Control Wheel Research Articles

“I’ve Been Hurt Every Single Day Here, You Know:” A Feminist Abolitionist Analysis of Immigration Detention

While gendered violence against women at home, in intimate relationships, and in the workplace is widely acknowledged, the relationship between border control and gendered violence has only recently been addressed, often narrowly. To address this gap, this article examines the United Kingdom immigration detention system through an abolition feminist lens. Drawing on research conducted inside and outside detention sites, experiential knowledge from lived experience and solidarity work, and secondary sources, we highlight the entangled and mutually constitutive relationships between intimate/interpersonal and institutional/state violence. Inspired by Monica Cosby’s Intimate Partner Violence and State Violence Power and Control Wheel, our analysis reveals how immigration detention constitutes a form of racist-gendered state-corporate violence. Importantly, those who travel under the sign women understand this violence as directly linked to the gendered abuses they experienced outside detention. This underscores the inseparability of post-national struggles against carceral border regimes from feminist transformative efforts to eradicate gendered violence.

Design of Hand Gesture Control Wheel Chair

This study designated a wheelchair which can be meticulous using the user hand gesture. The purpose of this research was to come up with a hand gesture powered wheelchair system intended to provide assistance with the use of hand directions, which would allow users to travel efficiently and with greater ease. The system is made up of various electronics components such as the microcontroller, accelerometer, Bluetooth model, ultrasonic sensor, motor driver, among others. The microcontroller is programmed. The transmitter circuit board is made up of accelerometer sensor like ADSL335 which is able to sense three parameters. The microcontroller forms the main part or the brain of the system, and performs most of the functions. The microcontroller sends the readings sensed by the hand to the Bluetooth transmitter. The ultrasonic sensor detected obstacles, also sent the distance measured to the microcontroller. The microcontroller processed the information to the motor driver. The motor driver then powered the motors to either move forward or backward. It was observed that when the system was activated, the movement of the Wheelchair immediately start to follow the orientation of the user’s hand. The wheelchair was able to be perform five (5) different gestures. The gesture follows the range that had been set. However, this range depends on the position of the accelerometer.

Model-Based Analysis of the Accuracy of Tracking Control and Energy Efficiency of a Six-Wheeled Skid-Steered Robot

This article concerns the modeling and motion control of a mobile robot with six independently driven and non-steered wheels. The main research issue is analyzing the influence of the structure of the control system and wheel track on the control accuracy and energy efficiency during robot motion on horizontal paved ground. For this purpose, the kinematic relationships for the robot are discussed and a simplified dynamics model for control applications is developed. The robot’s dynamics model takes into account the most important phenomena of the wheel interaction with the paved ground, including slip. In addition, it is supplemented with a model of the robot’s drive units. Two versions of the control system were adopted for analysis, i.e., with the wheels’ controller only and additionally equipped with a pose controller. Simulation studies were carried out for the developed robot dynamics model and the analyzed versions of the control system in order to investigate the influence of the track width of the wheels and the structure of the control system on motion accuracy and energy efficiency. In order to quantitatively compare the results for the analyzed solutions, quality indices were introduced. The results of the simulation research indicate the influence of the track width of the wheels on the accuracy of motion when using the wheels’ controller, as well as its impact on energy efficiency. Moreover, they show that it is possible to significantly improve the accuracy of motion by using an additional pose controller, which allows limiting the impact of the non-optimal geometric parameters of the robot and the slip of the wheels on trajectory tracking errors. However, the addition of the pose controller does not significantly affect the energy efficiency during the robot’s motion, which may be even worse in this case.

Voices Unheard, Stories Untold: An In-Depth Phenomenological Exploration of Workplace Bullying Among Indian Primary School Teachers

Workplace bullying adds significantly to toxicity in workplaces. The present phenomenological study aims to unravel the experiences of primary school teachers who have faced bullying at work. Such studies in India are still sparse, and in-depth qualitative examination of the target’s experiences provides deeper insight into their view regarding anomalous behaviours and bullies. Semi-structured interviews of seven teachers were conducted and analyzed using Interpretative Phenomenological Analysis. The analysis resulted in three themes: “Workplace dynamics,” “I can tell what their problem is,” and “Coping with the problem.” The identified acts were linked to the extant model (Duluth model) describing the power control wheel at work. The researchers interpreted the bullied teachers' lived experiences to construe the affected teachers' behavioural, perceptual, and emotional responses. The findings reaffirm the existence of bullies in a teaching environment. Teachers with longer years of service acted as bullies in all the cases, and two participants just discussed Principal-on-teacher bullying. The study discusses how identified bullying acts can be categorized into themes of the power-control wheel at work. Studies on bullying in cultures with high power distance are limited and provide limited evidence on how the bullying behaviours are comparable to the acts constituting other abusive relationships.

