bluuebunny/crossref_metadata_2025 huggingface dataset:
African Women Through Western Eyes
Authors: Musingafi Maxwell Constantine Chando , Mokhothu Pascalinah Morongoenyane
Published: October 2023

This chapter discusses Western perspectives on women of African descent. Western scholarship has tended to be patronising and essentialising in the manner it depicts women from Africa. This otherness of African women is characterised by the presumed inferiority, poverty, docility, passivity, dependency, illiteracy, traditionalism, domestic bound, powerlessness, subjugation, and lack of intelligence. The chapter traces the dark continent and otherness narratives back to the beginnings of Western civilisation before discussing the 14th-17th century European travellers' ambivalent and largely negative narratives of African women. The travellers considered female bodies of Africans uncivilised and unable to fully conform to the socioeconomic and political environment of the civilised West. The chapter discusses sexual exploitation of African women through rape- and systems of concubinage during colonialism. The Black female form was associated with many destructive stereotypes, claiming her to be sexually deviant, primitive, subhuman, hypersexual, and an uncontrollably erotic creature.
Unlocking the Power of Stakeholder Perception
Authors: Nag Aditi , Mishra Smriti
Published: October 2023

This research aimed to examine the Travel and Tourism Competitiveness Index (TTCI) as an evaluation tool for heritage sites with limited tourism development. The authors aimed to assess how well the TTCI aligns with stakeholders' perceptions when applied to sites facing conservation challenges. The research revealed that stakeholder perceptions significantly impact heritage planning strategies. The study highlighted the potential of stakeholder engagement in enhancing a destination's competitiveness by addressing visitor satisfaction, overall tourism appeal, and the likelihood of repeat visits. The findings emphasized the importance of a collaborative governance model and suggested potential modifications to the TTCI to better suit underserved heritage sites. The research aimed to transform heritage planning into an engaging and profitable endeavor, emphasizing the need for conservation improvements at sites lacking proper attention and promoting successful heritage planning for other sites by making them more appealing to tourists and visitors.
Mindfulness as Stabilization in Mental Healthcare
Authors: Mukund Bhavna , Dehuri Bijoy Kumar
Published: October 2023

Mental stability, besides absence of mental illness, refers to one's ability at sustaining psychological well-being and quality of life. Conversely, one is deemed “mentally destabilized” by society, when one's moods, feelings, and/or actions are consistently unpredictable. As stabilization process is a very important factor in mental health care, this chapter aims to explore and explain the mindfulness process/strategy in stabilizing the affected participants at preventive, during, and post treatment stages as stand-alone or in conjunction with other pharmacological treatment. Relevant information was collected through the individual databases like Psych info, Sciencedirect.com, Embase, PubMed, Scholar.google.com, Medline, and research journals from open access university websites for writing.
House of Quality for Safe Cities
Authors: Díaz-Parra Ocotlán , Fuentes-Penna Alejandro , Marroquín-Gutiérrez Francisco , Ramos-Fernández Julio C. , Rodríguez-Lara Blas Manuel , Barrera-Cámara Ricardo A. , Ruiz-Jaimes Miguel Angel , Tafoya Evelyn Valeria V.
Published: October 2023

The concept of safe cities is relatively new and is addressed as an outcome of Crime Prevention Environmental Design (CPTED). Safe cities use technology to help governments, communities, and businesses reduce the likelihood of crime and create an environment where people feel safe and comfortable. In this context, the house of quality (HoQ) presents itself as a valuable tool to ensure the design of safe cities and respond to community needs. The HoQ is a graphical matrix that establishes the relationship between citizens' demands and design features. By applying the HoQ in the context of safe cities, priority areas for the implementation of safety measures can be identified, as well as understanding community expectations and needs in terms of safety. This methodology provides a systematic approach to urban planning and design, helping to improve security and promoting safer and more livable urban environments.
Older Adults in Mexico
Authors: Torres-González Miguel Angel , Hernández-Veleros Zeús Salvador , Ramírez-Rosas José Gonzálo , Guzmán-Escorza Lizbeth Elena
Published: October 2023

The study analyzes the use of digital technologies as a platform for the integration of adults aged 60 and over to smart cities and proposes policies and strategies to governments that allow the reduction of the prevailing backwardness in digital literacy. The results show the existence of significant inequalities in the use, access, modality, and frequency of ICT by this age group; the gap is deepened by age, level of education, social stratum and gender. Some other factors of perception hinder the adoption of technology use, such as lack of knowledge, lack of access to ICTs, lack of knowledge about the use of ICTs, lack of access to ICTs, lack of knowledge about the use of ICTs, and lack of access to ICTs, lack of interest or feeling that they do not need to use ICTs, the latter factors have been identified as the main obstacles to associating the usefulness of these tools to their benefit.
Potable Water Distribution Network Optimization
Authors: Fuentes-Penna Alejandro , Barrera-Cámara Ricardo A. , Cruz-Sánchez Ileana
Published: October 2023

