erosion abrasion and resorption
Báo cáo khoa học: "Nutrient efficiency and resorption in Quercus pyrenaica oak coppices under different rainfall regimes of the Sierra de Gata mountains (central western Spain)" pps
... P resorption the relative values of P resorption (table stands on schist (NF and VR) with low available PIII), reserves show values around 50 % and those developed on granitic substrates (FG and ... characterised by wet winters and hot, dry summers [28], with an average rainfall and temperature -2-1 (table I) of approximately 580 L myear and 10.4 °C for NF, and 720 L myear and 12.9 °C for -2-1 area ... of tree leaves and leaf-litter Granite plots (EP and FG) had lower values of N and P concentrations in leaves than those found in the schist plots (NF and VR); knowing that leaf and litter production...
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Báo cáo khoa học: "Changes in foliar nutrient content and resorption in Fraxinus" docx
... occurred in flooded and unflooded stands and varied with the species (figure 2) Nutrient resorption was 40 and 70 % for N, P and K in the three test species and lower for Ca and Mg (0-45 %), Ca ... loss estimated by regression between weight and area of green leaves (initial mass) and mass of senescent leaves Results of foliar and soil content and resorption were compared using a Student’s ... was about 25 % for Clematis, 31 % for Ulmus and between 28 and 32 % for Fraxinus (table II) 4.2.2 Foliar concentrations and resorption rates Flooded and unflooded forest produced senescent foliage...
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Báo cáo y học: "p53 tumor suppressor gene mutations in fibroblast-like synoviocytes from erosion synovium and non-erosion synovium in rheumatoid arthritis" ppsx
... used for the RA4 non -erosion FLS MMP-1 expression in erosion and non -erosion FLS Two matched erosion and non -erosion FLS lines were also evaluated for medium-stimulated and IL-1β-stimulated collagenase ... mutations in erosion FLS and non -erosion FLS To determine whether invasive synovium in RA has an increased number of mutations, p53 cDNA subclones from FLS derived from erosion sites and non -erosion ... non -erosion sites were examined Ten erosion FLS lines and nine non -erosion FLS lines were established from nine patients with RA (two erosion lines and one non -erosion line were examined in one...
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Multi criteria analysis in environmental management: Selecting the best stormwater erosion and sediment control measure in Malaysian construction sites
... input, easiness to understand and use, and so forth The most essential factors for choosing the MCA technique is the easiness of understanding by the analyst, the stakeholders and use Ref [16] stated ... water quality improvements and enhancement of amenity/ecological provision Thus, design and construction, environmental/ecological impact, operation and maintenance, health and safety, social/urban ... availability Social and community Public health & safety risk Turbidity Control Risk of BMP fail Stakeholder acceptability Figure Erosion and sediment control criterion Materials and methods In this...
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Tài liệu Báo cáo " DETERMINING FLOW ENERGY AND EROSION COEFFICIENT FOR CLASSIFICATION OF POTENTIAL EROSION IN BINH DINH PROVINCE " ppt
... out for upstream protection land (UPL), production forest land (PFL), convertible land (CL), cultivated land and plain as shown in Table The results show that high erosion potential mainly distributes ... mainly distributes on the convertible land, the upstream protection land, and the production forest land However, we have only researched and categorized the erosion potential in Binh Dinh Province ... the convertible land) This group has low centralization level of convertible land and low erosion potential level + Group of the convertible land is equivalent to the level of the erosion potential:...
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SOIL EROSION AND CONSERVATION THIRD EDITION docx
... erosion: the global context Box Erosion, population and food supply Processes and mechanics of erosion Box Initiation of soil particle movement 11 42 Factors inuencing erosion Box Scale and erosion ... commonly made for water erosion between rill erosion and erosion on the land between the rills by the combined action of raindrop impact and overland ow This is termed interrill erosion To these agents ... alternate wetting and drying, freezing and thawing and frost action, and biochemical Soil is disturbed by tillage operations and by the trampling of people and livestock Running water and wind are...
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abrasive erosion and corrosion of hydraulic machinery
... 1.4.1 Examples of Hydraulic Abrasion Taking Place in Pumps 1.4.2 Silt Erosion in Pumps 1.5 Technical and Economic Effect Caused by The Erosion Arising in Hydraulic Turbines and Pumps 1.6 Approach ... against Erosion Damage 5.7.1 Quenching and Tempering 5.7.2 Diffusion Permeating Plating References Interaction between Cavitation and Abrasive Erosion Processes V Ya Karelin, A.I Denisov and Y.L ... Suspended Particles on Incipient and Developed of Cavitation 6.2 Effect of Cavitation on Hydroabrasive Erosion 6.3 Relationship between Hydroabrasive Erosion and Cavitational Erosion References Corrosion...
