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1
Sengupta, Rajarshi, Lynn M. Walker, and Aditya S. Khair. "The role of surface charge convection in the electrohydrodynamics and breakup of prolate drops." Journal of Fluid Mechanics 833 (November 2, 2017): 29–53. http://dx.doi.org/10.1017/jfm.2017.628.
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The deformation of a weakly conducting, ‘leaky dielectric’, drop in a density matched, immiscible weakly conducting medium under a uniform direct current (DC) electric field is quantified computationally. We exclusively consider prolate drops, for which the drop elongates in the direction of the applied field. Furthermore, for the majority of this study, we assume the drop and medium to have equal viscosities. Using axisymmetric boundary integral computations, we delineate drop deformation and breakup regimes in the $Ca_{E}-Re_{E}$ parameter space, where $Ca_{E}$ is the electric capillary number (ratio of the electric to capillary stresses); and $Re_{E}$ is the electric Reynolds number (ratio of charge relaxation to flow time scales), which characterizes the strength of surface charge convection along the interface. For so-called ‘prolate A’ drops, where the surface charge is convected towards the ‘poles’ of the drop, we demonstrate that increasing $Re_{E}$ reduces the critical capillary number for breakup. Moreover, surface charge convection is the cause of an abrupt transition in the breakup mode of a drop from end pinching, where the drop elongates and develops bulbs at its ends that eventually detach, to a breakup mode characterized by the formation of conical ends. On the contrary, the deformation of ‘prolate B’ drops, where the surface charge is convected away from the poles, is essentially unaffected by the magnitude of $Re_{E}$.
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Cheng, Yuepeng, and Bo Li. "Analysis of Green Innovation of the E-Tailer and Supplier with a Drop Shipping Option in E-Commerce." Journal of Theoretical and Applied Electronic Commerce Research 19, no. 1 (2023): 20–39. http://dx.doi.org/10.3390/jtaer19010002.
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As customer demand for green products increases in the digital economic era, this study analyses the green innovation of the e-tailer and supplier in drop shipping models. Moreover, drop shipping e-tailers and suppliers with a drop shipping option need to make choices regarding whether to provide green or normal products to the market. When a supplier with a drop shipping option produces green products, more fees may be invested in the production of green products than on normal products. The drop shipping e-tailers and suppliers with a drop shipping option can also choose to sell normal products at a low cost, as before. This study designs four models of drop shipping e-tailers and suppliers with a drop shipping option under different choices, analyzes their operational process in drop shipping models, and investigates five theorems. The optimal pricing decisions and green degree of drop shipping e-tailers and suppliers with a drop shipping option were evaluated in this study. The impacts of the green innovation factor, green elasticity coefficient, manufacturing and distribution costs on the drop shipping e-tailers and suppliers with a drop shipping option, and the effect of other environmental parameters on the green degree of green products are also analyzed through computer simulation. The findings of the simulation analysis provide valuable guidance for e-tailers and suppliers with green innovation in drop shipping models and offer important academic and practical implications for e-commerce and the digital economy.
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Rashid, Sulma, Qaisar Ayub, M. Soperi Mohd Zahid, and A. Hanan Abdullah. "E DROP An Effective Drop Buffer Management Policy for DTN Routing Protocols." International Journal of Computer Applications 13, no. 7 (2011): 8–13. http://dx.doi.org/10.5120/1795-2486.
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Miljenović, Dejan, and Bono Beriša. "Pandemics trends in E-commerce." Pomorstvo 36, no. 1 (2022): 31–43. http://dx.doi.org/10.31217/p.36.1.4.
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Drop shipping represents a delivery business model based on e-commerce logistics, which is very relevant in the global pandemic crisis. In this model, buyers order products and services directly from the manufacturer over the Internet through the intermediary of a drop shipper who ensures the easiest and fastest delivery. Drop shipper is a type of e-commerce entrepreneur that offers goods using online logistics infrastructure to ensure direct physical delivery from the manufacturer to the retailer or customer. This includes drop shipping as a business model to Industry 4.0 (i.e. the digital economy). This paper elaborates how a particular e-commerce model affects the development and improvement of global supply chains. Aim of this paper is to research how entrepreneur can lower its costs along drop shipping supply chain by managing inventory ratios or cost of stock. This enables drop shipping to greatly facilitate market access for cash-strapped entrepreneurs. We also conducted a simulation of optimized drop shipping process to show that there is a constant adaptability for entrepreneurs using drop shipping, especially among small and medium enterprises (SMEs). The timeliness of drop shipping is that it has facilitated as a global delivery solution in relation to the coronavirus disease pandemic (COVID-19). Moreover, drop shipping is based on a Activity-Based Costing (ABC model) whose quantitative efficiency has been proven by scientific analysis and research results. Finally, the legal aspects of drop shipping are given importance in the situation of COVID-19 which had a crucial impact on international trade in 2020, especially in predicting short-term trade trends. Due to this within this paper we also examined the effects of the ˝coronavirus˝ on global e-commerce. Global drop shipping data ensures qualitative predictions considering pandemic environment, social distancing issues and internet trade curves which are more than useful in today’s changing business conditions.
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Balestra, Francesca, Claudia Zaccaria, and Laura Fruggeri. "Drop-out e alleanza terapeutica: un'analisi processuale." TERAPIA FAMILIARE, no. 127 (February 2022): 85–106. http://dx.doi.org/10.3280/tf2021-127006.
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Il presente studio si propone di analizzare il rapporto tra alleanza terapeutica e drop-out allo scopo di esaminare quali fattori nel contesto delle sedute terapeutiche possano essere associati all'interruzione precoce della terapia da parte dei clienti. Cinque processi terapeutici con esiti diversi, per un totale di 24 sedute, sono stati analizzati attraverso una metodologia mista che ha previsto una prima analisi descrittiva con lo strumento SOFTA seguita da una analisi clinica-costruzionista-dialogica. I risultati evidenziano un andamento fluttuante sia nei processi terapeutici conclusi, che nei drop-out e mettono in luce i fattori in-session legati alle rotture e alle mancate riparazioni dell'alleanza.
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Favelukis, Moshe. "Non-Newtonian slender drops in a nonlinear extensional flow." Journal of Fluid Mechanics 877 (August 27, 2019): 561–81. http://dx.doi.org/10.1017/jfm.2019.626.
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In this theoretical report we explore the deformation and stability of a power-law non-Newtonian slender drop embedded in a Newtonian liquid undergoing a nonlinear extensional creeping flow. The dimensionless parameters describing this problem are: the capillary number $(Ca\gg 1)$, the viscosity ratio $(\unicode[STIX]{x1D706}\ll 1)$, the power-law index $(n)$ and the nonlinear intensity of the flow $(|E|\ll 1)$. Asymptotic analytical solutions were obtained near the centre and close to the end of the drop suggesting that only Newtonian and shear thinning drops $(n\leqslant 1)$ with pointed ends are possible. We described the shape of the drop as a series expansion about the centre of the drop, and performed a stability analysis in order to distinguish between stable and unstable stationary states and to establish the breakup point. Our findings suggest: (i) shear thinning drops are less elongated than Newtonian drops, (ii) as non-Newtonian effects increase or as $n$ decreases, breakup becomes more difficult, and (iii) as the flow becomes more nonlinear, breakup is facilitated.
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Niu, Shengjie, Xingcan Jia, Jianren Sang, Xiaoli Liu, Chunsong Lu, and Yangang Liu. "Distributions of Raindrop Sizes and Fall Velocities in a Semiarid Plateau Climate: Convective versus Stratiform Rains." Journal of Applied Meteorology and Climatology 49, no. 4 (2010): 632–45. http://dx.doi.org/10.1175/2009jamc2208.1.