Potential Isoform Interactions Between GRs May Modulate Hippocampal Plasticity Under Different Stress Paradigms

This paper explores the potential interactions between glucocorticoid receptor (GR) isoforms in modulating hippocampal plasticity under varying stress conditions. The relationship between GR activity and hippocampal neurogenesis is complex, with evidence pointing to an inverted U-shaped association. We hypothesize that the hippocampus may differentially express GR-α and GR-β subtypes to fine-tune glucocorticoid signaling and neurogenesis. To test this, we propose utilizing CRISPR-Cas9-mediated genetic editing to generate mouse models with selective GR subtype expression in hippocampal dentate gyrus neurons. We would then expose these mice to controllable (wheel running) and uncontrollable (noise, social Defeat) stresses and quantify GR subtype expression using an advanced NanoBiT protein-interaction assay. The findings would provide insights into the nuanced roles of GR isoforms in mediating stress effects on neuroplasticity. This could inform potential interventions targeting GR balances for stress-related disorders.

Intimate Partner Violence and its Realistic Projection: A Critical Study of Contemporary Indian Cinema

Despite an array of new statutes designed to safeguard women and punish abusers, Intimate Partner Violence (IPV) continues to snuff out many lives leading to infringement of fundamental human rights and serious physical and mental health consequences. Like other societal phenomena, gender-based violence particularly IPV alongside its resistance, is prominently depicted in contemporary Indian cinema. By evaluating three films in light of a social responsibility paradigm which relies on realistic representation as its basic dimension, this research investigates how accurately IPV is portrayed across contemporary Indian cinema. The behavioural elements of the widely recognized The Duluth Model and Power and Control Wheel will be applied to determine realistic representation of IPV in each particular movie. This study focuses on films like Jasmeet K. Reen’s Darlings, Charukesh Sekar’s Ammu and Vipin Das’s ‘Jaya Jaya Jaya Jaya Hey’ which premiered in year 2022 in Hindi, Telugu and Malyalam cinema respectively. The results demonstrate significant variations in the measure of social responsibility indicating that contemporary Indian cinema may play a significant role in realistic projection of IPV

From Lifeline to Weapon: The Role of Companion Animals in the Lives of Entangled Victims

Abstract Growing evidence suggests that companion animals play a significant role in the lives of victims of domestic abuse. The aim of this paper is to extend this research to include a broader range of domestic abuse victims. Drawing from 45 face-to-face interviews with participants who identify as “entangled victims,” this research evidences a complex and varied relationship between entangled victims and companion animals. In this light, policy changes regarding domestic violence victimization are encouraged. Specifically, changes to the power and control wheel, conceptualization of who constitutes a domestic abuse victim, and intervention strategies recognizing that companion animals can be used as both lifelines and weapons.

Domestic Violence: The Power and Control Wheel in Abir Mukherjee’s Death in the East

Domestic Violence: The Power and Control Wheel in Abir Mukherjee’s Death in the East

Endoscopic measurement of the size of gastrointestinal polyps using an electromagnetic tracking system and computer vision-based algorithm

PurposePolyp size is an important factor that may influence diagnosis and clinical management decision, but estimation by visual inspection during endoscopy is often difficult and subject to error. The purpose of this study is to develop a quantitative approach that enables an accurate and objective measurement of polyp size and to study the feasibility of the method.MethodsWe attempted to estimate polyp size and location relative to the gastro-oesophageal junction by integrating data from an electromagnetic tracking sensor and endoscopic images. This method is based on estimation of the three-dimensional coordinates of the borders of the polyp by combining the endoscope camera position and the corresponding points along the polyp border in endoscopic images using a computer vision-based algorithm. We evaluated the proposed method using a simulated upper gastrointestinal endoscopy model.ResultsThe difference between the mean of ten measurements of one artificial polyp and its actual size (10 mm in diameter) was 0.86 mm. Similarly, the difference between the mean of ten measurements of the polyp distance from the gastroesophageal junction and its actual distance (~ 22 cm) was 1.28 mm. Our results show that the changes in camera positions in which the images were taken and the quality of the polyp segmentation have the most impact on the accuracy of polyp size estimation.ConclusionThis study demonstrated an innovative approach to endoscopic measurements using motion tracking technologies and computer vision and demonstrated its accuracy in determining the size and location of the polyp. The observed magnitude of error is clinically acceptable, and the measurements are available immediately after the images captured. To enhance accuracy, it is recommended to avoid identical images and instead utilise control wheels on the endoscope for capturing different views. Future work should further evaluate this innovative method during clinical endoscopic procedures.

