scholarly journals Automated Microclimate Regulation in Agricultural Facilities Using the Air Curtain System

Sensors ◽  
2021 ◽  
Vol 21 (24) ◽  
pp. 8182
Author(s):  
Nikolay Kiktev ◽  
Taras Lendiel ◽  
Viktor Vasilenkov ◽  
Oksana Kapralуuk ◽  
Taras Hutsol ◽  
...  
Keyword(s):  
Experimental Studies ◽  
Digital Control System ◽  
Production Potential ◽  
Air Curtain ◽  
Operating Modes ◽  
Reproductive Ability ◽  
Livestock Buildings ◽  
National University ◽  
The Internet Of Things ◽  
And Training

Creating and maintaining the microclimate in livestock buildings is associated with numerous engineering and technical challenges. Together with adequate feeding, the microclimate determines the health, reproductive ability, and production potential of the animals (obtaining a maximum amount of high-quality products). One of the deciding steps in improving the parameters of microclimate, i.e., temperature and humidity in agricultural facilities, particularly in livestock buildings, is to develop reliable and highly efficient air curtains in the vestibules. The objective of the manuscript is to investigate the parameters of the microclimate in livestock buildings using the air curtain, supported by automation and ICT technologies for rational operating modes. The presented theoretical and experimental studies on improving the microclimate parameters in livestock buildings were carried out using an innovative air curtain system. Its power is calculated based on the dimensions of the room, and the flow rate of warm air near the floor level is three times lower than at the installation site. The use of air curtains reduces consumption of thermal energy needed to maintain an optimal microclimate for livestock by 10–15%. Furthermore, the use of an automated digital control system maintains an optimal microclimate in the building. The developed energy-saving system for creating an optimal micro-climate in livestock buildings using air curtains was tested in a pigsty of the Research and Training Farm “Vorzel” of the National University of Life and Environmental Sciences of Ukraine, located in the Kiev region. The developed automated microclimate system using air curtains significantly improves the microclimate parameters and significantly reduces power consumption. The system can be further developed by adding remote control based on the Internet of Things (IoT) technology.

DIESEL ENGINE OPERATION IN USE OF FUEL WITH ADDITIVES

2018 ◽  
pp. 18-24
Author(s):  
Petar Kazakov ◽  
Atanas Iliev ◽  
Emil Marinov
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Internal Combustion Engines ◽  
Experimental Studies ◽  
Combustion Engines ◽  
Engine Operation ◽  
Factors Affecting ◽  
Operating Modes ◽  
Positive Effects

Over the decades, more attention has been paid to emissions from the means of transport and the use of different fuels and combustion fuels for the operation of internal combustion engines than on fuel consumption. This, in turn, enables research into products that are said to reduce fuel consumption. The report summarizes four studies of fuel-related innovation products. The studies covered by this report are conducted with diesel fuel and usually contain diesel fuel and three additives for it. Manufacturers of additives are based on already existing studies showing a 10-30% reduction in fuel consumption. Comparative experimental studies related to the use of commercially available diesel fuel with and without the use of additives have been performed in laboratory conditions. The studies were carried out on a stationary diesel engine СМД-17КН equipped with brake КИ1368В. Repeated results were recorded, but they did not confirm the significant positive effect of additives on specific fuel consumption. In some cases, the factors affecting errors in this type of research on the effectiveness of fuel additives for commercial purposes are considered. The reasons for the positive effects of such use of additives in certain engine operating modes are also clarified.

Evaluation of the effectiveness of different image skeletonization methods in biometric security systems

2020 ◽  
Vol 10 ◽  
Author(s):  
Mariya Nazarkevych ◽  
Serhii Dmytruk ◽  
Volodymyr Hrytsyk ◽  
Olha Vozna ◽  
Anzhela Kuza ◽  
...  
Keyword(s):  
Experimental Studies ◽  
Fingerprint Recognition ◽  
Good Time ◽  
Gabor Filtering ◽  
Security Systems ◽  
Thinning Algorithm ◽  
Biometric Security ◽  
Recognition Quality ◽  
Control And Management ◽  
The Internet Of Things

