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Reconstruction based approach to sensor fault diagnosis using auto-associative neural networks

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Journal of Central South University 2014年第6期21卷 2273-2281页

作者： Mousavi Hamidreza Shahbazian Mehdi jazayeri-rad hooshang Nekounam Aliakbar Department of Automation and Instrumentation Engineering Petroleum University of Technology Khuzestan Gas Company Instrumentation UnitAhwaz 63428Iran

Fault diagnostics is an important research area including different *** component analysis(PCA)is a linear technique which has been widely *** nonlinear processes,however,the nonlinear principal component analysis(NLPCA)should be *** this work,NLPCA based on auto-associative neural network(AANN)was applied to model a chemical process using historical ***,the residuals generated by the AANN were used for fault detection and then a reconstruction based approach called enhanced AANN(E-AANN)was presented to isolate and reconstruct the faulty sensor *** proposed method was implemented on a continuous stirred tank heater(CSTH)and used to detect and isolate two types of faults(drift and offset)for a *** results show that the proposed method can detect,isolate and reconstruct the occurred fault properly.

关键词： fault diagnosis nonlinear principal component analysis auto-associative neural networks

Facile synthesis of[1,2,4]triazino[4,3-b][1,2,4,5]tetrazepin derivatives by a one-pot reactions using 4-amino-3-hydrazinyl-6-methyl-1,2,4-triazin-5(4H)-one

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Chinese Chemical Letters 2010年第12期21卷 1419-1422页

作者： hooshang Vahedi Ghadir Rajabzadeh Fahimeh Farvandi Department of Chemistry Payame Noor University(PNU)MashhadIran Khorasan Research Institute for Food Science and Technology Iran

4-Amino-3-mercapto-6-methyl-l,2,4-triazin-5（4H）-one 1 converted to 4-amino-6-methy-3-（methylthio）-1,2,4-triazin-5（4H）-one by methylation with methyl *** hydrazination of the resulting compound afforded 4-amino-3-hydrazinyl-6- methyl-l,2,4-triazin-5（4H）-one 2 as a building block,to the synthesis of some novel derivatives of[1,2,4]triazino- [4,3,b][1,2,4,5]tetrazepine 3-6,by the reaction with 3-chloropentane-2,4-dione,chloro acetonitrile,1,3-dichloroacetone,and methyl *** general synthetic procedure can be extended to the preparation of wide variety of tetrazepines using 1,2- bielectrophiles derivatives.

关键词： 4-Amino-3-hydrazinyl-6-methyl-1,2,4-triazin-5(4H)-one Triazino[4,3,b]tetrazepine 3-Chloropentane-2,4-dione Chloro acetonitrile 1,3-Dichloroacetone Methyl bromoacetate

The Gol-e-Zard Zn-Pb Deposit, Lorestan Province, Iran: a Metamorphosed SEDEX Deposit

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Acta Geologica Sinica(English Edition) 2014年第1期88卷 142-153页

作者： Alireza ZARASVANDI Mona SAMETI Martiya SADEGHI Fatemeh RASTMANESH hooshang POURKASEB Department of Geology Faculty of Earth Science Shahid Chamran University Department of Mineral Resources Geological Survey of Sweden

The Gol-e-Zard Zn-Pb deposit is one of several sediment-hosted Zn-Pb deposits found in the central part of the Sanadaj-Sirjan Zone, known as the Isfahan-Malayer belt, western Iran. Mineralization occurs in Upper Triassic to Jurassic phyllites and meta-sandstones. Sphalerite and galena are the most abundant metallic ores, with minor chalcopyrite. Calcite and quartz are the main gangue minerals. Fissure filling, replacement textures and especially mineralized faults, suggest an epigenetic stage in the Gol-e-Zard deposit formation. Geochemical studies of mineralized rocks show high concentrations of Zn, Pb and Cu,（Zn and Pb 〉 10000 ppm and Cu average 3000 ppm）. LREE enrichment（LREE〉HREE, La/Lu average 1.44） and positive Eu anomalies（Eu/Eu＊〉1 average 1.67） indicate reducing conditions during the deposition of deposit. However, some samples do not display negative Ce anomalies, which indicate that localized oxidizing conditions are also present. This study indicates that the Gol-e-Zard deposit formed due to circulating hydrothermal fluids in a marine environment. A SEDEX-type genesis, which is defined by circulating hydrothermal fluids through sediments in a marine environment, and syngenetic precipitation of Zn and Pb sulphides, is suggested for the Gol-e-Zard deposit. Emplacement of some granitoid intrusions such as the Aligudarz granitoid intrusion remobilized mineralizing fluids and metamorphosed the Gol-e-Zard deposit.

