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Copyright of Journal of Computer Engineering & Applications is the property of Beijing Journal of Computer Engineering & Applications Journal Co Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Forest Products Industry is the property of China Forest Products Industry Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Agricultural Archaeology is the property of Agricultural Archaeology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Architectural Journal / Jian Zhu Xue Bao is the property of Architectural Journal Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Nuclear Safety is the property of Nuclear & Radiation Safety Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Rolling Stock (1002-7602) is the property of Rolling Stock Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Automobile Technology is the property of Automobile Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Natural Gas Industry is the property of Natural Gas Industry Journal Agency and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Power Generation Technology is the property of Power Generation Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The offshore wind power facilities are located in the harsh marine corrosion environment, which puts forward higher requirements for anticorrosive coatings. At present, the anticorrosive coatings for offshore wind power facilities are produced by foreign companies. It is very necessary carry out the research on the localization of the protective coating system for offshore wind power facilities. In this paper, based on the longlasting anticorrosion and other related performance requirements of offshore wind power, the domestic heavy-duty anticorrosive coatings are used to carry out related supporting design, performance evaluation and on-site coating application research, which is useful for further large-scale application. [ABSTRACT FROM AUTHOR]

Copyright of Rolling Stock (1002-7602) is the property of Rolling Stock Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Control Theory & Applications / Kongzhi Lilun Yu Yinyong is the property of Editorial Department of Control Theory & Applications and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chongqing University of Technology (Natural Science) is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Control Theory & Applications / Kongzhi Lilun Yu Yinyong is the property of Editorial Department of Control Theory & Applications and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper proposed an improved unscented Kalman filter(UKF) mobile robot localization algorithm based on Sage-Husa filter to solve the problem of low localization accuracy caused by unknown or inaccurate noise statistical characteristics in multi-sensor fusion localization process. Firstly, it established the mobile robot localization model. Then, according to the time-varying characteristics of noise statistics, this article adaptively estimated the state noise and measurement noise to reduce the error of position calculation caused by perturbation noise. The paper also introduced the convergence factor in the state update to accelerate the convergence speed of the algorithm. Finally, the UKF algorithm and the improved UKF algorithm are applied to the laboratory mobile robot for simulation experiments. The experimental results show that the proposed algorithm has strong resistance to state disturbance, and has remarkable effect on improving the accuracy and stability of robot positioning. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Education Research (1680-6360) is the property of Angle Publishing Co., Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chengdu University (Social Science) is the property of Journal of Chengdu University (Social Science Edition) Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Computer Measurement & Control is the property of Magazine Agency of Computer Measurement & Control and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of New Architecture is the property of New Architecture Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

After Buddhism was transmitted to Tibet, it became localized and absorbed various religious and cultural elements. Subsequently, when Tibetan Buddhism was transmitted to different countries and regions, it again became fused with local customs and beliefs, to form diverse types of Tibetan Buddhism. The object of this research is the Intermediate-state ritual regularly held for the deceased at Nona Hwatsang Center which belongs to the rNying ma lineage, which combines Chinese Buddhist doctrines with Tibetan Buddhist methods, and incorporates the form of religious activity of Han people. Past research on the Chanting-Service Ritual focuses on discussing religious thought and hospice care. This paper discusses how the perception is dynamically constructed and destroyed during the intermediate state by "incurving" the three-time sound and images in the ritual. The distinctive part of the Intermediate-state ritual is the gurus with high authority performing religious functions through playing the dead gurus' videos. The videos are used to imitate and present the sounds and images so that they might be heard and seen during the intermediate state, as instructed by the authoritative scriptures. In addition, the lay group guides the deceased's consciousness to dynamically perceive the sounds and images from the perspective of the Threefold Contemplation for self-liberating. Furthermore, in this research, Gilles Deleuze's theoretical structure of images is adopted to discuss the individual perceptions constructed dynamically through the interaction among various elements and karma during an individual's life. However, the deceased should realize the common perception of Buddha nature, which is constructed in Buddhist doctrines and has the effect of destroying the individual perceptions, and the mind's journey to the Pure Land. [ABSTRACT FROM AUTHOR]

