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The possible KK^(*)and D^(*)bound and resonance states by solving the Schrodinger equation

Communications in Theoretical Physics 2024年第10期76卷 85-91页

作者： Bao-Xi sun Qin-Qin Cao ying-tai sun School of Physics and Optoelectronic Engineering Beijing University of TechnologyBeijing 100124China School of Mechanical and Materials Engineering North China University of TechnologyBeijing 100144China

The Schrodinger equation with a Yukawa type of potential is solved *** different boundary conditions are taken into account,a series of solutions are indicated as a Bessel function,the first kind of Hankel function and the second kind of Hankel function,***,the scattering processes of K^(*)and D^(*)are *** the K^(*)sector,the f_(1)(1285)particle is treated as a K^(*)bound state,therefore,the coupling constant in the K^(*)Yukawa potential can be fixed according to the binding energy of the f_(1)(1285)***,a K^(*)resonance state is generated by solving the Schrodinger equation with the outgoing wave condition,which lies at 1417-i18 MeV on the complex energy *** is reasonable to assume that the K^(*)resonance state at 1417-i18 MeV might correspond to the f_(1)(1420)particle in the review of the Particle Data *** the D^(*)sector,since the X(3872)particle is almost located at the D^(*)threshold,its binding energy is approximately equal to ***,the coupling constant in the D^(*)Yukawa potential is determined,which is related to the first zero point of the zero-order Bessel *** to the K^(*)case,four resonance states are produced as solutions of the Schrodinger equation with the outgoing wave *** is assumed that the resonance states at 3885~i1 MeV,4029-i108 MeV,4328-i191 MeV and 4772-i267 MeV might be associated with the Zc(3900),the X(3940),theχ_(c1)(4274)andχ_(c1)(4685)particles,*** is noted that all solutions are isospin degenerate.

关键词： non-Hermitian quantum mechanics Schrodinger equation meson-meson interaction one-pion exchanging potential resonance state bound state

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Biomaterial‑based mechanical regulation facilitates scarless wound healing with functional skin appendage regeneration

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Military Medical Research 2025年第1期12卷 96-120页

作者： ying-ying Li Shuai-Fei Ji Xiao-Bing Fu Yu-Feng Jiang Xiao-Yan sun Research Center for Tissue Repair and Regeneration Affiliated to the Medical Innovation Research Department Chinese PLA General Hospital and PLA Medical CollegePLA Key Laboratory of Tissue Repair and Regenerative Medicine and Beijing Key Research Laboratory of Skin InjuryRepair and RegenerationResearch Unit of Trauma CareTissue Repair and RegenerationChinese Academy of Medical Sciences2019RU051Beijing 100048China Research Unit of Trauma Care Tissue Repair and RegenerationChinese Academy of Medical Sciences2019RU051Beijing 100048China 2Department of Tissue Regeneration and Wound RepairChinese PLA General HospitalBeijing 100853China

Scar formation resulting from burns or severe trauma can significantly compromise the structural integrity of skin and lead to permanent loss of skin appendages,ultimately impairing its normal physiological *** evidence underscores the potential of targeted modulation of mechanical cues to enhance skin regeneration,promoting scarless repair by influencing the extracellular microenvironment and driving the phenotypic *** field of skin repair and skin appendage regeneration has witnessed remarkable advancements in the utilization of biomaterials with distinct physical ***,a comprehensive understanding of the underlying mechanisms remains somewhat elusive,limiting the broader application of these *** this review,we present two promising biomaterial-based mechanical approaches aimed at bolstering the regenerative capacity of compromised *** first approach involves leveraging biomaterials with specific biophysical properties to create an optimal scarless environment that supports cellular activities essential for *** second approach centers on harnessing mechanical forces exerted by biomaterials to enhance cellular plasticity,facilitating efficient cellular reprogramming and,consequently,promoting the regeneration of skin *** summary,the manipulation of mechanical cues using biomaterial-based strategies holds significant promise as a supplementary approach for achieving scarless wound healing,coupled with the restoration of multiple skin appendage functions.

