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Syntheses and Crystal Structures of Co(Ⅱ)Complexes with 5-Tert-butyl Isophthalic Acid

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Chinese Journal of Structural Chemistry 2010年第7期29卷 1108-1114页

作者： QIN Jian-Hua ju feng-Yang College of Chemistry and Chemical Engineering Luoyang Normal University Luoyang 471022 China

Two new Co（ Ⅱ） coordination polymers {[Co（Htbip）2（H2O）4]·（H2O）}n 1 and {[Co2（tbip）2Copa）1.5]（H2tbip）}n 2 （H2tbip = 5-tert-butyl isophtha]ic acid, bpa = 1,2-dis（4-pyri- dyl）ethane） have been synthesized under hydrothermal conditions and characterized by elemental analysis, IR spectroscopy and X-ray diffraction. Compound 1 exhibits a water-bridged 1-D linear chain which is extended by hydrogen bonds into a 3D supramolecular network, while compound 2 has a dinuclear unit extended by bpa ligand to form a 2-D layer.

关键词： Co(Ⅱ) complex 5-tert-butyl isophthalic acid crystal structure

Liver injury in COVID-19:Holds ferritinophagy-mediated ferroptosis accountable

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World Journal of Clinical Cases 2022年第36期10卷 13148-13156页

作者： feng-ju Jia Jing Han School of Nursing Qingdao UniversityQingdao 266071Shandong ProvinceChina

Even in patients without a history of liver disease,liver injury caused by coronavirus disease 2019(COVID-19)is gradually becoming more ***,the precise pathophysiological mechanisms behind COVID-19’s liver pathogenicity are still not fully *** hypothesize that inflammation may become worse by cytokine storms caused by the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)*** ferritin levels can initiate ferritinophagy mediated by nuclear receptor coactivator 4(NCOA4),which leads to iron elevation,and *** COVID-19 patients,ferroptosis can be restricted to reduce disease severity and liver damage by targeting NCOA4-mediated *** confirm the role of ferritinophagy-mediated ferroptosis in SARS-CoV-2 infection,further research is required.

关键词： COVID-19 Liver injury Ferritinophagy Ferroptosis Iron SARS-CoV-2

Numerical Investigation on Wet Steam Non-equilibrium Condensation Flow in Turbine Cascade

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Journal of Thermal Science 2012年第6期21卷 525-532页

作者： ju feng-ming YAN Pei-gang HAN Wan-jin School of Energy Science & Engineering Harbin Institute of Technology Harbin 150001 China

Based on the two-phase wet steam flow with spontaneous condensation, experimental verification and flow analysis on nozzle and 2D cascade are carried out. The 3D Reynolds-Averaged gas-liquid two-phase flow control equation solver is explored with k-e-kp turbulence model. Furthermore, 3D flow numerical simulation on the last stage stator of the steam turbine is carried out. The results show that a sudden pressure rise on blade suction surface is mainly caused by the droplet growth in condensation flow. The more backward the condensation position is in cascade passage, the less the sudden pressure rise from condensation is, and the larger the nucleation rate is, the maximum under-cooling and the number of droplets per unit volume are. Interaction of condensation wave and shock wave has imposed greater influence on the parameters of the blade cascade outlet.

关键词： turbine cascade wet steam non-equilibrium condensation two-phase flow

Temporal Dynamics and Performance Association of the Tetrasphaera-Enriched Microbiome for Enhanced Biological Phosphorus Removal

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Engineering 2023年第10期29卷 168-178页

作者： Hui Wang Yubo Wang Guoqing Zhang Ze Zhao feng ju College of Environmental and Resource Sciences Zhejiang UniversityHangzhou 310012China Key Laboratory of Coastal Environment and Resources of Zhejiang Province School of EngineeringWestlake UniversityHangzhou 310024China Institute of Advanced Technology Westlake Institute for Advanced StudyHangzhou 310024China Center of Synthetic Biology and Integrated Bioengineering School of EngineeringWestlake UniversityHangzhou 310024China Research Center for Industries of the Future Westlake UniversityHangzhou 310030China

