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Intelligent Smart Grid Stability Predictive model for Cyber-Physical Energy Systems

Computer Systems Science & Engineering 2023年第2期44卷 1219-1231页

作者： Ashit Kumar Dutta manal Al Faraj Yasser Albagory mohammad zeid m.alzamil Abdul Rahaman Wahab Sait Department of Computer Science and Information Systems College of Applied SciencesAlMaarefa UniversityAd DiriyahRiyadh13713Kingdom of Saudi Arabia Department of Computer Engineering College of Computers and Information TechnologyTaif UniversityTaif21944Kingdom of Saudi Arabia Department of Archives and Communication King Faisal UniversityAl AhsaHofuf31982Kingdom of Saudi Arabia

A cyber physical energy system(CPES)involves a combination of pro-cessing,network,and physical *** smart grid plays a vital role in the CPES model where information technology(IT)can be related to the physical *** the same time,the machine learning(mL)modelsﬁnd useful for the smart grids integrated into the CPES for effective decision ***,the smart grids using mL and deep learning(DL)models are anticipated to lessen the requirement of placing many power plants for electricity *** this aspect,this study designs optimal multi-head attention based bidirectional long short term memory(OmHA-mBLSTm)technique for smart grid stability predic-tion in *** proposed OmHA-mBLSTm technique involves three subpro-cesses such as pre-processing,prediction,and hyperparameter *** OmHA-mBLSTm technique employs min-max normalization as a pre-proces-sing ***,the mBLSTm model is applied for the prediction of stability level of the smart grids in *** the same time,the moth swarm algorithm(mHA)is utilized for optimally modifying the hyperparameters involved in the mBLSTm *** ensure the enhanced outcomes of the OmHA-mBLSTm technique,a series of simulations were carried out and the results are inspected under several *** experimental results pointed out the better outcomes of the OmHA-mBLSTm technique over the recent models.

关键词： Stability prediction smart grid cyber physical energy systems deep learning data analytics moth swarm algorithm

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High surface area and mesoporous activated carbon from KOH-activated dragon fruit peels for methylene blue dye adsorption:Optimization and mechanism study

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Chinese Journal of Chemical Engineering 2021年第4期34卷 281-290页

作者： Ali H.Jawad Ahmed Saud Abdulhameed Lee D.Wilson Syed Shatir A.Syed-Hassan zeid A.ALOthman mohammad Rizwan Khan Faculty of Applied Sciences Universiti Teknologi MARA40450 Shah AlamSelangorMalaysia Department of medical Instrumentation Engineering Al-Mansour University CollegeBaghdadIraq Department of Chemistry University of SaskatchewanSaskatoonSaskatchewan S7N 5C9 Canada Faculty of Chemical Engineering Universiti Teknologi MARA40450 Shah AlamSelangorMalaysia Chemistry Department College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia

In this study,an alternative precursor for production of activated carbon was introduced using dragon fruit(Hylocereus costaricensis)peel(DFP).moreover,KOH was used as a chemical activator in the thermal carbonization process to convert DFP into activated carbon(DFPAC).In order to accomplish this research,several approaches were employed to examine the elemental composition,surface properties,amorphous and crystalline nature,essential active group,and surface morphology of the *** BrunauerEmmettTeller test demonstrated a mesoporous structure of the DFPAC has a high surface area of 756.3 m2g *** cationic dye methylene Blue(mB)was used as a probe to assess the efficiency of DFPAC towards the removal of mB dye from aqueous *** effects of adsorption input factors(*** dose(A:0.040.12 g L 1),pH(B:310),and temperature(C:3050℃))were investigated and optimized using statistical analysis(*** design(BBD)).The adsorption kinetic model can be best categorized as the pseudofirst order(PFO).Whereas,the adsorption isotherm model can be best described by Langmuir model,with maximum adsorption capacity of DFPAC for mB dye was 195.2 mg g 1 at 50℃.The adsorption mechanism of mB by DFPAC surface was attributed to the electrostatic interaction,pp interaction,and ***,the results support the ability of DFP to be a promising precursor for production of highly porous activated carbon suitable for removal of cationic dyes(***).

关键词： Statistical modeling Activated carbon Dragon fruit peels Box-Behnken design methylene blue dye Adsorption

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Evaluation of Bilateral mental Nerve Block as an Alternative to General Anesthesia for Resection of Lower Lip Tumors

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Surgical Science 2017年第8期8卷 319-325页

作者： Ashraf Khater Islam A. Elzahaby mohamed Hamdy mohammad Zuhdy Omar Hamdy mohamed Ezzat mahmoud Abdelaziz Ahmad m. Farid mansour Elmoatasem Amr Hassan Khalid Atallah mahmoud mostafa Saleh maha A. Abo-zeid Amr Yassin Ola Taha Abd Eldayem mona Gad Department of Surgical Oncology Mansoura Oncology Center (OCMU) Faculty of Medicine Mansoura University Mansoura Egypt Anesthesia and Surgical Intensive Care Department Mansoura University Hospital Faculty of Medicine Mansoura University Mansoura Egypt

Objective: Nerve blockade is commonly used in oncosurgical procedures as an alternative to general anesthesia for older patients and those with significant medical problems. We report a single tertiary oncology center experience in performing various lip resections and reconstructive techniques using this technique. Patients and methods: sixty patients with lower lip tumors were enrolled into this study with exclusion of refusing, non-compliant and critically ill patients. A solution of 4 ml 2% Lidocaine and epinephrine was put in a 5 ml syringe. Half the solution (2 ml) was injected into each side with a 23 gauge needle and after 5 minutes the surgical resection was carried out after testing for anesthesia. Results: The mean age was 68 ± 6.2 years. The mean ASA score was 3 ± 0.75. There were 4 cases who expressed painful sensation and their operations were completed with fentanyl increments. mean hospital stay was 1 ± 0.75 days. There were three cases of wound gaping who were treated with secondary closure in an outpatient basis. One patient expressed postoperative acute ischemic heart pain that was managed with anti-ischemic measurements. Conclusion: Bilateral mental nerve block is a safe and effective alternative to general anesthesia in lower lip tumors’ resection especially in older patients and those with poor tolerance for general anesthesia provided that there is no need for cervical nodal dissection.

关键词： mental Nerve Block Lip Tumors Lidocaine

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