نتایج جستجو برای: material evaluation
تعداد نتایج: 1163396 فیلتر نتایج به سال:
The aim of this study was to test the null hypothesis that there is no difference in fluoride release between resin-modified glass ionomer cements (RMGICs) and composites in the long term. The materials were divided into 5 groups: a nonfluoride-releasing composite - Group TXT (Transbond XT), a fluoride-releasing composite - Group QC (Quick-Cure), and three RMGICs - Groups FOLC, FOB and MC (Fuji...
In the spring of 2009, when the leaders in Hillsborough County Public Schools (HCPS) in Tampa, FL embarked on an ambitious plan to change teacher evaluation, they knew the role and evaluations of school principals would also have to be transformed. The new teacher evaluation required principals to spend much more time in the classroom observing and analyzing instruction. But, the old principal’...
the aim of this paper is eliminating cr(vi) by natural hap. hap is a inexpensive material which is used from bovine critical bone ash in order to remove heavy metal ions like cr(vi). some experiments in different ph are performed (ph=2,3,7). maximum adsorption was appeared at ph=2, dosage=0.3 gr, c0=10 mg/l. cr(vi) removal depends on ph value and initial amount of cr(vi) result of experiments w...
In response to unsustainable timber production in tropical forest concessions, voluntary forest management certification programs such as the Forest Stewardship Council (FSC) have been introduced to improve environmental, social, and economic performance over existing management practices. However, despite the proliferation of forest certification over the past two decades, few studies have eva...
The ultimate goals of conducting disaster research are to obtain information to: (1) decrease risks that a hazard will produce a disaster; (2) decrease the mortality associated with disasters; (3) decrease the morbidity associated with disasters; and (4) enhance recovery of the affected community. And decrease the risks that a hazard will produce a disaster. Two principal, but inter-related, br...
Objective: To describe the development and validation of an educational hypermedia for undergraduates and nurses about the technique of physical examination in the prenatal period. Methods: A development study, conducted between June and October 2010, following these steps: developing content, production of media, organization of student-tutor space, design, delivery and validation of hypermedi...
A Performance-Based Earthquake Engineering (PBEE) assessment methodology is being used to study the impact of long-term material degradation on seismic performance of reinforced concrete bridges. The methodology, currently under development by the Pacific Earthquake Engineering Research Center, is being applied to an overpass with typical California highway details, and preliminary results are ...
The paper discusses the work carried out over the past decade within ISO TC59/SC8 and RILEM TC139-DBS committees towards the development of a durability test standard for sealants. In 2001, RILEM TC139-DBS published a RILEM Technical Recommendation (RTR) on a durability test method for curtain wall joint sealants. The paper discusses the development of this test method as well as results obtain...
Most research on the multimodal perception of material properties has investigated the perception of material properties of two modalities such as vision-touch, vision-audition, audition-touch, and vision-action. Here, we investigated whether the same affective classifications of materials can be found in three different modalities of vision, audition, and touch, using wood as the target object...
Keywords: Facilities design and planning Warehouse design Warehouse performance evaluation model Case studies Computational tools a b s t r a c t This paper presents a detailed survey of the research on warehouse design, performance evaluation, practical case studies, and computational support tools. This and an earlier survey on warehouse operation provide a comprehensive review of existing ac...
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