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激光技术在食品3D打印中的应用及发展趋势

食品科学 2025年第1期46卷 315-321页

作者：童强肖帅磊姜宇董秀萍庞桂兵大连工业大学机械工程与自动化学院辽宁大连116034 海洋食品加工与安全控制全国重点实验室国家海洋食品工程技术研究中心辽宁省海产品精深加工产业共性技术创新平台大连市中式预制食品技术创新中心辽宁大连116034 大连工业大学食品交叉科学研究院辽宁大连116034

随着食品3D打印技术的快速发展,各种辅助技术与其结合的创新应用越来越受关注。激光技术具有精确、高能量和快速实现材料成型等特点,与食品3D打印技术的个性化定制优势高度契合,两者的结合在食品加工领域展现出巨大的应用前景。本文在... 详细信息

随着食品3D打印技术的快速发展,各种辅助技术与其结合的创新应用越来越受关注。激光技术具有精确、高能量和快速实现材料成型等特点,与食品3D打印技术的个性化定制优势高度契合,两者的结合在食品加工领域展现出巨大的应用前景。本文在介绍食品3D打印技术和激光技术发展现状的基础上,着重阐述激光技术在食品3D打印中的应用,包括激光参数(如波长、功率、脉冲等)和工艺优势。同时,指出激光技术在食品3D打印应用中所面临的挑战,如激光照射下的食品安全、应用局限等问题。最后,对激光技术和食品3D打印技术深度融合的发展趋势进行总结与展望,指明未来发展方向,为激光技术在食品3D打印领域的创新应用提供理论参考。

关键词：食品3D打印增材制造激光技术食品加工

Fast nonnegative tensor ring decomposition based on the modulus method and low-rank approximation

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Science China(Technological Sciences) 2021年第9期64卷 1843-1853页

作者： yu yuyuan xie Kan yu JinShi JIANG Qi xie ShengLi School of Automation Guangdong University of TechnologyGuangzhou 510006China Guangdong-Hong Kong-Macao Joint Laboratory for Smart Manufacturing Guangzhou 510006China Key Laboratory of Intelligent Detection and The Internet of Things in Manufacturing Ministry of EducationGuangzhou 510006China Guangdong Key Laboratory of IoT Information Technology Guangdong University of TechnologyGuangzhou 510006China

Nonnegative tensor ring(NTR) decomposition is a powerful tool for capturing the significant features of tensor objects while preserving the multi-linear structure of tensor data. The existing algorithms rely on frequent reshaping and permutation operations in the optimization process and use a shrinking step size or projection techniques to ensure core tensor nonnegativity, which leads to a slow convergence rate, especially for large-scale problems. In this paper, we first propose an NTR algorithm based on the modulus method(NTR-MM), which constrains core tensor nonnegativity by modulus transformation. Second, a low-rank approximation(LRA) is introduced to NTR-MM(named LRA-NTR-MM), which not only reduces the computational complexity of NTR-MM significantly but also suppresses the noise. The simulation results demonstrate that the proposed LRA-NTR-MM algorithm achieves higher computational efficiency than the state-of-the-art algorithms while preserving the effectiveness of feature extraction.

关键词： nonnegative tensor ring decomposition modulus method low-rank approximation

Steady-state teleportation fidelity and Bell nonlocality in dissipative environments

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Communications in Theoretical Physics 2021年第7期73卷 75-80页

作者： yu-Xia xie School of Science Xi’an University of Posts and TelecommunicationsXi’an 710121China

We investigate quantum teleportation and Bell nonlocality for two channel qubits coupled via the Heisenberg interaction and subject to two independent dissipative *** with the case of two uncoupled qubits,it is shown that the interaction Hamiltonian is beneficial for enhancing the teleportation fidelity and Bell nonlocality,and remarkably,it can also be used to create nonclassical teleportation fidelity and Bell nonlocality even from the initial product ***,the interaction Hamiltonian guarantees the generation of steady-state nonclassical teleportation fidelity,which is independent of the initial state and therefore one can take any state as the initial channel state.

