scholarly journals FAST FLUX TEST FACILITY. PLANT OPERATION AND CONTROL.

1969 ◽  
Author(s):  
Keyword(s):  
Test Facility ◽  
Plant Operation ◽  
Fast Flux ◽  
And Control

Optimizing anaerobic co-digestion plants: MIR online instrumentation and dynamic real-time substrate feed optimization

2015 ◽  
Vol 63 (7) ◽  
Author(s):  
Daniel Gaida ◽  
Christian Wolf ◽  
Robin Eccleston ◽  
Michael Bongards
Keyword(s):  
Predictive Control ◽  
Closed Loop ◽  
Closed Loop Control ◽  
Control Loop ◽  
Loop Control ◽  
Plant Operation ◽  
Novel Approaches ◽  
The One ◽  
Middle Infrared ◽  
And Control

AbstractClosed-loop control of the substrate feed as well as the application of online instrumentation are important to achieve optimal biogas plant operation. Therefore, this paper presents two novel approaches for online instrumentation and control to achieve optimal AD plant operation based on middle-infrared spectroscopy on the one hand and nonlinear model predictive control on the other hand. At present, research into both techniques is being performed separately, with the intention that in the future the spectroscopic measurements will be integrated into the control loop.

Prototyping an autonomous delivery vehicle

2018 ◽  
Vol 66 (2) ◽  
pp. 160-182
Author(s):  
Benjamin C. Heinrich ◽  
Thorsten Luettel ◽  
Dennis Fassbender ◽  
Patrick Burger ◽  
Felix Ebert ◽  
...  
Keyword(s):  
Test Facility ◽  
Sensor Calibration ◽  
Software Components ◽  
Delivery Vehicle ◽  
Planning And Control ◽  
Custom Made ◽  
Position And Orientation ◽  
High Level ◽  
Control Modules ◽  
And Control

AbstractIn this paper, we describe the hardware and software components of a fully autonomous prototype delivery vehicle. Equipped with a robotic arm, the demonstrator is capable of delivering packages and picking up new ones by interacting with custom-made delivery boxes. As highly accurate positioning w. r. t. a box is required for successful handover of packages, we track the pose (position and orientation) of the box using a high-resolution on-board camera. The resulting estimate is relayed to our planning and control modules, which ensure that the vehicle reaches its required pose with centimeter-level accuracy.In order to deliver packages, the car needs to autonomously navigate our test facility, avoiding static and dynamic obstacles while obeying simple traffic rules. As one focus is on the practical challenges encountered when building a prototype, we cover issues ranging from sensor calibration and system identification to perception, planning, control, and the implementation of high-level behaviors. While some of the proposed solutions to these problems are not necessarily novel, they allowed us to demonstrate the vehicle’s capabilities after a development phase of less than 12 months.

Introduction and Commissioning of the New Darmstadt Transonic Compressor Test Facility

2019 ◽  
Author(s):  
Christian Kunkel ◽  
Jan Werner ◽  
Daniel Franke ◽  
Heinz-Peter Schiffer ◽  
Fabian Wartzek ◽  
...  
Keyword(s):  
Control Systems ◽  
Gas Turbines ◽  
State Of The Art ◽  
Test Facility ◽  
Test Results ◽  
Test Rig ◽  
Vast Number ◽  
Transonic Compressor ◽  
Profound Knowledge ◽  
And Control

Abstract With the well-known Transonic Compressor Darmstadt (TCD) in operation since 1994, profound knowledge in designing and operating a sophisticated test-rig is available at the Institute of Gas Turbines and Aerospace Propulsion of TU Darmstadt. During this period, TCD has been subject to a vast number of redesigns within different measurement campaigns (see [1], [2], [3], [4], [5], [6], [7], [8]). To expand the capabilities and ensure a sustainable process of compressor research, a new test facility was designed and built by the institute. The new test rig Transonic Compressor Darmstadt 2 (TCD2) features increased power for higher pressure ratios and higher mass-flow, a state of the art control system, increased flexibility towards different compressor geometries and modern data acquisition hardware and software. Following the successful commissioning of the test-rig in March 2018, a first measurement campaign has been conducted. Early test results regarding aerodynamic performance and aeroelastic effects of the test compressor are presented together with a detailed overview of test-rig infrastructure and control systems as well as the test compressor and the measurement hardware.

Design of Data Acquisition and Control System for Indian Test Facility of Diagnostics Neutral Beam

2015 ◽  
Vol 96-97 ◽  
pp. 961-965 ◽  
Author(s):  
Jignesh Soni ◽  
Himanshu Tyagi ◽  
Ratnakar Yadav ◽  
Chandramouli Rotti ◽  
Mainak Bandyopadhyay ◽  
...  
Keyword(s):  
Control System ◽  
Data Acquisition ◽  
Neutral Beam ◽  
Test Facility ◽  
And Control

A Survey of Fast Flux Botnet Detection With Fast Flux Cloud Computing

2020 ◽  
Vol 10 (3) ◽  
pp. 17-53
Author(s):  
Ahmad Al-Nawasrah ◽  
Ammar Ali Almomani ◽  
Samer Atawneh ◽  
Mohammad Alauthman
Keyword(s):  
Cloud Computing ◽  
Solution Space ◽  
Memory Storage ◽  
Future Research ◽  
Detection Accuracy ◽  
Security Threats ◽  
Domain Names ◽  
Future Research Directions ◽  
Fast Flux ◽  
And Control

A botnet refers to a set of compromised machines controlled distantly by an attacker. Botnets are considered the basis of numerous security threats around the world. Command and control (C&C) servers are the backbone of botnet communications, in which bots send a report to the botmaster, and the latter sends attack orders to those bots. Botnets are also categorized according to their C&C protocols, such as internet relay chat (IRC) and peer-to-peer (P2P) botnets. A domain name system (DNS) method known as fast-flux is used by bot herders to cover malicious botnet activities and increase the lifetime of malicious servers by quickly changing the IP addresses of the domain names over time. Several methods have been suggested to detect fast-flux domains. However, these methods achieve low detection accuracy, especially for zero-day domains. They also entail a significantly long detection time and consume high memory storage. In this survey, we present an overview of the various techniques used to detect fast-flux domains according to solution scopes, namely, host-based, router-based, DNS-based, and cloud computing techniques. This survey provides an understanding of the problem, its current solution space, and the future research directions expected.

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