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An Adaptive Single Neural Control for Variable Step-Size P&O MPPT of Marine Current Turbine System

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China Ocean Engineering 2021年第5期35卷 750-758页

作者： LI Ming-zhu WANG Tian-zhen ZHOU fu-na SHI Ming Logistics Engineering College Shanghai Maritime UniversityShanghai 201306China Shanghai Investigation Design and Research Institute Co.LtdShanghai 200434China

Marine current energy has been increasingly used because of its predictable higher power *** to the external disturbances of various flow velocity and the high nonlinear effects on the marine current turbine(MCT)system,the nonlinear controllers which rely on precise mathematical models show poor performance under a high level of parameters’*** paper proposes an adaptive single neural control(ASNC)strategy for variable step-size perturb and observe(P&O)maximum power point tracking(MPPT)***,to automatically update the neuron weights of SNC for the nonlinear systems,an adaptive mechanism is proposed to adaptively adjust the weighting and learning ***,aiming to generate the exact reference speed for ASNC to extract the maximum power,a variable step-size law based on speed increment is designed to strike a balance between tracking speed and accuracy of P&O *** robust stability of the MCT control system is guaranteed by the Lyapunov *** simulation results show that this strategy has favorable adaptive performance under variable velocity conditions,and the MCT system operates at maximum power point steadily.

关键词： marine current turbine system perturb and observe single neural control adaptive mechanism maximum power point tracking

Peroxisome proliferator-activated receptor α,a potential therapeutic target for alcoholic liver disease

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World Journal of Gastroenterology 2014年第25期20卷 8055-8060页

作者： Yue-Min nan Rong-Qi Wang na fu Department of Traditional and Western Medical Hepatology Third Hospital of Hebei Medical University

Alcoholic liver injury represents a progressive process with a range of consequences including hepatic steatosis, steatohepatitis, liver fibrosis, cirrhosis, and hepatocellular carcinoma. Targeting key molecular regulators involved in the development of alcoholic liver injury may be of great value in the prevention of liver injury. Peroxisome proliferator-activated receptor α (PPARα) plays a pivotal role in modulation of hepatic lipid metabolism, oxidative stress, inflammatory response and fibrogenesis. As such, PPARα may be a potential therapeutic target for the treatment of alcoholic liver disease.

关键词： Alcoholic liver disease Oxidative stress Inflammation Fibrosis Peroxisome proliferator-activated receptor α

Wave Heave Compensation Based on An Optimized Backstepping Control Method

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China Ocean Engineering 2022年第6期36卷 959-968页

作者： ZHANG Qin WANG Xing-yue ZHANG Zheng-zhong ZHOU fu-na HU Xiong Logistics Engineering College Shanghai Maritime UniversityShanghai 201306China

The vessel heave motion caused by wave action increases the difficulty of installing offshore wind ***-board wave heave compensation devices have therefore become increasingly critical in ensuring the stability and safety of the gangway and working *** study accordingly improves the compensation effect of such devices by developing a wave heave compensation model and designing an optimized backstepping control ***,a model of the compensation system including the servo motor and electric cylinder is established by using the mechanism ***,a backstepping control method is designed to track the vessel heave motion,and particle swarm optimization is applied to optimize the control ***,MATLAB/Simulink is used to simulate the application of the optimized backstepping controller,then regular and irregular heave motions are applied as input to a Stewart platform to evaluate the effectiveness of the control *** experimental results show that the compensation efficiency provided by the proposed optimized backstepping control method is larger than 75.0%.

关键词： heave compensation Stewart platform servo motor and electric cylinder system model backstepping control particle swarm optimization

Photoresponsive organic field-effect transistors involving photochromic molecules

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Chinese Chemical Letters 2016年第8期27卷 1319-1329页

作者： Li-na fu Bing Leng Yong-Sheng Li Xi-Ke Gao Laboratory of Low-Dimensional Materials Chemistry Key Laboratory for Ultrafine Materials of the Ministry of EducationSchool of Materials Science and EngineeringEast China University of Science and Technology Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic functional Molecules Shanghai Institute of Organic ChemistryChinese Academy of Sciences

