检索结果-南通市图书馆

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 Integrative Plant Biology 2023年第4期65卷 879-880页

作者： Jingjing Tan Ping He de‐yu xie Journal of Integrative Plant Biology Institute of BotanyCASChina department of Plant and Microbial Biology North Carolina State UniversityRaleighNC27695USA

How plants produce the important defense hormone salicylic acid(SA)has been studied for almost 50 *** current understanding is that in land plants,SA is biosynthesized from chorismate through the isochorismate(IC)path... 详细信息

关键词： phenylalanine insight ammonia

Artemisia annua, artemisinin, and the Nobel Prize:beauty of natural products and educational significance

在线全文

学校读者我要写书评

暂无评论

Science Bulletin 2016年第1期61卷 42-44页

作者： de-yu xie department of Plant and Microbial Biology North Carolina State University

In the beautiful evening on december 10,2015(local time in Sweden),the annual Nobel Prize ceremony was hosted by the Swedish Royal Family at Stockholm’s City Hall,Stockholm,*** to all ten new Nobel Prize Laureates and thanks them for using their brightest talents to make our world better!The 2015 Nobel Prize in Physiology or Medicine was awarded to Professors Youyou Tu,William ***,and Satoshi Omura

关键词：诺贝尔奖获得者青蒿素教育意义天然产品诺贝尔生理学或医学奖斯德哥尔摩颁奖典礼天然产物

Breast and dorsal spine relapse of granulocytic sarcoma after allogeneic stem cell transplantation for acute myelomonocytic leukemia:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2022年第7期10卷 2315-2321页

作者： yuan Li yu-de xie Shao-Jie He Jia-Mei Hu Zhi-Sheng Li Shao-Hua Qu department of Breast Surgery The First Affiliated Hospital of Jinan UniversityGuangzhou 510630Guangdong ProvinceChina department of Orthopaedics The First Affiliated Hospital of Jinan UniversityGuangzhou 510630Guangdong ProvinceChina

BACKGROUND Granulocytic sarcoma(GS)is a rare malignant tumor,and relapse is even rarer in the breast and dorsal spine following allogeneic hematopoietic stem cell ***,a standard treatment regimen is not *** SUMMARY A rare case of GS of the right breast and dorsal spine after complete remission of acute myelogenous leukemia is reported here.A 55-year-old female patient presented with a palpable,growing,painless lump as well as worsening dorsal compressive *** had a history of acute myelomonocytic leukemia(AML M4)and achieved complete remission after chemotherapy following allogeneic hematopoietic stem cell *** examinations showed the breast lump and C7-T1 epidural masses suspected of *** results were compatible with GS in both the right breast and dorsal spine,which were considered extramedullary relapse of the AML treated 4 years *** A rare case of GS relapse following allogeneic hematopoietic stem cell transplantation and guidelines for treatment are discussed.

关键词： Granulocytic sarcoma Breast Dorsal spine Acute myeloid leukemia Allogeneic hematopoietic stem cell transplantation Case report

Literature overview of basic characteristics and flotation laws of flocs

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2024年第5期31卷 943-958页

作者： Wanzhong Yin yu xie Zhanglei Zhu School of Resources and Civil Engineering Northeastern UniversityShenyang 110819China College of Chemistry and Chemical Engineering Xi’an University of Science and TechnologyXi’an 710054China

Flocculation flotation is the most efficient method for recovering fine-grained minerals,and its essence lies in flotation and recovery of *** physical characteristics of flocs are mainly determined by their apparent particle size and structure(density and morphology).Substantial researches have been conducted regarding the effect of floc characteristics on particle settling and water ***,the influence of floc characteristics on flotation has not been widely *** on the floc formation and flocculation flotation,this study reviews the fundamental physical characteristics of flocs from the perspectives of floc particle size and structure,summarizing the interaction between floc particle size and ***,it thoroughly discusses the effect of floc particle size and structure on floc floatability,further revealing the influence of floc characteristics on bubble collision and adhesion and elucidating the mechanisms of interaction between flocs and ***,it is observed that floc particle size is not the only factor influencing flocculation *** the appropriate apparent particle size range,flocs with a compact structure exhibit higher efficiency in bubble collision and adhesion during flotation,thereby resulting in enhanced flotation *** study aims to provide a reference for flocculation flotation,targeting the development of more efficient and refined flocculation flotation processes in the future.

