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  1. Article ; Online: Development of a new CO2 liquefaction system using the Linde–Hampson process, Kalina power generation unit, and flat plate solar collectors with Al2O3/H2O nanofluid

    Bahram Ghorbani / Alireza Khatami Jouybari

    Energy Science & Engineering, Vol 10, Iss 11, Pp 4252-

    2022  Volume 4272

    Abstract: Abstract Greenhouse gas emissions into the atmosphere have had devastating environmental effects, including ozone depletion and global warming. Carbon dioxide (CO2) is widely used in oil and gas plants, the food industry, and as a working fluid in the ... ...

    Abstract Abstract Greenhouse gas emissions into the atmosphere have had devastating environmental effects, including ozone depletion and global warming. Carbon dioxide (CO2) is widely used in oil and gas plants, the food industry, and as a working fluid in the power industry. Carbon dioxide is liquefied for long‐term storage, to be transported to remote areas, and is used for peak shaving in the power plants. Solar flat plate collectors and wasted heat from the CO2 liquefaction system can be used in power plant systems. Also, the use of nanoparticles in the collectors improves the thermal properties of the working fluid and increases the efficiency of solar collectors. This study has developed a new hybrid system for CO2 liquefaction using Linde–Hampson system, Kalina power generation unit, and flat plate solar collectors. The Linde–Hampson system's dissipated heat and solar collectors are used to supplying part of the power of the CO2 liquefaction system. The combined system produces 9416 kmol/h of liquid CO2 by absorbing 35.97 MW of power. The Kalina power generation unit provides 9.546 MW of power by absorbing 76.98 MW of the CO2 liquefaction cycle's dissipated heat and 91.18 MW from flat plate collectors. Based on the output of exergy assessment, exergy efficiency and exergy degradation of the developed integrated structure are 44.16% and 118.3 MW, respectively. Moreover, significant portions of exergy destruction in the combined process belong to solar collectors (74.68%), heat exchangers (12.47%), and compressors (7.157%), respectively. The use of Al2O3 nanoparticles in pure water has been investigated for heat transfer in flat panel solar collectors. According to the sensitivity analysis results, as the volume ratio of particles in nanofluid increases to 6%, the production capacity of the Kalina cycle and exergy efficiency improves to 9.56 MW and 9.522%, respectively. Also, as the pressure of the pumped fluid in the Kalina cycle increases from 800 to 1600 kPa, the exergy yield of the Kalina cycle and the exergy ...
    Keywords Al2O3/H2O nanofluid ; CO2 liquefaction system ; flat plate solar collectors ; Integrated structure ; Kalina power generation unit ; Technology ; T ; Science ; Q
    Subject code 670
    Language English
    Publishing date 2022-11-01T00:00:00Z
    Publisher Wiley
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Leprosy updates

    Alireza Khatami

    Dermatology and Cosmetic, Vol 6, Iss 2, Pp 130-

    2015  Volume 133

    Abstract: Leprosy is a chronic infectious disease which mainly affects the skin and peripheral nervous system. It has been associated with significant fear and stigma because of causing disabilities and deformities. According to the latest reports by World Health ... ...

    Abstract Leprosy is a chronic infectious disease which mainly affects the skin and peripheral nervous system. It has been associated with significant fear and stigma because of causing disabilities and deformities. According to the latest reports by World Health Organization (WHO), there were more than 180000 registered leprosy cases in the first quarter of 2014 and over 214000 new cases were detected in 2013. In this brief review, updates on a new causative agent for leprosy, Mycobactrium leprosmatosis, armadillos and the possibility of existence of a zoonotic form of leprosy, new strains of M. leprae and their importance, and the latest available leprosy statistics in Iran will be presented.
    Keywords leprosy ; Mycobacterium leprosmatosis ; armadillo ; Dermatology ; RL1-803 ; Medicine ; R
    Language Persian
    Publishing date 2015-07-01T00:00:00Z
    Publisher tums
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: In memory of Dr. David L. Sackett (1934-2015)

    Alireza Khatami

    Dermatology and Cosmetic, Vol 6, Iss 1, Pp 75-

    2015  Volume 78

    Abstract: David Lawrence Sackett, OC, MD, FRSC, FRCP was an American-Canadian physician, trialist, and teacher. He is best known as one of the pioneers of evidence-based medicine (EBM), which is arguably the most important movement in medicine over the past three ... ...

