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Dissertations / Theses on the topic 'Soil system'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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1

Nolin, Anne Walden 1958. "CLASSIFICATION AND MAPPING OF SOILS USING A MULTISPECTRAL VIDEO SYSTEM AND COMPUTER-AIDED ANALYSIS." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276549.

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An airborne multispectral video system was used to collect soil spectral data over a four-square mile region in northeastern Arizona. Six multispectral video images were digitized. Using the red and blue bands of each image, an unsupervised classification was performed. Each was referenced to a digitized U.S. Soil Conservation Service map resulting in classification precisions ranging from 0-92.4 percent. Ground radiometric measurements were made to ascertain spectral separability of the soil samples. Soil color was determined to try to relate Munsell value to classification precision. Misclas
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2

Dorsey, Jay Dunton. "Farming system effects on soil properties /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487863429092017.

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3

Malgaretti, Maura. "Decabromodiphenyl ether fate in soil system : sorption in soil matrices and new perspective for soil remediation." Thesis, University of Strathclyde, 2016. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27554.

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Polybrominated diphenyl ethers (PBDEs) have been used for decades as flame retardants in polymeric materials. Products containing lower brominated congeners have been banned because of concerns about their toxicity to neurological, reproductive and endocrinal systems. Restrictions on the use of the deca-BDE mixture, which contains 97% of the fully brominated congener BDE-209, have been initially delayed. Nowadays the addition of BDE-209 to the Stockholm Convention on Persistent Organic Pollutants is under evaluation. BDE-209 fate in soil, as for other hydrophobic organic compounds, is strongly
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4

Caniquitte, Sabine Sophie. "Soil microbial community, soil aggregation and cropping system: study of their relationship." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=19278.

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The effect of six cropping systems on soil carbon, aggregation and microbial community was examined after three growing seasons. The six cropping systems involved corn, sorghum, soybean, red clover, timothy and bare fallow, and differed in terms of tillage practice, type of crop (perennial versus annual) and type, amount and quality of carbon inputs to soil. Soil structure under sorghum and timothy differed from that of bare soil. Soil total carbon content exceeded that of fallow only under the two perennial cropping syste
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5

Mampana, Reedah Makgwadi. "Cropping system effects on soil water, soil temperature and dryland maize productivity." Diss., University of Pretoria, 2014. http://hdl.handle.net/2263/43165.

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Improved soil water conservation has become an important subject in semi-arid areas due to low and erratic rainfall which is often combined with higher temperatures to provide unsuitable conditions for successful crop productivity. Dryland agriculture remains vulnerable to yield losses in these areas. This calls for implementation of conservation agricultural practices that would improve dryland maize productivity. An on-station field trial was started in 2007 at Zeekoegat experimental farm (24 kilometers north of Pretoria), to establish the effect of different conservation agriculture practic
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6

Viscarra, Rossel Raphael A. "Development of a Proximal Soil Sensing System for the Continuous Management of Acid Soil." Thesis, The University of Sydney, 2001. http://hdl.handle.net/2123/674.

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The notion that agriculturally productive land may be treated as a relatively homogeneous resource at thewithin-field scale is not sound. This assumption and the subsequent uniform application of planting material,chemicals and/or tillage effort may result in zones within a field being under- or over-treated. Arising fromthese are problems associated with the inefficient use of input resources, economically significant yield losses,excessive energy costs, gaseous or percolatory release of chemicals into the environment, unacceptable long-term retention of chemicals and a less-than-optimal grow
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7

Viscarra, Rossel Raphael A. "Development of a Proximal Soil Sensing System for the Continuous Management of Acid Soil." University of Sydney. Agricultural Chemistry and Soil Science, 2001. http://hdl.handle.net/2123/674.

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The notion that agriculturally productive land may be treated as a relatively homogeneous resource at thewithin-field scale is not sound. This assumption and the subsequent uniform application of planting material,chemicals and/or tillage effort may result in zones within a field being under- or over-treated. Arising fromthese are problems associated with the inefficient use of input resources, economically significant yield losses,excessive energy costs, gaseous or percolatory release of chemicals into the environment, unacceptable long-term retention of chemicals and a less-than-optimal grow
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8

Fotovat, Amir. "Chemistry of indigenous Zn and Cu in the soil-water system : alkaline sodic and acidic soils." Title page, contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phf761.pdf.

