Site Assessment / Initial Remedial Action

This report presents the data, analyses, results, and recommendations from the Initial Remedial Actions and Phase II Environmental Site Assessment. This report has been performed by Valley Scientific Remediation, Inc. (VSR) in the last quarter of 1991 and the first quarter of 1992, on behalf of Phillips Properties, Inc. at the Phillips Properties# 1 McAllen facility, located at 2215 West Business Hwy 83, near the southeast corner of Business Highway 83 and 23rd st., McAllen, Texas.https://scholarworks.utrgv.edu/contaminacion/1018/thumbnail.jp

IC 020 Guide to Methodist Hospital Records, 1925-1996

The Methodist Hospital records contains materials from the Methodist Hospital and the Bluebird Circle covering the years from the 1940s into the 1990s. The materials are generally in good condition. Materials include newsletters, news clippings, minutes, press releases, article drafts, scrapbooks, general historical information, photographs, sound recordings, and brochures. The Methodist Hospital History Project is included in this collection but was donated complete and has its own inventory. See more at IC 020

A Valley Hello [brochure]

A promotional brochure likely compiled by local chambers of commerce that features information on regional businesses, attractions, and leisure activities. Includes fold-out map and recipes. Also includes a brief overview of the Pan American University Marine Biology Laboratory, which is now known as the UTRGV Coastal Studies Lab.https://scholarworks.utrgv.edu/lrgv/1030/thumbnail.jp

IC 016 Guide to Institute of Religion Records, 1954-2000

The Institute of Religion records is .5 cubic foot and consists of 1 document box. It contains formation and scope documents, newsletters, correspondence, pamphlets and news clippings related to the early years of the Institue of Religion, now the Institute of Spirituality and Health. The materials are in good condition. See more at IC 016

Consequences of temperature and temperature variability on swimming activity, group structure, and predation of endangered delta smelt

The effects of water temperature on individual and group movement behaviour in prey fish can affect ecological interactions such as competition and predation, but how variability in temperature influence fish behaviour is less understood. Of particular concern is how increased warming in tidally fluctuating estuaries may impact the native and endangered delta smelt (Hypomesus transpacificus, Osmeridae). To help address this issue, we tested the effects of increased water temperature (fluctuating [17–21°C] and warm [21°C] acclimated treatments) on juvenile delta smelt individual and group behaviour, response to chemical alarm and predator cues, as well as capacity to evade predation. In addition, predation of delta smelt was tested in the presence of a dominant invasive competitor, Mississippi silversides (Menidia beryllina, Atherinopsidae), as well as comparative predation mortality on Mississippi silversides when isolated. After 7 days of increased temperature treatments, delta smelt in the warm treatment increased swimming velocity, decreased turning angle, and altered group structure with larger inter-individual distances compared to fish in the control (17°C) and fluctuating temperature treatments. Following conspecific and predator chemical alarm cues, delta smelt showed anti-predator responses. Control and fluctuating treatment fish responded to conspecific cues with increased swimming speeds, decreased inter-individual distances and near-neighbour distances, and, after 15 min, fish recovered back to baseline behaviours. In contrast, fish in the warm treatment had not recovered after 15 min, and swimming speeds were maintained at roughly 25 cm/s, close to maximum capabilities. Fish in control and fluctuating treatments showed minimal responses to predator cues, whereas delta smelt exposed to warm conditions significantly increased swimming speeds and decreased turning angle. Predation of delta smelt by largemouth bass (Micropterus salmoides, Centrarchidae) was greatest under the warm treatment, correlating with altered behaviours of delta smelt; however, predation of Mississippi silversides was greater than delta smelt, independent of temperature. This study provides novel insight into the group behaviour of delta smelt, their response to predation, and how prolonged exposure to elevated temperature may induce negative individual and group behaviours causing alterations in predator–prey dynamics. This work highlights the importance of testing ecologically realistic temperature fluctuations in experiments as delta smelt had significantly altered responses to elevated temperature, dependent on variability of warming

Effects of peptizing conditions on nanometer properties and photocatalytic activity of TiO?hydrosols prepared by H?TiO?

2007-2008 > Academic research: refereed > Publication in refereed journalAccepted ManuscriptPublishe

Robust control and actuator dynamics compensation for railway vehicles

A robust controller is designed for active steering of a high speed train bogie with solid axle wheel sets to reduce track irregularity effects on the vehicle’s dynamics and improve stability and curving performance. A half-car railway vehicle model with seven degrees of freedom equipped with practical accelerometers and angular velocity sensors is considered for the H∞ control design. The controller is robust against the wheel/rail contact parameter variations. Field measurement data are used as the track irregularities in simulations. The control force is applied to the vehicle model via ball-screw electromechanical actuators. To compensate the actuator dynamics, the time delay is identified online and is used in a second order polynomial extrapolation carried out to predict and modify the control command to the actuator. The performance of the proposed controller and actuator dynamics compensation technique are examined on a one-car railway vehicle model with realistic structural parameters and nonlinear wheel and rail profiles. The results showed that for the case of nonlinear wheel and rail profiles significant improvements in the active control performance can be achieved using the proposed compensation technique

College Church Bulletin, Volume 3, Number 30

College Church Bulletin, volume 3, number 30, from 27 April 1958. There is an article about George Bailey\u27s summer trip to Russia with other preachers

\u3ci\u3eThe Actuate\u3c/i\u3e

The Actuate bulletin from the August 24, 1958 service at the Lingleville Church of Christ in Lingleville, Texas