Academic literature on the topic 'Onion model'
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Journal articles on the topic "Onion model"
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Reichenbach, Michael. "Onion Model." ATZ worldwide 117, no. 11 (October 27, 2015): 3. http://dx.doi.org/10.1007/s38311-015-0077-y.
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Victors, Jesse, Ming Li, and Xinwen Fu. "The Onion Name System." Proceedings on Privacy Enhancing Technologies 2017, no. 1 (January 1, 2017): 21–41. http://dx.doi.org/10.1515/popets-2017-0003.
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Abstract Tor onion services, also known as hidden services, are anonymous servers of unknown location and ownership that can be accessed through any Torenabled client. They have gained popularity over the years, but since their introduction in 2002 still suffer from major usability challenges primarily due to their cryptographically-generated non-memorable addresses. In response to this difficulty, in this work we introduce the Onion Name System (OnioNS), a privacy-enhanced decentralized name resolution service. OnioNS allows Tor users to reference an onion service by a meaningful globally-unique verifiable domain name chosen by the onion service administrator.We construct OnioNS as an optional backwards-compatible plugin for Tor, simplify our design and threat model by embedding OnioNS within the Tor network, and provide mechanisms for authenticated denial-of-existence with minimal networking costs. We introduce a lottery-like system to reduce the threat of land rushes and domain squatting. Finally, we provide a security analysis, integrate our software with the Tor Browser, and conduct performance tests of our prototype.
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Umap, H. P. "Onion Inventory Model." International Journal of Mathematics Trends and Technology 26, no. 1 (October 25, 2015): 40–42. http://dx.doi.org/10.14445/22315373/ijmtt-v26p509.
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Magfiroh, Illia Seldon, Ahmad Zainuddin, Intan Kartika Setyawati, and Rena Yunita Rahman. "RESPON HARGA PRODUSEN TERHADAP PERUBAHAN HARGA KONSUMEN BAWANG MERAH DI INDONESIA." JSEP (Journal of Social and Agricultural Economics) 10, no. 3 (April 30, 2018): 7. http://dx.doi.org/10.19184/jsep.v10i3.6481.
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High price fluctuations in onions can cause prices at the consumer level to change in a relatively quick time. However, the price change is not necessarily enjoyed by most of the onion farmers. This implies a high marketing margin and low farmer prices. This study aims to analyze the integration of onion consumer market with onion producer market in Indonesia by using VECM (Vector Error Correction Model). Monthly onion price data with 48 time series period is used to analyze the onion market integration. The results show that only the consumer market that affects the market of onion producers (one way). There are short-term and long-term market integration between the consumer market and the onion producers. However, changes that occur in the consumer market are not always accepted by the onion producers of the same scale. This shows that the price information of onion in the producer's market is not always transmitted perfectly to the onion producer market.
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Feibert, Erik B. G., Clinton C. Shock, and Lamont D. Saunders. "A Comparison of Onion Production Under Sprinkler, Subsurface Drip, and Furrow Irrigation." HortScience 30, no. 4 (July 1995): 839A—839. http://dx.doi.org/10.21273/hortsci.30.4.839a.
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Onion yield and grade were compared under sprinkler, subsurface drip, and furrow irrigation in 1992, 1993, and 1994. Furrow-irrigated onions were planted on two double rows on 1.12-m-wide beds at 352,000 seeds/ha. Sprinkler- and drip-irrigated onions were planted in nine single rows on a 2.24-m-wide bed at 432,100 seeds/acre. Drip plots had three drip lines buried 0.10 m deep in each 2.24-m bed. Soil water potential at 0.2-m depth was measured by tensiometers and granular matrix sensors (Watermark Model 200SS, Irrometer Co., Riverside, Calif.). Furrow irrigations were started when the soil water potential at the 0.2-m depth reached –25 kPa. Drip-irrigated onions had soil water potential at the 0.2-m depth kept wetter than –25 kPa by daily replacement of crop evapotranspiration (Etc). Sprinkler irrigations were started when the accumulated Etc reached 25 mm. Sprinkler irrigation resulted in significantly higher onion yield than furrow irrigation in 1993 and 1994. Sprinkler irrigation resulted in higher marketable onion yield than furrow irrigation in 1993. Drip irrigation resulted in significantly higher onion yield than furrow irrigation every year. Drip irrigation resulted in higher marketable onion yield than furrow irrigation in 1992 and 1994. Marketable onion yield was reduced in 1993 due to rot during storage.
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G, Vonny Faradila, Ernoiz Antriyandarti, and Isti Khomah. "Analysis of Factors Affecting the Supply of Onion in Brebes Regency." Journal of Agribusiness and Community Empowerment (JACE) 5, no. 1 (March 27, 2022): 21–36. http://dx.doi.org/10.32530/jace.v5i1.376.
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This analysis of the supply of onion in Brebes Regency is done using the methods of descriptive and analytic, and secondary data time series for 21 years (1998-2018). This study also utilizes the analysis of multiple linear by entering the model analysis of the distributed lag model with adjustment Nerlove (Partial Adjustment Model). The supply function is estimated with the approach of total production. The results of the multiple linear regression analysis obtained the factors that affect positively to the offer of onion in Brebes Regency is a vast harvest of onion in year t, the number of onion production in year t-1, the price of onions in year t-1, the price of garlic in year t-1, the average rainfall in year t, and interest rate in year t. The factor that negatively affects the offer is the price of urea fertilizer in year t. The most influential factor to the offer of onion in Brebes Regency is a vast harvest of onion in year t with the standardized regression coefficient of 0,889. The elasticity of supply for the area variable harvesting onions in year t is positive and is elastic with E>1, namely 1,328 for the short-term and 1,832 for the long term. Elasticity is inelastic with E value<1 is a variable amount of production in the previous year i.e. 0,275 short-term and 0,379 long-term prices of garlic in the previous year with a value of 0,105 short-term and of 0.145 long-term, the price of onions in the previous year with a value of -0,143 short-term and -0,197 the long term, the interest rate in year t, namely 0,136 and 0,188, and the average rainfall in year t with the value of -0,218 short-term and -0,301 the long term.
