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Sensor Fault Detection, Isolation and Reconstruction Using Nonlinear Principal Component Analysis

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International Journal of Automation and computing 2007年第2期4卷 149-155页

作者： Mohamed-Faouzi Harkat salah Djelel Noureddine Doghmane Mohamed Benouaret Departement d'Elecronique Faculté des Sciences de l'IngénieurUniversité Badji Mokhtar-AnnabaBP. 12Annaba 23000Algeria

State reconstruction approach is very useful for sensor fault isolation, reconstruction of faulty measurement and the determination of the number of components retained in the principal components analysis （PCA） model. An extension of this approach based on a Nonlinear PCA （NlPCA） model is described in this paper. The NlPCA model is obtained using five layer neural network. A simulation example is given to show the performances of the proposed approach.

关键词： Fault detection and isolation reconstruction nonlinear PCA (NlPCA) neural networks.

One-pot hydrothermal preparation of hierarchical manganese oxide nanorods for high-performance symmetric supercapacitors

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Journal of Energy Chemistry 2022年第2期31卷 116-126页

作者： Bidhan Pandit Emad S.Goda Mahmoud H.Abu Elella Aafaq ur Rehman Sang Eun Hong Sachin R.Rondiya Pranay Barkataki Shoyebmohamad F.Shaikh Abdullah M.Al-Enizi salah MEl-Bahy Kuk Ro Yoon Department of Materials Science and Engineering and Chemical Engineering Universidad Carlos III de MadridAvenida de la Universidad 3028911 LeganésMadridSpain Organic Nanomaterials lab Department of ChemistryHannam UniversityDaejeon 34054Republic of Korea Fire Protection laboratory National Institute of Standards136Giza 12211Egypt Chemistry Department Faculty of ScienceCairo UniversityGiza 12613Egypt Graduate School of Energy Science and Technology Chungnam National University99 Daehak-roYuseong-guDaejeon 34134Republic of Korea School of Chemistry Cardiff UniversityMain BuildingPark PlaceCardiffCF103AT WalesUnited Kingdom Department of Physics Visvesvaraya National Institute of TechnologySouth Ambazari RoadNagpur-440010MaharashtraIndia Department of Chemistry College of ScienceKing Saud UniversityP.O.Box 2455Riyadh 11451Saudi Arabia Department of Chemistry Turabah University CollegeTaif UniversityP.O.Box 11099Taif 21944Saudi Arabia

An eco-friendly,new,and controllable approach for the preparation of manganese oxide(a-MnO_(2))nanorods has been introduced using hydrothermal reaction for supercapacitor *** in-depth crystal structure analysis ofα-MnO_(2) is analyzed by X-ray Rietveld refinement by using Full Prof program with the help of pseudo-Voigt profile *** developed a-MnO_(2) electrode attains a remarkable capacitance of 577.7 F/g recorded at a current density value of 1 A/g with an excellent cycle life when is used for 10,000 repeated cycles due to the porous nanorod-morphology assisting the ease penetration of electrolyte ions into the electroactive *** diffusive and capacitive contributions of the electrode have been estimated by considering standard numerical packages in *** successfully assembling the aqueous symmetric supercapacitor(SSC)cell by utilizing the as-preparedα-MnO_(2),an excellent capacitance of 163.5 F/g and energy density of 58.1 Wh/kg at the constant current density of 0.5 A/g are obtained with an expanded potential frame of 1.6 ***,the cell has exceptionally withstood up to 10,000 cycles with an ultimate capacitance retention of 94.1%including the ability to light an lED for 18 *** findings recommend the developed a-MnO_(2) electrode to be a highly felicitous electrode for the field of energy storage.

关键词： α-MnO_(2)nanorods Rietveld refinement Symmetrical supercapacitors High energy density

Insecticidal Potential of α-Pinene and β-Caryophyllene against Myzus persicae and Their Impacts on Gene Expression

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Phyton-International Journal of Experimental Botany 2023年第7期92卷 1943-1954页

