keyword
MENU ▼
Read by QxMD icon Read
search

Cycling power

keyword
https://www.readbyqxmd.com/read/28734504/-relationship-between-family-variables-and-conjugal-adjustment
#1
Nerea Jiménez-Picón, Joaquín-Salvador Lima-Rodríguez, Marta Lima-Serrano
OBJECTIVE: To determine whether family variables, such as type of relationship, years of marriage, existence of offspring, number of members of family, stage of family life cycle, transition between stages, perceived social support, and/or stressful life events are related to conjugal adjustment. DESIGN: A cross-sectional and correlational study using questionnaires. LOCATION: Primary care and hospital units of selected centres in the province of Seville, Spain...
July 19, 2017: Atencion Primaria
https://www.readbyqxmd.com/read/28734050/estimating-synchronous-demographic-changes-across-populations-using-habc-and-its-application-for-a-herpetological-community-from-northeastern-brazil
#2
Marcelo Gehara, Adrian Antonio Garda, Fernanda P Werneck, Eliana F Oliveira, Emanuel Masiero da Fonseca, Felipe Camurugi, Felipe M de Magalhães, Flávia Mol Lanna, Jack W Sites, Ricardo Marques, Ricardo Silveira-Filho, Vinícius A São Pedro, Guarino R Colli, Gabriel C Costa, Frank T Burbrink
Many studies propose that Quaternary climatic cycles contracted and /or expanded the ranges of species and biomes. Strong expansion-contraction dynamics of biomes presume concerted demographic changes of associated fauna. The analysis of temporal concordance of demographic changes can be used to test the influence of Quaternary climate on diversification processes. Hierarchical approximate Bayesian computation (hABC) is a powerful and flexible approach that models genetic data from multiple species, and can be used to estimate the temporal concordance of demographic processes...
July 22, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28732235/medication-takeovers-covert-druggings-and-behavioral-control-in-alzheimer-s
#3
Brandon Berry, Ester Carolina Apesoa-Varano
Older adults consume the most prescription medication in the U.S. For those who develop Alzheimer's disease, risk of medication misuse increases with the progression of the disease. Family members commonly intervene to lessen risks by taking over the management and administering of a medication regimen. Despite the potential for grave harm around the misuse of powerful drugs, few studies provide insight into the household social context of medication use for this disease. Drawing on 60 in-depth interviews conducted in four waves over 2...
July 6, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28731110/a-redox-controlled-electrolyte-for-plasmonic-enhanced-dye-sensitized-solar-cells
#4
Yuqiao Fu, Siu-Pang Ng, Guangyu Qiu, Tak-Fu Hung, Chi-Man Lawrence Wu, Chun-Sing Lee
Plasmonic enhanced dye-sensitized solar cells (DSSCs) with metallic nanostructures suffer from corrosion problems, especially with the presence of the iodine/triiodide redox couple in the electrolyte. Herein, we introduce an alternative approach by compensating the corrosion with a modified liquid electrolyte. In contrast to the existing method of surface preservation for plasmonic nanostructures, the redox-controlled electrolyte (RCE) contains iodoaurate intermediates, i.e. gold(i) diiodide (AuI2(-)) and gold(iii) tetraiodide (AuI4(-)) with optimal concentrations, such that these intermediates are readily reduced to gold nanoparticles during the operation of DSSCs...
July 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28731092/a-ni-p-nico-ldh-core-shell-nanorod-decorated-nickel-foam-with-enhanced-areal-specific-capacitance-for-high-performance-supercapacitors
#5
Jiale Xing, Jing Du, Xuan Zhang, Yubo Shao, Ting Zhang, Cailing Xu
Recently, transition metal-based nanomaterials have played a key role in the applications of supercapacitors. In this study, nickel phosphide (Ni-P) was simply combined with NiCo LDH via facile phosphorization of Ni foam and subsequent electrodeposition to form core-shell nanorod arrays on the Ni foam; the Ni-P@NiCo LDH was then directly used for a pseudocapacitive electrode. Owing to the splendid synergistic effect between Ni-P and NiCo LDH nanosheets as well as the hierarchical structure of 1D nanorods, 2D nanosheets, and 3D Ni foam, the hybrid electrode exhibited significantly enhanced electrochemical performances...