Nowadays, potable water supply has become a problem, involving different aspects such as water quality, pollution, pipes' quality, supply and demand of drinking water, water leaks, and supply cuts, among other aspects that have complicated the efficient use of potable water in urbanized regions. The objective of this chapter is to define potable water distribution network (PWDN) optimization as a complex problem, from the perspective of an NP-Hard problem, and the complexity as a variant of water distribution network optimization. The main result of the proposal is the definition of a problem that identifies the main variables involved in the supply of quality potable water as a global problem where each researcher can solve the main problem as one or propose solutions for different parts. The proposal simulation is oriented to present a brief solution related to the supply and demand of drinking water as a part of the PWDN.
Comprehensive Environmental Management System Report in Specific Sugar Mill, India
Authors: Naveen X. Agnello J. , Arivoli  , Devi M. Prashanthi , Parameswari C. , Saratha  , Rajkumar
Published: October 2023

The sugar industry's contribution towards the production level is a substantial negative externality and “trade-off” caused by the industrial sector due to trade-off on the environmental front and genuine concern. This chapter is application-oriented to a precise environmental management system in a simple way of demonstration in a combination of enhancing management systems like recycling, reusing, green chemistry, energy and quality management system, acceptable housekeeping practices. This environmental management system reinforces a holistic approach with different data survey cross-check list in the manufacturing industry. Methods used are in a qualitative and quantitative to: 1. Interview schedule method, and 2. Calculate net savings and payback, saving cost, and environment advantages per year. EMS in developed countries like India is still in the rudimentary stage.
Mobility Management in Smart Cities
Authors: León Myrna Hortencia Lezama , Aldana Eduardo Cruz , Urrea Hector Armando Figueroa , Gutierrez Rafael Ordoñez , Cuellar Hugo Villeda
Published: October 2023

To speak of smart cities is interpreted as the exclusive use of information technologies for the development of the daily activities of a population, however, this chapter develops the analysis of a smart city in the area of mobility and the factors involved for an efficient development of the existing relationship of society-infrastructure-sustainability, so that they converge within a single space that positively impact the quality of life of people. Through different international organizations, evaluation metrics for smart cities are established, where key indicators are valued for the development of a city with the perception of its inhabitants, emphasizing sustainable, safe and intelligent mobility. Therefore, data from 2019 to 2023 are rescued with the exception of 2022 (due to the Covid-19 pandemic), for the analysis of Mexico City regarding quality of life-technology-sustainability, directing its resources to the development of smart mobility, through an efficient management of its resources so that there is a permanent interconnectivity and care for the environment. In this sense, a proposal for improvement is made by taking advantage of communication technologies and the existing infrastructure for the implementation of means that allow connectivity between means of transportation and resources to collect data and thus manage them according to the needs of users.
Os Desafios e as Tendências Para os Negócios Vegetarianos e Veganos na Percepção dos Profissionais do Ramo
Authors: Ferreira Ana Cristina , Rezende Daniel Carvalho de
Published: October 2023

Nos últimos anos tem-se verificado a diminuição do consumo de alimentos cárneos e derivados de origem animal e o aumento da procura por produtos de origem vegetal. Dessa forma, o objetivo deste trabalho foi compreender as tendências e os desafios do mercado vegetariano/vegano, na ótica dos gestores de estabelecimento do ramo. Para isso, foram 15 entrevistas com gestores de estabelecimentos do ramo alimentício que trabalham unicamente com produtos vegetarianos/veganos, e por aquelas que inseriram essas opções em seus cardápios. Procedeu-se também com a observação direta não-participante pela pesquisadora em um evento nacional sobre vegetarianismo e veganismo, no ano de 2019. A análise de conteúdo foi feita com uso do software Nvivo. Os entrevistados afirmam que a disponibilidade de produtos vegetarianos/veganos é restrita em cidades menores. Eles compreendem que existe um movimento das grandes empresas em oferecem linhas de produtos veganos, o que é criticado por um grupo de consumidores veganos mais exigentes que preferem produtos de empresas essencialmente veganas. Para os participantes, é necessário que fornecedores invistam em matérias-primas confiáveis, de qualidade, e a um preço justo e que as empresas desenvolvam produtos saborosos e acessíveis financeiramente.
Data Privacy in Retail: A Bibliometric Analysis
Authors: Flores Alina , Dorneles Lucas
Published: October 2023

Data privacy is an issue that is catching the attention of the retail research area, especially with the technological advances in data collection and analysis that impact the consumer's perception of safety. As publications on this subject have increased significantly in recent years, a review of academic knowledge is needed. In order to address this, our study conducts a comprehensive review of the privacy literature. Our investigation of the intersection between data privacy and retail literature is a bibliometric analysis. In this paper, 31 years of publications were collected from two sources of bibliographic databases: Web of Science and Scopus, with 413 articles in total. To facilitate our analyses, we use the Bibliometrix package in R language. Our analysis revealed that this is a subject growing in size and relevance, but the intellectual structure of the field is fragmented. We also discussed, based on the conceptual structure of the publications, ideas for future research regarding privacy and retail.
Anthocyanins from Java Plum Fruits (Syzygium cumini) and Their Stability in Various pHs
Authors: Wathon Muhammad  Hizbul , Susilowati Endang , Ariani Sri Retno Dwi
Published: October 2023

