检索结果-南通市图书馆

Nano Research 2024年第5期17卷 4582-4592页

作者： Tao Han Shufang Ding Zifan Wang Sirong Jiang Pengjiang jing Tianshang yi Yaqi Chen Chunzhi Jiang Xiaofeng zhang Microelectronics and Optoelectronics Technology Key Laboratory of Hunan Higher Education School of Physics and Electronic Electrical EngineeringXiangnan UniversityChenzhou 423000China National Engineering Laboratory for Modern Materials Surface Engineering Technology&The Key Lab of Guangdong for Modern Surface Engineering Technology Guangdong Institute of New MaterialsGuangdong Academy of SciencesGuangzhou 510650China

Thermal barrier coatings(TBCs)in gas turbine engines are used in expressly harsh environments;thus,assessing TBC integrity status is critical for safety and ***,traditional periodic maintenance involves visual inspections of the TBCs,requiring the gas turbine to be decommissioned and partially *** importantly,tiny defects or internal damages that easily cause coating failure cannot be *** this work,a new nondestructive evaluation(NDE)technique of TBCs based on quantum dot(QD)anion exchange is first explored *** exchanging anions between the Cl ions and the CsPbBr_(3) QDs,the degrees of salt corrosion of the TBCs are *** resultant NDE technique shows that the colour of the TBCs obviously changes from green to blue,accompanied by a large blueshift(~100 nm)of the photoluminescence(PL)peak *** addition,the relationship between the PL peak position and coating thermophysical properties indicates that the precision of this NDE technique may easily identify theμm-level of the thermal growth oxide(TGO)changes inside the TBCs.

关键词： thermal barrier coatings nondestructive evaluation CsPbBr_(3)quantum dot anion exchange thermal growth oxide

Modulating the electrode–electrolyte interface enables switchable selectivity in electrocatalytic furfural reduction

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

Science China Chemistry 2024年第10期67卷 3193-3194页

作者： jingfang zhang yi Huang Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education School of Chemical Engineering&PharmacyWuhan Institute of TechnologyWuhan 430205China College of Chemistry Central China Normal UniversityWuhan 430079China

Furfural(FF),an important bio-based platform molecule,can be valorized to high-value-added chemicals(e.g.,furfuryl alcohol(FA)or 2-methylfuran(MF))through catalytic hydrogenation[1].The traditional thermocatalytic transformation of FF always requires high-temperature and highpressure conditions[2].Accordingly,electrocatalytic hydrogenation is emerging as a promising approach for the selective reduction of FF to FA or MF under environmentally friendly and benign conditions.

关键词： hydrogenation electrolyte selectivity

Synergy of phosphorus vacancies and build-in electric field into NiCo/NiCoP Mott-Schottky integrated electrode for enhanced water splitting performance

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2024年第2期35卷 604-610页

作者： Xiaochen zhang Hui Xue jing Sun Niankun Guo Tianshan Song Jiawen Sun yi-Ru Hao Qin Wang College of Chemistry and Chemical Engineering Inner Mongolia UniversityHohhot 010021China

Vacancy engineering and Mott-Schottky heterostructure can accelerate charge transfer,regulate adsorption energy of reaction intermediates,and provide additional active sites,which are regarded as valid means for improving catalytic ***,the underlying mechanism of synergistic regulation of interfacial charge transfer and optimization of electrocatalytic activity by combining vacancy and Mott-Schottky junction remains ***,the growth of a bifunctional NiCo/NiCoP Mott-Schottky electrode with abundant phosphorus vacancies on foam nickel(NF)has been synthesized through continuous phosphating and reduction *** obtained NiCo/NiCoP heterojunctions show remarkable OER and HER activities,and the overpotentials for OER and HER are as low as 117 and 60 mV at 10 mA/cm^(2) in 1 mol/L KOH,***,as both the cathode and anode of overall water splitting,the voltage of the bifunctional NiCo/NiCoP electrocatalyst is 1.44 V at 10 mA/cm^(2),which are far exceeding the benchmark commercial *** theoretical calculation results confirm that the phosphorus vacancies and build-in electric field can effectively accelerate ion and electron transfer between NiCo alloy and NiCoP semiconductor,tailor the electronic structure of the metal centers and lower the Gibbs free energy of the ***,the unique self-supported integrated structure is beneficial to facilitate the exposure of the active site,avoid catalyst shedding,thus improving the activity and structural stability of NiCo/*** study provides an avenue for the controllable synthesis and performance optimization of Mott-Schottky electrocatalysts.

