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Linkage between water soluble organic matter and bacterial community in sediment from a shallow, eutrophic lake, Lake Chaohu, China

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Journal of Environmental Sciences 2020年第12期32卷 39-46页

作者： Changming Yang jiliang Sun Yingying Chen jing Wu Yulai Wang Key Laboratory of Yangtze River Water Environment of the Ministry of Education Tongji UniversityShanghai 200092China Shanghai BaoSen Environmental Technology Co. Ltd.Shanghai 200439China School of Energy and Environment Anhui University of TechnologyMaanshan City 243002China

Lacustrine sediment played important roles in migration and transformation of its water soluble organic matter(WSOM), and the source and composition of WSOM would affect water trophic status and the fate of pollutants. However, we know little about the pathway of WSOM transformation and its driving bacterial communities in lacustrine sediment. In the present study, we investigated the spatial distribution patterns of sediment WSOM and its fluorescent fractions across Lake Chaohu using fluorescence spectroscopy, and explored WSOM compositional structure through our proposed calculated ratios. In addition, we also analyzed sediment bacterial community using Illumina sequencing technology, and probed the possible pathway of sediment WSOM transformation under the mediate of indigenous bacteria. Our results showed that the inflowing rivers affected the spatial distribution patterns of WSOM and its five fractions(including tyrosine-, tryptophan-, fulvic acid-, humic acid-like substances and soluble microbial productions), and sediment WSOM originated from fresh algae detritus or bacterial sources. In parallel, we also found that Proteobacteria(mainly γ-Proteobacteria and δ-Proteobacteria), Firmicutes(mainly Bacilli), Chloroflexi, Acidobacteria, Planctomycetes and Actinobacteria dominate sediment bacterial community. Furthermore, these dominant bacteria triggered sediment WSOM transformation, specifically, the humic acid-like substances could be converted into fulvic acid-like substances, and further degraded into aromatic protein-like and SMP substances. In addition, our proposed ratios(P-L:H-L, Ar-P:SMP and H-L ratio), as supplementary tool, were effective to reveal WSOM composition structure. These results figured out possible pathway of WSOM transformation, and revealed its microbial mechanism in lacustrine sediment.

关键词： Eutrophic lake DOM transformation Bacterial community EEMs-FRI Illumina sequencing

An indoor calibration light source of the transmissometers based on spatial light modulation

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Optoelectronics Letters 2022年第2期18卷 65-71页

作者： LIANG jing ZHANG Guoyu ZHANG Jian XU Da CHONG Wei SUN jiliang School of Opto-Electronic Engineering Changchun University of Science and TechnologyChangchun 130022China1 Opto-Electronic Measurement and Control Instrumentation Jilin Province Engineering Research CenterChangchun 130022China Key Laboratory of Opto-Electronic Measurement and Optical Information Transmission Technology Ministry of EducationChangchun 130022China Meteorological Observation Center China Meteorological AdministrationBeijing 100081China

Aiming at the problem that the calibration results of the transmissometers cannot be traced to the meteorological optical range(MOR) defined by the World Meteorological Organization(WMO). We designed an indoor calibration light source of the transmissometers based on spatial light modulation, focusing on the design of a non-intersecting CzernyTurner spectroscopic system which achieved a spectral resolution of less than 1 nm in the range from 380 nm to 780 nm. Then, the calibration light source’s spectrum matching model is established and the digital micromirror device(DMD)’s surface illuminance distribution law is simulated and analyzed. Finally, the MOR error of the calibrated light source is inverted. The results show that the simulation spectrum error of the 2 700 K absolute color temperature is below ±7.4% in the wavelength range from 380 nm to 780 nm, and the MOR error meets the requirements of the International Civil Aviation Organization in 40-2 000 m of MOR.

关键词： source light error

A static-dynamic energy harvester for a self-powered ocean environment monitoring application

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Science China(Technological Sciences) 2022年第4期65卷 893-902页

作者： XUE Feng CHEN Liang LI ChunCheng REN jing YU JunBin HOU XiaoJuan GENG WenPing MU jiliang HE Jian CHOU XiuJian Science and Technology on Electronic Test and Measurement Laboratory North University of ChinaTaiyuan 030051China

Ocean intelligent buoy is important for ocean environment *** the increase of requisite sensors and transportable data,a long power supply has become a problem to be solved *** this work,a hybrid nanogenerator integrating triboelectric,piezoelectric,electromagnetic,photovoltaic,and thermotropic units is proposed to maximize ocean ambient energy harvesting,which includes static energy(solar and thermal energy)and dynamic energy(wave energy).Compared with a device with a single energy conversion mechanism,this structural design breaks the limit of harvesting time and natural conditions during the energy harvesting process,thereby increasing the harvested *** energy harvesting is realized by the thermoelectric(TG)and photovoltaic(PV)units located inside the device and the PV unit attached to the device *** show that the maximum open-circuit voltage and short-circuit current are 5 V and 41 mA in the external PV and 1.33 V and 49 mA in the internal PV under 30000 Lux illumination,*** open-circuit voltage and short-circuit current of the TG unit are 5 V and 15 m A,*** core component of the dynamic generation unit is the gimbal used to harvest wave energy by the triboelectric nanogenerator(TENG),piezoelectric generator(PENG),and electromagnetic *** the frequency is 2.4 Hz,the maximum peak-to-peak power of the TENG,PENG,and EMG are 0.25,1.58,and 13.8 mW,***,an intelligent ocean buoy is fabricated by the integration of an energy harvester,a power management circuit,sensors,a microcontroller,and a wireless communication *** by static and dynamic energy,temperature signal,humidity signal,GPS signal,and sound signal are sent to the receiving terminal *** ocean energy harvester proposed in this work is of great significance for ocean energy harvesting and ocean wireless monitoring systems.

