bluuebunny/crossref_metadata_2025_split huggingface dataset:
Friction induced heating properties of the polyamide/steel type contacts
Authors: Lates M T 
Published: August 2020

Abstract
The endurance and the life time of the mechanical transmissions are highly influenced by the functioning conditions and, not at least, by the materials that they are manufactured from. The increase of the endurance and functioning life time, corroborated with a friendly impact with the environment, is one of the main aims of the worldwide research areas of today. According to this, the development of new materials characterised by low costs and high endurance represents one of the solutions obtained by the specific scientific research. The paper investigates the friction induced heating properties of the polyamide/steel type contacts by considering dry friction conditions. It is studied the contact between a steel made pin and a PA46 and PTFE added PA46 polyamide made disk, under different testing conditions, depending on the rotational speed of the disk and the normal force, at the environmental temperature. The tests are achieved on a tribometer equipped with a pin-on-disc module and, as output, the friction coefficient is measured. Due to the friction is developed a heating of the local contact area. The heat is calculated according to the measured friction coefficient, the normal load and the relative sliding velocity. Finally there are given conclusions regarding the friction induced heating properties of the tested materials.
Study of Vulnerabilities in Designing and Using Automated Vehicles based on SWOT method for Chevrolet Camaro
Authors: Bec P , Borzan A I , Frunză M , Băldean D L , Berindei I 
Published: August 2020

Abstract
Travel sickness of the passenger, lack of human control over driving, high level of complexity in construction and programming, possibility of technical failure, limited or no driving engagement are just some of the possible vulnerabilities when using an automated or an autonomous vehicle. There are also important benefits and clear advantages such as more time for relaxing, resting, sleeping, reading, or working during the travel. Therefore is a “must”, to study the process of designing and using automated vehicles in order to outline vulnerabilities which may provide the mitigating solutions. As majority of the studies regarding vulnerabilities of the automated vehicles consist in fundamental research investigations a SWOT analyse of vulnerabilities in designing and using autonomous cars is thus necessary. The present work investigates methodological and designing aspects for researching the vulnerabilities in the process of developing and implementing automated driving, based on SWOT approach, simulation tools, practical measurement, experimental testing, sampling, graphical modelling, programming, and ethical considerations. Moreover, some aspects of the SWOT method led by multiple engineering and ethical problems are brought up and highlighted. Part of the data from conducted research concerning the designing and using autonomous vehicles made in a dynamic-based driving environment and with a real car are also applicable in sustaining the arguments.
The use of finite element analysis in studying deformations of parts clamped in machine tool devices
Authors: Stánáșel I , Tocuț P D , Veres R 
Published: August 2020

Abstract
Increasing the productivity and quality of products while reducing production costs are the main objectives of manufacturing companies in the market economy. For companies that produce parts using cutting processes, these objectives are strongly influenced, among other factors,by the devices used during the manufacturing process. Devices must allow the clamping of workpieces to be done in a short period of time, to have simple construction, to be cheap while positioning and installing errors to be minimal to ensure that the parts correspond to the manufacturing documentation. The calculation of clamping errors of workpieces and devices involves complex analysis, therefore in order to accurately determine these errors, data obtained from experiments, sometimes costly and difficult to be done, are used. This paper presents the clamping force calculation of a prismatic part, as well as the study of elastic deformations that appear by clamping it in the device, using finite element analysis.
Implementation in MATLAB Simulink of a basic electric vehicle
Authors: Moldovanu D 
Published: August 2020

Abstract
In order to have a better understanding of influencing factors when designing an electric vehicle, the author implemented a model in MATLAB Simulink of a basic electric vehicle taking into consideration several factors, with room for improvements and addons to further studies. The purpose was to have a basic model for teaching. The model takes into consideration the basic aerodynamics of the vehicle, the electric motor (implemented via transfer function), the vehicle velocity calculation from the sum of acting forces and validation of the model. Validation of the model was done by comparing the output data like vehicle velocity with the real measurements done by the manufacturer itself. After the validation, a PI controller was implemented, and two instances were compared. The author considers that students should learn by doing, especially when simulation-based design is easy to understand.
Numerical analysis of the influence of the relative position of the drone’s rotor inside the nacelle on the airflow dynamics
Authors: Sirca A A , Mariasiu F , Varga B O , Morariu S 
Published: August 2020

