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32nd IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, CVPRW 2019

作者： Yang, Miao Du, Yixiang Huang, Yue Liu, Hantao Wei, Zhiqiang Hu, Jintong Hu, Ke Sheng, Zhibin School of Electronic Engineering HuaiHai Institute of Technology China Marine Equipment and Technology Institute Jiangsu University of Science and Technology China Qingdao National Laboratory of Marine Science and Technology China Key Laboratory of Underwater Acoustic Communication and Marine Information Technology Ministry of Education China School of Computer Science and Informatics Cardiff University United Kingdom Ocean University of China School of Information Engineering Mining and Technology University of China School of Information and Control Engineering

ISBN: (纸本)9781728125060

Underwater images contain an interactive mixture of distortions due to the physicochemical property of water and the instability of imaging systems, which differ from those in natural images. We cannot obtain the pristine underwater image as the reference applied in the traditional benchmark databases, and the groups of gradual distortions either. In this paper, a novel preselection based preference label evaluation method is proposed to construct a combined subjective test procedure for an extended preference judgment dataset of underwater images. To the best of our knowledge, this is the first subjective evaluation procedure for underwater images, and also a solution for an expanding visual preference benchmark database. We demonstrate the excellent correlation of the proposed subjective evaluation with the traditional image quality assessment. It is also proven that the proposed subjective evaluation procedure could reflect the slight change of image quality and the authentic quality of a picture more accurately better than the traditional methods. © 2019 IEEE Computer Society. All rights reserved.

关键词： Database systems

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Corrigendum to "Physiological energetics of selectively bred oysters (Crassostrea hongkongensis) under marine heatwaves" [Mar. Environ. Res. 204 (2025) 106871]

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marine environmental research 2025年 204卷 106903页

作者： Xiaoyan Jiang Xingzhi Zhang Junliang Guan Pingping He Pingyuan Wei Li Zhang Jinxia Peng Liqiang Zhao China (Guangxi)-ASEAN Key Laboratory of Comprehensive Exploitation and Utilization of Aquatic Germplasm Resources Ministry of Agriculture and Rural Affairs Guangxi Academy of Fishery Sciences Nanning China Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture Fishery College Guangdong Ocean University Zhanjiang China. Beibu Gulf Marine Ecological Environment Field Observation and Research Station of Guangxi Marine Environmental Monitoring Centre of Guangxi Beihai China. Beibu Gulf Marine Ecological Environment Field Observation and Research Station of Guangxi Marine Environmental Monitoring Centre of Guangxi Beihai China. Electronic address: pengjinxia@***. Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture Fishery College Guangdong Ocean University Zhanjiang China Oyster Industrial Technology Institute of Zhanjiang Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) Zhanjiang China. Electronic address: lzhao@***.

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Quality control of SCC during precast of steel-shell concrete immersed tube used in Shenzhong link

Quality control of SCC during precast of steel-shell concret...

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fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures

作者： Wang, Shengnian Lv, Huang Xiong, Jianbo Fan, Zhihong Zeng, Junjie CCCC Fourth Harbor Engineering Institute Co. Ltd. Guangzhou China Key Laboratory of Harbor and Marine Structure Durability Technology Ministry of Communications PRC Guangzhou China CCCC Fourth Harbor Engineering Co. Ltd Guangzhou China

ISBN: (纸本)9782940643004

For the precast of steel-shell immersed tube, key technologies for quality control of fresh and hardened SCC during preparation in lab and placing on site are discussed in this study. Special SCC was prepared with the application of high volume fly ash and low volume slag. The influence of concrete air content on workability was investigated in lab. Air content, slump flow and V-funnel flowing time of fresh concrete were tested before and after pumping on site. Two full-scale model experiments were carried out under different environmental temperature to verify the construction performance. The results show that air content can influence the workability and strength of SCC. Long distance pumping may increase the air content of SCC and decrease the filling ability. Proper initial properties of SCC before pumping should be designed to obtain satisfied workability after pumping. With the application of the prepared SCC, the maximum temperature rise of concrete in the tube can be controlled under 43℃ when the environmental temperature is under 20℃. The quality of the tube precast, such as connection between concrete and steel shell, strength and homogeneity of hardened concrete, can be guaranteed based on above research. © Federation Internationale du Beton (fib) - International Federation for Structural Concrete, 2019.

