User Random Access Technology Based on Beam Hopping Satellite Communication System by Zixuan HUANG, Jiaxi ZHOU, Jing ZHANG, Zhengyu ZHANG

“…On the basis of geosynchronous earth orbit multi-beam satellite communication systems, this paper designed the process of user random access to the network and specifi c signaling interaction under the agile beam mechanism, and proposed the scheduling strategy and allocation scheme of the agile signaling beam.This scheme increased the fl exibility of access resource allocation under the premised of ensured that all users could accessed the network, eff ectively improved the utilization rate of satellite network resources.The request of user access to the satellite communication network belongs to the burst type, it is more suitable to use the random competition access, so this paper based on the general random competition access strategy, proposed an adaptive random competition access algorithm based on the heat value, based on the heat value predicted by the network side, the user selects diff erent random access strategies for access.Through the simulation and analysis of the optimization algorithm, it is proved that the algorithm could eff ectively reduced the probability of access collision under various network loads, so as to achieved the purpose of users quickly accessing the network.…”
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Metastatic Colorectal Cancer Resembling Severe Preeclampsia in Pregnancy by Raminder Kaur Khangura, Charanpreet Kaur Khangura, Anagha Desai, Gregory Goyert, Roopina Sangha

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Climate Change and Sugarcane Production: Potential Impact and Mitigation Strategies by Duli Zhao, Yang-Rui Li

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Crop Management Practices and Labor Inputs for Hop Production in Florida by Shinsuke Agehara, Mariel Gallardo, Aleyda Acosta-Rangel, Zhanao Deng, Jack Rechcigl, Tianyuan Luo, Qi Qiu

“…It is part of a larger series that will review the challenges of hop production in Florida, based on research experience at the UF/IFAS Gulf Coast Research and Education Center in Balm, FL. This new 6-page publication of the UF/IFAS Horticultural Sciences Department was written by Shinsuke Agehara, Mariel Gallardo, Aleyda Acosta-Rangel, Zhanao Deng, Jack Rechcigl, Tianyuan Luo, and Qi Qiu. https://edis.ifas.ufl.edu/hs1409 …”
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An Efficient Collocation Method for a Class of Boundary Value Problems Arising in Mathematical Physics and Geometry by A. H. Bhrawy, A. S. Alofi, R. A. Van Gorder

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Variational analysis for simulating free-surface flows in a porous medium by Shabbir Ahmed, Charles Collins

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2 + 1 Highways: Overview and Future Directions by Manuel Romana, Marilo Martin-Gasulla, Ana T. Moreno

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Beam Hopping Beam Optimization and Resource Allocation Algorithm Based on Phased Array by Mengting HAO, Chen ZHANG, Gengxin ZHANG

“…Beam hopping technology can provide enough fl exibility and high resource utilization for satellite communication system, and shows good performance in broadband satellite communication system.However, the existing beam planning scheme of beam hopping technology is relatively fi xed and can not change with the change of service demand characteristics.For the situation of uneven distribution of user demand and scattered location, the advantages of beam hopping technology are diffi cult to play.To solve the above problems, a beam optimization method was proposed, which used the agility characteristics of phased array antenna to adjusted the size of beam according to the characteristics of service distribution, so as to made the service demand in each beam more balanced.On this basis, from the perspective of matching the demand with the actual transmission capacity, the minimization n-order diff erence objective function was established, the time slot resources allocated in each beam were solved by convex optimization algorithm, and the overall satisfaction and system delay of the system before and after beam optimization were compared.The simulation results showed that compared with the traditional beam planning scheme, the algorithm could improved the overall satisfaction of the system, reduced the system delay and improved the access success rate of the users.…”
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An Age-Structured Model of HIV Latent Infection with Two Transmission Routes: Analysis and Optimal Control by Chunyang Qin, Xia Wang, Libin Rong

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Successful Aging and Longevity in Older Old Women: The Role of Depression and Cognition by Daniel Paulson, Mary Elizabeth Bowen, Peter A. Lichtenberg

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Potted Poinsettia Production: Irrigation and Water Quality by Craig D. Stanley, Brent K. Harbaugh

“…This is document SL-212, a publication of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL. Published January 2004. https://edis.ifas.ufl.edu/ss431 …”
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The Heart-Placenta Axis in the First Month of Pregnancy: Induction and Prevention of Cardiovascular Birth Defects by Kersti K. Linask

