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Spin Number Coherent States and the Problem of Two Coupled Oscillators

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Communications in Theoretical Physics 2015年第7期64卷 34-38页

作者： d.Ojeda-Guillén r.d.Mota V.d.Granados Escuela Superior de Fisica y Matemáticas Instituto Politécnico Nacional Ed. 9 Unidad Profesional Adolfo López Mateos Escuela Superior de Ingenieria Mecánica y Eléctrica Unidad Culhuacán Instituto Politécnico Nacional

From the definition of the standard Perelomov coherent states we introduce the Perelomov number coherent states for any su(2) Lie algebra. With the displacement operator we apply a similarity transformation to the su(2)generators and construct a new set of operators which also close the su(2) Lie algebra, being the Perelomov number coherent states the new basis for its unitary irreducible representation. We apply our results to obtain the energy spectrum, the eigenstates and the partition function of two coupled oscillators. We show that the eigenstates of two coupled oscillators are the SU(2) Perelomov number coherent states of the two-dimensional harmonic oscillator with an appropriate choice of the coherent state parameters.

关键词： coherent states Lie algebras coupled oscillators

Organic micro-pollutant removal in liquid-phase using carbonized silk cotton hull

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Journal of Environmental Sciences 2008年第9期20卷 1046-1054页

作者： M Sathishkumar A r Binupriya d Kavitha r Selvakumar K K Sheema J G Choi department of Food Science and Technology Institute of Agricultural Science and Technology Chonbuk National University department of Chemical Engineering Yonsei University department of Biotechnology Bharathiar University department of Plant biology and Biotechnology Government Arts College National Agricultural Products Quality Management Services

Phenolic compounds constitute one of the major pollutants in the modern world. Although many physical and chemical treatment technologies for their removal exist, most of them are economically not feasible. The present study was aimed at using silk cotton hull, a potent agricultural waste as an adsobent for removal of 2,4-dichlorophenol (2,4-dCP), which was used as a model phenolic compound. The process parameters were investigated and optimized conditions were determined. The equilibrium time was found to ...

关键词： silk cotton hull carbon adsorption 2 4-dCP temperature kinetic study

Evaluation of influence of cold atmospheric pressure argon plasma operating parameters on degradation of aqueous solution of reactive Blue 198(rB-198)

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Plasma Science and Technology 2020年第5期22卷 114-125页

作者： K NAVANEETHA PANdIYArAJ d VASU P V A PAdMANABHAN M PICHUMANI r r dESHMUKH V KANdAVELU research division of Plasma Processing(rdPP) Department of PhysicsSri Shakthi Institute of Engineering and TechnologyChinniyam Palayam(post)Coimbatore-641062India department of Nanoscience and Technology Sri Ramakrishna Engineering CollegeCoimbatore-641022India department of Physics Institute of Chemical TechnologyMatungaMumbai 400019India department of Chemistry Sri Shakthi Institute of Engineering and TechnologyL&T bypassChinniyam Palayam(post)Coimbatore-641062India

The intention of this work is to remove reactive Blue 198(rB-198)dye components from simulated water solution using cold atmospheric pressure argon plasma *** solutions of rB-198 dye were treated as a function of various operating parameters such as applied potential,reaction time and distance between the plasma jet and surface of the *** efficiency of the degradation of rB-198 molecules was explored by means of UV-Vis *** reactive species involved during the treatment process were examined by optical emission spectra(OES).The present hydroxyl radicals(OH·radical)and hydrogen peroxide(H2O2)in the plasma-treated aqueous dye solutions were investigated using various spectroscopic *** other parameters such as total organic carbon(TOC),conductivity and p H were also *** toxicity of plasma-treated rB-198 solution was finally studied by diffusion bacterial analysis and by tracking seed germination *** results show that a higher degradation percentage of99.27%was acquired for the rB-198 treated at higher reaction time and applied potential,and shorter distance between the plasma jet and water *** may be due to the formation of various reactive oxygen(OH·radical,atomic oxygen(O)and H2O2)and nitrogen species(nitric oxide(NO)radicals and N2 second positive system(N2 SPS))during the processes as confirmed by OES analysis and other spectroscopy ***(17.7%-81.8%)and pH(7.5-3.4)values of the plasma-treated rB-198 decreased significantly with respect to various operation parameters,which indicates the decomposition of rB-198 molecules in the aqueous ***,the conductivity of plasma-treated rB-198 aqueous solutions was found to have increased linearly during the plasma treatment due to the formation of various ionic species in aqueous *** toxicity analysis clearly exhibits the non-toxic behavior of plasma-treated rB-198 aqueous solution towards the bacterial growth and germination of see

