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An Efficient Hybrid Model Based on Modified Whale Optimization Algorithm and Multilayer Perceptron Neural Network for Medical Classification Problems

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Journal of Bionic Engineering 2022年第5期19卷 1504-1521页

作者： Saeid Raziani Sajad Ahmadian Seyed Mohammad Jafar jalali Abdolah Chalechale Department of Computer Engineering Razi UniversityKermanshah ***Iran Faculty of Information Technology Kermanshah University of TechnologyKermanshah ***Iran Institute for Intelligent Systems Research and Innovation(IISRI) Deakin UniversityWaurn PondsMelbourne 3217Australia

Feedforward Neural Network(FNN)is one of the most popular neural network models that is utilized to solve a wide range of nonlinear and complex *** models such as stochastic gradient descent have been developed to train ***,they mainly suffer from falling into local optima leading to reduce the accuracy of ***,the convergence speed of training process depends on the initial values of weights and biases in ***,these values are randomly determined by most of the training *** deal with these issues,in this paper,we develop a novel evolutionary algorithm by modifying the original version of Whale Optimization Algorithm(WOA).To this end,a nonlinear function is introduced to improve the exploration and exploitation phases in the search process of ***,the modified WOA is applied to automatically obtain the initial values of weights and biases in FNN leading to reduce the probability of falling into local *** addition,the FNN model trained by the modified WOA is used to develop a classification approach for medical diagnosis *** medical diagnosis datasets are utilized to evaluate the efficiency of the proposed ***,four evaluation metrics including accuracy,AUC,specificity,and sensitivity are used in the experiments to compare the performance of classification *** experimental results demonstrate that the proposed method is better than other competing classification models due to achieving higher values of accuracy,AUC,specificity,and sensitivity metrics for the used datasets.

关键词： Feed forward neural network Meta-heuristic algorithm Whale optimization algorithm Optimization Classification Bionic algorithm

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Warped time lens in temporal imaging for optical real-time data compression

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Chinese Science Bulletin 2014年第22期59卷 2649-2654页

作者： Mohammad H.Asghari Bahram jalali Department of Electrical Engineering University of California Los Angeles CA 90095 USA Department of Bioengineering University of CaliforniaLos Angeles CA 90095 USA Department of Surgery David Geffen School of MedicineUniversity of California Los Angeles CA 90095 USA

We introduce for the first time the concept of anamorphic temporal imaging and its application to analog data compression in a time *** in front of a conventional spectrometer,this technique enhances the spectral resolution and the update *** importantly,it performs real-time optical data compression to reduce the volume of the generated digital *** technique introduces the concept of the warped time *** show that a specific class of warped time-to-frequency mapping operations combined with the nonlinear operation inherent in a photo-detector compresses the time-bandwidth product in a temporal imaging *** employ our newly introduced Stretched Modulation Distribution to design the warp *** this method,the narrow spectral features beyond the spectrometer resolution can be captured and at the same time the output bandwidth and hence the record length is *** reduction in the record length results in higher update rate for the spectrometer without sacrificing the spectral resolution or *** method also benefits from amplitude and phase detection to recover the input complex-field *** compressing the time-bandwidth product,anamorphictemporal imaging addresses the Big Data problem in such high-throughput instruments.

关键词：数据压缩成像系统扭曲实时光学光谱分辨率时间带宽积变形时间

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Downed logs improve soil properties in old-growth temperate forests of northern Iran

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Pedosphere 2020年第3期30卷 378-389页

作者： Negar MOGHIMIAN Seyed Gholamali jalali Yahya KOOCH Ana REY Faculty of Natural Resources&Marine Sciences Tarbiat Modares UniversityNoor 46417-76489Iran Department of Biogeography and Global Change National Museum of Natural History(MNCN)Spanish Scientific Council(CSIC)C/Serrano 115bisMadrid 28006(Spain

