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Dissertations / Theses on the topic 'Biomass quality'

Author: Grafiati

Published: 3 June 2025

Last updated: 19 July 2025

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1

Yano, Toshihiro. "Microbial utilization of poor quality biomass." Kyoto University, 1991. http://hdl.handle.net/2433/168777.

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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>農学博士<br>乙第7416号<br>論農博第1631号<br>新制||農||587(附属図書館)<br>学位論文||H3||N2267(農学部図書室)<br>UT51-91-C149<br>(主査)教授栃倉辰六郎, 教授外村辨一郎, 教授木村光<br>学位規則第5条第2項該当

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2

Salter, Elizabeth H. "Catalytic pyrolysis of biomass for improved liquid fuel quality." Thesis, Aston University, 2001. http://publications.aston.ac.uk/9633/.

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3

Brüll, Anja [Verfasser]. "Biomass - a renewable energy source? : Sustainable complementary biomass (re)production through Landscape Quality Management / Anja Brüll." Aachen : Shaker, 2015. http://d-nb.info/1080762744/34.

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4

Davis, Aika Yano. "Predicting behaviors and effects of biomass burning." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54843.

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Wildfires and prescribed burns are important sources of air pollutants and can significantly affect air quality at urban locations across large regions. Air quality forecasts generated with Eulerian numerical models can provide valuable information to environmental regulators and land managers about the potential impacts of fires. However, the ability of these models to simulate concentrated fire-related smoke plumes is limited since they lack fire specific physics and chemistry. A sub-grid plume model was coupled with a chemical transport model to address this issue. The modeling framework ce

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5

Adam, Judit. "Catalytic conversion of biomass to produce higher quality liquid bio-fuels." Doctoral thesis, Norwegian University of Science and Technology, Department of Energy and Process Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1739.

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6

Finch, Douglas Peter. "The impact of boreal biomass burning on North American air quality." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/29536.

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Understanding the quality of the air we breathe is critical in quantifying the impact that atmospheric chemistry has on health. Poor air quality increases the risk of heart and lung diseases as well as having a detrimental effect on climate, ecology and the built environment. The burning of fossil fuels and plant matter (biomass burning) creates large quantities of gases and particulate matter that impact air quality and the air we breathe. Biomass burning is estimated to contribute 400 Tg of non-methane organic compounds, 40 Tg of methane and 7.1 Tg of nitrogen oxides to the atmosphere each y

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7

Tilvikienė, Vita. "Management of tall fescue, cocksfoot and reed canary grass swards for biogas, biomass quality and energy value." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2012. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2012~D_20121115_154219-00563.

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Research objective The study was designed to investigate biomass production of tall fescue, cocksfoot, and reed canary grass and the quality of raw material for biogas as influenced by sward fertilization with different rates of nitrogen and different number of cuts per season and to establish the effect of fertilization with digestate on cocksfoot biomass production and quality. Research tasks: • to estimate the productivity of tall fescue, cocksfoot and reed canary grass, fertilized with different nitrogen rates, for biogas; • to assess the effect of cutting frequency and fertilization rate

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8

Jimoh, Taobat Adekilekun. "Water quality, biomass and extracellular polymeric substances in an integrated algae pond system." Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/57307.

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Integrated algae pond systems (IAPS) combine the use of anaerobic and aerobic bioprocesses to effect wastewater treatment. Although, IAPS as a technology process offers many advantages including efficient and simultaneous N and P removal, no requirement for additional chemicals, O2 generation, CO2 mitigation, and a biomass with potential for valorization, a lack of technological advancement and the need for large land area, has limited the reach of this technology at industrial scale. In mitigation, peroxonation was introduced as a tertiary treatment unit and its effect on COD and TSS of IAPS

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9

Iqbal, Yasir [Verfasser], and Iris [Akademischer Betreuer] Lewandowski. "Biomass quality of miscanthus genotypes for different bioconversion routes / Yasir Iqbal ; Betreuer: Iris Lewandowski." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2017. http://d-nb.info/1140525689/34.

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10

Murphy, Patrick Thomas. "Development of a system for characterizing biomass quality of lignocellulosic feedstocks for biochemical conversion." [Ames, Iowa : Iowa State University], 2009. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3389129.

