Sökning: "Sang Liu"

Hittade 4 avhandlingar innehållade orden Sang Liu.

1. 1. FOXP3 and CTLA-4 : how isoforms regulate immunological tolerance

   Författare :Sang Liu; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :;

   Sammanfattning : The maintenance of immunological tolerance is vital for preventing the immune system to damage normal tissues and physiological function of the body. CD4+FOXP3+ regulatory T (Treg) cells can suppress immune responses in a dominant manner and are essential for immunological tolerance. LÄS MER

3. 2. Virtual Full Replication for Scalable Distributed Real-Time Databases

   Författare :Gunnar Mathiason; Sten F. Andler; Sang H. Son; Hans Hansson; Alejandro Buchmann; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Scalability; Flexibility; Adaptiveness; Database Replication; Resource Management; Distributed Database; Real-time Database; Computer science; Datalogi; Information technology; Informationsteknik; Teknik;

   Sammanfattning : A fully replicated distributed real-time database provides high availability and predictable access times, independent of user location, since all the data is available at each node. However, full replication requires that all updates are replicated to every node, resulting in exponential growth of bandwidth and processing demands with the number of nodes and objects added. LÄS MER

4. 3. Optimistic Replication with Forward Conflict Resolution in Distributed Real-Time Databases

   Författare :Sanny Syberfeldt; Sten Andler; Jörgen Hansson; Sang H. Son; Alejandro Buchmann; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Distributed Systems; Real-Time Systems; Databases; Replication; Optimistic Protocol; Conflict Resolution; Computer science; Datalogi; Teknik;

   Sammanfattning : In this thesis a replication protocol - PRiDe - is presented, which supports optimistic replication in distributed real-time databases with deterministic detection and forward resolution of transaction conflicts. The protocol is designed to emphasize node autonomy, allowing individual applications to proceed without being affected by distributed operation. LÄS MER

5. 4. QoS Control of Real-Time Data Services under Uncertain Workload

   Författare :Mehdi Amirijoo; Jörgen Hansson; Sang Son; Svante Gunnarsson; Joseph Hellerstein; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; real-time system; database; feedback control; Computer science; Datavetenskap;

   Sammanfattning : Real-time systems comprise computers that must generate correct results in a timely manner. This involves a wide spectrum of computing systems found in our everyday life ranging from computers in rockets to our mobile phones. The criticality of producing timely results defines the different types of realtime systems. LÄS MER