keyword
MENU ▼
Read by QxMD icon Read
search

paper mill

keyword
https://www.readbyqxmd.com/read/28816659/low-frequency-and-broadband-vibration-energy-harvesting-using-base-mounted-piezoelectric-transducers
#1
Robert Koven, Matthew Mills, Richard Gale, Burak Aksak
Piezoelectric vibration energy harvesters often consist of a cantilevered beam composed of a support layer and one or two piezoelectric layers with a tip mass. While this configuration is advantageous for maximizing electromechanical coupling, the mechanical properties of the piezoelectric material can place limitations on harvester size and resonant frequency. Here, we present numerical and experimental results from a new type of piezoelectric energy harvester in which the mechanical properties and the resonant frequency of the cantilever beam resonator are effectively decoupled from the piezoelectric component...
August 14, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28793843/assessment-of-phyto-kinetic-removal-of-pollutants-of-paper-mill-effluent-using-water-hyacinth-eichhornia-crassipes-mart-solms
#2
Vinod Kumar, Jogendra Singh, A K Chopra
Laboratory experiments were carried out to assess the phytoremediation potential of water hyacinth (Eichhornia crassipes [Mart.] Solms) for the removal of different parameters of the paper mill effluent. The maximum removal efficiency of E. crassipes and phyto-kinetic removal rate was recorded at 50% concentration of the paper mill effluent followed by 60 days of phytoremediation experiments. The most percent reduction was observed in the contents of EC (62.23%), TDS (72.54%), BOD (79.93%), COD (85.66%), TKN (89...
August 9, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28791132/waterjet-and-laser-etching-the-nonlinear-inverse-problem
#3
A Bilbao-Guillerna, D A Axinte, J Billingham, G B J Cadot
In waterjet and laser milling, material is removed from a solid surface in a succession of layers to create a new shape, in a depth-controlled manner. The inverse problem consists of defining the control parameters, in particular, the two-dimensional beam path, to arrive at a prescribed freeform surface. Waterjet milling (WJM) and pulsed laser ablation (PLA) are studied in this paper, since a generic nonlinear material removal model is appropriate for both of these processes. The inverse problem is usually solved for this kind of process by simply controlling dwell time in proportion to the required depth of milling at a sequence of pixels on the surface...
July 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28779768/energy-effective-grinding-of-inorganic-solids-using-organic-additives
#4
Ratan K Mishra, Martin Weibel, Thomas Müller, Hendrik Heinz, Robert J Flatt
We present our research findings related to new formulations of the organic additives (grinding aids) needed for the efficient grinding of inorganic solids. Even though the size reduction phenomena of the inorganic solid particles in a ball mill is purely a physical process, the addition of grinding aids in milling media introduces a complex physicochemical process. In addition to further gain in productivity, the organic additive helps to reduce the energy needed for grinding, which in the case of cement clinker has major environmental implications worldwide...
August 9, 2017: Chimia
https://www.readbyqxmd.com/read/28773243/impact-load-behavior-between-different-charge-and-lifter-in-a-laboratory-scale-mill
#5
Zixin Yin, Yuxing Peng, Zhencai Zhu, Zhangfa Yu, Tongqing Li
The impact behavior between the charge and lifter has significant effect to address the mill processing, and is affected by various factors including mill speed, mill filling, lifter height and media shape. To investigate the multi-body impact load behavior, a series of experiments and Discrete Element Method (DEM) simulations were performed on a laboratory-scale mill, in order to improve the grinding efficiency and prolong the life of the lifter. DEM simulation hitherto has been extensively applied as a leading tool to describe diverse issues in granular processes...