In recent years,organic field-effect transistors（OFETs） with high performance and novel multifunctionalities have attracted considerable ***,featured with reversible photoisomerization and the corresponding variation in color,chemical/physical properties,photochromic molecules have been applied in sensors,photo-switches and *** of photochromic molecules to blend in the device functional layers or to modify the interfaces of OFETs is common way to build *** this review,we focus on the recent advantages on the study of photoresponsive transistors involving one of three typical photochromic compounds spiropyran,diarylethene and *** main strategies are demonstrated in ***,photochromic molecules are doped in active layers or combined with semiconductor structure thus forming photoreversible active ***,the modification of dielectric layer/active layer interface is mainly carried out by bilayer ***,the photo-isomerization of self-assembled monolayer（SAM） on the electrode/active layer interface can reversibly modulate the work functions and charge injection barrier,result in bifunctional *** in all,the combination of photochromic molecules and OFETs is an efficient way for the fabrication of organic photoelectric *** transistors consisted of photochromic molecules are potential candidate for real applications in the future.

关键词： Organic field-effect transistors Photoresponsive transistors Photochromic molecules Spiropyran Diarylethene Azobenzene

The Effects of Graded Abomasal Glucose Infusion on Milk Yield and Composition in Lactating Goats

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Agricultural Sciences in China 2010年第5期9卷 745-753页

作者： LIN Xue-yan ZHANG na LI fu-chang WANG Zhong-hua College of Animal Science Shandong Agricultural University Tai＇an 271018 P.R. China

Four non-pregnant multiparous lactating goats were used in a 4 × 4 latin square experiment in the present study. The four treatments were abomasal infusion of 0, 50, 100, and 150 g d^-1 glucose. The results showed that graded glucose infusion increased milk yield （P 〈 0.01）. The highest milk yield was observed when 50 g d^-1 glucose was infused. An infusion of glucose at 100 or 150 g d^-1 failed to increase milk yield further and milk yield of the 100 g d ^-1 glucose infusion treatment was even significantly lower than that of the 50 g d^-1 treatment （P 〈 0.01）. Though milk fat content was gradually decreased by graded glucose infusions and milk fat yield of the 100 and 150 g d 1 treatments were lower than that of the control （P 〈 0.01）; milk fat yield of the 50 g d i treatment was not depressed and was higher than that of the control （P 〈 0.01）. Graded glucose infusion did not change the contents of milk protein and non-fatty solids. Yields of milk protein （P 〈 0.05）, lactose （P 〈 0.01）, non-fat solids （P 〈 0.01）, and lactose content （P 〈 0.01） of the 50 g d^-1 treatment were higher than those of the control but had no difference among the other three treatments. Contents of those de novo synthesized fatty acids in milk fat remained unchanged or increased and those preformed fatty acids remained unchanged or decreased by graded glucose infusion. Glucose infusion decreased the total yields of C16 ＋ C16：1 and 〉 C16 fatty acids and had no influence on the yield of C4-C14：1 fatty acids （P 〈 0.05）. Results of the present study implied that increased glucose supply had positive effects on the production of milk, milk protein, milk fat, and lactose only when glucose was a limiting factor for milk synthesis. Excessive glucose supply had no further beneficial effects and might depress milk fat synthesis.

关键词： lactating goats glucose milk yield milk composition abomasal infusion

Photoresponsive n-channel organic field-effect transistors based on a tri-component active layer

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Chinese Chemical Letters 2018年第1期29卷 175-178页

作者： Li-na fu Bing Leng Yong-Sheng Li Xi-Ke Gao Laboratory of Low-Dimensional Materials Chemistry Key Laboratory for Ultrafine Materials of the Ministry of Education School of Materials Science and Engineering East China University of Science and Technology Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic functional Molecules Shanghai Institute of Organic ChemistryChinese Academy of Sciences

Introducing photochromic molecules into the active layer of organic field-effect transistors （OFETs） is a direct way to implement a photoresponse nature in OFETs. However, active layer blended photo- responsive transistors based on n-type semiconductors are challenging and rarely studied, which are crucial for multifunctional organic-based logic applications. Herein, we fabricated n-channel photo- responsive OFETs based on a tri-component active layer spin-coated from the mixed solution of an n-type semiconductor （NDI2OD-DTYM2）, spiropyran and polystyrene with a weight ratio of 1：1：1. The morphology of the blended films was improved by the introduction of the polymer matrix. Photochromic spiropyran molecules dispersed in the semiconductor layer could switch between the closed-ring state and ionic open-ring state flexibly under the irradiation of different wavelengths of light, and thus change the channel conductivity reversibly and modulate the OFET characteristics. Therefore, under the irradiation of alternate UV and vis light, both the device carrier mobility and current on and off ratio successfully realized a reversible switch.

