Sana'a University Journal of Applied Sciences and Technology
The Fourth Volume – The Eighth Issue of the Sana'a University Journal of Applied Sciences and Technology
المقالات
كيفية الاقتباس
Abdulqader Shaawa، Abdoulwase Al Azzani (المؤلف) (2026). A Comparative Analysis of Feature Representation Paradigms for Website Fingerprinting on the Java Anon Proxy Network. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2292- 2301. DOI: https://doi.org/10.59628/jast.v4i8.3272
Abdulqader Shaawa، Abdoulwase Al Azzani (المؤلف). “A Comparative Analysis of Feature Representation Paradigms for Website Fingerprinting on the Java Anon Proxy Network.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2292- 2301. https://doi.org/10.59628/jast.v4i8.3272. Accessed 30 أكتوبر. 2026.
Abdulqader Shaawa، Abdoulwase Al Azzani (المؤلف). 2026. “A Comparative Analysis of Feature Representation Paradigms for Website Fingerprinting on the Java Anon Proxy Network.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2292- 2301. DOI: https://doi.org/10.59628/jast.v4i8.3272
Abdulqader Shaawa، Abdoulwase Al Azzani (المؤلف) (2026) ‘A Comparative Analysis of Feature Representation Paradigms for Website Fingerprinting on the Java Anon Proxy Network’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2292- 2301. doi: 10.59628/jast.v4i8.3272
@article{jast2026_art3272,
author = {Abdulqader Shaawa، Abdoulwase Al Azzani (المؤلف)},
title = {A Comparative Analysis of Feature Representation Paradigms for Website Fingerprinting on the Java Anon Proxy Network},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2292- 2301}, doi = {10.59628/jast.v4i8.3272},
url = {https://doi.org/10.59628/jast.v4i8.3272},}
التواصل مع المؤلفين
A Comparative Analysis of Feature Representation Paradigms for Website Fingerprinting on the Java Anon Proxy Network
The Effect of Blending Graywater and Treated Wastewater with Groundwater on Calcareous Soil and Sorghum Forage Productivity: A Study in Environmental Sustainability
الملخص
This experiment was conducted in 2022 in a greenhouse at the Faculty of Agriculture, Sana'a University, during the sorghum growing season. The experimental period extended from June 1st to July 22nd, totaling 52 days, to evaluate the effect of irrigating forage sorghum in calcareous silt loam soil with different levels of greywater (GW) and partially treated wastewater (PTWW) blended with groundwater. The blending ratios refer to the volumetric proportions used for blending groundwater with non-conventional water, which included five levels (4:0, 3:1, 1:1, 1:3, and 0:4). The results showed that unblended PTWW (4:0) raised soil salinity (ECe) to 1.36 dS/m compared to 0.24 dS/m before the experiment and increased available copper concentration to 17.00 mg/L. In contrast, the 1:3 (groundwater: PTWW) blending ratio achieved the highest fresh weight of the crop, reaching 18.67 g/pot, representing a 17.3% increase over the unblended treatment. Furthermore, the 1:1 blending ratio for both PTWW and greywater yielded the highest dry weights of 5.05 and 4.68 g/pot, respectively, confirming the role of quantitative blending ratios in improving productivity and mitigating soil degradation.
الكلمات المفتاحية
كيفية الاقتباس
Ali Mohammed Abdulrahman Al-Mosawa (المؤلف) (2026). The Effect of Blending Graywater and Treated Wastewater with Groundwater on Calcareous Soil and Sorghum Forage Productivity: A Study in Environmental Sustainability. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2302-2323. DOI: https://doi.org/10.59628/jast.v4i8.3400
Ali Mohammed Abdulrahman Al-Mosawa (المؤلف). “The Effect of Blending Graywater and Treated Wastewater with Groundwater on Calcareous Soil and Sorghum Forage Productivity: A Study in Environmental Sustainability.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2302-2323. https://doi.org/10.59628/jast.v4i8.3400. Accessed 30 أكتوبر. 2026.
Ali Mohammed Abdulrahman Al-Mosawa (المؤلف). 2026. “The Effect of Blending Graywater and Treated Wastewater with Groundwater on Calcareous Soil and Sorghum Forage Productivity: A Study in Environmental Sustainability.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2302-2323. DOI: https://doi.org/10.59628/jast.v4i8.3400
Ali Mohammed Abdulrahman Al-Mosawa (المؤلف) (2026) ‘The Effect of Blending Graywater and Treated Wastewater with Groundwater on Calcareous Soil and Sorghum Forage Productivity: A Study in Environmental Sustainability’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2302-2323. doi: 10.59628/jast.v4i8.3400
@article{jast2026_art3400,
author = {Ali Mohammed Abdulrahman Al-Mosawa (المؤلف)},
title = {The Effect of Blending Graywater and Treated Wastewater with Groundwater on Calcareous Soil and Sorghum Forage Productivity: A Study in Environmental Sustainability},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2302-2323}, doi = {10.59628/jast.v4i8.3400},
url = {https://doi.org/10.59628/jast.v4i8.3400},}
التواصل مع المؤلفين
The Effect of Blending Graywater and Treated Wastewater with Groundwater on Calcareous Soil and Sorghum Forage Productivity: A Study in Environmental Sustainability
Method Development for the Detection of Lard in Lotion Cosmetics Using Gas Chromatography-Flame Ionization Detection and Chemometrics
الملخص
A Gas Chromatography-Flame Ionization Detector method was optimized for the rapid detection of lard in cosmetic lotion samples. Lard was extracted using the Soxhlet method, and lotion oils were isolated via liquid liquid extraction at 60 ◦C. The method demonstrated high linearity (R2) ranging from 0.9983 to 0.9998 across a concentration range from 1 to 100 μg/mL for four fatty acids: C20:2, C20:3n6, C20:3n3, and C20:4, which are biomarkers for lard. The precision was high, with a Relative Standard Deviation not exceeding 5.82%. The recovery rates from the spiked samples ranged between 93.00% and 103.58%. The Limit of Detection and Limit of Quantitation were 0.16–0.25 μg/mL and 0.54–0.84 μg mL, respectively. The validated method was applied to 20 commercial lotion brands collected from Yemeni markets. None of the analyzed samples showed the characteristic fatty acid markers of Lard. The developed GC-FID method, combined with principal component analysis provides a rapid, reliable, and cost-effective approach for halal authentication of cosmetic products.
