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Elastic Characteristics of Digital Cores from Longmaxi Shale Using Lattice Spring Models

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Communications in Computational Physics 2020年第6期28卷 518-538页

作者： ning liu Li-Yun Fu Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China School of Geosciences China University of Petroleum(East China)Qingdao 266580ShandongChina

Effective medium methods for the attribution of micro-structures to macro elastic properties of shales are important for the prediction of sweet spots in the shale-gas *** X-ray micro-computed tomography(XMCT),the micro-structures of shale core samples from Longmaxi Formation are visualized and characterized by 3D digital *** an efficient alternative to conventional effective medium methods for estimating elastic properties,we propose a consistent workflow of lattice spring modeling(LSM)to emulate the digital cores using three types of *** attention is paid to investigate the effective Young’s moduli,Poisson’s ratios,and preferred orientations,by uniaxial compression tests along two *** elastic deformation,the impact of lattice arrangements on the anisotropy is even more than those of stress disturbances and micro-structural *** with analytical approximations and theoretical predictions,the LSM numerical scheme shows general applicability for heterogeneous porous rocks.

关键词： Elastic characteristics lattice spring model(LSM) X-ray micro-computed tomogra-phy(XMCT) digital cores

Emergence,concept,and understanding of Pan-River-Basin(PRB)

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International Soil and Water Conservation Research 2015年第4期3卷 253-260页

作者： ning liu The Ministry of Water Resources Beijing 10083China

In this study,the concept of Pan-River-Basin(PRB)for water resource management is proposed with a discussion on the emergence,concept,and application of *** formation and application of PRB is also discussed,including perspectives on the river contribution rates,harmonious levels of watershed systems,and water resource availability in PRB *** PRB is helpful for reconsidering river development and categorizing river studies by the influences from human *** sustainable development of water resources and the harmonization between humans and rivers also requires PRB.&2015 International Research and Training Center on Erosion and Sedimentation and China Water and Power *** and Hosting by Elsevier *** is an open access article under the CC BY-NC-ND license.

关键词： Aquatic Base System Harmonization of humans and rivers Pan-River-Basin River contribution rate Water transfer

Spontaneous Language Analysis in Alzheimer’s Disease:Evaluation of Natural Language Processing Technique for Analyzing Lexical Performance

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Journal of Shanghai Jiaotong university(Science) 2022年第2期27卷 160-167页

作者： liu ning Yuan Zhenming School of Public Health Hangzhou Normal UniversityHangzhou311121China Department of Mathematics and Computer Science Quanzhou Normal UniversityQuanzhou362000FujianChina School of Information Science and Technology Hangzhou Normal UniversityHangzhou311121China

Language disorder,a common manifestation of Alzheimer’s disease(AD),has attracted widespread attention in recent *** paper uses a novel natural language processing(NLP)method,compared with latest deep learning technology,to detect AD and explore the lexical *** proposed approach is based on two ***,the dialogue contents are summarized into two categories with the same ***,term frequency—inverse document frequency(TF-IDF)algorithm is used to extract the keywords of transcripts,and the similarity of keywords between the groups was calculated separately by cosine *** deep learning methods are used to compare the *** the meanwhile,keywords with the best performance are used to analyze AD patients’lexical *** the Predictive Challenge of Alzheimer’s Disease held by iFlytek in 2019,the proposed AD diagnosis model achieves a better performance in binary classification by adjusting the number of *** F1 score of the model has a considerable improvement over the baseline of 75.4%,and the training process of which is simple and *** analyze the keywords of the model and find that AD patients use less noun and verb than normal controls.A computer-assisted AD diagnosis model on small Chinese dataset is proposed in this paper,which provides a potential way for assisting diagnosis of AD and analyzing lexical performance in clinical setting.

关键词： natural language processing(NLP) Alzheimer's disease(AD) mild cognitive impairment term frequency-inverse document frequency(TF-IDF) bag of words

Dynamics of momentum distribution and structure factor in a weakly interacting Bose gas with a periodical modulation

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Communications in Theoretical Physics 2020年第12期72卷 171-175页

作者： ning liu Z C Tu Department of Physics Beijing Normal UniversityBeijing 100875China

The momentum distribution and dynamical structure factor in a weakly interacting Bose gas with a time-dependent periodic modulation in terms of the Bogoliubov treatment are *** evolution equation related to the Bogoliubov weights happens to be a solvable Mathieu equation when the coupling strength is periodically *** exact relation between the time derivatives of momentum distribution and dynamical structure factor is derived,which indicates that the single-particle property is strongly related to the two-body property in the evolutions of Bose–Einstein *** is found that the momentum distribution and dynamical structure factor cannot display periodical *** stable dynamics,some particular peaks in the curves of momentum distribution and dynamical structure factor appear synchronously,which is consistent with the derivative relation.

