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Pengcheng Peng, Hui Huang, Hongqiang Ren, Haijun Ma, Yuan Lin, Jinju Geng, Ke Xu, Yan Zhang, Lili Ding
Startup of biofilm process triggered by initial adhesion of bacteria is difficult in high ammonia nitrogen wastewater treatment. In this study, the influence of two commonly used N-acyl homoserine lactones (AHLs), N-Hexanoyl-l-homoserine lactone (C6-HSL) and N-Octanoyl-l-homoserine lactone (C8-HSL), on the adhesion of soluble macromolecules and bacteria in four types of high ammonia nitrogen wastewater to surfaces of model biocarriers (i.e. polystyrene, polyamide and polyethylene terephthalate) was investigated by using a quartz crystal microbalance with dissipation (QCM-D) monitoring technology...
May 15, 2018: Science of the Total Environment
Cheng Li, Luguang Wang, Hong Liu
A possible approach to enhance the performance of microbial electrochemical system such as microbial fuel cells is to increase the conductivity of catalytic biofilms and thereby the direct extracellular electron transfer within the biofilms and from the electrode. In the present study, we evaluated the impact of static low-intensity magnetic field on the anodic biofilms in microbial fuel cells (MFCs). Results demonstrated that the application of a low-intensity magnetic field (105 and 150 mT) can significantly shorten the startup time and enhance the overall performance of single-chamber MFCs in terms of current density (300%) and power density (150%)...
June 20, 2018: Applied Microbiology and Biotechnology
Maxwell Olokundun, Chinonye Love Moses, Oluwole Iyiola, Stephen Ibidunni, Mercy Ogbari, Fred Peter, Taiye Borishade
Traditional methods of teaching entrepreneurship in universities involves more theoretical approaches which are less effective in motivating considerations for an entrepreneurship career. This owes to the fact that such techniques essentially make students develop a dormant attitude rather than active participation. Expert views suggest that experiential entrepreneurship teaching methods in universities which involve practical activities and active participation can be considered salient to students' development of entrepreneurial interest an business startup potentials...
August 2018: Data in Brief
Youqu Zheng, Jiangen Hu, Guoneng Li, Lingyun Zhu, Wenwen Guo
In order to provide heat and electricity under emergency conditions in off-grid areas, a stove-powered thermoelectric generator (STEG) was designed and optimized. No battery was incorporated, ensuring it would work anytime, anywhere, as long as combustible materials were provided. The startup performance, power load feature and thermoelectric (TE) efficiency were investigated in detail. Furthermore, the heat-conducting plate thickness, cooling fan selection, heat sink dimension and TE module configuration were optimized...
June 7, 2018: Materials
Cormac Sheridan
No abstract text is available yet for this article.
June 6, 2018: Nature Biotechnology
Jeremy Snepar, Elliot K Fishman, Karen M Horton, Pamela T Johnson, Steven P Rowe
No abstract text is available yet for this article.
May 18, 2018: Journal of the American College of Radiology: JACR
Shusong Zhang, Xingbin Sun, Xuming Wang, Tianlei Qiu, Min Gao, Yanmei Sun, Shoutao Cheng, Qingjing Zhang
A newly isolated and identified Diaphorobacter polyhydroxybutyrativorans strain (SL-205) was employed to enhance the denitrification performance of a laboratory-scale solid-phase denitrification (SPD) reactor using poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) as a carbon source, and dynamic variations in microbial communities in the reactor were investigated. Results indicated that bioaugmentation with strain SL-205 enabled rapid reactor startup and improved denitrification performance relative to the reactor inoculated with activated sludge...
May 9, 2018: Bioresource Technology
Graham Cuff, Ariel E Turcios, Ehsan Mohammad-Pajooh, Olaf Kujawski, Dirk Weichgrebe, Karl-Heinz Rosenwinkel
At an Austrian soft drink company, an expanded granular sludge bed reactor for anaerobic wastewater treatment was inoculated with sludge from paper and food industries. Detailed online monitoring and laboratory examinations were carried out during startup and subsequent phases, which included a period of inhibition after ca. 80 days during which reactor degradative performance diminished suddenly, following a period of increased effluent VFA. After dosing iron chloride (FeCl2 ) and micronutrients and reducing organic loading to startup levels, the reactor eventually reached efficient operation (>85% COD degradation) after a gradual recovery phase...
May 10, 2018: Journal of Environmental Management
Ashley A Danley-Thomson, Ellen C Huang, Thomas Worley-Morse, Claudia K Gunsch
AIMS: In biosand filters (BSF), treatment is largely driven by the development of a biolayer (schmutzdecke) which establishes itself during the startup phase. In the present study, the effect of changing influent total organic carbon (TOC) loading on the removal efficiency of Vibrio cholerae in laboratory-operated BSFs was quantified. METHODS AND RESULTS: BSFs were charged with high, medium or low TOC influents and removal efficacy and schmutzdecke composition was monitored over two months...
May 9, 2018: Journal of Applied Microbiology
Rita Fontanella, Domenico Accardo, Rosario Schiano Lo Moriello, Leopoldo Angrisani, Domenico De Simone
This paper presents an innovative model for integrating thermal compensation of gyro bias error into an augmented state Kalman filter. The developed model is applied in the Zero Velocity Update filter for inertial units manufactured by exploiting Micro Electro-Mechanical System (MEMS) gyros. It is used to remove residual bias at startup. It is a more effective alternative to traditional approach that is realized by cascading bias thermal correction by calibration and traditional Kalman filtering for bias tracking...
May 7, 2018: Sensors
William J Binder, Jennifer L Cook, Nickalaus Gramze, Sophia Airhart
Health systems across the United States are adopting intensive care unit telemedicine programs to improve patient outcomes. Research demonstrates the potential for decreased mortality and length of stay for patients of these remotely monitored units. Financial models and studies point to cost-effectiveness and the possibility of cost savings in the face of abundant startup costs. Questions remain as to the true financial implications of these programs and targeted populations that may see the greatest benefit...
