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Experimental nuclear charge density and theoretical description of theabove-barrier light heavy-ion fusion process

Chinese Physics C 2023年第8期47卷 64-74页

作者： i.i.Gontchar M.V.Chushnyakova Physics and Chemistry Department Omsk State Transport UniversityOmskRussia Physics Department Omsk State Technical UniversityOmskRussia

Theoretical modeling of nucleus-nucleus collisions is often based on the nucleus-nucleus *** of the advanced methods for constructing this potential is the semi-microscopical double-folding model with M3 YParis *** and neutron densities are significant components of this *** correct nucleon density(ND) must reproduce the experimental nuclear charge density(NCD).However,those who deal with modeling the fusion process typically disregard this *** aim to achieve a good description of both the nuclear charge density and above-barrier fusion cross sections of even-even light nuclei with Z=*** consider several versions of NDs available in literature and construct our own approximation for the ND of the even-even spherical nuclei^(12)C,^(16)O,and^(40)Ca,abbreviated as FE-density(Fermi+exponential).We carefully compare the NCDs resulting from different versions of NDs with the experimental *** finding the nucleus-nucleus potential using the double-folding model with the density dependent M3 Y-Paris NN-forces and FE densities,we evaluate the abovebarrier fusion cross sections for five reactions,^(12)C+^(12)C,^(12)C+^(16)O,^(16)O+^(16)O,^(16)O+^(40)Ca,and^(40)Ca+^(40)Ca,and40Ca+40Ca,for which experimental data are *** cross sections are calculated using two approaches:a) the barrier penetration model and b) the trajectory model with surface friction(TM).To find the transmission coefficients for the TM,the Langevin equations are *** all considered reactions,our TM typically reproduces the above-barrier experimental cross sections within 10-15%.The only adjustable parameter of the model,the optimal friction strength KRm,is found to be approximately 90 zs·GeV-1for the light reactions12C+12C,12C+16O,and16O+16O and approximately 15zs·GeV-1for the heavy reactions16O+40Ca and40Ca+*** latter findings are in reasonable agreement with the systematics found ***,the FE-recipe allows highly accurate and s

关键词： nuclear charge densities nucleon densities heavy-ion fusion surface friction double-fold-ing model

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Hybrid Clustering Algorithms with GRASP to Construct an initial Solution for the MVPPDP

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Computers, Materials & Continua 2020年第3期62卷 1025-1051页

作者： Abeer i.Alhujaylan Manar i.Hosny Computer Science Department College of Computer and Information SciencesKing Saud UniversityRiyadhSaudi Arabia College of Computer Qassim UniversityBuraydahSaudi Arabia

Mobile commerce(m-commerce)contributes to increasing the popularity of electronic commerce(e-commerce),allowing anybody to sell or buy goods using a mobile device or tablet anywhere and at any *** demand for e-commerce increases tremendously,the pressure on delivery companies increases to organise their transportation plans to achieve profits and customer *** important planning problem in this domain is the multi-vehicle profitable pickup and delivery problem(MVPPDP),where a selected set of pickup and delivery customers need to be served within certain allowed trip *** this paper,we proposed hybrid clustering algorithms with the greedy randomised adaptive search procedure(GRASP)to construct an initial solution for the *** approaches first cluster the search space in order to reduce its dimensionality,then use GRASP to build routes for each *** compared our results with state-of-the-art construction heuristics that have been used to construct initial solutions to this *** results show that our proposed algorithms contribute to achieving excellent performance in terms of both quality of solutions and processing time.

关键词： Multi-vehicle profitable pickup and delivery problem K-means clustering algorithm ant colony optimisation greedy randomised adaptive search procedure metaheuristic algorithms

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Vertical seismic absorber utilizing inertance and negative stiffness implemented with gas springs

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Earthquake Engineering and Engineering Vibration 2023年第1期22卷 225-241页

作者： Kalogerakou M Paradeisiotis A Antoniadis i Dynamics and Structures Laboratory School of Mechanical EngineeringNational Technical University of Athens15780 AthensGreece

A novel implementation of negative stiffness elements(NSEs)is proposed,utilizing industrial grade nitrogen gas springs as pre-stressed stiffness elements in a configuration with lever *** NSE is combined with an inerter to form a stiff dynamic absorber(SDA)for vertical seismic protection of structures with base *** SDA is optimized to minimize vertical accelerations while ensuring static structural integrity,excellent damping performance and containment of relative *** introduction of gas springs in place of conventional linear springs addresses important practical limitations through features of non-linearity and industrial grade *** proposed implementation is dimensioned for a 50-ton structure and evaluated numerically for 25 actual earthquake records,in comparison with a linear SDA model and an equivalent conventional damper(CD).individual and averaged results of acceleration and displacement time histories demonstrate vastly superior response compared to CD regarding induced accelerations for similar *** equivalency with the linear SDA model indicates the stability of the gas spring implementation while guaranteeing predictability,tested endurance,proper tolerances,and off-axis motion resistance without requiring additional guiding components,as opposed to conventional *** features render the proposed implementation a promising solution for the realization of NSEs in seismic protection.