关键词： hybrid nanogenerator static energy dynamic energy energy harvester wireless monitoring system

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Evaluation and Exploration of Se-enriching Effects of Microbial Nano-selenium on Several Kinds of Vegetable

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Agricultural Biotechnology 2018年第5期7卷 26-28页

作者： Qiang LI jing ZHANG Ruiyi YANG Zujiang GAO jiliang SHAN Puxing LIANG Foshan Municipal Institute of Agricultural Sciences/Agricultural Technology Extension Center of Foshan City Foshan 528145China

[Objectives] This study was carried out to explore the selenium-enriching effect of different crops, and provide certain references for production of selenium-enriched agricultural products. [Methods] Four kinds of crops （tomato, leaf mustard, peanut, and carrot） were exogenous selenium fertilizer treated, to explore the selenium-enriching effects on these crops. [Results] Exogenous application of microbial nano-selenium can significantly increase the selenium content of the crops, of which the effects on big tomato （Weiyanuo） were the best. After spraying, the selenium content increased by 1.39 times, and at the same time the sugar content of tomato was also increased. [Conclusions] This study is expected to provide references for increase of the selenium content of agricultural products.

关键词： Microbial nano-selenium Tomato Leaf mustard Peanut Carrot Selenium-enriching effects

百脉根LjCYC1基因致非洲紫罗兰花形改变

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园艺学报 2020年第4期47卷 708-716页

作者：杨梦婷徐京庞基良杭州师范大学生命与环境科学学院杭州310036

利用农杆菌介导法将百脉根花对称性基因LjCYC1转入非洲紫罗兰,进一步探讨其作用和功能。非洲紫罗兰LjCYC1转化植株的表型发生以下变化:(1)花的对称性明显改变,由辐射对称变为两侧对称,出现频率为14.3%;(2)花瓣向花冠基部裂开,且花瓣数减... 详细信息

利用农杆菌介导法将百脉根花对称性基因LjCYC1转入非洲紫罗兰,进一步探讨其作用和功能。非洲紫罗兰LjCYC1转化植株的表型发生以下变化:(1)花的对称性明显改变,由辐射对称变为两侧对称,出现频率为14.3%;(2)花瓣向花冠基部裂开,且花瓣数减少,出现频率为57.1%;(3)部分或全部雄蕊花瓣化,出现频率为17.1%;(4)雌蕊花瓣化或退化,出现频率为11.4%。

关键词：百脉根非洲紫罗兰 LjCYC1 花对称性

Initial study of biexponential model of intravoxel incoherent motion magnetic resonance imaging in evaluation of the liver fibrosis

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Chinese Medical Journal 2014年第17期127卷 3082-3087页

作者： Chen Cuiyun Wang Bin Shi Dapeng Fu Fangfang Zhang jiliang Wen Zejun Zhu Shaocheng Xu Junling Lin Qing Li jing Dou Shewei Shandong Medical Imaging Research Institute Shandong University Jinan Shandong 250100 China Department of Radiology People's Hospital of Zhengzhou University Zhengzhou Henan 450003 China Medical Imaging Research Institute Binzhou Medical University Yantai Shandong 264003 China

Background The diagnosis of liver fibrosis is a difficult task at any time using conventional clinical *** incoherent motion （IVIM） can be used to investigate both diffusion and perfusion changes in *** study was designed to determine the value of IVIM in the diagnosis and staging of liver *** IVIM examinations were performed on a GE 3.0T MR scanner in 25 patients with liver fibrosis and 25 healthy volunteers as the control *** with liver fibrosis diagnosis were confirmed by pathology and staged on a scale of *** standard ADC values and the values of a biexponential model （slow ADC （Dslow）,fast ADC （Dfast） and fraction of fast ADC （FF）） were measured in three liver regions per *** mean standard ADC values,Dslow values,Dfast values and FF values from the study group were compared among the right posterior hepatic lobe,right anterior hepatic lobe and medial segment of the left *** Operating Characteristic （ROC） curves and independent-samples t-tests were used to calculate the mean standard ADC values,Dslow values,Dfast values and FF values from the study group and the control *** rho correlation analysis was used for the stage of liver *** liver fibrosis stages between the groups F0-1 and F2-4,the groups F0-2 and F3-4 were *** Among the liver fibrosis,there was no significant difference in the mean standard ADC values,Dslow values,Dfast values,and FF values obtained from the right posterior hepatic lobe,right anterior hepatic lobe and medial segment of the left *** ROC analysis,the Area Under the Curve （AUC） values of standard ADC,Dslow,Dfast,FF were all between 0.7 to *** mean standard ADC values,Dslow values,Dfast values and FF values of the liver in the study group were significantly lower than the values in the control group （P ＜0.05）.As the stage of the fibrosis increased,the values decreased by Spearman rho correlation *** mean values （stand

