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Advanced nitrogen and phosphorus removal in A^(2)O-BAF system treating low carbon-to-nitrogen ratio domestic wastewater

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Frontiers of Environmental Science & Engineering 2011年第3期5卷 474-480页

作者： Jianhua WANG Yongzhen PENG yongzhi chen Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering College of Environmental and Energy EngineeringBeijing University of TechnologyBeijing 100124China

A laboratory-scale anaerobic-anoxic-aerobic process(A^(2)O)with a small aerobic zone and a bigger anoxic zone and biologic aerated filter(A^(2)O-BAF)system was operated to treat low carbon-to-nitrogen ratio domestic *** A^(2)O process was employed mainly for organic matter and phosphorus removal,and for *** BAF was only used for nitrification which coupled with a settling tank Compared with a conventional A^(2)O process,the suspended activated sludge in this A^(2)OBAF process contained small quantities of nitrifier,but nitrification overwhelmingly conducted in *** the system successfully avoided the contradiction in sludge retention time(SRT)between nitrifying bacteria and phosphorus accumulating organisms(PAOs).Denitrifying phosphorus accumulating organisms(DPAOs)played an important role in removing up to 91%of phosphorus along with nitrogen,which indicated that the suspended activated sludge process presented a good denitrifying phosphorus removal *** average removal efficiency of chemical oxygen demand(COD),total nitrogen(TN),total phosphorus(TP),and NH_(4)^(+)-N were 85.56%,92.07%,81.24%and 98.7%*** effluent quality consistently satisfied the national first level A effluent discharge standard of *** average sludge volume index(SVI)was 85.4 mL·g^(-1)additionally,the volume ratio of anaerobic,anoxic and aerobic zone in A^(2)O process was also investigated,and the results demonstrated that the optimum value was 1:6:2.

关键词： Anoxic zone and biologic aerated filter(A^(2)OBAF)system domestic wastewater with low carbon-tonitrogen ratio advanced nitrogen and phosphorus removal denitrifying phosphorus removal

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Infrastructure-Mediated Sensing Based Home Appliances Monitoring System Using the EMI Characteristics

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Chinese Journal of Electronics 2014年第3期23卷 586-590页

作者： ZHOU Qiuzhan chen yongzhi YOU Ziyue School of Communication Engineering Jilin University

An automatic monitoring system for home appliances using infrastructure-mediated sensing technology is presented. A practical solution for identifying the working states of electronic devices and determining the consumption of each device in a household is proposed. Initially, the components of Electromagnetic interference(EMI) noises in a residential power line are analyzed, and then the basic theory of Switched mode power supplies(SMPS) is discussed. Finally, a set of practical approaches has been proposed to detect and classify the electrical events, including a time-frequency transformation algorithm, power spectrum vector chasing, Gaussian function fitting and supervised pattern recognition, etc. The monitoring system has deployed into real houses and it successfully classifies SMPS devices with accuracy from 92.6% to99.2% for individual devices and 88.0% to 95.0% for multiple devices.

关键词： Home appliance monitoring Energy consumption monitoring Electromagnetic interference(EMI) Infrastructure-mediated sensing

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Quaternary Climate and Environment in the Lop Nur,Xinjiang

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Acta Geologica Sinica(English Edition) 2000年第2期74卷 273-278页

作者： WANG Mill PU Qingyu LIU chenglin chen yongzhi Geological Society of China 26 Baiwanzhuang Rd.Beijing 100037 Institute of Mineral Deposits Chinese Academy of Geological Sciences26 Baiwanzhuang Rd.Beijing 100037

Since the middle Early Pleistocene (1.20 Ma B.P.), the desert steppe climate and environment have predominated in the Lop Nur area, Xinjiang, characterized by warm humid epochs interrupted by dry cold intervals. The grain-size and magnetic susceptibility curves record 30 climatic oscillations, each with a ca. 40 ka cycle, in the area since 1.2 Ma B.P., which reflects the controlling effects exerted by the astronomic factor on the environment. The Quaternary sedimentary environment in the Lop Nur gradually changed from a fresh lake through a brackish lake to a saline lake, showing a spiral evolution, and finally it evolved into a playa.