关键词： SEDEX REE metamorphosed Sanadaj-Sirjan Zone Iran

A laboratory investigation of bed-load transport of gravel sediments under dam break flow

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International Journal of Sediment Research 2021年第2期36卷 229-234页

作者： Khabat Khosravi Amir hooshang Nezamivand Chegini James Cooper Luca Mao Mahmood Habibnejad Kaka Shahedi Andrew Binns Department of Civil Engineering University of Guilan Department of Watershed Management Engineering Sari Agricultural Science and Natural Resources University School of the Built Environment Heriot-Watt University Edinburgh Campus Department of Geography and Planning School of Environmental Sciences University of Liverpool School of Geography University of Lincoln School of Engineering University of Guelph

Dam break flows and resulting river bed erosion can have disastrous impacts on human safety, infrastructure, and environmental quality. However, there is a lack of research on the mobility of non-uniform sediment mixtures resulting from dam break flows and how these differ from uniform sized sediment. In this paper, laboratory flume experiments revealed that coarse and fine fractions in non-uniform sediment had a higher and a lower bed-load parameter, respectively, than uniform sediments of the same size. Thus, the finer fractions were more stable and the coarser fractions were more erodible in a nonuniform bed compared to a uniform-grained bed. These differences can be explained by the hiding and protrusion of these fractions, respectively. By investigating changes in mobility of the mixed-size fractions with reservoir water levels, the results revealed that at low water levels, when the coarser fractions were only just mobile, the bed-load parameter of the finer fractions was higher than the coarser fractions. The opposite was observed at a higher water level, when a significant proportion of the coarsest fractions was mobilized. The higher protrusion of these grains had an important effect on their mobility relative to the finer grains. The transported sediment on these mixed-sized beds was coarser than the initial bed sediment, and became coarser with an increase in reservoir water level.

关键词： Dam break Bed-load transport Gravel Laboratory flume

Neural and Spinal Modules in Implementation of a Simple Ballistic Movement

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Journal of Software Engineering and Applications 2016年第7期9卷 326-345页

作者： hooshang Hemami Behzad Dariush Department of Electrical and Computer Engineering The Ohio State University Columbus USA Honda Research Institute Mountain View USA

A simple ballistic movement and two of its attributes (namely, reversal in time and synchronization with external events) are formulated. A three-dimensional, three-link musculoskeletal arm is subjected to a fast ballistic type movement. The central components of the movement from hippocampal, cerebellar, basal ganglia and reticular formation structures that may be involved in timing are identified. The role of agonist muscles and spinal reflexes in the execution of ballistic movements (namely, in fast starts and fast stops) is discussed. The needed three time intervals are constructed in real time and can be coordinated with external events. Delaying or advancing in time, synchronization, time scaling and inverting events in time relative to the movement is formulated. Digital computer simulations are presented to test the behavior of the formulated neural and spinal processing and demonstrate the behavior of the arm under such control.

关键词： Arm Model Ballistic Movement Event Timing Neural Modules and Spinal Reflex

AN INVESTIGATION INTO THE EXECUTION OF HUMAN SKILLED MOVEMENTS

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AN INVESTIGATION INTO THE EXECUTION OF HUMAN SKILLED MOVEMEN...

Evaluation of dentists’ awareness about personnel and patients national protection in Yazd dental office

1996 3rd International Conference on Signal Processing(ICSP’96)

作者： Kamran Iqbal hooshang Hemami Faculty of Electronic Engineering GIK InstituteTopi-Swabi 23460.N.W.F.P.Pakistan Department of Electrical Engineering The Ohio State University.Columbus.Ohio 43210USA

＜正＞This research is aimed at improving understanding of the execution of human skilled movements in the saggital *** this aim a model-based approach that consists of the follow ing steps is adopted:a) a physiologically-motivated model of the lower extremity is developed;b) a neurophysiological controller with neural activation and intrinsic / peripheral feedback is designed;c) an optimization algorithm involving muscle-joint stiffness matrix is proposed and used to compute neural firing rates for the execution of movement,d) the movement is performed in the laboratory and the results are compared with those obtained from the *** maneuver performed in the sagittal plane is used as an example of skilled movement.

