keyword
MENU ▼
Read by QxMD icon Read
search

Energy cost

keyword
https://www.readbyqxmd.com/read/27922209/unconventional-pretreatment-of-lignocellulose-with-low-temperature-plasma
#1
Jens Vanneste, Thijs Ennaert, Annick Vanhulsel, Bert F Sels
Lignocellulose represents a potential supply of sustainable feedstock for the production of biofuels and chemicals. There is, however, an important cost and efficiency challenge associated with the conversion of such lignocellulosics. Since its structure is complex and not prone to undergo chemical reactions very easily, chemical and mechanical pretreatments are usually necessary in order to be able to refine them into the compositional building blocks (carbohydrates and lignin), from which value-added platform molecules such as glucose, ethylene glycol, 5-hydroxymethylfurfural, levulinic acid, etc...
December 6, 2016: ChemSusChem
https://www.readbyqxmd.com/read/27920811/the-use-of-routine-non-density-calibrated-clinical-computed-tomography-data-as-a-potentially-useful-screening-tool-for-identifying-patients-with-osteoporosis
#2
Christopher John Burke, Manjiri M Didolkar, Huiman X Barnhart, Emily N Vinson
OBJECTIVES: To evaluate whether lumbar vertebral body density CT attenuation values measured in Hounsfield Units (HUs) on routine Computed Tomography (CT) examinations can be reliably measured with limited variability, and to evaluate for a correlation between HUs and bone mineral density as measured by dual energy X-ray absorptiometry (DXA) scan. METHODS: Retrospective review of a total of 249 routine MDCT examinations, performed to measure HUs at the first non-rib bearing lumbar vertebral body on axial images, cross-referenced to the lateral scout image...
May 2016: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/27920481/new-real-time-pcr-method-to-identify-single-point-mutations-in-hepatitis-c-virus
#3
Qian Chen, Irene Belmonte, Maria Buti, Leonardo Nieto, Damir Garcia-Cehic, Josep Gregori, Celia Perales, Laura Ordeig, Meritxell Llorens, Maria Eugenia Soria, Rafael Esteban, Juan Ignacio Esteban, Francisco Rodriguez-Frias, Josep Quer
AIM: To develop a fast, low-cost diagnostic strategy to identify single point mutations in highly variable genomes such as hepatitis C virus (HCV). METHODS: In patients with HCV infection, resistance-associated amino acid substitutions within the viral quasispecies prior to therapy can confer decreased susceptibility to direct-acting antiviral agents and lead to treatment failure and virological relapse. One such naturally occurring mutation is the Q80K substitution in the HCV-NS3 protease gene, which confers resistance to PI inhibitors, particularly simeprevir...
November 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27920439/activity-targets-for-nanostructured-platinum-group-metal-free-catalysts-in-hydroxide-exchange-membrane-fuel-cells
#4
Brian P Setzler, Zhongbin Zhuang, Jarrid A Wittkopf, Yushan Yan
Fuel cells are the zero-emission automotive power source that best preserves the advantages of gasoline automobiles: low upfront cost, long driving range and fast refuelling. To make fuel-cell cars a reality, the US Department of Energy has set a fuel cell system cost target of US$30 kW(-1) in the long-term, which equates to US$2,400 per vehicle, excluding several major powertrain components (in comparison, a basic, but complete, internal combustion engine system costs approximately US$3,000). To date, most research for automotive applications has focused on proton exchange membrane fuel cells (PEMFCs), because these systems have demonstrated the highest power density...
December 6, 2016: Nature Nanotechnology
https://www.readbyqxmd.com/read/27919760/proton-therapy-present-and-future
#5
REVIEW
Radhe Mohan, David Grosshans
In principle, proton therapy offers a substantial clinical advantage over the conventional photon therapy. This is because of the unique depth-dose characteristics of protons, which can be exploited to achieve significant reductions in normal tissue doses proximal and distal to the target volume. These may, in turn, allow escalation of tumor doses, greater sparing of normal tissues, thus potentially improving local control and survival while at the same time reducing toxicity and improving quality of life. Protons, accelerated to therapeutic energies ranging from 70 to 250MeV, typically with a cyclotron or a synchrotron, are transported to the treatment room where they enter the treatment head mounted on a rotating gantry...
