bluuebunny/crossref_metadata_2025 huggingface dataset:
Importance of Social Networking Sites and Determining Its Impact on Brand Image and Online Shopping: An Empirical Study
Authors: Khan Mohammed Arshad , Alhathal Faisal , Alam Shahid , Minhaj Syed Mohd
Published: March 2023

Social networking influencers are those who use images, videos, and other updates on social media platforms to affect consumers’ impressions of a company or product. The purpose of this study is to assess the present status of social networking sites and the online purchase intentions of consumers. This research paper is an attempt to identify the effect of various attributes of social networking that influence credibility and brand image, eventually leading to the purchase intention of consumers in Delhi NCR (National Capital Region), India. The data were collected using Google Forms via an online questionnaire with a sample size of 262 respondents. A convenient sampling technique was used; structure equation modeling (SEM), convergent and discriminant validity, and model fitness were achieved through Smart PLS 3. This study’s findings reveal that expertise, information quality, and trustworthiness have significant positive effects on credibility and brand image, as well as a significant positive indirect effect on online purchase intention. Other factors, such as entertainment, attractiveness, and likability, have no significant effect on credibility and brand image. The credibility of social networking and brand image mediate the positive relationship between information quality, expertise, trustworthiness, and consumer online purchase intention. On the other hand, the credibility of social networking and brand image mediate the lack of a positive relationship between likability, attractiveness, entertainment, and consumer online purchase intention.
Examining Practices of Apparel Use and End of Life in New Zealand
Authors: Nautiyal Mitali , Hunting Amabel , Joseph Frances , Cleveland Donna
Published: March 2023

Throughout a garment’s life cycle, the use and end-of-life phases are crucial in determining its environmental impact, due to the resources that would be utilised and waste produced during maintenance and disposal. Consumption patterns differ among countries and cultures; however, in New Zealand, there is limited published information to date. To address this gap, an anonymous online poll was conducted examining laundry practices, lifetime wear events and disposal practices for woollen and synthetic-blend knitted jumpers, which are predominantly used as winter clothing in New Zealand. The survey revealed considerable differences in the ways woollen and synthetic garments were worn, maintained and discarded. Over its lifetime, although woollen garments were worn a greater number of times, they were washed less. At the end of life, both types of jumpers showed significant reuse percentages. This information is useful for accurately modelling the inventory needed for assessing the environmental implication of apparel, using the life cycle assessment (LCA) methodology. By comparing New Zealand’s washing and disposal practises to those of other countries, this study found significant differences, highlighting the need for country-specific data for future LCAs.
Human Schistosomiasis Vaccines as Next Generation Control Tools
Authors: Hotez Peter J. , Bottazzi Maria Elena
Published: March 2023

Human schistosomiasis remains one of the most important yet neglected tropical diseases, with the latest estimates from the Global Burden of Disease Study indicating that over 140 million people are infected with schistosomes [...]
Drug Resistance Patterns of Commonly Used Antibiotics for the Treatment of Helicobacter pylori Infection among South Asian Countries: A Systematic Review and Meta-Analysis
Authors: Shrestha Abhigan Babu , Pokharel Pashupati , Sapkota Unnat Hamal , Shrestha Sajina , Mohamed Shueb A. , Khanal Surakshya , Jha Saroj Kumar , Mohanty Aroop , Padhi Bijaya Kumar , Asija Ankush , Sedhai Yub Raj , Rijal Rishikesh , Singh Karan , Chattu Vijay Kumar , Rodriguez-Morales Alfonso J. , Barboza Joshuan J. , Sah Ranjit
Published: March 2023

Background: In South Asia, resistance to commonly used antibiotics for the treatment of Helicobacter pylori infection is increasing. Despite this, accurate estimates of overall antibiotic resistance are missing. Thus, this review aims to analyze the resistance rates of commonly used antibiotics for the treatment of H. pylori in South Asia. Methods: The systematic review and meta-analysis was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement. We searched five medical databases for relevant studies from inception to September 2022. A random effect model with a 95% confidence interval (CI) was used to calculate the pooled prevalence of antibiotic resistance. Results: This systematic review and meta-analysis included 23 articles, 6357 patients, 3294 Helicobacter pylori isolates, and 2192 samples for antibiotic resistance. The prevalences of antibiotic resistance to common antibiotics were clarithromycin: 27% (95%CI: 0.17–0.38), metronidazole: 69% (95%CI: 0.62–0.76), tetracycline: 16% (95%CI: 0.06–0.25), amoxicillin: 23% (95%CI: 0.15–0.30), ciprofloxacin: 12% (95%CI: 0.04–0.23), levofloxacin: 34% (95%CI: 0.22–0.47), and furazolidone: 14% (95%CI: 0.06–0.22). Subgroup analysis showed antibiotic resistances were more prevalent in Pakistan, India, and Bangladesh. Furthermore, a ten-year trend analysis showed the increasing resistance prevalence for clarithromycin (21% to 30%), ciprofloxacin (3% to 16%), and tetracycline (5% to 20%) from 2003 to 2022. Conclusion: This meta-analysis showed a high prevalence of resistance among the commonly used antibiotics for H. pylori in South Asian countries. Furthermore, antibiotic resistance has been increasing over the time of 20 years. In order to tackle this situation, a robust surveillance system, and strict adherence to antibiotic stewardship are required.
Does Decentralized Food Crop Cultivation Threaten Water-Land-Food Nexus? A Spatial Econometric Analysis
Authors: Li Ziqiang , Li Xiaoyun , Wang Yajie
Published: March 2023

