Submitted by CLEBER JUNIOR JADOSKI null (cjadoski@gmail.com) on 2016-02-18T20:23:16Z No. of bitstreams: 1 Cleber Jr Jadoski.pdf: 2455858 bytes, checksum: 570df2ab1fc3e0b3ad7c70988ab927ad (MD5) / Approved for entry into archive by Ana Paula Grisoto (grisotoana@reitoria.unesp.br) on 2016-02-19T17:53:33Z (GMT) No. of bitstreams: 1 jadoskijunior_c_dr_bot.pdf: 2455858 bytes, checksum: 570df2ab1fc3e0b3ad7c70988ab927ad (MD5) / Made available in DSpace on 2016-02-19T17:53:33Z (GMT). No. of bitstreams: 1 jadoskijunior_c_dr_bot.pdf: 2455858 bytes, checksum: 570df2ab1fc3e0b3ad7c70988ab927ad (MD5) Previous issue date: 2015-12-22 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O sorgo sacarino é uma cultura que vem ganhando destaque na cadeia produtiva da sacarose, contudo, com alto consumo de fertilizantes nitrogenados. No que se refere ao rendimento de sacarose pelo sorgo sacarino pode-se afirmar que alguns fatores ainda devem ser avaliados para aumentar as perspectivas de sucesso, dentre eles o aumento da produtividade e a redução nos custos de produção. Existe interação entre a cultura, elementos biológicos e o manejo, nesse último, a aplicação de mistura de reguladores vem apresentando resultados significativos nos processos metabólicos das plantas, além do aumento da produtividade. Biorreguladores são misturas de reguladores vegetais, que afetam o metabolismo vegetal, cuja ação trará benefícios aos cultivos, melhorando a qualidade e incrementando a produção. A fotossíntese possui relação direta na produtividade das plantas e é um dos processos afetados pelo metabolismo do nitrogênio. A assimilação deste nutriente destaca-se como um dos principais fatores limitantes para produção vegetal. Processos biológicos de fixação de N por organismos procariontes podem tornar os processos produtivos mais eficientes. Neste contexto a bactéria Azospirillum brasilense mostra-se promissora à fornecer nitrogênio e diminuir os custos com fertilizantes nitrogenados. Baseado nos efeitos fisiológicos que os biorreguladores desenvolvem nas plantas, em função do seu modo de ação no metabolismo fotossintético, este trabalho teve por objetivo avaliar as respostas fisiológicas de sorgo sacarino inoculado com Azospirillum brasilense decorrentes da adubação nitrogenada e reguladores vegetais. O experimento constituiu-se de parcelas subdivididas e distribuídas em blocos, ao acaso, com quatro repetições. As subparcelas corresponderam a uma linha na parcela principal, alternadas por uma linha de bordadura. Os tratamentos foram constituídos de níveis de nitrogênio (0, 40, 80, 120 e 160 kg ha-1) nas parcelas principais aos 10 dias após a emergência (DAE) e nas subparcelas níveis do bioestimulante, produto comercial Stimulate® (0, 300, 400, 500 e 600 mL ha-1) aplicado aos 15 DAE, na cultura de sorgo sacarino cultivar BRS 505 da Embrapa, inoculado com Azospirillum brasilense. Avaliou-se as variáveis de trocas gasosas (A, gs, Ci. E) e as variáveis estimadas de EUA, A/Ci e índice SPAD aos 16, 46 e 81 DAE, área foliar aos 70 DAE, massa de matéria seca aos 90 DAE. A colheita foi realizada aos 90 DAE e os colmos foram preparados para a determinação do POL%, AR% e ART kg t-1. A aplicação do biorregulador na dose de 440,7 ml ha-1 apresentou a maior eficiência fotossintética até os 46 DAE. Nas condições experimentais o tratamento com regulador vegetal não apresentou efeito no aumento da produção de açúcar total recuperável. O biorregulador apresentou sinergia com os tratamentos de adubação