检索结果-南通市图书馆

Maternal health and fetal development:investigating the connection between maternal diseases and congenital anomalies of the kidneys and urinary tract

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Pediatrics 2024年第11期20卷 1196-1197页

作者： Wei-Zhen Tang Kang-jin huang Tai-Hang Liu Department of Bioinformatics School of Basic Medical SciencesChongqing Medical UniversityNo.1 Yixueyuan RdBox 197Chongqing400016China

Following an in-depth analysis of the latest study by Ma et *** the association between specific maternal diseases,including gestational diabetes and thyroid dysfunction,and an increased risk of congenital anomalies of the kidney and urinary tract(CAKUT)in offspring[1],we acknowledge the predictive model established and the capacity for early identification and risk ***,several issues may impact the interpretation of the results.

关键词： urinary congenital diseases

Fe-N co-doped coral-like hollow carbon shell toward boosting peroxymonosulfate activation for efficient degradation of tetracycline: Singlet oxygen-dominated non-radical pathway

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2023年第4期126卷 470-482页

作者： Wenjin Chen jin huang Yaqian Shen Ke Zhu Lele Lei Hongmei He Yushi Ai School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China

Fe-N co-doped coral-like hollow carbon shell (Fe-N-CS) was synthesized via a simply impregnation-pyrolysis *** Fe-N-CS showed an excellent ability for activating peroxymonosulfate (PMS),which could degrade about 93.74%tetracycline (20 mg/L) in 12 *** Fe-N-CS/PMS system exhibited a good anti-interference capacity of various pH,inorganic anions,HA and different water *** importantly,the Fe nanoparticles were anchored uniformly in the carbon layer,effectively limiting the metal *** quenching tests and electron spin resonance (ESR) manifested that non-radical singlet oxygen (1O_(2))was the main reactive oxygen species (ROS) for TC *** mechanism study showed that Fe nanoparticles,defect and graphite N played a key role in activating PMS to produce ***,three probable degradation pathways were proposed by using LC-MS ***,this work had a new insight for the synthesis of heterogeneous Fe-N-C catalysts in the advanced oxidation process based on PMS.

关键词： Fe-N co-doped Carbon shells Peroxymonosulfate Tetracycline Singlet oxygen

Tetracycline removal via adsorption and metal-free catalysis with 3D macroscopic N-doped porous carbon nanosheets:Non-radical mechanism and degradation pathway

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2022年第1期34卷 351-366页

作者： Yaqian Shen Ke Zhu Dongdong He jin huang Hongmei He Lele Lei Wenjin Chen School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China

Recently,metal-based carbon materials have been verified to be an effective persulfate activator,but secondary pollution caused by metal leaching is ***,a green metalfree 3D macroscopic N-doped porous carbon nanosheets(NPCN)was synthesized *** obtained NPCN showed high adsorption capacity of tetracycline(TC)and excellent persulfate(PS)activation ability,especially when calcined at 700℃(NPCN-700).The maximum adsorption capacity of NPCN-700 was 121.51 mg/g by H-bonds ***,the adsorption process followed pseudo-second-order kinetics model and Langmuir adsorption *** large specific surface area(365.27 mg/g)and hierarchical porous structure of NPCN-700 reduced the mass transfer resistance and increased the adsorption *** 96.39%of TC was removed after adding *** effective adsorption of the catalyst greatly shortened the time for the target organic molecules to migrate to the ***,the NPCN-700 demonstrated high reusability with the TC removal rate of 80.23%after 4 *** experiment and electron paramagnetic resonance(EPR)test confirmed the non-radical mechanism dominated by ^(1)O_(2).More importantly,the C=O groups,defects and Graphitic N acted as active sites to generate ^(1)O_(2).Correspondingly,electrochemical measurement revealed the direct electron transfer pathway of TC ***,multiple degradation intermediates were recognized by the LC-MS measurement and three possible degradation pathways were ***,the prepared NPCN had excellent application prospects for removal of antibiotics due to its remarkable adsorption and catalytic degradation capabilities.

关键词： 3D macroscopic N-doped porous carbon nanosheets Tetracycline Adsorption and metal-free catalysis Singlet oxygen

Laboratory-scale investigation of response characteristics of liquid-filled rock joints with different joint inclinations under dynamic loading

在线全文

学校读者我要写书评

暂无评论

Journal of Rock Mechanics and Geotechnical Engineering 2022年第2期14卷 396-406页

作者： jin huang Xiaoli Liu Danqing Song Jian Zhao Enzhi Wang Jianmin Zhang State Key Laboratory of Hydroscience and Engineering Tsinghua UniversityBeijing100084China Department of Civil Engineering Monash UniversityClaytonVIC3800Australia

