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We present a new, ohmic-heating based, thermal ionization cavity source for mass spectrometry. We employ independent control of ionization and evaporation to keep sample in the evaporator while increasing the temperature of the ionizer. The ‘cold end’ phenomenon is eliminated by using optimized blade-shaped connection electrode. We simulated the processes of ionization and transition in the ion source...
Large numbers of studies have shown that: through the information sharing between enterprises upstream and downstream of supply chain, enterprises can improve their customer service quality, shorten payment cycles and reduce labor costs, so as to effectively alleviate the "bullwhip effect". However, the above studies of the supply chain were generally set up an absolute controlor, and used...
This paper presents a new QoS multicast routing algorithm TPMA for MPLS-TE. The algorithm first modifies the evolution equation to improve standard PSO, and then utilizes TS technique to realize the balance of global and local search, further combines Fitness function to enhanced the global search ability, simultaneously considers other QoS parameters. The main objective of TPMA is to build a QoS...
In the MPLS-based mobile IPv6 network, when mobile node performs handover, it needs to rebuild label switching path, which impacts the handover delay and causes packets loss. Reused parts of the path overcome the above reasons, which propose a cross-router (CR) algorithm. It modifies the label information base (LIB), that is, increases two fields: the mobile node address and the time counter. When...
This paper studies the background and development trends of the network quality of service (QoS), and then researches the bandwidth broker and the differentiated services (DiffServ) network. A dynamic resource management algorithm is proposed to manage network resources, to improve the network available resources through setting up share resources pool to recycle bandwidth. It uses bandwidth broker...
In differentiated services (Diffserv) network, for the bandwidth broker waste problem of static resources management, a dynamic resource management (DRMA) algorithm was proposed to improve the efficiency of resource management. The algorithm introduced a logical share pool of resources, in order to recovery bandwidth resources that was not full used. The resource reservation request re-used recovery...
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