bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reconfigurable detuned dual‐frequency series–series compensated WPT system for high anti‐misalignment tolerance
Authors: Xu Kerui , Zhou Jing , Wang Bo , Wang Yuankui 
Published: March 2024

AbstractIn the realm of wireless power transfer, considering misalignment between transmitting and receiving coils is imperative. Traditional wireless power transfer systems experience a significant decrease in output power when the coupling coefficient fluctuates. This paper proposes a reconfigurable dual‐frequency series–series (SS) topology with primary side inductive detuned and secondary side with full resonance. The proposed topology operates at two frequencies and can be transformed into two different SS topologies at each frequency. This allows the system to switch between the two SS topologies when a large misalignment occurs, thereby achieving a more stable output power level. Furthermore, a comprehensive parameter design flowchart for the proposed topology is presented, and the parameters for a 400 W prototype are designed and implemented. The prototype is tested to evaluate the performance of the topology. The frequency response analysis of the prototype validates the effectiveness of the parameter design method. The test results show that the topology can maintain output power fluctuations within 23% of the maximum power for misalignment ranging from k = 0.13 to k = 0.46. Additionally, the system maintains an efficiency of at least 80% across the entire output power flat range, peaking at a maximum efficiency of 91%.
Wie gemeindenah soll Psychiatrie sein? Distanzeffekte auf die
Inanspruchnahme psychiatrischer Leistungen in einer Schweizerischen
Versorgungsregion
Authors: Stulz Niklaus , Dubno Benjamin , Gebhardt Ralf , Hepp Urs 
Published: March 2024

Zusammenfassung
Ziel der Studie Untersuchung der psychiatrischen Inanspruchnahme in
Abhängigkeit von der Anreisezeit zu den Behandlungsangeboten.
Methodik Retrospektive Analyse der Inanspruchnahmekohorte 2022 (18–64
Jahre alt) in einem psychiatrischen Dienst in der Schweiz.
Ergebnisse Die bevölkerungsbezogenen ambulanten Inanspruchnahmeraten
nahmen mit zunehmender Distanz (Reisezeit im öffentlichen Verkehr) zwischen den
Wohngemeinden und den zuständigen Ambulatorien deutlich und statistisch
signifikant ab. Für die stationäre Inanspruchnahme fanden sich deutlich
geringere Distanzeffekte.
Schlussfolgerung In einem gut zugänglichen und ökonomisch vernünftigen
psychiatrischen Versorgungssystem sollten stationäre und spezialisierte Angebote
zentral organisiert werden, während ambulante, allgemeinpsychiatrische Angebote
eher dezentral und wohnortsnah zu planen sind.
The Extension of Traumatic Subdural Hematoma into the Interhemispheric Fissure Is Associated with Coagulation Disorders: A Retrospective Study
Authors: Sannwald Lennart W. , Moskopp Dag , Moskopp Mats L. 
Published: March 2024

Abstract
Background This study investigates the correlation of the radiologic sign of interhemispheric subdural hematoma (iSDH) in different injury patterns with clinical coagulation disorders. It is hypothesized that the presence of iSDHs is correlated with clinical coagulation disorders in patients with traumatic brain injuries and subdural hematoma (SDH).
Methods Between January 1, 2020 and June 30, 2022, 154 patients with SDH were identified. Coagulation disorders were assessed using chart review and patients were divided into four groups: SDH without iSDH without further injuries (SDH), SDH with iSDH without further injuries (SDH + iSDH), SDH without iSDH with further brain injuries (Combi), SDH with iSDH with further injuries (Combi + iSDH). These four groups were formed under the assumption that isolated SDHs result from a highly specific trauma mechanism (rupture of bridging veins) in predisposed elderly patients, while combined brain injuries with SDH result from a severe global traumatic brain injury combining different pathophysiologic mechanisms often in younger patients. The groups were analyzed for patient demographics, clinical presentation, and association with coagulation disorders. The significance level was set at p < 0.005.
Results The presence of an iSDH was associated with a higher likelihood of concomitant coagulation disorder or anticoagulants in cases of isolated subdural hemorrhage (56.8% of the population in SDH vs. 94.7% in SDH + iSDH, p < 0.005). This effect was not significant in the cases with combined traumatic brain injuries (33.3% in Combi vs. 53.6% in Combi + iSDH, p > 0.005).
Conclusion Our data indicate a high positive predictive value (PPV = 94.7%) for coagulation disorders in traumatic SDH patients with iSDH without any further focal and diffuse brain injuries. We consider this a relevant finding since it hints at the presence of coagulation disorders and might be used in early hemostaseologic assessment and emergency management.
Cementless versus Cemented Total Knee Arthroplasty Using the Same Implant Design: A Mean 5-Year Follow-up Study
Authors: Miller Adam J. , Nadar Arun C. , Granade Charles M. , Smith Langan S. , Yakkanti Madhusudhan R. , Malkani Arthur L. 
Published: March 2024

