bluuebunny/crossref_metadata_2025 huggingface dataset:
Fractal structure of hadrons and non-extensive statistics*
Authors: Megías Eugenio , Deppman Airton , Frederico Tobias , Menezes Débora P.
Published: November 2018

The role played by non-extensive thermodynamics in physical systems has been under intense debate for the last decades. Some possible mechanisms that could give rise to non-extensive statistics have been formulated along the last few years, in particular the existence of a fractal structure in thermodynamic functions for hadronic systems. We investigate the properties of such fractal thermodynamical systems, in particular the fractal scale invariance is discussed in terms of the Callan-Symanzik equation. Finally, we propose a diagrammatic method for calculations of relevant quantities.
Conformal Ward Identities and the Coupling of QED and QCD to Gravity
Authors: Corianò Claudio , Maglio Matteo Maria
Published: November 2018

We present a general study of 3-point functions of conformal field theory (CFT) in momentum space, following a reconstruction method for tensor correlators, based on the solution of the conformal Ward identities (CWIs), introduced in recent works. We investigate and detail the structure of the CWIs and their non-perturbative solutions, and compare them to perturbation theory, taking QED and QCD as examples. Exact solutions of CFT’s in the flat background limit in momentum space are matched by the perturbative realizations in free field theories, showing that the origin the conformal anomaly is related to effective scalar interactions, generated by the renormalization of the longitudinal components of the corresponding operators.
First signs of collectivity in N = 86 and 88 isotones above 132Sn
Authors: NAÏDJA Houda , NOWACKI Frédéric
Published: November 2018

Within the shell-model framework the low-lying states energies, E2 and M1 transitions of chains of nuclei 52 ≤ Z ≤ 60 with 82 ≤ N ≤ 88 are investigated. We use the N3LOP effective interaction derived from Effective Field Theory Potentials and phenomenologically constrained. We noticed clear collective features in N = 86 and 88 isotones, with signature of triaxial γ-bands.
High-precision measurement of isotopic fission yields of 236U*
Authors: Audouin L. , Taieb J. , Chatillon A. , Grente L. , Boutoux G. , Gorbinet T. , Martin J.-F. , Alvarez-Pol H. , Ayyad Y. , Bélier G. , Benlliure J. , Caamaño M. , Casarejos E. , Cortina-Gil D. , Farget F. , Fernández-Domínguez B. , Heinz A. , Johansson H. , Jurado B. , Kelić-Heil A. , Kurz N. , Laurent B. , Lindberg S. , Löher B. , Nociforo C. , Paradela C. , Pietri S. , Ramos D. , Rodriguez-Sanchez J.-L. , Rodrìguez-Tajes C. , Rossi D. , Schmidt K.-H. , Simon H. , Tassan-Got L. , Törnqvist H. , Voss B. , Weick H. , Yan Y.
Published: November 2018

We report on the second SOFIA experiment, dedicated to the fission yields of 236U*, analog to 235U(n,f). The measurement is based on the inverse kinematics method, using a relativistic, secondary beam of 236U. Both fission fragments are identified in mass and charge in the SOFIA recoil spectrometer. The obtained isotopic yields are compared with existing spectroscopy measurements and the elemental yields are used to discuss the treatment of the even-odd effect with energy in nuclear data libraries.
Total kinetic energy and fragment mass distributions from fission of Th-232 and U-233
Authors: Higgins Daniel , Greife Uwe , Mosby Shea , Tovesson Fredrik
Published: November 2018

Properties of fission in Th-232 and U-233 were studied at the Los Alamos Neutron Science Center at incident neutron energies from subthermal to 40 MeV. Fission fragments are observed in coincidence using a twin ionization chamber with Frisch grids. The average total kinetic energy released from fission and fragment mass distributions are calculated from observations of energy deposited and conservation of mass and momentum. Accurate experimental measurements of these parameters are necessary to better understand the fission process in isotopes relevant to the thorium fuel cycle, in which Th-232 is used as a fertile material to generate the fissile isotope of U-233. This process mirrors the uranium breeder process used to produce Pu-239 with several potential advantages including the comparative greater abundance of thorium, inherent nuclear weapons proliferation resistance, and reduced actinide production. Thus, there is increased interest in the thorium fuel cycle to meet future energy demands and improve safety and security while increasing profitability for the nuclear power industry. This research is ongoing and preliminary results are presented.
Gamma-beam photofission experiments at ELI-NP: The future is emerging
Authors: Balabanski D. L. , Choudhury D. , Oberstedt A. , Krasznahorkay A. , Csige L. , Gulyas J. , Csatlos M. , Coban S.
Published: November 2018

