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GROWTH ESTIMATES FOR SINE-TYPE-FUNCTIONS AND APPLICATIONS TO RIESZ BASES OF EXPONENTIALS
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作者 Alexander M. Lindner (Technische Universitat Munchen, Germany) 《Approximation Theory and Its Applications》 2002年第3期26-41,共16页
We present explicit estimates for the growth of sine-type-functions as well as for the derivatives at their zero sets, thus obtaining explicit constants in a result of Levin. The estimates are then used to derive expl... We present explicit estimates for the growth of sine-type-functions as well as for the derivatives at their zero sets, thus obtaining explicit constants in a result of Levin. The estimates are then used to derive explicit lower bounds for exponential Riesz bases, as they arise in Avdonin's Theorem on 1/4 in the mean or in a Theorem, of Bogmtr, Horvath, Job and Seip. An application is discussed, where knowledge of explicit lower bounds of exponential Riese bases is desirable. 展开更多
关键词 GROWTH ESTIMATES FOR SINE-TYPE-FUNCTIONS AND applicationS TO RIESZ bases of EXPONENTIALS
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Effects of Reducing Application Amount of Base Fertilizer and Increasing Application Time of Leaf Fertilizer on Corn Yield 被引量:4
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作者 李蒙蒙 刘朝 《Agricultural Science & Technology》 CAS 2015年第5期947-950,共4页
This study aimed to investigate the effects of reducing application amount of base fertilizer and increasing application time of leaf fertilizer on corn yield so as to find out the most economical fertilization way fo... This study aimed to investigate the effects of reducing application amount of base fertilizer and increasing application time of leaf fertilizer on corn yield so as to find out the most economical fertilization way for corn. On the basis of protecting environment, the economic benefits will be also increased. The results showed that the corn yield was increased with the increase of application amount of base fertilizer, and was also increased with the increase of application time of leaf fertilizer.For each time of spaying of leaf fertilizer, the corn yield was increased 258-592.5kg/hm^2 with increase amplitude ranging from 2.3%-5.6%. 展开更多
关键词 CORN application amount of base fertilizer Spraying time of leaf fertilizer YIELD Economic benefits
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Optimization Model: Resource Distribution for Risk Factors of Type 2 Diabetes Prevention
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作者 Kanika Misra 《Open Journal of Optimization》 2023年第1期1-9,共9页
Type 2 Diabetes, a lifestyle disease, can be prevented/delayed by adopting a healthy lifestyle. Awareness of the same amongst the citizens can be one of the best ways to initiate a decline in the positive census of th... Type 2 Diabetes, a lifestyle disease, can be prevented/delayed by adopting a healthy lifestyle. Awareness of the same amongst the citizens can be one of the best ways to initiate a decline in the positive census of the disease. We use this paper to illustrate an optimization model where the budget can be distributed based on the census data of the risk factors involved. It uses a non-linear programming model and can easily be modified into a linear one. The alternative options and constraints too, are mentioned in the paper. The results show that the mid-western states need more share of the allocation based on risk factors. The model distributes the percentage of the budget allocated to different states based on a fixed risk factor constraint. 展开更多
关键词 Optimization ALGORITHMS application Based Solution DIABETES RESOURCES SOLVER Excel Objective Function
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Artificial Neural Network Method Based on Expert Knowledge and Its Application to Quantitative Identification of Potential Seismic Sources
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作者 Hu Yinlei and Zhang YumingInstitute of Geology,SSB,Beijing 100029,China 《Earthquake Research in China》 1997年第2期64-72,共9页
In this paper,an approach is developed to optimize the quality of the training samples in the conventional Artificial Neural Network(ANN)by incorporating expert knowledge in the means of constructing expert-rule sampl... In this paper,an approach is developed to optimize the quality of the training samples in the conventional Artificial Neural Network(ANN)by incorporating expert knowledge in the means of constructing expert-rule samples from rules in an expert system,and through training by using these samples,an ANN based on expert-knowledge is further developed.The method is introduced into the field of quantitative identification of potential seismic sources on the basis of the rules in an expert system.Then it is applied to the quantitative identification of the potential seismic sources in Beijing and its adjacent area.The result indicates that the expert rule based on ANN method can well incorporate and represent the expert knowledge in the rules in an expert system,and the quality of the samples and the efficiency of training and the accuracy of the result are optimized. 展开更多
关键词 Artificial Neural Network Method Based on Expert Knowledge and Its application to Quantitative Identification of Potential Seismic Sources LENGTH
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Data Transfer Over the Internet for Real Time Applications 被引量:3
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作者 Roger Knott 《International Journal of Automation and computing》 EI 2006年第4期414-424,共11页