AbstractCementless implant use continues to increase primarily due to increased numbers of younger and obese patients opting for primary total knee arthroplasty (TKA). Given the increased use of cementless implants, the purpose of this study was to evaluate the midterm clinical performance of cementless TKA using a highly porous tibial baseplate compared with its cemented counterpart of the same system. We conducted a retrospective case-control study of 400 patients undergoing primary TKA that included 200 patients with cementless components matched for age and body mass index (BMI) to 200 patients with cemented implants of the same implant design with a 5-year follow-up. We evaluated clinical results, complications, revisions, and overall survivorship between the cohorts. Statistical analysis was performed using student t-test and chi-square analysis. There was no statistical difference in age (64.3 vs. 64.3 p = 0.81), BMI (34 vs. 33.1 p = 0.19), preoperative Knee Society Score (KSS) function (41 vs. 32.3 p = 0.22), and preoperative KSS knee score (39.2 vs. 38.3 p = 0.54) between the cementless and cemented cohorts, respectively. The cementless group had seven revisions, while the cemented group had nine revisions (p = 0.609). The cementless group had one revision due to aseptic loosening versus five in the cemented group (p = 0.09). Postoperative 5-year KSS knee scores were 92.84 versus 91.75 (p = 0.386) and function scores were 81.81 versus 69.65 (p = 0.00004) in the cementless and cemented groups, respectively. The cementless group had survivorship of 96.5% for all-cause revision compared with 95.5% in the cemented group at 5-year follow-up (p = 0.60). Cementless TKA using a highly porous tibial baseplate showed excellent midterm results with one case of aseptic loosening at 5-year follow-up and with similar Knee Society outcome scores and survivorship compared with the cemented group. Cementless TKA demonstrated noninferiority to cemented TKA and could be used as an alternative mode of fixation in patients opting for primary TKA. Additional long-term follow-up is needed to determine if cementless TKA can demonstrate improved survivorship over cemented TKA.
Causes of conflicts in standardization alliances related to the Belt and Road Initiative
Authors: Chen Xiuwen , Zhou Qing , Wang Zhigang 
Published: March 2024

AbstractEffective conflict management is pivotal for achieving innovation performance within standardization alliances, particularly those for the Belt and Road Initiative (B&R Initiative). However, existing research has paid limited attention to the interdependent relationship between influencing factors of conflicts in these alliances. To address this gap, this paper employs the interpretative structure model (ISM) to establish mutual relationships among 16 identified influencing factors. The results show that target difference, unbalanced input of resources, and unreasonable distribution of benefits are recognized as key facilitators at the top level, while political risks, impact of financial factors, and policy changes are identified as foundational drivers at the bottom level. At the intermediate level, factors such as demand difference, technical capabilities difference, cognitive difference, value pursuit difference, information asymmetry, lack of trust, poor communication, resource dependency, and unreasonable contribution evaluation are positioned. These identified interdependence relationships offer crucial reference information for conflict management in standardization alliances for the B&R Initiative.
Noise and thermal performance of a sub-attofarad capacitance sensor for precision measurements, with applications in gravitational wave detectors
Authors: Saraf S. , Buchman S. , Lui C. Y. , Wang S. , Lipa J. 
Published: March 2024