الكلمات المفتاحية
كيفية الاقتباس
Raja’a A. H. Saif، Ranya A. Al-Alie، Mahfoudh M. AL-Hamadi، Anass A. Al-Nedhary، Najwa S. AL-Darwish، Fatima A. Murshed (المؤلف) (2026). Method Development for the Detection of Lard in Lotion Cosmetics Using Gas Chromatography-Flame Ionization Detection and Chemometrics. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2324-2333. DOI: https://doi.org/10.59628/jast.v4i8.3112
Raja’a A. H. Saif، Ranya A. Al-Alie، Mahfoudh M. AL-Hamadi، Anass A. Al-Nedhary، Najwa S. AL-Darwish، Fatima A. Murshed (المؤلف). “Method Development for the Detection of Lard in Lotion Cosmetics Using Gas Chromatography-Flame Ionization Detection and Chemometrics.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2324-2333. https://doi.org/10.59628/jast.v4i8.3112. Accessed 30 أكتوبر. 2026.
Raja’a A. H. Saif، Ranya A. Al-Alie، Mahfoudh M. AL-Hamadi، Anass A. Al-Nedhary، Najwa S. AL-Darwish، Fatima A. Murshed (المؤلف). 2026. “Method Development for the Detection of Lard in Lotion Cosmetics Using Gas Chromatography-Flame Ionization Detection and Chemometrics.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2324-2333. DOI: https://doi.org/10.59628/jast.v4i8.3112
Raja’a A. H. Saif، Ranya A. Al-Alie، Mahfoudh M. AL-Hamadi، Anass A. Al-Nedhary، Najwa S. AL-Darwish، Fatima A. Murshed (المؤلف) (2026) ‘Method Development for the Detection of Lard in Lotion Cosmetics Using Gas Chromatography-Flame Ionization Detection and Chemometrics’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2324-2333. doi: 10.59628/jast.v4i8.3112
@article{jast2026_art3112,
author = {Raja’a A. H. Saif، Ranya A. Al-Alie، Mahfoudh M. AL-Hamadi، Anass A. Al-Nedhary، Najwa S. AL-Darwish، Fatima A. Murshed (المؤلف)},
title = {Method Development for the Detection of Lard in Lotion Cosmetics Using Gas Chromatography-Flame Ionization Detection and Chemometrics},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2324-2333}, doi = {10.59628/jast.v4i8.3112},
url = {https://doi.org/10.59628/jast.v4i8.3112},}
التواصل مع المؤلفين
Method Development for the Detection of Lard in Lotion Cosmetics Using Gas Chromatography-Flame Ionization Detection and Chemometrics
AI-Driven Energy-Efficient Network Slicing for UAV-Assisted 6G IoT Communications Using Deep Reinforcement Learning
الملخص
Sixth-generation (6G) wireless networks are expected to support massive Internet of Things (IoT) connectivity, ultra-reliable low latency services, high-throughput multimedia traffic, and intelligent and autonomous infrastructures. Conventional terrestrial deployments may be insufficient in rural areas, disaster recovery scenarios, emergency zones, and temporary high-density IoT events, where rapid coverage extension and adaptive resource management are required. Unmanned aerial vehicles (UAVs) can operate as aerial base stations to enhance service availability; however, limited onboard energy, altitude-dependent air-to ground channels, constrained bandwidth and transmit power, and heterogeneous quality-of-service (QoS) requirements make static resource allocation inefficient. This revised paper proposes an AI driven energy-efficient network slicing framework for UAV assisted 6G IoT communication. The network is divided into enhanced Mobile Broadband (eMBB), Ultra- Reliable Low-Latency Communication (URLLC), and massive Machine-Type Communication (mMTC) slices. A DQN-based deep reinforcement learning (DRL) agent dynamically allocates the slice-level bandwidth, transmit power, and altitude-control actions after converting continuous decision variables into a finite feasible action set. The reward function jointly maximizes the throughput and energy efficiency while penalizing the latency, packet loss, and QoS violations. To address the reviewers’ concerns, the revised manuscript adds an LoS/NLoS air- to-ground channel model, a propulsion-aware UAV energy model, detailed DRL hyperparameters, a nine-action discretization table, Monte Carlo validation over 30 independent seeds, Welch significance testing, DRL variant comparison, computational complexity analysis, and three relevant references from Sana’a University Journal
of Applied Sciences and Technology. The proposed method improves the throughput by 15.7%, reduces the latency by 19.8%, improves the energy efficiency by 16.4%, and reduces the packet loss by 24.6% compared with the greedy baseline. The results confirm that slice-aware DRL improves resource utilization and service reliability in UAV-assisted 6G IoT networks.
الكلمات المفتاحية
كيفية الاقتباس
Murad Abdullah Abdo Ahmed Albahri (المؤلف) (2026). AI-Driven Energy-Efficient Network Slicing for UAV-Assisted 6G IoT Communications Using Deep Reinforcement Learning. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2334-2343. DOI: https://doi.org/10.59628/jast.v4i8.3250
Murad Abdullah Abdo Ahmed Albahri (المؤلف). “AI-Driven Energy-Efficient Network Slicing for UAV-Assisted 6G IoT Communications Using Deep Reinforcement Learning.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2334-2343. https://doi.org/10.59628/jast.v4i8.3250. Accessed 30 أكتوبر. 2026.