Efficient real time data exchange over the Internet plays a crucial role in the successful application of web-based systems. In this paper, a data transfer mechanism over the Internet is proposed for real time web bas... Efficient real time data exchange over the Internet plays a crucial role in the successful application of web-based systems. In this paper, a data transfer mechanism over the Internet is proposed for real time web based applications. The mechanism incorporates the eXtensible Markup Language (XML) and Hierarchical Data Format (HDF) to provide a flexible and efficient data format. Heterogeneous transfer data is classified into light and heavy data, which are stored using XML and HDF respectively; the HDF data format is then mapped to Java Document Object Model (JDOM) objects in XML in the Java environment. These JDOM data objects are sent across computer networks with the support of the Java Remote Method Invocation (RMI) data transfer infrastructure. Client's defined data priority levels are implemented in RMI, which guides a server to transfer data objects at different priorities. A remote monitoring system for an industrial reactor process simulator is used as a case study to illustrate the proposed data transfer mechanism. 展开更多
关键词 eXtensible Markup Language (XML) Hierarchical Data Format (HDF) Remote Method Invocation (RMI) data transfer web based application and real time
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A Comprehensive Method for Evaluating Precision of Transfer Alignment on a Moving Base 被引量:2
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作者 Hongliang Yin Bo Xu Dezheng Liu 《Journal of Marine Science and Application》 CSCD 2017年第3期344-351,共8页
In this study, we propose the use of the Degree of Alignment(DOA) in engineering applications for evaluating the precision of and identifying the transfer alignment on a moving base. First, we derive the statistical f... In this study, we propose the use of the Degree of Alignment(DOA) in engineering applications for evaluating the precision of and identifying the transfer alignment on a moving base. First, we derive the statistical formula on the basis of estimations. Next, we design a scheme for evaluating the transfer alignment on a moving base, for which the attitude error cannot be directly measured. Then, we build a mathematic estimation model and discuss Fixed Point Smoothing(FPS), Returns to Scale(RTS), Inverted Sequence Recursive Estimation(ISRE), and Kalman filter estimation methods, which can be used when evaluating alignment accuracy. Our theoretical calculations and simulated analyses show that the DOA reflects not only the alignment time and accuracy but also differences in the maneuver schemes, and is suitable for use as an integrated evaluation index. Furthermore, all four of these algorithms can be used to identify the transfer alignment and evaluate its accuracy. We recommend RTS in particular for engineering applications. Generalized DOAs should be calculated according to the tactical requirements. 展开更多
关键词 transfer alignment precision assessment degree of alignment Kalman smoothing returns to scale moving base engineering applications comprehensive method
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Multibeam Antenna Based on Butler Matrix for 3G/LTE/5G/B5G Base Station Applications 被引量:1
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作者 YE Lianghua CAO Yunfei ZHANG Xiuyin 《ZTE Communications》 2020年第3期12-19,共8页
With the rapid development of mobile communication technology and the explosion of data traffic,high capacity communication with high data transmission rate is urgently needed in densely populated areas.Since multibea... With the rapid development of mobile communication technology and the explosion of data traffic,high capacity communication with high data transmission rate is urgently needed in densely populated areas.Since multibeam antennas are able to increase the communication capacity and support a high data transmission rate,they have attracted a lot of research interest and have been actively investigated for base station applications.In addition,since multi-beam antennas based on Butler matrix(MABBMs)have the advantages of high gain,easy design and low profile,they are suitable for base station applications.The purposes of this paper is to provide an overview of the existing MABBMs.The specifications,principles of operation,design method and implementation of MABBMs are presented.The challenge of MABBMs for 3G/LTE/5G/B5G base station applications is discussed in the end. 展开更多
关键词 multi-beam antenna base station application Butler matrix wideband antenna multi-band antenna
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Nanfang Bedroom Necessities Becomes China Color Application Pilot Base
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《China Textile》 2008年第8期16-17,共2页
On June 21, the presentation ceremony for China Home textile Color Application Pilot Base took place in Rui’an Municipal Conference Center of Zhejiang province. Distinguish guests, like Mr. Yang Donghui, Vice Preside... On June 21, the presentation ceremony for China Home textile Color Application Pilot Base took place in Rui’an Municipal Conference Center of Zhejiang province. Distinguish guests, like Mr. Yang Donghui, Vice President of China National Textile and 展开更多
关键词 Nanfang Bedroom Necessities Becomes China Color application Pilot Base
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Radar false alarm plots elimination based on multi-feature extraction and classification
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作者 Cheng Yi Zhao Yan Yin Peiwen 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2024年第1期83-92,共10页