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Sobowale, Sunday Samuel, Oluwole Benjamin Omotoso, Yusuf Olamide Kewuyemi, and Olawale Paul Olatidoye. "Influence of temperature and thickness on thin layer drying characteristics of onion (Allium cepa L.) varieties and rehydration capacity." Croatian journal of food science and technology 12, no. 2 (November 30, 2020): 165–76. http://dx.doi.org/10.17508/cjfst.2020.12.2.04.
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Nonlinear regression analysis was conducted for thin layer drying characteristics of two onion varieties (white and red) and some quality characteristics were also examined. The experimental data obtained at drying temperatures of 40, 50, and 60 oC and thicknesses of 2, 4 and 6 mm, was subsequently fitted into four commonly used models (Henderson and Pabis, Lewis, Page, and logarithmic). Moisture diffusivity and activation energy ranged from 8.9 × 10-10 to 8.4 × 10-9 m2/s and 55.98 to 65.68 KJ/mol, respectively. Significant differences (p<0.05) were observed in the colour profile and rehydration ratio. The optimum desirable colour was obtained at 50 oC with 2 mm thick onion slices and the observed higher rehydration ratio indicates good quality of dried onions. Among the four selected drying models, the Page model predicted optimally (R2> 0.9) and was found to be better in describing dried onion varieties, while the Lewis model provided the least fit.
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Sobowale, Sunday Samuel, Oluwole Benjamin Omotoso, Yusuf Olamide Kewuyemi, and Olawale Paul Olatidoye. "Influence of temperature and thickness on thin layer drying characteristics of onion (Allium cepa L.) varieties and rehydration capacity." Croatian journal of food science and technology 12, no. 2 (November 30, 2020): 165–76. http://dx.doi.org/10.17508/cjfst.2020.12.2.04.
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Nonlinear regression analysis was conducted for thin layer drying characteristics of two onion varieties (white and red) and some quality characteristics were also examined. The experimental data obtained at drying temperatures of 40, 50, and 60 oC and thicknesses of 2, 4 and 6 mm, was subsequently fitted into four commonly used models (Henderson and Pabis, Lewis, Page, and logarithmic). Moisture diffusivity and activation energy ranged from 8.9 × 10-10 to 8.4 × 10-9 m2/s and 55.98 to 65.68 KJ/mol, respectively. Significant differences (p<0.05) were observed in the colour profile and rehydration ratio. The optimum desirable colour was obtained at 50 oC with 2 mm thick onion slices and the observed higher rehydration ratio indicates good quality of dried onions. Among the four selected drying models, the Page model predicted optimally (R2> 0.9) and was found to be better in describing dried onion varieties, while the Lewis model provided the least fit.
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Jamieson, L. E., A. Chhagan, and M. Griffin. "Temperature development and damage rates of onion thrips." New Zealand Plant Protection 65 (January 8, 2012): 126–32. http://dx.doi.org/10.30843/nzpp.2012.65.5381.
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Bulb damage caused by onion thrips (Thrips tabaci Thysanoptera Thripidae) is a serious problem in New Zealand stored export onions Understanding the relationships between insect development rates temperature and damage potential is critical to effective pest management by targeting fewer pesticide applications Thrips development (egg to adult) was monitored daily on leek leaves onion leaves or onion bulb discs at constant and variable temperatures Development rates were not significantly different on different substrates but survival was lower on onion bulbs Total development time (egg to adult) ranged from 511 days at 12C to 103 days at 30C Lower development temperature thresholds ranged from 73C for pupae to 91C for eggs Accumulation of 221 degreedays above 81C was required to complete development The temperature development model accurately predicted development time of onion thrips under variable temperature conditions At 21C adults and larvae caused an average of 201 and 107 mm2 of feeding damage to onion bulbs per day respectively
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Cho, Sumin, Jeong-Eun Oh, Jong-Hyun Baek, and Byung Min Soon. "Modeling the Onion Market Using Sentiment Analysis with Deep Learning." Korean Agricultural Economics Association 63, no. 3 (September 30, 2022): 33–54. http://dx.doi.org/10.24997/kjae.2022.63.3.33.
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This study analyzed the effect of the sensitivity of news related to onions on producers' decision-making on cultivation areas and market supply and demand. We collected onion-related article data and derived the sentiment index through sentiment analysis using neural networkbased learning. We estimated the cultivation area function, including the sentiment index we made. We analyzed the impact of news sensitivity on the onion market by constructing an onion market supply and demand model. Then, we gave a sentiment index shock to the cultivation area to examine the impact on the onion market. We also explored the sensitivity analysis to emphasize the news in June, July, and August plays an important role in the supply side. To the best of our knowledge, our approach using sentiment index in the agricultural model is the first trial. Therefore, our study can introduce an approach to improve the accuracy of modeling for agriculture and apply it to the area of agricultural economics.
Dissertations / Theses on the topic "Onion model"
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Kamoi, T. "Developing an optimal method for producing a tearless onion." Diss., Lincoln University, 2008. http://hdl.handle.net/10182/1008.