We describe the design principles, fabrication, and characterization of a precision AC resonant capacitance bridge (RCB) sensor, based on a resonant differential planar printed circuit board transformer with a solid (ungapped) MnZn ferrite core, demonstrating a short-term sensitivity at 293 K of 0.225 ± 0.005 aF/√Hz at around 120 kHz resonance frequency and 1 Hz Fourier measurement frequency. At 120 K, the RCB short term noise sensitivity is 0.118 ± 0.005 aF/√Hz. We compare the ungapped configuration to five different RCBs: three with a core gap of 65 μm and two with a core gap of 130 μm. Their average room temperature short term noise sensitivities are 0.30 ± 0.01 and 0.45 ± 0.01 aF/√Hz, while the cryogenic operation of these transformers at 120 K resulted in averaged sensitivities of 0.23 ± 0.01 and 0.36 ± 0.01 aF/√Hz, respectively. Multi-hour room temperature runs, with one core of each of the three gap types, proved the stability of their long-term sensitivities of 0.234 ± 0.005, 0.338 ± 0.009, and 0.435 ± 0.010 aF/√Hz for the ungapped (40-h duration) and the 65 and 130 μm (28-h duration) cores, respectively. At 0.1 mHz, a critical frequency for space gravitational wave detectors, the respective sensitivities are 0.25 ± 0.02, 0.35 ± 0.02, and 0.53 ± 0.07 aF/√Hz. Measurements with the ungapped transformer configuration for temperatures from 325 to 349 K further validate the dependence of the noise model on temperature and permeability. The performance of our RCB with an ungapped core matches the calculated performance value and shows an improvement in signal-to-noise ratio of two or more compared with capacitance bridges developed for similar applications. A further factor of about two noise reductions is achieved by cooling to 120 K.
How Common can the Origin of Clusters Cha I, Cha II, ϵ Cha and η Cha be?
Authors: Bobylev V. V. , Bajkova A. T. 
Published: March 2024

Abstract
The trajectories of the groupings η Cha, ϵ Cha and Cha I, Cha II, constructed backward in time, have been studied. We concluded that the hypothesis about the joint formation of all four of these clusters from one molecular cloud cannot be completely excluded. However, 10–15 Myr ago, all these four clusters were located at approximately the same height above the plane of the Galaxy. Thus, the gas-dust clouds from which all these four clusters were formed were located on one broad front. It is possible that the appearance of the Cha I, Cha II, ϵ Cha and η Cha clusters may be associated with the impact on such a front of shock waves formed after supernova explosions in the Scorpius–Centaurus association. New estimates of the kinematic ages of the clusters Cha I and Cha II are obtained as 0.12 ± 0.19 and 0.05 ± 0.15, respectively. It is shown that the minimum size of the Cha I-north and Cha I-south clusters corresponded to the time of 0.55 ± 0.24 Myr and 0.04 ± 0.18 Myr ago, respectively, and approximately 1.5 Myr ago the distance between the trajectories of these two groupings was minimal.
Analysis of Energetic and Traction Performances for an Electric Vehicle in Real Driving Conditions
Authors: Ancuța A A , Voloacă Ș , Frățilă G , Danciu G 
Published: March 2024

Abstract
In continuation of the studies related to the performances of electric vehicles and their optimization solutions, in this work a simulation model will be created in accordance with all the demands that appear on the vehicle during driving and the model will be adapted for urban driving conditions on a certain length of time, so that the performance of the electric propulsion system can be determined, such as: the state of charge of the battery, the consumption of electricity, the characteristics of the electric motor, as well as the variation of the autonomy of the vehicle. The simulation model made will later be correlated with a series of experimental data determined in real driving conditions so that the accuracy of the made model can be checked and validated so that it can be used on different types of electric vehicles with different performances and destinations.
The design and development of an Integrated Propulsion System – Phase 3: the testing bench
Authors: Croitorescu V , Ionescu A , Preda D , Duran B , Giurca L 
Published: March 2024