The coordinated development of the Water-Land-Food (WLF) nexus is important for realizing sustainable food production and ensuring national food security. Based on the symbiosis system theory, this study used the Entropy weight TOPSIS method to calculate the WLF nexus of 30 provinces, municipalities and autonomous regions in China from 2003 to 2019. Taking the problem of decentralized food crop cultivation in China as the breakthrough point and using the Panel Tobit Model to empirically explore the threat of decentralized food crop cultivation to the WLF nexus. The results indicated that: (i) The average level of decentralized food crop cultivation index in China for the period 2003–2019 is 2.599 and the growth rate is −12.64%, while the WLF nexus index is 0.317, and the growth rate is 2.42%. Decentralized food crop cultivation showed a fluctuating downward trend in all regions of China, especially in the southwest and northwest regions. However, the WLF nexus index level belonging to the northeastern and Huang-Huai-Hai regions of China is higher, which presents a trend of first decreasing and then increasing. (ii) While the extent of decentralized food crop cultivation threatens the coordination of the WLF nexus in China, it has a time lag. (iii) The decentralized food crop cultivation in non-food producing areas (NFPA) rather than major food producing areas (MFPA) will threaten the WLF nexus. (iv) Compared with the higher WLF nexus index region, the negative effect of decentralized food crop cultivation is more obvious in the lower index region. (v) WFL nexus in the adjacent provinces of China showed regional clustering. Decentralized food crop cultivation will threaten the WLF nexus both in the inner province and adjacent regions. This study argues that the government can use financial subsidies to correct the problem of decentralized food crop cultivation, optimize the level of agricultural outsourcing services, and improve the market for water and land rights, thereby enhancing the WLF system coordination in China.
Damage Model and the Influence Factors of Mitigation Engineering against Glacial Debris Flow in the Parlung River Basin, SE Tibetan Plateau
Authors: Lin Mingan , Gong Cheng , Huang Hai , Yang Dongxu
Published: March 2023

Understanding the damage mechanism of glacial debris flow mitigation systems is crucial for the risk prevention and assessment of the 200 km traffic corridor in the Southeast of the Tibetan Plateau, where the Sichuan-Tibet railway and expressway have been planned. Based on the phenomena, position and residual efficiency of damaged engineering, our analysis of satellite imagery and field investigation in multitype spatial reveals the damage types and influencing factors of glacial debris flow mitigation engineering. An evaluation model which can be used to estimate the engineering damage grade is established by using the relationship between mono engineering works and mitigation systems. In the new model, the engineering damage is divided into five grades: undamaged, slightly damaged, relatively damaged, seriously damaged, and totally damaged. For glacial debris flow in the Parlung river basin, the five grades of damage of mitigation works account for 8.70%, 34.78%, 21.74%, 13.04% and 21.74%, respectively. Furthermore, the soil source type and channel profile gradient are the key factors in engineering damage. Design defect of profile gradient is the controlling factor of damage in drainage channel engineering. Based on those results, an engineering damage model is established, which can provide an important reference for risk reduction and prevention of hazards due to the increasing development of traffic engineering.
Driving Factors and Trend Prediction for Annual Sediment Transport in the Upper and Middle Reaches of the Yellow River from 2001 to 2020
Authors: Wu Jingjing , Tian Jia , Liu Jie , Feng Xuejuan , Wang Yingxuan , Ya Qian , Li Zishuo
Published: March 2023

The Yellow River has long been known for having low water and abundant sediment. The amount of sediment transported in the upper and middle reaches of the Yellow River (UMRYR) has changed significantly in recent years, resulting in an obvious imbalance in the spatiotemporal distribution of the water resources in the Yellow River Basin (YRB). The changes in the sediment transport in the Yellow River significantly affect ecological security and socioeconomic development in the YRB. In this study, the Google Earth Engine (GEE) platform was used to obtain the potential driving factors influencing the five main gauge stations in the UMRYR: vegetation, soil moisture, population, precipitation, land types, etc. The data on the annual sediment transport (AST) were from the River Sediment Bulletin of China (2001~2020). Linear regression and the Mann–Kendall test were used to study the temporal variation in the AST. The first-order difference was determined from the original data to remove the autocorrelation, and it met the requirement of sample independence. The factors without collinearity were used for the driving force analysis using linear regression (linear model) and random forest regression (nonlinear model). We used the selected driving factors to establish the linear regression, the random forest model for predicting the AST, and cross-validation for verifying the prediction accuracy. Furthermore, the prediction outcomes were compared with the simplest ARIMA time-series model (control model). Our findings showed that the changing trend and the mutation of the AST were different in the UMRYR during the past 20 years. However, after the first-order difference of the AST, the amount of interannual variation in the annual sediment transport (ΔAST) was almost unchanged in the UMRYR. The five driving factors were chosen to establish the prediction models of linear regression and random forest regression, respectively. Compared with the control model, ARIMA, the prediction accuracy of the random forest model was the highest.
Pricing Strategy for a Virtual Power Plant Operator with Electric Vehicle Users Based on the Stackelberg Game
Authors: Liu Qiang , Tian Jiale , Zhang Ke , Yan Qingxin
Published: March 2023

