Results 281 to 290 of about 13,824,933 (347)

Rates of Unemployment and Penetrating Trauma Are Correlated

Southern Medical Journal, 2003
Trauma surgeons have observed an increased rate of penetrating trauma during periods of increased unemployment.During a 10-year period, the rate of unemployment in a metropolitan area was compared with the rate of intentional penetrating trauma at two Level I trauma centers. The total number of trauma cases was recorded.
Justin A, Reed, R Stephen, Smith, Stephen D, Helmer, Brent A, Lancaster, Claudia G, Carman   +4 more
openaire   +2 more sources

On the estimation of connected vehicle penetration rate based on single-source connected vehicle data

Transportation Research Part B: Methodological, 2019
With more connected vehicles (CVs) in the networks, the big data era leads to the availability of abundant data from CVs. CV penetration rate is the fundamental building block of tremendous applications, such as traffic data estimation, CV-based adaptive
W. Wong, Shengyin Shen, Yan Zhao, Henry X. Liu   +3 more
semanticscholar   +1 more source

Prediction of the Penetration Rate and Number of Consumed Disc Cutters of Tunnel Boring Machines (TBMs) Using Artificial Neural Network (ANN) and Support Vector Machine (SVM)—Case Study: Beheshtabad Water Conveyance Tunnel in Iran

Asian Journal of Water, Environment and Pollution, 2019
Tunnel boring machines (TBMs) are designed to excavate underground spaces and widely used in tunneling, civil and mining projects. TBM performance prediction substantially deals with the evaluation of machine’s penetration rate and the number of consumed
Alireza Afradi, A. Ebrahimabadi, Tahereh Hallajian   +2 more
semanticscholar   +1 more source

Effect of Penetration Rate on Cone Penetration Resistance in Saturated Clayey Soils

Journal of Geotechnical and Geoenvironmental Engineering, 2008
In this paper, the effects of penetration rate on cone resistance in saturated clayey soils are investigated. Shear strength rate effects in clayey soils are related to two physical processes: the increase of shear strength with increasing rate of loading and the increase of shear strength as the process transitions from undrained to drained.
Kwangkyun Kim, Monica Prezzi, Rodrigo Salgado, Woojin Lee   +3 more
openaire   +1 more source

Optimal Market Penetration Rates of VICS

2011
VICS (Vehicle Information and Communication System) is a digital data communication system which provides prompt and useful information on current traffic conditions — such as traffic congestion, accidents, or link-travel time — to drivers via car navigation equipment. VICS was described in detail in Chapter 5.
Hiroaki Miyoshi, Masayoshi Tanishita
openaire   +1 more source

Measurement and analysis of penetration rate and vibration on a roof bolter for identification rock interface of roadway roof

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2019
At present, Measurement While Drilling (MWD) for detection of the roof rock stratum characteristics is mainly focused on numerical simulation and laboratory research, and the research results are somewhat different from the field experimental results. In
Cancan Liu, Xigui Zheng, A. Arif, Mengbin Xu   +3 more
semanticscholar   +1 more source

Rate-controlled cone penetration tests in permafrost

Canadian Geotechnical Journal, 2005
Cone penetration tests (CPTs) were carried out in the summers of 1999 and 2000 in a permafrost mound near Umiujaq, in northern Quebec, Canada, to study the cryostratigraphy and assess the creep behaviour of permafrost. A new linear pushing system using an actuator technology was specifically designed and developed to accurately control the penetration
Sylvie Buteau, Richard Fortier, Michel Allard   +2 more
openaire   +1 more source

Forecasting tunnel boring machine penetration rate using LSTM deep neural network optimized by grey wolf optimization algorithm

Expert systems with applications, 2022
A. Mahmoodzadeh, Hamidreza Nejati, M. Mohammadi, H. Ibrahim, Shima Rashidi, Tarik Ahmed Rashid   +5 more
semanticscholar   +1 more source

Influence of Penetration Rate on Penetrometer Resistance

Journal of Geotechnical and Geoenvironmental Engineering, 2011
Penetration resistance in fine-grained soils varies with the rate of penetration. Considering undrained behavior as a reference, as the rate of penetration is reduced, soil resistance increases because of the effects of partial consolidation and soil strengthening immediately ahead of the probe.
José R. M. S. Oliveira, Márcio S. S. Almeida, Helena P. G. Motta, Maria C. F. Almeida   +3 more
openaire   +1 more source

Success and challenges in predicting TBM penetration rate using recurrent neural networks

Tunnelling and Underground Space Technology, 2022
F. Shan, Xuzhen He, D. Jahed Armaghani, Pin Zhang, Daichao Sheng   +4 more
semanticscholar   +1 more source