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Mg_(3)(Bi,Sb)_(2)-based thermoelectric modules towards near-room temperature cooling and power generation

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Journal of Materiomics 2022年第6期8卷 1218-1221页

作者： Gang Wang jiawei yang Huaizhou Zhao Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing100049China

*** Heat-flow-driven Seebeck effect and electric-potential-driven Peltier effect collectively decide whether the thermoelectric device(TED)could function availably or ***,the primary parameters that evaluate the performance of TED are COP(coeffi-cient of performance)(c)and power conversion efficiency(h),which strongly depend on the figure of merit ZT of *** three coupled parameters could be inferred from.

关键词： materials. collective effect

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南方丘陵山地泡桐人工林的土壤肥力

东北林业大学学报 2025年第1期53卷 128-133,146页

作者：庞宏东王瑞文杨佳伟黄颖李玲湖北省林业科学研究院武汉430075

以南方丘陵山地泡桐人工林为研究对象,按照全国第二次土壤普查分级标准对南方丘陵山地泡桐人工林土壤养分整体情况进行评级,并采用主成分分析法对南方丘陵山地泡桐人工林土壤肥力进行综合评价。结果表明:南方丘陵山地泡桐人工林土壤的... 详细信息

以南方丘陵山地泡桐人工林为研究对象,按照全国第二次土壤普查分级标准对南方丘陵山地泡桐人工林土壤养分整体情况进行评级,并采用主成分分析法对南方丘陵山地泡桐人工林土壤肥力进行综合评价。结果表明:南方丘陵山地泡桐人工林土壤的全氮、碱解氮的平均质量分数分别为1.21 g·kg^(-1)、113.66 mg·kg^(-1),整体处于中上等级水平;全钾、速效钾、有机质的平均质量分数分别为13.07 g·kg^(-1)、68.17 mg·kg^(-1)、18.50 g·kg^(-1),整体处于中下等级水平;全磷平均质量分数为0.35 g·kg^(-1),整体处于低水平等级;有效磷的平均质量分数为2.68 mg·kg^(-1),整体处于很低等级水平。主成分分析结果表明:南方丘陵山地泡桐人工林的土壤综合肥力得分范围为-1.97~2.59,利用聚类分析法,可将115个样地土壤肥力划分为极高、高、中、低4个等级,各等级样地所占比例分别为6.09%、31.30%、43.48%、19.13%,说明土壤综合肥力以中等水平为主。不同种植区之间,土壤综合肥力差异较大,其中湖北省京山市、荆门市、钟祥市、咸宁市,泡桐人工林的土壤综合肥力整体水平最高;而湖北省崇阳县土壤综合肥力整体水平最差。

关键词：泡桐土壤肥力主成分分析

Micromechanical interlocking structure at the filler/resin interface for dental composites: a review

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International Journal of Oral Science 2023年第2期15卷 204-216页

作者： Shuning Zhang Xiao Wang jiawei yang Hongyan Chen Xinquan Jiang Department of Prosthodontics Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of Medicine College of Stomatology Shanghai Jiao Tong University Shanghai Engineering Research Center of Advanced Dental Technology and Materials National Center for Stomatology National Clinical Research Center for Oral Diseases Shanghai Key Laboratory of Stomatology Shanghai Research Institute of Stomatology ShanghaiChina

Dental resin composites(DRCs)are popular materials for repairing caries or dental defect,requiring excellent properties to cope with the complex oral ***/resin interface interaction has a significant impact on the phy... 详细信息

关键词： composites resin interface

Factors affecting poplar wetwood characteristics

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Journal of Forestry Research 2023年第5期34卷 1615-1626页

作者： Qilin Zhang Xingyi Hu Qian Hu jiawei yang Tianyu Zhao Kebing Du College of Horticulture and Forestry Sciences/Hubei Engineering Technology Research Center for Forestry Information Huazhong Agricultural UniversityWuhan 430070People’s Republic of China Hubei Academy of Forestry Wuhan 430075People’s Republic of China Xiangyang Academy of Forestry Xiangyang 441052People’s Republic of China

Wet wood is an abnormal phenomenon in growing trees,which adversely affects growth,subsequent wood processing and economic values of wood *** this study,the influences of factors such as clones,afforestation methods,site conditions and climate conditions on the characteristics of poplar wetwood were studied through field investigations in 27 clones from 48 sample plots in 28 *** showed that the incidences of wetwood were almost 100%in all *** of wetwood area among the48 plots differed from 15.1 to 90.2%.Wetwood area ratios,moisture contents and pH differed significantly between the 27 *** area ratios of the clones ranged from18.7 to 62.3%.Ratios of wetwood areas were positively correlated with wet wood moisture content and pH,tree age,and negatively correlated with pH of sap *** repeatability of wet wood area ratios was 0.52,moderately controlled by *** moisture content and pH were highly controlled by genetics,indicated by the repeatability of 0.91 and 0.89,*** were significant differences in wetwood area ratios,moisture content and pH between different site conditions,afforestation methods,and geographical *** land had the lowest wetwood area ratios and moisture content among four types of *** by direct seeding and rooted cuttings had the lowest wetwood area ratios and moisture content,*** the three geographical regions,the Yellow River Basin had the lowest wetwood values of all three factors.

