scholarly journals Indicators of Violence Levels: Questionnaires and Predictive Mathematical Model

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
E. Leal-Enríquez ◽  
A. R. Gutiérrez-Antúnez
Keyword(s):  
Mathematical Model ◽  
Partner Violence ◽  
Numerical Procedure ◽  
Numerical Data ◽  
Intimate Partner ◽  
Loss Of Control ◽  
Victim Assistance ◽  
Key Factor ◽  
The Mathematical Model ◽  
Health Experts

In this paper, we present, in detail, how a mathematical model that simulates the probable scenarios of intimate partner violence is linked to the application of any questionnaire of domestic violence already in use. This questionnaire assigns a weight of severity to each proposed inquiry for the types of psychological, physical, and sexual violence. We show a numerical procedure that must be performed to obtain the probable scenarios of violence in which the victim is involved, taking as key factor the loss of control of the perpetrator. With the numerical data obtained from the application of the mathematical model, the probable levels of violence that the victim could experience month to month for two cycles of violence are plotted, as well as the behaviors of the probable states of loss of control that the perpetrator would have during the next twelve months. Based on the results obtained, we generated a help table of indicators that could be used by victim assistance centers and/or health experts for decision-making schemes.

scholarly journals Tail-Actuator Propulsion Device for Aquatic Robot

2006 ◽  
Vol 18 (1) ◽  
pp. 89-96 ◽  
Author(s):  
Andrea Manuello Bertetto ◽  
◽  
Maurizio Ruggiu
Keyword(s):  
Mathematical Model ◽  
Numerical Procedure ◽  
Numerical Data ◽  
Operating Principle ◽  
The Other ◽  
Kinematics And Dynamics ◽  
Experimental Characterization ◽  
Fish Propulsion ◽  
Geometrical Dimensions ◽  
Simplified Mathematical Model

In this paper an aquatic device inspired to the fish propulsion is proposed. At the first, the operating principle of the fluidic actuator and its experimental characterization are presented. Then, the results of numerous tests carried out on the integrated tail-actuator device are shown either in terms of thrust exerted or as biomorphism of its kinematics. The tests were run at several driven frequencies with different fins depending on their geometrical dimensions and compliances. On the other hand, a simplified mathematical model of the propulsion system, based on the calculation of the instantaneous tail kinematics and dynamics by means of a numerical procedure, is proposed with the aim of simulating performances either in terms of thrust exerted or kinematics behavior. Finally a discussion about the results obtained and a comparison between experimental and numerical data are presented.

scholarly journals The Mathematical Model of Ice Sheets and the Calculation of the Evolution of the Greenland Ice Sheet

1985 ◽  
Vol 31 (109) ◽  
pp. 281-292 ◽  
Author(s):  
S.S Grigoryan ◽  
S.A Buyanov ◽  
M.S Krass ◽  
P.A Shumskiy
Keyword(s):  
Mathematical Model ◽  
Ice Sheets ◽  
Ice Sheet ◽  
Greenland Ice Sheet ◽  
Numerical Data ◽  
Climatic Conditions ◽  
The Mathematical Model

AbstractAn evolutionary mathematical model of ice sheets is presented. The model takes into account the basic climatic and geophysical parameters, with temperature parameterization. Some numerical data derived from experiments on the Greenland ice sheet are received. At present the Greenland ice sheet is found to be in a state essentially different from a stationary one corresponding to modern climatic conditions.

scholarly journals Aluminum bar cutting optimization for door and window manufacturing

DYNA ◽  
2020 ◽  
Vol 87 (212) ◽  
pp. 155-162
Author(s):  
Ageu Araujo Machado ◽  
João Carlos Zayatz ◽  
Marcos Meurer Da Silva ◽  
Guilherme Melluzzi Neto ◽  
Gislaine Camila Lapasini Leal ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Real Data ◽  
Raw Material ◽  
Process Efficiency ◽  
Computational Time ◽  
Advantages And Disadvantages ◽  
Key Factor ◽  
Material Procurement ◽  
The One ◽  
The Mathematical Model