关键词： Lop Nur Quaternary palaeoclimate sedimentary environment sporopollen

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UnionPay Payment Scheme Based on Controlled Quantum Teleportation

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Chinese Journal of Electronics 2020年第3期29卷 533-539页

作者： WEN Xiaojun chen yongzhi YI Zhengzhong JIANG L.Zoe FANG Junbin School of Computer Engineering Shenzhen Polytechnic Department of Electronics and Information Engineering Shijiazhuang University School of Computer Science and Technology Harbin Institute of Technology Department of Electronic Engineering Jinan University

We propose a UnionPay payment scheme based on controlled quantum teleportation in which the whole process is realized through correlation of the three-particle entangled state, controlled quantum teleportation, and the physical property of quantum mechanics. Combined with some typical quantum key distribution protocols, the proposed UnionPay payment scheme with unconditional security(information theory security)overcomes the limitation of computational security generally existing in traditional UnionPay payment systems.

关键词： UnionPay payment Controlled quantum teleportation Quantum key distribution Unconditional security

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Discovery,Genesis and Significance of Metallic Minerals in Evaporate Series in the Kuqa Basin

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Acta Geologica Sinica(English Edition) 2011年第6期85卷 1448-1465页

作者： CAO Yangtong LIU chenglin XUAN Zhiqiang JIAO Pengcheng chen yongzhi WANG Chunlian Institute of Mineral Resources Chinese Academy of Geological Sciences Beijing 100037 China Institute of Geology Bureau of Mining of China Chemical Industry Zhuozhou Hebei 07275 China

A large-scale evaporate series is developed in Paleogene-Neogene strata in the Kuqa basin. The series is composed mainly of evaporate with thin beds of clastic rock （mainly mudstone and siltstone）. In grayish white medium- and coarse-grained sandstone in Miocene strata, the formation of copper minerals is in close connection with brine. In joint planes, which are developed in vertical strata, are filled with gypsum. Gypsum and copper-mineralized sandstone contains enormous copper minerals, mainly atacamite. According to the SEM analysis for salt rock, gypsum rock, limestone, grayish green siltstone, grayish white medium-coarse-grained sandstone, some minerals are composed of metallic elements including Au, Ag, Cu, Zn, Pb, Co, Ni and U etc., in which Au occurs in a native form, Cu occurs in a native form or as atacamite in salt rock, gypsum rock and limestone, Ag occurs as silver sulfide in gypsum, and Zn, Pb, Co, Ni, U occur as compounds along with the above metallic ions in evaporate or clastic rock. From SEM images, we can see that metallic elements or their compounds （oxides or sulfides）＂take root＂ as grains in salt or gypsum crystals, which belong to primary chemical sedimentation along with evaporate, while some grains ＂float＂ on surface of salt or gypsum. In the former case, mineral grains were formed together with salt （gypsum） crystals; while in the latter case, minerals were enriched from internal metallic ions （Paleogene evaporate samples） or external metallic ions （Neogene gypsum samples） in the late stage of evaporate formation. The metallic ions in Paleogene evaporate samples might originate from weathered or denudated materials in the south Tianshan Mountains. The metallic ions in the Neogene evaporate samples might be from metal- bearing brine, which migrated upward to surface along fractures and leached into evaporate （gypsum）. Occurrence of metallic minerals and their compounds （elementary substance） in Paleogene evaporate proves that diversified m

关键词： metallic mineral evaporate series Kuqa basin

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Features and Formation Mechanism of Faults and Potash-forming Effect in the Lop Nur Salt Lake,Xinjiang,China

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Acta Geologica Sinica(English Edition) 2006年第6期80卷 936-943页

作者： LIU chenglin WANG Mili JIAO Pengcheng LI Shude chen yongzhi School of Environmental Sciences Peking University Beijing 100871 Institute of Mineral Resources Chinese Academy of Geological Sciences Beijing 100037

The Lop Nur Salt Lake, located in the eastern part of the Tarim Basin, Xinjiang, China, has become a playa in the Quaternary. Rhombic in shape, the Lop Nur depression is mainly controlled by the NE-striking and nearly N-S-striking sets of faults. Since 1995, a superlarge brine potash deposit with potash resources of 2.50×10^8s t has been found in the Luobei subbasin in the northeastern part of the Lop Nur. We intensively studied the features and formation mechanism of faults inside the Lop Nur through satellite images, geomorphologic survey and continuous conductivity imaging and found seven subparallel graben faults formed under the action of nearly N 10° E principal compressional stress during deposition of the Lop Nur Salt Lake. These faults are up to 〉60 km long and 1-4 km wide and may extend downward for 1000 m or more. It is just under the action of these tensional faults that potash subbasius formed. The largest subbasin is the Luobei subbasin and the smaller ones are the Luoxi hollow, Erbei hollow and Tienan hollow. Investigation also indicates that the graben faults in the Lop Nur not only control the origin of the potash subbasins, but they themselves are also good brine reservoir structures, in which abundant potash-rich brines are stored. Therefore, The faults had played an important role in the potash formation of the Lop Nur.

