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LiDAR-based estimation of bounding box coordinates using Gaussian process regression and particle swarm optimization

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Biomimetic Intelligence & Robotics 2024年第1期4卷 24-35页

作者： Vinodha K. e.s.Gopi Tushar Agnibhoj Department of electronics and Communication engineering National Institute of Technology TiruchirappalliTamil Nadu620015India

Camera-based object tracking sys.e.s in a given closed environment lack privacy and *** this study,light detection and ranging(LiDAR)was applied to track objects similar to the camera tracking in a closed environment,guaranteeing privacy and *** primary objective was to demonstrate the efficacy of the proposed technique through carefully designed experiments conducted using two *** s.e.ario I,the study illustrates the capability of the proposed technique to detect the locations of multiple objects positioned on a flat surface,achieved by analyzing LiDAR data collected from several locations within the closed *** II demonstrates the effectiveness of the proposed technique in detecting multiple objects using LiDAR data obtained from a single,fixed ***-time experiments are conducted with human subjects navigating predefined *** individuals move within an environment,while LiDAR,fixed at the center,dynamically tracks and identifies their locations at multiple *** demonstrate that a single,strategically positioned LiDAR can adeptly detect objects in motion around ***,this study provides a comparison of various regression techniques for predicting bounding box *** process regression(GPR),combined with particle swarm optimization(PsO)for prediction,achieves the lowest prediction mean square error of all the regression techniques.e.amined at *** tuning of GPR using PsO significantly minimizes the regression *** of the experiment pave the way for its.e.tension to various real-time applications such as crowd management in malls,surveillance sys.e.s,and various Internet of Things s.e.arios.

关键词： LiDAR Data acquisition Bounding box Gaussian process regression Particle swarm optimization(PsO)

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Nanomotion of bacteria to determine metabolic profile

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Nanotechnology and Precision engineering 2024年第1期7卷 1-9页

作者： s.N.Pleskova e.V.Lazarenko N.A.Bezrukov R.N.Kriukov A.V.Boryakov M.e.Dokukin s.I.surodin Research Laboratory of scanning Probe Microscopy Lobachevsky State University of Nizhny NovgorodNizhny Novgorod 603950Russia Department of Nanotechnology and Biotechnology Nizhny Novgorod State Technical University n.a.R.E.AlekseevNizhny Novgorod 603950Russia sarov Physics and Technology Institute National Research Nuclear University MEPhISarov 607186Russia

In addition to their visible motion such as swimming(e.g.,with the help ofﬂagella),bacteria can also exhibit nanomotion that is detectable only with highly sensitive instruments,and this study shows that it is possible to detect bacterial nanomotion using an AFM detection *** results show that the nanomotion characteristics depend on the bacterial strain,and that nanomotion can be used to sense the metabolic activity of bacteria because the oscillations are sensitive to the food preferences of the bacteria and the type of surrounding medium.

关键词： Nanomotion Bacteria Cantilever Oscillation Atomic force microscopy Metabolism

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Magneto-Photo-Thermoelastic excitation Rotating semiconductor Medium Based on Moisture Diffusivity

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Computer Modeling in engineering & sciences 2024年第10期141卷 107-126页

作者： Khaled Lotfy A.M.s.Mahdy Alaa A.el-Bary e.s.e.idy Department of Mathematics Faculty of ScienceZagazig UniversityZagazig44519Egypt Department of Mathematics Faculty of ScienceTaibah UniversityMadinah42353Saudi Arabia Department of Mathematics and statistics College of ScienceTaif UniversityTaif11099Saudi Arabia Arab Academy for science Technology and Maritime TransportAlexandria1029Egypt

In this research,we focus on the free-surface deformation of a one-dimensional elastic semiconductor medium as a function of magnetic field and moisture *** problem aims to analyze the interconnection between plasma and moisture diffusivity proces.e.,as well as thermo-elastic *** study examines the photothermoelasticity transport process while considering the impact of moisture *** employing Laplace’s transformation technique,we derive the governing equations of the photo-thermo-elastic *** equations include the equations for carrier density,elastic waves,moisture transport,heat conduction,and constitutive *** stres.e.,thermal conditions,and plasma boundary conditions are used to calculate the fundamental physical parameters in the Laplace *** employing numerical techniques,the Laplace transform is inverted to get complete time-domain solutions for the primary physical domains under ***,thermoelastic,and thermoelectric characteristics are employed in conjunction with a graphical analysis that takes into consideration the effects of applied forces on displacement,moisture concentration,carrier density,stress due to forces,and temperature distribution.

