نتایج جستجو برای: reutilization

تعداد نتایج: 519  

Journal: :Applied sciences 2023

Evaluation of the impact new static-pressure pile penetration on used piles is vitally important for reutilization piles. The cavity expansion theory in semi-infinite soil adopted to obtain displacement field surrounding caused by penetration, and then applied based a two-stage method analyze deformation internal force pile. effects constraint conditions pile, rigidity modulus response are cons...

Journal: :Journal of physics 2021

Abstract Reuse of retired aircraft is an intuitive manifestation the effective combined development aviation industry and circular economy, which involves conversion passenger to cargo dismantling. In new era, it shows characteristics intensive technology capital. According operation scale China’s in recent years, with improvement scientific research technology, number fleets also growing conti...

Journal: :Construction and Building Materials 2021

Abstract Spent fluorescent lamps glass (SFLG) waste, manually and mechanically processed in a waste treatment plant, was used to partially replace up 50 wt% Portland cement (PC). Both types exhibited similar pozzolanic activity. The mortars containing 35 wt% SFLG met the specifications for other materials (e.g. fly ash) and, after 90 curing days, their compressive strength values were or higher...

2007
Alfredo F. Serpell José M. Rueda

The availability of a good, complete scope definition in the early stages of a project is widely recognized by industry practitioners as a key factor for overall project success. This paper presents a Project Scope Modeling Methodology for computerized decision support during the definition of a new project scope. The methodology is based on the effective reutilization of historical project sco...

Journal: :Cell 1995
Dawn E. Ouelle Frédérique Zindy Richard A. Ashmun Charles J. Sherr

The INK4a (MTS1, CDKN2) gene encodes an inhibitor (p16INK4a) of the cyclin D-dependent kinases CDK4 and CDK6 that blocks them from phosphorylating the retinoblastoma protein (pRB) and prevents exit from the G1 phase of the cell cycle. Deletions and mutations involving INK4a occur frequently in cancers, implying that p16INK4a, like pRB, suppresses tumor formation. An unrelated protein (p19ARF) a...

Journal: :The Journal of biological chemistry 1961
E W YAMADA

It has been reported that the capacity of rabbit bone marrow to carry out the synthesis de novo of purine ribonucleotides is quite low, and that this tissue requires preformed purine derivatives supplied by the liver (1, 2). Presumably, the salvage enzymes, including nucleoside phosphorylases (3),. participate in the reutilization of the preformed derivatives. So far, only pyrimidine nucleoside...

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