keyword
MENU ▼
Read by QxMD icon Read
search

paper mill

keyword
https://www.readbyqxmd.com/read/28222384/direct-catalytic-production-of-sorbitol-from-waste-cellulosic-materials
#1
Lucília Sousa Ribeiro, José J de Melo Órfão, Manuel Fernando Ribeiro Pereira
Cotton wool, cotton textile, tissue paper and printing paper, all potential waste cellulosic materials, were directly converted to sorbitol using a Ru/CNT catalyst in the presence of H2 and using only water as solvent, without any acids. Conversions up to 38% were attained for the raw substrates, with sorbitol yields below 10%. Ball-milling of the materials disrupted their crystallinity, allowing reaching 100% conversion of cotton wool, cotton textile and tissue paper after 4h, with sorbitol yields around 50%...
February 8, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28221803/effects-of-thickness-on-the-metal-insulator-transition-in-free-standing-vanadium-dioxide-nanocrystals
#2
Mustafa M Fadlelmula, Engin Can Sürmeli, Mehdi Ramezani, Talip Serkan Kasırga
Controlling solid state phase transitions via external stimuli offers rich physics along with possibilities of unparalleled applications in electronics and optics. The well-known metal-insulator transition (MIT) in vanadium dioxide (VO2) is one instance of such phase transitions emerging from strong electronic correlations. Inducing the MIT using electric field has been investigated extensively for the applications in electrical and ultrafast optical switching. However, as the Thomas-Fermi screening length is very short, for considerable alteration in the material's properties with electric field induced MIT, crystals below 10 nm are needed...
February 21, 2017: Nano Letters
https://www.readbyqxmd.com/read/28219376/cooperate-a-paradigm-shift-for-health-equity
#3
REVIEW
Wei-Ching Chang, Joy H Fraser
The role of competition and cooperation in relation to the goal of health equity is examined in this paper. The authors explain why the win-lose mentality associated with avoidable competition is ethically questionable and less effective than cooperation in achieving positive outcomes, particularly as it relates to health and health equity. Competition, which differentiates winners from losers, often with the winner-takes-all reward system, inevitably leads to a few winners and many losers, resulting in social inequality, which, in turn, engenders and perpetuates health inequity...
February 21, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28215752/sex-after-60-you-ve-got-to-be-joking-senior-sexuality-in-comedy-film
#4
Margaret Gatling, Jane Mills, David Lindsay
Representations of the sexuality of older people have been largely absent in mainstream films until recent times. Cinema as an art form has historically denied or ignored the fact that humans are sexual beings their whole lives. In this paper critical discourse analysis is used to examine four comedy films released between 1993 and 2012 that tackle the subject of 'senior sexuality'. All four films are explicit in representing older people as sexual beings but, unlike films about young people's sexual activity, the details of sexual encounters are left to viewers' imaginations...
January 2017: Journal of Aging Studies
https://www.readbyqxmd.com/read/28209425/dominant-root-locus-in-state-estimator-design-for-material-flow-processes-a-case-study-of-hot-strip-rolling
#5
Jaromír Fišer, Pavel Zítek, Pavel Skopec, Jan Knobloch, Tomáš Vyhlídal
The purpose of the paper is to achieve a constrained estimation of process state variables using the anisochronic state observer tuned by the dominant root locus technique. The anisochronic state observer is based on the state-space time delay model of the process. Moreover the process model is identified not only as delayed but also as non-linear. This model is developed to describe a material flow process. The root locus technique combined with the magnitude optimum method is utilized to investigate the estimation process...
February 13, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28197730/mechanisms-of-the-inhibition-of-enzymatic-hydrolysis-of-waste-pulp-fibers-by-calcium-carbonate-and-the-influence-of-nonionic-surfactant-for-mitigation
#6
Byeong Cheol Min, Bandaru V Ramarao
Recycled paper mills produce large quantities of fibrous rejects and fines which are usually sent to landfills as solid waste. These cellulosic materials can be enzymatically hydrolyzed into sugars for the production of biofuels and biomaterials. Paper mill wastes also contain large amounts of calcium carbonate which inhibits cellulase activity. The calcium carbonate (30%, w/w) decreased 40-60% of sugar yield of unbleached softwood kraft pulp. The prime mechanisms for this are by pH variation, competitive and non-productive binding, and aggregation effect...