关键词： Xinjiang Lop Nur salt lake fault potash formation

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General and Modular Access to Enantioenriched α-Trifluoromethyl Ketones via Nickel-Catalyzed Reductive Trifluoroalkylation

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CCS Chemistry 2023年第6期5卷 1386-1397页

作者： Dengkai Lin yongzhi chen Zhan Dong Pan Pei Haiting Ji Lanzhu Tai Liang-An chen Jiangsu Collaborative Innovation Center of Biomedical Functional Materials Jiangsu Key Laboratory of New Power BatteriesSchool of Chemistry and Materials ScienceNanjing Normal UniversityNanjing 210023

The development of new catalytic enantioselective access to stereogenic CF_(3)-containingmolecules is of great interest for expediting the discovery of lead compounds that remain ***,enantioselective synthesis of valuable ketones featuring stereogenicα-CF_(3) has rarely been *** devise a general and modular approach to facilely access enantioenrichedα-CF_(3) ketones via nickel-catalyzed reductive cross-coupling of readily available acid chlorides and racemicα-CF_(3) alkyl bromides in an enantioconvergent fashion under mild *** protocol features neighboring directing group-free,high chemoselectivity,excellent functional group tolerance,facile scale-up,and notable amenability to straightforward downstream elaboration toward pharmaceutically useful enantioenrichedβ-trifluoromethylated secondary and tertiary alcohols,thus constituting a reliable,direct,practical,and efficient synthetic alternative to furnish enantiopureα-CF_(3) ***,an appropriate choice of the phosphine ligand as coligand plays an important role in high efficiency and asymmetric *** studies suggest a radical chain pathway.

关键词： nickel catalysis enantioselective trifluoromethyl ketones radical

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Effects of Light-Emitting Diode (LED) Red and Blue Light on the Growth and Photosynthetic Characteristics of <i>Momordica charantia</i>L.

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Journal of Agricultural Chemistry and Environment 2021年第1期10卷 1-15页

作者： Guoli Wang yongzhi chen Hongying Fan Ping Huang School of Life Science Huizhou University Huizhou China

With andromonoecious Momordica charantia L. (bitter gourd) as material, three light qualities (50 μmol·m-2·s-1) including white LED light (WL), blue monochromatic light (B, 465 nm), and red monochromatic light (R, 650 nm) were carried out to investigate their effects on seed germination, physiological and biochemical parameters, sex differentiation and photosynthetic characteristics of bitter gourd. The results showed that compared to the WL treatment, the R treatment significantly promoted seed germination, seedling height elongation and soluble sugar content, the B treatment significantly increased seedling stem diameter, reducing sugar content and soluble protein content, the R and B treatments both significantly reduced sucrose content, but their POD activity showed no significant difference. Compared with the R treatment, the B treatment significantly increased the total female flower number and female flower nod ratio in 30 nods of main stems. The study of photosynthetic characteristics found that the R and B treatments could effectively increase the stomatal conductance (GS) of leaves, significantly improved the net photosynthetic rate (Pn) compared to the WL treatment, and the effect of the B treatment was better. Compared to the R and WL treatments, the B treatment increased the maximum photosynthetic rate (Pmax), apparent quantum efficiency (AQE) and light saturation point (LSP), and reduced the dark respiration rate (Rd) and light compensation point (LCP) of the leaves. Fit light

关键词： Light-Emitting Diode (LED) Momordica charantia L. (Bitter Gourd) Photosynthetic Characteristics Light Response Curve Sex Differentiation

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SLC2A1在肝细胞癌中的表达及其临床意义

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中国普通外科杂志 2024年第7期33卷 1059-1069页