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People experience the irritating tearing and burning sensation of lachrymatory factor (LF, propanthial S-oxide) when cutting or chopping onion bulbs. LF is produced by lachrymatory factor synthase (LFS) specifically from 1-propenyl sulfenic acid, a breakdown product of trans-1-propenyl-L-cysteine sulfoxide (1-PRENCSO) by alliinase. This thesis describes strategies to produce a tearless onion by using RNA interference (RNAi) silencing. To determine whether a gene silencing cassette can silence lfs gene transcripts from onion (Allium cepa L.), a crop recalcitrant to genetic transformation, a gene silencing assessment system was developed by using a model plant as a host for the gene of interest. Tobacco (Nicotiana tabacum) plants transgenic for LFS enzyme activity from onion were first produced by introducing a CaMV 35S-onion-lfs gene construct. These plants were then subjected to a second transformation with an RNAi construct directed against the lfs gene sequence. LFS enzyme activity assay showed that the transgenic plants, containing both the lfs gene and the RNAi construct, had significantly reduced LFS activity. This observation was supported by Western analysis for the LFS protein and further validated by quantitative RT-PCR analysis that demonstrated a significant reduction in the lfs transcript level in the dual transformants. This work demonstrated that the RNAi construct is a suitable candidate for the development of a tearless onion. This model plant RNAi system has wide reaching applications for assessment and targeting of plant secondary pathway genes, from poorly studied or recalcitrant plant species, that are important in pharmacological, food and process industries. The functional RNAi vector identified in the model system was transformed into onion. Endogenous lfs transcript levels were successfully reduced by up to 43-fold in six transgenic lines. In consequence, LFS enzyme activity was decreased by up to 1573-fold and this observation was supported by Western analysis for the LFS protein. Furthermore, the production of the deterrent LF upon tissue disruption was reduced up to 67-fold. Subjective olfactory assessment of silenced lines indicated that the pungent odour given off by the leaf and bulb material was much reduced compared with that of non-transgenic counterparts, and that this was replaced by a sweeter milder onion odour. A novel colorimetric assay demonstrated that this silencing had shifted the 1-PRENCSO breakdown pathway so that by reducing LFS protein, more 1-propenyl sulfenic acid was converted into di-1-propenyl thiosulfinate. A consequence of the raised thiosulfinates levels was a marked increase in the downstream production of a non-enzymatically produced zwiebelane isomer that has never previously been identified, and other volatile compounds, di-1-propenyl disulfides and 2-mercapto-3,4-dimethyl-2,3-dihydrothiophenes, which had previously been reported either in small amounts or had not been detected in onions. These raised volatile sulfur compounds provide an explanation for the unique flavour notes of the LF reduced onion and are predicted to have health benefits akin to those found in garlic. These results demonstrated that silencing of LFS enzyme activity by introducing an RNAi construct directed against the lfs gene sequence simultaneously reduced levels of the deterrent LF and increased the desirable thiosulfinates in onions.
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Soukup, Jan. "Podnikatelské modely na deep webu." Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-204848.
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This diploma thesis analyzes the deep web environment with the use of business models from the surface web. In the indroduction part of the thesis summarize terms web, deep web and dark web, these terms are intermingle the entire thesis, also brings the concept on Onion routing with use of Tor software. An inseparable part is the comparsion of tools which can be used for access to the dark web. The main part of the thesis analyzes most used business models on the surface web including their methods of monetization and after that author tries to apply these models in the dark web environment. An importat part of this work is the analysis a type of services occuring on the dark web and mutual comparison of several sub-criteria of each service. In the final part the thesis presents project Turris on which is applied to create a relay node for the Tor network.
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Cook, Ethan L. "Near-Salt Stratal Geometries and Implications for the Evolution of the Onion Creek Diapir Moab, UT." BYU ScholarsArchive, 2017. https://scholarsarchive.byu.edu/etd/6327.
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The Onion Creek Diapir is one of many salt domes proximal to the Uncompahgre thrust front of the ancestral rockies in the Paradox Basin. It is comprised of Paradox Formation evaporites and large blocks of Honaker Trail Formation carbonates that were deformed by loading of Permian Cutler Formation progradational alluvial to fluvial fans. The history of salt movement in the Onion Creek Diapir is recorded in the near-salt strata. Large salt bodies and their adjacent mini-basins evolve conforming to a complex relationship between salt withdrawal, creating localized accommodation, and sediment deposition. Migrating mini-basin depo-centers, thinned and folded strata, and spatial facies trends reveal the relative rates of diapirism and sedimentation. The study area outcrop, north of the diapir, is divided by significant stratigraphic horizons that help define depositional periods. Six measured sections in the study area reveal higher preservation rates of fine grained floodplain deposits, typically destroyed in alluvial environments, than at locations correlating to stratigraphic levels high in the outcrop suggesting a low accommodation environment evolving into higher accommodation where stacked channel complexes are preserved. Preserved slump folding at the base of the outcrop reveals that although some salt emergence occurred in the earliest depositional period it was not significant enough to preclude sediment deposition or to divert the Cutler fluvial network and destroy floodplain facies. A 3-D digital outcrop, modeled from photogrammetric data, illustrates the development of localized accommodation, attracting fluvial channel in a near-salt, tight axial syncline during the later depositional period. These evidences suggest a greater emergence of the diapir and likely diversion of the Cutler channel complexes.
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Nesterenko, Mykola. "Implementation of E-Government services : Analysis of factors in case of Ukraine." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-37935.
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Electronic services have become a vital part in the implementation of electronic government. Government electronic services are significant tools for effective cooperation in any country between government, authorities, citizens, organisations, and so on. In order to implement these services it is necessary to know possible barriers and obstacles – factors, which can influence on the implementation process. Study in this field of research showed that a well-structured list of the factors that can influence on this implementation process is absent now. The purpose of this research is to identify and collect, analyse and structure different factors that can influence the implementation process of electronic government services. The collected list of factors have studied in the case of Ukraine. This research was conducted within the scope of Master’s level program in Linnaeus University, Sweden. In this research was used the mix method approach. The qualitative study was conducting through literature review and six interviews with people related to electronic government services. At the same time, as quantitative study was a survey with 131 answers from citizens. For analysing and structuring were using the Onion Ring Model of electronic government systems (Heeks, 2006) and the STEPLED analysis. The philosophical worldview of the research paper is social constructivism. During the research, I have studied more than 200 factors from different works of authors, which worked in this field. All collected factors were analysed and adapted in accordance to the Onion Ring Model. In addition, this model was modified by adding interlayers (additional rings) and extended in the Environment ring (with the usage of the STEPLED analysis). From the collected list were highlighted factors that influence on the implementation process in the case of Ukraine.