关键词： Scarless Wound healing Biomaterials Mechanical cues Skin appendages

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Radiation belt electron wisp inside South Atlantic Anomaly due to terrestrial VLF transmitter observed by MSS-1

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Science China Earth Sciences 2025年第2期68卷 538-548页

作者： Yixin sun ying LIU Qiugang ZONG Yixin HAO Hong ZOU Yuguang YE Institute of Space Physics and Applied Technology Peking UniversityBeijing 100871China State Key Laboratory of Lunar and Planetary Science Macao University of Science and TechnologyMacao 999078China Max Planck Institute for Solar System Research Goettingen 37077Germany

The South Atlantic Anomaly represents a region within near-Earth space characterized by a significantly weaker geomagnetic field and a higher flux of energetic particles compared to other areas. It is a space weather hazards to Low-EarthOrbit satellites. There has been evidence that the Very Low Frequency(VLF) waves from the powerful ground VLF radio transmitter in Australia, known as NWC, have the capacity to scatter energetic electrons' pitch angle in the inner radiation *** scattering directs electrons into the drift loss cone, forms a “wisp”, characterized by its peak intensity outside the South Atlantic Anomaly(SAA), and a “rift” exhibiting minimal intensity within SAA. Our findings mark the initial observation of a“wisp” precipitation, an unusual occurrence with peak intensity detected inside the SAA, observed via the Macao Science Satellite-1. Enabled by the Medium-energy Electron Spectrometer onboard Macao Science Satellite-1, we were able to comprehensively measure the full pitch angle distribution at Low-Earth-Orbit. This allowed us to attribute the “wisp” within the anomaly to a specific pitch angle range just outside the drift loss cone, a measurement unattainable by previous satellites. This“wisp” occurrence aligns with previous model predictions, despite being overlooked. Moreover, we distinguished between the trapped and precipitating electron populations. Directly derived from the ratio of these populations, our analysis revealed that approximately 2%-5% of trapped electrons will be lost in this specific wisp due to the influence of the ground VLF *** results not only complement existing evidence of energetic electron pitch angle scattering facilitated by the ground VLF transmitter but also offer a quantitative estimation of its impact.

关键词： South Atlantic Anomaly Radiation belts Electrons precipitation VLF transmitter Wave-particle interaction

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The possible K■ and D■ bound and resonance states by solving the Schrodinger equation

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Communications in Theoretical Physics 2024年第10期 87-93页

作者： Bao-Xi sun Qin-Qin Cao ying-tai sun School of Physics and Optoelectronic Engineering Beijing University of Technology School of Mechanical and Materials Engineering North China University of Technology

The Schrodinger equation with a Yukawa type of potential is solved *** different boundary conditions are taken into account,a series of solutions are indicated as a Bessel function,the first kind of Hankel function and the second kind of Hankel function,***,the scattering processes of K■ and D■ are *** the K■ sector,the f1（1285） particle is treated as a K■ bound state,therefore,the coupling constant in the K■ Yukawa potential can be fixed according to the binding energy of the f1（1285） ***,a K■ resonance state is generated by solving the Schrodinger equation with the outgoing wave condition,which lies at 1417-i18 MeV on the complex energy *** is reasonable to assume that the K■ resonance state at 1417-i18 MeV might correspond to the f1（1420） particle in the review of the Particle Data *** the D■ sector,since the X（3872）particle is almost located at the D■ threshold,its binding energy is approximately equal to ***,the coupling constant in the D■ Yukawa potential is determined,which is related to the first zero point of the zero-order Bessel *** to the K■ case,four resonance states are produced as solutions of the Schrodinger equation with the outgoing wave *** is assumed that the resonance states at 3885～i1 MeV,4029-i108 MeV,4328-i191 MeV and 4772-i267 MeV might be associated with the Zc（3900）,the X（3940）,the χc1（4274） andχc1（4685） particles,*** is noted that all solutions are isospin degenerate.

