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Lu B.T.,Southwest Research Institute | Song F.,Southwest Research Institute | Gao M.,Blade Engineering Partners | Elboujdaini M.,Nature Technology
Corrosion Science | Year: 2010

The crack tip strain rate (CTSR) and the dissolution/repassivation kinetics are the parameters controlling high pH SCC of pipeline steels because the repeated film rupture is the dominative mechanism. The CTSR is mainly produced by the crack tip advance and cyclic load. Theoretical expressions of the CTSR are given to account on these factors. After the anodic current density determined from a polarization curve measured with a potential scanning velocity 1V/min and the repassivation kinetic exponent obtained by the strained electrode method are utilized, the crack growth model proposed gives a reasonably good prediction to the crack velocity experimentally observed. A numeric simulation in a 0.5M carbonate+0.5M bicarbonate solution indicates that the effect of mass transfer within crack on the crack growth is negligible when the crack velocity is below 10 -9m/s. Various factors affecting the SCC are discussed. © 2010.


MarketStudyReport.com adds “2017-2022 Global Top Countries Activated Carbon Fiber Market Report" new report to its research database. The report spread across 158 pages with table and figures in it. This report studies Activated Carbon Fiber in Global market, especially in United States, Canada, Mexico, Germany, France, UK, Italy, Russia, China, Japan, India, Korea, Southeast Asia, Australia, Brazil, Middle East and Africa, focuses on the top Manufacturers in each country, covering Toyobo Kuraray Unitika Gunei Chem Evertech Envisafe Ecology Taiwan Carbon Technology Awa Paper HP Materials Solutions Sutong Carbon Fiber Jiangsu Tongkang Anhui Jialiqi Nantong Senyou Kejing Carbon Fiber Nantong Beierge Nantong Yongtong Xintong ACF Nature Technology Hailan Filtration Tech Sinocarb Carbon Fibers Nantong Jinheng Zichuan Carbon Fiber Browse full table of contents and data tables at  https://www.marketstudyreport.com/reports/2017-2022-global-top-countries-activated-carbon-fiber-market-report/ Market Segment by Countries, this report splits Global into several key Countries, with sales, revenue, market share of top 5 players in these Countries, from 2012 to 2017 (forecast), like 1 United States 2 Canada 3 Mexico 4 Germany 5 France 6 UK 7 Italy 8 Russia 9 China 10 Japan 11 India 12 Korea 13 Southeast Asia 14 Australia 15 Brazil 16 Middle East 17 Africa Split by Product Types, with sales, revenue, price, market share of each type, can be divided into Cellulose based ACF Polyacrylonitrile (PAN) based ACF Phenolic resin based ACF Others based ACF Split by applications, this report focuses on sales, market share and growth rate of Activated Carbon Fiber in each application, can be divided into Solvent recovery Air purification Water treatment Catalyst carrier Others 4 Global Activated Carbon Fiber Manufacturers Profiles/Analysis 4.1 Toyobo 4.1.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 4.1.2 Activated Carbon Fiber Product Types, Application and Specification 4.1.3 Toyobo Activated Carbon Fiber Sales, Revenue, Price and Gross Margin (2015 and 2016) 4.1.4 Main Business/Business Overview 4.1.5 Toyobo News 4.2 Kuraray 4.2.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 4.2.2 Activated Carbon Fiber Product Types, Application and Specification 4.2.3 Kuraray Activated Carbon Fiber Sales, Revenue, Price and Gross Margin (2012-2017) 4.2.4 Main Business/Business Overview 4.2.5 Kuraray News 4.3 Unitika 4.3.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 4.3.2 Activated Carbon Fiber Product Types, Application and Specification 4.3.3 Unitika Activated Carbon Fiber Sales, Revenue, Price and Gross Margin (2012-2017) 4.3.4 Main Business/Business Overview 4.3.5 Unitika News 4.4 Gunei Chem 4.4.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 4.4.2 Activated Carbon Fiber Product Types, Application and Specification 4.4.3 Gunei Chem Activated Carbon Fiber Sales, Revenue, Price and Gross Margin (2012-2017) 4.4.4 Main Business/Business Overview 4.4.5 Gunei Chem News 4.5 Evertech Envisafe Ecology 4.5.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 4.5.2 Activated Carbon Fiber Product Types, Application and Specification 4.5.3 Evertech Envisafe Ecology Activated Carbon Fiber Sales, Revenue, Price and Gross Margin (2012-2017) 4.5.4 Main Business/Business Overview 4.5.5 Evertech Envisafe Ecology News 4.6 Taiwan Carbon Technology 4.6.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 4.6.2 Activated Carbon Fiber Product Types, Application and Specification 4.6.3 Taiwan Carbon Technology Activated Carbon Fiber Sales, Revenue, Price and Gross Margin (2015 and 2016) 4.6.4 Main Business/Business Overview 4.6.5 Taiwan Carbon Technology News 4.7 Awa Paper 4.7.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 4.7.2 Activated Carbon Fiber Product Types, Application and Specification 4.7.3 Awa Paper Activated Carbon Fiber Sales, Revenue, Price and Gross Margin (2012-2017) 4.7.4 Main Business/Business Overview 4.7.5 Awa Paper News 4.8 HP Materials Solutions 4.8.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 4.8.2 Activated Carbon Fiber Product Types, Application and Specification 4.8.3 HP Materials Solutions Activated Carbon Fiber Sales, Revenue, Price and Gross Margin (2012-2017) 4.8.4 Main Business/Business Overview 4.8.5 HP Materials Solutions News 4.9 Sutong Carbon Fiber 4.9.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 4.9.2 Activated Carbon Fiber Product Types, Application and Specification 4.9.3 Activated Carbon Fiber Sales, Revenue, Price and Gross Margin (2012-2017) 4.9.4 Main Business/Business Overview 4.9.5 Sutong Carbon Fiber News 4.10 Jiangsu Tongkang 4.10.1 Company Basic Information, Manufacturing Base, Sales Area and Its Competitors 4.10.2 Activated Carbon Fiber Product Types, Application and Specification 4.10.3 Jiangsu Tongkang Activated Carbon Fiber Sales, Revenue, Price and Gross Margin (2012-2017) 4.10.4 Main Business/Business Overview 4.10.5 Jiangsu Tongkang News 4.11 Anhui Jialiqi 4.12 Nantong Senyou 4.13 Kejing Carbon Fiber 4.14 Nantong Beierge 4.15 Nantong Yongtong 4.16 Xintong ACF 4.17 Nature Technology 4.18 Hailan Filtration Tech 4.19 Sinocarb Carbon Fibers 4.20 Nantong Jinheng 4.21 Zichuan Carbon Fiber To receive personalized assistance write to us @ [email protected] with the report title in the subject line along with your questions or call us at +1 866-764-2150