Caused by the environment clutter,the radar false alarm plots are unavoidable.Suppressing false alarm points has always been a key issue in Radar plots procession.In this paper,a radar false alarm plots elimination me... Caused by the environment clutter,the radar false alarm plots are unavoidable.Suppressing false alarm points has always been a key issue in Radar plots procession.In this paper,a radar false alarm plots elimination method based on multi-feature extraction and classification is proposed to effectively eliminate false alarm plots.Firstly,the density based spatial clustering of applications with noise(DBSCAN)algorithm is used to cluster the radar echo data processed by constant false-alarm rate(CFAR).The multi-features including the scale features,time domain features and transform domain features are extracted.Secondly,a feature evaluation method combining pearson correlation coefficient(PCC)and entropy weight method(EWM)is proposed to evaluate interrelation among features,effective feature combination sets are selected as inputs of the classifier.Finally,False alarm plots classified as clutters are eliminated.The experimental results show that proposed method can eliminate about 90%false alarm plots with less target loss rate. 展开更多
关键词 radar plots elimination density based spatial clustering of applications with noise multi-feature extraction CLASSIFIER
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High-sensitivity integrated devices based on surface plasmon resonance for sensing applications 被引量:3
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作者 MAHMOUD H.ELSHORBAGY ALEXER CUADRADO JAVIER ALDA 《Photonics Research》 SCIE EI 2017年第6期173-180,共8页
A metallic nanostructured array that scatters radiation toward a thin metallic layer generates surface plasmon resonances for normally incident light. The location of the minimum of the spectral reflectivity serves to... A metallic nanostructured array that scatters radiation toward a thin metallic layer generates surface plasmon resonances for normally incident light. The location of the minimum of the spectral reflectivity serves to detect changes in the index of refraction of the medium under analysis. The normal incidence operation eases its integration with optical fibers. The geometry of the arrangement and the material selection are changed to optimize some performance parameters as sensitivity, figure of merit, field enhancement, and spectral width. This optimization takes into account the feasibility of the fabrication. The evaluated results of sensitivity(1020 nm/RIU)and figure of merit(614 RIU^(-1)) are competitive with those previously reported. 展开更多
关键词 High-sensitivity integrated devices based on surface plasmon resonance for sensing applications
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Reaction Torque Control of Redundant Free-floating Space Robot
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作者 Ming-He Jin Cheng Zhou +2 位作者 Ye-Chao Liu Zi-Qi Liu Hong Liu 《International Journal of Automation and computing》 EI CSCD 2017年第3期295-306,共12页
This paper presents the reaction torque based satellite base reactionless control or base disturbance minimization of a redundant free-floating space robot. This subject is of vital importance in the study of the free... This paper presents the reaction torque based satellite base reactionless control or base disturbance minimization of a redundant free-floating space robot. This subject is of vital importance in the study of the free-floating space robot because the base disturbance minimization will result in less energy consumption and prolonged control application. The analytical formulation of the reaction torque is derived in this article, and the reaction torque control can achieve reactionless control and satellite base disturbance minimization. Furthermore, we derive the reaction torque based control of the space robot for base disturbance minimization from both the non-strict task priority and strict task priority control strategy. The dynamics singularity in the proposed algorithm is avoided in this paper. Besides, a real time simulation system of the space robot under Linux/real time application interface(RTAI) is developed to verify and test the feasibility and reliability of the method. The experimental results demonstrate the feasibility of online reaction torque control of the redundant free-floating space robot. 展开更多
关键词 Redundant space robot reaction torque reactionless control base disturbance minimization Linux/real time application interface(RTAI)
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A Scalable Testing Framework for Location-Based Services 被引量:1
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作者 Jiang Yu Andrew Tappenden +1 位作者 James Miller Michael Smith 《Journal of Computer Science & Technology》 SCIE EI CSCD 2009年第2期386-404,共19页
A novel testing framework for location based services is introduced. In particular, the paper showcases a novel architecture for such a framework. The implementation of the framework illustrates both the functionality... A novel testing framework for location based services is introduced. In particular, the paper showcases a novel architecture for such a framework. The implementation of the framework illustrates both the functionality and the feasibility of the framework proposed and the utility of the architecture. The new framework is evaluated through comparison to several other methodologies currently available for the testing of location-based applications. A case study is presented in which the testing framework was applied to a typical mobile service tracking system. It is concluded that the proposed testing framework achieves the best coverage of the entire location based service testing problem of the currently available methodologies; being equipped to test the widest array of application attributes and allowing for the automation of testing activities. 展开更多
关键词 location based applications location-based services M-COMMERCE software testing
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