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Babuskin Srinivasan S Centre for Biotechnology, Anna University, Chennai, 600 025, - - 2014
Biomass and lipid productivities of Isochrysis galbana were optimized using nutrients of molasses (4, 8, 12 g l(-1)), glucose (4, 8, 12 g l(-1)), glycerol (4, 8, 12 g l(-1)) and yeast extract (2 g l(-1)). Combinations of carbon sources at different ratios were evaluated in which the alga was grown at three different light intensities (50, 100 ...
Pu Maoping M Department of Organic Chemistry, Stockholm University , Arrhenius Laboratory, Stockholm 10691, - - 2014
The role of the intra- and intermolecular motion, i.e., molecular vibrations and the relative motion of reactants, remains largely unexplored in the frustrated Lewis acid/base chemistry. Here, we address the issue with the ab initio molecular dynamics (AIMD) study of CO2 binding by a Lewis acid (LA) and a Lewis ...
Huang Shu-Ping SP University of Haifa at Oranim, - - 2014
During discontinuous gas exchange cycles in insects, spiracular opening follows a typical prolonged period of spiracle closure. Gas exchange with the environment occurs mostly during the period of full spiracular opening. In this study we tested the hypothesis that recently reported ventilatory movements during the spiracle closure period serve to ...
Wargocki Pawel P International Centre for Indoor Environment and Energy (ICIEE), DTU Civil Engineering, Technical University of Denmark - - 2014
Carbon dioxide (CO2) sensors that provide a visual indication were installed in classrooms during normal school operation. During two-week periods, teachers and students were instructed to open the windows in response to the visual CO2 feedback in one week and open them, as they would normally do, without visual feedback, ...
Weyant Cheryl L - - 2014
Thirteen South Asian brick kilns were tested to quantify aerosol and gaseous pollutant emissions. Particulate matter (PM2.5), carbon monoxide (CO) and optical scattering and absorption measurements in the exhaust of six kiln technologies demonstrate differences in overall emission profiles and relative climate warming resulting from kiln design and fuel choice. ...
Sastre Francesc - - 2014
Ni supported on silica-alumina is an efficient and reusable photocatalyst for the reduction of CO2 by H2 to methane reaching selectivity above 95 % at CO2 conversions over 90 %. Although NiO behaves similarly, it undergoes a gradual deactivation upon reuse. The photocatalytic activity of Ni/silica-alumina under solar light derives ...
Shrestha Rijana R School of Earth and Environmental Sciences, Seoul National University, Seoul, 151-742, - - 2014
We investigated the contribution of volatile aerosols in light-absorption measurement by three filter-based optical instruments [aethalometer, continuous light-absorption photometer (CLAP), and continuous soot monitoring system (COSMOS)] at Gosan Climate Observatory (GCO) from February to June 2012. The aerosol absorption coefficient (σ abs) and the equivalent black carbon (BC) mass concentration ...
Andres Christine M CM Department of Chemical Engineering, University of Michigan , Ann Arbor, Michigan 48109, United - - 2014
Nature provides a vast array of solid materials that repeatedly and reversibly transform in shape in response to environmental variations. This property is essential, for example, for new energy-saving technologies, efficient collection of solar radiation, and thermal management. Here we report a similar shape-morphing mechanism using differential swelling of hydrophilic ...
Wang Lei L School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, 450001, P.R. China. - - 2014
Single-walled carbon nanotubes (SWNTs) possess unique physical and chemical properties, which make them very attractive for a wide range of applications. In particular, SWNTs and their composites have shown a great potential for photodynamic therapy (PDT). SWNTs have usually been used for photothermal therapy; herein, the photodynamic effect of two ...
Khasminskaya Svetlana S Institute of Nanotechnology, Karlsruhe Institute of Technology, 76021, Karlsruhe, - - 2014
We demonstrate how light from an electrically-driven carbon-nanotube can be coupled directly into a photonic waveguide architecture. Waferscale, broadband sources are realized integrated with nanophotonic circuits allowing for propagation of light over centimeter distances. Moreover, we show that the spectral properties of the emitter can be controlled directly on chip ...
