Sökning: "contact system"

Visar resultat 16 - 20 av 815 avhandlingar innehållade orden contact system.

1. 16. Synthesis, Characterization, and Evaluation of Ag-based Electrical Contact Materials

   Författare :Fang Mao; Ulf Jansson; Mikael Olsson; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electrical contact; bulk; coating; Ag-based alloys; Ag-based delafossite; AgI; graphene; graphene oxide; combinatorial material science; dc magnetron sputtering; friction; wear; hardness; contact resistance;

   Sammanfattning : Ag is a widely used electrical contact material due to its excellent electrical properties. The problems with Ag are that it is soft and has poor tribological properties (high friction and wear in Ag/Ag sliding contacts). LÄS MER

3. 17. Language contact and structural change : An Old Finnish case study

   Författare :Merlijn De Smit; Erling Wande; Kaisa Häkkinen; Raimo Anttila; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Finnish; historical linguistics; language contact; Whitehead; Finnish language; Finska språket;

   Sammanfattning : The object of this study is to shed new light on both the influence exerted on Finnish by the Swedish language, and on the mechanisms by which language contact in structural domains takes place. It is argued that syntactic borrowing should be regarded as a subtype of reanalysis and extension rather than as an independent mechanism. LÄS MER

4. 18. Artificial Intelligence for Non-Contact-Based Driver Health Monitoring

   Författare :Hamidur Rahman; Mobyen Uddin Ahmed; Shahina Begum; Peter Funk; Hasan Fleyeh; Mälardalens högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Driver Monitoring; Artificial Intelligence; Machine Learning; Deep Learning; Computer Science; datavetenskap;

   Sammanfattning : In clinical situations, a patient’s physical state is often monitored by sensors attached to the patient, and medical staff are alerted if the patient’s status changes in an undesirable or life-threatening direction. However, in unsupervised situations, such as when driving a vehicle, connecting sensors to the driver is often troublesome and wired sensors may not produce sufficient quality due to factors such as movement and electrical disturbance. LÄS MER

5. 19. Dynamiskt belastade tribologiska system under plastisk formning, del II --- analyserade genom akustisk emission

   Författare :Thomas Skåre; Industriell Produktion; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vibration and acoustic engineering; vacuum technology; hydraulics; Mechanical engineering; supervision; wear; waves; vibrations; tribology; surfaces; stick-slip; sliding; sheet metal; quality check; plastic forming; monitoring; galling; machining; deep drawing; friction; cracking; contact surfaces; Acoustic emission AE ; contact pressure; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik; Material technology; Materiallära; materialteknik; Production technology; Produktionsteknik;

   Sammanfattning : The dynamic friction process and contact surface between tool and working material in a plastic forming process is hard to describe in mathematical form and hard to monitor and control in real time. High production speed and highly optimised forming operations result in great demands on the control equipment. LÄS MER

7. 20. An Intelligent Non-Contact based Approach for Monitoring Driver’s Cognitive Load

   Författare :Hamidur Rahman; Shahina Begum; Mobyen Uddin Ahmed; Peter Funk; Jerker Westin; Mälardalens högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer Science; datavetenskap;

   Sammanfattning : The modern cars have been equipped with advanced technical features to help make driving faster, safer and comfortable. However, to enhance transport security i.e. to avoid unexpected traffic accidents it is necessary to consider a vehicle driver as a part of the environment and need to monitor driver’s health and mental state. LÄS MER