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A brief review on the recent development of phonon engineering and manipulation at nanoscales

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International Journal of Extreme Manufacturing 2024年第1期6卷 177-206页

作者： Siqi Xie Hongxin Zhu Xing Zhang haidong wang Key Laboratory for Thermal Science and Power Engineering of Ministry of Education Department of Engineering MechanicsTsinghua UniversityBeijing 100084People’s Republic of China

Phonons are the quantum mechanical descriptions of vibrational modes that manifest themselves in many physical properties of condensed matter systems. As the size of electronic devices continues to decrease below mean free paths of acoustic phonons, the engineering of phonon spectra at the nanoscale becomes an important topic. Phonon manipulation allows for active control and management of heat fow, enabling functions such as regulated heat transport. At the same time, phonon transmission, as a novel signal transmission method, holds great potential to revolutionize modern industry like microelectronics technology, and boasts wide-ranging applications. Unlike fermions such as electrons, polarity regulation is difficult to act on phonons as bosons, making the development of effective phonon modulation methods a daunting task.This work reviews the development of phonon engineering and strategies of phonon manipulation at different scales, reports the latest research progress of nanophononic devices such as thermal rectifiers, thermal transistors, thermal memories, and thermoelectric devices,and analyzes the phonon transport mechanisms involved. Lastly, we survey feasible perspectives and research directions of phonon engineering. Thermoelectric analogies, external field regulation, and acousto-optic co-optimization are expected to become future research hotspots.

关键词： phonon engineering phononic device nanoscale

Development Ideas for the Multidisciplinary Integrative Diagnosis and Treatment System of Pelvic Floor Medicine

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Chinese Medicine and Culture 2020年第1期3卷 10-14页

作者： haidong wang Capital College of Traditional Chinese Medicine Australia

With the rapid growth of the aging population,pelvic floor dysfunction(PFD)has become a new type of high‑incidence disorder.This disorder can be caused by injury,functional deterioration,or coordination disorders of pelvic support structures,such as pelvic floor muscles,connective tissues,and pelvic floor muscle fiber.The symptoms can include dyssynergic defecation,fecal incontinence,overactive bladder,urinary incontinence,pelvic organ prolapse,hemorrhoids,sexual dysfunction,chronic urinary retention,and chronic pelvic pain.PFD often presents itself as a combination of symptoms involving urological,gynecological,anorectal,and psychological aspects.Under such circumstances,the development of multidisciplinary integrative diagnosis for PFD has become a trend.

关键词： Construction of diagnostic and treatment system multidisciplinary integration pelvic floor

{112}<111>Twins or Twinned Variants Induced by Martensitic Transformation?

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Acta Metallurgica Sinica(English Letters) 2023年第1期36卷 133-140页

作者： Zuohua wang haidong Sun Peng wang Ning Liu Pinwen Zhu Dongli Yu Hongwang Zhang National Engineering Research Center for Equipment and Technology of Cold Strip Rolling College of Mechanical EngineeringYanshan UniversityQinhuangdao 066004China State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China Liren College of Yanshan University Yanshan UniversityQinhuangdao 066004China State Key Laboratory of Superhard Materials College of PhysicsJilin UniversityChangchun 130012China

Twinned substructure in lath martensite was induced in the interstitial free(IF)steel via a high pressure thermal cycle(heating up to 1100℃and holding for 30 min,cooling at 10℃/s to room temperature under a pressure of 4 GPa).Experimental observations and theoretical simulation confrm that the twinned substructure has the origin related to the twinned variants rather than the bcc{112}twins,while extra difraction spots were caused by crystal overlapping rather than any extra phase.The diferences in crystallography and electron difraction behavior between twinned variants and{112}twins were discussed in detail.

关键词： Twinned variants {112}twins Martensitic transformation Crystal overlapping Electron difraction

Sigma-Mixed Unscented Kalman Filter-Based Fault Detection for Traction Systems in High-Speed Trains

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Chinese Journal of Electronics 2023年第5期32卷 982-991页

作者： CHENG Chao wang Weijun MENG Xiangxi SHAO haidong CHEN Hongtian Department of Computer Science and Technology Changchun University of Technology Department of Mathematics and Statistics Changchun University of Technology Institute of System Research China Industrial Control Systems Cyber Emergency Response Team Department of Mechanical and Vehicle Engineering Hunan University Department of Chemical and Materials Engineering University of Alberta

Fault detection(FD) for traction systems is one of the active topics in the railway and academia because it is the initial step for the running reliability and safety of high-speed trains. Heterogeneity of data and complexity of systems have brought new challenges to the traditional FD methods. For addressing these challenges, this paper designs an FD algorithm based on the improved unscented Kalman filter(UKF) with consideration of performance degradation. It is derived by incorporating a degradation process into the state-space model.The network topology of traction systems is taken into consideration for improving the performance of state estimation. We first obtain the mixture distribution by the mixture of sigma points in UKF. Then, the Lévy process with jump points is introduced to construct the degradation model. Finally, the moving average interstate standard deviation(MAISD) is designed for detecting faults.Verifying the proposed methods via a traction systems in a certain type of trains obtains satisfactory results.