Copyright of Rolling Stock (1002-7602) is the property of Rolling Stock Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Harbour Engineering is the property of Editorial Office of China Harbour Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The technological innovation of emerging industries is the key field of regional competition, the impact of the rapid development of regional innovation integration on localization is a question that economic geographers need to answer. Taking the new material industry in the Yangtze River Delta as an example, this paper obtains the data of invention patents from Incopat patent service website, and explores the relationship between regional innovation integration and localization in cooperative R & D and patent transfer network from 2000 to 2017. The main conclusions are as follows: (1) In terms of spatial structure, the degree of regional integration in the two networks is highly related to the spatial pattern of localization, and both of them present a "core periphery" structure centered on the "Z" shaped region composed of "Hefei - Nanjing - Shanghai - Hangzhou - Ningbo". (2) The degree of regional innovation integration can promote the strength of local network, but there is a significant positive "U" relationship between integration and localization. On the one hand, it affirms that the regional innovation integration has positive significance for the improvement of regional overall innovation ability. On the other hand, it shows that the role of de-localization is dominant in the early regional innovation integration. But after a certain degree, the process of high-quality integration can force the local network to accelerate the development, and the regions with high degree of integration can take the lead in exerting the siphon effect and utilizing external resources to promote the process of re-localization. (3) The process of regional innovation integration is an interwoven process of de-localization and re-localization. It is crucial for local governments to reshape local networks and local characteristics with the help of integration forces. [ABSTRACT FROM AUTHOR]

Copyright of Natural Gas & Oil is the property of Editorial Department of Natural Gas & Oil and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Oil Drilling & Production Technology / Shiyou Zuancai Gongyi is the property of Shiyou Zuancai Gongyi Bianjibu and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper not only studies the heterogeneous environment for oriented server, charging terminal, airborne terminal, fire terminal and handheld terminal; but also analyzes the construction requirements of army domain command information system software platform. On this basis, the command information system is developed independently, which supports key technologies such as cross-platform software development/operation/integration, multi-scene operation, multi-mode adaptive human-computer interaction and cross-platform service development and integration. In addition, heterogeneous hardware platform integration, adaptive optimization, software runtime and cross-platform middleware integration optimization are also studied. Finally, it provides basic support for heterogeneous software integration and deployment, cross-platform cooperative operation and flexible application in multiple scenarios to land force command information system. [ABSTRACT FROM AUTHOR]

Copyright of Information & Control is the property of Gai Kan Bian Wei Hui and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Clean Coal Technology is the property of Clean Coal Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Wool Textile Journal is the property of National Wool Textile Science & Technology Information Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

[Objective] Part of oil and gas pipelines in China, which have been in operation for a long time, are facing problems such as the lack of specific geographic information and deviation of the pipeline from the designed laying location. However, traditional pipeline localization methods possess limitations of significant cumulative errors and low accuracy. [Methods] To enhance the precision of oil and gas pipeline localization, a new method was proposed based on improved Unscented Kalman Filter(UKF) algorithm. The primary equipment,which is an inertial measurement unit consisting of a gyroscope and an accelerometer, supplemented by a wheel odometer and ground markers as auxiliary locator devices was utilized in this method. The attitude, velocity, and position errors of the pipeline detector were taken as state variables, and the speed of the wheel odometer and attitude information obtained from the solution of accelerometer data were taken as observables, to establish a nonlinear error propagation model of strap-down inertial navigation system. An improved UKF algorithm was employed to estimate the error transfer model for reducing the impact of noise on localization accuracy. The angular velocity and acceleration information were corrected by combining forward-backward smoothing filter method and straight and curved pipe identification method,to further reduce cumulative errors in the system solution process. [Results] Numerical simulations and physical experiments revealed that the proposed oil and gas pipeline localization system has significantly reduced cumulative errors in locating long-distance pipelines. The maximum error in determining the specific location of oil and gas pipelines was found to be 0.56%. The UKF algorithm, which was proposed in this paper, showed a locating accuracy level of approximately 34.2% higher compared to the traditional Kalman Filter(KF) algorithm and 30.2% higher compared to the UKF algorithm under constant testing conditions. [Conclusion] The proposed oil and gas pipeline locating method based on an improved UKF presents high practical value for long-distance pipeline localization as it has lower cumulative errors in the system solution process and higher accuracy in pipeline localization.