Abstract
The paper presents the testing bench dedicated to the integrated propulsion system (IPS). The IPS consists of a wheel that carries the electric machine and the suspension inside. Its behaviour needs to be tested while being used independently on a test bench and then on road tests. Because no already existing testing bench was available for this kind of testing, a dedicated testing bench was designed and developed. Its main role is to investigate the functional behaviour of the wheel, together with the integrated suspension system behaviour. The tests were made following different scenarios, where different tire dimensions, different environment properties, different road profiles etc. were reproduced.
Proposed solution for the electrification of a motor vehicle formerly powered by an internal combustion engine (case study: Oltcit)
Authors: Racila L , Dumitru I , Oprica A , Matei L 
Published: March 2024

Abstract
A vehicle powered by electricity is a kind of alternative fuel-powered automobile that uses electrically powered engines and controllers for them in place of a conventional internal combustion engine. Instead of burning a carbon-based fuel, power is generated using battery packs. This not only results in monetary savings but also has an extremely reduced negative influence on the surrounding natural environment. The high price that a buyer must pay to get one of the electric cars that are now on the market is one disadvantage. In this article, we explore the possibility of developing an electric vehicle with the use of an electrical conversion kit. The fundamentals and constituent parts of electric car systems will be broken down, and the procedure for transitioning from an internal combustion engine vehicle to an electric vehicle will be analyzed in this paper.
Assessment Possibilities for Trajectory Fusion of Two Vehicles in the Case of Automated Vehicles
Authors: Cordoş N , Barabás I , Todoruţ A , Duma I , Molea A , Moldovanu D , Burnete N , Jurchiș M , Ghereș M 
Published: March 2024

Abstract
Because of the increasing integration of automation and cutting-edge technology into modern transportation systems, the development of efficient and dependable Automated Vehicles (AVs) has become an important area of research. One of the most important characteristics of AVs is their ability to perceive and navigate complex environments safely. The process of combining trajectory data from multiple vehicles, known as trajectory fusion, has the potential to improve AV perception. The feasibility of implementing trajectory fusion in the context of two autonomous vehicles coexisting in the same operational environment is investigated in this study. The primary goal of this research is to investigate the effectiveness of trajectory fusion in increasing the environmental awareness of Automated Vehicles (AVs), while also investigating its implications for the decision-making mechanisms that govern these vehicles. The MATLAB Simulink simulation platform was essential in carrying out this investigation. The intricate dynamics of trajectory fusion within the context of dual AVs were meticulously analyzed and evaluated using this software.
Kinematic and dynamic analysis of a planetary gear box in steady-state working regime
Authors: Ciobotaru T , Grigore L S , Barothi L , Alexa O 
Published: March 2024

Abstract
The paper presents a method for analysis of planetary gear boxes in order to calculate the speed and torque of the epicyclic gear trains elements. Based on these findings, the power flow within the gear box is determined. Additionally, the mechanical efficiency is estimated in order to assess the overall efficiency of the transmission.
Design of Advanced Power Transmissions
Authors: Pavlov P , Dobreva A 
Published: March 2024

Abstract
During the last five years, significant progress has been made in the development of automotive transmissions, and especially in increasing the gear ratios and improving the efficiency. With the help of software products and programs, new transmission design schemes have been constantly developed, which are characterized by improved operational parameters. Different optimization methods have been considered about the implementations of main objectives: power transmissions’ component design and efficiency improvement. Conclusions have been made concerning the opportunities for reducing the energy consumption by engineering tools inside the power transmissions.
The effects of LPG use over the performance of a Diesel engine
Authors: Molnar C V , Izvorean S , Borborean A T , Stoica V 
Published: March 2024

Abstract
This study is based on the effects of using an auxiliary fuel such as gas on the performance of diesel engines. More attempts to use gas as a secondary fuel in a diesel engine were made over the years, resulting in significant increases of the engine performance. Other effects of dual fuel use, are lower fuel consumption, and an improved combustion, that has a direct effect on pollutant emission. For this investigation a 4-cylinder diesel engine with mechanical injection, equipped with a speed regulator disable system. An auxiliary fuel (gas) is introduced through the intake manifold of the engine using a volume base measurement system. According to the literature, by increasing the main injection advance, we can see further improvement in the engine performance, this being a result of better timing of the burn process. The regular burn process uses only a part of the oxygen in the cylinder, by introducing the gas in the intake, it uses the rest of the oxygen in the cylinder in the burn process. This in theory will improve the efficiency of the engine and thus reduces the emissions.
On the impact of using nanoparticles type additives on the altering of diesel fuel jet characteristics
Authors: Niculae A L , Chiriac R , Racovitza A 
Published: March 2024

