bluuebunny/crossref_metadata_2025_split huggingface dataset:
Improvement of regulatory process for import and export of radioactive sources through digital transformation
Authors: Srikongpan P , Nakkaw P , Chaiwat A 
Published: September 2019

Abstract
Radioactive sources have various utilization in many fields in Thailand including medical, industrial, research and education. Thailand’s regulatory body, Office of Atoms for Peace (OAP) has been regulating the imports and exports of radioactive sources under the Atomic Energy for Peace Act, B.E. 2504 (1961) and Nuclear Energy for Peace Act, B.E. 2559 (2016) through the licensing process and customs declaration process. Under these processes, licensees must report their imports and exports by submitting confirmation documents to the OAP within 15 days. To improve these processes, the OAP and Thai Customs have collaborated through a government and government partnership (G2G), in July 2016, to initiate electronic data sharing in a digital format called License Per Invoice (LPI), which includes all the necessary information for verification of import and export, such as radioactivity, port number, and Harmonized System Code (HS Code). This study has shown significant data of time-consuming reducing on paperwork process spent 30.32 days turn into 6.95 minutes by LPI/NSW system. The new process enhances information accuracy, integrity, security, as well as increasing regulation efficiency, reducing the amount of paper work, and facilitate all stakeholders greatly for import and export of radioactive sources in Thailand.
Evaluation of radiation safety for ionization chamber smoke detectors containing Am-241
Authors: Malain D , Kanchana P 
Published: September 2019

Abstract
The safety assessment was carried out for ionization chamber smoke detectors (ICSDs) containing 241Am under normal use and accident scenarios. The internal and external doses were estimated using dose coefficients and associated calculations. In normal use of the ICSDs with the activity in a range of 0.002–1 MBq per ICSD, the external doses to an individual for installation, use and maintenance were found to lie in the range of (0.01-4.17)×10−3 (0.017 - 6.76)×10−1 and (0.006-2.5)×10−2 μSv/y respectively. The activity of 241Am for domestic smoke detectors contains approximately 40 kBq per ICSD. The corresponding committed effective doses to a fire fighter during a fire and for cleanup operation after a fire via inhalation were found to be 6.1×10−5 and 0.024 μSv/y respectively. The committed effective dose equivalent to an infant via ingestion would be 148 μSv/y. The doses arising from normal use and incidents of ICSDs are less than 10 μSv/y and 1 mSv/y respectively which do not exceed the dose criteria for exemption from regulatory control. It could be concluded that the resultant radiological risk are estimated to be very low and lower than 1 mSv which is the annual dose limit to a member of the public for the safe use.
Disentangling the causes of the 1816 European year without a summer
Authors: Schurer Andrew P , Hegerl Gabriele C , Luterbacher Jürg , Brönnimann Stefan , Cowan Tim , Tett Simon F B , Zanchettin Davide , Timmreck Claudia 
Published: September 2019

Abstract
The European summer of 1816 has often been referred to as a ‘year without a summer’ due to anomalously cold conditions and unusual wetness, which led to widespread famines and agricultural failures. The cause has often been assumed to be the eruption of Mount Tambora in April 1815, however this link has not, until now, been proven. Here we apply state-of-the-art event attribution methods to quantify the contribution by the eruption and random weather variability to this extreme European summer climate anomaly. By selecting analogue summers that have similar sea-level-pressure patterns to that observed in 1816 from both observations and unperturbed climate model simulations, we show that the circulation state can reproduce the precipitation anomaly without external forcing, but can explain only about a quarter of the anomalously cold conditions. We find that in climate models, including the forcing by the Tambora eruption makes the European cold anomaly up to 100 times more likely, while the precipitation anomaly became 1.5–3 times as likely, attributing a large fraction of the observed anomalies to the volcanic forcing. Our study thus demonstrates how linking regional climate anomalies to large-scale circulation is necessary to quantitatively interpret and attribute post-eruption variability.
Focusing device based on overconstrained mechanism
Authors: Racila L D , Dumitru I , Tutunea D , Matei L , Geonea I , Otat O , Racila M 
Published: September 2019

Abstract
The paper presents an application based on a very special 6R overconstrained mechanism. This mechanism is started from 6R Wohlhart symmetric mechanism, not in its classical spatial position but in a different one, with three non-adjacent joints constrained to remain in a fixed plane. This disposition allows the conception of an interesting device, a focusing table, capable to obtain a good accuracy.
Organizational factors that influence job satisfaction in a company from automotive industry
Authors: Moraru G M , Popa D 
Published: September 2019