June 2018: Critical Care Nursing Clinics of North America
James Weis, Ashvin Bashyam, Gregory J Ekchian, Kathryn Paisner, Nathan L Vanderford
Background: A large number of highly impactful technologies originated from academic research, and the transfer of inventions from academic institutions to private industry is a major driver of economic growth, and a catalyst for further discovery. However, there are significant inefficiencies in academic technology transfer. In this work, we conducted a data-driven assessment of translational activity across United States (U.S.) institutions to better understand how effective universities are in facilitating the transfer of new technologies into the marketplace...
2018: F1000Research
Jeremy F Chignell, Susan K De Long, Kenneth F Reardon
Background: Bioelectrochemical systems (BESs) harness electrons from microbial respiration to generate power or chemical products from a variety of organic feedstocks, including lignocellulosic biomass, fermentation byproducts, and wastewater sludge. In some BESs, such as microbial fuel cells (MFCs), bacteria living in a biofilm use the anode as an electron acceptor for electrons harvested from organic materials such as lignocellulosic biomass or waste byproducts, generating energy that may be used by humans...
2018: Biotechnology for Biofuels
Mélanie Pierra, Mehdi Golozar, Xu Zhang, Antonin Prévoteau, Michael De Volder, Dominiek Reynaerts, Korneel Rabaey
Bioelectrochemical systems couple electricity demand/supply to the metabolic redox reactions of microorganisms. Generally, electrodes act not only as electron acceptors/donors, but also as physical support for an electroactive biofilm. The microorganism-electrode interface can be modified by changing the chemical and/or topographical features of the electrode surface. Thus far, studies have reported conflicting results on the impact of the electrode surface roughness on the growth and current production of biofilms...
August 2018: Bioelectrochemistry
A F Silva, J Vercruysse, C Vervaet, J P Remon, J A Lopes, T De Beer, M C Sarraguça
The present study aims at acquiring an in-depth process knowledge about a twin-screw granulation and fluid bed drying process performed on the commercially available continuous line. Batch Statistical Process Monitoring (BSPM) principles are used to describe and monitor the variables with a relevant time-related trajectory. The continuous granulator operates in a truly continuous manner and variables logged by this unit do not present time-relevant features. On the other hand, the fluid bed dryer is divided in six identical cells, which are sequentially filled and discharged, ensuring a continuous flow of material...
July 2018: European Journal of Pharmaceutics and Biopharmaceutics
Lynn M Rose, Fiona Wills, Connie Bourassa-Shaw, Terri L Butler, Jeanette Griscavage Ennis, Kim Emmons, Patrick Shelby, Meher Antia, Kim Folger Bruce
Introduction: The Institute of Translational Health Sciences (ITHS), a Clinical and Translational Science Award (CTSA)-funded program at the University of Washington (UW), established the Drug and Device Advisory Committee (DDAC) to provide product-specific scientific and regulatory mentoring to investigators seeking to translate their discoveries into medical products. An 8-year retrospective analysis was undertaken to evaluate the impact of the DDAC programs on commercialization metrics...
August 2017: Journal of Clinical and Translational Science
Xudong Ge, Prosper Adangwa, Ja Young Lim, Yordan Kostov, Leah Tolosa, Richard Pierson, Daniel Herr, Govind Rao
Blood gas measurements provide vital clinical information in critical care. The current "gold standard" for blood gas measurements involves obtaining blood samples, which can be painful and can lead to bleeding, thrombus formation, or infection. Mass transfer equilibrium-based transcutaneous blood gas monitors have been used since the 1970s, but they require heating the skin to ≥42 °C to speed up the transcutaneous gas diffusion. Thus, these devices have a potential risk for skin burns. Here we report a new generation of noninvasive device for respiratory status assessment...
June 2018: Medical Engineering & Physics
Wendy Aartsen, Paul Peeters, Scott Wagers, Bryn Williams-Jones
Projects in public-private partnerships, such as the Innovative Medicines Initiative (IMI), produce data services and platforms (digital assets) to help support the use of medical research data and IT tools. Maintaining these assets beyond the funding period of a project can be a challenge. The reason for that is the need to develop a business model that integrates the perspectives of all different stakeholders involved in the project, and these digital assets might not necessarily be addressing a problem for which there is an addressable market of paying customers...
2018: Frontiers in Medicine
Thomas Kriechbaumer, Hans-Arno Jacobsen
Energy metering has gained popularity as conventional meters are replaced by electronic smart meters that promise energy savings and higher comfort levels for occupants. Achieving these goals requires a deeper understanding of consumption patterns to reduce the energy footprint: load profile forecasting, power disaggregation, appliance identification, startup event detection, etc. Publicly available datasets are used to test, verify, and benchmark possible solutions to these problems. For this purpose, we present the BLOND dataset: continuous energy measurements of a typical office environment at high sampling rates with common appliances and load profiles...
March 27, 2018: Scientific Data
Sam Cartwright-Hatton, Donna Ewing, Suzanne Dash, Zoe Hughes, Ellen J Thompson, Cassie M Hazell, Andy P Field, Helen Startup
OBJECTIVES: Children of anxious parents are at high risk of anxiety disorders themselves. The evidence suggests that this is due to environmental rather than genetic factors. However, we currently do little to reduce this risk of transmission. There is evidence that supporting parenting in those with mental health difficulties can ameliorate this risk. Therefore, the objective of this study was to test the feasibility of a new one-session, group-based, preventive parenting intervention for parents with anxiety disorders...
March 25, 2018: British Journal of Clinical Psychology
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