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Occurrence, spatial distribution and ecological risks of antibiotics in soil in urban agglomeration

Journal of Environmental Sciences 2023年第3期125卷 678-690页

作者： Min Li Lei Yang Haw Yen Fangkai Zhao Xinmiao wang Tianhui Zhou Qingyu Feng Liding Chen State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China School of Forestry and Wildlife Sciences Auburn UniversityTexas 36849USA School of Ecology and Environmental Science Yunnan UniversityKunming 650500China

Antibiotics in soil environment are regarded as emerging pollutants and have introduced increasing risks to soil ecosystem and human health in rapid urbanization areas. Identifying the occurrence and spatial variability of antibiotics in soils is an urgent issue in sustaining soil security. In this study, antibiotics in soils were investigated and analyzed in BeijingTianjin-Hebei urban agglomeration. The occurrence, spatial distribution, and related affecting factors of antibiotics in soils were identified and ecological risks of antibiotics in soil environment were assessed. Results showed that(1) The mean concentration of soil antibiotics in Beijing-Tianjin-Hebei urban agglomeration was 21.79 μg/kg. Land use substantially affected the occurrence and concentration of antibiotics in soils. Concentrations of antibiotics in cropland and orchard soils were 2-3 times higher than the other land use types.(2)The concentrations of antibiotics in soils in Beijing-Tianjin-Hebei urban agglomeration presented a spatial pattern of high values in southeast, and low values in northwest. Spatial variability of antibiotics in soils was closely related to the application of organic fertilizer and wastewater irrigation as well as topographical features. Furthermore, soil properties and land management policy had substantial influences on soil antibiotics, and soil heavy metals may aggravate the accumulation of antibiotics in soils.(3) Ecological risks assessment of antibiotics in soils demonstrated that erythromycin(ERY), sulfamethoxazole(SMX), and doxycycline(DOX) may introduce high risks to soil ecosystem health, and more attention should be paid to the areas with intensive human activities that had potential high risk to soil ecosystem health. This study suggests that scientific land and soil management should be considered to prevent soil antibiotic pollution and sustain soil security in urban agglomeration.

关键词： Antibiotics Urban agglomeration Land use Land management Urban-rural environmental gradient

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A sparsity adaptive compressed signal reconstruction based on sensing dictionary

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Journal of Systems Engineering and Electronics 2021年第6期32卷 1345-1353页

作者： SHEN Zhiyuan wang Qianqian CHENG xinmiao College of Civil Aviation Nanjing University of Aeronautics and AstronauticsNanjing 210016China Zhejiang Scientific Research Institute of Transport Hangzhou 310023China Civil Aviation Branch Jiangsu Transportation InstituteNanjing 210003China

Signal reconstruction is a significantly important theoretical issue for compressed sensing.Considering the situation of signal reconstruction with unknown sparsity,the conventional signal reconstruction algorithms usually perform low accuracy.In this work,a sparsity adaptive signal reconstruction algorithm using sensing dictionary is proposed to achieve a lower reconstruction error.The sparsity estimation method is combined with the construction of the support set based on sensing dictionary.Using the adaptive sparsity method,an iterative signal reconstruction algorithm is proposed.The sufficient conditions for the exact signal reconstruction of the algorithm also is proved by theory.According to a series of simulations,the results show that the proposed method has higher precision compared with other state-of-the-art signal reconstruction algorithms especially in a high compression ratio scenarios.

关键词： compressed sensing signal reconstruction adaptive sparsity estimation sensing dictionary

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Fiber swelling to improve cycle performance of paper-based separator for lithium-ion batteries application

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Journal of Energy Chemistry 2023年第4期79卷 92-100页

作者： Zhenghao Li Wei wang xinmiao Liang Jianlin wang Yonglin Xu Wei Li College of Light Industry and Food Engineering Guangxi UniversityNanning 530004GuangxiChina Guangxi Key Laboratory of Clean Pulp&Papermaking and Pollution Control Nanning 530004GuangxiChina State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics National Center for Magnetic Resonance in WuhanWuhan Institute of Physics and MathematicsInnovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan 430071HubeiChina