Tetrasphaera have been recently identified based on the 16S ribosomal RNA(rRNA)gene as among the most abundant polyphosphate-accumulating organisms(PAOs)in global full-scale wastewater treatment plants(WWTPs)with enhanced biological phosphorus removal(EBPR).However,it is unclear how Tetrasphaera PAOs are selectively enriched in the context of the EBPR *** this study,an EBPR microbiome enriched with Tetrasphaera(accounting for 40%of 16S sequences on day 113)was built using a top-down design approach featuring multicarbon sources and a low dosage of *** microbiome showed enhanced nutrient removal(phosphorus removal~85%and nitrogen removal~80%)and increased phosphorus recovery(up to 23.2 times)compared with the seeding activated sludge from a local full-scale *** supply of 1 mg·L^(-1)allylthiourea promoted the coselection of Tetrasphaera PAOs and Microlunatus PAOs and sharply reduced the relative abundance of both ammonia oxidizer Nitrosomonas and putative competitors Brevundimonas and Paracoccus,facilitating the establishment of the EBPR *** on 16S rRNA gene analysis,a putative novel PAO species,EBPR-ASV0001,was identified with Tetrasphaera japonica as its closest *** study provides new knowledge on the establishment of a Tetrasphaera-enriched microbiome facilitated by allylthiourea,which can be further exploited to guide future process upgrading and optimization to achieve and/or enhance simultaneous biological phosphorus and nitrogen removal from high-strength wastewater.

关键词： Enhanced biological phosphorus removal(EBPR) Polyphosphate-accumulating organisms(PAOs) Tetrasphaera Microbiome Phosphorus recovery

Comparison of age-related changes between corneal and ocular aberration in young and mid-age myopic patients

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International Journal of Ophthalmology(English edition) 2011年第3期4卷 286-292页

作者： feng-ju Zhang, Meng-Meng Wang Beijing Tongren Eye Center Beijing Tongren Hosptial Capital Medical University Beijing 100730 China Department of Ophthalmology Gongren Hospital of Tangshan City Tangshan 063000 Hebei Province China Department of Ophthalmology 1 [st]Hospital of Dalian Medical University Dalian 116011 Liaoning Province China Department of Ophthalmology People Hosipital of Xinjiang Uygur Autonomous Region Urumqi 830001 Xinjiang Uygur Autonomous Region China

AIM: To study the dynamic character of aberration between the cornea and the ocular with aging, and to evaluate the symmetry of the aberrations between right and left eye in order to supply the data for clinic to do the refractive surgery reasonably. METHODS: This is a comparative case series study. 82 normal cases (164 eyes) including 37 females (74 eyes) and 45 males (90 eyes) were recruited through the routine examinations,Topolyzer and wavefront analysis. The average age was 25.9 +/- 5.0 years old (range 18 to 49 years old), and the mean spherical equivalent (SE) is -3.82 +/- 2.21D (range -1.00 to -6.00D). The changes of aberrations regarding age, the relationship between anterior corneal and total aberrations were analyzed,as well as the symmetry between right and left eyes by using Zernike terms. RESULTS: The Z (3) (1), RMS3 of corneal aberrations, Z (3) (1), Z (4) (0) RMS3 and RMS4 of ocular aberrations had a positive correlation with age. The zernike terms both in corneal and whole eye were significantly correlated between right and left eyes. CONCLUSION: The corneal horizontal coma, ocular horizontal coma and ocular spherical aberrations become to increase at the age of more than 40 years old. The dynamic change of aberration with aging, balance between corneal and ocular, and the symmetric character between left eye and right eye should be designed carefully in the treatment nomogram before the refractive surgery.

关键词： cornea ocular aberration age change character

Influential factors and control of water inrush in a coal seam as the main aquifer

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International Journal of Mining Science and Technology 2018年第2期28卷 187-193页

作者： Gao Rui Yan Hao ju feng Mei Xianchen Wang Xiulin Key Laboratory of Deep Coal Resource Mining Ministry of Education School of Mines China University of Mining and Technology State Key Laboratory for Geomechanics & Deep Underground Engineering China University of Mining and Technology Huadian Coal Industry Group Co. Ltd.