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The relationships of forest and watershed characteristics to soil water retention, storm, runoff, erosion, and wave attenuation in vietnam
... forestland to agricultural uses and the extraction of forest products for socio–economic development (VEPA, 2002) Consequently, there has been an increase in barren land, soil erosion, landslides and ... soil erosion in Southeast Asia and concludes that forest conversion to agriculture and exotic plantation (e.g., shifting cultivation) have significant effects on both surface and landslide erosion ... water flow and preventing soil erosion (Bonell, 1993; Hudson, 1995) The impacts of deforestation on water quantity and erosion have been a serious environmental concern for centuries (Andreassian,...
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báo cáo hóa học:" Can medio-lateral baseplate position and load sharing induce asymptomatic local bone resorption of the proximal tibia? A finite element study" pot
... term' local bone resorption, and we investigate whether it can be attributed to a stress shielding effect, which might lead to more generalized bone resorption in the long term and potential aseptic ... lateral and the medial ROI doesn't seem very high in absolute values (0.26 MPa and 0.37 MPa respectively), the relative variation in the lateral and the medial ROI is very different (45% and 72% ... was developed (Abaqus/Standard version 6.6-1, Abaqus, Inc., Providence, RI) from the "Standard Tibia" model [1,5,2226] This model was adapted for the implantation of a standard Genesis II asymmetric...
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Báo cáo lâm nghiệp:" Foliar N and P resorption and nutrient levels along an elevational gradient in Juniperus oxycedrus L. subsp. " pot
... to N, P, K and soil moisture (Tab VI) Significant correlations were found between foliar N and P concentrations and absolute and proportional resorption rates and resorption rates and soil moisture ... VII Pearson correlation coefficients between foliar N and P concentrations and absolute and proportional resorption rates and resorption rates and soil moisture Parameter Correlation coefficient ... absolute and proportional foliar N and P and soil parameters were changed along the topographic position and, (b) to examine the factors which effective on absolute and proportional foliar N and P resorption...
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Báo cáo khoa học: "Increasing N and P resorption efficiency and proficiency in northern deciduous hardwoods with decreasing foliar N and P concentrations" doc
... between leaf N and litter N, and leaf P and litter P for hardwoods of eastern Canada indicate that resorption efficiency and proficiency generally increased with a decrease in leaf N and P The better ... leaf N and P concentrations on their resorption efficiency and proficiency MATERIALS AND METHODS The sites were located in southern Québec at the Morgan Arboretum of McGill University and at ... species and plot were collected and pooled for analysis Litter sampling was done between 1–15 October 1994 at the Morgan Arboretum, and between 15 September and 15 October 1994 at the SBL Nutrient resorption...
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Báo cáo y học: "Histone deacetylase inhibitors modulate metalloproteinase gene expression in chondrocytes and block cartilage resorption" ppt
... For quantitative real-time PCR, sequences and validation for MMP and TIMP primers and probes are as previously described [33] and so are ADAMTS primers and probes [34] In order to control against ... block cartilage resorption and concurrently decrease collagen- and gelatin-degrading proteolytic activities The combination of IL-1α and OSM has previously been shown to reproducibly and potently ... isolated and subjected to quantitative RT-PCR for expression of the genes (a, b) MMP1 and MMP13 and (c) ADAMTS4, ADAMTS5, and ADAMTS9 Data were normalised to the 18 S rRNA housekeeping gene; means and...
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Báo cáo y học: "Negative association of the chemokine receptor CCR5 d32 polymorphism with systemic inflammatory response, extra-articular symptoms and joint erosion in rheumatoid arthritis" ppsx
... DNASE2 -1066 G and of the CCR5 wild type allele manuscript supported by MR and CB All authors read and approved the final manuscript As DNASE2 and CCR5 are both expressed in monocytes and macrophages, ... genetic studies MR and MP performed acquisition of the data MR and CB performed analysis and interpretation of the data MP, SA and UW contributed to the recruitment of patients and to the acquisition ... susceptibility and on the clinical course of RA in a large and clinically well characterized German patient cohort, which has previously been analyzed for other genetic influences [21-23] Materials and...
