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28,188 Article Results

Depression, social support and management preferences among Ghanaian post-stroke patients: a case study

10.11591/ijphs.v14i3.25490
Lily Yarney , Joseph Nii Otinkorang , Herman Nuake Kofi Agboh
Post-stroke depression (PSD) significantly impacts the lives of cerebrovascular accident (CVA) survivors, yet tailored support systems and management preferences remain under-researched, particularly in specific healthcare settings. This study assessed the experience of depressive symptoms among CVA survivors, the support systems available to them, and their preferred management methods at the Ledzokuku-Krowor Municipal Assembly (LEKMA) Hospital in Ghana. Utilizing the descriptive case study design, 50 CVA patients were surveyed using a self-structured questionnaire and the Centre for Epidemiological Studies Depression Scale Revised (CESD R-20). Data were analyzed with Microsoft Excel and STATA version 17. Chi-square test of association was used to measure the severity of depression and specific demographic groups. Results indicated a high prevalence of depression (86%), with 10% experiencing moderate and 76% severe depression. Marital status significantly correlated with post-stroke depression (PSD) severity. Primary support sources included spouses/partners and children, providing various forms of support such as physical assistance, emotional well-being, and financial aid. Preferred management options were pharmacology and psychotherapy, driven by the desire for quick symptom relief and concerns over medication side effects and costs. These findings highlight the critical need for enhanced support systems and responsive management strategies to include depression for CVA survivors.
Volume: 14
Issue: 3
Page: 1552-1560
Publish at: 2025-09-01

DC bus control strategy and implications for voltage source converter system

10.11591/ijpeds.v16.i3.pp1505-1515
Haider Fadel , Ahmed Abdulredha Ali , Mustafa Jameel Hameed
Significantly, the use of power electronic devices in residential and industrial settings has grown significantly in the last several years. Recent advancements in power semiconductors and microelectronics may be the main reason of their growing use in power systems for filtering, conditioning, and compensating. Additionally, the proliferation of semiconductor switches appropriate for high-power applications, and the enhancement of microelectronics enable mixed signal processing and control mechanisms. Furthermore, the concentration on renewable energy sources within the electric utility industry has emphasized the incorporation of power electronic converters into power systems. The operation and control of the regulated DC-voltage power port are examined in this work, a key part in different applications, such as STATCOM, dual mode HVDC converter systems, and aerodynamic wind energy converters with adaptive-speed optimization, emphasizing its significance in upholding a stable voltage level throughout the DC bus. The research also highlights the importance of power electronic converters within contemporary power systems, emphasizing their crucial role in facilitating effective and reliable power distribution. The obtained simulation results confirmed the efficacy of feed forward compensation in stabilizing the voltage responses of the DC bus.
Volume: 16
Issue: 3
Page: 1505-1515
Publish at: 2025-09-01

A model predictive control strategy for enhance performance of totem-pole PFC rectifier

10.11591/ijpeds.v16.i3.pp1687-1700
Le Chau Duy , Nguyen Dinh Tuyen
This paper proposed a simple but effective finite control set-based model predictive control (FCS-MPC) method to control a totem-pole bridgeless boost PFC rectifier (TBBR). The control algorithm selects from the possible switching states an appropriate one that fulfills a predefined cost function. This method also successfully eliminates the zero-crossing current distortion so that the grid current can synchronize well with the grid voltage. The theoretical analysis was presented and verified by simulation. Finally, a 3.3 kW/400 Vdc prototype was fabricated and investigated through various working conditions to realize the effectiveness of the proposed control strategy. Both simulation and experimental results show that the proposed control method can ensure accurate control of DC link output voltage and sinusoidal input current with unity power factor.
Volume: 16
Issue: 3
Page: 1687-1700
Publish at: 2025-09-01

Comparative reliability and performance analysis of PV inverters with bifacial and monofacial panels