With the popularity and promotion of electric vehicles (EVs), virtual power plants (VPPs) provide a new means for the orderly charging management of decentralized EVs. How to set the price of electricity sales for VPP operators to achieve a win–win situation with EV users is a hot topic of current research. Based on this, this paper first proposes a Stackelberg game model in which the VPP participates in the orderly charging management of EVs as a power sales operator, where the operator guides the EV users to charge in an orderly manner by setting a reasonable power sales price and coordinates various distributed resources to jointly participate in the power market. Furthermore, taking into account the impact of wind power output uncertainty on VPP operation, a robust optimization method is used to extend the deterministic Stackelberg game pricing model into a robust optimization model, and a robust adjustment factor is introduced to flexibly adjust the conservativeness of the VPP operator’s bidding scheme in the energy market. The model is then transformed into a robust mixed-integer linear programming (RMILP) problem solved by Karush–Kuhn–Tucker (KKT) conditions and strong dyadic theory. Finally, the effectiveness of the solution method is verified in the calculation example, which gives the optimal pricing strategy for the VPP operator, the optimal charging scheme for EV users, and the remaining internal resources’ contribution plan, providing an important idea for the VPP to centrally manage the charging behavior of EVs and improve its own operating revenue.
The Neglected Solutions: Local Farming Systems for Sustainable Development in the Amazon
Authors: Medina Gabriel da Silva , Barbosa Claudio Wilson Soares
Published: March 2023

The productive inclusion of local communities is one of the main challenges to sustainable rural development in the Amazon. Existing development initiatives often prioritize projects with exogenous production systems; thus, local systems are overlooked, despite their large coverage. Based on surveys conducted in 107 riparian communities and detailed case studies in eight communities doing ranching, logging, and fishing, this study describes local management systems developed by rural communities in the confluence between the Amazon and Xingu Rivers. The study showed that (1) local management systems for buffalo ranching, logging, and fishing agreements were found in 61%, 60%, and 21% of the 107 riparian communities, respectively; (2) these systems are based on local know-how and on technological solutions that are locally available; and (3) the improvement and consolidation of these local systems require governmental support. The study reveals that local and traditional farming practices may underpin sustainable development in the Amazon.
The benefits of building information modelling in construction noise control in the pre-construction phase (a focus on urban area constructions)
Authors: Babazadeh Nasim , Bargstädt Hans-Joachim
Published: March 2023

For inner-city construction activities, the propagated construction noise is considered the primary source of nuisance for the surrounding area. Due to the short distance between the site and neighboring buildings, passive noise control techniques such as noise barriers have a limited
mitigating impact. As a result, construction companies should anticipate encountering complaints and lawsuits from residents of adjacent buildings, leading to project delays or cost overruns. Previous studies for construction noise control have primarily focused on a real-time solution such
as data collection by sensors during the execution phase. Although the guidelines recommend that source management is the most effective method of controlling construction noise, there is no systematic approach for focusing on construction noise during the planning phase. Building Information
Modeling (BIM) has been widely used to achieve effective project management, such as time and cost control. However, the benefits of BIM for noise-considered time planning in the pre-construction phase still need to be exploited. This research will focus on the potential of BIM for addressing
construction noise as an additional factor during time planning. The findings show how multiple process plans using BIM-supported platforms can be planned and controlled to achieve the lowest risk of discomfort for neighboring area residents.
Modelling of Train Floor Sound Transmission using Coupled FE-SEA analysis
Authors: Orrenius Ulf , Teschner Mark , Kohrs Torsten
Published: March 2023

A hybrid FE-SEA numerical method is applied to calculate transmission and radiation properties of periodic structures typical for railway design. Train floor structures made from extruded aluminium profiles with and without interiors are analysed. Such structures are common in rail
vehicle design, in particular for high speed vehicles, and are typically subject to various noise control measures. Accurate and effective simulation models are key to reaching the acoustic design targets while respecting weight and cost budgets. The simulation concept applied, rests on that
an accurate Statistical Energy Analysis (SEA) representation of the structure is determined from a small FE model consisting of a few cells of the periodic structure. The FE model can be kept small and computationally efficient and the system model can for this reason be used for parametric
studies of the effect of design changes. Calculated transmission loss results are found to compare well to measured data. Also, mechanical power inputs due to point force excitation as well as radiation efficiencies are calculated and compared to measured data.
Resonance mode analysis of finite plate strip with acoustic black holes: the gap between bandgap and attenuation band
Authors: Han Bing , Ji Hongli , Qiu Jinhao , Cheng Li
Published: March 2023