It is well established that paper-based separators display short-circuit risk in lithium-ion batteries due to their intrinsic micron-sized pores.In this research,we have adjusted pore structure of paper by fiber swelling in liquid electrolyte.Specifically,the paper-based separator is prepared by propionylated sisal fibers through a wet papermaking process.Scanning electron microscope(SEM)and multi-range X-ray nano-computed tomography(CT)images display strong swelling of modified fibers after electrolyte absorption,which can effectively decrease the pore size of separator.Due to the high electrolyte uptake(817 wt%),paper-based separator exhibits ionic conductivity of 2.93 mS cm^(-1).^(7)Li solid-state NMR spectroscopy and Gaussian simulation reveal that the formation of local high Li^(+)ion concentration in the separator and its low absorption energy with Li^(+) ion(62.2 kcal mol^(-1))is conducive to the ionic transportation.In particular,the assembled Li/separator/LiFePO_(4) cell displays wide electrochemical stability window(5.2 V)and excellent cycle performance(capacity retention of 96.6%after 100 cycles at 0.5C)due to the reduced side reactions as well as enhanced electrolyte absorption and retention capacity by propionylation.Our proposed strategy will provide a novel perspective to design high-performance biobased separators to boost the development of clean and sustainable energy economy.

关键词： Paper-based separators Lithium-ion batteries Electrochemical properties Propionylation

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Impact factors of the degradation of bisphenol A by nitrocellulose membrane under illumination

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Journal of Environmental Sciences 2021年第2期33卷 193-202页

作者： Li Wu xinmiao Jin Tongqian Zhao Haipo wang Zhifeng Dai Institute of Resources and Environment Henan Polytechnic UniversityJiaozuo 454000China Collaborative Innouation Center for Coal-Bed Methane and Shale Gas of Henan Jiaozuo 454000China

Nitrocellulose membrane(NCM)can produce hydroxyl radicals under illumination,which promotes the oxidative degradation of organic pollutants.In this paper,NCM was used to oxidize bisphenol A(BPA)under simulated sunlight.The effects of p H,temperature,light intensity,anion and cation on the degradation of BPA were analyzed.The photodegradation process of BPA was discussed.The optimal photolysis rate was 0.031 min^(-)1 when the temperature was 30°C,the light intensity was 2.67×10^4 Lux,and the p H value was 9.0.The alkaline environment,temperature and light intensity can promote the photodegradation of BPA.Except for nitrate ions,anions and cations can inhibit the photodegradation of BPA.Compared with cations,anions have a greater inhibitory effect on BPA degradation.The degradation products of BPA by NCM were analyzed by gas chromatographic/mass.This study may provide useful information for the BPA degradation by NCM in complex water samples.

关键词： Nitrocellulose membrane Bisphenol A Degradation Illumination Impact factors

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Models for economic evaluation of multi-purpose apple harvest platform and software development

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International Journal of Agricultural and Biological Engineering 2019年第1期12卷 74-83页

作者： Zhao Zhang Zhaohua Zhang Xinmiao wang Hu Liu Yuanjie wang Weijie wang Department of Agricultural and Biological Engineering Pennsylvania State UniversityState CollegePA 16803USA College of Economics and Management Shandong Agricultural UniversityTai’an 271018ShandongChina School of Food Science&Biotechnology Zhejiang Gongshang UniversityHangzhou 310018China Northwest Institute of Eco-Environment and Resources Chinese Academy of SciencesLanzhou 730000China Agricultural Information Institute Chinese Academy of Agricultural SciencesBeijing 100081China State Grade Dezhou Power Supply Company Dezhou 253000ShandongChina

An increasing number of U.S.apple growers are now interested in using harvest platforms to increase harvest productivity,expand labor pool,and alleviate tough working conditions.To maximize benefits,functions of thinning,pruning&training,and infield sorting have been or are to be incorporated into harvest platforms.Though growers are most concerned with economic benefits,few cost-benefit studies had been conducted on different platforms.In the meantime,economic analysis procedure is complex and each analysis is for one specific machine(not for general purposes).No software has been developed as a general and ready-to-use tool for growers and researchers for the platform economic analysis.In this study,platforms,both available on the marketplace and developed in lab as pilot trials,were reviewed.Costs and benefits models were then established,based on which multi-purpose apple harvest platform economic evaluation software(iMPAHP)was developed(capable of evaluating a wide variety of apple harvest platforms).A case study(machine cost of$100000,accommodating 6 workers,processing apple incidence of 10%with 90%sort-out rate,and harvest,thinning,and pruning&training productivity increase by 40%,50%,and 60%,respectively)based on iMPAHP demonstrated that infield sorting,harvest,thinning,and pruning and training accounted for 48.4%,23.9%,14.3%,and 13.4%of the total benefits,respectively.In the case that the platform was in all-four-purpose-application,the net present value(NPV)analysis of a 10-year investment showed a positive return of$60547.However,without infield sorting function,the NPV resulted in a negative value,indicating a loss for the machine investment.Though incorporating the modular infield sorting system certainly increased the overall machine investment by$30000,the benefits outweighed the costs.