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11

Eriksson, Anders. "Energy efficient storage of biomass at Vattenfall heat and power plant." Thesis, Institutionen för energi och teknik, SLU, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-153326.

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Storage of biomass is often associated with problems such as heat development, drymatter losses and reduction of fuel quality. The rise in temperature can potentiallycause a risk of self-ignition in the fuel storage. Moreover, emissions from storage pilescan cause health problems in the surrounding. The dry matter losses and reduction offuel quality can have economical effects. The aim of this thesis project is to developguidelines on how to store large amount of biomass at Vattenfalls heat and powerplants in an optimal way. Storage trials at Idbäckens CHP were done in order to studythe effect

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12

Xu, Jingsha. "Assessment of biomass burning impact on the regional air quality of Yangtze River Delta, China." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/51250/.

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Yangtze River Delta (YRD) region experiences severe haze pollution as a result of rapid economy growth and urbanization during recent decades. Its annual average PM2.5 (particulate matter with aerodynamic diameter ≤ 2.5μm) concentration often exceeded the National Ambient Air Quality Standards of China–Grade II (35 μg m-3) and this occurs not only in urban areas but also in suburban and rural areas as well. One of the major contributors to the decreasing air quality in this region is biomass burning. Hence, this research aims to study biomass burning impact on the air quality in YRD through th

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13

Ponte, Patrícia Isabel Pinheiro da. "Effect of pasture biomass intake on growth performance and meat quality of free-range broilers." Doctoral thesis, Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária, 2008. http://hdl.handle.net/10400.5/479.

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Tese de Doutoramento em Ciência e Tecnologia Animal<br>Os efeitos da ingestão de pastagem no desempenho produtivo e na qualidade da carne de frangos em crescimento, bem como o potencial interesse da suplementação das dietas destes animais com celulases e hemicelulases na produção de frangos ao ar livre continuam por avaliar. Os resultados obtidos neste trabalho revelam que a ingestão de pastagem incrementa o desempenho produtivo e contribui para a melhoria dos atributos sensoriais da carne de frango. No entanto, a ingestão de pastagem foi baixa em aves com acesso ad libitum ao alimento compost

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14

Tian, Di. "Evaluation of emission uncertainties and their impacts on air quality modeling applications to biomass burning /." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/26689.

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Thesis (Ph.D)--Civil and Environmental Engineering, Georgia Institute of Technology, 2007.<br>Committee Chair: Dr. Armistead G Russell; Committee Member: Dr. James A. Mulholland; Committee Member: Dr. Michael Chang; Committee Member: Dr. Randall L. Guensler; Committee Member: Dr. Yuhang Wang. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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15

Caldini, Nayara Nunes. "Use of bioflocs biomass wet and dry for feeding of Nile tilapia." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14408.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>This study consisted of two experiments. The first objective was to demonstrate the technical feasibility of separate BFT tank technology in juvenile cultivation of Nile tilapia, for monitoring quality variables of water and productive performance. The fish were fed different combinations of artificial food (balanced diet) and natural food (bioflocs biomass). As the supply of food decreased the tanks increased the biomass supply bioflocs. Bioflocs biomass was produced in an external tank 500 L, separately from the cultivation sys

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16

Keene, Thomas Clarkson. "SWITCHGRASS YIELD AND QUALITY WITH MULTIPLE FERTILIZER APPLICATIONS AND HARVEST DATES." UKnowledge, 2014. http://uknowledge.uky.edu/pss_etds/42.

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Switchgrass (Panicum virgatum L.) is an important native warm-season grass for biomass and forage production in the U.S. This research determined the effect of fertilizer type (conventional, manure, and biosolids) and rate on switchgrass biomass yield and forage quality. Fertilizers were added at 0, 33, 67, 100, and 134 kg N ha-1 on established stands of ‘Kanlow’ switchgrass in three northeastern Kentucky counties. Soils across sites ranged from recently cleared forestland (low pH, P, and K) to productive cropland (high pH, P and K). Stands were sampled for forage nutritive value in June, simu

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17

Reddersen, Björn [Verfasser]. "Biomass, quality traits and methane production of extensive grassland: biodiversity effects and sensor approaches / Björn Reddersen." Kassel : Universitätsbibliothek Kassel, 2016. http://d-nb.info/110477335X/34.