This study aims to optimize the one-dimensional cutting process of aluminum bars for the production of aluminum doors. Reducing the use of bars and the amount of material that becomes scrap is a key factor in process efficiency, reducing the need for raw material procurement. The mathematical model used considers the size of the bar, the number and size of cuts, the size of the leftovers that can be used and the size of the leftovers that are considered scrap. Based on real data from a company in the aluminum frame segment, the mathematical model was used to simulate three different scenarios. Three different objective functions were used in the simulations, and the results obtained in each scenario were described in order to indicate the advantages and disadvantages of using each objective function. For the instance sizes studied, the model is able to obtain optimal solutions with little computational time.

scholarly journals Numerical simulation of temperature field in the vertical Bridgman method crystal growth

10.30544/130 ◽  
2015 ◽  
Vol 21 (1) ◽  
pp. 25-34
Author(s):  
Srdjan Perišić ◽  
Ahmed Ali Awhida ◽  
Vesna Radojević ◽  
Dejan Davidović ◽  
Dejan Trifunović ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Mathematical Model ◽  
Crystal Growth ◽  
Numerical Data ◽  
Sufficient Accuracy ◽  
The Finite Element Method ◽  
Growth Regime ◽  
Vertical Bridgman ◽  
The Mathematical Model

The mathematical model for heat transfer during the Bridgeman crystal growth, using the finite element method and the obtained result аre presented. Some modifications to the method were introduced in order to incorporate the data obtained experimentally. Solving the model enabled comparison of the experimental and numerical data and to obtain sufficient accuracy. The model was used to calculate the temperature gradient in the sample and the calculated gradient was in accordance with the observed crystal growth regime.

Empathy Impairments in Intimate Partner Violence Perpetrators With Antisocial and Borderline Traits: A Key Factor in the Risk of Recidivism

2016 ◽  
Vol 31 (2) ◽  
pp. 347-360 ◽  
Author(s):  
Ángel Romero-Martínez ◽  
Marisol Lila ◽  
Luis Moya-Albiol
Keyword(s):  
Intimate Partner Violence ◽  
Personality Traits ◽  
Partner Violence ◽  
Conduct Disorders ◽  
Cognitive Empathy ◽  
Intimate Partner ◽  
Borderline Personality ◽  
Borderline Personality Traits ◽  
Empathy Deficits ◽  
Key Factor

Antisocial, borderline, and narcissistic personality traits have been described as characteristics of intimate partner violence (IPV) perpetrators. Furthermore, deficits in cognitive empathy and impairments in emotional decoding processes may at least partially explain conduct disorders and social dysfunction in general. However, previous research has not explored potential associations between empathy deficits and the aforementioned traits or whether they are reflected in recidivism in IPV perpetrators. Accordingly, the main aim of this study was to explore associations between empathy deficits, antisocial, borderline, and narcissistic traits and the risk of recidivism in this population. The sample consisted of 144 IPV perpetrators (mean age = 41 years). High antisocial and borderline personality traits in this sample were associated with a high risk of recidivism, these relationships being moderated by poor empathy skills. Moreover, in IPV perpetrators with both antisocial and borderline personality traits, the risk of recidivism was higher than in those with only one of these traits. In contrast, narcissistic traits were unrelated to the risk of recidivism and impairments in empathy. The results of our study highlight the importance of empathy deficits and may help professionals to develop specific intervention programs focusing on improving empathy skills in antisocial and borderline IPV perpetrators.