July 21, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28730920/validity-of-a-device-designed-to-measure-braking-power-in-bicycle-disc-brakes
#6
Matthew C Miller, Philip W Fink, Paul William Macdermid, Blake G Perry, Stephen R Stannard
Real-world cycling performance depends not only on exercise capacities, but also on efficiently traversing the bicycle through the terrain. The aim of this study was to determine if it was possible to quantify the braking done by a cyclist in the field. One cyclist performed 408 braking trials (348 on a flat road; 60 on a flat dirt path) over 5 days on a bicycle fitted with brake torque and angular velocity sensors to measure brake power. Based on Newtonian physics, the sum of brake work, aerodynamic drag and rolling resistance was compared with the change in kinetic energy in each braking event...
July 21, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28730675/hierarchical-hybrids-integrated-by-dual-polypyrrole-based-porous-carbons-for-enhanced-capacitive-performance
#7
Zhiwei Li, Nannan Chen, Hongyu Mi, Junhong Ma, Yahong Xie, Jieshan Qiu
Architectural design of nitrogenous polymer-based carbons represents a facile and efficient strategy in performance improvement because of their morphological diversity, tailorability, and N-containing structure. In this research, polypyrrole-derived porous carbons (A-PCS and A-PCT) in zero- and one-dimensional (0D and 1D) forms are first integrated to nitrogen-doped hierarchically porous A-PCS/PCT hybrids through an easy multi-step method. This integration, along with chemical activation, prevents serious agglomeration of carbon particles or tubes and creates a through-connected porous network structure, leading to the improved textural properties (high surface area of 1684 m2 g-1, high pore volume of 1...
July 21, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28728789/evaluation-of-the-environmental-sustainability-of-different-waste-to-energy-plant-configurations
#8
Lidia Lombardi, Ennio A Carnevale
Residual municipal solid waste (MSW) has an average lower heating value higher than 10GJ/Mg in the EU, and can be recovered in modern Waste-to-Energy (WtE) plants, producing combined heat and power (CHP) and reaching high levels of energy recovery. CHP is pinpointed as the best technique for energy recovery from waste. However, in some cases, heat recovery is not technically feasible - due to the absence of a thermal user (industrial plant or district heating) in the vicinity of the WtE plant - and power production remains the sole possibility...
July 17, 2017: Waste Management
https://www.readbyqxmd.com/read/28726745/dual-source-linear-energy-prediction-line-p-model-in-the-context-of-wsns
#9
Faisal Ahmed, Gert Tamberg, Yannick Le Moullec, Paul Annus
Energy harvesting technologies such as miniature power solar panels and micro wind turbines are increasingly used to help power wireless sensor network nodes. However, a major drawback of energy harvesting is its varying and intermittent characteristic, which can negatively affect the quality of service. This calls for careful design and operation of the nodes, possibly by means of, e.g., dynamic duty cycling and/or dynamic frequency and voltage scaling. In this context, various energy prediction models have been proposed in the literature; however, they are typically compute-intensive or only suitable for a single type of energy source...
July 20, 2017: Sensors
https://www.readbyqxmd.com/read/28725528/battery-supercapacitor-hybrid-devices-recent-progress-and-future-prospects
#10
REVIEW
Wenhua Zuo, Ruizhi Li, Cheng Zhou, Yuanyuan Li, Jianlong Xia, Jinping Liu
Design and fabrication of electrochemical energy storage systems with both high energy and power densities as well as long cycling life is of great importance. As one of these systems, Battery-supercapacitor hybrid device (BSH) is typically constructed with a high-capacity battery-type electrode and a high-rate capacitive electrode, which has attracted enormous attention due to its potential applications in future electric vehicles, smart electric grids, and even miniaturized electronic/optoelectronic devices, etc...
July 2017: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
https://www.readbyqxmd.com/read/28724253/acceleration-of-organic-removal-and-electricity-generation-from-dewatered-oily-sludge-in-a-bioelectrochemical-system-by-rhamnolipid-addition
#11
Yunshu Zhang, Qingliang Zhao, Junqiu Jiang, Kun Wang, Liangliang Wei, Jing Ding, Hang Yu
Conversion of biomass energy of dewatered oily sludge to electricity is the rate-limiting process in bioelectrochemical system (BES). In this study, 2mgg(-1) rhamnolipids were added to dewatered oily sludge, resulting in a significant enhancement in maximum power density from 3.84±0.37 to 8.63±0.81Wm(-3), together with an increase in total organic carbon (TOC) and total petroleum hydrocarbon (TPH) removal from 24.52±4.30 to 36.15±2.79mgg(-1) and 29.51±3.30 to 39.80±2.47mgg(-1), respectively. Rhamnolipids can also enhance the solubilization and promote the hydrolysis of dewatered oily sludge with increases in SOCD from 14...
