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7. Contributors

Author

Abas, Naeem, primary, Abdelaziz, Almoataz Y., additional, Aleem, Shady H.E. Abdel, additional, Ali, Ziad M., additional, Almakhles, Dhafer, additional, Bai, Xiaoqing, additional, Bansal, Ramesh C., additional, Barik, Soumyabrata, additional, Behi, Hamidreza, additional, Behi, Mohammadreza, additional, Bekker, Bernard, additional, Berecibar, Maitane, additional, Biswal, Monalisa, additional, Ćalasan, Martin, additional, Chaitanya, B.K., additional, Chihota, M. Justice, additional, Das, Debapriya, additional, Diaaeldin, Ibrahim Mohamed, additional, Ebeed, Mohamed, additional, El-Rafei, Ahmed, additional, Gandoman, Foad H., additional, Gao, Wenzhong, additional, Hernandez-Tolentino, Agustina, additional, Jagabar Sathik, M., additional, Jaguemont, Joris, additional, Kalair, Ali Raza, additional, Kalair, Anam, additional, Kamel, Salah, additional, Kecojević, Katarina, additional, Khan, Nasrullah, additional, Kou, Wei, additional, Kumar, Ashwani, additional, Kumar, Rajesh, additional, Lukačević, Ognjen, additional, Mahmud, M.A., additional, Marmolejo-Saucedo, Jose Antonio, additional, Mazaheri, Hesam, additional, Moeini-Aghtaie, Moein, additional, Nasrat, Loai, additional, Park, Sung-Yeul, additional, Pazoki, Mohammad, additional, Prem, P., additional, Ramadan, Ashraf, additional, Ramirez, Juan M., additional, Ranjbar, Hossein, additional, Rishikesh, N., additional, Saber, Hossein, additional, Saleem, Muhammad Shoaib, additional, Saxena, Akash, additional, Saxena, Nitin Kumar, additional, Senthil Kumar, J., additional, Seyedmahmoudian, Mehdi, additional, Stojcevski, Alex, additional, Su, Xiangyang, additional, Trevor Gaunt, C., additional, Van Mierlo, Joeri, additional, Venkatanagaraju, Kasimala, additional, Yadav, Anamika, additional, Zhu, Rujie, additional, and Zobaa, Ahmed F., additional

Published
2021
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11. Decentralized Energy Management of Multiagent Distribution Systems Considering the Grid Reliability and Agent Misbehavior

Author

Aghamohammadi, Farshid, Abbaspour, Ali, Saber, Hossein, Fattaheian-Dehkordi, Sajjad, and Lehtonen, Matti

Abstract

In recent years, the high expansion of independent energy sources and development of multiagent structures have resulted in new challenges in the efficient power management of distribution networks. In this regard, decentralized management along considering operational concerns of the system will be a key factor in running the future multiagent systems. Therefore, this article proposes a decentralized framework based on the alternating direction method of multipliers for managing the peer-to-peer (P2P) energy trading in a multiagent distribution system while considering the technical constraints and reliability of the network. This strategy facilitates considering the effects of the network reliability while running the agents’ optimization in a decentralized manner. Respectively, each agent would tend to exchange energy with more reliable agents, which would result in the resilient operation of the network. Moreover, the uncertainty of renewable energy sources is addressed using distributionally robust optimization. Additionally, with the aim of increasing the security of the P2P energy market against communication errors and agents’ misbehavior, an algorithm is developed to identify the existence of a problem in the market convergence as well as how it could be mitigated. Finally, this scheme is investigated on 37 and 69 bus test systems to study its capability in running sustainable energy systems.

Published
2024
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30. Evaluation of Helicobacter pylori vacA genotypes in Iranian patients with peptic ulcer disease

Author

Cheah Yoke Kqueen, Behnam Kamalidehghan, Ali Saber Hossein Abadi, Patimah Ismail, Mohammad Halimi Jelodar, and Zivar Salehi

Subjects
Adult, Male, medicine.medical_specialty, Peptic Ulcer, Genotype, Physiology, Peptic, Spirillaceae, Virulence, Iran, Gastroenterology, Young Adult, Bacterial Proteins, Internal medicine, Medicine, CagA, Humans, Alleles, Antigens, Bacterial, biology, Helicobacter pylori, business.industry, Stomach, Middle Aged, bacterial infections and mycoses, biology.organism_classification, digestive system diseases, medicine.anatomical_structure, bacteria, Female, Gastritis, medicine.symptom, business
Abstract

Helicobacter pylori is the major cause of active chronic gastritis and peptic ulcers in humans and has been linked to gastric carcinoma and lymphoma. The vacuolating cytotoxin vacA and cag pathogenicity island (cag PAI) are two identified virulence factors that are considered to have an important role in the pathogenesis of H. pylori infection. The aim of this study is to investigate the H. pylori vacA alleles in Iranian patients with peptic ulcer disease. In order to investigate this, biopsy specimens were obtained from 84 patients with gastric ulcer, gastritis, and duodenal ulcer. DNA extraction and PCR were used to detect the presence or absence of glmM, cagA and to assess the polymorphism of vacA. Of the 77 glmM PCR-positive biopsy specimens, 55 (71%) had the vacA signal sequence genotype s1, and 22 (29%) had subtype s2. vacA mid-region analysis revealed that 31 (40%) were vacA m1 and 46 (60%) were m2. The presence of the cagA gene correlated with vacA signal sequence type s1, whereas type s2 was predominantly found in cagA-negative samples (P < 0.001). Thus, the detection of vacA and cagA, virulence markers described in several clinical outcomes may be used to help the treatment and prevention of H. pylori in Iran.

Published
2008

32. Sulfur Removal from Dibenzothiophene by Newly Isolated Paenibacillus validus Strain PD2 and Process Optimization in Aqueous and Biphasic (Model-Oil) Systems.

Author

Derikvand P, Etemadifar Z, and Saber H

Subjects
Bacterial Proteins genetics, Bacterial Proteins metabolism, Biodegradation, Environmental, Gene Expression Regulation, Bacterial, Paenibacillus classification, Paenibacillus genetics, Sulfur chemistry, Paenibacillus metabolism, Sulfur metabolism, Thiophenes chemistry
Abstract

Dibenzothiophene (DBT) is an organic sulfur compound which remains in oil after hydrodesulfurization (HDS) process and can be removed by biodesulfurization (BDS). A new strain of Paenibacillus validus (strain PD2) was isolated from oil contaminated soils that is able to desulfurize DBT. HPLC analysis and Gibbs assay showed that this strain was capable to convert DBT to 2-Hydroxybiphenyl (2-HBP) as final product. The presence of dszC gene confirmed that DBT desulfurization occurred through the 4S pathway. Maximum growth and the highest induction in dsz operon obtained in the presence of dimethyl sulfoxide (DMSO) as sole sulfur source. DBT concentration, temperature and pH were optimized statistically for growing and resting cells by using Response Surface Methodology (RSM). All parameters in growing cells had a significant effect on 2-HBP production during BDS of DBT by P. validus PD2, although in resting cells temperature in range of 20-40 degrees C was not a significant factor. Maximum BDS for growing cells was obtained at 0.41 mM DBT concentration, pH 6.92 and temperature 31.23 degrees C. For resting cells, optimum pH, temperature and DBT concentration were 6.62, 27.73 degrees C and 7.86 mM respectively. The results of this study showed that high concentrations of DBT could be desulfurized by P. validus strain PD2 in model-oil. Thus, the isolated strain could be introduced as a proper candidate for biodesulfurization of organic sulfur in the oil industry.

Published
2015

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