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Abstract Joint size and fall velocity distributions of raindrops were measured with a Particle Size and Velocity (PARSIVEL) precipitation particle disdrometer in a field experiment conducted during July and August 2007 at a semiarid continental site located in Guyuan, Ningxia Province, China (36°N, 106°16′E). Data from both stratiform and convective clouds are analyzed. Comparison of the observed raindrop size distributions shows that the increase of convective rain rates arises from the increases of both drop concentration and drop diameter while the increase of the rain rate in the stratiform clouds is mainly due to the increase of median and large drop concentration. Another striking contrast between the stratiform and convective rains is that the size distributions from the stratiform (convective) rains tend to narrow (broaden) with increasing rain rates. Statistical analysis of the distribution pattern shows that the observed size distributions from both rain types can be well described by the gamma distribution. Examination of the raindrop fall velocity reveals that the difference in air density leads to a systematic change in the drop fall velocity while organized air motions (updrafts and downdrafts), turbulence, drop breakup, and coalescence likely cause the large spread of drop fall velocity, along with additional systematic deviation from terminal velocity at certain raindrop diameters. Small (large) drops tend to have superterminal (subterminal) velocities statistically, with the positive deviation from the terminal velocity of small drops being much larger than the negative deviation of large drops.
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Menaouer, Brahami, Semaoune Khalissa, Mohammed El Amine Belayachi, and Benslimane Amine. "The Role of Drop Shipping in E-Commerce." International Journal of E-Business Research 17, no. 4 (2021): 54–72. http://dx.doi.org/10.4018/ijebr.2021100104.
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During the recent years, e-commerce has been constantly growing in various industrial sectors. E-commerce has also changed the buying pattern of customers. E-commerce is a concept that has gained enormous popularity in recent decades. There are a multitude of variants and strategies of e-commerce such as drop shipping, which is renowned for its low cost and high efficiency. However, e-commerce is a new technology that is growing rapidly. It has the ability to create a truly global digital economy. In this research paper, the authors study the state of the drop shipping market for e-commerce in Algeria and the possibility to introduce new models by analyzing different aspects that can have a huge impact on the evolution of drop shipping in e-commerce in order to promote economic development in Algeria. To develop a better understanding, an exploratory study via a structured questionnaire intended for the general Algerian public drop shipper market was carried out.
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Bilsing, Clemens, Lars Büttner, Andreas Metzmacher, Uwe Janoske, Jürgen Czarske, and Sebastian Burgmann. "Analysis of the Flow Structure inside an Oscillating Sessile Drops in a Shear Flow Using Double-Helix 3D Particle Tracking Velocimetry and Adaptive Optics." Proceedings of the International Symposium on the Application of Laser and Imaging Techniques to Fluid Mechanics 21 (July 8, 2024): 1–11. http://dx.doi.org/10.55037/lxlaser.21st.36.
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The motion and particularly the detachment mechanism of sessile drops in an air-shear-flow is highly relevant for many technical applications. For instance, water drops in fuel cells can block the oxygen transport and thus lower the overall efficiency. Hence, a deeper understanding of the drop detachment mechanism could facilitate efficiency optimisations. Nonetheless, until now only simplified models exist for predicting the critical velocity that do not take into account the mutual interaction of the air and the liquid via the non-rigid interface. One reason for this is the lack of knowledge of the flow inside the oscillating drop. In this contribution, we present the first three-dimensional flow measurements in oscillating sessile drops in shear flow. Time-averaged flow measurements were conducted for different Reynolds numbers. Furthermore, the phase-averaged flow field was measured. The measurements were conducted with a novel 3D-PTV method, which offers scanless three-dimensional flow measurements with a single optical access for a measurement volume that covers about 90 % of the drop volume. Moreover, we present a novel technique for conducting flow measurements through fluctuating gas-liquid interfaces based on adaptive optics. We demonstrate that this technique enables the correction of a systematic error corresponding to the magnitude of the first drop eigenfrequency, which seems to play an important role in the detachment mechanism of drops. The results give new insights about the fluid mechanics of sessile drops and thus may help in the optimisation of drop removal in e. g. fuel cells.
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Werner, Matthias. "„Drop the ‚E'“ – Von E-Government-Kontinuitäten und weiterhin nötigen Korrekturen." TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis 15, no. 1 (2006): 89–93. http://dx.doi.org/10.14512/tatup.15.1.89.
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Guo, Lei, Yongqing Duan, Weiwei Deng, Yin Guan, YongAn Huang, and Zhouping Yin. "Charged Satellite Drop Avoidance in Electrohydrodynamic Dripping." Micromachines 10, no. 3 (2019): 172. http://dx.doi.org/10.3390/mi10030172.
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The quality of electrohydrodynamic jet (e-jet) printing is crucially influenced by the satellite drop formed when the primary drop detaches from the meniscus. If the satellite drop falls onto the substrate, the patterns on the substrate will be contaminated. The electric charge carried by the satellite drop leads to more complex satellite/meniscus interaction than that in traditional inkjet printing. Here, we numerically study the formation and flight behavior of the charged satellite drop. This paper discovered that the charge relaxation time (CRT) of the liquid determines the electric repulsion force between the satellite drop and meniscus. The satellite drop will merge with the meniscus at long CRT, and fail to merge and deteriorate the printing quality at short CRT. The simulations are adopted to discover the mechanism of generation and flight behavior of charged satellite drops. The results show that the critical CRT decreases with the dielectric constant of the liquid and the supplied flow rate. Namely, for small dielectric constant and fixed CRT, the satellite drop is less likely to merge with the meniscus, and for high flow rate, the satellite drop is prone to merge with the meniscus due to the delay of necking thread breakup. These results will help to choose appropriate parameters to avoid the satellite drop from falling onto the substrate.
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Linkova, А. М., A. A. Mogyla, H. O. Rudnev, V. M. Kantsedal, and S. I. Khomenko. "VALIDATION OF REMOTE MEASUREMENT OF RAIN CHARACTERISTICS BY THE METHOD OF DOUBLE FREQUENCY RADAR SENSING." Radio Physics and Radio Astronomy 27, no. 1 (2022): 38–47. http://dx.doi.org/10.15407/rpra27.01.038.
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Subject and Purpose. Th e development of radar methods for measuring liquid-drop precipitation characteristics is of great importance for studying physical processes in the atmosphere and for lots of applied problems to be solved. At the same time, an experimental research of these methods in situ is essential to determine their frames and scope and estimate retrieval errors of the rain parameters. The purpose of the work is to evaluate eff ectiveness of the previously proposed method that is based on the parametrization of the distribution function of drops by size, uses averaged touch-probing data of the three-parameter gamma distribution of the parameters versus the rain intensity, and employs the double-frequency method of precipitation remote sensing. For its validation, the rain intensity results obtained by the radar sensing are compared with the data taken from the ground raingauge. Methods and Methodology. Th e measurement results gained by the proposed method are compared with the measurement results obtained by the standard technique. Results. An experimental study using the previously developed algorithm and with a refi ned double-frequency weather radar MRL-1 has been given to the double-frequency sensing of liquid-drop precipitation. Th e obtained results show that the proposed data processing algorithm for double-frequency sensing of liquid-drop precipitation is good at the rain intensity retrieval and makes it possible to estimate liquid precipitation amounts over long periods of time. Conclusion. Th e rain intensity measured with the use of meteo radar almost completely coincides, both qualitatively and quantitatively, with the data from the ground raingauge. Th e algorithm proposed by the authors for processing double-frequency radar sensing data on liquid-drop precipitation retrieves the rain intensity and, also, evaluates liquid-drop precipitation amounts.
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Marchetti, Paulo Henrique, Thaís Tomaz dos Santos, Enrico Gori Soares, et al. "Técnicas de aterrissagem afetam o desempenho e estresse mecânico durante Drop Jump." Revista Brasileira de Medicina do Esporte 23, no. 3 (2017): 176–79. http://dx.doi.org/10.1590/1517-869220172303158272.