At the Extreme Light Infrastructure - Nuclear Physics facility (ELI-NP), high-power laser systems together with high-brilliance gamma beams are the main research tools. The status of the construction of the facility is reported. The emerging photofission experimental program with brilliant gamma beams at ELI-NP is presented with emphasis on the prepared day-one experiments. The physics cases of the flagship experiments at ELI-NP are discussed, as well as the related instruments which are under construction for their realization.
Advances at TRIUMF-ISAC and decay of neutron-rich Cd studied with GRIFFIN
Authors: Garrett P.E. , Bernier N. , Dunlop R. , MacLean A.D. , Bildstein V. , Dillmann I. , Jungclaus A. , Svensson C.E. , Andreoiu C. , Ball G.C. , Bidaman H. , Boubel P. , Burbadge C. , Caballero-Folch R. , Dunlop M.R. , Evitts L.J. , Garcia F. , Garnsworthy A.B. , Hackman G. , Hallam S. , Henderson J. , Ilyushkin S. , Kisliuk D. , Krücken R. , Lassen J. , Li R. , MacConnachie E. , McGee E. , Moukaddam M. , Olaizola B. , Ortner K. , Padilla-Rodal E. , Park J. , Paetkau O. , Petrache C.M. , Pore J.L. , Radich A.J. , Ruotsalainen P. , Smallcombe J. , Smith J.K. , Tabor S.L. , Teigelhöfer A. , Turko J. , Whitmore K. , Zidar T.
Published: November 2018

The β-decay half lives of nuclei near the r-process path are critical information required for abundance calculations, especially those near neutron number N = 82. Specifically, the nuclei below doubly-magic 132Sn are key, and play an important role in the formation and shape of the second r-process abundance peak. The half lives in this region are challenging to measure due to the significant β-delayed neutron decay branches and the population of isomeric states with half lives comparable to the ground states. However, by measuring the time distribution of γ rays, these complications can be eliminated. This requires, however, a very effcient γ-ray spectrometer since the production of isotopes in this region is very limited. The new GRIFFIN array at TRIUMF-ISAC provides the high effciency required for these measurements. Recent improvements in the quality of the beams produced at TRIUMF, employing the IG-LIS device, are outlined, as well as the current status of the ARIEL facility. The GRIFFIN spectrometer and its use are briefly described. The experiment to measure the half lives of 128-130Cd is outlined and the results given, and some examples of the power of GRIFFIN to expand decay schemes, specifically for the decay of 128Cd to 128In, are given.
Large–scale shell model calculations for 140Xe
Authors: Dimitrova Sevdalina , Iudice Nicola Lo
Published: November 2018

This paper presents the results of a large-scale shell model calculations of the yrast spectrum of 140Xe. We extend the previous calculations confined to low-lying angular momenta to high-spin states apply- ing the same importance sampling iterative matrix diagonalization algorithm. Excitation energies and transi- tion probabilities are obtained by using an effective nucleon-nucleon interaction derived from the CD-Bonn nucleon-nucleon potential. A satisfactory agreement with the experimental data and the previous results for low lying states is achieved.
Study of the double Gamow-Teller transitions using the shell model approach
Authors: Auerbach Naftali , Bui Minh-Loc
Published: November 2018

The double Gamow-Teller strength distributions in the lightest double beta-decay candidate 48Ca and its isotope 46Ca were calculated using the nuclear shell model by applying the single Gamow-Teller operator two times sequentially on the ground state of parent nucleus. The nuclear matrix element of the double Gamow- Teller transition from the ground state to the ground state that goes into the double beta decay calculation was shown as a small fraction of the total transition.
Isoscalar and isovector spin responses in p-shell and sd-shell nuclei
Authors: Sagawa Hiroyuki , Suzuki Toshio
Published: November 2018

We study the spin magnetic dipole transitions in sd-shell even-even nuclei with N=Z and a p-shell nucleus 12C by modern shell model calculations. The shell model wave functions take into account enhanced isoscalar (IS) spin-triplet pairing as well as the effective spin operators. We point out that the IS pairing and the effective spin operators give a large quenching effect on the isovector (IV) spin transitions to be consistent with observed data by (p, p′) experiments. On the other hand, the observed IS spin strengths do not show large quenching effect suggested by the calculated investigation. The IS pairing gives a substantial quenching effect on the spin magnetic dipole transitions, especially on the IV ones.
Realistic shell model description of beta decay
Authors: Gargano Angela , Coraggio Luigi , De Angelis Luca , Fukui Tokuro , Itaco Nunzio
Published: November 2018

In this paper, we extend our previous realistic shell-model study of Gamow-Teller strengths and double-β decay properties for nuclei around 132Sn to lighter mass nuclei. The effective shell-model Hamiltonian and transition operators are microscopically derived by way of many-body perturbation theory, without resorting to empirical parameters. Our main aim is to further check the reliability of our approach and verify its stability in other mass regions. Calculated energy spectra as well as electric-quadrupole and β-decay properties are presented for 76Ge and 82Se and compared with the experimental data, together with some results for 130Te and 136Xe already reported in our previous paper. Finally, some preliminary results of nuclear matrix elements responsible for the neutrinoless double beta decay, calculated by using the bare operator, are shown.
Two-phonon structures for beta-decay theory
Authors: Severyukhin A.P. , Arsenyev N.N. , Borzov I.N. , Nazmitdinov R.G. , Åberg S.
Published: November 2018