Anthocyanins exhibit exciting colours in plants. Java plum fruit (Syzygium cumini) is considered a non-conventional and rarely consumed fruit with high levels of anthocyanins. This study was conducted to extract, purify, and characterise anthocyanins from dried Java plum fruits. The stability of anthocyanins was also studied. Anthocyanins in this study were extracted from dried Java plum fruits using acidified water (0.01% HCl, v/v) as a sustainable solvent. The crude extracts were loaded into a solid phase extraction (SPE) column packed with Amberlite-XAD-7HP with sequential elution. The ethanol solution was then analysed and characterised using UV-Vis spectrophotometry and Liquid Chromatography-Mass Spectrometry (LC-MS) to confirm the anthocyanins profiles present in the extracts; Anthocyanins extracted from Java plum fruits were identified as cyanidin-3-O-glucoside ([M+] m/z of 449.3), delphinidin-3-O-glucoside ([M+] m/z of 465.3), and petunidin-3-O-glucoside ([M+] m/z of 479.3). Total monomeric anthocyanin content (TMAC) was 0.13 mg/mL (cyanidin-3-O-glucoside eq.). Anthocyanins show various colours depending on the pH of the solution. Anthocyanins are stable at acidic pH and start degrading at neutral to alkaline pH. The suggested application of highly coloured anthocyanins extracted from dried Java plum is as natural colorants in foods, beverages, textiles, cosmetics etc.
Monte Carlo Simulation Study on the Depth-Dose Distribution of Thermoplastic Reinforced Composites for Potential Applications in External Beam Radiotherapy
Authors: Destura Vanessa V. , Quiñones Catherine Therese J. , Vequizo Reynaldo
Published: October 2023

External beam radiotherapy is a crucial method in treating cancer as it requires a high level of accuracy in patient positioning. Hence, commercial thermoplastic masks have a significant role during radiotherapy treatment as it is an efficient way of accurately positioning the patient without risking their safety and comfort. However, these commercial masks are expensive due to the use of costly compounds and additives, and several studies have concluded that commercial masks can significantly increase the surface dose. This study examined the effects of various thermoplastic reinforced composites for an alternative economic mask in terms of depth-dose distribution through Monte Carlo simulations in GEANT4 Application for Tomographic Emission (GATE). The simulations were varied by incident beams and their energies, material composition of the phantom, and varying thermoplastic reinforced composites. In general, the results indicated that PCL/PLA (polycaprolactone/polylactic acid), PLA/PU (polylactic acid/polyurethane), PCL/RH (polycaprolactone/rice husk), LDPE/PALF (low-density polyethylene/pineapple leaf fiber), and PP/PALF (polypropylene/pineapple leaf fiber) composites showed relatively accurate dose delivery in the target volume, which the slight difference will accumulate the 5% marginal error in treatment planning systems.
Viability Base Gel as Potential for Fabricating Crassostrea gigas hydroxyapatite (HA-Crassostrea gigas shell) Gel for Dental Caries Repair
Authors: Nisa Aminatun , Sari Mona , Yusuf Yusril
Published: October 2023

This study aims to create a gel base composition that has the potential to be combined with hydroxyapatite from the biogenic material Crassostrea gigas as a gel that can repair dental caries. The base gel composition consists of Na-CMC, guar gum, and glycerin which can dissolve the HA element without settling so that it can be applied well to the teeth. nano HA contained in Crassostrea gigas can potentially remineralize and improve caries in teeth. Therefore, it is inevitable that the base gel is safe to make composites with nano HA as a function of repairing dental caries. The potential of HA as a tooth remineralization material was proven by the SEM, FTIR, and XRD characterization of CaCO3 and CaO, which have sharp crystallinity. The base gel is safe to be applied to the bones of the teeth by the MTT test treatment. This proves that the base gel is not toxic and has high viability of 92.66% at a dose of 31.25 μg/mL. The IC50 value was 688.6 μg/ml. These results are safe to be applied with nano HA material and are safe to be applied to the bones of the teeth.
The Effect of Leaching Time on ZrO2 Synthesis through Alkali Fusion and Acid Leaching
Authors: Yustanti Erlina , Artrisanti Lestari , Sulistiyono Eko
Published: October 2023

Zircon (ZrSiO4) is one of Indonesia's most abundant mineral reserves that have yet to be fully utilized since zircon mine production in Indonesia is only 110.000 tons/year while Australia produces zircon up to 500.000 tons/year. Indonesia has 167 million tons of zircon sand reserves, especially in West Kalimantan. One of the most efficient methods of zircon sand processing in terms of energy use and environmental pollution is the alkali fusion of NaOH. This study used zircon sand with NaOH, a stoichiometric ratio of 1:4 (excess 1.5), to be roasted in a muffle furnace at 600°C for 120 min. The following process is washing the frit with water, and the frit is dissolved with aquades with ratio frit: H2O=1g:10 ml at 30°C and stirring 300 rpm for 60 min. The frit leaching solution is filtered to obtain Na2ZrO3. The water-wash product is leached using HNO3 as the leaching agent with the ratio of water-wash product: HNO3=1:5, the acid concentration is 6 M, at 90°C, agitation use 260 rpm with the variation of time 60, 120, 180, 240, and 300 minutes. The pregnant leach solution is deposited with NH4OH and calcinated. According to the results of this experiment, the optimum time to obtain high Zr extraction is 240 minutes. This research produced single-phase zirconia with a cubic crystal structure containing 91.23% ZrO2 and 1.18% SiO2.
Development of Cutting Propagation Technique for Ornamental Plant Allamanda cathartica (Rukkathana)
Authors: Rifnas L. M. , Vidanapathirana N. P. , Silva T. D. , Dahanayake N. , Subasinghe S. , Weerasinghe S. S. , Nelka S. A. P. , Madushani W. G. C.
Published: October 2023

