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Effects of Phase Damping on Controlled Teleportation of a Qubit by a GHZ State

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Communications in Theoretical Physics 2008年第4期49卷 895-900页

作者： HAN xiao-ping liu Jin-Ming State Key Laboratory of Precision Spectroscopy Department of Physics East China Normal University Shanghai 200062China

We investigate controlled teleportation ofa qubit via a GHZ state with the influence of phase damping in the Bloch sphere representation. We use the average trace distance to describe how close the output state is to the input state to be teleported. Our results show that the average trace distance is a function of decoherence rates and angles of the analyzer performed by the controller in the single-particle projective measurement. Moreover, for a fixed value of the decoherence rate, one can adjust the analyzer angle to achieve the optimal average trace distance.

关键词： controlled teleportation GHZ state phase damping trace distance

Spheroidization of molybdenum powder by radio frequency thermal plasma

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International Journal of Minerals,Metallurgy and Materials 2015年第11期22卷 1212-1218页

作者： xiao-ping liu Kuai-she Wang ping Hu Qiang Chen Alex A.Volinsky School of Metallurgical Engineering Xi'an University of Architecture & Technology Metallurgical Engineering Research Center of Shaanxi Province State Technical Center Jinduicheng Molybdenum Co.Ltd Department of Mechanical Engineering University of South Florida

To control the morphology and particle size of dense spherical molybdenum powder prepared by radio frequency（RF） plasma from irregular molybdenum powder as a precursor, plasma process parameters were optimized in this paper. The effects of the carrier gas flow rate and molybdenum powder feeding rate on the shape and size of the final products were studied. The molybdenum powder morphology was examined using high-resolution scanning electron microscopy. The powder phases were analyzed by X-ray diffraction. The tap density and apparent density of the molybdenum powder were investigated using a Hall flow meter and a Scott volumeter. The optimal process parameters for the spherical molybdenum powder preparation are 50 g/min powder feeding rate and 0.6 m^3/h carrier gas rate. In addition, pure spherical molybdenum powder can be obtained from irregular powder, and the tap density is enhanced after plasma processing. The average size is reduced from 72 to 62 μm, and the tap density is increased from 2.7 to 6.2 g/cm^3. Therefore, RF plasma is a promising method for the preparation of high-density and high-purity spherical powders.

关键词： powder materials molybdenum radio frequency plasma spheroidization processing parameters

Multi-class classification method for strip steel surface defects based on support vector machine with adjustable hyper-sphere

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Journal of Iron and Steel Research International 2018年第7期25卷 706-716页

作者： Mao-xiang Chu xiao-ping liu Rong-fen Gong Jie Zhao School of Electronic and Information Engineering University of Science and Technology Liaoning Anshan 114051 Liaoning China Department of Electrical Engineering Lakehead University Thunder Bay P7B 5E1 ON Canada State Key Laboratory of Robotics and System (HIT) Harbin 150001 Heilongjiang China

Focusing on strip steel surface defects classification, a novel support vector machine with adjustable hyper-sphere （AHSVM） is formulated. Meanwhile, a new multi-class classification method is proposed. Originated from support vector data description, AHSVM adopts hyper-sphere to solve classification problem. AHSVM can obey two principles： the margin maximization and inner-class dispersion minimization. Moreover, the hyper-sphere of AHSVM is adjustable, which makes the final classification hyper-sphere optimal for training dataset. On the other hand, AHSVM is combined with binary tree to solve multi-class classification for steel surface defects. A scheme of samples pruning in mapped feature space is provided, which can reduce the number of training samples under the premise of classification accuracy, resulting in the improvements of classification speed. Finally, some testing experiments are done for eight types of strip steel surface defects. Experimental results show that multi-class AHSVM classifier exhibits satisfactory results in classification accuracy and efficiency.

关键词： Strip steel surface defect Multi-class classification Supporting vector machine Adjustable hyper-sphere

The Influence of the Renormalization Condition to the Equation of State of the Nuclear Matter

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Communications in Theoretical Physics 2001年第7期36卷 65-70页

作者： CHEN Wei AI Bao-Quan ZHENG xiao-ping liu Liang-Gang Department of Physics Zhongshan University Guangzhou 510275 China Department of Physics Zhongshan University Guangzhou 510275 China Department of Physics Zhongshan University Guangzhou 510275 China Department of Physics Zhongshan University Guangzhou 510275 China

In the relativistic σ-ω model, the influences of the parameters b, c, d in the potential U(σ) = (1/2!)bo2 -+-(1/3!)cσ3+(1/4!)dσ4 to the incompressibility, effective mass and binding energy of the nuclear matter are studied in *** calculation of equation of state of nuclear matter shows that the values of b, c, d depend on the renormalization condition, we also find that a soft equation of state of nuclear matter can be obtained in a suitable renormalization condition, and the experimental incompressibility coefficient can be reproduced. These results are also used to study the thermal properties of hot A-resonant nuclear ***-interaction of σ meson, renormalization, hot and dense hadronic matter

