scholarly journals Online Optimization of Product-Form Networks

Author(s):  
Jaron Sanders ◽  
Sem Borst ◽  
Johan van Leeuwaarden
2003 ◽  
Author(s):  
Shi-Jian Luo ◽  
Ming-Xi Tang ◽  
Shang-Shang Zhu ◽  
John Hamilton Frazer ◽  
Shou-Qian Sun ◽  
...  

Author(s):  
A.I. Glushchenko ◽  
M.Yu. Serov

В статье рассматривается вопрос совершенствования системы управления параллельно-работающими насосными агрегатами с целью повышения энергоэффективности их работы. Проведено сравнение и выявление недостатков существующих методов решения рассматриваемой проблемы. Предложена идея нового подхода на базе онлайн оптимизации. The problem under consideration is improvement of the energy efficiency of a control system of parallel-running pump units. Known methods used to solve this problem are considered. Their advantages and disadvantages are shown. Finally, the idea of a new approach, which is based on online optimization, is proposed.


2016 ◽  
Vol 4 (2) ◽  
pp. 84-97
Author(s):  
Ravi Mokashi Punekar ◽  
◽  
Shiva Ji ◽  

The exchange of goods and materials by way of trading and exchanges were common in ancient times between India and China via silk route and other trading routes. The movement of people from one place to another brought exchange of not only materials but also techniques and processes and helped to establish their own manufacturing facilities and craftsmanship. This has resulted into a cross-cultural influence over the craft forms as reflected in many resemblances of material culture, annotations and apologies seen in various forms and shapes in multiple domains such as ceramic pottery, glazed pottery, metalware, ship buildings, printing, silk and other fabrics, patterns and motifs etc. Observations of ancient remains from Belitung and artifacts from Indian cities along secondary and tertiary Silk routes, show significant influence in the similarities in techniques, materials, surface treatments, kiln processes, colors, motifs , etc. This paper examines a cross-cultural resemblance of product form factor between Changsha pottery and pots to ceramic ware from eastern parts and metalware from western regions of India like Gujarat and Rajasthan. The spread of Buddhism from India to China and other eastern and south eastern countries during this period must also form a strong reason for this cultural exchange.


1994 ◽  
Vol 26 (02) ◽  
pp. 436-455 ◽  
Author(s):  
W. Henderson ◽  
B. S. Northcote ◽  
P. G. Taylor

It has recently been shown that networks of queues with state-dependent movement of negative customers, and with state-independent triggering of customer movement have product-form equilibrium distributions. Triggers and negative customers are entities which, when arriving to a queue, force a single customer to be routed through the network or leave the network respectively. They are ‘signals' which affect/control network behaviour. The provision of state-dependent intensities introduces queues other than single-server queues into the network. This paper considers networks with state-dependent intensities in which signals can be either a trigger or a batch of negative customers (the batch size being determined by an arbitrary probability distribution). It is shown that such networks still have a product-form equilibrium distribution. Natural methods for state space truncation and for the inclusion of multiple customer types in the network can be viewed as special cases of this state dependence. A further generalisation allows for the possibility of signals building up at nodes.


2020 ◽  
Vol 33 ◽  
pp. 3846-3853
Author(s):  
G. Prabhakar ◽  
S. Selvaperumal ◽  
P. Nedumal Pugazhenthi ◽  
K. Umamaheswari ◽  
P. Elamurugan

2021 ◽  
Vol 58 (2) ◽  
pp. 449-468
Author(s):  
Pascal Moyal ◽  
Ana Bušić ◽  
Jean Mairesse

AbstractWe consider a stochastic matching model with a general compatibility graph, as introduced by Mairesse and Moyal (2016). We show that the natural necessary condition of stability of the system is also sufficient for the natural ‘first-come, first-matched’ matching policy. To do so, we derive the stationary distribution under a remarkable product form, by using an original dynamic reversibility property related to that of Adan, Bušić, Mairesse, and Weiss (2018) for the bipartite matching model.


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