February 14, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28190565/a-kpi-based-process-monitoring-and-fault-detection-framework-for-large-scale-processes
#7
Kai Zhang, Yuri A W Shardt, Zhiwen Chen, Xu Yang, Steven X Ding, Kaixiang Peng
Large-scale processes, consisting of multiple interconnected subprocesses, are commonly encountered in industrial systems, whose performance needs to be determined. A common approach to this problem is to use a key performance indicator (KPI)-based approach. However, the different KPI-based approaches are not developed with a coherent and consistent framework. Thus, this paper proposes a framework for KPI-based process monitoring and fault detection (PM-FD) for large-scale industrial processes, which considers the static and dynamic relationships between process and KPI variables...
February 9, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28185157/continuous-measurement-of-atmospheric-reduced-sulphur-compounds-as-key-tracers-between-odour-complaints-and-source-apportionment
#8
Maite de Blas, Marino Navazo, Lucio Alonso, Gotzon Gangoiti, José Antonio García, Estíbaliz Sáez de Cámara, Verónica Valdenebro, Estíbaliz García-Ruiz, Nicolás García-Borreguero
Odour complaints are frequent nowadays, particularly nearby industrial facilities emitting odorous compounds. Among all compounds susceptible of causing odour annoyance, reduced sulphur compounds (RSC) were studied, due to their unpleasant odour and low odour threshold. RSC ambient air mixing ratios, meteorological conditions and population complaints were analysed in an area of complex topography in order to identify their potential sources. Mixing ratios of three compounds, dimethyl sulphide (DMS), carbon disulphide (CDS) and dimethyl disulphide (DMDS), were continuously monitored using an online gas chromatograph coupled with a mass spectrometer detector (GC-MSD), which was placed in a mobile air quality monitoring unit...
March 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28130988/single-and-multi-component-adsorption-of-psychiatric-pharmaceuticals-onto-alternative-and-commercial-carbons
#9
Vânia Calisto, Guilaine Jaria, Carla Patrícia Silva, Catarina I A Ferreira, Marta Otero, Valdemar I Esteves
This work describes the adsorptive removal of three widely consumed psychiatric pharmaceuticals (carbamazepine, paroxetine and oxazepam) from ultrapure water. Two different adsorbents were used: a commercial activated carbon and a non-activated waste-based carbon (PS800-150-HCl), produced by pyrolysis of primary paper mill sludge. These adsorbents were used in single, binary and ternary batch experiments in order to determine the adsorption kinetics and equilibrium isotherms of the considered pharmaceuticals...
January 25, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28110358/pollution-assessment-of-the-biob%C3%A3-o-river-chile-prioritization-of-substances-of-concern-under-an-ecotoxicological-approach
#10
Álvaro Alonso, Ricardo Figueroa, Pilar Castro-Díez
The water demand for human activities is rapidly increasing in developing countries. Under these circumstances, preserving aquatic ecosystems should be a priority which requires the development of quality criteria. In this study we perform a preliminary prioritization of the risky substances based on reported ecotoxicological studies and guidelines for the Biobío watershed (Central Chile). Our specific aims are (1) reviewing the scientific information on the aquatic pollution of this watershed, (2) determining the presence and concentration of potential toxic substances in water, sediment and effluents, (3) searching for quality criteria developed by other countries for the selected substances and (4) prioritizing the most risky substances by means of deterministic ecotoxicological risk assessment...
