نتایج جستجو برای: ice

تعداد نتایج: 53535  

2007
ANTHONY J. Gow

Stable isotope analysis has been used successfully to distinguish between several different ice types in an ice tongue floating on sea water in Antarctica. At one critical location this technique has provided the only means of discriminating unambiguously between glacial ice and fresh-water ice formed from desalinated sea water. This part of the ice tongue is now underlain by a layer of desalte...

Journal: :Science 2003
John O Stone Gregory A Balco David E Sugden Marc W Caffee Louis C Sass Seth G Cowdery Christine Siddoway

Surface exposure ages of glacial deposits in the Ford Ranges of western Marie Byrd Land indicate continuous thinning of the West Antarctic Ice Sheet by more than 700 meters near the coast throughout the past 10,000 years. Deglaciation lagged the disappearance of ice sheets in the Northern Hemisphere by thousands of years and may still be under way. These results provide further evidence that pa...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
pages 37 - 47 m. bahramparvar m.h. haddad khodaparast a. mohammad-amini

stabilizers have been used to improve the texture of ice cream for several decades. they added it to ice cream to control ice and lactose crystal growth during hardening and storage, to give body and stiffness during freezing for air incorporation and to impart smoothness in body and texture. nowadays, most of the industrial stabilizers are provided from abroad, so, extraction, determination of...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2006
Antony J Payne Julian C R Hunt Duncan J Wingham

This brief paper has two purposes. First, we gauge developments in the study of the Antarctic ice sheet over the last seven years by comparing the contents of this issue with the volume produced from an American Geophysical Union meeting, held in September 1998, on the West Antarctic ice sheet. We focus on the uptake of satellite-based observation; ice-ocean interactions; ice streams as foci of...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2011
Paul Brocklehurst Alexander Korobkin Emilian I Părău

A linear three-dimensional problem of hydroelastic wave diffraction by a bottom-mounted circular cylinder is analysed. The fluid is of finite depth and is covered by an ice sheet, which is clamped to the cylinder surface. The ice stretches from the cylinder to infinity in all lateral directions. The hydroelastic behaviour of the ice sheet is described by linear elastic plate theory, and the flu...

روادگر, بهرام, فروهش تهرانی, هما, قاسمی, منیژه, نورانی وطنی, اعظم, میرزائی, مهدی, پوشنگ باقری, کامران, سالک مقدم, علیرضا ,

ABSTRACT The purpose of this study was to investigate the extend of bacterial contaminatim of ice blocks being used on daily basis in the community. In this study fifty samples of ice blocks from April to September 1999 were collected from different areas in the city of Tehran. Experiments were carrid out for the determination of total count of bacteria and the identification of pathog...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده کشاورزی و منابع طبیعی 1394

شته ی macrosiphum rosae l. یکی از مهم ترین آفات گل رز در ایران و سایر نقاط جهان محسوب می شود. تغییرات جمعیت این شته روی شش رقم گل رز به نام های ,josephine bruce ,piccadilly miniature ,ice berg ,blessing و fairyبا نمونه برداری های هفتگی از اواخر اسفند 1391 تا آخر اسفند 1393 مورد بررسی قرار گرفت. نتایج نشان داد که شته ی رز در طول فصل زراعی روی هر شش رقم دارای دو اوج جمعیتی در بهار و پاییز می ...

Journal: :international journal of nanoscience and nanotechnology 2013
sh. dolati a. fereidoon a. r. sabet

the influence of nanoclay on the impact damage resistance of glass fiber–epoxy composites has been investigated using high-velocity repeated ice impact tests. the incorporation of nanoclay into epoxy enhances the impact resistance of the composites. the impact of ice is a realistic scenario for composite structures such as aircraft fuselages, wing skins and fan blades and it is not a completely...

2016
Filiz Yangılar

BACKGROUND In the coming years, a nutraceutical food may provide both physical and mental benefits that are commonly attributed to the active components of the food. OBJECTIVE In this study, we determined the nutrient and mineral contents, sensory properties, and physical and chemical characteristics of ice creams manufactured using peach fibre at different concentrations (1 and 2%). METHOD...

2016
Brenda L. Hall Ethan R. Perry

Raised beach ridges on Livingston Island of the South Shetland Islands display variations in both quantity and source of ice rafted detritus (IRD) received over time. Whereas the modern beach exhibits little IRD, all of which is of local origin, the next highest beach (~250 14C yr BP) has large amounts, some of which comes from as far away as the Antarctic Peninsula. Significant quantities of I...

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