Дисертації з теми "AGRICULTURAL DATABASE"
Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: AGRICULTURAL DATABASE.
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-49 дисертацій для дослідження на тему "AGRICULTURAL DATABASE".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
1
Wilson, Amanda Janice. "Database Marketing Management Strategies for Agricultural Lenders." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/36734.
Повний текст джерелаАнотація:
This study examines the use of databases to improve marketing techniques and
customer segmentation in lending institutions. Specifically, this study examines the use
of products and services by agricultural customers, and then determines the relationship
between the use of those products and services with farm business characteristics.
Information is also obtained on the interest rate sensitivity of the producers and correlated
with farm business characteristics. The importance of technology and strategic alliances
and other influences in the decision making process are determined after survey analysis.
The survey was sent to producers who had some type of loan. Respondents from
this study used an average of 3.2 loan products and 7.6 services for a total of 10.8 loans
and services. Only 1 percent of the respondents indicated that they did not have a
personal checking account. Twelve percent of the respondents indicated that they did not
use a credit card. Only 16 percent of the respondents indicated that they used leasing
services. Investment products did not have a high percentage of use. Thirty-three percent
indicated they were using certificates of deposit, while only 21 percent indicated the use
of money market funds, and 30 percent indicated the use of mutual funds. Thirty-seven
percent indicated they were using IRAs. However, most of the respondents were using
some form of insurance. Three-fourths of the respondents were using life insurance,
while only 21 percent indicated that they did not possess disability insurance. Other
services were also analyzed in this study. Only 15 percent of the respondents indicated
that they were utilizing estate planning services, despite the 67 percent of respondents
who were greater than age 41 and the 58 percent of respondents with greater than
$500,000 in assets. Seventeen percent of the respondents were using an appraisal service.
Due to the lower levels of usage for the investment products, this study focused
on the relationship between farm characteristics and the investment products. This study
showed that a relationship existed between farm and non-farm income with IRA usage. iii
Only farm income had a relationship with money market fund usage and mutual fund
usage. While, the use of estate plans was related to asset level.
The analysis on interest rate sensitivity was determined by the amount an interest
rate would have to decrease for a producer to switch lending institutions. The producers
who were found to be less interest rate sensitive were those who had lower farm and non-farm
incomes, lower asset levels, lower education levels, higher debt-to-asset ratio, and
those who owned a computer. This implies that these are the more loyal customers to an
institution or perhaps these producers have fewer opportunities to switch institutions.
Producers in this study indicated that when selecting a lender/service provider, a
competitive interest rate (76 percent of respondents) and the institution being a
dependable source of credit (75 percent) was important. Knowledge of agriculture was
also very important (69 percent of respondents). Internet banking and educational
seminars rated as the characteristics that were least important, 3 percent and 9 percent,
respectively. However, in the decision making process, lenders (69 percent of
respondents), accountants (53 percent), and veterinarians (38 percent) were shown to be
very important. The spouse/partner has considerable influence also on decision making.
Sixty-seven percent of the respondents indicated that the spouse/partner had a
considerable influence on investment decision, while sixty-one percent of the respondents
indicated that the spouse/partner had a considerable influence on credit decisions.
Five specific recommendations were made to the institutions following this study.
These recommendations include: use of technology, institutional use of databases, use of
influencers, and targeting and segmenting the marketplace.Master of Science
2
Francis, A. T., Razak C. Abdul, and Humayoon Kabir. "Role of library and information professionals as teachers and trainers in agricultural education: An experience of the Kerala Agricultural University, India." School of Communication & Information, Nanyang Technological University, 2006. http://hdl.handle.net/10150/105167.
Повний текст джерелаАнотація:
Poster paperThe latest developments in Information and Communication Technologies (ICT) have made the concept "Libraries without walls" into a practical reality. This has posed several challenges to the information work force and the information users. At the same time, we have noticed the issues related to the information overload and information quality. At this juncture, efforts are strengthening to develop means to persuade and equip the users and information specialists to achieve maximum efficiency in information services. It was observed that one of the important reasons for the under utilization of electronic information is the lack of requisite level of working knowledge and consumption skills among customers and information intermediaries (Sridhar, 1997). To improve the situation, the conventional user education programmes need be redefined and reengineered, to be it more technology oriented. It should be designed in such a way to provide confidence to the user in locating desired information (Francis, 2005).
3
Bookman, Jedidiah A. "Describing Agricultural Injury in Ohio Using the Ohio Bureau of Workers’ Compensation Database." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1354676420.
Повний текст джерела
4
McNulty, Wendy. "The creation of a GIS database and the determination of sludge's spectral signature in an agricultural setting." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=bgsu1120596906.
Повний текст джерела
5
McNulty, Wendy Lynn. "THE CREATION OF A GIS DATABASE AND THE DETERMINATION OF SLUDGE'S SPECTRAL SIGNATURE IN AN AGRICULTURAL SETTING." Bowling Green State University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1120596906.
Повний текст джерела
6
Haslauer, Claus P. "Hydrogeologic Analysis of a Complex Aquifer System and Impacts of Changes in Agricultural Practices on Nitrate Concentrations in a Municipal Well Field: Woodstock, Ontario." Thesis, University of Waterloo, 2005. http://hdl.handle.net/10012/1223.
Повний текст джерелаАнотація:
The Thornton Well Field, located in an area of dominantly (~80%) agricultural land-use, produces ~50% of the drinking water for the city of Woodstock. Since the mid 1990?s nitrate concentrations in some of the supply wells are above the Maximum Allowable Concentration (MAC) of 10mg-N/L. The source of the nitrate is believed to be from agricultural fertilizing practices. As response to this problem, the County of Oxford purchased 111 hectares of farmland within the capture zone of the Thornton Well Field. This land is rented back to farmers with restrictions placed on the amount of nitrate fertilizer that can be applied in an attempt to sustainably reduce the nitrate concentrations in the ThorntonWell Field below MAC. The objective of this thesis is to improve the site conceptual hydrogeologic model, both at a spatial scale suitable for numerical analysis through regional groundwater flow modelling (representative distance ~9km) and at a smaller scale (representative distance ~2km) for nitrate transport modelling in the vicinity of the Thornton Well Field and the purchased land. Field investigations aimed to support the site hydrogeologic model involved drilling, geologic logging, and instrumentation of a 72m deep borehole completed to bedrock in the center of the nitrate plume, at the border of the farmland under consideration. The shallow subsurface features encountered during this initial drilling operation were tracked below the farm fields with geophysical tools and additional drilling and core logging throughout the field site. Transient hydraulic head observations in combination with on-site precipitation measurements were used to indicate where a hydraulic connection between ground surface and deeper layers exists, which allow rapid infiltration to occur into a glaciofluvial outwash channel which was identified as one important pathway for nitrate transport to the Thornton Well Field. One receptor at the end of that pathway, the screen of the supply Well 01, was depth-discrete profiled for water inflow and nitrate concentrations to obtain better characteristics of the receptor.
A method was developed to estimate the nitrate mass stored in the unsaturated zone below Parcel B, permitting an estimation of the time frame required for flushing the nitrate out of this zone, and the anticipated effects on nitrate concentrations in the supply wells. The spatial distribution of nitrate concentrations in the unsaturated zone and in the aquifer units was analyzed. It was found that the nitrate concentration within the unsaturated zone below Parcel B is ~16mg-N/L, resulting in a total nitrogen mass of ~20t within that zone. It was shown that significant reductions (~10%) in nitrate concentrations in the supply wells of the Thornton Well Field can be achieved, assuming zero nitrate mass influx into the domain from Parcel B.
A comprehensive data base was developed to organize, manage, and analyze all site measured data for that purpose, and regional hydrogeologic data from the MOE Water Well Record Database. The contents of this database in conjunction with the MOE Water Well Record Database were used to construct a three-dimensional digital representation of the hydrostratigraphic units at a regional and at a local scale. This three-dimensional hydrostratigraphic unit spatial distribution along with surface watershed information and potentiometric surfaces of the various aquifer units will be used to define a suitable spatial domain and associated boundary conditions for future modelling efforts. This hydrostratigraphic model will serve as basis for predicting the effects of agricultural land-use changes within the capture zone of the Thornton Well Field (Parcel B) on the nitrate concentrations in the supply wells of the Thornton Well Field.
7
Schreiber, Werner. "GIS and EUREPGAP : applying GIS to increase effective farm management in accordance GAP requirements." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53440.
