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Journal of Environmental Sciences 2024年第10期144卷 148-158页

作者： Wenhui Huang Peiling Xu Xiang Li Yong Huang Hao Sun Wei Li Mao Zhang Miao Shi yan yuan School of Environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China Suzhou Hongyu Environmental Technology Company Limited by Shares Suzhou 215011China Suzhou Tianjun Environmental Technology Limited Company Suzhou 215011China Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment Suzhou University of Science and TechnologySuzhou 215009China

Humic acid(HA)is a typical refractory organicmatter,so it is of great significance to investigate its effect on the performance of Anammox granular *** the dosage ofHA≤50 mg/L,HA promotes the total nitrogen removal rate(NRR)to 1.45 kg/(m^(3)·day).When HA was between 50 and 100 mg/L,the NRR of Anammox was *** this time,the adsorption of HA causes the sludge to gradually turn fromred to brown,but the activities of heme and enzymes showed that its capacitywas not *** HA levels reached 250 mg/L,the NRR dropped to 0.11 kg/(m^(3)·day).Moderate HA levels promoted the release of extracellular polymeric substance(EPS),but excessive HA levels lead to a decrease in EPS *** inhibited Anammox activity,which indirectly hindered the transmission of substrate and accumulated substrate *** HA promoted the increase of heterotrophicmicrobial abundance in Anammox system,the microbial diversity decreased *** the increase of HA concentration,the abundance of Candidatus_Brocadia,the main functional microorganism of Anammox system,decreased gradually,while the abundance of Candidatus_Kuenenia increased gradually.

关键词： Anammox Landfill leachate Humic acid Heme Microbial community Enzyme activity

Formation of Ultrafine Apatite Fibers by Sol-gel/Electrospinning

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Chemical Research in Chinese Universities 2007年第3期23卷 366-369页

作者： DING Ya-mei yuan Xiao-yan ZHAO Jin GUO Wan-chun WANG Xiu-kui School of Materials Science and Engineering Tianjin University Tianjin 300072 P. R. China

Ultrafine apatite fibers were prepared by electrospinning of sol-gel precursor/poly（ vinyl pyrrolidone）（PVP） solutions followed by subsequent calcination. The as-electrospun and calcinated fibers were observed under a scanning electron microscope and an optical polarizing microscope. Results show that the morphology and the diameter of as-electrospun fibers strongly depend on the viscosity and the surface tension of sol-gel precursor/PVP solutions. After calcination, the smooth as-electrospun fibers shrink and the fiber diameter decreases because of the removal of the polymer. The chemical evolution upon the transformation of the precursor from a gel to the final apatite fibers was investigated by thermogravimetric-differenfial thermal analysis, X-ray diffraction, and Fourier transform infrared spectroscopy. It is thus suggested that the crystalline structure of the calcined fibers is largely influenced by the calcination temperature. After being calcined at 600 ℃, the apatite fibers with a diameter of about 280 nm containing β-tricalcium phosphate were obtained.

关键词： Apatite Ultrafine fiber Sol-gel Electrospinning

Gene polymorphisms associated with sudden decreases in heart rate during extensive peritoneal lavage with distilled water after gastrectomy

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World Journal of Gastrointestinal Surgery 2023年第10期15卷 2154-2170页

作者： Shuang Yao yan yuan Jun Zhang yang Yu Guang-Hua Luo Clinical Medical Research Center The Third Affiliated Hospital of Soochow UniversityChangzhou 213000Jiangsu ProvinceChina Department of Anesthesiology The Third Affiliated Hospital of Soochow UniversityChangzhou 213000Jiangsu ProvinceChina