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18

Ryan, Andrea L. "Assessment of spatial variability of silage corn quality and biomass using remote sensing and GIS techniques." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30294.

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The Matsqui area of the Lower Fraser Valley exhibits extreme soil heterogeneity, as the alluvial soils in the area have been deposited by the Fraser River as a series of coarse-textured ridges and finer-textured depressional areas. This variability poses some obvious problems with respect to agricultural management. The main aim of this study was to evaluate soil spatial variability in four fields, and to relate this soil variability to corn production and quality. Site conditions, topography, and soil chemical and physical variables were related to corn biomass and nutrient concentrations us

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19

Zhang, Qi. "Investigations on power consumption, pelleting temperature, pellet quality, and sugar yield in pelleting of cellulosic biomass." Diss., Kansas State University, 2013. http://hdl.handle.net/2097/15757.

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Doctor of Philosophy<br>Department of Industrial and Manufacturing Systems Engineering<br>Zhijian Pei<br>Donghai Wang<br>The U.S. economy has been depending on petroleum-based liquid transportation fuels (such as gasoline, diesel, and jet fuels). Currently, about 50% of petroleum used in the U.S. is imported. Petroleum is a finite and non-renewable energy source and its use emits greenhouse gases. Therefore, it is extremely important to develop domestic sustainable alternatives for petroleum-based liquid transportation fuels. Ethanol produced from cellulosic biomass can be such an alternative.

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20

Lazzaro, Xavier T. "Planktivorous fishes, plankton dynamics, and water quality : quantifying the effects of foraging mode and fish biomass /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487688507505189.

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21

Groover, Miles Clark. "A Comparison of Chipper Productivity, Chip Characteristics, and Nutrient Removals from Two Woody Biomass Harvesting Treatments." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/36350.

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Increased costs of fossil fuels, regulatory policies, and investments by federal and state governments have caused increased interest and incentive for the use of wood as a renewable form of energy. As a result, landowners and forest managers are considering chipping whole trees and harvesting residues as a means to meet increased demand of wood chips as a renewable source of energy. However, the profitability, productivity gains, and sustainability of these alternative harvesting methods continue to be an area of research. The objective of this study was to compare two biomass harvesting t

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22

Essiane, Ondo Olivier. "Caractérisation d'une collection de variétés anciennes de blé pour leur réponse à la mycorhization et impact sur la qualité du grain." Thesis, Dijon, 2014. http://www.theses.fr/2014DIJOS071/document.

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Le blé (genre Tritucum aestivum, famille des Poaceae) est une céréale d’intérêtagronomique très important. Certaines variétés très anciennes sont mise de côté pour desvariétés plus récentes souvent sélectionnées pour répondre à une culture intensiveconsommatrice de produits phytosanitaires. L’agriculture biologique, système de productionsupposant une réduction des intrants chimiques de synthèse afin de préserver l’écosystème,peut se définir comme une pratique où l’emploi d’engrais synthétiques, de pesticideschimiques et d’organismes génétiquement modifiés est prohibé.Cette pratique gagne de pl

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23

MANCINI, MANUELA. "Application of infrared spectroscopy technique for the assessment of solid biofuels quality." Doctoral thesis, Università Politecnica delle Marche, 2018. http://hdl.handle.net/11566/253068.

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Consapevole del continuo aumento della richiesta di energia, della problematica dei gas climaalteranti e della necessità di limitare la dipendenza dei combustibili fossili, la politica europea sta promuovendo le fonti di energia rinnovabile. Tra queste i biocombustibili solidi sono sicuramente tra le più promettenti, ma la rapida crescita del loro mercato ha evidenziato il problema della qualità del prodotto, che ha forti ripercussioni sotto l’aspetto tecnico, ambientale ed economico. Inoltre, la variabilità delle caratteristiche del materiale porta alla necessità di controllarne la qual

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24

Markensten, Hampus. "Climate Effects on Phytoplankton Biomass and Functional Groups." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Universitetsbiblioteket [distributör], 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6029.