Background: Systems of the Internet of Things are actively implementing biometric systems. For fast and high-quality recognition in sensory biometric control and management systems, skeletonization methods are used at the stage of fingerprint recognition. The analysis of the known skeletonization methods of Zhang-Suen, Hilditch, Ateb-Gabor with the wave skeletonization method has been carried out and it shows a good time and qualitative recognition results. Methods: The methods of Zhang-Suen, Hildich and thinning algorithm based on Ateb-Gabor filtration, which form the skeletons of biometric fingerprint images, are considered. The proposed thinning algorithm based on Ateb-Gabor filtration showed better efficiency because it is based on the best type of filtering, which is both a combination of the classic Gabor function and the harmonic Ateb function. The combination of this type of filtration makes it possible to more accurately form the surroundings where the skeleton is formed. Results: Along with the known ones, a new Ateb-Gabor filtering algorithm with the wave skeletonization method has been developed, the recognition results of which have better quality, which allows to increase the recognition quality from 3 to 10%. Conclusion: The Zhang-Suen algorithm is a 2-way algorithm, so for each iteration, it performs two sets of checks during which pixels are removed from the image. Zhang-Suen's algorithm works on a plot of black pixels with eight neighbors. This means that the pixels found along the edges of the image are not analyzed. Hilditch thinning algorithm occurs in several passages, where the algorithm checks all pixels and decides whether to replace a pixel from black to white if certain conditions are satisfied. This Ateb-Gabor filtering will provide better performance, as it allows to obtain more hollow shapes, organize a larger range of curves. Numerous experimental studies confirm the effectiveness of the proposed method.

Conditions for the Effective Use of Air Curtain on Objects of Agricultural Production

2020 ◽  
Vol 67 (1) ◽  
pp. 54-59
Author(s):  
Aleksey V. Kuz’michev ◽  
Stanislav S. Trunov ◽  
Dmitriy A. Tikhomirov
Keyword(s):  
Agricultural Production ◽  
Theoretical Models ◽  
Research Purpose ◽  
Engineering Practice ◽  
Physical Factors ◽  
Air Curtain ◽  
Operating Modes ◽  
Air Jets ◽  
Urgent Task ◽  
Design Characteristics

Creating and maintaining a microclimate in animal housing is an energy-intensive technological process that consumes up to 70 percent of the thermal energy consumed on cattle farms. Improving heating and ventilation systems aimed at reducing energy consumption is an urgent task. (Research purpose) The research purpose is to analyze the theoretical models for calculating air curtains and evaluate the possibility of their use for agricultural production facilities and to identify promising directions in the design solutions for thermal air curtains aimed at rural consumers. (Materials and methods) The article considers the theoretical justification and calculation of air curtains. The authors studied the physical model of interaction of air jets in openings, which serves as the basis for mathematical calculation of air curtains in engineering practice. The article describes the features of using the models for calculating air curtains for agricultural objects and the energy parameters of the curtains depending on the design characteristics and external environmental factors. (Results and discussion) The effect of the air curtain on the energy characteristics of the room has been studied. It was found that it is necessary to determine the type of air curtain that is optimally suitable for protecting the gate opening, with or without heating the air curtain. Authors have found that the engineering methods of calculation are based on different experimental data, which leads to a discrepancy in the results of evaluating the effectiveness of the designed curtain, overestimating its energy intensity and power. The calculation of heat curtains, operating modes should be carried out taking into account the variable effects of external physical factors, the equipment should correspond to a specific room. (Conclusions) The use of air curtains reduces or eliminates the penetration of external cold air into the room through the openings of external gates, requires a smaller volume of air supplied by the curtain, compared to the mass of the incoming air flow.

scholarly journals Application of intelligent orienteering based on Internet of things

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Donghui Zhang ◽  
Ruijie Liu
Keyword(s):  
Internet Of Things ◽  
Network Architecture ◽  
Emergency Services ◽  
Simulation Experiment ◽  
Experimental Studies ◽  
Signal Stability ◽  
Anchor Nodes ◽  
Set Up ◽  
The Relationship ◽  
The Internet Of Things