Copyright of Journal of Education Research (1680-6360) is the property of Angle Publishing Co., Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to reduce the positioning error bring for non line-of-sight transmission, this paper put forward a mine ultra-wideband positioning method based on non line-of-sight identification weighted fitting. This method, first of all, non line-of-sight be identified, the principle of the method is to compare the degree of close between the PDF (Probability Distribution Function) under the condition of LOS (Line of Sight) and the PDF of distance measurement value, and the close degree of both will be used to determine the non line-of-sight weighted factor, the weighting factor reflects the proportion of the NLOS (Non Line of Sight) and LOS reference nodes in the position estimation process, then put forward a new weighted factor least square method localization method, through the simulation experiment to verify the method in this paper, the experimental results show that this method can achieve high precision. [ABSTRACT FROM AUTHOR]

From the 1980s onward, modern Chinese poetry has gained in popularity. Modern poetics from the 1940s, however, has yet to receive a thorough treatment. This is due, in part, to the unavailability of source materials. Through the use of recently-discovered reference materials, this paper intends to conduct an in-depth exploration of modern poetics in China during the 1940s. By contextualizing the competing poetical discourses, this paper investigates three trends found in this period: the change of subject matter, the pursuit of crafts, and the reform of lyric modes. The ultimate aim is to bring renewed life to the scholarship on poetics from this period and to open a new critical dimension for the study of modern Chinese poetry. [ABSTRACT FROM AUTHOR]

With the continuous emergence of network and information security challenges, international trade frictions and other issues, the demand for localization, independence and controllability of products is becoming more and more intense. As a result, domestic hardware and software solutions will be gradually adopted to replace foreign solutions for the key control system in the field of rail transit. This paper briefly describes the architecture of the domestic traction and network control system for the standardized subway platform, and focuses on the selection of the hardware and software, such as CPUs, embedded operating systems and graphical development software. It also details the hardware scheme, software structure, and migration and adaptation process of the software and hardware for the traction and network control system, and makes a comparative analysis on the functions and performances of the domestic operating system and VxWorks. Through a series of software functional tests such as verification of traction/electric braking characteristics and networking, conclusions are drawn that the domestic traction and network control system features excellent performance parameters, stable and reliable operation, normal traction/electric braking characteristics, network delay of the system in microseconds, and jitter of the sub-microsecond level, which meet the requirements of the standardized subway platform, and therefore it can be used for 100% localization as an equivalent substitute.

In the context of an aging population, the promotion of time banking as a new model of voluntary service can help alleviate the ever–increasing pressures for elderly care and services in China. The development of time banking in China has successively undergone the stage of traditional practice, the stage of infancy and exploration, as well as the stage of accelerated growth. Meanwhile, this process has also witnessed the formation of many localized innovations. To further the localization and innovation of time banking, this paper analyzes its basis in traditional culture, summarizes its process of practice and explores new directions of future innovation. Based on the summary of existing problems, this paper proposes to enhance the recognition of time banking among the public, facilitate localized innovation of time banking, promote its informatization, and involve the participation of young people, particularly college students.