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Optimizing distribution of multiple tuned mass dampers for building structures with inverse element exchange method

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Earthquake Engineering and Engineering Vibration 2025年第1期24卷 187-199页

作者： Peng-tai Chan Department of Marine Environment and Engineering Sun Yat-sen University(NSYSU)Kaohsiung 804TaiwanChina

Multiple tuned mass dampers(MTMDs)reduce dynamic response with multiple specified frequencies of building *** optimization algorithms for placement design exist,though they rarely conform to code-based verification nor produce high quality solutions without high computational effort and high *** study proposes an inverse element exchange method(IEEM)with multi-level programming and compares it to a single tuned mass damper(STMD)and uniform distribution of multiple tuned mass dampers in the frequency and time domains.A ten-story shear building is used for the numerical case *** results show that the proposed method can offer improvement over the STMD,uniform distribution of multiple tuned mass dampers,and distribution optimized by genetic algorithms(GA)with regard to minimizing the interstory drift ratio(IDR)in both the frequency and time domains and the time consumption for optimization.

关键词： tuned mass damper multiple tuned mass damper optimal damper placement design transfer function

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New classification of gastric polyps:An in-depth analysis and critical evaluation

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World Journal of Gastroenterology 2025年第7期31卷 149-155页

作者： Xiao-Hui Liao ying-Ming sun Hong-Bin Chen Department of Gastroenterology The First Hospital of Sanming Affiliated to Fujian Medical UniversityFujian Medical UniversitySanming 365000Fujian ProvinceChina Department of Medical and Radiation Oncology Sanming First HospitalFujian Medical UniversitySanming 365000Fujian ProvinceChina Department of Gastroenterology I Sanming First HospitalFujian Medical UniversitySanming 365000Fujian ProvinceChina

With the widespread use of upper gastrointestinal endoscopy,more and more gastric polyps(GPs)are being *** management strategies often rely on histopathologic examination,which can be time-consuming and may not guide immediate clinical *** paper aims to introduce a novel classification system for GPs based on their potential risk of malignant transformation,categorizing them as"good","bad",and"ugly".A review of the literature and clinical case analysis were conducted to explore the clinical implications,management strategies,and the system's application in endoscopic *** polyps,mainly including fundic gland polyps and inflammatory fibrous polyps,have a low risk of malignancy and typically require minimal or no *** polyps,mainly including hyperplastic polyps and adenomas,pose an intermediate risk of malignancy,necessitating closer monitoring or *** polyps,mainly including type 3 neuroendocrine tumors and early gastric cancer,indicate a high potential for malignancy and require urgent and comprehensive *** new classification system provides a simplified and practical framework for diagnosing and managing GPs,improving diagnostic accuracy,guiding individualized treatment,and promoting advancements in endoscopic *** some challenges,such as the risk of misclassification due to similar endoscopic appearances,this system is essential for the standardized management of *** also lays the foundation for future research into biomarkers and the development of personalized medicine.

关键词： Gastric polyps Classification Fundic gland polyps Inflammatory fibroid polyps Hyperplastic polyps Adenomas Neuroendocrine tumors Early gastric cancer Patient management

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Excellent high-temperature strength of (HfZrTiTaNb)C high-entropy carbide diffusion-bonded joint via in-situ alloying of Ni/Nb/Ni composite interlayer

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JOURNAL OF ADVANCED CERAMICS 2025年第1期14卷 127-133,136-139页

作者： Mu, Ruijie Wang, ying Niu, Shiyu sun, Kongbo Yang, Zhenwen Tianjin Univ Sch Mat Sci & Engn Tianjin Key Lab Adv Joining Technol Tianjin 300350 Peoples R China Minist Educ Key Lab Adv Ceram & Machining Technol Tianjin 300350 Peoples R China