Acoustic Black Hole (ABH) lattice structures show promise for achieving broadband bandgap in lightweight design. Existing ABH lattice research usually assumes that the bandgaps of infinite periodic structure are roughly the same as the attenuation band with strong energy attenuation
in the finite counterpart. This work is concerned with comparison of the real attenuation bandwidth of finite periodic ABH structures and the bandgap of the infinite counterpart. The plate strips consisting of different numbers of periodic ABH elements are considered. It is observed that the
bandgap-predicted attenuation band is split into two narrow attenuation bands, so that the periodic ABHs fails to ensure a broadband and continuous attenuation in the finite scenarios. Results show that there are resonance modes of finite plate strips with ABHs falling into the bandgap due
to the boundary reflection and would result in high transmission peaks within the bandgap-predicted attenuation band. This unexpected phenomenon suggests the gap between the attenuation bandwidth of finite periodic structure and the bandgap of the corresponding infinite one. Analysis shows
that the resonance mode of finite plate strips, which reduces the bandgap-predicted attenuation bandwidth, can be tuned by geometrically disturbing the periodicity and symmetry of the finite periodic configuration.
Vibration Isolation in Plates Using Flexural Cloaking
Authors: Nojavan Aidin , Langer Sabine Christine
Published: March 2023

Cloaking is a novel idea, where the incident waves are guided around a space called the core. The cloaking concept can be realized by engineering the material matrix around the core. Cloaks can be used to guide waves around an obstacle with minimum reflection and scattering. On the
other hand, they can be also used to isolate the middle core space, which makes cloaking an innovative potential noise control measure at challenging lower frequencies. Space isolation using cloaks can be beneficial for different applications such as architectural noise control or soundproofing
the cabin in automotive and aerospace industries. However, this interesting aspect of cloaking has not been investigated in the literature yet. In this study, a flexural cloak in a thin plate is modeled using finite element method to investigate the impact of cloaking on isolation of the middle
core numerically. The effect is examined using plane waves as well as concentrated force excitation. Moreover, the dependency of the isolation effect on the geometrical size of the core and the cloak is investigated with regard to the wavelength.
Chimera states in a can-annular combustion system
Authors: Guan Yu , Moon Kihun , Kim Kyu Tae , Li Larry K. B.
Published: March 2023

We experimentally investigate the collective behaviour of four turbulent lean-premixed combustors coupled in a ring network. We adopt a complex systems approach, treating each combustor as an individual self-excited thermoacoustic oscillator and examining how a minimal network of such
oscillators can self-organize into synchronous and asynchronous states. Using proven synchronization metrics, we identify a broad range of collective behaviour, including a weak anti-phase chimera, a breathing chimera, intermittent frequency locking, and three-frequency quasiperiodicity. The
discovery of chimera states in a minimal network of coupled thermoacoustic oscillators suggests that chimera control techniques could be exploited for the suppression of thermoacoustic oscillations in can-annular combustion systems.
Viewing the changes in community annoyance due to aircraft noise over the times
Authors: Yamada Ichiro
Published: March 2023

More than 60 years have passed since the introduction of jet aircraft to civil aviation, and technological innovations have made aircraft much quieter. Nevertheless, people still complain that they experience serious suffering from aircraft noise. This paper overviews and considers
the changes over the times both in the aircraft sound exposure level and in the community annoyance caused by aircraft noise. It will also discuss the issue of recent noise complaints associated with the introduction of performance-based flight navigation as well as view the impact of pandemics
over the past two years.
Linear time-continuous state-space realization of flame transfer functions by means of a propagation equation.
Authors: Brokof Philipp , J. J. Fournier Guillaume , Polifke Wolfgang
Published: March 2023

Low-order network models, commonly used to assess the thermo-acoustic stability of combustors, can be cast in a linear, time-continuous state-space representation. A standard linear eigenvalue problem for the system modes results, which can be solved in a robust and efficient manner.
To represent the linear dynamics of any time-invariant flame in the state-space framework, this study presents an approximation of the distributed time-delayed flame response to acoustic velocity perturbations based on a spatially discretized propagation equation (PE). We derive the rational
flame transfer function of a first-order-upwind-PE state-space model and discuss its relation to the Tustin approximation of flame transfer functions. For an exemplary discrete finite impulse response of a flame, a third-order-upwind-PE state-space model is shown to match the discrete flame
frequency response with comparable accuracy as a rational approximation found by non-linear optimization. The numerical dissipation introduced by discretization of the PE ensures zero gain above the Nyquist frequency of the underlying discrete flame impulse response. Finally, we apply the
PE state-space flame model to a generic Rijke tube and show that the predicted thermo-acoustic modes agree well with results obtained from a classical non-linearly optimized rational approximation of the frequency response function of the flame.
Sound Insulation Property of Waste Jute Fiber/Recycled High-Density Polyethene Composites
Authors: Mago Jonty , Sunali  , Negi Ashutosh , Fatima S.
Published: March 2023