Dead trees, particularly downed logs, play an important role in the dynamics of forest ecosystem. Contribution of decaying wood to C and nutrient pools of forest soils depends on the tree species and degree of wood decay. However, the extent to which the downed logs affect the soil properties of temperate forests has rarely been evaluated. In this study, a mixed beech forest was selected in Liresar region of Mazandaran Province, northern Iran, to investigate if and how the presence of downed logs affected soil quality and function by comparing soils underneath degraded logs and nearby soils of the two dominant tree species(beech and hornbeam). We then explored how these effects occurred as downed logs decomposed by comparing the woods of both tree species at four degrees of decomposition. Degree of decay of downed logs was classified into four classes(DC1–DC4). Eight dead trees of each tree species were selected at the center of each sample plot. Three composite soil samples underneath each decaying log and 100 cm away from a decaying log were collected at two soil depths(0–15 and 15–30 cm) to analyze soil main physicochemical properties and microbial activity. The results revealed that downed logs affected soil physical(5% wetter than control soils), chemical(2% lower pH, 100% increase in organic C and total N in the case of hornbeam, and 2% increase in P), and biological characteristics(soil microbial respiration enhanced by 10%, and microbial biomass C 620 and 351.5 mg kg-1 and microbial biomass N 66.47 and 32.18 mg kg-1, respectively, in the cases of beech and hornbeam), thus resulting in significantly different soil microsites from those without downed logs. Presence of downed logs increased soil microbial activity and soil fertility as wood decayed. Thus, the presence of downed logs is an important factor influencing forest soils and should be taken into consideration in forest management practices.

关键词： beech course woody debris dead tree decay degree hornbeam soil microbial activity soil physicochemical properties

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Effects of Common Ions on Zn Sorption in Some Calcareous Soils of Western Iran

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Pedosphere 2012年第2期22卷 190-200页

作者： M.jalali N.AHMADI MOHAMMAD ZINLI Department of Soil Science College of AgricultureBu-Ali Sina University

Zinc （Zn） is essential to plant growth and relatively mobile in soils. This study was conducted to assess the effect of common ions （Ca2＋, K＋, Na＋, NH＋, CI-, NO3-, and H2PO4） on sorption of Zn in surface samples of ten calcareous soils from western Iran using 10 mmol L-1 KC1, KNO3, KH2P04, Ca（N03）2, NAN03, and NH4N03 solutions as background electrolytes. The results indicated that both NH＋, K＋, and Ca2＋ equally decreased Zn sorption as compared to Na＋. Zinc sorption was decreased by H2PO4- as compared to NO3 and Cl-. The Langmuir and Freundlich equations fitted closely to the sorption data of all ions. The Langmuir maximum, bonding energy constant, and Freundlich distribution coefficient for Zn sorption differed among the various ionic background electrolytes. Langmuir sorption parameters showed that the presence of H2PO4- decreased the maximum Zn adsorbed, but increased the bonding energy. Although K＋ and NH＋ equally influenced maximum Zn adsorbed, they differed in their effect on the distribution coefficient of Zn in soils. Values of saturation index calculated using Visual MINTEQ indicated that at the low Zn concentration, Zn solubility was controlled by sorption reactions and at the high Zn concentration, it was mainly controlled by sorption and mineral precipitation reactions, such as precipitation of Zn3（PO4）2.4H2O, Zn5（OH）6（CO3）2, and ZnCO3. For most ionic background electrolytes, soil pH, CaC03, and cation exchange capacity （CEC） were significantly correlated with sorption parameters.

