scholarly journals Energy Efficient, Highly Precise Cascade Dryness Control for Fibrous Tape by Induction-Based Surface Heating of a Rotating Steel Cylinder with Moving Inductors

2021 ◽  
Vol 12 (1) ◽  
pp. 261
Author(s):  
Jacek Kucharski ◽  
Andrzej Fraczyk ◽  
Piotr Urbanek
Keyword(s):  
Simulation Analysis ◽  
Cascade Control ◽  
Cylinder Surface ◽  
Steel Cylinder ◽  
Promising Alternative ◽  
Water Steam ◽  
Paper Making ◽  
Whole Process ◽  
Loop Feedback ◽  
High Level

Drying various materials constitutes an essential component of several industrial processes, e.g., paper production. Typically, rotating cylinders heated internally by water steam are used for drying tape-shaped material in paper-making machines. Such an approach remains very energy-consuming, while the whole process is expensive and in conflict with the global policy of reducing energy consumption in heavy industry. One promising alternative method of drying fibrous tapes is the induction heating of drying cylinders. In this paper, we propose a drying system based on a set of inductors (electromagnetic field sources) that generate energy in the mantle of the cylinder and dry the running tape. By enabling the movement of the inductors, the system provides a high level of flexibility in terms of reacting to the varying humidity of the tape. Additionally, imaging the temperature field on the cylinder surface provides a supplementary source of information, enabling the temperature profile to be controlled. Two types of humidity control systems, a one-loop feedback control and a cascade control, were designed and analyzed. Simulation analysis and experimental verification performed using a semi-industrial setup proves that using the proposed cascade control ensures more than 30% faster response of the whole dryness control system.

Does Brand Awareness Impact Purchase Decision: A Case of Organic Grocery

2018 ◽  
Vol 6 (7) ◽  
pp. 45
Author(s):  
Gunjan Gumber ◽  
Jyoti Rana
Keyword(s):  
Organic Food ◽  
Brand Awareness ◽  
National Capital Region ◽  
Promising Alternative ◽  
Brand Recall ◽  
Brand Building ◽  
Brand Recognition ◽  
National Capital ◽  
High Level ◽  
Structured Questionnaire

In India, the concept of organic food is gaining widespread acceptability. Consumers are becoming more conscious about their health and are looking for food that serves as a promising alternative. Corporates, NGOs, Spiritual leaders and Government are also promoting this food, as it is free from irradiation, chemicals and artificial additives. A number of organic food brands are available in the market. The main objective of this study is to find out the level of brand awareness and its influence on purchase of organic grocery. The data was collected from 150 organic consumers in National Capital Region (Delhi, Gurgaon, Faridabad and Noida) through a structured questionnaire. Questions related to brand recall, brand recognition and purchase of organic grocery were asked. It was found that in general, there is a low level of brand awareness among consumers, and those who have high level of awareness; they consume organic grocery more often. The study will help corporates to make effective communication and brand-building strategies.

scholarly journals The use of classical methods and neural networks in deformation studies of hydrotechnical objects

2020 ◽  
Vol 12 (1) ◽  
pp. 718-725
Author(s):  
Maria Mrówczyńska ◽  
Jacek Sztubecki ◽  
Małgorzata Sztubecka ◽  
Izabela Skrzypczak
Keyword(s):  
Neural Networks ◽  
Artificial Neural Networks ◽  
Cylinder Surface ◽  
Building Structures ◽  
Steel Cylinder ◽  
Factors Affecting ◽  
Initial Stage ◽  
Artificial Neural ◽  
Set Of Points

Abstract Objects’ measurements often boil down to the determination of changes due to external factors affecting on their structure. The estimation of changes in a tested object, in addition to proper measuring equipment, requires the use of appropriate measuring methods and experimental data result processing methods. This study presents a statement of results of geometrical measurements of a steel cylinder that constitutes the main structural component of the historical weir Czersko Polskie in Bydgoszcz. In the initial stage, the estimation of reliable changes taking place in the cylinder structure involved the selection of measuring points essential for mapping its geometry. Due to the continuous operation of the weir, the points covered only about one-third of the cylinder area. The set of points allowed us to determine the position of the cylinder axis as well as skews and deformations of the cylinder surface. In the next stage, the use of methods based on artificial neural networks allowed us to predict the changes in the tested object. Artificial neural networks have proved to be useful in determining displacements of building structures, particularly hydro-technical objects. The above-mentioned methods supplement classical measurements that create the opportunity for carrying out additional analyses of changes in a spatial position of such structures. The purpose of the tests is to confirm the suitability of artificial neural networks for predicting displacements of building structures, particularly hydro-technical objects.