作者： Talha Ali Chohan Tahir Ali Chohan Muhammad Zahid Mumtaz Muhammad Waqar Alam salah ud Din Iqra Naseer Ayesha Riaz Tayyeba Naseem Areeba Iftikhar Dur ENajaf Ali Mubashir Hassan Hayssam M.Ali Institute of Molecular Biology and Biotechnology(IMBB) The University of LahoreLahore54000Pakistan Institute of Pharmaceutical Sciences University of Veterinary and Animal SciencesLahore54000Pakistan Deparment of Plant Pathology University of OkaraOkara56300Pakistan Deparment of Bioinformatics University of OkaraOkara56300Pakistan Department of Soil Science The Islamia University of BahawalpurBahawalpur63100Pakistan Department of Zoology The Islamia University of BahawalpurBahawalpur(Bahawalnagar Campus)63100Pakistan The Steve and Cindy Rasmussen Institute for Genomic Medicine Nationwide Children’s HospitalColumbusOhio43205USA Department of Botany and Microbiology College of ScienceKing Saud UniversityRiyadh11451Saudi Arabia

Myzus persicae(***)is now considered a threat to agricultural crops due to economic *** synthetic insecticides applied every year against ***,are reported to be unsafe for environment,humans,and beneficial ***,several species of Myzus have been found to develop resistance due to over application of these ***,it is required to find some novel insecticide that would be safe for the environment as well as for *** the current study,two major pure constituentsα-pinene andβ-caryophyllene were evaluated for their insecticidal potential against *** using a fumigant toxicity ***,impact ofα-pinene andβ-caryophyllene on expression of five different genes,e.g.,HSP 60,FPPS I,OSD,TOl and ANT responsible for reproduction,dispersion,and growth of *** has also been *** perform fumigant toxicity assay,five different concentrations(3.5,4,4.5,5 and 6μl l−1)ofα-pinene andβ-caryophyllene were *** concentration(lC)was calculated,and gene expression studies were executed through qRT PCR at lC30 ofα-pinene andβ-*** constituents demonstrated excellent fumigant toxicity effects against *** at all five ***,α-pinene shows significantly better results(98%)as compared toβ-caryophyllene(80%)after 72 h at 6μl l−1 of *** highest upregulation in expression was demonstrated at lC30 dose ofα-pinene in five in three out of five genes understudy(TOl,ANT,and FPPS I).Conversely,two genes HSP 60 and OSD demonstrated downregulation at lC30 dose ofβ-***,our results highlighted the promising insecticidal potential of both compoundsα-pinene andβ-caryophylleneby interfering with the reproduction and development related processes in ***,allowing us to recommend the phytoconstituents under investigation as an ecofriendly alternative to synthetic insecticides.

关键词： Fumigation M.persicae gene expression real time PCR α-pinene β-caryophyllene

Straw return increases crop grain yields and K-use efficiency under a maize-rice cropping system

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The Crop Journal 2021年第1期9卷 168-180页

作者： Yuling Han Wei Ma Baoyuan Zhou Akram salah Mingjian Geng Cougui Cao Ming Zhan Ming Zhao MOA Key laboratory of Crop Physiology Ecology and Cultivation(The Middle Reaches of Yangtze River)College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhan 430070HubeiChina Key laboratory of Crop Physiology and Ecology Ministry of AgricultureInstitute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China College of Resource and Environment Huazhong Agricultural UniversityWuhan 430070HubeiChina

Straw return is an effective way to improve crop grain yield and potassium(K)use efficiency by increasing soil K ***,the effects of straw return on soil K supplying capacity,replacement of K fertilizer,and K-use efficiency under maize(Zea mays l.)–rice(Oryza sativa l.)cropping systems are little studied.A two-year field experiment was conducted to determine the physiological determinants of K-use efficiency under straw return with four K fertilization ***33(straw returned plus 33%of K fertilizer applied)and Sr67(straw returned plus 67%of K fertilizer applied)increased annual crop yields by 1.5%and 3.2%and increased agronomic K-use efficiency by respectively 2.9 and 1.3-fold on average in the two years,compared with the conventional practice S0K100(no straw returned plus normal amounts of K fertilizer applied).The Sr33 and Sr67 treatments resulted in significantly greater equilibrium K concentration ratios(CR0 K)and specifically exchangeable K(KX)values according to quantity/intensity(Q/I)relationship analyses,indicating improvement of the potential soil K supply ***,the Sr67 better maintained the soil exchangeable K level and K *** results suggested that K released from maize and rice straw can replace about half of chemical K fertilizer,depending on the available K content in maize–rice cropping system production.