Abstract
The aim of this paper is to present the most important organizational factors that influence job satisfaction in many companies from automotive industry. Therefore, we have firstly analyzed several theoretical aspects in the specialty literature regarding the factors that influence employee satisfaction. Secondly, we have developed a research based on questionnaire in a branch plant of an international organization in automotive industry. There are many factors that place the automotive industry ahead of other areas of activity in terms of maintaining high work satisfaction among employees. We have found which of these factors have a great impact on job satisfaction in the studied branch plant: the lunch vouchers received by employees, the microclimate at work (light, silence, lack of emissions etc.), the relationship with hierarchical boss, the work schedule (duration and time interval), the organization’s support in solving personal problems, the clarity of the received tasks and others.
The dynamic capabilities framework implementation in innovation and creative ecosystems
Authors: Avram E , Avasilcai S , Hutu C A , Bujor A 
Published: September 2019

Abstract
The arising concern for the inter-industry collaborations was concretised through the continuous development of new collaborative structures as it is the case of business ecosystems emergence. The use of open innovation in existing ecosystems became an essential trigger for the emergence, defining and development of dynamic capabilities. Consequently, these capabilities were used as the most relevant resources in value networks evolution as they defined and created new ways for opportunities exploration and exploitation especially within existing ecosystems. From this point of view the current research seeks to identify and define what are dynamic capabilities, to present the existing framework of capabilities analysis and to understand how it is used in practice within existing ecosystems. Also, this research seeks to uncover how collaborative efforts and the use of innovative technologies influence organisational growth.
Lead time reduction and increasing productivity by implementing lean manufacturing methods in cnc processing center
Authors: Gherghea I C , Bungau C , Negrau D C 
Published: September 2019

Abstract
Growing competitiveness of manufacturing companies has led companies board to look for new innovative solutions to increase the productive efficiency. More and more companies are looking to maximize profit through different ways, some of them use classical methods that are focused on increasing production capacity, expanding the product portfolio, manufacturing and marketing campaigns, other operational activities, are implementing modern techniques to reduce losses. This paper propose to present the way that productivity is increased by reducing lead time through Lean Manufacturing method implementation. For this purpose a piece will be manufactured using a CNC processing center, which will contribute significantly to processing the part at a higher precision, and at the same time eliminating the down times. To highlight the contribution and the efficiency of the CNC processing center, will be present the classic production method using a classical milling machine, respectively FUS 22, the method that was also implemented, according to this case study. To analyze and graphically illustrate these two production methods, respectively classic and modern methods, VSM will be built, then the 2 methods will be compared.
Kinematic modeling of a 6R industrial robot
Authors: Ratiu M , Rus A , Balas M L 
Published: September 2019

Abstract
In this paper, we present the process of kinematic modeling and simulation, in ADAMS MBS of MSC software, of an articulated robot with six revolute joints, through direct and inverse kinematics. First, by using the STEP function, we define a spatial trajectory of the end effector, and, through inverse kinematics, we determine the motion laws of the six revolute joints. Then, we apply the inverse process on another virtual model of the same robot, by imposing the motion laws to the joints, to obtain the desired trajectory of the end effector, through direct kinematics. This work is a small part of our research regarding modeling and optimization of the industrial robots’ motion.
Estimation of braking capability for two distinct auxiliary engine brake systems paired with an exhaust brake
Authors: Manolache-Rusu I C , Glovnea M , Suciu C 
Published: September 2019

Abstract
Nowadays vehicles achieved an important increase in energy efficiency. Though highly desirable, in the case of heavy transport vehicles, this leads to a pronounced deficiency in their native deceleration capacity. This deficiency is more pronounced when traveling down slopes with important inclination, or when the traveling mode is with multiple starts and stops, as in the case of city travel. In such operating conditions, using only the conventional braking system can induce important thermal overloads, reducing braking efficiency, or even rendering the system useless. In order to limit this deficiency, auxiliary braking systems are often provided for heavy transport vehicles. Such systems serve to obtain a negative torque at the engine’s crankshaft thus actively slowing the vehicle. The present paper aims to simulate the braking capacity obtained by using a combination of two distinct engine brake systems: the Jake brake and the Bleeder brake. The obtained results provide information regarding the evolution of thermodynamic parameters over the engine working cycle, with applications to optimize the deceleration capacity of vehicles that use diesel engines. Based on the presented data, it can be determined which of the analyzed auxiliary braking systems may be best suited, for implementation on particular road vehicles.
Experimental research on Diesel Particle Filter (DPF) in relation to the fuel type
Authors: Jurchiş B M , Borzan A I , Băldean D L 
Published: September 2019