Murad Abdullah Abdo Ahmed Albahri (المؤلف). 2026. “AI-Driven Energy-Efficient Network Slicing for UAV-Assisted 6G IoT Communications Using Deep Reinforcement Learning.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2334-2343. DOI: https://doi.org/10.59628/jast.v4i8.3250
Murad Abdullah Abdo Ahmed Albahri (المؤلف) (2026) ‘AI-Driven Energy-Efficient Network Slicing for UAV-Assisted 6G IoT Communications Using Deep Reinforcement Learning’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2334-2343. doi: 10.59628/jast.v4i8.3250
@article{jast2026_art3250,
author = {Murad Abdullah Abdo Ahmed Albahri (المؤلف)},
title = {AI-Driven Energy-Efficient Network Slicing for UAV-Assisted 6G IoT Communications Using Deep Reinforcement Learning},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2334-2343}, doi = {10.59628/jast.v4i8.3250},
url = {https://doi.org/10.59628/jast.v4i8.3250},}
التواصل مع المؤلفين
AI-Driven Energy-Efficient Network Slicing for UAV-Assisted 6G IoT Communications Using Deep Reinforcement Learning
Household-Level Assessment of Urban Rooftop Rainwater Harvesting Potential and Its Contribution to Domestic Water Supply in Al-Wahdah District, Sana’a City, Yemen
الملخص
Sana’a City faces severe water scarcity driven by limited rainfall, rapid urban growth, and groundwater overexploitation. This study assessed the potential contribution of rooftop rainwater harvesting (RTRWH) to domestic water supply in Al-Wahdah District, Sana’a City. The methodology integrated household survey data, GIS-based rooftop digitization, roof-material information, and monthly rainfall records for 2013–2022, with an average annual rainfall of 335.4 mm. Of 374 valid surveyed buildings, 277 residential buildings were analyzed after excluding 97 non-residential or unsuitable records. Domestic demand was estimated using observed (47.5 L/c/d) household consumption and the SWSLC benchmark of 61 L/c/d. Current RTRWH use was negligible, contributing less than 1% of consumption. Under a theoretical full rooftop utilization scenario, excluding storage constraints and first-flush losses, RTRWH could provide about 13,234 m3/year, equivalent to 19.6% of observed demand and 14.7% of estimated demand. Results show that RTRWH is a valuable supplementary source, but practical use requires storage and water-quality consideration.
الكلمات المفتاحية
كيفية الاقتباس
Adel Maaodhah، Marwan Al-Badani، Sharafaddin Salleh (المؤلف) (2026). Household-Level Assessment of Urban Rooftop Rainwater Harvesting Potential and Its Contribution to Domestic Water Supply in Al-Wahdah District, Sana’a City, Yemen. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2344-2351. DOI: https://doi.org/10.59628/jast.v4i8.3287
Adel Maaodhah، Marwan Al-Badani، Sharafaddin Salleh (المؤلف). “Household-Level Assessment of Urban Rooftop Rainwater Harvesting Potential and Its Contribution to Domestic Water Supply in Al-Wahdah District, Sana’a City, Yemen.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2344-2351. https://doi.org/10.59628/jast.v4i8.3287. Accessed 30 أكتوبر. 2026.
Adel Maaodhah، Marwan Al-Badani، Sharafaddin Salleh (المؤلف). 2026. “Household-Level Assessment of Urban Rooftop Rainwater Harvesting Potential and Its Contribution to Domestic Water Supply in Al-Wahdah District, Sana’a City, Yemen.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2344-2351. DOI: https://doi.org/10.59628/jast.v4i8.3287
Adel Maaodhah، Marwan Al-Badani، Sharafaddin Salleh (المؤلف) (2026) ‘Household-Level Assessment of Urban Rooftop Rainwater Harvesting Potential and Its Contribution to Domestic Water Supply in Al-Wahdah District, Sana’a City, Yemen’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2344-2351. doi: 10.59628/jast.v4i8.3287
@article{jast2026_art3287,
author = {Adel Maaodhah، Marwan Al-Badani، Sharafaddin Salleh (المؤلف)},
title = {Household-Level Assessment of Urban Rooftop Rainwater Harvesting Potential and Its Contribution to Domestic Water Supply in Al-Wahdah District, Sana’a City, Yemen},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2344-2351}, doi = {10.59628/jast.v4i8.3287},
url = {https://doi.org/10.59628/jast.v4i8.3287},}
التواصل مع المؤلفين
Household-Level Assessment of Urban Rooftop Rainwater Harvesting Potential and Its Contribution to Domestic Water Supply in Al-Wahdah District, Sana’a City, Yemen
Hematological and Platelet Indices Alterations Associated with Khat Chewing Among University Students in Conflict-Affected Yemen: A Cross-Sectional Study
الملخص
Background: Khat chewing is prevalent among Yemeni youth; however, its impact on hematological parameters in conflict settings remains underexplored.
Objective: To assess the association between khat chewing and complete blood count (CBC) parameters, particularly platelet indices, among university students in Al-Dhale’e, Yemen.
Methods: A cross-sectional study was conducted with 226 undergraduate students. Khat use was assessed using a structured questionnaire, and CBC was analyzed using an automated hematology analyzer. Statistical analyses included independent t-tests, Mann-Whitney U tests, and multiple linear regression adjusted for age, sex, smoking, body mass index (BMI), caffeine intake, and psychological stress score.