To obtain high-entropy carbide (HEC) joints with excellent high-temperature performance, a (HfZrTiTaNb)C HEC joint featuring a direct diffusion-bonded interface with a Nb-based interlayer was successfully fabricated at relatively low temperatures of 1150-1250 degrees C for 60 min under 10 MPa. Starting from a modified Ni/Nb/Ni composite interlayer with a Nb content of > 64 at%, an alloyed Nb2Ni layer was constructed in situ by accelerating the directional diffusion of Ni atoms from the high-entropy interface into the remaining pure Nb through the Ni-Nb eutectic liquid. Moreover, the excess liquid phase was squeezed out of the bonding region, ensuring the absence of Ni-based compounds. Leveraging the intrinsic interfacial stability and sluggish diffusion effect, the HEC with its original lattice structure, was capable of developing diffusion bonding with the Nb2Ni layer instead of interacting with the liquid phase. The high reliability of the HEC/Nb2Ni bonded interface was confirmed by the coherence of (1 3) (HEC)// (141) (Nb2Ni) and a calculated lattice misfit of 0.044. The HEC joint had a high room-temperature strength of 174 MPa because of the homogenous Nb2Ni layer, which exhibited nanohardness (15.2 +/- 1.5 GPa) and an elastic modulus of 219.9 +/- 17.5 GPa. Furthermore, the strength of the HEC joint did not decrease at 1000 degrees C, increasing by similar to 49% over that of HEC/Ni/HEC diffusion-bonded joints, which have stringent surface flatness requirements. This suggested that the HEC/Nb2Ni interface had excellent resistance to high-temperature softening, even though it was invariably the initial failure location. This work is informative for designing bonding structures and preparing HEC components.

关键词： high-entropy ceramic diffusion bonding in situ alloyed interlayer mechanical properties

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Exposure of individuals aged 18-44 years to personal care products in Beijing,China:Exposure profiles,possible influencing factors,and risk assessment

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Journal of Environmental Sciences 2025年第2期148卷 691-701页

作者： Xu Zhang Linxue Han Qi sun Xiaochen Wang Xiaojian Hu Xiao Lin ying Zhu China CDC Key Laboratory of Environment and Population Health National Institute of Environmental HealthChinese Center for Disease Control and PreventionBeijing 100021China The Bureau for Health Inspection and Supervision of Haidian District Beijing 100037China

Personal care products(PCPs)are a class of emerging pollutants that have attracted public concern owing to their harmful effects on humans and the *** data is valuable for insight the levels of PCPs in the human body and can be crucial for identifying potential health *** gain a better understanding of timely exposure profiles and health risk of reproductive-age population to PCPs,we determined six parabens,six benzophenone-type ultraviolet filters,and three disinfectants in 256 urine samples collected from young adults aged 18-44 years in Beijing,*** urinary levels of benzophenone-3(BP-3)and 4-hydroxybenzophenone(4-OHBP)were significantly higher in summer compared to winter,suggesting these compounds have different seasonal usage ***,the total concentration of 15 PCPs in female was 430 ng/mL,approximately two times higher than that in male.P-chloro-m-xylenol(PCMX),as a new type of antibacterial agent,has the greatest level among all target analytes,indicating the increasingly use of this antibacterial alternative *** potential influencing factors that lead to the elevated exposure level of PCPs were *** 19%of the target population had a high hazard index value(greater than 1)which was attributed to exposure to propyl paraben(PrP),benzophenone-1(BP-1),BP-3 and PCMX,indicating that PCPs may pose a relatively high exposure risk at environmental levels that should be a cause for concern.