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RESUMO Introdução: O drop jump é utilizado para melhorar da potência dos membros inferiores. Mantendo-se a altura de queda constante, a variação da técnica de aterrissagem pode alterar o desempenho e as características mecânicas do salto. Objetivo: Avaliar os efeitos da alteração da técnica de aterrisagem no desempenho e na força de reação do componente vertical do solo após drop jump. Métodos: Vinte e cinco homens saudáveis e fisicamente ativos (idade: 26±8 anos, massa corporal total: 75±10 kg, altura: 175±10 cm) realizaram quatro técnicas de aterrisagem após o drop jump: bounce drop jump (BDJ), drop jump com 90° de flexão do joelho (DJ90), drop jump com 135° de flexão do joelho (DJ135) e drop jump com 135° de flexão do joelho e com apoio das mãos no solo (DJ135A). Foram realizadas três tentativas para cada técnica, os sujeitos realizaram o drop jump caindo de uma plataforma de força de 40 cm de altura. As medidas de altura de salto, tempo de contato e impacto foram determinadas através da força de reação do componente vertical do solo, medida pela plataforma de força, em frequência de aquisição de 2.000 Hz. A ANOVA com medidas repetidas foi utilizada para comparar as diferentes técnicas. Resultados: A técnica BDJ apresentou menor altura de salto, menor tempo de contato e maior impacto que as demais condições (P < 0,001). A técnica DJ90 apresentou altura de salto similar às condições DJ135 e DJ135A e tempo de contato menor que as condições DJ135 e DJ135A, além de menor impacto que as demais condições (P < 0,001). Conclusão: As maiores alturas do salto vertical foram observadas para DJ90, DJ135 e DJ135A. O menor tempo de contato foi observado na técnica BDJ, seguido de DJ90. Quanto ao impacto, a técnica BDJ apresentou os maiores valores.
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Vijay, Kumar Samyal. "A Comparative Study of Buffer Management Strategies for Epidemic Routing Protocols in DTN." RESEARCH REVIEW International Journal of Multidisciplinary 4, no. 2 (2019): 64–67. https://doi.org/10.5281/zenodo.2561610.
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The intermittent network in which end to end path is not exist between source and destination node, large delay in the message with high data errors and asymmetric data rates are called Delay Tolerant Networks (DTNs). In such type of network Store-Carry and Forwarding (SCF) approach is used to send message between source and destination. Each node in network has limited buffer space to store message. The message is discards or dropped from the buffer space when it is full. To discover which message is discards form the buffer space a number of buffer management strategies are developed by the researcher such as the first in first out (FIFO), Drop oldest, Drop large, Drop last, Drop Random (DR), Drop Least Recently Received (DLR), Evict most forward first (MOFO) and E-drop drop strategies etc. In this paper DLR, MOFO and E-Drop buffer strategies performances are evaluated on Epidemic routing protocol.
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Zrnić, D., P. Berglez, and G. Brenn. "Weakly nonlinear shape oscillations of a Newtonian drop." Physics of Fluids 34, no. 4 (2022): 043103. http://dx.doi.org/10.1063/5.0085070.
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Nonlinear axisymmetric shape oscillations of a Newtonian drop in a vacuum are investigated theoretically, for fundamental interest and for their relevance in transport processes across the drop surface. The weakly nonlinear analysis is carried out for, but not limited to, the modes of initial drop deformation up to m = 4. The drop Ohnesorge number covers the range between 0.01 and 1. The weakly nonlinear approach, which is carried to third order, accounts for the coupling of different oscillation modes. With increasing surface deformation, the oscillations develop an asymmetry of the times during one period the drop spends in different states of deformation, a frequency decrease below the linear value, and quasi-periodicity of the motion. In contrast to the inviscid case [D. Zrnić and G. Brenn, “Weakly nonlinear shape oscillations of inviscid drops,” J. Fluid Mech. 923, A9 (2021)], the present analysis reveals the frequency decrease and the quasi-periodicity already in the second-order approximation. The results are positively validated against relevant literature. The theory quantifies the effects of viscosity, measured by the drop Ohnesorge number, dampening the nonlinear behavior and enhancing the coupling of different oscillation modes [E. Becker et al., “Nonlinear dynamics of viscous droplets,” J. Fluid Mech. 258, 191 (1994)]. The present theory reveals the quasi-periodicity of nonlinear viscous drop shape oscillations at strong deformation. The resultant drop motion, starting from a higher-order mode of initial deformation, for which the drop exhibits aperiodic linear behavior, may turn into damped oscillatory with ongoing time due to the coupling to lower-order modes.
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Karageorgis, Andreas, George Hinopoulos, and Man-Hoe Kim. "A Comparative Study on the Condensation Heat Transfer of R-513A as an Alternative to R-134a." Machines 9, no. 6 (2021): 114. http://dx.doi.org/10.3390/machines9060114.
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This paper presents the two-phase condensation heat transfer and pressure drop characteristics of R-513A as an alternative refrigerant to R-134a in a 9.52-mm OD horizontal microfin copper tube. The test facility had a straight, horizontal test section with an active length of 2.0 m and was cooled by cold water circulated in a surrounding annular space. The annular-side heat transfer coefficients were obtained using the Wilson plot method. The average heat transfer coefficient and pressure drop data are presented at the condensation temperature of 35 °C in the range of 100–440 kg·m−2·s−1 mass flux. The test data of R-513A are compared with those of R-134a, R-1234yf, and R-1234ze(E). The average condensation heat transfer coefficients of the R-513A and R-1234ze(E) refrigerants were similar to R-134a at the lower mass flux (100~150 kg·m−2·s−1), while they were up to 10% higher than R-134a as the mass flux increased. The pressure drop of R-513A was similar to R-1234yf and 10% lower than that of R-134a at the higher mass flux. The R-1234ze(E) pressure drops were 20 % higher compared to those of R-134a at the higher mass flux.
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Alves, Ragami Chaves, Jonato Prestes, João Carlos Alves Bueno, Fabrício Boscolo Del Vecchio, and Tácito P. Souza Junior. "Comparação do gasto energético em diferentes métodos do treinamento de força." ConScientiae Saúde 17, no. 3 (2018): 293–301. http://dx.doi.org/10.5585/conssaude.v17n3.8288.
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Introdução: Atualmente, vem crescendo a utilização de diferentes métodos de treinamento de força (TF) como drop-set e bi-set, com intuito de maximizar gasto energético (GE). Porém, não há evidências que comprovem este fato. Objetivos: Mensurar e comparar o gasto energético (GE) em sessões de TF empregando os métodos drop-set, bi-set e TF tradicional (TRAD). Métodos: Nove homens recreacionalmente ativos realizaram três protocolos de exercícios em dias distintos, separados por intervalos de uma semana. O drop-set e o TRAD seguiram ordem fixa de execução dos exercícios; o bi-set foi realizado com dois exercícios sem intervalo entre eles. Todos os protocolos foram desempenhados a 80% de 1RM e, durante as sessões de treinamento, foi mensurado o consumo de oxigênio (VO2) e o GE. Resultados: Os resultados indicam que, durante a sessão de treino, o método drop-set gerou maiores valores de VO2 (13,6 ± 6,8 11,2 ± 5,9 kg/ml/min), GE (5,2 ± 2,3 4,5 ± 2,3 kcal/min-1), frequência cardíaca (128 ± 27,1 113 ± 22,4 bpm-1) e razão de trocas gasosas (1,2 ± 0,2 1,1 ± 0,1) quando comparado ao bi-set e TRAD (p0,05). Conclusão: Maiores valores de frequência cardíaca durante o treino e gasto calórico superior foram observados no TF realizado com o método drop-set em relação ao bi-set e TRAD.
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Canevaro, Alfredo. "Drop-out e fallimento terapeutico sono la stessa cosa?" PSICOBIETTIVO, no. 1 (May 2014): 15–23. http://dx.doi.org/10.3280/psob2014-001002.
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Ademi, Neslihan, and Suzana Loshkovska. "Early Detection of Drop Outs in E-Learning Systems." Academic Perspective Procedia 2, no. 3 (2019): 1008–15. http://dx.doi.org/10.33793/acperpro.02.03.112.
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After the popularity of Learning Management Systems, Data Mining and Learning Analytics have become emerging topics. Learning Management Systems such as Moodle, provide big amount of data to be used in analyzing students&amp;rsquo; online behavior. This paper represents a method for early detection of drop outs from a Bachelor degree course using data mining methods. Data is collected through Moodle logs. For early detection, event logs till the first exam is taken into consideration. Decision Tree (DT) and Bayesian Network (BN) algorithms are used for the prediction. In the end it is shown that DT algorithm gives a higher over-all accuracy but BN is better for discovering fail cases as it has higher specificity.