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Rodrigues, Dirceu Zeferino. "Redes neurais, identidade de modelos e resposta da cebola à adubação nitrogenada." Universidade Federal de Viçosa, 2013. http://locus.ufv.br/handle/123456789/4064.
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Previous issue date: 2013-03-21The study of the productivity curves compared with the amount of nitrogen absorbed by the onion crop is fundamentally important for the elaboration of a more efficient fertilization plan in technical terms as well as in economic terms. Many statistical techniques have been proposed, tested, and improved in order to help boost research in this direction. The justification for this research is the need to assess and improve new statistical techniques that help in obtaining accurate information in order to assist in decision making for improving productivity. For this case, this study aimed to use and evaluate two statistical methods with different specific objectives with respect to the evaluation of nitrogen application in the production of onion cultivars. In the first evaluation, statistical techniques based on regression models were used for adjusting curves for some nitrogen levels related to productivity, performing a survey with four onion cultivars in different locations, and then to carry out the evaluation of the grouping possibility of these statistical models using the models identity test. In this step, it was tried to estimate a curve that could represent together the fertilization response pattern in all four evaluated sites. In the second study, the goal was to verify the techniques efficiency based on neural networks. So, the proposal was to see the possibility of using safely this new concept based on artificial neural networks in research related to the onion cultivars response to nitrogen fertilization. In general, this study describes the successful use of new statistical techniques with emphasis on neural networks that help improve the onion productivity and thereafter to implement and disseminate techniques based on computational intelligence for purposes of study prediction and modeling.
O estudo das curvas de produtividade comparadas com a quantidade de nitrogênio absorvido pela cultura da cebola é de fundamental importância para a formulação de um plano de adubação que seja mais eficiente tanto em termos técnicos quanto econômicos. Diversas técnicas estatísticas têm sido propostas, testadas e aprimoradas com o intuito de contribuir para alavancar pesquisas nesta direção. A justificativa para este trabalho de pesquisa está na necessidade de avaliar e aprimorar novas técnicas estatísticas que ajudem na obtenção de informações precisas com a finalidade de auxiliar na tomada de decisão visando melhorar a produtividade. Para isso, este estudo teve como objetivo empregar e avaliar duas metodologias de auxílio à estatística, mas com objetivos específicos distintos com respeito à avaliação da aplicação de nitrogênio na produção dos cultivares da cebola. Na primeira avaliação, objetivou-se utilizar técnicas estatísticas baseadas em modelos de regressão e ajustar curvas para alguns níveis de doses de nitrogênio, relacionadas à produtividade, para uma pesquisa realizada com quatro cultivares em locais distintos de cebola e, em seguida, avaliar a possibilidade de agrupamento desses modelos estatísticos obtidos, utilizando o teste de identidade de modelos. Nesta etapa, procurou-se estimar uma curva que representasse, em conjunto, o padrão de resposta à adubação em todos os quatro locais avaliados. No segundo estudo, a meta era verificar a eficiência de técnicas baseadas em redes neurais. Assim, a proposta foi constatar se já é possível utilizar, com segurança, esse novo conceito baseado em redes neurais artificiais em pesquisas relacionadas à resposta de cultivares de cebola à adubação nitrogenada. De uma maneira geral, o trabalho descreve o êxito da utilização de novas técnicas estatísticas com ênfase em redes neurais que ajudem melhorar a produtividade da cebola para, a partir daí, permitir aplicar e difundir técnicas baseadas em inteligência computacional para fins de estudos de predição e modelagem.
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Šafránková, Lucie. "Diagnostika organizační kultury ve vybrané organizaci." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-136245.
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This diploma thesis deals with the Diagnosis of organizational culture in selected organization which is particularly a food company Kraft Foods CR. The aim of the diploma thesis is to describe the organizational culture in this organization through a Denison method of questionnaire survey and using my own observation. Then, based on the information gathered from the survey, I suggest to the management of the organization recommendations and actions that could lead to greater employee satisfaction and thus also to higher performance of the entire organization. The purpose of this thesis is not to change the organizational culture in the organization afterwards, only to support it and enhance its better perception among employees.
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Glue, Joshua Barnaby. "Engineering Allium White Rot Disease Resistance in Allium Species and Tobacco Model Species." Thesis, University of Canterbury. School of Biological Sciences, 2009. http://hdl.handle.net/10092/3513.
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Allium white rot (AWR) is a soilborne disease that seriously damages commercial cultivation of onion (Allium cepa) and garlic (Allium sativum) crops. The disease has been found everywhere onions are cultivated and at present no system of control has been found that fully prevents the occurrence of the disease. The fungus responsible for the disease, Sclerotium cepivorum, uses oxalic acid to kill Allium bulb and root tissue in growing onion and garlic plants. Research suggests recombinant oxalate oxidase and oxalate decarboxylase enzymes may be able to degrade this acid and confer resistance against pathogens that rely on it, such as Sm. cepivorum or Sclerotinia sclerotiorum. To test the efficacy of these enzymes against white rot pathogens, three transgenes for wheat oxalate oxidase, barley oxalate oxidase and Flammulina oxalate decarboxylase were transformed into onions and garlic by Agrobacterium-mediated transformation. Allium species are highly recalcitrant to transformation, so these three transgenes were also transformed into tobacco to provide fast-recovering, easy to test transformants to assess the efficacy of the transgenes. Transformed garlic and tobacco lines were analysed to assess the integration and expression of the transgenes, then challenged with Sm. cepivorum or Sa. sclerotiorum, respectively, to assess the bioactivity of recombinant wheat oxalate oxidase, barley oxalate oxidase, and Flammulina oxalate decarboxylase against oxalic acid-dependent pathogens. Results show that one line of tobacco expressing the Flammulina oxalate decarboxylase enzyme was found to be consistently resistant to Sclerotinia sclerotiorum. Garlic lines transformed with this transgene failed to display stable transgene expression or disease resistance, possibly due to silencing of the transgene in recovered transformant tissue.