HTR-PM Simulation Analysis of Accident Conditions Based on vPower Platform

2014 ◽  
Author(s):  
Tang Yang ◽  
Yangping Zhou ◽  
Zhiwei Zhou ◽  
Zhang Dabin
Keyword(s):  
Simulation Analysis ◽  
Mutual Influence ◽  
Reactor Power ◽  
Steam Generators ◽  
Water Steam ◽  
Steady State Operation ◽  
Design Values ◽  
Accident Conditions ◽  
Good Agreement ◽  
Rankin Cycle

HTR engineering simulator can be achieved by embedding THERMIX code into the vPower simulation environment. The engineering simulator consists of double-module reactors, two steam generators and entire secondary loop system for power generation with a water-steam Rankin cycle. The engineering simulator can be applied to simulate the steady-state operation, but also transient and accident state of HTR-PM. This paper analyzes the trends of reactor power, helium flow, steam generator inlet parameters, turbine inlet parameters and other key parameters under accident conditions, as well as the mutual influence between the two module reactors during accident process. Current simulation results are in good agreement with the design values and safety analysis results of HTR-PM.

Analysis on Additional Pressure of Tube Sidewall of Immersed Tube Tunnel in Sinking Process of Tube Segment

2013 ◽  
Vol 387 ◽  
pp. 180-184
Author(s):  
Ya Dong Li ◽  
Hai Hong Mo ◽  
Jun Shen Chen
Keyword(s):  
Fluid Dynamics ◽  
Numerical Simulation ◽  
Simulation Analysis ◽  
Lateral Wall ◽  
Special Position ◽  
Additional Pressure ◽  
Whole Process ◽  
Pressure Changes ◽  
Dynamics Method ◽  
Tube Segment

The numerical simulation analysis on the whole process of the tube immersing is researched, which use computational fluid dynamics method, is based on RNG k~ε turbulence model. The analysis shows that: additional pressure of tube lateral wall depends on the changed flow field cause by tube immersing; through the analysis, it have explored the special position of additional pressure changes in the process of immersing; it also shows some problems should be paid attention, through analysis the stress of special position.

scholarly journals Numerical Simulation Analysis of NPR Anchorage Monitoring of Bedding Rock Landslide in Open-Pit Mine

2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Kai Zhang ◽  
Xiaojie Yang ◽  
Xuebin Cui ◽  
Yong Wang ◽  
Zhigang Tao
Keyword(s):  
Numerical Simulation ◽  
Early Warning ◽  
Simulation Analysis ◽  
Failure Process ◽  
Open Pit Mine ◽  
Open Pit ◽  
Stress Monitoring ◽  
Anchor Cable ◽  
Whole Process ◽  
Rock Landslide

Nanfen open-pit iron mine is the largest single open-pit mine in Asia. Because of the lag of the extension project, the section has slowly spread in the shape of “V,” and disasters such as landslides occur frequently. In this study, first, the NPR anchor cable monitoring, which shows supernormal mechanical characteristics and can realize the monitoring and early warning target for the whole landslide process and early warning curve of bedding rock “2016-1101 landslide” in the lower wall of Nanfen open-pit mine, was analyzed, revealing the failure process of the bedding rock landslide and the force evolution characteristics of the NPR anchor cable. Then, based on the Fish language in FLAC3D and 3DEC software, the mechanical model of the NPR anchor cable was constructed, and numerical simulation was performed on the whole process of “16-1101 landslide” induced by accumulation of old landslide body. The results of this study indicate that the stress monitoring curves and failure characteristics of the NPR anchor cables in the whole process of landslide by the two numerical simulation methods are basically consistent with the field measurement results, providing a theoretical and practical basis for the mechanistic analysis and numerical simulation of other similar slopes.

scholarly journals The new bud light steel system and the geometric shape evolution of light steel framework for COVID-19 patients appointed hospital (Huoshenshan hospital)

2020 ◽  
Vol 39 (6) ◽  
pp. 9015-9026
Author(s):  
Lilin Wang
Keyword(s):  
Simulation Analysis ◽  
Steel Structure ◽  
Model Material ◽  
Construction Process ◽  
Actual Measurement ◽  
Finite Element Software ◽  
Whole Process ◽  
Long Time ◽  
The Common ◽  
Actual Size

The light steel structure is always the common material of the movable plank house, and the new bud light steel system is the light steel system used for a long time after the earthquake. This paper discusses the mechanical system of the light steel structure of Huoshenshan hospital, which was built in ten days. In the process of building, the geometric form of roof stress has changed. In the actual structural design, the designer seldom takes the calculation of construction load into account, which is quite different from the actual construction process. So it is very important to simulate and monitor the whole process of structure installation. In this paper, the finite element software MIDAS / Gen is used for simulation analysis to ensure that the simulation analysis results are consistent with the construction process, the model material and the actual size are completely consistent, and the stress simulated by the software can meet the needs of the actual stress through the actual measurement.