Results: The prevalence of khat chewing was 77.9% (176/226). Compared with non-chewers, chewers had significantly higher mean platelet volume (MPV: 9.7 vs. 8.8 fL; p < 0.001; d = 0.78), higher platelet distribution width (PDW: 16.1 vs. 15.0%; p = 0.003; d = 0.48), higher white blood cell count (WBC: 7.6 vs. 6.8 × 109/L; p = 0.004; d = 0.46), and lower hemoglobin (13.7 vs. 14.3 g dL; p = 0.006; d = -0.46). Regression analysis confirmed khat as an independent predictor of elevated MPV (β = 0.85, p < 0.001), elevated WBC (β = 0.78, p = 0.008), and reduced hemoglobin levels (β = -0.52, p = 0.012). Trend analysis suggested graded associations with the frequency and duration of use.
Conclusion: Khat chewing is independently associated with elevated MPV and WBC, suggesting a possible proinflammatory state and reduced hemoglobin levels. Routine CBC monitoring should be considered for habitual khat users in resource-limited settings.
الكلمات المفتاحية
كيفية الاقتباس
Naif Taleb Ali، Radfan Saleh Abdullah، Mansour Abdulnabi H. Mehdi، Mohammed Ali Qassem، Amira Tawfiq، Anhar Sufyan، Bashar Omer، Mohammed Fissal، Sondas Amin، Wazira Saleh، Abdulaziz Abdullah، Alawi Abdul Salam، Ahmed Naji Abbas، Emad Mohammed، Fadl kamal Fadl، Fekri Saif Taher، Laila Ahmed Hamid، Nasser Jamal Ahmed، Osama Abdul Qader، Qusay Ashal Saleh، Younes Adel Saleh (المؤلف) (2026). Hematological and Platelet Indices Alterations Associated with Khat Chewing Among University Students in Conflict-Affected Yemen: A Cross-Sectional Study. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2352-2360. DOI: https://doi.org/10.59628/jast.v4i8.3106
Naif Taleb Ali، Radfan Saleh Abdullah، Mansour Abdulnabi H. Mehdi، Mohammed Ali Qassem، Amira Tawfiq، Anhar Sufyan، Bashar Omer، Mohammed Fissal، Sondas Amin، Wazira Saleh، Abdulaziz Abdullah، Alawi Abdul Salam، Ahmed Naji Abbas، Emad Mohammed، Fadl kamal Fadl، Fekri Saif Taher، Laila Ahmed Hamid، Nasser Jamal Ahmed، Osama Abdul Qader، Qusay Ashal Saleh، Younes Adel Saleh (المؤلف). “Hematological and Platelet Indices Alterations Associated with Khat Chewing Among University Students in Conflict-Affected Yemen: A Cross-Sectional Study.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2352-2360. https://doi.org/10.59628/jast.v4i8.3106. Accessed 30 أكتوبر. 2026.
Naif Taleb Ali، Radfan Saleh Abdullah، Mansour Abdulnabi H. Mehdi، Mohammed Ali Qassem، Amira Tawfiq، Anhar Sufyan، Bashar Omer، Mohammed Fissal، Sondas Amin، Wazira Saleh، Abdulaziz Abdullah، Alawi Abdul Salam، Ahmed Naji Abbas، Emad Mohammed، Fadl kamal Fadl، Fekri Saif Taher، Laila Ahmed Hamid، Nasser Jamal Ahmed، Osama Abdul Qader، Qusay Ashal Saleh، Younes Adel Saleh (المؤلف). 2026. “Hematological and Platelet Indices Alterations Associated with Khat Chewing Among University Students in Conflict-Affected Yemen: A Cross-Sectional Study.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2352-2360. DOI: https://doi.org/10.59628/jast.v4i8.3106
Naif Taleb Ali، Radfan Saleh Abdullah، Mansour Abdulnabi H. Mehdi، Mohammed Ali Qassem، Amira Tawfiq، Anhar Sufyan، Bashar Omer، Mohammed Fissal، Sondas Amin، Wazira Saleh، Abdulaziz Abdullah، Alawi Abdul Salam، Ahmed Naji Abbas، Emad Mohammed، Fadl kamal Fadl، Fekri Saif Taher، Laila Ahmed Hamid، Nasser Jamal Ahmed، Osama Abdul Qader، Qusay Ashal Saleh، Younes Adel Saleh (المؤلف) (2026) ‘Hematological and Platelet Indices Alterations Associated with Khat Chewing Among University Students in Conflict-Affected Yemen: A Cross-Sectional Study’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2352-2360. doi: 10.59628/jast.v4i8.3106
@article{jast2026_art3106,
author = {Naif Taleb Ali، Radfan Saleh Abdullah، Mansour Abdulnabi H. Mehdi، Mohammed Ali Qassem، Amira Tawfiq، Anhar Sufyan، Bashar Omer، Mohammed Fissal، Sondas Amin، Wazira Saleh، Abdulaziz Abdullah، Alawi Abdul Salam، Ahmed Naji Abbas، Emad Mohammed، Fadl kamal Fadl، Fekri Saif Taher، Laila Ahmed Hamid، Nasser Jamal Ahmed، Osama Abdul Qader، Qusay Ashal Saleh، Younes Adel Saleh (المؤلف)},
title = {Hematological and Platelet Indices Alterations Associated with Khat Chewing Among University Students in Conflict-Affected Yemen: A Cross-Sectional Study},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2352-2360}, doi = {10.59628/jast.v4i8.3106},
url = {https://doi.org/10.59628/jast.v4i8.3106},}
التواصل مع المؤلفين
Hematological and Platelet Indices Alterations Associated with Khat Chewing Among University Students in Conflict-Affected Yemen: A Cross-Sectional Study
استقرار الرطوبة والخصائص الحسية للبسكويت المعبأ بتغليفُ ممعدن أثناء التخزين: مقارنة مع تغليف غيرُ ممعدن في منتج واحد
الملخص
مع تغليف البولي بروبيلين ثنائي التوجيه غير الممعدن )BOPP( في منتج بسكويت واحد، مع تتبع استجابة ثًلثة أنواع من البسكويت تحت التغليف الممعدن. اعتمدت الدارسة تصمياما طولايا ميدانايا امتد اثني عشر شهاار في ثًلثة مواقع تخزين يمنية، مع قياسات شهرية للمحتوى الرطوبي والنشاط المائي والخصائص الحسية، وتحليل البيانات باستخدام نموذج االنحدار الخطي المختلط. أظهرت النتائج أن التغليف الممعدن ارتبط بانخفاض معنوي في المحتوى الرطوبي والنشاط المائي مقارنة بتغليف BOPP في المنتج الذي أُجريت عليه المقارنة بين نوعي التغليف، مع تحسن واضح في القرمشة كما بّين التحليل أن الزمن كان العامل األكثر ارتبااطا بتغير الخصائص الفيزيائية والحسية. وبين المنتجات المخزنة تحت التغليف الممعدن فقط، لم تُسجل فروق معنوية في المحتوى الرطوبي، بينما ظهرت فروق في النشاط المائي والخصائص الحسية. وتدعم النتائج كفاءة التغليف الممعدن ضمن حدود المقارنة المباشرة في منتج واحد، مع اختًلف استجابة المنتجات تحت نظام التغليف نفسه.