关键词： Moisture diffusivity semiconductor photothermoelastic rotation thermomechanical waves laplace transform

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Investigations of nuclear chirality at iThemba LABs

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Frontiers of physics 2024年第2期19卷 7-38页

作者： R.A.Bark e.A.Lawrie C.Liu s.Y.Wang iThemba Laboratory for Accelerator Based sciences National Research FoundationP.O.Box 722Somerset-West 7129South Africa Department of Physics University of the Western CapePrivate Bag X177535BellvilleSouth Africa shandong Provincial Key Laboratory of Optical Astronomy and solar-Terrestrial environment Institute of Space SciencesShandong UniversityWeihai 264209China

Progress in the studies of chirality in atomic nuclei at iThemba LABs is *** regions of chirality,around mass 80 and 190 have been discovered using the AFRODITe array,s.e.ifically in the nuclei^(74)As,^(78,80,82)Br,^(81)Kr,and^(193,194,198)*** phenomena have been observed,including multiple chiral bands in the same nucleus,the coexis.e.ce of octupole correlations and nuclear chirality,and the coexis.e.ce of pseudo spin and nuclear *** best example of chiral degeneracy to date was found in ^(194)*** level scheme of ^(106)Ag has been revisited and interpreted in terms of two-and four-quasiparticle *** using the particle-rotor model have shown that the fingerprints of chirality in the two-quasiparticle sys.e. only can occur in an idealised model *** sys.e.s with a higher number of quasiparticles,the calculations showed that nuclear chirality can persist.

关键词： chirality high-spin states particle-rotor model

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Collective coherent emission of electrons in strong laser fields and pers.e.tive for hard x-ray lasers

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Matter and Radiation at extremes 2024年第2期9卷 1-3页

作者： e.G.Gelfer A.M.Fedotov O.Klimo s.Weber extreme Light Infrastructure eRIC ELI Beamlines Facility25241 Dolní BřežanyCzech Republic HiLAse Centre Institute of Physics of the Czech Academy of Sciences25241 Dolní BřežanyCzech Republic National Research Nuclear University MePhI Moscow 115409Russia FNsPe Czech Technical University in Prague11519 PragueCzech Republic

Coherent motion of particles in a plasma can imprint itself on *** recent advent of high-power lasers—allowing the nonlinear inverse Compton-scattering regime to be reached—has opened the possibility of looking at collective effects in laser–plasma *** certain conditions,the collective interaction of many electrons with a laser pulse can generate coherent radiation in the hard x-ray *** pers.e.tive paper explains the limitations under which such a regime might be attained.

关键词： laser scattering coherent

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Kriging-boos.e. CR modeling for prompt infill drilling optimization

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Petroleum 2024年第1期10卷 39-48页

作者： elizaveta s.Gladchenko Anna e.Gubanova Denis M.Orlov Dmitry A.Koroteev skolkovo Institute of science and Technology Russian Federation Digital Petroleum LLC Russian Federation

The capacitance-resistance model(CRM) has been a useful physics-based tool for obtaining production forecasts for decades. However, the model's limitations make it difficult to work with real field cases,where a lot of various.e.ents happen. such events often include new well commissioning(NWC). We introduce a workflow that combines CRM concepts and kriging into a single tool to handle these types of events during history matching. Moreover, it can be used for selecting a new well placement during infill drilling. To make the workflow even more versatile, an improved version of CRM was used. It takes into account wells shut-ins and performed workovers by additional adjustment of the model coefficients. By preliminary re-weighing and interpolating these coefficients using kriging, the coefficients for potential wells can be determined. The approach was validated using both synthetic and real datasets, from which the cases of putting new wells into operation were selected. The workflow allows a fast as.e.s.e.t of future well performance with a minimal set of reservoir data. This way, a lot of well placement s.e.arios can be considered, and the best ones could be chosen for more detailed studies.

