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| 1 | PlantcircBase: A Database for Plant Circular RNAs显示文摘 | Qinjie Chu Xingchen Zhang Xintian Zhu Chen Liu Lingfeng Mao Chuyu Ye Qian-Hao Zhu Longjiang Fan | 2017 | Molecular Plant2017，10，8： | 15 |
| 2 | How does contemporary climate versus climate change velocity affect endemic plant species richness in China?显示文摘Climate change is considered a top threat to biodiversity, but the relative roles of contemporary climate versus the rate of climate change in determining spatial patterns of biodiversity are far from clear. China has a very diverse flora and harbors a high percentage of endemic species, but the mechanisms underlying spatial patterns of plant endemism are poorly understood. This study explores the geographical patterns of a representative sample of 555 endemic seed plant species at the scale of 0.5° latitude 9 0.5° longitude. Ordinary least squares and spatial autoregressive models were compared to assess the relationship between richness of endemics and the rate of climate change in the past century, as well as a group of contemporary climate variables. In China, a high level of endemism was associated with high elevation and low rate of climate change. However, contemporary climate had a stronger impact than climate change velocity in the past century on endemic species richness patterns. Specifically,mean annual precipitation and annual range of temperature were important contemporary climatic factors. The rate of change of annual mean temperature, but not that of annual precipitation, also significantly contributed to the spatial pattern of plant endemic species richness. We found no significant relationship between topographic variation and endemic species richness, while temperature variability at multiple time scales was strongly correlated with the species richness pattern. Future work should consider the direction of climate change and incorporate higher-resolution data. | Chunjing Qiu Zehao Shen Peihao Peng Lingfeng Mao Xinshi Zhang | 2014 | Chinese Science Bulletin2014，59，34： | 4 |
| 3 | The Genomes of the Allohexaploid Echinochloa crus-galli and Its Progenitors Provide Insights into Polyploidization-Driven Adaptation显示文摘The hexaploid species Echinochloa crus-galli is one of the most detrimental weeds in crop fields,especially in rice paddies.Its evolutionary history is similar to that of bread wheat,arising through polyploidization after hybridization between a tetraploid and a diploid species.In this study,we generated and analyzed high-quality genome sequences of diploid(E.haploclada),tetraploid(E.oryzicola),and hexaploid(E.crus-galli)Echinochloa species.Gene family analysis showed a significant loss of disease-resistance genes such as those encoding NB-ARC domain-containing proteins during Echinochloa polyploidization,contrary to their significant expansionduring wheat polyploidization,suggesting that natural selection might favor reduced investment in resistance in this weed to maximize its growth and reproduction.In contrast to the asymmetric patterns of genome evolution observed in wheat and other crops,no significant differences in selection pressure were detected between the subgenomes in E.oryzicola and E.crus-galli.In addition,distinctive differences in subgenome transcriptome dynamics during hexaploidization were observed between E.crus-galli and bread wheat.Collectively,our study documents genomic mechanisms underlying the adaptation of a major agricultural weed during polyploidization.The genomic and transcriptomic resources of three Echinochloa species and new insights into the polyploidization-driven adaptive evolution would be useful for future breeding cereal crops. | Chu-Yu Ye Dongya Wu Lingfeng Mao Lei Jia Jie Qiu Sangting Lao Meihong Chen Bowen Jiang Wei Tang Qiong Peng Lang Pan Lifeng Wang Xiaoxiao Feng Longbiao Guo Chulong Zhang Elizabeth A.Kellogg Kenneth M.Olsen Lianyang Bai Longjiang Fan | 2020 | Molecular Plant2020，13，9： | 4 |
| 4 | Temporal and spatial comparisons of angiosperm diversity between eastern Asia and North America显示文摘Comparative approaches that examine floras with similar environments, but different diversity patterns, provide good opportunities to elucidate how uneven distributions of biodiversity were assembled. Eastern Asia(EA) and North America north of Mexico(NA;see definitions of EA and NA in Fig. S1 A) share similar geographical environments with comparable latitude, land area and climate. | Haihua Hu Jianfei Ye Bing Liu Lingfeng Mao Stephen A.Smith Russell L.Barrett Pamela S.Soltis Douglas E.Soltis Zhiduan Chen Limin Lu | 2022 | National Science Review2022，9，6： | 3 |
