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UW team shatters long-range communication barrier for devices that consume almost no power（图）
UW team shatters long-range communication barrier consume almost no power
2017/9/20
University of Washington researchers have demonstrated for the first time that devices that run on almost zero power can transmit data across distances of up to 2.8 kilometers — breaking a long-held b...
DROUGHT FORECASTING BASED ON MACHINE LEARNING OF REMOTE SENSING AND LONG-RANGE FORECAST DATA
Drought Forecasting Machine learning Long-range forecast Remote sensing data
2016/11/30
The reduction of drought impacts may be achieved through sustainable drought management and proactive measures against drought disaster. Accurate and timely provision of drought information is essenti...
Monitoring Landslide Displacements during a Controlled Rain Experiment Using a Long-Range Terrestrial Laser Scanning (TLS)
Remote sensing landslide Laser scanning
2015/12/16
A controlled rain experiment has been performed on the Super-Sauze mudslide (South French Alps) in order to better understand the
hydrology and mechanics of such type of landslides. The rainfall expe...
Glacier Velocity Determination from Multi-Temporal Long Range Laser Scanner Point Clouds
Motion analysis glaciology LIDAR sequences
2015/12/16
Research on the motion behaviour of arctic glaciers provides important information about the influence of global temperature
changes on the climate system and especially the global sea level rise. In...
In-construction vibration monitoring of a supertall structure using a long-range wireless sensing system
Wireless sensing supertall structure ambient vibration structural health monitoring (SHM)
2015/6/30
As a testbed for various structural health monitoring (SHM) technologies, a supertall structure – the 610m-tall Guangzhou Television and Sightseeing Tower (GTST) in Southern China – is currently under...
A LONG RANGE PHOTOGRAMMETRIC METHOD WITH ORTHOGONAL PROJECTION MODEL
photogrammetry vision metrology
2015/6/1
This paper describes a method appropriate for 3-D measurement from a long distance with a digital camera mounting
a super telescopic lens. Long distance observation with telescopic lens camera is a e...
Statistical Models for Long-range Forecasting of Southwest Monsoon Rainfall over India Using Step Wise Regression and Neural Network
Monsoon ISMR LRF Step-Wise Regression Neural-Networks
2013/2/26
The long-range forecasts (LRF) based on statistical methods for southwest monsoon rainfall over India (ISMR) has been issued by the India Meteorological Department (IMD) for more than 100 years. Many ...
Culturomics meets random fractal theory: Insights into long-range correlations of social and natural phenomena over the past two centuries
Culturomics meets random fractal theory Insights long-range correlations social natural phenomena two centuries
2012/2/27
Culturomics was recently introduced as the application of high-throughput data collection and analysis to the study of human culture. Here we make use of this data by investigating fluctuations in yea...
Long-Range Distributed Strain and Temperature Sensing with 40-cm Spatial Resolution Based on DPP-BOTDA Employing Optical Pre-Amplification and Simplex Coding
Fiber optics sensors Stimulated scattering
2015/5/25
Sub-meter resolution sensing has been achieved employing linear pre-amplification with Simplex-coded pulses employing DPP-BOTDA. Results demonstrate a spatial resolution of ~40 cm over 56km sensing fi...
Temperature Dependence of Ultrasonic Longitudinal Guided Wave Propagation in Long Range Steel Strands
steel strand ultrasonic guided waves mode temperature coefficient
2011/8/4
Ultrasonic guided wave inspection is an effective non-destructive testing method which can be used for stress level evaluation in steel strands. Unfortunately the propagation velocity of ultrasonic gu...
40 km long-range Raman-based distributed temperature sensor with meter-scale spatial resolution
Fiber optics sensors Scattering Raman
2015/6/10
We propose a new Raman based distributed measurement technique which allows for temperature sensing over nearly 40 km of graded index multimode optical fiber with meter-scale spatial resolution and te...
Synchronization of oscillators with long range power law interactions
oscillators interacting long range power law interaction dimensional lattice
2010/4/6
We present analytical calculations and numerical simulations for the synchronization of oscillators interacting via a long range power law interaction on a one dimensional lattice. We have identified ...
Black Sea Aerosol A Long Range Atmospheric Transport
Black Sea Trace Elements Trajectories Enrichment Factors Long Range Transport
2009/10/14
The chemical composition of atmospheric particulate samples collected over the atmosphere near sea level of Black sea were analyzed for 40 elements by Instrumental Neutron Activation Analysis (INAA) a...
Enhanced long-range distributed strain and temperature sensing using BOTDA and optical pulse coding
Enhanced long-range distributed strain temperature sensing BOTDA optical pulse coding
2015/7/20
Optical pulse coding is successfully applied to long-range sensors based on Brillouin optical time domain analysis, achieving a record of 1 meter spatial resolution over 50 km of SMF with 2.2°C / 44 μ...
Nondiffracting Light Beams of Long Range Propagation
Light beam Nondiffracting beam Long range propagation
2009/6/8
An unusual light beam, long range nondiffracting beam (LRNB) is presented. The LRNB propagates over a long range keeping its narrow beam width as if it does not diffract, while general light beams spr...