关键词： flocs basic characteristics particle size and structure flotation laws bubbles

Method for detecting Industrial defects in Intelligent Manufacturing Using deep Learning

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2024年第1期78卷 1329-1343页

作者： Bowen yu Chunli xie College of Mechanical and Electrical Engineering Northeast Forestry UniversityHarbin150040China

With the advent of Industry 4.0,marked by a surge in intelligent manufacturing,advanced sensors embedded in smart factories now enable extensive data collection on equipment *** analysis of such data is pivotal for ensuring production safety,a critical factor in monitoring the health status of manufacturing *** defect detection techniques,typically limited to specific scenarios,often require manual feature extraction,leading to inefficiencies and limited versatility in the overall *** research presents an intelligent defect detection methodology that leverages deep learning techniques to automate feature extraction and defect localization *** proposed approach encompasses a suite of components:the high-level feature learning block(HLFLB),the multi-scale feature learning block(MSFLB),and a dynamic adaptive fusion block(DAFB),working in tandem to extract meticulously and synergistically aggregate defect-related characteristics across various scales and hierarchical *** have conducted validation of the proposed method using datasets derived from gearbox and bearing *** empirical outcomes underscore the superior defect detection capability of our *** demonstrates consistently high performance across diverse datasets and possesses the accuracy required to categorize defects,taking into account their specific locations and the extent of damage,proving the method’s effectiveness and reliability in identifying defects in industrial components.

关键词： Industrial defect detection deep learning intelligent manufacturing

Highly efficient photo-thermal synergistic catalysis of CO_(2)methanation over La1-xCexNiO_(3)perovskite-catalyst

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第9期17卷 7945-7956页

作者： Ting Li Zhen-yu Zhang de-Cun Luo Bo-yu Xu Rong-Jiang Zhang Ji-Long Yao Dan Li Tao xie Institute of Industrial Catalysis School of Chemical Engineering and TechnologyXi’an Jiaotong UniversityXi’an 710049China

Solar-driven photo-thermal catalytic CO_(2)methanation reaction is a promising technology to alleviate the problems posed by greenhouse gases ***,designing advanced photo-thermal catalysts remains a research challenge for CO_(2)methanation *** this work,a series of ABO3(A=lanthanide,B=transition metal)perovskite catalysts with Ce-substituted LaNiO3(La1-xCexNiO3,x=0,0.2,0.5,0.8,1)were synthesized for CO_(2)*** La0.2Ce0.8NiO3 exhibited the highest CH4 formation rate of 258.9 mmol·g^(-1)·hcat-1,CO_(2)conversion of 55.4%and 97.2%CH4 selectivity at 300℃with the light intensity of 2.9 W·cm^(-2).Then the catalysts were thoroughly analyzed by physicochemical structure and optical properties *** partial substitution of the A-site provided more active sites for the adsorption and activation of CO_(2)/H_(2).The sources of the active sites were considered to be the oxygen vacancies(Ov)created by lattice distortions due to different species of ions(La^(3+),Ce^(4+),Ce^(3+))and exsolved Ni0 by H_(2)*** catalysts have excellent light absorption absorbance and low electron-hole(e-/h+)recombination rate,which greatly contribute to the excellent performance in photo-thermal synergistic catalysis(PTC)CO_(2)*** results of in situ irradiated electron paramagnetic resonance spectrometer(ISI-EPR)and ISI-X-ray photoelectron spectroscopy(XPS)indicated that the aggregation of unpaired electrons near the defects and Ni metal(from La and Ce ions to Ov and Ni0)accelerated adsorption and activation of CO_(2)/H_(2).At last,the catalyst properties and structure were correlated with the proposed reaction mechanism from the in situ diffuse reflection infrared Fourier transform spectrum(DRIFTS)*** in situ precipitation of the B-site enhanced the dispersion of Ni,while its enriched photoelectrons upon illumination further promote hydrogen *** H^(*)spillover accelerated the rate-determining step(RDS)of H

关键词： photo-thermal catalysis CO_(2)methanation perovskite A-site substitution in situ diffuse reflection infrared Fourier transform spectrum(DRIFTS)

A telomere-to-telomere reference genome provides genetic insight into the pentacyclic triterpenoid biosynthesis in Chaenomeles speciosa

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Horticulture Research 2023年第10期10卷 250-261页