| 5 | Altitudinal patterns of maximum plant height on the Tibetan Plateau显示文摘Aims Several studies have shown that plant height changes along environmen-tal gradients.However,altitudinal patterns of plant height across species are still unclear,especially in regions sensitive to climate change.As canopy height decreases dramatically near the tree line in alpine areas,we hypothesize that plant height across all species also decreases with increasing altitude,and distinct thresholds exist along this gradient.Methods Using a large dataset of maximum plant height and elevation range(400 to 6000 m a.s.l.)of 4295 angiosperms from the regional flora of the Tibetan Plateau,we regressed plant height for every 100 m belt against elevation to explore the relationships.To identify the approximate boundaries where dramatic changes in plant height occurs for herbaceous plants,shrubs,trees,woody plants and all angiosperms,we used piecewise linear regression.Phylogenetically independent contrast was used to test the potential evolutionary influences on altitudinal patterns at the family level.Important Findings Results showed that for herbaceous plants,shrubs,trees,woody plants and all angiosperms,plant height decreases significantly as altitude increases.In addition,we found that altitude,a proxy for many environmental factors,had obvious thresholds(breakpoints)dictating patterns of plant height.The results of phylogenetically independent contrast also emphasized the importance of evolution-ary history in determining the altitudinal patterns of plant height for some growth forms.Our results highlight the relative intense filter-ing effect of environmental factors in shaping patterns of functional traits and how this could vary for different ranges of environmental variables. | Lingfeng Mao Shengbin Chen Jinlong Zhang Guangsheng Zhou | 2018 | Journal of Plant Ecology2018，11，1： | 3 |
| 6 | Periodic performance of the chaotic spread spectrum sequence on finite precision显示文摘It is well known that the periodic performance of spread spectrum sequence heavily affects the cor-relative and secure characteristics of communication systems.The chaotic binary sequence is paid more and more attention since it is one kind of applicable spread spectrum sequences.However,there are unavoidable short cyclic problems for chaotic binary sequences in finite precision.The chaotic binary sequence generating methods are studied first.Then the short cyclic behavior of the chaotic sequences is analyzed in detail,which are generated by quantification approaches with finite word-length.At the same time,a chaotic similar function is defined for presenting the cyclic characteristics of the sequences.Based on these efforts,an improved method with scrambling control for generating chaotic binary sequences is proposed.To quantitatively describe the improvement of periodic performance of the sequences,an orthogonal estimator is also defined.Some simulating results are provided.From the theoretical deduction and the experimental results,it is concluded that the proposed method can effectively increase the period and raise the complexity of the chaotic sequences to some extent. | Zhu Canyan Zhang Lihua Wang Yiming Liu Jiasheng Mao Lingfeng | 2008 | Journal of Systems Engineering and Electronics2008，19，4： | 3 |
| 7 | Recent advancements in surface plasmon polaritons-plasmonics subwavelength structures in microwave and terahertz regimes显示文摘This paper presents a review of recent investigational studies on exciting Surface Plasmon Polaritous (SPPs)in MicroWave (MW)and TeraHertZ (THz)regimes by using subwavelength corrugated patterns on conductive or metal surfaces.This article also describes SPP Microstrip (MS)structures at microwave and terahertz frequencies, and compares their significance with that of conventional MS Transmission Lines (TL),in order to tackle the key challenges of high gain,bandwidth size,compactness,TL losses,and signal integrity in high-end electronic de- vices.Because they have subwavelength properties,surface plasmon polaritous are gaining attention for their