Повний текст джерелаАнотація:
Thesis (MSc)--Stellenbosch University, 2003.ENGLISH ABSTRACT: With the inception of precision farming techniques during the last decade, agricultural efficiency has improved, leading to greater productivity and enhanced economic benefits associated with agriculture. The awareness of health risks associated with food borne diseases has also increased. Systems such as Hazard Analysis and Critical Control Points (RACCP) in the USA and Good Agricultural Practices (GAP) in Europe are trying to ensure that no food showing signs of microbial contamination associated with production techniques are allowed onto the export market. Growers participating in exporting are thus being forced to conform to the requirements set by international customers. The aim of this study was to compile a computerized record keeping system that would aid farmers with the implementation of GAP on farms, by making use of GIS capabilities. A database, consisting of GAP-specific data was developed. ArcView GIS was used to implement the database, while customized analyses procedures through the use of Avenue assisted in GAP-specific farming related decisions. An agricultural area focusing on the export market was needed for this study, and the nut producing Levubu district was identified as ideal. By making use of ArcView GIS, distinct relationships between different data sets were portrayed in tabular, graphical, geographical and report format. GAP requirements state that growers must base decisions on timely, relevant information. With information available in the above-mentioned formats, decisions regarding actions taken can be justified. By analysing the complex interaction between datasets, the influences that agronomical inputs have on production were portrayed, moving beyond the standard requirements of GAP. Agricultural activities produce enormous quantities of data, and GIS proved to be an indispensable tool because of the ability to analyse and manipulate data with a spatial component. The implementation of good agricultural practices lends itself to the use of GIS. With the correct information available at the right time, better decisions can promote optimal croppmg, whilst rmmrrnzmg the negative effects on the consumer and environment.
AFRIKAANSE OPSOMMING: Gedurende die afgelope dekade het die gebruik van presisie boerderytegnieke tot verbeterde gewasverbouing gelei, wat verhoogde produktiwiteit en ekonomiese welvarendheid tot gevolg gehad het. 'n Wêreldwye bewustheid ten opsigte van die oordrag van siektekieme geasosieer met varsprodukte het ontstaan. Met die implementering van Hazard Analysis and Critical Control Points (HACCP) en Good Agricultural Practices (GAP), poog die VSA en Europa om voedsel wat tekens van besmetting toon van die invoermark te weerhou. Buitelandse produsente en uitvoerders word dus hierdeur gedwing om by internasionale voedselstandaarde aan te pas. Hierdie navorsing het ten doel gehad om 'n gerekenariseerde rekordhouding stelsel daar te stel wat produsente sal bystaan tydens die implementering van GAP, deur gebruik te maak van GIS. 'n Databasis gerig op die implementering van GAP is ontwerp. ArcView GIS is gebruik word om die databasis te implementeer, waarna spesifieke navrae die data ontleed het om sodoende die besluitnemingsproses te vergemaklik. 'n Landbou-area wat aktief in die uitvoermark deelneem was benodig vir dié studie, en die Levubu distrik was ideaal. Verwantskappe tussen datastelle is bepaal en uitgebeeld in tabel-, grafiek- en verslag vorm. Die suksesvolle implementering van GAP vereis dat alle besluite op relevante inligting gebaseer word, en met inligting beskikbaar in die bogenoemde formaat kan alle besluite geregverdig word. Deur die komplekse interaksie tussen insette en produksie te analiseer, was dit moontlik om verwantskappe uit te beeld wat verder strek as wat GAP vereistes stipuleer. Deur die gebruikerskoppelvlak in ArcView te verpersoonlik is die gebruiker nie belaai met onnodige berekeninge nie. Aktiwiteite soos landbou produseer groot datastelle, en die vermoë van GIS om die ruimtelike verwantskappe te analiseer en uit te beeld, het getoon dat GIS 'n instrumentele rol in die besluitnemingsproses speel. Deur middel van beter besluitneming kan optimale gewasverbouing verseker word, terwyl die negatiewe impak op die verbruiker en omgewing tot 'n minimum beperk word.
8
Baca, Angel Filiberto Mansilla. "Análise da dinâmica espaço-temporal de culturas agrícolas no Brasil: uma abordagem metodológica." Universidade do Estado do Rio de Janeiro, 2011. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=4479.
Повний текст джерелаАнотація:
Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorAtualmente, o Brasil se apresenta como um grande produtor agrícola mundial com finalidade alimentícia e bioenergética. Ano a ano recordes de produção são batidos pelo setor agropecuário. Por outro lado, tem-se uma perspectiva de problemas alimentícios e energéticos no mundo, em especial no continente africano onde muitos vivem na miséria e na fome. Neste contexto, esta dissertação de mestrado apresenta uma proposta para a análise da dinâmica espaço-temporal de culturas agrícolas empregando os conceitos e instrumentos da Geomática em busca do desenvolvimento sustentável. Desenvolveu-se uma metodologia para a geração de indicadores da produção agrícola em diferentes níveis da estrutura territorial brasileira que permite a apresentação sintética, por meio de cartogramas e animações digitais, das dinâmicas espacial e espaço-temporal das principais culturas. Para isto foi criada uma base de dados da produção das principais culturas, desenvolvidos indicadores que representem a dinâmica espacial da produção agrícola e desenvolvidas ferramentas de apresentação destes indicadores através da dinâmica espaço-temporal. Finalmente, foram relacionadas as áreas voltadas à produção de alimentos e de expansão agrícola para a bioenergia (etanol e óleo de palma). Pretende-se, através deste trabalho, contribuir na tomada de decisão com ferramentas de visualização da realidade agropecuária brasileira. O trabalho estabelece ligações com os zoneamentos agroecológicos, os instrumentos de segurança alimentar e a pegada ecológica, com a apresentação da produção agrícola das culturas como cana-de-açúcar, milho, soja, palma de óleo e algodão.
At present, Brazil presents itself as a major agricultural producer for food and bio-energy purposes in the entire world. Year-to-year, production records are hit by the agricultural sector. On the other hand, there is a perspective for severe problems in food and energy supply in the world, especially in Africa, where many people live in poverty and hunger. In this context, this masters dissertation presents a proposal for the analysis of the spatio-temporal dynamics of the agricultural production using the concepts and tools of Geomatics in pursuit of sustainable development. It was developed a methodology for the generation of agricultural production indicators at different levels of Brazilian territorial structure which allows the synthetic presentation, through cartograms and digital animations, of the spatial and spatio-temporal dynamics of the main crops. For this, a database of the production of main crops was created, indicators that represent the spatial dynamics of agricultural production and presentation tools for these indicators through the space-temporal dynamics were developed. Finally, the areas with focus in the food production and agricultural expansion for bio-energy (ethanol and palm oil) production were related. It is intended, through this work, to contribute to the decision making with visualization tools of the reality of Brazilian agriculture. Links were developed with agro-ecological zoning, with the instruments of food security and with the ecological footprint, with the presentation of the agricultural production of crops such as sugar cane, corn, soybeans, palm oil and cotton.
9
Chriki, Sghaïer. "Méta-analyses des caractéristiques musculaires afin de prédire la tendreté de la viande bovine." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2013. http://tel.archives-ouvertes.fr/tel-00881204.
Повний текст джерелаАнотація:
Un des enjeux de la filière bovine est la maîtrise et la prédiction de la tendreté de la viande, critère important pour les consommateurs. Inscrite dans le programme européen ProSafeBeef, ma thèse avait pour objectif de mieux prédire la tendreté par méta-analyse à partir des caractéristiques biochimiques du muscle. Pour cela, mon travail de thèse s'est appuyé sur la base de données BIF-Beef regroupant des données individuelles issues de plusieurs programmes de recherche, allant de l'animal à la viande en passant par la carcasse et le muscle. Une première méta-analyse a montré que le muscle Semitendinosus (ST) est de type plus rapide glycolytique que le Longissimus thoracis (LT) chez les mâles entiers et les femelles mais pas chez les mâles castrés. Après avoir identifié par une approche par classe de tendreté les caractéristiques musculaires associées à la tendreté, nous avons montré que ces caractéristiques sont différentes entre muscles et types d'animaux. Dans le muscle LT des taurillons, la surface moyenne des fibres musculaires est la variable qui joue le principal rôle sur la tendreté sensorielle où elle explique 2% de la variabilité des notes de tendreté. Principalement dans le muscle ST, les teneurs en collagène total et insoluble et l'activité enzymatique du métabolisme glycolytique expliquent au plus 6% chacun de la variabilité de la force de cisaillement. Malgré ces faibles parts de variabilité expliquée de la tendreté, ces conclusions validées sur un grand volume de données sont importantes pour préparer de nouveaux projets visant à compléter cette démarche en prenant en compte d'autres caractéristiques telles que des biomarqueurs génomiques.
10
Tůma, Milan. "Identifikace a hodnocení preferencí zákazníků u vybraného produktu." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2019. http://www.nusl.cz/ntk/nusl-401995.
Повний текст джерелаАнотація:
Finding customer preferences when deciding about buying a tractor in the 201-300 horsepower category. Attributes will be gained through questionnaire survey, and will be used in the QFD method, where there will also be comparison of major competitors in a given market segment. The evaluation of tractors will also include the voice of the customer, gained from KANO model. KANO model will be second survey that will be used in this thesis. The conclusion is to build an ideal tractor structure that matches the customer's wishes.
11
Swantek, Pamela Jane 1972. "Development of a database to analyze historical fire activity in southern Arizona: A prototype from Saguaro National Park." Thesis, The University of Arizona, 1997. http://hdl.handle.net/10150/278630.