nitrogenada, ocasionando incremento no desenvolvimento das características fenológicas: área foliar e massa de matéria seca da cultura. Conclui-se que a ação do biorregulador não influenciou na produção de açúcares pela planta, entretanto se mostrou um bom candidato a diminuir os custos na adubação nitrogenada da cultura, por melhorar a eficiência fotossintética tanto em plantas de sorgo sacarino em que o N metabolizado foi oriundo da inoculação com Azospirillum brasilense ou da adubação nitrogenada. / Sweet sorghum is a prominent culture that has gained in the production chain of sucrose, however, with high consumption of nitrogen fertilizers. As regards income sucrose for sweet sorghum can be said that some factors still need to be evaluated to increase the prospects for success, including increased productivity and reduction in production costs. There is interaction between culture, biological elements and management, in the latter, the application of plant growth regulators has shown significant results in the metabolic processes of plants, and increased productivity. Photosynthesis has direct bearing on the productivity of plants and is one of the processes affected by nitrogen metabolism. The assimilation of this nutrient stands out as one of the main limiting factors for crop production. Biological processes N fixation by prokaryotic organisms can make more efficient production processes. In this context the Azospirillum brasilense bacteria is promising to provide nitrogen and reduce the cost of nitrogen fertilizers. Based on the physiological effects that bioregulators develop the plants, depending on their mode of action in the photosynthetic metabolism, this study aimed to evaluate the physiological responses of sorghum inoculated with Azospirillum brasilense resulting from nitrogen and plant growth regulators fertilization. The experiment consisted of split plots and distributed in blocks at random, with four repetitions. The subplots correspond to a line in the main plot, alternating by a line boundary. The treatments consisted of nitrogen levels (0, 40, 80, 120 e 160 kg ha-1), the main plots at 10 days after emergence (DAE) and the subplots levels bioregulator, commercial product Stimulate® (0, 300, 400, 500 e 600 mL ha-1) applied at 15 DAE, the sorghum crop BRS 505 Embrapa inoculated with Azospirillum brasilense. Were evaluated the variables of gas exchange (A, gs, Ci, E) and the variables estimated efficiency of water use, photosynthetic efficiency and SPAD index at 16, 46 and 81 DAE, leaf area at 70 DAE, dry matter at 90 DAE. Plants were harvested at 90 DAE and the stalks were prepared for the determination of POL% RA% and TRS kg t-1. The application of plant growth regulator at a dose of 440.7 ml ha-1 had the highest photosynthetic efficiency up to 46 DAE. Under the experimental conditions the treatment plant growth regulator has no significant effect on the increase of total recoverable sugar production. The plant growth regulator showed synergy with nitrogen fertilization treatments, leading to increase in the development of phenological characteristics leaf area and dry matter of crop. Concludes that the action of the bioregulators did not influence the production of sugars by the plant, though it showed a good candidate to reduce the costs of nitrogen fertilizer in culture, to improve the photosynthetic efficiency in both sorghum plants in the N metabolized was derived from the inoculation with Azospirillum brasilense and nitrogen fertilization.

