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Identification of Hammerstein-Wiener model with discontinuous input nonlinearity

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Science China(Information Sciences) 2023年第12期66卷 33-47页

作者： A.BROURI F.Z.EL MANSOURI F.Z.CHAOUI C.ABDELAALI F.giri ENSAM Moulay Ismail University ENSAM University Mohammed V Normandie Universite

This paper deals with the identification of Hammerstein-Wiener models with an irregular function in the input block. These models comprise a set of linear segments. The linear time invariant(LTI) block may be parametric or nonparametric. The nonlinearity of the output can be any continuous function of arbitrary shape; it is not necessarily assumed to be invertible. Subsequently, sine inputs will be used to identify the system parameters. First, the output nonlinearity is determined by filtering the system output and varying the phase of a given reference sine signal; second, the parameters of the linear block can be determined for any frequency; and finally, the input nonlinearity can be obtained by changing the offset and amplitude of the input sine signal.

关键词： nonlinear systems nonlinear systems identification Hammerstein-Wiener models discontinuous nonlinearities hard nonlinearities

Building bioorthogonal click-release capable artificial receptors on cancer cell surface for imaging,drug targeting and delivery

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药学学报:英文版 2023年第6期13卷 2736-2746页

作者： Jing Chen Peng Ji giri Gnawali Mengyang Chang Feng Gao Hang Xu Wei Wang Department of Pharmacology and Toxicology University of ArizonaTucsonAZ 85721USA Department of Chemistry and Biochemistry University of ArizonaTucsonAZ 85721USA BIO5 Institute and University of Arizona Cancer CenterUniversity of ArizonaTucsonAZ 85721USA

The current targeting drug delivery mainly relies on cancer cell surface ***,in many cases,binding affinities between protein receptors and homing ligands is relatively low and the expression level between cancer and normal cells is not *** from conventional targeting strategies,we have developed a general cancer targeting platform by building artificial receptor on cancer cell surface via a chemical remodeling of cell surface glycans.A new tetrazine(Tz)functionalized chemical receptor has been designed and efficiently installed on cancer cell surface as“overexpressed”biomarker through a metabolic glycan *** from the reported bioconjugation for drug targeting,the tetrazine labeled cancer cells not only locally activate TCO-caged prodrugs but also release active drugs via the unique bioorthogonal Tz-TCO click-release *** studies have demonstrated that the new drug targeting strategy enables local activation of prodrug,which ultimately leads to effective and safe cancer therapy.

关键词： Artificial receptor Click and release Local activation Protein degradation

Treatment on Nature’s lap:Use of herbal products in the management of hyperglycemia

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World Journal of Diabetes 2023年第4期14卷 412-423页

作者： Somdatta giri Jayaprakash Sahoo Ayan Roy Sadishkumar Kamalanathan Dukhabandhu Naik Department of Endocrinology Jawaharlal Institute of Postgraduate Medical Education and ResearchPuducherry 605006India Department of Endocrinology All India Institute of Medical SciencesKalyani 741245West BengalIndia

Diabetes mellitus(DM)is characterized by persistently elevated blood glucose concentration that lead to multisystem *** are about 400 medicinal plants cited to have a beneficial effect on *** must choose products wisely based on data derived from scientific ***,a major obstacle in the amalgamation of herbal medicine in modern medical practices is the lack of clinical data on its safety,efficacy and drug *** of these herbal products often underreport the side effects and other crucial intervention steps deviating from the standards set by Consolidated Standards of Reporting *** to a lack of knowledge of the active compounds present in most herbal medicines,product standardization is ***-effectiveness is another issue that needs to be kept in *** this mini-review,we focus on the antihyperglycemic effect of herbal products that are commonly used,along with the concerns stated above.

