harmonization of all thermal regulations in the EU and the optimization of buildings energy performance, taking into account the climatic conditions, interior comfort conditions of ...

2014
Lijun Wu Xiaoya Shi Qiang Li Yimei Zhu

The efficiency of thermoelectric materials is characterized by the dimensionless thermoelectric figure of merit, ZT = T/ρκ, where  is the Seebeck coefficient, ρ the electrical resistivity, T the temperature, and к the total thermal conductivity. To achieve high ZT, one needs to maximize the power factor /ρ, whereas minimize thermal conductivity к. The unfilled skutterudites have a high power...

2011
Ing Widya Richard Bults Rene de Wijk Ben Loke Nicole J. J. P. Koenderink Ricardo Batista Val Jones Hermie Hermens

[Context and Motivation] Development of innovative ICT-based applications is a complex process involving collaboration of all relevant disciplines. This complexity arises due to differences in terminology, knowledge and often also the ways of working between developers in the disciplines involved. [Question/problem] Advances in each discipline bring a rich design environment of theories, models...

Journal: :international journal of energy and environmental engineering 2011
marco gambini michela vellini

hydrogen technology is becoming ever more relevant because hydrogen use can help containinggreenhouse gas emission if co2 capture and storage techniques are implemented in the hydrogen productiontechnology (when hydrogen is produced from fossil fuels). for this reason this work aims at carryingout a comparative analysis of possible energy scenarios in urban districts: a medium-small italian cit...

Journal: :The Review of scientific instruments 2013
Jun Liu Jie Zhu Miao Tian Xiaokun Gu Aaron Schmidt Ronggui Yang

The increasing interest in the extraordinary thermal properties of nanostructures has led to the development of various measurement techniques. Transient thermoreflectance method has emerged as a reliable measurement technique for thermal conductivity of thin films. In this method, the determination of thermal conductivity usually relies much on the accuracy of heat capacity input. For new nano...

Journal: :Poultry science 2008
S Mutaf N Seber Kahraman M Z Firat

This study investigated the efficacy of surface wetting at different thermal conditions on core body, head, and dorsal surface temperatures in laying hens. Hens were sprinkled on the head and dorsal surface by releasing a sprinkling dosage of 10 mL.bird(-1). The first measurement was taken presprinkling, and the second was taken immediately postsprinkling and then repeated every 5 min for 20 mi...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان - دانشکده علوم پایه 1390

در حال حاضر رنگدانه های گروه آزو یکی از بزرگترین گروه رنگدانه های مصرفی در صنعت نساجی هستند. روش هایی که برای تصفی? فاضلاب ها مورد استفاده قرار می گیرند، همانند سیستم-های تصفی? اولیه و ثانویه، در حذف رنگدانه ها و معرف ها ناموفق عمل می نمایند. برای مثال فرآیندهای جذب و انعقاد مواد شیمیایی دو روش بکار رفته در تصفیه فاضلاب هستند. اما این روش ها صرفاً رنگدانه ها را از فاز مایع به فاز جامد انتقال می ...

2009
Albert Weckenmann Teresa Werner

− Measurement results provide important information about the measured objects. In industrial application, this is used to inspect products and control processes. To enable reliable statements based on the measurement results, all concerned employees need sufficient competences to fulfil their specific tasks, e.g. a correct execution of the measurement task, but also a proper interpretation of ...

1994
Kathleen McKeown Karen Kukich James Shaw

PLANDoc, a system under joint development by Columbia and Bellcore, documents the activity of planning engineers as they study telephone routes. It takes as input a trace of the engineer’s interaction with a network planning tool and produces 1-2 page summary. In this paper, we describe the user needs analysis we performed and how it influenced the development of PLANDoc. In particular, we show...

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