关键词： Capacitance-resistance model (CRM) Field development optimization Infill drilling Interwell connectivity Kriging New well commissioning (NWC)

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Investigation of the transformation of organic matter of carbonate deposits of the semiluksky-Mendymsky horizon under hydrothermal conditions

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Petroleum 2024年第2期10卷 216-223页

作者： s.M.Petrov A.I.Lakhova e.G.Mois.e.a A.G.safiulina Institute of Petroleum Chemistry and Nanotechnologies Kazan National Research Technological University Institute of Geology and Oil and Gas Technologies Kazan Federal University

The paper presents the results of studies on the transformation of the organic matter of siliceous-clayey carbonate rocks of the semiluksko-Mendymsky horizon of the Romashkino oil field in a hydrothermal fluid for an hour（with a water-to-rock ratio of 33） at 340℃ and 380℃ and pressu res of 17 and 20 *** a result of hydrothermal treatment,at 340℃ and 17 MPa,based on nitrogen porosimetry and electron microscopy data,transformations of rock-forming minerals in the rock are *** lead to an increase in the volume and average diameter of mesopores in it and the formation of micropores,as well,which improve its filtration *** the same time,the amount of kerogen in the composition of the organic matter decreases and the yield of the petroleum hydrocarbon extract increases,in which,according to the sARA analysis,the content of asphaltenes increases and the content of resins,aromatic and saturated hydrocarbons *** the composition of aroatic hydrocarbons,the proportion of a lkyltri methyl benzenes and dibenzothiophenes increases,phenanthrene homologues appear,and in the composition of saturated hydrocarbons,the amount of iso-structure alkanes decreases relative to the content of linear *** the temperature and pressure of the hydrothermal fluid to 380℃ and 20 MPa increases the degree of kerogen conversion from 12.4% to 23.6%.At the same time,changes occurring in the component composition of petroleum hydrocarbon extracts remains similar to the experiments carried out at 340℃ and 17 MPa;the content of naphthalenes decreases,the content of dibenzothiophenes increases and C11-C17,C19-C22alkyltrimethylbenzenes *** to IR s.e.troscopy,with increasing temperature and pressure of the hydrothermal fluid the intensity of the absorption bands of the aromatic ring,aliphatic fragments,and oxygen-containing groups increases in resins;the structural-group composition of asphaltenes changes little:aromaticity and the content of condensed

关键词： Carbonate deposits Organic matter Hydrothermal fluid Mobile hydrocarbons

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Ca-based materials derived from calcined cigarette butts for CO_(2)capture and thermochemical energy storage

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Journal of environmental sciences 2024年第6期140卷 230-241页

作者： Nabil Amghar Virginia Moreno Pedro e.sánchez-Jiménez Antonio Perejón Luis A.Pérez-Maqueda Instituto de Ciencia de Materiales de sevilla C.S.I.C.-Universidad de SevillaC.Américo Vespucio4941092 SevillaSpain Instituto de Tecnología de Materiales(ITM) Universitat Politècnica de València(UPV)Plaza Ferrándiz y Carbonell 1AlcoyAlicante 03801Spain Departamento de Química Inorgánica Facultad de QuímicaUniversidad de Sevilla41012 SevillaSpain

Cigarette butts(CBs)are one of the most common types of litter in the *** to the toxic substances they contain,the was.e.generated poses a harmful risk to the environment,and therefore there is an urgent need for alternative solutions to landfill ***,this work presents a possible revalorization of this was.e.material,which implies interesting environmental *** were used as sacrificial templates for the preparation of CaO-based materials by impregnation with calcium and magnesium nitrates followed by flaming *** materials presented enhanced porosity for their use in the Calcium Looping process applied either to thermochemical energy storage or CO_(2)capture *** influence of the concentration of Ca and Mg in the impregnating solutions on the multicycle reactivity of the samples was *** improved multicycle performance was obtained in terms of conversion for both applications.