关键词： Herbal product HbA1C Diabetes mellitus Active compound Natural therapy Cost-effectiveness

Output feedback control of pantograph–catenary system with adaptive estimation of catenary parameters

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Journal of Modern Transportation 2015年第4期23卷 252-261页

作者： E.Chater D.Ghani F.giri M.Haloua LAII Lab EMI Med V University UNICAEN GREYC Lab UMR CNRS Normandie Universite'

With the increasing railway vehicle speed, pantograph--catenary （PAC） system has become an important part as its incidents still stand among the prin- cipal causes of railway traffic interruption. Indeed, when a rail vehicle moves, the pantograph should constantly press against the underside of the catenary. Nonetheless, it is difficult to get around the complexity of the physical interaction between the pantograph and the contact wire, which could deteriorate the quality of the electricity transfer. Thus, PAC system performances could dramati- cally be reduced because of bad current collection. Therefore, in this paper, we present an output feedback solution in order to design an active control of PAC system. The proposed solution is based on the backstepping control and an adaptive observer that estimates both the （unknown） catenary parameters and the system state. All synthesis steps are given and the closed-loop analysis shows asymptotic tracking behavior regardless of the time-vary- ing catenary stiffness. Furthermore, a numerical example shows that the PAC contact can be regulated with desired effect.

关键词： Transportation systems Periodic systemsanalysis Control of oscillations

Adjuvant role of a T-type calcium channel blocker, TTA-A2, in lung cancer treatment with paclitaxel

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Cancer Drug Resistance 2021年第4期4卷 996-1007页

作者： Neema Kumari Pravin Shankar giri Subha Narayan Rath Department of Biomedical Engineering Indian Institute of Technology HyderabadHyderabad 502285India Department of Biotechnology Indian Institute of Technology HyderabadHyderabad 502285India

Aim:Chemoresistance is a prevalent issue in cancer ***(PTX)is a microtubule-binding anticancer drug used in various cancer ***,cancer cells often show chemoresistance against PTX with the help of P-glycoprotein(Pgp)-a drug efflux *** has also been observed that overexpressed T-type calcium channels(TTCCs)maintain calcium homeostasis in cancer cells,and calcium has a role in ***,the aim of this study was to test the adjuvant role of TTA-A2,a TTCC blocker,in enhancing the anticancer effect of PTX on the A549 lung adenocarcinoma cell ***:Morphology assay,calcium imaging assay,clonogenic assay,apoptosis assay,and real-time polymerase chain reaction(real-time PCR)were performed to find the adjuvant role of *** were treated with PTX at 10 nM concentration and TTA-A2 at 50 and 100 nM *** and TTA-A2 were used in the combination treatment at 10 and 100 nM concentrations,***:Immunocytochemistry confirmed the expression of TTCC in A549 *** assay showed altered morphology of A549 *** adjuvant role of TTA-A2 was observed in the calcium imaging assay in spheroids,in the clonogenic assay in monolayers,and in the apoptosis assay in both *** real-time PCR,it was observed that,even though cells express the mRNA of Pgp,it is non-significant upon treatment with PTX and ***:TTA-A2 can be used as an adjuvant to reduce chemoresistance in cancer cells as well as to enhance the anticancer effect of the standard anticancer drug *** a potent TTCC inhibitor,TTA-A2 may also enhance the anticancer effects of other anticancer drugs.

关键词： TTA-A2 paclitaxel adjuvant lung adenocarcinoma T-type calcium channel blocker

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水泥颗粒生长与黏结的微观分析(英文)

硅酸盐学报 2010年第9期38卷 1613-1617页

作者： VENKITEELA giri 孙芝慧 Civil and Environmental Engineering Department University of Louisville

水泥微观结果的变化是一个十分复杂的过程,其中包含了水泥颗粒的生长、黏联、絮凝以及其它反应。了解这些水泥颗粒的行为对于更好地掌握水泥基材料早期性能非常重要。采用扫描电子显微镜内安装的Quantomix密封舱系统,原位观察了3种不同... 详细信息

水泥微观结果的变化是一个十分复杂的过程,其中包含了水泥颗粒的生长、黏联、絮凝以及其它反应。了解这些水泥颗粒的行为对于更好地掌握水泥基材料早期性能非常重要。采用扫描电子显微镜内安装的Quantomix密封舱系统,原位观察了3种不同的水泥浆体的微观结构。基于这个系统可连续观察水泥浆体微结构发展的优点,研究了水化过程中单个颗粒的生长与颗粒间的连接。通过显微照片的图像分析获得水泥颗粒的灰度变化,用于上述研究。对这些水泥浆体中水泥颗粒的生长与连接情况进行了定量研究。