关键词： Quality control

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Fungal diversity notes 1611-1716: taxonomic and phylogenetic contributions on fungal genera and species emphasis in south China

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Fungal Diversity 2023年第5期122卷 161-403页

作者： Indunil C.Senanayake Walter Rossi Marco Leonardi Alex Weir Mark McHugh Kunhiraman C.Rajeshkumar Rajnish K.Verma Samantha C.Karunarathna Saowaluck Tibpromma Nikhil Ashtekar Sreejith K.Ashtamoorthy Sanjay Raveendran Gurmeet Kour Aishwarya Singh Saúl De la Peña-Lastra Antonio Mateos Miroslav Kolařík Vladimír Antonín HanaŠevčíková Fernando Esteve-Raventós Ellen Larsson Fermín Pancorbo Gabriel Moreno Alberto Altés Yolanda Turégano Tian-Ye Du Li Lu Qi-Rui Li Ji-Chuan Kang Sugantha Gunaseelan Kezhocuyi Kezo Malarvizhi Kaliyaperumal Jizhen Fu Milan C.Samarakoon Yusufjon Gafforov Shakhnoza Teshaboeva Pradeep C.Kunjan Arya Chamaparambath Adam Flakus Javier Etayo Pamela Rodriguez-Flakus Mikhail P.Zhurbenko Nimali Ide Silva Danushka S.Tennakoon KPDeepna Latha Patinjareveettil Manimohan KNAnil Raj Mark S.Calabon Abdollah Ahmadpour Zeinab Heidarian Zahra Alavi Fatemeh Alavi Youbert Ghosta Razmig Azizi Mei Luo Min-Ping Zhao Nuwan D.Kularathnage Li Hua Yun-Hui Yang Chun-Fang Liao Hai-Jun Zhao Anis S.Lestari Subashini C.Jayasiri Feng-Ming Yu Lei Lei Jian-Wei Liu Omid Karimi Song-Ming Tang Ya-Ru Sun Yong Wang Ming Zeng Zin H.Htet Benedetto T.Linaldeddu Artur Alves Alan J.L.Phillips Carlo Bregant Lucio Montecchio AndréDe Kesel Vincent P.Hustad Andrew N.Miller Anna G.Fedosova Viktor Kučera Mubashar Raza Muzammil Hussain Yan-Peng Chen Vinodhini Thiyagaraja Deecksha Gomdola Achala R.Rathnayaka Asha J.Dissanayake Nakarin Suwannarach Sinang Hongsanan Sajeewa S.N.Maharachchikumbura Lakmali S.Dissanayake Nalin N.Wijayawardene Rungtiwa Phookamsak Saisamorn Lumyong E.B.Gareth Jones Neelamanie Yapa Dhanushka N.Wanasinghe Ning Xie Mingkwan Doilom Ishara S.Manawasinghe Jian-Kui(Jack)Liu Qi Zhao Biao Xu Kevin D.Hyde Jiage Song Innovative Institute for Plant Health/Key Laboratory of Green Prevention and Control On Fruits and Vegetables in South China Ministry of Agriculture and Rural AffairsZhongkai University of Agriculture and EngineeringHaizhu DistrictGuangzhou 510225GuangdongChina Center of Excellence in Fungal Research Mae Fah Luang UniversityChiang Rai 57100Thailand Guangdong Provincial Key Laboratory for Plant Epigenetics College of Life Science and OceanographyShenzhen University3688Nanhai AvenueNanshanShenzhen 518055GuangdongChina Sect.Environmental Sciences Department MeSVAUniversity of L’AquilaVia Vetoio67100 CoppitoAQItaly Department of Environmental Biology SUNY-ESF241 Illick Hall1 Forestry DriveSyracuseNY 13210USA National Fungal Culture Collection of India MACS Agharkar Research InstitutePuneMaharashtra 411004India Department of Plant Pathology Punjab Agricultural UniversityLudhianaPunjab 141004India Center for Yunnan Plateau Biological Resources Protection and Utilization College of Biological Resource and Food EngineeringQujing Normal UniversityQujing 655011YunnanChina Department of Forest Ecology Kerala Forest Research InstitutePeechiThrissurKerala 680653India Department of Botany The American CollegeTallakkulamMaduraiTamil Nadu 625002India Department of Zoology Savitribai Phule Pune UniversityGaneshkhind RdGaneshkhindPuneMaharashtra 411007India University of Santiago de Compostela 15782 Santiago de CompostelaSpain Sociedad Micológica Extremeña C/Sagitario 1410001 CáceresSpain Institute of Microbiology of the Czech Academy of Sciences Vídeňská108314220 Prague 4Czech Republic Department of Botany Moravian MuseumZelnýtrh 665937 BrnoCzech Republic Department of Life Sciences(Botany Unit) University of Alcalá28805 Alcaláde HenaresMadridSpain Biological and Enviromental Sciences University of Gothemburgand Gothemburg Global Biodiversity CentreBox 46140530 GöteborgSweden Madrid Mycological Society Real Jardín BotánicoC/Claudio Moyano 128014 MadridSpain State Ke