Continuing Coercive Control After Intimate Partner Femicide: The Role of Detection Avoidance and Concealment

Links between IPF and homicide concealment have been observed but not explained. We theorize IPF perpetrators use concealment to continue coercively controlling investigators, children, courts and finances post-IPF. We compare abuse in the relationship and surrounding IPF in five diverse cases. Facilitated by concealment, offenders use versatile, subtle and overt tactics to extend control post-IPF. They capitalize on opportunities for concealment and regaining control, sometimes without other benefits. Tactics are akin to those employed previously, aligning with the power and control wheel. Concealment allows offenders to dominate the death narrative and assists with remaining unaccountable.

The Design of Electric Fire Engine

The electric fire engine is based on the single chip microcomputer as the control core. In order to better realize the fire extinguishing function, the latest electric fire engine has added the tracking module, wireless transceiver module, etc., to realize the intelligent fire engine to detect the fire source and extinguish the flame. This design combines the principle of single chip microcomputer with the hardware and software circuit program to realize the function of automatic tracking and fire extinguishing, without the fire personnel risking their lives to carry out on-site operation. This kind of electric intelligent fire truck adds some practical small functions, brings us a lot of convenience, can better serve human beings. The main model of this design is a small toy car model with universal wheel and motor control wheel. The chassis is installed with a variety of sensors with different functions to achieve the purpose of moving forward and backward, steering and avoiding obstacles and eventually extinguishing the fire source. At the same time, the car can also realize wireless remote control. By comparing the shortcomings of the traditional fire truck, some improvements are made, the circuit diagram of intelligent control is designed, and the method of wireless control car for fire fighting is explored with the combination of practice and thinking, so as to further improve the fire truck and make it intelligent. The main purpose of this design is to reduce the fire casualties and improve the need for fire personnel to take the risk of life operation of the traditional fire truck function. Its advantages are automatic tracking, avoidance of obstacles, wireless control, measuring the source of fire.

Fixed-Time Constrained Model Predictive Sliding Mode Control of Spacecraft Simulator

In this article, two dual-loop control methods are proposed for attitude control and reaction wheels momentum management of the spacecraft simulator by assimilating the advantages of sliding mode and model predictive control (MPC). In the first method, by utilizing the high accuracy and constrained features of the MPC, an optimal controller is designed in the inner loop. MPC drives the angular velocity to the desired value while keeping the reaction wheel velocity to a small region near the origin, considering the constraints of the actuators. Furthermore, based on the fixed-time terminal sliding mode (TSM) the proper angular velocity is produced in the outer layer of this composite controller for the MPC part. In the second method, contrary to the first one, in the exterior loop MPC and in the interior loop finite-time TSM have been designed. The incorporated twofold nonlinear controllers’ policy insures a good dynamic and robustness against external disturbances. The high yielding of the control algorithms has been analyzed by simulation and experimental validation utilizing MATLAB software with real-time connection based on LabVIEW.

Uncharted Violence: Reclaiming Structural Causes in the Power and Control Wheel

Uncharted Violence: Reclaiming Structural Causes in the Power and Control Wheel

Participation of aeromedicine specialists in complex forensic medical examination in aviation accidents

The problem of flight safety and aviation injury were considered, data on aviation accidents in Civil aviation were shown, the main causes of aviation accidents were presented: technical failure, difficult meteorological conditions, deficiencies in flight organization and «human factor». The conditional classification of aviation injury was presented. Detection of primary injuries is especially important for aeromedicine (head impact on dashboard, bone fracture at the ankle, «loss of vital space», laceration between 1st and 2nd fingers from the control wheel), that determine the pattern of pilots' actions in an emergency situation. A three-link flight medical support system was remained to prevent flying under the influence of alcohol, drugs and psychoactive substances. The Department of Aerospace Medicine developed the algorithm of pilots' examination suspected of using toxic substances. The materials of pilot's psychological examination after an aviation accident in the state of posttraumatic stress disorder are presented.