Allamanda cathartica is an indigenous, widely distributed plant in Sri Lanka and is identified as Rukkathana. It is cultivated for large yellow flowers which have numerous medicinal and ornamental values. The propagation of Allamanda cathartica through conventional cuttings has limitations since the sprouting process is very slow and the success rate is remarkably low. Therefore, with the objective of developing a suitable cutting propagation technique for Allamanda cathartica plants an experiment was carried out in a two factor factorial manner at the University of Colombo Institute for Agro-Technology and Rural Sciences, Hambantota, Sri Lanka. Different types of stem cuttings: hardwood, semi-hardwood, softwood and shoot tips were tested in different potting media of pure sand, pure coir dust and sand and coir dust at the ratio of parts by volume 1:1 under controlled environmental conditions. There were twelve treatment combinations and four replications each containing three units and those were arranged in a Complete Randomized Design manner. Survival, rooting, shoot length, number of roots and root weight were recorded and statistical analysis was done by SAS 9.1.3 package. The study revealed that shoot tips exhibited better survival in a mixture of sand:coir dust and sand only media, as well as in coir dust and a mixture of sand:coir dust for hardwood cuttings. However, the lowest survival was in semi hardwood planted in sand only compared to all other treatments. Shoot tips showed superior rooting and shoot length in pure coir dust and a mixture of sand:coir dust media, while other cuttings showed the lowest rooting when planted in sand only media. The highest root weight was observed in shoot tips planted in sand:coir dust media, followed by shoot tips in pure coir dust, while the lowest root weight was recorded in softwood, semi hardwood, and hardwood planted in sand only, as well as in softwood cuttings planted in sand:coir dust media. The results suggest that the choice of growth media should be based on the type of cutting to improve rooting and growth performance. Higher aeration in growth media was found to be crucial for improving root initiation and stimulating metabolic processes. It can be concluded that, shoot tips planted in sand with coir dust can be recommended for mass multiplication of Allamanda cathartica.
Computer sciences and inter-disciplinary research
Authors: Hewagamage K. P.
Published: October 2023

No abstract available
The Use of Artificial Neural Networks for Prediction of Water in Oil Emulsions' Viscosity from Brazilian Light Oils
Authors: Oliveira Rafael da Silva , Souza Troner Assenheimer de , Ahón Victor Rolando Ruiz
Published: October 2023

Brazilian offshore activity has increased substantially in recent years, with many new oil fields being developed, and there is also a significant investment in the maintenance and optimization of existing ones. In all cases, the presence of water-in-oil emulsions during oil production is a critical issue, causing pressure drops in subsea lines and adding complexity to petroleum processing, resulting in a loss of productivity and quality of the produced oil. The factors mentioned can determine the technical and economic viability of offshore oil production, so predicting this property is crucial for both the project and operational stages, although it is not an easy task to accomplish. Several empirical correlations are present in the open literature to predict the viscosity of emulsions, but usually, they are not accurate enough to be directly applied to Brazilian oils.

In this paper, a machine learning approach based on the review of the literature and good practices used in the oil and gas industry and other engineering fields is proposed to predict water in oil emulsions viscosity. Was utilized 726 data points of light oil from different Brazilian fields to train an Artificial Neural Network (ANN). The input variables for the regression problem were temperature, water cut, shear rate, and °API, while the output was the relative viscosity of the emulsion. The Python programming language was used for statistical treatment, data processing, mathematical modeling, and resolution of the presented problem.

After training the ANN, the resulting model demonstrated good performance, with a coefficient of determination (R2) above 0.99 for the data used for testing. The final model obtained underwent cross-validation and the mean value for R2 was also above 0.99, proving the methodology's capability to create generic models for the presented problem.
Acknowledgement to reviewers
Authors: Office Editorial
Published: October 2023

No abstract available.
Evaluation of the effectiveness of personal electronic health assistants in monitoring patients with chronic diseases
Authors: De La Cruz Manuel Benigno Villanueva , Zegarra Cecilia Isabel Lévano , Vega Roxana Maribel Bustamante , Sime Cesar Lorenzo Torres , Narro Julio Brayan Saldaña , Ferrer-Peñaranda Lucio-Arnulfo , Dávila-Morán Roberto Carlos
Published: October 2023

Introduction: Chronic diseases pose significant challenges in healthcare, which has driven the development of electronic health solutions. The effectiveness of these solutions in the management of diseases such as hypertension has generated interest, but further in-depth, evidence-based evaluation is required.Objective: The study aims to comprehensively evaluate how a customizable web platform, called "HyperVigilance", influences blood pressure control in hypertensive patients, considering additional variables such as patient satisfaction, quality of life and costs associated with treatment. In addition, the aim is to explore possible demographic factors that could moderate the results.Methodology: The study was conducted with a quasi-experimental research design that included an intervention group using the "HyperVigilance" platform and a control group receiving standard medical care. Statistical tests were applied and demographic factors such as age, gender and socioeconomic status were considered.Results: The use of the "HyperVigilance" platform resulted in a significant reduction in blood pressure, increased patient satisfaction and a marked improvement in quality of life, as well as a reduction in the costs associated with the treatment of hypertension.Conclusions: The study concludes that the "HyperVigilance" platform is effective in controlling blood pressure and improving quality of life in patients with hypertension. The results support the growing role of digital interventions in chronic disease management, but highlight the need for long-term studies and exploration of different populations for a more complete understanding of their impact.
Hitchin representations of Fuchsian groups
Authors: Canary Richard D.
Published: October 2023