This article is the 15th contribution in the Fungal Diversity Notes series,wherein 115 taxa from three phyla,nine classes,28 orders,48 families,and 64 genera are *** taxa described and illustrated in the present study include a new family,five new genera,61 new species,five new combinations,one synonym,one new variety and 31 records on new hosts or new geographical *** *** introduced and accommodated in *** new genera introduced in this study are Ageratinicola,Kevinia,Pseudomultiseptospora(Parabambusicolaceae),Marasmiellomycena,and Vizzinia(Porotheleaceae).Newly described species are Abrothallus altoandinus,Ageratinicola kunmingensis,Allocryptovalsa aceris,Allophoma yuccae,Apiospora cannae,***,***,Boeremia wisteriae,Calycina papaeana,Clypeo-coccum lichenostigmoides,Coniochaeta riskali-shoyakubovii,Cryphonectria kunmingensis,Diaporthe angustiapiculata,***,***,Diatrypella guangdongense,Dothiorella franceschinii,Endocalyx phoenicis,Epicoc-cum terminosporum,Fulvifomes karaiensis,***,Ganoderma ghatensis,Hysterobrevium baoshanense,Inocybe avellaneorosea,***,Jahnula oblonga,Kevinia lignicola,Kirschsteiniothelia guangdongensis,Laboulbenia caprina,***,***,***,***,***,***,***,***,Laccaria rubriporus,Lasiodiplodia morindae,Lyophyllum agnijum,Marasmiellomycena pseudoomphaliiformis,Melomastia beihaiensis,Nemania guangdongensis,Nigrograna thailandica,Nigrospora ficuum,Oxydothis chinensis,***,Petriella thailandica,Phaeoacremonium chinensis,Phialocephala chinensis,Phytophthora debattistii,Polyplosphaeria nigrospora,Pronectria loweniae,Seriascoma acutispora,Setoseptoria bambusae,Stictis anomianthi,Tarzetta tibetensis,Tarzetta urceolata,Tetraploa obpyriformis,Trichoglossum beninense,and Tricoderma *** provide an emendation for Urnula ailaoshanensis Agaricus duplocingulatoides *** i

关键词： Agaricomycetes Ascomycota Basidiomycota Dothideomycetes Eurotiomycetes Fungal diversity Geoglossomycetes Geographical distribution Host records Incertae sedis Laboulbeniomycetes Lecanoromycetes Leotiomycetes Novel taxa New combination Oomycota Peronosporea Pezizomycetes Phylogeny Sordariomycetes South Chinese fungi Taxonomy

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LSTM-based Frequency Hopping Sequence Prediction

LSTM-based Frequency Hopping Sequence Prediction

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International Conference on Wireless communications and Signal Processing (WCSP)

作者： Gao Li Jianliang Xu Weiguo Shen Wei Wang Zitong Liu Guoru Ding Key Laboratory of Dynamic Cognitive System of Electromagnetic Spectrum Space Ministry of Industry and Information Technology Nanjing University of Aeronautics and Astronautics Nanjing China Science and Technology on Communication Information Security Control Laboratory No.36 Research Institute of CETC Jiaxing China College of Communications Engineering Army Engineering University China

ISBN: (数字)9781728172361

ISBN: (纸本)9781728172378

The continuous change of communication frequency brings difficulties to the reconnaissance and prediction of non-cooperative communication. The core of this communication process is the frequency-hopping (FH) sequence with pseudo-random characteristics, which controls carrier frequency hopping. However, FH sequence is always generated by a certain model and is a kind of time sequence with certain regularity. Long Short-Term Memory (LSTM) neural network in deep learning has been proved to have strong ability to solve time series problems. Therefore, in this paper, we establish LSTM model to implement FH sequence prediction. The simulation results show that LSTM-based scheme can effectively predict frequency point by point based on historical HF frequency data. Further, we achieve frequency interval prediction based on frequency point prediction.

