نتایج جستجو برای: burned and unburned gasses

تعداد نتایج: 16827955  

Journal: :Jurnal Qua Teknika 2021

In the world of construction, concrete still plays an important role as main material used. This is because has several advantages such ease work, use solid waste substitution in industry not new. However, a substitute for aggregates been increasing recent years, promising solution to reduce inorganic waste. From tests carried out university tribhuwana laboratories, it shows that compressive st...

2017
Christopher R. Dolanc Hugh D. Safford James H. Thorne Solomon Z. Dobrowski CHRISTOPHER R. DOLANC HUGH D. SAFFORD JAMES H. THORNE SOLOMON Z. DOBROWSKI

Understanding the dynamics of forest structure aids inference regarding future forests and their distributions around the world. Over the last few decades, several papers have addressed changing forest structure in the Sierra Nevada, CA, USA, but these studies were limited in scope. We carried out a broad comparison of forest density and composition in the 1930s versus the 2000s for the west sl...

2017
Jesse L Morris Philip E Higuera Simon Haberle Cathy Whitlock

Pollen assemblages from 50 small hollows were used to resolve fire-caused vegetation patterns in a ~2-km2 subalpine landscape on the Central Plateau of Tasmania, Australia. Sites were characterized by varying abundance of the dominant tree species, Athrotaxis cupressoides, reflecting mortality from a wildfire that occurred 53 years prior to sampling. Sites were classified a priori based on fire...

Journal: :Annals of burns and fire disasters 2009
N D'Arpa L D'Amelio A Accardo-Palumbo D Pileri R Mogavero G Amato B Napoli G Alessandro C Lombardo F Conte

The body's immunological response to burn injury has been a subject of great inquiry in recent years. Burn injury disturbs the immune system, resulting in a progressive suppression of the immune response that is thought to contribute to the development of sepsis. Dendritic cells (DCs) are potent antigen-presenting cells that possess the ability to stimulate naïve T cells.DCs are derived from bo...

Journal: :The Science of the total environment 2006
Jeffrey J Whicker John E Pinder David D Breshears Craig F Eberhart

Ecosystem disturbances that remove vegetation and disturb surface soils are major causes of excessive soil erosion and can result in accelerated transport of soils contaminated with hazardous materials. Accelerated wind erosion in disturbed lands that are contaminated is of particular concern because of potential increased inhalation exposure, yet measurements regarding these relationships are ...

1999
CLENTON OWENSBY

Ungrazed tallgrass prairie plots in the Kansas Flint Hills have been burned annually at 4 different dates since 1928. Time of burning markedly altered the physiognomy and was the crucial factor effecting vegetation change. Late-spring burning, coinciding with emergence of the warm-season perennial grasses, increased grass production and favored Andropogon gerardii and Sorghastrum nutans. Burnin...

2017
Nira Alperson-Afil Daniel Richter Naama Goren-Inbar

This manuscript presents an attempt to evaluate the intensity of fire through spatial patterning and thermoluminescence methodology. Previous studies of Layer II-6 Level 2 at the Acheulian site of Gesher Benot Ya'aqov suggested that hominins differentiated their activities across space, including multiple activities around a hearth reconstructed on the basis of the distribution of burned flint ...

2006
Paul B. Drewa Debra P. C. Peters Kris M. Havstad

Relationships involving Wre and perennial grasses are controversial in Chihuahuan Desert grasslands of southern New Mexico, USA. Research suggests that Wre delays the resprouting of perennial grasses well after two growing seasons. However, such results are confounded by livestock grazing, soil erosion, and drought. Additionally, post-Wre grass responses may depend on initial clone size. We eva...

2014
Rachel Clark

A quantitative understanding of how forests work, both before and after (prescribed and wild) fi re, is essential to management. Yet acquiring the kind of broad yet detailed information needed for many management decisions can be costly, tedious, and time-consuming. After two sweeping wildfi res in the Missouri River Breaks area of eastern Montana—the Indian and Germaine wildfi res—some researc...

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