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解放军外国语学院学报 2007年第1期30卷 25-29页

作者：郭天相河南大学外语学院河南开封475001

诗学语音学是研究诗语语音的诗性功能与音响艺术特征的领域。从诗语的语音观、语音意义的生成、诗语语音的修辞规律、节奏韵律及旋律等几个关键问题着眼进行考察,能基本勾勒出诗学语音学的基本轮廓,从而为进一步深入研究奠定基础。

关键词：诗学语音学诗用语音音响艺术诗性功能

Evaluation and attribution of trends in compound dry-hot events for major river basins in China

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Science China Earth Sciences 2024年第1期67卷 79-91页

作者： Shaotang XIONG Tongtiegang ZHAO Chengchao guo Yu tian Fang YANG Wenlong CHEN Xiaohong CHEN Key Laboratory of Water Security Guarantee in Guangdong-Hong Kong-Marco Greater Bay Area of Ministry of Water Resources&Sun Yatsen University/Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Guangzhou 510275China China Institute of Water Resource and Hydropower Research Beijing 100038China Pearl River Hydraulic Research Institute Guangzhou 510611China

Concurrent compound dry and hot events(CDHEs)amplified more damange on the ecosystems and human society than individual *** climate change,compound dry and hot events become more frequent on a global *** paper proposes a mathematical method to quantitatively attribute changes of CDHEs to changes of precipitation,change in temperature and change in the dependence between precipitation and *** attribution is achieved by formulating the total differential equation of the return period of CDHEs among Meta-gaussian model.A case study of China is devised based on monthly precipitation and temperature data during the period from 1921 to 2020 for 80 major river *** is found that temperature is the main driving factor of increases in CDHEs for 49 major river basins in China,except for the upper and middle reaches of the Yangtze *** West China,precipitation changes drove the increase in CDHEs in 18 river basins(23%),particularly in parts of North Xinjiang,Qinghai and *** the other hand,dependence between precipitation and temperature dominated changes of CDHEs in 13 river basins(16%)of China with other factors,including parts of South China,East China and Northwestern ***,changes in both the mean and spread of precipitation and temperature can also contribute to changes in CDHEs.

关键词： Climate extreme Compound dry and hot extreme Precipitation Temperature Return period

A Hybrid Approach for Predicting the Remaining Useful Life of Bearings Based on the RReliefF Algorithm and Extreme Learning Machine

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Computer Modeling in Engineering & Sciences 2024年第8期140卷 1405-1427页

作者： Sen-Hui Wang Xi Kang Cheng Wang tian-Bing Ma xiang He Ke Yang School of Mechatronics Engineering Anhui University of Science and TechnologyHuainan232001China Institute of Energy Hefei Comprehensive National Science CenterHefei230031China

Accurately predicting the remaining useful life(RUL)of bearings in mining rotating equipment is vital for mining *** research aims to distinguish the features associated with the RUL of bearings and propose a prediction model based on these selected *** study proposes a hybrid predictive model to assess the RUL of rolling element *** proposed model begins with the pre-processing of bearing vibration signals to reconstruct sixty time-domain *** hybrid model selects relevant features from the sixty time-domain features of the vibration signal by adopting the RReliefF feature selection ***,the extreme learning machine(ELM)approach is applied to develop a predictive model of RUL based on the optimal *** model is trained by optimizing its parameters via the grid search *** training datasets are adjusted to make them most suitable for the regression model using the cross-validation *** proposed hybrid model is analyzed and validated using the vibration data taken from the public XJTU-SY rolling element-bearing *** comparison is constructed with other traditional *** experimental test results demonstrated that the proposed approach can predict the RUL of bearings with a reliable degree of accuracy.

