bluuebunny/crossref_metadata_2025 huggingface dataset:
Prediction of sound radiation using reconstructed acoustic free velocity sources
Authors: Yan Xin , Herrin David
Published: June 2023

A complicated source can be represented by a series of acoustic free velocity sources. The sound pressure at a position in the field can be predicted by summing the products of the acoustic free velocity source strengths and their respective transfer functions. These transfer functions
relate the sound pressure in the field to the acoustic source strength. In this research, the sound pressure is measured at positions in the free field and then is used to determine the acoustic free velocity source strengths via an inverse method. The approach is applied to characterize a
laboratory source with high directivity. It is then demonstrated that the sources can be used to predict the insertion loss of a barrier introduced to block the source from the receiver.
A model for near-perfect transmission through lossy media with acoustic sources
Authors: Geib Nathan , Wallen Samuel , Haberman Michael , Naify Christina
Published: June 2023

Acoustic metamaterials exhibit effective material properties not found in naturally occurring media, and, as such, have received considerable attention for their potential applications in noise and vibration control, diagnostic imaging, and nonreciprocal transmission. Complementary
acoustic metamaterials have been proposed as a means of compensating for the high impedance mismatches of aberrating layers that disrupt the acoustic field and hence distort acoustic images. More recently, a complementary acoustic metamaterial featuring active components was shown in principal
to compensate for both the impedance mismatch and energy attenuation of lossy materials, but a physical realization of the concept has not yet been implemented. Here, we present results from a one-dimensional acoustic model showing how a plane wave incident on a lossy material can be augmented
by point monopole and dipole sources to allow for near perfect transmission, thus rendering the lossy medium acoustically transparent. We present general expressions for source magnitudes that are dimensionless with respect to frequency, material thickness, and the background medium. We show
that these results are consistent with three-dimensional finite element simulations, where the appropriate monopolar and dipolar forces are generated using finite dimensional velocity sources with real loudspeaker characteristics mounted in an acoustic waveguide.
Concerns with terminologies and test methods related to material characterization and simulation
Authors: Saha Pranab , De Alba Alvarez Ricardo
Published: June 2023

Sound package development in the transportation industry has taken a very different role in the past two decades. Instead of relying totally on measurements, acoustic engineers are relying on various numerical methods to characterize the acoustic performance of materials as well as
predicting the interior noise levels and other products in the transportation industry. In doing these analyses, often one needs some measured data of different variables such as thickness and air flow resistance properties of an insulation material, and insertion loss properties of materials
used for sound blocking purposes. This paper presents an overview of different standards and specifications that are often followed to measure and estimate these required input values.  Results obtained using different methods are not always comparable with each other and therefore have
the potential to obtain incorrect conclusion. The paper provides some case studies of inconsistent results because of that.
Excess vibration and noise on gas turbine exhaust silencer
Authors: Liang Paul
Published: June 2023

This particular gas turbine silencer experience excess vibration at a critical operating condition especially on a large powerplant applications. The vibrations seem to be more pronounced on cold winter days when the turbine load exceeds 110 MW. The excess vibration disappeared when
it passed the critical operating condition to its maximum load 113 MW. The 18.5 Hz mode dominated the vibration spectrum. The mode consisted of a rocking motion of the entire silencer and a local deflection of the silencer walls. The experimental mode shapes corresponding to the 18.5 Hz will
be discussed. A CFD (Computational Fluid Dynamics) analysis will be used to assess the flow-induced vibration problems.
Dynamic characterization of off the shelf polymer composites printed with fused deposition modeling
Authors: Naify Christina , Stephens James , Benavi Aytahn
Published: June 2023

Fused deposition modeling (FDM) is the most common and cost effective form of additive manufacturing (AM). Due to the ubiquity of the approach, a range of off the shelf composite materials have been developed by companies, often with the goal of improving the printed part's physical
appearance or increasing or decreasing the weight of the part. These composites typically have a base material of a standard FDM printed polymer, with additives such as metal particulates or lightweight filler added. This study will examine the dynamic properties of a set of off the shelf
materials to characterize acoustic sound speed, complex elastic moduli, and loss. All of the materials in this study have a base material of polylactic acid (PLA) making it possible to easily print them into multi-material structures. The filler materials showed minimal impact on some viscoelastic
properties but resulted in significant changes in acoustic sound speed. Characterization of this type is a critical component in development of an expanded database of material properties for use in design.
Outdoor Concert Hotel Acoustics
Authors: Trubakoff Jordan , Hord Samuel , Dickerson Mike , Pearson Robert , Irarrazabal Francisco , Edelman Rachel
Published: June 2023