The β-decay rates of 60Ca have been studied within a microscopic model, which is based on the Skyrme interaction T45 to construct single-particle and phonon spaces. We observe a redistribution of the Gamow–Teller strength due to the phonon-phonon coupling, considered in the model. For 60Sc, the spin-parity of the ground state is found to be 1+. We predict that the half-life of 60Ca is 0.3 ms, while the total probability of the βxn emission is 6:1%. Additionally, the random matrix theory has been applied to analyze the statistical properties of the 1+ spectrum populated in the β-decay to elucidate the obtained results.
Damping parameters of charge-exchange giant monopole resonances within a semi-microscopic approach
Authors: Kolomiytsev Georgy , Gorelik Mikhail , Urin Mikhail
Published: November 2018

The recently proposed semi-microscopic approach, which consists in incorporating the “Coulomb description” of isospin-forbidden processes into the particle-hole dispersive optical model, is implemented to evaluate the main damping parameters of charge-exchange giant monopole resonances (including isobaric analog resonances) in medium-heavy spherical nuclei. The calculation results obtained for the 208Pb and 209Pb parent nuclei are compared with available experimental data.
Pygmy and giant resonances: connecting the nuclear structure to stellar astrophysics
Authors: Tsoneva Nadia
Published: November 2018

Systematic theoretical investigations of dipole response in neutron-rich nuclei of importance for day-one photonuclear experiments at ELI-NP are presented. The calculations are performed in advanced mi- croscopic theory based on energy-density functional and three-phonon quasiparticle-phonon model. The model basis accounts for a large range of nuclear excitations with different spin and parity. In the focus of the studies are electric and magnetic dipole modes with energies up to 25 MeV. Of special interest are pygmy dipole and giant dipole resonances. The impact of different low-energy excitations and in particular of the PDR on radia- tive neutron-capture reaction cross sections in nuclei of key importance for nucleosynthesis is investigated.The obtained results are compared to available experimental data.
Examples of dynamic chirality in nuclei
Authors: Yavahchova M.S. , Tonev D. , Goutev N. , de Angelis G. , Bhowmik R.K. , Singh R.P. , Muralithar S. , Madhavan N. , Kumar R. , Kumar Raju M. , Kaur J. , Mahanto G. , Singh A. , Kaur N. , Garg R. , Sukla A.
Published: November 2018

In many cases the chirality was almost observed but the transition probabilities are different. This fact is clearly seen in the cases of 134Pr and 102Rh. In the case of chirality, the yrast and the side bands should be nearly degenerate. In the angular momentum region where chirality sets, the B(E2) values of the electromagnetic transitions deexciting analog states of the chiral twin bands should be almost equal. Correspondingly the B(M1) values should exhibit staggering. Our lifetime measurements in the cases of 134Pr and 102Rh and the theoretical analysis do not support static chirality. Chirality has mainly a dynamical character in both nuclei. In the present paper, we compare our results with the results for other chiral candidate nuclei, which fulfill static chirality conditions.
Container evolution and dynamics of cluster formation
Authors: Funaki Yasuro
Published: November 2018

We introduce the so-called Tohsaki-Horiuchi-Schuck-Röpke (THSR) wave function to describe various nuclear cluster states. Its importance, applicability, and usefulness are extensively discussed in this report. It is demonstrated that the THSR wave function provides a “container” picture for cluster structures and even an evolution of the container, for a couple of typical examples, such as 20Ne, 12C, and 16O nuclei.
The cluster states in light nuclei
Authors: Burtebayev N. , Janseitov D.M. , Kerimkulov Zh. , Mukhamejanov Y. , Nassurlla M. , Valiolda D.S. , Demyanova A.S. , Danilov A.N. , Starostin V.
Published: November 2018

The differential cross-sections of the elastic and inelastic α +11B scattering was measured at E(α) = 29 MeV. The analysis of the data by Modified Diffraction Model (MDM) showed that the root-mean- square (RMS) radius of the 11B state 3/2-, E* = 8.56 MeV is ~ 0.5 fm larger than that of the ground state. It is found that the radius of 3/2- (8.56 MeV) state in the 11B nucleus is close to the radii of the Hoyle state in 12C.
Charge/mass yields in the fission of highly excited heavy actinides
Authors: Paşca H. , Andreev A.V. , Adamian G.G. , Antonenko N.V.
Published: November 2018

The charge (mass) distributions of fission fragments resulting from low- and high-energy fission of the isotopes of Fm and No are studied with the statistical scission-point fission model. The calculated results are compared with the available experimental data. The transformation of the shape of the charge distribution with increasing isospin and excitation energy occurs gradually. At some critical excitation energy the the saturation of the symmetric component of the charge (mass) yield is demonstrated.
Isospin effects on reaction dynamics at Fermi energies
Authors: Politi Giuseppe , Acosta Luis , Andrés Maria Victoria , Auditore Lucrezia , Beck Christian , Cap Tomasz , Cardella Giuseppe , Catara Francesco , Colonna Maria , De Filippo Enrico , D'Onofrio Antonio , Geraci Elena , Gnoffo Brunilde , Kalandarov Shuhrat , La Commara Marco , Lanza Edoardo G. , Lanzalone Gaetano , Maiolino Concettina , Martorana Nunzia Simona , Pagano Angelo , Pagano Emanuele Vincenzo , Papa Massimo , Piasecki Erik , Pirrone Sara , Quattrocchi Lucia , Rizzo Francesca , Russotto Paolo , Santonocito Domenico , Siwek-Wilczynska Krystyna , Trifirò Antonio , Trimarchi Marina , Vitturi Andrea
Published: November 2018

