Evaluating stream restoration: A case study from two partially developed 4th order Connecticut, U.S.A. streams and evaluation monitoring strategies

2011 ◽  
Vol 27 (4) ◽  
pp. 431-460 ◽  
Author(s):  
R. Schiff ◽  
G. Benoit ◽  
J. MacBroom
2010 ◽  
Vol 7 (3) ◽  
pp. 231-239
Author(s):  
Manel Frigola ◽  
Manuel Vinagre ◽  
Alicia Casals ◽  
Josep Amat ◽  
Fernando Santana ◽  
...  

Robotics has shown its potential not only in assisting the surgeon during an intervention but also as a tool for training and for surgical procedure's evaluation. Thus, robotics can constitute an extension of simulators that are based on the high capabilities of computer graphics. In addition, haptics has taken a first step in increasing the performance of current virtual reality systems based uniquely on computer simulation and their corresponding interface devices. As a further step in the field of training and learning in surgery, this work describes a robotic experimental workstation composed of robots and specific measuring devices, together with their corresponding control and monitoring strategies for orthopaedic surgery. Through a case study, humerus arthroplasty, experimental evaluation shows the possibilities of having a test bed available for repetitive and quantifiable trials, which make a reliable scientific comparison between different surgical strategies possible.


2021 ◽  
Author(s):  
Manu Sasidharan ◽  
Ajith Kumar Parlikad ◽  
Jennifer Schooling

<p>While the benefits of monitoring bridges are fairly understood, securing the resources necessary for their development and installation is often difficult. The premise of the article is that infrastructure owners will take action to provide those resources when they can see value accruing to them; therefore narratives around value generation and business cases are required to motivate and support that action. This paper explores the application of the value of information methodology to the challenge of developing a business case for bridge monitoring using an illustrative case study on a simulacrum of a road bridge in the UK. To this end, this paper presents a systematic approach for setting risk-informed bridge monitoring strategies while considering the reliability and accuracy of data capture offered by different monitoring techniques and the gains to be made downstream if it contributes to setting timely maintenance strategies.</p>


2017 ◽  
Vol 16 (8) ◽  
pp. 523-533
Author(s):  
Nethong NAMPROM ◽  
Wilawan PICHEANSATHIAN ◽  
Usanee JINTRAWET ◽  
Jutamas CHOTIBANG

A Maternal Participation Program in the context of Thai culture was developed based on the Neonatal Integrative Developmental Care model. A multiple case study design was used to explore the feasibility and acceptability and potential outcomes of implementing the program in a Thai NICU. The potential outcomes were growth and neurobehavioral development of very and moderately preterm infants. This program consisted of education and monitoring strategies including 4 teaching and practice sessions of 6 care practices, which included optimizing nutrition, positioning and handling, safeguarding sleep, promoting a healing environment, minimizing stress, and protecting the skin. The maternal participation program with education strategies was implemented one week after the infant’s admission to an NICU. Strategies to monitor the maternal participation level and to boost maternal participation were used. The maternal participation program was beneficial for 3 Thai mothers. They gave positive feedback regarding the feasibility and acceptability of the program, as well as the readability of the “My Baby” handbook. The level of maternal participation in caring for preterm infants increased after being involved in this program. Additionally, preterm infants’ body weight and neurobehavioral scores dramatically increased. Further studies of this program need to be conducted in a randomized controlled trial design.


Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6574
Author(s):  
Ting Xiao ◽  
Brian McPherson ◽  
Richard Esser ◽  
Wei Jia ◽  
Zhenxue Dai ◽  
...  

Potential leakage of reservoir fluids is considered a key risk factor for geologic CO2 sequestration (GCS), with concerns of their chemical impacts on the quality of overlying underground sources of drinking water (USDWs). Effective risk assessment provides useful information to guide GCS activities for protecting USDWs. In this study, we present a quantified risk assessment case study of an active commercial-scale CO2-enhanced oil recovery (CO2-EOR) and sequestration field, the Farnsworth Unit (FWU). Specific objectives of this study include: (1) to quantify potential risks of CO2 and brine leakage to the overlying USDW quality with response surface methodology (RSM); and (2) to identify water chemistry indicators for early detection criteria. Results suggest that trace metals (e.g., arsenic and selenium) are less likely to become a risk due to their adsorption onto clay minerals; no-impact thresholds based on site monitoring data could be a preferable reference for early groundwater quality evaluation; and pH is suggested as an indicator for early detection of a leakage. This study may provide quantitative insight for monitoring strategies on GCS sites to enhance the safety of long-term CO2 sequestration.


2019 ◽  
Vol 11 (10) ◽  
pp. 2875 ◽  
Author(s):  
Helen M. Poulos ◽  
Kate E. Miller ◽  
Ross Heinemann ◽  
Michelle L. Kraczkowski ◽  
Adam W. Whelchel ◽  
...  

Dam removal is an increasingly common stream restoration tool. Yet, removing dams from small streams also represents a major disturbance to rivers that can have varied impacts on environmental conditions and aquatic biota. We examined the effects of dam removal on the structure, function, and composition of benthic macroinvertebrate (BMI) communities in a temperate New England stream. We examined the effects of dam removal over the dam removal time-series using linear mixed effects models, autoregressive models, non-metric multidimensional scaling, and indicator and similarity analyses. The results indicated that the dam removal stimulated major shifts in BMI community structure and composition above and below the dam, and that the BMI communities are becoming more similar over time. The mixed model analysis revealed that BMI functional groups and diversity were significantly influenced by sample site and several BMI groups also experienced significant interactions between site and dam stage (P < 0.05), while the multivariate analyses revealed that community structure continues to differ among sites, even three years after dam removal. Our findings indicate that stream restoration through dam removal can have site-specific influences on BMI communities, that interactions among BMI taxa are important determinants of the post-dam removal community, and that the post-dam-removal BMI community continues to be in a state of reorganization.


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