关键词： Bose gas periodical coupling constant dynamical structure factor Mathieu equation

Effect of Dy doping on magnetism of La_(0.7)Sr_(0.3)CoO_3 system

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Rare Metals 2012年第2期31卷 135-139页

作者： liu, ning Yan, Guoqing Zhu, Guang Guo, Huanyin College of Science Anhui Science and Technology UniversityFengyang 233100China Anhui Key Laboratory of Spin Electron and Nanomaterials(Cultivating Base) Suzhou CollegeSuzhou 234000China National Laboratory of Solid State Microstructures Nanjing UniversityNanjing 210093China

The effect of Dy doping on magnetism of La 0.7 Sr 0.3 CoO 3 system was studied through the measurements of M-T curves and M-H curves. The results show that with Dy content increasing, T C decreases, M weakens, the coercive force strengthens, and the samples exhibit the abnormal phenomenon that M increases continuously with T decreasing in low temperature range. Research indicates that the variation of magnetism in the system comes from the changes of lattice parameters and magnetic environment caused by Dy doping and from the spin-state transition of Co ions induced by Dy ions.

关键词： magnetic structure cluster glass state spin-state transition

Recent progress of astatine-211 in endoradiotherapy:Great advances from fundamental properties to targeted radiopharmaceuticals

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Chinese Chemical Letters 2022年第7期33卷 3325-3338页

作者： Feize Li Yuanyou Yang Jiali Liao ning liu Key Laboratory of Radiation Physics and Technology of the Ministry of Education Institute of Nuclear Science and TechnologySichuan UniversityChengdu 610064China

Astatine-211(^(211)At,t_(1/2)=7.21 h)emitting twoαparticles with energies of 5.87 and 7.45 MeV,can lead to a high linear energy transfer(LET=98.84 ke V/μm)and short tissue range(50~90μm).Since the 1950s,^(211)At had stepped into endoradiotherapy and has always been regarded as one of the most promisingα-emitters for targeted-alpha therapy(TAT)in various *** the past two decades,^(211)At related radiopharmaceuticals have achieved great progress in the studies of basic physicochemical properties of astatine,^(211)At labeling strategies,preclinical and clinical studies,producing profound effects in nuclear *** work will give a panorama of^(211)At-related researches in the recent 20 years,which will cover both the fundamental insights of^(211)At radiochemistry and applied labeling *** can provide some important hints for the studies of TAT and other radiopharmaceuticals applied in tumor radiotherapy.

关键词： Radionuclides Astatine-211 Target-alpha therapy Radiopharmaceuticals

δ/γtransformation in non-equilibrium solidified peritectic Fe-Ni alloy

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Science China(Physics,Mechanics & Astronomy) 2007年第4期50卷 421-431页

作者： CHEN YuZeng liu Feng YANG GenCang liu ning ZHOU YaoHe State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an 710072China

Through phase transformation kinetic analysis and experimental observation,the δ/γtransformation occurring in the non-equilibrium peritectic Fe-4.33at.%Ni alloys was systematically *** to JMA solid-state transformation ki-netic theory,the Time-Temperature-Transformation(TTT)curves of the δ/γtrans-formation in peritectic Fe-Ni alloy were *** this basis,the physical cor-relation between the δ/γtransformation and the initial undercooling of melt(T)was *** results indicate that the change of T can alter not only the overall δ/γtransformation pathways but also the transformation fraction with re-spect to each transformation mechanism.

关键词： δ/γ transformation undercooling non-equilibrium solidification peritectic reaction Fe-Ni alloy

Construction of Female Subjectivity in the Yan’an Period under the Intersubjective Perspective

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学术界 2020年第10期 217-224页

作者： liu ning Qin Yan School of Marxism Northwestern Polytechnical University Xi’an Shaanxi 710129

In the practice of intersubjective ideological education,human subjectivity can be fully developed in three dimensions:practical dimension,value dimension and social dimension,thus improving the effectiveness of ideological *** Daily in the Yan’an period is an important carrier for the Chinese Communist Party to carry out the ideological education of *** the reports on women’s work in Liberation Daily as samples,this paper analyzes the construction of female subjectivity in Yan’an from the perspective of intersubjective ideological *** is conducive to deepening the study of the effectiveness of the ideological education of women,and it also has practical significance for deepening the party’s women work.

关键词： Liberation Daily subjectivity intersubjectivity effectiveness of ideological education

Family-Society: The Dual Identity of Chinese Women

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学术界 2020年第5期 210-217页

作者： liu ning Qin Yan School of Marxism Northwestern Polytechnical University Xi’an Shaanxi 710129

The analysis of the historical and theoretical origins of the dual identity of Chinese women based on the Marxist view of family-society enables a more scientific and reasonable explanation to the unity of history and logic of Chinese women’s dual *** the guidance of the Marxist concept of family-society,Chinese women will achieve development in both family space and social space;meanwhile,Chinese women in the dual identity development carry the home-state emotion different from that of western women’s;cultivating women’s awareness of family identity is of great significance to the construction of family style or national style in the new era of socialism with Chinese characteristics.

关键词： Chinese women Marxist view of family-society dual identity of family-society family space social space Interpretation of Marxist view of family-society