关键词： multi-purpose apple harvest platform economic evaluation infield sorting pruning thinning training

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食品物性学研究的挑战与展望

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食品与生物技术学报 2023年第3期42卷 1-11页

作者：王鑫淼陈建设浙江工商大学食品与生物工程学院浙江杭州310018 浙江工商大学浙江-英国食品感官科学联合实验室浙江杭州310018

食品物性学是关于食品物理性质的研究。几十年来,食品物性学随着食品科学和食品工艺研究的推进,以及评测仪器与设备的研发,取得了长足的进步,同时研究思路上也发生了一些转变。食品物性学研究从早期基于食品工艺的食品物性研究,正在逐... 详细信息

食品物性学是关于食品物理性质的研究。几十年来,食品物性学随着食品科学和食品工艺研究的推进,以及评测仪器与设备的研发,取得了长足的进步,同时研究思路上也发生了一些转变。食品物性学研究从早期基于食品工艺的食品物性研究,正在逐渐过渡到食物与人体相互作用、基于消费者感官体验的新领域。作者主要介绍了食品物性学研究的沿革、近年来取得的主要进展,同时就食品物性学研究的未来发展提出了一些建议。

关键词：食品物理性质质构研究感官体验食品口腔加工

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Interval Type-2 Fuzzy Passive Filtering for Nonlinear Singularly Perturbed PDT-Switched Systems and Its Application

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Journal of Systems Science & Complexity 2021年第6期34卷 2195-2218页

作者： LIU xinmiao XIA Jianwei wang Jing SHEN Hao AnHui Province Key Laboratory of Special Heavy Load Robot and School of Electrical and Information Engineering Anhui University of TechnologyMa'anshan 243032China School of Mathematical Sciences Liaocheng UniversityLiaocheng 252059China School of Electrical and Information Engineering Anhui University of TechnologyMa'anshan 243002China

The problem of designing a passive filter for nonlinear switched singularly perturbed systems with parameter uncertainties is explored in this paper.Firstly,the multiple-time-scale phenomenon is settled effectively by introducing a singular perturbation parameter in the plant.Secondly,the interval type-2 fuzzy set theory is employed where parameter uncertainties are expressed in membership functions rather than the system matrices.It is worth noting that interval type-2 fuzzy sets of the devised filter are different from the plant,which makes the design of the filter more flexible.Thirdly,the persistent dwell-time switching rule,as a kind of time-dependent switching rules,is used to manage the switchings among nonlinear singularly perturbed subsystems,and this rule is more general than dwell-time and average dwell-time switching rules.Next,sufficient conditions are provided for guaranteeing that the filtering error system is globally uniformly exponentially stable with a passive performance.Furthermore,on the basis of the linear matrix inequalities,the explicit expression of the designed filter can be obtained.Finally,a tunnel diode electronic circuit is rendered as an example to confirm the correctness and the validity of the developed filter.

关键词： Interval type-2 fuzzy model passive filter persistent dwell-time switching rule singularly perturbed nonlinear systems

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Biting force and tongue muscle strength as useful indicators for eating and swallowing capability assessment among elderly patients

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Food Science and Human Wellness 2019年第2期8卷 149-155页

作者： Xinmiao wang Gangying Zheng Mingsong Su Yanqiu Chen Hua Xie Weijia Han Qing Yang Jianqin Sun Jianshe Chen School of Food Science and Biotechnology Zhejiang Gongshang UniversityHangzhouZhejiang310018China Clinical Nutrition Center Huadong HospitalFudan UniversityShanghaiChina