关键词： Fault detection Unscented Kalman filter Traction systems State degradation

Tempering mechanism of lath martensite induced in IF steel under high pressure

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Journal of Materials Science & Technology 2023年第29期160卷 148-160页

作者： Zuohua wang haidong Sun Xiaogang Guo Peng wang Ning Liu Dongli Yu Hongwang Zhang National Engineering Research Center for Equipment and Technology of Cold Strip Rolling College of Mechanical EngineeringYanshan UniversityQinhuangdao 066004China State Key Laboratory of Metastable Materials Science and Technology Yanshan UniversityQinhuangdao 066004China Liren College of Yanshan University Yanshan UniversityQinhuangdao 066004China

In this paper,low-and high-strength lath martensite(350 and 640 HV)was fabricated in an IF steel via high pressure martensitic transformation.The microstructure and the softening during their tempering from 200°C to 800°C for 1 h were systematically investigated.A carbon-irrelevant tempering process was proposed,exhibiting a three-stage structural evolution pattern depending upon the tempering de-gree(1-(HV-HV FP)/(HV NP-HV FP),where the HV is the instant hardness,HV NP is the non-tempered hard-ness and HV FP is the fully tempered hardness):(1)low tempered(50%),clearing up the remained variant laths via the migration of the triple junctions.Martensite-type microstructure is tailored by low-index lamellar variant boundaries and is thus intrinsically thermally stable,whereas the mobile terminal tips decrease the tempering resistance.The underlying mechanism for such carbon-irrelevant process was discussed and the potential effect on the tempering behavior of carbon-contained martensite was highlighted.

关键词： Tempering mechanism Lath martensite IF steel Terminal tip migration High pressure

A bipolar metal phthalocyanine complex for sodium dual-ion battery

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Journal of Energy Chemistry 2021年第7期30卷 9-16页

作者： Heng-Guo wang haidong wang Yan Li Yunong wang Zhenjun Si Key Laboratory of Polyoxometalate Science of the Ministry of Education and Faculty of Chemistry Northeast Normal UniversityChangchun 130024JilinChina School of Materials Science and Engineering Changchun University of Science and TechnologyChangchun 130022JilinChina

Dual-ion batteries(DIBs) have attracted immense interest as a new generation of energy storage device due to their low cost,environmental friendliness and high working voltage.However,developing DIBs using organic compounds as active electrode materials is in its infancy.Herein,we first report a bipolar and self-polymerized Cu phthalocyanine(CuTAPc) as an electrode material for sodium-based DIBs(SDIBs).Benefitting from the bipolar property,CuTAPc could serve as the cathode or anode material to construct metal sodium-based or metal sodium-free SDIB(cell 1 or 2) by coupling with sodium anode or graphite cathode,respectively.As a result,cell 1 displays a high discharge capacity of 195.7 mAh g^(-1) at 50 mA g^(-1) and a high reversible capacity of 57 mAh g^(-1) over 2500 cycles at 1 A g^(-1),and cell 2 shows a high energy density of 324 Wh kg^(-1) and a high power density of 7481 W kg^(-1).Subsequently,the proposed binding mechanism and the bipolar reactivity of CuTAPc have been revealed by the detailed reaction kinetic analysis and ex-situ techniques as well as the density functional theory(DFT) calculations.This work could open a pathway to develop the advanced SDIBs constructed by elemental abundant and environmentally friendly organic materials.

关键词： Dual-ion batteries Phthalocyanine Bipolar materials Metal-free batteries Organic batteries

Mechanism underlying efficacy of Shugan Sanjie decoction(疏肝散结汤) on plasma cell mastitis,based on network pharmacology and experimental verification

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Journal of Traditional Chinese Medicine 2022年第3期42卷 400-407页

作者： QIAO Nan wang Qinnan MA Chaoqun CHEN Dexuan CHEN haidong LU Yaoyao Department of general surgery Nantong Hospital Affiliated to Nanjing University of Chinese MedicineNantong 226001China Department of science and education Affiliated Nantong Hospital of Shanghai UniversityNantong 226000China Department of general surgery Affiliated Hospital to Nanjing University of Chinese MedicineNanjing 210029China