Повний текст джерелаАнотація:
With Anglo settlement of southern Arizona in the late 1800s, fire regimes were altered dramatically. Currently, desert scrub has experienced a dramatic rise in frequency and size of wildfire which may remove fire-intolerant perennials that define the community structure. On the contrary, woodlands and forests now contain excessive fuel build up and require prescribed burning to restore the system's balance. These opposing attitudes reflect the conundrum of how to manage naturally occurring fires, or where and when to initiate prescribed burning to recreate each vegetation community's "natural" fire regime. To resolve this dilemma, there is need to discern natural fire histories by collecting specific baseline data such as where, when and how the landscape has burned. This research has been focused on the design and development of a relational database, and the incorporation of a geographic information system to develop a system that can be used to fulfill this need.
12
Самодай, Валентина Петрівна, та Valentyna Petrivna Samodai. "Оценка и прогнозирование природно-ресурсного потенциала региона". Thesis, Сумской государственный университет, 2010. http://repository.sspu.sumy.ua/handle/123456789/534.
Повний текст джерелаАнотація:
В диссертации был проведен анализ и классификация фундаментальных теоретических положений оценки природно-ресурсного потенциала, которые исследованы и разработаны в работах многих отечественных и зарубежных авторов. Результаты исследований, которые приводятся в работах отечественных экономистов, носят в основном теоретический характер, который затрудняет их практическое использование с целью применения и регулирования на национальном и региональном уровнях. Оценивая вклад ученых в разработку вопросов природно-ресурсного потенциала, следует отметить, что преимущественно эта проблема изучалась без надлежащей оценки динамики рентообразующих факторов во времени. Недостаточно разработаны в теории вопросы оценки природно-ресурсного потенциала региона в рыночных условиях хозяйствования. Была обоснована объективная необходимость дальнейшего усовершенствования организационно-экономического механизма использования потенциала земель сельскохозяй-ственного назначения.
Анализировались методы оценки природно-ресурсного потенциала и его составляющих. Применение рентной концепции для осуществления оценки основных элементов природно-ресурсного потенциала, по нашему мнению, в наибольшей степени приемлемо в условиях рыночной экономики, поскольку данный подход учитывает экономическую доступность природного ресурса, дифференциальную ренту и рыночную его цену. Проведены исследования факторов образования дифференциальной ренты на протяжении 16-летнего периода в Сумском регионе по отдельно взятым сельскохозяйственным культурам, районированным на данной территории. Выявлены тенденции изменения величины дифференциальной ренты в зависимости от динамики изменения рентообразующих факторов по отдельным культурам, районированным на территории области. Осуществлен анализ величины дифференциальной ренты, получаемой при возделывании ряда культур, и определена приоритетность тех или иных факторов влияющих на дифференциальную ренту.
При оценке земель сельскохозяйственного назначения определена база оценки, ее цель, обоснованы методы оценки и факторы, которые влияют на величину стоимости земли. Определение денежной оценки земель необходимо при проведении операций купли продажи земли.
Усовершенствована методика распределения трансфертов для приобретения минеральных удобрений производителями сельскохозяйственной продукции, которая в отличие от существующих, базируется на дифференциации компенсационных выплат в зависимости от величины природно-ресурсного потенциала конкретного региона и стоимостной оценки земель сельскохозяйственного назначения. Предложенный механизм дотирования сельскохозяйственных производителей на приобретение минеральных удобрений является важной предпосылкой экологического, социального, экономического развития, лежат в основе формирования ценовой и налоговой политики государства и должен стать одним из рычагов экономического механизма распределения компенсаций на приобретение минеральных удобрений сельскохозяйственными производителями.
Получил дальнейшее развитие научно-методический подход к определению предельных значений стоимостной оценки земель сельскохозяйственного назначения на основе учета динамического характера влияния рентообразующих факторов на величину дифференциальной ренты, как основы определения экономически обоснованной цены земельных участков.
Структурно-логическую характеристика природно-ресурсного потенциала региона дала возможность раскрыть существенные взаимосвязи и взаимодействие составляющих элементов природно-ресурсного потенциала. Такой подход в отличие от других пониманий природно-ресурсного потенциала позволяет рассмотреть его как комплексную многоуровневую систему в которой существуют тесные взаимозависимости и формируется иерархическая соподчиненность хозяйственных функций ее элементов.
Предложенные и обоснованные в работе методические подходы и практические рекомендации были использованы при составлении программы социально-экономического развития Сумской области Главным управлением экономики Сумской областной государственной администрации, установлении и распределении объемов резервного фонда для приобретения сельскохозяйственными производителями минеральных удобрений на ОАО "Сумыхимпром". Результаты диссертационного исследования использованы при преподавании дисциплин «Управление природоохранной деятельностью» и «Экономическое прогнозирование» в Сумском государственном университете.The main analyses and classification of fundamental theoretical studies of natural and recourse potential valuation, that had been studied and worked out in many national and foreign authors’ researches, was done in the dissertation. The results of the researches given in the national economists’ works are mainly theoretical, and it makes them difficult practically use with the purpose of utilization and regulation on the national and regional levels. Investigating the scientists’ contribution to the problems of natural and resource potential it is necessary to notice that this problem was mostly studied without effective quantitative influence of agriculture in the region. On the base of differential rent the valuation of lands for agricultural purpose was grounded, the instrumentals for analytics, which includes regularity of land value dependence from rents founding factors, was worked out, the methods of distribution transfers for getting mineral fertilizers by producers of agricultural products was worked out. Differential rent is a complicated system of organizational and economical relationships. Its study is not an end in itself, it has not only an educational character, but is an important factor in regulation of economical relationships in the society for preserving natural and resource potential of the territory. Key words: natural and resource potential, dynamics of factors, natural resources, a database of valuation, rental conception, modeling of dynamics, transfers, valuation of agricultural lands usage, dynamics of differential rent, methods of valuation, productivity of land, a norm of profit, price of realization.
13
Cicero, Simone. "Modelli statistici per il calcolo dello stock di carbonio nei suoli: applicazione al database della Regione Emilia Romagna." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.
Знайти повний текст джерелаАнотація:
Lo scopo principale della tesi è stato quello di verificare se l’Agricoltura Conservativa è in grado di aumentare nel tempo le quantità di Carbonio Organico del Suolo (SOC) in modo più efficiente rispetto alle comuni pratiche di Agricoltura Convenzionale. Utilizzando i dati del progetto Europeo LifeHelpSoil, sono state effettuate delle simulazioni predittive delle dinamiche del carbonio in diversi tipi di suoli presenti nelle 4 aziende di progetto tramite RothC un modello molto utilizzato in ambito scientifico a livello internazionale. La prima parte del lavoro ha riguardato il reperimento di tutti i dati di input per il modello ovvero: A) dati climatici storici e proiezioni future di valori medi mensili relativi ai siti aziendali provenienti da ARPAE e JRC; B) dati relativi al tipo di suolo (% Argilla e Stock di Carbonio Organico); C) dati riguardanti gli ordinamenti colturali e le pratiche agricole nelle tre annualità del progetto Life (2014-2016): tipo di coltura; irrigazione; lavorazioni del terreno; cover-crops; concimazioni; inoltre a partire dai quantitativi in peso del prodotto raccolto sono stati calcolati prima i diversi residui colturali e poi i relativi apporti in termini di carbonio organico al suolo. La seconda parte si è sviluppata con le simulazioni utilizzando diversi archi temporali. Il modello richiede una prima fase di parametrizzazione utilizzando dati climatici del passato e dati di input di materiale organico tali da portare la simulazione all’equilibrio ossia ottenere valori di SOC simulati pari al valore di carbonio misurato in campo; segue poi la fase di simulazione futura utilizzando gli schemi di gestione agronomica del suolo adottati nel progetto Life e i dati climatici di climate change. I risultati ottenuti hanno confermato l’ipotesi che l’Agricoltura Conservativa aumenti il contenuto di Carbonio organico nel terreno (quindi di Sostanza Organica) il quale è un parametro importante in quanto principale indicatore di qualità del suolo.
14
Mendonça, Bruno Soares Pacheco. "Contributo para um sistema de informação agrícola. Caso de estudo da vinha e do trigo no Alentejo." Master's thesis, ISA, 2013. http://hdl.handle.net/10400.5/6333.
Повний текст джерелаАнотація:
Mestrado em Engenharia Agronómica - Instituto Superior de AgronomiaIn Portugal information about the costs of agricultural enterprises is scarce, complicating the decision-making process of the farm manager who needs this information to manage the farm in a context of constant change in policies, agri-environmental measures and regulations of agricultural products. This dissertation proposes an information system based on enterprise accounts, able to report costs and income from agricultural activities. Thus a database named ACC was developed, together with an interface named GITEAgro to facilitate the construction of enterprise accounts and use their data to calculate useful indicators, plus an operation schedule to ascertain the occurrence of costs over time. For this purpose overheads and variable costs per unit, revenues and gross margins were calculated in two examples of activities: rainfed milling wheat and vineyards for quality wine, representing, respectively, an annual and a perennial crop. The result was facilitating the creation of enterprise accounts and improving the display of the information through interactive graphs. Inserted in an information system this information could simplify farmers' control over their activities, while generating data for the publication of the indicators
15
Erickson, Heidi S. "Characterization of Taura syndrome virus (TSV) isolates from Penaeid shrimp: Pathology, virulence, structural protein analysis and genetic diversity, and, Development of the aquaculture pathology diagnostic laboratory database." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/280124.