Abstract
Even though diesel-powered passenger cars and light-duty vehicles may not be sold in the European Union by 2035, possibly in most other countries will be. Truck diesel engines will remain in use after 2035 because electric trucks are not a viable alternative for goods transportation. This involves continuing research and development on diesel engines to reduce their pollutant emissions. Alternative (renewable) fuels with combustion improvers can diminish emissions at the source. Nanoparticle-based additives can enhance the efficiency and emissions of diesel engines through their intense catalytic activity and by improving the fuel injection process. However, their effect on the injection process has not been well tested and published in the dedicated literature. The use of nanoparticles mixed in small fractions with original diesel fuel influences the physicochemical properties of the fuel as well as the formation of fuel jets inside the combustion chamber. This research focuses on the opportunity of using different diesel fuel blends mixed with combustion improver additives such as MWCNT and CeO2 nanoparticles. In this sense, a simulation investigation was conducted using the AVL BOOST Hydsim software. The physicochemical properties of fuels were used to assess the macroscopic characteristics of the fuel spray, such as penetration, spray cone angle, and Sauter mean diameter. When increasing the nanoparticle dosage, the penetration and spray cone angle values are decreasing, while the Sauter mean diameter values are increasing. This tendency is present for both nanoparticle types considered.
The impact of real driving on vehicle CO2 emissions
Authors: Constantin C , Bățăuş M , Rențea C , Frățilă G 
Published: March 2024

Abstract
On-road (real) driving of a conventional vehicle having free gear-shift strategy and driving style, non-zero positive altitude gain, and uncontrolled ambient conditions is expected to produce different emissions values, including CO2, in respect to those produced in a controlled laboratory experiment following a standardized velocity profile.
This paper aims to investigate the impact of driving style characterized by driving dynamics on CO2 emissions of a passenger car equipped with an internal combustion engine. The study is based on recorded on-road trips of a passenger car that are postprocessed using the EU real driving calculation procedures.
Selected segment trips of urban, rural and motorway driving are used as input for a detailed vehicle model developed in LMS Imagine. Lab AMESim in order to assess the impact of real driving on vehicle CO2 emissions.
Comparisons between Assembly Technologies by Welding and Brazing of Aluminium Alloys from the Sight of Assembly Quality
Authors: Dimitrescu A , Babiş C , Rugescu A M 
Published: March 2024

Abstract
Aluminum and its alloys are finding use in more and more industrial fields. Since the early 1970s, when many companies in the automotive, pharmaceutical and aeronautical industries replaced the classic components of iron alloys with those of aluminum alloys, they faced various difficulties in the non-removable assembly of designed components.
The first assembly technologies used were welding, followed in the 1980s by brazing. Due to its economic advantages, in many cases brazing technologies are preferred by manufacturers. The present paper aims to make a comparative study, based on experimental data, between the non-removable assembly technology by welding and brazing for aluminum alloys of group 6000. Due to the high costs of materials and labor, it is preferable to use relevant non-destructive control methods that can indicate any discontinuities that may occur in welded or brazed structures. These defects can provide valuable information and may indicate either non-compliance with the required technological conditions or the wrong choice of assembly method. Non-destructive testing methods that can highlight interior defects, such as radiographic control with penetrating radiation and ultrasound will be used, as well as less expensive equipment and labor methods that may highlight surface defects or which communicates with the surface such as the method of control with penetrating liquids. Thus, the joint areas of the base and filler materials will be analyzed, as well as the areas in the immediate vicinity that have been thermally influenced. The experimental results will be able to lead to pertinent conclusions in the way of choosing the non-removable assembly technology, results that can be easily generalized in the industrial fields. Thus, each company will be able to choose according to the conditions imposed by the product specifications a certain technology that will satisfy its requirements.