An amendment to this paper has been published and can be accessed via a link at the top of the paper. References Darwin, C. On The Origin of Species by Means of Natural Selection, or Preservation of Favoured Races in the Struggle for Life (J. Murray, 1859). Darwin, C. The Descent ...
摘要: PROBLEM TO BE SOLVED: To provide a safety aggregate having strength from inorganic waste, and to effectively use burned ash of general waste to the safety alternative of sand.收藏 引用 批量引用 报错 分享 文库来源 求助全文 ALTERNATIVE OF SAND USING BURNED ASH AS PRIME MATE 优质文献 ...
On one side it helps in reducing the sand demand and on another other side provides eco-friendly method for waste disposal. Different researchers have investigated the feasibility of using industrial wastes as replacement to natural sand in mortar, termed as "Alternative Sand". This paper first ...
Temporary loss of a sexual signal (claw loss) affects the frequency of sand structure construction in the fiddler crab, Uca lactea Clawless and small males may invest little in current reproduction and instead allocate energy to claw regeneration or body growth for future reproduction, or invest ...
This was believed to explain a recurrently observed "shrinking" of average male size starting during the fall of the first year of life. We investigated an alternative hypothesis according to which this species is a protandric hermaphorodite, and disappearance of large males from the population ...
potential alternative to pine bark is the use of biofuel or biomass crops that can be grown locally, harvested, and processed into a suitable substrate... J Altland 被引量: 19发表: 2010年 Growth of 'Fireworks' gomphrena grown in substrates amended with biochar Biochar obtained from flash pyrol...
It is indeed an irony of history that modern emphasis upon the good things of this life, our obsession with the idea of progress, and our worship of science have brought us to a point where the continued life of individuals and of society is more uncertain than ever before. The only ...
In this study, the main concern is to find an alternative of sand. Substitution of normal sand by stone powder will serve both solid waste minimization and waste recovery. The study focuses to determine the relative performance of concrete by using powder sand. From laboratory experiments, it ...
The concept of simultaneous analysis and design (SAND) is revisited with two objectives in mind: 1) to study and evaluate three alternative formulations for structural optimization using trusses as examples and 2) to implement the formul... W Qian,JS Arora - 《Aiaa Journal》 被引量: 27发表...
摘要: Presents a study which provide evidence that early females in the temperate, eusocial paper wasp Polistes fuscatus disperse as future nest foundresses instead of staying and helping at their natal nests. Methodology; Determinants of early nest tenure; Results....