We survey the theory of Hitchin representations of closed surface groups into

\mathsf{PSL}(d,\mathbb R)

with a focus on their dynamical and geometric properties. We then describe recent extensions of this work to study Hitchin representations of co-finite area Fuchsian groups. The motivation for this recent work is a conjecture about the geometry of the augmented Hitchin component.
Flow box decomposition for gradients of univariate polynomials, billiards on the Riemann sphere, tree-like configurations of vanishing cycles for $A_n$ curve singularities and geometric cluster monodromy
Authors: A'Campo Norbert
Published: October 2023

The base space of the universal unfolding of

A_n

-curve singularities is equipped with a stratification such that the geometric monodromy group is generated by wall-crossing mapping classes.
Controlled Mather–Thurston theorems
Authors: Freedman Michael H.
Published: October 2023

Classical results of Milnor, Wood, Mather, and Thurston produce flat connections in surprising places. The Milnor–Wood inequality is for circle bundles over surfaces, whereas the Mather–Thurston theorem is about cobording general manifold bundles to ones admitting a flat connection. The surprise comes from the close encounter with obstructions from Chern–Weil theory and other smooth obstructions such as the Bott classes and the Godbillion–Vey invariant. Contradiction is avoided because the structure groups for the positive results are larger than required for the obstructions, e.g.,

\operatorname{PSL}(2,\mathbb{R})

versus

\operatorname{U}(1)

in the former case and

C^1

versus

C^2

in the latter. This paper adds two types of control strengthening the positive results: In many cases we are able to (1) refine the Mather–Thurston cobordism to a semi-

s

-cobordism (ssc), and (2) provide detail about how, and to what extent, transition functions must wander from an initial, small, structure group into a larger one.

The motivation is to lay mathematical foundations for a physical program. The philosophy is that living in the IR we cannot expect to know, for a given bundle, if it has curvature or is flat, because we cannot resolve the fine scale topology which may be present in the base, introduced by an ssc, nor minute symmetry violating distortions of the fiber. Small scale, UV, “distortions“ of the base topology and structure group allow flat connections to simulate curvature at larger scales. The goal is to find a duality under which curvature terms, such as Maxwell's

F \wedge F^\ast

and Hilbert's

\int R\, d\mathrm{vol}

are replaced by an action which measures such “distortions“. In this view, curvature results from renormalizing a discrete, group theoretic, structure.
Improvement of the EGR Dilution Tolerance in Gasoline Engines by the Use of a HSASI Pre-Chamber Spark Plug
Authors: Holzberger Sascha , Kettner Maurice , Kirchberger Roland
Published: October 2023

Charge dilution in gasoline engines reduces NOx emissions and wall heat losses by the lower combustion temperature. Furthermore, under part load conditions de-throttling allows the reduction of pumping losses and thus higher engine efficiency. In contrast to lean burn, charge dilution by exhaust gas recirculation (EGR) under stoichiometric combustion conditions enables the use of an effective three-way catalyst. A pre-chamber spark plug with hot surface-assisted spark ignition (HSASI) was developed at the UAS Karlsruhe to overcome the drawbacks of charge dilution, especially under part load or cold start conditions, such as inhibited ignition and slow flame speed, and to even enable a further increase of the dilution rate. The influence of the HSASI pre-chamber spark plug on the heat release under EGR dilution and stoichiometric conditions was investigated on a single-cylinder gasoline engine. The performance of the HSASI spark plug was compared with a passive pre-chamber spark plug (PPCSP) and a conventional spark plug (SI) for different combustion phasings. Detailed combustion analyses were conducted and the signal from an ion current sensor located inside the pre-chamber as well as the engine out NO emissions were examined. Operation with the HSASI pre-chamber spark plug allows the ignition timing to be advanced when misfiring occurs with PPCSP and unstable engine operation prevails with SI. With the same combustion phasing, HSASI allows for retarding the ignition timing compared to PPCSP and SI by up to 28 °CA due to a faster flame development. HSASI operation shows less NO emissions than SI and similar to PPCSP for same combustion phasing. However, HSASI has higher efficiency losses due to incomplete combustion and higher wall heat losses compared to SI.
Investigation of the Performance of Electric Bicycles in Interaction with Cyclists’ Driving Behaviour in Driving Cycles on a Chassis Dynamometer
Authors: Helms Sven , Rauch Yannick , Bejarano Martin , Kettner Maurice , Eckert Jochen
Published: October 2023

In an era of urbanization and increasing focus on sustainable transport options, bicycles and e-bikes (especially pedelecs) have gained popularity as environmentally friendly alternatives to cars.

In order to develop digital twins of bicycles and electric bicycles, in particular pedelecs, and to study the cyclist’s behaviour in interaction with the electric drivetrain, investigations were carried out on an automotive chassis dynamometer. Evaluation data for the pedelec and its drivetrain as well as the riding behaviour of different riders were obtained within driving cycles on the road and on the test bed.An AVL chassis dynamometer was used, which is originally designed to test motor vehicles with a maximum power output of up to 150 kW and a maximum speed of 200 km/h. The tests were performed in the “road load simulation mode”, which simulates the speed-dependent driving resistances of the test vehicle. An additional interface was implemented for dynamic adjustment of the altitude gradient.