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Paixão, Nathália Magalhães. "Estudo teórico de interações não covalentes entre complexos trinucleares de platina (II) e DNA." Universidade Federal de Juiz de Fora (UFJF), 2017. https://repositorio.ufjf.br/jspui/handle/ufjf/4505.
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CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Câncer é um processo de crescimento e disseminação incontrolado de células e tem sido considerado como uma questão de saúde pública. Os compostos polinucleares de Platina (II) têm se mostrado muito promissores contra células cancerosas devido a interações mais rápidas e efetivas em comparação com os compostos mononucleares, como por exemplo, o complexo BBR3464. A partir disso, diversos estudos vêm sendo realizados com intuito de descrever os modos de interação de tais compostos. Este trabalho tem como objetivo fornecer um estudo teórico sistemático do complexo trinuclear de platina (II), AH78, através do uso de diferentes níveis de cálculo. Os compostos trinucleares de platina (II) estudados nesse trabalho não são capazes de formar ligações covalentes com o DNA, interagindo através da formação de grampos de fosfato, que são preferencialmente interações de hidrogênio e eletrostáticas. Dessa forma, este trabalho teve como motivação avaliar a interação dos complexos trinucleares de platina (II) não covalentes com o DNA por meio da formação de grampos de fosfato, analisadas através de modelos miméticos demonstrando presença de tais interações a partir de uma análise mais rápida e eficaz. Foram obtidas estruturas contendo uma fração de DNA que contém 6 pares de bases nitrogenadas e o complexo AH78, utilizando o método ONIOM, que comprovam a existência dos grampos de fosfato entre o complexo e o DNA.
Cancer is a process of uncontrolled growth and spread of cells and has now been considered a public health issue. Polynuclear Platinum (II) Complexes (PPCs) have shown very promising against cancer cells because of faster and more effective interactions compared to mononuclear compounds, such as the BBR3464 complex. From this, several studies have been carried out to describe the modes of interaction of such compounds. This work provides an extensive and systematic theoretical study of the platinum (II) trinuclear complex, AH78, using different base set functions for C, N and H atoms, including diffusive and polarization functions and different ECPs for platinum. The platinum (II) trinuclear compounds studied in this work are not able to form covalent bonds with DNA, interacting by the formation of phosphate bonds, which are preferably hydrogen type and electrostatic interactions. Thus, this work had the motivation to evaluate the interaction of non-covalent platinum (II) trinuclear complexes with DNA by means of the formation of phosphate clamps, analyzed using mimetic models, demonstrating that the presence of such interactions from a faster analysis is efficient. Structures containing a DNA fraction were obtained with six purine base pairs and AH78 complex using the ONIOM method, which demonstrate the existence of the phosphate clamps between the complex and the DNA.
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Lin-YenKo and 柯伶燕. "Investigate the Effect of Alendronate , Teriparatide and onion on Steroid-induced Femoral Head Trabecular Architecture Using Animal Model." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/68647944338246610326.
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Chen, Yen-Ni, and 陳燕妮. "Studies on the Contribution of Flavor Precursors to the Flavor Formation of Thermally Processed Shallot and Welsh Onion by Model Reactions." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/02791746497325119194.
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碩士大葉工學院
食品工程研究所
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Shallot (Allium cepa L. Var. aggregalum) and welsh onion (Allium fistulosumL.) are two important flavoring vegetables used in a wide range of Chinesefoods. nonvolatile flavor precursors, i.e., S-alk(en)yl-L-cysteine sulfoxides,have been found in the intact cells of shallot and welsh onion. After thephysically break down of the shallot clove or welsh onion tissue, some of theseprecursors can be transformed enzymatically to the primary flavor compounds withthe pungent odor. These primary flavor compounds, which are mainlythiosulfinates, thiosulfinates can further break down or transform to othersulfur-containing volatile compounds. Most of the researches on Allium flavorbefore have only been focused on the enzymatic flavor formation. Only a fewresearches focused on the probable contribution of the amino-typesulfur-containing nonvolatile flavor precursors of Allium to the flavor ofthermally processed Allium plants through the thermal degradation or thermalinteractions of these precursors with ot her components in the Allium species. In this study, the potential contributions of nonvolatile flavor precursorsof shallot and welsh onion to the flavor of thermally processed shallot andwelsh onion were therefore studied. This thesis included four parts: (1) Volatile compounds of fried blanchedshallot and fried shallot slices were isolated by using instantaneousLikens-Nickerson steam distillation/ dichloromethane extraction method. Theextracts were further fractionated into four fractions by using acid/ basefractionation method. After being concentrated, the isolates were applied to GCand GC-MS analysis. (2) volatile compounds of shallot, baked shallot, friedshallot, blanched shallot, baked blanched shallot, and fried blanched shallotwere isolated, concentrated, and analyzed by using the same method as that shownin (1). (3) Wesh onion tissue was divided into two parts, i.e., green leaf andwhite sheath. Volatile compounds of green leave and white sheath, baked greenleaf and white sheath, fried green leaf and white sheath, baked blanched greenleave and white sheath, and fried blanched green leave and white sheath wereisolated, concentrated, and analyzed by using the same method as that shown in(1). (4) Six nonvolatile sulfur-containing flavor precursors, they are,S-methyl-L-cysteine (MeCy), S-propyl-L-cysteine (PrCy), S-1-propenyl-L-cysteine(PrenCy), and the sulfoxides of these three cysteine derivatives (MeCySO, PrCySOand PrenCySO) were purchased or synthesized. The aqueous solutions of these sixprecursors were mixed with or without glucose, and then heated at 170 ℃ in aclosed stainless reaction container for 1 hr. The volatile compounds generatedwere isolated, concentrated, and analyzed by using the same me thod as thatshown in (1). Here were some important conclusions for this study: 1. The fried shallot sample with the best overall acceptance was that friedin initial oil temperature 200 ℃ and final oil temperature 170 ℃. 