The study of nuclei properties and of collision dynamics is a very active research field whose result have implications in different domains as for example astrophysics. The present and future facilities delivering radioactive ion beams with high intensity allow to extend these studies in the region far from the stability valley. New insight has thus been found on the effects of neutron richness on reaction mechanisms as well as on nuclear structure and nuclear matter properties, as for instance, the role of symmetry energy term of the nuclear Equation of State. The presence of diverse reaction products demands for highly performing and very specialized devices, also able to disentangle among different mechanisms, from fast dynamical processes to statistical emission from equilibrated sources. Numerous studies of the effects of N/Z ratio on fusion and associated processes can be found at different energies, together with many examples of the influence of neutron richness on the reaction time scale and the competition between equilibrated and prompt processes. A survey of very recent findings obtained with the CHIMERA and FARCOS devices is presented.
Accelerator driven system for transmutation and energy production
Authors: Zhivkov Petar , Stoyanov Chavdar , Furman Walter
Published: November 2018

The significant quantities of highly radiotoxic long-lived nuclear waste necessitate the research of methods of their transmutation to short-lived ones. This can be achieved by interaction between nuclear waste and neutrons (n,xn)-reactions and radiative captive). The ADS (Accelerator Driven System) is the most promising tool for such transmutation. ADS consists of powerful high energy accelerator irradiating a target of heavy nuclei: uranium, thorium, lead and bismuth. Inside of the target is generated a high-energy neutron field. Several ADS constructions for waste transmutation and energy production are considered. The influence of the cooling system on the neutron flux and the energy production in ADS are investigated. The radiation and biological protection are also discussed.
How to produce accurate inelastic cross sections from an indirect measurement method?
Authors: Kerveno Maëlle , Henning Greg , Borcea Catalin , Dessagne Philippe , Dupuis Marc , Hilaire Stéphane , Negret Alexandru , Nyman Markus , Olacel Adina , Party Eliot , Plompen Arjan
Published: November 2018

Inelastic reactions ((n,xn) for x ≥ 1) play a key role in reactor cores as they influence the slowing down of the neutrons. A reactor neutron energy spectrum depends thus on this process which is in strong competition with elastic scattering and fission; a nice example is the case of 238U. Inelastic scattering (x = 1) impacts keff and radial power distribution in the nuclear reactor. For several years, it has been shown that the knowledge of the inelastic cross sections in nuclear databases is not good enough to accurately simulate reactor cores and a strong demand for new measurements has emerged with very tight objectives (only a few percent) for the uncertainties on the cross section. To bypass the well-known experimental difficulty to detect neutrons, the prompt γ-ray spectroscopy method is a powerful but indirect way to obtain inelastic cross sections. Our collaboration has used this method for more than ten years and have produced a lot of (n,n′γ) cross sections for nuclei from 7Li to 238U. In this article, we will first discuss the issues of the prompt γ-ray spectroscopy regarding the control of all the uncertainties involved in the (n,n′γ) cross section estimation. Secondly, we will focus on the role of theoretical modeling which, in certain cases, is crucial to reach the objectives of a few percent uncertainty on the (n,n′) cross sections.
Uncertainty quantification works relevant to fission yields and decay data
Authors: Chiba Go , Nihira Shunsuke
Published: November 2018

In the present paper, firstly, we review our previous works on uncertainty quantification (UQ) of reactor physics parameters. This consists of (1) development of numerical tools based on the depletion perturbation theory (DPT), (2) linearity of reactor physics parameters to nuclear data, (3) UQ of decay heat and its reduction, and (4) correlation between decay heat and β-delayed neutrons emission. Secondly, we show results of extensive calculations about UQ on decay heat with several different numerical conditions by the DPT-based capability of a reactor physics code system CBZ.
Production and use of nuclear parameter covariance data: an overview of challenging cross cutting scientific issues
Authors: Salvatores Massimo , Palmiotti Giuseppe
Published: November 2018

Nuclear data users’ requirements for uncertainty data started already in the seventies, when several fast reactor projects did use extensively “statistical data adjustments” to meet data improvement for core and shielding design. However, it was only ∼20–30 years later that a major effort started to produce scientifically based covariance data and in particular since ∼2005. Most work has been done since then with spectacular achievements and enhanced understanding both of the uncertainty evaluation process and of the data utilization in V&V. This paper summarizes some key developments and still open challenges.
A study of the construction of the correlation matrix of 241Pu(nth,f) isobaric fission yields
Authors: Julien-Laferrière Sylvain , Chebboubi Abdelaziz , Kessedjian Grégoire , Serot Olivier
Published: November 2018