关键词： Bearing degradation remaining useful life estimation RReliefF feature selection extreme learning machine

Analyze the Performance of Electroactive Anticorrosion Coating of Medical Magnesium Alloy Using Deep Learning

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Computers, Materials & Continua 2024年第4期79卷 263-278页

作者： Yashan Feng Yafang tian Yongxin Yang Yufang Zhang Haiwei guo Jing’an Li Advanced Functional Materials Laboratory Zhengzhou Railway Vocational and Technical CollegeZhengzhou450000China School of Materials Science and Engineering Zhengzhou UniversityZhengzhou450000China

Electroactive anticorrosion coatings are specialized surface treatments that prevent or minimize corrosion. Thestudy employs strategic thermodynamic equilibriumcalculations to pioneer a novel factor in corrosion protection.A first-time proposal, the total acidity (TA) potential of the hydrogen (pH) concept significantly shapes medicalmagnesium alloys. These coatings are meticulously designed for robust corrosion resistance, blending theoreticalinsights and practical applications to enhance our grasp of corrosion prevention mechanisms and establisha systematic approach to coating design. The groundbreaking significance of this study lies in its innovativeintegration of the TA/pH concept,which encompasses the TA/pH ratio of the chemical environment. This approachsurpasses convention by acknowledging the intricate interplay between the acidity and pH levels within thecoating formulation, thereby optimizing metal-phosphate-based conversion coatings and transforming corrosionmitigation strategies. To authenticate the TA/pH concept, the study comprehensively compares its findings withexisting research, rigorously validating the theoretical framework and reinforcing the correlates among TA/pHvalues and observed corrosion resistance in the coatings. The influence of mutations that occur naturally inthe detergent solution on persistent phosphorus changes is shown by empirical confirmation, which improvescorrosion resistance. This realization advances the field ofmaterials and the field’s knowledge of coated generation,particularly anticorrosion converter layers.

关键词： Medical magnesium alloys hydrogen gas anticorrosion total acidity potential of the hydrogen(pH)

An Experimental Study on the Effect of a Nanofluid on Oil-Water Relative Permeability

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Fluid Dynamics & Materials Processing 2024年第6期20卷 1265-1277页

作者： Hui tian Dandan Zhao Yannan Wu Xingyu Yi Jun Ma xiang Zhou Baikouquan Oil Production Plant PetroChina Xinjiang Oilfield CompanyKaramay834000China Research Institute of Petroleum Exploration Development PetroChina Liaohe OilfieldPanjin124010China Petroleum Engineering School Southwest Petroleum UniversityChengdu610500China Oil and Gas Development Haosheng Xincheng Energy TechnologyLtd.of SicuanChengdu610213China

The low porosity and low permeability of tight oil reservoirs call for improvements in the current technologies for oil *** chemical solutions with large molecular size cannot effectively flow through the nanopores of the *** this study,the feasibility of Nanofluids has been investigated using a high pressure high temperature core-holder and nuclear magnetic resonance(NMR).The results of the experiments indicate that the specified Nanofluids can enhance the tight oil recovery *** water and oil relative permeability curve shifts to the high water saturation side after Nanofluid flooding,thereby demonstrating an increase in the water wettability of the *** the Nanofluid flooding process the oil recovery was enhanced by 15.1%,compared to waterflooding *** T2 spectra using the NMR show that after Nanofluid flooding,a 7.18%increment in oil recovery factor was gained in the small pores,a 4.9%increase in the middle pores,and a 0.29%increase in the large *** results confirm that the Nanofluids can improve the flow state in micro-sized pores inside the core and increase the ultimate oil recovery factor.

关键词： Tight oil reservoir nanofluid relative permeability nuclear magnetic resonance T2 spectrum

Effects of virtual agents on interaction efficiency and environmental immersion in MR environments

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虚拟现实与智能硬件（中英文） 2024年第2期6卷 169-179页

作者： Yihua BAO Jie guo Dongdong WENG Yue LIU Zeyu tian Beijing Engineering Research Center of Mixed Reality and Advanced Display Beijing Institute of TechnologyBeijing 100081China Pengcheng Laboratory Shenzhen 518038China