关键词： Personal care products Hazard quotient Risk assessment Exposure patterns Urine

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Flexible molecules dedicate to release strain of inverted inorganic perovskite solar cell

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Journal of Energy Chemistry 2025年第1期100卷 87-93页

作者： Hongrui sun Sanlong Wang Pengyang Wang Yali Liu Shanshan Qi Biao Shi ying Zhao Xiaodan Zhang Institute of Photoelectronic Thin Film Devices and Technology Renewable Energy Conversion and Storage CenterState Key Laboratory of Photovoltaic Materials and CellsNankai UniversityTianjin 300350China Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin Tianjin 300350China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of Education Tianjin 300350China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin 300072China

The tensile strain in inorganic perovskite films induced by thermal annealing is one of the primary factors contributing to the inefficiency and instability of inorganic perovskite solar cells(IPSCs),which reduces the defect formation ***,a flexible molecule 5-maleimidovaleric acid(5-MVA)was introduced as a strain buffer to release the residual strain of CsPbI_(2.85)Br_(0.15)*** anhydride and carboxyl groups in 5-MVA interact strongly with the uncoordinated Pb^(2+)through Lewis acid-base reaction,thus tightly“pull”the perovskite *** in-between soft carbon chain increased the structural flexibility of CsPbI_(2.85)Br_(0.15)perovskite materials,which effectively relieved the intrinsic internal strain of CsPbI_(2.85)Br_(0.15),resisted the corrosion of external strain,and also reduced the formation of defects such as VIand *** addition,the introduction of 5-MVA improved crystal quality,passivated residual defects,and narrowed energy level ***,power conversion efficiency(PCE)of NiOxbased inverted IPSCs increased from 19.25%to 20.82%with the open-circuit voltage enhanced from 1.164 V to 1.230 *** release of strain also improved the stability of CsPbI_(2.85)Br_(0.15)perovskite films and devices.

关键词： Inverted inorganic perovskite solar cells Flexible molecules Strain release Crystallization Energy barrier High PCE

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Distribution and Hydrogeochemical Characteristic of High Iodine Groundwater in Oasis Zone in the Tarim Basin in Xinjiang,China

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Journal of Earth Science 2025年第1期36卷 173-183页

作者： ying sun Yinzhu Zhou Jinlong Zhou Yanyan Zeng Yuanyuan Ji Mi Lei College of Hydraulic and Civil Engineering Xinjiang Agricultural UniversityUrumqi 830052China Xinjiang Hydrology and Water Resources Engineering Research Center Urumqi 830052China Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention Urumqi 830052China Center for Hydrogeology and Environmental Geology China Geological SurveyTianjin 300304China Xinjiang Agricultural Professional Technological College Changji 831100China

Groundwater is the main water supply source in the Tarim Basin in *** disease caused by high iodine(I)groundwater in the Tarim Basin was reported ***,it is crucial to systematically identify the distribution and genesis of groundwater *** on hydrochemical analysis of 717 groundwater samples collected in 2015–2018,spatial distribution and hydrogeochemistry characteristic of high I groundwater in different aquifers were *** showed that groundwater I ranged between100.00μg/L)accounted for 7.25%of the total ***,groundwater I significantly increased from recharge zone(RZ)to transition zone(TZ)and to evaporation zone(EZ).Vertically,groundwater in shallow confined aquifer(SCA)had the greatest I concentration,followed by single-structure phreatic aquifer(SSPA),phreatic aquifer in confined groundwater area(PACGA),while groundwater in deep confined aquifer(DCA)generally had low I *** I enrichment in SSPA was mainly affected by organic matter(OM)decomposition and that in SCA was mainly affected by evaporite mineral dissolution,OM decomposition under alkaline *** I enrichment in groundwater of PACGA was restrained under neutral *** sedimentary environment was crucial for I enrichment in ***,fine-grained lithology of aquifer,smooth topographic slope,shallow buried depth of groundwater,weak alkaline and reducing environment,reductive dissolution of iron oxide/hydroxide minerals and OM decomposition were advantageous to I enrichment in groundwater.

关键词： high iodine groundwater hydrogeochemical processes depositional environment hydrogeological condition Tarim Basin

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