- TITLE:
PLANNING OF CELLULAR RADIO COVERAGE BASED ON SIMULATION RESEARCH
- AUTHOR(S):
D. Koleva
- ABSTRACT:
The paper summarizes the basic steps in the design of a GSM network. It is considered a hypothetical design using EDX-Signal Pro software. In choosing an area from the digital map generated by the software. Carry out a study of traffic patterns, demography and the land surface suitability in a given area in order to select the number and location of base stations. The network parameters are entered into the software package, generating a visual results exhibit. Demonstrate the advantages of computer-aided design using software such as EDX- Signal Pro, which include greatly reduced cost and time spent on the design process.
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PLANNING OF CELLULAR RADIO COVERAGE BASED ON SIMULATION RESEARCH
- TITLE:
PLANNING OF CELLULAR RADIO COVERAGE BASED ON SIMULATION RESEARCH
- AUTHOR(S):
D. Koleva
- ABSTRACT:
The paper summarizes the basic steps in the design of a GSM network. It is considered a hypothetical design using EDX-Signal Pro software. In choosing an area from the digital map generated by the software. Carry out a study of traffic patterns, demography and the land surface suitability in a given area in order to select the number and location of base stations. The network parameters are entered into the software package, generating a visual results exhibit. Demonstrate the advantages of computer-aided design using software such as EDX- Signal Pro, which include greatly reduced cost and time spent on the design process.
- DOWNLOAD:
PLANNING OF CELLULAR RADIO COVERAGE BASED ON SIMULATION RESEARCH
- TITLE:
ONE-OPERATIONAL TWO - STAGE TECHNOLOGY FOR FINISHING OF HOLES IN ALUMINUM ALLOY 2024-Т3 PART 2: MICRO-HARDNESS AND MICRO-STRUCTURE
- AUTHOR(S):
I. M. Amudjev
- ABSTRACT:
The article presents the outcomes for the roughness and micro-hardness obtained the finishing of holes in aluminum alloy 2024-Т3 using one-operational two-stage technology. During the first stage the hole is trilled and reamed by means of specially designed tool. During the second stage the is slide burnished through slid diamond burnishing tool with bilateral action. The study have been carried out on HAAS Mini Mill machining centre.
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ONE-OPERATIONAL TWO - STAGE TECHNOLOGY FOR FINISHING OF HOLES IN ALUMINUM ALLOY 2024-Т3 PART 2: MICRO-HARDNESS AND MICRO-STRUCTURE
- TITLE:
ONE-OPERATIONAL TWO - STAGE TECHNOLOGY FOR FINISHING OF HOLES IN ALUMINUM ALLOY 2024-Т3 PART 1: ROUGHNESS MODELLING
- AUTHOR(S):
I. M. Amudjev
- ABSTRACT:
The article presents the outcomes for the roughness and micro-hardness obtained the finishing of holes in aluminum alloy 2024-Т3 using one-operational two-stage technology. During the first stage the hole is trilled and reamed by means of specially designed tool. During the second stage the is slide burnished through slid diamond burnishing tool with bilateral action. The study have been carried out on HAAS Mini Mill machining centre.
- DOWNLOAD:
ONE-OPERATIONAL TWO - STAGE TECHNOLOGY FOR FINISHING OF HOLES IN ALUMINUM ALLOY 2024-Т3 PART 1: ROUGHNESS MODELLING
- TITLE:
MATHEMATICAL MODEL FOR A PNEUMATIC FORCE ACTUATOR SYSTEM
- AUTHOR(S):
A. Andreev, H. Hristov, G. Iliev, M. Racheva
- ABSTRACT:
We consider pneumatic cylinder tubes that connect valves with actuators. The aim of this work is to obiaun a new mathematical model for online control applications. For that purpose, a second-order hyperbolic equation corresponding to the model problem is derived. The Laplace transform is used and by this approach a sufficiently simple and applicable model is derived. The effect of different mathematical models for the considered problem is also discussed. Finally, some validation experiments by real engineering parameters are presented.
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MATHEMATICAL MODEL FOR A PNEUMATIC FORCE ACTUATOR SYSTEM