Two blind analyses for 241Pu(nth,f) isobaric fission yields have been conducted, one analysis using a mix of a Monte-Carlo and an analytical method, the other one relying only on analytical calculations. The calculations have been derived from the same analysis path and experimental data, obtained on the LOHENGRIN mass spectrometer at the Institut Laue-Langevin. The comparison between the two analyses put into lights several biases and limits of each analysis and gives a comprehensive vision on the construction of the correlation matrix. It gives confidence in the analysis scheme used for the determination of the fission yields and their correlation matrix.
Covariance analysis for total neutron cross sections based on a microscopic optical model potential
Authors: Xu Ruirui , Ge Zhigang , Liu Tingjin , Zhang Yue , Tao Xi , Zhang Zhi
Published: November 2018

The deterministic simple least square (LS) approach is employed in the covariance analysis of the total neutron cross section (n,tot) calculated by a microscopic optical potential, CTOM, which is based on a fundamental theory − Dirac Brueckner Hartree Fock. The sensitivity to the CTOM parameters is firstly systematically calculated for 77 stable nuclei in the range 12C–208Pb within neutron energy 5–200 MeV. Then, an equivalent covariance of experimental data (EVexp) is constructed to describe the experimental data uncertainties and the systematic difference between experimental data and CTOM calculation. The variance and covariance of EVexp matrix are both evaluated via the Gaussian analysis to the ratios of measured (n,tot) cross sections and the CTOM calculations. In addition, a technique named “selection of effective points (SEP)” is suggested additionally to reduce the influence of the Peelle's Pertinent Puzzle problem in this work.
Molecular Dynamics Analysis of SiC Single Crystal Materials
Authors: Li Wei
Published: November 2018

SiC is modeled as a new generation of semiconductor materials because of its excellent properties. The 6H-SiC is modeled by Materials Studio. The band and state density of 6H-SiC are analyzed. In addition, 6H-SiC Substrate, the AL element doping, from the microscopic mechanism, analyzed the 6H-SiC semiconductor conductivity.
Research on the Design Method of the Starting Process of Main Fuel Control system for Aviation Auxiliary Power Unit
Authors: Guo Yanan , Fan Ding , Peng Kai , Tian Fang
Published: November 2018

This paper analyzed the main fuel control system of the auxiliary power unit (APU), explored the starting process of the main fuel flow control system control law and control algorithm. Focus on analyzing the interpolation table that is involved in the controller of the starting process, restoring its physical meaning. The design method of the main fuel flow controller for the starting process of the APU is summarized. It’s a valuable reference for the future design of the control system of both aero-engine and auxiliary power unit.
La2MgNi7.5Co1.5 Hydrogen Storage Alloy Prepared by the Magnetic Field Assisted Sintering
Authors: Yang Feng , Li Hong , Liu Jing
Published: November 2018

La2MgNi7.5Co1.5 hydrogen storage alloy was prepared by magnetic field assisted sintering method. The phase structure and hydrogen absorption properties of the alloy were systematically studied by means of isothermal constant volume method, XRD, SEM, EDS and HPDSC etc. The results showed that the main phase is PuNi3 type structure of (La, Mg) (Ni, Co)3. The impure phase La (Ni, Co)5 decreased firstly and increased later with the magnetic field increased. Addition of Co can improve the hydrogen absorption and desorption properties of the alloy obviously, the maximum hydrogen storage capacity reached 1.538 wt.%. The dehydrogenation DSC curve of the alloy has a multimodal characteristics. The magnetic field changed hydrogen desorption thermal behavior of (La, Mg)(Ni, Co)3 phase significantly. The alloy after activation showed excellent hydrogen absorption and desorption kinetics performance.
Artificial Intelligence and Modern Home Design
Authors: Song Jialu , Li Yifei
Published: November 2018

With the development of economy and technology and the continuous development of scientific and technological intelligence equipment, artificial intelligence has begun to enter modern home design. Artificial intelligence can greatly reduce the daily operating time and energy cost and promotes the optimization of life quality. If we say artificial intelligence’s engagement in modern home design is an irreversible trend, and the living interest of people is changed gradually by machine, intelligence emotion replaces gradually, this is perhaps a double-edged sword. The purpose of this paper is to identify the advantages of artificial intelligence application in modern home design and reflect upon its disadvantages of artificial intelligence, and look out on the prospects of the future of artificial intelligence.
Based on PCI Software Day Draw Satellite is Projective Like Making Technology Discussed in This Paper
Authors: Zhao Ming , Wang Rui , Xu Yongming , Xu Xiaochun
Published: November 2018

This article introduces the use of PCI software production day draw satellite is projective like production process, analyzes the key technologies in the production, summarizes the Suggestions to improve the quality of results, strengthen quality control method is proposed, for the day draw satellite orthogonal projection as mass production work has carried on the beneficial exploration.
Selection of Cold Chain Logistics Distribution Center Location Based on Improved Genetic Algorithm
Authors: Lu Jianchang , Zhao Yaxin
Published: November 2018

With the rapid development of food refrigeration and freezing technology, food cryogenic storage and vehicle transportation scheduling technology, the cold chain logistics industry has entered a period of rapid development. According to the problem of urban cold chain distribution route, based on the vehicle distribution model with time window, the minimum cost of transportation, cost of energy, cost of goods, penalty cost is the objective function, and the urban cold chain logistics distribution path is established. Optimized mathematical model. According to the actual case, the analysis of the cold chain distribution model is carried out by using the analytical genetic algorithm, and the optimal combination of the distribution paths with the lowest total cost is obtained, which has certain reference significance for the urban cold chain logistics distribution route problem.
An Automated Deployment Engine Based on a PaaS Cloud Platform of the Micro-service Architecture System
Authors: Zhong Chen , Yuan Xin , Yang Jun
Published: November 2018

