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Complex Object Shapes Recognition. Automatic Aid Photointerpretation in a Satellite Image

International Journal of Geosciences 2012年第1期3卷 21-24页

作者： Kada Mouedden Youcef Amar macho anani Sara Lebid Mohammed Benyahia Department of Electronics Faculty of Engineering Sciences Djillali Liabes University of Sidi Bel Abbes Sidi Bel Abbes Algeria

The interpretation of geological structures on earth observation images involves like many other domains to both visual observation as well as specialized knowledge. To help this process and make it more objective, we propose a method to extract the components of complex shapes with a geological significance. Thus, remote sensing allows the production of digital recordings reflecting the objects’ brightness measures on the soil. These recordings are often presented as images and ready to be computer automatically processed. The numerical techniques used exploit the morphology ma- thematical transformations properties. Presentation shows the operations’ sequences with tailored properties. The example shown is a portion of an anticline fraction in which the organization shows clearly oriented entities. The results are obtained by a procedure with an interest in the geological reasoning: it is the extraction of entities involved in the observed structure and the exploration of the main direction of a set of objects striking the structure. Extraction of elementary entities is made by their physical and physiognomic characteristics recognition such as reflectance, the shadow effect, size, shape or orientation. The resulting image must then be stripped frequently of many artifacts. Another sequence has been developed to minimize the noise due to the direct identification of physical measures contained in the image. Data from different spectral bands are first filtered by an operator of grayscale morphology to remove high frequency spatial components. The image then obtained in the treatment that follows is therefore more compact and closer to the needs of the geologist. The search for significant overall direction comes from interception measures sampling a rotation from 0 to 180 degrees. The results obtained show a clear geological significance of the organization of the extracted objects.

关键词： Object Shapes Recognition Photointerpretation

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Impact of Industrial Pollution on the Zooplankton Population Diversity of the Hammam Boughrara Dam

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Journal of Environmental Science and Engineering(A) 2012年第4期1卷 527-532页

作者： Youcef Amar Benyounes Djahed Sara Lebid macho anani Kada Moueddene Christian Mathieu GREEN Laboratory Djillali Liabes University Sidi Bel Abbes 22000 Algeria Jean Perrin Science Faculty Artois University Lens 62300 France

Works concerning zooplankton of freshwaters of the western area of Algeria are only very fragmentary and remain at an embryonic state. Remediating to this situation, it led a study of the biodiversity and zooplanktonic populations distribution in time and space in the Boughrara dam lake which remains subject to a strong pollution coming essentially from Morocco. The preliminary results of the faunistic analysis of the zooplanktonic populations enabled to highlight an important richness of zoological groups. The CFA （correspondences factorial analysis） and the AHC （ascending hierarchical classification） methods used both enabled to define the species distribution of both open waters and littoral ones, and also to perform existing affinities between them and the state of the used medium. Compared to other barrages, such as those of Bouhanifia and of Sarno, the zooplanktonic populations of both open waters and littoral populations appear to a great extent numerous in rain period. On the quantitative and qualitative level, the zooplanktonic populations strongly suffer from the pollution contamination coming from the Mouillah River especially in summer period. It is time to think about the protection of this fauna which is the second trophic chain link and this intending to preserve the ecosystems in an equilibrium state and to consider the exploitation of natural resources in the realization of an aquacultural farm.

关键词： Biodiversity faunistic analysis pollution zooplanktonic populations.

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Temperature Variations in Sidi Bel Abbes during the Last Three Decades

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Journal of Environmental Science and Engineering(B) 2012年第5期1卷 690-694页

作者： Sara Lebid Youcef Amar macho anani Benyounes Djahed KadaMouedden Christian Mathieu Green Laboratory Djillali Liabes University ofSidi Bel A bbes Sidi Bel A bbes 22000 AIgeria Faculty of Sciences Jean Perrin. Artois University Lens Cedex 62000 France

The Mediterranean climate of the Sidi Bel Abbes city in northwestern Algeria has not been the subject of many investigations except some sporadic syntheses reports. However, climate change studying its most important parameters has not, at our knowledge, been the subject of a rigorous study. For this purpose this work intends to gather several temperatures ranging between 1980 and 2006 and find a mathematical model that tells us climate changes following changes in temperature during this time interval. Consequently and undesirably, the results confirm firmly the global greenhouse effect affecting our planet, but what seems rather puzzling is the fact that this warming trend has accelerated over time resulting in a changing climate toward warmer periods, for that reason a likely shift in the region of a semi-arid to tropical or arid regime overall, depending mainly on the evolution of the Azores anticyclone.