In order to improve the accuracy of node localization in wireless sensor networks, this paper proposed a cooperative filtering localization algorithm(CFLA). This algorithm generated two candidate nodes when the unknown node was localized with two beacon nodes. In order to determine the candidate nodes with high accuracy, it considered two cooperative filtering models. In the first model, it selected a reasonable reference node, and filtered the candidate nodes by comparing the cooperation between the reference node and the unknown node. In the second model, it filtered the high accuracy candidate nodes comparing the distance of two unknown nodes with the Euclidean distance of their candidate nodes. Simulation results show that CFLA algorithm consumes less power than SL-n and RAMP algorithms when the network environment is the same. When there are 8% beacon nodes, the CFLA algorithm reduces the localization error by 14. 7% and 9. 6% compared to the SL-n algorithm and the RAMP algorithm, respectively, which improves localization accuracy effectively. [ABSTRACT FROM AUTHOR]

Odometry has error accumulation during the running of wheeled mobile robot, systematic error is possible decrease by calibrating system parameters. According to the shortcomings of Ine UMBmark method, this paper proposed a systematic error calibration method. The method considered the coupled effect of three main system errors, at the same time it used the final orientation errors to replace the positional errors. The experimental results show that the positioning accuracy of mobile robot can be improved by the proposed methods. [ABSTRACT FROM AUTHOR]

This paper proposed a localization algorithm of the group-mobility nodes based on mobility parameters prediction.This algorithm aimed to solve the bad universality of other localization algorithms of group-mobility nodes,which were based on some unpractical hypothesizes.First,according to the similar move pattern of the group-mobility nodes,it used Hermite interpolating polynomials to predict and filtrate the mobility parameters of the group-mobility nodes.Due to the variational network topology caused by the mobility of nodes,the valid sampling areas were changing all the time.To solve the proplem,the valid sampling areas could be confirmed based on the predicted mobility parameters.This measure aimed to keep a high precision of the proposed algorithm.Besides,it calculated the least numbers of sampled particles of different sampling areas according to the Kullback-Leibler distence (KLD)between the real distribution of the sampled particles and its maximum likehhood estimation.This measure aimed to reduce the time expenditure of the proposed algorithm.Then it selected high quality particles for the following position estimation,according to the filter formulation designed by the predicted mobility parameters.This measure could improve the convergence of the algorithm.Finally,comparative experiments were made in MATLAB.It analyzed the effects of the main factors on the localization precision.The main factors contained the velocities of the group-mobility nodes,the freedom degree of the group-mobility nodes,the threshold value of the KLD and the size length of the sampling gird.Experiment results show that the proposed algorithm without any assistant localization measures is a good localization method of group-mobility nodes,which has a smaller time expenditure and higher precision than classical Monte Carlo localization(MCL) method and weighted least square(MLS) method. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Zhejiang University. Humanities & Social Sciences / Zhejiang Daxue Xuebao is the property of Zhejiang University Press and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This paper not only studies the heterogeneous environment for oriented server, charging terminal, airborne terminal, fire terminal and handheld terminal; but also analyzes the construction requirements of army domain command information system software platform. On this basis, the command information system is developed independently, which supports key technologies such as cross-platform software development/operation/integration, multi-scene operation, multi-mode adaptive human-computer interaction and cross-platform service development and integration. In addition, heterogeneous hardware platform integration, adaptive optimization, software runtime and cross-platform middleware integration optimization are also studied. Finally, it provides basic support for heterogeneous software integration and deployment, cross-platform cooperative operation and flexible application in multiple scenarios to land force command information system.

