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Artificial Intelligence in Internet of Things System for Predicting Water Quality in Aquaculture Fishponds

Computer Systems Science & Engineering 2023年第9期46卷 2861-2880页

作者： po-yuan yang Yu-Cheng Liao Fu-I Chou Department of Intelligent Robotics National Pingtung UniversityPingtung900TaiwanChina Department of Electrical Engineering National Kaohsiung University of Science and TechnologyKaohsiung807TaiwanChina

Aquaculture has long been a critical economic sector in *** a key factor in aquaculture production efficiency is water quality,an effective means of monitoring the dissolved oxygen content(DOC)of aquaculture water is *** study developed an internet of things system for monitoring DOC by collecting essential data related to water *** intelligence technology was used to construct a water quality prediction model for use in a complete system for managing water *** aquaculture water quality depends on a continuous interaction among multiple factors,and the current state is correlated with the previous state,a model with time series is ***,this study used recurrent neural networks(RNNs)with sequential *** used RNNs such as long short-term memory model and gated recurrent unit(GRU)model have a memory function that appropriately retains previous results for use in processing current *** construct a suitable RNN model,this study used Taguchi method to optimize hyperparameters(including hidden layer neuron count,iteration count,batch size,learning rate,and dropout ratio).Additionally,optimization performance was also compared between 5-layer and 7-layer network *** experimental results revealed that the 7-layer GRU was more suitable for the application considered in this *** values obtained in tests of prediction performance were mean absolute percentage error of 3.7134%,root mean square error of 0.0638,and R-value of ***,thewater qualitymanagement system developed in this study can quickly provide practitioners with highly accurate data,which is essential for a timely response to water quality *** study was performed in collaboration with the Taiwan Industrial Technology Research Institute and a local fishery *** application of the system by the fishery company confirmed that the monitoring system is effective in improving the surviv

关键词： Fishery gated recurrent unit hyperparameter optimization long short-term memory Taguchi method water quality prediction

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Hybrid Multi-Object Optimization Method for Tapping Center Machines

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Intelligent Automation & Soft Computing 2023年第4期36卷 23-38页

作者： Ping-Yueh Chang Fu-I Chou po-yuan yang Shao-Hsien Chen Department of Electrical Engineering National Kaohsiung University of Science and TechnologyKaohsiung807China Taiwan Department of Intelligent Robotics National Pingtung UniversityPingtung900China Taiwan Graduate Institute of Precision Manufacturing National Chin-Yi University of TechnologyTaichung411China Taiwan

This paper proposes a hybrid multi-object optimization method integrating a uniform design,an adaptive network-based fuzzy inference system(ANFIS),and a multi-objective particle swarm optimizer(MOPSO)to optimize the rigid tapping parameters and minimize the synchronization errors and cycle times of computer numerical control(CNC)***,rigid tapping parameters and uniform(including 41-level and 19-level)layouts were adopted to collect representative data for ***,ANFIS was used to build the model for the collected 41-level and 19-level uniform layout experiment *** tapping center machines,the synchronization errors and cycle times are important consid-erations,so these two objects were used to build the ANFIS ***,a MOPSO algorithm was used to search for the optimal parameter combinations for the two ANFIS models *** experimental results showed that the proposed method obtains suitable parameter values and optimal parameter combinations compared with the nonsystematic ***,the optimal parameter combination was used to optimize existing CNC tools during the commissioning *** the proportional and integral gains of the spindle could improve resistance to deformation during rigid *** posi-tion gain and prefeedback coefﬁcient can reduce the synchronization errors signiﬁcantly,and the acceleration and deceleration times of the spindle affect both the machining time and synchronization *** proposed method can quickly and accurately minimize synchronization errors from 107 to 19.5 pulses as well as the processing time from 3,600 to 3,248 ms;it can also shorten the machining time signiﬁcantly and reduce simultaneous errors to improve tapping yield,there-by helping factories achieve carbon reduction.