July 31, 2017: Materials
https://www.readbyqxmd.com/read/28772653/vibration-damping-analysis-of-lightweight-structures-in-machine-tools
#6
Francesco Aggogeri, Alberto Borboni, Angelo Merlo, Nicola Pellegrini, Raffaele Ricatto
The dynamic behaviour of a machine tool (MT) directly influences the machining performance. The adoption of lightweight structures may reduce the effects of undesired vibrations and increase the workpiece quality. This paper aims to present and compare a set of hybrid materials that may be excellent candidates to fabricate the MT moving parts. The selected materials have high dynamic characteristics and capacity to dampen mechanical vibrations. In this way, starting from the kinematic model of a milling machine, this study evaluates a number of prototypes made of Al foam sandwiches (AFS), Al corrugated sandwiches (ACS) and composite materials reinforced by carbon fibres (CFRP)...
March 15, 2017: Materials
https://www.readbyqxmd.com/read/28772479/swept-mechanism-of-micro-milling-tool-geometry-effect-on-machined-oxygen-free-high-conductivity-copper-ofhc-surface-roughness
#7
Zhenyu Shi, Zhanqiang Liu, Yuchao Li, Yang Qiao
Cutting tool geometry should be very much considered in micro-cutting because it has a significant effect on the topography and accuracy of the machined surface, particularly considering the uncut chip thickness is comparable to the cutting edge radius. The objective of this paper was to clarify the influence of the mechanism of the cutting tool geometry on the surface topography in the micro-milling process. Four different cutting tools including two two-fluted end milling tools with different helix angles of 15° and 30° cutting tools, as well as two three-fluted end milling tools with different helix angles of 15° and 30° were investigated by combining theoretical modeling analysis with experimental research...
January 28, 2017: Materials
https://www.readbyqxmd.com/read/28770599/effect-of-frequency-of-clinic-visits-and-medication-pick-up-on-antiretroviral-treatment-outcomes-a-systematic-literature-review-and-meta-analysis
#8
Tsitsi Mutasa-Apollo, Nathan Ford, Matthew Wiens, Maria Eugenia Socias, Eyerusalem Negussie, Ping Wu, Evan Popoff, Jay Park, Edward J Mills, Steve Kanters
INTRODUCTION: Expanding and sustaining antiretroviral therapy (ART) coverage may require simplified HIV service delivery strategies that concomitantly reduce the burden of care on the health system and patients while ensuring optimal outcomes. We conducted a systematic review to assess the impact of reduced frequency of clinic visits and drug dispensing on patient outcomes. METHODS: As part of the development process of the World Health Organization antiretroviral (ARV) guidelines, we systematically searched medical literature databases for publications up to 30 August 2016...
July 21, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28763408/cost-and-return-on-investment-of-a-work-family-intervention-in-the-extended-care-industry-evidence-from-the-work-family-and-health-network
#9
William N Dowd, Jeremy W Bray, Carolina Barbosa, Krista Brockwood, David J Kaiser, Michael J Mills, David A Hurtado, Brad Wipfli
OBJECTIVE: To estimate the cost and return on investment (ROI) of an intervention targeting work-family conflict (WFC) in the extended care industry. METHODS: Costs to deliver the intervention during a group-randomized controlled trial were estimated, and data on organizational costs-presenteeism, health care costs, voluntary termination, and sick time-were collected from interviews and administrative data. Generalized linear models were used to estimate the intervention's impact on organizational costs...
July 31, 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28735247/can-nurses-rise-to-the-public-health-challenge-how-a-novel-solution-in-nurse-education-can-address-this-contemporary-question
#10
EDITORIAL
Angela L Turner-Wilson, Anne M Mills, Karen Rees
This paper raises the problem of how improvements in health outcomes, a key component in many governments' strategies, can be achieved. The work highlights a novel undergraduate educational approach which offers solutions to public health challenges within nursing. Against the backdrop of one UK university institution it discusses approaches that can guide nursing students towards a deeper understanding and engagement within the principles of public health. It then proposes how nurses can use their learning to become leaders of health improvement...