January 21, 2017: Environmental Management
https://www.readbyqxmd.com/read/28110178/tem-sample-preparation-by-femtosecond-laser-machining-and-ion-milling-for-high-rate-tem-straining-experiments
#11
Thomas Voisin, Michael D Grapes, Yong Zhang, Nicholas Lorenzo, Jonathan Ligda, Brian Schuster, Timothy P Weihs
To model mechanical properties of metals at high strain rates, it is important to visualize and understand their deformation at the nanoscale. Unlike post mortem Transmission Electron Microscopy (TEM), which allows one to analyze defects within samples before or after deformation, in situ TEM is a powerful tool that enables imaging and recording of deformation and the associated defect motion during mechanical loading. Unfortunately, all current in situ TEM mechanical testing techniques are limited to quasi-static strain rates...
December 5, 2016: Ultramicroscopy
https://www.readbyqxmd.com/read/28093798/the-student-volunteer-army-a-repeat-emergent-emergency-response-organisation
#12
Sally Carlton, Colleen E Mills
This paper seeks to contribute to understanding of the factors associated with an effective emergent emergency response organisation and to provide new insights into this understudied area. It examines, through an analysis of a range of textual resources, the emergence and re-emergence of the Student Volunteer Army (SVA) during the devastating earthquakes in Canterbury, New Zealand, in 2010-11. This evaluation is conducted in relation to the four key features of an effective emergency response organisation: adaptability; direction; leadership; and communication...
January 17, 2017: Disasters
https://www.readbyqxmd.com/read/28074963/ultrahigh-capacity-dynamic-holographic-displays-via-anisotropic-nanoholes
#13
Xiaohu Zhang, Jinjin Jin, Mingbo Pu, Xiong Li, Xiaoliang Ma, Ping Gao, Zeyu Zhao, Yanqin Wang, Changtao Wang, Xiangang Luo
For the miniaturization of optical holographic and data recording devices, large information capacity or data density is indispensable but difficult to obtain using traditional technologies. In this paper, an ultrahigh-capacity metasurface hologram is proposed by encoding information in deep-subwavelength scale nanohole arrays, which can be reconstructed via a light beam with proper designed incident angles. The imaging information capacity of the two-dimensional (2D) hologram, defined by the distortion-free region, can be increased 11...
January 11, 2017: Nanoscale
https://www.readbyqxmd.com/read/28059302/replication-of-thermoplastic-polymer-spherical-lens-array-using-microforged-molding-technique
#14
Dan Xie, Xuefeng Chang, Xiayun Shu, Jian Wang, Lifang Mei, Shanming Luo
In this paper, we propose a replication method of thermoplastic polymer spherical lens array using a novel microforged mold. The Si<sub>3</sub>N<sub>4</sub> ceramic balls, with 3.5 mm diameter, 10 nm surface roughness and 84 nm deviation from spherical profile, were utilized as indentor to generate aluminum alloy lens array mold. Upon the optimization of technical parameters, such as heating and de-molding temperature, indentation force and holding time, a high quality spherical lens array mold was obtained...
December 26, 2016: Optics Express
https://www.readbyqxmd.com/read/28050656/the-recommendations-of-a-consensus-panel-for-the-screening-diagnosis-and-treatment-of-neurogenic-orthostatic-hypotension-and-associated-supine-hypertension
#15
REVIEW
Christopher H Gibbons, Peter Schmidt, Italo Biaggioni, Camille Frazier-Mills, Roy Freeman, Stuart Isaacson, Beverly Karabin, Louis Kuritzky, Mark Lew, Phillip Low, Ali Mehdirad, Satish R Raj, Steven Vernino, Horacio Kaufmann
Neurogenic orthostatic hypotension (nOH) is common in patients with neurodegenerative disorders such as Parkinson's disease, multiple system atrophy, pure autonomic failure, dementia with Lewy bodies, and peripheral neuropathies including amyloid or diabetic neuropathy. Due to the frequency of nOH in the aging population, clinicians need to be well informed about its diagnosis and management. To date, studies of nOH have used different outcome measures and various methods of diagnosis, thereby preventing the generation of evidence-based guidelines to direct clinicians towards 'best practices' when treating patients with nOH and associated supine hypertension...