关键词： rB-198 degradation non-toxicity cold atmospheric pressure plasma jet

Simultaneous production and utilization of methanol for methyl formate synthesis in a looped heat exchanger reactor configuration

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Journal of Natural Gas Chemistry 2012年第6期21卷 661-672页

作者： A.Goosheneshin r.Maleki d.Iranshahi M.r.rahimpour A.Jahanmiri department of Chemical Engineering Lamerd Branch Islamic Azad University Chemical Engineering department School of Chemical and Petroleum Engineering Shiraz University

In this investigation, a novel thermally coupled reactor （TCr） containing methyl formate （MF） production in the endothermic side and methanol synthesis in the exothermic side has been investigated. The interesting feature of this TCr is that productive methanol in the exothermic side could be recycled and used as feed of endothermic side for MF synthesis. Other important advantages of the proposed system are high production rates of hydrogen and MF. The configuration consists of two thermally coupled concentric tubular reactors. In these coupled reactors, autothermal system is obtained within the reactor. A steady-state heterogeneous model is used for simulation of the coupled reactor. The proposed model has been utilized to compare the performance of TCr with the conventional methanol reactor （CMr）. Noticeable enhancement can be obtained in the performance of the reactors. The influence of operational parameters is studied on reactor performance. The results show that coupling of these reactions could be feasible and beneficial. Experimental proof-of-concept is required to validate the operation of the novel reactor.

关键词： methyl formate methanol synthesis looped heat exchanger reactor configuration steady-state heterogeneous model

Physical chemical and biological characterization of a new bacteriocin produced by Bacillus cereus NS02

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Asian Pacific Journal of Tropical Medicine 2013年第12期6卷 934-941页

作者： Senbagam d Gurusamy r Senthilkumar B department of Biotechnology Vivekanandha College of Engineering for Women Tiruchengode-637 205Tamil NaduIndia department of Biotechnology Muthayammal College of Arts and ScienceRasipuram-637 408.Tamil NaduIndia

Objective:To screen the bacteriocinogenic isolate from buffalo milk and to characterize it on physical,chemical and biological aspects for the application in ***:Bacillus cereus(***)was isolated and assessed for its baceteriocinogenic *** was produced and purified by ammonium sulphate precipitation,dialysis and gel filtration *** bacteriocin was used to clieck its antimicrobial activity against food borne *** and stability of bacteripcin was determined with the respect to temperature,pH,enzymes,organic solvents and *** was also subjected to SdS PAGE analysis to determine its molecular *** addition,functional groups exist in the bacteriocin was determined by FTIr ***:*** was identified by 16S rrNA sequence *** showed increased activity against all the bacteria used and its activity unit was found to be 51,200 AU/*** was stable to high temperature(100℃)and wide range of pH(3-10),sensitive to proteolytic enzymes and resistant to nonprotcolytic *** was low molecular weight(3.5-6 kda)protein and FTIr study revealed the presence of amide group and NH stretching,Conclusions:Bacteriocin produced in this study possesses the highest antimicrobial activity against both gram positive and gram negative bacteria thereby it has immense application as biopreservative *** proved its peptide nature.