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Ware, Mark. "E-only journals: is it time to drop print?" Learned Publishing 18, no. 3 (2005): 193–99. http://dx.doi.org/10.1087/0953151054636192.
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Knight, Helen. "E. coli engineered to make convenient ‘drop-in’ biofuel." New Scientist 207, no. 2772 (2010): 20. http://dx.doi.org/10.1016/s0262-4079(10)61907-0.
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Hu, Wen Ge, Xiang Fang Li, Xin Zhou Yang, Ke Liu Wu, and Jun Tai Shi. "Energy Control in the Depletion of Gas Condensate Reservoirs with Different Permeabilities." Advanced Materials Research 616-618 (December 2012): 796–803. http://dx.doi.org/10.4028/www.scientific.net/amr.616-618.796.
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Energy control (i. e. pressure control) has an obvious effect on development effect in the depletion of gas condensate reservoir. Phase change behavior and characteristics of the relative pemeability in gas condensate reservoirs were displayed in this paper, then pressure and condensate distribution were showed through reservoir simulation. Finally, the influence of the pressure drop on condensate distribution and condensate oil production in gas condensate reservoirs with different permeabilities was studied. Results show that: First, in high / moderate permeability gas condensate reservoirs, the pressure and the condensate blocking will extend to further reservoir, while the pressure and condensate just appear in the vicinity of wellbore in low permeability gas condensate reservoirs. Second, the influence of pressure drop on condensate distribution in high permeability gas condensate reservoirs is obvious, the condensate blocking extends with the increasing of the pressure drop, and condensate extent can be controlled by optimizing a rational pressure drop, while the influence is inconspicuous in low permeability gas condensate reservoirs. Third, the influence of pressure drop on condensate oil production in high / moderate permeability gas condensate reservoirs is conspicuous, a rational pressure drop exists, while the influence is indistinct in low permeability or tight gas condensate reservoirs, before the retrograde condensation, a low pressure drop should be adopted in a long term until the bottom hole flowing pressure drops below the dew point pressure, when the condensate blocking forms, well stimulation is advised before developing by pressure control.
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Mariz de Oliveira, Maria Eugênia. "Natureza Jurídica e Efeitos Tributários da Operação de Drop Down." Revista Direito Tributário Atual, no. 57 (September 23, 2024): 410–30. http://dx.doi.org/10.46801/2595-6280.57.17.2024.2543.
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O presente trabalho visa analisar em detalhes a figura do drop down, passando por uma investigação acerca da sua natureza jurídica à luz do ordenamento jurídico brasileiro e eventuais restrições existentes à forma de realização dessa operação. Este artigo também visa demonstrar potenciais aproximações com outras figuras tipificadas no ordenamento pátrio, com o objetivo de expor, ao final desta análise, que tal figura não se confunde com outras formas de reestruturação de sociedades tipificadas no direito brasileiro. Ademais, objetiva-se fazer uma análise do tema à luz de decisões administrativas e judiciais que abordaram tal operação, muito embora, como se verá, o tema ainda se mostra pouco desenvolvido na jurisprudência. Pretende-se, por fim, tratar dos reflexos tributários decorrentes da realização do drop down, buscando demonstrar quais hipóteses específicas de drop down ensejam incidência tributária.
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Vai, Massimo. "Osservazioni sul soggetto espletivo tra fiorentino del Due-Trecento, antico francese e volgari dell’Italia Settentrionale." Cuadernos de Filología Italiana 26 (October 2, 2019): 119–42. http://dx.doi.org/10.5209/cfit.57387.
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Il soggetto espletivo caratterizza la sintassi dell’italiano antico, dell’antico fracese e dell’antico provenzale. Se ne trovano numerosi esempi anche nei volgari medievali dell’Italia Settentrionale. Dal momento che le lingue romanze sono continuazione di una lingua pro-drop, il latino, non stupisce di trovare fasi pro-drop nelle più antiche testimonianze delle stesse. Tuttavia, la non obbligatorietà del pronome soggetto espresso si organizza diversamente nelle varietà medievali, che manifestano una sintassi caratterizzata da pro-drop asimmetrico: comportamento pro-drop per le proposizioni principali, rispetto a una spiccata tendenza alla presenza del pronome soggetto nelle frasi subordinate. Questo fenomeno sembra collegato a una sintassi V2: il verbo si muove nella periferia (CP) e legittima un soggetto nullo. Il movimento a CP non è possibile o comunque molto limitato nelle dipendenti (CP è occupato dai subordinatori) e il soggetto deve essere espresso con un pronome. È con questa sintassi che si intreccia la storia del pronome soggetto espletivo in antico francese, anatico provenzale, italiano antico e volgari medievali dell’Italia settentrionale. La struttura V2 è indipendente dal carattere pro-drop della lingua, ma il soggetto obbligatorio mostra più chiaramente il fenomeno V2.
 Parole chiave: soggetto espletivo; Verb Second; pro-drop asimmetrico; periferia sinistra della frase; sintassi delle lingue romanze medievali.
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Suzuki, Seiichi. "The Metrical Reorganization of Type E in the Heliand." American Journal of Germanic Linguistics and Literatures 12, no. 2 (2000): 281–90. http://dx.doi.org/10.1017/s1040820700002729.
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In the Heliand, type E (/ / × /) shows a graded preference for the b-verse according to the composition of its first three positions. In Beowulf, by contrast, the same metrical type occurs with consistent preference for the b-verse. This paper claims that the gradation of type E unique to the Heliand arose as a consequence of the reorganization of the first drop of type A, whereby the traditional binary categorization of the normal and heavy drops was replaced by a single prototype-based graded category, as demonstrated in Suzuki 2000.
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Fox, N. I. "TECHNICAL NOTE: The representation of rainfall drop-size distribution and kinetic energy." Hydrology and Earth System Sciences 8, no. 5 (2004): 1001–7. http://dx.doi.org/10.5194/hess-8-1001-2004.
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Abstract. To relate observed rainfall rates (R) to the kinetic energy flux (E) that affects soil erosion it is necessary to develop relationships between the two. This paper explores theoretical E–R relationships based on gamma distributions of drop size. The relationship is poorly defined unless assumptions are made about changes in the shape of the drop-size distribution (DSD) with rainfall rate. The study suggests that the assumption of an exponential DSD leads to overestimation of kinetic energy flux. Further, incorporation of a horizontal component of kinetic energy allows for a clearer relationship between kinetic energy and rainfall intensity to be defined, but a question remains regarding the most appropriate definition of the horizontal component of drop velocity. Keywords: drop-size distribution, drop kinetic energy, soil erosion
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Maulana, Afrizal Aziz, Ajib Susanto, and Desi Purwanti Kusumaningrum. "Rancang Bangun Web Scraping Pada Marketplace di Indonesia." JOINS (Journal of Information System) 4, no. 1 (2019): 41–53. http://dx.doi.org/10.33633/joins.v4i1.2544.
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E-commerce dan marketplace berkaitan dengan sistem dropship. Dropship merupakan istilah dari jual beli dimana drop shipper (pengecer) tidak memiliki barang. Drop shipper kini masih menggunakan cara manual dalam mendapatkan data barang dari supplier dan unggah yaitu dengan mengambil data barang secara satu persatu dan mengunggah manual satu persatu yang membutuhkan waktu cukup lebih. Pada penelitian ini dibangun aplikasi terbaru untuk membantu drop shipper dalam mendapatkan data produk dan mengunggahnya secara otomatis. Pengembangan sistem yang digunakan adalah waterfall dengan alur proses dari analisis kebutuhan, perancangan sistem, implementasi sistem, pengujian dan pemeliharaan sistem. Penelitian ini menghasilkan sebuah aplikasi yang dapat mengambil data / scraping barang pada sebuah toko supplier yang kemudian mendapatkan hasil pengambilan data dalam bentuk .csv. Kemudian dilakukan proses unggah secara otomatis dengan hanya memasukkan nama file hasil pengambilan data yang berformat .csv, maka data otomatis terunggah ke toko drop shipper. Hasil pengujian web scrapping berhasil dilakukan dengan mengambil data produk dari marketplace Tokopedia, Shoopee dan diunggah ke e-commerce Afrizal22hop.Kata kunci : Marketplace, E-commerce, Dropship, Drop shipper, Web Scraping
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Chan, JTS. "What Will be the Percentage Drop in Attendance of Accident & Emergency Department after Implementation of Charges?" Hong Kong Journal of Emergency Medicine 8, no. 4 (2001): 241–46. http://dx.doi.org/10.1177/102490790100800409.