FEM based mathematical modelling of thrust force during drilling of Al7075-T6

2020 ◽  
Vol 21 (4) ◽  
pp. 415 ◽  
Author(s):  
Anastasios Tzotzis ◽  
César García-Hernández ◽  
José-Luis Huertas-Talón ◽  
Panagiotis Kyratsis
Keyword(s):  
Mathematical Model ◽  
Finite Element Modelling ◽  
Thrust Force ◽  
Cutting Speed ◽  
Numerical Data ◽  
Machining Processes ◽  
Element Modelling ◽  
Solid Carbide ◽  
Tool Diameter ◽  
The Mathematical Model

Like most machining processes, drilling is affected by many parameters such as the tool diameter, the cutting speed and feed. The current research investigates the possibility of developing a finite element modelling based prediction model for the generated thrust force during drilling of Al7075-T6 with solid carbide tools. A total of 27 drilling experiments were carried out in order to examine the interaction between three key parameters and their effect on thrust force. In addition, simulations of the experiments were realized with the use of DEFORM3D™ software in order to obtain the necessary numerical data. Finally, a comparison was made between the experimental and the numerical results to verify that reliable modelling is feasible. The mathematical model was acquired with the use of response surface methodology and the verification of the adequacy of the model was performed through an analysis of variance. The majority of the simulations yielded results in agreement with the experimental results at around 95% and the derived model offered an accuracy of 5.9%.

Why Did She Do It? College Women’s Motives for Intimate Partner Violence Perpetration

Partner Abuse ◽  
2015 ◽  
Vol 6 (4) ◽  
pp. 425-441 ◽  
Author(s):  
Angela M. Neal ◽  
Kristiana J. Dixon ◽  
Katie M. Edwards ◽  
Christine A. Gidycz
Keyword(s):  
Intimate Partner Violence ◽  
Sexual Arousal ◽  
Partner Violence ◽  
Emotion Dysregulation ◽  
Intimate Partner ◽  
Loss Of Control ◽  
Prevention Programming ◽  
Sexual Perpetration ◽  
Sexual Intimate Partner Violence ◽  
Ipv Perpetration

The goal of this study was to examine young adult women’s motives for engaging in psychological, physical, and sexual intimate partner violence (IPV). Participants were 484 college women in relationships who had engaged in at least 1 form of psychological, physical, or sexual IPV perpetration. Women who reported engaging in psychological and physical IPV typically reported motives of anger, retaliation for being hit first or for emotional hurt, and an inability to express themselves verbally, whereas women who reported sexual IPV perpetration reported motives of sexual arousal, to prove love, and a loss of control. These results suggest that women engage in psychological and physical perpetration for many of the same reasons and that women’s motives for sexual perpetration are somewhat different. These findings have implications for the ways in which interventions are tailored, suggesting that there are likely important factors that need to be addressed for all types of IPV (e.g., emotion dysregulation), and some types of IPV (e.g., sexual) might require tailored prevention and intervention efforts (e.g., education about appropriate ways of expressing sexual arousal and love). These findings also underscore the importance of investigating multiple forms of perpetration when studying motives for IPV and the relevance of motives in the development of IPV prevention programming with young women.

scholarly journals Математическая модель оптимизации проектных характеристик скоростных пассажирских катамаранов

2020 ◽  
Vol 44 (3) ◽  
pp. 46-59
Author(s):  
Keyword(s):  
Mathematical Model ◽  
High Speed ◽  
Rational Design ◽  
Block Diagram ◽  
Socialist Republic ◽  
Continuous Growth ◽  
Passenger Traffic ◽  
Key Factor ◽  
Design Characteristics ◽  
The Mathematical Model

Увеличение объемов морских пассажирских перевозок в Социалистической Республике Вьетнам обусловливает необходимость разработки новых методов и моделей для проектирования конкурентоспособных судов. Этот поиск рациональных проектных решений отвечает современным требованиям экономической и функциональной эффективности, учитывает специфику и региональные особенности страны. Скоростные пассажирские катамараны хорошо зарекомендовали себя в сегменте пассажирских перевозок, так как конструктивные особенности выделяют их на фоне судов других типов. В статье рассмотрена математическая модель оптимизации проектных характеристик скоростных пассажирских катамаранов. Приведены основные аналитические зависимости, составляющие основу математической модели. На примере линии г. Ратьзя–о. Фукуок показаны результаты оптимизации основных проектных характеристик скоростных пассажирских катамаранов, в качестве которых рассматривались скорость хода и пассажировместимость. Ключевые слова: Социалистическая Республика Вьетнам, скоростные пассажирские катамараны, математическая модель проектирования катамаранов, оптимизация проектных характеристик. Continuous growth of marine passenger traffic in Socialist Republic of Vietnam is the key factor for the necessity to develop new methods and models to ensure rational design solutions in line with up-to-date requirements to economic and operational efficiency. As a rule, these models should take regional specifics of Vietnam into account. The high-speed catamarans fully satisfy these requirements as passenger vessels. In this paper the mathematical model for optimization of design characteristics of high-speed passenger catamarans is considered. The block-diagram and analytical dependencies which are the core of the mathematical model are given herein. As an example, results of optimization of design characteristics (speed and passenger capacity) of high-speed passenger catamarans for Rach Giato Phu – Quoc are shown. Keywords: Socialist Republic of Vietnam, high-speed passenger catamarans, mathematical model of catamaran vessel, optimization of design characteristics.