10.11591/ijpeds.v16.i3.pp1970-1982
Muneeshwar Ramavath , Rama Krishna Puvvula Venkata
In the realm of solar energy systems, the reliability and performance of photovoltaic (PV) inverters play a critical role in ensuring efficient energy conversion and long-term operation. This study delves into a comprehensive reliability-oriented performance assessment of PV inverters, with a particular focus on the comparative analysis between bifacial and monofacial panels. Reliability evaluation is carried out by considering a yearly mission profile with a one-minute sample at Hyderabad, India. A test case of a 3-kW PV system for grid-connected applications is considered. By integrating reliability metrics with performance indicators, we aim to provide a holistic evaluation of PV inverters operating under varying conditions inherent to both panel types. The research methodology involves detailed simulations and field data analysis to capture the nuances of inverter performance influenced by the unique characteristics of bifacial panels, such as their ability to capture light from both sides, compared to the traditional monofacial panels. In this paper, performance parameters such as junction temperature, MCS, and B10 lifetime (system level (SL) and component level (CL)) are evaluated. Key findings highlight the impact of these differences on inverter reliability. The Bi-PV panel exhibits a decreasing trend. In India, CL reliability (B10) is decreased from 34 years to 1.5 years, and SL reliability (B10) is decreased from 24 years to 1 year. In comparison with monofacial panels, the thermal stress on the PV inverter due to the bifacial panel is increased, and reliability is decreased.
Volume: 16
Issue: 3
Page: 1970-1982
Publish at: 2025-09-01

Investigation of optimal tilt, orientation, and tracking of a solar PV system in Iraq

10.11591/ijpeds.v16.i3.pp1914-1925
Ahmed Zurfi , Ali Abdul Razzaq Altahir , Ali Ibrahim
This paper examines the effect of tilt angle and tracking modes on energy performance of a PV system under Iraqi weather conditions. A 5-kWdc rooftop residential PV system is modeled and simulated using system advisor model (SAM) to investigate its optimal configuration of tilt angle and tracking axes for maximum energy extraction. The system is simulated with meteorological datasets for all 18 Iraqi provinces. The effect of soiling losses due to dust accumulation on incident irradiance and energy generation is considered as most Iraqi territories suffer from frequent dust storms yearly. The system annual AC energy and optimal tilt angles are evaluated and compared in five different scenarios including fixed-axis with tilt at latitude, fixed-axis with tilt at annual optimal angle, fixed-axis with tilt at monthly annual angle, one-axis tracking and dual-axis tracking. The results showed that considerable amount of energy is left unharnessed in fixed-axis scenarios when tilt angles are adjusted at latitude and optimal annual values. Using optimal monthly tilt with fixed-axis improved energy extraction by 5-6% for all locations. Energy performance is further improved with one axis tracking. Dual-axis tracking achieved highest energy yield compared to other scenarios. Overall, mid-south provinces provided highest energy opportunities among others.
Volume: 16
Issue: 3
Page: 1914-1925
Publish at: 2025-09-01

An analytical technique for failure analysis and reliability assessment of grid daily outage performance in distributed power system

10.11591/ijpeds.v16.i3.pp1852-1864
Jacob Kehinde Ogunjuyigbe , Evans Chinemezu Ashigwuike , Kafayat Adeyemi , Ngang Bassey Ngang , Timothy Oluwaseun Araoye , Isaac Ojochogwu Onuh , Benson Stephen Adole , Solomon Bala Okoh , Iboi Endurance
This paper modeled and analyzed the reliability performance of the 132/33 kV substation in Abuja, Nigeria through the historical data collected from the APO substation using MATLAB 2021b. The probability distribution model was applied to determine the daily feeder’s outage using Reliability, availability, mean time to repair (MTR), Failure rate, distribution indices, and mean time between failures (MTBF). Due to the application of smart energy meters, the use of prepaid energy meters has helped to regulate energy demand, reduce network overloading especially during peak hours, and minimize the cost of energy consumed. There are more forced failures in the distribution system due to the switchgear and Transformer failures. There are more forced failures in the distribution system since 2013, which caused a reduction in the number of interruptions even with an increase in several customers linked to the transmission network. The result shows that the system was most available in the year 2015 with an average service availability index (ASAI) value of 98.9971%. The system was least available in year 2011 with an ASAI value of 98.6558%. The paper recommended that there should be interconnections between different feeders through proper configuration of switches or reclosers, to reduce failure occurrence in the network.
Volume: 16
Issue: 3
Page: 1852-1864
Publish at: 2025-09-01

Enhancement of power quality of grid integrated photo voltaic system using active power filter