July 8, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28721747/faster-v%C3%AC-o2-kinetics-after-priming-exercises-of-different-duration-but-same-fatigue
#12
Felipe Mattioni Maturana, Arthur Peyrard, John Temesi, Guillaume Y Millet, Juan M Murias
This study compared the responses of two priming exercises of similar fatigue on the adjustment of the oxygen uptake time constant (τV̇O2) in cycling. Ten healthy young adults (25 ± 3 yr) performed: three step transitions from a 20-W baseline to the power output (PO) below the gas exchange threshold (MOD, MODPRE); a 3-min bout (P3MIN) at 90% of peak PO (POpeak), followed by MOD (MOD3MIN); and a 6-min bout (P6MIN) at 80% of POpeak, followed by MOD (MOD6MIN). The O2 supply-to-O2 demand ([HHb]/V̇O2) ratio was calculated for MODPRE, MOD3MIN, and MOD6MIN...
July 19, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28721360/technical-data-for-concentrated-solar-power-plants-in-operation-under-construction-and-in-project
#13
Ugo Pelay, Lingai Luo, Yilin Fan, Driss Stitou, Mark Rood
This article presents technical data for concentrated solar power (CSP) plants in operation, under construction and in project all over the world in the form of tables. These tables provide information about plants (e.g., name of the CSP plant, country of construction, owner of the plant, aim of the plant) and their technical characteristics (e.g., CSP technology, solar power, area of the plant, presence and type of hybridization system, electricity cost, presence and type of TES, power cycle fluid, heat transfer fluid, operating temperature, operating pressure, type of turbine, type and duration of storage, etc...
August 2017: Data in Brief
https://www.readbyqxmd.com/read/28720739/-disorder-of-gastric-myoelectric-activity-in-patients-with-cerebral-infarction-electrogastrographic-assessment
#14
Fumihiko Kinekawa, Noboru Sasaoka, Kazuya Matsuda, Yuko Kita, Ryoichi Okura, Ryota Nakabayashi, Akiko Ohara, Katsuyuki Nakao, Toshihiko Inoue, Michiaki Tokuda, Yohei Kokudo, Tsutomu Masaki
In this study, gastric myoelectric activity in patients with acute cerebral infarction was investigated using electrogastrography. The patients were divided into four groups; those with mild brainstem infarction(group A, n=13, men:8, women:5, 75±2 years old), severe brainstem infarction(group B, n=6, men:4, women:2, 79±4 years old), mild non-brainstem infarction(group C, n=14, men:7, women:7, 76±3 years old), and severe non-brainstem infarction(group D, n=9, men:3, women:6, 87±2 years old). In group B, the% ratio of normogastria(2...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28719750/electrostatic-interaction-assisted-construction-of-3d-networks-of-manganese-dioxide-nanosheets-for-flexible-high-performance-solid-state-asymmetric-supercapacitors
#15
Na Liu, Yan Li Su, Zhiqiang Wang, Zhen Wang, Jinsong Xia, Yong Chen, Zhigang Zhao, Qingwen Li, Fengxia Geng
A three-dimensional (3D) macroscopic network of manganese oxide MnO2 sheets was firstly synthesized by an easily scalable solution approach, grafting the negatively charged surfaces of the MnO2 sheets with an aniline monomer by electrostatic interactions followed by a quick chemical oxidizing polymerization reaction. The obtained structure possessed MnO2 sheets interconnected with polyaniline chains, producing a 3D monolith rich of mesopores. The MnO2 sheets had almost all their reactive centers exposed on the electrode surface, combining with the electron transport highways provided by polyaniline and the shortened diffusion paths provided by the porous structure, the deliberately designed electrode achieved excellent capacitance of 762 F g-1 at a current of 1 A g-1 and cycling performance with a capacity retention of 90% over 8000 cycles...