Повний текст джерелаАнотація:
In the research reported here, the pathology, virulence, and strain differences of Taura syndrome virus (TSV) was studied. Initial studies on TSV pathogenesis compared the survival of juveniles of a highly Taura syndrome (TS) susceptible line of Penaeus vannamei, a line of TS resistant P. vannamei, and an innately TS resistant P. stylirostris line following TSV challenge by feeding (per os) or injection methods, in the absence of horizontal transmission via cannibalism and/or absorption from the water. Per os_TSV challenge resulted in I00% survival in P. stylirostris, but challenge by per os exposure produced significant mortality commencing on about the same post-exposure day in both SPF and SPR P. vannamei (P < 0.001), suggesting that P. stylirostris is significantly (P < 0.001) more resistant toper os TSV infection and presentation of TS disease than either SPF or SPR P. vannamei. The potential roles of the cuticular lining of the stomach and hindgut and unlined portions of the gut in TSV resistance in penaeid shrimp are discussed as factors where an innate resistance mechanism was postulated to explain the observed differences between the different species and populations of shrimp in TSV susceptibility. To investigate apparent TSV strain differences, three geographic and year isolates of TSV from naturally occurring TS epizootics of cultured penaeid shrimp were obtained from Mexico (SIN98TSV and MX99TSV from P. vannamei and SON2KTSV from P. stylirostris) and one TSV isolate from Belize, Central America (BLZ02TSV from P. vannamei) were analyzed and compared to the reference TSV isolate (HI94TSV) by selected TSV diagnostic and genetic analysis methods. The results show that screening of penaeid shrimp broodstock and postlarvae by MAb I Al testing will not detect all TSV isolates, possibly leading to false negative results, further spread of TSV and re-emergence of TS in regions where it has been eradicated. The putative VP1 antigenic epitope recognized by TSV MAb 1A1 is identified, with SIN98TSV and BLZ02TSV having 70.0% and 80.0% AA homology, respectively, within the 10 AA region. There are three distinct electropherotypes and 'serotypes' of TSV, with electropherotype A (TSV Etype-A) and serotype A (TSV-A) representing those TSV isolates conforming to VP1 properties of the Hawaiian 1994 TSV isolate, electropherotype B (TSV Etype-B) and serotype B (TSV-B) representing those TSV isolates conforming to the VP1 properties of the Sinaloan 1998 TSV isolate, and electropherotype C (TSV Etype-C) and TSV serotype C (TSV-C), representing those TSV isolates conforming to the VP1 properties of the Belize 2002 TSV isolate. In a parallel activity, the University of Arizona (UAZ) Aquaculture Pathology Diagnostic Laboratory (APL) Case Database (DB) and the UAZ Aquaculture Pathology Diagnostic Laboratory Client Address Book Database (AB), relational databases, were created using FileMaker Pro software, are used to keep an up to date and accurate record of all UAZAPL diagnostic and research case and client information and may be searched and sorted to find case data and/or client information of interest.
16
Niane, Mamadou 1961. "ARCVIEW tutorial and database development based on a Senegalese local community cartographic model: Ross-Bethio rural community." Thesis, The University of Arizona, 1997. http://hdl.handle.net/10150/278624.
Повний текст джерелаАнотація:
Through this work a database and an ARCVIEW tutorial based on a Senegalese local community cartographic model is developed. The Ross-Bethio rural community model was selected as an example of solving methodological problems in natural resources management at the scale of a rural local community. The tutorial developed will also support Geographic Information Systems Instruction for natural resources management in Senegal using a local known database model. The process of solving the problems identified are based mostly on natural resources management concerns of the local community council and will help users to learn and understand the use of ARCVIEW GIS for spatial analysis. A solution is provided that will help the instructors to evaluate their results with these in this study. However, the tutorial is not a self-taught one for ARCVIEW GIS, but an instructional supervised one.
17
Tesařová, Zdeňka. "Návrh kritérií a tvorba metodiky pro stanovení výše nájmů z pozemků v zemědělských areálech v konkrétních lokalitách." Doctoral thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-364201.
Повний текст джерелаАнотація:
In the doctoral thesis deals with a problem situation, which is based on the lack of a clarified methodology for determining the rents from land in agricultural grounds. Criteria are proposed that could affect the amount of land rents in agricultural grounds. One is the type of water source. The created database consists of a variety of data that are subsequently evaluated. The data for the selected locations was statistically evaluated. Furthermore, the percentage of rentals was determined as against the usual (market) price of the leased land. The proposed coefficients were quantified and verified at the same time in practical cases. The output of the thesis is a methodology developed to determine the usual rental rates from land in agricultural grounds.
18
Hrubanová, Michaela. "Hodnocení specifických faktorů při oceňování zemědělských pozemků v podmínkách ČR." Doctoral thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-364607.
Повний текст джерелаАнотація:
This dissertation is focused on the identification and evaluation of specific factors affecting the price of agricultural land. It should be mentioned that the market for agricultural land, especially arable land and permanent grasslands, is not fully developed in the Czech Republic and this area is not fully explored. The thesis describes the factors on the basis of which the investor decides when buying these plots. The data needed for this work have been obtained from professional literature, real estate servers, two polls, actual sales, etc. In the conclusion of this thesis all findings are summarized and evaluated. It includes the development of prices in the years 2014 – 2016 based on sales actually realized in the Olomouc Region, Moravian – Silesian Region, South Moravian Region and Vysočina Region. The outcome of the thesis is a proposal of an expert standard. It is necessary to realize that, above all, agricultural land is a specific commodity, as it is unreproducible, indivisible and its offer is limited.
19
Petroski, Luiz Pedro. "Uma arquitetura para integração de ambientes data warehouse, espacial e agricultura de precisão." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2017. http://tede2.uepg.br/jspui/handle/prefix/143.
Повний текст джерелаАнотація:
Made available in DSpace on 2017-07-21T14:19:30Z (GMT). No. of bitstreams: 1
Luiz Pedro Petroski.pdf: 3583708 bytes, checksum: cb0543041adedd80936d37a0c95d78ba (MD5)
Previous issue date: 2017-03-06Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
The aim of this work is to present a proposal of integration between Precision Agriculture, DataWarehouse / OLAP and GIS. The integration should use extensible and open components, agricultural modeling for decision support, geographical data support, communication interface between components, extension of existing GIS and Data Warehouse solutions. As a result of the integration, an open and extensible architecture was defined, with a spatial agricultural data warehouse modeling. In this way the technologies and tools are open and allow the implementation and extension of its functionalities to adapt to the agricultural scenario of decision. In order to perform the integration, the data were obtained from a farm in the city of Piraí do Sul/PR, which uses proprietary software for data management. Data was exported to the SHAPEFILE format, and through the process performed by the ETL tool, was extracted, transformed and loaded into the analytical database. Also as a source of political boundaries data of rural regions of Brazil, data from the IBGE were used. The database was modeled and implemented by PostgreSQL DBMS with the extension PostiGIS to support spatial data. To provide the OLAP query service, was used the Geomondrian server. The application was extended from the Geonode project, where it was implemented Analytic functionalities, and the interface between the application and the OLAP was performed by the Mandoline API and the OLAP4J library. And finally the interface was implemented through javascript libraries for creating charts, tables and maps. As principal result, an architecture was obtained for Data Warehouse integration, OLAP operations, agricultural and spatial data, as well as ETL process definition and the user interface.
O objetivo desta dissertação é apresentar uma proposta de integração entre agricultura de precisão, Data Warehouse/OLAP e SIG. A integração deve utilizar componentes abertos e extensíveis, modelagem agrícola para suporte a decisão, suporte a dados geográficos, interface de comunicação entre os componentes e a extensão de soluções existentes de SIG e Data Warehouse. Como resultado da integração foi definido uma arquitetura aberta e extensível, integrada, com uma modelagem de Data Warehouse agrícola espacial, que permite o suporte a tomada de decisão para o planejamento e gestão do manejo das práticas da agricultura de precisão. Desta forma as tecnologias e ferramentas utilizadas são abertas e permitem a implementação e extensão de suas funcionalidades para adequar ao cenário agrícola de tomada de decisão. Para realizar a integração foi utilizado os dados oriundos de uma fazenda localizada em Piraí do Sul/PR, a qual utiliza um software proprietário para o gerenciamento de dados. Os dados foram exportados para o formato SHAPEFILE, e através do processo realizado pela ferramenta de ETL, foram extraídos, transformados e carregados para a base de dados analítica. Também como fonte de dados sobre as fronteiras políticas das regiões rurais do Brasil, foi utilizado dados do IBGE. A base de dados analítica foi modelada e implementada em um SGBD PostgreSQL com a extensão PostiGIS para suportar os dados geográficos. Para prover o serviço de consultas OLAP, foi utilizado o servidor Geomondrian. A aplicação foi estendida do projeto Geonode, onde foi implementado as funcionalidades analíticas, e a interface entre a aplicação e o servidor OLAP, foi realizada pela API Mandoline e a biblioteca OLAP4J. E por fim a interface foi implementada por meio de bibliotecas javascript para a criação de gráficos, tabelas e mapas. Como principal resultado, obteve-se uma arquitetura para integração de datawarehouse, operações OLAP, dados espaciais e agricultura, bem como definição do processo de ETL e a interface com o usuário.