الكلمات المفتاحية
كيفية الاقتباس
خالد محمد عساج، جلال فضل، عبدالمجيد بجاش (المؤلف) (2026). استقرار الرطوبة والخصائص الحسية للبسكويت المعبأ بتغليفُ ممعدن أثناء التخزين: مقارنة مع تغليف غيرُ ممعدن في منتج واحد. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2361-2383. DOI: https://doi.org/10.59628/jast.v4i8.3050
خالد محمد عساج، جلال فضل، عبدالمجيد بجاش (المؤلف). “استقرار الرطوبة والخصائص الحسية للبسكويت المعبأ بتغليفُ ممعدن أثناء التخزين: مقارنة مع تغليف غيرُ ممعدن في منتج واحد.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2361-2383. https://doi.org/10.59628/jast.v4i8.3050. Accessed 30 أكتوبر. 2026.
خالد محمد عساج، جلال فضل، عبدالمجيد بجاش (المؤلف). 2026. “استقرار الرطوبة والخصائص الحسية للبسكويت المعبأ بتغليفُ ممعدن أثناء التخزين: مقارنة مع تغليف غيرُ ممعدن في منتج واحد.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2361-2383. DOI: https://doi.org/10.59628/jast.v4i8.3050
خالد محمد عساج، جلال فضل، عبدالمجيد بجاش (المؤلف) (2026) ‘استقرار الرطوبة والخصائص الحسية للبسكويت المعبأ بتغليفُ ممعدن أثناء التخزين: مقارنة مع تغليف غيرُ ممعدن في منتج واحد’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2361-2383. doi: 10.59628/jast.v4i8.3050
@article{jast2026_art3050,
author = {خالد محمد عساج، جلال فضل، عبدالمجيد بجاش (المؤلف)},
title = {استقرار الرطوبة والخصائص الحسية للبسكويت المعبأ بتغليفُ ممعدن أثناء التخزين: مقارنة مع تغليف غيرُ ممعدن في منتج واحد},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2361-2383}, doi = {10.59628/jast.v4i8.3050},
url = {https://doi.org/10.59628/jast.v4i8.3050},}
التواصل مع المؤلفين
استقرار الرطوبة والخصائص الحسية للبسكويت المعبأ بتغليفُ ممعدن أثناء التخزين: مقارنة مع تغليف غيرُ ممعدن في منتج واحد
Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field
↔
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
↓
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
مرتبط بهذا المنشور
الملخص
يتناول هذا التعليق قابلية إعادة إنتاج بعض الاشتقاقات المركزية في مقال R. A. M. S. Aoudh بعنوان "نظرية السرعة الأساسية الكمومية: اشتقاقات رياضية للمادة المظلمة والطاقة المظلمة من مجال السرعة"، المنشور في مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا. يقتصر التحليل على فحص ما إذا كانت بعض النتائج الرياضية والعددية تنتج عن المعادلات المطبوعة في المقال. يحدد التعليق أربع ملاحظات تقنية: اشتقاق طول الحجب، ومفكوك تايلور للكمون اللوغاريتمي، ومطابقة كثافة الطاقة مع كثافة الكتلة في حساب الطاقة المظلمة، وتفسير الحدود الدنيا للكتلة فائقة الصغر المتوقعة.
الكلمات المفتاحية
كيفية الاقتباس
Elie Almurr (المؤلف) (2026). Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2384-2386. DOI: https://doi.org/10.59628/jast.v4i8.3675
Elie Almurr (المؤلف). “Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2384-2386. https://doi.org/10.59628/jast.v4i8.3675. Accessed 30 أكتوبر. 2026.