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25

Un, Ka Man. "Real-time ocean optical fiber sensing of phytoplankton for studies in size distribution, concentration and biomass." HKBU Institutional Repository, 1999. http://repository.hkbu.edu.hk/etd_ra/265.

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26

Ignatowicz, Monika. "Crop and willow biomass quality with regard to its application in power engineering : PhD thesis summary : [synopsis]." Rozprawa doktorska, [s.n.], 2014. http://dlibra.tu.koszalin.pl/Content/1065.

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27

Fivga, Antzela. "Comparison of the effect of pre-treatment and catalysts on liquid quality from fast pyrolysis of biomass." Thesis, Aston University, 2012. http://publications.aston.ac.uk/16524/.

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The overall objective of this work was to compare the effect of pre-treatment and catalysts on the quality of liquid products from fast pyrolysis of biomass. This study investigated the upgrading of bio-oil in terms of its quality as a bio-fuel and/or source of chemicals. Bio-oil used directly as a biofuel for heat or power needs to be improved particularly in terms of temperature sensitivity, oxygen content, chemical instability, solid content, and heating values. Chemicals produced from bio-oil need to be able to meet product specifications for market acceptability. There were two main objec

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Lewis, Christopher G. "Linkages among vegetative substrate quality, biomass production, and decomposition in maintaining Everglades ridge and slough vegetative communities." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0009381.

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29

Slusser, Robert S. "Forage Improvements and Riparian Buffers for Water Quality and Sustainability: A Small Farm Management Plan." Virginia Tech, 2004. http://hdl.handle.net/10919/37059.

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Black Hawk Creek was included in the Iowa Department of Natural Resources (DNR) 303(d) list of impaired waters in 1998 due to non-point sources of fecal coliform bacteria. Water quality degradation in the stream network is also impacted by excess nutrients in surface runoff from cropped fields and pastures, sedimentation erosion of streambanks from the high volume of water flow following storm events, and the pulse of enriched groundwater drained into the streams from the subsurface tile network. Rotational grazing will replace the current continuous grazing management system. Implementatio

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Nilsson, Bengt. "Extraction of logging residues for bioenergy : effects of operational methods on fuel quality and biomass losses in the forest." Doctoral thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-58307.

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Wood products play a key role in the transformation to a more sustainable society based on renewable bio-based resources, together with the positive effects on climate mitigation by replacing fossil fuels. However, to increase the use of forest fuel in practice it is important to understand the effects of handling and storage on its quality and removal of nutrients from the forest. This thesis addresses these effects with special focus on a comparative evaluation of the traditional dried-stacked with “new” and to some extent more controversial fresh-stacked methods for extraction of logging re

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31

Leclercq, Eric. "Management strategies to control sexual maturation in sea-reared Atlantic salmon (Salmo salar L.) : biomass management, light-manipulation and sterility." Thesis, University of Stirling, 2010. http://hdl.handle.net/1893/2656.

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Pre-harvest sexual maturation in farmed Atlantic salmon, Salmo salar, remains a key biological bottleneck compromising biomass and financial output, production predictability, environmental respect, stock welfare and the overall sustainability of the on-growing industry. The management practices currently in place are not optimized and events of high maturation rate are still sporadically observed. From an ecological perspective, the escape of reproductively competent, domesticated Atlantic salmon constitutes a threat to the integrity of wild stocks. The forecasted expansion of the Scottish sa

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32

Wolters, Bethany Rose. "To Mix or Not to Mix: Performance and Management of Diverse Cover Crop Mixtures." Diss., Virginia Tech, 2020. http://hdl.handle.net/10919/96592.

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Cover crops (CC) are planted in between cash crops to improve soil quality and to supply nitrogen (N) to cash crops through biological N fixation or soil N scavenging. Most producers use single species CC, in part because potential benefits of using mixtures of three or more CC species are poorly understood. A three-year study was initiated at Painter, Virginia to observe effects of CC mixtures on a no-till (NT) corn (Zea mays), wheat (Triticum aestivum L.), and soybean (Glycine max) rotation to measure CC performance, N cycling, cash crop yield, and soil quality in a sandy, low organic matter

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33

Podder, Swarup. "Screening for Forage Sorghum Genotypes with Chilling Tolerance." Thesis, North Dakota State University, 2019. https://hdl.handle.net/10365/31689.

