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Light(Science & Applications) 2024年第2期13卷 333-346页

作者： yifan sun Qian Li Ling-Jun Kong Xiangdong Zhang Key Laboratory of advanced optoelectronic quantum architecture and measurements of Ministry of Education Beijing Key Laboratory of Nanophotonics&Ultrafine Optoelectronic SystemsSchool of PhysicsBeijing Institute of Technology100081BeijingChina

Compared with electrical neural networks,optical neural networks(ONNs)have the potentials to break the limit of the bandwidth and reduce the consumption of energy,and therefore draw much attention in recent *** far,several types of ONNs have been ***,the current ONNs cannot realize the acceleration as powerful as that indicated by the models like quantum neural *** to construct and realize an ONN with the quantum speedup is a huge ***,we propose theoretically and demonstrate experimentally a new type of optical convolutional neural network by introducing the optical *** is called the correlated optical convolutional neural network(COCNN).We show that the COCNN can exhibit“quantum speedup”in the training *** character is verified from the two *** is the direct illustration of the faster convergence by comparing the loss function curves of the COCNN with that of the traditional convolutional neural network(CNN).Such a result is compatible with the training performance of the recently proposed quantum convolutional neural network(QCNN).The other is the demonstration of the COCNN’s capability to perform the QCNN phase recognition circuit,validating the connection between the COCNN and the ***,we take the COCNN analog to the 3-qubit QCNN phase recognition circuit as an example and perform an experiment to show the soundness and the feasibility of *** results perfectly match the theoretical *** proposal opens up a new avenue for realizing the ONNs with the quantum speedup,which will benefit the information processing in the era of big data.

关键词： process quantum convolution

Systematic exploration of the applicability of the idiomatic vapor balance rule to distillation column consolidation

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Chinese Journal of Chemical Engineering 2020年第8期28卷 2121-2130页

作者： Shuo Zhang yifan sun Yiqing Luo Hongzhe Hou Xigang Yuan School of Chemical Engineering and Technology Tianjin UniversityTianjin 300350China Chemical Engineering Research Center Tianjin UniversityTianjin 300350China State Key Laboratory of Chemical Engineering Tianjin UniversityTianjin 300350China

For N-component distillation(N≥3),consolidation between different column sections is an inevitable manipulation when synthesizing complex distillation *** the consolidation,the idiomatic vapor balance(IVB)rule,in which the larger vapor flowrate in the two columns before consolidation will be chosen as the balanced vapor flowrate at the consolidation point,has been widely ***,the applicability of the IVB rule has not been verified,which is of essential importance to the accuracy of the distillation configuration *** the present study,the applicability of the IVB rule to distillation column consolidation was systematically explored by rigorous method for the first ***,the separation of ideal and non-ideal three-component mixtures with variable compositions was studied,and the optimized configurations before and after consolidation were determined by a rigorous *** results indicated that for the separation of an ideal mixture,the IVB rule was applicable for the whole composition range,while for the separation of a non-ideal mixture,the IVB rule was only applicable for very limited composition ***,two cases of synthesizing distillation configurations for the separation of non-ideal mixtures were studied to verify the remarkable deviations the IVB rule may *** results indicated that the applicability of the shortcut method using the IVB rule to the distillation configuration synthesis depended on the composition of the non-ideal mixture,and a remarkable error might result and the truly optimal configuration might be missed if the IVB rule is applied to a non-ideal mixture.

关键词： Distillation configuration Column consolidation Vapor flowrate balance Rigorous optimization

G-forward performance process and representation of homothetic case via ergodic quadratic G-BSDE

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Probability, Uncertainty and Quantitative Risk 2024年第1期9卷 85-106页

作者： yifan sun Falei Wang Department of Applied Mathematics The Hong Kong Polytechnic UniversityKowloonHong KongChina Zhongtai Securities Institute for Financial Studies and School of Mathematics Shandong UniversityJinan 250100China

We introduce a new type of robust forward criterion under model uncertainty,called the G-forward performance process,which extends the classical notion of forward performance process to the G-expectation *** then derive the representations of homothetic G-forward performance processes in a single stochastic factor model with uncertainty,building on the well-posedness of ergodic and infinite horizon backward stochastic differential equations driven by G-Brownian motion(G-BSDEs)with quadratic generators.