Two test objects were used:

1
“Haibike”: mountain bike pedelec with a mid-mounted Bosch motor (Bosch Performance Line CX and CAN-Bus Data-logger).

2
EcoSensorBike: an urban trekking bike equipped with e.g. a torque sensor on the crank.

Due to the built-in measurement technology, the pedelec is used first for a qualitative evaluation of the power and traction data. The lighter second bicycle is used for further tests with several subjects.

A measurement campaign was carried out to gain data for the validation of the digital twin of the pedelec as well as for the investigation of cyclist’s behaviour in the driving cycle. The traction force and speed data will be recorded at high resolution by the dynamometer and will provide information on the power output of the rider-bike combination, as well as the braking and shifting behaviour under simulated traffic conditions. The data is recorded in real time, allowing the rider’s power output per crank revolution to be analysed by evaluating the traction force data. As with classical vehicle testing, the definable environmental and driving profile conditions on the dynamometer allow excellent reproducibility of the measurements.

The investigations show the differences of driving behaviour on the road and on the test bed.
Hybrid Electric Two-Wheeled Vehicle Fitted with an EVT System (Electrical Variable Transmission System)
Authors: Furuta Hideki , Yoshida Jun
Published: October 2023

In recent years, global warming, depletion of fossil fuels, and reducing pollution have become increasingly prominent issues, resulting in demand for environmentally-friendly two-wheeled vehicles capable of reducing CO2 emissions. However, it remains necessary to meet customers’ expectations by providing smaller drivetrains, lighter vehicles, and support for long-distance riding, among other characteristics. In the face of this situation, hybrid electric vehicle (HEV) systems are considered to be the most realistic method for creating environmentally-friendly powertrains and are widely used.

This research introduces a hybrid electric two-wheeled vehicle fitted with an electrical variable transmission (EVT) system, a completely new type of electrical transmission that meets the aforementioned needs, achieving enhanced fuel efficiency with a compact drivetrain. The EVT system comprises double rotors installed inside the stator. The hybrid electric two-wheeled vehicle equipped with the EVT system has the electric drive and regenerative braking functions of a fully electric vehicle, internal combustion start and power generation functions as an engine generator, and hybrid power generation functions, including combined power generation and drive through integrated control. The EVT system also provides boost acceleration functions and direct double rotor connection functions, offering wide-ranging advantages compared to conventional motorcycles and enabling the provision of new types of distinctive value.

The authors developed a prototype hybrid electric two-wheeled vehicle fitted with this unique EVT electrical transmission.

This article considers its qualities compared to other two-wheeled vehicles and describes the hybrid topology, the various functions of the EVT, the working principle of the EVT, the EVT configuration and the two-wheeled vehicle configuration, the prototype EVT machine, the EVT powertrain hybrid control strategy, the hybrid powertrain development environment, the results of hybrid electric two-wheeled vehicle performance measurements and the possibilities presented by hybrid electric two-wheeled vehicles.
Hybrid-MC as a Solution in the Transit Stage for the Carbon Neutral Society
Authors: Matsuda Yoshimoto
Published: October 2023

In order to ensure the realization of a Carbon Neutral: CN society, motorcycles: MCs are required to change their powertrains. Today's MCs have a variety of uses, and the meaning of riding a MC varies depending on the customer and region. Especially until a completely CN society is realized, for example, a transition period of like 10 years will require realistic and practical powertrain to be adopted and changed. To achieve this, we need a roadmap that combines the sustainability demanded by society, the affordability demanded by customers, and the practicality demanded by industrial associations. We will explain the technical challenges of the electric powertrain and the intention to develop BEVs for the FY23 SoP and HEV motorcycles for the FY24 SoP.
Impact of temperature difference on the features of spray deposited yttrium doped cobalt selenide (YCoSe) thin films for photovoltaic application
Authors: Akpu Nwamaka , Okpechi Uchechi , Elizabeth Nwaokorongwu , Imosobomeh Ikhioya , Julian Onwuzo , Nnanna Lebe , Agbodike Ifeanyi
Published: October 2023

In this investigation, spray deposited yttrium doped cobalt selenide (YCoSe) thin materials were synthesized in soda lime glass and the impact of substrate temperature (140 oC, 160 oC, 180 oC and 200 oC) on their elemental composition, surface morphology, structural, electrical and optical properties were investigated using scanning electron microscopy-SEM X-ray diffraction –XRD, four-point probe and UV-VIS spectrophotometer respectively. The EDX plots of the deposited undoped and Y-doped cobalt selenide revealed the major elements: cobalt, selenium and yttrium. This confirms the deposition of CoSe and Y-doped CoSe thin materials. The morphology of undoped CoSe thin materials was very rough containing randomly oriented non-uniform thin particles while addition of Y dopant (0.1 mol%) at substrate temperature of 140 oC gave a homogenous distribution of compact rectangular-like nanograins. The XRD result shows that the films are cubic polycrystalline in nature and the film grown at substrate temperature of 180 oC was seen to give the most excellent crystalline quality and a preferential orientation along (111) direction. From electrical results it was observed that increase in substrate temperature increased the film thickness with decreased resistivity and increased conductivity. The optical properties were found to vary with substrate temperature despite the fact that the variation was not totally linear, as the film deposited at substrate temperature of 160 oC deviated from the linearity in all the optical properties. The energy band gap of the deposited samples ranges from 1.25 eV–1.75 eV. The materials produced could be used in the production of photovoltaic devices.
A GERAÇÃO SCREENAGERS E OS DESAFIOS PARA A EDUCAÇÃO
Authors: Lira Ellen Gonçalves , Filho Elzo Brito dos Santos , Gonçalves Franciele , Santos Laurita Christina Bonfim Santos , Silva Sidinéia da
Published: October 2023