关键词： Mott-Schottky Build-in electric field Phosphorus vacancies Phosphides Overall water splitting

宫颈鳞状细胞癌组织LncRNA DCST1-AS1、LncRNA MCM3AP-AS1表达与增殖侵袭基因和预后的关系

在线全文

学校读者我要写书评

暂无评论

现代生物医学进展 2024年第10期24卷 1985-1990页

作者：邱丽君张静怡袁健珊马晴晴葛格王云洁苏州大学附属第二医院妇产科江苏苏州215000

目的:探讨宫颈鳞状细胞癌(CSCC)组织长链非编码核糖核酸(LncRNA)DC-STAMP结构域1-反义1(DCST1-AS1)、LncRNA MCM3AP反义RNA 1(MCM3AP-AS1)表达与增殖侵袭基因和预后的关系。方法:选择2018年1月至2020年1月苏州大学第二附属医院收治的124... 详细信息

目的:探讨宫颈鳞状细胞癌(CSCC)组织长链非编码核糖核酸(LncRNA)DC-STAMP结构域1-反义1(DCST1-AS1)、LncRNA MCM3AP反义RNA 1(MCM3AP-AS1)表达与增殖侵袭基因和预后的关系。方法:选择2018年1月至2020年1月苏州大学第二附属医院收治的124例CSCC患者,取CSCC组织及其癌旁正常组织,实时荧光定量聚合酶链反应(qRT-PCR)检测LncRNA DCST1-AS1、LncRNA MCM3AP-AS1以及增殖基因(YAP1、Piwil2、EZH2、PKCε)和侵袭基因(Rab11、TUG1、Gli1、FoxM1)m RNA表达。患者出院后随访3年。Pearson相关性分析Lnc RNA DCST1-AS1、Lnc RNA MCM3AP-AS1表达与增殖基因、侵袭基因的相关性。分析Lnc RNA DCST1-AS1、Lnc RNA MCM3AP-AS1表达与临床病理特征的关系。绘制Kaplan-Meier曲线分析预后情况,多因素COX回归分析影响CSCC患者预后的因素。结果:CSCC癌组织中Lnc RNA DCST1-AS1表达高于癌旁组织(P<0.05),Lnc RNA MCM3AP-AS1表达低于癌旁组织(P<0.05)。YAP1、Piwil2、EZH2、PKCε、Rab11、TUG1、Gli1、FoxM1 m RNA水平与CSCC癌组织中Lnc RNA DCST1-AS1表达呈正相关(P<0.05),与Lnc RNA MCM3AP-AS1呈负相关(P<0.05)。低中度分化、FIGO分期Ⅲa期、盆腔淋巴结转移CSCC患者癌组织中Lnc RNA DCST1-AS1表达高于高度分化、FIGO分期Ⅰ~Ⅱ期、无盆腔淋巴结转移宫颈癌患者(P<0.05),Lnc RNA MCM3AP-AS1表达低于高度分化、FIGO分期Ⅰ~Ⅱ期、无盆腔淋巴结转移宫颈癌患者(P<0.05)。Lnc RNA DCST1-AS1高表达、Lnc RNA MCM3AP-AS1低表达CSCC患者3年总生存率低于Lnc RNA DCST1-AS1低表达、Lnc RNA MCM3AP-AS1高表达患者(P<0.05)。多因素COX回归分析显示盆腔淋巴结转移、Lnc RNA DCST1-AS1高表达是CSCC患者预后不良的危险因素(P<0.05),Lnc RNA MCM3AP-AS1高表达是保护因素(P<0.05)。结论:CSCC组织中LncRNA DCST1-AS1表达上调,LncRNA MCM3AP-AS1表达下调,且与CSCC增殖侵袭和预后不良有关。

关键词：宫颈鳞状细胞癌 LncRNA DCST1-AS1 LncRNA MCM3AP-AS1 增殖侵袭基因预后

Elliptical encirclement control capable of reinforcing performances for UAVs around a dynamic target

在线全文

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2024年第2期32卷 104-119页

作者： Fei zhang Xingling Shao yi Xia Wendong zhang National Key Laboratory for Electronic Measurement Technology School of Instrument and ElectronicsNorth University of ChinaTaiyuan030051China

Most researches associated with target encircling control are focused on moving along a circular orbit under an ideal environment free from external ***,elliptical encirclement with a time-varying observation radius,may permit a more flexible and high-efficacy enclosing solution,whilst the non-orthogonal property between axial and tangential speed components,non-ignorable environmental perturbations,and strict assignment requirements empower elliptical encircling control to be more challenging,and the relevant investigations are still *** this line,an appointed-time elliptical encircling control rule capable of reinforcing circumnavigation performances is developed to enable Unmanned Aerial Vehicles(UAVs)to move along a specified elliptical path within a predetermined reaching *** remarkable merits of the designed strategy are that the relative distance controlling error can be guaranteed to evolve within specified regions with a designer-specified convergence ***,wind perturbations can be online counteracted based on an unknown system dynamics estimator(USDE)with only one regulating parameter and high computational *** tool demonstrates that all involved error variables are ultimately limited,and simulations are implemented to confirm the usability of the suggested control algorithm.