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Copies of author's previously published articles inserted. Bibliography: leaves 195-230. In this study the soil aqueous phase chemistry of Zn and Cu in alkaline sodic soils are investigated. The chemistry of trace metal ions at indigenous concentrations in alkaline sodic soils are reported. Metal ions at low concentrations are measured by the graphite furnace atomic absorption spectrometry (GFAAS) technique.
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9

Thottan, Jacob A. "Micro-computer-controlled soil nitrate measurement system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1995. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/MQ31647.pdf.

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10

Johansson, Marcus. "Soil Moisture Monitoring System Using LoRaWAN Technology." Thesis, Linnéuniversitetet, Institutionen för datavetenskap och medieteknik (DM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-105670.

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An IoT device measuring soil moisture to help a municipality improve the work surrounding irrigation is deployed for testing and used by the concerned municipal workers. The IoT device is an initial prototype using Pycom’s LoPy4 with expansion board 3.1 and 3xAAA batteries as power supply. The prototype is not suitable for larger-scale testing due to the size, cost, and power consumption. This thesis focuses on decreasing the cost and size while increasing the battery life for the IoT device.The IoT device is communicating using the LoRaWAN protocol. For the device to be as energy-efficient as
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11

Maruska, John, and Judah Schad. "MARS-COLONIZATION SENSOR SYSTEM FOR SOIL ANALYSIS." International Foundation for Telemetering, 2016. http://hdl.handle.net/10150/624182.

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This paper discusses a modular open source electronic soil analysis system embedded in a remote vehicle designed for use on a colonizationeffort Mars rover. The embedded system consists of a soil extraction drill sheath, a temperature and moisture array sensor sheath, a sample return bay specialized for RamanFluorescence spectrometry, and an Ethernet bridge radio for communication, all controlled through several microcontroller boards. A Windowsbased graphical engagement application provides real time control. A Linuxbased scripting application provides postprocessing, graphing, and
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12

Montas, Hubert J. "A decision support system for soil conservation planning /." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59831.

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A Decision Support System for the design and planning of soil conservation systems on a watershed scale was conceived and applied to southwestern Quebec. The system integrated Geographical Information System, distributed parameter hydrologic modeling and Expert System technologies. Maps of appropriate soil conservation practices were produced for two small rural basins representative of the study region. The effect of the selected practices on runoff and sediment was assessed using the ANSWERS model. Erosion sites were targeted using a once-in-25 year design storm. It was observed that small p
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13

Murray, Sam. "Development of a soil respiration isotopic sampling system." Thesis, University of Canterbury. School of Biological Sciences, 2014. http://hdl.handle.net/10092/9652.

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The rate of carbon turnover in soil is a balance between the input of carbon by plants through their roots and associated fungi and the loss of carbon due to plant and microbial respiration, oxidation and leaching. Soil carbon dynamics are notoriously difficult to measure, and being able to separate total soil respiration into its autotrophic and heterotrophic components would help understanding of carbon cycling processes. Where autotrophic respiration originates from roots and their associated mycorrhizal fungi, using newly fixed carbon, and heterotrophic respiration originates from the brea
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14

Jaapar, Abd Rasid Bin. "A framework of a national slope safety system for Malaysia." Thesis, Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37384600.

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15

Nichols, Lara Kaitlin. "Relationships Among Soil Properties and Soil CO2 Efflux in a Loblolly Pine-Switchgrass Intercropped System." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/51945.

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The components of soil CO2 efflux are affected by many soil properties including temperature, moisture, microbial abundance and activity, and other soil physical and chemical properties. Changes in these factors can result in high spatial and temporal variability of total soil CO2 efflux. Low molecular weight organic acids (LMWOAs), dissolved organic carbon (DOC) and dissolved organic nitrogen (DON), microbial biomass and activity were measured to evaluate the impact of intercropping switchgrass (Panicum virgatum L.) in a loblolly pine (Pinus taeda L.) plantation. Surface soil samples (0-15 cm
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16

Brierley, Euan. "Nitrogen transformations in an acid forest soil." Thesis, University of Reading, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329579.