Copyright of Journal of Capital Institute of Physical Education is the property of Shoudu Tiyu Xueyuan and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Pulp & Paper is the property of China Pulp & Paper Magazines Publisher and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Many wireless positioning applications speculate the angle of arrival (AOA) through spinning the directional antenna. However, the positional accuracy of this method in sparse sample and flexible environment is not very high. In the lobe curve reduction experiment of the directional antenna, it is found that the lobe curve nearby the maximum received signal strength (RSS) is similar to the curve of the second degree. Depending on this fact,this paper put forward the AOA positioning algorithm fitting based on RSS curve of the second degree, which fitted the quadratic curve equation with the data nearby the maximum RSS and estimated AOA with the maximum and minimum points of the curvilinear equation. The experimental result indicates that: this algorithm can keep good positioning precision in sparse sample and flexible environment,and the average angle and position error of experiments in real environment are 2. 5 degrees and 0. 28 m respectively. Comparing with RAL positioning algorithm, both the angle and position precision are increased by 70%. [ABSTRACT FROM AUTHOR]

In the localization system of wireless sensor networks, due to differences in quality control and external environment, empirical value of attenuation model cannot meet the current environment, the result may lead to low positioning accuracy and non-repeatable experiment. In this paper, the parameters of the model are fitted by the least square method , according to the reference nodes which send messages mutually close to the nodes to be located. All the reference nodes are sorted by their RSSI values, and the three nodes with the smallest RSSI values are selected to calculate the coordinates of the nodes to be located. Finally, a prototype system is designed and implemented for localization based on protocol stack of ZStack. Further simplifying algorithm greatly reduces model parameter inaccuracies on positioning accuracy, it provides the foundation for further research. [ABSTRACT FROM AUTHOR]

According to problem of low accuracy in traditional mobile robot localization, this paper designed the discrete HuberM-CKalmam filter (HCKF) based mobile robot positioning algorithm. It made use of the cost function of HurbM maximum likelihood estimation to solve the linearized CKF observation matrix, which improved the estimation accuracy for CKF filter algorithm with unknown-non-Gauss white noise disturbance. Then, it constructed WSNs based experiment environment for mobile robot at gymnasium, and combined with mobile robot dynamics model, it compared the positioning accuracy for the HCKF and the CKF algorithm. The results show that, for the two cases of non interference and unknown noise interference, the proposed method respectively improves the accuracy of HCKF algorithm about 7% and 15% more than CKF algorithm. [ABSTRACT FROM AUTHOR]

Copyright of Ziran Kexueshi Yanjiu (Studies in the History of Natural Sciences) is the property of Chinese Academy of Sciences and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Most existing human action recognition approaches require a large amount training data or MoCAP to handle multiple viewpoints, and often rely on clean actor silhouettes. The paper presents an approach to recognize single actor human actions in complex backgrounds. The method tracks the actor pose by sampling from 3D action models. The action models in our approach are obtained by annotating key poses in 2D, lifting them to 3D stick figures and then computing the transformation matrices between the 3D key pose figures. In addition, poses sampled from coarse action models may not fit the observations well, to overcome this difficulty, we propose an approach for efficiently localizing a pose by generating a pose-specific part model (PSPM), which captures appropriate kinematic and occlusion constraints in a tree-structure. In addition, our approach does not require pose silhouettes. We show improvements to previous results on two publicly available datasets as well as on a novel, augmented dataset with dynamic backgrounds. [ABSTRACT FROM AUTHOR]

Underwater acoustic sensor network has characteristics of long transmission delay, lower data rate, high transmission loss. These characteristics affect the transmission efficiency of the existing positioning algorithm. Aiming at the deficiency, this paper proposes an improved localization packets transmission scheme of the anchor. After knowing the relative positions of the anchors and their maximum transmission range,we firstly analyze the collision free packet transmission conditions, and then define the positioning task time minimization problem, and prove that the optimal solutions can be obtained. On this basis, we propose two low complexity algorithms based on scheduling. Finally, several simulation experiments are conducted to compare the performance of the improved algorithm with the current underwater MAC protocol OCSMA and the traditional time slot method. Experimental results show that the performance of the proposed algorithm is quasi-optimal, and it is better than other current algorithms such as TDMA and OCSMA. [ABSTRACT FROM AUTHOR]