improved performance and ability for miniaturization in high-speed dense circuits.They possess comparably minuscule wavelength compared to incident light (photons).Consequently,they can demonstrate stronger spatial confinement and higher local field intensity at optical frequencies.In addition to engineering spoof SPP waveguides,which are created by engraving grooves and slits on metal surfaces to allow operation on at low frequencies (microwave and terahertz),semiconductors with smaller permittivity values and thus lower free charge carrier concentration have been demonstrated as a potential candidate in plasmonic devices.If necessary,further tuning of semiconductor-based SPP structures is aided by controlling the charge carrier concentration through doping,or by external stimuli such as optical illumination or thermal excitation of charge carriers from valence to conduction bands.This article conclusively covers previously elucidated perspectives on manipulating SSPPs in the MW and THz ranges,and emphasizes how these could steer next-generation plasmonic devices. | Rana Sadaf Anwar Huansheng Ning Lingfeng Mao | 2018 | Digital Communications and Networks2018，4，4： | 3 |
| 8 | glmm.hp:一个计算广义线性混合模型中单个预测变量效应的R包显示文摘广义线性混合效应模型(GLMMs)是当代生态学研究中广泛应用的数据分析模型。然而,确定GLMMs中共线性的预测变量(固定效应)对响应变量的相对重要性是个挑战。基于适用于多元分析的‘平均共享方差’的算法,我们开发一个新的R包glmm.hp来分解GLMMs中由固定效应解释的边际(marginal)R2^(2)。我们论述了该软件包的工作原理并通过模拟数据集演示了该软件包的使用。glmm.hp包的输出结果为每个预测变量将获得一个独自的(individual)边际R2^(2),且它们的总和刚好等于模型总的边际R2^(2)。总之,我们相信glmm.hp包将有助于解释GLMMs的输出结果。 | Jiangshan Lai Yi Zou Shuang Zhang Xiaoguang Zhang Lingfeng Mao | 2022 | Journal of Plant Ecology2022，15，6： | 2 |
| 9 | Electromagnetic spectrum chipless radio frequency identification:A review显示文摘Over the past few years,Radio Frequency IDentification(RFID)has stridden significantly due to its adoption in many business and daily life activities.RFID empowers end-to-end and item-by-item visibility,letting the customers or decision-makers effectively trail the personnel and resources for improved management.Significant research and development in this area have transformed the inexpensive,miniaturized technology of RFIDs without chip inside.Chipless Radio Frequency IDentification(CRFID)is a unique wireless technology based on radar principle to sense,identify,and track the objects.CRFIDs are simplified and miniaturized tags of traditional RFID,which can widely be used in small and cheap objects/applications in our daily life.This paper reviews the definition,principle,and most recent development in CRFIDs.Based on the reported researches,the ElectroMagnetic Spectrum(EMS)method is typical,which has been concerned by many RFID researchers.Therefore,this paper reviews different types of EMS CRFID tag and classifies these tags based on structure design emphasizing their significant geometries in comparison with performance parameters.Antenna and coding methods of the EMS CRFID are also elaborated,contrasting the tag capacity and coding performance.Finally,we briefly summarize the challenges and limitations in this emerging field and look forward to the prospects of future CRFID. | Qingjuan Li Rana Sadaf Anwar Huansheng Ning Jun Wang Lingfeng Mao | 2020 | Digital Communications and Networks2020，6，3： | 2 |
| 10 | Thickness measurement for ultra thin-film insulator metal -oxide -semiconductor structure using Fowler - Nordheim tunneling current oscillations 显示文摘 | MAO Lingfeng TAN Changhua XU Mingzhen | 2000 | J Appl Phys2000，88，11： | 1 |
| 11 | Remote surface roughness effects on inversion electron density in nano-MOSFET 显示文摘 | Wang Ziou Mao Lingfeng | 2009 | The European Physical Journal Applied Physics2009，48，2： | 1 |
| 12 | Environmental landscape determinants of maximum forest canopy height of boreal forests显示文摘Aims Canopy height is a key driver of forest biodiversity and carbon cycling.Accurate estimates of canopy height are needed for assess-ing mechanisms relating to ecological patterns and processes of tree height limitations.At global scales forest canopy height patterns are largely controlled by climate,while local variation at fine scales is due to differences in disturbance history and local patterns in envir-onmental conditions.The relative effect of local environmental driv-ers on canopy height is poorly understood partly due to gaps in data on canopy height and methods for examining limiting factors.Here,we