July 18, 2017: ACS Nano
https://www.readbyqxmd.com/read/28719138/chevrel-phase-mo6-t8-t-s-se-as-electrodes-for-advanced-energy-storage
#16
REVIEW
Lin Mei, Jiantie Xu, Zengxi Wei, Huakun Liu, Yutao Li, Jianmin Ma, Shixue Dou
With the large-scale applications of electric vehicles in recent years, future batteries are required to be higher in power and possess higher energy densities, be more environmental friendly, and have longer cycling life, lower cost, and greater safety than current batteries. Therefore, to develop alternative electrode materials for advanced batteries is an important research direction. Recently, the Chevrel phase Mo6 T8 (T = S, Se) has attracted increasing attention as electrode candidate for advanced batteries, including monovalent (e...
July 18, 2017: Small
https://www.readbyqxmd.com/read/28718344/knee-extensor-fatigue-developed-during-high-intensity-exercise-limits-lower-limb-power-production
#17
Steven J O'bryan, François Billaut, Janet L Taylor, David M Rouffet
We investigated the association between changes in vastii electromyography (EMG) and knee extensor fatigue during high-intensity cycling, and the subsequent effect on lower-limb power and intermuscular coordination during all-out cycling. On two separate days, participants completed 30-s all-out cycling or 10-min of high-intensity cycling followed by 30-s all-out cycling. EMG for gluteus maximus (GMAX), rectus femoris (RF), vastii (VAS), hamstrings (HAM) and gastrocnemius (GAS); co-activation for GMAX/RF, VAS/HAM and VAS/GAS; isometric maximal voluntary force (IMVF) and resting twitch (RT) of the knee extensors were measured...
July 18, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28718188/weaning-premature-infants-from-nasal-continuous-positive-airway-pressure-current-practice-and-scientific-evidence
#18
André Kidszun, Christine Arnold, Julia Winter, Catharina Whybra-Trümpler, Eva Mildenberger
Objective In the past decade, a number of trials have been conducted to determine the optimal strategy of weaning premature infants from nasal continuous airway pressure (nCPAP). However, a paucity of information exists on how weaning is actually performed in clinical routine. Aim of this study was to investigate the current practice of weaning premature infants from nCPAP in Germany. Methods An online survey was performed in German tertiary care neonatal units. Results All 160 German tertiary care units were contacted...
July 2017: Klinische Pädiatrie
https://www.readbyqxmd.com/read/28716411/genetic-mitigation-strategies-to-tackle-agricultural-ghg-emissions-the-case-for-biological-nitrification-inhibition-technology
#19
REVIEW
G V Subbarao, J Arango, K Masahiro, A M Hooper, T Yoshihashi, Y Ando, K Nakahara, S Deshpande, I Ortiz-Monasterio, M Ishitani, M Peters, N Chirinda, L Wollenberg, J C Lata, B Gerard, S Tobita, I M Rao, H J Braun, V Kommerell, J Tohme, M Iwanaga
Accelerated soil-nitrifier activity and rapid nitrification are the cause of declining nitrogen-use efficiency (NUE) and enhanced nitrous oxide (N2O) emissions from farming. Biological nitrification inhibition (BNI) is the ability of certain plant roots to suppress soil-nitrifier activity, through production and release of nitrification inhibitors. The power of phytochemicals with BNI-function needs to be harnessed to control soil-nitrifier activity and improve nitrogen-cycling in agricultural systems. Transformative biological technologies designed for genetic mitigation are needed, so that BNI-enabled crop-livestock and cropping systems can rein in soil-nitrifier activity, to help reduce greenhouse gas (GHG) emissions and globally make farming nitrogen efficient and less harmful to environment...
September 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28715859/influence-of-newly-synthesized-geminal-dicationic-ionic-liquid-on-electrochemical-and-pseudocapacitance-performance-of-conductive-polymer-electroactive-film
#20
A Ehsani, E Kowsari, F Boorboor Ajdari, R Safari, H Mohammad Shiri
In present work, for improving the electrochemical performance of conductive polymer, POAP/3-methyl-1-[2-(2-{2-[2-[(3-methyl-1-H-imidazol-3-ium-1-yl)ethoxy]ethoxy}-ethoxy)ethyl]-1-H-imidazol-3-ium dichloride (MIEID) composite films have been fabricated by poly ortho aminophenol (POAP) electropolymerization in the presence of MIEID as active electrodes for electrochemical supercapacitors. Different electrochemical methods including galvanostatic charge discharge experiments, cyclic voltammetry and electrochemical impedance spectroscopy have been applied to study the system performance...
July 3, 2017: Journal of Colloid and Interface Science
keyword
keyword
3939
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"