关键词： Predictive models Time-frequency analysis Frequency control Training Time series analysis Logic gates Spread spectrum communication

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Molecular characteristics and formation pathways of organosulfates in atmospheric fine particles: A case study in steel industrial city during winter heating period

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Journal of Hazardous Materials 2025年 495卷

作者： Cuiping Ning Yutong Tang Hao Sun Dan Wang Shuai Sun Yuan Gao School of Chemical Engineering University of Science and Technology Liaoning Anshan 114051 China National Marine Environmental Monitoring Center Dalian 116023 China Key Laboratory of Pesticide Environmental Assessment and Pollution Control Nanjing Institute of Environmental Sciences Ministry of Ecology and Environment of the People's Republic of China Nanjing 210042 China Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China

Air pollution is a critical global issue, posing serious threats to both the environment and human health. Organosulfates play a significant role in haze formation, yet research on their molecular characteristics, pollution dynamics, and atmospheric transformation processes remains relatively limited. In this study, 25 PM 2.5 samples were collected from a steel industrial city during the winter heating period and subjected to comprehensive chemical characterization employing Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS). A total of 6348 sulfur-containing compounds were identified, encompassing CHOS 1 , CHOS 2 , CHON 1 S 1 , CHON 1 S 2 , CHON 2 S 1 , and CHON 2 S 2 . Analysis showed 42.0–95.2 % of these compounds had O/(4S+3 N)≥ 1, indicating a high prevalence of organosulfates (OSs) and nitrooxy-organosulfates (NOSs) in the samples. OSs and NOSs derived from different precursors showed the following relative proportions: long-chain alkanes (24.9 %), monoterpenes (22.0 %), sesquiterpenes (14.5 %), diterpenes (5.1 %), and naphthalenes (2.5 %). Further analysis of the FT-ICR MS dataset reveals that temperature, O 3 , metal ions, relative humidity, and NO 2 were key factors in driving the formation of OSs and NOSs. These results highlight the critical role of acid-catalyzed epoxide ring-opening reactions, esterification processes, and reactions involving sulfate radicals or liquid-phase mechanisms in the formation pathways of OSs and NOSs.

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Enhancing the immune response in the sea cucumber Apostichopus japonicus by addition of Chinese herbs Houttuynia cordata Thunb as a food supplement

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Aquaculture and Fisheries 2019年第3期4卷 114-121页

作者： Huifeng Dang Teng Zhang Fan Yi Shigen Ye Juan Liu Qiang Li Hua Li Ruijun Li Agriculture and Rural Affairs Ministry of Key Laboratory of Mariculture&Stock Enhancement in North China's Sea Dalian Key Laboratory of Marine Animal Disease Control and PreventionCollege of FisheriesDalian Ocean UniversityDalian 116023China Dalian Integrated Traditional Chinese and Western Medicine Hospital Dalian 116000China Department of Ocean Technology College of Marine and Biology EngineeringYancheng Institute of TechnologyYancheng 224051China

The Chinese herb Houttuynia cordata Thunb(abbreviated as HCT hereafter)has been widely used in human and livestock medical ***,few studies have tested the effects of HCT in aquaculture systems,particularly in *** this study,the impact of HCT was evaluated when used as a feed additive to enhance the immune response of the sea cucumber,Apostichopus *** concentrations,1.5%and 3%,of HCT powder were tested by adding them to the *** experiments had a four week duration and each week,the humoral and cellular immunity index of the intestine,tentacles,peristome,and coelomic fluid were *** results indicated that the percentage of *** coelomocytes significantly increased after supplementing feed with HCT,and reached a peak after one week of feeding with the 3%HCT *** of reactive oxygen species(ROS)indicated that HCT in feed caused a notable increase in the coelomocyte ROS concentrations over the experimental *** both the 1.5%and 3%HCT addition groups,the ROS peaked in the third week and then remained *** addition,alkaline phosphatase,acid phosphatase,superoxide dismutase,lysozyme activity of the intestine,tentacles,peristome and coelomic fluid were significantly improved during the four-week test *** conclusion,1.5%and 3%HCT added to feed boosts the immune responses of *** has potential as an immune enhancer for mariculture of sea cucumbers.