July 12, 2017: Nurse Education Today
https://www.readbyqxmd.com/read/28733014/removal-of-congo-red-dye-from-aqueous-solution-with-nickel-based-metal-organic-framework-graphene-oxide-composites-prepared-by-ultrasonic-wave-assisted-ball-milling
#11
Shuaiqi Zhao, Ding Chen, Fuhua Wei, Nini Chen, Zhao Liang, Yun Luo
Metal-organic frameworks (MOFs) were successfully synthesized by ultrasonic wave-assisted ball milling. In the absence of organic solvent, the coupling effect of ultrasonic wave and mechanical force played an significant role in the synthesis of MOFs. Adsorption of Congo red (CR) was studied in view of adsorption kinetic, isotherm and thermodynamics. The adsorbent was carried out using X-ray diffraction (XRD), thermogravimetric analysis (TGA), N2 adsorption-desorption isotherms, Raman spectroscopy and scanning electron microscope (SEM) methods...
November 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28725574/sugar-acid-and-furfural-quantification-in-a-sulphite-pulp-mill-feedstock-product-and-hydrolysate-analysis-by-hplc-rid
#12
Tamara Llano, Natalia Quijorna, Ana Andrés, Alberto Coz
Waste from pulp and paper mills consist of sugar-rich fractions comprising hemicellulose derivatives and cellulose by-products. A complete characterisation of the waste streams is necessary to study the possibilities of an existing mill. In this work, four chromatographic methods have been developed to obtain the most suitable chromatographic method conditions for measuring woody feedstocks, lignocellulosic hydrolysates and cellulose pulp in sulphite pulping processes. The analysis of major and minor monosaccharides, aliphatic carboxylic acids and furfurals has been optimised...
September 2017: Biotechnology Reports
https://www.readbyqxmd.com/read/28716502/crystalline-polymorphism-emerging-from-a-milling-induced-amorphous-form-the-case-of-chlorhexidine-dihydrochloride
#13
E Elisei, J F Willart, F Danède, J Siepmann, F Siepmann, M Descamps
In this paper, solid state amorphization induced by mechanical milling is shown to be a useful tool to explore the polymorphism of drugs and their mechanism of devitrification. We show in particular how the recrystallization of amorphous chlorhexidine dihydrochloride obtained by milling reveals a complex polymorphism that involves several polymorphic forms. Two new crystalline forms are identified, one of them appearing as a highly disordered precursor state which however clearly differs from the amorphous one...
July 14, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28712779/fabrication-of-engineered-biochar-from-paper-mill-sludge-and-its-application-into-removal-of-arsenic-and-cadmium-in-acidic-water
#14
Kwangsuk Yoon, Dong-Wan Cho, Daniel C W Tsang, Nanthi Bolan, Jörg Rinklebe, Hocheol Song
An engineered biochar was fabricated via paper mill sludge pyrolysis under CO2 atmosphere, and its adsorption capability for As(V) and Cd(II) in aqueous solution was evaluated in a batch mode. The characterization results revealed that the biochar had the structure of complex aggregates containing solid minerals (FeO, Fe3O4 and CaCO3) and graphitic carbon. Adsorption studies were carried out covering various parameters including pH effect, contact time, initial concentrations, competitive ions, and desorption...
July 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28712086/pilot-study-investigating-ambient-air-toxics-emissions-near-a-canadian-kraft-pulp-and-paper-facility-in-pictou-county-nova-scotia
#15
Emma Hoffman, Judith R Guernsey, Tony R Walker, Jong Sung Kim, Kate Sherren, Pantelis Andreou
Air toxics are airborne pollutants known or suspected to cause cancer or other serious health effects, including certain volatile organic compounds (VOCs), prioritized by the US Environmental Protection Agency (EPA). While several EPA-designated air toxics are monitored at a subset of Canadian National Air Pollution Surveillance (NAPS) sites, Canada has no specific "air toxics" control priorities. Although pulp and paper (P&P) mills are major industrial emitters of air pollutants, few studies quantified the spectrum of air quality exposures...
