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Spatial distribution and influencing factors of settlements in the farming-pastoral ecotone of Inner Mongolia,China

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Ecosystem Health and Sustainability 2020年第1期6卷 558-565,557页

作者： Yu Peng qinghui wang College of Life and Environmental Sciences Minzu University of ChinaBeijingChina Urban Planning&Design Institute of Xiong’an RongchengChina

Rural settlements serve as an important part of the rural landscape,and environmental conditions influence their spatial *** hypothesize that there are variations in the spatial patterns of settlements across different farming–pastoral ecotones that exist in accordance with different human activities and environmental *** used remote sensing imagery,digital elevation model,and GIS technology to analyze and compare the spatial patterns of settlements and factors influencing these patterns across pastoral,agricultural,and ecotone areas in Inner Mongolia,China.A Voronoi model,adjacency analysis,landscape metrics,and quantitative analysis were *** results indicated that(1)the settlements in the three areas tended to have a random spatial distribution,and although there were no significant differences between the settlement types,agricultural settlements tended to be clustered and pastoral settlements tended to be evenly distributed;(2)the pastoral area had only a few large and sparsely fragmented patches;(3)the factors influencing settlement distribution mainly differed with respect to the NDVI,distance to roads and rivers,and elevation across three areas,but the slope degree was *** results indicated there are no significant differences between the spatial patterns of settlements along the agricultural to pastoral gradient,although environmental conditions ***,we can optimize the spatial pattern of settlements and achieve sustainable development within farming–pastoral ecotones.

关键词： Farming–pastoral ecotone settlement spatial characteristic influence factor

Fluorescence Behavior and Emission Mechanisms of Poly(ethylene succinamide)and Its Applications in Fe^(3+)Detection and Data Encryption

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Chinese Journal of Polymer Science 2023年第1期41卷 129-142页

作者： Xubao Jiang qinghui wang Bin Li Shusheng Li Xiang Zheng Kong College of Chemistry and Chemical Engineering University of JinanJinan250022China Québec Center for Functional Materials Department of ChemistryUniversitéde SherbrookeSherbrookeQCJ1K2R1Canada

Conventional fluorescent polymers are featured by large conjugation *** contrast,a new class of fluorescent polymers without any conjugations is gaining great interest in immerging *** is a typical member of the conjugation-free fluorescent ***,studies on their electrophotonic property are hardly available,although widely used in many ***,poly(ethylene succinamide),PA24,is synthesized;its chemical structure confirmed through multiple techniques(NMR,FTIR,XRD,etc.).PA24 is highly emissive as solid and in its solution at room temperature,and the emission is excitation and concentration dependant,with an unusual blue shift under excitation from 270 nm to 320 nm,a hardly observed phenomenon for all fluorescent *** similar emission behavior is also observed under cryogenic condition at 77 *** emission behavior is thoroughly studied;the ephemeral emission blue-shift is interpreted through Förster resonance energy *** on its structures,the emission mechanism is ascribed to cluster-triggered emission,elucidated from multianalyses(NMR,FTIR,UV absorbance and DLS).In presence of a dozen of competitive metal ions,PA24 emission at 450 nm is selectively quenched by Fe^(3+).PA24 is used as probe for Fe^(3+)and H_(2)O_(2) detections and in data ***,this work provides a novel face of polyamide with great potential applications as sensors in different fields.

关键词： Polyamide Fluorescent emission Cluster formation Ferric ion detection Data encryption

Hand Gesture Recognition of Arabic Numbers Using Leap Motion via Deterministic Learning 36

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Hand Gesture Recognition of Arabic Numbers Using Leap Motion...