2. From the fact that only small amount of volatile compounds were generatedin the blanched shallot and blanched welsh onion, whereas abundance volatilecompounds were generated in unblanched, fried, and baked shallot and welshonion, it showed that blanched treatment could deactive the activity of flavorenzymes and stop the enzymic formation of volatile compounds from the precursorsin shallot and welsh onion. 3. From the fact that the yield of volatile compounds in fried blanched orbaked blanched shallot was higher than that in fried or baked shallot, and theyield of volatile compounds in fried blanched or baked blanched welsh onion wasvery close to that in fried welsh onion or baked welsh onion, the importance ofthe nonvolatile flavor precursors to the flavor of thermally processed shallotor welsh onion was then proved. 4. The volatile compounds isolated from shallot can be divided into (1)those probably generated from the thermal degradation of sulfur-containingnonvolatile flavor precursors; (2) those probably generated from thermaldegradation of lipids; (3) those probably generated from thermal degradation ofsugars; (4) those probably generated from Maillard reactions; and (5) thoseprobably generated from uncertain sources.The contributions of the flavor precursors of shallot to the flavor or thermally processed shallot were found both through the thermal degradation of these precursors and the Maillard type interactions of these precursors with others sugars in shallot. Whereas, he contributions of the flavor precursors of welsh onion to the flavor of thermally processed welsh onion were found to be mainly through the thermal degradation of these precursors. 5. The major sulfur-containing volatile compounds degraded from thenonvolatile sulfur-containing flavor precursors of shallot during frying orbaking treatment were the sulfur-containing volatile compounds carried themethyl and propyl group. Whereas, the major sulfur- containing volatile compoundsdegraded from the nonvolatile sulfur-containing flavor precursors of welsh onionduring frying or baking treatment were the sulfur-containing volatile compoundscarried the methyl and 1-propenyl group. 6. The IR spectrum analysis of the synthesized flavor precursors confirmedthe authencity of these compounds. The TLC analysis of the synthesizedprecursors showed that they had very high purity. 7. The major volatile compounds generated in the MeCy and MeCySO systemswere monosulfides and disulfides. 8. The major volatile compounds generated in the PrCy and PrCySO systemswere disulfides and trisulfides. 9. The major volatile compounds generated in the PrenCy and PrenCySO systemswere thiophenes and thiazoles.
Book chapters on the topic "Onion model"
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Maizels, Linda. "The Onion Model." In What is Antisemitism?, 25–33. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003021827-3.
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Feigenbaum, Joan, Aaron Johnson, and Paul Syverson. "A Model of Onion Routing with Provable Anonymity." In Financial Cryptography and Data Security, 57–71. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-77366-5_9.
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Sans, Thierry, Frédéric Cuppens, and Nora Cuppens-Boulahia. "OPA: Onion Policy Administration Model — Another approach to manage rights in DRM." In New Approaches for Security, Privacy and Trust in Complex Environments, 349–60. Boston, MA: Springer US, 2007. http://dx.doi.org/10.1007/978-0-387-72367-9_30.
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Guo, Zhi, Pei-Luen Patrick Rau, and Rüdiger Heimgärtner. "The “Onion Model of Human Factors”: A Theoretical Framework for Cross-Cultural Design." In Culture and Computing, 20–33. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05434-1_2.
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Leisering, Lutz. "Social Protection in the Global South: An Ideational and Historical Approach." In One Hundred Years of Social Protection, 3–52. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-54959-6_1.
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AbstractThis chapter is the introduction to the volume on social protection in Brazil, India, China, and South Africa. The Introduction outlines an ideational and historical approach to social protection in the Global South to contribute to a theory of “social policy in development contexts”, which is a desideratum. The Introduction also provides basic data on the four countries (Brazil, India, China, and South Africa) and summaries of all the chapters in the book. Three research gaps are identified: scarcity of historical research; scant attention to ideas and instead a dominant focus on interests; and insufficient use of historical sources. This volume contributes to filling these gaps through a historical, idea-centred, and source-based approach. A multi-layered model of social ideas—the “onion skin model”—is developed that has the “social question” as its pivot.
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Hu, Aiqun. "The Early Rise of Social Security in China: Ideas and Reforms, 1911–1949." In One Hundred Years of Social Protection, 55–90. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-54959-6_2.
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AbstractApplying the editor’s “onion skin model” of social policy ideas, this chapter analyses the early rise of social security ideas and policies in Republican China (1911–1949). Facing imperialism, Chinese elites turned to Western social ideas to “save the nation”. They accepted organic concepts of society, leading to a concern for societal stability and harmony. The Guomindang (GMD) state reinforced this trend in the 1930s when the party-state incorporated Confucianism into its ideology. The GMD state, thus, adopted collectivist notions of social policy, emphasising class harmonisation and productivism. During the Sino-Japanese war, Chinese elites were attracted to the idea of universal social security, which led to an intense development of social security policies. In the entire process, however, Chinese elites emphasised China’s special situation.
