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Efficient treatment of azo dye containing wastewater in a hybrid acidogenic bioreactor stimulated by biocatalyzed electrolysis

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Journal of Environmental Sciences 2016年第1期28卷 198-207页

作者： Hong-Cheng Wang Hao-Yi Cheng Shu-Sen Wang Dan Cui Jing-Long Han Ya-Ping Hu shi-Gang su Ai-Jie Wang Key Laboratory of Environmental Biotechnology Research Center for Eco-Environmental Sciences Chinese Academy of Sciences State Key Laboratory of Urban Water Resource and Environment Harbin Institute of Technology

In this study, a novel scaled-up hybrid acidogenic bioreactor（HAB） was designed and adopted to evaluate the performance of azo dye（acid red G, ARG） containing wastewater treatment. Principally, HAB is an acidogenic bioreactor coupled with a biocatalyzed electrolysis module. The effects of hydraulic retention time（HRT） and ARG loading rate on the performance of HAB were investigated. In addition, the influent was switched from synthetic wastewater to domestic wastewater to examine the key parameters for the application of HAB. The results showed that the introduction of the biocatalyzed electrolysis module could enhance anoxic decolorization and COD（chemical oxygen demand） removal. The combined process of HAB-CASS presented superior performance compared to a control system without biocatalyzed electrolysis（AB-CASS）. When the influent was switched to domestic wastewater, with an environment having more balanced nutrients and diverse organic matters, the ARG, COD and nitrogen removal efficiencies of HAB-CASS were further improved, reaching 73.3% ± 2.5%, 86.2% ± 3.8% and 93.5% ± 1.6% at HRT of 6 hr, respectively, which were much higher than those of AB-CASS（61.1% ± 4.7%,75.4% ± 5.0% and 82.1% ± 2.1%, respectively）. Moreover, larger TCV/TV（total cathode volume/total volume） for HAB led to higher current and ARG removal. The ARG removal efficiency and current at TCV/TV of 0.15 were 39.2% ± 3.7% and 28.30 ± 1.48 mA,respectively. They were significantly increased to 62.1% ± 2.0% and 34.55 ± 0.83 mA at TCV/TV of 0.25. These results show that HAB system could be used to effectively treat real wastewater.

关键词： HAB(hybrid acidogenic bioreactor) Scale-up Azo dye Domestic wastewater Cyclic activated sludge system(CASS)

Changes in grain-filling characteristics of single-cross maize hybrids released in China from 1964 to 2014

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Journal of Integrative Agriculture 2023年第3期22卷 691-700页

作者： GAO Xing LI Yong-xiang YANG Ming-tao LI Chun-hui SONG Yan-chun WANG Tian-yu LI Yu shi Yun-su Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081P.R.China

Grain filling is the physiological process for determining the obtainment of yield in cereal *** grain-filling characteristics of 50 maize brand hybrids released from 1964 to 2014 in China were assayed across multiple *** found that the grain-filling duration(54.46%)and rate(43.40%)at the effective grain-filling phase greatly contributed to the final performance parameter of 100-kernel weight(HKW).Meanwhile,along with the significant increase in HKW,the accumulated growing degree days(GDDs)for the actual grain-filling period duration(AFPD)among the selected brand hybrids released from the 1960s to the 2010s in China had a decadal increase of 23.41℃ ***,there was a decadal increase of only 19.76℃ d for GDDs of the days from sowing to physiological maturity(DPM),which was also demonstrated by a continuous decrease in the ratio between the days from sowing to silking(DS)and DPM(i.e.,from 53.24%in the 1960s to 49.78%in the 2010s).In contrast,there were no significant changes in grain-filling rate along with the release years of the selected ***,the stability of grain-filling characteristics across environments also significantly increased along with the hybrid release *** also found that the exotic hybrids showed a longer grain-filling duration at the effective grain-filling phase and more stability of the grain-filling characteristics than those of the Chinese local *** to the results of this study,it is expected that the relatively longer grain-filling duration,shorter DS,higher grain-filling rate,and steady grain-filling characteristics would contribute to the yield improvement of maize hybrids in the future.