In underground rock engineering,water-bearing faults may be subjected to dynamic loading,resulting in the coupling of hydraulic and dynamic *** the interaction mechanism between the stress waves induced by dynamic loadings and liquid-filled rock joints is therefore *** this study,an auxiliary device for simulating the liquid-filled layer was developed to analyze the dynamic response characteristics of liquid-filled rock joints in *** and polymethyl methacrylate(PMMA)specimens were chosen for testing,and high-amplitude shock waves induced by a split Hopkinson pressure bar(SHPB)were used to produce dynamic *** loading tests were conducted on liquid-filled rock joints with different joint *** energy propagation coefficient and peak liquid pressure were proposed to investigate the energy propagation and attenuation of waves propagating across the joints,as well as the dynamic response characteristics of the liquid in the liquid-filled rock *** the inclination angle range considered herein,the experimental results showed that the energy propagation coefficient gently diminished with increasing joint inclination,and smaller coefficient values were obtained for granite specimens compared with PMMA *** peak liquid pressure exhibited a gradually decreasing trend with increasing joint inclination,and the peak pressure for granite specimens was slightly higher than that for PMMA ***,this paper may provide a considerably better method for studying liquid-filled rock joints at the laboratory scale,and serves as a guide for interpreting the underlying mechanisms for interactions between stress waves and liquid-filled rock joints.

关键词： Liquid-filled rock joint Stress wave Laboratory investigation Wave propagation characteristics Liquid dynamic response

Effects of medium chain triglycerides on hepatic fatty acid oxidation in clofibrate-fed newborn piglets

在线全文

学校读者我要写书评

暂无评论

Animal Nutrition 2023年第1期12卷 334-344页

作者： jinan Zhao Brandon Pike jin huang Zhihua Feng Jack Odle Xi Lin Laboratory of Developmental Nutrition Department of Animal SciencesNorth Carolina State UniversityRaleighNC 27695USA Zinpro Corporation Eden PrairieMN 55344USA College of Biological Engineering Henan University of TechnologyZhengzhou450001China College of Animal Science and Technology Agricultural University of HebeiBaoding071001China

To investigate whether increasing tricarboxylic acid(TCA)cycle activity and ketogenic capacity would augment fatty acid(FA)oxidation induced by the peroxisome proliferator-activated receptor-alpha(PPARα)agonist clofibrate,suckling newborn piglets(n=54)were assigned to 8 groups following a 2(±clofibrate)×4(glycerol succinate[SUC],triglycerides of 2-methylpentanoic acid[T2M],valeric acid[TC5]and hexanoic acid[TC6])factorial *** group was fed an isocaloric milk formula containing either 0%or 0.35%clofibrate(wt/wt,dry matter basis)with 5%SUC,T2M,TC5 or TC6 for 5 *** 6 pigs served as newborn *** acid oxidation was examined in fresh homogenates of liver collected on d 6 using[1-^(14)C]palmitic acid(1 mM)as a substrate(0.265μCi/μmol).Measurements were performed in the absence or presence of L-carnitine(1 mM)or inhibitors of 3-hydroxy-3-methylglutaryl-CoA synthase(L659699,1.6μM)or acetoacetate-CoA deacylase(iodoacetamide,50μM).Without clofibrate stimulation,^(14)C accumulation in CO_(2) was higher from piglets fed diets containing T2M and TC5 than SUC,but similar to those fed *** clofibrate stimulation,accumulation also was higher in homogenates from piglets fed TC5 than all other dietary *** between clofibrate and carnitine or the inhibitors were observed(P=0.0004)for acid soluble products(ASP).In vitro addition of carnitine increased^(14)C-ASP(P<0.0001)above all other treatments,regardless of clofibrate *** percentage of^(14)C in CO_(2) was higher(P=0.0023)in TC5 than in the control *** these results we suggest that dietary supplementation of anaplerotic and ketogenic FA could impact FA oxidation and modify the metabolism of acetyl-CoA(product ofβ-oxidation)via alteration of TCA cycle activity,but the modification has no significant impact on the hepatic FA oxidative capacity induced by PPARα.In addition,the availability of carnitine is a critical element to maintain FA oxidation during the neonatal perio

关键词： PPARα Clofibrate Newborn piglets Medium chain triglyceride(MCT) Hepatic fatty acid oxidation

Investigation of spectrum blue shift in organic quantum well electroluminescent devices

在线全文

学校读者我要写书评

暂无评论

Optoelectronics Letters 2007年第1期3卷 37-39页

作者： huang jin-zhao XU Zheng Key Laboratory of Luminescence and Optical Information Ministry of Education Institute of Optoelectronic Technology Beijing Jiaotong University Beijing 100044 China

In this paper, the organic quantum well devices,which are similar to the type-Ⅱ quantum well of inorganic semiconductor, have been fabricated, in which the NPB (N,N’-Di-[(1-naphthalenyl)-N,N’-diphenyl]-(1,1’-biphenyl)-4,4’-diamine) and Alq3 (Tris-(8-quinolinolato)aluminum) act as the potential barrier layer and the potential well layer, respectively. In the electroluminescence, the blue shift of spectrum with the decreasing of well width is observed for the device with different well width, and this is interpreted by combination of quantum size effect and exciton confinement effect. The blue shift of spectrum with increasing applied voltage is observed for the same device, and this is interpreted in terms of polarization effect and quantum size effect.