关键词： equation of state,

End-point dynamic control of basic oxygen furnace steelmaking based on improved unconstrained twin support vector regression

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Journal of Iron and Steel Research International 2020年第1期27卷 42-54页

作者： Chuang Gao Ming-gang Shen xiao-ping liu Nan-nan Zhao Mao-xiang Chu School of Materials and Metallurgy University of Science and Technology LiaoningAnshan 114051LiaoningChina School of Electronic and Information Engineering University of Science and Technology LiaoningAnshan 114051LiaoningChina School of Information and Electrical Engineering Shandong Jianzhu UniversityJinan 250101ShandongChina

In order to improve the end-point hit rate of basic oxygen furnace steelmaking,a novel dynamic control model was proposed based on an improved twin support vector regression *** controlled objects were the end-point carbon content and *** proposed control model was established by using the low carbon steel samples collected from a steel plant,which consists of two prediction models,a preprocess model,two regulation units,a controller and a basic oxygen *** test results of 100 heats show that the prediction models can achieve a double hit rate of 90%within the error bound of 0.005 wt.%C and 15℃.The preprocess model was used to predict an initial end-blow oxygen ***,the double hit rate of the carbon con tent and temperature only achieves 65%.Then,the oxygen volume and coolant additi ons were adjusted by the regulation units to improve the hit ***,the double hit rate after the regulation is reached up to 90%.The results indicate that the proposed dynamic control model is efficient to guide the real production for low carbon steel,and the modeling method is also suitable for the applications of other steel grades.

关键词： Steelmaking Basic oxygen furnace End-point control Twin support vector regression Wavelet transform

Gauge Transformation and Constraint Induced Operator Ordering for Charged Rigid Planar Rotator in Uniform Magnetic Field

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Communications in Theoretical Physics 2006年第5X期46卷 843-844页

作者： LAI Mei-Mei WANG Xin xiao Yan-ping liu Quan-Hui School for Theoretical Physics and Department of Applied Physics Hunan University Changsha 410082 China

When the motion of a particle is constrained, excess terms exist using hermitian form of Cartesian momentum pi （i=1, 2,3） in usual kinetic energy （1/2/μ）∑ pi^2 , and the correct kinetic energy turns out to be （1/2μ） ∑1/ fipi f ipi, where fi are dummy factors in classical mechanics and nontrivial in quantum mechanics. In this paper the explicit form of the dummy functions fi is given for a charged rigid planar rotator in the uniform magnetic field with different gauge chosen. Under different gauges, we have different sets of dummy factors. It means that these factors do not have direct observable effect.

关键词： operator ordering gauge transformation quantum mechanics

Formation and distribution characteristics of Proterozoic–Lower Paleozoic marine giant oil and gas fields worldwide

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Petroleum Science 2017年第2期14卷 237-260页

作者： xiao-ping liu Zhi-Jun Jin Guo-ping Bai Ming Guan Jie liu Qing-Hua Pan Ting Li Yu-Jie Xing State Key Laboratory of Petroleum Resources and Prospecting Beijing 102249 China College of Geosciences China University of Petroleum Beijing 102249 China Petroleum Exploration and Production Research Institute SINOPEC Beijing 100083 China Exploration and Development Research Institute Petro China Huabei Oilfield Company Renqiu 062552 Hebei China Exploration and Development Research Institute PetroChina Tarim Oilfield Company Korla 841000 Xinjiang China

There are rich oil and gas resources in marine carbonate strata *** most of the oil and gas reserves discovered so far are mainly distributed in Mesozoic,Cenozoic,and upper Paleozoic strata,oil and gas exploration in the Proterozoic–Lower Paleozoic（PLP）strata—the oldest marine strata—has been very *** more clearly understand the oil and gas formation conditions and distributions in the PLP marine carbonate strata,we analyzed and characterized the petroleum geological conditions,oil and gas reservoir types,and their distributions in thirteen giant oil and gas fields *** study reveals the main factors controlling their formation and *** analyses show that the source rocks for these giant oil and gas fields are mainly shale with a great abundance of type I–II organic matter and a high thermal evolution *** reservoirs are mainly gas reservoirs,and the reservoir rocks are dominated by *** reservoir types are mainly karst and reef–shoal bodies with well-developed dissolved pores and cavities,intercrystalline pores,and *** reservoirs arehighly *** burial depth of the reservoirs is highly variable and somewhat negatively correlated to the *** cap rocks are mainly thick evaporites and shales,with the thickness of the cap rocks positively correlated to the oil and gas *** development of high-quality evaporite cap rock is highly favorable for oil and gas *** identified four hydrocarbon generation models,and that the major source rocks have undergone a long period of burial and thermal evolution and are characterized by early and long periods of hydrocarbon *** giant oil and gas fields have diverse types of reservoirs and are mainly distributed in paleo-uplifts,slope zones,and platform margin reef-shoal *** main factors that control their formation and distribution were identified,enabling the prediction of new favorable areas for oil and gas