作者： Shaofang He Duanyang Weng Yipeng Zhang Qiusheng Kong Keyue Wang Naliang Jing Fengfeng Li yuebin Ge Hui Xiong Lei Wu de-yu xie Shengqiu Feng Xiaqing yu Xuekui Wang Shaohua Shu Zhinan Mei College of Plant Science&Technology Huazhong Agricultural UniversityWuhan 430070China Wuhan Carboncode Biotechnologies Co. Ltd.Wuhan 430070China Sinopharm Zhonglian Pharmaceutical Co. Ltd.Wuhan 430070China College of Horticulture&Forestry Huazhong Agricultural UniversityWuhan 430070China School of Pharmaceutical Science South-Central Minzu UniversityWuhan 430074China department of Plant and Microbial Biology North Carolina State UniversityRaleighNC 27695USA College of Horticulture Nanjing Agricultural UniversityNanjing 210095China

Chaenomeles speciosa(2n=34),a medicinal and edible plant in the Rosaceae,is commonly used in traditional Chinese *** date,the lack of genomic sequence and genetic studies has impeded efforts to improve its medicinal ***,we report the use of an integrative approach involving PacBio HiFi(third-generation)sequencing and Hi-C scaffolding to assemble a high-quality telomere-to-telomere genome of *** genome comprised 650.4 Mb with a contig N50 of 35.5 *** these,632.3 Mb were anchored to 17 pseudo-chromosomes,in which 12,4,and 1 pseudo-chromosomes were represented by a single contig,two contigs,and four contigs,*** pseudo-chromosomes had telomere repeats at both ends,and four had telomere repeats at a single *** sequences accounted for 49.5%of the genome,while a total of 45515 protein-coding genes have been *** genome size of *** was relatively similar to that of Malus *** or contracted gene families were identified and investigated for their association with different plant metabolisms or biological *** particular,functional annotation characterized gene families that were associated with the biosynthetic pathway of oleanolic and ursolic acids,two abundant pentacyclic triterpenoids in the fruits of *** together,this telomere-to-telomere and chromosome-level genome of *** not only provides a valuable resource to enhance understanding of the biosynthesis of medicinal compounds in tissues,but also promotes understanding of the evolution of the Rosaceae.

关键词： value. insight metabolism

One more step to realistic CO_(2) reduction reactions——geometric structures evolutions at gas-solid interface

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2024年第2期43卷 849-852页

作者： Ya-Qiang xie Xin yu Ting Wang College of the Environment and Ecology Xiamen UniversityXiamen361102China

A rational design of copper(Cu)nanocatalyst is critical to the efficient carbon dioxide(CO_(2))conversion toward C1/C2 chemical ***,the lack of actual information on the vicinal Cu interfaces hinders the intrinsic activitystructure correlation *** with atomic-scale in situ characterizations(AP-STM and synchrotron-based AP-XPS),Park and co-workers study and identify the adsorbate-driven morphological evolution of Cu nanoclusters on the Cu(997)surface,providing real-space evidence for the critical role of vicinal structures on Cu *** observed surface roughening trends caused by dissociated atomic oxygen and CO adsorbates subsequently affect the result of successive catalytic reactions to produce critical intermediates,such as carbonate and formate,during the CO_(2)reduction reaction.

关键词： reaction critical rational

Investigation on the influence of vortex generator on particle resuspension

在线全文

学校读者我要写书评

暂无评论

Particuology 2024年第3期86卷 126-136页

作者： Dongchi yu Jun-Li Lin Jin-Han xie ASML 80W Tasman DrSan Jose95134CaliforniaUSA department of Mechanics and Engineering Science at College of Engineering and State Key Laboratory for Turbulence and Complex Systems Peking UniversityBeijing100081China

The vortex generator(VG)and its well-known effect in flow optimization are widely studied and employed across different engineering ***,while the same working principles of VG may be well suited for the applications on surface-cleaning technologies,such promising potential is hardly,if any,explored in the published ***,in the present study,the influence on flow-induced particle resuspension brought by a rectangular vG in a channel flow is investigated with the help of highfidelity computational fluid dynamics *** increases of particle removal forces and resuspension rates are discovered in long,strip-like regions with reduced boundary-layer thickness resulted from the vG-induced vortices,and the enhancement effect is especially significant for configurations with the VG installed at a greater angle of *** is also shown that while the resuspension enhancements on the lower and the upper surfaces of the channel exhibit distinct statistical characteristics,having a VG in the channel improves the overall particle-removing capability of the channel flow by introducing higher surface-averaged removal forces and particle resuspension *** but not least,the increase of resuspension rate is especially significant for the smaller,micron-scale particles which are otherwise hardly disturbed by a VG-less channel flow,and such resuspension-enhancement effectgenerally subsides with increasing particle size.

关键词： Particle resuspension Vortexgenerator CFD Surface cleaning