VAI Resort, situated across the street from the site of Super Bowl LVII, presents a number of acoustical challenges, not the least of which is a world-class, 360-degree outdoor performance venue. Performers will blast an 8-storey hotel located 250 ft away with music of all types, which
audiences will enjoy from the balconies of their hotel rooms. The challenge of modeling such a venue comes in simplifying it down to manageable pieces. Does a balcony with a hotel room behind it behave like a Helmholtz resonator? How do the acoustics change if 90% of the balconies are open
to the hotel rooms beyond? What if 50% are open? 25% are open? Such a variable acoustic space presents a significant modeling challenge. A methodology for tackling such a large-scale project is presented, with modeling results, auralizations, and comparisons to real-world measurements. Findings
include a swing in RT60 of more than 25% when all balcony doors are opened versus closed.
Light rail wheel/rail noise radiation model using a coupled FE-BE method
Authors: Layman Christopher , Nelson James
Published: June 2023

This paper presents the development of a coupled finite element - boundary element model of rolling noise from a resilient light rail wheel on several types of tracks. The vibro-acoustic model utilizes a 3D elastic solid representation for both wheel and rail which are excited by linearized
Hertzian interface loads. Estimates of the radiated sound power, radiation efficiencies and wayside noise levels are obtained and then scaled using a parallel impedance framework and a roughness profile. Results are compared to recently measured vehicle passby noise and track decay rates at
Sound Transit in Seattle Washington.
Tradeoff between mass sensitivity and performance in quasi-zero stiffness vibration isolators
Authors: Gilmore Paul , Gandhi Umesh , Shaihan S M Syed , Rangarajan Ramsharan
Published: June 2023

Quasi-zero stiffness isolators are a promising technology to reduce vibration transmission over a large frequency range while maintaining passive operation and low cost. Many different types of QZS isolators have been demonstrated utilizing a variety of mechanical, pneumatic, and magnetic
components. While some of these types have their own unique challenges, other challenges are more general. Two of these challenges are mass sensitivity and hysteresis in the load-deflection curve caused by snap-through buckling, friction, or structural damping. This work investigates the impact
of force-deflection hysteresis on isolation performance through experimental techniques. Results show that increasing hysteresis reduces the mass sensitivity but worsens the isolation performance at low frequencies. A tradeoff must be made between these two aspects but can be overcome by shifting
the QZS region to difference forces. A simple method to achieve this adaptability exists for certain types of QZS structures, therefore enabling a variety of practical applications within a certain design window.
Measuring the sound isolation of doors with ASTM test standards: A case study update
Authors: Clausen Devin
Published: June 2023

At Inter-Noise 2021, a case study was presented involving performance compliance testing conducted at a university's media facility where the test methods of both ASTM E2964 and ASTM E336 were applied to assess the performance of sound-rated door assemblies. This paper provides an update
on the application of the described ASTM testing standards through follow-up testing that was conducted after field adjustments were made at the media facility. The paper compares the resulting door transmission class ratings to the apparent sound transmission class ratings and examines the
influence of field adjustments on each rating class.
Techniques for improved precision of environmental noise modeling
Authors: Wolf Ben
Published: June 2023

Environmental or outdoor noise models can produce results that are highly dependent upon a wide variety of factors. Even situations which appear to be straightforward can be subject to subtle influences which can significantly affect the modeling results. This paper covers several techniques
that can be used to provide more precise results of outdoor noise models. Examples of lessons learned are also provided, along with a discussion of factors that should be included in each model and scenarios that require specific modeling techniques. These scenarios include time-varying effects,
such as moving sources and changing topography, as well as indoor-to-outdoor sound propagation. The software package discussed in this paper is SoundPLAN, but the techniques described can be applied to other commercially available software packages for environmental noise modeling.
Review of utilization of short concrete noise barriers as noise an abatement strategy
Authors: Owolabi Oludare , Aina Joseph
Published: June 2023

The initial construction cost of barriers has led to considerable interest by local Transportation agencies and the Federal Highway Administration (FHWA) to assess alternatives such as short noise barriers. Many agencies have found that the utilization of short concrete safety barriers
as a noise mitigation strategy is highly beneficial. However, not much evaluation data is available to satisfy the FHWA noise requirements or to satisfy the Noise Reduction Design Goal (NRDG) (Noise Barrier Acceptance Criteria Analysis Publication No. FHWA-HEP-16-017). This paper presents
an extensive review of the utilization of short concrete noise barriers as a noise abatement strategy. The study also reviews the relevant research, methodologies, tools, and technologies that have been used in evaluating the reasonableness and feasibility of this strategy. Various modeling
techniques that can realistically model the insertion loss of short concrete noise barrier were also reviewed. A few proprietary short noise barrier systems were also evaluated for their reasonableness and feasibility. The study reveals a state of the practice survey of all DOTs with respect
to the adoption and implementation of short noise barrier. The paper ultimately highlights the effectiveness, cost, use and implementation methodology of short solid barriers as an effective noise abatement strategy.
FMVSS 141 for Commercial Vehicles: Applicability and Limitations
Authors: Seward Brett , Gorodisher Alex , Rubino Lorenzo
Published: June 2023