Marinari S.,Agro food and Forest Systems | Mancinelli R.,Nature Technology | Brunetti P.,Nature Technology | Campiglia E.,Nature Technology
Soil and Tillage Research | Year: 2015

An experiment concerning the biological and chemical responses of soil to cover crop mulching was carried out in two adjacent experimental fields (2012 and 2013) under different climatic conditions in the Mediterranean environment (Central Italy). The Monthly Aridity Index was calculated in order to verify the relationship between soil properties and climatic factors under three different cover crop mulches: Vicia villosa Roth (HV), Phacelia tanacetifolia Benth. (LP), and Sinapis alba L. (WM). A conventional management was also included in the experimental fields as control (C). Soil samples were collected at 0-20cm depth after the transplanting and the harvesting of tomato (May and August, respectively), in order to assess the initial and residual effects of mulching on soil quality. In the two experimental years, the amount of precipitation from May to August was 110mm in 2012 and 172mm in 2013. The average values of AI were 18 and 49 in 2012 and 2013, respectively. LP mulching was sensitive to low precipitation levels in terms of aboveground decomposition rate (the variation of dry matter from May to August 2012 was -53% in LP, 64% in HV and 69% in WM) and a lower tomato yield compared to the control in 2012 (4.2kgm-2 in LP and 5.2kgm-2 in C). WM mulching was sensitive to low precipitation in terms of soil nutrient storage (from May to August 2012 the variation of soil C was 19% in WM., 6% in C, -5 % in LP and 10% in HV; the variation of soil N was 44% in WM, 2% in C, -2% in LP and 13% in HV). Soil microbial activity and functional diversity were strongly affected by the climatic conditions in all mulching treatments. In particular, precipitation influenced soil C availability, which enhanced microbial functional diversity. In short, the effects of lacy phacelia, white mustard and hairy vetch mulching on soil quality, microbial functions and tomato yield were influenced by summer precipitation and temperature in the Mediterranean environment. © 2014 Elsevier B.V.


Pawlikowski P.,University of Warsaw | Abramczyk K.,University of Warsaw | Szczepaniuk A.,University of Warsaw | Szczepaniuk A.,Nature Technology | Kozub L.,University of Warsaw
Preslia | Year: 2013

The species composition of 22 mires (brown-moss rich fens) was surveyed in north-eastern Poland, located in continental boreo-nemoral Europe. Detailed analyses of the water chemistry, biomass N, P, and K content, productivity and water level were made. Two floristically different types of richfen vegetation occur in this area, one with numerous Caricetalia davallianae (calcicole) species such as Scorpidium cossonii, Campylium stellatum, Carex lepidocarpa and Eriophorum latifolium (Cd fens) and the other with a few Caricetalia davallianae species and mainly Hamatocaulis vernicosus, Marchantia polymorpha, Plagiomnium ellipticum, Carex diandra and C. rostrata (non- Cd fens). In these two rich-fen types surface water chemistry and water levels were similar, but the Cd fens characteristically had higher pHs and lower PO4 3- concentrations. N and P availability revealed by the N:P ratio is the ecological factor that best accounts for the differences in species composition of the two rich-fen types: the non-Cd fens are N-limited while the Cd-fens are usually P-limited. Moreover, the Cd fens differ from the non-Cd fens in a higher productivity of the bryophyte layer. In the case of P andKconcentrations, there is a correlation between that in vascular plants and bryophytes, while N concentrations are not correlated.We believe that in the case of low productive ecosystems the use of the broad "nutrient availability gradient" should be replaced by a (from) N-(to) P-limitation gradient with N:P ratio as a useful measure. Natural N-limited, lowproductive rich fens and their ecological conditions can be a phenomenon typical of continentaleastern temperate European areas, which have been poorly surveyed and need further research.