Este artigo aborda a temática da Geração de Screenagers e sua relação com a educação, explorando as possibilidades e impactos dessa geração digital no universo educacional. O referido trabalho é uma pesquisa bibliográfica onde são discutidos os desafios enfrentados por professores e escolas ao lidar com estudantes nativos digitais, bem como as oportunidades que surgem com o uso responsável da tecnologia na aprendizagem. O percurso escolar dos screenagers é analisado, destacando a importância de uma abordagem pedagógica alinhada com as novas formas de aprendizado. Tem como objetivo, explorar a relação entre os screenagers e a educação, destacando as implicações dessa geração no contexto escolar, bem como os impactos no processo de ensino-aprendizagem. O artigo apresenta o tema Geração Screenagers e seu Percurso Escolar, bem como os desafios para professores e escolas, possibilidades e impactos da geração digital na educação e reflexões pessoais sobre o contexto educacional atual e embasa suas argumentações com citações de autores que desenvolveram a temática.
A INTELIGÊNCIA ARTIFICIAL NA EDUCAÇÃO
Authors: Ferreira Joelson Miranda , Almeida Agnólia Pereira de , Araujo Camila Sabino de , Bezerra Olinderge Priscilla Câmara , Magalhães Pedro Soares
Published: October 2023

Este trabalho discute o uso da Inteligência Artificial mediada pela Tecnologia visando à oferta da Educação a Distância de qualidade, as tecnologias atuais permitem o acesso e a adoção de modernas plataformas disponíveis para inovar e reinventar a forma de ensinar e aprender no contexto da Educação a Distância e em múltiplas dimensões e sentidos promovendo mudanças significativas em todos os aspectos e especialmente na educação. Pretende-se com a investigação em questão apreciar os desafios para que essas possibilidades sejam alcançadas e ampliadas. Para complementação desse estudo é apresentada uma instituição pioneira em Educação a Distância e que usa da inteligência Artificial para ofertar uma aprendizagem mais efetiva e significativa para seus alunos. O presente trabalho trata-se de uma pesquisa bibliográfica com a finalidade de auxiliar na busca por novas possibilidades e políticas educacionais visando melhorias na Educação a Distância mediada pelas Novas Tecnologias da Comunicação e Informação e suas contribuições para a formação, qualificação e desenvolvimento de pessoas para atender as necessidades do mercado e resolver com plena autonomia as problemáticas do cotidiano. Por fim, constatou-se que é preciso encontrar meios de garantir que as máquinas possam ser auditadas e que as decisões sejam transparentes. Além da preparação ética dos profissionais de programação, professores e alunos que utilizarão a IA em suas atividades.
EDUCAÇÃO NA CONTEMPORANEIDADE
Authors: Polizello Ângela Ap. de Assis , Almeida Agnólia Pereira de , Meroto Monique Bolonha das Neves , Ribeiro Claudia , Santos Silvana Maria Aparecida Viana
Published: October 2023

O presente artigo visa buscar a compreensão sobre a educação na contemporaneidade diante da nova era que se apresenta: a Sociedade da Informação, do Conhecimento e da Aprendizagem. A pesquisa inicia pela análise do conceito de Informação, que alicerça o início de toda a cadeia do conhecimento e dos diversos tipos de conhecimento digital e de comunicação que se estabelece entre os seres humanos. Posteriormente serão analisados os conceitos de Conhecimento e Aprendizagem fundamentais na atualidade, onde se pleiteia uma sociedade conectada, reflexiva, responsável, dinâmica, globalizada, atualizada e com uma visão interplanetária de mundo nos moldes atuais. Em suma, a reflexão apresentada reflete um tipo de educação que exerça um papel essencial na formação de cidadãos integrando escola, sociedade e a conexão com o universo digital.
USO DO GOOGLE FORMS PARA AVALIAÇÃO DO ENSINO
Authors: Almeida Alessandra Barboza Barros , Leão Circe Carneiro de , Laet Lucas Estevão Fernandes , Souza Maura Aparecida de , Detoni Vanessa Souza Santos
Published: October 2023

