scholarly journals Investigation of methods of rodent control and analysis of existing devices constructed based on electrophysical control method

2021 ◽  
Vol 6 (48) ◽  
pp. 5-5
Author(s):  
Dmitry Surinsky ◽  
Sergey Egorov ◽  
Ilya Shchinnikov
Keyword(s):  
Control Method ◽  
Operating Experience ◽  
Rodent Control ◽  
Control Devices ◽  
Stun Gun ◽  
Methods Of Control

This article is considered used and newly developed rodent control devices, taking into account operating experience with patented structures, and analyzes the options for their use to control the pests. The analysis of the currently used methods for protection showed that there is a need not only to use devices for scaring and destruction, but also to design a device for research is required taking electrophysical methods for consideration. As a result, a model of an electrocontact grid has been proposed that plays the role of a stun gun to scare off rodents. Keywords: DERATIZATION, DERATIZER, ULTRASOUND, RODENTS, METHODS OF CONTROL, STUN GUN

Ground Adaptability Characterization for Digging in Complex Geotechnical Conditions and Risk Mitigation

2011 ◽  
Vol 415-417 ◽  
pp. 1431-1434
Author(s):  
Wei Wei Yu ◽  
Xuan Guo
Keyword(s):  
Risk Factors ◽  
Control Method ◽  
Risk Mitigation ◽  
Tunnel Construction ◽  
Soil Pressure ◽  
Ground Movements ◽  
Construction Risk ◽  
And Control ◽  
Methods Of Control

Characterization of geotechnical digging and control the dynamical settlement is very necessary to mitigate construction risk. The metro tunnels of being constructed access to each other or near to the ground is high risk and physically difficult and costly. The control method becomes imperative. Some cases of digging prediction of ground movements and assessment of risk of damage to above or adjacent constructions have become an important issue especially in urban projec. Ground adaptability characterization is the key of control the tunneling in complex geotechnical conditions both in rock and soft stratum. High and changed water-soil pressure also is risk factors to effect tunneling process. Beside discussion of risk mitigation associate to tunnel construction, the developing settlement control and simulations are given to describe the methods of control risk.

scholarly journals Absorption methods of control of technical condition of electrical insulation

2021 ◽  
pp. 45-50
Author(s):  
Ivan Kostjukov
Keyword(s):  
Control Method ◽  
Control Object ◽  
Dielectric Materials ◽  
Technical Condition ◽  
Technical State ◽  
Electrical Insulation ◽  
Short Term ◽  
Informative Parameters ◽  
Test Voltage ◽  
Methods Of Control

The article provides an overview of the most common methods for monitoring the technical state of electrical insulation, based on the applying of absorption phenomena arising in dielectric materials under the influence of DC voltage. The main provisions of the control method based on determining the voltage at the electrodes of the investigated capacitive control object, which is recovering after a short-term discharge of its capacity, are described. The main aspects of the application of the polarization index and the absorption coefficient for determining the technical state of insulation by using the coefficients characterizing the change in time of the current through the dielectric when a constant test voltage is applied to it are analyzed. The advantages of using absorption methods for monitoring the technical state of electrical insulation, first of all, are the ability to carry out testing without the necessity of applying of relatively high test voltages, which greatly simplifies all the necessary technical operations. Such control methods show a significant dependence of the informative parameters used in them on the technical state of insulation on the degree of development of slow polarization processes in the material under study and, therefore, are successfully used to determine the degree of moisture in tested electrical insulation.

scholarly journals Organizational and technological solutions justifying use of non-destructive methods of control when building monolithic constructions of civil buildings and structures

2018 ◽  
Vol 251 ◽  
pp. 05014 ◽  
Author(s):  
Azariy Lapidus ◽  
Alan Khubaev ◽  
Tembot Bidov
Keyword(s):  
Control Method ◽  
Assessment Method ◽  
Expert Assessment ◽  
Mathematical Apparatus ◽  
Industrial Buildings ◽  
Object Parameters ◽  
Non Destructive ◽  
Destructive Methods ◽  
Methods Of Control

The parameters influencing on the use of non-destructive methods of control are considered when building monolithic constructions of civil and industrial buildings and structures. The analysis of the factor influence on the capacity of the method of the non-destructive control with the expert assessment method is made. Based on the qualimetric analysis three the most significant groups of the factors which can influence on the capacity of the use of the non-destructive control method (Pnc) are determined. The mathematical apparatus base is prepared, which characterize the object parameters.