关键词： Cigarette butts Calcium-Looping CO_(2)Capture Thermochemical energy storage

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Transcriptional reprogramming during human os.e.clast differentiation identifies regulators of os.e.clast activity

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Bone Research 2024年第1期12卷 180-198页

作者： Morten s.Hansen Kaja Madsen Maria Price Kent s.e.Yasunori Omata Mario M.Zaiss Caroline M.Gorvin Morten Frost Alexander Rauch Molecular endocrinology Laboratory(KMeB) Department of EndocrinologyOdense University HospitalDK-5000 Odense CDenmark Department of Clinical Research Faculty of Health SciencesUniversity of Southern DenmarkDK-5000 Odense CDenmark Clinical Cell Biology Pathology Research UnitDepartment of Clinical ResearchUniversity of Southern DenmarkDK-5000 Odense CDenmark Institute of Metabolism and sys.e.s Research(IMsR)and Centre for Diabetes Endocrinology and Metabolism(CEDAM)University of BirminghamBirmingham B152TTUK Centre for Membrane Proteins and Receptors(COMPARe) Universities of Birmingham and NottinghamBirmingham B152TTUK Department of Molecular Medicine University of Southern DenmarkDK-5000 Odense CDenmark Department of Orthopedic surgery Faculty of MedicineThe University of TokyoTokyo 113-8655Japan Department of Internal Medicine 3 Rheumatology and ImmunologyFriedrich-Alexander-University Erlangen-Nürnberg(FAU)and Universitätsklinikum ErlangenD-91054 ErlangenGermany Deutsches Zentrum Immuntherapie(DZI) Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum ErlangenD-91054 ErlangenGermany s.e.o Diabetes Center Odense Odense University HospitalDK-5000 Odense CDenmark

enhanced os.e.clastogenesis and os.e.clast activity contribute to the development of os.e.porosis,which is characterized by increased bone resorption and inadequate bone *** novel antios.e.porotic therapeutics are needed,understanding the genetic regulation of human os.e.clastogenesis could help identify potential treatment *** study aimed to provide an overview of transcriptional reprogramming during human os.e.clast *** were differentiated from CD14+monocytes from eight female *** sequencing during differentiation revealed 8980 differentially expres.e. genes grouped into eight temporal patterns conserved across *** patterns revealed distinct molecular functions associated with postmenopausal os.e.porosis sus.e.tibility genes based on RNA from iliac crest biops.e. and bone mineral density *** analyses revealed mutual dependencies between temporal expression patterns and provided insight into subtype-s.e.ific transcriptional *** donor-s.e.ific expression patterns revealed genes at the monocyte stage,such as filamin B(FLNB)and oxidized low-density lipoprotein receptor 1(OLR1,encoding LOX-1),that are predictive of the resorptive activity of mature *** expression of differentially expres.e. G-protein coupled receptors was strong during os.e.clast differentiation,and these receptors are associated with bone mineral density sNPs,suggesting that they play a pivotal role in os.e.clast differentiation and *** regulatory effects of three differentially expres.e. G-protein coupled receptors were exemplified by in vitro pharmacological modulation of complement 5 A receptor 1(C5AR1),somatostatin receptor 2(ssTR2),and free fatty acid receptor 4(FFAR4/GPR120).Activating C5AR1 enhanced os.e.clast formation,while activating ssTR2 decreased the resorptive activity of mature os.e.clasts,and activating FFAR4 decreased both the number and resorptive activity of mature *** conclus

关键词： os.e.clast programming identif

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Using proteomics to compare the molecular structures of sulfide and permeate-depilated s.e.pskins

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Collagen and Leather 2024年第1期6卷 70-84页

作者： Yi-Hsuan Tu Trevor s.Loo Mark L.Patchett Gillian e.Norris school of Natural sciences Massey UniversityPalmerston NorthNew Zealand

An environmentally friendly method using real or artificial bovine milk permeate to both depilate and preserve s.e.pskins has been reported which completely and cleanly removed the wool from the hair follicle and had no detrimental effects on the skin.A proteomic analysis,as.e.sing the relative abundance of proteins in matched permeate-depilated and chemically depilated(sulfide)s.e.pskins,showed variations in the levels of s.e.ific collagen types in the skin's basement membrane and other proteins associated with the *** findings were corroborated by biochemical analyses of matched permeate depilated and raw skin samples,and provide clues to the mechanism of non-invasiveand complete *** also support the observation that permeate-depilated skins were smoother than their sulfide-depilated counterparts and resulted in leather with a superior surface.

关键词： Collagen Collagen crosslinks Glycosaminoglycan Proteomics Relative abundance

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