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Statistical Features and Traditional SA-SVM Classification Algorithm for Crack Detection

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Journal of Signal and Information Processing 2018年第2期9卷 111-121页

作者： Azadeh Noori Hoshyar Sergey Kharkovsky bijan Samali Centre of Infrastructure Engineering Western Sydney University Sydney Australia

In recent years, the interest in damage identification of structural components through innovative techniques has grown significantly. Damage identification has always been a crucial concern in quality assessment and load capacity rating of infrastructure. In this regard, researchers focus on proposing efficient tools to identify the damages in early stages to prevent the sudden failure in structural components, ensuring the public safety and reducing the asset management costs. The sensing technologies along with the data analysis through various techniques and machine learning approaches have been the area of interest for these innovative techniques. The purpose of this research is to develop a robust method for automatic condition assessment of real-life concrete structures for the detection of relatively small cracks at early stages. A damage identification algorithm is proposed using the hybrid approaches to analyze the sensors data. The data obtained from transducers mounted on concrete beams under static loading in laboratory. These data are used as the input parameters. The method relies only on the measured time responses. After filtering and normalization of the data, the damage sensitive statistical features are extracted from the signals and used as the inputs of Self-Advising Support Vector Machine (SA-SVM) for the classification purpose in civil Engineering area. Finally, the results are compared with traditional methods to investigate the feasibility of the hybrid proposed algorithm. It is demonstrated that the presented method can reliably detect the crack in the structure and thereby enable the real-time infrastructure health monitoring.

关键词： Signal Processing Machine Learning Statistical Features Feature Extraction Classification Crack Detection

Mass as the Fifth Dimension of the Universe

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International Journal of Astronomy and Astrophysics 2013年第3期3卷 257-259页

作者： bijan Nikouravan Jitendra J. Rawal Department of Physics Islamic Azad University (IAU)-Varamin-Pishva Branch Tehran Iran Department of Physics University Malaya (UM) Kuala Lumpur Malaysia

Newton considered three-dimensional universe endowed with flat space Euclidean geometry, and treated the time as an outside parameter and established his dynamics of the universe. Einstein along with space, considered time, and generated a four-dimensional universe endowed with non-Euclidean curved space-time geometry with time as its fourth dimension, and set up his field equations. Schwarzschild solved Einstein’s field equations around a star in space, which is, otherwise, flat, and obtained a solution. We, along with space and time, considered mass which also included energy according to Einstein’s mass-energy equivalence relation: E = mc2, and generated a five-dimensional universe with the mass as its fifth dimension, and solved the Einstein’s field equations, in some simple cases, and obtained solutions around a star in space, which is otherwise, flat.

关键词： Mass 5D Universe Einstein’s Field Equations

悬浮固化液相微萃取-高效液相色谱法测定人血浆和尿样中的卡巴咪嗪（英文）

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色谱 2015年第6期33卷 634-641页

作者： Mohammad ASADI Ali Mohammad HAJI SHABANI Shayessteh DADFARNIA bijan ABBASI Department of Chemistry Faculty of ScienceYazd University Khorassan Research Institute for Food Science and Technology

Solidified floating organic drop microextraction(SFODME)in combination with high performance liquid chromatography was used for separation/preconcentration and determination of carbamazepine(CBZ)in human plasma and urine *** that affect the extraction efficiency such as the type and volume of extraction solvent,ionic strength,sodium hydroxide concentration,stirring rate,sample volume and extraction time,were investigated and *** the optimum conditions(extraction solvent,40μL of 1-undecanol;sodium hydroxide concentration,1 mol/L;temperature,50℃;stirring speed,400 r/min;sample volume,8 mL;sodium chloride concentration,3%(w/v)and extraction time,60 min)the calibration curve was found to be linear in the mass concentration range of 0.4-700.0μg/*** limit of detection(LOD)was 0.1μg/L and the relative standard deviation(RSD)for six replicate extraction and determination of carbamazepine at 100μg/L level was found to be 4.1%.The method was successfully applied to the determination of CBZ in human plasma and urine samples.