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The Review of Beamforming Technology Based on Optical True Time Delay Line by Shiyi XIA, Guotong LI

“…The important role satellite communications plays in next-generation communication protocols brings both opportunities and challenges.Beamforming is an essential technology for effi cient and fl exible utilization of onboard resources.To explored a better beamforming technology, the optical control beamforming composed of the optical real-time delay line and the traditional analog beam were compared in principle.The phased array beamforming technology based on optical true time delay line meets the expectations of small size, lightweight, and low power in satellite communication.Phased arrays based on optical true delay lines could easily achieved no squint during beam scanning.The technical advantages and constraints of beamforming of optical real-time delay lines under diff erent technical paths were analyzed.For example, based on micro-ring resonator arrays, based on grating delay lines, based on multi-path switching and optical switches, and based on wavelength-selective optical true time delay lines.Finally, the research status of the existing optical beamforming technology was summarized.The possibility of realization in satellite interconnection was proposed, and its future development direction was predicted.…”
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Guidance for Processing Reduced Oxygen Packaged (ROP) of Raw, Frozen Seafood in Retail Operations by Keith R. Schneider, Victor Garrido, W. Steve Otwell, Ray Mobley

“…This document is FSHN05-04, one of a series of the Food Science and Human Nutrition Department, Florida Cooperative Extension Service, IFAS, University of Florida, Gainesville, FL 32611. Published: February 2005.  FSHN0504/FS112: Guidance for Processing Reduced Oxygen Packaged (ROP) of Raw, Frozen, Seafood in Retail Operations (ufl.edu) …”
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First Report of an Emerging Ulcerative Skin Disease in Invasive Lionfish by Holden Earl Harris, Alexander Q. Fogg, Roy P. Yanong, Salvatore Frasca Jr, Theresa Cody, Thomas B. Waltzek, William F. Patterson

“…Researchers and Extension Personnel (IFAS/SeaGrant) are asking stakeholders to report and document any ulcerated or otherwise diseased lionfish in FL and the Caribbean. …”
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Using Prospecting to Expand Your Customer Base by Kara DiNardo, Allen F. Wysocki

“…This is EDIS document SN012, a publication of the Department of Food and Resource Economics, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL. Published May 2003. SN012/SN012: Using Prospecting to Expand Your Customer Base (ufl.edu) …”
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Artificial Intelligence in Pediatric Electrocardiography: A Comprehensive Review by David M. Leone, Donnchadh O’Sullivan, Katia Bravo-Jaimes

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Traffic Prediction of Space-Integrated-Ground Information Network Based on Improved LSTM Algorithm by Chengsheng PAN, Yufu WANG, Li YANG

“…The space-integrated-ground information network is easy to interrupt and the traffi c fl uctuation is not stable due to the problems of high traffi c burst and topological time-varying, which makes the traffi c prediction diffi cult much higher than the ground.In order to solve this problem, an improved LSTM algorithm was put forward.Firstly, the traffi c autocorrelation was judged by analyzd the infl uence of the lag variable of traffi c sequence on the predicted value; Secondly, the noise and breakpoint of the training set were eliminated by replacing the interruption with the predicted value; Finally, Dropout algorithm was used to reduce the impact of noise and neural network over fi tting, and accurately predict the traffi c data of the integrated intelligent network.The simulation results showed that in OPNET simulation environment, compared with other algorithms, the accuracy of this algorithm was improved by 59.21%, and the training speed of the algorithm was improved by 11.11%, which could provide eff ective data support for the overall scheduling of the integrated intelligent network.…”
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Florida 4-H Poultry Record Book by Chris Decubellis, L. W. Kalch

“…Written by Chris Decubellis, dairy/animal sciences, 4-H state specialized agent, Florida 4-H Youth Development Program; UF/IFAS Extension, Gainesville, FL 32611. The original version of this record book was written by L. …”
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The Impact of Noise Models on Capacity Performance of Distribution Broadband over Power Lines Networks by Athanasios G. Lazaropoulos

“…Through the careful study of its results, it is demonstrated that during capacity computations of distribution BPL networks, the flat Additive White Gaussian Noise (FL noise model) can be comfortably assumed as an efficient noise model either in 3–30 MHz or in 3–88 MHz frequency range since its capacity differences with the other well-proven noise models are negligible.…”
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