Romagnoli M.,Nature Technology | Spina S.,Nature Technology
Canadian Journal of Forest Research | Year: 2013

Ring shake is a defect that strongly affects chestnut (Castanea sativa Mill.) use and its occurrence is known to be mainly related to mechanical stress within a tree; however, few investigations have compared the physico-mechanical properties of healthy and shaken trees. Hence, the aim of this study is to compare the density, compression strength, bending strength (MOR), and shrinkages between healthy and shaken trees in coppice stands. The investigation was carried out in the Lazio Region in central Italy in trees with a cambial age between 6 and 25 years. The results showed that shaken trees had lower mechanical strength and shrinkages than healthy ones and that the physico-mechanical parameters might be used to predict ring shake occurrence in a specific geographic area. Geographical location strongly affected the physico-mechanical properties of the chestnut wood, and this factor influenced ring shake occurrence. MOR value was assumed to be the parameter that could be applied at almost all study sites to distinguish between shaken and healthy trees. There was no difference between the shaken and healthy portions of a disk inside the same tree.


Tryka S.,Lublin University of Life Sciences | Tryka S.,Nature Technology
Journal of Modern Optics | Year: 2014

The multidomain integral equation method is used to calculate fluxes of radiation from various on- and off-axis point sources passing through two different homogeneous isotropic media and striking a surface of a circular disc perpendicular to the optical axes of these sources. This method is dedicated to radiation passing through attenuating or nonattenuating media with a Fresnel interface and is applicable for arbitrary radiation patterns of point sources. The paper presents, firstly, the generalized multidomain integral equation method, expressed by double iterated integrals, for calculating radiant fluxes from arbitrary emitting point sources. This generalized method is simplified then to the form of multidomain single integral equation method applicable for rotationally symmetrical radiation patterns with optical axes perpendicular to the disc. Next, the simplified method is used for computer simulation of radiant fluxes incident on the disc from small Lambertian and Gaussian sources represented by point source models. All numerical results obtained from this simulation have shown high accuracy and efficiency of the presented method. Selected results are illustrated graphically and validated by Optical Software for Layout and Optimization (OSLO) from Lambda Research Corporation. Potential applications of the presented method include optical sensing and metrology, optical coupling, immersion microscopes, light-extraction problems and creative lighting design. © 2014 Taylor & Francis.


Suttrup I.,University of Munster | Oberdiek D.,University of Munster | Suttrup J.,Nature Technology | Osada N.,University of Munster | And 2 more authors.
Movement Disorders | Year: 2011

Former studies suggest an additional involvement of the sensory nervous system, beside the involuntary contractions of antagonist muscles, in idiopathic hand dystonia. We studied contact heat-evoked potentials and quantitative sensory testing (QST) in 10 patients suffering from idiopathic hand dystonia and 10 age-matched healthy controls. Cortical potentials recorded from the vertex (Pz) after contact heat stimulation of the volar forearm and the dorsum of the hand at a temperature of 51°C showed significantly reduced A-δ-amplitudes. Numerical pain ratings on the affected side in comparison to the unaffected side and to healthy controls were significantly reduced. QST results showed an impairment of the thermal detection thresholds, the mechanical pain sensitivity and the mechanical pain threshold at the affected body side of the patients. Our results suggest a loss of distinct sensory functions of the affected hand in comparison with the contralateral hand and to matched healthy subjects in patients suffering from idiopathic hand dystonia. For the first time, an extended loss of sensory function could be shown in patients suffering from idiopathic hand dystonia. © 2010 Movement Disorder Society.


Optical systems protected by plane-parallel entrance windows from external environmental conditions were studied to determine the radiant fluxes passing through their circular apertures from wide-angle on-axis and off-axis point sources. The study was performed for the case when the windows, the internal environments, and the external environments of these optical systems were considered as three different homogeneous isotropic and attenuating media. All considerations were made for ideal plane-parallel windows illuminated by an arbitrary radiation field applying the multiple-reflection theory. As a result of this study a multi-domain integral equation method based on a mathematical formula expressed by a series of multiple-reflected fluxes of radiation within the plane-parallel window was proposed. The applicability of the method was tested using computer simulations for an isotropic point source and a small area Lambertian source represented by a point-source model. The computed results were validated by the optical software for layout and optimization program from Lambda Research Corporation (USA). The selected results were illustrated graphically and analyzed. The numerical simulations have shown high accuracy and efficiency in the calculations for arbitrary emitting point sources. The potential applications of the presented method include optical sensing and metrology of noncollimated radiation from the various on-axis and off-axis point sources. © 2015 Optical Society of America.


Patent
Nature Technology | Date: 2013-11-25

A fire-resistant cellulose material composed of a liquid acid fire-retardant chemical composition and methods of producing the cellulose material are disclosed.


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