关键词： Maize-rice system Straw return K fertilizer K-use efficiency Quantity/intensity curve

Essential oils from Elaeoselinum asclepium: Chemical composition, antimicrobial and antioxidant properties

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Asian Pacific Journal of Tropical Biomedicine 2016年第10期6卷 851-857页

作者： Moufida Bouchekrit Hocine laouer Mohamed Hajji Moncef Nasri Serkos Artin Haroutounian salah Akkal laboratory of Natural Biological Resources Valorization Faculty of Sciences University of Setif laboratory of Enzyme Engineering and Microbiology National School of Engineers of Sfax Chemistry laboratory Agricultural University of Athens Valorization of Natural Resources Bioactive Molecules and Biological Analysis Unit Department of Chemistry University of Mentouri Constantine1

Objective: To evaluate the chemical composition of the essential oil isolated from Elaeoselinum asclepium(l.) Bertol.(E. asclepium), and test the efficiency of the essential oil as an antimicrobial and antioxidant ***: Essential oil was obtained from the aerial parts of E. asclepium by hydro distillation and analyzed by gas chromatography and gas chromatography coupled with mass spectrometry. We study for the first time the chemical composition of the essential oil of E. asclepium, followed by the in vitro antimicrobial activities, which were evaluated by agar diffusion method against six Gram-positive bacteria, five Gram-negative bacteria, and two fungi. In addition, The antioxidant activities were also investigated using assays of 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity and ferricreducing ***: The analyzed essential oil of the aerial parts of E. asclepium was rich in apinene(43.9%), other compounds detected in appreciable amounts were sabinene(27.9%) and b-pinene(16.0%). The essential oil yields 1.2%, the IC50 values of essential oil in 1,1-diphenyl-2-picrylhydrazyl assay in the reducing power assay were 48.26 mg/m l and at 1 mg/m l, respectively. The absorbance value of essential oil at 700 nm was0.956. The antimicrobial effect was higher on Candida albicans ATCC 1024 strain with the inhibition zone 14.5 mm than bacteria and ***: The essential oil of E. asclepium has antimicrobial and antioxidant activities. These species may be used as an important source of natural antimicrobial and antioxidant agents.

关键词： Elaeoselinum asclepium Apiaceae Essential oil Antimicrobial activity Antioxidant activity Reducing power

Preparation and Reactions of 2-Methyl-7-（3-methyl-5-oxo-1- phenyl-2-pyrazolin-4-yl）-5-arylthiazolo[3,2-a]- pyrimido[4,5-d]oxazin-4（5H）-one

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Chinese Journal of Chemistry 2011年第7期29卷 1473-1482页

作者： Youssef, Mohamed salah K. Abbady, Mohamed S. Ahmed, Ragaa A. Omar, Ahmed A. Chemistry Department Faculty of Science Assiut University Assiut 71516 Egypt

Ethyl 7-amino-3-（3-methyl-5-oxo- 1-phenyl-2-pyrazolin-4-yl）-5-aryl-5H-thiazolo[3,2-a]pyrimidine-6-carboxy- late was hydrolyzed with an ethanolic sodium hydroxide and the sodium salt thus formed underwent cyclization with acetic anhydride to afford 2-methyl-7-（3-methyl-5-oxo-l-phenyl-2-pyrazolin-4-yl）-5-arylthiazolo[3,2-a]- pyrimido[4,5-d]oxazin-4（SH）-one. This compound was transformed to related heterocyclic systems via its reaction with various reagents. The biological activity of the prepared compounds was tested against Gram positive and Gram negative bacteria as well as yeast-like and filamentous fungi. They revealed in some cases excellent biocidal properties.

关键词： thiazolopyrimidooxazinone thiazolopyrimidopyrimidines antimicrobial activity

Chronic neuroprotective effects of low concentration lithium on SH-SY5Y cells:possible involvement of stress proteins and gene expression

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Neural Regeneration Research 2014年第7期9卷 735-740页

作者： Riadh Nciri Ezzeddine Bourogaa Samira Jbahi Mohamed salah Allagui Abdelfattah Elfeki Christian Vincent Franoise Croute Cellular Biology laboratory Purpan Medicine Faculty Paul Sabatier University Ecophysiology laboratory Sciences Faculty of Sfax