关键词： Poplar Wetwood Clones Site conditions Afforestation methods

Solid-state Li-air batteries:Fundamentals,challenges,and strategies

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SmartMat 2023年第4期4卷 105-144页

作者： Yuan Rao jiawei yang Shiyong Chu Shaohua Guo Haoshen Zhou Jiangsu Key Laboratory of Artificial Functional Materials National Laboratory of Solid State Micro‐StructuresCollaborative Innovation Center of Advanced Micro‐StructuresCentral Universities and Frontiers Science CenterCollege of Engineering and Applied SciencesNanjing UniversityNanjingJiangsuChina Shenzhen Research Institute Nanjing UniversityShenzhenGuangdongChina

The landmark Net Zero Emissions by 2050 Scenario requires the revolution of today's energy system for realizing nonenergy-related global *** batteries with high energy density and safety are expected to realize the shift of end-use sectors toward renewable and clean sources of *** Li-ion technologies have dominated the modern energy market but face with looming challenges of limited theoretical specific capacity and high ***-air(O2)battery,characterized by energy-rich redox chemistry of Li stripping/plating and oxygen conversion,emerges as a promising“beyond Li-ion”*** view of the superior stability and inherent safety,a solid-state Li-air battery is regarded as a more practical choice compared to the liquid-state ***,there remain many challenges that retard the development of solid-state Li-air *** this review,we provide an in-depth understanding of fundamental science from both thermodynamics and kinetics of solid-state Li-air batteries and give a comprehensive assessment of the main *** discussion of effective strategies along with authoritative demonstrations for achieving highperformance solid-state Li-air batteries is presented,including the improvement of cathode kinetics and durability,solid electrolyte design,Li anode optimization and protection,as well as interfacial engineering.

关键词： interfacial engineering Li anode Li-air battery oxygen conversion solid electrolyte

An Injectable silk-based hydrogel as a novel biomineralization seedbed for critical-sized bone defect regeneration

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Bioactive Materials 2024年第5期35卷 274-290页

作者： Yuhui Zhu Hao Gu jiawei yang Anshuo Li Lingli Houh Mingliang Zhou Xinquan Jiang Department of Prosthodontics Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineNo.639 Zhizaoju RoadShanghai200011China College of Stomatology Shanghai Jiao Tong UniversityNo.115 Jinzun RoadShanghai200125China National Center for Stomatology No.639 Zhizaoju RoadShanghai200011China National Clinical Research Center for Oral Diseases No.639 Zhizaoju RoadShanghai200011China Shanghai Key Laboratory of Stomatology No.639 Zhizaoju RoadShanghai200011China Shanghai Research Institute of Stomatology No.639 Zhizaoju RoadShanghai200011China Shanghai Engineering Research Center of Advanced Dental Technology and Materials No.115 Jinzun RoadShanghai 200125China Shanghai Institute of Precision Medicine Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineNo.115 Jinzun RoadShanghai200125China

The healing process of critical-sized bone defects urges for a suitable biomineralization environment. However, the unsatisfying repair outcome usually results from a disturbed intricate milieu and the lack of in situ mineralization resources. In this work, we have developed a composite hydrogel that mimics the natural bone healing processes and serves as a seedbed for bone regeneration. The oxidized silk fibroin and fibrin are incorporated as rigid geogrids, and amorphous calcium phosphate (ACP) and platelet-rich plasma serve as the fertilizers and loam, respectively. Encouragingly, the seedbed hydrogel demonstrates excellent mechanical and biomineralization properties as a stable scaffold and promotes vascularized bone regeneration in vivo. Additionally, the seedbed serves a succinate-like function via the PI3K-Akt signaling pathway and subsequently orchestrates the mitochondrial calcium uptake, further converting the exogenous ACP into endogenous ACP. Additionally, the seedbed hydrogel realizes the succession of calcium resources and promotes the evolution of the biotemplate from fibrin to collagen. Therefore, our work has established a novel silk-based hydrogel that functions as an in-situ biomineralization seedbed, providing a new insight for critical-sized bone defect regeneration.