A atividade de exploração e produção (E&P) de óleo e gás caracteriza-se por ser tipicamente de capital intensivo, envolver altos riscos e longos prazos de maturação dos investimentos, evidenciando valores significativos dos ativos empregados e apresentando, consequentemente, dificuldade na recuperação dos valores capitalizados. Assim, o teste para verificar a recuperação dos valores dos ativos impairment tem importância acentuada para o setor. Nesse contexto, o presente trabalho objetivou identificar o impacto das variações no preço do petróleo e no volume de reservas provadas sobre a perda do valor de recuperação (impairment) atribuída aos ativos de E&P de empresas petrolíferas listadas na NYSE, durante o período que correspondeu aos relatórios contábeis de 2003 a 2008. Para tal: (i) foram caracterizadas a indústria e a contabilidade para o setor petrolífero, sobretudo o seu principal segmento, de E&P; (ii) foram levantadas as principais normas norte-americanas, internacionais e brasileiras que orientam a metodologia do teste de impairment, evidenciando suas diferenças; (iii) foi apresentada a aplicação do teste de impairment especificamente na indústria petrolífera e (iv) foram levantadas evidências empíricas para serem identificadas as influências das variáveis selecionadas sobre a despesa de impairment atribuída ao segmento de E&P. Na caracterização da indústria petrolífera e de sua contabilidade ficaram evidentes características peculiares como, por exemplo, a possibilidade de escolha de um dos dois métodos de contabilização para os gastos incorridos nas atividades de E&P. Na análise das normas que orientam o teste de impairment, constatou-se que, apesar das consideráveis semelhanças, as diferenças observadas podem distorcer o real objetivo do instrumento, que é o de garantir que os registros contábeis retratem o valor mais acurado possível dos benefícios econômicos futuros que os ativos podem gerar à entidade. Na análise da aplicação do teste na indústria petrolífera, ficou evidente o risco existente na atividade de E&P, o que atribui a seus ativos uma incerteza na realização dos fluxos de caixas futuros. E, por fim, na análise de como as variáveis selecionadas se relacionam e, consequentemente, influenciam as Despesas de Impairment de E&P, observou-se, principalmente, a relação inversa dessa variável com os valores de Descobertas. Esses resultados dão indícios de que a variável Descoberta deve ser premissa levada em consideração no cálculo do valor de recuperação de um ativo de E&P. / Oil and gas exploration and production (E&P) is characterized as an activity that is typically capital-intensive, involves high risks and long investment maturity terms, with high values of assets used and, consequently, difficulties to recover capitalized amounts. Hence, impairment tests are very important to the sector. In that context, this research aimed to identify the impact of variations in oil prices and proven reserve volumes in the impairment of E&P assets of oil companies listed on NYSE, during the period corresponding to the financial statements between 2003 and 2008. Therefore, (i) the industry and accounting for the oil sector were characterized, particularly its main segment, which is E&P, (ii) the main North American, international and Brazilian standards were survey which guide the impairment test method, evidencing differences, (iii) the application of the impairment test was presented, specifically in the oil industry, and (iv) empirical evidence was raised to identify the influences of the identified variables on impairment expense attributed to the E&P segment. In the characterization of the oil industry and its accounting, peculiar characteristics were evidenced, such as, for example, the possibility to choose between one of two methods to account for costs incurred in E&P activities. In the analysis of the standards guiding the impairment test, it was verified that, despite considerable similarities, the observed differences can distort the true goal of this instrument, which is to guarantee that accounting records picture the value of the future economic benefits the assets can create for the entity as precisely as possible. In the analysis of the test application to the oil industry, the risk of E&P activities was evidenced, which entails uncertainty for the realization of these assets future cash flows. And, finally, in the analysis of how the selected variables are related and, consequently, influence Impairment Expenses of E&P, the main observation was related to the inverse relation between this variable and the values of Discoveries. These results indicate that the Discovery variable should be a premise taken into account when calculating the recovery value of an E&P asset.

In 1997, Rogner published a paper containing an estimate of the natural gas in place in unconventional reservoirs for 11 world regions. Rogner's work was assessing the unconventional gas resource base, and is now considered to be very conservative. Very little is known publicly about technically recoverable unconventional gas resource potential on a global scale. Driven by a new understanding of the size of gas shale resources in the United States, we estimated original gas in place (OGIP) and technically recoverable resource (TRR) in highly uncertain unconventional gas reservoirs, worldwide. We evaluated global unconventional OGIP by (1) developing theoretical statistic relationships between conventional hydrocarbon and unconventional gas; (2) fitting these relationships to North America publically available data; and (3) applying North American theoretical statistical relationships to evaluate the volume of unconventional gas resource of the world. Estimated global unconventional OGIP ranges from 83,300 (P10) to 184,200 (P90) Tcf. To assess global TRR from unconventional gas reservoirs, we developed a computer program that we call Unconventional Gas Resource Assessment System (UGRAS). In the program, we integrated a Monte Carlo technique with an analytical reservoir simulator to estimate the original volume of gas in place and to predict production performance. We used UGRAS to evaluate the probabilistic distribution of OGIP, TRR and recovery factor (RF) for the most productive unconventional gas formations in the North America. The P50 of recovery factor for shale gas, tight sands gas and coalbed methane is 25%, 79% and 41%, respectively. Finally, we applied our global OGIP assessment and these distributions of recovery factor gained from our analyses of plays/formations in the United States to estimate global technically recoverable unconventional gas resource. Global technically recoverable unconventional gas resource is estimated from 43,000 (P10) to 112,000 (P90) Tcf.