关键词： Climate temperature heat quantity global warming greenhouse effect.

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QoS-guaranteed packet scheduling in wireless networks

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The Journal of China Universities of Posts and Telecommunications 2009年第2期16卷 63-67页

作者： ZHANG Deng-yin JIANG Juan anani Adi LI Hai-bo Institute of Signal Processing and Transmission Nanjing University of Posts and Telecommunications Nanjing 210003 China Department of Applied Physics and Electronics Umea University Umea 90187 Sweden

To guarantee the quality of service （QoS） of a wireless network, a new packet scheduling algorithm using cross-layer design technique is proposed in this article. First, the demand of packet scheduling for multimedia transmission in wireless networks and the deficiency of the existing packet scheduling algorithms are analyzed. Then the model of the QoS-gnaranteed packet scheduling （QPS） algorithm of high speed downlink packet access （HSDPA） and the cost function of packet transmission are designed. The calculation method of packet delay time for wireless channels is expounded in detail, and complete steps to realize the QPS algorithm are also given. The simulation results show that the QPS algorithm that provides the scheduling sequence of packets with calculated values can effectively improve the performance of delay and throughput.

关键词： packet scheduling QoS wireless network cross-layer design

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Comprehensive control for unified power quality conditioners

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Journal of Modern Power Systems and Clean Energy 2017年第4期5卷 609-619页

作者： Miguel OCHOA-GIMéNEZ Aurelio GARCíA-CERRADA Juan Luis ZAMORA-macho Gamesa Electric S.A. 28823 CosladaMadridSpain School of Engineering Comillas Pontifical University28015 MadridSpain

This paper presents a comprehensive control strategy for unified power quality conditioners(UPQCs) to compensate for both voltage and current quality *** controllers for the series and shunt components of the UPQC are, equally, divided into three blocks: à main controller, which deals with the fundamental-frequency issues such as active and reactive power flow;` harmonic controller, which ensures zero-error tracking while compensating voltage and current harmonics;′ the set-point generation block, which handles the different control objectives of the UPQC. The controller design procedure has been simplified to the selection of three parameters for each converter. Furthermore, the proposed strategy can be implemented measuring only four variables, which represents a reasonable number of sensors. In addition, a pulse width modulation(PWM)-based modulation with fixed switching frequency is used for both converters. The proposed control strategy has been validated experimentally under different conditions, including grid-frequency variations.

关键词： Unified power quality conditioner(UPQC) Powerquality Harmoniccontrol Pulse width modulation(PWM)

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Modification of the susceptibility gene TaPsIPK1‑a win‑win for wheat disease resistance and yield

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Stress Biology 2022年第1期2卷 193-196页

作者： Alberto macho Pengcheng Wang Jian‑Kang Zhu Shanghai Center for Plant Stress Biology CAS Center for Excellence in Molecular Plant SciencesChinese Academy of SciencesShanghai 200032China Institute of Advanced Biotechnology and School of Life Sciences Southern University of Science and TechnologyShenzhen 518055China Center for Advanced Bioindustry Technologies Chinese Academy of Agricultural SciencesBeijing 100081China

Wheat is one of the most important cereal crops,and it is essential for worldwide food ***,wheat production is threatened by various diseases,including wheat stripe rust caused by the fungus Puccinia striiformis ***(Pst).The development of plant resistance against disease is usually challenged by potential reduction in crop yield due to the enhancement of plant *** a recent article,Wang et *** that TaPsIPK1 is a susceptibil-ity gene targeted by rust *** of TaPsIPK1 increases resistance to stripe rust without any developmental effects or yield penalty,providing an exceptional resource for developing disease resistance in wheat.