    Abstract David Lawrence Sackett, OC, MD, FRSC, FRCP was an American-Canadian physician, trialist, and teacher. He is best known as one of the pioneers of evidence-based medicine (EBM), which is arguably the most important movement in medicine over the past three decades. He founded the first clinical epidemiology department in McMaster University in Hamilton, Canada in 1967. In addition, he was the head of the Center for the Evidence-Based Medicine in Oxford, UK. He also was the first chair of Cochrane Collaboration and the first founding coeditor of the journal of Evidence-Based Medicine and had many other honors. He published 12 books, 60 chapters in other books, and about 300 articles in scientific and medical journals. He died on May 13, 2015 at age 80 because of cholangiocarcinoma. While Dr. Sackett will be missed by his friends, colleagues, mentees as well as EBM proponents and followers all over the world, his contributions to EBM in particular, and to medicine in general will never be forgotten.
    Keywords evidence-based medicine ; clinical epidemiology ; critical appraisal ; Dermatology ; RL1-803 ; Medicine ; R
    Subject code 900
    Language Persian
    Publishing date 2015-04-01T00:00:00Z
    Publisher tums
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Global Status of Bufavirus, Cosavirus, and Saffold Virus in Gastroenteritis

    Mohammad Hossein Razizadeh / Alireza Khatami / Mohammad Zarei

    Frontiers in Medicine, Vol

    A Systematic Review and Meta-Analysis

    2022  Volume 8

    Abstract: Background: Bufavirus (BuV), Human Cosavirus (HCoSV), and Saffold (SAFV) virus are three newly discovered viruses and have been suggested as possible causes of gastroenteritis (GE) in some studies. The aim of the present study was to estimate the overall ...

    Abstract Background: Bufavirus (BuV), Human Cosavirus (HCoSV), and Saffold (SAFV) virus are three newly discovered viruses and have been suggested as possible causes of gastroenteritis (GE) in some studies. The aim of the present study was to estimate the overall prevalence of viruses and their association with GE.Methods: A comprehensive systematic search was conducted in Scopus, Web of Science, PubMed, and Google scholar between 2007 and 2021 to find studies on the prevalence of BuV, HCoSV, and SAFV viruses.Result: Meta-analysis of the 46 included studies showed the low prevalence of BuV (1.%, 95% CI 0.6–1.5%), HCoSV (0.8%, 95% CI 0.4–1.5%), and SAFV (1.9%, 95% CI 1.1–3.1%) worldwide. Also, no significant association between these viruses and GE was observed. BuV was isolated from patients with GE in Africa, while SAFV was more common in Europe. BuV1 and BuV2 have the same prevalence between the three identified genotypes of BuV. HCoSV-C was the most prevalent genotype of HCoSV, and SAFV2 was the commonest genotype of SAFV. All of these viruses were more prevalent in children older than 5 years of age.Conclusion: This was the first meta-analysis on the prevalence and association of BuV, HCoSV, and SAFV with GE. While no significant association was found between infection with these viruses and GE, we suggest more studies, especially with case-control design and from different geographical regions in order to enhance our knowledge of these viruses.
    Keywords Bufavirus ; Saffold virus ; Cosavirus ; gastroenteritis ; meta-analysis ; Medicine (General) ; R5-920
    Subject code 500
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: NEUROIMAGING FINDING OF ORGANIC ACADEMIA IN CHILDREN