Este artigo visa apresentar os resultados de pesquisa a respeito de uma ferramenta de avaliação de ensino que seja gratuita e de uso intuitivo, tanto para os professores quanto para os alunos. A ferramenta que será abordada é o Google Forms. Trata-se de um aplicativo para criação de formulários online que integra um conjunto de ferramentas do Google for Education. As ferramentas do Google for Education são de uso gratuito para as redes de ensino públicas em todo o mundo, principalmente após a Pandemia de Covid19. O Google Forms oferece a possibilidade de elaborar questionários, pesquisas e avaliações personalizadas de forma rápida e eficiente. É particularmente útil em ambientes educacionais devido às suas múltiplas funcionalidades. Os professores podem utilizá-lo para elaborar avaliações formativas ou somativas, coletar feedback dos alunos sobre aulas ou atividades específicas, bem como registrar a frequência ou o interesse em eventos escolares. Serão observadas suas funcionalidades, customizações e verificação da aprendizagem, através de avaliações, atividades gamificadas e verificação de desempenho no ensino remoto ou presencial, bem como suas aplicabilidades e limitações na utilização da ferramenta nas instituições de ensino. Resumidamente, o Google Forms é uma ferramenta valiosa que, se utilizada de forma estratégica, pode aprimorar a experiência educacional, favorecendo a interação entre estudantes e professores e aprimorando os métodos de ensino e aprendizagem.
CURRÍCULO, PLANEJAMENTO E TECNOLOGIA
Authors: Silva Heloisa Ferreira da , Coelho Ana Maria Lemes , Silva Lucinéia Ayres Coutinho da , Andrade Márcia Elisa , Rodrigues Roberto Gleydson da Silva
Published: October 2023

As novas tecnologias de informação e comunicação propiciam condições para a efetivação das informações que vem ocorrendo na educação e sua função de ser na sociedade. É papel da Escola fazer com que o aluno conquiste novas formas de ser, de pensar, sentir e se comunicar, na construção de uma aprendizagem significativa e de um ensino mais democrático, politizado, menos burocrático, com estudantes mais críticos e autônomos. Não dá mais para pensar numa educação como há vinte, trinta anos. O ensino requer transformações, a busca pela integração das tecnologias, metodologias e currículos é essencial. O currículo é a base e o norte para que o professor alcance as necessidades dos alunos, hoje, com perfis bem diferentes dos jovens de tempos atrás, com prioridades e interesses tão efêmeros. É preciso adequar o currículo aos dias de hoje, modificar a proposta pedagógica, inserir as novas tecnologias para que as aulas possam ser dinamizadas de forma interdisciplinar, possibilitando condições de acesso às TICs, desenvolvendo novas habilidades, estimulando a pesquisa e a troca de experiências. Vale ressaltar que para que todas essas ações aconteçam a formação dos professores é imprescindível.
EDUCAÇÃO NO CONTEXTO TECNOLÓGICO ATUAL
Authors: Ribeiro Rodrigo Vieira , Marins Josecarlos Emanuel Magalhães , Ferreira Kênia Cristina Soares , Galvão Rosângela Cardoso da Silva , Mira Sandra Cristina
Published: October 2023

O presente artigo, baseado em pesquisa bibliográfica, tem a finalidade demonstrar como a tecnologia do contexto atual está presente em nossos ambientes escolares e sociais, e formou uma nova geração de alunos que chamamos de screenagers, assim como apontar a suas características e o que isso provocou de transformações dentro do processo de ensino e aprendizagem, trazendo impactos positivos e negativos, mas também demonstrando as possiblidades para qualificar a educação que a tecnologia nos apresenta. Também será feita uma reflexão sobre como essa geração vem transformando e modificando a didática e as metodologias que escolas e professores utilizam para construir um ensino significativo para atual geração criando habilidades e competências que possam ser aplicadas nas diferentes realidades onde estão inseridos os alunos. A partir disto é possível concluir que essa nova geração transformou a nossa forma de pensar a educação, onde o professor passou a ser um mediador na construção do saber-fazer, colocando no aluno o centro do processo, estimulando relacionamentos positivos, assim como dando a eles o protagonismo da aprendizagem.
Desarrollo de habilidades gerenciales en mujeres líderes de la Universidad Católica de Cuenca–Ecuador
Authors: Fajardo Pauta Ruth Noemí , Cordero González Diego Marcelo , Solís Muñoz Juan Bautista
Published: October 2023

El estudio se enfocó en identificar las habilidades gerenciales predominantes en las mujeres que ocupan cargos directivos en la Universidad Católica de Cuenca y cómo fortalecerlas para impulsar el liderazgo femenino y la equidad de género en el ámbito laboral. Adoptando un enfoque positivista y metodología cuantitativa, se realizó una investigación exploratoria y descriptiva con un corte transversal y muestreo probabilístico aleatorio simple, el estudio abarca a 135 mujeres en cargos directivos, de las cuales se encuestó a una muestra de 105 mujeres. Los resultados destacaron la correlación entre mayor capacitación y la corrección de desigualdades de género, resaltando la influencia del liderazgo femenino en el desarrollo de habilidades gerenciales. Se evidenció que los programas de mentoría y el apoyo institucional fortalecen estas habilidades y contribuyen a la equidad de género en la universidad. Fortalecer habilidades gerenciales como trabajo en equipo, comunicación efectiva, decisiones estratégicas, toma de decisiones y resolución de conflictos es fundamental para que las mujeres superen barreras y demuestren su valía como líderes competentes. El empoderamiento de mujeres líderes beneficia tanto a las organizaciones, enriqueciendo la toma de decisiones y la diversidad de perspectivas y enfoques, como a la sociedad en general, fomentando un mayor rendimiento y competitividad en el entorno empresarial. Esta investigación destaca la necesidad de promover el desarrollo de habilidades gerenciales en mujeres líderes en la Universidad Católica de Cuenca y en otros ámbitos laborales a través de programas de desarrollo de liderazgo específico para mujeres.