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17

Achour, Hichem. "Evaluation of soil moisture in a water harvesting system with supplemental bubbler irrigation system." Thesis, The University of Arizona, 1985. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1985_354_sip1_w.pdf&type=application/pdf.

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18

Marcolini, Graziella <1977&gt. "Soil application of Meliaceae derivatives: effect on carbon and nitrogen dynamics in the soil-plant system." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5530/1/Marcolini_Graziella_tesi.pdf.

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The effect of soil incorporation of 7 Meliaceae derivatives (6 commercial neem cakes and leaves of Melia azedarach L.) on C and N dynamics and on nutrient availability to micropropagated GF677 rootstock was investigated. In a first laboratory incubation experiment the derivatives showed different N mineralization dynamics, generally well predicted by their C:N ratio and only partly by their initial N concentration. All derivatives increased microbial biomass C, thus representing a source of C for the soil microbial population. Soil addition of all neem cakes (8 g kg-1) and melia leaves (16 g k
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19

Marcolini, Graziella <1977&gt. "Soil application of Meliaceae derivatives: effect on carbon and nitrogen dynamics in the soil-plant system." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2013. http://amsdottorato.unibo.it/5530/.

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The effect of soil incorporation of 7 Meliaceae derivatives (6 commercial neem cakes and leaves of Melia azedarach L.) on C and N dynamics and on nutrient availability to micropropagated GF677 rootstock was investigated. In a first laboratory incubation experiment the derivatives showed different N mineralization dynamics, generally well predicted by their C:N ratio and only partly by their initial N concentration. All derivatives increased microbial biomass C, thus representing a source of C for the soil microbial population. Soil addition of all neem cakes (8 g kg-1) and melia leaves (16 g k
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20

Neumann, Anthony. "Bacterial interactions with anthracene in a model soil system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq22647.pdf.

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21

Tracy, Saoirse Rosanna. "The response of root system architecture to soil compaction." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/13037/.

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Soil compaction has been described as the most serious environmental problem caused by conventional agriculture, as it results in several stresses which may interact simultaneously, including increased soil strength, decreased aeration and reduced hydraulic conductivity. Root system architecture (RSA) is the arrangement of roots within the soil matrix and is important because the specific deployment of roots within the soil can determine soil exploration and resource uptake. As roots deliver water and nutrients to growing plants, whilst also providing anchorage, their importance cannot be over
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22

Yasuda, Hiroshi. "Improvement of model reliability in a soil-plant system." Kyoto University, 1995. http://hdl.handle.net/2433/160779.

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本文データは平成22年度国立国会図書館の学位論文(博士)のデジタル化実施により作成された画像ファイルを基にpdf変換したものである<br>Kyoto University (京都大学)<br>0048<br>新制・論文博士<br>博士(工学)<br>乙第8985号<br>論工博第3012号<br>新制||工||1006(附属図書館)<br>UT51-95-V472<br>(主査)教授 井上 頼輝, 教授 寺島 泰, 教授 松井 三郎<br>学位規則第4条第2項該当
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23

Cooperband, Leslie Rose. "Soil phosphorus dynamics in a humid tropical silvopastoral system /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487777901660164.

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24

Al-Himdani, Mizher. "Highway Drain Depth and Soil Stability." DigitalCommons@USU, 1987. https://digitalcommons.usu.edu/etd/4644.

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The presence of moisture in the soil reduces its shear strength. After the rain or snowmelt, the high percentage of moisture in the subgrade of highway, causes the instability resulting into failure of the highway due to high water table. Therefore, it is essential to install a drainage system to remove the excess moisture from the subgrade of highways to avoid its failure. In the present study, six different soil samples have been studied to observe its failure by triaxial shear strength and corresponding moisture content was noted. The tension applied to remove moisture was converted to equi
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25

Hector, D. J. "Capture of soil water by crop root systems." Thesis, University of Nottingham, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378493.

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26

Arias, Eduardo Fernando. "CATEGORIZATION OF SOIL SUITABILITY TO CROP SWITCHGRASS AT MISSISSIPPI, US USING GEOGRAPHIC INFORMATION SYSTEM, MULTICRITERIA ANALYSIS AND SENSITIVITY ANALYSIS." MSSTATE, 2008. http://sun.library.msstate.edu/ETD-db/theses/available/etd-04042008-095516/.