关键词： Giant oil and gas field Proterozoic and LowerPaleozoic Marine carbonate rocks Petroleum geologicalconditions Oil and gas distribution

CASC15 Gene Polymorphisms and Glioma Susceptibility in Chinese Children

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Current Medical Science 2022年第4期42卷 797-802页

作者： Hui-ran LIN Yong-ping CHEN Hui-tong CHEN xiao-ping liu Jing-ying ZHOU xiao-kai HUANG Li YUAN Zhen-jian ZHUO Faculty of Medicine Macao University of Science and TechnologyMacao 999078China Department of Pediatric Surgery Guangzhou Institute of PediatricsGuangdong Provincial Key Laboratory of Research in Structural Birth Defect DiseaseGuangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Department of Hematology Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China Department of Hematology the Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical UniversityWenzhou 325027China Department of Pathology Guangzhou Women and Children's Medical CenterGuangzhou Medical UniversityGuangzhou 510623China

Objective:Gliomas are the most common tumors in the central nervous *** cancer susceptibility candidate 15(CASC15)gene has been reported to be a susceptibility gene for several types of *** studies have been carried out on the predisposing effect of CASC15 gene single nucleotide polymorphisms(SNPs)on glioma ***:In order to determine whether CASC15 gene SNPs are involved in glioma susceptibility,the first association study in a relatively large sample,which consisted of 171 patients and 228 healthy controls recruited from China,was *** contribution of SNPs(rs6939340 A>G,rs4712653 T>C and rs9295536 C>A)to the risk of glioma was evaluated by multinomial logistic regression,based on the calculation of the odds ratio(OR)and 95%confidence interval(CI).Results:In the single locus and combined analysis,it was revealed that the genetic risk score had no significant associations between CASC15 gene SNPs and glioma ***,in the stratified analysis,a significant decrease in risk of glioma was observed in subjects of<60 months old with the rs4712653 TT genotype,when compared to those with the CC/CT genotype(OR=0.12,95%CI=0.02-0.91,P=0.041).Conclusion:The present study provides referential evidence on the association between the genetic predisposition of the CASC15 gene and glioma risk in Chinese ***,more well-designed case-control studies and functional experiments are needed to further explore the role of CASC15 gene SNPs.

关键词： cancer susceptibility candidate 15 polymorphisms glioma susceptibility Chinese

Lacustrine shale oiliness influenced by diabase intrusions in the Paleogene Funing Formation,Subei Basin,China

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Petroleum Science 2023年第5期20卷 2683-2694页

作者： Biao Sun xiao-ping liu Jie liu Qi-Dong liu Hong-Liang Duan Shi-Li liu Ming Guan Tian liu Zu-Xian Hua Kai Sheng Yu-Jie Xing State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing102249China College of Geosciences China University of Petroleum(Beijing)Beijing102249China International Petroleum Exploration and Production Corporation SINOPECBeijing100029China Research Institute of Exploration and Development SINOPEC Jiangsu Oilfield CompanyJiangsu225009China

The research on the correlation between hydrocarbon accumulations and magmatic activities has always attracted aroused much wide *** research has primarily the hydrocarbon generations capability of source rocks and the quality of reservoirs by diabase ***,rare systematic research has been conducted on the oiliness and enrichment *** be specific,the diabase intrusive zone,the contact metamorphic zone and the normal shale zone of the Funing Formation in the Gaoyou Sag,Subei Basin were taken as the object of this ***,in this study,the hydrocarbon generation quality,reservoir quality,and oil-bearing quality of diabase-metamorphic zone-normal shale were evaluated using X-ray diffractions,argon ion polishing-field emission scanning electron microscope,energy spectrum,rock slice/light-sheet microscopic observations,organic geochemical tests,N_(2) gas adsorption and 2D NMR *** results indicated that the intrusive zone,the metamorphic zone,and the normal zone were formed in order by the degree of effect of diabase ***,the oil content of different parts exhibited significant heterogeneity due to the baking effect of diabase,and the metamorphic zone had the significantly better oil-bearing nature than the intrusive ***,a distribution model was proposed for the diabase intrusive zone-metamorphic zone-normal surrounding rock zone.

关键词： Shale reservoirs Diabase intrusion Oiliness Funing formation