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Gierens, Klaus M. "Interpretation of Low J 12CO and 13CO Observations of Orion a By Means of an Onion Shell Radiative Transfer Model." In Fragmentation of Molecular Clouds and Star Formation, 413–14. Dordrecht: Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3384-5_52.
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Chynoweth, R. W., R. M. Beresford, W. R. Henshall, and P. J. Wright. "Use of Disease Forecasting Models for Control of Onion Downy Mildew in New Zealand." In Advances in Downy Mildew Research — Volume 2, 91–97. Dordrecht: Springer Netherlands, 2004. http://dx.doi.org/10.1007/978-1-4020-2658-4_5.
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Cho, Wanhyun, Junki Kim, Myung-Hwan Na, Sangkyoon Kim, and Hyejin Lee. "Estimation of Weights in Growth Stages of Onions Using Statistical Regression Models and Deep Learning Algorithm." In Advances in Computer Science and Ubiquitous Computing, 159–65. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9343-7_22.
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Pierce, Naomi E. "Peeling the Onion:." In Model Systems in Behavioral Ecology, 41–56. Princeton University Press, 2019. http://dx.doi.org/10.2307/j.ctvs32sm4.7.
Full textConference papers on the topic "Onion model"
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Yilmaz, Aysegul. "Semi-Onion Model for Hall Thruster's." In 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-6078.
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Alashoor, Tawfiq, Richard Baskerville, and Ruilin Zhu. "Privacy and Identity Theft Recovery Planning: An Onion Skin Model." In 2016 49th Hawaii International Conference on System Sciences (HICSS). IEEE, 2016. http://dx.doi.org/10.1109/hicss.2016.461.
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Feigenbaum, Joan, Aaron Johnson, and Paul Syverson. "Probabilistic analysis of onion routing in a black-box model." In the 2007 ACM workshop. New York, New York, USA: ACM Press, 2007. http://dx.doi.org/10.1145/1314333.1314335.
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Khobragade, Anish, Ganesh Landge, Jayant Kalani, and Akash Patil. "Tracing Rumor Source in Large Scale Social Network Using Onion Model." In 2019 5th International Conference On Computing, Communication, Control And Automation (ICCUBEA). IEEE, 2019. http://dx.doi.org/10.1109/iccubea47591.2019.9128548.
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P.P.Sutar and Suresh Prasad. "Fluidized Bed Drying of Osmotically Dehydrated Onion Slices and Selection of Suitable Drying Model." In 2005 Tampa, FL July 17-20, 2005. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2005. http://dx.doi.org/10.13031/2013.19593.
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Li, Zhiliang, Xiang Long, and Olusegun J. Ilegbusi. "A Novel Multi-Layer Poro-Elastic Model of Lung Deformation." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62250.
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This paper presents a novel method to simulate flow and deformation of the lung. The lung is assumed to behave as a poro-elastic medium with heterogeneous elastic property. The method uses a flow-structure interaction technique to simultaneously model flow within the airway and deformation of the lung lobes. The 3D lung geometry is reproduced from 4D CT scan dataset obtained on real human subjects at a Cancer Center. The non-linear Young’s modulus is estimated in a parallel study based on similar CT scan dataset. The novelty of the present technique lies in the use of onion-layer grid with distributed spatial permeability. It allows prediction of the spatial lung displacement that could be used for tracking lung tumor during radiotherapy.
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Lin, Chen. "Cultivation of Chinese Undergraduates Academic Morality in Examinations Based on Weighted Analysis of Onion Model." In 2021 2nd International Conference on Artificial Intelligence and Education (ICAIE). IEEE, 2021. http://dx.doi.org/10.1109/icaie53562.2021.00082.
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Wang, Xiaoping. "Research on Evaluation Index System of College Engineering Talents in Emerging Engineering Based on Onion Model." In Proceedings of the 2019 3rd International Conference on Economic Development and Education Management (ICEDEM 2019). Paris, France: Atlantis Press, 2019. http://dx.doi.org/10.2991/icedem-19.2019.20.
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Wassmer, Dominik, Felix Pause, Bruno Schuermans, Christian Oliver Paschereit, and Jonas P. Moeck. "An Onion Peeling Reconstruction of the Spatial Characteristics of Entropy Waves in a Model Gas Turbine Combustor." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-64717.
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Entropy noise affects thermoacoustic stability in lean pre-mixed gas turbine combustion chambers. It is defined as acoustic noise that is emitted at the first turbine stage due to the acceleration of entropy waves that are advected from the reaction zone in the combustor to the turbine inlet. These non-isentropic temperature waves are caused by equivalence ratio fluctuations which are inherently present in a technically premixed combustion system. To experimentally study the generation and transport of entropy waves, an estimation of the spatial distribution of the entropy spots is highly valuable as it allows the accurate determination of the cross-section averaged entropy, which is the relevant quantity for the formation mechanism of entropy noise at the turbine stage. In this work, a time-of-flight based temperature measurement method is applied to a circular combustion test rig equipped with a premixed swirl-stabilized combustor. Downstream of the burner, an electric spark discharge is employed to generate a narrow acoustic pulse which is detected with a circumferentially arranged microphone array. The measured time of flight of the acoustic signal corresponds to the line-integrated inverse of the speed of sound between the acoustic source and each microphone. By modulating a share of the injected gaseous fuel, equivalence ratio fluctuations are generated upstream of the reaction zone and consequently entropy spots are advected through the axial measurement plane. The spark discharge is triggered at distinct phase angles of the entropy oscillation, thus allowing a time resolved-analysis of the thermo-acoustic phenomenon. Estimating the spatial temperature distribution from the measured line integrated inverse speed of sounds requires tomographic reconstruction. A Tikhonov regularized Onion Peeling is employed to deduce radial temperature profiles. To increase the number of independent data, the spark location is radially traversed, which enhances the resolution of the reconstructed temperature field. A phantom study is conducted, which allows the assessment of the capabilities of the reconstruction algorithm. By means of the reconstructed radial entropy field, spatially resolved entropy waves are measured and their amplitudes and phases are extracted. The characteristics of the entropy waves measured in this way correspond well to former studies.