A atividade de exploração e produção (E&P) de óleo e gás caracteriza-se por ser tipicamente de capital intensivo, envolver altos riscos e longos prazos de maturação dos investimentos, evidenciando valores significativos dos ativos empregados e apresentando, consequentemente, dificuldade na recuperação dos valores capitalizados. Assim, o teste para verificar a recuperação dos valores dos ativos impairment tem importância acentuada para o setor. Nesse contexto, o presente trabalho objetivou identificar o impacto das variações no preço do petróleo e no volume de reservas provadas sobre a perda do valor de recuperação (impairment) atribuída aos ativos de E&P de empresas petrolíferas listadas na NYSE, durante o período que correspondeu aos relatórios contábeis de 2003 a 2008. Para tal: (i) foram caracterizadas a indústria e a contabilidade para o setor petrolífero, sobretudo o seu principal segmento, de E&P; (ii) foram levantadas as principais normas norte-americanas, internacionais e brasileiras que orientam a metodologia do teste de impairment, evidenciando suas diferenças; (iii) foi apresentada a aplicação do teste de impairment especificamente na indústria petrolífera e (iv) foram levantadas evidências empíricas para serem identificadas as influências das variáveis selecionadas sobre a despesa de impairment atribuída ao segmento de E&P. Na caracterização da indústria petrolífera e de sua contabilidade ficaram evidentes características peculiares como, por exemplo, a possibilidade de escolha de um dos dois métodos de contabilização para os gastos incorridos nas atividades de E&P. Na análise das normas que orientam o teste de impairment, constatou-se que, apesar das consideráveis semelhanças, as diferenças observadas podem distorcer o real objetivo do instrumento, que é o de garantir que os registros contábeis retratem o valor mais acurado possível dos benefícios econômicos futuros que os ativos podem gerar à entidade. Na análise da aplicação do teste na indústria petrolífera, ficou evidente o risco existente na atividade de E&P, o que atribui a seus ativos uma incerteza na realização dos fluxos de caixas futuros. E, por fim, na análise de como as variáveis selecionadas se relacionam e, consequentemente, influenciam as Despesas de Impairment de E&P, observou-se, principalmente, a relação inversa dessa variável com os valores de Descobertas. Esses resultados dão indícios de que a variável Descoberta deve ser premissa levada em consideração no cálculo do valor de recuperação de um ativo de E&P. / Oil and gas exploration and production (E&P) is characterized as an activity that is typically capital-intensive, involves high risks and long investment maturity terms, with high values of assets used and, consequently, difficulties to recover capitalized amounts. Hence, impairment tests are very important to the sector. In that context, this research aimed to identify the impact of variations in oil prices and proven reserve volumes in the impairment of E&P assets of oil companies listed on NYSE, during the period corresponding to the financial statements between 2003 and 2008. Therefore, (i) the industry and accounting for the oil sector were characterized, particularly its main segment, which is E&P, (ii) the main North American, international and Brazilian standards were survey which guide the impairment test method, evidencing differences, (iii) the application of the impairment test was presented, specifically in the oil industry, and (iv) empirical evidence was raised to identify the influences of the identified variables on impairment expense attributed to the E&P segment. In the characterization of the oil industry and its accounting, peculiar characteristics were evidenced, such as, for example, the possibility to choose between one of two methods to account for costs incurred in E&P activities. In the analysis of the standards guiding the impairment test, it was verified that, despite considerable similarities, the observed differences can distort the true goal of this instrument, which is to guarantee that accounting records picture the value of the future economic benefits the assets can create for the entity as precisely as possible. In the analysis of the test application to the oil industry, the risk of E&P activities was evidenced, which entails uncertainty for the realization of these assets future cash flows. And, finally, in the analysis of how the selected variables are related and, consequently, influence Impairment Expenses of E&P, the main observation was related to the inverse relation between this variable and the values of Discoveries. These results indicate that the Discovery variable should be a premise taken into account when calculating the recovery value of an E&P asset.