To investigate the molecular mechanism underlying the neuroprotective effect of lithium on cells, in this study, we exposed SH-SY5Y cells to 0.5 mmol/l lithium carbonate （li2CO2） for 25-50 weeks and then detected the expression levels of some neurobiology related genes and post-translational modifications of stress proteins in SH-SYSY cells, cDNA arrays showed that pyruvate kinase 2 （PKM2） and calmodulin 3 （CaM 3） expression levels were significantly down-regulated, phosphatase protein PP2A expression was lightly down-regulated, and casein kinase II （CK2）, threonine/tyrosine phosphatase 7 （PYST2）, and dopamine beta-hydroxylase （DBH） expression levels were significantly up-regulated. Besides, western blot analysis of stress proteins （HSP27, HSP70, GRP78 and GRP94） showed an over-expression of two proteins： a 105 kDa protein which is a hyper-phosphorylated isoform of GRP94, and a 108 kDa protein which is a phosphorylated tetramer of HSP27. These results suggest that the neuroprotective effects of lithium are likely related to gene expressions and post-translational modifications of proteins cited above.

关键词： lithium neuroprotection kinase phosphatase stress proteins SH-SY5Y cells geneexpression mechanism of action

Genetic diversity and genomic epidemiology of SARS-CoV-2 in Morocco

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Biosafety and Health 2021年第2期3卷 124-127页

作者： Bouabid Badaoui Khalid Sadki Chouhra Talbi Driss salah lina Tazi Faculty of Sciences Mohamed V University in RabatMorocco

Coronavirus disease 2019(COVID-19)is an infectious disease caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),declared as a pandemic due to its rapid *** this study,we investigate the genetic diversity and genomic epidemiology of SARS-CoV-2,using 22 virus genome sequences reported by three different laboratories in Morocco till June 7,2020,as well as 40,366 virus genomes from all around the *** SARSCoV-2 genomes from Moroccan patients revealed 62 mutations,of which 30weremis-sense *** Spike_D614G and NSP12_P323l were present in all the 22 analyzed sequences,followed by N_G204R and N_R203K,which occurred in 9 among the 22 *** mutations NSP10_R134S,NSP15_D335N,NSP16_I169l,NSP3_l431H,NSP3_P1292l and Spike_V6F occurred once in Moroccan sequences,with no record in other sequences *** analyses revealed that Moroccan SARS-CoV-2 genomes included 9 viruses belonging to Clade 20A,9 to Clade 20B and 2 to Clade 20C,suggesting that the epidemic spread inMorocco did not display a predominant SARS-CoV-2 ***,multiple and unrelated introductions of SARS-CoV-2 into Morocco through different routes have occurred,giving rise to the diversity of virus genomes in the ***,in all probability,the SARS-CoV-2 circulated in a cryptic way inMorocco,starting fromJanuary 15,2020 before the first case was officially discovered on March 2,2020.

关键词： SARS-CoV-2 Genetic diversity Genomic epidemiology Morocco

Chemical composition and antibacterial activity of essential oil of launaea lanifera Pau grown in Algerian arid steppes

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Asian Pacific Journal of Tropical Biomedicine 2015年第11期5卷 960-964页

作者： Tarek Benmeddour Hocine laouer salah Akkal Guido Flamini Department of Nature and life Sciences University of Biskra laboratory of Natural Biological Resources Valorization Faculty of SciencesUniversity of Setif VARENBIOMOl Department of ChemistryUniversity of Constantine 1 Department of Pharmacy University of Pisa

Objective: To evaluate the essential oil composition and the antibacterial activity of an Algerian endemic plant, launaea lanifera Pau(l. lanifera), grown in arid steppe ***: l. lanifera essential oil was isolated from aerial parts by steam distillation and its chemical composition was evaluated by gas chromatographyflame ionization detector and gas chromatography with electron impact mass spectrometry. Furthermore, its in vitro antibacterial activity against four bacterial strains was tested following the agar disk diffusion ***: This species had a very low essential oil yield(0.005%). Twenty-four(92.6%)individual components were identified. The main constituents were hexahydrofarnesyl acetone(31.6%),(E)-b-ionone(8.5%),(E)-b-damascenone(7.0%), 2-methyltetradecane(3.8%), n-heptadecane(3.8%), limonene(2.8%) and b-caryophyllene(2.8%). No noteworthy antimicrobial activity was observed on the tested bacteria, neither Gram negative nor Gram ***: This is the first report on the volatile constituents and antibacterial activity of l. lanifera. The studied essential oil does not possess significant activity against the tested microorganisms.

关键词： launaea lanifera Pau(syn. launaea acanthoclada Mai