关键词： maize(Zea mays L.) grain-filling rate grain-filling duration stability

Intelligent identifi cation method for near-surface ground fi ssures based on seismic data

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Applied Geophysics 2020年第5期17卷 639-648,899页

作者： shi su-Zhen Gu Jian-Ying Feng Jian Duan Pei-fei Qi You-chao Han Qi State Key Laboratory for Coal Resources and Safety Mining China University of Mining and Technology(Beijing)Beijing 100083China College of Geoscience and surveying Engineering China University of Mining Technology(Beijing)Beijing 100083China Zhongshui North survey Design and Research Co.Ltd.

Taking a study area in Jinzhong Basin in Qixian County,Shanxi Province,as an example,this work performs an intelligent interpretation of ground *** the basis of a complete analysis of the regional geological background in the study area,dip-steering cube operation and median filtering of seismic data were performed using fast Fourier transform to improve the continuity of seismic events and eliminate random noise.A total of 200 stratigraphic continuous sample training points and 500 discontinuous training points were obtained from the processed seismic ***,a variety of attributes(coherence,curvature,amplitude,frequency,etc.)were extracted as the input for the multilayer perceptron neural network *** the training period,the training results were traced by normalized root mean square error(RMSE)and misclassifi *** training results showed a downward trend during the training *** misclassifi cation curve was stable at 0.3,and the normalized RMSE curve was stable at *** the value of the normalized RMSE curve reached the minimum,the training was terminated,and the training results were extended to the whole data volume to obtain the attribute cube of intelligent ground fi ssure *** characteristics of ground fi ssures were analyzed and identifi ed from the sections and slices.A total of 11 ground fissures were finally *** interpretation results showed that the dip angles were 60°-85°,the fault throws were 0-43 m,and the extension lengths were 300-1,100 m in the whole *** strike of 73%of the ground fi ssures was consistent with the direction of the regional tectonic *** cally,four ground fi ssures coincided with the surface disclosed,and the verifi cation rate reached 100%.In conclusion,the intelligent ground fi ssure detection attribute based on the dip-steering cube is eff ective in predicting the spatial distribution of ground fi ssures.

关键词： neural network ground fi ssures development area dip-steering cube intelligent ground fi ssure detection attribute

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通督醒神针刺法治疗急性脑梗死的疗效观察

中国中医急症 2024年第10期33卷 1763-1766页

作者：林骏荣丁德权黄静苏适刘佳昕朱彦龙佛山复星禅诚医院广东佛山528000

目的观察通督醒神针刺法治疗急性脑梗死的临床疗效。方法纳入2021年1月至2023年6月佛山复星禅诚医院康复医学科收治的急性脑梗死患者102例,随机分为对照组和针刺组,对照组给予西医常规治疗,针刺组加用通督醒神针刺法治疗,疗程为2周。... 详细信息

目的观察通督醒神针刺法治疗急性脑梗死的临床疗效。方法纳入2021年1月至2023年6月佛山复星禅诚医院康复医学科收治的急性脑梗死患者102例,随机分为对照组和针刺组,对照组给予西医常规治疗,针刺组加用通督醒神针刺法治疗,疗程为2周。比较两组美国国立卫生院神经功能缺损评分量表(NIHSS)评分、Fugl-Meyer评分、Bartherl指数(BI)、脑卒中患者专用生存质量量表(SS-QOL)、脑血流动力学[基底动脉舒张末期血流速度(Vd)、收缩峰值血流速度(Vs)、平均血流速度(Vm)]和血清炎症因子[肿瘤坏死因子-α(TNF-α)、白细胞介素-1(IL-1)、超敏C反应蛋白(hs-CRP)]的变化,统计两组总有效率。结果两组治疗后NIHSS评分均降低(P <0.05),且针刺组低于对照组(P <0.05);两组治疗后FMA平衡功能、FMA运动功能、BI评分、SS-QOL评分和大脑动脉Vd、Vs、Vm均升高(P <0.05),且针刺组高于对照组(P <0.05);两组治疗后血清TNF-α、IL-1、hs-CRP含量均降低(P <0.05),且针刺组低于对照组(P <0.05);针刺组总有效率为94.12%,高于对照组的80.39%(P <0.05)。结论通督醒神针刺法治疗急性脑梗死可以改善神经缺损功能,提高大脑血流速度,改善生活质量,减轻炎症反应。