20
Fumagalli, Junior Edson Machado. "SISTEMA DE RASTREAMENTO DE SEMENTES SEMENTES GEORASTER." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/9580.
Повний текст джерелаАнотація:
The increasing advance of technological artifacts and new manners of monitoring have become possible to know the origins of the seeds. Using applied technologies and Internet it is possible to store and access data in geographic databases which allow viewing and keeping up with all the accomplished work in the prior years in conjunction with the precision agriculture data and handlings associated to the seeds origin.Web programming tools and databases permit the integration with the data of precise agriculture, resulting in an origin history and production of seeds previously recorded.The application of geotechnologies and the spatial data of sowing places makes possible to verify the existence of agricultural activities in determined area and, at the same time, to use the information stored in the database generated by precise agriculture software of various suppliers. The results of this research can help the initiatives to elaborate projects and full monitoring of agricultural production and seed certification.Com o crescente avanço de artefatos tecnológicos, novas maneiras de acompanhamento e conhecimento das origens das sementes através de tecnologias aplicadas e disponibilidade na rede mundial de computadores, é possivel armazenar e consultar dados em banco de dados geograficos podendo visualizar e acompanhar todo o trabalho realizado nos anos anteriores juntamente com os dados da agricultura de precisão e aplicações, manejos associados a origem das sementes. A utilização de ferramentas de programação web e banco de dados o qual possibilita uma integração com os resultados da aplicação de técnicas de agricultura de precisão possibilita um histórico da origem e produção de sementes anteriormente registradas. A aplicação das geotecnologias e o registro espacializado dos locais de plantio permite verificar a existência de atividades agronomicas em determinado território, podendo utilizar as informações armazenadas no banco de dados atraves de softwares de agricultura de precisão de diversos fornecedores. Os resultados obtidos pela pesquisa poderão auxiliar às iniciativas para elaboração de projetos e acompanhamento de produção agrícola e certificação de sementes.
21
Russell, Thembi M. "The spatial analysis of radiocarbon databases the spread of the first farmers in Europe and of the fat-tailed sheep in Southern Africa /." Oxford : Archaeopress, 2004. http://books.google.com/books?id=Vi9mAAAAMAAJ.
Повний текст джерела
22
Domingues, Eloisa [UNESP]. "Sistema de Informação Geográfica e a contaminação por agrotóxicos no meio ambiente da cana-de-açúcar na bacia hidrográfica do Rio Pardo - SP/MG." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/104447.
Повний текст джерелаАнотація:
Made available in DSpace on 2014-06-11T19:33:21Z (GMT). No. of bitstreams: 0
Previous issue date: 2010-05-04Bitstream added on 2014-06-13T19:44:05Z : No. of bitstreams: 1
domingues_e_dr_rcla.pdf: 3318861 bytes, checksum: 4fb1e8d32700d735da2485108750737a (MD5)Estudos sobre a poluição difusa, motivados pela preocupação com o uso sistemático de agrotóxicos na agricultura são pouco conhecidos, muito localizados ou específicos e basicamente avaliam o comportamento dessas substâncias tóxicas ou suas concentrações nos solos. A proposta apresentada é desenvolver um modelo de consulta em banco de dados para analisar e avaliar aspectos do potencial para contaminação por agrotóxicos dos meios solo/água e do risco ao ambiente, tomando como referência a lavoura da cana-de-açúcar na bacia do Rio Pardo. Considera-se que para tal seja necessária a realização de estudos mais abrangentes e com mais variáveis, analisadas de forma integrada e sistêmica. As derivações conseqüentes das interações que se operam no âmbito do sistema solo/água podem ser melhor compreendidas utilizando-se ferramental apropriado, um banco de dados. Finalmente a estruturação de uma base de dados apoiará o desenvolvimento dos indicadores do potencial para contaminação dos meios solo/água. Uma base conceitual e uma série de procedimentos operacionais dão conta das tarefas necessárias para a construção do banco. Partiu-se da interpretação em imagens de satélite, passando pelas análises estatísticas, das características do meio físico que interagem com as substâncias tóxicas até a organização das consultas que apóiam a definição de indicadores do potencial para contaminação por agrotóxicos
Studies on diffused pollution generated from sistematic using of pesticides on agriculture are not very common, much located or specific or, basically, evaluate the behavior of such toxic substances of their concentration in soils. The present proposition intends to develop a consulting pattern on a database to analyze and evaluate environment potential contamination of soil and water, and risking aspects, taking as reference sugar cane culture on Pardo river basin. It is understood that the achievement of such objectives demands much more including studies with more variables, which must be analyzed under an integrated and sistematic way. The outcoming interactions performed within the scope of such system could be better comprehended with an appropriate tool – a database. Finally the creation of a database will support the development of potential contamination indicators. A conceptual basis as well as a set of operational procedures both give account of the task that will be demanded to a database, starting with satellite image interpretation, going through analysis of statistical data, environment characteristics that interacts with toxic substances, even the organization of queries that give support to definition of potential contamination indicators
23
Domingues, Eloisa. "Sistema de Informação Geográfica e a contaminação por agrotóxicos no meio ambiente da cana-de-açúcar na bacia hidrográfica do Rio Pardo - SP/MG /." Rio Claro : [s.n.], 2010. http://hdl.handle.net/11449/104447.
Повний текст джерелаАнотація:
Orientador: Nádia Regina do NascimentoBanca: Claudio Antonio de Mauro
Banca: Maria Isabel C. de Freitas
Banca: Dalton Morrison Valeriano
Banca: Teresa Cardoso da Silva
Incluiu os anexos: Mapa de uso da terra da Bacia do rio Pardo - Mapa de solos da Bacia do rio Pardo
Resumo: Estudos sobre a poluição difusa, motivados pela preocupação com o uso sistemático de agrotóxicos na agricultura são pouco conhecidos, muito localizados ou específicos e basicamente avaliam o comportamento dessas substâncias tóxicas ou suas concentrações nos solos. A proposta apresentada é desenvolver um modelo de consulta em banco de dados para analisar e avaliar aspectos do potencial para contaminação por agrotóxicos dos meios solo/água e do risco ao ambiente, tomando como referência a lavoura da cana-de-açúcar na bacia do Rio Pardo. Considera-se que para tal seja necessária a realização de estudos mais abrangentes e com mais variáveis, analisadas de forma integrada e sistêmica. As derivações conseqüentes das interações que se operam no âmbito do sistema solo/água podem ser melhor compreendidas utilizando-se ferramental apropriado, um banco de dados. Finalmente a estruturação de uma base de dados apoiará o desenvolvimento dos indicadores do potencial para contaminação dos meios solo/água. Uma base conceitual e uma série de procedimentos operacionais dão conta das tarefas necessárias para a construção do banco. Partiu-se da interpretação em imagens de satélite, passando pelas análises estatísticas, das características do meio físico que interagem com as substâncias tóxicas até a organização das consultas que apóiam a definição de indicadores do potencial para contaminação por agrotóxicos
Abstract: Studies on diffused pollution generated from sistematic using of pesticides on agriculture are not very common, much located or specific or, basically, evaluate the behavior of such toxic substances of their concentration in soils. The present proposition intends to develop a consulting pattern on a database to analyze and evaluate environment potential contamination of soil and water, and risking aspects, taking as reference sugar cane culture on Pardo river basin. It is understood that the achievement of such objectives demands much more including studies with more variables, which must be analyzed under an integrated and sistematic way. The outcoming interactions performed within the scope of such system could be better comprehended with an appropriate tool - a database. Finally the creation of a database will support the development of potential contamination indicators. A conceptual basis as well as a set of operational procedures both give account of the task that will be demanded to a database, starting with satellite image interpretation, going through analysis of statistical data, environment characteristics that interacts with toxic substances, even the organization of queries that give support to definition of potential contamination indicators
Doutor
24
Campbell, Brittany Doreen. "Carbon budgets and greenhouse gas emissions associated with two long-term tillage and crop rotation sites in Ohio." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1354559256.
Повний текст джерела
25
Kab, Sofiane. "Relation entre les caractéristiques agricoles et deux maladies neurodégénératives,la maladie de Parkinson et la sclérose latérale amyotrophique." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS089/document.