关键词： Tapping center machine uniform design adaptive network-based fuzzy inference system(ANFIS) multi-objective particle swarm optimizer

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Nonlinear excitation controller design for power systems:an I&I approach

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控制理论与应用（英文版） 2012年第4期10卷 554-558页

作者： Rongxiang yuan yang RUAN po HU School of Electrical Engineering Wuhan University

The Immersion and Invariance （I＆I） methodology provides a novel approach for nonlinear system control, which is distinct from the traditional feedback linearization and backstepping method. In this paper, a new excitation controller is designed for single machine infinite bus system （SMIBS） based on the I＆I approach. Firstly the dynamic model of SMIBS is homeomorphously transformed to a specific form for which a stable lower-order target system is selected. Then the I＆I excitation controller is designed by immersing the transformed system into the target system. Simulation results from PSCAD/EMTDC demonstrate that the proposed controller guarantees transient stability of the system after large disturbances.

关键词： power systems Excitation control Nonlinear control Immersion and invariance

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Experimental and theoretical analysis on the procedure for estimating geo-stresses by the Kaiser effect

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International Journal of Minerals,Metallurgy and Materials 2010年第5期17卷 514-518页

作者： yuan-hui Li Yu-jiang yang Jian-po Liu Xing-dong Zhao College of Resources and Civil Engineering Northeastern University Shenyang 110004 China

Acoustic emission tests of the core specimens retrieved from boreholes at the depth over 1000 m in Hongtoushan Copper Mine were carried out under uniaxial compressive loading, and the numerical test was also done by using the rock failure process analysis （RFPA2D） code, based on the procedure for estimating geo-stresses by the Kaiser effect under uniaxial compression. According to the statistical damage mechanics theory, the Kaiser effect mechanism was analyzed. Based on these analyses, it is indicted that the traditional method of estimating geo-stresses by the Kaiser effect is not appropriate, and the result is usually smaller than the real one. Furthermore, the greater confining compression in the rock mass may result in a larger difference between the Kaiser effect stresses acquired from uniaxial loading in laboratory and the real in-situ stresses.

关键词： rock stresses Kaiser effect cyclic loading acoustic emission

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Study on products and reaction paths for synthesis of 3,4-dihydro-2H-3-phenyl-1,3-benzoxazine from phenol,aniline and formaldehyde

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Chinese Chemical Letters 2015年第3期26卷 348-352页

作者： Cheng-Xi Zhang Yu-yuan Deng Yi-yang Zhang po yang Yi Gu State Key Laboratory of polymer Materials Engineering College of Polymer Science and EngineeringSichuan University

To study the synthesis of 3,4-dihydro-2H-3-phenyl-1,3-benzoxazine（benzoxazine）,the reaction paths of phenol,aniline and formaldehyde were investigated by analyzing the synthesis crude *** the aid of high-performance liquid chromatography（HPLC）,chromatographic column and preparative HPLC,seven compounds originated from the crude products were obtained and their chemical structures were *** reaction paths are proposed based on these *** show that Nhydroxymethyl aniline（HMA） derived from the reaction of formaldehyde and aniline is probably the key intermediate during the *** can react with itself or other reactants to form other intermediates,such as 1,3,5-triphenyl-1,3,5-triazinane and 2-（（phenylamino）methyl）phenol,and further form benzoxazine and byproducts.