January 3, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28045964/evolution-of-collective-behaviour-in-an-artificial-world-using-linguistic-fuzzy-rule-based-systems
#16
Jure Demšar, Iztok Lebar Bajec
Collective behaviour is a fascinating and easily observable phenomenon, attractive to a wide range of researchers. In biology, computational models have been extensively used to investigate various properties of collective behaviour, such as: transfer of information across the group, benefits of grouping (defence against predation, foraging), group decision-making process, and group behaviour types. The question 'why,' however remains largely unanswered. Here the interest goes into which pressures led to the evolution of such behaviour, and evolutionary computational models have already been used to test various biological hypotheses...
2017: PloS One
https://www.readbyqxmd.com/read/28035087/fib-synthesis-of-bi2se3-1d-nanowires-demonstrating-the-co-existence-of-shubnikov-de-haas-oscillations-and-linear-magnetoresistance
#17
Biplab Bhattacharyya, Alka Sharma, V P S Awana, T D Senguttuvan, Sudhir Husale
Since the discovery of topological insulators (TIs), there are considerable interests in demonstrating metallic surface states (SS), their shielded robust nature to the backscattering and study their properties at nanoscale dimensions by fabricating nanodevices. Here we address an important scientific issue related to TI whether one can clearly demonstrate the robustness of topological surface states (TSS) to the presence of disorder that does not break any fundamental symmetry. The simple straightforward method of FIB milling was used to synthesize nanowires of Bi2Se3 which we believe is an interesting route to test robustness of TSS and the obtained results are new compared to many of the earlier papers on quantum transport in TI demonstrating the robustness of metallic SS to gallium (Ga) doping...
February 22, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28024821/machinability-of-cad-cam-materials
#18
Ramakiran Chavali, Amir H Nejat, Nathaniel C Lawson
STATEMENT OF PROBLEM: Although new materials are available for computer-aided design and computer-aided manufacturing (CAD-CAM) fabrication, limited information is available regarding their machinability. The depth of penetration of a milling tool into a material during a timed milling cycle may indicate its machinability. PURPOSE: The purpose of this in vitro study was to compare the tool penetration rate for 2 polymer-containing CAD-CAM materials (Lava Ultimate and Enamic) and 2 ceramic-based CAD-CAM materials (e...
December 23, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28011599/long-term-effects-of-aided-phytostabilisation-on-microbial-communities-of-metal-contaminated-mine-soil
#19
Olatz Garaiyurrebaso, Carlos Garbisu, Fernando Blanco, Anders Lanzén, Iker Martín, Lur Epelde, José M Becerril, Sven Jechalke, Kornelia Smalla, Elisabeth Grohmann, Itziar Alkorta
Aided phytostabilisation uses metal-tolerant plants, together with organic or inorganic amendments, to reduce metal bioavailability in soil while improving soil quality. The long-term effects of the following organic amendments were examined as part of an aided phytostabilisation field study in an abandoned Pb/Zn mining area: cow slurry, sheep manure and paper mill sludge mixed with poultry manure. In the mining area, two heavily contaminated vegetated sites, showing different levels of soil metal contamination (LESS and MORE contaminated site), were selected for this study...
March 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28000980/qualitative-study-of-peer-workers-within-the-partners-in-recovery-programme-in-regional-australia
#20
John Hurley, Andrew Cashin, Jem Mills, Marie Hutchinson, Desiree Kazlowski, Iain Graham
In Australia and internationally, Peer Workers are increasingly being incorporated into the mental health workforce. Underpinning this trend is the conviction that the inclusion of workers with lived experience in overcoming mental health challenges is central to transforming service delivery. Given there are few identified Australian studies into the experiences of Peer Workers, this paper reports findings from qualitative interviews conducted in a Partners In Recovery programme in one regional area in Australia...
December 21, 2016: International Journal of Mental Health Nursing
keyword
keyword
118130
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"