In view of the deployment management problems caused by the service atomization, architecture complexity and large-scale cluster of micro-service architecture system, a PaaS cloud platform automation deployment engine is designed and implemented based on the Docke PaaS platform so as to provide a simple, flexible, efficient, full-stack, full-process deployment solution to the micro service architecture system.
The Design of Intelligent Speech Walking Stick Based on GPS
Authors: Wang Yuge , Long Ling
Published: November 2018

With the development of society and the progress of science and technology, the traditional walking stick has been unable to meet the needs of modern walking stick users. Based on this, we developed the intelligent speech navigation walking stick design based on GPS and GSM, supplemented by the functions of ultrasonic obstacle avoidance, night warning and emergency assistance. This walking stick can help the blind walk on the road independently. Moreover, when the user cannot distinguish the road information, the walking stick can realize the real-time voice navigation function in the region, so as to solve the problem that the user cannot independently find the road information.
Study on a Kind of Simulation Training System of Photoelectric Theodolite
Authors: Hu Changde , Li Yongqiang , Geng Huafang , Liu Jianqiang
Published: November 2018

A kind of system of target simulation training of photoelectric theodolite is presented. On the basis of the experiment duties, almost 40 operation courses are set according to five modules, which are equipment operation, parameter testing, maintaining, troubleshooting and task flow. Modeling strategy of several kinds of aircraft track is studied and set. The modeling and controlling of the key parts of photoelectric theodolite are achieved with the software of UG and Unity3D. Then the fault waveform of the equipment failure is completed by the soft LabVIEW. With the software Eduis, the multimedia of the operation courses are done. Then scientific and reasonable assessment model is studied and set to evaluate the operation of the trainees. Finally, with the examples of the trainees exams and troops using, it shows the system of target simulation training of photoelectric theodolite meets the requirements.
Trade-off Analysis between the Indexes of Cultivated Land Health Evaluation
Authors: Shan Mei , Wang Xun
Published: November 2018

Cultivated land is the basis for the survival and development of human society. The selective utilization of human factors and the level of utilization are the decisive factors to promote the external performance of cultivated land. The quality components of cultivated land in different regions have their own characteristics, and the external performance is different. This paper analyzed the China southern city of major grain producing areas of cultivated land within the health influence of constituent elements and characteristics of the relationship between each other, there are dominant factors to find the current utilization level under the influence of the external manifestations of the health of cultivated land, but also conducive to the area of cultivated land ecological function of human selective use, finally get maximum benefit of land use, the best function cultivated land.
Research on Product Design Guided by Museum Heritage
Authors: Li Minfang , Li Minyan
Published: November 2018

This article looks for some cultural elements from the collection of exquisite cultural relics to inherit and carry forward the spirit and culture expressed in the historical society. The cultural creative products designed in this paper are divided into stone carving series, tile series, bronze series and others. Each cultural and creative product has a text introduction, according to the existing modeling characteristics of cultural relics, the paper try to use the scene in the life practice. These measures are not only a form of development, but also inherit the history behind the collection of cultural relics.
The Computational Method of Evaluation Range for Reserves of Mineral Deposits Covered with Surface Buildings
Authors: Han Bing , Fu Qiang
Published: November 2018

Research on the proper method to make sure the evaluation range of mineral deposits covered with surface buildings plays an important role in reducing occupation of important mineral deposits and ensuring smooth implementation of building engineering. The criterion of certainty of evaluation range for mineral deposits covered with surface buildings is presented, the vertical plane method is adopted to calculate the frontiers of obstructive ridges on account of the mineral traveling angles which indicate the permitted values of groud deformation. The evaluation range of mineral deposits covered with the complanation engineering and linearity engineering are studied by means of examples. The research conclusion can offer some lessons for routing optimum design of construction object or mineral property reparation.
Application of Improved Eclat Algorithm in Students’ Evaluation of Teaching
Authors: Dou Yuzi , Fei Xiwei , Zhu Rui , Gao Tianzhu , Wu Yanbing , Ma Lei
Published: November 2018

The evaluation system of students is to find a way to solve the status way according to the exact needs of students and the teaching requirements of teachers, so as to improve the teaching level of teachers and improve the quality of school education. This paper uses the real evaluation sample and uses the data mining association rule algorithm to comprehensively analyze the massive data of the evaluation data and the basic information of the teacher. The purpose is to obtain the association rules between the teacher’s comprehensive information and its evaluation results. Using the evaluation data to explore its core issues. In this paper, the Eclat algorithm of association rules improves the problem of insufficient memory and occupying a large amount of time when searching for frequent itemsets in the data. The breadth-first algorithm is added to save operation time and improve the efficiency of the algorithm. The effectiveness of the improved algorithm is verified by comparative experiments and applied to the evaluation system so as to provide suggestions for the professional development of teachers from an objective perspective, and to build a harmonious, "people-oriented" evaluation system for students.
Study on the Surveillance System of Water Stage Used the Resonator Pressure Transducer and Wireless Connectivity
Authors: Han Bing , Fu Qiang
Published: November 2018