Sathishkumar Panneerselvam P Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, Faculty of Engineering, University of Concepcion, Concepcion 407-0409, Chile; Department of Chemistry, Periyar Maniammai University, Vallam, Thanjavur 613403, Tamil Nadu, India. Electronic address: - - 2014
An attempt has been made to render the visible light driven photocatalytic activity to the TiO2 nanocatalysts by loading 1 wt% of rare earth (RE) nanoclusters (Gd(3+), Nd(3+) and Y(3+)) using a low frequency (42kHz) producing commercial sonicator. The STEM-HAADF analysis confirms that the RE nanoclusters were residing at the ...
Polley Debanjan - - 2014
We investigate the shielding effectiveness and complex conductivity of single-walled carbon nanotubes (SWNT) distributed in a polyvinyl alcohol (PVA) matrix in the THz frequency range. SWNTs are dispersed in PVA matrices with varying SWNT content (keeping the thickness of SWNT/PVA film constant) using a slow-drying method, and terahertz time-domain spectroscopy ...
Velasco Leticia F LF Department of Chemical Processes in Energy and Environment, Instituto Nacional del Carbon (INCAR, CSIC), C/Francisco Pintado Fe 26, 33011 Oviedo - - 2014
By using monochromatic light the ability of semiconductor-free nanoporous carbons to convert the low-energy photons from the visible spectrum into chemical reactions (i.e. phenol photooxidation) is demonstrated. Data shows that the onset wavelength of the photochemical activity can be tuned by surface functionalization, with enhanced visible-light conversion upon introducing N-containing ...
Stalder Aurelien F AF Siemens AG, Healthcare Sector, Erlangen, - - 2014
Use repeated stress paradigms and an approach taken from neurological blood oxygen level dependent (BOLD) functional MRI (fMRI) to derive robust cardiac BOLD measurements. Multiple-repetition, single-shot, electrocardiograph-triggered, T2-prepared BOLD balanced steady-state free precession was performed during repeated long breath-holds in 13 volunteers. Nonrigid motion correction was applied to the continuously ...
Bian Juncao - - 2014
Photoelectrochemcial properties (PEC) of TiO2 nanorod arrays (TNRA) have been extensively investigated as they are photostable and cost effective. However, due to the wide band gap, only the UV part of solar light can be employed by TiO2. To enhance the photo-response of TNRA in the visible range, carbon dots ...
Mor Avishai A Weizmann Institute of - - 2014
The production of singlet oxygen is typically associated with inefficient dissipation of photosynthetic energy or can arise from light reactions due to accumulation of chlorophyll precursors as observed in flu-like mutants. Such photodynamic production of singlet oxygen is thought to be involved in stress signaling and programmed cell death. Here ...
Tirumani Srikanth S B-202, Department of Biological Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai, 400005, - - 2014
We have investigated transcript level changes of CO2-concentrating mechanism (CCM) genes during light-dark (12 h:12 h) cycles in synchronized Chlamydomonas reinhardtii at air-level CO2. CCM gene transcript levels vary at various times of light-dark cycles, even at same air-level CO2. Transcripts of inorganic carbon transporter genes (HLA3, LCI1, CCP1, CCP2 and LCIA) ...
Torop Janno J IMS Lab, Institute of Technology, University of Tartu , Nooruse 1, 50411 Tartu, - - 2014
Low-voltage stimuli-responsive actuators based on carbide-derived carbon (CDC) porous structures were demonstrated. Bending actuators showed a differential electromechanical response defined by the porosity of the CDC used in the electrode layer. Highly porous CDCs prepared from TiC (mainly microporous), B4C (micromesoporous), and Mo2C (mainly mesoporous) precursors were selected to demonstrate ...
Darias-González J G JG Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN), P.O.B. 6122, Miramar, La Habana, - - 2014
Submerged electric arc discharge in liquids has shown to be a promising method for synthesizing a wide variety of nanomaterials. However, it requires an accurate current stability control to ensure the desired purity and structure of the products. The discharge stability control through light emission has been previously studied, but ...