Abstract
The use of drones in different economic sectors has become a usual thing at present, being present in a varied and diverse range from a constructive point of view. A special attention is given for agricultural sector where drones can be used for: plant protection and pest control, vegetative crop surveillance, disease and pest estimation, surveillance, etc. However, the big problem that characterizes the performance of a drone remains the flight autonomy, autonomy directly related to the drone’s own weight and the configuration of the propulsion system. The paper aims to use computerized numerical analysis methods to study the effect of the relative positioning of a drone’s rotor, inside the nacelle, to characterize (and study) the flow characteristics of the airflow. The parameters considered in the study for the comparative evaluation of the research hypothesis are related to the parameters that characterize the dynamic flow of airflow (airspeed and pressure). Based on the results obtained the researches can be further developed by modifying the geometric construction of the rotor nacelle in order to optimize the flow of airflow used for crops’ spraying process.
Study on the improvement of the vehicle deceleration signalling system
Authors: Moraru G M , Popescu L G 
Published: August 2020

Abstract
Our paper presents a study regarding the improvement of the vehicle deceleration light signalling system. Based on global statistics on the number of road accidents caused by non-compliance with the safety distance and a market research on the availability of purchasing an extra option to allow drivers to be informed about the speed reduction of the vehicle in front, we have applied the Product Life Cycle Management (PLM). For this purpose, we made two market researches. Based on the results of the primary market research and the technical solutions currently in place, a new market research was carried out through an opinion poll. All the results of the opinion polls were discussed in a brainstorming session, which was attended by representatives of automotive companies, representatives of academia and professional drivers. At the end, we have demonstrated the possibility of developing a new product that aims to reduce road accidents caused by rear-end collisions. The working method, proposed has led to the need to find new constructive solutions and ways to apply them.
Data acquisition for medical devices
Authors: Veres R , Feier B C , Ilea S , Bohm-Revesz G 
Published: August 2020

Abstract
Following the path of the powerful evolution in many fields, engineering and medicine are converging to a healthy collaboration. Engineering, as a profession, is a practising one, and it is based on modifying and harnessing the three fundamental resources of the known world: information, energy and materials. Delivering solutions using the latest technologies and also trying to innovate for a better world, the continuous advancement of methods and many other improvements are focusing on helping and developing new ways to have better results. Medicine, with its many fields, is going hand in hand with this exponential growth. One method used in engineering to study and characterize different processes or phenomena is the acquisition and digital processing of data. With the development of computational techniques, it became possible to capture biological data, radiography and tomography being two examples that allow the reconstruction of images that are useful for diagnosis and establishment of treatment. In the following paper, methods known in the industry are presented and related to different procedures used in this collaboration between engineering and medicine.
Analysis and improvement of freight transport using software products
Authors: Ință M , Bădescu M , Purcar C 
Published: August 2020

Abstract
The purpose of the paper is to provide certain solutions to improve freight operations within a company. Nowadays, information technology occupies an important place and computer programs facilitate work in all areas of activity.
With the help of these tools that record important data related to the company’s activity and operations management clearly and concisely, the company’s management easily obtains answers to essential questions. After a critical analysis of the main problems faced by the transport company, the four most important problems to be solved are selected. Based on these, the most suitable software is selected for the company after customized consultation for the best solutions of these problems. There are presented the structure of this software and also the advantages brought after its implementation in the company. Among the most important are improve communication within the company, cost reduction through efficient management of truck supplies and rigorous organization of space in trucks. The software can be tested and supplemented at any time with other suitable sections.
Artificial Intelligence Applications in Autonomous Vehicles: Training Algorithm for Traffic Signs Recognition
Authors: Dursun C , Erdei T I , Husi G 
Published: August 2020

Abstract
As the last point of autonomous vehicle development, these vehicles are being evolved by most of the car manufacturing companies, which increases the need for novel image recognition and automation solutions. This paper presents autonomous driving for vehicles at the stage of level 2 (partial Automation; the vehicle can perform steering and acceleration, though the human driver still monitors all tasks and can take control at any time). YOLO (You Only Look Once), is a Python-based image processing algorithm that was used to achieve the goals. This algorithm is extremely useful due to its real-time capabilities. A new data set was gathered using miniature signs, and a Python script was developed to label these newly trained objects. The algorithm draws bounding boxes around the object with object name and the rates of accuracy. The created system performs well, with further plans to improve it, and apply it in a simulated/modelled environment.
Static analysis of a vehicle suspension with leaf springs and reaction bars
Authors: Alexandru C 
Published: August 2020

Abstract
The work approaches the static analysis of a suspension mechanism with leaf springs and reaction bars used for motor vehicles. The reaction bars are used for compensating the twist of the springs into an ‘S’ shape, a phenomenon that occurs in the classic suspension system with soft leaf springs during hard acceleration or braking. The virtual prototyping software package ADAMS is used for modelling and simulating the suspension system. The static analysis results reveal the improved behaviour of the suspension system with reaction bars relative to the classical leaf spring suspension system.
Research in the field of vibration of automotive systems
Authors: Stanescu M , Ionica V , Geonea I , Miritoiu C , Bolcu A 
Published: August 2020