关键词： aniline phenol formaldehyde itself crude originated react monomer probably claimed

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Late Tremadocian(Early Ordovician) reefs on the yangtze Platform, South China, and their geobiological implications: a synthesis

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Journal of Palaeogeography 2021年第2期10卷 182-196页

作者： Jian-po Wang Qi-Jian Li Stephen Kershaw yuan-yuan Zhang Shen-yang Yu Yue Li Wuhan Centre of Geological Survey China Geological SurveyWuhan 430205Hubei ProvinceChina Hubei Key Laboratory of Paleontology and Geological Environment Evolution Wuhan 430205Hubei ProvinceChina State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of SciencesNanjing 210008Jiangsu ProvinceChina. Center for Excellence in Life and Paleoenvironment Chinese Academy of SciencesNanjing 210008Jiangsu ProvinceChina Department of Life Sciences Halsbury BuildingBrunei UniversityKingston LaneUxbridge UB83PHUK Qufu Normal University Shandong ProvinceRizhao 276826China

This study provides an overview and discussion of controls on the distribution of organic reefs during the Early Ordovican Period, in the yangtze Platform, a region of epicontinental sedimentary rocks in South China. The yangtze Platform was located in low latitudes during the Early Ordovician and recorded rich and diverse reefs through that time. During the late Tremadocian Epoch, dolomitic and stratiform stromatolites were common in supratidal to intertidal zones of the western yangtze Platform, while columnar stromatolites formed in deeper waters of the eastern yangtze Platform. Skeletal-dominated reefs occurred in upper subtidal settings of the central yangtze Platform. A transition from microbial-dominated to metazoan-dominated reefs with shallowing-upward cycles was evident, indicating that the composition of the main reef-builders was driven mainly by water *** metazoan competition during the Great Ordovician Biodiversification Event reduced the abundance of microbial reefs. Sufficient nutrient supply is interpreted to have promoted development of skeletal-dominated reefs locally in shallow settings in the central yangtze Platform, especially represented by the expansion of abundant solitary fossils of lithistid sponges and Calathium. High salinity environmental settings facilitated the bloom of stromatolites in near-shore locations. Low oxygen content in deep subtidal settings may have led to the absence of skeletal reefs in these habitats, so the mass occurrences of stromatolites was located in the shallower-water central and eastern platform. No keratose sponge-bearing stromatolite can be confirmed across the platform during this interval.

关键词： Reef succession Spatial distribution Late Tremadocian Early Ordovician yangtze Platform South China Block

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Gorham-Stout syndrome in China's Mainland:a case series of 67 patients and review of the literature

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第8期14卷 729-735页

作者： po HU Xiang-gui yuan Xin-yang HU Fa-rong SHEN Jian-an WANG Cardiovascular Key Lab of Zhejiang Province Department of Cardiology the Second Affiliated Hospital School of Medicine Zhejiang University Department of Cardiology Zhejiang Hospital Department of Internal Medicine Hangzhou Binjiang Hospital the Second Affiliated Hospital (Binjiang Branch) School of Medicine Zhejiang University

Objective:Gorham-Stout syndrome (GSS) is a rare disorder of uncertain etiology and unpredictable prognosis. This study aims to present a comprehensive understanding of this rare entity. Methods:A literature search in PubMed and three Chinese databases was performed to screen histologically proven GSS cases among Chinese residents in the mainland. We analyzed the patients' clinical characteristics, the value of different treatment modalities and their influence on the clinical outcome. Results:Sixty-seven cases were finally enrolled. There were 43 men (64.2%) and 24 women (35.8%). The mean age at diagnosis was 28 years (1.5-71 years). The most common clinical symptoms included pain (n=40, 59.7%), functional impairment (n=13, 19.4%), and swelling (n=12, 17.9%). The radiographic presentation of 37 cases (55.2%) was disappearance of a portion of the bone. The others presented as radiolucent foci in the intramedullary or subcortical regions. A total of 42 cases provided data on therapy, these included surgery (n=27, 40.3%), radiation therapy (n=6, 9.0%), surgery combined with radiation therapy (n=2, 3.0%), and medicine therapy (n=7, 10.4%). For 30 of these 42 cases, follow-up data were available:21 cases had the disorder locally controlled and 9 had a symptom progression. Fortunately, the disease is not fatal in the majority of cases. Conclusions:GSS has no specific symptoms and it should be taken into consideration when an unclear massive osteolysis occurs. The efficacies of different treatment modalities are still unpredictable and further research is required to assess the values of different treatments.