Vyas Anshul A - - 2014
Carbon nanotubes (CNTs) and carbon nanofibers (CNFs) are potential materials for high-performance electronic devices and circuits due to their light weight and excellent electrical properties such as high current capacity and tolerance to electromigration. In addition, at high frequencies, these materials exhibit transport behavior which holds special promise for applications ...
Hikosaka Kouki K Graduate School of Life Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan; CREST, JST, Japan. - - 2014
Nitrogen distribution within a leaf canopy is an important determinant of canopy carbon gain. Previous theoretical studies have predicted that canopy photosynthesis is maximized when the amount of photosynthetic nitrogen is proportionally allocated to the absorbed light. However, most of such studies used a simple Beer's law for light extinction ...
Barth Johannes J University of Muenster, - - 2014
Light and oxygen are factors that are very much entangled in the reactive oxygen species (ROS) stress response network in plants, algae and cyanobacteria. The first obligatory step in understanding the ROS network is to separate these responses. In this study, a LC-MS/MS based quantitative proteomic approach was used to ...
Soto William W Department of Ecology, Evolution, & Behavior, University of Minnesota-Twin Cities, 100 Ecology Building, 1987 Upper Buford Circle, Saint Paul, MN, 55108, USA, - - 2014
Vibrio fischeri isolated from Euprymna scolopes (Cephalopoda: Sepiolidae) was used to create 24 lines that were serially passaged through the non-native host Euprymna tasmanica for 500 generations. These derived lines were characterized for biofilm formation, swarming motility, carbon source utilization, and in vitro bioluminescence. Phenotypic assays were compared between "ES" ...
Zhang Xiaobo X 1] Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720, USA [2] Berkeley Sensor and Actuator Center, University of California, Berkeley, California 94720, USA [3] Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, - - 2014
Direct conversion of light into mechanical work, known as the photomechanical effect, is an emerging field of research, largely driven by the development of novel molecular and polymeric material systems. However, the fundamental impediment is that the previously explored materials and structures do not simultaneously offer fast and wavelength-selective response, ...
Haas Andreas F AF Department of Biology, San Diego State University , United States ; Scripps Institution of Oceanography, University of California , San Diego , United - - 2014
While shifts from coral to seaweed dominance have become increasingly common on coral reefs and factors triggering these shifts successively identified, the primary mechanisms involved in coral-algae interactions remain unclear. Amongst various potential mechanisms, algal exudates can mediate increases in microbial activity, leading to localized hypoxic conditions which may cause ...
Tong Xiaojuan X College of Forestry, Beijing Forestry University, Beijing, - - 2014
To investigate the impacts of biophysical factors on light response of net ecosystem exchange (NEE), CO2 flux was measured using the eddy covariance technique in a winter wheat field in the North China Plain from 2003 to 2006. A rectangular hyperbolic function was used to describe NEE light response. Maximum ...
Tatar Yasar Y Faculty of Medicine, Physical Medicine and Rehabilitation Department, Prosthetics-Orthotics and Rehabilitation - - 2014
In football, injuries from opponent contact occur commonly in the lower extremities. FIFA the world's governing body for football requires players to wear shin guards. The aim of this study was to compare the protective effectiveness of polypropylene based shin guards with custom-made carbon fiber ones. Three commercial polypropylene shin ...
NeaČ›u Stefan S Instituto Universitario de Tecnología Química CSIC-UPV, Universidad Politécnica de Valencia, Av. De los Naranjos s/n, 46022 Valencia, Spain. - - 2014
The reduction of carbon dioxide to useful chemicals has received a great deal of attention as an alternative to the depletion of fossil resources without altering the atmospheric CO2 balance. As the chemical reduction of CO2 is energetically uphill due to its remarkable thermodynamic stability, this process requires a significant ...
Rodriguez Irene B IB Research Center for Environmental Changes, Academia Sinica, Taipei, - - 2014
Trichodesmium, a nonheterocystous cyanobacterium widely abundant in the surface water of the tropical and subtropical ocean, fixes dinitrogen under high light conditions while concurrently undergoing photosynthesis. The new production considerably influences the cycling of nitrogen and carbon in the ocean. Here, we investigated how light intensity and nickel (Ni) availability ...