    Alireza KHATAMI

    Iranian Journal of Child Neurology, Vol 6, Iss 1-suppl.1, Pp 17-

    2012  Volume 17

    Keywords Imaging ; organic acidemia ; children ; aminoacid. ; Neurology. Diseases of the nervous system ; RC346-429 ; Neurosciences. Biological psychiatry. Neuropsychiatry ; RC321-571 ; Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Neurology ; DOAJ:Medicine (General) ; DOAJ:Health Sciences ; Pediatrics ; RJ1-570 ; DOAJ:Pediatrics
    Language English
    Publishing date 2012-01-01T00:00:00Z
    Publisher Iranian Child Neurology Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: NEUROIMAGING FINDING OF ORGANIC ACADEMIA IN CHILDREN

    Alireza KHATAMI

    Iranian Journal of Child Neurology, Vol 6, Iss

    2012  Volume 1

    Abstract: Organic academia are diverse group of disorders characterized by abnormal degredation of specific amino acid in the specific catabolism due to an enzymeactivity defect which mainly due to enzyme deficiency. The majority of the classic organic acid ... ...

    Abstract Organic academia are diverse group of disorders characterized by abnormal degredation of specific amino acid in the specific catabolism due to an enzymeactivity defect which mainly due to enzyme deficiency. The majority of the classic organic acid disorders are caused by abnormal catabolism of branched-chain amino acids like lysine. maple syrup urine disease (MSUD), propionic acidemia, methylmalonic acidemia (MMA), Ethylmalonic academia,glutaricacidemia type I and so on. The most common presentation is related to toxic encephalopathy which are as follows: vomiting, poor feeding,neurologic symptoms such as seizures and abnormal tone, and lethargy progressing to coma and the outcome may be loss of intellectual function, ataxia, psychiatric symptoms and other neurological deficit.Along with laboratory tests, Imaging have some characteristic findings in determination of these wide range of disease and can help in categorization and differentiation these form of brain metabolic disorders in conjunction by other investigative study. In this lecture trying to review imaging findings of more common organic academia in children will be done.
    Keywords Imaging ; organic acidemia ; children ; aminoacid. ; Neurology. Diseases of the nervous system ; RC346-429 ; Neurosciences. Biological psychiatry. Neuropsychiatry ; RC321-571 ; Internal medicine ; RC31-1245 ; Medicine ; R ; Pediatrics ; RJ1-570
    Subject code 610
    Language English
    Publishing date 2012-03-01T00:00:00Z
    Publisher Iranian Child Neurology Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Evidence-based dermatology

    Alireza Khatami

    Dermatology and Cosmetic, Vol 3, Iss 4, Pp 227-

    Correct reporting of the outcome comparisons in clinical trials

    2012  Volume 233

    Abstract: According to evidence-based medicine, randomized controlled clinical trials are a group of research designs which provides the highest level of clinical evidence, particularly regarding therapeutic or preventive interventions. Considering the dramatic ... ...

    Abstract According to evidence-based medicine, randomized controlled clinical trials are a group of research designs which provides the highest level of clinical evidence, particularly regarding therapeutic or preventive interventions. Considering the dramatic increase in the number of published clinical trials in medical journals, the readership need to have knowledge about the problems that may occur during design and conduct of these studies, as well as about proper reporting of them. Due to importance of these studies in clinical medicine, several guidelines have been developed regarding designing, conducting and reporting clinical trials. One of the most important guidelines which has been developed to alleviate the problems in reporting randomized clinical trials is Consolidated Standards for Reporting Trials (CONSORT). In this article, some crucial points with regards to the report of the comparison of outcomes of interventions in randomized controlled trials will be reviewed briefly.
    Keywords randomized controlled trials ; comparative study ; evidence-based medicine ; Dermatology ; RL1-803 ; Medicine ; R ; DOAJ:Dermatology ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Subject code 610
    Language Persian
    Publishing date 2012-12-01T00:00:00Z
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Evaluation of diagnostic test accuracy studies

    Alireza Khatami

    Dermatology and Cosmetic, Vol 2, Iss 1, Pp 47-

    2011  Volume 59

    Abstract: nIn the recent years, advances in different fields of technology have been resulted in a dramatic increase in the diagnostic methods and tests in different branches of clinical medicine with a consequent increase in the number of scientific publications ...