Change through continuity:a quiet revolution in primary health care in New Zealand

2005 ◽  
Vol 29 (4) ◽  
pp. 380 ◽  
Author(s):  
Toni Ashton
Keyword(s):  
New Zealand ◽  
Health System ◽  
Structural Changes ◽  
Health Sector ◽  
Major Change ◽  
System Reform ◽  
Whole Process ◽  
And Performance ◽  
High Level ◽  
Key Aspects

IN A RECENTLY PUBLISHED paper entitled Continuity through change: the rhetoric and reality of health reform in New Zealand, I and my co-authors Nick Mays and Nancy Devlin pointed out that, in spite of a series of major health sector reforms during the 1990s and early 2000s, some key aspects of the system have endured.1 Moreover, many incremental changes to existing processes and systems that occurred during the reform period have, arguably, been more important to improving the functioning and performance of the system than the more high level (and more visible) structural changes. Since that paper was written, many further changes have occurred in the organisation, funding and management of the New Zealand health system. However, in contrast to the 1990s, the focus now is on continuity and stability rather than on any need for further major change. Indeed, terms such as ?reform? or ?restructuring? have now all but vanished from any debate about health policy in New Zealand. Perhaps the reformers have learned that health system reform is akin to training for the Olympics. The whole process takes a fair bit of time and effort, and results are unlikely to be achieved in the short term. Further major reform is also not regarded as politically viable. As noted in an article in the New Zealand Herald just before the general election in September, there is ?. . . considerable public sensitivity over any whiff of restructuring in health?.2

scholarly journals An Explorative Study of How Visceral States Influence the Relationship between Social Proof Heuristics and Donation Behavior When Consumers Are Using Self-Service Kiosks

2020 ◽  
Vol 12 (22) ◽  
pp. 9477
Author(s):  
Sanchit Pawar ◽  
Asle Fagerstrøm ◽  
Valdimar Sigurdsson
Keyword(s):  
Simulation Analysis ◽  
Positive Impact ◽  
Situational Variables ◽  
Cause Related Marketing ◽  
Social Proof ◽  
Marketing Activities ◽  
Self Service ◽  
Donation Behavior ◽  
Self Service Technology ◽  
High Level

Self-service kiosks are increasingly being used in situations where a person is out to buy food and/or drinks. Several cause-related marketing initiatives have capitalized on using self-service technology to include small donation requests at the point of purchase. In this context, it is highly likely that during such purchase situations, a person is under the influence of a visceral state like hunger or thirst. This study investigated how a simulated visceral state of thirst could influence donation behavior. More specifically, how donation social proof indicators presented on self-service kiosk screens can impact likelihood to buy. Results of a conjoint study (n = 83) demonstrate that, in a visceral state situation, only a high level of social proof related to donation has a positive impact on likelihood to buy. Any other level of social proof (medium, low and not mentioned), decrease the likelihood to buy in such situations. A scenario simulation analysis shows that cases which included a high level of social proof have relatively higher preference. Consequently, antecedent situational variables like visceral states must be taken into consideration when cause-related marketing activities such as social proof (related to donation) are used in self-service kiosks.

Numerical Simulation of Flash Floods Routing Based on Improved Leap-Frog Method

2013 ◽  
Vol 347-350 ◽  
pp. 2173-2177
Author(s):  
Jia Hua Zhang ◽  
Chi Zhang
Keyword(s):  
Numerical Simulation ◽  
Moving Boundary ◽  
Simulation Analysis ◽  
Flash Flood ◽  
Mass Conservation ◽  
Correction Method ◽  
Gansu Province ◽  
Simulation Accuracy ◽  
Whole Process ◽  
Steep Terrain

in the 2-d numerical simulation of flash flood disaster, due to flood often occurred in the steep terrain and water flow rapidly changed, lead to that the calculated value is unstable and even the calculation diverge in the simulation. This paper presents a grid outflow correction method, which is based on the leap-frog finite difference format, through modifying the outflow rate of the grid circularly, to ensure the mass conservation in the whole process of computing. In the local dam bursting model, the simulated result comparison of the grid outflow correction method and the algorithm of implicit alternating direction on the mass conservation shows that, the new method can ensure the simulation accuracy and the numerical stability under the condition of steep terrain and moving boundary. According to the proposed method, the simulation analysis in the process of extreme flash flood disasters which happened in 2010 Zhouqu county in Gansu province was carried out. The comparison of simulation results and remote sensing estimation results shows that the deviation of the flood evolution time, speed and impact height are within 5%, and the consistency of evolution path is good, which verifies the validity of the algorithm.

scholarly journals Design and Implementation of Robust Navigation System Platform for Autonomous Mobile Robot

2019 ◽  
Vol 9 (2) ◽  
pp. 1346-1349
Keyword(s):  
Navigation System ◽  
Closed Loop ◽  
Autonomous Robot ◽  
Autonomous Mobile Robots ◽  
Pid Algorithm ◽  
Final Destination ◽  
Loop Feedback ◽  
Closed Loop Feedback ◽  
High Level ◽  
Exchange Data

An autonomous robot can navigate in a given region and reach to a specified location. The navigation system for these robots has to be reliable, versatile and rugged. In this paper, design and development aspects of such navigation system are discussed. A two level architecture is proposed for navigation of the autonomous robot. The low level controller (LLC) generates odometry data and implements closed loop feedback based PID algorithm. The high level controller (HLC) is used to generate velocity commands based on the path planned and inputs sensed from environment. The two controllers continuously exchange data with each other to reach the final destination. This navigation system platform can be used to develop autonomous mobile robots

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