Abstract
The aim of the research is to improve knowledge about the behaviour of materials and structures, to develop models and tools useful in the process of design of structures and machines and to capitalize on a technical culture in terms of analysis, design and manufacturing methodologies. We also set out to show the influence of which types of vibrations have an effect on the operation of the crankshaft mechanism of a car engine, as well as their influence on the operation of the camshaft system, all of which are taken into account in any design process in this field. The generalization of the theory of elasticity and the dynamics of viscous fluids led to the creation of the linear theory of viscos-elasticity, the bodies with such a behaviour obeying the principle of overlapping Boltzmann. Thus, mechanical models were built consisting of spring and damping systems, the springs describing the elastic properties of the body, and the dampers on the viscous ones.
Opportunities, risks and challenges for actual key players of commodities production into the new wave of industry 4.0
Authors: Simion L C , Avasilcai S 
Published: August 2020

Abstract
The actual dymanic of the industrial wave created by the concept Industry 4.0 is streaming a serial consequences for the main market consumers which are the direct beneficiaries of comodities or daily consuming goods of food,automotive,gadgets and textile/garments industry.Upon the actual researches available from Aachen University and World bank statistics as Birnabaum report, if many of the products which belong to food and textile are defined by standard parameters, so far less dependable of human working factor as direct making of product,the ready made garments production which now is more to be confused with fashion industry,is crossing a period of high challenges to be solved, fighting with the risks to be shrinked until disappearance.The key players which are involved in the whole commodities industry could be defined as the final customers or consumers looking for a permanent variety of items(1),main suppliers of production means(2) and in between we find the producer(3).This one need to handle the pressure of low market prices, frequent economic downturns and motivation of their main resource which are the people either defined as “blue collars” or “white collars”.
Towards synchronizing radio communication of In-Vivo nanorobots
Authors: Dolev Shlomi , Narayanan Ram Prasadh , Scheideler Christian 
Published: August 2020

Abstract
Biomedical tasks in a physiological medium (blood) by nanoscopic programmable matters can be coordinated and executed efficiently by realizing a communication channel to and from the outside of the body. In this paper, we discuss the feasibility of self synchronized radio communication between nanorobots in the physiological medium. We present a magnetic-based method for synchronization, analysis, and a simulation for a previously designed carbon nanotube (CNT) based cantilever device, oscillating due to an electrostatic force to emit radio signals. A magnetic field can modify the electrostatic force, which induces the communicating cantilever device. A resultant magnetic field emitted from every nanorobot to its neighbors is suggested as a means for self-synchronization, where the sum of mutual influences gradually self synchronize the radio signals to form an in-phase higher amplitude strong signal. In another design, an external magnetic field is applied for a long enough period, assisting in establishing synchronization among the nanorobots. The radiofrequency enabling this communication is unlikely to affect the attached tissue due to their physical dimensions designed to conform to the Medical Device Radiocommunications Service (MedRadio) specifications.
OSNR and dispersion tolerance of FWM based optical carrier recovery scheme
Authors: Alahakoon Sachinthani , Munasinghe Dushani , Samarakkody Gresha S , Weerasuriya Ruwan 
Published: August 2020

Abstract
In this paper we demonstrate the Optical signal-to-noise ratio (OSNR) and Dispersion characteristics of Four-Wave Mixing (FWM) based optical carrier recovery scheme for a 10-Gb/s nonreturn-to-zero binary phase-shift-keyed input. The performance was evaluated by measuring the linewidth of the recovered carrier against different OSNR and accumulated dispersion values and recording the eye diagrams. The system characterization will enable new avenues of using the FWM based carrier recovery system in phase-sensitive amplification and heterodyne detection.
Party campaign strategies in Ghana: Rallies, canvassing and handouts
Authors: Brierley Sarah , Kramon Eric 
Published: August 2020