TRANSPORT AND TECHNOLOGICAL MODULE WITH ELECTRIC WHEEL DRIVE

Agriculture of the Russian Federation suffers huge losses due to the lack of the necessary equipment to work on soils with low load-bearing capacity. As a result, harvesting of winter crops takes more than 40 days, and crop losses amount to 42 percent. When applying fertilizers, about 40 percent of the soil surface is compacted by the wheels of agricultural machinery. Compaction of the soil leads to the appearance of large and dense blocks of earth during plowing. Tractors of traction classes 1,4-5 are used as part of the tractor fleet of peasant farms. Such a nomenclature of tractor types leads to additional costs associated with low annual loading of tractors, over-compaction of soils, tractors of high traction classes. (Research purpose) The research purpose is justifying the use of a transport and technological module with an electric wheel drive. (Materials and methods) Gave a schematic diagram of a modular power-technological means and a kinematic scheme of the wheel drive of a transport and technological module. (Results and discussion) We have developed a transport and technological module with an electric drive of the driving wheels from the generator, which in turn rotates due to the tractor power take-off shaft connected by a cardan transmission. It was determined that the electronic control unit and wheel speed sensors are responsible for the necessary kinematic correspondence between the driving wheels of the tractor and the transport and technological module. It was found that this eliminates the need for a synchronous power take-off shaft on the tractor and, as a result, makes the technological module universal. (Conclusions) It was shown that the use of a transport and technological module with an electric wheel drive serves as an effective way to solve the problem of ballasting and makes it possible to improve the technological properties of a second-generation tractor. It was stated that the use of a transport and technological module with an electric wheel drive will allow the tractor to be used to perform transport work requiring a large traction force on soils with low load-bearing capacity, such as the transportation of forests, manure in the spring and autumn thaw and others.

До порівняльної оцінки триланкових автобусів різних компонувальних схем за стійкістю руху

The article develops a mathematical model describing the movement of a three-link articulated bus (two-axle bus and two single-axle trailers), further ТAВ, as a four-mass system, taking into account the control wheel module of the bus. The system allows to study the influence of the design parameters of the bus and trailers on the stability of the ТAВ. The object of the study is the stability of the articulated bus with drive either on the axle of the bus or on the axle of the first trailer. The purpose of the work is a comparative evaluation of articulated buses with drive either on the bus axle or on the axle of the trailer in terms of stability. Research methods – mathematical modeling of the stability of the movement of a three-link articulated bus (two-axle bus and two uniaxial trailers) with drive either on the bus axle or on the axle of the first trailer. As a result of the study, it was found that at the selected values of the design parameters of the ТAВ, the critical speed when applying traction to the bus axis was 31.19 m / s, which exceeds the maximum speed of its movement. When implementing traction on the axis of the trailer, the loss of stability of circular stationary modes is realized at values of 0.08 <alpha <0.09 (alpha – coefficient determining the share of normal reaction of the bearing surface on the wheels of the bus or trailer driving wheels), and the loss of stability of rectilinear motion – at alpha = 0,0815. The critical velocity in this case is vkp = 12.34 m / s. Analysis of the conditions of static stability of the ТAВ during the implementation of traction on the axis of the trailer showed that the value of the drag coefficient does not affect the critical speed (not included in the expression of critical speed), and the value of rolling resistance coefficients on the first and second axles slightly affects the critical speed . and a critical value of the alpha parameter that determines the amount of traction. At the same time, even with optimally selected stiffness and layout parameters, the critical speed of articulated buses does not exceed 12.5 m / s, that is, such buses need a special system of opposition. Keywords: articulated bus, stability, critical speed, traction force, driving mode, trailer, support surface reaction.

Development of a single row animal drawn groundnut digger for smallholder groundnut farmers in Sudan Savannah of Nigeria

Harvesting groundnut is a serious problem in the Sudan Savannah of Northern Nigeria. The small- and medium scale farmers harvest their groundnuts manually using traditional tools such as hoe. This practice is laborious, time-consuming, and leads to pod losses due to inefficient groundnut harvesting implement. In addition, the tractor-mounted groundnut harvesters are too expensive for these farmers to acquire. In view of the aforementioned, problems, a prototype of an animal-drawn groundnut digger was developed considering the agronomical and functional requirements for digging groundnut crops. The major components of the groundnut digger include a cutting blade, depth control wheel, frame, handles, and draft pole. A pair of bullocks pull the groundnut digger. The outcome of this research study could be used in reducing the drudgery involved during the digging of groundnut from the soil. The implement would also reduce pod losses, and boost agricultural mechanization during groundnut harvesting operations in the Sudan Savannah of Nigeria.