Newly manufactured light-duty hybrid and electric passenger vehicles must comply with FMVSS 141 minimum sound requirements to reduce the risk of crashes with visually impaired and inattentive pedestrians. Commercial vehicles operate in a variety of noise-critical environments, from
densely packed industrial yards to congested urban areas, making safe electric vehicle operation around pedestrians and bystanders vital. Though the market share of medium and heavy-duty hybrid and electric vehicles is projected to increase annually, there are currently no North American regulations
specifically for minimum sound emissions of hybrid and electric vehicles heavier than 10,000 lb. GVWR. The primary intent of this paper is to investigate the efficacy and limitations of the current FMVSS 141 requirements when applied to heavy-duty electric trucks. Serving as a complementary
test case, a Class 8 Freightliner eCascadia electric truck with onboard Acoustic Vehicle Alerting System (AVAS) was evaluated at Daimler Truck North America's High Desert Proving Grounds in accordance with the FMVSS 141 procedure for light-duty passenger vehicles. Analysis of the measured
data found the FMVSS 141 forward gear criteria to be reasonably effective when applied to the test vehicle, but the standard's reverse gear criteria were deficient to other common industry-accepted backing alert methods. These results are used as a starting point for a discussion on various
aspects of FMVSS 141, with an emphasis on how adding commercial vehicles to the scope of the standard could necessitate further changes to the defined acceptance criteria.
Considering Electric Measurements for NVH - Voltage, Current, and Torque Ripple
Authors: Marks Mitch
Published: June 2023

The study of electronics, motors and mechanical noise and vibration have often been treated as separate fields in R&D, Production, and test/validation. In electric powertrains, the electric and mechanical must be designed and tested in parallel to really understand the machine operation.
This paper will highlight an existing link between the electrical and mechanical noise in electric powertrains and what measurement/analysis tools are available for performing an NVH analysis including electrical measurements.
A New Method for Controlling Vibration in Automotive Applications: Circular Force Generator Technology
Authors: Norris Mark A. , Barbulescu Stefan , Kintz Andy , Orzechowski Jeff , Sanderson Michael , Sanderson Brad
Published: June 2023

Automotive Noise Vibration and Harshness (NVH) continues to be critical to address in passenger vehicles, especially as new vehicles today emphasize the use of lighter weight materials that create even more challenging NVH issues. NVH can negatively impact drivability and comfort, as
well as perceived vehicle quality. Moreover, with the development of increased driver ergonomic technologies and capabilities (audible or otherwise), NVH continues to be key in allowing these technologies to be fully effective. Both passive and active control technologies are used extensively
to improve automotive NVH. The use of active noise and vibration control has become a standard solution approach in vehicles, especially to mitigate low-frequency noise and vibration inside the vehicle. Linear actuators have been used in active engine mounts as well as frame vibration control
to mitigate passenger cabin NVH. This paper introduces a new lightweight approach for active vibration control for automotive applications. Controllable Circular Force Generator (CFG) technology is introduced to displace the use of larger, heavy linear electromagnetic technology, and is shown
to provide improved performance with lower weight and cost.
Tonality Perception Lessons Learned
Authors: Oppenheimer Charles H.
Published: June 2023

The future is expected to bring Advanced Air Mobility (AAM) vehicles, including small unmanned aerial systems (sUAS), urban air mobility (UAM) vehicles and regional air mobility (RAM) vehicles. These manned and unmanned vehicles are propelled by rotors. Rotors tend to generate tonal
sound as their blades interact periodically with airflow features. Since people are more sensitive to tonality, including tones, than broad band sound, AAM generated tonality is expected to be an important consideration for design. In this paper several tonality metrics are examined for their
ability to explain perceived annoyance of AAM flyover noise as measured by NASA's Rotorcraft Sound Quality Metric 1 (RoQM-1) test. The various investigated metrics use one-third octave band, narrow band, and autocorrelation analysis. It is observed that tonality influences but does not control
perceived flyover noise annoyance due to other sound qualities like roughness, consistent with previous work. The metrics are also examined for their ability to explain perceived tonality of sounds generated by IT equipment. The metrics based on autocorrelation are observed to best explain
perceived tonality while also being among the best for explaining flyover annoyance. The plausibility of the auditory nervous system as a physiological auto-correlator is discussed.
Remotely Administered Psychoacoustic Test for sUAS Noise to Gauge Feasibility of Remote UAM Noise Study
Authors: Krishnamurthy Siddhartha , Rizzi Stephen , Biziorek Ryan , Czech Joseph , Berg Jeffrey , Tannler Dillon , Bean Devin , Ayrapetyan Arman , Nguyen Andrew , Wivagg Jonathan
Published: June 2023

The National Aeronautics and Space Administration (NASA) remotely administered a psychoacoustic test in fall of 2022 as the first of two phases of a cooperative Urban Air Mobility (UAM) vehicle noise human response study. This first phase, described here, was a Feasibility Test to compare
human subject responses with a previous in-person psychoacoustic test that found an annoyance response difference between small Uncrewed Aerial System (sUAS) noise and ground vehicle noise. This paper discusses the Feasibility Test online layout, sound calibration method, software development,
stimuli selection, test subject recruitment, and test administration. Test performance is measured through comparison of annoyance response data with the previous in-person test. The test also investigated whether a contextual cue to test subjects influenced their annoyance response. Response
differences between test subjects in geographically distinct areas are analyzed. Administrative challenges that were encountered during the test are discussed, and improvements to administering subsequent remote tests are recommended.
Bus Cabin Noise Predictions of Large HVAC System using Total Noise Method
Authors: Kandekar Ambadas Bhaguji , Jantzen Andreas , Jain Ayush , Baghel Devesh , Virupakshaia Darshan , Doshi Sohin
Published: June 2023