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The attendance of Accident & Emergency (A&E) departments in Hong Kong increased from 1.1 million in 1990 to 2.3 million in 2000. The statistics of Hospital Authority showed that about 75% of the attendance belonged to the semi-urgent or non-urgent cases. It is expected that the A&E attendance will drop after implementation of A&E charges. A cross-sectional study was done using the database of a typical medium size A&E department in Hong Kong to analyse this impact. The result of statistical analysis showed that there would be about 30% drop in A&E attendance. Other factors, however could affect the results and these were discussed. After adjustment, it was concluded that there would be about 20% drop in attendance after the implementation of A&E charges.
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Htike, Than, Rattapon Saengrayap, Nattapol Aunsri, Khemapat Tontiwattanakul, and Saowapa Chaiwong. "Investigation and Evaluation of Impact Bruising in Guava Using Image Processing and Response Surface Methodology." Horticulturae 7, no. 10 (2021): 411. http://dx.doi.org/10.3390/horticulturae7100411.
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Simulated impact damage testing was investigated by fractal image analysis using response surface methodology (RSM) with a central composite design (CCF) on quality of ‘Glom Sali’ guava for drop heights (0.2, 0.4, and 0.6 m), number of drops (1, 3, and 5) and storage temperature conditions (10, 20, and 30 °C). After 48 h, impacted fruit were determined and analyzed for bruise area (BA), bruise volume (BV), browning index (BI), total color difference (∆E), image analysis for bruise area (BAI), and fractal dimension (FD) at the bruising region on peeled guava. Results showed that the correlation coefficient (r = −0.6055) between ∆E and FD value was higher than ∆E and either BA (r = 0.3132) or BV (r = 0.2095). The FD variable was determined as a better indicator than conventional measurement (BA or BV) for pulp browning and impact bruising susceptibility. The FD variable also exhibited highest R2adj value (81.69%) among the other five variables, as the highest precision model with high determination coefficient value (R2adj) (>0.8) for impact bruising prediction. Recommended condition of the FD variable to minimize impact bruising was drop height of 0.53 m for five drops under storage at 30 °C. FD variable assessed by image analysis was shown to be a highly capable measurement to determine impact bruising susceptibility in guava fruit.
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Zabarankin, Michael. "Liquid toroidal drop under uniform electric field." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 473, no. 2202 (2017): 20160633. http://dx.doi.org/10.1098/rspa.2016.0633.
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The problem of a stationary liquid toroidal drop freely suspended in another fluid and subjected to an electric field uniform at infinity is addressed analytically. Taylor’s discriminating function implies that, when the phases have equal viscosities and are assumed to be slightly conducting (leaky dielectrics), a spherical drop is stationary when Q =(2 R 2 +3 R +2)/(7 R 2 ), where R and Q are ratios of the phases’ electric conductivities and dielectric constants, respectively. This condition holds for any electric capillary number, Ca E , that defines the ratio of electric stress to surface tension. Pairam and Fernández-Nieves showed experimentally that, in the absence of external forces (Ca E =0), a toroidal drop shrinks towards its centre, and, consequently, the drop can be stationary only for some Ca E >0. This work finds Q and Ca E such that, under the presence of an electric field and with equal viscosities of the phases, a toroidal drop having major radius ρ and volume 4 π /3 is qualitatively stationary—the normal velocity of the drop’s interface is minute and the interface coincides visually with a streamline. The found Q and Ca E depend on R and ρ , and for large ρ , e.g. ρ ≥3, they have simple approximations: Q ∼( R 2 + R +1)/(3 R 2 ) and Ca E ∼ 3 3 π ρ / 2 ( 6 ln ρ + 2 ln [ 96 π ] − 9 ) / ( 12 ln ρ + 4 ln [ 96 π ] − 17 ) ( R + 1 ) 2 / ( R − 1 ) 2 .
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Khouja, Moutaz. "The evaluation of drop shipping option for e-commerce retailers." Computers & Industrial Engineering 41, no. 2 (2001): 109–26. http://dx.doi.org/10.1016/s0360-8352(01)00046-8.
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Kleebauer, Alistair. "Drop in A&E waiting times performance in Scotland." Nursing Standard 28, no. 36 (2014): 0. http://dx.doi.org/10.7748/ns2014.05.28.36.0.2836997.
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Ma, Xiaolei, and Justin C. Burton. "Self-organized oscillations of Leidenfrost drops." Journal of Fluid Mechanics 846 (May 4, 2018): 263–91. http://dx.doi.org/10.1017/jfm.2018.294.
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In the Leidenfrost effect, a thin layer of evaporated vapour forms between a liquid and a hot solid. The complex interactions between the solid, liquid and vapour phases can lead to rich dynamics even in a single Leidenfrost drop. Here we investigate the self-organized oscillations of Leidenfrost drops that are excited by a constant flow of evaporated vapour beneath the drop. We show that for small Leidenfrost drops, the frequency of a recently reported ‘breathing mode’ (Caswell, Phys. Rev. E, vol. 90, 2014, 013014) can be explained by a simple balance of gravitational and surface tension forces. For large Leidenfrost drops, azimuthal star-shaped oscillations are observed. Our previous work showed how the coupling between the rapid evaporated vapour flow and the vapour–liquid interface excites the star-shaped oscillations (Ma et al., Phys. Rev. Fluids, vol. 2, 2017, 031602). In our experiments, star-shaped oscillation modes of $n=2{-}13$ are observed in different liquids, and the number of observed modes depends sensitively on the viscosity of the liquid. Here we expand on this work by directly comparing the oscillations with theoretical predictions, as well as show how the oscillations are initiated by a parametric forcing mechanism through pressure oscillations in the vapour layer. The pressure oscillations are driven by the capillary waves of a characteristic wavelength beneath the drop. These capillary waves can be generated by a large shear stress at the liquid–vapour interface due to the rapid flow of evaporated vapour. We also explore potential effects of thermal convection in the liquid. Although the measured Rayleigh number is significantly larger than the critical Rayleigh number, the frequency (wavelength) of the oscillations depends only on the capillary length of the liquid, and is independent of the drop radius and substrate temperature. Thus convection seems to play a minor role in Leidenfrost drop oscillations, which are mostly hydrodynamic in origin.
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Favelukis, Moshe. "A slender drop in a nonlinear extensional flow." Journal of Fluid Mechanics 808 (November 2, 2016): 337–61. http://dx.doi.org/10.1017/jfm.2016.646.
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The deformation of a slender drop in a nonlinear axisymmetric extensional and creeping flow has been theoretically studied. This problem, which was first suggested by Sherwood (J. Fluid Mech., vol. 144, 1984, pp. 281–295), is being revisited, and new results are presented. The problem is governed by three dimensionless parameters: the capillary number ($\mathit{Ca}\gg 1$), the viscosity ratio ($\unicode[STIX]{x1D706}\ll 1$), and the nonlinear intensity of the flow ($E\ll 1$). Contrary to linear extensional flow ($E=0$), where the local radius of the drop decreases monotonically (in the positive $z$ direction), in a nonlinear extensional flow ($E\neq 0$), two possible steady shapes exist: steady shapes (stable or unstable) with the local radius decreasing monotonically, and steady shapes (unstable) where the local radius of the drop has a local maximum, besides the one at the centre of the drop. Similar to linear extensional flow, the addition of nonlinear extensional effects does not change the end shape of the steady drop, which has pointed ends. A stability analysis has been done to distinguish between stable and unstable steady shapes and to determine the breakup point. Time-dependent studies reveal three types of breakup mechanism: a centre pinching mode, indefinite elongation, and a mechanism that remind us of tip-streaming, where a cusp is developed at the end of the drop.