Elie Almurr (المؤلف). 2026. “Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2384-2386. DOI: https://doi.org/10.59628/jast.v4i8.3675
Elie Almurr (المؤلف) (2026) ‘Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2384-2386. doi: 10.59628/jast.v4i8.3675
@article{jast2026_art3675,
author = {Elie Almurr (المؤلف)},
title = {Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2384-2386}, doi = {10.59628/jast.v4i8.3675},
url = {https://doi.org/10.59628/jast.v4i8.3675},}
التواصل مع المؤلفين
Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field
Reply to the Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”
↔
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
↓
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
الملخص
This document provides a detailed, point-by-point response to the Technical Note submitted on August 3, 2026, concerning my paper "Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field" (DOI: 10.59628/jast.v4i7.3446). The Technical Note raises four main criticisms regarding (1) the linearization used to derive the screening length, (2) the Taylor expansion of the logarithmic potential, (3) the units used in the dark-energy density calculation, and (4) the interpretation of ultralight dark-matter bounds. I demonstrate that three of these criticisms are based on misunderstandings of the physical context or on algebraic/unit errors in the Technical Note itself. One criticism—concerning the Taylor expansion of the logarithmic potential—is acknowledged as correct analytically, but it does not affect the final numerical results, which are obtained from a full numerical solution of the coupled background system. I provide detailed derivations, dimensional analyses, and references to the existing literature to support my responses
الكلمات المفتاحية
كيفية الاقتباس
Raheb Ali Mohammed Saleh Aoudh (المؤلف) (2026). Reply to the Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2387-2388. DOI: https://doi.org/10.59628/jast.v4i8.3678
Raheb Ali Mohammed Saleh Aoudh (المؤلف). “Reply to the Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2387-2388. https://doi.org/10.59628/jast.v4i8.3678. Accessed 30 أكتوبر. 2026.
Raheb Ali Mohammed Saleh Aoudh (المؤلف). 2026. “Reply to the Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2387-2388. DOI: https://doi.org/10.59628/jast.v4i8.3678
Raheb Ali Mohammed Saleh Aoudh (المؤلف) (2026) ‘Reply to the Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2387-2388. doi: 10.59628/jast.v4i8.3678
@article{jast2026_art3678,
author = {Raheb Ali Mohammed Saleh Aoudh (المؤلف)},
title = {Reply to the Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2387-2388}, doi = {10.59628/jast.v4i8.3678},
url = {https://doi.org/10.59628/jast.v4i8.3678},}
التواصل مع المؤلفين
Reply to the Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”
Formal Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”
↔
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
↓
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
مرتبط بهذا المنشور
الملخص
This paper presents a critical analysis of “Quantum Funda-
mental Speed Theory: Mathematical Derivations of Dark
Matter and Dark Energy from the Speed Field” (JAST,
Vol.4, No.7, 2026). The theory claims to explain dark mat-
ter and dark energy via a “fundamental speed field” and is
the third in a series of papers, the primary references [1]
and [3] being non-peer-reviewed preprints.
الكلمات المفتاحية
كيفية الاقتباس
Osama Abdullah Hassan Al-Dhuhyani (المؤلف) (2026). Formal Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2389-2394. DOI: https://doi.org/10.59628/jast.v4i8.3625
Osama Abdullah Hassan Al-Dhuhyani (المؤلف). “Formal Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2389-2394. https://doi.org/10.59628/jast.v4i8.3625. Accessed 30 أكتوبر. 2026.
Osama Abdullah Hassan Al-Dhuhyani (المؤلف). 2026. “Formal Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2389-2394. DOI: https://doi.org/10.59628/jast.v4i8.3625
Osama Abdullah Hassan Al-Dhuhyani (المؤلف) (2026) ‘Formal Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2389-2394. doi: 10.59628/jast.v4i8.3625
@article{jast2026_art3625,
author = {Osama Abdullah Hassan Al-Dhuhyani (المؤلف)},
title = {Formal Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2389-2394}, doi = {10.59628/jast.v4i8.3625},
url = {https://doi.org/10.59628/jast.v4i8.3625},}
التواصل مع المؤلفين
Formal Comment on “Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field”
Formal Reply to the Formal Comment on''Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field''
↔
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
↓
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
الملخص
This document provides a detailed, point-by-point response to the Referee Report on my paper "Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field" (DOI: 10.59628/jast.v4i7.3446). The Referee raises ten criticisms. I demonstrate that the majority of these criticisms arise from (i) evaluating an Effective Field Theory (EFT) outside its low-energy regime, (ii) misinterpreting the physical boundary conditions of galactic screening, (iii) omitting the Stueckelberg/BRST gauge-fixing conditions in the quantum sector, and (iv) misunderstanding the statistical treatment of observational data. I provide detailed derivations, dimensional analyses, and references to the existing literature to support my responses
الكلمات المفتاحية
كيفية الاقتباس
Raheb Ali Mohammed Saleh Aoudh (المؤلف) (2026). Formal Reply to the Formal Comment on''Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field''. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2395-2399. DOI: https://doi.org/10.59628/jast.v4i8.3677
Raheb Ali Mohammed Saleh Aoudh (المؤلف). “Formal Reply to the Formal Comment on''Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field''.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2395-2399. https://doi.org/10.59628/jast.v4i8.3677. Accessed 30 أكتوبر. 2026.
Raheb Ali Mohammed Saleh Aoudh (المؤلف). 2026. “Formal Reply to the Formal Comment on''Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field''.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2395-2399. DOI: https://doi.org/10.59628/jast.v4i8.3677
Raheb Ali Mohammed Saleh Aoudh (المؤلف) (2026) ‘Formal Reply to the Formal Comment on''Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field''’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2395-2399. doi: 10.59628/jast.v4i8.3677
@article{jast2026_art3677,
author = {Raheb Ali Mohammed Saleh Aoudh (المؤلف)},
title = {Formal Reply to the Formal Comment on''Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field''},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2395-2399}, doi = {10.59628/jast.v4i8.3677},
url = {https://doi.org/10.59628/jast.v4i8.3677},}
التواصل مع المؤلفين
Formal Reply to the Formal Comment on''Quantum Fundamental Speed Theory: Mathematical Derivations of Dark Matter and Dark Energy from the Speed Field''
Comment on The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach
↔
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
↓
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
مرتبط بهذا المنشور
الملخص
I read with great interest the recently published paper by Quriaa et al [1]. (2026) on the spatiotemporal analysis of rainfall variability in the Sana’a Basin. While the authors tackle a critically important topic for Yemen’s water security, a rigorous methodological review reveals foundational errors that compromise the reliability of the study’s results. This comment focuses on two primary fatal flaws: (1) a severe physical and temporal impossibility regarding the utilization of the Tropical Rainfall Measuring Mission (TRMM) dataset and (2) an inadequate statistical approach to handling missing data through mean imputation.