关键词： Wheat Wheat stripe rust TaPsIPK1 Resistance genes

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JASMONATE-ZIM DOMAIN proteins engage Polycomb chromatin modifiers to modulate Jasmonate signaling in Arabidopsis

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Molecular Plant 2021年第5期14卷 732-747页

作者： Zicong Li Xiao Luo Yang Ou Huijun Jiao Li Peng Xing Fu Alberto P.macho Renyi Liu Yuehui He Shanghai Center for Plant Stress Biology Chinese Academy of Sciences Center for Excellence in Molecular Plant SciencesShanghai 201602China Ministry of Education Key Laboratory of Plant Development and Environmental Adaption Biology School of Life SciencesShandong UniversityQingdao 266237China Department of Biological Sciences National University of SingaporeSingapore 117543Singapore Peking University Institute of Advanced Agricultural Sciences WeifangShandong 261000China Center for Agroforestry Mega Data Sciences Haixia Institute of Science and TechnologyFujian Agriculture and Forestry UniversityFuzhou 350002China State Key Laboratory of Protein and Plant Gene Research Peking-Tsinghua Center for Life SciencesSchool of Advanced Agriculture SciencesPeking UniversityBeijing 100871China

Jasmonate(JA)regulates various aspects of plant growth and development and stress responses,with prominent roles in male reproductive development and defenses against herbivores and necrotrophic ***-ZIM DOMAIN(JAZ)proteins are key regulators in the JA signaling pathway and function to repress the expression of JA-responsive ***,we show that JAZ proteins directly interact with several chromatin-associated Polycomb proteins to mediate repressive chromatin modifications at JA-responsive genes and,thus,their transcriptional repression in *** analyses revealed that the developmental defects,including anther and pollen abnormalities,resulting from loss or block of JA signaling were partially rescued by loss of Polycomb protein-mediated chromatin silencing(Polycomb repression).We further found that JAZ-mediated transcriptional repression during anther and pollen development requires Polycomb proteins at four key Regulatory *** of genome-wide occupancy of a Polycomb factor and transcriptome reprogramming in response to JA revealed that Polycomb repression is involved in the repression of various JA-responsive *** together,our study reveals an important chromatin-based mechanism for JAZ-mediated transcriptional repression and JA signaling in plants.

关键词： jasmonate JA response Polycomb proteins JAZ proteins anther development H3K27me3

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复杂性与非系统性风险——来自美国的银行持股公司的实证分析

复杂性与非系统性风险——来自美国的银行持股公司的实证分析

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作者： Makafui anani 厦门大学

学位级别：硕士

现有的文献在研究银行持股公司的复杂性和风险的关系问题上,忽略了对于来自国内与国外活动的复杂性的描述。本文重新研究了上述关系,着重强调了从2002年第一季度到2015年第四季度期间美国的银行持股公司的国内复杂性和来自其他活动(衍... 详细信息