10.11591/ijpeds.v16.i3.pp2017-2029
Praveen Kamat , Anant Naik
The world's population's energy needs are growing daily, while at the same time, fossil fuels are being reduced at an alarming rate. Fossil fuel burning also increases pollution and causes global warming. Renewable energies are now being extensively used to generate electricity, so the dependence on fossil fuels is considerably reduced. Among the primary sources of alternative energy used to create power is photovoltaic (PV) technology. A grid connected PV system is the most widely recommended. When PV is linked to the grid, two main issues are the maximum power that can be taken out of it and the quality of the electricity placed into it. With the help of neural networks, the maximum power point tracking (MPPT) technology has been developed to increase the PV array's power harvesting. An active power filter (APF) had been created and analyzed using Instantaneous Reactive Power Theory, including the Chebyshev II low-pass filter. As required by IEEE 519, the total harmonic distortion (THD) with injected source current has been confirmed well within 5%. These results demonstrate that this method is a simple and efficient way to inject harmonic-free currents into the grid.
Volume: 16
Issue: 3
Page: 2017-2029
Publish at: 2025-09-01

Low voltage fault ride-through operation of a photo-voltaic system connected utility grid by using dynamic voltage support scheme

10.11591/ijpeds.v16.i3.pp1608-1619
Satyanarayana Burada , Kottala Padma
This research suggests a control technique that makes use of a microgrid's energy storage and to enable low voltage ride through (LVRT) process with a flexible dynamic voltage support (DVS) system. First, the requirements for the microgrid's maximum DVS are stated, together with an explanation of how these requirements depend on the characteristics of the analogous network that the microgrid sees. In order to create a flexible DVS regardless of the changing system circumstances, reference signals for currents that are derived from maximum voltage tracking technique are suggested in this research. These signals take into account the challenges involved with real time parameter assessment in the context of transient voltage disruptions. Second, a control scheme is suggested to allow a microgrid's energy storage-based LVRT operation. Thirdly, a novel approach to energy storage sizing for LVRT operation is offered, taking into account the corresponding network characteristics, grid code requirements, and the rated current value of the power electronic converter. Real-time MATLAB simulations for low-voltage symmetrical faults are used to validate the suggested control technique.
Volume: 16
Issue: 3
Page: 1608-1619
Publish at: 2025-09-01

Optimization of ANN-based DC voltage control using hybrid rain optimization algorithm for a transformerless high-gain boost converter

10.11591/ijpeds.v16.i3.pp1711-1720
Mohcine Byar , Abdelouahed Abounada
This paper introduces an adaptive voltage regulation technique for a transformerless high-gain boost converter (HGBC) integrated within standalone photovoltaic systems. A neural network controller is trained and fine-tuned using the rain optimization algorithm (ROA) to achieve improved dynamic behavior under variable solar conditions. The proposed ROA-ANN framework continuously updates the duty cycle to ensure output voltage stability in real time. Validation was carried out using MATLAB–OrCAD co-simulation under multiple scenarios. Comparative results highlight superior performance of the ROA-ANN controller in terms of convergence speed, overshoot minimization, and steady-state response, outperforming conventional PID and ANN-based methods.
Volume: 16
Issue: 3
Page: 1711-1720
Publish at: 2025-09-01

Meat product consumption among children aged 1–3 years in Baquba City, Iraq

10.11591/ijphs.v14i3.26108
Aqeel Abbas Noaman , Sarmad Qassim Mohammad
The caregiver should prioritize meats in the infant's diet during the last 6 months due to their sources of nutrients and proteins. This study aimed to identify the prevalence of meat product consumption among children aged 1–3 and their preferences based on age and sex. We conducted an analytical cross-sectional study on 810 children aged 1–3 years using a questionnaire. We used the chi-square test, and a p-value < 0.05 was considered significant. The study found that 60.3%, 86.2%, 85.4%, and 59.3% consumed red meat weekly (p ≤ 0.001), fish monthly (p ≤ 0.001), chicken weekly (p ≤ 0.001), and eggs daily (p ≤ 0.001), respectively. The second-year children prefer to consume red meat (44.8%), fish (46.3%), chicken (45.2%), and eggs (44.2%) more frequently than in other years. Males preferred red meat, fish, chicken, and eggs more than females (54.1% vs. 45.9%; 52.7% vs. 47.3%; 54.5% vs. 45.5%, and 54.4% vs. 45.6%), respectively. In conclusion, the consumption of chicken and eggs is more prevalent. In the second year of life, children, particularly boys, consume more meat products due to their own or their parents' preferences. We suggest expanding the scope of this study to include dairy products.
Volume: 14
Issue: 3
Page: 1569-1575
Publish at: 2025-09-01

