Sökning: "New Combinations"

Visar resultat 21 - 25 av 387 avhandlingar innehållade orden New Combinations.

1. 21. New methods for improving water management - Exploring the role of diatoms in ecosystems

   Författare :Bonnie Bailet; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Diatoms are photosynthetic microalgae which are well known to react quickly to environmental changes and are widely used as bioindicators within Water Framework Directive. However, diatom identification by light microscopy is time-consuming and error-prone, creating a need for alternative, faster and more reproducible methods for characterising diatom communities. LÄS MER

3. 22. Quality Assurance in Radiotherapy - Development and evaluation of new tools for improved patient safety

   Författare :Fredrik Nordström; Malmö Medicinsk strålningsfysik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; monitor unit verification; in vivo dosimetry; real-time verification; gel dosimetry; 4D dosimetry; IMRT; VMAT; data integrity; radiotherapy; Quality assurance;

   Sammanfattning : Preparation for radiotherapy is a complex procedure that involves many different technologies and groups of professionals. The rapid development and introduction of new technologies throughout the last decade have made it possible to deliver highly conformal, individually-shaped dose distributions with high accuracy. LÄS MER

4. 23. Perspectives of Aerodynamic Drag and Cooling Airflow for Heavy-Duty Trucks - Reconsidering European Total Length Legislation

   Författare :Helena Martini; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cooling airflow; CFD; under-hood design; soft nose; truck-trailer combinations; inlet duct; outlet duct; aerodynamic drag;

   Sammanfattning : Increasing fuel prices and constantly lowered emission legislation forces the vehicle industry to develop new methods for propelling vehicles and to optimize existing technology. Trucks constitute a significant proportion of the transportation system; consequently it is of great importance to ensure as low an impact as possible on the environment. LÄS MER

5. 24. Development of optimized radiation therapy using external electron and photon beams

   Författare :Mats Åsell; Henk Huizenga; Stockholms universitet; []
   Nyckelord :Target design; Collimator Scattered Radiation; Collimator Scatter Kernel; Treatment Planning; Radiation Therapy Optimization; Intensity Modulation; Energy Modulation; Beam Modality Combinations; medicinsk strålningsfysik; Medical Radiation Physics;

   Sammanfattning : The development of new intensity modulated radiation therapy (IMRT) techniques and treatment optimization tools makes it desirable to further improve modulation methods by using scanned photon and electron beams. It is shown that the narrowest possible photon beams have the potential to improve the flexibility in dose delivery, speed up the dose delivery and improve the treatment outcome. LÄS MER

7. 25. Essays on Smallholder Diversification, Industry Location, Debt Relief, and Disability and Utility

   Författare :Sven Tengstam; Göteborgs universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Zambia; agriculture; income diversification; structural change; poverty; global clothing industry; new economic geography; comparative advantages; industrial agglomeration; HIPC; debt relief; debt overhang; investment; incentives; disability; mobility impairment; marginal utility; hypothetical lotteries; risk.;

   Sammanfattning : Essay 1 Smallholder Income Diversification in Zambia: The Way Out of Poverty? This paper investigates the relationship between income diversification (combinations of farm income, agricultural wage work, non-agricultural wage work, and own-business income) and income within Zambian smallholder households. Shifting to a higher degree of diversification is found to be associated with getting higher income per laborer. LÄS MER