used airborne laser scanning(ALS)data on vegetation structure of boreal forests to examine the effects of environmental factors on potential maximum forest canopy height.Methods Relationships between maximum canopy height from ALS meas-ures and environmental variables were examined to assess factors limiting tree height.Specifically,we used quantile regression at the 0.90 quantile to relate maximum canopy height with environmental characteristics of climate(i.e.mean annual temperature[MAT]and mean annual precipitation),terrain(i.e.slope)and depth-to-water(DTW)across a 33000 km2 multiple use boreal forest landscape in northeast Alberta,Canada.Important Findings Maximum canopy height was positively associated with MAT,ter-rain slope and terrain-derived DTW,collectively explaining 33.2%of the variation in heights.The strongest explanatory variable was DTW explaining 26%of canopy height variation with peatland forests having naturally shorter maximum canopy heights,but also more sites currently at their maximum potential height.In con-trast,the most productive forests(i.e.mesic to xeric upland forests)had the fewest sites at their potential maximum height,illustrating the effects of long-term forest management,wildfires and general anthropogenic footprints on reducing the extent and abundance of older,taller forest habitat in Alberta’s boreal forest. | Lingfeng Mao Christopher W.Bater John JStadt Barry White Piotr Tompalski Nicholas C.Coops Scott E.Nielsen | 2019 | Journal of Plant Ecology2019，12，1： | 0 |
| 13 | glmm.hp包对零膨胀广义线性混合模型与多元回归的扩展显示文摘glmm.hp是一个专为评估广义线性混合模型(GLMMs)中共线预测变量的相对重要性而开发的R包。自从其于2022年1月发布以来,已迅速在生态学界获得认可和流行。然而,先前的glmm.hp包仅限于处理仅来源于lme4和nlme包的GLMMs。最新的glmm.hp包增加了新功能。首先,它整合了从glmmTMB包获得的结果,使其能够有效地处理零膨胀广义线性混合模型。此外,最新的glmm.hp包添加了基于原始R2和校正R2的普通多元回归的共性分析和层次分割的功能。本文将展示这些新功能,更方便广大的研究人员使用。 | Jiangshan Lai Weijie Zhu Dongfang Cui Lingfeng Mao | 2023 | Journal of Plant Ecology2023，16，6： | 0 |
| 14 | R在林业研究中的应用显示文摘R是用于数据分析、建模和可视化的强大编程语言之一,广泛运用于各个科学学科,但其林学研究领域受欢迎程度还尚待探索。为了回答这个问题,我们对8种主要林学期刊上2013至2022年间发表的14800多篇研究文章R和R包的使用频率进行了全面分析。分析结果显示,有6700篇文章(占总数的45.7%)明确使用R进行数据分析。R的使用率呈现出持续增长的趋势,从2013年的28.3%上升到2022年的60.9%。使用最多的5个R软件包包括vegan、lme4、nlme、MuMIn和ggplot2。各期刊的关注点有所不同导致R软件包使用频率格局不同。该分析表明,R语言凭借其强大的统计和数据可视化功能,在林学各个领域具有广阔的使用前景。 | Jiangshan Lai Weijie Zhu Dongfang Cui Dayong Fan Lingfeng Mao | 2023 | Journal of Plant Ecology2023，16，6： | 0 |
| 15 | More endemic birds occur in regions with stable climate, more plant species and high altitudinal range in China显示文摘Background:Geographical distribution of endemic species and its multiple scale drivers are an important topic in biodiversity conservation,because these species are especially vulnerable to climate change and habitat degradation,and therefore have high conservation priority.Here,for the first time,we simultaneously linked glacial-interglacial climate change,contemporary climate,plant species richness and altitudinal range with endemic bird distribution in China.Methods:Ordinary least squares models and simultaneous autoregressive models were used to assess the associations between endemic bird richness,endemic bird ratio and each explanatory variable.Structural Equation Models were also performed to test the direct and indirect effects of these variables on endemic bird richness and endemic bird ratio.Results:Higher endemic bird richness and endemic bird ratio occurred in regions with stable glacial-interglacial temperature,i.e.,southwest China.Plant species richness and altitudinal range were also positively correlated with endemic bird richness and endemic bird ratio.Glacial-interglacial temperature change,contemporary precipitation,plant species richness and altitudinal range were all included in the best combination of variables for endemic bird richness.Importantly,glacial-interglacial temperature change had strong direct effects on both endemic bird richness and endemic bird ratio,while plant species richness only had a direct effect on endemic bird richness.Conclusions:Our results indicate that endemic birds in China concentrate in southwest regions where there are stable glacial-interglacial temperature,more plant species and larger altitudinal range.Notably,while stable climate has strong direct effects on both endemic bird richness and endemic bird ratio,plant species may affect endemic bird richness through its effect on overall bird species richness.Importantly,the recent anthropogenic activities have also significantly intensified in this region,which would pose huge challenge for biodiversity conservation in China. | Gang Feng Xiongwei Huang Lingfeng Mao Na Wang Xueting Yang Yanping Wang | 2020 | Avian Research2020，11，2： | 0 |