الكلمات المفتاحية
كيفية الاقتباس
Khaled Ismail M. Al-Shami، Abdulla A. Noman (المؤلف) (2026). Comment on The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2400-2402. DOI: https://doi.org/10.59628/jast.v4i8.3568
Khaled Ismail M. Al-Shami، Abdulla A. Noman (المؤلف). “Comment on The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2400-2402. https://doi.org/10.59628/jast.v4i8.3568. Accessed 30 أكتوبر. 2026.
Khaled Ismail M. Al-Shami، Abdulla A. Noman (المؤلف). 2026. “Comment on The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2400-2402. DOI: https://doi.org/10.59628/jast.v4i8.3568
Khaled Ismail M. Al-Shami، Abdulla A. Noman (المؤلف) (2026) ‘Comment on The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2400-2402. doi: 10.59628/jast.v4i8.3568
@article{jast2026_art3568,
author = {Khaled Ismail M. Al-Shami، Abdulla A. Noman (المؤلف)},
title = {Comment on The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2400-2402}, doi = {10.59628/jast.v4i8.3568},
url = {https://doi.org/10.59628/jast.v4i8.3568},}
التواصل مع المؤلفين
Comment on The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach
Reply To Comments On The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach
↔
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
↓
المنشورات المرتبطة
استكشف التعليقات والتصحيحات والنقد والروابط العلمية الأخرى.
الملخص
We sincerely thank the commentator for reading our article and recognizing the importance of studying rainfall variability in the Sana’a Basin, a region where water resources are critical for domestic supply, agriculture, and sustainable development. While the comment raises a reasonable question regarding the use of TRMM after 2015 and suggests alternative gap-filling approaches, the comment appears to overstate their impact on the study conclusions. This article is fundamentally a descriptive spatiotemporal assessment based primarily on rain-gauge observations rather than a predictive or trend-modeling exercise. The recommendation to re-run Mann-Kendall and Sen’s slope analyses is not applicable because these analyses were not conducted in the published paper.
الكلمات المفتاحية
كيفية الاقتباس
Hadi A. Quriaa، Bassim S. Al Khirbash، Hisham M. Nagi، Amer M. Al-Sabri (المؤلف) (2026). Reply To Comments On The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2403-2406. DOI: https://doi.org/10.59628/jast.v4i8.3668
Hadi A. Quriaa، Bassim S. Al Khirbash، Hisham M. Nagi، Amer M. Al-Sabri (المؤلف). “Reply To Comments On The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2403-2406. https://doi.org/10.59628/jast.v4i8.3668. Accessed 30 أكتوبر. 2026.
Hadi A. Quriaa، Bassim S. Al Khirbash، Hisham M. Nagi، Amer M. Al-Sabri (المؤلف). 2026. “Reply To Comments On The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2403-2406. DOI: https://doi.org/10.59628/jast.v4i8.3668
Hadi A. Quriaa، Bassim S. Al Khirbash، Hisham M. Nagi، Amer M. Al-Sabri (المؤلف) (2026) ‘Reply To Comments On The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2403-2406. doi: 10.59628/jast.v4i8.3668
@article{jast2026_art3668,
author = {Hadi A. Quriaa، Bassim S. Al Khirbash، Hisham M. Nagi، Amer M. Al-Sabri (المؤلف)},
title = {Reply To Comments On The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2403-2406}, doi = {10.59628/jast.v4i8.3668},
url = {https://doi.org/10.59628/jast.v4i8.3668},}
التواصل مع المؤلفين
Reply To Comments On The Spatiotemporal Analysis of Rainfall Variability in the Sana’a Basin, Yemen: An Integrated Remote Sensing and GIS Approach
Solar-Driven Photocatalytic Degradation of Pharmaceutical Wastewater using ZnO Nanoparticles
الملخص
The increasing discharge of pharmaceutical residues into aquatic environments poses a serious environmental threat due to their persistence and resistance to conventional wastewater treatment processes. In this study, zinc oxide nanoparticles (ZnO NPs) were synthesized via a simple precipitation method and applied as an efficient photocatalyst for the degradation and mineralization of paracetamol under UV irradiation (365 nm) and natural solar irradiation. The structural, optical, and crystalline properties were confirmed using Ultraviolet–Visible Spectrophotometer, Fourier-Transform Infrared Spectroscopy and X-ray Diffraction analyses, revealing high crystallinity and nanoscale features with an average crystallite size ranging between 32.4 and 36.4 nm, which directly facilitated the surface-driven photocatalytic pathway. The results demonstrated that the synthesized ZnO NPs achieved 100% degradation of 10 mg/L paracetamol within 60 min under optimized solar irradiation conditions (pH 11, 2.5 g/L catalyst dose, 600 rpm stirring speed at room temperature). Furthermore, Chemical Oxygen Demand (COD) analysis confirmed complete mineralization of organic content, reducing the initial COD of real wastewater from 21,780 mg/L to 0.5 mg/L, achieving a 99.99% removal efficiency while High Performance Liquid Chromatography results verified the fully degraded parent compound. A major strength of this study is the utilization of both paracetamol and real pharmaceutical industrial wastewater, which enhances the environmental relevance and practical applicability of the proposed treatment system. The study highlights ZnO NPs as a highly efficient, low-cost, and sustainable photocatalyst for solar-driven wastewater treatment applications, with strong potential for large-scale environmental remediation.