July 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28708120/on-operating-a-nanofiltration-membrane-for-olive-mill-wastewater-purification-at-sub-and-super-boundary-conditions
#16
Marco Stoller, Javier Miguel Ochando-Pulido, Robert Field
In the last decades, membrane processes have gained a significant share of the market for wastewater purification. Although the product (i.e., purified water) is not of high added value, these processes are feasible both technically and from an economic point of view, provided the flux is relatively high and that membrane fouling is strongly inhibited. By controlling membrane fouling, the membrane may work for years without service, thus dramatically reducing operating costs and the need for membrane substitution...
July 14, 2017: Membranes
https://www.readbyqxmd.com/read/28707240/elemental-mobility-in-sulfidic-mine-tailings-reclaimed-with-paper-mill-by-products-as-sealing-materials
#17
Yu Jia, Nanna Stahre, Maria Mäkitalo, Christian Maurice, Björn Öhlander
Sealing layers made of two alkaline paper mill by-products, fly ash and green liquor dregs, were placed on top of 50-year-old sulfide-containing tailings as a full-scale remediation approach. The performance and effectiveness of the sealing layers with high water content for an oxygen barrier and low hydraulic conductivity for a sealing layer in preventing the formation of acid rock drainage were evaluated 5 years after the remediation. The leaching behavior of the covered tailings was studied using batch leaching tests (L/S ratio 10 L/kg)...
July 13, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28704664/a-primary-estimation-of-pcdd-fs-release-reduction-from-non-wood-pulp-and-paper-industry-in-china-based-on-the-investigation-of-pulp-bleaching-with-chlorine-converting-to-chlorine-dioxide
#18
Qingcong Xiao, Xiaoqian Song, Wenchao Li, Yuanna Zhang, Hongchen Wang
Chlorine bleaching technology (C process, CEH process, H process and theirs combination), which was identified as a primary formation source of PCDD/Fs, is still widely used by the vast majority of Chinese non-wood pulp and paper mills (non-wood PMs). The purpose of this study was to provide information and data support for further eliminating dioxin for non-wood PMs in China, and especially to evaluate the PCDD/Fs release reduction for those mills converting their pulp bleaching processes from CEH to ECF. The PCDD/Fs concentrations of the bleached pulp and bleaching wastewater with ECF bleaching were in the ranges of 0...
October 2017: Chemosphere
https://www.readbyqxmd.com/read/28693488/donor-support-for-quality-assurance-and-pharmacovigilance-of-anti-malarials-in-malaria-endemic-countries
#19
Stephanie D Kovacs, Brianna M Mills, Andy Stergachis
BACKGROUND: Malaria control efforts have been strengthened by funding from donor groups and government agencies. The Global Fund to Fight AIDS, Tuberculosis and the Malaria (Global Fund), the US President's Malaria Initiative (PMI) account for the majority of donor support for malaria control and prevention efforts. Pharmacovigilance (PV), which encompasses all activities relating to the detection, assessment, understanding, and prevention of adverse effects or any other drug-related problem, is a necessary part of efforts to reduce drug resistance and improve treatment outcomes...
July 11, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28674942/performance-bridging-the-gap-after-acl-surgery
#20
REVIEW
Polly de Mille, Jamie Osmak
PURPOSE OF REVIEW: The purpose of this paper is to identify strategies for a successful transition to sports in patients following rehabilitation for ACL reconstruction surgery (ACLR). RECENT FINDINGS: Recent research continues to demonstrate a relatively low rate of return to previous level of play among athletes following ACLR combined with a significant risk of injury to either the ipsi or the contralateral ACL. Recent research also demonstrates a growing use of a varied battery of assessments to determine readiness to return to sport as well as a lack of consensus on the ideal rehabilitation program, the criteria for clearance for return to play (both in time from surgery and functional milestones), and the nature of a conditioning program designed specifically for transitioning the cleared athlete back to competition...
July 3, 2017: Current Reviews in Musculoskeletal Medicine
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"