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The timely retrieval of remote sensing imagery by farmers and decision makers is very important for current agricultural activities. Through the various kinds of imageries of agricultural fields, people can conclude the status of the fields and figure out what kind of crops are suitable and how to cultivate and irrigate the fields. This paper demonstrates how to take advantage of open web service...
In previous studies, the correlation between the vegetation index and meteorological factors were investigated with in intervals defined by the day-of-year. Compared with the day-of-year, the accumulated growing degree days (AGDD) more effectively reflect vegetation growing stage, which serves as important references in agricultural management and disaster prediction. From this end, it is also worth...
WOFOST (WOrld FOod STudies) is a well-known, widely applied simulation model to analyze quantitatively the growth and production annual field crops that was originally developed for crops in European countries. It is the base model for Monitoring Agricultural ResourceS (MARS) Crop Growth Monitoring System (CGMS) in operational use for yield estimation in European Union. The model is of great potential...
Flood is defined as water that temporarily submerges land. In the United States, flood is being considered as an event only if it last over 72 hours, but the time frame is much longer in the Europe. The information of water bodies is an important source when examining floods. However, this data is not always available or accurate by traditional survey since water surface changes frequently. Remote...
Characterized by features of standards-based, platform-independent, portable, self-describing, and compact, GeoPackage, a new open format for geospatial information container, makes it much easier to manipulate geospatial data on mobile devices such as smartphones and tablets. In this paper, we present a GeoPackage based mobile application implementing Common Map API on both Google MapsTM and OpenLayers...
GeoPackage, an open format for geospatial information, provides a gateway to bridge agricultural geographic information and mobile devices such as smartphones and tablets. In this paper, we present a Cordova framework based GeoPackage mobile application to support field operations in agriculture. By implementing GeoPackage SDK on mobile application, GeoPackage files can be easily accessed, managed,...
The initial weights and thresholds of BP neural network are optimized by genetic algorithm in advance, and then the BP neural network is used in the prediction model of the postgraduate entrance examination results. Experimental results show that the optimized prediction model due to overcome the slow convergence speed and the defects of easy to produce local minimum has better accuracy than prediction...
Chromatography has been widely used in discrimination and quality control for Chinese medicines (CMs). Nevertheless, regular analytical approaches are not applicable if training samples are small while features are large. Support vector machine (SVM) with recursive feature elimination algorithm (RFE-SVM) is presented in this study for discrimination of Pericarpium Citri Reticulatae through small chromatographic...
A new multiple-gate poly-Si thin-film transistor (TFT) with a bottom field plate (FP) is proposed. The FP disperses the high current density away from the top corner of the spacer channel with the highest electric field, leading to an improved kink effect. Moreover, owing to an inversion layer induced by the FP at the bottom region of spacer poly-Si channel, a higher on-state current is achieved....
In recent years, more and more people are learning Chinese calligraphy, and for how to correctly brush pen and brush, the less people know about this. This topic combines the spatial point cloud data and gesture recognition technology, in view of the common brush pen gestures — five fingers penned method for the study of feature selection and extraction. Innovation point of this article is the gesture...
This work investigates the effects of GO RRAM w/ and w/o boron doping, and the effects of thermal annealing. From the experiment results, the B-doped GO RRAM annealed at 350°C shows the best performance with a higher resistance ratio of 4.15 orders and a higher dc switching cycles of 1300.
The cast austenitic stainless steel (CASS) is hard to be detected using general ultrasonic methods on account of the low signal to noise ratio (SNR) caused by coarse-grained structure. A numerical model based on electron backscattered diffraction (EBSD) was established to simulate the phased array ultrasonic imaging of CASS. Aiming to enhance SNR, the phase coherence imaging (PCI) technique was implemented...
In cloud environments, Intra-VM network traffic are out of the monitor traditional physical IDS. To enable the monitor of Intra-VM network traffic, we propose cIDS, a novel cluster-based intrusion detection framework for monitoring the network traffic of cloud environments. cIDS does not require the support of physical switches and Instead of using virtualized IDS to monitor virtual network traffic,...
Analyzing similarity of access control policies is very important in many application sceneries, for example, conducting similarity analysis to reduce policy scale in cloud services composition, or through similar policies to find cloud services which have same function. Existing methods of policy similarity analysis are mainly based on logical reasoning or Boolean function comparison, which are computationally...
With the development of distributed power, and based on the advanced ideas of FREEDM system (the Future Renewable Electric Energy Delivery and Management System), the Power electronic transformers has gained increasing importance in the future power distribution system. In this paper, Bidirectional DC-DC Converter topology used in the power electronic transformer is introduced, which can optimize...
To enhance the smart phones-automotive interconnect products experience pleasure, due to the fact that there is a few method to test and evaluate Human-Computer Interaction and user experience of the smart phone-automotive interconnect products, An evaluation method based on the user behavior / psychology on smart phone-automotive interconnect products was proposed, a series index system of evaluation...
The 2×2 wireless LAN (WLAN) + Bluetooth (BT) combo chip continues to be the most versatile product category in the wireless connectivity space. It finds usage in a wide range of applications, such as laptops, tablets, high-end smartphones, gaming consoles, set-top boxes, wireless routers and in-car/personal hot-spot devices. Digital-intensive SoCs have been relying on Moore's law to keep the cost...
High-performance phase-locked-loops (PLLs) are key building blocks for many modern ICs. The sub-sampling PLL proposed in [1] uses a reference clock REF to sample a high-frequency VCO and converts phase/timing error into voltage. The steep dv/dt slope of the VCO helps to realize a high phase-detection gain and greatly suppresses the noise of loop components succeeding the phase detector, leading to...
The seismic (especially collapse) of structure and casualties were always paid more attention to after the earthquake. A great deal of manpower and resource have been invested to prevent the failure of structure under severe earthquakes, and the seismic performance of structure was improved obviously. In contrast, the seismic damage of nonstructural system (such as ceiling system) was also severe...
The dynamic response of large space structures under accidental impact has been the subject of intense research since the occurrence of the 9/11 incident. In the present paper, events of aircraft impact to the single-layer kiewitt-8 reticulated dome were simulated by using the 3D ANSYS/LS-DYNA. Impact loadings were carried out respectively by the Riera force history method and by modeling a real plane...
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