HVAC system design has an accountability towards acoustic comfort of passengers of a vehicle. Owing to larger cabin volume of a bus, multiple air blowers have to be installed to ensure comfort of passengers. Such multiple blowers produce significant flow induced noise inside the cabin.
For commercial success, it becomes essential to predict intensity of such a flow induced noise at very early stages in product development. Conventionally sliding mesh based CFD approach is deployed to predict flow and turbulence noise around each blower. However due to complexity, this method
becomes computationally intensive resulting in cost and time inefficiency. Hence it is desirable to innovate around an alternative rapid, reliable prediction method, which ensures quick turnaround of prediction. This paper describes a unique innovative approach developed around a multiscale
method where flow induced noise generated by a single blower in motion is predicted using commercial Lattice Boltzmann CFD software with a digitally scaled down HVAC system in an anechoic digital wind tunnel. These CFD predictions are used to replace all blowers with virtual stationary speakers
inside digital cabin to emulate noise emanated by a large HVAC unit. Authors named this method as total Noise Multiscale Approach, in the paper. With the total multiscale approach, overall sound pressure level predicted inside the bus cabin at rear passenger ear levels are comparable with
the physical test measurements and has shown fair correlation. Using this multiscale total noise method, computational cost and turnaround time has significantly reduced compared to the flow conventional resolving approach for cabin with all the blowers. This predictive total noise method
found useful in designing and planning countermeasures during product development.
Applying the USA National Phenology Network's Growing Degree Day Maps in Making Management Decisions
Authors: Crimmins Theresa
Published: June 2023

The USA National Phenology Network generates daily growing degree day maps for the United States at fine spatial resolution (2.5–3.0 km) using a January 1 start date and two common base temperatures. Maps are available up to 6 days into the future and can be viewed and manipulated using an online visualization tool or downloaded as image or raster files. By exploring these maps through the visualization tool, it is possible to see how heat accumulation over the course of the year varies from average conditions and to anticipate when heat accumulation thresholds will be met.
Planning Large Conferences: Tips and Tricks
Authors: Langellotto Gail , Detweiler Amy , Sheng Sherry
Published: June 2023

Large conference planning requires a high degree of attention to detail as well as collaboration and coordination between the conference chair and committee chairs. Often, it is useful to learn directly from past conference chairs and to consider those elements that have worked well in the past or could be improved on. We present the lessons learned from planning the 2017 International Master Gardener Conference. This article may help others in organizations that are considering hosting large conferences.
Addressing Retention in Youth Programs: A Survey for Understanding Families' Experiences
Authors: Lewis Kendra , Ewers Timothy , Miller JoLynn , Bird Marianne , Borba John , Hill Russell , Keywood Jeannette , Shelstad Nancy , Trzesniewski Kali
Published: June 2023

Research on retention in the 4-H youth development program has consistently shown that one of the primary indicators for youths' dropping out of 4-H is being a first-year member. Extension 4-H professionals from California, Idaho, Wyoming, and New Jersey formed a team to study this issue. Our team surveyed first-year members and their parents/guardians to better understand why youths were not reenrolling in 4-H after their first year. This article introduces the survey used to assess the first-year experience and intent to reenroll. We discuss the survey development process, survey testing, lessons learned, and conclusions related to its future use.
Evaluating a Regional Administrative Model
Authors: Engle Molly , Maddy Deborah
Published: June 2023

Using a stratified random sample and real-time virtual focus group sessions, we evaluated the regional administrative model, addressing personnel supervision, program direction, financial management, and administrative leadership. We concluded that the regional administrative model remains a highly charged topic, there is no common understanding of "region," the efficiencies and effectiveness of county operations have improved, and minor differences exist among groups from areas with differing population densities only with regard to the topic of administrative leadership. Implications relate to using a mix of formal and informal communication approaches, avoiding the consequences of long-term environmental turbulence, vetting the model at all organizational levels, and pilot testing prior to statewide implementation.
The Evolving Landscape of Academic Publishing: Essential Knowledge for Extension Scholars
Authors: Braverman Marc
Published: June 2023

Extension faculty participate actively in creating and disseminating research in the natural sciences, social sciences, and emerging field of implementation science. This article discusses several current trends in academic publishing of which Extension scholars need to be aware. These include the rise in the use of metrics to evaluate journals, the growing open-access movement in academic publishing, and the proliferation of sham or predatory journals that charge publication fees without providing meaningful review or academic rigor. An awareness of these trends and the capacity to deal with them effectively will enable Extension scholars to optimize their success in disseminating their creative scholarly contributions.
Perception of Food Safety Risk from Animal Contact Questionnaire for Extension Audiences
Authors: Cater Melissa , Xu Wenqing
Published: June 2023