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Forage sorghum (FS) [Sorghum bicolor (L.) Moench] is a warm-season biomass crop with the potential to become a bioenergy feedstock. The objective of this study was to screen potential FS genotypes for increased chilling tolerance and biomass productivity. The experiments were conducted in Fargo and Hickson, ND, in 2017 and 2018. Seventy-two genotypes of FS were tested at 24, 12, and 10℃. The genotypes were ranked from high to low vigor index and 12 genotypes were planted on two seeding dates: early (10 May) and late (27 May). Field emergence index values were greater for the late-seeding compa

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34

Yan, Bo. "Characterization and source apportionment of ambient PM2.5 in Atlanta, Georgia: on-road emission, biomass burning and SOA impact." Diss., Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/37151.

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Characterization and Source Apportionment of Ambient PM2.5 in Atlanta, Georgia: On-Road Emission, Biomass Burning and SOA Impact Bo Yan 260 Pages Directed by Drs. Armistead G. Russell and Mei Zheng Various airborne PM2.5 samples were collected in the metropolitan Atlanta and surrounding areas, which are directly impacted or dominated by on-road mobile and other typical urban emissions, regional transport sources, prescribed burning plumes, wildfire plumes, as well as secondary sources with anthropogenic and biogenic nature in origin. Detailed PM2.5 chemical speciation was conducted inclu

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Porter, William Christian. "Air-quality and Climatic Consequences of Bioenergy Crop Cultivation." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1042.

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Bioenergy is expected to play an increasingly significant role in the global energy budget. In addition to the use of liquid energy forms such as ethanol and biodiesel, electricity generation using processed energy crops as a partial or full coal alternative is expected to increase, requiring large-scale conversions of land for the cultivation of bioenergy feedstocks such as cane, grasses, or short rotation coppice. With land-use change identified as a major contributor to changes in the emission of biogenic volatile organic compounds (BVOCs), many of which are known contributors to the pollut

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Taylor, Jonathan William. "Single-particle characterisation of black carbon in urban and biomass burning plumes and impacts on optical properties." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/singleparticle-characterisation-of-black-carbon-in-urban-and-biomass-burning-plumes-and-impacts-on-optical-properties(052eca1a-e907-40a1-8683-695145b97d3d).html.

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Black carbon (BC) is the light-absorbing component of soot, a combustion-generated aerosol that warms the climate by absorbing solar radiation. Its impacts on climate depend on its microphysical properties, which are modified by atmospheric processes including condensation, coagulation and wet removal. State of the art climate models consider soot in a concentric core/shell configuration, with a BC core coated by nonrefractory material such as organics or sulphate. Within this model, thicker coatings enhance visible light absorption, but also wet removal efficiency, and these have opposing eff

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Vicente, Giovana Cristina Maschio Pelagio. "Atributos microbiológicos, físicos e químicos de solos na região oeste paulista." Universidade do Oeste Paulista, 2010. http://bdtd.unoeste.br:8080/tede/handle/tede/379.

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Made available in DSpace on 2016-01-26T18:56:22Z (GMT). No. of bitstreams: 1 Giovana_Posdefesa 01_10_corrigido.pdf: 983760 bytes, checksum: 074cf78bd206957da41bcdea59101dc5 (MD5) Previous issue date: 2010-09-03<br>The fertility and microbial activity in soil have been often used to indicate changes in soil quality. The microbial activity directly interacts with environmental conditions, soil types and different agricultural production systems used. Despite advances in this area, it is still a great challenge to define good indicators of soil quality, their interactions and behavior over time

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Iribagiza, Chantal. "Human-Centered Design of an Air Quality Feedback System to Promote Healthy Cooking." PDXScholar, 2018. https://pdxscholar.library.pdx.edu/open_access_etds/4547.