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Switchgrass (Panicum virgatum) has been widely investigated because of its notable properties as an alternative pasture grass and as an important biofuel source. The goal of this study was to determine soil suitability for Switchgrass in Mississippi. A linear weighted additive model was developed to predict site suitability. Multicriteria analysis and Sensitivity analysis were utilized to optimize the model. The model was fit using seven years of field data associated with soils characteristics collected from NRCS-USDA. The best model was selected by correlating estimated biomass yield with ea
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27

Konings, Alexandra Georges. "Microwave remote sensing of water in the soil - plant system." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/101833.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 171-191).<br>Remotely sensed measurements made by radars or radiometers in the low microwave frequency range are sensitive to soil moisture, soil roughness, and vegetation water content. Measurements made at multiple polarizations can be used to determine additional ancillary parameters alongside the primary variable of interest. However, if an attempt is made to retrieve too many parameters from t
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28

Morgan, Mark T. "Evaluation of a soil physical properties measurement system SP²MS /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487759914762283.

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29

Kim, Bruce Chang Shik. "MULTI-STEP ELECTROCHEMICAL IMPULSE GENERATOR AND POTENTIAL MONITORING SYSTEM." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275454.

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30

Thomson, Petra Elisabeth. "Factors controlling N₂O emissions from soils : a study using a novel soil monolith/flux chamber system." Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/27537.

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Soils are the most important source of N<SUB>2</SUB>O emissions to the atmosphere, with denitrification and nitrification being the major processes responsible for production of the gas. Although much is known about factors controlling these processes and N<SUB>2</SUB>O fluxes from them it is still difficult to obtain accurate N<SUB>2</SUB>O emission estimates due to the highly heterogeneous nature of soils. Better estimates can only be achieved by a combination of direct measurements in key ecosystems and by quantifying the relationships between fluxes and the controlling parameters, as an ai
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31

Hamadto, Mohammed El Fatih Mukhtar. "Expansive soil behaviour and the development of a knowledge based system associated with foundations in expansive soils." Thesis, Heriot-Watt University, 2000. http://hdl.handle.net/10399/526.

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32

Griffin, J. R., and Jeffrey C. Silvertooth. "Evaluation of an Acid Soil Conditioner in an Irrigated Cotton Production System." College of Agriculture, University of Arizona (Tucson, AZ), 1999. http://hdl.handle.net/10150/197270.

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A single field study was conducted on a sodium-affected soil at the University of Arizona’s Maricopa Agricultural Center (MAC) in 1998. NuCotn 33B was dry planted and watered-up on 5 May 1998. Two treatments were evaluated; treatment 1 received no acid and treatment 2 received water-run acid applications. The acid used in this evaluation was sulfuric acid (H₂SO₄). The acid was applied at approximately 11 gallons acid/acre at each scheduled irrigation throughout the entire growing season. All other agronomic inputs and decisions were uniformly applied to both treatments in the same manner throu
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33

Norton, E. R., and J. C. Silvertooth. "Evaluation of an Arid Soil Conditioner in an Irrigated Cotton Production System." College of Agriculture, University of Arizona (Tucson, AZ), 2000. http://hdl.handle.net/10150/197515.

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A single field study was conducted on a sodium-affected soil at the University of Arizona’s Maricopa Agricultural Center (MAC) in 1999. Deltapine DP33B was dry planted and watered-up on 13 April 1999. Two treatments were evaluated; treatment 1 received no acid and treatment 2 received water-run acid applications. The acid used in this evaluation was sulfuric acid (H2SO4) and was applied at approximately 11 gallons acid/acre at each scheduled irrigation throughout the entire growing season. All other agronomic inputs and decisions were uniformly applied to both treatments. Lint yields were not
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34

Norton, E. R., L. J. Clark, and H. Borrego. "Evaluation of Variable Rate Fertilizer Applications in an Arizona Cotton Production System." College of Agriculture, University of Arizona (Tucson, AZ), 2005. http://hdl.handle.net/10150/198174.