Classification of Gait Patterns of Anterior Cruciate Ligament Deficient Knees Using Gait Analysis via Deterministic Learning 36

第36届中国控制会议

作者： qinghui wang Ying wang Fenglin Liu Wei Zeng School of Mechanical & Electrical Engineering Longyan University

ISBN: (纸本)9781538629185

The aim of this study is to develop a new method for hand gesture recognition using Leap Motion via deterministic *** and accurate extraction and representation of gesture features are *** recognition approach consists of two stages:a training stage and a recognition *** the training stage,hand gesture features representing hand motion dynamics,including spatial position and direction of fingers,are derived from Leap *** motion dynamics underlying motion patterns of different gestures which represent Arabic numbers(0-9) are locally accurately modeled and approximated by radial basis function(RBF) neural *** obtained knowledge of approximated hand motion dynamics is stored in constant RBF *** the recognition stage,a bank of dynamical estimators is constructed for all the training *** knowledge of hand motion dynamics represented by the constant RBF networks is embedded in the *** comparing the set of estimators with a test gesture pattern to be recognized,a set of recognition errors are *** average L norms of the errors are taken as the recognition measure between the dynamics of the training gesture patterns and the dynamics of the test gesture pattern according to the smallest error ***,experiments are carried out to demonstrate the high recognition performance of the proposed *** using the 2-fold and 10-fold cross-validation styles,the correct recognition rates are reported to be 94.2%and 95.1%,respectively.

关键词： Hand Gesture Recognition Leap Motion Joint Angle Features Motion Dynamics Deterministic Learning

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Classification of Gait Patterns of Anterior Cruciate Ligamen...

Breeding of NHase hyper-producing <i>Rhodococcus ruber</i>strain LUV<sub>30-06</sub>and verification of mutants by RAPD

第36届中国控制会议

作者： Wei Zeng Jin Li qinghui wang Fenglin Liu Ying wang School of Mechanical & Electrical Engineering Longyan University

ISBN: (纸本)9781538629185

The aim of this study is to develop a new method to distinguish between gait patterns of anterior cruciate ligament(ACL) deficient knees and healthy controls with bilateral ACL-intact knees via deterministic *** classification approach consists of two phases:a training phase and a classification *** the training phase,gait features representing gait dynamics,including knee rotations and translations,are derived from the kinematic data of the knees in six-degree-of-freedom(6DOF).Gait dynamics underlying gait patterns of ACL-deficient knees and healthy controls with bilateral ACL-intact knees are locally accurately approximated by radial basis function(RBF) neural *** obtained knowledge of approximated gait dynamics is stored in constant RBF *** patterns of healthy controls and ACL-deficient knees are employed to constitute a training *** the classification phase,a bank of dynamical estimators is constructed for all the training gait *** knowledge of gait dynamics represented by the constant RBF networks is embedded in the *** comparing the set of estimators with a test ACL-deficient knee gait pattern to be classified,a set of classification errors are *** average Lnorms of the errors are taken as the classification measure between the dynamics of the training gait patterns and the dynamics of the test ACL-deficient knee gait pattern according to the smallest error ***,experiments are carried out to demonstrate that the proposed method can effectively separate the gait patterns between the groups of ACL-deficient and ACLintact knees.

关键词： Gait Analysis Deterministic Learning Anterior Cruciate Ligament Deficient Knees Anterior Cruciate Ligament Intact Knees Gait Dynamics

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American Journal of Molecular Biology 2013年第2期3卷 108-114页

作者： Shiwei wang Min wang qinghui wang College of Life Sciences and Engineering of Qiqihar University Qiqihar China Key Laboratory of Industrial Fermentation Microbiology (Tianjin University of Science &Technology) Ministry of Education Tianjin China

A nitrile hydratase (NHase) hyper-producing Rhodococcus ruber strain LUV30-06 was bred by mutagenization on the starting strain CGMCC3090 with ultraviolet irradiation and lithium chloride. The NHase activity of the strain LUV30-06 was increased by 21.99% (3881.3 U/ml), as compared with that of R. ruber CGMCC3090 (3181.4 U/ml). The mutant strain UV30-06 has been proved genetically stable with higher NHase activity in seven successive subcultures as well as random amplified polymorphic DNA analysis (RAPD).

