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Acta Metallurgica Sinica(English Letters) 2013年第1期26卷 92-96页

作者： amir sultan Riffat Asim PASHA Mifrah ALI Muhammad Zubair KHAN Muhammad Afzal KHAN Naeem Ullah DAR Masood SHAH Department of Mechanical Engineering University of Engineering and Technology International Islamic University

Single-edged notched tension （SENT） specimen is used to study the fatigue crack growth rate （FCGR） behavior of AISI 50100 steel using MTS 810. Calibration tests are run to get plots of crack mouth opening displacement （CMOD） vs. load and CMOD vs. crack length-to-width ratio with the known crack lengths. Numerical simulation is also done to try to establish a relation between crack length and CMOD. FCGR of welded and un-welded specimens are plotted against stress intensity factor range to show the effect of welding on fatigue crack growth rate of AISI 50100 steel. The experimentally obtained CMOD values are compared with values obtained by numerical simulation using ABAQUS/StandardTM software package. Results show that numerical values are in good agreement with experimental data for small crack lengths and lower values of applied load,

关键词： Tool steel Weld Single-edged notched tension (SENT) CMOD Fatigue crackgrowth rate (FCGR)

A Fused Machine Learning Approach for Intrusion Detection System

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Computers, Materials & Continua 2023年第2期74卷 2607-2623页

作者： Muhammad Sajid Farooq Sagheer Abbas Atta-ur-Rahman Kiran sultan Muhammad Adnan Khan amir Mosavi School of Computer Science National College of Business Administration and EconomicsLahore54000Pakistan Department of Computer Science College of Computer Science and Information TechnologyImam Abdulrahman Bin Faisal UniversityP.O.Box 1982Dammam 31441Saudi Arabia Department of CIT The Applied CollegeKing Abdulaziz UniversityJeddah21589Saudi Arabia Department of Software Gachon UniversitySeongnam13120Korea John von Neumann Faculty of Informatics Obuda UniversityBudapest1034Hungary Institute of Information Engineering Automation and MathematicsSlovak University of Technology in BratislavaBratislava81107Slovakia Faculty of Civil Engineering TU-DresdenDresden01062Germany

The rapid growth in data generation and increased use of computer network devices has amplified the infrastructures of *** interconnectivity of networks has brought various complexities in maintaining network availability,consistency,and *** learning based intrusion detection systems have become essential to monitor network traffic for malicious and illicit *** intrusion detection system controls the flow of network traffic with the help of computer *** deep learning algorithms in intrusion detection systems have played a prominent role in identifying and analyzing intrusions in network *** this purpose,when the network traffic encounters known or unknown intrusions in the network,a machine-learning framework is needed to identify and/or verify network *** Intrusion detection scheme empowered with a fused machine learning technique(IDS-FMLT)is proposed to detect intrusion in a heterogeneous network that consists of different source networks and to protect the network from malicious *** proposed IDS-FMLT system model obtained 95.18%validation accuracy and a 4.82%miss rate in intrusion detection.

关键词： Fused machine learning heterogeneous network intrusion detection

Disaster Collaborative Exercises for Healthcare Teamwork in a Saudi Context

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International Journal of Disaster Risk Science 2023年第2期14卷 183-193页

作者： Mohammed Ali Salem sultan amir Khorram-Manesh Jarle Lφwe Sφrensen Johan Berlin Eric Carlstrōm Model of Care Healthcare TransformationRegional Health DirectorateNajran66255Saudi Arabia Institute of Health and Care Sciences Sahlgrenska AcademyGothenburg University40530GothenburgSweden Institute of Clinical Sciences Sahlgrenska AcademyGothenburg University40530GothenburgSweden Gothenburg Emergency Medicine Research Group(GEMREG) Sahlgrenska Academy41345GothenburgSweden USN School of Business University of South-Eastern Norway3199BorreNorway Department of Social and Behavioural Studies University West46186TrolhättanSweden