Depth Control of Underwater Robot with Metal Bellows Mechanism for Buoyancy Control Device Utilizing Phase Transition

2013 ◽  
Vol 25 (5) ◽  
pp. 795-803
Author(s):  
Koji Shibuya ◽  
◽  
Yukihiro Kishimoto ◽  
Sho Yoshii
Keyword(s):  
Phase Transition ◽  
Control Method ◽  
Control Device ◽  
Underwater Robot ◽  
Maximum Output ◽  
Depth Control ◽  
Metal Bellows ◽  
Control Devices ◽  
Target Depth ◽  
Buoyancy Control

The ultimate goal of this study is to develop a buoyancy control device that utilizes volume change due to phase transition of material between solid and liquid states. This paper describes the depth control method for an underwater robot fitted with the metal bellows buoyancy control devices that we have developed in this study. Four metal bellows buoyancy control devices are installed on an underwater robot. We first measured underwater robot buoyancy change and found that it agreed roughly with theoretical values. We then checked whether the robot could change buoyancy successively so that the robot rises or sinks as commanded. We then conducted a series of experiments on robot depth control in which if the robot depth is more than a certain distance different from the target depth, control devices are either heated or cooled at maximum output. If such a difference is within the threshold, proportional control is applied to develop output in proportion to the distance to the target depth. Experimental results showed that the underwater robot followed varied target depth with a steady-state deviation of a few cmor so, except in some cases of failure.

Non-Isothermal Fluid Flow in a Continuous Casting Tundish

2010 ◽  
Author(s):  
Amel F. Boudjabi ◽  
Ahmed Bellaouar ◽  
Mohammed Lachi ◽  
Nadim El Wakil
Keyword(s):  
Heat Transfer ◽  
Continuous Casting ◽  
Slag Layer ◽  
Bath Surface ◽  
Isothermal Fluid ◽  
Continuous Casting Tundish ◽  
Control Devices ◽  
Composition Operations ◽  
Metal Jet

Temperature variation phenomena observed inside the metallurgical tundish in the continuous casting is principally due to several factors, high temperature of the ladle metal jet, important thermal losses, heat transfer between molten steel and tundish walls and more still, in contact with the slag layer at bath surface and if necessary cooling or warming in refining composition operations. A numerical simulation using the CFD code “Fluent” is realised. Investigation of heat transfer—which has a great importance in the natural convection and the inclusions floating at slag surface—, is proposed. Results are presented for three arrangements of the tundish, where the interest and role of the control devices is improved.

scholarly journals Rodent Damage and Control in Peanut Fields in India

1987 ◽  
Vol 14 (1) ◽  
pp. 4-6 ◽  
Author(s):  
V. R. Parshad ◽  
C. S. Malhi ◽  
N. Ahmad ◽  
B. Gupta
Keyword(s):  
Arachis Hypogaea ◽  
Zinc Phosphide ◽  
Single Treatment ◽  
Rodent Control ◽  
Chemical Methods ◽  
Tatera Indica ◽  
Arachis Hypogaea L ◽  
Bandicota Bengalensis ◽  
And Control ◽  
Methods Of Control

Abstract Studies were made on the identification, damage and chemical methods of control of rodent pests in irrigated and nonirrigated fields of peanut (Arachis hypogaea L.) at Ludhiana, India. Peanut fields were infested with Bandicota bengalensis, Tatera indica, Rattus meltada and Mus spp., except that B. bengalensis was absent in nonirrigated fields. These rodents reduced peanut yield by an average 3.86%, a loss of 190.18 rupees/ha ($15.12 US). Severe rodent damage was sporadic with a maximum of 18.97% reduction in peanut yield. Rodents inflicted more damage between 80 to 120 days after planting, i. e. during the pod fill stage of crop growth. A single treatment with poison bait at 80 to 90 days after planting with 2.4% zinc phosphide, 0.005% brodifacoum and 0.005% bromadiolone in cereal baits at the rate of 1 kg/ha resulted in 58.07%, 42.26% and 40.88% rodent control, respectively, in nonirrigated fields. In irrigated fields, 58.70% and 67.02% rodent control was achieved with zinc phosphide and brodifacoum baits respectively. Significantly higher rodent control was obtained with 2 treatments of either brodifacoum or bromadiolone than with a single treatment of any rodenticide. Wax blocks containing 0.005% brodifacoum were less effective than cereal baits containing the same rodenticide. Two applications at 10 day interval of either 0.005% brodifacoum or bromadiolone between 80–100 days after planting is suggested for rodent control in peanut fields.