关键词： G-forward performance process Infinite horizon G-BSDE Ergodic G-BSDE

Improved utilization of active sites for phosphorus adsorption in FeOOH/anion exchanger nanocomposites via a glycol-solvothermal synthesis strategy

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Journal of Environmental Sciences 2022年第1期34卷 313-323页

作者： Yi Zhang Qiong Tang yifan sun Chenxu Yao Zhen Yang Weiben Yang School of Chemistry and Materials Science Jiangsu Provincial Key Laboratory of Material Cycling and Pollution ControlNanjing Normal UniversityNanjing 210046China

Metal oxide/hydroxide-based nanocomposite adsorbents with porous supporting matrices have been recognized as efficient adsorbents for phosphorus *** at satisfying increasingly restrictive environmental requirements involving improving metal site utilization and lowering metal leakage risk,a glycol-solvothermal confined-space synthesis strategy was proposed for the fabrication of Fe OOH/anion exchanger nanocomposites(Fe/900s)with enhanced metal site utilization and reduced metal leakage *** to composites prepared using alkaline precipitation methods,Fe/900s performed comparably,with a high adsorption capacity of 19.05 mg-P/g with an initial concentration of 10 mg-P/L,a high adsorption selectivity of 8.2 mg-P/g in the presence of 500 mg-SO_(4)^(2-)/L,and high long-term resilience(with a capacity loss of~14%after five cycles),along with substantially lower Fe loading amount(4.11 wt.%)and Fe leakage *** investigation demonstrated that contribution of the specific Fe OOH sites to phosphate adsorption increased substantially(up to 50.97%under the optimal conditions),in which Fe(Ⅲ)-OH was the dominant efficient *** side effects of an excessively long reaction time,which included quaternary ammonium decomposition,Fe OOH aggregation,and Fe(Ⅲ)reduction,were discussed as guidance for optimizing the synthesis *** glycol-solvothermal strategy provides a facile solution to environmental problems through nanocrystal growth engineering in a confined space.

关键词： Phosphate adsorption Nanocomposite adsorbent Metal site utilization Metal hydroxides/oxides Ethylene glycol-solvothermal confined-space synthesis

Hydrothermal carbonization pretreatment makes a remarkable difference in activation of rice and lettuce in food waste

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Green Chemical Engineering 2024年第3期5卷 348-363页

作者： Lijun Zhang yifan sun Chao Li Shu Zhang Mortaza Gholizadeh Xun Hu School of Material Science and Engineering University of JinanJinan250022China Joint International Research Laboratory of Biomass Energy and Materials College of Materials Science and EngineeringNanjing Forestry UniversityNanjing210037China Faculty of Chemical and Petroleum Engineering University of TabrizTabrizIran

Cooked rice and the vegetables like lettuce are common kitchen waste,which are carbonaceous materials and have the potential as feedstock for the production of activated *** is similar to hydrothermal treatment(HTC),which might impact the subsequent activation of kitchen *** this study,the HTC of lettuce,rice,or their mixture and the activation of the resulting hydrochars were *** results indicated that cross-polymerization between the N-containing organics from lettuce and the sugar derivatives from rice took place in their co-HTC,which significantly increased the hydrochar *** of the hydrochar from the coHTC generated the AC with a yield of 2 times that from direct activation of mixed lettuce/***,the coHTC facilitated aromatization,reducing reactivity with K2C2O4in activation and producing the AC with main micropores and low specific surface *** of the hydrochar from HTC of rice followed the above trend,while that from lettuce was the *** organics in lettuce were thermally unstable and could not undergo sufficient *** activation of hydrochar from HTC of lettuce thus generated the AC with the lowest yield,but the highest specific surface area(1684.9 m2/g),abundant mesopores,and superior capability for adsorption of ***,the environmental impacts and energy consumption for the production of AC from the hydrochar of lettuce were higher than that from hydrochar of co-HTC.

关键词： Food waste Hydrothermal pretreatment Hydrochar Chemical activation Products properties

骨盆矫正手法干预特发性脊柱侧弯的下肢生物力学机制分析

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中医康复 2025年第2期2卷 46-50页

作者：孙漪凡陈少清王宇陈柏瑞苟艳芸福建中医药大学福建福州350122

目的:观察骨盆矫正手法合并Schroth运动训练治疗特发性脊柱侧弯的疗效,并分析其生物力学机制。方法:将80例特发性脊柱侧弯患者随机分为试验组和对照组各40例,试验组采用骨盆矫正手法合并Schroth运动训练,对照组仅给予Schroth运动训练,... 详细信息

目的:观察骨盆矫正手法合并Schroth运动训练治疗特发性脊柱侧弯的疗效,并分析其生物力学机制。方法:将80例特发性脊柱侧弯患者随机分为试验组和对照组各40例,试验组采用骨盆矫正手法合并Schroth运动训练,对照组仅给予Schroth运动训练,干预前后测量Cobb角、步态时空参数、动力学参数、运动学参数以分析临床疗效和生物力学机制。结果:干预后,试验组脊柱Cobb角减小程度优于对照组(P0.05);干预后,试验组凹侧髋关节力矩最大值较干预前和对照组减小(P<0.05)、凸侧膝关节力矩最大值较干预前和对照组增大(P<0.05);干预后,试验组膝关节凹侧的屈伸活动度显著减少,踝关节凹侧的背跖屈活动度显著增加(P<0.05)。结论:在Schroth运动训练基础上,骨盆矫正手法可显著改善特发性脊柱侧弯的脊柱畸形,其疗效机制可能是通过调整髋关节负荷,使受力平衡,进而间接改善脊柱侧弯角度,延缓侧弯进展。