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Household air pollution (HAP) is responsible for almost 4 million premature deaths every year, a burden that is primarily carried by women and children in developing countries. The mortality and morbidity impact of HAP can be significantly alleviated through clean cookstove interventions. However, for these interventions to be effective, the new intervention stove must be a substantially cleaner technology and adoption should be high and sustained over time. Woody biomass is the fuel of choice in many developing communities, and contributes substantially to HAP. Several organizations have laun

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Franco, Adolfo José de Sá Chichorro. "Desenvolvimento do método hidro-acústico como ferramenta de gestão piscicola e da qualidade ecológica em albufeiras: aplicação à Albufeira do Maranhão." Master's thesis, ISA/UTL, 2012. http://hdl.handle.net/10400.5/5280.

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Mestrado em Gestão e Conservação de Recursos Naturais - Instituto Superior de Agronomia / Universidade de Évora<br>Fisheries acoustics is a methodology of quantitative assessment of the fish populations, which, besides being efficient is simultaneously fast and non-intrusive, enabling access to information on the fish density, biomass and size distribution. This method, except for an essay from the 80’s (Brabrand et al. 1986, 1989), has never been used in Portuguese reservoirs. The objective of this work was the development of fisheries acoustics as a tool for fisheries management and ecologi

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40

Kamota, Agathar. "Effect of BT maize on earthworm activity, silage quality and residue decomposition in the central Eastern Cape." Thesis, University of Fort Hare, 2011. http://hdl.handle.net/10353/413.

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There are concerns that genetic modification of maize with Bacillus thuringiensis may influence its structural and chemical composition which, together with the Cry1Ab proteins, may affect agro-ecosystem processes and feed quality. This study was aimed at investigating the expression of Cry1Ab protein in leaves, stems and roots of Bt maize and the effect of genetic modification (MON810) on activity of earthworms, silage quality and decomposition of residues in the field. In 2009/10 four maize cultivars; DKC61-25B, DKC61-24, PAN6Q-321B and PAN6777 were planted. Expression of Cry1Ab in leaves, s

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Grant, Kerstin [Verfasser], and Anke [Akademischer Betreuer] Jentsch. "Sensitivity of mesic temperate grassland to increased climate variability : biomass production, forage quality and plant-plant interactions / Kerstin Grant. Betreuer: Anke Jentsch." Bayreuth : Universität Bayreuth, 2016. http://d-nb.info/1108404804/34.

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42

Safari, Hanieh [Verfasser]. "Combined use of spectral signatures and ultrasonic sward height for the assessment of biomass and quality parameters in heterogeneous pastures / Hanieh Safari." Kassel : Universitätsbibliothek Kassel, 2017. http://d-nb.info/1154973824/34.

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43

Parsland, Charlotte. "Study of the activity of catalysts for the production of high quality biomass gasification gas : with emphasis on Ni-substituted Ba-hexaaluminates." Licentiate thesis, Linnéuniversitetet, Institutionen för byggd miljö och energiteknik (BET), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-55702.

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The fossil hydrocarbons are not inexhaustible, and their use is not without impact in our need of energy, fuels and hydrocarbons as building blocks for organic materials. The quest for renewable, environmentally more friendly technologies are in need and woody biomass is a promising candidate, well provided in the boreal parts of the world. To convert the constituents of wood into valuable gaseous products, suitable for the end use required, we need a reliable gasification technology. But to become an industrial application on full scale there are still a few issues to take into account since

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44

Cybulski, Walter J. "Assessing the consequences of ozone depletion on ecosystem function effects of ultraviolet-B radiation on plant biomass, tissue quality and litter decomposition /." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1661.

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Thesis (Ph. D.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains ix, 193 p. : ill. Vita. Includes abstract. Includes bibliographical references.

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Daniel, James B. II. "Using Winter Annual Cover Crops in a Virginia No-till Cotton Production System." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/35681.

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Cotton (<i>Gossypium hirsutum</i> L.) is a low residue crop, that may not provide sufficient surface residue to reduce erosion and protect the soil. A winter annual cover crop could alleviate erosion between cotton crops. Field experiments were conducted to evaluate selected winter annual cover crops for biomass production, ground cover, and N assimilation. The cover crop treatments were monitored under no-till and conventional tillage systems for the effects on soil moisture, cotton yield and quality. Six cover crop treatments, crimson clover (<i>Trifolium incarnatum</i> L.), hairy vetch

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Borges, Clovis Daniel [UNESP]. "Alterações microbianas do solo sob sistema de semeadura direta e rotação de culturas." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/94944.

