Search for dissertations about: "ttt"

Showing result 1 - 5 of 9 swedish dissertations containing the word ttt.

2. 1. Recovery of iron and manganese values from metallurgical slags by the oxidation route

   Author : Anna Semykina; Seshadri Seetharaman; Gabriella Tranell; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; oxidation; metallurgical slag; recycling; FeO; iron recovery; manganese recovery; manganese ferrite; nano-ferrites; oxidation process; TTT; crystallization; kinetics studies; thermodynamic studies; modelling; cold-model studies; electromagnetic buoyancy force; Metallurgical process engineering; Metallurgisk processteknik; Metallurgical process and manufacturing engineering; Metallurgisk process- och produktionsteknik; Materials science; Teknisk materialvetenskap;

   Abstract : In the modern practice, a sustainable development strategy in a domain of wasteutilization is shifting its focus from a general completeness of recycling to a morespecific attention to efficiently utilize elements in the wastes. This is well-illustrated bythe steelmaking slag industries. READ MORE

4. 2. Cost Effective Maintenance for Competitve Advantages

   Author : Imad Alsyouf; Basim Al-Najjar; Uday Kumar; Växjö universitet; []
   Keywords : Maintenance approaches; Maintenance Costs; Savings and Profit; Operations; Quality; Effectiveness; Efficiency; Competitiveness; Productivity; Value Advantages; Profitability; Performance; Balanced Scorecard BSC; Maintenance Selection Method; Fuzzy MCDM; TTT-plot; Cost Effective Maintenance; Mechanistic Model; Vibration Level Prediction; Condition-Based Maintenance; survey; case study; TECHNOLOGY; TEKNIKVETENSKAP; Maskinteknik; Mechanical Engineering;

   Abstract : This thesis describes the role of cost effective maintenance in achieving competitive advantages. It explores by means of a survey which maintenance practices are used, and how maintenance policies are selected in Swedish industries. READ MORE

5. 3. Transpupillary thermotherapy and photodynamic therapy for neovascular age-related macular degeneration

   Author : Anne Odergren; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ;

   Abstract : Age-related macular degeneration (AMD) is the leading cause of irreversible blindness among elderly in industrialized nations, and promises to extract an even greater toll with the imminent demographic shift. Neovascular AMD (wet AMD) often develops quickly and involves the growth of new blood vessels under the retina (choroidal neovascularization, CNV). READ MORE

6. 4. Contributions to the Industrial Use of Design of Experiments

   Author : Pia Sandvik Wiklund; Goh Thong Ngee; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : A great variety of statistical methods are important for facilitating the continuous improvement of customer-oriented processes and products, and Design of Experiments (DoE) has proven to be one efficient approach. The considerable industrial interest together with substantial research have revealed further possibilities of development in DoE to increase the attractiveness of the method. READ MORE

7. 5. On efficient use of censored data and covariate factors in survival analysis and maintenance scheduling

   Author : Ulf Westberg; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kvalitetsteknik; Quality Technology and Management;

   Abstract : This thesis deals with survival analysis and maintenance scheduling, two important issues to achieve efficient use of different production systems. In survival analysis of failure time data, the survival function and the cumulative hazard function are important reliability characteristics. READ MORE