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Sludge reduction with Tubificidae and the impact on the performance of the wastewater treatment process

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Journal of Environmental Sciences 2007年第3期19卷 257-263页

作者： GUO Xue-song liU Jun-xin WEI yuan-song li lin Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

To reduce excess sludge, a Tubificidae reactor was combined with an integrated oxidation ditch with vertical circle （IODVC）, and a new integrated system was developed for wastewater treatment, A pilot-scale of this integrated system was tested to investigate the sludge reduction with Tubificidae and the impact on effluent quality and sludge production. The dominant worm was Branchnria Sowerbyi in the Tubificidae reactor after inoculation of Branchnria Sowerbyi and limnodrilns sp., and the maximal volume density of wet Tubificidae in vessels of the Tubificidae reactor was 17600 g/m^3. Two operational modes, treating the excess sludge （first mode） and the returned sludge （second mode） of IODVC by the Tubificidae reactor, were used in this experiment. The results showed that the excess sludge reduction rate was 46.4% in the first mode, and the average sludge yield of the integrated system was 6.19× 10^-5 kg SS/kg COD in the second mode. Though the sludge returned to IODVC via the Tubificidae reactor, it had little impact on the effluent quality and the sludge characteristics of the IODVC. No new type of recalcitrant substance in the supernatant was discharged into the environment when the sludge was treated by Tubificidae. The experimental results also indicated that no significant changes occurred on the viscosity, specific resistance, and the floc size distribution of the sludge.

关键词： integrated wastewater treatment system sludge reduction wastewater treatment Tubificidae

Black Box Modeling Method and Its Application in Refractories Techniques

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China's Refractories 2012年第4期21卷 1-6页

作者： WANG Jiezeng yuan lin YE Yahong li Penghai WANG Juntao Ruitai Materials Technology Co. Ltd. Beijing 100024 China

Concept of black box, condition of modeling and control methods were introduced. Taking high purity silica brick as an example, the silica brick featured with high purity, low porosity, low true density and high strength was developed through problem analysis, test design, modeling and optimization. Using information technology to upgrade refractories industry was discussed.

关键词： black box modeling optimization techniques refractories

I_(2)-Mediated[3+2]annulation of methyl-azaarenes with alkyl_(2)-isocyanoacetates or amino acid ester hydrochlorides:selective synthesis of iodine-func-tionalized and non-iodine-functionalized fused imidazoles

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Organic Chemistry Frontiers 2022年第5期9卷 1403-1409页

作者： Yong-Ji Hu Yu Zhou Jing-Jing Gao Han Zhang Kai-Rui Yang Jia-Jun li Xiao-Xin Yan yuan-lin li Yan-Ping Zhu School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug EvaluationMinistry of EducationCollaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of ShandongYantai UniversityShandongYantai264005P.R.China

An I_(2)-mediated[3+2]annulation of methyl-azaarenes with alkyl_(2)-isocyanoacetates or amino acid ester hydrochlorides has been *** strategy involves CuN bond cleavage of isocyanides and can selectively synthesize iodine-functionalized and non-iodine-functionalized fused ***-up experiments and arylation,alkynylation,alkenylation and selenization of iodine-functionalized products demonstrated the potential applications of this reaction.

关键词： reaction iodine fused

Immunologic role of nitric oxide in acute rejection of golden hamster to rat liver xenotransplantation

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World Journal of Gastroenterology 2002年第4期8卷 746-751页

作者： Tong-Jin Diao Tong-Ye yuan You-lin li Department of General Surgery and Hepatobiliary Surgery,the Chinese PLA Navy 401 Hospital Qingdao 266071,China Department of General Surgery and Hepatobiliary Surgery Chinese PLA 401th Navy Hospital Qingdao 266071 Shandong Province China. diao tongjin@***