关键词： solidified floating organic drop microextraction(SFODME) high performance liquid chromatogra-phy(HPLC) carbamazepine(CBZ) plasma urine preconcentration

Radiologic-histological correlation of hepatocellular carcinoma treated via pre-liver transplant locoregional therapies

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Hepatobiliary & Pancreatic Diseases International 2013年第1期12卷 34-41页

作者： Galal El-Gazzaz Achuthan Sourianarayanane KV Narayanan Menon Juan Sanabria Koji Hashimoto Cristiano Quintini Dympna Kelly bijan Eghtesad Charles Miller John Fung Federico Aucejo Hepatobiliary & Liver Transplant Surgery Cleveland Clinic Foundation

BACKGROUND:Locoregional therapies(LRTs) are treatments to achieve local control of hepatocellular carcinoma(HCC).Correlation between radiologic response to LRT and degree of induced tumor necrosis is not well *** aim of this study was to evaluate different levels of radiologic response after pre-liver transplant(LT) LRT and its correlation with percentage of tumor necrosis on explanted ***:Institutional Review Board approved LT database was queried for treated HCC in patients undergoing *** response was evaluated to predict tumor necrosis in the explanted *** response was evaluated 1 to 3 months after LRT with computed tomography or MRI via Response Evaluation Criteria in Solid Tumors(RECIST),and European Association for the Study of the Liver(EASL) *** was repeated as needed until time of *** tumor necrosis was graded as complete(100%),partial(50%-99%),or poor(<50%).RESULTS:Between 2002 and 2011,128 patients(97 men and 31 women) received pre-LT LRT including transarterial therapy(93),radiofrequency ablation(20),or combination of both(15).The mean age of the patients was 58±9 *** mean follow-up was 35±27 *** median waitlist time was 55 *** hundred(78%) patients had HCC within the Milan criteria at the initial radiologic ***(15%) of the patients had complete tumor necrosis on histopathology ***(39%) of the patients exhibited partial necrosis,52(41%) showed poor or no necrosis and 7(5%) showed progressive *** overall pre-LT radiologic staging was correlated with explant pathology in 73(57%) of the *** tumor stage was noted in 49(38%) patients,and overestimated tumor stage in 6(5%) *** post-LT 3-year overall survival and disease free survival were 82% and 80%,and the rates for complete and partial tumor necrosis were 100% vs 78%(P=0.02) and 100% vs 75%(P=0.03),***:In the current era,interpretat

关键词： locoregional therapy radiologic response hepatocellular carcinoma

Sedimentology and depositional environment of the Kazhdumi Formation Sandstones in the northwestern area of the Persian Gulf

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Open Journal of Geology 2016年第11期6卷 1401-1422页

作者： bijan Noori Nader Kohansal Ghadimvand Bahram Movahed Mohammadreza Yousefpour North Tehran Branch Islamic Azad University Tehran Iran Iranian Offshore Oil Company Tehran Iran

Kazhdumi is one of the Bangestan Group formations aging late early Cretaceous (Albian). Three subsurface sections of the sandstone bearing part of Kazhdumi in the studied area located at northwest of the Persian Gulf are assessed for determining sedimentary facies and depositional environment. Based on the recognized facies, the sandstone bearing zones of Kazhdumi and their relevant paleoenvironments can be addressed as: first one is the B sandstone zone containing thick sandstone layers alternating with shale and siltstone thin layers which are deposited by river influenced conditions because of the characteristics like: cross bedding, oxidized constituents and palesol. The second one, the A sandstone zone which is deposited under a key limestone layer, is composed of sand/sandstone layers with marine features and presents the interaction of marine-river condition in deltaic channels. This zone, is a transition interval showing the changes of river-dominated condition to marine one. The third one is the A sandstone zone deposited above the key limestone layer containing fine grained laminated siliciclastic and chemical sediments. Alternation of distal channel facies and green marine shale of delta containing glauconite, pyrite and organic matter residuals, all confirm the reduction condition in estuarine environment. Applying facies analyses results, isopach maps, porosity distribution maps and sandstone grain size study, the paleocurrent pattern is determined from the southwest to northeast.