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Health 2012年第8期4卷 490-492页

作者： Maryam Zangoie Booshehri Fatemeh Ezoddini-Ardakani hooshang Nozari Department of Oral and Maxillofacial radiology Faculty of Dentistry Shahid Sadoughi University of Medical Sciences Yazd Iran Shahid Sadoughi University of Medical Sciences Yazd Iran

Background: Dental radiology had helpful assistant in the diagnosis and treatment of oral diseases. Dentists in their practice have to access benefits of dental oral radiographs against its hazards. They must aware from new radiation protection techniques and radiation dosage which daily receive. Present study was performed for radiation protection awareness in dentists of Yazd city and their knowledge about recent lowering radiation techniques. Materials & Methods: Present cross sectional study was performed on 102 medical dentists of Yazd city. Our study samples were participated in one Continues Medical Educations (CME) session. Knowledge assessment of study medical dentists was gathered with questionnaire which was given to study participants during CME session. Results: Eighty nine percent of dentists had poor and 11% had moderate awareness about radiation protection techniques. There was no significant difference between mean of knowledge scores among study participants according their age groups, job experiences and genders. Conclusion: The knowledge of dentists about radiation protection techniques was very poor and they should implement recent and appropriate radiation protection techniques and guidelines.

关键词： radiation Protection Dental radiography Knowledge Dentists

The Modification of Poly amidoamine (PAMAM-G0.5) by Cytosine

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Engineering（科研） 2012年第10期4卷 103-105页

作者： Omid Louie Abdolhossien Massoudi hooshang Vahedi Hajar Asadi Sami Sajjadifar Chemistry Department Payame Noor University Mashhad Iran

The half generation Poly(amidoamine) (PAMAM) dendrimers was synthesized and characterized and modification by heterocyclic DNA base (Cytosine) . The conjugated Cytosine? modified detected by FT-IR, 1H NMR, 13C NMR and... 详细信息

关键词： Component Polyamidoamine PAMAM Cytosine

Geology of the Aftabrou Polymetallic Deposit, Saveh, Iran

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Open Journal of Geology 2017年第7期7卷 978-999页

作者： Akram Sabzian Fariborz Masoudi hooshang Asadi-Harooni Mohammad-Hashem Emami Nima Nezafati Department of Geology Science and Research Branch Islamic Azad University (IAU) Teheran Iran Faculty of Earth Sciences Shahid Beheshti University Evin Tehran Iran Department of Mining Engineering Isfahan University of Technology Isfahan Iran Department of Geology Islamshahr Branch Islamic Azad University Teheran Iran

Aftabrou polymetallic prospect is located at the contact of Oligo-Miocene calcalkaline granodioritic to dioritic and Eocene andesitic to basaltic volcanic complex in middle section of Urumiyeh-Dokhtar volcanic arc in NW of Saveh city. Petrographic study indicated that the volcanic rocks are mostly: lava and tuff. Composition of lavas is mainly andesite and tuffs are mainly composed of dacite to rhyodacite. Major phenocrysts in these rocks are plagioclase, clinopyroxene, hornblende and opac minerals. Petrographic and geochemical studies indicated an I-type granitoid and, calcalkaline magmatism associated with continental margin of subduction zone. This study determined three mineralization subzones of 0.2% - 5.3% Cu, 0.02 - 1.31 ppm Au and 1.2% - 3.9% Zn. Fluid inclusion studies on quartzic veins associated with magmatism, demonstrated that homogenization temperatures of this mineralization fluid are between 170°C to 330°C, the salinity of the system is between 11.7 to 23.5 weight percent, density of this fluid is 0.8 - 1.1 g/cm3 and is occurred in depth of less than 1800 m of surface. Fluid inclusion studies suggested that formation of mineral deposit is simple cooling and mixing with atmospheric water and type of Aftabrou deposit is IOCG. In this base, it is assumed that this IOCG mineralization is occurred associate with magmatism that is formed as a result of Neo-Tethys oceanic subduction beneath the Central Iran zone which is replaced in the Orumieh-Dokhtar magmatic arc.

关键词： Aftabrou Polymetallic Mineralization Calcalkaline Fluid Inclusion IOCG Deposit