Abstract Orienteering has gradually changed from a professional sport to a civilian sport. Especially in recent years, orienteering has been widely popularized. Many colleges and universities in China have also set up this course. With the improvement of people’s living conditions, orienteering has really become a leisure sport in modern people’s life. The reduced difficulty of sports enables more people to participate, but it also exposes a series of problems. As the existing positioning technology is relatively backward, the progress in personnel tracking, emergency services, and other aspects is slow. To solve these problems, a new intelligent orienteering application system is developed based on the Internet of things. ZigBee network architecture is adopted in the system. ZigBee is the mainstream scheme in the current wireless sensor network technology, which has many advantages such as convenient carrying, low power consumption, and signal stability. Due to the complex communication environment in mobile signal, the collected information is processed by signal amplification and signal anti-interference technology. By adding anti-interference devices, video isolators and other devices, the signal is guaranteed to the maximum extent. In order to verify the actual effect of this system, through a number of experimental studies including the relationship between error and traffic radius and the relationship between coverage and the number of anchor nodes, the data shows that the scheme studied in this paper has a greater improvement in comprehensive performance than the traditional scheme, significantly improving the accuracy and coverage. Especially the coverage is close to 100% in the simulation experiment. This research has achieved good results and can be widely used in orienteering training and competition.

Do academic and professional institutions promote the awareness and knowledge of Islamic banking and finance in Nigeria?

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Umar Habibu Umar ◽  
Mustapha AbuBakar ◽  
Abubakar Jamilu Baita ◽  
Tasiu Tijjani Kademi ◽  
Md Harashid Haron
Keyword(s):  
Training Programs ◽  
Continuing Professional Development ◽  
Professional Associations ◽  
Islamic Banking ◽  
Content Type ◽  
Fully Integrated ◽  
Banking And Finance ◽  
Finance Industry ◽  
National University ◽  
And Training

Purpose The purpose of this study is to examine the contribution of academic and professional institutions in promoting the awareness and knowledge of Islamic banking and finance in Nigeria. Design/methodology/approach The data were generated through a documentary research method by examining the Benchmark Minimum Academic Standards (BMAS) for Nigerian universities and Nigerian university curricula for the relevant undergraduate programs, as well as examination syllabi and training brochures for the relevant professional associations. Findings The study found that universities do not promote significantly the awareness and knowledge of Islamic banking and finance. Similarly, the relevant professional associations through their examinations and training programs contribute little or nothing to the promotion of awareness and knowledge. Research limitations/implications This study solely relied upon documentary evidence upon which the findings were based. In addition, for academic institutions, only undergraduate BMAS and curricula were examined. Practical implications There should be collaborations between the National University Commission of Nigeria, relevant Islamic and non-Islamic professional bodies and Nigerian Universities to ensure that courses (subjects) that could promote the awareness and knowledge of Islamic banking and finance are fully integrated into academic and professional curricula and training programs. Social implications The integration of an adequate number of relevant courses/topics into academic curricula and professional institution examination syllabi and their Mandatory Continuing Professional Development programs would greatly contribute to the production of competent and skillful employees to work for the growth and development of the Islamic banking and finance industry. Originality/value This study provides better ways of ensuring that knowledgeable and qualified employees are produced to work for the sustainability of the global Islamic banking and finance industry.

Records and Archives Management Education and Training Opportunities in Bangladesh

2021 ◽  
pp. 25-41
Author(s):  
Md. Maidul Islam
Keyword(s):  
Information Management ◽  
Education And Training ◽  
Electronic Systems ◽  
Public And Private ◽  
Efficient Management ◽  
Hands On ◽  
National University ◽  
Affiliated Colleges ◽  
Training Opportunities ◽  
And Training

The main aim of this chapter is to contextualize the records and archives management (RAM) education and training opportunities in Bangladesh with a view to identify the opportunities and challenges ahead in this endeavour. Some public and private universities and National University affiliated colleges and institutions are providing RAM education and National Library, National Archives, National Museum of Bangladesh, etc. are providing RAM training opportunities hands on practice in Bangladesh. The author discusses the current curriculum of different academia and need for RAM education and training opportunities as a subset of information management, with an acknowledged impact on the systematic and efficient management of Bangladeshi institutions. The author shows how the focus of RAM have shifted over the recent past from the archival management of unwanted documents, to the management of electronic systems, giving records managers an equal standing with other professionals in the field of information management or knowledge management. The result reveals that training opportunities on RAM have increased the professionals' development in Bangladesh. The author feels this chapter may encourage more such research on RAM system in Bangladesh and beyond.

scholarly journals Leveraging Stack4Things for Federated Learning in Intelligent Cyber Physical Systems