关键词： background electrolytes distribution coefficient mineral precipitation saturation index Zn solubility

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Psychological problems as the major cause of fatigue in clients undergoing hemodialysis: A qualitative study

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International Journal of Nursing Sciences 2018年第3期5卷 262-267页

作者： Zahra Rezaei Amir jalali Rostam jalali Behnam Khaledi-Paveh Student Research Committee School of Nursing and MidwiferyKermanshah University of medical sciencesKermanshahIran Psychiatric Nursing Department School of Nursing and MidwiferyKermanshah University of Medical SciencesKermanshahIran Nursing Department School of Nursing and MidwiferyKermanshah University of Medical SciencesKermanshahIran

Background:It is obvious that hemodialysis is a stressful process,leading to numerous social and psychological problems,and may cause fatigue and ***:This study aimed to explain the experiences of hemodialysis clients regarding the effect of psychological problems on ***:This article was extracted from a qualitative study conducted on clients undergoing hemodialysis in *** this end,a total of 15 participants were purposefully selected using the snowball sampling method and the required data was collected using individual,face to face,detailed and semi-structured *** were 12 client interviewees and one doctor,one nurse and one hemodialysis client's *** analysis was used to analyze the ***:Continuous analysis of data and documents obtained from the interviews on the hemodialysis clients'experiences and comments regarding the main causes of fatigue revealed two main categories:1)Psychological effects with subcategories of psychological stress and exhaustion;2)Needs and constraints with subcategories of individual and social needs and ***:According to the clients'speech and expression analysis,psychological impacts and disease-induced needs and constraints were the most important cause of fatigue and its continuation among these clients.

关键词： Fatigue Hemodialysis Patients Pressure Qualitative research

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Hepatoprotective and cytoprotective properties of Hyptis suaveolens against oxidative stress-induced damage by CCl_4 and H_2O_2

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Asian Pacific Journal of Tropical Medicine 2012年第11期5卷 868-874页

作者： Hadi Ghaffari Behrouz jalali Ghassam HS Prakash Department of Studies in Biotechnology University of MysoreManasagangotriMysore570006KarnatakaIndia

Objective:To investigate capacity of Hyptis suaveolens(***) methanol extract as an antioxidant to protect against carbon tetrachloride(CCl_4)-indueed oxidative stress,hepatotoxicitv in Albino Wistar rats and cytoprotective effect of hydrogen peroxide(H_2O_2) induced cell death in HepG_2 cell ***:Two different doses of methanol extract of *** were evaluated for the hepatoprotective activity against carbon tetrachloride(CCl_4) induced hepatotoxicitv in *** in GroupⅠ:served as control,groupⅡ:***(100 mL/ kg b.w),groupⅢ:***(50 mL/kg b.w) + CCl_4(1 mg/kg),groupⅣ:***(100 mL/kg b.w) + CCl_4(1 ml/kg)and groupⅤ:CCl_4(1 mL/kg).Histopathologic changes of liver were also *** was also determined by 3,(4,5-dimethylthiazol-2-yl)2,5-diphenyl-tetrazolium bromide(MTT) ***:Oral sigle dose treatment of CCl_4 produced a marked elevation in the serum levels of aspartate transaminase(AST),alanine transaminase(ALT), alkaline phosphatase(ALP) and Lactate dehydrogenase(LDH).Histopathological analysis of the liver of CCl_4-induced rats revealed marked liver cell necrosis with inflammatory collections that were conformed to increase in the levels of SOD,GSH,GST,GR and *** with H_2O_2 significantly induced death of HepG_2 *** with *** methanol extract inhibited or attenuated H_2O_2 induced ***:This study shows that *** methanol extract can be proposed to protect the liver against CCl_4-induced oxidative damage in rats and protect the cells against H_2O_2-induced oxidative damage in HepG_2 *** hepatoprotective and cytoprotective effects might be correlated with its antioxidant and free radical scavenger effects.

关键词： Hyptis suaveolens Antioxidant enzymes Lipid peroxidation HepG_2 cell line Hydrogen peroxide MTT assay

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Solubility and thermodynamics of lamotrigine in ternary mixtures of ionic liquids([OMIm][Br]+[HMIm][Br]+water)at different temperatures

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Chinese Journal of Chemical Engineering 2020年第1期28卷 198-207页