December 2, 2016: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/27919563/waste-management-in-the-meat-processing-industry-conversion-of-paunch-and-daf-sludge-into-solid-fuel
#6
Ihsan Hamawand, Pam Pittaway, Larry Lewis, Sayan Chakrabarty, Justin Caldwell, Jochen Eberhard, Arpita Chakraborty
This article addresses the novel dewatering process of immersion-frying of paunch and dissolved air flotation (DAF) sludge to produce high energy pellets. Literature have been analysed to address the feasibility of replacing conventional boiler fuel at meat processing facilities with high energy paunch-DAF sludge pellets (capsules). The value proposition of pelleting and frying this mixture into energy pellets is based on a Cost-Benefit Analysis (CBA). The CBA is based on information derived from the literature and consultation with the Australian Meat Processing Industry...
December 2, 2016: Waste Management
https://www.readbyqxmd.com/read/27918680/is-there-an-optimal-pole-length-for-double-poling-in-cross-country-skiing
#7
Franziska Onasch, Anthony Killick, Walter Herzog
The aim of this study was to determine the effects of pole length on energy cost and kinematics in cross country double poling. Seven sub-elite male athletes were tested using pole sets of different lengths (ranging between 77 and 98% of participants' body height). Tests were conducted on a treadmill, set to a 2% incline and an approximate racing speed. Poling forces, contact times, and oxygen uptake were measured throughout the testing. Pole length was positively correlated with ground contact time (r = .57, p < ...
December 5, 2016: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/27917929/adsorption-of-methylene-blue-on-an-agro-waste-oiltea-shell-with-and-without-fungal-treatment
#8
Jiayang Liu, Enzhong Li, Xiaojuan You, Changwei Hu, Qingguo Huang
A lignocellulosic waste oiltea shell (OTS) was evaluated as an inexpensive sorbent to remove methylene blue (MB) from aqueous solution. Fungal treatment of OTS increased the MB adsorption by modifying the physicochemical properties of OTS and simultaneously produced laccase as a beneficial co-product. Without fungal treatment, the maximum amount of adsorption (qm) of MB by OTS was 64.4 mg/g, whereas the treatment with fungus Pycnoporus sp. and Trametes versicolor increased qm up to 72.5 mg/g and 85.7 mg/g, respectively...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917405/efficacy-and-safety-of-3-week-response-guided-triple-direct-acting-antiviral-therapy-for-chronic-hepatitis-c-infection-a-phase-2-open-label-proof-of-concept-study
#9
George Lau, Yves Benhamou, Guofeng Chen, Jin Li, Qing Shao, Dong Ji, Fan Li, Bing Li, Jialiang Liu, Jinlin Hou, Jian Sun, Cheng Wang, Jing Chen, Vanessa Wu, April Wong, Chris L P Wong, Stella T Y Tsang, Yudong Wang, Leda Bassit, Sijia Tao, Yong Jiang, Hui-Mien Hsiao, Ruian Ke, Alan S Perelson, Raymond F Schinazi
BACKGROUND: To shorten the course of direct-acting antiviral agents for chronic hepatitis C virus (HCV) infection, we examined the antiviral efficacy and safety of 3 weeks of response-guided therapy with an NS3 protease inhibitor and dual NS5A inhibitor-NS5B nucleotide analogue. METHODS: In this open-label, phase 2a, single centre study, Chinese patients with chronic HCV genotype 1b infection without cirrhosis were randomly allocated by a computer program to one of three treatment groups (sofosbuvir, ledipasvir, and asunaprevir; sofosbuvir, daclatasvir, and simeprevir; or sofosbuvir, daclatasvir, and asunaprevir) until six patients in each group (1:1:1) achieved an ultrarapid virological response (plasma HCV RNA <500 IU/mL by day 2, measured by COBAS TaqMan HCV test, version 2...