2020 ◽  
Vol 9 (4) ◽  
pp. 59
Author(s):  
Fabrizio De Vita ◽  
Dario Bruneo
Keyword(s):  
Intelligent Systems ◽  
Physical World ◽  
Cyber Physical Systems ◽  
Training Data ◽  
Cloud Platform ◽  
Model Accuracy ◽  
Training Time ◽  
Physical Systems ◽  
The Internet Of Things ◽  
And Training

During the last decade, the Internet of Things acted as catalyst for the big data phenomenon. As result, modern edge devices can access a huge amount of data that can be exploited to build useful services. In such a context, artificial intelligence has a key role to develop intelligent systems (e.g., intelligent cyber physical systems) that create a connecting bridge with the physical world. However, as time goes by, machine and deep learning applications are becoming more complex, requiring increasing amounts of data and training time, which makes the use of centralized approaches unsuitable. Federated learning is an emerging paradigm which enables the cooperation of edge devices to learn a shared model (while keeping private their training data), thereby abating the training time. Although federated learning is a promising technique, its implementation is difficult and brings a lot of challenges. In this paper, we present an extension of Stack4Things, a cloud platform developed in our department; leveraging its functionalities, we enabled the deployment of federated learning on edge devices without caring their heterogeneity. Experimental results show a comparison with a centralized approach and demonstrate the effectiveness of the proposed approach in terms of both training time and model accuracy.

scholarly journals The results of studies of eccentric tillage roller

2019 ◽  
Vol 126 ◽  
pp. 00010
Author(s):  
Ivan Sharonov ◽  
Vladimir Kurdyumov ◽  
Viktor Kurushin
Keyword(s):  
Experimental Studies ◽  
Soil Treatment ◽  
Dynamic Force ◽  
Theoretical Studies ◽  
Soil Density ◽  
Operating Modes ◽  
Factors Influencing ◽  
The Relationship ◽  
Required Quality

Developed by eccentric tillage rink, which ensures the desired quality of the soil and increase the yield of crops. As a result of theoretical studies, an expression for determining the dynamic force that increases the intensity of crumbling soil lumps, depending on the regime parameters of the rink. In addition, the relationship between the power required when driving the rink, its parameters. The factors influencing the process of tillage by the developed roller are determined. As a criterion of optimization, the adopted coefficient of compliance with for the density soil of benchmark, which characterizes the quality of soil rolling from the position of compliance of soil density with agrotechnical requirements. As a result of experimental studies, the parameters and operating modes of the roller are optimized, at which the required quality of soil treatment is achieved.

Developing a Method of Hydroerosive Saturation of Liquids with Microparticles of Target Materials Using Ultrajet

2020 ◽  
pp. 3-14
Author(s):  
A.L. Galinovsky ◽  
Myo Htet KYAW ◽  
A.S. Provatorov
Keyword(s):  
Experimental Studies ◽  
Material Surface ◽  
Traditional Methods ◽  
Operating Modes ◽  
Factors Influencing

This paper presents a study on innovative use of ultrajet technologies and expanding their areas of applications. Factors influencing the process of ultrajet dispersing are determined, based on which special tooling is developed and operating modes and parameters are selected. The results of experimental studies on dispersing silver and copper targets are presented. The composition of the obtained suspensions and features of the particles formed in the process of hydroerosion of the material surface (targets) are examined. It is determined that the proposed technology possesses broad capabilities and advantages compared to traditional methods of obtaining suspensions.

Reproductive physiology in the pig with special reference to early weaning

1972 ◽  
Vol 1 ◽  
pp. 5-18 ◽  
Author(s):  
C. Polge
Keyword(s):  
Special Reference ◽  
Post Partum ◽  
Experimental Studies ◽  
Reproductive Physiology ◽  
Early Weaning ◽  
Reproductive Ability ◽  
Profound Influence

The object of this paper is to review some aspects of reproductive physiology in the pig, especially in relation to conditions after farrowing when reproductive ability is normally inhibited by lactation and suckling, and when weaning at different periods after parturition may have a profound influence on the chances of successful conception and pregnancy. In undertaking this review, however, it soon became clear that very few detailed experimental studies had been carried out in sows during the period immediately following parturition. It was considered best, therefore, to compare some of the situations which exist in pigs at other reproductive stages with what little is known about the sow at the post partum stage and during lactation.

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