archive-com.com » COM » S » SEQUOIASCI.COM

Total: 241

Choose link from "Titles, links and description words view":

Or switch to "Titles and links view".
  • mat2tt.m | Sequoia Scientific
    fix data col 256 data byte 2 2 length data col 2 data col fix data col 256 256 seperate high and low bytes fid fopen FileNameDat wb open for writing wb result fwrite fid data byte uint8 write fclose all else FileNameLog PathName uigetfile log Select the log file s you want to process MultiSelect on and then select the log file s for processing get their names and directory if iscell FileNameLog 0 special case if we only have one file data load fullfile char PathName char FileNameLog load the LOG file into matrix called data s num2str FileNameLog create a string with the LOG file name k find s s k 1 k 3 DAT change extension to DAT FileNameDat fullfile PathName s create new path and filename for the DAT file to be saved shortly m n size data data col reshape data 1 m n reshape data into column taken across rows data byte 1 2 length data col 2 fix data col 256 data byte 2 2 length data col 2 data col fix data col 256 256 seperate high and low bytes fid fopen FileNameDat wb open for writing result fwrite fid data byte uint8 write fclose all else if more than one LOG file has been selected we will no loop through all entries in FileNameLog and process the files one by one FileNameLog sort FileNameLog sort it for x 1 length FileNameLog data FileNameDat data byte data col s reset matrices data load fullfile char PathName char FileNameLog x load the LOG file into matrix called data s num2str char FileNameLog x create a string with the LOG file name k find s s k 1 k 3 DAT change extension to DAT FileNameDat fullfile PathName s create new path and

    Original URL path: http://www.sequoiasci.com/article/mat2tt-m/ (2016-02-13)
    Open archived version from archive


  • MATLAB Scripts | Categories | Sequoia Scientific
    User must input columns 39 and 40 as an nx2 matrix together with the year Output is Read more Processing LISST 100 and LISST 100X data in MATLAB April 30 2008 Sequoia April 30 2008 I INTRODUCTION II SOFTWARE FUNCTIONS II 1 Using the invert p processing file II 2 Using Matlab functions for detailed processing Loading your files Viewing the raw data files Viewing partial results with Read more getscat m April 29 2008 GETSCAT M Sequoia April 29 2008 This article contains the source code for the getscat m file that is used to obtain raw scattering data from a LISST 100 or LISST 100X dat file To use copy and paste all text between the Read more tt2mat m April 29 2008 TT2MAT M Sequoia April 29 2008 This article contains the code for the tt2mat m Matlab script used for reading the binary dat files from LISST 100 LISST 100X LISST Portable and LISST Infinite To use copy all lines between Read more Matlab processing of LISST ST data April 18 2008 MATLAB processing of LISST ST data Sequoia April 18 2008 this article is based on Application Note L011 The LISST ST is programmed to store data from many successive settling experiments Each settling experiment by default Read more Next More in About About Suspended Sediment Concentration and Particle Sizing Methods Course Staff News PiE Conference 2014 PiE Conference 2014 Customer List Newsletter Contact International Distributors Our Newsletter Sign up to get the latest news on Sequoia and our products Home Products Product Overview LISST Instruments LISST 100X LISST ABS LISST Portable XR LISST Holo LISST Deep LISST StreamSide LISST STX LISST Hydro LISST Infinite LISST VSF LISST STOKES Optical VSF Sensors LISST SL LISST 25X FlowControl Instruments FlowControl Lab FlowControl Sub Radiative Transfer Models

    Original URL path: http://www.sequoiasci.com/article_category/matlab-scripts/page/2/ (2016-02-13)
    Open archived version from archive

  • LISST-SL DATA from Cowlitz River, March 2011 | Sequoia Scientific
    and ft s this can be changed at will on the LISST SL topside control box Close to the bottom the velocity varies significantly due to eddies spinning off the bottom The second figure shows the concentration profile The LISST SL measures the volume concentration of the suspended sediment but by assuming a sediment density the volume concentration can be converted to mass concentration as in this plot created by assuming a density of 2 65 g cm 3 Note the large variability of concentration at a given depth this variability is due to turbulent eddies being advected past the instrument and will be completely missed with a depth integrating sampler or with a point sampler The third figure shows the variation in mean particle size down the profile The mean size increases from around 15 µm at the surface to 40 50 µm at the bottom Note also the large variability in mean size at any given depth due to turbulent eddies passing by the LISST SL This plot shows the variability in the size distribution in the profile A ridge appears around 30 40 µm where the concentration is constant down through the profile For the larger particles larger than 150 µm the concentration is relativley low in the surface 2 feet then increases towards the bottom The last figure shows the sediment flux in 2 size fractions smaller and larger than 63 µm The blue line shows the flux of the 63 µm particles Although the concentration of these particles is constant through the profile the flux of small particles is decreasing towards the bottom because the velocity is decreasing The reverse is true for the 63 µm particles Their concentration is strongly increasing towards the bottom so the flux of particles 63 µm is increasing closer