Noise pollution is a potential threat to human health and the environment. Using acoustic materials (barriers/insulators and absorbers) in the noise path is a customarily approach for noise control. Nowadays, compared to traditional sound insulating materials (metals, gypsum and concrete),
polymers (plastics) have gained more interest among researchers because of their unique features like lightweight, ease of design, low cost, and available state-of-the-art technologies for mass production. Concurrently, the massive amounts of solid waste such as plastic, e-waste, garment waste
(textile) and agro residue end up in landfills or are incinerated. Disposal of these solid wastes through landfilling or burning in the air deteriorates the environment. Therefore, in the context of these problems, the present research aims to prepare sound-insulating material by utilizing
waste jute fibre (WJF) and recycled plastic (high-density polyethene-rHDPE) through compression moulding. The effect of WJF weight percentage on sound insulation property was studied. The prepared composites were thoroughly characterized for their properties related to sound insulation, i.e.,
density and tensile strength. The sound transmission loss of the composites was measured as per ASTM-E2611 using a four-microphone impedance tube setup. It was found that with the increase in WJF amount, the sound transmission loss was significantly improved. Moreover, the measured experimental
results were compared with the theoretical results computed from mass and stiffness law equations, which showed a good agreement.
Subjective evaluation of wind turbine noise using 3-dimensional audio- visual reproduction system
Authors: Yonemura Miki , Lee Hyojin , Sakamoto Shinichi
Published: March 2023

In recent years, the installation of new wind turbines has been promoted in Japan. Since wind turbines are often installed in quiet countryside, it is necessary to properly evaluate the noise impact of wind turbine installation. Since wind turbines are thought to have visual as well
as auditory effects, we conducted a subjective evaluation experiment on the loudness and annoyance of wind turbine noise (WTN) and road traffic noise (RTN) by magnitude estimation method, using a three-dimensional audio-visual reproduction system consisting of 6 channels of loudspeakers installed
around the sound receiving point and a dome screen. As a result, the loudness and annoyance of WTN tended to be evaluated higher than that of RTN. These results were considered to be influenced by the amplitude modulation called "swish sound" and the low-frequency dominant frequency
characteristics, which are characteristics of WTN. In addition, when comparing the differences in loudness and annoyance with and without visual information, the two attributes tended to be lower when visual information was present.
A recent feedback of wooden multi-storey buildings in France
Authors: Toulemonde Thomas , De Bastiani Bertrand
Published: March 2023

Wooden structures are becoming quite common in the French architectural landscape, and ACOUSTB has made it a specialty regarding acoustics. Its experience ranges from office buildings to residential buildings, and from small to high-rise constructions. Airborne and impact noise insulation
are of first importance. Structural aspects, construction methods and architecture are also discussed. Constructive solutions concern both CLT and traditional wood joists flooring systems, alternatives to floating screeds in office buildings and visible wooden structures in dwellings. Buildings
are described, then selected constructive solutions are presented and debated with respect to targeted acoustic performance. Finally, in-situ measurement results are compared with the theory that underlays them, as well with the targeted performance.
Subjective assessments of interference during cognitive tasks in noisy and silent working conditions
Authors: Sukowski Helga
Published: March 2023

In a current research project on effects of noise on cognitive performance and wellbeing, some scales for subjective assessments with respect to the task execution are applied. The aim is to gain insight into how participants experience task processing in different background sound
conditions. In the laboratory, participants work on a proofreading task and a concentration task twice within an interval of around one week, once in a silent condition and once in one of various conditions with a background sound. In both sessions, participants are asked after each task to
assess four aspects with respect to task processing: (1) experienced effort, (2) concentration, (3) performance and (4) disturbance by the acoustical condition. The scales range from 0 to 100. First, data will be analysed regarding the differences between the assessments in the condition with
and without background sound for each sound condition and separately for the two performance tasks. Once all sound conditions are completed, the analysis of the comparison between the groups with different background sound conditions will follow. For both tasks, initial findings for the first
sound condition suggest significant differences in the assessments of the scales "concentration" and "disturbance" between the condition with and without noise.
Experimental observation of the sound field around a moving source using parallel phase-shifting interferometry
Authors: Akutsu Mariko , Uda Toki , Oikawa Yasuhiro , Yatabe Kohei
Published: March 2023

Railway noise is still one of the issues in the wayside environment despite of various countermeasures. For effective countermeasures, it is important to reveal characteristics of sound sources and sound propagation. Using parallel phase-shifting interferometry (PPSI) which measure
the air density by interfering the reference light with object light, we tried to observe the sound field around a moving source. This system utilize laser and high-speed camera makes it possible to observe unstedy phenomena and visualize sound waves accurately. As a moving source, a speaker
emitting 40kHz sinusoidal sound was mounted on a model, and the model was launched at 100 km/h. As A result, we succeed in observing the sound waves generated from the moving source clearly and visualizing the frequency modulation by Doppler effect. Furthermore, the result was averaged in
sub-pixel to understand easily. These results clearly show the difference in frequency depending on the relative position to the sound source as it is in theory.
An investigation on source identification of very high frequency sounds radiated from home appliances around us.
Authors: Harusawa Koki
Published: March 2023