This study aimed to evaluate the development of healthcare teamwork during and after the collaboration tabletop exercises,through observation and interview *** and maturity theoretical models were employed to explain the collaborative challenges in teams that may suffer from unequally distributed power,hierarchies,and *** three-level collaboration tabletop exercises and the Command and control,Safety,Communication,Assessment,Treatment,Triage,Transport(CSCATTT)instrument,100 healthcare workers were observed during each step in the implementation of the CSCATTT instrument using two simulated *** results show a lack of integration and team maturity among participants in the first scenario,leading to the delayed start of the activity,task distribution,and decision *** shortcomings were improved in the second ***-depth interviews with 20 participants in the second phase of the study revealed improved knowledge and practical skills,self-confidence,and ability in team building within trans-professional groups in the second scenario,which in concordance with the integration theory,was due to the attempts made in the first ***,there was an improvement in the team’s maturity,which in concordance with the maturity theory,was due to the knowledge and practical skills during scenario *** results indicate the importance of continuous tabletop training,and the use of CSCATTT as a collaborative instrument,to promote the development of collaboration and to test the concept of preparedness.

关键词： Collaboration exercises Disaster education Emergency management Healthcare personnel training Saudi Arabia Teamwork

Automated File Labeling for Heterogeneous Files Organization Using Machine Learning

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Computers, Materials & Continua 2023年第2期74卷 3263-3278页

作者： Sagheer Abbas Syed Ali Raza MAKhan Muhammad Adnan Khan Atta-ur-Rahman Kiran sultan amir Mosavi School of Computer Science National College of Business Administration&EconomicsLahore54000Pakistan Department of Computer Science GC University LahorePakistan Riphah School of Computing&Innovation Faculty of ComputingRiphah International UniversityLahore CampusLahore54000Pakistan Department of Software Pattern Recognition and Machine Learning LabGachon UniversitySeongnam13120Korea Department of Computer Science College of Computer Science and Information Technology(CCSIT)Imam Abdulrahman Bin Faisal University(IAU)P.O.Box 1982Dammam31441Saudi Arabia Department of CIT The Applied CollegeKing Abdulaziz UniversityJeddah31261Saudi Arabia John von Neumann Faculty of Informatics Obuda UniversityBudapest1034Hungary Institute of Information Engineering Automation and MathematicsSlovak University of Technology in BratislavaBratislava81107Slovakia Faculty of Civil Engineering TU-DresdenDresden01062Germany

File labeling techniques have a long history in analyzing the anthological trends in computational *** situation becomes worse in the case of files downloaded into systems from the ***,most users either have to change file names manually or leave a meaningless name of the files,which increases the time to search required files and results in redundancy and duplications of user ***,no significant work is done on automated file labeling during the organization of heterogeneous user files.A few attempts have been made in topic ***,one major drawback of current topic modeling approaches is better *** rely on specific language types and domain similarity of the *** this research,machine learning approaches have been employed to analyze and extract the information from heterogeneous corpus.A different file labeling technique has also been used to get the meaningful and`cohesive topic of the *** results show that the proposed methodology can generate relevant and context-sensitive names for heterogeneous data files and provide additional insight into automated file labeling in operating systems.

关键词： Automated file labeling file organization machine learning topic modeling

Impact of Virtual Disaster Collaboration Exercises on Disaster Leadership at Hospitals in Saudi Arabia

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International Journal of Disaster Risk Science 2021年第6期12卷 879-889页

作者： Mohammed Ali Salem sultan amir Khorram-Manesh Eric Carlström Johan Berlin Jarle Løwe Sørensen Healthcare Transformation Model of CareRegional Health DirectorateNajran 66255Saudi Arabia Institute of Health and Care Sciences Sahlgrenska AcademyGothenburg University40530 GothenburgSweden Institute of Clinical Sciences Sahlgrenska AcademyGothenburg University40530 GothenburgSweden Department of Research and Development Swedish Armed Forces Centre for Defence Medicine42676 Gothenburg Sweden Gothenburg Emergency Medicine Research Group(GEMREG) Sahlgrenska Academy41345 GothenburgSweden USN School of Business Campus VestfoldUniversity of South-Eastern Norway3603 KongsbergNorway Department of Social and Behavioural StudiesUniversity West46186 TrolhattanSweden