La presente investigación tiene como objetivo evaluar el impacto financiero y tributario de la NIC 36: Deterioro del Valor de los Activos en empresas del sector comercial de útiles de oficina, insumos de cómputo y papelería de Lima, Año 2017. Para el desarrollo de la presente tesis se tiene como respaldo la Norma Internacional Contable 36, que se ejecutó a partir del 31 de Marzo del 2004. La NIC 36 nos señala establecer las políticas y procedimientos que una entidad debe aplicar para realizar un correcto cálculo de las estimaciones; asi como su registro utilizando como base de criterio el importe recuperable, para mostrar los importes correctos en los Estados Financieros. Capitulo I Marco teórico, se realiza una investigación de fuentes primarias para obtener información de las normas internacionales de información financiera (NIIFs), impacto financiero y tributario, que permite respaldar la investigación. En el capitulo II se trata de plantear la situación problemática del tema, el problema principal, el objetivo principal y específicos, la hipótesis principal y específicos para que sean validadas en la investigación. El capitulo III Metodologia de investigación se define la población y la muestra para la realizacion de la investigación cualitativa y cuantitativa. El capitulo IV se realiza la investigación a través de las entrevistas, encuestas y el desarrollo del caso practico. Capitulo V Analisis de resultados, se realiza el análisis de los instrumentos y el caso practico. Y se culmina con la validación de las hipótesis por medio de los resultados obtenidos en el CHI cuadrado. / The objective of this research is to evaluate the financial and tax impact of IAS 36: Impairment of Assets in companies in the commercial sector of office supplies, computer supplies and stationery in Lima, Year 2017. For the development of this thesis the International Accounting Standard 36, which was executed as of March 31, 2004, is supported. IAS 36 indicates that we establish the policies and procedures that an entity must apply in order to calculate the estimates correctly; as well as its registration using the recoverable amount as a criterion basis, to show the correct amounts in the Financial Statements. Chapter I Theoretical framework, an investigation of primary sources is made to obtain information of the international financial information standards (IFRS), financial and tax impact, which allows to support the investigation. In chapter II, we try to state the problematic situation of the subject, the main problem, the main and specific objective, the main and specific hypothesis to be validated in the investigation. Chapter III Research methodology is defined population and sample for the realization of qualitative and quantitative research. Chapter IV carries out the research through interviews, surveys and the development of the practical case. Chapter V Analysis of results, the analysis of the instruments and the practical case is carried out. And it culminates with the validation of the hypotheses by means of the results obtained in the square CHI. / Tesis

Codes from curves over finite fields were first developed in the late 1970's by V. D. Goppa and are known as algebraic geometry codes. Since that time, the construction has been tailored to fit particular applications, such as erasure recovery and error correction using less received information than in the classical case. The Hermitian-lifted code construction of L'opez, Malmskog, Matthews, Piñero-González, and Wootters (2021) provides codes from the Hermitian curve over $F_{q^2}$ which have the same locality as the well-known one-point Hermitian codes but with a rate bounded below by a positive constant independent of the field size. However, obtaining explicit expressions for the code is challenging. In this dissertation, we consider codes from norm-trace curves, which are a generalization of the Hermitian curve. We develop norm-trace-lifted codes and demonstrate an explicit basis of the codes. We then consider fractional decoding of codes from norm-trace curves, extending the results obtained for codes from the Hermitian curve by Matthews, Murphy, and Santos (2021). / Doctor of Philosophy / Coding theory focuses on recovering information, whether that data is corrupted and changed (called an error) or is simply lost (called an erasure). Classical codes achieve this goal by accessing all received symbols. Because long codes, meaning those with many symbols, are common in applications, it is useful for codes to be able to correct errors and recover erasures by accessing less information than classical codes allow. That is the focus of this dissertation. Codes with locality are designed for erasure recovery using fewer symbols than in the classical case. Such codes are said to have locality $r$ and