Weakened capability of eating and swallowing is common among elderly population,affecting negatively on their health and well-being.This work measured occlusal force and tongue muscle strength of elderly patients and then assessed whether correlations existed between oral physiological properties and the eating and swallowing capability.A total of 26 elderly patients with potential swallow disorder were recruited in this work.Participants’denture status and daily diet texture were determined by a pre-questionnaire analysis.Their swallowing capability was assessed and rated by water drinking test.Maximum tongue pressure,incisor occlusal force and hand gripping force were measured for each subject.It was observed that participating subjects have on average a significantly lower biting force and maximum tongue pressure than that of normal adults.The swallowing grades assessed by water drinking test showed significant correlations with both the biting force(r=−0.498,P<0.05)and the tongue muscle strength(r=−0.544,P<0.05).The biting force of dysphagia participants correlates significantly with dental conditions(P<0.05).The observed correlation between tongue pressure and diet texture indicates that tongue muscle strength could be used as a reliable indicator of the eating and swallowing capability for elderly people.

关键词： Dysphagia Elderly Biting force Tongue pressure Eating capability Swallowing Food texture Food oral processing

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The Stevens law and the derivation of sensory perception

Journal of Future Foods

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Journal of Future Foods 2021年第1期1卷 82-87页

作者： Jianshe Chen Shiyi Tian Xinmiao wang Yuezhong Mao Lei Zhao Institute of Food Oral Procrsing and Sousory Sciences School of Food Science and BiotechnologyZhejiang Gongshang UniversityHongzhouZhejiang 310018China Food and Agriculture Standardization Institute China National Institute of StandardizationBeijing China

The Stevens law,S=kI^(n),is commonly accepted as a landmark achievement in the field of sensory psychophysics and has been widely applied in food sensory research.The theory effectively links the two parameters of very different nature,the intensity of sensory perception(S)and the intensity of physical stimulus(I).However,the Stevens law suffers from two major drawbacks.The equation was self-inconsistent in terms of the units,which makes equation questionable in principle.The Stevens law was also found inapplicable when multiple physical stimuli are involved in the perception of a sensory attribute.To solve the first drawback,we propose to replace the absolute stimulation intensity in the Stevens law with a relative intensity,S=k(I/I_(0))^(n).The modified Stevens law becomes self-consistent when both sides of the equation are dimensionless and the theory is applicable regardless of the unit of the physical stimulus.To solve the second drawback,a concept of sensory derivation is introduced and so sensory properties can be categorized as primary sensory and derived sensory.The former can be described effectively by the Stevens law,while description of the latter is beyond the applicability of the Stevens law because of the involvement of multiple sensory stimuli or multi level sensory derivation.Furthermore,a sensory hierarch is constructed with sensory perception of different nature at different levels,including the primary sensory at the basic level and derived sensory perception at progressing levels.The modified Stevens law provides a self-consistent model for psychophysical analysis of sensory perception.The proposed sensory hierarchy helps to streamline sensory terms and attributes and may be used as a useful guide in establishing instrumental analysis of sensory perception.

关键词： Stevens law Sensory derivation Sensory hierarch Sensory perception

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政区沿革视角下的唐代陕州政治地理研究

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三门峡职业技术学院学报 2023年第1期22卷 14-18页

作者：王鑫淼河南大学历史文化学院河南开封475000

陕州地处长安与洛阳之间,扼守崤山、函谷关,为黄河漕运要冲,具有特殊的经济地位。黄河漕运是影响陕州政区沿革和政治地理格局变迁的关键因素,漕运兴则关中兴,唐廷稳固长安洛阳两京、保障粮食供应才成为可能;漕运废则关中衰,唐廷对河南... 详细信息

陕州地处长安与洛阳之间,扼守崤山、函谷关,为黄河漕运要冲,具有特殊的经济地位。黄河漕运是影响陕州政区沿革和政治地理格局变迁的关键因素,漕运兴则关中兴,唐廷稳固长安洛阳两京、保障粮食供应才成为可能;漕运废则关中衰,唐廷对河南乃至全国的控制力都会减弱,政治、军事状况皆受陕州地区的黄河漕运所影响,陕州行政区划屡变也是当时政治地理格局变动的外显。陕州围绕黄河漕运所产生的一系列政治地理地位变化,体现出唐前期“关中本位”的丧失、唐中期政治格局走向保守内倾与中央集权衰落、唐后期彻底走向政治分裂的政治地理格局。

关键词：唐代陕州沿革政治地理

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