关键词： Kazhdumi Formation Sedimentary Facies Paleoenvironment Paleocurrent Persian Gulf

Provenance and Tectonic Setting of Late Lower Cretaceous (Albian) Kazhdumi Formation Sandstones (SW Iran)

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Open Journal of Geology 2016年第8期6卷 721-739页

作者： bijan Noori Nader Kohansal Ghadimvand Bahram Movahed Mohammadreza Yousefpour North Tehran Branch Islamic Azad University Tehran Iran Iranian Offshore Oil Company Tehran Iran

Provenance and tectonic setting of the Late Lower Cretaceous (Albian) sandstones in SW Iran have been interpreted on the basis of geochemistry (major and trace elements) of 35 samples from Iranian offshore oil fields (Soroosh, Nowrooz, Foroozan and Hendijan). Geochemically, trace-element concentrations, such as La, Th, Sc and Zr, and ratios, such as La/Sc, Th/Sc, La/Co, and Th/Co, of sandstones from Kazhdumi Formation at four localities indicate that they were derived from felsic source rocks and deposited in a passive continental margin. Most major and trace element contents of Kazhdumi sandstones are generally similar to upper continental crust (UCC) values. However, some samples are depleted in major and trace elements (such as K2O, Na2O, Sr and Ba) relative to UCC, which is mainly due to absence or smaller amount of Na-rich plagioclase and K-feldspar and also paucity of clay minerals, which is possibly due to intense weathering and recycling. Enrichments in Zr, negative Sr anomalies and Th/U ratios higher than 4 for Kazhdumi sandstones are further evidence for recycled sources. The study of paleoweathering conditions based on chemical index of weathering (CIW) indicates a moderate to intense weathering of first cycle sediments, or it may alternatively reflect recycling under semi-arid to semi-humid climate conditions in Kazhdumi sandstones. The results of this study suggest that the main source for the Kazhdumi sandstones is likely located in uplifted shoulders of a rifted basin (Neo-Tethys) in its post-rift stage (Arabian basement).

关键词： Provenance Geochemistry Tectonic Setting Albian Kazhdumi Formation Burgan SW Iran

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轻而易举的富足

Ohio solid organ transplantation consortium criteria for liver transplantation in patients with alcoholic liver disease

作者： (美)彼尚·安裘密(bijan Anjomi)

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World Journal of Hepatology 2016年第27期8卷 1149-1154页

作者： Kaveh Hajifathalian Annette Humberson Mohamad A Hanouneh David S Barnes Zubin Arora Nizar N Zein bijan Eghtesad Dympna Kelly Ibrahim A Hanouneh Department of Internal Medicine Cleveland Clinic Foundation Department of Transplant Social Work Cleveland Clinic Foundation Department of Gastroenterology and Hepatology Cleveland Clinic Foundation Department of General Surgery Cleveland Clinic Foundation

AIM To evaluate risk of recidivism on a case-by-case *** From our center's liver transplant program,we selected patients with alcoholic liver disease who were listed for transplant based on Ohio Solid Organ Transplantation Consortium(OSOTC) exception *** were considered to have either a low or medium risk of recidivism,and had at least one or three or more months of abstinence,*** were matched based on gender,age,and Model for End-Stage Liver Disease(MELD) score to controls with alcohol-induced cirrhosis from Organ Procurement and Transplant Network *** Thirty six patients with alcoholic liver disease were approved for listing based on OSOTC exception criteria and were matched to 72 *** patients(53%) with a median [Inter-quartile range(IQR)] MELD score of 24(13) received transplant and were followed for a median of 3.4 *** were matched to 38 controls with a median(IQR) MELD score of 25(9).At one and five years,cumulative survival rates(± standard error) were 90% ± 7% and 92% ± 5% and 73% ± 12% and 77% ± 8% in patients and controls,respectively(Log-rank test,P = 0.837).Four(21%) patients resumed drinking by last follow-up *** Compared to traditional criteria for assessment of risk of recidivism,a careful selection process with more flexibility to evaluate eligibility on a case-by-case basis can lead to similar survival rates after transplantation.

关键词： Alcohol-induced disorders Alcoholic liver cirrhosis Mortality Survival Liver transplantation

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超模的同构定理

数学学报（中文版） 2007年第4期50卷 909-914页

作者：詹建明 bijan DAVVAZ K.P.SHUM 湖北民族学院数学系恩施445000 Department of Mathematics Yazd UniversityYazdIran Faculty of Science The Chinese University of Hong KongHongKongP.R.China

本文利用模论导出超模的三个同构定理,同时,给出超模的Jordan-Holder定理,最后,探讨了超模的基本关系∈^＊,并研究其性质．

关键词：超模 (正规)子超模强同态