关键词： quantum teleportation Bell inequality decoherence

扣囊复膜酵母麸曲制备及其在小曲白酒中的应用

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食品科学 2025年第1期46卷 56-63页

作者：刘霄黄治国卫春会任志强谢军邓杰四川轻化工大学酿酒生物技术及应用四川省重点实验室四川宜宾644000 中国轻工业酿酒生物技术及智能制造重点实验室四川宜宾644000

为提高小曲白酒中乙酸乙酯的含量,以大曲中分离的一株产酯能力较强的扣囊复膜酵母M1为出发菌株,将其制备为麸曲(M1麸曲)并用于小曲白酒酿造,分析M1麸曲强化发酵对小曲白酒挥发性风味组分的影响。结果表明:M1麸曲最佳培养条件为:水分质... 详细信息

为提高小曲白酒中乙酸乙酯的含量,以大曲中分离的一株产酯能力较强的扣囊复膜酵母M1为出发菌株,将其制备为麸曲(M1麸曲)并用于小曲白酒酿造,分析M1麸曲强化发酵对小曲白酒挥发性风味组分的影响。结果表明:M1麸曲最佳培养条件为:水分质量分数40%、培养温度28℃、麸皮初始酸度6 mmol/100 g、培养时间48 h;酿造实验结果显示,添加M1麸曲显著提高了实验组(K组)乙酸和乙酸乙酯的含量(P<0.05),极显著降低了异丁醇和异戊醇的含量(P<0.01);通过对微生物群落结构的分析表明,对照组和K组酒醅的微生物群落演替规律存在差异,K组扣囊复膜酵母属和魏斯氏菌属相对丰度增加;同时通过PICRUSt2功能预测分析,验证了K组参与乙酸和乙酸乙酯代谢的酶丰度更高。通过麸曲为介质将扣囊复膜酵母M1应用到小曲发酵可有效提高小曲白酒乙酸乙酯的含量,对提高小曲白酒质量具有一定参考意义。

关键词：扣囊复膜酵母麸曲小曲白酒挥发性物质

Dual-channel mechano-phosphorescence:a combined locking effect with twisted molecular structures and robust interactions

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Light(Science & Applications) 2024年第4期13卷 738-746页

作者： Zongliang xie Zhu Mao Hailan Wang yuxin xiao Xiayu Zhang Tao yu Zhongfu An Wei Huang Frontiers Science Center for Flexible Electronics Xi’an Institute of Flexible Electronics&Xi’an Institute of Biomedical Materials and EngineeringNorthwestern Polytechnical University127 West Youyi RoadXi’an 710072China. Research&Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen 518100China. Shenzhen Institutes of Advanced Electronic Materials Shenzhen 518100China. Key Laboratory of Flexible Electronics&Institute of Advanced Materials Nanjing Tech University30 South Puzhu RoadNanjing 211816China

Organic mechanoluminescence materials,featuring dual emission and ultralong phosphorescence characteristics,exhibit significant potential for applications in real-time stress sensing,pressure-sensitive lighting,advanced security marking techniques,and material breakage ***,due to immature molecular design strategies and unclear luminescence mechanisms,these materials remain rarely *** this study,we propose a valuable molecular design strategy to achieve dual-channel *** introducing the arylphosphine oxide group into a highly twisted molecular framework,enhanced intra-and intermolecular interactions could be achieved within rigid structures,leading to dual-channel mechanoluminescence with greatly promoted ultralong *** investigations reveal the substantial boosting effect of intra-and intermolecular interactions on mechanoluminescence and ultralong phosphorescence properties by locking the highly twisted molecular *** work provides a concise and guiding route to develop novel smart responsive luminescence materials for widespread applications in material science.

关键词： channel luminescence locking

Acoustic emission detection of 316L stainless steel welded joints during intergranular corrosion

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International Journal of Minerals,Metallurgy and Materials 2015年第9期22卷 942-949页

作者： Meng-yu Chai Quan Duan Wen-jie Bai Zao-xiao Zhang Xu-meng xie School of Chemical Engineering and Technology Xi'an Jiaotong University Zhejiang Provincial Special Equipment Inspection Institute

This study analyzes acoustic emission （AE） signals during the intergranular corrosion （IGC） process of 316L stainless steel welded joints under different welding currents in boiling nitric acid. IGC generates several AE signals with high AE activity. The AE technique could hardly distinguish IGC in stainless steel welded joints with different welding heat inputs. However, AE signals can effectively distinguish IGC characteristics in different corrosion stages. The IGC resistance of a heat-affected zone is lower than that of a weld zone. The initiation and rapid corrosion stages can be distinguished using AE results and microstructural analysis. Moreover, energy count rate and amplitude are considered to be ideal parameters for characterizing different IGC processes. Two types of signals are detected in the rapid corrosion stage. It can be concluded that grain boundary corrosion and grain separation are the AE sources of type 1 and type 2, respectively.