October 2016: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27917177/progress-on-optimizing-miscanthus-biomass-production-for-the-european-bioeconomy-results-of-the-eu-fp7-project-optimisc
#10
Iris Lewandowski, John Clifton-Brown, Luisa M Trindade, Gerard C van der Linden, Kai-Uwe Schwarz, Karl Müller-Sämann, Alexander Anisimov, C-L Chen, Oene Dolstra, Iain S Donnison, Kerrie Farrar, Simon Fonteyne, Graham Harding, Astley Hastings, Laurie M Huxley, Yasir Iqbal, Nikolay Khokhlov, Andreas Kiesel, Peter Lootens, Heike Meyer, Michal Mos, Hilde Muylle, Chris Nunn, Mensure Özgüven, Isabel Roldán-Ruiz, Heinrich Schüle, Ivan Tarakanov, Tim van der Weijde, Moritz Wagner, Qingguo Xi, Olena Kalinina
This paper describes the complete findings of the EU-funded research project OPTIMISC, which investigated methods to optimize the production and use of miscanthus biomass. Miscanthus bioenergy and bioproduct chains were investigated by trialing 15 diverse germplasm types in a range of climatic and soil environments across central Europe, Ukraine, Russia, and China. The abiotic stress tolerances of a wider panel of 100 germplasm types to drought, salinity, and low temperatures were measured in the laboratory and a field trial in Belgium...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27917161/the-interaction-between-plants-and-bacteria-in-the-remediation-of-petroleum-hydrocarbons-an-environmental-perspective
#11
REVIEW
Panagiotis Gkorezis, Matteo Daghio, Andrea Franzetti, Jonathan D Van Hamme, Wouter Sillen, Jaco Vangronsveld
Widespread pollution of terrestrial ecosystems with petroleum hydrocarbons (PHCs) has generated a need for remediation and, given that many PHCs are biodegradable, bio- and phyto-remediation are often viable approaches for active and passive remediation. This review focuses on phytoremediation with particular interest on the interactions between and use of plant-associated bacteria to restore PHC polluted sites. Plant-associated bacteria include endophytic, phyllospheric, and rhizospheric bacteria, and cooperation between these bacteria and their host plants allows for greater plant survivability and treatment outcomes in contaminated sites...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27917031/a-new-perspective-on-sustainable-soil-remediation-case-study-suggests-novel-fungal-genera-could-facilitate-in-situ-biodegradation-of-hazardous-contaminants
#12
L M Czaplicki, E Cooper, P L Ferguson, H M Stapleton, R Vilgalys, C K Gunsch
Deciding upon a cost effective and sustainable method to address soil pollution is a challenge for many remedial project managers. High pressure to quickly achieve cleanup goals pushes for energy-intensive remedies that rapidly address the contaminants of concern with established technologies, often leaving little room for research and development especially for slower treatment technologies, such as bioremediation, for the more heavily polluted sites. In the present case study, new genomic approaches have been leveraged to assess fungal biostimulation potential in soils polluted with particularly persistent hydrophobic contaminants...
2016: Remediation (N Y)
https://www.readbyqxmd.com/read/27916004/sugars-and-health-a-review-of-current-evidence-and-future-policy
#13
Charlotte Elizabeth Louise Evans
The automation of the process of extracting sugars in the 1900s reduced cost and increased availability of sugars leading to a dramatic rise in consumption, which reached a peak in the 1970s. There are different definitions for sugars not naturally available in foods, and free sugars is the term used by WHO. The epidemiological evidence of the associations between sugars and obesity and type 2 diabetes mellitus is fairly strong and consistent, particularly for sugar sweetened drinks in adults. The Department of Health in the UK and many other countries have recently updated their recommendations for free sugars as a result of this scientific evidence...
December 5, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27915222/exoskeleton-plantarflexion-assistance-for-elderly
#14
S Galle, W Derave, F Bossuyt, P Calders, P Malcolm, D De Clercq
Elderly are confronted with reduced physical capabilities and increased metabolic energy cost of walking. Exoskeletons that assist walking have the potential to restore walking capacity by reducing the metabolic cost of walking. However, it is unclear if current exoskeletons can reduce energy cost in elderly. Our goal was to study the effect of an exoskeleton that assists plantarflexion during push-off on the metabolic energy cost of walking in physically active and healthy elderly. Seven elderly (age 69.3±3...