Abstract
The experimental research is developed to validate or to dismiss theoretical suppositions considering the efficiency of particulate matter filters for internal combustion engines. This paper is pointing out the ideas of a practical test regarding soot impact upon the diesel particle filter from after treatment system, supplied with different fuels in operation mode. Measurements are recorded with after treatment system scanner and subsequently the experimental data are processed and graphically presented using digital module. Experience and know-how concerning the after-treatment system applied to the exhaust pipe of a Diesel engine is extremely useful in modelling the protocol for sustainable technical design of the automotive powertrains. The present paper outlines an applied process of controlling and analysing at least four parameters defining the clogging level of an actual diesel particle filter in K9K792 euro 5 internal combustion engine in relation to the fuel type. Engine supplied with Diesel standard has a wide range of clogging, but when changing to more blended fuels containing biodiesel from soy methyl ester and ethanol, the after treatment process is influenced significantly. The experimental testing is designed to reiterate for each fuel type in real time and after a distance of one thousand kilometres – in engine speed regime of two thousand revolutions per minute.
Performance evaluation of the support bush manufacturing line by modeling and simulation
Authors: Blaga F S , Stănăşel I , Pop A , Hule V , Buidos T 
Published: September 2019

Abstract
Improving the performance of manufacturing systems is the objective of management activities. The paper presents how this objective can be achieved by modeling and simulation. Base on the manufacturing process of the part support bush it is modeled the production line. Modeling is done using the TECNOMATIX PLANT SIMULATION program. Using the first model, by simulation, it was found that the resulting production after eight hours was relatively reduced: 28 pieces. Under these conditions, an additional welding post was introduced in the second model. It results in double the production and also in narrow places. The third model is designed in such a way that bottleneck is eliminated, and there is also an increase in production.
Mechanical design and 3D printing process of an exoskeleton used for elbow joint rehabilitation
Authors: Tătulea I A , Drugă C N , Şerban I 
Published: September 2019

Abstract
This paper presents the design and 3D printing process of the components which form an exoskeleton robot used in elbow joint rehabilitation. In the first part of the paper are presented a series of exoskeleton models used to rehabilitate the upper limb (4 DOF and 7 DOF). The second part is entirely dedicated to the mechanical design process of the components which form the device. In the last part of the paper are presented a series of aspects related to the physical achievement of the device using rapid prototyping technology (3D printers, filaments of material, execution time, assembly of components etc.). In this case was chosen the natural PVA filament from Ultimaker that dissolves in water. The dissolving process of the support material was analysed over a 24 hours period, in which the pieces were immersed in an aquarium. This paper represents a part of a much wider project of designing, creating and testing a bio mechatronic device used in rehabilitation of elbow joint.
Experimental research regarding some dynamic parameters determination for sandwich bars reinforced with carbon fiber
Authors: Miriţoiu C M , Burada C O , Tărâţă D F , Bolcu A , Ionică V 
Published: September 2019

Abstract
For this study, we have built some composite sandwich bars with polypropylene honeycomb core reinforced with carbon fiber. We have clamped the bars at one end and we left them to vibrate freely. From the free vibrations we have determined the damping factors per unit mass and length, loss factor, dynamic Young modulus, dynamic stiffness and the frequency of the first eigenmode. The general conclusions obtained from the vibrations results show tat the sample width can influence the damping coefficient, by the fact that it determines the surface in which the air friction acts on the sample. The sample mass or specific linear mass influence the damping factor by the fact that the samples with higher mass and width, the deformation energy which is stored in the sample through the initial deformation, is dissipated in a larger quantity of material. An influence may occur due to the sample rigidity, explained by the fact that a force initially applied to the sample produces a smaller deformation if the stiffness is higher.
Considerations on the road safety situation in Sibiu county, between 2010 and 2019
Authors: Gligor A 
Published: September 2019

Abstract
Road transportation has become a significant part of human society and interactions, especially from an economic and social point of view. Road accidents represent major disruptions in this regard, and therefore, nowadays, road safety management is a critical topic. Sibiu county is located in a critical position in Romania, at the crossing of major North-South and East-West roads. Starting from these facts, the current paper aims to present an analysis of the road accidents that occurred in Sibiu county from January 1st, 2010 to December 31st, 2018, focusing on the number of victims but also on the causes generating or favoring the generation of these accidents.
Numerical analysis of the SOC factor variations’ influence on the autonomy of an electric vehicle
Authors: Scurtu L , Varga B O , Mariasiu F , Buidin T , Borzan Adela , Moldovanu D 
Published: September 2019

Abstract
Electric vehicles are considered to be the immediate solution to drastically reduce the pollutant emissions from the road transport sector. However, one of the barriers of the massive penetration of the automotive market by electric vehicles is related to consumer/driver anxiety linked to the autonomy of electric vehicles. Autonomy depends directly on the battery technology that equips the electric vehicle, and from this point of view, the technology based on Li-Ion electrochemistry is the most accepted. This article presents a study by numerical simulation methods on the functional performance (autonomy) of an electric vehicle equipped with three different types of batteries (LiCoO2, LiFePO4, and a classic Acid-lead), as they have a low battery energetic charge. The obtained results showed that there are differences between the various technologies considered, the most efficient one being the LiCoO2 battery type.
Intake and exhaust pipe optimization for an internal combustion engine
Authors: Magdas V B , Moldovanu D , Mastan D C 
Published: September 2019