    Abstract "nIn the recent years, advances in different fields of technology have been resulted in a dramatic increase in the diagnostic methods and tests in different branches of clinical medicine with a consequent increase in the number of scientific publications related to the application of those tests and methods in the diagnosis or prevention of diseases. Dermatology is not an exception. Since, evidence-based medicine emphasizes on the appropriate use of the current best clinical research evidence in the diagnosis or treatment of each individual patient acknowledging his/her values, the capability of dermatologists in appraisal and application of the publications, which reports the results of diagnostic test accuracy studies cannot be ignored. In this article, after a brief review on basic issues in diagnostic test accuracy studies, principles of critical appraisal of these studies, from an evidence-based viewpoint, will be discussed. General strategies for evaluation of validity, applicability and quality assessment of a diagnostic test study will be provided.
    Keywords diagnostic accuracy ; diagnostic tests ; evidence-based medicine ; Dermatology ; RL1-803 ; Medicine ; R ; DOAJ:Dermatology ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Subject code 001
    Language Persian
    Publishing date 2011-03-01T00:00:00Z
    Publisher Tehran University of Medical Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Analytical methods for solving nonlinear motion of simple pendulum attached to a rotating rigid frame

    Alireza Khatami Jouybari / Mohamad Ramzani

    International Journal of Mechatronics, Electrical and Computer Technology, Vol 4, Iss 10, Pp 11-

    2014  Volume 22

    Keywords Electronic computers. Computer science ; QA75.5-76.95 ; Instruments and machines ; QA71-90 ; Mathematics ; QA1-939 ; Science ; Q
    Language English
    Publishing date 2014-01-01T00:00:00Z
    Publisher Austrian E-Journals of Universal Scientific Organization
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Evaluation of provided clinical information on the histopathology request forms and histopathological findings to detect early mycosis fungoides according to ISCL algorithm

    Azita Nikoo / Babak Hosseindoost / Alireza Khatami

    Dermatology and Cosmetic, Vol 6, Iss 1, Pp 31-

    2015  Volume 37

    Abstract: Background and Aim: Mycosis fungoides (MF) is the most common primary cutaneous lymphoma. Diagnosis of early MF (eMF) is often difficult due to its resemblance of benign dermatoses. The aim of this study was to evaluate the role of provided clinical ... ...

    Abstract Background and Aim: Mycosis fungoides (MF) is the most common primary cutaneous lymphoma. Diagnosis of early MF (eMF) is often difficult due to its resemblance of benign dermatoses. The aim of this study was to evaluate the role of provided clinical information on the histopathology request forms for diagnosis of eMF according to the International Society of Cutaneous Lympoma (ISCL) criteria. Methods: In this cross-sectional study, 108 patients admitted to Razi Hospital, Tehran, between April 2012 and November 2013, who were biopsied as eMF cases, were recruited. Based on partial application of ISCL algorithm, the checklist of clinical and histopathological findings were scored. Results: Eighty-five (78.7%) patients received maximum total clinical and histopathological scores (4) and their eMF were definitely diagnosed. Sixteen (14.8%) patients received a total score of 3, and suggestive eMF diagnosis was made. Further work up such as immunohistochemistry (IHC) evaluation were recommended. Seven patients (6.5%) received a total score of 2, which did not confirm eMF diagnosis. Follow up was recommended. In 14 (87.5%) of 16 patients who had received a total score of 3, the definite diagnosis of eMF was made according to the results of IHC. They were referred to receive treatment. In 2 patients (12.5%) diagnosis of eMF were not confirmed by IHC. They were recommended to undergo polymerase chain reaction (PCR) evaluation Conclusion: Many MF cases can be diagnosed in the early stages using a combination of clinical and histopathological criteria.
    Keywords mycosis fungoides ; primary cutaneous lymphoma ; diagnosis ; diagnostic criteria ; Dermatology ; RL1-803 ; Medicine ; R
    Subject code 610
    Language Persian
    Publishing date 2015-04-01T00:00:00Z
    Publisher tums
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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