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T. G. Giorges, Aklilu, and Doug Britton. "Modeling and Simulation of the Cooling and Heating Processes of Onions." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11428.
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Abstract The shelf life of onions, or for that matter any food item, is defined as the time period where the produce has an acceptable quality and is safe to consume. For onion farmers and packers, the mode of determining the shelf life depends on the harvesting, drying, grading, packing, cooling, storing, and shipping processes and time. Quality loss can lead to economic loss as well as a decline in consumer confidence. Quality expectation should be maintained at an acceptable level for consumer purchase and consumption. In addition to post-harvest handling, the thermal history of the produce during storage and transportation plays a major part of shelf life and quality management. Due to the differences among onion varieties, some are more susceptible than others to damage resulting from temperature, high humidity, and other factors during processing. In general, the recommended storage temperatures range from 0 to 5 °C during cold storage and 20 to 30 °C during non-refrigerated storage. Both storage methods should have adequate air circulation of about 0.5 to 1.0 m3 of air per minute per 1.0 cubic meter of onions to maintain the temperature and prevent CO2 accumulation. In this study, the cooling and heating processes of different sizes of onions were conducted experimentally and numerically, and temperature readings were recorded. The cooling process was designed to simulate actual industry practice where cooling starts after the onions are placed in a cold storage room where the temperature is not constant. For the heating process, the experiment simulated industry practice where cold onions are transferred into a warm storage room where the temperature is uniform. These thermal environments are a common encounter during the storage and shipping of produce. Initially, the cooling and heating data were experimentally examined and used to estimate the cooling time as well as the cooling rate to gain an understanding of the heat transfer process. Furthermore, the data were used in evaluating the numerical simulation. In the case of small onions, the temperature changed from 21.1 to 4.4 °C after three and a half hours. However, in the case of large onions, a similar temperature change took nearly eight hours. The numerical simulation was conducted using 3D models and the thermal properties of the onions. This paper will discuss the experimental data and the CFD modeling and simulation. Based on this study, the thermal environment and critical time period that could cause changes in produce core temperature can be outlined and used to qualify thermal mishandling.
Reports on the topic "Onion model"
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Johnson, Aaron. A Model of Onion Routing With Provable Anonymity. Fort Belvoir, VA: Defense Technical Information Center, August 2006. http://dx.doi.org/10.21236/ada459411.
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Dudley, Lynn M., Uri Shani, and Moshe Shenker. Modeling Plant Response to Deficit Irrigation with Saline Water: Separating the Effects of Water and Salt Stress in the Root Uptake Function. United States Department of Agriculture, March 2003. http://dx.doi.org/10.32747/2003.7586468.bard.
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Standard salinity management theory, derived from blending thermodynamic and semi- empirical considerations leads to an erroneous perception regarding compensative interaction among salinity stress factors. The current approach treats matric and osmotic components of soil water potential separately and then combines their effects to compute overall response. With deficit water a severe yield decrease is expected under high salinity, yet little or no reduction is predicted for excess irrigation, irrespective of salinity level. Similarly, considerations of competition between chloride and nitrate ions have lead to compensation hypothesis and to application of excess nitrate under saline conditions. The premise of compensative interaction of growth factors behind present practices (that an increase in water application alleviates salinity stress) may result in collateral environmental damage. Over-irrigation resulting in salinization and elevated ground water threatens productivity on a global scale. Other repercussions include excessive application of nitrate to compensate for salinity, unwillingness to practice deficit irrigation with saline water, and under-utilization of marginal water. The objectives for the project were as follows: 1) To develop a database for model parameterization and validation by studying yield and transpiration response to water availability, excessive salinity and salt composition. 2) To modify the root sink terms of an existing mechanism-based model(s) of water flow, transpiration, crop yield, salt transport, and salt chemistry. 3) To develop conceptual and quantitative models of ion uptake that considers the soil solution concentration and composition. 4) To develop a conceptual and quantitative models of effects of NaCl and boron accumulation on yield and transpiration. 5) To add a user interface to the water flow, transpiration, crop yield, salt transport, chemistry model to make it easy for others to use. We conducted experiments in field plots and lysimeters to study biomass production and transpiration of com (Zeamays cv. Jubilee), melon (Cucumismelo subsp. melo cv. Galia), tomato (Lycopersiconesculentum Mill. cv. 5656), onion (Alliumcepa L. cv. HA 944), and date palms (Phoenix Dactylifera L. cv. Medjool) under salinity combined with water or with nitrate (growth promoters) or with boron (growth inhibitor). All factors ranged from levels not limiting to plant function to severe inhibition. For cases of combined salinity with water stress, or excess boron, we observed neither additive nor compensative effects on plant yield and transpiration. In fact, yield and transpiration at each combination of the various factors were primarily controlled by one of them, the most limiting factor to plant activity. We proposed a crop production model of the form Yr = min{gi(xi), where Yr = Yi ym-1 is relative yield,Ym is the maximum yield obtained in each experiment, Xi is an environmental factor, gi is a piecewise-linear response function, Yi is yield of a particular treatment. We selected a piecewise-linear approach because it highlights the irrigation level where the response to one factor ceases and a second factor begins. The production functions generate response "envelopes" containing possible yields with diagonal lines represent response to Xi alone and the lines parallel to the X-axis represent response to salinity alone. A multiplicative model was also derived approximating the limiting behaviour for incorporation in a hydrochemical model. The multiplicative model was selected because the response function was required to be continuous. The hydrochemical model was a better predictor of field-measured water content and salt profiles than models based on an additive and compensative model of crop response to salinity and water stress.