关键词： negative stiffness gas springs vertical seismic protection KDamper inerter

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CP asymmetries in Strange Baryon Decays

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Chinese Physics C 2018年第1期42卷 16-22页

作者： i.i.Bigi 康现伟李海波 Department of Physics University of Notre Dame du Lac College of Nuclear Science and Technology Beijing Normal University institute of Physics Academia Sinica institute of High Energy Physics University of Chinese Academy of Science

While indirect and direct C P violation（CPV） has been established in the decays of strange and beauty mesons, no CPV has yet been found for baryons. There are different paths to finding C P asymmetry in the decays of strange baryons; they are all highly non-trivial. The Hyper CP Collaboration has probed CPV in the decays of singleΞ and Λ [1]. We discuss future lessons from e~＋e^-collisions at BESⅢ/BEPCⅡ： probing decays of pairs of strange baryons, namely Λ, Σ and . Realistic goals are to learn about non-perturbative QCD. One can hope to find CPV in the decays of strange baryons; one can also dream of finding the impact of New Dynamics. We point out that an important new era will start with the BESiii/BEPCii data accumulated by the end of 2018. This also supports new ideas to trigger J/ψ→■Λ at the LHCb collaboration.

关键词： CP asymmetry J/ψ decay hyperon decay BESⅢ/BEPCⅡ

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Applications and theoretical perspectives of artificial intelligence in the rate of penetration

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Petroleum 2022年第2期8卷 237-251页

作者： Chinedu i.Ossai Ugochukwu i.Duru Faculty of Health Arts and DesignSwinburne UniversityJohn Street HawthornVictoria3122Australia Federal University of Technology Owerri Nigeria

Artificial intelligence(Ai)is becoming popular for the Rate of Penetration(ROP)estimation,hence,the need to study the best techniques and their advantages over empirical *** literatures were analysed to determine the prevalence of Ai in ROP computation and compare the computation accuracies with empirical *** Neural Network(ANN)accounted for over 92%of the Ai techniques used for ROP computation and Weight on Bit(WOB)mostly influenced the computation *** accuracy of Ai algorithms is better than the empirical models thus,will improve the drilling efficiency,reduce cost and enhance the development of pad wells.

关键词： Artificial intelligence Drilling operations Rate of penetration optimization Artificial neural network Weight on bit

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Effects of a structurally related substance on the crystallization of paracetamol

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Frontiers of Chemical Science and Engineering 2013年第1期7卷 79-87页

作者： Ali SALEEMi i.i. ONYEMELUKWE Zoltan NAGY Department of Chemical Engineering Loughborough University Loughborough LE11 3TU UK School of Chemical Engineering Purdue University West Lafayette Ind. 47907 USA

Paracetamol （PCM） was crystallized from an isopropanol （iPA） solution containing various small amounts of metacetamol as an additive. The effect on the nucleation kinetics was studied by measuring the induction time to nucleation and the metastable zone width using focused beam reflectance measurements （FBRM） and attenuated total reflectance （ATR-UV/Vis） spectroscopy. Both the induction time and the metastable zone width were expressed as functions of the additive concentration. Small amounts ofmetacetamol （1-4 tool-%） were found to cause significant inhibition to the nucleation by extending both the induction time and the metastable zone width. A progressive change in the morphology of the paracetamol crystals from tabular to columnar habit was observed with increasing metacetamol concentration. The solvent also had a significant effect on the size of the paracetamol crystals as smaller crystals were obtained in iPA than in aqueous solution. The dissolution rate of paracetamol was improved by the incorporation of metacetamol with 4 tool-% having the most effect. A supersaturation control （SSC） approach was implemented for the PCM-iPA system with and without metacetamol in an attempt to control and obtain larger metacetamol-doped paraeetamol crystals.