We investigated the azimuth angle characteristics of head related transfer function (HRTF) at very high frequency region using two kinds of head and torso simulators (HATS). In the measurement of hearing thresholds, there are two ways using a headphone or a loudspeaker. In general,
it will be carried out using a loudspeaker because sound pressure calibration and measurement are simple. However, the hearing threshold which measured using a loudspeaker at very high frequency region may contain some errors because sound pressure level (SPL) reaching the ear are seriously
affected by a small movement of the head. Also, the SPL near the pinna seriously depends on both shapes of a pinna and a head because excess attenuation by diffraction of VHF sound is very large. To provide assurance for the accuracy measurement of hearing threshold, it is important to make
clear the relationship between the SPL and shape of head and/or ear. In this paper, we reported the HRTFs calculated from the SPLs measured at three different positions of left ear - a tragus, an auricle and an eardrum and discussed the influence of head and/or ear of HATS from the azimuth
angle characteristics of these HRTFs.
An Heuristic Prediction Method for Managing Environmental Blast Noise Impacts
Authors: Manuel Gethin , Waddington David
Published: March 2023

The aim of this work is to manage adverse environmental impacts from long-range blast noise. The work was carried out as part of ongoing research at the DNV Spadeadam Testing and Research site (STaR). STaR carries out crucial major hazards work including improving safety concerns within
industry decarbonization sectors and government agencies. The site performs a variety of explosives testing, resulting in environmental blast noise at off-site residential locations. The site is surrounded by complex topography, with terrain featuring range-dependent ground impedance and thermal
properties which in turn effects the local meteorology. While accurately modelling blast wave propagation through such environments using traditional computational methods is a computationally expensive task, the required complex and rapidly varying meteorological data are not adequately available.
To address this deficiency, a data-driven heuristic method is proposed for the prediction of blast noise levels at several sensitive receivers ranging from 4-14km. The model is formed from a preliminary dataset of off-site blast noise measurements, correlated with a multivariate array of available
meteorological data. A principal component analysis is used to determine the atmospheric features which are most influential to sound propagation, and predict the likely range of peak sound pressure levels expected. It is concluded that useful predictions over time scales from an hour to a
number of days can be obtained for managing environmental blast noise impacts, and that further measurements of blast noise, along with further correlations with measured atmospheric conditions, could improve the performance of the model.
The WHO Environmental Noise Guidelines and noise policy in Denmark - the case of noise from motorways
Authors: Thers Jens Schultz
Published: March 2023

The WHO Environmental Noise Guidelines and noise policy in Denmark Studies from Denmark - and a background article from the WHO report on Environmental Noise Guidelines from 2018- supports the Danish noise limit on Lden = 58 dB for ordinary roads for 10 % highly annoyed. Other studies
however shows that motorways are more annoying - close to WHO guidelines at 53 dB. A Danish investigations point to Lden = 52 dB for 10 % highly annoyed for motorways. A Swiss study suggests Lden 51 dB for 10% highly annoyed for motorways. According to the studies the Danish EPA has made an
investigation of the consequences for new motorways and urban planning - if the guidelines would be changed from 58 dB to 53 dB. It shows the difficulties for urban planners if the noise limit would be changed - but also that it is fact possible to lower the limits technically - through speed
limits, noise barriers etc. The study also shows that new projects for new housing economically would be difficult outside larger cities - because of increasing cost. This paper shows what policy implications this entails in Denmark.
A 2.5D automatic FEM-SBM method for the evaluation of free-field vibrations induced by underground railway infrastructures
Authors: Liravi Hassan , Arcos Robert , Clot-Razquin Arnau
Published: March 2023

This paper presents an efficient method to predict underground railway-induced vibrations. The method uses the finite element method (FEM) to model the railway tunnel structure and the singular boundary method (SBM) to model the wave propagation in the surrounding soil. The FEM mesh
and the distribution of SBM collocation points at the tunnel/soil interface are generated using an automatic meshing strategy. The presented method is one of the main components of VIBWAY, a user-friendly prediction tool to address railway-induced vibration problems. This paper presents three
calculation examples in which the soil response due to forces applied on the tunnel structure are computed in terms of transfer functions. The results obtained for each one of the calculation examples are compared with those computed using a model based on a 2.5D FEM-BEM approach. The presented
comparisons show that the proposed approach is a suitable strategy for predicting underground railway-induced vibrations, both in terms of accuracy and computational efficiency. Moreover, the use of an automatic meshing strategy and the SBM formulation not only eases the implementation of
the approach but it also makes it easier to use, which is one of the key features of the VIBWAY tool.
Topology optimization of single and double panels for improved sound insulation in specific frequency bands
Authors: Giannini Daniele , Schevenels Mattias , Reynders Edwin
Published: March 2023

Single and double panels are commonly employed in noise control, e.g., as partitioning elements between rooms and to enclose noisy machines. In presence of narrowband disturbances, related for example to rotating machines, further improvements in sound insulation can be obtained by
properly distributing the material within the area of the panels. This allows maximizing the sound Transmission Loss (TL) in the frequency band of interest by controlling structural resonances and antiresonances. In order to achieve this goal, in this work, we apply numerical topology optimization
to find the optimal material thickness distribution for single and double panels. In the iterative design process, single panels are schematized through a simple mechanical Finite Element (FE) model, while double panels are modelled considering the vibroacoustic coupling between the two mechanical
plates and the internal acoustic air cavity. The sound insulation properties of the designed solution are evaluated by TL computations through hybrid Finite Element-Statistical Energy Analysis (FE-SEA) simulations. The method is applied targeting different frequency bands in the audible range
and focusing on practically relevant design cases, such as single and double PMMA and glazing panels.
An experimental study for sustaining the architectural heritage value of traditional houses of Bursa
Authors: Öztürk Rengin Beceren , Çahantimur Arzu , Özgünler Seden Acun
Published: March 2023