AIM: To evaluate the immunologic role and expressionsignificances of nitric oxide(NO), nitric oxide synthase(NOS),and its isoenzyme in acute rejection to liverxenografts from golden hamster in ***: liver transplantations were randomlydivided into five groups(n＝6-9):isografts (group I );xenografts (groupⅡ); xenografts plus cyclosporinetreatment (group Ⅲ), xenografts pluscyclophosphamide treatment combined withsplenectomy (group Ⅳ), and xenografts usingcyclophosphamide in combination with splenectomy(group Ⅳ) and xenografts using splenectomy inaddition to cyclophosphamide and cyclosporinetreatments(group V) .The levels of ALT, TNF- α, andnitric oxide production(NOx) in serum of reciprentswere examined,and expressions of type Ⅱ (iNOS) andtypeⅢ (cNOS) nitric oxide synthase(NOS)-inducibleNOS(iNOS) and constitutive NOS(cNOS) wereobserved by NADPH diaphorase histochemical andimmunohistochemical ***: The level of serum ALT, activity of serumTNF-α and systemic levels of NO metabolite in groupsⅡand Ⅳ were higher than those of groups Ⅰ andy(serum ALT, 2416±475, 2540±82.5) nkat. L-1 vs(556.8±43.5, 677.30±38.2 ) nkat. L-1, P＜0.01;(serum TNF-α, 353.5±16.1,444.6±28.1) ng.L-1 vs38.5±5.2, 52.0±5.7) ng.L-1, P＜0.01; (serum NOx514.6 ± 18.1, 336.0 ± 43.0 )nmol.g-1, vs 26.1 ± 5.7, 27.7±6.0) nmol.g-1, P＜*** in group Ⅲcan repress the cellular immune response and thesynthesis of nitric oxide and the expression of NOsynthase,but not prolong the liver *** over-expression of NOS, iNOS and cNOSin liver xenograft rejection in groups Ⅱand Ⅳ weredetected by NADPH diaphorase histochemical andimmunohistochemical ***: The degrees of acute rejection can beeffectively repressed in golden hamster to rat liverxenografts with splenectomy and cyclosporine. Nitricoxide metabolites, and nitric oxide synthase and itsisoenzymes,above all inducible NOS (iNOS) can beused as potential diagnostic markers for acuterejection in liver transplantatio

关键词：肝脏异种移植动物实验急性排斥反应作用机制氮氧化物

Mainchain conformation ordering self-assembly tailored room temperature phosphorescence emission

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Science China Chemistry 2025年第1期68卷 329-336页

作者： Yuzhu li Yumeng Gao Feng Tian Yu Wang yuan Yao Shaoliang lin Xiang Ma Binbin Xu Shanghai Key Laboratory of Advanced Polymeric Materials Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Key Laboratory for Advance Materials and Feringa Noble Prize Scientist Joint Research Centre Frontiers Science for Materiobiology and Dynamic Chemistry School of Chemistry and Molecular Engineering East China University of Science & Technology

Developing organic room-temperature phosphorescence （RTP） materials with a wide range of tunable-emission is significant in expanding the applications of RTP ***,we rationally designed amphiphilic alternating copolymers poly(1,2-bis（4-alkoxyphenyl）ethane-1,2-dione-alt-（ethylene glycol）x)(P（Bz-alt-EGx）) that combined the advantage of alternating benzil and EGxskeleton,and tunable mainchain *** a mainchain conformation ordering assembly （COA） process,P（Bz-alt-EGx） self-assembled into well-defined platelets,and such assemblies emitted blue RTP at ca.425 nm due to the ordered folded-chain conformation and confined *** contrast,traditional self-assembly （TA） of P（Bz-alt-EGx） obtained less ordered aggregates,such as asymmetric worms,vesicles,and rod-like *** resultant less ordered aggregates exhibited yellow-green RTP at ca.550 *** wide-tuning RTP emission in solution （between blue and yellow-green,over125 nm） is realized using the P（Bz-alt-EGx） alternating copolymers under the treatment of different self-assembly *** study uncovers a new strategy to tailor the RTP emission through different self-assembly pathways and holds great promise for the fabrication of advanced optical materials.