关键词：急性脑梗死通督醒神针刺疗效

Variation of soil-plant-atmosphere continuum stable isotope and water source in Qinghai spruce forest of the eastern Qilian Mountains

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Journal of Mountain Science 2023年第2期20卷 355-366页

作者： ZHOU Jun-ju WANG Xue MA Luo LUO Chu-yu TANG Hai-tao GUO Zhao-nan CHEN Jia-wei shi su-han shi Wei WEI Wei ZHANG Dong-xia LIU Chun-fang College of Geography and Environmental Science Northwest Normal UniversityLanzhou 730070China Key Laboratory of Resource Environment and sustainable Development of Oasis Lanzhou 730070China Sate Key Laboratory of Earth surface Processes and Resource Ecology Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China

Understanding the hydrogen and oxygen stable isotope composition and characteristics of different water bodies in soil-plant-atmosphere continuum is of significance for revealing regional hydrological processes and water cycle *** this study,we analyzed the stable isotopic composition,relationship and indicative significance of precipitation,soil water(0~100 cm depth)and xylem water of Qinghai spruce(Picea crassifolia)forest in the eastern Qilian Mountains,and explored the circulation process among different water *** results show that the stable isotopes of precipitation vary greatly during the entire observation *** values ofδ2H andδ^(18)O in the precipitation in the warm season are richer than those in the cold season,and the slope and intercept of local meteoric water line(LMWL,δ2H=6.79δ18O+7.13)are both smaller than global meteoric water line(GMWL,δ2H=8.17δ18O+10.56).The stable isotopes of soil water at different depths underwent different degrees of evaporative fractionation,and theδ18O andδ2H of shallow soil water varied greatly,while the deep soil water tended to be *** topsoil(0~10 cm)can respond quickly to precipitation,and the response of the deep soil has a time *** the whole growing season,0~30 cm and 60~100 cm soil water are the main water sources of Qinghai *** water source of Qinghai spruce was from all soil layers in May and September,mainly from the shallow soil layer(0~30 cm)in August and October,and mainly from the deep soil layer(60~100 cm)in June and July.

关键词： Stable hydrogen isotope Stable oxygen isotope Soil-plant-atmosphere continuum SPAC Plant water use IsoSource model

Rosai-Dorfman disease of lung： a case report and review of the literatures

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Chinese Medical Journal 2009年第7期122卷 873-874页

作者： shi su-sheng suN Yun-tian GUO Lei Department of Pathology Cancer Institute (Hospital) Chinese Academy of Medical Science & Peking Union Medical College Beijing 100021 China

Rosai-Dorfman disease （RDD）, also known as sinus histiocytosis with massive lymphadenopathy （SHML）, is a rare benign entity of unknown etiology. Extranodal SHML （ESHML） may occur as part of a generalized process involving lymph nodes or may involve extranodal sites independent of the lymph node status. Here we report a case with a Rosai-Dorfman disease of the lung and review the literature.

关键词： Rosai-Dorfman disease histiocytosis, sinus lung

Isolating Soil Drought-Induced Genes from Maize Seedling Leaves Through suppression subtractive Hybridization

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Agricultural Sciences in China 2007年第6期6卷 647-651页

作者： LI Hui-yong HUANG su-hua shi Yun-su SONG Yan-chun ZHAO Jiu-ran WANG Feng-ge WANG Tian-yu LI Yu Institute of Food Crops Henan Academy of Agricultural Sciences Zhengzhou 450002 P.R.China Institute of Crop Sciences Chinese Academy of Agricultural Sciences Beijing 100081 P.R.China Maize Research Institute Beijing Academy of Agricultural and Forestry Sciences Beijing 100081 P.R.China

In this study, a forward cDNA library was constructed by suppression subtractive hybridization using seedling leaves of CN165, a drought-tolerant maize inbred line. In the suppression subtractive hybridization （SSH） library, 672 positive clones were picked up randomly. After polymerase chain reaction （PCR） of each clone, all the single clones were sequenced. Totally 598 available sequences were obtained. After cluster analysis of the EST sequences, 80 uniESTs were obtained, among which 57 uniESTs were contigs and 23 uniESTs were singlets. The results of BLASTN showed that all the uniESTs had homologous sequences in the nr database. The BLASTX results indicated that 68 uniESTs had significant protein homology, 8 uniESTs with homology of unknown proteins and putative proteins, and 4 uniESTs without protein homology. Those drought stress-induced genes were involved in many metabolism pathways to regulate plant growth and development under drought stress.