Bursa, the first capital of the Ottoman Empire, is one of the rare historical cities that has survived to the present day without losing its importance. As well as monumental structures such as mosques and Sultan complexes, traditional Bursa houses are also components of architectural heritage that  reflect the identity of the city. The traditional building materials of these houses are wood, stone, brick and earth. Today, these materials are known as ecological building materials and their use is very important to ensure sustainability. Especially the application of traditional building techniques based on the use of these materials in restoration works is of great importance in terms of ensuring sustainability not only from an ecological point of view, but also from economic and cultural points of view. In this context, earthen building material consisting of natural raw materials and created by human hands are seen as ecological and renewable building materials. In different parts of the world, many civilizations have used earthen building materials with different usage techniques in the past. This material has not lost its importance to this day. In this study, the earthen building materials used in traditional Bursa houses are examined and their role in sustainable architecture is pointed out. For this purpose, a case study was conducted on traditional Bursa houses in three different historic neighborhoods; Hisar, Tuzpazari and Reyhan regions. Representative earthen building materials were taken from 22 traditional houses and listed with their qualities for experimental studies. Characterization tests were carried out on the samples taken from these houses. The results of the experiments have been used to develop some recommendations for the successful implementation of restorations that will help to carry out sustainable heritage conservation work in Bursa.
Perancangan Prototipe UI/UX Website CROWDE Menggunakan Metode Design Thinking
Authors: Arisa Nursanti Novi , Fahri Muhammad , Putera M. Ihsan Alfani , Putra M. Gilvy Langgawan
Published: March 2023

Berkembangnya teknologi di era digital saat ini sangat mempengaruhi berbagai sektor industri. Industri yang berdampak atas perkembangan teknologi informasi adalah sektor industri di bidang keuangan atau fintech (Financial Techology). CROWDE merupakan perusahaan yang bergerak di bidang usaha financial technology menghubungkan petani dan pengusaha tani dengan pemodal. Permasalahan yang sedang dihadapi oleh perusahaan CROWDE yakni target pasar yang dijangkau saat ini oleh website CROWDE hanya menjangkau 1 target saja yakni petani. Hal tersebut yang membuat CROWDE ingin merancang ulang tampilan antarmuka dan pengalaman pengguna terhadap website CROWDE. Adapun tujuan penelitian dilakukan untuk menjawab permasalahan yang sedang dihadapi oleh website CROWDE, menghasilkan rekomendasi berupa hasil solusi desain dan menghasilkan hasil analisis evaluasi terhadap solusi desain atau redesign website yang telah dibuat dari segi aspek kemudahan. Fokus penelitian ini yaitu melakukan perancangan ulang Platform Website CROWDE dari segi tampilan antar muka (User Interface) dan pengalaman pengguna (User Experience) dengan menggunakan metode desaign thinking. Tahapan penelitian yang dilakukan menggunakan pendekatan design thinking yang terdapat 5 tahapan seperti empathize, define, ideate, prototype, dan test. Hasil penelitian yang didapatkan yaitu kategori permasalahan website saat ini mulai dari segi copywriting, customer service, dan alur sistem. Kemudian untuk hasil solusi desain atau mockup yang dihasilkan sebanyak 12 menu. Tahapan pengujian terhadap 8 task dinyatakan berhasil dari segi aspek kemudahan terhadap solusi desain yang telah dibuat dengan nilai rata-rata lebih dari 5,5 untuk setiap task yang dikerjakan telah dikerjakan responden.
Improving the system of classification of binders, molding and core
mixtures in foundry production
Authors: R Liutyi , M Yamshinsky , V Seliverstov , V Ivanov
Published: March 2023

The emergence of new scientific and technological developments, including the creation of binders (LC) with previously
unexplored structure and properties, requires establishing their place among other materials, which ultimately determines the scope of their application and creates conditions for introduction into production.
Department of Foundry Production KPI. During 2010-2021, Igor Sikorsky created a number of new ecological phosphate-class LCs, which have original synthesis schemes and differ significantly from the previously known metalphosphate LCs in foundry production. The creation of these materials and the positive results of their laboratory tests
necessitated their comparative analysis with other LCs and classification according to generally accepted criteria.
The article presents a brief description of 12 developed LCs. An improved system classification for chemical nature and
specific strength has been created, which covers all known world samples, as well as new materials have been created.
All possible variants of physicochemical processes that lead to the hardening of molding and core mixtures are analyzed
and on this basis a new system classification is created. This system can be considered as a scientific basis for the
choice of technological modes of strengthening molds and rods, analysis of their behavior after pouring and during
knocking out molds, the possibility of reuse and regeneration of mixtures.
Structured sand-sodium-silicate mixtures gluing with sodium silicate solute
Authors: L Solonenko , S Repiakh , K Uzlov , L Ivanova
Published: March 2023