availability $s$ if each symbol can be recovered from $s$ disjoint sets of $r$ other symbols. Algebraic curves, such as the Hermitian curve or the more general norm-trace curves, offer a natural structure for designing codes with locality. This is done by considering lines intersected with the curve to form repair groups, which are sets of $r+1$ points where the information from one point can be recovered using the rest of the points in the repair group. An error correction method which uses less data than the classical case is that of fractional decoding. Fractional decoding takes advantage of algebraic properties of the field trace to correct errors by downloading only a $lambda$-proportion of the received information, where $lambda < 1$. In this work, we consider a new family of codes resulting from norm-trace curves, and study their locality and availability, as well as apply the ideas of fractional decoding to these codes.

Fatigue cracking is one of the most common distresses of asphalt pavements, whereas healing is a counter process to cracking which alleviates cracking damage and extends fatigue life of asphalt pavements. Most of existing methods to characterize fatigue cracking and healing are generally empirical or phenomenological in nature, which does not satisfy the need to develop mechanistic-based pavement design methods. The objective of this study is to characterize fatigue cracking and healing of asphalt mixtures using an energy-based mechanistic approach. A controlled-strain repeated direct tension (RDT) test is selected to generate both fatigue cracking and permanent deformation in an asphalt mixture specimen. Fatigue cracking is separated from permanent deformation from a mechanical viewpoint. The development of fatigue cracking is described by the evolution of the damage density and the increase of the average crack size with the increase of loading cycles. A creep and step-loading recovery (CSR) test is designed to measure the internal stress in the recovery phase of an asphalt mixture specimen. The internal stress and the strain measured in the recovery phase are used to conduct the mechanistic analysis of recovery and healing of the asphalt mixture specimen. Then healing is described using the decrease of the damage density and average crack size with time. Different types of asphalt mixtures produce distinctly different fatigue cracking and healing characteristics. The effect of mixture composition, temperature, and aging are evaluated using the approach above. The entire series of tests for fatigue, permanent deformation and healing can be completed in one day, with the healing part requiring only a matter of minutes. The methods proposed in this study characterize fatigue cracking and healing of asphalt mixtures using its essential cause and effect relationship.

As gas production from conventional gas reservoirs in the United States decreases, industry is turning more attention to the exploration and development of unconventional gas resources (UGR). This trend is expanding quickly worldwide. Unlike North America where development of UGRs and technology is now mature and routine, many countries are just beginning to develop unconventional gas resources. Rogner (1996) estimated that the unconventional gas in place, including coalbed methane, shale gas and tight-sand gas, exceeds 30,000 Tcf worldwide. As part of a research team, I helped to develop a software package called Unconventional Gas Resource Advisory (UGRA) System which includes the Formation Analog Selection Tool (FAST) and Basin Analog Investigations (BASIN) to objectively and rapidly identify and rank mature North American formations and basins that may be analogous to nascent international target basins. Based on BASIN and FAST results, the relationship between mature and underexplored basins is easily accessed. To quantify the unconventional resource potential in typical gas basins, I revised and used a computer model called the Petroleum Resources Investigation Summary and Evaluation (PRISE) (Old, 2008). This research is based on the resource triangle concept, which implies that all natural resources, including oil and gas, are distributed log-normally. In this work, I describe a methodology to estimate values of technically recoverable resources (TRR) for unconventional gas reservoirs by combining estimates of production, reserves, reserves growth, and undiscovered resources from a variety of sources into a logical distribution. I have also investigated mature North American unconventional gas resources, and predict unconventional resources in underexplored basins worldwide for case study. Based on the results of testing BASIN and PRISE, we conclude that our evaluation of 24 North American basins supports the premise that basins analysis can be used to estimate UGRs.

