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Yong Wang, Quanhou Dai, Pengwei Ding, Kuaifen Li, Xingsong Yi, Jie He, Xudong Peng, Youjin Yan, Min Zhao and Yingchong Yang
Nitrogen loss is the main reason for land quality degradation and productivity decline and an important factor in groundwater pollution. Extreme rainfall has occurred frequently in Karst areas of southwest China in recent years. It is of great significan...
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Chuanxing Du, Weiquan Fang, Dianlei Han, Xuegeng Chen and Xinzhong Wang
In order to reduce ground drop loss during mechanical pepper picking and improve the net recovery rate, a drum snap finger picking device was designed. The picking device is mainly composed of a picking drum and auxiliary picking components; the picking ...
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Robert D. McCauley, Mark G. Meekan and Miles J. G. Parsons
An experimental marine seismic source survey off the northwest Australian coast operated a 2600 cubic inch (41.6 l) airgun array, every 5.88 s, along six lines at a northern site and eight lines at a southern site. The airgun array was discharged 27,770 ...
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Yusuf Sudo Hadi, Elis Nina Herliyana, Desy Mulyosari, Imam Busyra Abdillah, Rohmah Pari and Salim Hiziroglu
In general fast-growing tree species harvested at a young age has substantial amount of sapwood. It also contains juvenile wood, which has undesirable inferior physical and mechanical properties. Having sapwood and juvenile wood in the trees makes them v...
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Shkelzen Cakaj,Bexhet Kamo
Pág. 264 - 271
Low Earth Orbit (LEO) satellites are used for public networking and for scientific purposes. Established satellite ground stations can communicate with LEO satellites only when the satellite is in their visibility region, since LEO satellites move too fa...
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Junshan Nie, Huizhong Luo, Yang Zhou, Qiqiang Li, Qingyu Qiu and Lihua Zhang
A synchronous-profiling, low-position-cutting, flexible-reel-belt-conveyor, low-loss soybean header was designed to address the problems of a lack of soybean harvesting machines supporting soybean-corn strip intercropping, the few existing soybean header...
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Villy Kontogianni and Stathis C. Stiros
Ground settlement above urban tunnels is a threat for nearby buildings, because it may lead to their differential settlement, tilting, and damage, depending on their structural characteristics, on ground conditions, and on the excavation procedure. Still...
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Tae-Hyeong Kim, Dae-Cheol Kim and Yongjin Cho
Two prototypes of small chili pepper harvesters that attach to walking cultivators were designed and manufactured before field performance tests were conducted. The two prototypes were designed and manufactured with different main frame materials, forms ...
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Niranjan Ravi and Mohamed El-Sharkawy
Three-dimensional object detection involves estimating the dimensions, orientations, and locations of 3D bounding boxes. Intersection of Union (IoU) loss measures the overlap between predicted 3D box and ground truth 3D bounding boxes. The localization t...
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Ha Duyen Trung
Recently, a combination of unmanned aerial vehicles (UAVs) and free-space optics (FSO) has been investigated as a potential method for high data-rate front-haul communication links. The aim of this work was to address the performance of UAV-to-ground sta...
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Shenming Qu, Huafei Zhou, Bo Zhang and Shengbin Liang
Extracting roads from remote sensing images can support a range of geo-information applications. However, it is challenging due to factors such as the complex distribution of ground objects and occlusion of buildings, trees, shadows, etc. Pixel-wise clas...
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Yongjun Wang, Tengping Jiang, Jing Liu, Xiaorui Li and Chong Liang
Individual tree segmentation is essential for many applications in city management and urban ecology. Light Detection and Ranging (LiDAR) system acquires accurate point clouds in a fast and environmentally-friendly manner, which enables single tree detec...
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Brennan Yamamoto, Allison Wong, Peter Joseph Agcanas, Kai Jones, Dominic Gaspar, Raymond Andrade and A Zachary Trimble
The effect of the maritime environment on radio frequency (RF) propagation is not well understood. In this work, we study the propagation of ad hoc 2.4 GHz and 5 GHz wireless local area network systems typically used for near-shore operation of unmanned ...
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Christos Pantos, Hanno Hildmann and João Valente
This study aims to explore the communication capabilities for video crucial applications of two commercial drones?the Parrot AR.Drone 2.0 and the Parrot Anafi?in a greenhouse environment. Experiments were conducted on Received Signal Strength (RSS), Roun...
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Zhimeng Zhao and Qinghe Wang
Preferential flow is the most common form of water loss occurring at the interface between rock and soil (hereinafter referred to as ?rock?soil interface?) in karst areas, and it is also one of the important factors causing soil water leakage into the un...
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Chunsen Zhang, Shu Shi, Yingwei Ge, Hengheng Liu and Weihong Cui
The digital elevation model (DEM) generates a digital simulation of ground terrain in a certain range with the usage of 3D point cloud data. It is an important source of spatial modeling information. Due to various reasons, however, the generated DEM has...
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Chris Richter, Sascha Kraus, Ricarda B. Bouncken
Virtual currencies have been well-cited and well-discussed in the near past. Due to the loss of trust in the banking sector and the fear of loss of capital, low interest rates and uncertainty of existing currencies, the ground for a virtual currency was ...
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Xiaowu Liu, Xihan Xu and Kan Yu
Ultra-reliable and low-latency communications (uRLLC) has received great attention in the study of wireless communication for it can provide high network performance in terms of reliability and latency. However, the reliability requirements of uRLLC requ...
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Jeb S. Fields, James S. Owen, Jr., Alexa Lamm, James Altland, Brian Jackson, Lorence Oki, Jayesh B. Samtani, Youbin Zheng and Kristopher S. Criscione
Many specialty crop growers are transitioning high-value crops from in-ground production to soilless culture due to the diminishing availability of fumigants, increasing pest pressure, extreme weather, and the need for flexible production practices. The ...
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Syed Zafar Abbas Mehdi, Aiffah Mohd Ali and Safiah Zulkifli
One of the challenges of the Internet of Things (IoT) is to provide connectivity to devices around the globe. Long Range (LoRa) is one of the most practical technologies due to its low-power and long-range capabilities to be used by the Low Earth Orbit (...
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