Search for dissertations about: "D. Zhang"

Showing result 16 - 20 of 30 swedish dissertations containing the words D. Zhang.

2. 16. Robust Multimedia Communications over Packet Networks

   Author : Guoqiang Zhang; W. Bastiaan Kleijn; Vinay Vaishampayan; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Telecommunication; Telekommunikation;

   Abstract : Multimedia communications over packet networks, and in particular the voice over IP (VoIP) application, have become an integral part of society. However, the unreliable and heterogeneous nature of packet networks has led to a best-effort delivery of services. READ MORE

4. 17. MIMO Systems with Residual Hardware Impairments

   Author : Xinlin Zhang; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; training length.; residual hardware impairments; large-scale MIMO; Achievable rate; channel estimation; channel capacity; energy efficiency;

   Abstract : Recent years have witnessed an unprecedented explosion in mobile data traffic, due to the expansion of numerous types of wireless devices, which have enabled a plethora of data-hungry applications. Novel techniques, such as large-scale multiple-input multiple-output (MIMO) systems, represent potential candidates to support the ever-growing demands. READ MORE

5. 18. Numerical Study on Combustion Features of Gasified Biomass Gas

   Author : Xiaoxiang Zhang; Torsten Fransson; Jeevan Jayasuriya; Reza Fakhrai; Truls Liliedahl; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kinetic model; gasified biomass gas; premixed combustion; laminar flame speed; ignition delay time; Biotechnology; Bioteknologi; Energiteknik; Energy Technology;

   Abstract : There is a great interest to develop biomass combustion systems for industrial and utility applications. Improved biomass energy conversion systems are designed to provide better combustion efficiencies and environmental friendly conditions, as well as the fuel flexibility options in various applications. READ MORE

6. 19. VALUE CO-CREATION FOR SUSTAINABLE PRODUCT SERVICE SYSTEM DESIGN : OPPORTUNITY FOR GLOBAL MANUFACTURING COMPANIES

   Author : Yan Zhang; Tobias Larsson; Andreas Larsson; Kent R Johansson; Blekinge Tekniska Högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Product-Service System; Manufacturing company; Innovation Framework; PSS design; Value Co-creation; Case study; Maskinteknik; Mechanical Engineering; Maskinteknik; Mechanical Engineering;

   Abstract : There is a gradually spreading servitization trend that is forcing industrial manufacturing companies acting in the global market to rethink their business. Manufacturing companies that were traditionally perceived as product-centered, are today increasingly influenced by a service-oriented theory, which claims that manufacturing companies are driven to shift their business focus towards a strategy where customer-perceived value is in the spotlight, and where products are bundled with services to offer Product-Service Systems (PSS). READ MORE

7. 20. Spatial-Temporal Patterns of Urban Growth in Shanghai, China: Monitoring, Analysis, and Simulation

   Author : Qian Zhang; Yifang Ban; Jiyuan Liu; Bin Jiang; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; urban growth; spatial-temporal pattern; remote sensing; spatial metrics; scenarios-based simulation; Shanghai; Geoengineering; Geoteknik;

   Abstract : Supporting huge population, megacities are definitely the hot spots of production, consumption, and waste generation. Without careful investment and planning, megacities will be overwhelmed by burgeoning negative impacts on the environment, natural resources, and human health, as well as a host of social and economic issues. READ MORE