关键词： Rhodococcus ruber NHase Mutagenesis Random Amplified Polymorphic DNA

Influence of Dietary Probiotic Bacillus TC22 and Prebiotic Fructooligosaccharide on Growth,Immune Responses and Disease Resistance against Vibrio splendidus Infection in Sea Cucumber Apostichopus japonicus

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Journal of Ocean University of China 2011年第3期10卷 293-300页

作者： ZHAO Yancui MAI Kangsen XU Wei ZHANG Wenbing AI qinghui ZHANG Yanjiao wang Xiaojie LIUFU Zhiguo The Key Laboratory of Mariculture Ministry of Education Ocean University of China Qingdao 266003 P. R. China

The effects of probiotic Bacillus TC22 (isolated from intestine of infected sea cucumber) and prebiotic fructooligosaccharide (FOS) on growth, immunity and disease resistance in sea cucumber Apostichopus japonicus were studied. Six experimental diets were formulated with combinations of three levels of TC22 (0, 107 and 109 CFU g-1 diet) and two levels of FOS (0 and 0.5%) in a 3 × 2 factorial experiment. At the end of the 8-week feeding trial,animals were challenged by injecting Vibrio splendidus. The results revealed that the specific growth rates (SGR) of sea cucumbers were not affected by TC22 and FOS, or the interaction between TC22 and FOS (P > 0.05). However,there were significant interactions between TC22 and FOS for immune response and disease resistance in sea cucumbers (P 0.05). Therefore, further studies should examine the effects of combinations of other levels of FOS(> 0.5% or < 0.5%) and TC22 on the immunity and disease resistance of sea cucumbers.

关键词： Apostichopus japonicus probiotics prebiotics immunity Vibrio splendidus

Determination of multi-component content and construction of digital cores based on CT grey thresholds of altered igneous rocks

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Global Geology 2023年第3期26卷 157-166页

作者： ZHANG Naiyu GUAN Yao GUO Yuhang wang qinghui ZHANG Lihua PAN Baozhi College of Geo-Exploration Science and Technology Jilin UniversityChangchun 130026China China National Offshore Oil Corporation Shenzhen 518067GuangdongChina

Altered igneous reservoirs have low porosity and permeability,compact structure and certain heterogeneity.A simple digital core with certain generality and multi-parameter constraints can be con-structed to characterize the microscopic pore structure and mineral *** this paper,based on core X-ray,CT images and whole-rock mineral analysis,threshold segmentation of mass content and grayscale distribution of various minerals in different lithologies of igneous rocks in the buried hill of Huizhou depression is carried out to construct digital core of altered igneous *** results show that after converting the mineral mass content into volume content,the minerals of altered igneous rocks in Huizhou depression can be classified into *** to the range of grayscale value,components can be divided into six *** to the difference of the content of components in different lithologies of igneous rocks,differentiated grayscale threshold segmentation is needed to obtain the digital core for a single *** final digital core generation process includes two steps:building a single component digital core,and stacking and *** kind of universal digital core model can support the subsequent pore scale numerical simulation and comprehensive rock physics research.

关键词： CT threshold segmentation digital core mineral

Effect of Discontinuous Administration of β -glucan and Glycyrrhizin on the Growth and Immunity of Pacific White Shrimp Litopenaeus Vannamei

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Feed & Livestock 2010年第3期3卷 5-6页

作者： Nan Bai Kangsen Mai Wenbing Zhang Hongming Ma qinghui Ai Xiaojie wang Key Laboratory of Mariculture （Ministry of Education） Ocean Universily of China Clingdao 266003 PR China

A six-week growth trial was conducted to compare the effects of different feeding strate- gies of dietary immunostimulants on the growth and immunity of white shrimp Litopenaeus vannamei （4.70 ±0.20g）. Shrimps were fed with diet containing glycyrrhizin continuously, containing β -glucan continuously, discontinuously （seven days with diet containing β -gluseven days with diet without -glucan; two days with diet containing β-glucan following five days with diet without -glucan）,

关键词： Pacific white shrimp β -glucan glycyrrhizin immunity immunity fatigue

Trajectory-Based Hand Gesture Recognition Using Kinect via Deterministic Learning

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Trajectory-Based Hand Gesture Recognition Using Kinect via D...