Liu Zhongfang Z 1] Tianjin Key Laboratory of Water Resource and Environment, Tianjin Normal University, Tianjin 300387, China [2] Atmosphere and Ocean Research Institute, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa 277-8568, - - 2014
The Pacific North American (PNA) teleconnection has a strong influence on North American climate. Instrumental records and century-scale reconstructions indicate an accelerating tendency towards the positive PNA state since the mid-1850s, but much less is known about long-term PNA variability. Here we reconstruct PNA-like climate variability during the mid- and ...
Guo Xia X School of Electrical Information and Control Engineering, Beijing University of Technology, Beijing 100124, China. - - 2014
Transparent conductive current-spreading layer is important for quantum efficiency and thermal performance of light-emitting diodes (LEDs). The increasing demand for tin-doped indium oxide (ITO) caused the price to greatly increase. Super-aligned carbon nanotubes (SACNTs) and Au-coated SACNTs as current-spreading layer were applied on AlGaInP LEDs. The LEDs with Au-coated SACNTs ...
Lu Hai-Bo HB School of Mechanical and Chemical Engineering, The University of Western Australia, 35 Stirling Hwy, Crawley, WA 6009, - - 2013
A novel high flux bright light-driven high temperature spinning disc processor operating at ∼720 °C can effectively synthesise carbon nanofibres from fructose, a natural feedstock, in polyethylene glycol-200, within minutes and with multiple reactor passes being a pivotal operating parameter in controlling the growth of the fibres.
White Kevin Lee - - 2013
The rheological behaviors of clustered and disentangled MWCNTs dispersed in a stable, non-reactive Newtonian epoxy fluid have been investigated. Suspensions of untreated and chemically oxidized MWCNTs in epoxy show strong rate-dependent behavior and long-time elastic response that is characteristic of a flocculated microstructure. Suspensions of disentangled MWCNTs in epoxy were ...
Xu Wenya W Printable Electronics Research Centre, Suzhou Institute of Nanotech and nano-bionics, Chinese Academy of Sciences, No. 398 Ruoshui Road, SEID, Suzhou Industrial Park, Suzhou, Jiangsu Province 215123, PR - - 2013
A novel approach was developed to sort a large-diameter semiconducting single-walled carbon nanotube (sc-SWCNT) based on copolyfluorene derivative with high yield. High purity sc-SWCNTs inks were obtained by wrapping arc-discharge SWCNTs with poly[2,7-(9,9-dioctylfluorene)-alt-4,7-bis(thiophen-2-yl)benzo-2,1,3-thiadiazole] (PFO-DBT) aided by sonication and centrifugation in tetrahydrofuran (THF). The sorted sc-SWCNT inks and nanosilver inks were ...
Wu Xia-yuan - - 2013
In this study, a modified microbial fuel cell (MFC) with a tubular photobioreactor (PHB) configuration as a cathode compartment was constructed by introducing Chlorella vulgaris to the cathode chamber used to generate oxygen in situ. Two types of cathode materials and light/dark cycles were used to test the effect on ...
Eichler A - - 2013
Nanotubes behave as semi-flexible polymers in that they can bend by a sizeable amount. When integrating a nanotube in a mechanical resonator, the bending is expected to break the symmetry of the restoring potential. Here we report on a new detection method that allows us to demonstrate such symmetry breaking. ...
Li Haitao - - 2013
Developing light-driven acid catalyst will be very meaningful for the controlled-acid catalytic processes towards a green chemical industry. Here, based on scanning electrochemical microscopy (SECM) and ΔpH testing, we demonstrate that the 5-10 nm carbon quantum dots (CQDs) synthesized by electrochemical ablation of graphite have strong light-induced proton properties under ...
Bellasio Chandra - - 2013
The C4 photosynthesis carbon concentrating mechanism (CCM) in maize has two CO2 delivery pathways to the Bundle Sheath (BS) (respectively via malate, MAL or aspartate, ASP), and rates of PGA reduction, starch synthesis and PEP regeneration also vary between BS and Mesophyll (M) cells. The theoretical partitioning of ATP supply ...