scholarly journals Validation of large eddy simulation of flow behind a circular cylinder

2021 ◽  
Vol 345 ◽  
pp. 00013
Author(s):  
Martin Isoz ◽  
Tomáš Hlavatý ◽  
Václav Uruba ◽  
Pavel Procházka
Keyword(s):  
Mathematical Model ◽  
Circular Cylinder ◽  
Large Eddy Simulation ◽  
Dynamical Behavior ◽  
Cross Flow ◽  
Numerical Data ◽  
Time Resolved ◽  
Eddy Simulation ◽  
Large Eddy ◽  
The Mathematical Model

The flow in the wake behind a circular cylinder in a cross-flow at Reynolds number of 4815 was studied both experimentally and via mathematical modeling. The mathematical model was performed as a Large Eddy Simulation (LES), while the experiments were carried out using the time-resolved variant of the Particle Image Velocimetry (PIV) method. Both the simulation and experiment took into account the dynamical aspects of the studied phenomenon, which enabled a detailed validation of the mathematical model. The overall statistical properties of the simulated flow were validated via comparing the time-averaged measured and computed velocity and vorticity fields. To validate the dynamical behavior, the velocity spectra were examined first. Next, the Proper Orthogonal Decomposition (POD) of the spatio-temporal velocity data was performed on both the experimental and numerical data and a comparison of the obtained energetic modes was carried out. All the performed validations have shown a satisfactory agreement between the simulation and the experiment.

scholarly journals Tactical Analysis Through Objective Data in Football

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Akira Yamanaka ◽  
Hiroshi Otsuka ◽  
Tatsuya Deguchi ◽  
Ken Okihara ◽  
Dota Otsuka ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Team Sports ◽  
Numerical Data ◽  
Objective Data ◽  
Match Analysis ◽  
Model Based ◽  
Video Images ◽  
Different Types ◽  
The Mathematical Model ◽  
Insight Into

<p>Tactical analysis in football has rarely been conducted using a mathematical model with numerical data (although tactical analysis through objective data has been used more often). Therefore, this study establishes principles for tactical analysis in team sports using numerical data, through a mathematical model based on the location of the players and the ball. A competitive match between Sanfrecce Hiroshima (home) and Ehime FC (away) in the third round of the Japanese Emperor’s Cup 2011 was filmed and used for the match analysis. Observations were made by a team analyst as well as extracted from official match records. The main procedure in the research flow was to establish a mathematical offence/defence model based on tactical concepts in football, which was applied for the location of players, which, in turn, was quantified from video images in order to categorise a team’s tactical performance (in relation to attacking or defending). Furthermore, the authors focused on attacking categories and identified different types of passes during a specific period, as well as comparing these findings with an actual match video. The results obtained from the numerical data derived from applying the offence/defence model led to the same overview as the tactical analysis produced by a team analyst. In addition, the results when categorising types of passes (as extracted through the mathematical model) again mirrored those retrieved from an actual match video. This leads to the conclusion that the offence/defence model could provide relevant insight into types of attacks. The data revealed that football tactical analysis can be successfully performed using a numerical model, which might possibly enable automatic tactical analysis of football games without a match analyst.</p>

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