Animal contact in public settings for both leisure and work increases the odds of infectious diseases. This circumstance is exacerbated by inadequate understanding of the connection between exposure to animals and food safety risks. The purpose of our research was to develop a survey for assessing adults' perceptions of food safety risk from exposure to animals. Results of our study suggest that the survey has acceptable internal structure and reliability. It may prove useful to Extension professionals who are assessing the need for associated programming or seeking to track progress toward relevant outcomes.
Readiness of Congregate Nutrition Sites to Deliver Nutrition Education to Older Adults
Authors: Chao Morgan , Fraser Angela
Published: June 2023

Title III of the Older Americans Act requires congregate nutrition sites (CNSs) to provide nutrition education. In 2015, we assessed 19 CNSs in Appalachian South Carolina for nutrition education readiness. Nutrition education readiness and general education readiness were both low. Overall, the CNSs were not ready to deliver education interventions due to lack of training/education, funds, drivers, and communication technologies. Addressing these problems could improve the likelihood that education would be effective. The readiness concepts described here can be used by Extension educators to determine whether delivery sites are ready to effectively provide education programs.
Adding a "Youth Flavor" to Extension's Programs
Authors: Homan Dustin , Epley Hannah
Published: June 2023

ouths not only participate in Extension services but also can be equipped as facilitators to extend information about a critical topic to new audiences. Our interdisciplinary team of Extension professionals created a program to equip youths as peer educators, increase youths' awareness and understanding of a new topic (local foods), promote youths' positive development, and establish a model for involving teens in existing Extension programs. Other Extension professionals can use the program's model, amending the topic area as needed, to promote positive youth development outcomes while engaging youths in helping with Extension's mission.
The Farmacy Garden: A Model Program for Expanding Services to Low-Income Families
Authors: Misyak Sarah , Scott Kelli , Johnson Meredith , Helm Angie , McGonagle Maureen
Published: June 2023

Fruit and vegetable prescription, or FVRx, programs present an opportunity for expanding and promoting gardening projects, which are a mainstay of Extension programming. The Farmacy Garden, a collaboration of multiple local partners, provides a point of access for learning about and obtaining fresh fruits and vegetables and represents an integrated programming approach for increasing food security for low-income families. The garden serves as a living laboratory—a community venue for agricultural workshops and nutrition education and a space to pilot test additional programming. The Farmacy Garden is a replicable model for Extension professionals interested in leveraging local resources to expand programming and services.
Publishing in the Journal of Extension—A Place for All Authors
Authors: Arnold Mary
Published: June 2023

This commentary highlights the mission of the Journal of Extension as a scholarly space for Extension professionals to publish intellectual and creative work that enhances and advances the profession of Extension. I explore broadly the complex nature of the publishing process from the perspective of author, reviewer, and Extension Journal, Inc. (EJI) board member. I also focus on the ways in which the EJI board is working to streamline the publication process and suggest ways in which authors can contribute to the process through the careful preparation of high-quality manuscripts.
Using Continuous Response Assessment to Evaluate the Effectiveness of Extension Education Products
Authors: Cummins Glenn , Smith David , Callison Coy , Mukhtar Saqib
Published: June 2023

The case study addressed in this article illustrates the value of continuous response measurement (CRM) for testing and refining messages produced for distribution to Extension audiences. We used CRM to evaluate the responses of Extension educators and Natural Resources Conservation Service technical service providers to a video describing greenhouse gas mitigation techniques. By using this assessment method, message producers can identify elements in a video that elicit strong positive or negative responses and then refine communication activities accordingly. Our study highlights the potential of CRM for informing how Extension education products and materials may be preevaluated to ensure more widespread acceptance and use of final versions by intended audiences.
Capturing Outcomes Often Overlooked: A Pilot Evaluation of Florida Individual Contact Teaching
Authors: Warner Laura , Diaz John , Chaudhary Anil , Gusto Cody , Ali Amanda
Published: June 2023

Extension provides personalized educational services collectively known as individual contact teaching (ICT), yet these services often are not evaluated. This article presents results from pilot testing of an approach for evaluating ICT. Extension representatives and clientele provided data on ICT events, primarily office consultations and landscape site visits. Most client respondents were very satisfied with the services received; had increased their knowledge, skills, and future preparedness to address the applicable issue; and had changed a behavior following the education. These positive findings reveal the importance of evaluating such services. Extension professionals are encouraged to use a personalized evaluation approach such as the one described to ensure that the collective value of ICT is captured.
Expressive Textile Arts and Fashion-based Intervention for Youth with Emotional Distress: A Pilot Study
Authors: LI Wai-Kwan , LAM Chi-Hin , Joe AU Sau-Chuen
Published: June 2023