作者： Mohammad Barzegar-jalali Abolghasem Jouyban Fleming Martinez Hemayat Shekaari Seyyedeh Narjes Mirheydari Research Center for Pharmaceutical Nanotechnology and Faculty of Pharmacy Tabriz University of Medical SciencesTabrizIran Pharmaceutical Analysis Research Center and Faculty of Pharmacy Tabriz University of Medical SciencesTabrizIran Kimia Idea Pardaz Azarbayjan(KIPA)Science-Based Company Tabriz University of Medical SciencesTabrizIran Grupo de Investigaciones Farmacéutico-Fisicoquímicas Departamento de FarmaciaFacultad de CienciasUniversidad Nacional de Colombia–Sede BogotáCra.30 No.45-03BogotáD.C.Colombia Department of Physical Chemistry Faculty of ChemistryUniversity of TabrizTabrizIran Drug Applied Research Center Tabriz University of Medical SciencesTabrizIran

Experimental mole fraction solubility of lamotrigine(LTG)in ternary aqueous mixtures of two ionic liquids(ILs),1-hexyl and 1-octyl-3-methylimidazolium bromide,[HMIm][Br]and[OMIm][Br]were reported at several temperatures T=(293.15 to 313.15)*** van’t Hoff and(Jouyban-Acree-van’t Hoff,E-Jouyban-Acree-van’t Hoff,e-NRTL,UNIQUAC and Wilson)models were used to correlate the solubility *** comparison of the models with temperature and solvent composition dependencies shows that the Wilson model has the minimum ARD which are relatively close to those obtained from Jouyban-Acree-van’t Hoff and E-Jouyban-Acree-van’t Hoff models and maximum ARD belonged to the UNIQUAC *** order of ARDs for these models is:Wilson b Jouyban-Acree-van’t Hoff,E-Jouyban-Acree-van’t Hoff b e-NRTL b ***,the apparent thermodynamic functions,Gibbs free energy,enthalpy and entropy of dissolution and mixing were calculated based on the van’t Hoff and Gibbs free energy *** strong LTG-ILs interactions and enthalpic contribution of the dissolution process resulted from the calculated thermodynamic functions.

关键词： Solubility Lamotrigine [OMIm][Br] [HMIm][Br] UNIQUAC Thermodynamic functions

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Experimental evaluation of mechanically stabilized earth walls with recycled crumb rubbers

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Journal of Rock Mechanics and Geotechnical Engineering 2018年第5期10卷 947-957页

作者： Matin jalali Moghadam Amirali Zad Nima Mehrannia Nader Dastaran Department of Geotechnical Engineering Islamic Azad UniversityCentral Tehran Branch

Traditional techniques for treatment of waste rubber, such as burning, generate some highly non- degradable synthetic materials that cause unrepairable environmental damages by releasing heavy metals, such as arsenic, chromium, lead, manganese and nickel. For this, scrap tires are used as light- weight alternative materials in many engineering applications, such as retaining wall backfilling. In the present study, 90 laboratory models were prepared to evaluate the stability of mechanically stabilized earth （MSE） walls with plate anchors. Then, the bearing capacity and horizontal displacements of the retaining walls were monitored by exerting a static loading to investigate the effects of adding different contents （5 wt%, 10 wt%, 15 wt% and 20 wt%） of recycled crumb rubber （RCR） to the fill of a mechanically stabilized retaining wall with plate anchors. To visualize the critical slip surface of the wall, the particle image velocimetry （PIV） technique was employed. Results showed that the circular anchor plates almost continually provided a higher bearing capacity and wall stability than the square plates. Moreover, the backfill with 15 wt% RCR provided the maximum bearing capacity of the wall. Increasing the weight percentage of RCR to 20 wt% resulted in a significant reduction in horizontal displacement of the wall, which occurred due to the decrease in lateral earth pressure against the whole walls. An increase in RCR content resulted in the decrease in the formation of failure wedge and the expansion of the wall slip surface, and the failure wedge did not form in the sand mixtures with 15 wt% and 20 wt% RCRs.