BACKGROUND Our previous study found that the telomerase-associated protein 1(TEP1,rs938886 and rs1713449)and homo sapiens RecQ like helicase 5(RECQL5,rs820196)single nucleotide polymorphisms(SNPs)were associated with changes in heart rate(HR)≥30%during peritoneal lavage with distilled water after *** study established a single tube method for detecting these three SNPs using two-dimensional(2D)polymerase chain reaction(PCR),and investigated whether SNP-SNP and SNP-environment interactions increase the risk of high HR variability(HRV).AIM To investigate whether genotypes,genetic patterns,SNP-SNP and SNP-environment interactions were associated with *** 2D PCR was used to establish a single-tube method to detect TEP1 rs938886 and rs1713449 and RECQL5 rs820196,and the results were compared with those of sanger *** adjusting for confounders such as age,sex,smoking,hypertension,and thyroid dysfunction,a nonconditional logistic regression model was used to assess the associations between the genotypes and the genetic patterns(codominant,dominant,overdominant,recessive,and additive)of the three SNPs and a risk≥15%or≥30%of a sudden drop in HR during postoperative peritoneal lavage in patients with gastric ***-gene and geneenvironment interactions were analyzed using generalized multifactor dimensionality *** The coincidence rate between the 2D PCR and sequencing was 100%.When the HRV cutoff value was 15%,the patients with the RECQL5(rs820196)TC genotype had a higher risk of high HRV than those who had the TT genotype(odds ratio=1.97;95%CI:1.05-3.70;P=0.045).Under the codominant and overdominant models,the TC genotype of RECQL5(rs820196)was associated with a higher risk of HR decrease relative to the TT and TT+CC genotypes(P=0.031 and 0.016,respectively).When the HRV cutoff value was 30%,patients carrying the GC-TC genotypes of rs938886 and rs820196 showed a higher HRV risk when compared with the GG–TT genotype carriers

关键词： Homo sapiens RecQ like helicase 5 Telomerase-associated protein 1 Polymorphism Peritoneal lavage Heart rate variability Two-dimensional polymerase chain reaction

AEROBIC　EPOXIDATION　OF　STYRENE　CATALYZED　BY　MAGNESIUM　OXIDE　SUPPORTED　POLYTITAZANE　COBEST（III）　COMPLEXES

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Chinese Chemical Letters 1996年第8期7卷 749-752页

作者： yuan Yong yan Tie Jun WANG Jian Ping GUO Mei Yu HUANG Ying yan JLANG(InstitUte of Chemistry, Academia Sinica, Beijing 100080) Institute of Chemistiy Academia Sinica Beijing 100080

Magnesium oxide supported polghtazane-cobalt (III) complex has been prepared and foundto be capable of catalyzing the epoxidaton of styrene to form styrene oxide in 88.0 % yield in thepresence of isobutyraldehyde under an atmospheric pressure of molecular oxygen at roomtemperafor. XPS data shows that the high valent cobalt (III) is stabilized by the multidentate nitrogenligand of polytitazane. Dichloroethane is the best solvent chosen for this reaction. The catalyst can bereused for several times without any remarkable loss in catalytic activity and selectivity.

关键词： III COBEST BY AEROBIC

Performance Diagnosis of Controller Based on Eigenvector Subspace K-mean Clustering 36

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Performance Diagnosis of Controller Based on Eigenvector Sub...

Supercooling Suppression of Microencapsulated n-Alkanes by Introducing an Organic Gelator

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作者： Man Hao Wei-Hua Cao Min Wu yan yuan Zhen-Tao Liu School of Automation China University of Geosciences Hubei key Laboratory of Advanced Control and Intelligent Automation for Complex Systems

ISBN: (纸本)9781538629185

To diagnose the specific reasons that lead to deterioration of controller performance and improve the diagnostic accuracy,a performance diagnosis method based on eigenvector subspace K-mean clustering is ***,the number of standard deterioration performance subspace with different degrees of deterioration information is increased on the basis of the eigenvector subspace distance diagnosis method,in which multiple distance values between eigenvector subspaces are ***,K-mean clustering is used to divide these distance values into two classes,and the clustering center with a maximum number of points is selected as the representative ***,current performance degradation factor is attributed to the category that represented by the nearest standard performance *** simulation,a double-tank model is established,and simulation result shows that average accuracy of controller performance diagnosis reaches 99.4%approximately.