关键词： Silk fibroin Bone regeneration Hydrogel Biomineralization Platelet-rich plasma

Deep-learning based on-chip rapid spectral imaging with high spatial resolution

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Chip 2023年第2期2卷 26-33页

作者： jiawei yang Kaiyu Cui Yidong Huang Wei Zhang Xue Feng Fang Liu Department of Electronic Engineering Tsinghua UniversityBeijing 100084China Beijing National Research Center for Information Science and Technology(BNRist) Tsinghua UniversityBeijing 100084China Bejing Academy of Quantum Information Science Beijing 100084China

Spectral imaging extends the concept of traditional color cameras to capture images across multiple spectral channels and has broad ap-plication *** spectral cameras based on scanning methods suffer from the drawbacks of low acquisition speed and large ***-chip computational spectral imaging based on metasur-face filters provides a promising scheme for portable applications,but endures long computation time due to point-by-point iterative spec-tral reconstruction and mosaic effect in the reconstructed spectral *** this study,on-chip rapid spectral imaging was demonstrated,which eliminated the mosaic effect in the spectral image by deep-learning-based spectral data cube *** experimental results show that 4 orders of magnitude faster than the iterative spec-tral reconstruction were achieved,and the fidelity of the spectral re-construction for the standard color plate was over 99%for a standard color *** particular,video-rate spectral imaging was demon-strated for moving objects and outdoor driving scenes with good per-formance for recognizing metamerism,where the concolorous sky and white cars can be distinguished via their spectra,showing great po-tential for autonomous driving and other practical applications in the field of intelligent perception.

关键词： Spectral imaging Deep learning Metasurface

Single photon emitter deterministically coupled to a topological corner state

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Light(Science & Applications) 2024年第1期13卷 135-141页

作者： Mujie Rao Fulong Shi Zhixuan Rao jiawei yang Changkun Song Xiaodong Chen Jianwen Dong Ying Yu Siyuan Yu State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySchool of PhysicsSun Yat-Sen UniversityGuangzhou 510006China Hefei National Laboratory Hefei 230088China

Incorporating topological physics into the realm of quantum photonics holds the promise of developing quantum light emitters with inherent topological robustness and immunity to ***,the deterministic interaction of quantum emitters with topologically nontrivial resonances remains largely *** we present a single photon emitter that utilizes a single semiconductor quantum dot,deterministically coupled to a second-order topological corner state in a photonic crystal *** investigating the Purcell enhancement of both single photon count and emission rate within this topological cavity,we achieve an experimental Purcell factor of Fp=***,we demonstrate the on-demand emission of polarized single photons,with a second-order autocorrelation function g(2)(0)as low as 0.024±*** approach facilitates the customization of light-matter interactions in topologically nontrivial environments,thereby offering promising applications in the field of quantum photonics.

关键词： topological quantum deterministic

Ultra-low threshold continuous-wave quantum dot mini-BIC lasers

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Light(Science & Applications) 2023年第5期12卷 867-876页

作者： Hancheng Zhong Ying Yu Ziyang Zheng Zhengqing Ding Xuebo Zhao jiawei yang Yuming Wei Yingxin Chen Siyuan Yu State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySun Yat-Sen UniversityGuangzhou 510006China School of Physics Sun Yat-Sen UniversityGuangzhou 510275China

Highly compact lasers with ultra-low threshold and single-mode continuous wave(CW)operation have been a long sought-after component for photonic integrated circuits(PICs).Photonic bound states in the continuum(BICs),due to their excellent ability of trapping light and enhancing light-matter interaction,have been investigated in lasing configurations combining various BIC cavities and optical gain ***,the realization of BIC laser with a highly compact size and an ultra-low CW threshold has remained *** demonstrate room temperature CW BIC lasers in the 1310 nm O-band wavelength range,by fabricating a miniaturized BIC cavity in an InAs/GaAs epitaxial quantum dot(QD)gain *** enabling effective trapping of both light and carriers in all three dimensions,ultra-low threshold of 12μW(0.052 kW cm^(-2))is achieved at room ***-mode lasing is also realized in cavities as small as only 5×5 unit cells(~2.5×2.5μm^(2) cavity size)with a mode volume of 1.16(λ/n)^(3).The maximum operation temperature reaches 70℃ with a characteristic temperature of T_(0)~93.9 *** its advantages in terms of a small footprint,ultra-low power consumption,and adaptability for integration,the mini-BIC lasers offer a perspective light source for future PICs aimed at high-capacity optical communications,sensing and quantum information.

关键词： quantum lasing wave