关键词：有机量子阱场致发光装置光谱蓝移势垒层极化效应

Separation of liquefied product of Salix psammophila by column chromatography and structure analysis of its components

在线全文

学校读者我要写书评

暂无评论

Forestry Studies in China 2008年第4期10卷 274-279页

作者： GAO Guan-hui huang jin-tian College of Material Science and Art Design Inner Mongolia Agricultural University Huhhot 010018 E R. China Institute of Materials Science and Engineering Ocean University of China Qingdao 266100 E R. China

The liquefied product of Salixpsammophila wood was separated by thin-layer chromatography （TLC） and column chromatography, and its structure was identified by nuclear magnetic resonance （NMR） spectra in our study. The separation result indicates that the sample of liquefied S. psammophila contained at least two categories of components. The structure of the main components was guaiacyl C-1, C-2 of the hydroxyphenyl propane, i.e., the aromatic nucleus protons of lignin. Degradation and polycondensation reactions occurred when the S. psammophila wood was liquefied in phenol. Polycondensation reactions occurred among the depolymerization products from cellulose, the aromatic depolymerization products from lignin and the products of the displacement reactions between phenoxide ion and cellulose.

关键词： liquefied residue of Salix psammophila thin-layer chromatography (TLC) column chromatography separation nuclearmagnetic resonance (NMR)

Induction motor rotor fault diagnosis method based on double PQ transformation

在线全文

学校读者我要写书评

暂无评论

Frontiers of Electrical and Electronic Engineering in China 2007年第1期2卷 117-122页

作者： huang jin NIU Faliang YANG Jiaqiang College of Electrical Engineering Zhejiang UniversityHangzhou 310027China

This paper presents a new rotor fault diagnosis method for induction motors which is based on the double PQ *** construct the PQ transformation matrix with the positive sequence fundamental voltage components and their Hilbert transformation as *** active power P and the reactive power Q are obtained through the PQ transformation of the stator *** both P and Q are constant for a healthy motor,they are represented by a dot on the PQ *** the P and Q for a rotor broken bar motor are represented by an ellipse because they comprise an additional frequency component 2sf_(s)(s is the slip and f_(s) is the supply frequency).Thus,by distinguishing these two different patterns,the rotor broken bar fault is *** use the major radius of the ellipse as the fault indicator and the distance between the point of no-load condition and the center of the ellipse on the PQ plane as its normalization *** thus arrive at the fault severity factor which is fairly independent of the load level and the inertia value of the induction *** results have demonstrated that the proposed method is effective in identifying the rotor-broken-bars fault and at determining the severity of the fault.

关键词： PQ transformation rotor broken bars fault diagnosis fault-severity factor induction motors

Antistatic Structural Color and Photoluminescent Membranes from Co-assembling Cellulose Nanocrystals and Carbon Nanomaterials for Anti-counterfeiting

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2020年第10期38卷 1061-1071,I0005页

作者： Si-Yuan Liu Yan-Bin Gong Shan Ma Yu-Huan Wang Lin Gan jin huang School of Chemistry and Chemical Engineering Chongqing Key Laboratory of Soft:Matter Material Chemistry and Function Manufacturingand"the Belt and Road(B&R)"International Joint Research Laboratory of Sustainable MaterialsSouthwest UniversilyChongqing 400715China Cllege ofChemistryand Molecular Science Wuhan UniversityWuhan 430072 China

Static charges on optical ant-counterfeiting membranes may lead to materials structural changes,dust stain aggravation,and misreading of optical *** conductive particles is a common way to transfer accumulative charges,but the key issue is how to achieve high dispersion and effective distribution of *** to the strategy of assembly-induced structural colors,cellulose nanocrystals(CNCS)were employed as a solid emulsifier to stabilize hydrophobic carbon nanoparticles(CNPs)in aqueous media;*** solvent evaporation-modulated co-assembly under a condition of 30°C and 20 RH%,the binary suspensions containing 2wt% CNC and CNPs with the equivalent concentration relative to CNC ranged from 1:40 to 1:10 were used to prepare antistatic composite *** chemistry regulation of CNCs was applied to optimize the dispersiblity of CNPs and the orientation of assembled CNC arrays,and the hydrophilic CNCS were more favorable for dispersion and assembly of binary suspension ***,one dimension carbon nanotube(CNT)and zero-dimension carbon black(CB)were found to show better dispersibility than two dimension graphene,which was verified by a semi-quantitative theoretical ***,the stable binary systems of CNT/CNC and CB/CNC were chosen for co-assembly as membranes,and the uniaxial orientation could be optimized as the fll-width of 9.8°at half maximum deviation angle while the surface resistivity could also drop down to 3.42 × 102 *** structural color character of such paper homology and antistatic integrated membranes contributes to optical information hiding and-reading,and shows great potential as optical mark recognition materials for electrostatic discharge protective packaging and *** applications.

关键词： Cellulose nanocrystal Solid-state photoluminescent Carbon nanoparticles Antistatic