    Original URL path: http://www.sequoiasci.com/article/lisst-sl-data-from-cowlitz-river-march-2011/ (2016-02-13)
    Open archived version from archive

  • The Influence of Particles Outside the Size Range of the LISST | Sequoia Scientific
    100X type C The green curves show the scattering signatures on rings 1 32 from single sized particles with sizes from 543µm mid point of size bin 33 or ring 0 if it existed to 1731 µm mid point of size bin 40 or ring 7 if it existed What is clear from figure 1 is that the intensity of light scattering on the innermost rings drop off very quickly as particles gets larger The intensity on ring 1 drops from 1 2 to 0 4 as the particle size increases from 460 to 640 µm Figure 2 below shows the scattering patterns on the 32 rings for particles that are SMALLER than the lower size limit Figure 2 The blue curve is the scattering signature from single sized particles with a size of 2 72 µm the mid point of size bin 1 on a type C LISST The green curves show the scattering signatures on rings 1 32 from single sized particles with sizes from 2 30µm mid point of size bin 0 or ring 33 if it existed down to 0 23µm mid point of size bin 15 or ring 48 if it existed The figure shows that the drop off in light intensity on the outermost LISST rings is much slower than the drop off for the large particles cf Figure 1 When these scattering patterns are inverted to the volume distribution the influence of particles outside of the size range on the LISSTs can be evaluated This is done in figure 3 showing the response function in terms of volume for single size particles across a wide size range It is seen that the cut off at the coarse particle end is sharp i e particles much larger than twice the maximum size are strongly

    Original URL path: http://www.sequoiasci.com/article/the-influence-of-particles-outside-the-size-range-of-the-lisst/ (2016-02-13)
    Open archived version from archive

  • Research | Categories | Sequoia Scientific
    Distributors Sequoia Scientific New Product LISST ABS Log In Register Home Article Page 2 News DeepWater Horizon Oil Spill in the Gulf of Mexico May 3 2010 DeepWater Horizon spill and the LISST 100X Sequoia May 3 2010 The LISST 100X instrument from Sequoia Scientific Inc has been used intensively by the oil spill research community in the last few years to measure the size and concentration Read more Next More in About About Suspended Sediment Concentration and Particle Sizing Methods Course Staff News PiE Conference 2014 PiE Conference 2014 Customer List Newsletter Contact International Distributors Our Newsletter Sign up to get the latest news on Sequoia and our products Home Products Product Overview LISST Instruments LISST 100X LISST ABS LISST Portable XR LISST Holo LISST Deep LISST StreamSide LISST STX LISST Hydro LISST Infinite LISST VSF LISST STOKES Optical VSF Sensors LISST SL LISST 25X FlowControl Instruments FlowControl Lab FlowControl Sub Radiative Transfer Models EcoLight S HydroLight Accessories How to Buy Request a Quote Terms Of Sale Support FAQ Downloads Warranty Info Installation Requirements Responsibilities Warranty Register a Product Returns Contact Support Library Articles Technical Papers Standards About Staff News Events PiE Conference 2014 Customer List Newsletter Contact Sequoia

    Original URL path: http://www.sequoiasci.com/article_category/research/page/2/ (2016-02-13)
    Open archived version from archive