Design and Robust Control of a Precise Torque Controllable Steering Module for Steer-by-Wire Systems

Steer-by-wire (SBW) system has been introduced to reduce the number of parts in a vehicle by eliminating the mechanical link between the steering wheel and the road wheel. Even though intensive research has been conducted on the SBW system, the performance of the actuator system that provides the desired steering feel still needs improvement. Therefore, this article presents a compact size torque controllable steering wheel module for the SBW system, where the actuator that provides the steering feel to the driver is modularized with the gear mechanism and the spring. The steering torque sensing mechanism is compactly integrated by placing the spring inside the gear mechanism. Thanks to the advantage in the torque measurement and control ability by the spring mechanism, high gear-ratio transmission can be employed in the proposed module, which can also address the low inherent mechanical impedance problem that may cause fail-safety issues in the SBW system. To enhance the impedance rendering performance of the proposed module, an internal model compensator which is composed of inertia and friction compensation is applied. The kinematics, statics, and dynamics of the proposed module are theoretically analyzed, and a model-based control algorithm is proposed based on this analysis result. Finally, the increase in the inherent impedance and the torque control performance of the proposed module are verified through experiments.

Research on Direct Yaw Moment Control of Electric Vehicles Based on Electrohydraulic Joint Action

To solve the problem of lateral instability of the vehicle caused by insufficient lateral force of the tires due to the insufficient torque provided by the motor to the tire when the vehicle turns sharply or avoids obstacles in an emergency, a layered control method is used to design a lateral stability control system. The upper decision layer selects the yaw rate and the sideslip angle of the center of mass as the control variables and uses the joint state deviation of the yaw rate and the sideslip angle of the center of mass and the rate of change of the deviation as the input of the sliding mode variable structure controller to calculate the additional yaw moment required to maintain vehicle stability. The lower torque distribution layer realizes the distribution of torque through the electro-hydraulic coordinated control method: the torque distribution rule based on real-time load transfer calculates the torque corresponding to the control wheel and generates the torque through the hub motor and transmits it to the wheel. When the torque output from the motor cannot provide sufficient torque for the vehicle, hydraulic braking is used as a compensating control, and the difference between the required yaw torque and the motor-generated yaw torque is used as the required torque for hydraulic control to calculate the wheel cylinder pressure required to brake the wheels. Based on the joint simulation model of MATLAB/Simulink and Carsim, the sine and double shift line working condition are selected for stability simulation experiments. From the simulation results, it can be seen that the yaw rate and sideslip angle of the center of mass of the vehicle with sliding mode control and electro-hydraulic coordinated control almost coincide with the ideal value curve, which are both smaller than the output parameters of the uncontrolled vehicle. From the perspective of the motor output torque, compared with pure motor control, the effect of electro-hydraulic coordinated control is better, and the hydraulic system can compensate for the braking torque in time and enhance the lateral stability of the vehicle. The designed control strategy can make the yaw rate and the sideslip angle of the center of mass of the vehicle follow the reference value better, which can effectively avoid the vehicle sideslip and instability and improve the vehicle yaw stability and driving safety. However, due to the limitations of experimental equipment, the proposed method could not be applied to the real vehicle test. The real vehicle test can better test the control effect of the proposed method.

Research on long-wheelbase vehicle path tracking control based on optimal heading angle

Path tracking control technology is a hot topic in the research of intelligent vehicles. It is an important link to realize intelligent transportation to solve the problem of path tracking control for long-wheelbase vehicles. Aiming at the problem that the vehicle body of long wheelbase is prone to collision with the surrounding environment due to the influence of the vehicle axle length in the process of turning, the overall deviation model of vehicle wheelbase and reference path is creatively proposed, and the optimal heading angle of long-wheelbase vehicle in the process of turning is determined by solving the maximum value of the overall deviation model. The MPC path tracking controller is established based on the deviation between the heading angle and the actual vehicle. Eventually established more than a typical working condition in MATLAB and TRUCKSIM joint simulation, to verify the proposed algorithm not only has realized the long-wheelbase vehicle path tracking control and front wheel position closer to the reference curve, effective in reducing long-wheelbase vehicle steering wheel swept area, in the process of reducing long-wheelbase vehicle steering and road environment in the process of collision probability. It improves the trafficability of long-wheelbase vehicles in narrow areas.