Purpose – method of gluing with pure silicon silicate solute (SSS) molds and cores made of structured sand-sodiumsilicate mixtures (SSSM) investigation, which solidification has been realized by microwave radiation, and engineering
method for calculating the minimum admissible tensile strength of gluing joint for structured mixtures elaboration.
Methodology. Quartz sand grade 1K3O3016 and RS (GOST 13078-81) with silicate modulus of 2.9 and specific density of 1.44 g/cm3
has been used in this study. Samples processing that were glued with microwave radiation have been
carried out in microwave furnace with nominal magnetron power of 700 and 900W and radiation frequency of
2.45GHz.Mixtures tensile strength has been determined on LRu-2e device using figure-eight samples.
Results. Method for minimum admissible tensile strength of gluing joint calculating has been developed. Taking into account its value in casting molds and rods manufacturing development will ensure molten-filled molds integrity and prevent rods displacement or separation installed in them. It has been established that pure silicon silicate solute can be
used as gluing material solidifying by microwave radiation for bonding SSSM structured by steam-microwave solidification process (SMS-process).It has not been recommended to use SSS in original form as gluing material solidified by
microwave radiation for bonding SSSM structured by convection heat drying.
Scientific originality. For the first time, phenomenon of sodium silicate solute and quartz sand saturated with sodium
silicate solute in structured SSSM simultaneous transfer during their treatment with steam-microwave radiation and new
capillary-porous structures with sodium silicate increased content in them appearance have been established.
Practical value. Method for calculating the gluing joint minimum permissible strength under tension will allow to obtain
practical data, taking into account which, when casting molds and rods manufacturing technology developing, will ensure molds integrity when they are filled with melt and prevent rods installed in themd is placement or separation. This
will generally improve castings quality. Pure SSS applying in casting molds and rods made by SMS-process gluing
joints manufacturing will reduce castings production cost due to eliminating of other gluetypes using.
Keywords: sodium silicate solute, microwave radiation, mold, rod, mixture, strength, gluing
Ortaokul Öğrencilerinin Türkçe Dersi Akademik Başarılarının Davranış Notları Bağlamında İncelenmesi
Authors: DEMİR Selvi
Published: March 2023

Bu çalışmada ortaokul öğrencilerinin Türkçe akademik başarılarının “okul kültürüne uyum, öz bakım, kendini tanıma, iletişim ve sosyal etkileşim, ortak değerlere uyma, çözüm odaklı olma, sosyal faaliyetlere katılım, takım çalışması ve sorumluluk, verimli çalışma, çevreye duyarlılık” değişkenlerine göre incelenmesi amaçlanmıştır. Bu amaç doğrultusunda 2021-2022 güz döneminde Kilis il merkezindeki dört devlet ortaokulunda öğrenim görmekte olan toplam 324 altıncı sınıf öğrencisinin ders notları ve davranış notlarını gösteren “öğrenci not döküm cetveline” ulaşılmıştır. Elde edilen veriler SPSS 23 programı aracılığıyla analiz edilmiştir. Araştırmanın sonuçları ortaokul altıncı sınıf öğrencilerinin Türkçe ders notu ortalamasının iyi düzeyde olduğunu göstermiştir. Bunun yanı sıra ortaokul öğrencilerinin Türkçe akademik başarıları puanlarıyla davranış puanları arasında pozitif yönde anlamlı bir ilişkinin olduğu ve davranış düzeyi çok iyiye doğru gittikçe Türkçe dersi akademik başarısının da genel anlamda arttığı sonucuna ulaşılmıştır.
Ortopedik Engelli Bireylerde İyi Oluş ve Sosyal Dışlanma Arasındaki İlişkinin İncelenmesi
Authors: CİMİNLİ Alaattin , YILMAZ Ahmet Tunahan , KAZDAL Cengiz
Published: March 2023

Sosyal bir canlı olan insan çevresiyle ilişki kurmaya ve olumlu yaşantılar geçirmeye ihtiyaç duymaktadır. Çeşitli nedenlerden ötürü bu ihtiyaçları karşılanamayan kişiler birçok sorunla karşı karşıya kalmaktadır. Toplumda gerek fiziksel gerek psikolojik açıdan ihtiyaçlarını karşılama noktasında toplumsal desteğe en çok gereksinim duyan grubun ortopedik engelli bireyler olduğu düşünülmektedir. Bu çalışmada ortopedik engelli bireylerin iyi oluş düzeyleri ile sosyal dışlanma düzeyleri arasındaki ilişkinin incelenmesi amaçlanmaktadır. Araştırma korelasyonel modele göre tasarlanmıştır. Araştırmada ortopedik engelli bireylerin sosyal dışlanma düzeylerinin iyi oluşlarını yordama düzeylerini belirlemek amacıyla doğrusal çoklu regresyon analizi uygulanmıştır. Çalışmadan elde edilen sonuçlara göre sosyal dışlanma ile iyi oluş arasında ilişki bulunmaktadır ve sosyal dışlanma iyi oluşun %28’ini açıklamaktadır.