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Montrul, Silvina, Rejane Dias, and Hélade Santos. "On some null subject parameter-related properties in the L3 acquisition of brazilian portuguese (Sobre algumas propriedades relacionadas ao parâmetro do sujeito nulo na aquisição do português brasileiro como L3 )." Estudos da Língua(gem) 7, no. 2 (2009): 199. http://dx.doi.org/10.22481/el.v7i2.1096.
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As language undergoing language change, Brazilian Portuguese presents characteristics of both pro-drop and non-pro drop systems. This study investigates the acquisition of two properties assumed to be related to the null subject parameter—clitic-climbing and the that-t effect—by adult learners of Brazilian Portuguese who speak a pro-drop language (Spanish) (n = 11) and a non pro-drop language (English) (n =19) as either L1 or L2. Results of an acceptability judgment task showed that the non-native speakers overall converged on the grammars of the Brazilian Portuguese control group (n =19), but there were transfer effects from Spanish for the L1-Spanish speaking learners and from both Spanish and English in the L1-English speaking learners. We discuss the implications of these findings for the role of transfer in L3 acquisition.KEYWORDS: Null subject parameter. L3 acquisition. Brazilian Portuguese.
 RESUMO O português brasileiro, por estar em processo de mudanças, apresenta características tanto de sistemas pro-drop quanto de sistemas não pro-drop. Este estudo investiga a aquisição de duas propriedades que se assume que estão relacionadas ao parâmetro do sujeito nulo – a subida de clítico e o efeito that-t– por adultos aprendizes do português brasileiro, falantes de uma língua pro-drop (espanhol) (n = 11) e de uma língua não pro-drop (inglês) (n = 19), seja como L1 ou como L2. Os resultados de um teste de julgamento de aceitabilidade mostraram que, em geral, os falantes não nativos tenderam à/se aproximaram da gramática do grupo de controle formado por falantes de português brasileiro (n = 19). Porém, observaram-se efeitos de transferência do espanhol para os aprendizes falantes nativos de espanhol e transferências de ambas as línguas, espanhol e inglês, para os aprendizes falantes nativos de inglês. Discutimos as implicações destes resultados para o papel da transferência na aquisição de L3.PALAVRAS-CHAVES: Parâmetro do sujeito nulo. Aquisição de L3. Português brasileiro.
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Obahiagbon, K. O., and C. N. Owabor. "Bio-Treatment of Crude Oil Polluted Water Using Mixed Microbial Populations of P. Aureginosa, Penicillium Notatum, E. Coli and Aspergillus Niger." Advanced Materials Research 62-64 (February 2009): 802–7. http://dx.doi.org/10.4028/www.scientific.net/amr.62-64.802.
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Bioremediation as a strategy of clean- up of crude oil spills in water using a mixed microbial population of E. Coli, Aspergillus niger, Penicillum notatum and Pseudomonas aeruginosa was investigated in this study. The sample of crude oil polluted water containing the mixed microbes and the control was monitored for parameters such as BOD, pH, Total Hydrocarbon Content (THC) and Turbidity over a period of nine weeks. At the end of the bioremediation period, the results obtained showed that the sample remediated with the mixed microbes gave a THC drop from 14975mg/l -1.960mg/l (99.9% drop) compared to the control with a drop from 14975 – 18.72mg/l (99.8% drop). A BOD drop from 1447.4mg/l – 17.1mg/l (98.8?% drop) for the sample mixed microbes and 1447.4 – 90.8mg/l (93.7% drop) for the control. Turbidity values increased from 5.0 NTU – 25.2NTU for sample with mixed microbes and 5.0 NTU – 23.1 NTU for the control. The values of THC (1.96 mg/l) and BOD (17.1 mg/l) at the end of the experimentation period fell within the FEPA and DPR limits of 10mg/l and 30mg/l for THC and BOD respectively.The results above thus indicates that the use of mixed microbial population of Pseudomonas aureginosa, Penicillium notatum, E. Coli and
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Inoue, Norihiro, Masataka Hirose, Daisuke Jige, and Junya Ichinose. "Correlation for Condensation Heat Transfer in a 4.0 mm Smooth Tube and Relationship with R1234ze(E), R404A, and R290." Applied Sciences 8, no. 11 (2018): 2267. http://dx.doi.org/10.3390/app8112267.
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In this study, the condensation heat transfer coefficient and pressure drop characteristics of a 4 mm outside diameter smooth tube, using R32, R152a, R410A, and R1234ze(E) refrigerants, were examined. Condensation heat transfer coefficients and pressure drops were measured at a saturation temperature of 35 °C, in the region of mass velocities from 100 to 400 kg m−2s−1. The frictional pressure drop, and the condensation heat transfer from the new measurements, using R1234ze(E) as a refrigerant, were compared with those of R32, R152a, and R410A, in the smooth tube. Experimental values of condensation heat transfer coefficient of smooth tube were also compared to the predicted values obtained using the previously established correlations. The previous correlation from Cavallini et al., for the condensation heat transfer coefficient of small-diameter smooth tube, was estimated to be within ±30%. However, the general correlation, which can be easily predicted, for condensation heat transfer inside small-diameter smooth tubes, was suggested, and the relationship of the general correlation was compared with data for R1234ze(E) obtained by us, and R404A and R290 obtained by other researchers.
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Ilyaschenko, D. P., A. V. Kryukov, E. V. Lavrova, M. A. Kuznetsov, and E. V. Verkhoturova. "Determination of Parameters of Electrode Metal Transported Drops by Simulation and Visualization." Devices and Methods of Measurements 11, no. 3 (2020): 222–27. http://dx.doi.org/10.21122/2220-9506-2020-11-3-222-227.
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The nature of the molten electrode metal melting and transfer is the main process parameter of manual metal arc welding (MMA) with coated electrodes. It significantly affects the efficiency of the welding process. For this reason the relevant task is to identify the parameters of the transferred molten electrode metal drops and their further transfer into the weld pool with maximum accuracy. The aim of the given paper is to develop a method and visual representation of the form and the geometrics (volume, area, mass) of a molten electrode metal drop.We have developed the method of simulation modeling and visualization for molten electrode metal drops transfer and their parameters. It allows obtaining highly reliable input data to be used for developing and verification of mathematical models for the thermal fields distribution along the welded item surface. The algorithm is realized as the calculation programs for specifying the molten metal drop parameters and means of its geometrics and space form visualization.We used this method to specify a number of molten electrode metal drop parameters: volume, mass, center-of-gravity position, surface area.We have established that it is possible to conduct the measurements with maximumThe suggested method significantly decreases the labor intensity of experimental studies aimed at specifying the size of electrode metal drops in comparison to the standard methods. When we know the size of the drops under certain welding conditions we can control the drop transfer process, i. e. reduce the heat input into the welded item and produce weld joints with the tailored performance characteristics.
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Saita, Emanuela, Sara Molgora, and Giorgia Vacchini. "Il fenomeno del drop-out nella ricerca: riflessioni e appunti di metodo." RICERCHE DI PSICOLOGIA, no. 4 (March 2013): 411–33. http://dx.doi.org/10.3280/rip2011-004001.
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Il drop-out nella ricerca in ambito psicologico costituisce un fenomeno diffuso e consistente, sebbene risulti difficile darne una stima esatta e considerarne le implicazioni, con effetti negativi per la ricerca stessa soprattutto nei termini della sua validita. In questa prospettiva, scopo del presente contributo e quello di portare una riflessione sul tema del drop-out nella ricerca clinica al fine di sviluppare una teoria della tecnica del campionamento in grado di considerare quegli aspetti che, ad oggi, vengono per lo piu scarsamente valutati. In particolare, verranno trattate le principali questioni, di paradigma e di metodo, relative al campionamento nelle pratiche di ricerca per poi focalizzare l'attenzione sulle possibili variabili predittive ed esplicative del fenomeno in oggetto. Infine, verra presentata, a titolo di esemplificazione, una ricerca longitudinale centrata sul tema della transizione alla genitorialita in coppie primipare, ricerca che ha registrato un elevato numero di drop-out dopo la prima fase.
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Assumpção, Debora Skibinski, Clovis Antonio Kronbauer, and Diego Saldo Alves. "Reorganização Societária Atípica: Impactos Contábeis e Tributários do DROP DOWN no Brasil." Revista de Contabilidade da UFBA 8, no. 3 (2015): 52–74. http://dx.doi.org/10.9771/rcufba.v8i3.9271.