关键词： Apostichopus japonicus Houttuynia cordata Thunb Humoral immunity Cellular immunity

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Research on the influence of machine-made sand gradation and fineness modulus on the workability and rheological properties of mortar

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IOP Conference Series: Earth and Environmental Science 2021年第1期760卷

作者： Can Chen Haicheng Yang Zhihong Fan Key Laboratory of Harbor &Marine Structure Durability Technology of the Ministry of Communications CCCC Fourth Harbor Engineering Institute Co. Ltd. Guangzhou 510230China

The gradation and fineness modulus of machine-made sand are important factors affecting the performance of mortar. By studying the influence of different machine-made sand gradation and fineness modulus on the workability and rheological properties of mortar, the gradation and fineness of machine-made sand are explored. The relationship between modulus and mortar fluidity, yield stress and plastic viscosity. Research shows that with the increase of the cumulative screening rate and fineness modulus of machine-made sand with different gradations, the fluidity of the mortar increases and the workability of the mortar increases. The cumulative screening rate and fineness modulus of machine-made sand are negatively correlated with the yield stress and plastic viscosity of the mortar. The cumulative screening rate and fineness modulus of machine-made sand have a good correlation with the yield stress of the mortar, and the mechanism is 1.18-0.6mm Sand gradation is significantly negatively correlated with the yield stress of mortar, and the cumulative sieving rate and fineness modulus of machine-made sand have poor correlation with the plastic viscosity of mortar.

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Study on effect of mechanical sand on mechanical properties and fractal characteristics of mortar pore structure

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IOP Conference Series: Earth and Environmental Science 2021年第1期643卷

作者： Can Chen Haicheng Yang Fang Yu Key Laboratory of Harbor &Marine Structure Durability Technology of the Ministry of Communications CCCC Fourth Harbor Engineering Institute Co. Ltd. Guangzhou 510230 China

The influence of stone powder content, fly ash and other factors on mechanical properties, pore structure and fractal dimension of machine-made sand mortar were studied, and the relationship between fractal dimension and mechanical properties of mortar was explored. The research shows that with the increase of the content of stone powder, the mechanical properties of mortar and the fractal dimension of pore structure of different sizes increase; the porosity and average pore size of the mortar decrease, and the ternary of cement-fly ash-stone powder The micro-particle system can effectively optimize the pore structure distribution of the mortar; the fractal dimension of the mortar using ordinary river sand is significantly smaller than that of machine-made sand under the same conditions; with the increase of the fractal dimension of the pore structure, the compressive strength and flexural strength of the mortar continue to increase Large, the fractal dimension and the macroscopic mechanical properties of the mortar show a good correlation.

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Reverse time migration imaging of tunnels via the finite element method using an unstructured mesh

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Applied Geophysics 2020年第2期17卷 267-276,316页

作者： Wang Jing Liu Jiang-Ping Cheng Fei Yang Huai-Jie Huang Yi-Fan School of Civil Engineering Shijiazhuang Tiedao UniversityShijiazhuang 050043China Key Laboratory of Roads and Railway Engineering Safety Control(Shijiazhuang Tiedao University) Ministry of EducationShijiazhuang 050043China Hebei Technology and innovation center on safe and efficient mining of metal mines Shijiazhuang Tiedao UniversityShijiazhuang 050043China Hubei Subsurface Multi-scale Imaging Key Laboratory Institute of Geophysics and GeomaticsChina University of GeosciencesWuhan 430074China College of Marine Science and Technology China University of GeosciencesWuhan 430074China Beijing Research Institute of Uranium Geology Beijing 100029China

Wavefield extrapolation is critical in reverse time migration(RTM).The finite diff erence method is primarily used to achieve wavefi eld extrapolation in case of the RTM imaging of ***,complex tunnel models,including those for karsts and fault fracture zones,are constructed using regular grids with straight curves,which can cause numerical dispersion and reduce the imaging *** this study,wavefi eld extrapolation was conducted for tunnel RTM using the finite element method,wherein an unstructured mesh was considered to be the body-fi tted partition in a complex ***,a Poynting vector calculation equation suitable for the unstructured mesh considered in the fi nite element method was established to suppress the interference owing to low-frequency *** tunnel space was considered during wavefi eld extrapolation to suppress the mirror artifacts based on the fl exibility of mesh ***,the infl uence of the survey layouts(one and two sidewalls)on the tunnel imaging results was *** RTM results obtained for a simple tunnel model with an inclined interface demonstrate that the method based on unstructured meshes can effectively suppress the low-frequency noise and mirror artifacts,obtaining clear imaging ***,the two-sidewall tunnel survey layout can be used to accurately obtain the real position of the inclined interface ahead of the tunnel *** complex tunnel numerical modeling and actual data migration results denote the eff ectiveness of the fi nite element method in which an unstructured mesh is used.

关键词： Tunnel advanced prediction fi nite element method unstructured mesh Poynting vector mirror artifacts

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