关键词： Organic field-effect transistorsPhotoresponsen-Type organic semiconductorSpiropyranPolystyrene

Long-time Dynamics for Thermoelastic Bresse System of Type Ⅲ

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Communications in Mathematical Research 2019年第2期35卷 159-179页

作者： fu na Wang Chun-peng School of Mathematics Southwest Jiaotong University Chengdu 610031 不详

This paper considers the thermoelastic beam system of type Ⅲ with friction dissipations acting on the whole system. By using the methods developed by Chueshov and Lasiecka, we get the quasi-stability property of the system and obtain the existence of a global attractor with finite fractal dimension. Result on exponential attractors of the system is also proved.

关键词： Bresse system quasi-stability global attractor fractal dimension exponential attractor

Astragalus extract inhibits destruction of gastric cancer cells to mesothelial cells by anti-apoptosis

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World Journal of Gastroenterology 2009年第5期15卷 570-577页

作者： Di na fu-nan Liu Zhi-Feng Miao Zong-Min Du Hui-Mian Xu Department of Oncology The First Affiliated Hospital China Medical University Shenyang 110001 Liaoning Province China

AIM： To determine the inhibitory effect of Astragalus memebranaceushas on gastric cancer cell supernatant- induced apoptosis of human peritoneal mesothelial cells. METHODS： Human peritoneal mesothelial cell （HPMC） line HMrSV5 was co-incubated with gastric cancer cell supernatant （MKN45） and/or Astragalus memebranaceushas. Morphological changes in gastric cancer cells were observed under phase-contrast microscope. Quantitative cell damage was determined by MTT assay. Apoptosis was determined under transmission electron microscope and quantified by detectinr, acridine orange/ethidium bromide-stained （AO/EB） condensed nuclei under fluorescent microscope or by flow cytometry. Expressions of Bcl-2 and Bax were evaluated with immunostaining.

关键词： Peritoneal carcinomatosis Stomachneoplasm Astragalus plant Mesothelial cell Apoptosis

Genetic and Clinical Advances of Congenital Muscular Dystrophy

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Chinese Medical Journal 2017年第21期130卷 2624-2631页

作者： Xiao-na fu Hui Xiong Department of Pediatrics Peking University First Hospital Beijing 100034 China

Objective： The aim was to update the genetic and clinical advances of congenital muscular dystrophy （CMD）, based on a systematic review of the literature from 1991 to 2017. Data Sources： Articles in English published in PubMed from 1991 to 2017 English were searched. The terms used in the literature searches were CMD. Study Selection： The task force initially identified citations for 98 published articles. Of the 98 articles, 52 studies were selected after further detailed review. Three articles, which were not written in English, were excluded from the study. This study referred to all the important and English literature in full. Results： CMD is a group of early-onset disorders encompassing great clinical and genetic heterogeneity. Patients present with muscle weakness typically from birth to early infancy, delay or arrest of gross motor development, and joint and/or spinal rigidity. The diagnosis of CMD relies on clinical findings, brain and muscle imaging, muscle biopsy histology, muscle and/or skin immunohistochemical staining, and molecular genetic testing. Conclusions： Advances in next-generation sequencing and histopathological techniques have enabled the recognition of distinct CMD subtypes supported by specific gene identification. Genetic counseling and multidisciplinary management of CMD play an important role in help patients and their family. further elucidation of the significant clinical and genetic heterogeneity, therapeutic targets, and the clinical care for patients remains our challenge for the future.

关键词： Congenital Muscular Dystrophy Diagnosis Recent Advance