Повний текст джерелаАнотація:
Le rôle de l'exposition professionnelle aux pesticides dans la maladie de Parkinson (MP) est documenté, mais aucune étude n’a évalué l’excès de risque de MP parmi la population agricole française. De plus, peu d’études ont porté sur l’exposition non-professionnelle. A partir des bases de données du système national d’information inter-régimes de l’assurance maladie (SNNIRAM), nous avons identifié l’ensemble des cas incidents de MP en France métropolitaine (2010-2012). Nous avons comparé l’incidence et la prévalence de la MP parmi les affiliés à la Mutualité sociale agricole à celles des affiliés des autres régimes de l’assurance maladie et observé une augmentation de fréquence de MP parmi les affiliés à la MSA, notamment les exploitants agricoles. Parmi la population française métropolitaine, l’incidence de la MP augmentait avec la proportion de terres consacrées à l’agriculture dans les cantons. L’association la plus forte a été observée pour les cantons fortement viticoles. Cette association a été confirmée chez les non-agriculteurs affiliés au Régime général de l’assurance maladie. L’association avec la viticulture pourrait s’expliquer par une utilisation importante de pesticides responsable d’une exposition environnementale à proximité des exploitations. Si cette association est confirmée, la fraction de MP attribuable aux pesticides serait plus importante que si seule l’exposition professionnelle était impliquée.La sclérose latérale amyotrophique ou maladie du motoneurone (MMN) est une maladie rare de pronostic sombre et il existe peu de données sur son incidence en France. Nous avons développé un algorithme permettant d’identifier les cas de MMN à partir du SNIIRAM qui a permis d’estimer l’incidence de cette pathologie en France (2012-2014) et d’étudier sa relation avec les caractéristiques agricoles. A l’inverse de la MP, nous n’avons pas observé d’augmentation d’incidence au sein de la MSA et nous n’avons pas retrouvé d’association avec les caractéristiques agricolesThe role of occupational exposure to pesticides in Parkinson's disease (PD) is recognized, but no studies have evaluated the excess risk of PD among the French agricultural population. In addition, few studies have examined non-occupational exposure. We used databases from the national health insurance information system (SNNIRAM) to identify incident PD cases in metropolitan France (2010-2012). We compared the incidence and prevalence of PD among affiliates of the Mutualité agricole agricole with those among affiliates of the other health insurance schemes and observed an increased frequency of PD among MSA affiliates, farmers in particular. In the French general population, the incidence of PD increased with the proportion of land devoted to agriculture in the cantons. occupational exposure was involved. The strongest association was observed for cantons with a high proportion of land devoted to vineyards. This association was confirmed in non-farmers affiliated to the General health insurance scheme. The association with vineyards may be explained by an important use of pesticides leading to environmental exposure near farms. If this association is confirmed, the fraction of PD attributable to pesticides would be greater than if only occupational exposure was involved.Amyotrophic lateral sclerosis or motor neuron disease (MMD) is a rare disease with a poor prognosis and there are few data on its incidence in France. We have developed an algorithm to identify cases of MMD in the SNIIRAM which allowed us to estimate the incidence of this disease in France (2012-2014) and to study its relationship with the agricultural characteristics. Unlike PD, we did not observe any increase of incidence among MSA members and we did not find any association with agricultural characteristics
26
Vagh, Yunous. "Mining climate data for shire level wheat yield predictions in Western Australia." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2013. https://ro.ecu.edu.au/theses/695.
Повний текст джерелаАнотація:
Climate change and the reduction of available agricultural land are two of the most important factors that affect global food production especially in terms of wheat stores. An ever increasing world population places a huge demand on these resources. Consequently, there is a dire need to optimise food production.
Estimations of crop yield for the South West agricultural region of Western Australia have usually been based on statistical analyses by the Department of Agriculture and Food in Western Australia. Their estimations involve a system of crop planting recommendations and yield prediction tools based on crop variety trials. However, many crop failures arise from adherence to these crop recommendations by farmers that were contrary to the reported estimations. Consequently, the Department has sought to investigate new avenues for analyses that improve their estimations and recommendations.
This thesis explores a new approach in the way analyses are carried out. This is done through the introduction of new methods of analyses such as data mining and online analytical processing in the strategy. Additionally, this research attempts to provide a better understanding of the effects of both gradual variation parameters such as soil type, and continuous variation parameters such as rainfall and temperature, on the wheat yields.
The ultimate aim of the research is to enhance the prediction efficiency of wheat yields. The task was formidable due to the complex and dichotomous mixture of gradual and continuous variability data that required successive information transformations. It necessitated the progressive moulding of the data into useful information, practical knowledge and effective industry practices. Ultimately, this new direction is to improve the crop predictions and to thereby reduce crop failures.
The research journey involved data exploration, grappling with the complexity of Geographic Information System (GIS), discovering and learning data compatible software tools, and forging an effective processing method through an iterative cycle of action research experimentation. A series of trials was conducted to determine the combined effects of rainfall and temperature variations on wheat crop yields. These experiments specifically related to the South Western Agricultural region of Western Australia. The study focused on wheat producing shires within the study area. The investigations involved a combination of macro and micro analyses techniques for visual data mining and data mining classification techniques, respectively.
The research activities revealed that wheat yield was most dependent upon rainfall and temperature. In addition, it showed that rainfall cyclically affected the temperature and soil type due to the moisture retention of crop growing locations. Results from the regression analyses, showed that the statistical prediction of wheat yields from historical data, may be enhanced by data mining techniques including classification.
The main contribution to knowledge as a consequence of this research was the provision of an alternate and supplementary method of wheat crop prediction within the study area. Another contribution was the division of the study area into a GIS surface grid of 100 hectare cells upon which the interpolated data was projected. Furthermore, the proposed framework within this thesis offers other researchers, with similarly structured complex data, the benefits of a general processing pathway to enable them to navigate their own investigations through variegated analytical exploration spaces. In addition, it offers insights and suggestions for future directions in other contextual research explorations.
27
Maugard, Charlotte. "Analyse des données massives de source assurantielle de la Mutualité Sociale Agricole, pour la surveillance en santé au travail des travailleurs agricoles en France." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAS035.
Повний текст джерелаАнотація:
Introduction : La surveillance sanitaire et la vigilance (identification de nouveaux risques en particulier) représentent un enjeu majeur dans le champ santé-travail. En complément des études épidémiologiques classiques, l’analyse systématique, sans a priori, de données collectées en routine pourrait être un atout pour la détection précoce de pathologies en lien avec le travail. Dans ce contexte, la Mutualité Sociale Agricole (MSA), le régime de protection sociale dédié aux travailleurs agricoles français, a souhaité développer son activité de vigilance en exploitant ses données médico-administratives, utilisées pour le remboursement de prestations de santé. En partenariat avec l’Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail (Anses), un projet de fouille des données a donc été mis en place dans lequel ce travail de thèse s’inscrit. L’objectif de la thèse consiste plus précisément à tester, sans hypothèses préalables, l'existence ou non d'associations entre les activités agricoles et les pathologies reconnues en tant qu’affection de longue durée (ALD).Méthode : Les travaux présentés ont été menés sur la population de non-salariés (chefs d’exploitation ou d’entreprise) affiliés à la MSA, en disposant d’une part de données de cotisations, renseignant au niveau individuel, les activités professionnelles, caractéristiques démographiques et socio-économiques, et d’autre part, de données médico-administratives renseignant les déclarations de pathologies reconnues en ALD et informations associées dont la pathologie codée en CIM-10. Grâce à l’accord de la CNIL, un identifiant unique a été créé pour que, pour la première fois, ces données administratives et médico-administratives puissent être fusionnées et restructurées afin de permettre l’application de modèles. Des modèles de régression logistique ont été utilisés, en adaptant la sélection de variables pour chaque ALD et en utilisant la validation croisée afin de limiter le surajustement des modèles. Plusieurs méthodes ont été testées pour mieux prendre en compte les facteurs de confusion potentiels. Ces différents modèles ont ensuite été évalués via des mesures de robustesse et appliqués aux données à deux niveaux de précision pour la pathologie (ALD et CIM-10). Les associations statistiques entre chaque combinaison d’activité professionnelle et de pathologie ont été caractérisées par leur p-valeur, corrigées pour les tests multiples, et la valeur de l’odds ratio correspondant.Résultats : Le traitement des données a permis d’étudier une population constituée de 899 212 non-salariés affiliés entre 2006 et 2016. Au sein de cette population, il a été possible d’identifier 100 706 individus avec au moins une déclaration d’ALD sur la période d’observation. La méthodologie appliquée a mis en évidence 54 associations statistiquement significatives entre une activité professionnelle et une ALD, permettant à la fois de capturer des déterminants de santé déjà connus ou suspectés mais aussi de générer des hypothèses intéressantes. Après ajustement sur des facteurs de confusion, les secteurs agricoles les plus associés à des pathologies, faisant l’objet d’ALD chez les non-salariés, sont la viticulture, l’exploitation de bois, le paysagisme, et les entreprises de jardins ou de reboisement.Discussion : Ce travail de thèse apporte une première démonstration de la faisabilité et de la pertinence de l’analyse systématique des données collectées en routine à