关键词： Gorham-Stout syndrome (GSS) Massive osteolysis Chinese

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Autophagy in hepatitis C virus-host interactions:potential roles and therapeutic targets for liver-associated diseases

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World Journal of Gastroenterology 2014年第19期20卷 5773-5793页

作者： po-yuan Ke Steve S-L Chen Institute of Biomedical Sciences Academia Sinica Department of Biochemistry and Molecular Biology Graduate Institute of Biomedical Sciencesand Molecular Medicine Research CenterCollege of MedicineChang Gung University Liver Research Center Chang-Gung Memorial Hospital PhD Program in Translational Medicine Kaohsiung Medical UniversityKaohsiung 80708 and Academia Sinica

Autophagy is a lysosome-associated,degradative process that catabolizes cytosolic components to recycle nutrients for further use and maintain cell *** C virus(HCV)is a major cause of chronic hepatitis,which often leads to end-stage liverassociated diseases and is a significant burden on worldwide public *** lines of evidence indicate that autophagy plays an important role in promoting the HCV life cycle in host ***,the diverse impacts of autophagy on a variety of signaling pathways in HCV-infected cells suggest that the autophagic process is required for balancing HCVhost cell interactions and involved in the pathogenesis of HCV-related liver ***,the detailed molecular mechanism underlying how HCV activates autophagy to benefit viral growth is still ***,how the autophagic response contributes to disease progression in HCV-infected cells remains largely ***,in this review,we overview the interplay between autophagy and the HCV life cycle and propose possible mechanisms by which autophagy may promote the pathogenesis of HCVassociated chronic liver ***,we outline the related studies on how autophagy interplays with HCV replication and discuss the possible implications of autophagy and viral replication in the progression of HCV-induced liver diseases,e.g.,steatosis and hepatocellular ***,we explore the potential therapeutics that target autophagy to cure HCV infection and its related liver diseases.

关键词： Autophagy Hepatitis C virus Steatosis Cirrhosis Hepatocellular carcinoma

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Earnings Expectation and Graduate Employment:Evidence from Recent Chinese College Graduates

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Frontiers of Education in China 2011年第4期6卷 549-570页

作者： yang po Graduate School of Education Peking UniversityBeijing 100871China

Chinese college graduates have faced increasing labor market com-petition since the expansion of tertiary *** rigid market demand,graduates with realistic earnings expectations may experience a more efficient job *** the 2008 MYCOS College Graduate Employment Survey,this study finds that a 1000 yuan reduction in a graduate’s reservation wage can significantly increase the probability of finding a job by 66%and increase the likelihood of being employed six months after graduation by 92%.In addition,the gap between the reservation wage and the market wage has a positive *** slightly adjusting earnings expectations,college graduates can significantly improve job search *** wages should be seen as reference points when adjusting income expectations.

关键词： reservation wage graduate employment earnings expectation

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Distinguish models mimicking the SM Higgs

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Frontiers of physics 2013年第3期8卷 285-293页

作者： Jung Chang Kingman Cheung po-Yan Tseng Tzu-Chiang yuan Department of Physics Tsing Hua University Hsinchu 300 Taiwan China Division of Quantum Phases and Devices School of Physics Konkuk University Seoul 143-701 Republic of Korea Institute of Physics Academia Sinica Nangang Taipei 11529 Taiwan China

The new particle around 125 GeV observed at the LHC is almost consistent with the standard model Higgs boson, except that the diphoton decay mode may be excessive. We summarize a number of possibilities. We propose to use the vector-boson fusion to test the underlying model for electroweak symmetry breaking. Using the well known dijet-tagging technique to single out the vector-boson fusion mechanism, we investigate potential of vector-boson fusion to discriminate a number of models suggested to give an enhanced inclusive diphoton production rate.

关键词： Higgs boson vector-boson fusion diphoton electroweak svmmetrv breaking

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