Book Reviews: Intelligent System Applications in Power Engineering: Evolutionary Programming and Neural Networks, Mathematical Modeling for Industry and Engineering, Microlithography: Science and Technology, Microlithography Fundamentals in Semiconductor Devices and Fabrication Technology, Introduction to Digital Mobile Communication, Theory of Nonuniform Waveguides: The Cross-Section Method

1999 ◽  
Vol 36 (3) ◽  
pp. 274-278
Author(s):  
Daniel Kirschen ◽  
Alistair Hookings ◽  
Henri Kemhadjian ◽  
Henri Kemhadjian ◽  
Z. Ghassemlooy ◽  
...  
1923 ◽  
Vol 79 (3) ◽  
pp. 439-444
Author(s):  
Helge Lundholm ◽  
James S. Plant ◽  
John C. Whitehorn

2017 ◽  
Vol 14 (2) ◽  
pp. 125
Author(s):  
Megawati Megawati ◽  
Sri Cahyo Wahyono ◽  
Fahruddin Fahruddin

Coal is a combustible sedimentary rock formed from organic deposits of plant residues and carbon, hydrogen and oxygen elements. Modeling of 3D coal distribution and coal volume calculation plays an important role in the exploration because the result of coal volume calculation can be used as consideration for mining. This research uses 6 drill point and calculation of coal volume using cross section method with the help of image processing software that is rockwork16. The result of interpretation of drill point data in the research area were 5 types of rock layers with each rock volume is claystone (25.840.000 m3), claysand (230.00 m3), Coal (5.930.000 m3), carbonaceus clay and soil.


2016 ◽  
Vol 33 (04) ◽  
pp. 1650024 ◽  
Author(s):  
Jong Hun Park ◽  
Jihee Jung ◽  
Janghyun Baek

In this study, we consider zone-based registration (ZBR) in mobile communication networks. In ZBR, when a mobile moves to a new zone, it registers its zone to the network database to keep the mobile’s current zone, and to connect an incoming call to the mobile when it is generated. A mobile can store one zone, or more than one zones. Among various types of ZBR, we focus on two-zone-based registration (TZR), which is known to have good performance. In TZR, a mobile can store two zones that it has recently registered, and does not register when it crosses either zone that it has already kept. In general, in TZR, a mobile registers its zone less often than in single-zone-based registration (SZR). However, TZR increases the paging cost, because the network may not know the exact zone where the mobile is. Mathematical modeling and performance analysis are performed to obtain the exact performance of SZR and TZR, by considering the busy-line effect and implicit registration effect of outgoing calls from a mobile. From numerical results for various circumstances, it is shown that TZR is superior to SZR in most cases.


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