This study measured the impact of virtual three-level collaboration (3LC) exercises on participants’ perceived levels of collaboration, learning, and utility (CLU) at hospitals in the southern region of Saudi Arabia. Our 3LC exercise is a tabletop training tool used to facilitate disaster education and document CLU. This model enables the practitioner to acquire new knowledge and promotes active learning. An English version of the CLU scale, the validated Swedish survey tool, was applied to 100 healthcare managers or leaders in various positions at both the operational and tactical levels after conducting the 3LC exercises. The response rate was 100%, although not all questions were answered in some cases. The results show that most participants strongly agreed that the exercises focused on collaboration (r^(2) = 0.767) and that they had acquired new knowledge during the exercises. There was a statistically significant association between participation in the collaboration exercises and perceived learning (r^(2) = 0.793), as well as between perceived learning and utility (r^(2) = 0.811). The collaboration exercises enhance the perceived effects of CLU. They also improve the ability of participants to adapt situational strategies to achieve a safer society. Although exercises were conducted virtually, they were well received by the participants and achieved a value M = 4.4 CLU score, which opens up new dimensions in collaboration simulation exercises.

关键词： Collaboration exercises Disaster education Emergency management Healthcare personnel training Saudi Arabia

Fish as Bioindicator: Ecological Risk Assessment of Insecticide to Aquatic Organism Particularly <i>Ctenopharyngodon idella</i>

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Journal of Geoscience and Environment Protection 2021年第2期9卷 42-54页

作者： Naqash Khan Aamir sultan amir Ali Sahibzada Muhammad Haseeb Jan Waqar Khan Ihtisham Ur Rahman Hazrat Usman Suleman Zahid Khan Ahsan Khan Department of Zoology University of Swabi Anbar Swabi Khyber Pakhtunkhwa Pakistan Department of Zoology University of Peshawar Khyber Pakhtunkhwa Pakistan

Repeatedly deposition of anthropogenic chemicals such as chlorpyrifos led to the risk of its associated unwanted toxicity to the non-targeted organisms. The present project was designed to assess the toxicity of chlorpyrifos, an organophosphorus insecticide, at different dose level and duration of exposure to elucidate its cellular and nuclear anomalies in erythrocytes and histopathological effect on brain and liver tissues of the fresh water fish (Ctenopharyngodon idella). The chlorpyrifos was used at 0.01 and 0.015 μL/L for a duration of 3, 6, 9, 12, and 15 days respectively. Alteration in functional markers such as cellular anomalies associated with exposed dosage was reported as swollen cells, swollen or enlarged cells, and hemolyzed cells followed by nuclear abnormalities stated as micronucleus, deformed nucleus and nuclear shift. The result indicated alterations observed in brain and liver tissues were categorized as necrosis, vacuolization, degeneration of neurons and hepatic necrosis, hepatolysis and hepatic vacuolization that were further scored on the basis of severity from 0 (normal) to 3 (severe). These effects significantly increased with the increase in dose level of chlorpyrifos and duration of exposure (p < 0.05). The present findings contributed that extended exposure of such chemicals to the aquatic ecosystems led to behavioral and histopathological alterations that may result in loss of normal functioning of the organs.