Physical activity, sleeping pattern, and road accidents among Saudi population in Najran Province during the month of Ramadan

10.11591/ijphs.v14i3.25685
Hatem Mohamed , Ramzi Naim Nasser , Anass M. Abbas , Manar G. Shalabi , Lienda Basheir Eltayeb , Walid Gaafar Hamid Babikr
This study examined the impact of Ramadan fasting on physical activity and sleep patterns among Saudis in Najran, Saudi Arabia. Seventy-three male and female volunteers completed a self-reported questionnaire over five days at Najran University Hospital. Data collected included demographics, physical activity levels, sedentary behaviors, sleep duration, social activities, and mood changes. Results showed that only 29 participants (39.9%) considered themselves physically active, while 44 (60.3%) were sedentary. The mean age of the active group was 41.60±8.21 years. Among females, only 7 (31.8%) were physically active, while 15 (68.2%) were inactive. Factors such as night work, mood changes, and indoor social activities significantly influenced physical activity levels (p<0.005). Regarding sleep, the physically active group had a mean daily sleep duration of 7.43±1.52 hours, while the sedentary group slept an average of 10.20±2.11 hours, showing a statistically significant difference. These findings suggest that Ramadan fasting influences both physical activity and sleep patterns, potentially affecting overall health and well-being.
Volume: 14
Issue: 3
Page: 1515-1523
Publish at: 2025-09-01

Physical activity interventions for adolescent suicide ideation and behavior: a rapid review

10.11591/ijphs.v14i3.25128
Richard Peter Bailey , Nadia Samsudin , Francis Ries , Janet Ann Fernandez
Physical inactivity, sedentary behavior, and mental health issues have become significant public health challenges. This review aimed to investigate the relationship between physical activity, sedentary behavior, and the risk of suicidal ideation and behaviors during adolescence. A systematic review was conducted following PRISMA guidelines. Studies were sourced from SPORTDiscus, Psychology & Behavioral Sciences Collection, and Google Scholar. The review included English-language peer reviewed articles published between January 2018 and March 2023, focusing on physical activity, sport, and mental health in adolescents aged 10 to 19. Adolescents with low levels of physical activity or high levels of sedentary behavior were at greater risk of suicidal thoughts compared to their more physically active counterparts. Although moderate-to-vigorous physical activity was not directly associated with self-harm or mental health disorders, the overall mental health benefits of physical activity, especially in the context of socially engaging sports, were evident. Some aspects of these associations warrant further investigation. Physical activity and sport offer cost-effective, widely accepted interventions that have significant potential to reduce the risk of suicidal ideation and behaviors among adolescents. Given the devastating impact of suicide on young people, incorporating physical activity into mental health promotion and intervention strategies is crucial.
Volume: 14
Issue: 3
Page: 1221-1231
Publish at: 2025-09-01

Cross-cultural adaptation, validity, and reliability of the Indonesian version of the Hill-Bone high blood pressure therapy compliance scale