des fins assurantielles, sur l’ensemble de la population agricole, pour rechercher des risques sanitaires associés aux diverses activités professionnelles. Les « signaux » ainsi mis en évidence seront investigués à l’aide d’un groupe d’experts. D’autres modèles pourront être testés, au premier rang desquels les modèles de survie. Cette approche pourra ainsi constituer un outil précieux contribuant au dispositif de vigilance sanitaire des risques professionnels agricolesIntroduction: Health surveillance and vigilance (identification of new risks in particular) represent a major challenge in the field of occupational health. In addition to classical epidemiological studies, the systematic analysis, without a priori, of data collected routinely could be an asset for the early detection of diseases related to work. In this context, the social protection scheme dedicated to French agricultural workers, known as “Mutualité Sociale Agricole” (MSA), wanted to develop its vigilance activity by exploiting its medico-administrative data, used for the reimbursement of health expenditures. In partnership with the French Agency for Food, Environmental and Occupational Health & Safety (ANSES), a data mining project has been set up in which this thesis work fits. The aim of the thesis is, more precisely, to test, without any prior assumptions, the existence of associations between agricultural activities and pathologies recognized as long-term disease (LTD).Method: The work presented was conducted on self-employed population (heads of farms or enterprises) affiliated to the MSA. It relied on the one hand on a contributors’ database which includes, at the individual level, information about occupational activities, demographic and socio-economic characteristics, and on the other hand, on a medico-administrative database with declarations of long-term diseases (LTD) and associated information like ICD-10 diseases. Thanks to the agreement of the French Data Protection Authority (CNIL), a unique identifier was created so that, for the first time, these administrative and medico-administrative data could be merged and restructured to allow the application of models. Logistic regression models were performed, adapting variable selection for each LTD and using cross-validation to limit over-fitting of models. Several methods have been tested to better take into account potential confounders. These different models were evaluated via robustness measures and applied at two-level of precision for pathology (LTD and ICD-10). The statistical associations between each combination of occupational activity and LTD were characterized by p-values, corrected for multiple tests, and odds ratio.Results: Data management allowed us to consider a population of 899 212 self-employed affiliated between 2006 and 2016. Among them, it was possible to identify 100 706 individuals with at least one declaration of LTD over the observation period. The applied methodology revealed 54 statistically significant associations between an occupational activity and an LTD, making it possible to capture already known or suspected health determinants but also to generate interesting hypotheses. After adjusting for confounding factors, the agricultural sectors most associated with LTD, among the self-employed, are viticulture, timber exploitations, landscaping and gardening or reforestation.Discussion: This thesis provides a first demonstration of the feasibility and relevance of the systematic analysis of data collected routinely for insurance purposes, concerning the overall agricultural population, to search for health risks associated with occupational activities. The statistical "signals" thus highlighted will then be investigated by a group of experts from different scientific and occupational fields. Other models should be tested like survival models. This approach may thus be a valuable tool contributing to the health surveillance system dedicated to agricultural workers
28
Sinnott, Tyler King. "Eelgrass (Zostera marina) Population Decline in Morro Bay, CA: A Meta-analysis of Herbicide Application in San Luis Obispo County and Morro Bay Watershed." DigitalCommons@CalPoly, 2020. https://digitalcommons.calpoly.edu/theses/2236.
Повний текст джерелаАнотація:
The endemic eelgrass (Zostera marina) community of Morro Bay Estuary, located on the central coast of California, has experienced an estimated decline of 95% in occupied area (reduction of 344 acres to 20 acres) from 2008 to 2017 for reasons that are not yet definitively clear. One possible driver of degradation that has yet to be investigated is the role of herbicides from agricultural fields in the watershed that feeds into the estuary. Thus, the primary research goal of this project was to better understand temporal and spatial trends of herbicide use within the context of San Luis Obispo (SLO) County and Morro Bay Watershed by analyzing data of application by mass, area, and intensity to identify herbicides with the highest potential for local environmental pollution. California Pesticide Use Annual Summary Reports (PUASR) from the years 2000 to 2017 were used to obtain data for conducting a meta-analysis to estimate total herbicide application by weight within every township, range, and section for each of the eight selected herbicides: oxyfluorfen, glyphosate, diuron, chlorthal-dimethyl, simazine, napropamide, trifluralin, and oryzalin. A second goal was to select an analytical laboratory that would be best suited for herbicide analysis of estuary sediments to determine the presence, or lack thereof, of the eight selected herbicides. Criteria of consideration in laboratory selection included herbicides detection capabilities, detection/reporting limits, testing prices, chain of custody protocols, turnaround times, and laboratory site locations.
The meta-analysis yielded results showing high herbicide application rates in SLO County with glyphosate, oxyfluorfen, and chlorthal-dimethyl being identified as three herbicides of elevated risk for local environmental contamination due high rates of use by mass, by area, and/or intensity during the study timeframe. Additionally, Morro Bay Watershed exhibited moderate rates of herbicide application with chlorthal-dimethyl and glyphosate being of highest risk for contamination and accumulation within the estuary because of high application rates by mass, by area, and/or intensity. Finally, Environmental Micro Analysis (EMA) and Primus Group, Inc. (PrimusLabs) were identified as the top candidates for analytical laboratory testing of Morro Bay Estuary sediment samples to be obtained and tested for the selected herbicides. These laboratories provide superior analytical capabilities of the eight herbicides, impressive reporting limits or lower detection limits, competitive testing prices for detecting multiple constituents in multiple samples, robust chain of custody protocols, options for quick turnaround times, and laboratory site locations within California.
29
Bouadi, Tassadit. "Analyse multidimensionnelle interactive de résultats de simulation : aide à la décision dans le domaine de l'agroécologie." Phd thesis, Université Rennes 1, 2013. http://tel.archives-ouvertes.fr/tel-00933375.
Повний текст джерелаАнотація:
Dans cette thèse, nous nous sommes intéressés à l'analyse des données de simulation issues du modèle agro-hydrologique TNT. Les objectifs consistaient à élaborer des méthodes d'analyse des résultats de simulation qui replacent l'utilisateur au coeur du processus décisionnel, et qui permettent d'analyser et d'interpréter de gros volumes de données de manière efficace. La démarche développée consiste à utiliser des méthodes d'analyse multidimensionnelle interactive. Tout d'abord, nous avons proposé une méthode d'archivage des résultats de simulation dans une base de données décisionnelle (i.e. entrepôt de données), adaptée au caractère spatio-temporel des données de simulation produites. Ensuite, nous avons suggéré d'analyser ces données de simulations avec des méthodes d'analyse en ligne (OLAP) afin de fournir aux acteurs des informations stratégiques pour améliorer le processus d'aide à la prise de décision. Enfin, nous avons proposé deux méthodes d'extraction de skyline dans le contexte des entrepôts de données afin de permettre aux acteurs de formuler de nouvelles questions en combinant des critères environnementaux contradictoires, et de trouver les solutions compromis associées à leurs attentes, puis d'exploiter les préférences des acteurs pour détecter et faire ressortir les données susceptibles de les intéresser. La première méthode EC2Sky, permet un calcul incrémental et efficace des skyline en présence de préférences utilisateurs dynamiques, et ce malgré de gros volumes de données. La deuxième méthode HSky, étend la recherche des points skyline aux dimensions hiérarchiques. Elle permet aux utilisateurs de naviguer le long des axes des dimensions hiérarchiques (i.e. spécialisation / généralisation) tout en assurant un calcul en ligne des points skyline correspondants. Ces contributions ont été motivées et expérimentées par l'application de gestion des pratiques agricoles pour l'amélioration de la qualité des eaux des bassins versants agricoles, et nous avons proposé un couplage entre le modèle d'entrepôt de données agro-hydrologiques construit et les méthodes d'extraction de skyline proposées.
30
Akgün, Hanefi Yagmur. "Entwicklung von Systemen der mobilen Informationstechnologie zwecks Zugriffs auf Datenbestände aus der Nutztierzucht am Beispiel von Daten aus der Traberzucht." Doctoral thesis, 2005. http://hdl.handle.net/11858/00-1735-0000-0006-AB6A-0.
Повний текст джерела
31
Chiang, Chih-Ming, and 江志民. "The study of value-added process in database: the case of agriculture database." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/16110690030247596863.
Повний текст джерелаАнотація:
博士國立臺灣大學
農藝學研究所
92
According to the limitation and insufficiency of planning for constructing the database system at the beginning, the problem, lack of data (variables), arises when executing data mining. How to add every kind of data (variables) to database?” , therefore, is the important issue to the researchers. It is possible to continue the work of data mining if acquiring another useful and appropriate auxiliary information, such as other database or secondary data from other unit. However, the auxiliary information cannot be used and inserted in database immediately because of their structure. The purposes of this study are to deal with the two kinds of problem. One is “ functional mapping from the other database”, the other is “ value-added data from secondary data”. First we propose a process to try to combine 2 similar databases cannot be merged directly for functional mapping from the other database, named “DISBME”. Second we will discuss that how to deal with the kind of percentage data for value-added data from secondary data. Then the practices of real database will be conducted. The 2 databases are “2000 agriculture and husbandry census” and “2001 agriculture and husbandry sampling survey”. The results show that both are satisfied and don’t cause much bias. We add the useful variables in the main database successfully. It means, through above process, the main database can achieve reliable data from each kind and issue of auxiliary information. It also resolves the problem of insufficiency of data and increases the value of the database.