关键词： controller performance performance diagnosis eigenvector subspace K-mean clustering

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Chemical Research in Chinese Universities 2012年第3期28卷 539-545页

作者： ZHU Kong-ying WANG Shuang QI Heng-zhi LI Hui ZHAO Yun-hui yuan Xiao-yan Tianjin Key Laboratory of Composite and Functional Materials School of Materials Science and EngineeringTianjin UniversityTianjin 300072P.R.China Analysis and Measurement Center Tianjin UniversityTianjin 300072P.R.China

Supercooling of the microencapsulated phase change materials（PCMs） during cooling usually happens. This phenomenon can interfere with heat transfer and is necessary to further overcome. In this study, mela- mine-formaldehyde microcapsules containing two n-alkane PCMs, namely, n-dodecane（Cl2） or n-tetradecane（C14） were prepared by in situ polymerization. A small amount of n-hexatriacontane（C36） was introduced as an organic ge- lator into the core of microcapsules to cope with the supercooling problem. Analyses demonstrate that supercooling of the microencapsulated C12 or C14 was significantly suppressed by adding 3%（mass fraction） C36, without changing the spherical morphology and dispersibility. It could be also found that the enthalpy of microencapsulated CI2 or C14 containing C36 was similar to that of microencapsulated n-alkanes without C36, whereas the difference between onsets of crystallization and melting（degree of supercooling） is similar to that of those of pure n-alkanes, suggesting the re- markable suppression ability of the organic gelator on supercooling.

关键词： Supercooling Microcapsule Phase change material Gelator n-Alkane

Measurement of GaN/Ge（001） Heterojunction Valence Band Offset by X-Ray Photoelectron Spectroscopy

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Chinese Physics Letters 2010年第6期27卷 183-186页

作者： GUO yan LIU Xiang-Lin SONG Hua-Ping yanG An-Li ZHENG Gao-Lin WEI Hong-yuan yanG Shao-yan ZHU Qin-Sheng WANG Zhan-Guo Key Laboratory of Semiconductor Materials Science Institute of Semiconductors Chinese Academy of Sciences PO Box 912 Beijing 100083

X-ray photoelectron spectroscopy has been used to measure the valence band offset （VBO） at the GaN/Ge heterostructure interface. The VBO is directly determined to be 1.13 ±0.19 eV, according to the relationship between the conduction band offset AEc and the valence band offset △Ev：△Ec =EgGaN -EgGe - △Ev, and taking the room-temperature band-gaps as 3.4 and 0.67eV for GaN and Ge, respectively. The conduction band offset is deduced to be 1.6±0.19 eV, which indicates a type-I band alignment for GaN/Ge. Accurate determination of the valence and conduction band offsets is important for the use of GaN/Ge based devices.

关键词： GALLIUM nitride HETEROJUNCTIONS X-ray photoelectron spectroscopy SEMICONDUCTOR junctions CONDUCTION band TEMPERATURE effect ENERGY gaps (Physics)

RNA interference targeting NOX4 protects visual function in an experimental model of retinal detachment by alleviating blood-retinal barrier damage

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International Journal of Ophthalmology(English edition) 2021年第1期14卷 50-56页

作者： Kai Dong Nan yang Jie Ding yuan-Ye yan Li Lu Yi-Sai Wang Department of Ophthalmology Anhui Provincial HospitalAnhui Medical UniversityHefei 230001Anhui ProvinceChina Department of Ophthalmology the Second People’s Hospital of HefeiHefei 230001Anhui ProvinceChina Department of Ophthalmology Wannan Medical CollegeWuhu 241001Anhui ProvinceChina Department of Ophthalmology Eye Centerthe First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefei 230001Anhui ProvinceChina