关键词： self-assembly conformation ordering alternating copolymer phosphorescence emission

Correlation between the rock mass properties and maximum horizontal stress:A case study of overcoring stress measurements

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 39-48页

作者： Peng li Meifeng Cai Shengjun Miao yuan li Yu Wang Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines University of Science and Technology BeijingBeijing 100083China State Key Laboratory of Coal Resources and Safe Mining China University of Mining and TechnologyXuzhou 221116China

Understanding the mechanical properties of the lithologies is crucial to accurately determine the horizontal stress *** investigate the correlation between the rock mass properties and maximum horizontal stress,the three-dimensional(3D)stress tensors at 89 measuring points determined using an improved overcoring technique in nine mines in China were adopted,a newly defined characteristic parameter C_(ERP)was proposed as an indicator for evaluating the structural properties of rock masses,and a fuzzy relation matrix was established using the information distribution *** results indicate that both the vertical stress and horizontal stress exhibit a good linear growth relationship with *** is no remarkable correlation between the elastic modulus,Poisson's ratio and depth,and the distribution of data points is scattered and ***,there is no obvious relationship between the rock quality designation(RQD)and *** maximum horizontal stress σ_(H) is a function of rock properties,showing a certain linear relationship with the C_(ERP)at the same *** addition,the overall change trend of σ_(H) determined by the established fuzzy identification method is to increase with the increase of C_(ERP).The fuzzy identification method also demonstrates a relatively detailed local relationship betweenσ_H and C_(ERP),and the predicted curve rises in a fluctuating way,which is in accord well with the measured stress data.

关键词： overcoring stress measurements elastic modulus Poisson's ratio rock quality designation maximum horizontal stress fuzzy identification

SYNTHESIS OF HYDROCARBONS FROM CO2 AND H2 OVER Fe/C CATALYST

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Journal of Energy Chemistry 1994年第4期 361-367页

作者： lin Pei-Zi LU Zhen -Ju XU Chang-Hai LUO Hong-yuan lin li-Wu liANG Dong-BaiDalian Institude of Chemical Physics, Academia Sinica Dalian, liaoning 116023

The production of hydrocarbons by hydrogenation of COis one ofthe most challenging aims in Cchemistry. In this work, we studiedCOhydrogenation over iron catalyst supported on carbon under differentreaction conditions. The products of COhydrogenation on Fe/C catalyst weremainly hydrocarbons including more than 70% Chydrocarbons. When thereaction temperature and pressure were elevated,the COconversion and theselectivity to hydrocarbon（HC） products increased. It was also found that theaddition of Cu onto Fe/C catalyst has an apperent effect on the activity andselectivity of Fe/C catalyst. It increased the COconversion and the selectivityto total HC Products to 62.8% and 100% respectively. The results obtainedfrom TPR and M（?）ssbauer spectroscopy proved that the iron was reduced mucheasier in Fe-Cu/C than in the Fe/C catalyst.

关键词： Fe Cu TPR SYNTHESIS OF HYDROCARBONS FROM CO2 AND H2 OVER Fe/C CATALYST CO

Fine-tuning the spatial allocation of phytohormones for smart canopy, smart breeding, and smart agriculture

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Science China life Sciences 2025年第1期68卷 309-310页

作者： Tao Zhou lin li National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University HuBei HongShan Laboratory

The dual challenges of global climate change and population growth have increased demand for higher crop yields per unit area. The innovative technology of smart agriculture aims to synergize breeding, cultivation, and production through the application of biological and informatics technologies. Historically, the “Green Revolution” introduced semidwarf varieties of certain key crops by utilizing mutations affecting gibberellin pathways, which significantly increased planting densities and yields.

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Decision making module based on stochastic magnetic tunnel junctions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 202-209页

作者： Yifan Miao li Zhao Yajun Zhang Zhe yuan Center for Advanced Quantum Studies and Department of Physics Beijing Normal University Institute for Nanoelectric Devices and Quantum Computing Fudan University Interdisciplinary Center for Theoretical Physics and Information Sciences Fudan University

In biological neural systems, noise is ubiquitous but does not affect the correct decisions made in the complex cognitive ***-making in biological neural system is typically achieved by accumulating input information over a period of *** by recent developments in neurosciences, we design a decision-making module based on spintronic devices, utilizing superparamagnetic tunnel junctions as artificial neurons. The feasibility of this decision-making module is verified through circuit simulations. Taking a multi-layer perceptron as an example, the module significantly improves the accuracy of the perceptron in the handwritten digit recognition task. Furthermore, the spintronic decision-making module offers advantages over the conventional pooling methods, such as adaptive decision time, high performance and the absence of analog-to-digital conversion. The decision-making module is flexible to be integrated into artificial neural networks and provides a general yet effective solution to enhance performance against device noise.

关键词： neuromorphic computing spintronics magnetic tunnel junction neural networks