David Trejo

ORCID: 0000-0001-8647-8096
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About
Contact & Profiles
Research Areas
  • Concrete Corrosion and Durability
  • Concrete and Cement Materials Research
  • Structural Behavior of Reinforced Concrete
  • Innovative concrete reinforcement materials
  • Infrastructure Maintenance and Monitoring
  • Corrosion Behavior and Inhibition
  • Structural Load-Bearing Analysis
  • Concrete Properties and Behavior
  • BIM and Construction Integration
  • Structural Engineering and Vibration Analysis
  • Innovations in Concrete and Construction Materials
  • Smart Materials for Construction
  • Materials Engineering and Processing
  • Geotechnical Engineering and Soil Stabilization
  • Construction Project Management and Performance
  • Geotechnical Engineering and Underground Structures
  • Engineering and Material Science Research
  • Neurological disorders and treatments
  • Structural Response to Dynamic Loads
  • Life Cycle Costing Analysis
  • Epilepsy research and treatment
  • Transportation Safety and Impact Analysis
  • Geophysical Methods and Applications
  • EEG and Brain-Computer Interfaces
  • Ultrasonics and Acoustic Wave Propagation

Oregon State University
2015-2024

Mustansiriyah University
2021-2022

Hospital General de México
2007-2022

Universidad de Salamanca
2019

Centro de Investigación en Materiales Avanzados
2017

Texas A&M University
2002-2010

Ashland (United States)
2006-2010

Marathon Oil (United States)
2006-2010

Rice University
2009

Texas Department of Transportation
2004-2009

Summary: Purpose: Our aim was to evaluate the safety and efficacy of electrical stimulation hippocampus in a long‐term follow‐up study, as well its impact on memory performance treatment patients with refractory mesial temporal lobe epilepsy. Methods: Nine were included. All had partial complex seizures, some secondary generalizations. 3‐month‐baseline‐seizure count, after which they underwent bilateral hippocampal diagnostic electrode implantation establish focus laterality location. Three...

10.1111/j.1528-1167.2007.01181.x article EN Epilepsia 2007-07-18

OBJECTIVE Deep brain stimulation has been used in the treatment of refractory obsessive-compulsive disorder (OCD). Our principal objective was to determine safety and effectiveness deep inferior thalamic peduncle OCD. METHODS An open protocol performed from March 2003 April 2007 5 patients with OCD conventional treatments. Bilateral stereotactic implantation tetrapolar electrodes aimed at corroborated by electrophysiological responses magnetic resonance imaging. All were off for 1 month...

10.1227/01.neu.0000345938.39199.90 article EN Operative Neurosurgery 2009-12-01

Controlled low-strength material (CLSM) is a self-compacting, flowable, low-strength, cementitious used primarily as backfill, void fill, and utility bedding in lieu of conventional compacted fill. Potential advantages CLSM include decreased labor requirements, faster construction speed, potentially lower in-place cost. When considering material, two the most important properties flowability compressive strength. The can directly impact productivity human resource requirements for placing...

10.1061/(asce)0899-1561(2002)14:6(485) article EN Journal of Materials in Civil Engineering 2002-11-21

10.1016/j.ibiod.2010.09.001 article EN International Biodeterioration & Biodegradation 2010-09-29

Corrosion of reinforcement is a predominant reason for reduced service lives reinforced concrete (RC) structures exposed to aggressive environments. This deterioration process can lead damage resulting in capacity loss or even structural failure, especially coastal marine environments where deicing antiicing applications occur. Based on data from the National Bridge Inventory 2010, average bridge age country 40 years old. Thirty percent bridges have exceeded 50 years, 7% 75 and 25% are...

10.1061/(asce)st.1943-541x.0001145 article EN Journal of Structural Engineering 2014-08-01

This paper presents the results of a testing program developed to assess performance circular RC bridge columns constructed with ASTM A706 Grade 80 [550] high-strength steel (HSS) reinforcement. Two pairs were tested (four in total). The subjected lateral cyclic loading determine effects reinforcement grade (yield strength) and moment–shear span ratio on column performance. Each pair consisted one HSS control 60 [420] first had six (6), second three (3). All four designed have similar...

10.1061/(asce)be.1943-5592.0000769 article EN Journal of Bridge Engineering 2015-06-30

Productivity in the US construction industry has been widely reported to be on decline and among several causes identified, lack of innovation project management practices described as having led lost productivity, especially face growing complexity increasing need for enhanced stakeholder collaboration. Digitalization potential improve thus help reversing this productivity. However, public agencies have not fully adopted or document software, known herein digital construction-phase...

10.36680/j.itcon.2021.001 article EN cc-by Journal of Information Technology in Construction 2021-01-25

Generating methodologies to make high-integrity carbon offsets  is a global challenge. This requires accurate techniques measure both ecosystem stocks and fluxes. Even though some of these technologies have been available for time, such as Eddy Covariance LiDAR, the market still in need model that integrates them can be trusted by offset buyers society. Here we present Carbon Real model, which based on on-site measurements aboveground biomass, real-time monitoring CO2 fluxes...

10.5194/egusphere-egu25-20617 preprint EN 2025-03-15

We report two cases of chronic therapeutic stimulation epileptic foci localized in motor areas. Case 1 is an adolescent with supplementary area seizures whose intracranial recordings showed a right SMA focus. 2 female teenager primary originating the cortex hand as shown by her and cortical mapping. Both had apparently normal MRI. Chronic focus decreased number more than 90% seizure while preserving function. None patients side effects. Neuromodulation proposed safe, efficient surgical...

10.1142/s0129065709001914 article EN International Journal of Neural Systems 2009-06-01

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10.14359/56461 article EN ACI Materials Journal 2009-01-01

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10.14359/51689015 article EN ACI Structural Journal 2016-07-11

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10.14359/13331 article EN ACI Structural Journal 2004-01-01

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10.14359/14303 article EN ACI Materials Journal 2005-01-01

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10.14359/12959 article EN ACI Materials Journal 2003-01-01
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