关键词： Elliptical encirclement Reinforced performances Wind perturbations UAVs

Emerging roles of exosomes in oral diseases progression

在线全文

学校读者我要写书评

暂无评论

International Journal of Oral Science 2024年第1期16卷 36-51页

作者： Jiayi Wang Junjun jing Chenchen Zhou yi Fan State Key Laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Department of Cariology and Endodontics West China Hospital of StomatologySichuan UniversityChengduChina State Key Laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&West China Hospital of Stomatology Sichuan UniversityChengduChina State Key Laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Department of Pediatric Dentistry West China Hospital of StomatologySichuan UniversityChengduChina

Oral diseases, such as periodontitis, salivary gland diseases, and oral cancers, significantly challenge health conditions due to their detrimental effects on patient's digestive functions, pronunciation, and esthetic demands. Delayed diagnosis and non-targeted treatment profoundly influence patients' prognosis and quality of life. The exploration of innovative approaches for early detection and precise treatment represents a promising frontier in oral medicine.

关键词： diseases diagnosis salivary

Benefit-Risk Assessment of Chinese Medicine Injections for Primary Liver Cancer Based on Multi-criteria Decision Analysis

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2024年第6期30卷 559-564页

作者： zhang Rong-rong SHAO Ming-yi FU Yu ZHAO Rui-xia WANG jing-wen FANG Yu-xuan The First Clinical Medical College of Henan University of Traditional Chinese Medicine Zhengzhou450046China Personal Department the First Affiliated Hospital of Henan University of Chinese MedicineZhengzhou450000China Scientific Research Department the First Affiliated Hospital of Henan University of Chinese MedicineZhengzhou450000China Digestive Department the First Affiliated Hospital of Henan University of Chinese MedicineZhengzhou450000China

ObjectiveTo evaluate the benefit-risk of 3 commonly used Chinese medicine injections, Aidi Injection (ADI), Cinobufagin Injection (CINI) and Compound Kushen Injection (CKI), in the treatment of primary liver cancer (PLC), so as to provide a reference for clinical *** controlled trials (RCTs) of ADI, CINI and CKI in the treatment of PLC published in the databases of China National Knowledge Infrastructure, Wanfang, China Science and Technology Journal Database, SinoMed, PubMed, Cochrane Library, and Web of Science were retrieved from January 2020 to October 2022. The data of benefit and risk indicators were combined to obtain the effect value. The multi-criteria decision analysis (MCDA) model was applied to build the decision tree. The benefit value, risk value and benefit risk value of the 3 injections in PLC treatment were calculated. Monte Carlo simulation was carried out to calculate the 95% confidence interval and probability of differences among the 3 injections, so as to optimize the evaluation *** total of 71 RCTs were included. The benefit values of ADI, CINI and CKI combined with transcatheter arterial chemoembolization (TACE) were 42, 38 and 36, respectively. The risk values were 42, 25 and 37, respectively. The benefit risk values were 42, 31 and 37, respectively. The benefit risk differences of ADI vs. CINI, ADI vs. CKI, and CKI vs. CINI were 11 (−0.86, 17.75), 5 (−5.01, 11.09), and 6 (−1.87, 12.63), respectively. The probability that ADI superior to CINI, ADI superior to CKI, and CKI superior to CINI was 96.26%, 77.27%, and 92.62%, *** on the results of MCDA model, CINI combined with TACE has the greatest risk in the treatment of the PLC. Considering the efficacy and safety, the possible priority of the 3 Chinese medicine injections combined with TACE in the treatment of PLC is ADI, CKI and CINI.

关键词： multi-criteria decision analysis benefit-risk assessment Chinese medicine injections primary livercancer

Analog spatiotemporal feature extraction for cognitive radio-frequency sensing with integrated photonics

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2024年第3期13卷 478-487页

作者： Shaofu Xu Binshuo Liu Sicheng yi jing Wang Weiwen Zou State Key Laboratory of Advanced Optical Communication Systems and Networks Intelligent Microwave Lightwave Integration Innovation Center(imLic)Department of Electronic EngineeringShanghai Jiao Tong UniversityShanghaiChina