作者：陈勇治柏斗胜江苏省苏北人民医院/扬州大学附属苏北人民医院肝胆外科江苏扬州225009

背景与目的:溶质载体家族2成员1(SLC2A1)基因编码的葡萄糖转运蛋白1(GLUT1)与糖酵解途径密切相关,而糖酵解是恶性肿瘤供能的主要生理途径,因此,SLC2A1可能与多种恶性肿瘤的发生发展有关。鉴于SLC2A1在肝细胞癌(HCC)中的表达及生物学功... 详细信息

背景与目的:溶质载体家族2成员1(SLC2A1)基因编码的葡萄糖转运蛋白1(GLUT1)与糖酵解途径密切相关,而糖酵解是恶性肿瘤供能的主要生理途径,因此,SLC2A1可能与多种恶性肿瘤的发生发展有关。鉴于SLC2A1在肝细胞癌(HCC)中的表达及生物学功能并不完全清楚,本研究通过生物信息学方法和临床研究探讨SLC2A1在HCC中的表达及意义。方法:从癌症基因组图谱数据库(TCGA)下载HCC患者的RNA-seq数据与临床信息,分析SLC2A1在HCC中的表达、预后价值,以及对不同SLC2A1表达水平HCC患者差异表达基因做富集分析和相关性分析。收集江苏省苏北人民医院80例临床HCC患者的手术标本与临床病理资料,分析SLC2A1在HCC中的表达情况,以及SLC2A1表达水平与患者临床病理特征、预后的关系,并筛选影响患者预后的独立危险因素。结果:TCGA数据库分析结果显示,SLC2A1 mRNA在HCC中高表达,并且高表达患者的总生存期(HR=2.50,95%CI=1.76~3.56,P<0.001)、疾病特异性生存期(HR=2.13,95%CI=1.34~3.37,P=0.001)和无复发间期(HR=1.42,95%CI=1.05~1.93,P=0.025)均明显差于低表达患者;其表达水平与RNA甲基化、免疫细胞浸润程度有关(均P<0.05)。80例患者临床病理资料的比较分析结果显示,SLC2A1蛋白在HCC组织中的表达明显高于癌旁组织(P<0.05);SLC2A1表达水平与TNM分期、乙型病毒性肝炎和血管侵犯明显有关(均P<0.05)。单因素分析显示,TNM分期(HR=1.921,95%CI=1.365~1.554,P=0.01)、血管侵犯(HR=1.925,95%CI=1.253~2.958,P=0.003)、乙型病毒性肝炎(HR=1.365,95%CI=0.624~1.654,P=0.029),甲胎蛋白(HR=1.629,95%CI=1.063~2.479,P=0.025)和SLC2A1(HR=1.934,95%CI=1.261~2.965,P=0.002)与患者预后有关,多因素分析表明,血管侵犯(HR=1.657,95%CI=1.036~2.652,P=0.035)和SLC2A1(HR=1.753,95%CI=1.132~2.715,P=0.012)是HCC患者预后的独立危险因素。结论:SLC2A1在HCC中高表达,其高表达与患者不良预后密切相关。SLC2A1除了具有参与糖酵解功能外,还可能具有多种生物学功能,对其进一步研究有望为HCC的防治及预后评估找到新的靶点。

关键词：癌,肝细胞葡萄糖转运体1型预后计算生物学

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马克思企业管理理论与当代管理劳动的变化

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当代经济研究 2007年第10期 1-6页

作者：陈永志厦门大学经济学院厦门361005

马克思的企业管理理论,是从双重角度阐发的。梳理和重温马克思的管理理论,具有重要意义;在新科技革命作用下,一般劳动过程出现一系列新变化,引发了当代企业管理出现新的特点;现阶段的管理劳动,无论从自然过程抑或从经济过程看,都属于生... 详细信息

马克思的企业管理理论,是从双重角度阐发的。梳理和重温马克思的管理理论,具有重要意义;在新科技革命作用下,一般劳动过程出现一系列新变化,引发了当代企业管理出现新的特点;现阶段的管理劳动,无论从自然过程抑或从经济过程看,都属于生产劳动,而且是高级的复杂劳动,它比一般劳动的生产性大得多;从资本主义经济过程看,由于新科技革命的作用,当代资本主义管理的剥削方式更隐蔽,但剥削程度更高。

关键词：马克思管理劳动变化性质特点

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