Despite the growing interest in heterogeneous polymerization catalysis, the majority of the polymerization catalysts used industrially are single-use entities that are left in the polymer product. Recoverable and recyclable polymerization catalysts have not reached the industrial utility of single-use catalysts because the catalyst and product separation have not become economical. The successful development of recyclable transition metal polymerization catalysts must take a rational design approach, hence academic and industrial researchers need to further expand the fundamental science and engineering of recyclable polymerization catalysis to gain an understanding of critical parameters that allow for the design of economically viable, recoverable solid polymerization catalysts. Unfortunately, the rapid development of Atom Transfer Radical Polymerization over the past 10 years has not resulted in its wide spread industrial practice. Numerous reports regarding the immobilization of transition metal ATRP catalysts, in attempts to increase its applicability, have extended the fundamentals of recyclable polymerization catalysis. However, for industrial viability, more research is required in the area of how the catalyst complex immobilization methodology and support structure affect the catalyst polymerization performance, regeneration, and recyclability. A comprehensive rational catalyst design approach of silica-immobilized ATRP catalyst was undertaken to answer these questions and are discussed here.

In this thesis we develop exact repair schemes capable of repairing or circumventing unavailable servers of a distributed network in the context of distributed storage and secure distributed matrix multiplication. We develop the (Λ, Γ, W, ⊙)-exact repair scheme framework for discussing both of these contexts and develop a multitude of explicit exact repair schemes utilizing decreasing monomial-Cartesian codes (DMC codes). Specifically, we construct novel DMC codes in the form of augmented Cartesian codes and rectangular monomial-Cartesian codes, as well as design exact repair schemes utilizing these constructions inspired by the schemes from Guruswami and Wootters [16] and Chen and Zhang [6]. In the context of distributed storage we demonstrate the existence of both high rate and low bandwidth systems based on these schemes, and we develop two methods to extend them to the l-erasure case. Additionally, we develop a family of hybrid schemes capable of attaining high rates, low bandwidths, and a balance in between which proves to be competitive compared to existing schemes. In the context of secure distributed matrix multiplication we develop similarly impactful schemes which have very competitive communication costs. We also construct an encoding algorithm based on multivariate interpolation and prove it is T-secure. / Doctor of Philosophy / Distributed networks may be thought of as networks of computers and/or servers which are capable of transmitting and receiving data from one another. For many applications it is possible for distributed networks to perform better than the sum of their constituent parts. In this thesis we will focus on the particular applications of distributed storage and secure distributed multiplication. A distributed storage system is a system that is capable of storing a single data file over every server in a distributed network. Distributed storage systems often come with exact repair schemes which are algorithms designed to reconstruct the data from a server in the network given the data from the other servers. In particular, if a server on the network ever fails or is otherwise unavailable an exact repair scheme can be used to repair the lost data from the server and maintain the original file. A distributed matrix multiplication scheme on the other hand is a process by which two matrices stored on a source server can be multiplied using a distributed network of helper servers. Again if a helper server becomes unavailable during this process we may use an exact repair scheme to circumvent this delay. The main goal of this thesis is to develop exact repair schemes for the distributed storage and secure distributed matrix multiplication contexts utilizing a mathematical object known as an evaluation code. We will develop several families of exact repair schemes which may be finely tuned to fit particular situations within these contexts, and we will compare these schemes to the existing schemes in the field.