Analog feature extraction(AFE)is an appealing strategy for low-latency and efficient cognitive sensing systems since key features are much sparser than the Nyquist-sampled ***,applying AFE to broadband radio-frequency(RF)scenarios is challenging due to the bandwidth and programmability bottlenecks of analog electronic ***,we introduce a photonics-based scheme that extracts spatiotemporal features from broadband RF signals in the analog *** feature extractor structure inspired by convolutional neural networks is implemented on integrated photonic circuits to process RF signals from multiple antennas,extracting valid features from both temporal and spatial *** of the tunability of the photonic devices,the photonic spatiotemporal feature extractor is trainable,which enhances the validity of the extracted ***,a digital-analog-hybrid transfer learning method is proposed for the effective and low-cost training of the photonic feature *** validate our scheme,we demonstrate a radar target recognition task with a 4-GHz instantaneous *** results indicate that the photonic analog feature extractor tackles broadband RF signals and reduces the sampling rate of analog-to-digital converters to 1/4 of the Nyquist sampling while maintaining a high target recognition accuracy of 97.5%.Our scheme offers a promising path for exploiting the AFE strategy in the realm of cognitive RF sensing,with the potential to contribute to the efficient signal processing involved in applications such as autonomous driving,robotics,and smart factories.

关键词： scheme driving smart

The VAMP-associated protein VAP27-1 plays a crucial role in plant resistance to ER stress by modulating ER–PM contact architecture in Arabidopsis

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

Plant Communications 2024年第7期5卷 261-279页

作者： yi Man Yue zhang Linghui Chen Junhui Zhou Yufen Bu Xi zhang Xiaojuan Li Yun Li Yanping jing Jinxing Lin National Engineering Research Center of Tree Breeding and Ecological Restoration College of Biological Sciences and TechnologyBeijing Forestry UniversityBeijing 100083China Key Laboratory of Genetics and Breeding in Fore These authors contributed equally to this article

The endoplasmic reticulum(ER)and the plasma membrane(PM)form ER–PM contact sites(EPCSs)that allow the ER and PM to exchange materials and ***-induced disruption of protein folding triggers ER stress,and the cell initiates the unfolded protein response(UPR)to resist the ***,whether EPCSs play a role in ER stress in plants remains ***-ASSOCIATED MEMBRANE PROTEIN(VAMP)-ASSOCIATED PROTEIN 27-1(VAP27-1)functions in EPCS tethering and is encoded by a family of 10 genes(VAP27-1–10)in Arabidopsis ***,we used CRISPR-Cas9-mediated genome editing to obtain a homozygous vap27-1 vap27-3 vap27-4(vap27-1/3/4)triple mutant lacking three of the key VAP27 family members in *** vap27-1/3/4 mutant exhibits defects in ER–PM connectivity and EPCS architecture,as well as excessive UPR *** further showed that relocation of VAP27-1 to the PM mediates specific VAP27-1-related EPCS remodeling and expansion under ER ***,the spatiotemporal dynamics of VAP27-1 at the PM increase ER–PM connectivity and enhance Arabidopsis resistance to ER *** addition,we revealed an important role for intracellular calcium homeostasis in the regulation of UPR *** together,these results broaden our understanding of the molecular and cellular mechanisms of ER stress and UPR signaling in plants,providing additional clues for improving plant broad-spectrum resistance to different stresses.

关键词： Arabidopsis VAP27-1 ER–PM contact sites ER stress unfolded protein response

Influence of the Acoustic Liner in Large Eddy Simulation of Longitudinal Thermoacoustic Instability in a Model Annular Combustor

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 Thermal Science 2024年第2期33卷 710-724页

作者： MENG Sheng zhang Man GAO yi AECC Commercial Aircraft Engine Co. Ltd.Shanghai200241China School of Aeronautics and Astronautics Shanghai Jiao Tong UniversityShanghai200240China

Although extensive efforts have been made to dampen the thermoacoustic instability,successfully controlling the pressure oscillations in modern gas turbines or aeroengines remains *** influence of the acoustic liner on the longitudinal thermoacoustic mode in a model annular combustor is investigated by Large Eddy Simulation(LES) in this *** result of the self-excited longitudinal thermoacoustic instability without the liner agrees well with the frequency and acoustic analysis of the pressure mode based on experimental *** different bias flow velocities of the liner located downstream of the combustor are then *** results reveal that the existence of the liner influences not only the acoustic field but also the flow *** the bias velocity is large,it leads to intense turbulence-induced fluctuations,and the pressure oscillation is modulated *** shows that the weak coupling between flow and pressure oscillations plays a significant role in the onset of the intermittency of a thermoacoustic *** on the dynamic analysis of the thermoacoustic system with the acoustic liner,this intermittency is caused by the influence of the flow field on the flame-acoustic ***,a low-order modeling method based on Van der Pol(VdP) oscillator with additive stochastic forcing is conducted to reproduce the evolving dynamics of the thermoacoustic *** the numerical cases demonstrated in this work are relatively simpler than those in a practical combustion system,the results are helpful for us to understand the effect of the acoustic liner and show the attractive potential to apply this device to suppress thermoacoustic instability.

关键词： thermoacoustic instability acoustic liner Large Eddy Simulation low-order modeling