关键词： maize drought stress suppression subtractive hybridization (SSH) uniESTs

Source apportionment and suitability evaluation of seasonal VOCs contaminants in the soil around a typical refining-chemical integration park in China

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Journal of Environmental Sciences 2024年第3期137卷 651-663页

作者： Xu Zhao Jing Meng Qianqian Li Guijin su Qifan Zhang Bin shi Lingwen Dai Yong Yu Key Laboratory of Environmental Nanotechnology and Health Effects State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China State Environmental Protection Key Laboratory of Quality Control in Environmental Monitoring China National Environmental Monitoring CenterBeijing 100012China

Accurate source apportionment of volatile organic compounds(VOCs)in soil nearby petrochemical industries prevailing globally,is critical for preventing ***,in the process,seasonal effect on contamination pathways and accumulation of soil VOCs is often ***,Yanshan Refining-Chemical Integration Park,including a carpet,refining,synthetic rubber,and two synthetic resin zones,was selected for *** variations resulted in a gradual decrease of 31 VOCs in soil from winter to summer.A method of dry deposition resistance model coupling partitioning coefficient model was created,revealing that dry deposition by gas phase was the primary pathway for VOCs to enter soil in winter and spring,with 100 times higher fux than by particle *** profiles for five zones were built by gas sampling with distinct substance indicators screened,which were used for positive matrix factorization factors *** of the five zones were 14.9%,20.8%,13.6%,22.1%,and 28.6%in winter and 33.4%,12.5%,10.7%,24.9%,and 18.5%in spring,*** variation in the soil sorption capacity of VOCs causes inter-seasonal differences in *** better correlation between dry deposition capacity and soil storage of VOCs made root mean square and mean absolute errors decrease averagely by 8.8%and 5.5%in winter compared to *** study provides new perspectives and methods for the source apportionment of soil VOCs contamination in industrial sites.

关键词： Dry deposition resistance model Positive matrix factorization model Partitioning coefficient model Contamination pathway Source profile

Young＇s Modulus Enhancement and Measurement in CNT/Al Nanocomposites

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Acta Metallurgica Sinica(English Letters) 2018年第11期31卷 1121-1129页

作者： Zi-Yun Yu Zhan-Qiu Tan Gen-Lian Fan Ren-Bang Lin Ding-Bang Xiong Qiang Guo Yi-shi su Zhi-Qiang Li Di Zhang State Key Laboratory of Metal Matrix Composites School of Material Science and Engineering Shanghai Jiao TongUniversity Shanghai 200240 China Shanghai Key Laboratory of Spacecraft Mechanism Shanghai 201108 China

Young＇s modulus is a critical parameter for designing lightweight structure, but Al and its alloys only demonstrate alimited value of 70-72 GPa. The introduction of carbon nanotubes （CNTs） is an effective way to make Al and its alloysstiffer. However, little research attention has been paid to Young＇s modulus of CNT/Al nanocomposites attributed to theuncertain measurement and unconvincing stiffening effect of CNTs. In this work, improved Young＇s modulus of 82.4 ± 0.4 GPa has been achieved in 1.5 wt% CNT/Al nanocomposite fabricated by flake powder metallurgy, which wasdetermined by resonance test and 13.5% higher than 72.6 ± 0.64 GPa of Al matrix. A comparative study and statisticalanalysis further revealed that Young＇s modulus determined by tensile test was relatively imprecise （83.1 ± 4.0 GPa） dueto the low-stress microplasficity or interface decohesion during tensile deformation of CNT/Al nanocomposite, while thevalue （98-100 GPa） was highly overestimated by nanoindentation due to the ＂pile-up＂ effect. This work shows an in-depthdiscussion on studying Young＇s modulus of CNT/Al nanocomposites.

关键词： CNT/Al nanocomposites Young's modulus Stiffening Resonance test