OBJECTIVE:To investigate the mechanism underpinning the effeicay of Shugan Sanjie decoction(疏肝散结汤,SGSJD)on plasma cell mastitis(PCM)based on network pharmacology,and to verify it through in vitro.METHODS:Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform and Bioinformatics Analysis Tool for Molecular mechanism of Traditional Chinese Medicine were used to screen effective compounds and drug targets;Online Mendelian Inheritance in Man and Gene Cards were used to search for PCM targets.The potential targets of SGSJD in treating PCM were obtained after the drug targets and disease targets were crossed.Cytoscape software was used to establish and analyze the network of Chinese medicines-active compounds-targets-disease;STRING database platform was used to analyze Protein Protein Interaction network;Bioconductor software package was used to perform Gene ontology and Kyoto Encyclopedia of Genes and Genomes enrichment for potential targets.Western blot analysis was used to verify the janus kinase/signal transducer and activator of transcription(JAK-STAT)pathway in vitro.RESULTS:(a)47 potential pharmacological components of SGSJD treatment of PCM were screened including quercetin,luteolin,kaempferol and others;20 common targets were obtained,including interleukin-6(IL-6),epidermal growth factor receptor,estrogen receptor 1,nitric oxide synthase 3 and others;a number of signal pathways were available,of which advanced glycation end product/receptor for advanced glycation end products signaling pathway in diabetic complications,hypoxia-inducible factor 1 signaling pathway and janus tyrosine kinase-signal transducer and transcription activator(JAK-STAT)signaling pathway were the main signal pathways related to PCM.(b)Compared with the Blank group,the expressions of p-JAK2/JAK2,pSTAT3/STAT3 and IL-6 protein in the Model group were significantly increased(P<0.01);Compared with the Model group,the expression of p-JAK2/JAK2,p-STAT3/STAT3,and IL-6 protein in the treatment group were significantly red

关键词： plasma cells mastitis network pharmacology molecular mechanism Shugan Sanjie decoction

Hardening effects of sheared precipitates on {1121} twinning in magnesium alloys

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Journal of Magnesium and Alloys 2023年第2期11卷 580-591页

作者： Jing Tang Wentao Jiang Qingyuan wang Xiaobao Tian Dean Wei haidong Fan Department of Mechanics Sichuan UniversityChengdu 610065China School of Mechanics and Engineering Southwest Jiaotong UniversityChengdu 610031China

The interactions between a plate-like precipitate and two twin boundaries(TBs)({1012},{1121}) in magnesium alloys are studied using molecular dynamics(MD) simulations. The precipitate is not sheared by {1012} TB, but sheared by {1121} TB. Shearing on the(110) plane is the predominant deformation mode in the sheared precipitate. Then, the blocking effects of precipitates with different sizes are studied for {1121} twinning. All the precipitates show a blocking effect on {1121} twinning although they are sheared, while the blocking effects of precipitates with different sizes are different. The blocking effect increases significantly with the increasing precipitate length(in-plane size along TB) and thickness, whereas changes weakly as the precipitate width changes. Based on the revealed interaction mechanisms, a critical twin shear is calculated theoretically by the Eshelby solutions to determine which TB is able to shear the precipitate. In addition, an analytical hardening model of sheared precipitates is proposed by analyzing the force equilibrium during TB-precipitate interactions. This model indicates that the blocking effect depends solely on the area fraction of the precipitate cross-section, and shows good agreement with the current MD simulations. Finally, the blocking effects of plate-like precipitates on the {1012} twinning(non-sheared precipitate), {1121} twinning(sheared precipitate) and basal dislocations(non-sheared precipitate) are compared together. Results show that the blocking effect on {1121} twinning is stronger than that on {1012} twinning, while the effect on basal dislocations is weakest. The precipitate-TB interaction mechanisms and precipitation hardening models revealed in this work are of great significance for improving the mechanical property of magnesium alloys by designing microstructure.

关键词： Magnesium alloys Precipitate-twin boundary interactions Sheared precipitate Precipitation hardening model Molecular dynamics simulations

Adhesive Contact of a One-Dimensional Hexagonal Quasicrystal Half-Space Punched by a Spherical Indenter

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Acta Mechanica Solida Sinica 2022年第5期35卷 787-799页

作者： Peidong Li Yuwei Liu Songhan Zhang Bingmei Shao haidong Fan Qingyuan wang Failure Mechanics and Engineering Disaster Prevention Key Laboratory of Sichuan ProvinceSichuan UniversityChengdu610065China Chengdu University Chengdu610106China School of Civil Engineering Dalian University of TechnologyDalian116024China

This paper develops the adhesive contact theory for a one-dimensional hexagonal quasicrystal half-space punched by a spherical indenter on the basis of the classical adhesive contact models involving the Johnson–Kendall–Roberts(JKR)model,the Maugis–Dugdale(MD)model and the Derjaguin–Muller–Toporov(DMT)model.By using the superposition principle combined with the Griffith energy balance,all the significant physical quantities for adhesive contact,such as the energy release rate,indentation force,penetration depth,contact radius and pull-out force,are obtained for different models.The result for the DMT model is derived from the MD solution through a limiting procedure.A numerical calculation is carried out to verify the present analytical solutions,to compare different contact models,and to analyze the influence of the phason field on the results.It is indicated that the effect of the phason field on the result for the MD model is pronounced,especially for a small contact radius.However,the phason effect on the JKR and DMT results is not significant.The present solution can serve as a theoretical basis for nano-indentation and atomic force microscopy to measure the material properties of quasicrystals.

关键词： Adhesive contact Quasicrystal Spherical indenter Analytical solution