关键词：特发性脊柱侧弯骨盆矫正手法 Schroth运动训练生物力学青少年作用机制

Cross-interaction of volatiles from co-pyrolysis of lignin with pig manure and their effects on properties of the resulting biochar

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Biochar 2021年第3期3卷 391-405页

作者： Chao Li yifan sun Lijun Zhang Changxu Wang Shu Zhang Qiaoling Li Leilei Xu Xun Hu School of Material Science and Engineering University of JinanJinan 250022People’s Republic of China Joint International Research Laboratory of Biomass Energy and Materials Co-Innovation Center of Efficient Processing and Utilization of Forest ResourcesCollege of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037China Technology Center China Tobacco Fujian Industrial CompanyXiamen 361021FujianPeople’s Republic of China School of Environmental Science and Technology Nanjing University of Information Science and TechnologyNanjing 210000People’s Republic of China

Biomass and pig manure have distinct compositions and the co-pyrolysis of them has gained much ***,the influence of volatiles interaction on the properties of the char was still *** this study,lignin was selected as the model component of biomass with pig manure for co-pyrolysis at 600°*** results indicate that volatiles from co-pyrolysis promoted re-condensation reaction,resulting in the higher char yield(48.0%in co-pyrolysis versus 31.0%in pyrolysis of single manure)and the formation of more aromatics in *** co-pyrolysis also facilitated the dehydrogenation and dehydration reactions,which accounted for the elimination of oxygen and nitrogen contents and thus a higher carbon content(64.7%in the co-pyrolysis versus the averaged value of 46.4%from the pyrolysis of single feedstock),higher crystallinity and thermal stability of the *** in-situ diffuse reflection infrared Fourier transform spectroscopy(DRIFTS)characterization results demonstrated that the functionalities abundances of char with temperature was influenced by volatiles interaction via accelerating the carbonization *** addition,the high heating value(HHV)of char was obviously improved by cross-interaction of volatiles during co-pyrolysis(24.4 MJ/Kg in co-pyrolysis versus averaged value of 15.1 MJ/Kg from single pyrolysis),implying that the co-pyrolysis enhanced the energy density of the resulting char.

关键词： Co-pyrolysis Lignin and pig manure Volatiles interaction Char properties Reaction network

Research Progress of Biomass-Based Porous Oil-Absorbing Materials

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Journal of Renewable Materials 2024年第11期12卷 1837-1856页

作者： yifan sun Yuanyuan Zhang Ziyi Tian Hailang Liu Siying Chen Xujuan Huang Zhaosheng Cai Bo Fang School of Chemistry and Chemical Engineering Yancheng Institute of TechnologyYancheng224051China Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical EngineeringNanjing Forestry UniversityNanjing210037China Department of Technology Yancheng Tongwei Solar Energy Co.Ltd.Yancheng224000China

As oil is now an important resource for the survival and development of mankind,the consumption of oil continues to increase each year,and there have been a number of major oil spills in history,such as the oil spill from the Deepwater Horizon drilling ***,oil spills during storage and transportation have become an issue of serious *** methods such as incineration and chemical methods cause secondary environmental pollution and fail to enable resource *** adsorption method by porous materials has attracted worldwide attention due to its simplicity,portability,and *** has become an important factor to explore how porous adsorption materials can adsorb efficiently and reduce environmental *** resources are abundant,cost-effective,biodegradable,and sustainable,which have been extensively explored for the production of porous ***,recent advances in cellulose-based,chitosan-based,wood-based and other biomassbased oil-absorbing porous materials are summarized,and cellulose-based porous materials,such as nanocellulose,bacterial cellulose,and regenerated cellulose and their related derivatives,are further *** addition,typical environmentally friendly manufacturing methods and the oil adsorption capacities of various oil-absorbing porous materials are also *** with the traditional petrochemical adsorption materials,the development advantages of biomass porous oil absorption materials are *** reasons hindering the popularization and use of oil-absorbing biomass materials are summarized and the future application fields are prospected.

关键词： Biomass cellulose chitosan wood oil-absorbing materials

OTT Industry Development in China

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Journalism and Mass Communication 2019年第4期9卷 164-175页

作者： LI Zhenhui sun yifan School of Economics and Management Communication University of ChinaBeijingChina

This is an era of rapid development and upgrading of the *** innovation has promoted the application of Internet and intelligent technology in TV *** the policy encouragement and regulation,the OTT(Over The Top)industry has grown more vigorously than ever *** the steadily constant improvement of people’s consumption level,the new living room economy began to *** essay focuses on the key parts in the OTT industry *** the analysis of the advantages and disadvantages of the OTT industry development,it finds the characteristics and existing *** the status quo,this essay gives the prospect of future OTT industry integration and the improvement of the comprehensive development level.

关键词： OTT industry TV screens media convergence