The Operating Environment Substitution-based Field Test Technology of UHVDC Protection System: Part 2 Software Environment Substitution and Field Application

2019 ◽  
Author(s):  
Xiangping Kong ◽  
Xinyue Gong ◽  
Zhihai Shu ◽  
Chenqing Wang
Keyword(s):  
Field Test ◽  
Field Application ◽  
Protection System ◽  
Operating Environment ◽  
Software Environment ◽  
Test Technology ◽  
System Part

scholarly journals Numerical Analysis of the Effects of the Geometric and Weight Parameters on the Exterior Ballistics of a Designed Counterprojectile

2017 ◽  
Vol 8 (1) ◽  
pp. 89-100
Author(s):  
Jakub MICHALSKI ◽  
Zbigniew SURMA ◽  
Marta CZYŻEWSKA
Keyword(s):  
Aerodynamic Characteristics ◽  
Protection System ◽  
Software Environment ◽  
Active Protection ◽  
Protected Object ◽  
Motion Parameters ◽  
Exterior Ballistics ◽  
Technology Demonstrator ◽  
Selection Of

This paper presents a selection of deliverables of a research project intended to develop a technology demonstrator for an active protection system smart counterprojectile. Numerical simulations were completed to analyse the effects of geometry and weight of the counterprojectile warhead on the counterprojectile flight (motion) parameters. This paper investigates four variants of the counterprojectile warhead shape and three variants of the counterprojectile warhead weight. Given the investigated geometric and weight variants, the PRODAS software environment was used to develop geometric models of the counterprojectile warhead, followed by the determination of the model aerodynamic characteristics. The final deliverable of this work are the results of the numerical simulation of the counterprojectile motion along the initial flight path length. Given the required activation of the active protection system in direct proximity of the protected object, the analyses of counterprojectile motion parameters were restricted to a distance of ten-odd metres from the counterprojectile launching system.

A Study on Sacrificial Anode Cathodic Protection for Wharf Steel Pile of Tripoli Lebanon

2014 ◽  
Vol 556-562 ◽  
pp. 228-231
Author(s):  
Da Jing Fang ◽  
Jun Huang ◽  
Ya Ping Wang ◽  
Er Bu Shen ◽  
Shun Kai Li ◽  
...  
Keyword(s):  
Field Test ◽  
Current Density ◽  
Cathodic Protection ◽  
Protection System ◽  
Sacrificial Anode ◽  
Sheet Pile ◽  
Sea Mud ◽  
Current Densities ◽  
Steel Pipe Sheet Pile ◽  
Optimal Average

In this paper, the sacrificial anode protection system for steel pile of Tripoli wharf (Lebanon) was studied. Optimal average protection current densities were selected for steel pipe/sheet pile of seaside zone back filled zone and sea mud zone. Based on field test and investigation, we found that the optimal average protection current density for seaside zone is 0.060 A/m2, back filled zone 0.030 A/m2 and sea mud zone 0.025 A/m2, respectively.

scholarly journals DIAGNOSIS DAN PENGENDALIAN PENYAKIT ANTRAKNOSA PADA PAKIS DENGAN FUNGISIDA

2011 ◽  
Vol 11 (2) ◽  
pp. 194-200
Author(s):  
Christanti Sumardiyono ◽  
Tri Joko ◽  
Yuli Kristiawati ◽  
Yufita Dwi Chinta
Keyword(s):  
Field Experiment ◽  
Field Test ◽  
Concentration Field ◽  
Apple Fruit ◽  
Field Application ◽  
In Vitro Test ◽  
Mycelium Growth ◽  
Vitro Test ◽  
Poisoned Food Technique

Leatherleaf fern is an important export commodity of floriculture.  One of the most destructive disease on leatherleaf fern is anthracnose. The aim of this study was to identify the causal agent of antracnose-like disease on leatherleaf fern, to detect the pathogen in soil, and to control the disease with fungicides. Diagnosis was done with modified Koch Postulate. Identification of the pathogen was done by direct observation from the symptom under microscope. Isolation of the pathogen from die back leaves and soil was done on PDA. Inoculation was done on apple fruit indicator. The tested fungicides were difeconazole, benomyl, mancozeb+cymoxanil 8/64, tebuconazole, acebenzolar e-methyl+mancozeb 1/48, mancozeb, and 73.8% mancozeb + 6.2% carbendazim. In vitro test was done by poisoned food technique at 0% (checked), 0.025%, 0.05%, 0.1%, 0.2% and 0.4% concentration, while field test was done at 0.4% level concentration. Field application of pesticides was conducted by spraying twice a week for eight weeks. The result showed that the anthracnose-like disease of leatherleaf fern was anthracnose caused by Colletotrichum sp. The pathogen was found and survived in soil. In vitro test showed that 0.4% was the best concentration to inhibit mycelium growth. Based on this result, field experiment  was done on 0.4% concentration of fungicides. The mixture of 73.8% mancozeb and 6.2% carbendazim  was the most effective fungicide to inhibit Colletotrichum sp. in vitro. Spraying with 0.4% concentration eight times significantly reduced disease intensity in the field.