现有的文献在研究银行持股公司的复杂性和风险的关系问题上,忽略了对于来自国内与国外活动的复杂性的描述。本文重新研究了上述关系,着重强调了从2002年第一季度到2015年第四季度期间美国的银行持股公司的国内复杂性和来自其他活动(衍生品和跨国行为)的复杂性。基于此目的,本文引入了一个多层次的方法来测量复杂性,并与银行持股公司的多样性程度相联系。本文数据来自于WRDS银行持股公司数据库中的统一数据和配对数据,Orbis Bank Focus数据库和Datastream.本文总体上证实了复杂性和风险的显著正相关关系。此研究挑战了银行持股公司的复杂性或许是好的这一观点,并与那些指出银行持股公司的复杂性增加了公司失败的几率的模型相一致。然而,研究结果在小型和大型的银行持股公司的样本中有所不同。对于小型的银行持股公司,随着国内复杂性的提高,它们愿意承担较高水平的风险。对于大型的银行持股公司,国内复杂性的提高增加了破产的风险,但另一方面又减少了他们收入的波动性。从其他活动中而来的复杂性对于小型和大型的银行持股公司而言都有负面的影响。非利息收入的多元化对于大型银行持股公司来说是中等风险的,但另一方面,经本文研究证实,参与多余的非利息活动会增加复杂性对大型银行持股公司的风险的负面影响。所以,大型银行持股公司应该参与适量的非利息活动。对于小型银行持股公司而言,目前没有证据表明非利息活动多元化会对它们的风险产生重大影响。本文也分析了复杂性-风险这一关系在金融危机时期和其他时期是否有不同特点。全样本数据结果表明,对于全部的银行持股公司而言,国内复杂性和其他活动的复杂性对于风险的负面影响在2007到2009年金融危机期间趋于恶化。如果区分小型和大型银行持股公司,此结果仍成立。也就是说,结果表明国内复杂性的负面影响在金融危机期间对于所有的银行持股公司而言都恶化了。大型银行持股公司的结果也表明了在金融危机期间,来自于其他活动(衍生品和跨国活动)的高度复杂性导致了风险的增加。最后,固定效应估计模型导致了偶发参数问题,此问题由被忽视的个体效应和不随时间变化的效应的干扰所导致。这个问题导致了其他估计系数是有偏的,因此需要改正这些偏误。基于此考虑,本研究对回归结果采用了 Split-Sample Jackknife偏误改正方法,而大多数研究都忽略了这一点。

关键词：复杂性特质风险银行持股公司(BHC) 非利益多元化拆分样例 Jackknife法

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Intra-strain Elicitation and Suppression of Plant Immunity by Ralstonia solanacearum Type-III Effectors in Nicotiana benthamiana

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Plant Communications 2020年第4期1卷 87-100页

作者： Yuying Sang Wenjia Yu Haiyan Zhuang Yali Wei Lida Derevnina Gang Yu Jiamin Luo Alberto P.macho Shanghai Center for Plant Stress Biology CAS Center for Excellence in Molecular Plant SciencesShanghai Institutes of Biological SciencesChinese Academy of SciencesShanghai 201602China University of Chinese Academy of Sciences BeijingChina The Sainsbury Laboratory University of East AngliaNorwich Research ParkNorwich NR47UHUK

Effector proteins delivered inside plant cells are powerful weapons for bacterial pathogens,but this exposes the pathogen to potential recognition by the plant immune ***,the effector repertoire of a given pathogen must be balanced for a successful *** solanacearum is an aggressive pathogen with a large repertoire of secreted *** of these effectors,RipE1,is conserved in most *** strains sequenced to *** this work,we found that RipE1 triggers immunity in ***,which requires the immune regulator SGT1,but not EDS1 or ***,RipE1-triggered immunity induces the accumulation of salicylic acid(SA)and the overexpression of several genes encoding phenylalanine-ammonia lyases(PALs),suggesting that the unconventional PALmediated pathway is responsible for the observed SA ***,RipE1 recognition also induces the expression of jasmonic acid(JA)-responsive genes and JA biosynthesis,suggesting that both SA and JA may act cooperatively in response to *** further found that RipE1 expression leads to the accumulation of glutathione in plant cells,which precedes the activation of immune *** secretes another effector,RipAY,which is known to inhibit immune responses by degrading cellular ***,RipAY inhibits RipE1-triggered immune *** work shows a strategy employed by *** to counteract the perception of its effector proteins by plant immune system.

关键词： ETI SGT1 effector immunity Ralstonia PAL

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M-learning in review： Technology, standard and evaluation

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通讯和计算机（中英文版） 2008年第11期5卷 1-6页

作者： anani Adi ZHANG Deng-yin LI Hai-bo Digital Media Laboratory Department of Applied Physics and Electronics Umea University Umea 90187 Sweden Institute of Signal Processing and Transmission Nanjing University of Posts and Telecommunications Nanjing 210003 China

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