10.11591/ijphs.v14i3.23685
Eldawati Eldawati , Faridah Mohd Said , Nur Syazana Umar
Hypertension is a long-term condition that enables individuals to take an active role in managing their health care— inadequate adherence to medication regimens is a major factor contributing to treatment failure. We translated and updated the Hill-Bone high blood pressure therapy compliance scale for use in Indonesia, where systemic hypertension is becoming increasingly prevalent.  This study aims to evaluate the validity and reliability of the Indonesian version of the Hill-Bone high blood pressure therapy compliance scale. The descriptive cross-sectional research was conducted in East Java, Indonesia, during June and July 2021. For the purpose of selecting 144 persons who had hypertension, a convenience sample was utilized. The Hill-Bone high blood pressure therapy compliance instrument was translated from English into Indonesian using a forward-backward translation method, followed by evaluation by an expert panel and pilot testing. To assess its reliability, the Cronbach's alpha coefficient and item-total correlation were utilized. A Kaiser-Meyer-Olkin (KMO) value of 0.945 confirmed the adequacy of the sample for the study. Additionally, the Bartlett’s test yielded a significant result (X² = 132.41; p < 0.001), supporting the appropriateness of conducting a factor analysis. Using factor analysis, the Hill-Bone high blood pressure therapy compliance scale revealed a single factor with an eigenvalue >1 that explained 42.13% of the total variation. The Cronbach alpha coefficient of the Hill-Bone high blood pressure therapy compliance scale was 0.901. The Hill-Bone high blood pressure therapy compliance instrument has been successfully translated and tailored for the Indonesian population, with consideration of their cultural context. In order to provide an accurate prediction regarding the impact that this intervention would have on patients' adherence, the Hill-Bone high blood pressure therapy compliance scale could be of assistance.
Volume: 14
Issue: 3
Page: 1595-1600
Publish at: 2025-09-01

Evaluation of the project to develop an information system for promoting community health

10.11591/ijphs.v14i3.25879
Patchana Hengboriboonpong Jaidee , Sirichai Junphum , Supattra Assawamaitree , Nisa Rattanadilok Na Phuket , Nattakarn Sittisaman , Wanasara Chaoniyom
This study aimed to evaluate the Thailand Community Network Appraisal Program (TCNAP) during 2020-2022, utilizing a developmental evaluation framework based on the CIPP model. Data collection employed a mixed methods approach. Methods included in-depth interviews and focus group discussions with 204 representatives from the Healthy Community Strengthening Office under the Thai Health Promotion Foundation (Thai Health), the Research and Development Community Health System Center, the Center of Community Database Management, and the Regional Center of Academic Support for Network Management. Quantitative data were collected through online surveys assessing the effectiveness of the TCNAP project from 376 delegates of the co-creation livable community network. Descriptive statistics were used for quantitative data analysis, while thematic and content analysis were applied for qualitative data. Results indicated that the project network expressed high satisfaction with the database usage, with a mean score of 3.99±0.76. It was observed that 8 out of 10 indicators successfully achieved their objectives. Additionally, the pragmatic utility of information derived from TCNAP was evident in formulating local development plans and garnering external support for enhancing community health and quality of life. This commitment to evidence-based practice is encapsulated by the phrase “Data equals stability.” However, sustaining the implementation of the TCNAP project posed significant challenges. Proposed developmental strategies include organizing knowledge exchange activities, improving data collection tools and formats, and providing budgetary support tailored to the area context. Additionally, enhancing the operational system of TCNAP is crucial to ensure stability, convenience, efficiency, and adaptability for both current and future use.
Volume: 14
Issue: 3
Page: 1468-1478
Publish at: 2025-09-01

Correlation between jet lag syndrome and air travel fatigue

10.11591/ijphs.v14i3.25992
Khaerul Amri , Imelda Avia , Azis Fahruji
Long-distance air travel causes travelers to experience travel fatigue. Jet lag syndrome is one of the factors that exacerbate fatigue from air travel. Fatigue can seriously impact travelers with a history of illness. Health emergencies resulting from travel fatigue can even lead to death. A cross-sectional study was conducted to identify the relationship between jet lag syndrome and air travel fatigue. The 117 people who had traveled in the past year had jet lag syndrome and did not meet the exclusion criteria were selected. The questionnaires used the circadian type inventory and the fatigue scale, and validity and reliability were tested. Multiple logistic regression was performed to determine the variables influencing air travel fatigue. The relationship between jet lag syndrome and air travel fatigue was analyzed using Chi-square analysis. Results of the study identified that 53.8% of respondents experienced severe fatigue, and 54.7% experienced severe jet lag syndrome. Jet lag syndrome correlated with air travel fatigue significantly (p = 0.001). Respondents with severe jet lag syndrome experienced severe fatigue. The findings from this study emphasize that addressing jet lag syndrome is necessary to reduce air travel fatigue for overall health.
Volume: 14
Issue: 3
Page: 1532-1539
Publish at: 2025-09-01
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