关键词： Histopathological Toxicological Cellular Abnormalities Nuclear Abnormalities Organophosphorus Chlorpyrifos

Forestvoltaics,Floatovoltaics and Building Applied Photovoltaics(BAPV)Potential for a University Campus

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Energy Engineering 2024年第9期121卷 2331-2361页

作者： Rittick Maity Muhammad Khairul Imran bin Ahmad Shuhaimi Kumarasamy Sudhakar amir Abdul Razak Faculty of Electrical and Electronics Engineering Technology Universiti Malaysia Pahang Al-Sultan AbdullahPekan26600Malaysia Centre for Research in Advanced Fluid and Processes UniversitiMalaysia Pahang Al-Sultan AbdullahGambang26300Malaysia Faculty of Mechanical and Automotive Engineering Technology Universiti Malaysia Pahang Al-Sultan AbdullahPekan26600Malaysia Centre for Automotive Engineering Universiti Malaysia Pahang Al-Sultan AbdullahPekan26600Malaysia Energy Centre Maulana Azad National Institute of TechnologyBhopal462003India

The United Nations’Sustainable Development Goals(SDGs)highlight the importance of affordable and clean energy *** energy is a perfect example,being both renewable and *** popularity shows no signs of slowing down,with solar photovoltaic(PV)panels being the primary technology for converting sunlight into *** are continuously being made to ensure cost-effectiveness,high-performing cells,extended lifespans,and minimal maintenance *** study focuses on identifying suitable locations for implementing solar PVsystems at theUniversityMalaysia PahangAl sultanAbdullah(UMPSA),Pekan campus including buildings,water bodies,and forest areas.A combined technical and economic analysis is conducted using Helioscope for simulations and the Photovoltaic Geographic Information System(PVGIS)for economic *** simulation examine case studies for PV installations in forested areas,lakes,and *** approach provides comprehensive estimations of solar photovoltaic potential,annual cost savings,electricity costs,and greenhouse gas emission *** on land coverage percentages,Floatovoltaics have a large solar PV capacity of 32.3 Megawatts(MW);forest-based photovoltaics(Forestvoltaics)achieve maximum yearly savings of RM 37,268,550;and Building Applied Photovoltaics(BAPV)have the lowest CO2 emissions and net carbon dioxide reduction compared to other plant *** also clarifies the purpose of using both software tools to achieve a comprehensive understanding of both technical and economic aspects.

关键词： Helioscope solar photovoltaic PV GIS performance land coverage economics

Radiological Evaluation of Spinal Instrumentation as Treatment for Adolescent Idiopathic Scoliosis, a Single Saudi Center 5-Year Experience

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Open Journal of Radiology 2018年第1期8卷 1-12页

作者： amir Monir Ali Department of Radiodiagnosis Faculty of Medicine Mansoura University Mansoura Egypt Department of Medical Imaging Sultan Bin Abdulaziz Humanitarian City Riyadh Kingdom of Saudi Arabia

Aim of the Study: The aim of this work is to radiologically evaluate the postoperative outcomes of spinal instrumentation performed as a treatment for Adolescent Idiopathic Scoliosis (AIS) on 5-year follow up basis, and to correlate with different clinical scenarios. Materials and Methods: One hundred (100) AIS consecutive patients treated with spinal instrumentation were included in this study. The study period was from 2012 to 2017. All patients had radiological evaluations including total spine x-rays, low dose CT scan using Orthopedic Metal Artifact Reduction (OMAR) software and MRI, after obtaining the informed consents and approval of the institution ethical board. Radiological evaluation included Cobb angle measurement assessed pre, postoperatively and at regular intervals within the 5-year period. Results: Of the 100 patients included, 24 were females and 76 were males. The average age at operation was 16.5 years. Sixty seven (67%) patients showed good correction and maintenance of the spinal curves where the mean Cobb angle was 68°?preoperatively and 21°postoperatively, representing a correction rate of 74%. Thirty three (33%) patients showed complications including postoperative infection (13), surgical revision (4), pseudarthrosis (3), neurological deficits (5), screw loosening (7) and complete hardware failure (1);in whom the preoperative mean Cobb angle was 56°compared to the patients with no complications (p = 0.288). In males, there were postoperative complications in 27 out of 76 and in females 5 out of 24, (p = 0.027). The average duration of follow-up was 3.7 years for all cases. Conclusion: Five-year follow up of patients with AIS treated with spinal instrumentation demonstrates good improvement and maintenance of the corrected spinal curves in two thirds of patients, one third showed variable minor and major complications. Low dose CT scan with OMAR provided an effective modality for evaluation.

