-
161
Dilution of precision for time difference of arrival with station deployment
Published 2021-08-01“…Abstract A study is conducted with the aim to reveal the relationship between the performance of moving object tracking algorithms and tracking anchor (station) deployment. The dilution of precision (DoP) for the time difference of arrival (TDoA) technique with respect to anchor deployment is studied. …”
Get full text
Article -
162
Minimally important change on the Columbia Impairment Scale and Strengths and Difficulties Questionnaire in youths seeking mental healthcare
Published 2025-01-01“…However, correlations between change score and anchor were below 0.5 for both measures, indicating suboptimal anchor credibility. …”
Get full text
Article -
163
Testing the Key Performance of Mobile Flood Protection System
Published 2018-01-01“…The stressing process indicated that the failure process in the post, anchor plate, and base concrete system propagates from the concrete on both sides of the anchor plates toward the water side.…”
Get full text
Article -
164
Numerical Simulation Analysis of NPR Anchorage Monitoring of Bedding Rock Landslide in Open-Pit Mine
Published 2020-01-01“…In this study, first, the NPR anchor cable monitoring, which shows supernormal mechanical characteristics and can realize the monitoring and early warning target for the whole landslide process and early warning curve of bedding rock “2016-1101 landslide” in the lower wall of Nanfen open-pit mine, was analyzed, revealing the failure process of the bedding rock landslide and the force evolution characteristics of the NPR anchor cable. …”
Get full text
Article -
165
An empirical study on the semantics-pragmatics of two Romance confirmational tags
Published 2024-12-01“…make a request for confirmation of the truth of the sentence anchor, whereas a confirmational with eh? is a request for the commitment of the addressee to the truth of the sentence anchor. …”
Get full text
Article -
166
Simulation Study of Sensitivity Performance of MEMS Capacitive Bending Strain Sensor for Spinal Fusion Monitoring
Published 2012-01-01“…In order to evaluate the sensitivity of the sensor, parametric study was carried out by varying electrode gap, anchor length, and dielectric coverage between the electrodes. …”
Get full text
Article -
167
Stress Evolution Mechanism and Control Technology for Reversing Mining and Excavation under Mining-Induced Dynamic Pressure in Deep Mine
Published 2022-01-01“…The asymmetric support structure of trapezoidal roadway is proposed as the core support, and the support scheme of dense bolts and anchor cables is proposed. The support of the 3206 return airway is composed of bolt, anchor cable, and anchor mesh, combined with M-shaped steel belt and steel beam. …”
Get full text
Article -
168
Real-Time Forestry Pest Detection Method Based on Enhanced Feature Fusion with Deep Learning
Published 2022-01-01“…The aim of this study is to address the real-time requirements of forestry pest detection and the problem of a low detection rate caused by anchor box redundancy of existing detection methods. …”
Get full text
Article -
169
High-Performance Grouting Mortar Based on Mineral Admixtures
Published 2015-01-01“…The ultimate bearing capacity of the gypsum-bauxite grouting mortar anchor increased by 39.6% compared to the common mortar anchor. …”
Get full text
Article -
170
Study on Safety Control of Large-Section Roadway with High Stress and Broken Surrounding Rock
Published 2021-01-01“…Through the modeling analysis of FLAC3D numerical software and the comparison of various support schemes, it is concluded that, after the combined support method of “anchor, net, and spray + grouting + full-section anchor cable + floor anchor cable“ is adopted, the convergence of roof and floor is reduced by 508 mm, and the convergence of two sides is reduced by 663 mm. …”
Get full text
Article -
171
A Study of Safety Coefficient Determination and Support Parameter Optimization Based on Vulnerability Preevaluation
Published 2021-01-01“…Applying more accurately calculated strength to the anchor-bolt structure can effectively avoid the issue of overcompensation, thus reducing the cost and increasing the driving speed. …”
Get full text
Article -
172