الكلمات المفتاحية
كيفية الاقتباس
Rehab Sh. AL-Selwi، Anass Alnedhary، Mahfoudh M. AL-Hamadi (المؤلف) (2026). Solar-Driven Photocatalytic Degradation of Pharmaceutical Wastewater using ZnO Nanoparticles. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2407-2415. DOI: https://doi.org/10.59628/jast.v4i8.3246
Rehab Sh. AL-Selwi، Anass Alnedhary، Mahfoudh M. AL-Hamadi (المؤلف). “Solar-Driven Photocatalytic Degradation of Pharmaceutical Wastewater using ZnO Nanoparticles.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2407-2415. https://doi.org/10.59628/jast.v4i8.3246. Accessed 30 أكتوبر. 2026.
Rehab Sh. AL-Selwi، Anass Alnedhary، Mahfoudh M. AL-Hamadi (المؤلف). 2026. “Solar-Driven Photocatalytic Degradation of Pharmaceutical Wastewater using ZnO Nanoparticles.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2407-2415. DOI: https://doi.org/10.59628/jast.v4i8.3246
Rehab Sh. AL-Selwi، Anass Alnedhary، Mahfoudh M. AL-Hamadi (المؤلف) (2026) ‘Solar-Driven Photocatalytic Degradation of Pharmaceutical Wastewater using ZnO Nanoparticles’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2407-2415. doi: 10.59628/jast.v4i8.3246
@article{jast2026_art3246,
author = {Rehab Sh. AL-Selwi، Anass Alnedhary، Mahfoudh M. AL-Hamadi (المؤلف)},
title = {Solar-Driven Photocatalytic Degradation of Pharmaceutical Wastewater using ZnO Nanoparticles},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2407-2415}, doi = {10.59628/jast.v4i8.3246},
url = {https://doi.org/10.59628/jast.v4i8.3246},}
التواصل مع المؤلفين
Solar-Driven Photocatalytic Degradation of Pharmaceutical Wastewater using ZnO Nanoparticles
مراجعة
Stability-Aware and Feasibility-Sensitive Aggregation in Federated Reinforcement Learning for Edge-IoT Systems: A Review
الملخص
Federated Reinforcement Learning (FRL) provides a useful basis for distributed policy learning in Edge-IoT systems, where clients interact with local environments without transferring raw operational data to a central server. Yet aggregation becomes difficult when clients operate under different transition dynamics, workloads, resource capacities, communication conditions, and operational constraints. In these settings, local policy updates may not differ only in magnitude or direction; they may also differ in stability, reliability, resource support, and operational feasibility. Conventional averaging is therefore limited, since it does not distinguish stable and feasible updates from unstable or constraint-violating ones. This paper examines aggregation stability and feasibility-sensitive aggregation in FRL for Edge-IoT systems. It reviews and synthesizes related literature across four connected streams: heterogeneous Federated Learning, FRL-based edge decision-making, constrained and safe Reinforcement Learning, and adaptive or reliability-aware aggregation. The reviewed studies are analyzed through six dimensions: learning paradigm, type of heterogeneity, role of policy learning, treatment of operational constraints, aggregation strategy, and whether local feasibility signals influence global aggregation weights. The analysis indicates that existing studies provide valuable foundations, but they usually treat heterogeneity, constraint handling, and aggregation adaptation as separate concerns. The paper identifies a need for aggregation mechanisms that jointly account for update stability, update reliability, resource availability, and constraint feasibility. It positions aggregation as adaptive client influence regulation rather than passive averaging in future Edge-IoT FRL systems.
الكلمات المفتاحية
كيفية الاقتباس
Majid A. Aslan، Ahmed A. S. AL-SHalabi، Ahmed S. Al-Hegami (المؤلف) (2026). Stability-Aware and Feasibility-Sensitive Aggregation in Federated Reinforcement Learning for Edge-IoT Systems: A Review. مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2416-2427. DOI: https://doi.org/10.59628/jast.v4i8.3275
Majid A. Aslan، Ahmed A. S. AL-SHalabi، Ahmed S. Al-Hegami (المؤلف). “Stability-Aware and Feasibility-Sensitive Aggregation in Federated Reinforcement Learning for Edge-IoT Systems: A Review.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, 2026, pp. 2416-2427. https://doi.org/10.59628/jast.v4i8.3275. Accessed 30 أكتوبر. 2026.
Majid A. Aslan، Ahmed A. S. AL-SHalabi، Ahmed S. Al-Hegami (المؤلف). 2026. “Stability-Aware and Feasibility-Sensitive Aggregation in Federated Reinforcement Learning for Edge-IoT Systems: A Review.” مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا : 2416-2427. DOI: https://doi.org/10.59628/jast.v4i8.3275
Majid A. Aslan، Ahmed A. S. AL-SHalabi، Ahmed S. Al-Hegami (المؤلف) (2026) ‘Stability-Aware and Feasibility-Sensitive Aggregation in Federated Reinforcement Learning for Edge-IoT Systems: A Review’, مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا, pp. 2416-2427. doi: 10.59628/jast.v4i8.3275
@article{jast2026_art3275,
author = {Majid A. Aslan، Ahmed A. S. AL-SHalabi، Ahmed S. Al-Hegami (المؤلف)},
title = {Stability-Aware and Feasibility-Sensitive Aggregation in Federated Reinforcement Learning for Edge-IoT Systems: A Review},
journal = {مجلة جامعة صنعاء للعلوم التطبيقية والتكنولوجيا}, year = {2026}, month = {أغسطس}, pages = {2416-2427}, doi = {10.59628/jast.v4i8.3275},
url = {https://doi.org/10.59628/jast.v4i8.3275},}
التواصل مع المؤلفين
Stability-Aware and Feasibility-Sensitive Aggregation in Federated Reinforcement Learning for Edge-IoT Systems: A Review