| 16 | Generating Markov Logic Networks Rulebase Based on Probabilistic Latent Semantics Analysis显示文摘Human Activity Recognition(HAR)has become a subject of concern and plays an important role in daily life.HAR uses sensor devices to collect user behavior data,obtain human activity information and identify them.Markov Logic Networks(MLN)are widely used in HAR as an effective combination of knowledge and data.MLN can solve the problems of complexity and uncertainty,and has good knowledge expression ability.However,MLN structure learning is relatively weak and requires a lot of computing and storage resources.Essentially,the MLN structure is derived from sensor data in the current scene.Assuming that the sensor data can be effectively sliced and the sliced data can be converted into semantic rules,MLN structure can be obtained.To this end,we propose a rulebase building scheme based on probabilistic latent semantic analysis to provide a semantic rulebase for MLN learning.Such a rulebase can reduce the time required for MLN structure learning.We apply the rulebase building scheme to single-person indoor activity recognition and prove that the scheme can effectively reduce the MLN learning time.In addition,we evaluate the parameters of the rulebase building scheme to check its stability. | Shan Cui Tao Zhu Xiao Zhang Liming Chen Lingfeng Mao Huansheng Ning | 2023 | Tsinghua Science and Technology2023，28，5： | 0 |
| 17 | Phase Coherence Method for the Resonant Frequency Analysis of the Modified Dumbbell-Shaped Defected Ground Structure Resonator on Coplanar Waveguide显示文摘A The resonance of the Modified dumbbellshaped defected ground structure(MD-DGS) resonator on coplanar waveguide is investigated systematically based on the phase coherence of electromagnetic waves.Through the analysis of two presented interference modes,the resonant frequencies can be fully predicted,and the physical understanding behind these resonances is clearly revealed.The proposed analysis is verified by the simulation and measurement results of the MD-DGS resonator.Both the electric field distribution and the Poynting vector distribution of the MD-DGS resonator at the resonant frequencies further demonstrate the validity of the theoretical analysis. | WANG Jun NING Huansheng DONG Han HONG Tao XIONG Qingxu MAO Lingfeng | 2014 | Chinese Journal of Electronics2014，23，2： | 0 |
| 18 | Numerical modeling and experimental study of microstamping process for fabricating microchannels using thin sheets of titanium显示文摘Ultra-thin sheets of titanium for fabricating microchannels have been used in fuel cells due to their good corrosion resistance and high strength-weight ratio. This paper presents a constitutive model for studying the anisotropy effects of pure titanium(CP-Ti) sheet on the springback behavior and forming properties during the microstamping process. Thin sheets of CP-Ti specimens with different orientations were examined using uniaxial tensile tests to assess the effects of anisotropy on their mechanical properties. Then an anisotropic constitutive model considering the off-axis elastic modulus was developed based on orthotropic elasticity and Hill's yield criterion. Numerical modeling and simulation of the microstamping process for fabricating multi-channel structures were performed. The effects of anisotropy on the springback of multi-channels were investigated and compared with experimental results;the effects of tool dimension parameters on the formability of microchannel structures were also analyzed. The results showed that the anisotropy of thin titanium sheets causes various degrees of forming loads and springback in the microstamping of microchannels at different orientations. This study accurately predicts the springback of thin titanium sheet used to fabricate microchannel structures and is a good guide to the formation of such structures. | Wenze MAO Yancheng WANG Deqing MEI Lingfeng XUAN Caiying ZHOU | 2023 | Journal of Zhejiang University-Science A(Applied Physics & Engineering)2023，24，12： | 0 |
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