Surrounding Rock Stresses on a Working Face-End Roof under Mining Influence
Published 2021-01-01“…The surrounding rocks are in a stable state when the maximum stress of the surrounding rocks at the top corner of the reinforced anchor cable’s back-end is 26.1 MPa. The results show that cutting of the surrounding rocks at the top corner of the end and the reinforcement of the anchor cable can avoid the spalling and roof fall when the top corner of the end is affected by mining and can ensure that the end support advances and working face moves forward.…”
Get full text
Article -
173
Localization Algorithms in Large-Scale Underwater Acoustic Sensor Networks: A Quantitative Comparison
Published 2014-03-01“…The advantage of DV-hop and NLA is that the localization results do not rely on the number of anchor nodes; that is, only a small number of anchor nodes are needed for localization.…”
Get full text
Article -
174
Occurrence Mechanism of Roof-Fall Accidents in Large-Section Coal Seam Roadways and Related Support Design for Bayangaole Coal Mine, China
Published 2018-01-01“…On that basis, a new supporting design is proposed, including a more reasonable arrangement of anchor cables and bolts, bolts with full-length anchorage which are applicable in cracked and water-rich roadway, high-strength anchor cables, and crisscrossed steel bands. …”
Get full text
Article -
175
Failure Mechanism and Stability Control of Surrounding Rock of Docking Roadway under Multiple Dynamic Pressures in Extrathick Coal Seam
Published 2020-01-01“…The joint action of both is the mechanical mechanism that causes the plastic zone to expand in an asymmetric shape. (4) The coordinated control scheme of support (anchor bolt and anchor cable)—modified (grouting)—is adopted for the withdrawal roadway, and the coordinated control scheme of support (anchor bolt and anchor cable)—changing the cross-section shape of the roadway—is adopted for the docking roadway. …”
Get full text
Article -
176
Stability of Close Chambers Surrounding Rock in Deep and Comprehensive Control Technology
Published 2018-01-01“…Finally, the comprehensive control method was put forward with the water pump house as an example, that is, anchor, metal net, grouting, combined anchor cable and large-diameter anchor cable. …”
Get full text
Article -
177
An Improved 3D Localization Algorithm for the Wireless Sensor Network
Published 2015-06-01“…The concept of coplanarity is added into the traditional DV-Distance algorithm to reduce the positioning error caused by anchor nodes which are coplanar. Those unknown nodes which have been located are promoted to assistant anchor nodes to improve the positioning coverage. …”
Get full text
Article -
178
Research on the Reasonable Coal Pillar Width and Surrounding Rock Supporting Optimization of Gob-Side Entry under Inclined Seam Condition
Published 2021-01-01“…The results show that the influence range of inside stress field is about 12.2∼12.8 m based on theoretical calculation result; under the influence of 10 m coal column, the overall deformation of the roadway is relatively small and within the reasonable range of engineering construction, so the width of the coal pillar along the return air roadway is set to 10 m which is more reasonable; the cross-section characteristics of special-shaped roadway lead to asymmetric stress distribution and fragmentation of surrounding rock, and then the asymmetric surrounding rock control technology under the coupling effect of roof prestressed anchor + high-strength single anchor cable + truss anchor cable support is proposed. …”
Get full text
Article -
179
Displacement Monitoring during the Excavation and Support of Deep Foundation Pit in Complex Environment
Published 2021-01-01“…Taking a super large deep foundation pit project as an example, the horizontal displacement of crown beam and driveway, surface settlement, axial force of anchor cable, and underground water level in the construction process of the foundation pit are dynamically monitored and analyzed. …”
Get full text
Article -
180
Target Positioning with GDOP Assisted Nodes Selection Algorithm in Wireless Sensor Networks
Published 2014-06-01“…In wireless sensor networks (WSN), the geometric distribution of anchor nodes has a significant influence on the positioning accuracy. …”
Get full text
Article