  • Troubleshooting | Categories | Sequoia Scientific
    particles in a suspension can be expressed as the total volume OR total Read more OpenConnection Error March 29 2010 I Cannot Connect to Talk to Wake up my LISST 100 or LISST 100X OpenConnection Error 7 Initializing port 0 Sequoia March 29 2010 Q When I try to connect to my LISST 100 or LISST 100X I get the following error messages Read more I Cannot Connect to my LISST 100X February 2 2010 I cannot connect to my LISST 100X Sequoia February 2 2010 Q I cannot connect to my LISST 100X The communication cable is connected to my computer as well as my LISST 100X and the LISST SOP is running but I am unable to talk Read more No Valid Query Response January 13 2010 Troubleshooting LISST 100X No Valid Query Response Sequoia January 13 2010 Q When I try to query the instrument I get this error A In addition to checking the cable power and serial port settings make sure that the Read more Could Not Find Instrumentxxxx section in LISST ini January 13 2010 Could Not Find Instrumentxxxx Section in LISST INI Sequoia January 13 2010 Q When I try to program the instrument I get this error note Instrument1335 will change depending on the serial number of your instrument A Go Read more Previous Next More in About About Suspended Sediment Concentration and Particle Sizing Methods Course Staff News PiE Conference 2014 PiE Conference 2014 Customer List Newsletter Contact International Distributors Our Newsletter Sign up to get the latest news on Sequoia and our products Home Products Product Overview LISST Instruments LISST 100X LISST ABS LISST Portable XR LISST Holo LISST Deep LISST StreamSide LISST STX LISST Hydro LISST Infinite LISST VSF LISST STOKES Optical VSF Sensors LISST SL LISST 25X FlowControl

    Original URL path: http://www.sequoiasci.com/article_category/troubleshooting/page/2/ (2016-02-13)
    Open archived version from archive

  • Sequoia’s Holiday Hours | Sequoia Scientific
    s Holiday Hours December 23 2014 So that our employees may spend time with their families and celebrated the Holidays our office will close at mid day Dec 24 2014 We will re open the morning of Jan 2 2015 The best way to reach us during this time is by sending an email The info sequoiasci com and support sequoiasci com addresses will be monitored and urgent requests will be responded to We would like to wish everyone a Happy Holidays More in About About Suspended Sediment Concentration and Particle Sizing Methods Course Staff News PiE Conference 2014 PiE Conference 2014 Customer List Newsletter Contact International Distributors Categories General News Press Releases Our Newsletter Sign up to get the latest news on Sequoia and our products Home Products Product Overview LISST Instruments LISST 100X LISST ABS LISST Portable XR LISST Holo LISST Deep LISST StreamSide LISST STX LISST Hydro LISST Infinite LISST VSF LISST STOKES Optical VSF Sensors LISST SL LISST 25X FlowControl Instruments FlowControl Lab FlowControl Sub Radiative Transfer Models EcoLight S HydroLight Accessories How to Buy Request a Quote Terms Of Sale Support FAQ Downloads Warranty Info Installation Requirements Responsibilities Warranty Register a Product Returns Contact Support

    Original URL path: http://www.sequoiasci.com/about/news/sequoias-holiday-hours-2014/ (2016-02-13)
    Open archived version from archive

  • Sequoia teaching course on Suspended Sediment Concentration and Sizing methods at Battelle conference | Sequoia Scientific
    is provide a survey of suspended particle sediment concentration size distribution and dynamics describe and compare particle sizing technologies and methods and examine case studies in sedimentology and environmental monitoring A variety of methods such as gravimetric analysis sieving settling column optical and acoustic backscattering and laser diffraction will be presented as well as some biases strengths and weaknesses and inter comparability of each We finish the short course with a presentation of case studies using SSC and PSD measurements in sediment research monitoring and management Time is running short Registration Deadline Extended to 21 November More info and links to registration at http www sequoiasci com about sediments course Course Title Suspended Sediment Concentration and Particle Sizing Methods in Support of Sediment Research Monitoring and Management Where Eighth International Conference on Remediation and Management of Contaminated Sediments January 12 15 2015 New Orleans Louisiana When Monday January 12th 2015 1 00 pm to 5 00 pm Who Should Attend Environmental scientists engineers and regulators interested in learning more about the applications of sediment concentration and sizing methodologies in sedimentology and environmental management Conference The Eighth International Conference on Remediation and Management of Contaminated Sediments will be held January 12 15 2015 in New Orleans Louisiana The Conference is organized and presented by Battelle and sponsors include public and private sector organizations active in environmental assessment remediation and management Attendance is expected to be 900 to 1 000 scientists engineers regulators remediation site owners constructors and other environmental professionals representing universities government agencies consultants and R D and service firms from approximately 30 countries More in About About Suspended Sediment Concentration and Particle Sizing Methods Course Staff News PiE Conference 2014 PiE Conference 2014 Customer List Newsletter Contact International Distributors Categories General News Press Releases Our Newsletter Sign up to

    Original URL path: http://www.sequoiasci.com/about/news/sequoia-teaching-course-on-suspended-sediment-concentration-and-sizing-methods-at-battelle-conference/ (2016-02-13)
    Open archived version from archive



  •