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A project was initiated in the 2004 cotton (Gossypium hirsutum) growing season in an effort to accomplish two major objectives. The first was to continue with phosphorus (P) fertilization evaluations that have taken place in the Upper Gila River Valley for the past four seasons by continuing to document the effects of P fertilization on crop yield and fiber quality. The second objective was to investigate the feasibility of utilizing a Global Positioning Systems (GPS) and Geographic Information Systems (GIS) technology for making variable rate (VR) applications of P fertilizers based upon yiel
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35

Thacker, Gary W., and Wayne E. Coates. "The Pegasus Rapid Plowdown System: A New Concept in Cotton Tillage." College of Agriculture, University of Arizona (Tucson, AZ), 1994. http://hdl.handle.net/10150/209621.

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This new concept in tillage is to open a deep, temporary slot next to the cotton row and to insert the stalks and/or roots into the slot before the soil falls back in. The Pegasus Rapid Plow Down System is a relatively simple implement which offers good residue burial and reliability. Our limited field test data indicate that this invention requires less energy and field work time than conventional tillage systems.
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36

Griffin, J. R., J. C. Silvertooth, and E. R. Norton. "Evaluation of Calcium Soil Conditioners in an Irrigated Cotton Production System." College of Agriculture, University of Arizona (Tucson, AZ), 1997. http://hdl.handle.net/10150/211130.

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In 1996 a single field experiment was conducted at Paloma Ranch, west of Gila Bend in Maricopa County Arizona. Nucoton 33B was dry planted and watered -up on 15 April. Treatments consisted of various rates and times of application of nitrogen (N) and calcium (Ca) from two sources (N-Carm and CAN-17), as well as a standard N source, UAN-32, along with a Calcium (Ca) check which received no Ca. Treatments], 2, and 3 each received a total of 280 lbs. N/acre. Treatment 4 received a total of 210 lbs. N/acre while treatment 5 received a total of 301 lbs. N/acre. Treatment 1 was a check plot and rece
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37

Ouattara, Korodjouma. "Improved soil and water conservatory managements for cotton-maize rotation system in the western cotton area of Burkina Faso /." Umeå : Dept. of Forest Ecology and Management, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200754.pdf.

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38

Lan, Chinchun. "Analysis of soil-root interaction." Connect to resource, 1985. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1119365654.

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39

Overstreet, Laura Flint. "Boron Deficiency and Chilling Injury Interactions in Tobacco Transplants Grown in the Float System." NCSU, 2002. http://www.lib.ncsu.edu/theses/available/etd-05222002-141629/.

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Decades of agricultural research have failed to determine the precise mechanisms of infliction caused by the conditions of boron deficiency and chilling injury. Both conditions affect the quality and marketability of tobacco transplants grown in the float system. Interestingly, boron deficiency and chilling injury produce strikingly similar symptoms in young tobacco transplants; so similar, in fact, that they are often confused for one another. This has lead to severe boron toxicity when growers treated chilling injury as boron deficiency by applying boron to non-deficient float beds. The obse
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40

Roberts, Philip Andrew 1962. "The effects of system variables on soil-vapor extraction of benzene and p-xylene in an unsaturated desert soil." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/278316.

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Water-unsaturated column experiments using benzene and p-xylene were performed with a desert soil sample (fc = 0.001) to simulate the removal of volatile organic compounds (VOC) by soil-vapor extraction. Higher flow rates of air were found to facilitate quicker VOC removal but lower flow rates were more efficient. Initial concentrations had no effect on the rate of VOC removal. Sorption of both compounds by the solid phase at 18 and 10 percent wetness was similar to that reported for saturated systems. At these moisture contents, Kp the for benzene averaged 0.03 cm 3/g and that for p-xylene av
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Griffin, J. R., J. C. Silvertooth, and E. R. Norton. "Evaluation of Calcium Soil Conditioners in an Irrigated Cotton Production System, 1997." College of Agriculture, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/210382.

