نتایج جستجو برای: workability
تعداد نتایج: 1616 فیلتر نتایج به سال:
OBJECTIVE To analyze the variables associated with fatigue perception and workability on workers working 12-hour fixed night and day shifts. METHODS A cross-sectional study was carried out. Forty-three workers, working 12-hour fixednight and day shifts in a textile factory, filled out questionnaires about fatigue, workability index, individual characteristics, life style and working condition...
The research investigates the effects of super plasticizer and molarity of sodium hydroxide alkaline solution on the workability, microstructure and compressive strength of self compacting geopolymer concrete (SCGC). SCGC is an improved way of concreting execution that does not require compaction and is made by complete elimination of ordinary Portland cement content. The parameters studied wer...
Growth of older population in United States requires multi-generational evaluation to characterize health measures for sustaining workability. Investigation of measures that working population would need and use with their work-life in an attempt to stay healthy and fit, could potentially reveal significant association that could extend workability and enhance work productivity such as performa...
This document is a review report on the paper ”Towards Proximity Pattern Mining in Large Graphs” by A. Khan, X. Yen, and K. Wu by Sigmod’s 2010 Repeatability and Workability Evaluation Committee. In this section the provided resources (code, data sets, setup information) and hardware setups of the authors and reviewers are discussed. Detailed information on all experiments that the review condu...
This document is a review report on the paper ”Efficient Parallel Set-Similarity Joins Using MapReduce” by R. Vernica, M. Carey, C. Li by Sigmod’s 2010 Repeatability and Workability Evaluation Committee. In this section the provided resources (code, data sets, setup information) and hardware setups of the authors and reviewers are discussed. Detailed information on all experiments that the revi...
In this paper, using sewage sludge carried out to manufacture high performance ceramsite. At the same time, the performance of concrete made from sewage sludge ceramsite was analyzed. The results show that the ceramist is mainly composed of cristobalite and mullet, and has dense enamel structure on surface and honeycomb closed fine porous structure in internal. Too large ceramsite size can caus...
This paper presents the results of an experimental research on the workability and compressive strength of self-compacting concrete. The work focused on concrete mixes having water/binder ratios of 0.35 and 0.45, which contained constant total binder contents of 500 kg/m and 400 kg/m, respectively. The concrete mixes contained four different dosages of a superplasticizer based on carboxylic wit...
AIMS To review current occupational health (OH) approaches aimed at maintaining the health and workability of older workers. METHODS A literature review was undertaken to identify articles on OH interventions focused on maintaining the health of older workers (published since 2000). The inclusion criteria included studies that reported interventions aimed specifically at older workers. RESU...
This paper presents a review of the properties of fresh concrete including workability, heat of hydration, setting time, bleeding, and reactivity by using mineral admixtures fly ash (FA), silica fume (SF), ground granulated blast furnace slag (GGBS), metakaolin (MK), and rice husk ash (RHA). Comparison of normal and high-strength concrete in which cement has been partially supplemented by miner...
Self-consolidating concrete (SCC) mixtures designated for precast, prestressed applications should be highly workable to flow easily through restricted spacing and completely encapsulate reinforcements without any mechanical vibration. Key workability characteristics of SCC can be described in terms of filling ability, passing ability, and resistance to segregation. These properties are typical...
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