Background Physical entity interactions in mixed reality(MR)environments aim to harness human capabilities in manipulating physical objects,thereby enhancing virtual environment(VEs)*** MR,a common strategy is to use virtual agents as substitutes for physical entities,balancing interaction efficiency with environmental ***,the impact of virtual agent size and form on interaction performance remains *** Two experiments were conducted to explore how virtual agent size and form affect interaction performance,immersion,and preference in MR *** first experiment assessed five virtual agent sizes(25%,50%,75%,100%,and 125%of physical size).The second experiment tested four types of frames(no frame,consistent frame,half frame,and surrounding frame)across all agent ***,utilizing a head mounted display,performed tasks involving moving cups,typing words,and using a *** completed questionnaires assessing aspects such as the virtual environment effects,interaction effects,collision concerns,and *** Results from the first experiment revealed that agents matching physical object size produced the best overall *** second experiment demonstrated that consistent framing notably enhances interaction accuracy and speed but reduces *** balance efficiency and immersion,frameless agents matching physical object sizes were deemed *** Virtual agents matching physical entity sizes enhance user experience and interaction ***,familiar frames from 2D interfaces detrimentally affect interaction and immersion in virtual *** study provides valuable insights for the future development of MR systems.

关键词： Mixed reality Virtual agents Interaction performance Environmental immersion Virtual environments

Sora for foundation robots with parallel intelligence:three world models,three robotic systems

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Frontiers of Information Technology & Electronic Engineering 2024年第7期25卷 917-923页

作者： Lili FAN Chao guo Yonglin tian Hui ZHANG Jun ZHANG Fei-Yue WANG School of Information and Electronics Beijing Institute of TechnologyBeijing 100081China State Key Laboratory for Management and Control of Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China School of Computer and Information Technology Beijing Jiaotong UniversityBeijing 100044China School of Electrical Engineering Wuhan UniversityWuhan 430072China

This paper outlines the initial steps and basic framework for developing foundation/infrastructure robots/robotics based on foundation models and parallel intelligence,as well as the potential applications of new art... 详细信息

关键词： artificial foundation intelligence

Thienothiophene-centered ladder-type π-systems that feature distinct quinoidal π-extension

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Chinese Chemical Letters 2024年第5期35卷 249-253页

作者： Jiaxiang guo Zeyi Li tianyu Zhang Xinyu tian Yue Wang Chuandong Dou State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChangchun 130012China Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials Soochow UniversitySuzhou 215123China

Quinoidalπ-conjugated structures,a kind of fundamental subunits for organicπ-systems,may produce some intriguing optical,electronic and magnetic properties of polycyclic hydrocarbons(PHs).Herein,we report two thienothiophene-centered ladder-type polycyclic molecules(1 and 2),which possess one quinoidal thienothiophene moiety and two para-quinodimethane(p-QDM)subunits,*** theoretically and experimentally studied,while 1 is a fully closed-shell molecule,2 owns an open-shell structure along with partial contribution of tetraradical state that is induced by the resonance of ***,although 2 has a largerπ-conjugated skeleton and open-shell electronic state,it exhibits larger bandgap and blue-shifted *** the other hand,the reversible oxidation activity of 1 enables the preparation of its dication 1^(2+),and the studies on its single-crystal and aromatic structures demonstrate that its two positive charges are delocalized onto the oxygen atoms,thus achieving fullyπ-extended structure and near-infrared *** study not only gains insight into quinoidalπ-subunits,but also provides an important basis for the development of antiaromatic and open-shellπ-electron materials.

关键词： Thienothiophene Quinoidal conjugation Open-shell structure Aromaticity Photophysical properties

Growth and inhibition of zinc anode dendrites in Zn-air batteries:Model and experiment

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Chinese Journal of Chemical Engineering 2024年第3期67卷 268-281页

作者： Cuiping He Qingyi Gou Yanqing Hou Jianguo Wang xiang You Ni Yang Lin tian Gang Xie Yuanliang Chen Kunming University of Science and Technology State Key Laboratory of Complex Nonferrous Metal Resources Clean UtilizationKunming 650093China Kunming University of Science and Technology Faculty of Metallurgical and Energy EngineeringKunming 650093China China Copper Co.Ltd KunmingYunnan 650051China State Key Laboratory of Advanced Metallurgy for Non-ferrous Metals Kunming 650051China Sichuan Shunying Power Battery Materials Co.Ltd Sichuan 620076China