AIM:To observe the effects of the inhibition of NADPH oxidase 4(NOX4)expression on the retinal vascular barriers and visual function after retinal detachment(RD).METHODS:RD model was established 3 wk after adenoassocianed virus vector *** retinal tissue was harvested 3 d after RD,and the death of retinal vascular endothelial cells and photoreceptors was observed using electron *** NOX4 expression was detected by Western *** microscopy was used to observe a retinal patch that had been perfused with Evans blue.A modified water maze test was used to detect the time required to find the platform on the water *** visual function of the rats was evaluated and reactive oxygen species(ROS)expression was detected by a fluorescence microplate ***:The retinal patch showed that NOX4 interference significantly reduced the destruction of the tight junctions between the retinal endothelium of RD rats and reduced *** blotting showed decreased expression of the NOX4 protein and decreased expression of ROS in retinal tissue;the Morris water maze test results showed that NOX4 interference significantly decreased the escape latency of the ***:NOX4 interference reduces the production of ROS in retinal vascular endothelial cells after experimental RD,thereby protecting the blood-retinal barrier and protecting visual function.

关键词： NOX4 adeno-associated virus retinal detachment blood-retinal barrier reactive oxygen species

Star-shaped conjugated oligoelectrolyte for bioimaging in living cells

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Chinese Science Bulletin 2013年第21期58卷 2570-2575页

作者： SONG WenLi JIANG RongCui yuan yan LU XiaoMei HU WenBo FAN QuLi HUANG Wei Key Laboratory for Organic Electronics & Information Displays (KLOEID) and Institute of Advanced Materials (IAM) Nanjing University of Posts & Telecommunications (NJUPT)

A new star-shaped oligoelectrolyte (TEFCOONa) with triphenylamine as the core, acetylene as linkage and anionic fluorenes as arms was obtained and used for direct imaging in living PANC-1 cells. Because of the hydrophobic conjugated groups of the oli-goelectrolyte, TEFCOONa can form nanospheres with an average diameter of^75 nm in 10 mmol/L PBS. These nanospheres possess a relatively high absolute quantum yield (16.5% in PBS), low cytotoxicity and can penetrate into the nucleus through the cytoplasm, which is essential for living cellular imaging. Collectively, these results validate our rational design of conjugated oligoelectrolyte and even hyper branched polymers-copolyelectrolyte as effective nanovectors for bioimaging and other clinical applications.

关键词：活细胞成像生物成像共轭星形超支化聚合物直接成像平均直径纳米微球

Diverse electronic and magnetic properties of CrS_(2) enabling strain-controlled 2D lateral heterostructure spintronic devices

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npj Computational Materials 2021年第1期7卷 704-712页

作者： Kaiyun Chen Junkai Deng yuan yan Qian Shi Tieyan Chang Xiangdong Ding Jun Sun Sen yang Jefferson Zhe Liu MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter State Key Laboratory for Mechanical Behavior of MaterialsXi’an Jiaotong UniversityXi’an 710049China Department of Mechanical Engineering The University of MelbourneParkvilleVIC 3010Australia

Lateral heterostructures of two-dimensional(2D)materials,integrating different phases or materials into a single piece of nanosheet,have attracted intensive research interests for electronic *** the 2D lateral heterostructures to spintronics demands more diverse electromagnetic properties of 2D *** this paper,using density functional theory calculations,we survey all IV,V,and VI group transition metal dichalcogenides(TMDs)and discover that CrS_(2)has the most diverse electronic and magnetic properties:antiferromagnetic(AFM)metallic 1T phase,non-magnetic(NM)semiconductor 2H phase,and ferromagnetic(FM)semiconductor 1T′phase with a Curie temperature of~1000 ***,we find that a tensile or compressive strain can turn the 1T′phase into a spin-up or spin-down *** strain tunability can be attributed to the lattice deformation under tensile/compressive strain that selectively promotes the spin-up/spin-down VBM(valence band bottom)orbital *** diverse electromagnetic properties and the strain tunability enable strain-controlled spintronic devices using a single piece of CrS_(2)nanosheet with improved energy *** a demo,a prototypical design of the spin-valve logic device is *** offers a promising solution to address the challenge of high energy consumption in miniaturized spintronic devices.

关键词： strain electronic magnetic