In this paper, we propose a community detection method to find regions in spatial data with higher correlations. We construct ‘correlation deviation graph’ that considers the influence of global correlation caused by node's geographical location. compare performance graph conventional construction approaches for detection, using synthetic data, and show proposed has best presence structure. als...

A series of new ground motion studies using an upgraded hydrostatic level system are planned at Fermilab and SLAC in collaboration with BINP. To better characterize both the spatial and temporal characteristics of slow ground motion, these studies will use large number of probes and will also be performed in several geologically different locations. The hydrostatic level system used in ongoing ...

Disinfection by-products were determined in 15 water treatment plants in Beijing City. The effects of different water sources (surface water source, mixture water source and ground water source), seasonal variation and spatial variation were examined. Trihalomethanes and haloacetic acids were the major disinfection by-products found in all treated water samples, which accounted for 42.6% and 38...

The existence of recorded accelerograms to perform dynamic inelastic time history analysis is of the utmost importance especially in near-fault regions where directivity pulses impose extreme demands on structures and cause widespread damages. But due to the scarcity of recorded acceleration time histories, it is common to generate proper artificial ground motions. In this paper an alternative ...

Reinforced concrete frame buildings with Open Ground Story (OGS) are one of the most common building configurations in urban habitat. These configurations are known to be vulnerable to seismic excitations, primarily due to the sudden loss in strength in the ground story and differential stiffness distribution throughout the structure. The differential stiffness distribution is attributed primar...

Spatial cognition is central to human thinking, and spatial language is thus an important area of study, as it may reveal fundamental properties of human thought. Recent research reveals that spatial language is much more divergent across languages than had been thought, suggesting significant cultural patterning of spatial conceptualization. Space can be treated as a complex semantic field wit...

modeling and wrench feasible workspace analysis of a spatial cable suspended robots is presented. a six-cable spatial cable robot is used the same as stewart robots. due to slow motion of the robot we suppose the motion as pseudostatic and kinetostatic modeling is performed. various workspaces are defined and the results of simulation are presented on the basis of various workspaces and applied...

We used the Pulfrich effect to investigate perception of motion in depth. Independent manipulation of spatial and temporal frequency content in stereoscopic motion stimuli revealed the tuning characteristics of motion-in-depth perception. Sensitivity to interocular phase difference between sinusoidally oscillating sine-wave gratings was measured in four observers who judged direction of motion ...

In violent earthquakes, ground motion is considered to change dramatically in the process of spatial propagation. Strong spatially varying exists near fault area, and it can cause large-span large stiffness structure be damaged. this paper, a typical long-span steel box arch bridge selected as an engineering case. order simulate variation accurately, records that sampled former earthquake are u...