Abstract
Nowadays the stringent exhaust emission limitations of the internal combustion engines force the researchers toward an optimization process of new/prototype engines; but for limiting the overall emissions of an entire fleet of vehicles, an optimization of existing engines is also a right research direction. Solutions for this optimization process may come from using biofuels made from different plants that produce oxygen via photosynthesis during their vegetative state and therefore compensate the CO2 in the internal combustion engine exhaust. Other solutions include better exhaust treatment materials and devices. The current paper proposes a study on optimizing the intake pipe and exhaust pipe of a given internal combustion engine (Opel Astra F, code C18NZ, the production year 2000) using Lotus Engine Simulation software. First the model of the engine was implemented and validated with the full load power and torque variation. For the intake and exhaust the geometrical dimensions were then varied and an optimum was obtained.
Refueling strategies of autonomous hybrid vehicles
Authors: Zöldy M , Szalay S , Szalay Z , Zsombók I 
Published: September 2019

AbstractFuel consumption prediction and recharging strategies are crucial fields of autonomous hybrid vehicles. In our paper based on literature review the currents trends of hybrid vehicles are compared and working principals of hybrid strategies created for different types of hybrid drivetrains were described. The fuel management, basics of the range estimation in hybrid vehicles are displayed. Analyzations of the factors affecting the fuel consumption and energy management were made, along with an estimation of the order of magnitude of these factors, based on experiments done by EPA. Main fuel consumption influencers are listed and a real word test is carried out in a highway measurement. It was focusing on the affection on the fuel consumption, caused by the additional consumers of the vehicle has been carried out. Evaluation of this measurement was made and conclusions were drawn about the efficiency changes of the vehicle.
Study regarding the influence of passive safety systems on the occupant in the case of Automatic Emergency Braking System activation
Authors: Radu A I , Trusca D D , Toganel G R , Benea B 
Published: September 2019

Abstract
The aim of this paper was to analyze the injury level of the occupants of a vehicle in the case using the AEB system to reduce the velocity of a front-back collision by utilizing virtual simulations in PC-Crash software. This was achieved by conducting simulation at different velocities and 3 passive safety systems configurations. The velocities tested were 70, 75 and 80 km/h to observe the speed reduction of the vehicle in a collision by the AEB system. Also, the occupant was configured in 3 types of scenarios, when the occupant does not have the seatbelt or airbag, when only the seatbelt is used and when both seatbelt and airbag are activated. The results revealed a great speed reduction by the AEB system, reducing the impact velocity and also the occupant presented a reduced injury risk when both passive safety systems are active.
Vehicle dynamics influence on traffic safety in case of a certain route deceleration
Authors: Oţăt O V , Oţăt V , Racilă L , Geonea I , Tutunea D 
Published: September 2019

Abstract
The present paper is aimed at determining the kinematic and dynamic parameters of a vehicle during braking on a road in alignment. Closely related to the determining the braking capability, we need to consider the key parameters that characterize the maximum braking capabilities of a vehicle, i.e. maximum deceleration, minimum braking space and minimum braking time. Hence, resorting to the ADAMS Car software platform, we carried out a case study to determine the kinematic and dynamic parameters of a vehicle in the braking situation on the road in alignment. The virtual modeling developed within our case study consisted of five full-vehicle analyses of the braking situation on a track in alignment. The initial speeds of the vehicle and the gearbox shift varied for each of five analyzed cases, while the rest of the input parameters did not change. The initial speeds considered were: 30 km/h, 50 km/h, 80 km/h, 100 km/h and 120 km/h. Following the numerical processing, we set out to determine the forces and moments at the wheel at the braking moment. The processing of the numerical results envisaged a comparative analysis of the vehicle kinematic and dynamic parameters for the five cases analyzed.
Restoration and PLC control of a robot cell compatible MP-11 industrial manipulator platform
Authors: Hegyi G , Erdei T I , Husi G 
Published: September 2019

Abstract
The designing and usage of newer and newer tools and devices is an unavoidable part of industrial development. The robots employed this way either replace human work, or replace previous, obsolete robots. This advancement might cause otherwise functional robots to be discarded, or otherwise lost. Such robots might still be in usable condition after a suitable refurbishing, and their limitations can be alleviated by integrating these devices into a robot cell. In my project, I have set the goal to restore such a machine, which goal includes the full mechanical and electrical overview of the device and replacing its missing controller. The robot itself and other various resources necessary were provided by University of Debrecen, Faculty of Engineering, department of mechatronics.