关键词： AIS Instrumentation Radiology Long-Term Follow up

Immunomodulatory effects and structure-activity relationship of botanical pentacyclic triterpenes:A review

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Chinese Herbal Medicines 2020年第2期12卷 118-124页

作者： Nurul Hikmah Harun Abdi Wira Septama Wan amir Nizam Wan Ahmad Rapeah Suppian School of Health Sciences Heath CampusUniversiti Sains MalaysiaKubang Kerian 16150Malaysia School of Biomedicine Faculty of Health SciencesUniversiti Sultan Zainal AbidinKuala Nerus 21300Malaysia Research Center for Chemistry Indonesian Institute of SciencesKawasan Puspitek SerpongTangerang Selatan 15314Indonesia

Botanical pentacyclic triterpenes possessed a broad range of pharmacological activities such as antioxidant,anti-tumor,anti-microbial and anti-inflammatory *** is believed that the mechanisms involved in these bioactivities are due to the modulation of immune ***,the pharmacological validation on immunomodulatory of pentacyclic triterpenes derived from higher plants is very limited and several existence review papers related for this group of compound have not been focused for this *** this review,we have highlighted several studies on immunomodulatory potential of botanical pentacyclic triterpenes isolated from wide array of different species of medicinal plants and herbs based on various preclinical in vitro and animal *** review also attempts to discuss on bioactivities of compouns related with their structure-activity ***,the evaluation of pentacyclic triterpenes offers a great opportunity to discover adjuvants and novel therapeutic agents that presented beneficial immunomodulatory properties.

关键词： botanical immunomodulatory pentacyclic triterpenes structure activity relationship

Clinical Practice Recommendations for Assessment and Management of Hypothyroidism

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International Journal of Clinical Medicine 2022年第12期13卷 650-678页

作者： Saud Alsifri Nasser Aljuhani Ahmed Aljedai Tariq Nasser Fahad Alsabaan Hajer Almudaiheem Ashraf amir Ebtissam Baissa Nadia Ghannam Mohammed Aldawish Afaf Alshammari Emad R. Issak Alhada Armed Forces Hospital Taif Saudi Arabia East Jeddah Hospital Jeddah Saudi Arabia Ministry of Health Riyadh Saudi Arabia Ministry of National Guards Hospital Jeddah Saudi Arabia Security Forces Hospital Riyadh Saudi Arabia International Medical Center Jeddah Saudi Arabia Alrawdaha General Hospital Dammam Saudi Arabia First Clinics Jeddah Saudi Arabia Prince sultan Military Hospital Riyadh Saudi Arabia Aslam Center Cairo Egypt

Hypothyroidism is a common disorder, potentially severe, often clinically ignored, easily diagnosed by laboratory tests, and highly treatable. It may cause chronic illnesses if left untreated. Saudi Society of Endocrinology and Metabolism (SSEM) assembled a panel of twelve endocrinologists with experience in thyroid diseases in adults and children and made up a task force. An initial concept proposal that included types of hypothyroidism, population, scope, and prevalence in Saudi Arabia was obtained. The proposal was divided into several topics discussed in February 2022. The panel approved that the consensus will include all types of hypothyroidism in Saudi Arabia, screening, diagnosis, management, and special population. A literature review was carried out. Most of the latest international guidelines were screened in Europe and USA. The literature search was completed in March 2022. They drafted a report that was distributed to the entire panel. Approval of the recommendations required consensus, defined as a majority approval. The recommendations were revised to accommodate any differences of opinion until a consensus was reached. Recommendations were finally formulated on April 2022. Subsequently, the panel reviewed and discussed the supporting rationale of the revised recommendations. This article presents these practical recommendations.

关键词： Hypothyroidism Screening Diagnosis Management