ABSTRACT
Political parties use different methods—such as holding rallies, door-to-door canvassing, and distributing gifts—to mobilize voters during election campaigns across Africa. But how do parties choose which approach to use in each constituency? We propose that parties prefer to hold rallies in core constituencies, and to use targeted strategies—canvassing and handouts—in swing and opposition districts. However, opposition parties may not have sufficient resources to pursue such a strategy. Ruling parties have the dual advantage of being in a strong financial position, and having the ability to target core voters with state benefits between elections. Using post-election survey data from Ghana’s 2012 election, we show that the ruling party canvassed the most in districts where they were electorally weak and concentrated rallies in their home constituencies. In contrast, the opposition party focused all of its efforts in its home districts. The results highlight how incumbency status shapes parties’ campaign behaviour. They also suggest that ruling parties can combine core and swing voter targeting in different stages of the electoral cycle.
BAP1-Mutated Clear Cell Renal Cell Carcinoma
Authors: Gallan Alexander J , Parilla Megan , Segal Jeremy , Ritterhouse Lauren , Antic Tatjana 
Published: August 2020

Abstract

Objectives
While aberrations in the VHL gene and chromosome 3p resulting in clear cell renal cell carcinoma (CCRCC) are well established, we know that additional mutations in chromatin remodeling genes PBRM1, SETD2, and BRCA1-associated protein 1 (BAP1) contribute to pathogenesis in some cases. Given the known aggressive clinical behavior of BAP1-mutated CCRCC, we sought to define the pathologic phenotype of BAP1-mutated CCRCC.

Methods
We identified 14 cases of molecularly proven BAP1-mutated CCRCC and investigated their clinicopathologic features.

Results
BAP1-mutated CCRCC frequently showed papillary, tubulopapillary, or expanded nested architecture; demonstrated granular to diffusely eosinophilic cytoplasm with prominent eosinophilic globules; and contained high-grade nuclei. This morphology demonstrates significant overlap with Xp11 translocation renal cell carcinoma (RCC). Immunohistochemistry notably demonstrates loss of BAP1 expression in almost all tumors, in addition to strong p504S expression. A conventional CCRCC component was frequently present adjacent to the characteristic BAP1 areas and showed retained BAP1 expression and only patchy p504S. Approximately two-thirds of BAP1-mutated CCRCCs were stage pT3, renal vein invasion was common, and 50% developed metastases.

Conclusions
Herein, we describe the histologic and immunohistochemical findings in BAP1-mutated CCRCC, which has important implications for utilization of molecular testing, prognosis, future therapeutics, and distinction from other RCC subtypes such as Xp11 translocation RCC.
Transseptal puncture for ablation of atrial fibrillation in a patient with an implanted atrial flow regulator: a case report
Authors: Biller Cornelia , Filipovic Karlo , Lüker Jakob , Steven Daniel 
Published: August 2020

Abstract

Background
Atrial flow regulator (AFR) (Occlutech, Helsingborg, Sweden) are self-expanding, circular devices. A flexible waist in the centre connects the two discs and has a centrally located shunt.

Case summary
We report a case of an 80-year-old woman undergoing a repeat left atrial ablation for persistent atrial fibrillation with an implanted AFR. The AFR was implanted 1 year prior to the procedure for heart failure with preserved ejection fraction as part of the AFR-PRELIEVE trial. A single, fluoroscopy-guided, transseptal puncture was performed infero-posterior to the device, allowing the positioning of the mapping (LASSO® 20 mm, Biosense Webster, Irvine, CA, USA) and ablation (Thermocool Smarttouch SF, CARTO®, Biosense Webster, Irvine, CA, USA) catheter in the left atrium. Three-dimensional mapping (CARTO®, Biosense Webster, Irvine, CA, USA) and left atrial ablation were successfully performed. After the procedure, fluoroscopy and transthoracic echocardiography showed an unchanged device position.

Discussion
To our knowledge, this is the first case report of a transseptal puncture in a patient with an implanted AFR. Transseptal puncture in patients with an implanted AFR seems to be safe and feasible. With device diameters of 21–23 mm and based on previous studies on similar devices, transseptal puncture should be possible in most patients, as opposed to puncture through the device.
Welfare Costs of Catastrophes: Lost Consumption and Lost Lives
Authors: Martin Ian W R , Pindyck Robert S 
Published: August 2020

Abstract
Most of the literature on the economics of catastrophes assumes that such events cause a reduction in the stream of consumption, as opposed to widespread fatalities. Here we show how to incorporate death in a model of catastrophe avoidance, and how a catastrophic loss of life can be expressed as a welfare-equivalent drop in consumption. We examine how potential fatalities affect the policy interdependence of catastrophic events and ‘willingness to pay’ (WTP) to avoid them. Using estimates of the ‘value of a statistical life’ (VSL), we find the WTP to avoid major pandemics, and show that it is large (10% or more of annual consumption) and partly driven by the risk of macroeconomic contractions. Likewise, the risk of pandemics significantly increases the WTP to reduce consumption risk. Our work links the VSL and consumption disaster literatures.