关键词： stainless steel intergranular corrosion acoustic emission microstructure weight loss

A Monte Carlo study of the spectra from inhomogeneous accretion flow

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Research in Astronomy and Astrophysics 2017年第8期17卷 101-108页

作者： xiao-Di yu Ya-Ping Li Fu-Guo xie Ren-Yi Mai Department of Astronomy and Institute of Theoretical Physics and Astrophysics Xiamen University Xiamen 361005 China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical Observatory Chinese Academyof Sciences Shanghai 200030 China SHAO-XMU Joint Center for Astrophysics Xiamen 361005 China

A model of an inhomogeneous accretion flow,in which cold clumps are surrounded by hot gas or corona,has been proposed to explain the spectral features of black hole X-ray *** this work,we try to find possible observational features in the continuum that can indicate the existence of *** spectra of an inhomogeneous accretion flow are calculated via the Monte Carlo *** the corresponding accretion flow is unsteady and complex,the accretion flow is described by a set of free parameters,the ranges of which can include the real *** influences of the parameters are *** is found that the thermal component of the spectra deviates from multi-color black body spectra in the middle power-law *** one hand,a warp appears due to the gaps between the clumps and the outer cold disk,and on the other hand,the slope of the line connecting the thermal peaks deviates from 4/*** warp feature,as well as the correlation between the thermal peak at higher frequency and the spectral index,possibly indicate the existence of clumps,and are worthy of further investigation with more self-consistent models.

关键词： accretion accretion disks—X-rays binaries—stars black holes

A multistandard and resource-efficient Viterbi decoder for a multimode communication system

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Frontiers of Information Technology & Electronic Engineering 2018年第4期19卷 536-543页

作者： Yi-qi xie Zhi-guo yu Yang FENG Lin-na ZHAO xiao-feng GU MOE Engineering Research Center of IoT Technology Applications Wuxi 214122China Department of Electronic Engineering Jiangnan UniversityWuxi 214122China

We present a novel standard convolutional symbols generator(SCSG)block for a multi-parameter reconfigurable Viterbi decoder to optimize resource consumption and adaption of multiple *** SCSG block generates all the states and calculates all the possible standard convolutional symbols corresponding to the states using an iterative *** architecture of the Viterbi decoder based on the SCSG reduces resource consumption for recalculating the branch metrics and rearranging the correspondence between branch metrics and transition *** proposed architecture supports constraint lengths from 3 to 9,code rates of 1/2,1/3,and 1/4,and fully optional *** proposed Viterbi decoder has been implemented on the Xilinx XC7VX485T device with a high throughput of about 200 Mbps and a low resource consumption of 162k logic gates.

关键词： Reconfigurable Viterbi decoder Multi-parameter Low resource consumption Standard convolutional symbols generator(SCSG) Fully optional polynomials

Recent progress in single crystal perovskite X-ray detectors

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Science China(Information Sciences) 2024年第3期67卷 5-19页

作者： xiao LIU Jun REN yu-Ang CHEN Xiangshun GENG Dan xie Tian-Ling REN Beijing National Research Center for Information Science and Technology (BNRist) School of Integrated CircuitsTsinghua University

Perovskites have attracted extensive attention as radiation detection material due to their long carrier diffusion length and lifetime, high absorption coefficient, and flexible manufacturing process. Compared with polycrystalline structures, single crystal perovskites improve the performance of optoelectronic devices due to their low defect state density, better photoelectric characteristics, and chemical ***, we review the recent progress of single crystal perovskite X-ray detectors. First, we briefly introduced the basic concepts, detection mechanisms, figure of merits of perovskite X-ray detectors, and the preparation methods of single crystal perovskites. Then, we summarized the significant advancements in single crystal perovskite X-ray detectors in recent times. Finally, we discussed the critical challenges and some practicable solutions for developing high-performance X-ray detectors.

关键词： single crystal perovskites carrier transport radiation detection X-ray detectors X-ray imaging

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