Lewis–Clark State College is a public undergraduate college in the northwest United States, located in Lewiston, Idaho. Founded 122 years ago in 1893, it has an annual enrollment of approximately 3,500 students. The college offers over 83 degrees and is well known for its criminal justice, education, nursing, and technical programs. Wikipedia.
Cao W.,University of Southern California |
Paterson S.,University of Southern California |
Memeti V.,California State University, Fullerton |
Mundil R.,Berkeley Geochronology Center |
And 2 more authors.
Lithosphere | Year: 2015
In this study, structures in plutons and host rocks are coupled with geochronology to track paleodeformation fields from the late Paleozoic to Late Cretaceous in the central Sierra Nevada. Regional NW-striking host-rock foliation, NE- or SW-vergent thrust faults, and associated folds developed from the early Mesozoic to Early Cretaceous. Dextral transpressional shear zones developed in the Late Cretaceous. Strikes of steep-dipping magmatic foliations in Mesozoic plutons temporally vary from approximately NW (Triassic-Jurassic) to WNW (Late Cretaceous), displaying a progressive counterclockwise rotation. Joint interpretation based on combining host-rock and magmatic structures suggests that intra-arc paleodeformation fields were dominated by coaxial and arc-perpendicular contraction from the early Mesozoic to Early Cretaceous, becoming increasingly dextral transpressive in the Late Cretaceous. The switch from contraction to transpression was likely caused by oblique convergence between the Farallon and North American plates. Based on observations in the study area and other host-rock pendants in the central Sierra Nevada, we propose that the intensity of intra-arc deformation is cyclic. To some extent, it mimics the episodic pattern of arc magmatism: Stronger deformation coincides with magmatic flare-ups. Magmatism promotes intra-arc deformation, which in turn causes crustal thickening during transfer of materials downward to the magma source regions, potentially fertilizing source regions with supracrustal materials and resulting in increased magma generation. Thus, models addressing continental arc tempos should include intra-arc processes. Evolution of continental arcs may be influenced by linked cyclic processes within the arcs accompanied by noncyclic processes driven by events external to the arcs. © 2015 Geological Society of America.
Das S.R.,Massachusetts Institute of Technology |
Chita S.,Washington State University |
Peterson N.,Lewis - Clark State College |
Shirazi B.A.,Massachusetts Institute of Technology |
Bhadkamkar M.,Massachusetts Institute of Technology
2011 IEEE International Conference on Pervasive Computing and Communications Workshops, PERCOM Workshops 2011 | Year: 2011
As mobile devices continue to grow in popularity and functionality, the demand for advanced ubiquitous mobile applications in our daily lives also increases. This paper deals with the design and implementation of HASec, a Home Automation and Security system for mobile devices, that leverages mobile technology to provide essential security to our homes and associated control operations. In particular, with the help of mobile devices, HASec operates and controls motion detectors and video cameras for remote sensing and surveillance, streams live video and records it for future playback, and finally manages operations on home appliances, such as turning ON/OFF a television or microwave or altering the intensity of lighting around the house. The proposed home security solution hinges on our novel integration of cameras and motion detectors into a mobile application. For instance, when motion is detected, the cameras automatically initiate recording and the iOS device alerts the homeowner of the possible intrusion. HASec has two main components interacting with each other: the iOS application that executes on the mobile device and server-side scripts that run in a cloud. Although HA-Sec is implemented for Apple's iOS devices such as iPhone, iPod Touch, and iPad, it can be easily ported to other mobile platforms. Furthermore, our application is not only limited to smart-phones but also can be used by feature phones through their browsers. © 2011 IEEE.
Schmidt K.L.,Lewis - Clark State College |
Wetmore P.H.,University of South Florida |
Alsleben H.,Texas Christian University |
Paterson S.R.,University of Southern California
Memoir of the Geological Society of America | Year: 2014
The Mesozoic Peninsular Ranges batholith, part of a long-lived Cordilleran subduction orogen, is located at a critical juncture at the southwest corner of cratonal North America. The batholith is divided into northern and southern segments that differ in their evolution. In this paper, we focus on the more poorly understood southern Peninsular Ranges batholith, south of the Agua Blanca fault at ∼31.5°N latitude, and we compare its evolution with the better-known northern Peninsular Ranges batholith. Adding our new insights to previous work, our present understanding of the geologic history of the Peninsular Ranges consists of the following: (1) stronger connections between the Paleozoic passive-margin rocks in the eastern Peninsular Ranges batholith and similar assemblages in Sonora, Mexico, to the east and the Sierra Nevada batholith to the north that were originally proposed by earlier workers; (2) continuity of the Triassic-Jurassic accretionary prism and forearc basin assemblage from the northern Peninsular Ranges batholith through the southern Peninsular Ranges batholith; (3) possible synchronous subduction of an ocean ridge or ridge transform along the Peninsular Ranges batholith in late Middle Jurassic time; (4) continuity of the Early Cretaceous Santiago Peak continental arc from the northern Peninsular Ranges batholith along the entire margin, including the southern Peninsular Ranges batholith; (5) development of the Alisitos oceanic arc in Jurassic and possibly Triassic time, much earlier than originally thought; and (6) removal of part of the Santiago Peak assemblage in the southern Peninsular Ranges batholith during collision of the Alisitos terrane in latest Early Cretaceous time. © 2014 Geological Society of America.
Light J.,Lewis - Clark State College
ASEE Annual Conference and Exposition, Conference Proceedings | Year: 2012
This paper describes how one service-learning project was incorporated and improved through two sequenced courses, Engineering Statics and Dynamics, in a small school with limited resources and smaller classes. The benefits of service-learning are well documented so including a service-learning component in engineering courses is a logical educational extension. However, developing meaningful and interesting service-learning projects for sophomore level engineering students that can be completed within a limited timeframe is challenging. This case study examines the development, implementation, improvement, and student experiences of an effective service-learning project for two sequenced, sophomore year, fundamental engineering courses. © 2012 American Society for Engineering Education.
Huang R.,Washington State University |
Song W.-Z.,Georgia State University |
Xu M.,Georgia State University |
Peterson N.,Lewis - Clark State College |
And 2 more authors.
IEEE Transactions on Parallel and Distributed Systems | Year: 2012
This paper presents the design, deployment, and evaluation of a real-world sensor network system in an active volcanoMount St. Helens. In volcano monitoring, the maintenance is extremely hard and system robustness is one of the biggest concerns. However, most system research to date has focused more on performance improvement and less on system robustness. In our system design, to address this challenge, automatic fault detection and recovery mechanisms were designed to autonomously roll the system back to the initial state if exceptions occur. To enable remote management, we designed a configurable sensing and flexible remote command and control mechanism with the support of a reliable dissemination protocol. To maximize data quality, we designed event detection algorithms to identify volcanic events and prioritize the data, and then deliver higher priority data with higher delivery ratio with an adaptive data transmission protocol. Also, a light-weight adaptive linear predictive compression algorithm and localized TDMA MAC protocol were designed to improve network throughput. With these techniques and other improvements on intelligence and robustness based on a previous trial deployment, we air-dropped 13 stations into the crater and around the flanks of Mount St. Helens in July 2009. During the deployment, the nodes autonomously discovered each other even in-the-sky and formed a smart mesh network for data delivery immediately. We conducted rigorous system evaluations and discovered many interesting findings on data quality, radio connectivity, network performance, as well as the influence of environmental factors. © 2006 IEEE.