Recent years have seen increased interest in early intervention in and prevention of mental health difficulties during adolescence. In this pilot study, a structured expressive textile art and fashion based (ETAFB) intervention was conducted to evaluate the beneficial effects on personal well-being and social interaction of youth with emotional distress. A one-group pretest-posttest pilot study was conducted among 18 youth with emotional distress. All the participants attended four sessions of ETAFB intervention. All the participants were subjected to a preintervention test and a 4-week postintervention test using the Personal Wellbeing Index – School Children (PWI-SC), 12-item General Health Questionnaire (GHQ-12), and Social Interaction Anxiety Scale (SIAS). The study findings revealed that the ETAFB intervention was associated with significant improvements in some of the measurements. This information provides the groundwork for a further study to investigate the effect of the ETAFB intervention on the relationship between youth well-being and facilitators.
Geomorphological Changes by the Action of Coastal Processes and Anthropogenic Activties along the Coastal Zone between Ras Al-Jalaiah And Ras Az-Zour, Southern Kuwait
Authors: Al-Hurban Adeeba , Al-Shimmari Maryam
Published: June 2023

The coastline is one of the most important linear features on the earth’s surface, which displays a dynamic nature. The natural processes that interact with the coastal environment of Kuwait are tides, currents, and waves. The main shoreline of the coast of Kuwait is about 325 km long. In the north, the coast is characterized by wide intertidal mudflats, bounded by a large-scale coastal sabkha, partly covered with sand drifts. The southern shore is characterized by relatively steep sand beaches with narrow to moderately wide rocky intertidal platforms, which are partly covered by sand and algal mats. The area of interest is the coastal area between Ras al-Julaiha and Ras Az-Zour in the southern area of Kuwait. Sandy berm and wave-cut cliff bound this southern intertidal environment. The study area is a superficial, open, vulnerable bay of a maximum depth of 28 m extending along the southern shore of Kuwait. Ras Al-Jalaiah promontory bounds the area northwards and Ras Az-Zour promontory bounds it southward, with a distance measured vertically of 18.085 km.
Predictive Testing for the Management of Hidden Costs in Organizations
Authors: Deco Paulo , Santos Napoleão João Pitra dos , Neto Simbo Alcides Romualdo
Published: June 2023

The management of hidden costs in organizations requires compliance with the precepts of socio-economic theory, which imply reaching the four stages of investigation: situational diagnosis, strategic worksheet, prescription and predictive test. To this end, a proposal for a solution is conceived that suggests knowing its effectiveness through a test through reobservation of the motivations achieved among workers after implementing some measures contained in the presented solution. It is in this event that the investigation was developed, with the application of interventionist research, the frequency of malfunctions that cause hidden costs evaluated at 8,392, 259.29 Kz in the investigation carried out in December 2022 was observed and applied through the Plan of Priority Activities (PAP) tool, a short-term tool with seventy-two (72) proposed activities, however, it was tested with the frequency ́s subsequent reobservation of the same dysfunctions. Forty-seven (47) took the name of strategic activity, those activities with a value that appeared in the range of 1.5 to 2 according to the results of the spss software, that can mitigate the frequency of dysfunctions and associated hidden costs.
The Best Employee Decision Support System Using the Analytical Hierarchy Process Method at PT ASDP Indonesia Ferry (Persero)
Authors: Novianti Deny , Oktaviani Anggi , Sarkawi Dahlia , Aldyanto Aldyanto , Syahidan Ahmad Faren
Published: June 2023

The selection of the best employees aims to spur employee morale in improving employee performance and dedication in the company. The selection of best employees is selected based on company criteria. PT ASDP Indonesia Ferry (PERSERO), the best employee criteria applied by the company are Work Quantity, Work Quality, Attendance, Teamwork, and Initiative. Employee assessment is carried out every month by the assessment team (Vice President (VP) and Manager). The problem faced is determining the best employees with criteria and alternatives that are calculated manually. This system is a Decision Support System (DSS) built using the Analytical Hierarchy Process (AHP) method. Previously, the evaluation process for selecting the best employees had never been done. Some of the problems encountered were the absence of an employee performance appraisal process, no appropriate selection method, and a Decision Support System (DSS) was not available that could make it easier to assess the selection of the best employees.
Internal Factor Analysis of Non-Performing Loans Using Multiple Linear Regression Method
Authors: Irfandi Muhammad , Fitria Fitria
Published: June 2023

Loans are the largest source of income from banks compared to other sources of income. To ensure bank continuity, Bank income must exist from interest on loans, reaching almost 95% of all bank activities. For companies and banks that apply loan differences, loans are receivables which are cash that is delayed in receipt. Having problem loans can weaken a bank's financial condition. In general, two factors cause problems with loans, namely internal and external factors of the bank. Bank internal factors can be controlled by banks, compared to external factors, to prevent problem loans. Therefore, in this study, an analysis of internal factors affecting problem loans was carried out. The internal factors analyzed are the things that become the process and the essential part of the loan process, which includes loan supervision, acceptance procedures, and loan guarantees. This analysis is carried out to minimize the risk of non-performing loans caused by the inner side of the organization. The method used for analysis is using multiple linear regression analysis. Multiple linear regression analysis analyzed the relationship between the three independent variables (loan monitoring, acceptance procedures, and loan guarantees) and one dependent variable (non-performing loans). Multiple linear regression analysis provides predictions of the value of the dependent variable if the value of the independent variable increases or decreases and describes the direction of the relationship between the independent variable and the dependent variable, whether each independent variable is positively or negatively related. Based on the analysis results, the influence of loan monitoring factors, acceptance procedures, and loan guarantees on problem loans can be concluded that there is an influence between loan supervision and acceptance procedures on problem loans. At the same time, there is no effect between loan guarantees on problem loans.
Website Evaluation of The Faculty of Industrial Technology Universitas Islam Indonesia Using the System Usability Scale Method
Authors: Alfaresy Rafi Arribaath , Ratnasari Chanifah Indah
Published: June 2023