November 28, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27915220/stability-maneuverability-trade-offs-during-lateral-steps
#15
Julian Acasio, Mengnan/Mary Wu, Nicholas P Fey, Keith E Gordon
Selecting a specific foot placement strategy to perform walking maneuvers requires the management of several competing factors, including: maintaining stability, positioning oneself to actively generate impulses, and minimizing mechanical energy requirements. These requirements are unlikely to be independent. Our purpose was to determine the impact of lateral foot placement on stability, maneuverability, and energetics during walking maneuvers. Ten able-bodied adults performed laterally-directed walking maneuvers...
November 23, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27914920/can-lowering-the-guidance-force-of-robot-assisted-gait-training-induce-a-sufficient-metabolic-demand-in-subacute-dependent-ambulatory-stroke-patients
#16
So Young Lee, Eun Young Han, Bo Ryun Kim, Min Ho Chun, Yong Ki Lee
OBJECTIVE: To assess the effects of guidance force (GF) and gait speed (GS) on cardiorespiratory responses and energy cost in subacute dependent ambulatory stroke patients. DESIGN: Cross sectional study. SETTING: University rehabilitation hospital. PARTICIPANTS: Ten subacute stroke patients (mean age: 64.50±19.20), who were dependent ambulators (functional ambulation category [FAC] ≤2). INTERVENTIONS: Patients participated in cardiorespiratory tests during robot-assisted gait training...
November 30, 2016: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/27914435/analysis-and-control-of-multi-zone-sound-field-reproduction-using-modal-domain-approach
#17
Wen Zhang, Thushara D Abhayapala, Terence Betlehem, Filippo Maria Fazi
Multi-zone sound control aims to reproduce multiple sound fields independently and simultaneously over different spatial regions within the same space. This paper investigates the multi-zone sound control problem formulated in the modal domain using the Lagrange cost function and provides a modal-domain analysis of the problem. The Lagrange cost function is formulated to represent a quadratic objective of reproducing a desired sound field within the bright zone and with constraints on sound energy in the dark zone and global region...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27914259/city-scale-analysis-of-water-related-energy-identifies-more-cost-effective-solutions
#18
Ka Leung Lam, Steven J Kenway, Paul A Lant
Energy and greenhouse gas management in urban water systems typically focus on optimising within the direct system boundary of water utilities that covers the centralised water supply and wastewater treatment systems, despite a greater energy influence by the water end use. This work develops a cost curve of water-related energy management options from a city perspective for a hypothetical Australian city. It is compared with that from the water utility perspective. The curves are based on 18 water-related energy management options that have been implemented or evaluated in Australia...
November 26, 2016: Water Research
https://www.readbyqxmd.com/read/27914047/deterministic-search-methods-for-computational-protein-design
#19
Seydou Traoré, David Allouche, Isabelle André, Thomas Schiex, Sophie Barbe
One main challenge in Computational Protein Design (CPD) lies in the exploration of the amino-acid sequence space, while considering, to some extent, side chain flexibility. The exorbitant size of the search space urges for the development of efficient exact deterministic search methods enabling identification of low-energy sequence-conformation models, corresponding either to the global minimum energy conformation (GMEC) or an ensemble of guaranteed near-optimal solutions. In contrast to stochastic local search methods that are not guaranteed to find the GMEC, exact deterministic approaches always identify the GMEC and prove its optimality in finite but exponential worst-case time...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27912153/overground-vs-treadmill-walking-on-biomechanical-energy-harvesting-an-energetics-and-emg-study
#20
Jean-Paul Martin, Qingguo Li
A biomechanical energy harvester is a wearable device that generates electricity from human motion. Walking on a treadmill has been used almost exclusively by researchers for studying the energetic effects of biomechanical energy harvesters and wearable robotics. A treadmill provides the advantage of having long duration trials within a stationary motion capture volume. However, no consensus exists on whether the results from treadmill walking accurately represent overground walking. We aim to investigate how a biomechanical energy harvester performs overground compared to on a treadmill by measuring energy expenditure and muscle activity...
November 19, 2016: Gait & Posture
keyword
keyword
7562
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"