For the sake of ameliorating the faultiness of low precision for conventional surveillance methods of water stage, and realize the goal of real time data collection, automated actions and long-distance conveying, we have designed a novel surveillance system of water stage with the resonator pressure transducer and wireless connectivity technologies. The surveillance system of water stage has come into service in a field experiment project of a certain oil and gas pipeline engineering. By analyzing and comparing the results of experiments, the system has the merits of high agility, reliability, instantaneity and accuracy, low cost, capacity of resisting disturbance, which making it ideal for use in unattended supervising of water stage for multi-spots observation based on regional scale. The surveillance system can well satisfy the actual demand of auto hydrogeological parameters monitoring for geotechnical engineering.
Study on Senile Driver Situational Awareness Model
Authors: Ma Yanyang , Liu Yulei
Published: November 2018

Along with the progress of the medical and living standards, the proportion of older people is rising, and at the same time in a wave of reform of Internet technology, on-board information technology changes with each passing day, in a variety of elderly drivers perceive situations, from the equipment situation, environmental situation, vehicle-mounted scenario system situation, combined with the on-board task main driving, information and communication, interaction and so on in interactive entertainment situation perception model.
Integration Application of 8K Ultra HD Video and DMS Audio Broadcast System
Authors: Song Jinbao , Guo Chong , Xin Xin , Wu Xiaoguang
Published: November 2018

In recent years, people’s demand for audio and video playback quality has gradually increased. High definition video and high reduction audio are two important index. The 8K ultra-high-definition television broadcasting system was developed by Beijing HeXinChenGuang Information Technology Co., Ltd. It can broadcast ultra-high-definition uncompressed video signals with a bandwidth of 8GB/s and a resolution of 7680×4320. The Dynamic Matrix Sound (DMS) is a new multi-channel pickup system based on the principle of sound field optimization and the Huygens principle. DMS is developed by the Key Laboratory of Media Audio Education of the Communication University of China. This paper proposes a communication method that integrates the above two systems. It mainly describes an application layer protocol based on User Datagram Protocol (UDP). It focuses on the message distribution and message transmission mechanism of the protocol. The operating conditions can achieve synchronous playback of 8K ultra-high-definition video and DMS audio. The integration application of 8K ultra HD video and DMS audio broadcast system is realized.
Research on Smart Home System Based on SC2440 and ZIGBEE Protocol
Authors: Gong Lanfang
Published: November 2018

This paper realizes the remote management and wireless transmission of smart home system adopting ARM technology and ZigBee protocol, and proposes a design scheme combining S3C2440A processor and ZigBee wireless technology, Web technology, ZigBee wireless network technology and Internet communication technology. It realizes the real-time monitoring and management of the intelligent home system remotely based on real Internet of things, and improves the comfort, convenience and security of the home living environment.
Research on Cultivated Land Change Based on GIS and High Resolution Remote Sensing Images
Authors: Yu Haibo
Published: November 2018

This paper study an automatic monitoring method for land change based on high resolution remote sensing images and GIS data, and we use three classification methods to classify and fuse the research area. Secondly, the paper calculates the corresponding map class components and compares them with their historical attributes; it can automatically monitor land use change. The experimental results show that the fuzzy decision fusion classification can significantly improve the classification effect, and it can accurately determine the change area accurately and automatically. However, there are some partial errors in the region.
A Study on a Single-Phase HTS Transformer with a Cylindrical Central Iron Core
Authors: Yin Meiying , Zhao Yong , Li Zhuyong , Li Xingmei , Yin Wenzhao , Duan Lan , Wang Zihong , Zhao Feng , Han Bin
Published: November 2018

During the past decade, a number of high temperature superconducting (HTS) transformer prototypes have been designed, and the majority of them are full-core transformers and air-core transformers. However, in this study, we proposed a new type of HTS transformer, where the iron core is different in that the limbs and connecting yokes are absent. To investigate the performance of this type of HTS transformer, we design and fabricate a single-phase HTS partial core transformer prototype using the secondary generation (2G) HTS GdBCO wires. The iron core is at room temperature, and the windings are immersed in liquid Nitrogen. The structures of primary and secondary windings are three layers connected in series and nine double pancakes connected in parallel, respectively. Fundamental characteristics are obtained by standard short-circuit, no-load and load tests in liquid Nitrogen temperature of 77 K. In addition, an equivalent circuit of the HTS transformer is proposed to analyze the characteristic of the transformer. The calculated values based on the equivalent circuit are consistent with that of experiment. The detailed results about the design of the HTS partial-core transformer, the experiment, and the equivalent circuit are presented and discussed in this study.
Design of Fuzzy PID Temperature Control System
Authors: Xie Guokun , Zheng Kai , Jia Yajuan
Published: November 2018