关键词： acetaminophen metacetamol crystallization metastable zone width induction time supersaturation control

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Continuous monitoring of residual water content in boiling waterhydrocarbon emulsions during thermomechanical dehydration

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Chinese Journal of Chemical Engineering 2024年第12期76卷 118-123页

作者： A.Safiulina S.Khusnutdinov i.Khusnutdinov i.Goncharova institute of Petroleum Chemistry and NanotechnologiesKazan National Research Technological University 420015Russia Chair of Mining Engineering and Mineral Economics University of Leoben 4820Austria

Significant waste resources are generated in the form of water-oil *** emulsions cannot be effectively destroyed on an industrial scale by traditional methods that rely on the settling of the aqueous phase,and therefore,they accumulate in large *** dehydration,based on the evaporation of the water phase,presents a promising process for recycling such ***,within the framework of thermomechanical dehydration,the issue of optimizing energy costs for heating raw materials and controlling the water content in the product *** methods of determining water content under the boiling conditions of highly stable water-hydrocarbon emulsions are characterized by low efficiency,as they require constant sampling and the involvement of additional equipment and ***,this presents a challenge in predicting and creating an automated thermomechanical dehydration ***,dynamic curves depicting changes in the water content of these emulsions,depending on the temperature of the boiling liquid,have been *** is proposed to determine the rate of temperature increase(dT/dt)of the boiling emulsion for continuous,real-time monitoring of the residual water content and for recording the moment of complete *** a boiling emulsion temperature of 130-170℃(or higher)and/or the rate of temperature increase from 3.0 to 5.5(or above)indicates the complete dehydration of the *** proposed method can be implemented in any industrial or laboratory-scale unit for thermomechanical dehydration without significant capital *** is based on the use of simple devices consisting of temperature sensors and a computing unit for determining the temperature and rate of heating.

关键词： Continuous water content monitoring during thermomechanical evaporation Final dehydration temperature The rate of temperature increase Waste treatment Emulsions Process control

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Acute lung injury and acute respiratory distress syndrome： experimental and clinical investigations

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Journal of Geriatric Cardiology 2011年第1期8卷 44-54页

作者： Hsing i Chen institute of Physiological and Anatomical Medicine Tzu Chi University Hualien 97004 Taiwan China

Acute lung injury （ALl） or acute respiratory distress syndrome （ARDS） can be associated with various disorders. Recent investigation has involved clinical studies in collaboration with clinical investigators and pathologists on the pathogenetic mechanisms of ALl or ARDS caused by various disorders. This literature review includes a brief historical retrospective of ALi/ARDS, the neurogenic pulmonary edema due to head injury, the long-term experimental studies and clinical investigations from our laboratory, the detrimental role of NO, the risk factors, and the possible pathogenetic mechanisms as well as therapeutic regimen for ALi/ARDS.

关键词： acute lung injury acute respiratory distress syndrome neurogenic pulmonary edema nitric oxide free radicals cytokines

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The genetics of race differentiation——should it be studied?

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National Science Review 2023年第4期10卷 6-7页

作者： Chung-i Wu NSR School of Life Sciences Sun Yat-sen University

in this issue, NSR publishes an article entitled ‘Expression profiles of east-west highly differentiated genes in Uyghur genomes’ by Ning et al.(2023) [1]. Briefly, it is about the regulation of gene expression in Uyghur genomes, which are admixed between Asian and European genomes. in evolutionary terms, this is a case of post-isolation secondary contact over a time span of thousands of years. in most other cases, such as African Americans, the admixture has a time span of <300 years. Furthermore,

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XML-Based information Fusion Architecture Based on Cloud Computing Ecosystem

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Computers, Materials & Continua 2019年第9期61卷 929-950页

作者： i-Ching Hsu Department of Computer Science and information Engineering National Formosa UniversityHuwei TownshipYunlin County 632Taiwan

Considering cloud computing from an organizational and end user computing point of view,it is a new paradigm for deploying,managing and offering services through a shared *** development of cloud computing applications,however,are the lack of a uniformly approach to cope with the heterogeneous information *** leads cloud computing to inefficient development and a low potential *** study addresses these issues to propose a novel Web 2.0 Mashups as a Service,called WMaaS,which is a fundamental cloud service *** WMaaS is developed based on a XML-based Mashups Architecture(XMA)that is composed of Web 2.0 Mashups technologies,including Web Data,Web APi,Web interaction,and Web Presentation to associate with existing service *** demonstrate the feasibility of this approach,this study implemented a Ubiquitous Location-based Service System(ULSS)that is a cloud computing application developed based on WMaaS to provide continuous and location-based schedule information for organization monitoring and end user needs.

关键词： Web 2.0 mashups open data XML cloud computing

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