In this paper, a combination of field measurement, theoretical analysis and numerical simulation were used to study the main control factors of coal mine water inrush in a main aquifer coal seam and its control scheme. On the basis of revealing and analyzing the coal seam as the main aquifer in western coal mine of Xiao Jihan coal mine, the simulation software of PHASE-2D was applied to analyze the water inflow under different influencing factors. The results showed that water inflow increases logarithmically with the coal seam thickness, increases as a power function with the permeability coefficient of the coal seam, and increases linearly with the coal seam burial depth and the head pressure; The evaluation model for the factors of coal seam water inrush was gained by using nonlinear regression analysis with SPSS. The mine water inrush risk evaluation partition within the scope of the mining field was obtained,through the engineering application in Xiao Jihan coal mine. To ensure the safe and efficient production of the mine, we studied the coal mine water disaster prevention and control measures of a main aquifer coal seam in aspects of roadway driving and coal seam mining.

关键词： Coal seam Main aquifer Water inrush Influential factors Control

Entropic uncertainty relation of a qubit–qutrit Heisenberg spin model and its steering

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Communications in Theoretical Physics 2020年第12期72卷 123-129页

作者： feng-He ju Zuo-Yuan Zhang Jin-Ming Liu State Key Laboratory of Precision Spectroscopy East China Normal UniversityShanghai 200062China

We investigate the quantum-memory-assisted entropic uncertainty relation(QMA-EUR)in a Heisenberg XYZ mixed-spin(1/2,1)*** strength,Dzyaloshinskii–Moriya(DM)interaction and inhomogeneous magnetic field,respectively,contributing to QMA-EUR by a thermal entanglement in the hybrid-spin model are studied in ***,we compare the uncertainty of the bipartite hybrid model with those of qubit–qubit and qutrit–qutrit ***,the effects of local PT-symmetric operation and weak measurement on the steering of entropic uncertainty are *** find that the local PT-symmetric operation can reduce the entropic uncertainty,and the entropic uncertainty can also be decreased by weak measurement reversal.

关键词： entropic uncertainty relation Heisenberg XYZ model weak measurement PT-symmetry

Vertical transportation system of solid material for backfilling coal mining technology

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International Journal of Mining Science and Technology 2012年第1期22卷 41-45页

作者： ju feng Zhang Jixiong,Zhang Qiang School of Mines China University of Mining&TechnologyXuzhou 221008China State Key Laboratory of Coal Resources&Mine Safety China University of Mining&TechnologyXuzhou 221008China

For transportation of solid backfill material such as waste and fly ash from the surface to the bottom of the shaft in a fully mechanized backfilling coal backfilling coal mining technology, we developed a new vertical transportation system to transport this type of solid backfill material. Given the demands imposed on safely in feeding this material, we also investigated the structure and basic parameter of this system. For a mine in the Xingtai mining area the results show that: (1) a vertical transportation system should include three main parts, i.e., a feeding borehole, a maintenance chamber and a storage silo; (2) we determined that 486 mm is a suitable diameter for bore holes, the diameter of the storage silo is 6 m and its height 30 m in this vertical transportation system; (3) a conical buffer was developed to absorb the impact during the feeding process. To ensure normal implementation of fully mechanized backfilling coal mining technology and the safety of underground personnel, we propose a series of security technologies for anti-blockage, storage silo cleaning, high pressure air release and aspiration. This vertical transporting system has been applied in one this particular mine, which has fed about 4 million tons solid material with a feeding depth of 350 m and safely exploited 3 million tons of coal.

关键词： Fully mechanized backfilling coal mining Feeding bore hole Conical buffer Security guarantee

Overlying strata movement of recovering standing pillars with solid backfilling by physical simulation

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International Journal of Mining Science and Technology 2016年第2期26卷 301-307页

作者： An Baifu Miao Xiexing Zhang Jixiong ju feng Zhou Nan School of Mines China University of Mining & Technology State Key Laboratory of Geomechanics and Deep Underground Engineering China University of Mining & Technology

To analyze the overlying strata movement law of recovering room mining standing pillars with solid *** simulation experiments with sponge and wood as the backfilling simulation material were *** results show that:(i) The covering-rock mechanics of the overly strata comes from "two-arch structures + hinged girder + bend beam" to "backfilling material + hinged girder + bent beam" by increasing the fill ratio from 0%to 85%,the beginning of overlying strata movement appears later and the total duration of subsidence velocity increased from zero to the highest value *** trend of "single polarization" of the subsidence velocity curves becomes noticeable and the velocity variation trend becomes stable,(ii) The equiponderate aeolian sand was added to improve the anti-pressure ability of the loess,and the corresponding ground processing & transportation system was designed.

关键词： Room mining standing pillars Solid backfilling Physical simulation experiment Overlying strata movement