关键词：微观结构固体颗粒电子显微镜图像分析

Investigation of quark distributions in a family of pentaquarks using the Thomas-Fermi quark model

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Communications in Theoretical Physics 2021年第3期73卷 94-104页

作者： Mohan giri Suman Baral Gopi Chandra Kaphle Nirmal Dangi Sudip Shiwakoti Leonardo Bardomero Paul Lashomb Walter Wilcox Department of Physics Baylor UniversityWacoTX 76798United States of America Everest Institute of Science and Technology KathmanduNP 44618Nepal Central Department of Physics Tribhuvan UniversityKirtipurNP 44600Nepal Neural Innovations LLC LorenaTX 76655United States of America Division of Health Science and Mathematics Niagara County Community CollegeSanbornNY 14132United States of America

Using the Thomas-Fermi quark model,a collective,spherically symmetric density of states is created to represent a gas of interacting fermions with various degeneracies at zero *** a family of pentaquarks,uudcc,color interaction probabilities were obtained after averaging over all the possible *** different functions are developed for light,charm,and anti-charm quarks and are assumed to be linearly related by some proportionality *** patterns of quark distributions are observed while analyzing the quark function consistency conditions for such constants.

关键词： quark models Thomas Fermi models pentaquarks

Interaction between Earthworms and Arbuscular Mycorrhizal Fungi in Plants:A Review

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Phyton-International Journal of Experimental Botany 2021年第3期90卷 687-699页

作者： Lulu Meng A.K.Srivastava Kamil Kuča Bhoopander giri Mohammed Mahabubur Rahman Qiangsheng Wu College of Horticulture and Gardening Yangtze UniversityJingzhou434025China ICAR-Central Citrus Research Institute NagpurMaharashtra440033India Department of Chemistry Faculty of ScienceUniversity of Hradec KraloveHradec Kralove50003Czech Republic Department of Botany Swami Shraddhanand CollegeUniversity of DelhiDelhi110007India Natural Science Unit Tokyo Gakugei UniversityKoganeiTokyo184-8501Japan

Different kinds of soil animals and microorganisms inhabit the plant rhizosphere,which function closely to plant *** them,arbuscular mycorrhizal fungi(AMF)and earthworms play a critical role in sustaining the soilplant *** and AMF belong to the soil community and are soil beneficial organisms at different trophic *** of them improve soil fertility and structural development,collectively promoting plant growth and nutrient acquisition *** activities redistribute mycorrhizal fungi spores and give diversified effects on root mycorrhizal fungal *** inoculation with both earthworms and AMF strongly magnifies the response on plant growth through increased soil enzyme activities and changes in soil nutrient availability,collectively mitigating the negative effects of heavy metal pollution in plants and *** thus enhances phytoremediation and plant disease *** review simply outlines the effects of earthworms and AMF on the soil-plant *** effects of earthworms on root AMF colonization and activities are also *** paper also summarizes the interaction between earthworms and AMF on plants along with suggested future research.

关键词： Earthworm nutrient mycorrhiza soil enzyme stress symbiosis

An Evaluation of the Advanced Dvorak Technique (9.0) for the tropical cyclones over the North Indian Ocean

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Tropical Cyclone Research and Review 2021年第4期10卷 201-208页

作者： Rizwan Ahmed M.Mohapatra Ram Kumar giri Suneet Dwivedi K Banerjee Centre of Atmospheric&Oceanic Studies(KBCAOS) University of Allahabad-UPIndia India Meteorological Department Ministry of Earth Sciences New DelhiIndia

The Advanced Dvorak Technique(ADT)is used by tropical cyclone prediction centres around the world to accurately evaluate the intensity of tropical cyclones(TCs)from meteorological operational *** algorithm development team has introduced new improvements to the objective ADT to further extend its capabilities and accuracy.A study has therefore undergone to evaluate the new edition of ADT(9.0)based on all the North Indian Ocean Tropical cyclones during 2018,2019 and 2020(Total 15 No.).It is found that ADT(9.0)performed well with the conformity of IMD’s best track *** *** is reasonably good in estimating the intensity for T≥4.0(VSCS to SuCS)and overestimate the intensity for T≤3.5(CS/SCS).

关键词： Tropical cyclone Advanced Dvorak Technique(ADT) Intensity Arabian sea and Bay of Bengal