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A single field experiment was conducted at Paloma Ranch, west of Gila Bend in Maricopa County Arizona in 1996 and 1997. NuCotn™ 33B was dry planted and watered -up on 15 April and 1 April in 1996 and 1997. Various rates and times of application of nitrogen (N) and calcium (Ca) from two sources [N-Cal™ (CO(NH₂)₂•CaC1₂) and CAN-17 (CaNO₃)] as well as a standard N source, UAN-32 [NH₄NO₃•CO(NH₂)₂] were used to evaluate the check In 1996 treatments 1, 2,and 3 each received a total of 280 lbs. N/acre, treatment 4 received a total of 210 lbs. N/acre, while treatment 5 received a total of 301 lbs. N/a
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42

Todman, Lindsay Caroline. "Mechanisms of water transport through soil from a pervaporative irrigation system." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/39345.

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This thesis presents the results of an investigation into the transport of water through soil from a pervaporative irrigation tube. This irrigation system uses a selective polymer membrane that allows water to cross by the process of pervaporation, which releases water into the soil in vapour phase. The polymer membrane is formed into a tube, buried in the soil and filled with saline water. The selectivity of the membrane retains salt within the tube whilst water is released, so the system treats the water and distributes it for irrigation simultaneously. The distribution of water from the sys
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43

Elmarakbi, Ahmed. "Width-dependent characteristics of pile/soil system subjected to lateral force." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0034/MQ62211.pdf.

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44

Rabbel, Inken [Verfasser]. "Analyzing feedbacks in a forest soil-vegetation-atmosphere system / Inken Rabbel." Bonn : Universitäts- und Landesbibliothek Bonn, 2019. http://d-nb.info/1188731319/34.

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45

LIN, CHANG-YU, and 林昌諭. "Earthquake response of soil-structural interaction system in finite depth soil." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/96698782980261595642.

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46

游正豪. "Study On Soil Digging System Applied for A Soil Sampling Vehicle." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/97710504789388736806.

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碩士<br>國立中興大學<br>生物產業機電工程學系<br>92<br>Abstract Using the human power to sample soil in the field takes time and tremendous effort. To solve this problem, soil sampling automation is essential and workable. The objectives of this study were to develop a soil sampling system and NIR system of diminish vibration mechanism applied on a soil sampling vehicle to replace traditional work in the field. The soil sampling system using the PLC makes the automatic possible. The purpose of setting the diminish vibration mechanism is to reduce the vibration on the NIR system to ensure the accuracy
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47

LeeChia-Jung and 李家榮. "Remediation for contaminated soil by HOC in soil washing circulation system." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/51687188180461062139.

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碩士<br>崑山科技大學<br>環境工程研究所<br>95<br>With the rapid industrial development recently and large amounts of usage in organic chemicals, the great nature balance has been badly damaged. This situation also causes extremely huge menace and damage to mankind. Furthermore, soil pollution cannot be found easily and it also results in higher difficulty for remediation. Many researches have testified that soils polluted with hydrophobic organic compound (HOCs) can be effectively remedied for soil by using surfactants to increase the solubilization of HOC. For soil remediation, it has proven to be an effecti
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48

潘明松. "The Dynamic Soil Properties and Simplified Model for Building-soil System." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/64370807326379817458.

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碩士<br>國立臺灣科技大學<br>營建工程技術學系<br>86<br>Since soil has unlimited-extension character. The analysis of dynamic soil-structure interaction becomes very complicated if the finite element method is used for simulation of the soil. To simplify the analytical model, the beam elements are utilized to simulate the soil. As the soil modal is subjected to the earthquakes, the shear modului and damping ratio of soil layers will vary with strain and time. The characteristics of these properties are investigated and applied to the beam elements for simulation of the soil. Site data are then used to pr
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Fang, Shi-Wen, and 方錫文. "Filtration Behavior of Soil-Geotextile System." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/95280368573849693883.

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50

Doron, Oded 1979. "Simulation of an INS soil analysis system." Thesis, 2007. http://hdl.handle.net/2152/3776.

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Global climate change in either the form of global warming or global cooling is occurring relatively rapidly today. Studies have shown that increased levels of greenhouse gases, especially atmospheric carbon dioxide (CO₂) are the dominate component contributing to the change. A reduction in CO₂ may be influenced by making larger efforts to sequester carbon in soil and therefore to not only keep soil organic carbon (SOC) levels steady but by possibly increasing them through human assistance. Soil sequestration of carbon has been estimated to have one of the largest potentials to sequester ca
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