Temperature plays an important role in daily life, industry production and scientific experimentation. However, because of the multi characteristics of nonlinearity, large lag, and time-varying of control objects, there will be great difficulties in establishing accurate mathematical models with mathematical methods. In order to achieve well controlling effects, this paper proposes a mature controlling system. This system combines PID algorithm and fuzzy control to design a fuzzy PID intelligent controller, which could process complex data and complex systems simultaneously. The high flexibility of fuzzy control and the high precision of PID control of this system could solve the influence of large inertia and interference of the temperature control system. This design will adopt the STC89C52 MCU as the main control core. Meanwhile, the fuzzy PID controller are combined with fuzzy control and PID control to control the temperature. In this paper, we first introduce the hardware composition of PID temperature control system. Secondly, we use proteus to build the general circuit diagram, and then use KEIL software to program again. Finally, we simulate the system and analyze the simulation results by the simulink module in MATLAB, and finally achieve the expected results.
Decision Model of Aero-Engine Design Integration Platform Implementation Solution Selection Based on Number Interval Number with Priority Order
Authors: He Ying , Xiu Rui
Published: November 2018

Considering the fuzzy factors in the aero-engine design integration platform implementation solution selection, using the prioritized interval number evaluation method, the implementation model of the aero-engine design integration platform implementation solution selection is established, and the priority relationship is calculated according to the relative distance between each attribute and the ideal point. Through the calculation of the relative distance between the interval value and the negative ideal point, the single evaluation value is obtained. Finally, the comparison result of the pre-selected scheme is obtained by analysing and solving the preferred model. The model comprehensively considers the determining factors in the optimization process and uncertain factors, clear logic, and the best results obtained are comprehensive and reasonable.
Research on the Grey Correlation Analysis of the Norm in Choosing Key Factors of Aero-engine Design Integration System
Authors: He Ying , Xiu Rui
Published: November 2018

The key influencing factor of accurate positioning aerospace design integration system is the basis of successful construction of design architecture integration platform. Normal grey relational analysis has better approximation than general grey relational analysis. The article analyses the effects of grey correlation analysis and aero-engine design integration system, and then based on t norm grey correlation analysis, determine the key influence factors of aerospace design integration system, a more true and accurate result is obtained.
Design and Application of Versatile Automatic Bin with Valve Splint Slide Way
Authors: Zhao Lei , Zhang Hua , Yin Jie , Chen Hua
Published: November 2018

A versatile modular automatic bin is designed for the valve processing and manufacturing industry, which can realize the functions of orderly storage, single separation, on-demand feeding and so on. It can also be combined with different types of manipulator to form an automatic loading and unloading workstation for each step of the valve fabrication to replace manual production. Targeting the real applications and conditions, in this work, the design requirements of silos are analyzed and the overall structure is designed. Experiments on the key component of the slide way are also carried out. Based on the data, the optimal inclination angle is determined. Besides, the material mechanism, the feeding mechanism and the pneumatic system are introduced in detail. Finally, the case study on the valve production enterprise is provided.
VRRP Load Balance Technology Simulation Practice Based on GNS3
Authors: Geng Qiang , Huang Xueqin
Published: November 2018

This paper introduced the working principle of VRRP Load Balance Technology and technical detail. Through simulation software GNS3 it constructed the Load Balance network, and configured the VRRP technology, which causes the different local area network to data flow load balance through the VRRP technology, when a single point of failure occurs, the gateway can be migrated adaptively without affect the normal use of the network. It provides a flexible and effective solution to implement the load balance lab environment.
Material Cost Advantage and Development of Small Printing Industry: Based on the Case of Xinhua Phenomenon
Authors: Wu Lei , Zheng Fengtian
Published: November 2018

Based on the survey of small printing industry in Beijing, Xi’an and Zhengzhou, this paper analyses the development of Xinhua Phenomenon as one case of Rural Migration Entrepreneurship and find that group culture is an important factor to promote the development of Xinhua Phenomenon. Through the econometric analysis, the research finds that Xinhua printing group offers better services than non-Xinhua group to gain the material cost advantage and promote the development of Xinhua Phenomenon.
The Influence of Pretreatment on the Preparation of Fuel Ethanol from Corn Stalk
Authors: Wang Yanfei , Xu Rui , Heng Yuanyuan , Lu Xiao , Liang Gaofei , Zeng Jin , He Jun
Published: November 2018

In this research, the effects of three different pretreatment methods, physical pulverizing, steam blasting and hydrogen peroxide oxidizing, on ethanol preparation from corn straw were compared. The results showed that the content of reducing sugar in corn straw briquette with grinding and steam blasting pretreatment were 2 and 1.5 times higher than that without pretreatment. In the final product, the concentration of ethanol and rate of alcohol increased about 3.8 and 2 times, respectively. Besides, the reducing sugar content, ethanol content and alcohol yield in corn stalks soaked in hydrogen peroxide were 7 times higher than the untreated. The cellulose can be effectively isolated after being soaked in hydrogen peroxide with a concentration of 2.5% for 72 hours, as well as better degradation of lignin and hemicellulose. The amount of ethanol and the yield of alcohol were 1.9 and 3.3 times higher than physical pulverization and steam blasting. In brief, it is declared that hydrogen peroxide pretreatment can easily destroy the lignocellulosic cellulose of maize straw and improve the conversion rate of cellulose, which might be beneficial for the production of fuel ethanol.