Development of Prototype of Two Axis Gimbal-Type Platform in Underwater

2020 ◽  
Author(s):  
Hoonmin Park ◽  
Hyunjae Lee ◽  
Hongryul Ryu ◽  
Dongho Kim ◽  
Hyunsoo Kim ◽  
...  
Keyword(s):  
Marine Environment ◽  
Pid Control ◽  
Error Compensation ◽  
Precise Measurement ◽  
Control Method ◽  
Working Environment ◽  
Observation Data ◽  
Continuous Observation ◽  
Environment Analysis

Abstract The Bottom-mounted ocean-observation platforms installed on the seabed have been used for marine environment analysis. The role of the observing platform is to collect precise observation data without human assistance. However, their working environment is very harsh so the typical device could not afford to provide easy accessibility during their working period. Existing bottom-mounted ocean-observation platforms have been difficult to collect continuous observation data. Therefore, this paper suggests a new ocean-observation platform for precise measurement of the marine environment. Suggested platform uses a PID control method to be applied for error compensation of each axis of gimbal. To verify the system performance, the experiment was carried out in the air with the external force applied to this system.

Dietetic approaches to organisation of a ketogenic diet in children with epilepsy

2020 ◽  
Vol 18 (6) ◽  
pp. 35-40
Author(s):  
E.A. Pyrieva ◽  
◽  
A.I. Safronova ◽  
M.A. Toboleva ◽  
K.V. Osipova ◽  
...  
Keyword(s):  
Ketogenic Diet ◽  
Ketone Bodies ◽  
Diet Therapy ◽  
Medium Chain Triglycerides ◽  
Considerable Decrease ◽  
Pharmacoresistant Epilepsy ◽  
Calcium Phosphorus ◽  
Modified Diet ◽  
Methods Of Control

The article presents current dietetic approaches to organisation of a ketogenic diet (KD) in children with pharmacoresistant epilepsy. The indications, contraindications, side effects of KD are considered as well as methods of control over patients who receive ketogenic diet therapy, information recourses for it’s application are provided. Characteristics of KDs used in epilepsy are given – the classical, MCT, the Atkins modified diet, and a low-glycemic diet. The role of specialised food products designed for patients who need a ketogenic diet is outlined. The results of studying the actual nutrition of children with pharmacoresistant epilepsy who receive KD are indicative of a considerable decrease, as compared with the recommended allowances, of the levels of vitamins (С, В1, В2, folates, D3) and mineral substances (calcium, phosphorus, magnesium, iron, selenium). The results demonstrate good prospects for a broader application of KD in clinical practice with collaboration of neurologists and dietitians. Key words: children, ketogenic diet, ketone bodies, medium-chain triglycerides, epilepsy

scholarly journals Novel Integrated and Optimal Control of Indoor Environmental Devices for Thermal Comfort Using Double Deep Q-Network

Atmosphere ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 629
Author(s):  
Sun-Ho Kim ◽  
Young-Ran Yoon ◽  
Jeong-Won Kim ◽  
Hyeun-Jun Moon
Keyword(s):  
Optimal Control ◽  
Energy Consumption ◽  
Thermal Comfort ◽  
Control Method ◽  
Environmental Control ◽  
Ventilation System ◽  
Low Energy ◽  
Good Ability ◽  
Low Energy Consumption ◽  
Control Devices

Maintaining a pleasant indoor environment with low energy consumption is important for healthy and comfortable living in buildings. In previous studies, we proposed the integrated comfort control (ICC) algorithm, which integrates several indoor environmental control devices, including an air conditioner, a ventilation system, and a humidifier. The ICC algorithm is operated by simple on/off control to maintain indoor temperature and relative humidity within a defined comfort range. This simple control method can cause inefficient building operation because it does not reflect the changes in indoor–outdoor environmental conditions and the status of the control devices. To overcome this limitation, we suggest the artificial intelligence integrated comfort control (AI2CC) algorithm using a double deep Q-network(DDQN), which uses a data-driven approach to find the optimal control of several environmental control devices to maintain thermal comfort with low energy consumption. The suggested AI2CC showed a good ability to learn how to operate devices optimally to improve indoor thermal comfort while reducing energy consumption. Compared to the previous approach (ICC), the AI2CC reduced energy consumption by 14.8%, increased the comfort ratio by 6.4%, and decreased the time to reach the comfort zone by 54.1 min.

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