关键词： liver fibrosis magnetic resonance imaging intravoxel incoherent motion biexponential model

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教育场域中青少年敬畏生命的缺失及重塑

中国教育学刊 2019年第6期 94-100页

作者：党晶刘济良河南大学教育科学学院

敬畏生命作为伦理学的一种新思想,其中蕴含的价值理念、生命信仰、生存方式等对教育具有重要意义。随着社会分工的细化,敬畏生命在教育场域中不断地被工具理性、消费主义和个人主义所消解,表现为工具崇拜使生命的神圣性被削弱,消费异化... 详细信息

敬畏生命作为伦理学的一种新思想,其中蕴含的价值理念、生命信仰、生存方式等对教育具有重要意义。随着社会分工的细化,敬畏生命在教育场域中不断地被工具理性、消费主义和个人主义所消解,表现为工具崇拜使生命的神圣性被削弱,消费异化导致生命价值被漠视,膨胀的私欲致使轻视生命的现象频发。教育场域中敬畏生命的回归应遵循生命的发展规律、明确生命发展方向、营造利于生命成长的环境,具体措施包括:顺应生命,倾听生命律动;珍爱生命,保持生命的善;尊重生命,构建和谐的生存环境。

关键词：敬畏生命轻视生命青少年教育场域

Y_2W_3O_(12)/Ni复合材料的制备及热膨胀性能

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复合材料学报 2016年第2期33卷 327-333页

作者：林小辉李来平梁静郑欣喻吉良西北有色金属研究院西安710016

为研究Ni基Y2W3O12复合材料的热学性能,首先,采用二次焙烧法制备了负膨胀材料Y2W3O12;然后,将Y2W3O12与金属Ni进行混合,并在1 200℃、50 MPa的条件下热压烧结制得40vol%Y2W3O12/Ni复合材料;最后,对复合材料的成分及热膨胀性能进行了研... 详细信息

为研究Ni基Y2W3O12复合材料的热学性能,首先,采用二次焙烧法制备了负膨胀材料Y2W3O12;然后,将Y2W3O12与金属Ni进行混合,并在1 200℃、50 MPa的条件下热压烧结制得40vol%Y2W3O12/Ni复合材料;最后,对复合材料的成分及热膨胀性能进行了研究。结果表明：在热压烧结过程中,由于Ni的还原性比W差,相对于对比试样40vol%Y2W3O12/Cr复合材料中发生的复杂化学反应,40vol%Y2W3O12/Ni复合材料的两相之间并未发生反应,使40vol%Y2W3O12/Ni复合材料保持了较低的热膨胀系数;经数次循环退火释放热应力及去除Y2W3O12相的结晶水后,40vol%Y2W3O12/Ni复合材料在170-800℃温度范围内的热膨胀系数趋于稳定,约为3.4×10^-6 K^-1,与理论设计值4.0×10^-6 K^-1相近。

关键词：复合材料 Y2W3O12 负膨胀微观组织热膨胀系数

煎炸时间与煎炸温度对花生油脂肪酸组成的影响

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中国油脂 2013年第7期38卷 76-81页

作者：夏季亮陈玎玎吴晶安徽农业大学茶与食品科技学院合肥230036

研究了煎炸时间和煎炸温度对花生油脂肪酸组成的影响。结果表明:煎炸温度的升高与煎炸时间的延长都能导致花生油中的中碳链脂肪酸、奇数碳链脂肪酸和反式脂肪酸含量增加,同时导致多不饱和脂肪酸含量下降。在煎炸温度为150、180、210℃下... 详细信息

研究了煎炸时间和煎炸温度对花生油脂肪酸组成的影响。结果表明:煎炸温度的升高与煎炸时间的延长都能导致花生油中的中碳链脂肪酸、奇数碳链脂肪酸和反式脂肪酸含量增加,同时导致多不饱和脂肪酸含量下降。在煎炸温度为150、180、210℃下,煎炸32 h后,花生油中饱和脂肪酸含量分别由未煎炸花生油中的15.41%增加至25.69%、28.71%、35.86%,单不饱和脂肪酸含量分别由未煎炸花生油中的44.75%增加至51.60%、52.82%、50.65%,多不饱和脂肪酸含量分别从未煎炸花生油中的39.81%下降至18.90%、14.10%、9.81%,相对不饱和度分别从未煎炸花生油中的5.49下降至2.74、2.33、1.69。

关键词：煎炸花生油中碳链脂肪酸奇数碳链脂肪酸反式脂肪酸相对不饱和度