Sökning: "network effect"

Visar resultat 21 - 25 av 701 avhandlingar innehållade orden network effect.

1. 21. Efficient Integration of Distributed Generation in Electricity Distribution Networks - Voltage Control and Network Design

   Författare :Ingmar Leisse; Industriell elektroteknik och automation; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Coordinated Voltage Control; Distributed Generation; Electricity meter; PV; Wind Power; Distribution Network;

   Sammanfattning : Distributed generation (DG), i.e. generation connected to the low and medium voltage distribution network (DN), has been increasing a lot during recent years. Thus the traditional assumption of a unidirectional power flow and a voltage decrease along the distribution feeders is no longer valid in all operation conditions. LÄS MER

3. 22. Quantum Optics with Propagating Microwaves in Superconducting Circuits

   Författare :Io Chun Hoi; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; transmon; second-order correlation function; qubit; microwave photons; photon router; superconducting artificial atom; Autler-Townes splitting; quantum network; SQUID; superconducting circuits; cross-Kerr effect; antibunching; Mollow triplet; Josephson junction; quantum optics;

   Sammanfattning : We address recent advances in quantum optics with propagating microwavesin superconducting circuits. This research field exploits on the fact that the coupling between a superconducting artificial atom and propagating microwave photons in a one-dimensional (1D) open transmission line can be made strong enough to observe quantum effects, without using any cavity to confine the microwave photons. LÄS MER

4. 23. The effect of wood properties on oxidative isolation of cellulose nanofibrils and characterization of networks

   Författare :Simon Jonasson; Kristiina Oksman; Lars Wågberg; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cellulose nanofibrils; wood; TEMPO-oxidation; nanofibril network; lignin; tension wood; transgenic tree; Trä och bionanokompositer; Wood and Bionanocomposites;

   Sammanfattning : Wood is a natural resource that has been an integral part of society for as long as humans have been on Earth. From serving as fuel for fire and construction material the applications of wood has been developed in modern times and only surged as a consequence of societal strive for sustainability and usage of green resources. LÄS MER

5. 24. Social network, perceived ill health and use of an emergency department : a descriptive and experimental study

   Författare :Kjerstin Genell Andrén; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :social network;

   Sammanfattning : The contents of this thesis are focused on relationships between social inte­gration, social network and social support, on the one hand, and perceived ill health and care utilization on the other. The aims of the thesis were to: investigate the relationship between social network, perceived ill health and utilization of an emergency department (ED); relate the frequency of ED use to socio-demographic risk indicators for social disintegration; describe the psycho-social and medical situation of a group of heavy users of ED services In comparison to the general population; relate changes in social network in a group of heavy users to utilization of ED; eval­uate the effects of hospital social worker intervention for heavy users of ED. LÄS MER

7. 25. As-cast AZ91D Magnesium Alloy Properties- Effect of Microstructure and Temperature

   Författare :Hoda Dini; Anders Jarfors; Nils-Eric Andersson; Uta Klement; Jönköping University; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Magnesium alloys; As-cast; AZ91D; Mechanical properties; Microstructural scale effect; Physical modelling;

   Sammanfattning : Magnesium and magnesium alloys are used in a wide variety of structural applications including automotive, aerospace, hand tools and electronic industries thanks to their light weight, high specific strength, adequate corrosion resistance and good castability. Al and Zn are the primary alloying elements in commercial Mg alloys and commonly used in automotive industries. LÄS MER