In order to maintain and improve the quality of the website of the Faculty of Industrial Technology (FTI), Universitas Islam Indonesia (UII), usability testing is performed on the website using the System Usability Scale (SUS). This study aims to evaluate usability and analyze the user experience on the FTI UII website so that the faculty can follow up on it. Respondents consisted of 41 active FTI UII students. Respondents were asked to complete scenarios on the FTI website while being watched by examiners. They then filled out the SUS questionnaire, which had 10 statements and a Likert scale for answers. Using the SUS method, the test scores were 69.32. Based on these results, the acceptability of the FTI web is in the MARGINAL HIGH range, the adjective rating is at an OK level close to GOOD, the grade scale is in class C, and the Net Promoter Score (NPS) could be passive on website users. On the basis of these results, it can be concluded that the usability of the FTI UII website is acceptable to users but has not yet attained a maximum score; therefore, a user has not yet recommended the site to other users. This confirms that the FTI website requires additional enhancements.
Non-Performing Financing pada Bank Umum Syariah dengan Faktor Determinan ROA, BOPO, CAR, dan FDR
Authors: Hadiani Fatmi , Sari Elva Oktavia
Published: June 2023

Islamic banks engage primarily in the distribution of funds through financing activities, which inherently exposes them to financing risks. One such risk is non-performing financing, which refers to the inability of the bank to collect back the financed amount. This research aims to examine the impact of four variables, namely CAR, ROA, FDR, and BOPO, on the non-performing financing of Islamic Commercial Banks during the period of 2015-2020. The study employs a quantitative approach and utilizes panel data regression analysis. The data used for analysis are obtained from the financial statements of each Islamic Commercial Bank. The findings indicate that when considered together, CAR, ROA, FDR, and BOPO have a significant positive influence on non-performing financing. However, when analyzed individually, CAR and BOPO do not have a significant impact on non-performing financing. Conversely, the ROA variable demonstrates a significant negative effect on non-performing financing, while FDR exhibits a significant positive effect.
Analisis Pengaruh IsIR, ZPR, FDR dan PBH terhadap ROA Bank Umum Syariah di Indonesia
Authors: Hardayansyah Rasyid , Purbayati Radia , Pakpahan Rosma , Hadiani Fatmi
Published: June 2023

The development of Islamic Commercial Banks in Indonesia is very rapid when viewed from the ROA contained in the financial statements. The increase in ROA should also be followed by an increase in Islamic Income, Zakat, FDR and PBH. However, there are several problems that are required to conduct this research. The focus of this research is to see whether there is an influence between the independent variables on ROA. The type of research used is descriptive quantitative analysis. The type of data used is panel data and the data source comes from the annual financial statements and the research sample is 5 Islamic banks. Data collection techniques using documentation, literature study and literature. Data processing using EViews 10. The results showed that IsIR, FDR and Profit Sharing Financing had no effect on ROA because the p value > 0.05. ZPR has a positive and significant effect on ROA because p < 0.05.
Pengaruh Likuiditas, Leverage, dan Profitabilitas terhadap Harga Saham (Studi Kasus pada Bank Panin Dubai Syariah)
Authors: Audita Renazha Putri , Mauluddi Hasbi Assidiki , Nurdin Ade Ali , Juniwati Endang Hatma
Published: June 2023

This study aims to determine how the influence of liquidity, leverage, and profitability on stock prices at Bank Panin Dubai Syariah Tbk period 2014-2020. This research uses causal associative method and is included in quantitative research. The ratios used in this research are Curret Ratio, Debt To Equity Ratio, and Return On Assets. The data used is secondary data, namely financial statement data and annual stock price reports that have been published on the official pages of each bank. This study uses the classical assumption test, multiple linear regression test, and the coefficient of determination test and uses the F test and t test to test the hypothesis with the IBM SPSS version 26 tool. The results of this show that: a). Current ratio, Debt to Equity, and Return on Assets simultaneously have no significant effect on stock prices, b). High Current Ratio (CR) will affect investor interest in investing in the company, c). Debt on Equity has a significant effect on stock prices, d) Stock Return is influenced by the Current Ratio (CR), Return On Assets (ROA), and Debt to Equity Ratio (DER) of 85.7% while the remaining 14.3% is influenced by other variables not examined in this study.
Analisis Pengaruh Faktor-Faktor Internal terhadap Profitabilitas (Studi Kasus PT. Bank Panin Dubai Syariah Tbk.)
Authors: Herdian Anisa , Barnas Benny , Mai Muhamad Umar , Tripuspitorini Fifi Afiyanti
Published: June 2023