关键词： Mechanically stabilized earth (MSE) wall Plate anchor Recycled crumb rubber (RCR) Particle image velocimetry (PIV)

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A survey of biochemical and acute phase proteins changes in sheep experimentally infected with Anaplasma ovis

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Asian Pacific Journal of Tropical Biomedicine 2018年第12期8卷 565-570页

作者： Zohreh Khaki Seyedeh Parastoo Yasini Seyedeh Missagh jalali Department of Clinical Pathology Faculty of Veterinary MedicineUniversity of Tehran Department of Clinical Sciences Faculty of Veterinary MedicineIslamic Azad University Department of Clinical Sciences Faculty of Veterinary MedicineShahid Chamran University of Ahvaz

Objective: To determine the biochemical and acute phase proteins changes in sheep experimentally infected with Anaplasma ovis(A. ovis). Methods: One Iranian sheep naturally infected with A. ovis(parasitemia 0.02%) but with no other blood parasites based on blood smear and polymerase chain reaction methods was selected as donor, and it was splenectomized to induce high level of parasitemia. Then, three weeks after splenectomy when parasitemia was 6%, donor's blood was intravenously administered to each recipient animal. Five 5-6 months old Iranian male sheep without any blood parasites were selected as recipient animals. The percent of parasites, packed cell volume, serum biochemical parameters(urea, creatinine, bilirubin, aspartate aminotransferase activity, cholesterol, total protein, albumin, globulin, Fe), acute phase proteins(haptoglobin, total iron binding capacity, fibrinogen), were evaluated in sheep before and after being experimentally infected with A. ovis(until day 38). In addition, body weights of sheep were measured on days 0, 20 and 38. Results: In recipient sheep, microscopic examination of erythrocytes revealed a significant rise of parasitemia on days 12 and 15. The lowest level of packed cell volume in sheep was seen on day 15 post infection. A significant rise existed in mean urea and bilirubin(total, direct and indirect) on days 15 and 20. The increase of indirect bilirubin level was higher than direct bilirubin. Furthermore, serum Fe significantly increased on days 20 and 23. The mean total protein concentration significantly increased on day 38. A significant increase was found in the serum globulin concentration from days 20 and 27 to 38. Maximum values of haptoglobin were observed on days 27 and 30. Moreover, aspartate aminotransferase activity(from days 20-30) and cholesterol concentration(on day 20) significantly decreased. However, no significant changes were found in other parameters. Conclusions: Experimental ovine anaplasmosis caused by

关键词： Anaplasma ovis Acute phase protein Sheep Biochemical Iran

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VEViD:Vision Enhancement via Virtual diffraction and coherent Detection

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eLight 2022年第1期2卷 301-316页

作者： Bahram jalali Callen MacPhee Electrical and Computer Engineering Department UCLALos AngelesUSA

The history of computing started with analog computers consisting of physical devices performing specialized functions such as predicting the position of astronomical bodies and the trajectory of cannon *** modern times,this idea has been extended,for example,to ultrafast nonlinear optics serving as a surrogate analog computer to probe the behavior of complex phenomena such as rogue *** we discuss a new paradigm where physical phenomena coded as an algorithm perform computational imaging ***,diffraction followed by coherent detection becomes an image enhancement *** Enhancement via Virtual diffraction and coherent Detection(VEViD)reimagines a digital image as a spatially varying metaphoric“lightfield”and then subjects the field to the physical processes akin to diffraction and coherent *** term“Virtual”captures the deviation from the physical *** light field is pixelated and the propagation imparts a phase with dependence on frequency which is different from the monotonically-increasing behavior of physical *** frequencies exist in three bands corresponding to the RGB color channels of a digital *** phase of the output,not the intensity,represents the output *** is a high-performance low-light-level and color enhancement tool that emerges from this *** algorithm is extremely fast,interpretable,and reduces to a compact and intuitively-appealing mathematical *** demonstrate image enhancement of 4k video at over 200 frames per second and show the utility of this physical algorithm in improving the accuracy of object detection in low-light conditions by neural *** application of VEViD to color enhancement is also demonstrated.

关键词： Physics-inspired computer vision Natural algorithms Low-light image enhancement Color enhancement

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