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O presente estudo tem o objetivo de analisar os impactos contábeis e tributários de uma reorganização societária conhecida como DROP DOWN. Muito comum nos Estados Unidos no meio empresarial, ela é caracterizada pelo aumento de capital que uma empresa faz em outra, na qual transfere bens, direitos e/ou obrigações em troca da participação societária com controle acionário. Sem previsão legal no direito societário brasileiro, mas já sendo realizada em algumas empresas brasileiras como uma opção de reestruturação societária.
 O DROP DOWN se assemelha a cisão em alguns aspectos, mas sem a redução do capital social ou extinção da empresa cindida, por isso alguns autores aqui no Brasil a denominaram de “cisão branca”.
 A metodologia concentrou-se em bases documentais, e assim, o estudo foi realizado por meio de buscas em sites jurídicos, no site EBSCO, biblioteca do STF, artigos e livros jurídicos, onde constassem temas ligados à reestruturação ou reorganização societária por intermédio da combinação de negócio que envolvessem a operação de drop down . Os resultados obtidos foram satisfatórios, pois demonstram que mesmo não sendo divulgada e ou conhecida em nosso país, o drop down vem ocorrendo em muitas estratégias de negócios em empresas brasileiras; e, concluiu-se que por não haver previsão legal para esse modelo de reestruturação societária em nosso país, todas as suas causas e efeitos são discutíveis judicialmente, se por acaso as entidades federais ou estaduais sentirem-se prejudicadas.
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Hoshino, Rodrigo T., Guilherme AC Alves, Thadeu R. Melo, Renan R. Barzan, Gustavo AF Fregonezi, and Ricardo T. Faria. "Adubação mineral e orgânica no desenvolvimento de orquídea Cattlianthe 'Chocolate drop'." Horticultura Brasileira 34, no. 4 (2016): 475–82. http://dx.doi.org/10.1590/s0102-053620160405.
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RESUMO A falta de estudos que indiquem as necessidades nutricionais de muitas orquídeas resulta na realização de práticas de adubação embasadas em experiências práticas e que não necessariamente atendem às demandas nutricionais de todas as espécies. O objetivo deste trabalho foi avaliar a influência da adubação mineral e orgânica e suas respectivas combinações no desenvolvimento da orquídea Cattlianthe 'Chocolate drop'. As mudas desse híbrido foram obtidas por clonagem in vitro, e cultivadas em condição de casa de vegetação, utilizando potes plásticos com capacidade de 1 L contendo como substrato uma mistura de casca de pinus e carvão (4v:3v). Os tratamentos avaliados foram: sem adubação (testemunha), fertirrigação com fertilizante mineral ultra solúvel (FMU), mistura de torta de mamona e farinha de ossos (TM+FO), bokashi (BOK), FMU + mistura de torta de mamona e farinha de ossos {FMU+(TM+FO)}, FMU + bokashi (FMU+BOK), mistura de torta de mamona e farinha de ossos + bokashi {(TM+FO)+BOK}, FMU + mistura de torta de mamona e farinha de ossos + bokashi {FMU+(TM+FO)+BOK}. Após oito meses do início das adubações foram avaliados o desenvolvimento da parte aérea e o acúmulo de nutrientes. O tratamento FMU+BOK foi significativamente superior ao tratamento sem adubação, com incrementos aproximados de 54, 42, 33 e 78% da massa seca da parte aérea, comprimento da parte aérea, comprimento médio radicular e área foliar, respectivamente. A combinação entre adubação mineral e orgânica favoreceu o desenvolvimento de plantas do híbrido de Cattlianthe 'Chocolate drop'.
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Samyal, Vijay Kumar. "Impact of Buffer Size on Different Drop Policies (DLR, MOFO and E-Drop) for MaxProp Routing Protocol in DTN." International Journal for Research in Applied Science and Engineering Technology 6, no. 6 (2018): 1420–24. http://dx.doi.org/10.22214/ijraset.2018.6208.
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Teixeira, Pedro, Isabel Saavedra, Tiago Rodrigues, et al. "Avaliação dos Motivos Subjacentes e Identificação de Fatores Preditivos do Drop-Out de Doentes Psiquiatricos." Acta Médica Portuguesa 25, no. 6 (2013): 408–13. http://dx.doi.org/10.20344/amp.1357.
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Introdução/Objectivos: A avaliação dos resultados das intervenções em psiquiatria deve ser multidimensional, incluindo variáveisclínicas e sociais, como a experiência individual do portador de doença mental. Uma variável que tem vindo a ser reconhecida comoimportante é a satisfação do doente com os cuidados prestados, pese embora não tenha de ser o objectivo principal do serviço ou dopsiquiatra. Contudo, se a perspetiva do utente não for incluída, existe o risco dos resultados serem enviesados pela perceção de quemos fornece. Neste estudo, pretende-se perceber se o abandono do tratamento (drop-out) representa uma melhoria ou pioria do bemestarsubjectivo dos doentes e/ou a insatisfação com os serviços recebidos, bem como encontrar factores preditivos para o drop-out.Material e Métodos: Identificação de drop-outs num coorte de dois anos de doentes que tiveram primeiras consultas de psiquiatria, naUnidade de Psiquiatria do Centro Hospitalar do Médio Ave – Unidade de Famalicão (Serviço Local de Saúde Mental).Resultados: Identificaram-se 512 doentes que tiveram uma primeira consulta de psiquiatria, dos quais 57 abandonaram unilateralmenteo tratamento pelo menos por seis meses, sem contactos efectuados nesse período no sentido de remarcação da consulta.Destes apenas 38 completaram a avaliação (resposta telefónica a questionário semiestruturado). Encontraram-se três fatores preditivospara o drop-out: idade, escolaridade e diagnóstico.Conclusões: As razões para abandono centram-se sobretudo no esquecimento e insatisfação, esta última centrada em questões darelação médico-doente. Estes resultados devem ser um ponto de partida para a avaliação e melhoria dos cuidados prestados.
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Madariaga, Nerea. "On Partial Null Subject languages: Why pro-drop in Brazilian Portuguese and Russian became similar but not identical/ Sobre as línguas de Sujeito Parcialmente Nulo: Por que o pro-drop em português brasileiro e em russo se tornaram semelhantes, mas não idênticos." REVISTA DE ESTUDOS DA LINGUAGEM 30, no. 4 (2022): 1896. http://dx.doi.org/10.17851/2237-2083.30.4.1896-1935.
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Abstract: In this paper, I claim that a parametric view on change in pro-drop does not contradict the fact that not all the Partial Null Subject (PNS) languages display identical properties. I show that the contingent nature of diachronic change is the reason for the slight differences between PNS languages. Modern Russian (MR) and Brazilian Portuguese (BP) are two PNS languages that developed from Consistent Null Subject antecessors (Old Russian and European Portuguese) independently from each other. I account for the change in pro-drop experienced by these two languages, analyzing the properties usually related to the null subject parameter (verbal inflection, clitics, null objects, embedded and arbitrary null subjects), and show that the final parametric setting in both MR and BP was almost identical, with small differences that can be attributed to the different initial conditions for the change.Keywords: Pro-drop; null subjects; null objects; clitics; Consistent Null Subject languages; Partial Null Subject languages; Brazilian Portuguese; European Portuguese; Modern Russian; Old Russian.Resumo: Neste artigo, afirmo que uma visão paramétrica sobre a mudança em pro-drop não está em conflito com o fato de que nem todas as línguas de sujeito nulo parcial (PNS) apresentam propriedades idênticas. Mostro que a natureza contingente da mudança diacrônica é a razão para as pequenas diferenças entre as línguas PNS. O russo moderno (MR) e o português brasileiro (BP) são duas línguas PNS que se desenvolveram a partir dos antecessores de sujeito nulo consistente (antigo russo e português europeu) independentemente uma da outra. Relato a mudança de pro-drop experimentada por essas duas línguas, analisando as propriedades geralmente relacionadas ao parâmetro de sujeito nulo (inflexão verbal, clíticos, objetos nulos, sujeitos nulos subordinados e arbitrários), e mostro que a configuração paramétrica final em ambas MR e BP foi quase idêntica, com pequenas diferenças que podem ser atribuídas às diferentes condições iniciais para a mudança.Palavras-chave: Pro-drop; sujeitos nulos; objetos nulos; clíticos; línguas de sujeito nulo consistente; línguas de sujeito nulo parcial; português brasileiro; português europeu; russo moderno; russo antigo.