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ENCYCLOPEDIA OF ENVIRONMENTAL SCIENCE AND ENGINEERING - SEDIMENT TRANSPORT AND EROSION ppt
... Sedimentation EROSION Most of the sediment in streams is produced by the following processes:1 1) 2) 3) 4) Sheet erosion, Gully erosion, Stream channel erosion, Mass movements of soil (e.g landslides and ... AM SEDIMENT TRANSPORT AND EROSION TABLE Canal classification21,44 1077 TABLE Constants in Eqs (47) to (54) (ft-sec units) Channel type 1) Sand bed and banks 2) Sand bed and cohesive banks Coefficient ... (gsand (1) ϩ K sand log10 T ) Xsand * ϩ (gsilt (1) ϩ K silt log10 T ) Xsilt (58) * ϩ (gclay (1) ϩ K clay log10 T ) X clay in which T ϭ time in years; Xsand ϭ fraction of sand in deposit; ␥*sand(1)...
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Báo cáo y học: "Matrix metalloproteinase-8 deficiency increases joint inflammation and bone erosion in the K/BxN serum-transfer arthritis model" pptx
... inflammation and bone erosion in Mmp8deficient mice To quantify joint involvement, we assessed synovial inflammation and bone erosion in hematoxylin and eosin stained sections of ankle joints, and cartilage ... [22]: = normal bone; = small areas Page of 12 of resorption; = more numerous areas of resorption; = obvious resorption; and = full-thickness resorption areas in the bone Osteoclast activity was ... 10 days Ankle joints were embedded in paraffin and sections were cut and stained with hematoxylin and eosin for evaluation of inflammation and bone erosion, as previously described [21] For analysis...
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estimation of erosion resistance of cohesive bank in river and around river mouth
... mixing rates of sand, silt and clay, and to moisture contents, salinity, consolidation, and vegetation In Chapter 4, erosion mechanism and erosion resistance of cohesive bed, bank and shore [4] ... eight spectral bands (band designations), with a spatial resolution of 30 meters for bands to and band Resolution for band (thermal infrared) is 60 meters and resolution for band (panchromatic) ... by using images of band (1.55 -1.75 μm) and band (0.76-0.90 μm) of Lansat/TM and evaluated the parameter TM5-2 defined as the following equation: TM 5− = Band − Band Band + Band (2.2) By using...
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Weathering and erosion(notes 4)
... steep and fast and can move large boulders and cobbles In its lower reaches the river slows down and is depositing gravel and sand Where the water enters Atlin Lake it slows down even more, and ... of mechanical and chemical weathering serve to weaken, soften and break up rocks so that they are more susceptible to erosion Erosion involves removal and transportation of rock and rock products ... removes loose particles from the surface, and washes them into channels and eventually into streams Creeks and rivers transport both large and small particles, and promote breakdown of large pieces...
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Estimation of erosion resistance of cohesive bank in river and around river mouth
... Materials and methods 2.2.3 Results of analyzing satellite data 2.2.4 The erosion mechanism of beaches in Site-A and Site-B 2.2.5 Numerical model Effects of Sand Extraction on Beach Erosion Conclusions ... samples with only sand and clay Remolded samples with 40% of silt Remolded samples with 10% sand Remolded samples with the change of moisture content Samples with only sand-clay content and moisture ... 2.28 Fig 2.29 Beach erosion around fish harbor Beach erosion by sand extraction Location of study areas Location of Site-A (Landsat/TM-1989, May 29) Location of Site-B (Landsat/TM-1989, May 29)...
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EMBEDDED LINUX SYSTEM DESIGN AND DEVELOPMENT.pdf
... Ⅲ Understand the embedded Linux development environment Ⅲ Understand and create Linux BSP for a hardware platform Ⅲ Understand the Linux model for embedded storage and write drivers and applications ... memory leaks and memory corruption in applications and drivers Ⅲ Learn methods to profile applications and the kernel Ⅲ Understand uCLinux architecture and its programming model Ⅲ Understand the embedded ... Ltd Ⅲ Windows, WinCE and Microsoft are registered trademarks and MS-DOS and DirectX are trademarks of Microsoft Corporation Ⅲ Solaris and Java are registered trademarks and ChorusOS is a trademark...
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09 Physical and Chemical Characteristics of DDGS revisions.
... during transport and handling – particle and ingredient segregation (separation) occurs when particles of different sizes and bulk densities are blended together and transported or handled Pellet ... Size, Bulk Density and pH Particle size and particle size uniformity of feed ingredients are important considerations of livestock and poultry nutritionists when selecting sources and determining ... Characteristics of U.S DDGS Physical and chemical characteristics of distiller’s dried grains with solubles (DDGS) vary among sources and can influence its feeding value and handling characteristics These...
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