This study aims to determine the internal factors that can affect the profitability of Bank Panin Dubai Syariah. The dependent variable used in this study is profitability which is proxied by Return on Assets. Meanwhile, the independent variables in this study are Capital Adequacy Ratio, Non Performing Financing, Financing to Deposit Ratio, and Operating Income Operating Costs. The data in this study were obtained from the publication of the quarterly financial reports of Panin Dubai Sharia Bank for the period 2011 to 2020 with a total of 40 data. The method used is multiple linear regression analysis and the results show that the Capital Adequacy Ratio has a significant positive effect on Return on Assets, Non-Performing Financing has no effect on Return on Assets, Financing to Deposit Ratio has a significant negative effect on Return on Assets, and Operational Costs have a significant negative effect on Return on Assets.
Pengaruh CAR, NPF, FDR dan BOPO terhadap Profitabilitas BPRS di Indonesia
Authors: Destiani Irma Rizky , Mayasari Ine , Tamara Destian Arshad Darulmalshah , Setiawan Setiawan
Published: June 2023

This study aims to determine the effect  of Capital Adequency Ratio (CAR), Non Performing Financing (NPF), Financing to Deposit Ratio (FDR), and Operating Efficiency Ratio (OER) on profitability as measured by Return On Assets (ROA) and Return On Equity (ROE) at Sharia Rural Banks in Indonesia for the 2014-2021 period. This research uses multiple linear regression analysis method. The data used is secondary data, namely Islamic banking statistics that have been published on the official page of the Financial Services Authority (OJK). The results of this study conclude that CAR and NPF have no effect on ROA. Furthermore, FDR has a positive effect on ROA while BOPO has a negative effect on ROA. Then CAR has a positive effect on ROE. Furthermore, NPF and FDR have no effect on ROE, while BOPO has a negative effect on ROE.
Analisis Perbandingan Profitabilitas Bank Syariah BUMN Sebelum dan Sesudah Merger Menjadi Bank Syariah Indonesia
Authors: Nurjanah Anisa , Djatnika Djoni , Setiawan Iwan , Kristianingsih Kristianingsih
Published: June 2023

This study is entitled Comparative Analysis of the Profitability of State-Owned Sharia Banks Before and After the Merger to Become a Bank Syariah Indonesia (BSI). The purpose of this study is to determine whether there is a difference in the profitability of the three BUMN Syariah Banks, namely BRI Syariah, BNI Syariah, and Bank Syariah Mandiri, 1 year before the merger, namely 2020 to 1 year after the merger, namely in 2021. The type of data used in this study is secondary data sourced from the financial statements of BRI Syariah, BNI Syariah, Bank Syariah Mandiri, and Bank Syariah Indonesia, with a quarterly timeline from 2020-2021. The method used in this study is the normality test and the different tests using the Independent Simple T-Test for normally distributed data and the Mann-Whitney U test for data not normally distributed. The results obtained from this study are that there is a difference in Gross Profit Margin between BRI Syariah, Bank Syariah Mandiri, and the average of the three state-owned Islamic banks 1 year before the merger and 1 year after the merger (when it has become a Bank Syariah Indonesia). At the same time, between BNI Syariah with Bank Syariah Indonesia, there is no difference. Likewise, with Net Profit Margin, there is a difference in Net Profit Margin between BRI Syariah, Bank Syariah Mandiri, and the average of the three state-owned Islamic banks 1 year before the merger and 1 year after the merger (when it has become a Bank Syariah Indonesia), while between BNI Syariah and There is no difference between Islamic Banks in Indonesia. Furthermore, there is no difference in Return on Assets and Return on Equity between BRI Syariah, BNI Syariah, Bank Syariah Mandiri, and the average of the three state-owned Islamic banks is 1 year before the merger with 1 year after the merger (when it has become a Bank Syariah Indonesia).
Pengaruh Profitabilitas, Struktur Modal, dan Ukuran Perusahaan terhadap Nilai Perusahaan: Komparasi Sebelum dan Selama Pandemi Covid-19
Authors: Wulandari Triastuty , Pratiwi Leni Nur , Ruhana Nafisah , Pakpahan Rosma
Published: June 2023

The entry of Covid-19 has affected many corporate sectors, especially food and beverage companies.  Good management skills are needed so that companies can face all economic conditions that affect the company's financial performance. The purpose of this study is to analyze the effect of profitability prorated by ROE, firm value prorated by SIZE, and capital structure prorated by DER on firm value before and during Covid-19. This research is a quantitative study with secondary data, the number of samples is 10 food and beverage companies with financial reports for 2016-2020, so that 60 observational data are obtained uses panel regression analysis method. The results of this study indicate that partially ROE has a significant positive effect on Tobin's Q, while SIZE and DER have no significant effect on Tobin's Q before Covid-19. Meanwhile, during the Covid-19 period, ROE had a significant positive effect and DER had a significant negative effect on Tobin's Q, while SIZE had no significant effect on Tobin's Q.