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Cherepantsev, A. S. "Stress Relaxation in a Cellular Model of Elements with Nonlinear Interaction." Физика земли 2023, no. 1 (2023): 39–53. http://dx.doi.org/10.31857/s0002333723010027.
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A model of stress relaxation in a system of discrete elements is analyzed. The model suggests analyzing a small-time scale of the process when external supply of additional stresses in the system are negligibly small. The nonlinear interaction of elements is similar to the interaction of elements in the open dissipative OFC model. Toppling conditions are determined by the static fatigue effect. It is shown that at a high level of element coupling, the model is characterized by a power-law decay of the drop frequency in time, similar to that observed in aftershock sequences of earthquakes. This regularity slightly depends on the initial distribution of stresses in the system, its exponent is p = 0.85–10 for the element coupling parameter α = 0–0.25. The analysis of the value of the time delay c for the formation of a power-law drop frequency decay shows that this parameter correlates with the duration of large-amplitude drops at the initial step of the relaxation process. The value c is defined in this case by the parameter α. Calculations also shows that relaxation of the mean stress σ(t) in the system of elements follows the relation \(t \propto {{e}^{{ - \gamma \sigma }}}\) with a time delay corresponding to the value for the drop frequency dependence. At the same time, there is no delay in the time series of the mean stress decrease during the drop of an individual element \(d\sigma \). The dependence \(d\sigma \left( t \right)\) is defined by the relation \(t \propto {{e}^{{ - \beta \Delta \sigma }}}\) in the entire temporal interval of the relaxation process. The value β linearly decreases with the increase of element coupling α in the model.
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Behling, Gustavo, Diulnéia Granja Pereira, and Sidnei Vieira Marinho. "Uma Gota no Oceano e Vários Desafios para a Ocean Drop." Revista de Administração Contemporânea 23, no. 3 (2019): 436–53. http://dx.doi.org/10.1590/1982-7849rac2019170378.
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Resumo O presente caso de ensino propõe aos alunos, a necessidade de analisar estrategicamente o modelo de negócio adotado pela Ocean Drop - primeira empresa brasileira especialista em nutrição com microalgas, de forma que a mesma possa continuar aumentando a sua escalabilidade sem afetar a rentabilidade. O caso também provoca uma reflexão sobre a adequação do plano de negócio em estágios iniciais da empresa e a utilização do modelo de negócio Canvas, como alternativa ao planejamento formal e sistemático em negócios inovadores. Este caso pode ser utilizado em cursos de pós-graduação ou MBA’s, em disciplinas de Empreendedorismo, Inovação ou Gestão Estratégica. As situações relatadas neste caso são baseadas em uma estória real e o nome da empresa e dos empreendedores foram mantidos. As notas de ensino trazem sugestões de questões a serem discutidas em sala de aula, além de uma proposta de dinâmica para utilização do caso que possibilita relacionar os fatos com a literatura sobre construção e avaliação do modelo de negócio Canvas. JEL Code: A2, M1, O21.
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Lombardi, Lavinia, Giuseppe Grossi, Lorenza Isola, et al. "Fattori predittivi del drop-out: accettabilità e impegno nel parent training." QUADERNI DI PSICOTERAPIA COGNITIVA, no. 46 (July 2020): 87–110. http://dx.doi.org/10.3280/qpc46-2020oa10163.
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L'obiettivo di questa revisione è identificare metodi efficaci per migliorare l'impegno e l'adesione delle famiglie ai programmi di parent training (BPT). Nonostante la letteratura indichi risultati positivi, spesso le famiglie mostrano uno scarso impegno, fino a giungere a un precoce abbandono del percorso terapeutico. Ciò comporta una serie di conseguenze negative per le famiglie, i clinici, la ricerca e il servizio sanitario nazionale. La letteratura, ad oggi, individua alcuni fattori predittivi del drop-out e varie componenti da includere nei parent training per aumentare l'impegno e l'adesione alle procedure di intervento. Tra strategie di coinvolgimento, alcuni autori suggeriscono l'utilizzo di un promemoria degli appuntamenti, brevi discussioni iniziali sulla necessità di impegnarsi, metodi di coinvolgimento dei sistemi familiari, adattamenti strutturali del programma, incentivi finanziari, aumento del supporto familiare e colloqui motivazionali. Nonostante i programmi BPT abbiano un'elevata efficacia nel cambiamento del comportamento genitoriale, la letteratura evidenzia elevati livelli di drop-out, ragion per cui gli studi presentati hanno piccoli campioni che limitano il potere statistico e la generalizzabilità dei risultati.
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Meléndrez-Acosta, Vladimir. "Logística del comercio electrónico: cross docking, merge in transit, drop shipping y click and collect." Científica 22, no. 2 (2018): 105–12. http://dx.doi.org/10.46842/ipn.cien.v22n2a03.
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El artículo describe condiciones de la logística en el comercio electrónico y su importancia a la hora de controlar el flujo de información de un punto de origen a un punto destino, utilizando medios electrónicos, generalmente internet. Las futuras cadenas logísticas estarán conectadas a internet, los intercambiadores logísticos son parte importante, sobre todo, para controlar la recepción y pedido de materiales, su gestión y almacenamiento. Se analiza la situación del tema en países de América y Europa, su historia, funcionamiento, bases legales y buenas prácticas. Además, se hace hincapié en algunas estrategias utilizadas en el e-commerce: cross docking, drop shipping, merge in transit y click and collect. Describiendo a cada una de ellas, su uso, importancia y la aplicabilidad en empresas de rango.
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Favelukis, Moshe. "Mass transfer around a slender drop in a nonlinear extensional flow." Nonlinear Engineering 8, no. 1 (2019): 117–26. http://dx.doi.org/10.1515/nleng-2018-0019.
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Abstract Mass transfer around a slender drop in a nonlinear extensional and creeping flow is theoretically studied. The fluid mechanics problem is governed by three dimensionless parameters: The capillary number (Ca ≫ 1), the viscosity ratio (λ ≪ 1), and the nonlinear intensity of the flow (|E| ≪ 1). The transfer of mass around such a drop is studied for the two asymptotic cases of large and zero Peclet numbers (Pe). The results show that as the capillary number increases, the drop becomes longer, thinner, its surface area increases, leading to larger mass transfer rates, especially at large Peclet numbers, since then convection contributes to the overall mass transfer as well. Taking a slender inviscid drop (λ = 0) in a linear extensional flow (E = 0) as our reference case, we find that the addition of nonlinear effects to the flow sometimes increases (Eλ−1Ca−2 < 64/9) and sometimes decreases (Eλ−1Ca−2 > 64/9) the rate of mass transfer.
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Cheng, Yuepeng, Bo Li, and Zhenhong Li. "Analysis of the Optimal Threshold Policy of the E-Tailer with Mixture Strategy in E-Fulfillment." International Journal of Information Systems and Supply Chain Management 9, no. 2 (2016): 21–34. http://dx.doi.org/10.4018/ijisscm.2016040102.
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This study considers a supply chain consisting of a supplier and an e-tailer on the internet. The e-tailer replenishes products from the supplier for private inventory and sends drop shipping requests to him for delivering orders to customers when private inventory is insufficient or stock out, whereas the supplier provides drop shipping service with a limited ability for the e-tailer. This paper proposes an algorithm to simulate the scheduling sequences of the e-tailer with the optimal threshold policy and mixture strategy in every scheduling unit and obtains the optimal threshold of private inventory for the e-tailer to achieve average profit maximization. The impacts of mixture of demand and lead time uncertainty are examined. The influence of high priority demand variability on the optimal threshold policy in two complex scenarios are also considered in this study. These results have an important guiding significance for the e-tailer who adopts the mixture strategy in e-fulfillment under complex operating environments.