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Made available in DSpace on 2014-06-11T19:27:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-02-24Bitstream added on 2014-06-13T20:56:23Z : No. of bitstreams: 1 borges_cd_me_jabo.pdf: 505108 bytes, checksum: 33787dd8b93a99178ecd21571bb71189 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>A rotação de culturas é um processo de cultivo que pode modernizar e aumentar o rendimento da atividade agropecuária de forma sustentável agregando maior qualidade ao solo. Os objetivos deste estudo foram: (I) avaliar o efeito dos sistemas culturais em plantio direto condu

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Wiston, Modise. "Regional modelling of air quality and aerosol-interactions over southern Africa : impact of aerosols and regional-scale meteorology." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/regional-modelling-of-air-quality-and-aerosolinteractions-over-southern-africa-impact-of-aerosols-and-regionalscale-meteorology(50819acb-590e-4e18-8552-038ec1f2ab78).html.

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Atmospheric trace components play a critical role in the earth–atmosphere system through their interaction and perturbation to global atmospheric chemistry. They perturb the climate through scattering and absorbing of solar radiation (direct effects), thereby impacting on the heat energy balance of the atmosphere, and alter cloud microphysical properties affecting cloud formation, cloud lifetime and precipitation formation (indirect effects). These trace components can also have adverse effects on human health, visibility and air quality (AQ) composition, including various feedback processes o

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Tolson, Joshua Allen. "THE EFFECT OF INTEGRATED WEED MANAGEMENT STRATEGIES ON WEED POPULATIONS AND BIOMASS, PASTURE PRODUCTIVITY, ECONOMIC RETURNS, AND FORAGE QUALITY WITH AND WITHOUT GRAZING." UKnowledge, 2012. http://uknowledge.uky.edu/pss_etds/4.

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Field studies examined the strategies of mowing, herbicide, fertility, and all combinations on tall ironweed populations, weed biomass, pasture yield, grazing, economics, and forage quality at three Kentucky locations. Mowing was performed in July 2008 and 2009, herbicide applied in August 2008, and fertilizer applied in September 2008 and 2009 at all locations. Weed populations were measured in 2008, 2009, and 2010, and forage and weed biomass collected in May or June of 2009 and 2010. Herbicide treatments reduced weed biomass at all locations, and reduced tall ironweed stems by 64% or greate

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Mohammed, Kassem Ahmed Said. "Effect of nutrient limitation on physiological and morphological plant traits related to growth and quality of tomato." Doctoral thesis, Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät, 2013. http://dx.doi.org/10.18452/16785.

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Ziel dieser Arbeit war es, das Verständnis über Reaktionen von Tomaten auf limitiertes Nährstoffangebot zu verbessern. In der Kontrollbehandlung (100% Biomassewachstum) wurden Pflanzen ohne Nährstofflimitierung kultiviert. Bei den Mangelvarianten wurde entweder K, Mg oder N kontinuierlich in Raten angeboten, die das Wachstum auf etwa 80% (leichter Mangel) oder 60% (starker Mangel) der Kontrolle reduzierten. Dieser Versuchsansatz ermöglichte es, pflanzliche Reaktionen auf eine gut definierte Intensität von Mangel an K, Mg und N zu vergleichen. Nährstofflimitierung veränderte die Biomasse- und

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Yang, Ying. "Effects of Temperature, Light Intensity and Quality, Carbon Dioxide, and Culture Medium Nutrients on Growth and Lipid Production of Ettlia oleoabundans." Digital WPI, 2014. https://digitalcommons.wpi.edu/etd-dissertations/42.

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Ettlia oleoabundans, a freshwater green microalga, was grown under different environmental conditions to study its growth, lipid yield and quality for a better understanding of the fundamental physiology of this oleaginous species. E. oleoabundans showed steady increase in biomass under low temperature and low light intensity, and at high temperature lipid cell content significantly increased independent of nitrate depletion. Studies on light quality showed that red light treatment did not change the biomass concentration, but stimulated lipid yield especially oleic acid, the most desirable bi

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