Zinc(Zn)-air batteries are widely used in secondary battery research owing to their high theoretical energy density,good electrochemical reversibility,stable discharge performance,and low cost of the anode active material ***,the Zn anode also leads to many challenges,including dendrite growth,deformation,and hydrogen precipitation *** this context,Zn dendrite growth has a greater impact on the cycle *** this dissertation,a dendrite growth model for a Zn-air battery was established based on electrochemical phase field theory,and the effects of the charging time,anisotropy strength,and electrolyte temperature on the morphology and growth height of Zn dendrites were studied.A series of experiments was designed with different gradient influencing factors in subsequent experiments to verify the theoretical simulations,including elevated electrolyte temperatures,flowing electrolytes,and pulsed *** simulation results show that the growth of Zn dendrites is controlled mainly by diffusion and mass transfer processes,whereas the electrolyte temperature,flow rate,and interfacial energy anisotropy intensity are the main *** experimental results show that an optimal electrolyte temperature of 343.15 K,an optimal electrolyte flow rate of 40 ml·min^(-1),and an effective pulse charging mode.

关键词： Zn-air battery Zinc anode Zinc dendrite Simulated dendrite growth Inhibit dendrite growth Phase-field model

Friend or foe? Using eye-tracking technology to investigate the visual discrimination ability of giant pandas

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Current Zoology 2024年第4期70卷 430-439页

作者： Xinrui Huang guo Li Guiquan Zhang Zixiang Li Lin Zhao Mengdie Zhu Qinghua xiang Xuefeng Liu Mei tian Hemin Zhang Christina D.Buesching Dingzhen Liu Ministry of Education Key Laboratory of Biodiversity Science and Ecological EngineeringDepartment of EcologyCollege of Life SciencesBeijing Normal UniversityBeijing 100875China Key Laboratory of State Forestry and Grassland Administration on Conservation Biology of Rare Animals in the Giant Panda National Park China Conservation and Research Center for the Giant PandaSichuan 623004China School of Computer and Information Technology Beijing Jiaotong UniversityBeijing 100044China Beijing Key Laboratoryof CaptiveWildlife Technology Beijing ZooBeijing100044China Department of Biology Irving K.Barber Faculty of ScienceThe University of British ColumbiaOkanagan CampusKelownaBCCanada

The role that visual discriminative ability plays among giant pandas in social communication and individual discrimination has received less attention than olfactory and auditory ***,we used an eye-tracker technology to investigate pupil fixation patterns for 8 captive male giant pandas Ailuropoda *** paired images(N=26)of conspecifics against:1)sympatric predators(gray wolves and tigers),and non-threatening sympatric species(golden pheasant,golden snub-nosed monkey,takin,and red panda),2)conspecifics with atypical fur colora-tion(albino and brown),and 3)zookeepers/non-zookeepers wearing either work uniform or plain *** each session,we tracked the pan-da's pupil movements and measured pupil first fixation point(FFP),fixation latency,total fixation count(TFC),and duration(TFD)of attention to each ***,pandas exhibited similar attention(FFPs and TFCs)to images of predators and non-threatening sympatric *** of golden pheasant,snub-nosed monkey,and tiger received less attention(TFD)than images of conspecifics,whereas images of takin and red panda received more attention,suggesting a greater alertness to habitat or food competitors than to potential ***'TFCs were greater for images of black-white conspecifics than for albino or brown phenotypes,implying that familiar color elicited more *** reacted differently to images of men versus *** images of women only,pandas gave more attention(TFC)to familiar combinations(uniformed zookeepers and plain-clothed non-zookeepers),consistent with the familiarity *** pandas can use visual perception to discriminate intra-specifically and inter-specifically,including details of human appearance,has applications for panda conservation and captive husbandry.

关键词： eye movement tracker giant panda images total fixation duration total pupil fixation count visual discrimination.