scholarly journals MODEL OF THE PROCESS OF FUNCTIONING OF THE INFORMATION PROTECTION SYSTEM FROM UNAUTHORIZED ACCESS CREATED IN THE SOFTWARE ENVIRONMENT OF IMITATION MODELING "CPN TOOLS"

2019 ◽  
Vol 46 (1) ◽  
pp. 90-102
Author(s):  
O. I. Bokova ◽  
I. G. Drovnikov ◽  
A. D. Popov ◽  
E. A. Rogozin
Keyword(s):  
Simulation Model ◽  
Computational Experiment ◽  
Protection System ◽  
Automated System ◽  
Information Protection ◽  
Software Environment ◽  
Unauthorized Access ◽  
Temporal Characteristics ◽  
Cpn Tools ◽  
Technical Specifications

Objectives. At present, conducting a computational experiment on a system for protecting information from unauthorized access operated in an automated system is a time consuming process. The greatest difficulty in this area of research is the determination of probabilistic-temporal characteristics and the formation of reports during the operation of the information protection system. In order to analyze, obtain and study the probabilistic-time characteristics of this system, it is necessary to develop a mathematical model of its operation using an imitational modeling tool.Method. One of the methods for solving this problem is a computational experiment, which is based on the construction of a simulation model. The CPN Tools environment was chosen as a software simulation product, the main advantages of which are: a high level of visualization, the ability to generate various reports on the system operation, fast modifiability of models for solving a different class of problems, as well as integration with other software means for the formation of graphical dependencies.Result. A simulation model of the system for protecting information from unauthorized access in the “CPN Tools” software environment was developed. protected performance.Conclusion. The presented im-model model of protecting information from unauthorized access in the software environment “CPN Tools” can be used as a tool in assessing the security of special bodies for the attestation of informatization objects and structural divisions of authorized departments. It can also be used in the design of such systems in order to prevent logical errors, determine their temporal characteristics and compare with the existing ones in accordance with the technical specifications for the system being developed to protect information from unauthorized access.

scholarly journals Design and implementation of an impressed current cathodic protection system for buried metallic pipes (part II) (considering Al-Quds gas station in Baghdad)

2020 ◽  
Vol 11 (1) ◽  
pp. 275
Author(s):  
Saif al deen H Mohammed ◽  
Isam M Abdulbaqi
Keyword(s):  
Field Test ◽  
Cathodic Protection ◽  
Empirical Formula ◽  
Analytical Study ◽  
Lower Cost ◽  
Protection System ◽  
Design And Implementation ◽  
Impressed Current ◽  
Cathodic Protection System ◽  
Impressed Current Cathodic Protection

<span>In this part, the implementation of the Cathodic Protection (CP) station in a new position is done due to the analytical study of the part (I) [1]. Also, a PV fed self-adjusted DC-DC converter is designed and implemented for this purpose, and Aluminum anodes designed and manufactured for the sake of approving the proposed CP station operation. A field test shows enhanced results due to the National Association of Corrosion Engineering NACE standard. An edit has been made on the main empirical formula that is previously intended for the design of the same CP system. The proposed CP station is very flexible, more accurate, of lower cost, and needs little maintenance as compared with the already existing CP station.</span>

Research on the Technology of RFID Sliding Sleeve

2014 ◽  
Vol 496-500 ◽  
pp. 1552-1555
Author(s):  
Lei Shi ◽  
Xing Jiu Zhong ◽  
Jun Wu ◽  
Bin Li
Keyword(s):  
Field Test ◽  
Horizontal Well ◽  
Field Application ◽  
Low Permeability ◽  
Low Permeability Reservoir ◽  
The World ◽  
Volume Fracturing ◽  
Significant Application

There is a very significant application today towards multiple zone fracturing operations in a horizontal well of low permeability reservior all over the world. But the number of the ball seat activated sliding sleeves that can be run in a well is limited because of the design and cant meet the need of volume fracturing in low permeability reservoir; Also the sleeves can only be shifted by CT, which extend the length of the operation and add to the overall costs. This paper introduces a kind of sleeve which is controlled by RFID and meet the need of volume fracturing, the number of sleeves that can be run in a well using this technology is essentially unlimited and can be operated remotely[1-3]. It is eay to operate and no intervention; It is proved by field test that this sleeve is reliable and can meet the field application.

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