关键词： Bacillus cereus Bacteriocin Antimicrobial activity FTIr

The student edition of MINITAB for Windows 95 and Windows NT Student edition

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The student edition of MINITAB for Windows 95 and Windows NT

Integrated supply chain model for deteriorating item with exponential demand and triangular fuzzy on holding costs

1998年

作者： mckenzie John d.

来源：畅想之星图书光盘版（南... 评论

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畅想之星图书光盘版（南通市图书馆镜像）

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Journal of Control and decision 2017年第4期4卷 234-262页

作者： d.Sharmila r.Uthayakumar department of Mathematics The Gandhigram Rural Institute–Deemed UniversityGandhigramIndia

On this paper,we proposed a generalize,incorporated deliver chain model for providers and outlets where delay in bills is obtainable through the suppliers and the shops for consistent deteriorating ***,we provide the mathematical formulations for the trouble beneath have a look at,and then endorse the solution process to derive the top-quality *** here shortages are not *** we projected exponential call for for stores and the *** goal of this paper is to take a look at the stock modeling through fuzzy *** here we use triangular fuzzy range for purchasing the greatest *** an efficient algorithm is developed to decide most useful *** technique is illustrated via a few numerical instance to showcase the utility and the overall performance of the proposed method.

关键词： Exponential demand deterioration distributions integrated model triangular fuzzy fuzzy deterioration

Hybrid deep Learning-Based Adaptive Multiple Access Schemes Underwater Wireless Networks

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Intelligent Automation & Soft Computing 2023年第2期35卷 2463-2477页

作者： d.Anitha r.A.Karthika SrM Institute of Science and Technology KattankulathurChennai603203India Vels Institute of Science Technology&Advanced StudiesChennai600117India

Achieving sound communication systems in Under Water Acoustic(UWA)environment remains challenging for *** communication scheme is complex since these acoustic channels exhibit uneven characteristics such as long propagation delay and irregular doppler *** development of machine and deep learning algorithms has reduced the burden of achieving reli-able and good communication schemes in the underwater acoustic *** paper proposes a novel intelligent selection method between the different modulation schemes such as Code division Multiple Access(CdMA),Time divi-sion Multiple Access(TdMA),and Orthogonal Frequency division Multiplexing(OFdM)techniques using the hybrid combination of the convolutional neural net-works(CNN)and ensemble single feedforward layers(SFL).The convolutional neural networks are used for channel feature extraction,and boosted ensembled feedforward layers are used for modulation selection based on the CNN *** extensive experimentation is carried out and compared with other hybrid learning models and conventional *** results demonstrate that the performance of the proposed hybrid learning model has achieved nearly 98%accuracy and a 30%increase in BEr performance which outperformed the other learning models in achieving the communication schemes under dynamic underwater environments.

关键词： Code division multiple access time division multiple access convolutional neural networks feedforward layers

On the Computations of Gas-Solid Mixture Two-Phase Flow

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Advances in Applied Mathematics and Mechanics 2014年第1期6卷 49-74页

作者： d.Zeidan r.Touma department of Mathematics Al-Balqa Applied UniversityAl-SaltJordan department of Computer Science&Mathematics Lebanese American UniversityBeirutLebanon

This paper presents high-resolution computations of a two-phase gas-solid mixture using a well-defined mathematical *** HLL riemann solver is applied to solve the riemann problem for the model *** solution is then employed in the construction of upwind Godunov methods to solve the general initial-boundary value problem for the two-phase gas-solid *** representative test cases have been carried out and numerical solutions are provided in comparison with existing numerical *** demonstrate the robustness,effectiveness and capability of these methods,the model results are compared with reference *** addition to that,these results are compared with the results of other simulations carried out for the same set of test cases using other numerical methods available in the *** diverse comparisons demonstrate that both the model equations and the numerical methods are clear in mathematical and physical concepts for two-phase fluid flow problems.

关键词： Hyperbolic conservative equations two-phase flows compressible gas-solid mixture conservation laws approximate riemann solver upwind Godunov methods numerical simulation.