Rabouille Sophie - - 2013
Incompatibility of nitrogen fixation and oxygen production compel unicellular diazotrophic cyanobacteria to perform photosynthesis during daytime and restrict nitrogen fixation to nighttime. The marine diazotroph Cyanothece BG 043511 was grown in continuous culture under three light:dark regimes (16L:8D, 12L:12D and 8L:16D hours); we monitored nitrogen fixation and potential photosynthetic efficiency ...
Maitra Urmimala - - 2013
Two sorts of MoS2 : A single-layer, metallic form of MoS2 (1T-MoS2 ) and a nanocomposite of a second form of MoS2 (few-layer 2H-MoS2 ) with heavily nitrogenated reduced graphene oxide (NRGO; N content ca. 15 %) show outstanding performance in the production of H2 under visible-light illumination.
Wu Xiaoyong - - 2013
A nice visible light responsive C-doped NaTaO3 (C-NaTaO3) particle has been successfully prepared by a facile solvothermal method using water-ethylene glycol mixed solutions as solvent. The results presented that the carbon could be easily incorporated in NaTaO3 from ethylene glycol during a solvothermal reaction, finally leading to excellent visible light ...
Xue Jiachen - - 2013
Ordered mesoporous carbons exhibit appealing properties for many applications, but their function and performance can depend critically on their structure. The in-plane orientation of 2D cylinders from the cooperative assembly of Pluronic P123 and resol has been controlled by application of cold zone annealing (CZA). By varying the moving rate, ...
Muthuraj Muthusivaramapandian - - 2013
Quantification of carbon flux distribution in the metabolic network of microalgae remains important to understand the complex interplay between energy metabolism, carbon fixation, and assimilation pathways. This is even more relevant with respect to cyclic metabolism of microalgae under light-dark cycle. In the present study, flux balance analysis (FBA) was ...
Nicholl M - - 2013
Super-luminous supernovae that radiate more than 10(44) ergs per second at their peak luminosity have recently been discovered in faint galaxies at redshifts of 0.1-4. Some evolve slowly, resembling models of 'pair-instability' supernovae. Such models involve stars with original masses 140-260 times that of the Sun that now have carbon-oxygen ...
Xu Pan - - 2013
Trifluoromethylation/arylation: N-aryl acrylamides undergo visible-light-induced tandem trifluoromethylation/arylation in the presence of a ruthenium photocatalyst with Togni's reagent as the CF3 source. This reaction serves as a powerful and ecofriendly synthetic method for the preparation of a variety of CF3 -containing oxindoles bearing a quaternary carbon center.
Hernandez-Perez Augusto C - - 2013
The photosynthetic preparation of N-aryl- and N-alkyl-bearing carbazoles utilizes continuous flow, visible light, and an in situ formed Cu-based sensitizer. The method is mild and efficient, and allows the straightforward synthesis of a variety of carbazoles with different substituents, heterocycles, and complex carbon architectures.
Yang Hao-Cheng - - 2013
We report a simple and facile protocol to fabricate mussel-inspired polydopamine (PDA) gradients on different surfaces. An oxygen diffusion phenomenon was used for dopamine autoxidation to form thickness gradients of PDA on different substrates. These PDA gradients showed gradual changes in thickness, roughness, wettability and light transmittance.
Schreinemakers J Rieneke C - - 2013
The majority of Dutch F-16 pilots experience in-flight oxygen mask related nasal discomfort and injury. We aimed to analyze the fit of the oxygen mask. We successfully scanned 35 pilots with a 3D scanner to measure the distance between the contact area on the nose and the oxygen mask in ...
Maeda Kazuhiko - - 2013
A polymeric carbon nitride semiconductor is demonstrated to photocatalyse CO2 reduction to formic acid under visible light (λ > 400 nm) with a high turnover number (>200 for 20 hours) and selectivity (>80%), when coupled with a molecular ruthenium complex as a catalyst.
Wu Xia-Yuan - - 2013
In this study, a modified microbial fuel cell (MFC) with a tubular photobioreactor (PHB) configuration as a cathode compartment was constructed by introducing Chlorella vulgaris to the cathode chamber used to generate oxygen in situ. Two types of cathode materials and light/dark cycles were used to test the effect on ...
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