32
Soyizwapi, Lindiwe. "Use of electronic databases by postgraduate students in the Faculty of Science and Agriculture at the University of KwaZulu-Natal, Pietermaritzburg." Thesis, 2005. http://hdl.handle.net/10413/1930.
Повний текст джерелаАнотація:
The purpose of this study was to investigate the use of electronic databases by postgraduate students in the Faculty of Science and Agriculture at the University of KwaZulu-Natal, Pietermaritzburg, with a view to proposing a set of recommendations based on the findings that would contribute to a more effective use of these databases. The study focussed on the use students made of electronic databases provided by the University of KwaZulu-Natal, Pietermaritzburg Library and any other electronic databases which provided information and were needed for their studies. The study population consisted of 500 registered postgraduate students. The survey instrument used to elicit data was a self-administered questionnaire that was distributed to a sample population of 100 postgraduate students. The questionnaire sought to establish if postgraduate students used electronic databases, which electronic databases postgraduate students used and the reasons for their choice, to identify problems postgraduate students encountered, how students became aware of the databases and how often they used the available databases. A total of 65 postgraduate students responded, a response rate of 65%. The results were analysed in terms of frequency responses and they are graphically displayed in the form of tables and graphs.
The study found that postgraduate students did use the electronic databases, but a few of the databases were not used. A number of problems were experienced when using the databases. Students became aware of the availability of electronic databases from a variety of sources such as friends, library orientation programmes and academic staff. Search engines were identified as a resource that was very popular with almost all the students. There was a need for training on use of the databases and a need for
improving access for all campus and off-campus users. Recommendations for action and further research, based on the conclusions of the study, are made.Thesis (M.I.S.)-University of KwaZulu-Natal, Pietermaritzburg, 2005.
33
Diebel, Matthew Whitney. "Prioritizing stream restoration in agricultural landscapes." 2008. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
34
Contreras-Moreno, Nancy. "Agricultural technology transfer : assessing 60 years of experiences in Mexico /." 2002. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
35
Bennett, Elena Michele. "Patterns of soil phosphorus : concentrations and variability across an urbanizing agricultural landscape /." 2002. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
36
Wood, Eric C. "Modeling and characterizing agricultural expansion : a case study in Senegal, West Africa /." 2002. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
37
Forbes, Katherine Janet. "Movement and population dynamics of two ladybeetle (Coleoptera: Coccinellidae) species in agricultural crops." 2008. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
38
Cardille, Jeffrey A. "Characterizing patterns of agricultural land use in Amazonia by merging satellite imagery and census data." 2002. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
39
Mize, Ronald L. "The invisible workers : articulations of race and class in the life histories of braceros /." 2000. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
40
Kamarainen, Amy Marie. "Long-term trends in aquatic pollutants : chloride and phosphorus dynamics in lakes embedded in urban and agricultural watersheds /." 2009. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
41
Barquero, Francisco. "Identifying successful participation in women's lending groups in Nicaragua's agricultural frontier : the community bank "hand-in-hand" in Waslala, Nicaragua /." 2002. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
42
Peng, Tingjun. "A study of imperfect competition of the Asian dairy markets : the impacts of DOHA round agricultural negotiations and further trade liberalization /." 2006. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
43
Li, Min. "Microarray analysis of soybean treated with Fusarium toxin and development of a soybean gene expression database /." 2007. 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:3290462.
Повний текст джерелаАнотація:
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2007.Source: Dissertation Abstracts International, Volume: 68-11, Section: B, page: 7040. Adviser: Steven J. Clough. Includes supplementary digital materials. Includes bibliographical references (leaves 86-98) Available on microfilm from Pro Quest Information and Learning.
44
Muangprom, Amorntip. "A novel dwarfing mutation in a "Green Revolution" gene in Brassica rapa : its role in the gibberellin pathway and its potential use in agriculture /." 2004. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
45
Renfrew, Rosalind B. "The influence of patch and landscape characteristics on grassland passerine density, nest success, and predators in southwestern Wisconsin pastures." 2002. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
46
Welsh, Margaret O. "Management of mountain forest and pasture resources in Albania : local control and tenure security in a post reform economy /." 2001. http://www.library.wisc.edu/databases/connect/dissertations.html.
Повний текст джерела
47
Qaouqaou, Youssef. "Development of an historical landscape photography database to support landscape change analysis in the Northeast of Portugal." Master's thesis, 2016. http://hdl.handle.net/10198/13132.
Повний текст джерелаАнотація:
Repeat photography is an efficient, effective and useful method to identify trends of changes in the landscapes. It was used to illustrate long-term changes occurring in the landscapes. In the Northeast of Portugal, landscapes changes is currently driven mostly by agriculture abandonment and agriculture and energy policy. However, there is a need to monitoring changes in the region using a multitemporal and multiscale approach.
This project aimed to establish an online repository of oblique digital photography from the region to be used to register the condition of the landscape as recorded in historical and contemporary photography over time as well as to support qualitative and quantitative assessment of change in the landscape using repeat photography techniques and methods. It involved the development of a relational database and a series of web-based services using PHP: Hypertext Preprocessor language, and the development of an interface, with Joomla, of pictures uploading and downloading by users. The repository will make possible to upload, store, search by location, theme, or date, display, and download pictures for Northeastern Portugal. The website service is devoted to help researchers to obtain quickly the photographs needed to apply RP through a developed search engine. It can be accessed at: http://esa.ipb.pt/digitalandscape/.A fotografia histórica é um método útil e eficiente para realizar estudos comparativos e evolutivos das alterações da paisagem e, em geral, da geografia. Tem sido amplamente usado para ilustrar as alterações mais importantes ocorridas cronologicamente nas paisagens. No Nordeste de Portugal, as alterações da paisagem devem-se, sobretudo, ao abandono da exploração agrícola que teve como consequência a florestação de novas áreas, bem como pelas construções para aproveitamento da energia hidráulica ou eólica. Em súmula, é evidente a necessidade de monitorizar as alterações da geografia da região usando uma abordagem multi-temporal e multi-escala. Este trabalho teve por objetivo principal a implementação de um repositório digital para registos fotográficos históricos da paisagem da região de Trás-os-Montes, com o intuito de disponibilizar serviços web que permitem o armazenamento e o acesso aos registos fotográficos históricos e contemporâneos das paisagens da região, permitindo assim uma análise quantitativa e qualitativa da evolução dessas paisagens. Em termos práticos, envolveu a criação de uma base de dados relacional e uma pletora de serviços web usando recursos de programação para a web, nomeadamente PHP e Javascript. Requereu igualmente a criação de um website para a centralização e disponibilização dos serviços, este foi elaborado com base em Joomla. Assim, disponibiliza-se à comunidade académica, e não só, um conjunto de serviços digitais para o estudo, com base em fotografia, das alterações na paisagem em Trás-os-Montes. O website pode ser acedido em http://esa.ipb.pt/digitalandscape/.
48
Espadinha, João Manuel Vitória Fernandes. "Software de gestão de exploração agrícola." Master's thesis, 2015. http://hdl.handle.net/10174/13026.
Повний текст джерелаАнотація:
Neste trabalho estudam-se algumas soluções para a gestão de explorações agrícolas. Apresenta-
se um estado da arte com as principais aplicações em uso não só em Portugal, mas
também internacionalmente, indicando as suas principais características e possíveis lacunas.
Apresenta-se também as principais aplicações desenvolvidas em Portugal. Propõe-se
um modelo de dados e desenvolve-se uma aplicação para gestão de explorações
Utilizou-se um conjunto de dados provenientes de uma exploração real com o modelo proposto.
O conjunto de dados foi alvo de análise usando as técnicas de redes de bayes e árvores de decisão como o objectivo de identificar regras de gestão e auxiliar à tomada de decisão; ABSTRACT:
This work addresses the topic of management software for farms. It presents a state of
the art with the main applications in use not only in Portugal, but also internationally,
indicating its main features and possible gaps. Is also given the main applications developed
in Portugal. We propose a data model and an application developed for use in this
class of applications. A set of data from an actual exploration was used with the proposed
model. The data set was subjected to analysis using the techniques of bayesian networks
and decision trees in order to identify management rules and assist decision making.
49
Kuhl, Eva-Maria. "Distribution of plant functional traits in a range of grassland formations differing in water and nitrogen availability." Master's thesis, 2009. http://hdl.handle.net/11858/00-1735-0000-0006-B049-6.
Повний текст джерела