Papers by Tran Thi Thanh Thao (FGW HCM)
CIMMYT® (www.cimmyt.org) is an internationally funded, not-for-profit organization that conducts ... more CIMMYT® (www.cimmyt.org) is an internationally funded, not-for-profit organization that conducts research and training related to maize and wheat throughout the developing world. Drawing on strong science and ef fective partnerships, CIMMYT works to create, share, and use knowledge and technology to increase food security, improve the productivity and pr ofitability of farming systems, and sustain natural resources. Financial support for CIMMYT's work comes from many sources, including the members of the Consultative Gr oup on International Agricultural Research (CGIAR) (www.cgiar.org), national governments, foundations, development banks, and other public and private agencies.
Water science and technology : a journal of the International Association on Water Pollution Research, 2016
In this study, granular sludge formation was carried out using an aluminum chloride supplement in... more In this study, granular sludge formation was carried out using an aluminum chloride supplement in an upflow anaerobic sludge blanket (UASB) reactor treating natural rubber processing wastewater. Results show that during the first 75 days after the start-up of the UASB reactor with an organic loading rate (OLR) of 2.65 kg-COD·m(-3)·day(-1), it performed stably with a removal of 90% of the total chemical oxygen demand (COD) and sludge still remained in small dispersed flocs. However, after aluminum chloride was added at a concentration of 300 mg·L(-1) and the OLR range was increased up to 5.32 kg-COD·m(-3)·day(-1), the total COD removal efficiency rose to 96.5 ± 2.6%, with a methane recovery rate of 84.9 ± 13.4%, and the flocs began to form granules. Massively parallel 16S rRNA gene sequencing of the sludge retained in the UASB reactor showed that total sequence reads of Methanosaeta sp. and Methanosarcina sp., reported to be the key organisms for granulation, increased after 311 days...
Pensee, 1986
Res d'A. Ou en sont les recherches sur les premiers hominides? Comment penser en particulier ... more Res d'A. Ou en sont les recherches sur les premiers hominides? Comment penser en particulier la separation d'avec la lignee des grands singes? L'apport des pratiques scientifiques nouvelles a la paleontologie eclaire ce " moment " essentiel de l'histoire de la terre et de ses habitants
Lecture Notes in Computer Science, 2016
Proof Of Retrievability (POR) is a protocol that supports a data owner to check whether the data ... more Proof Of Retrievability (POR) is a protocol that supports a data owner to check whether the data stored in cloud servers is available, intact and retrievable. Based on the POR, network coding technique has been applied to increase efficiency and throughput in data transmission and data repair. Although many network codingbased PORs have been proposed, most of them have not considered a practical scenario in which not only the data owner can check and can retrieve the data stored in the untrusted servers, but also an untrusted user can check and can retrieve the data stored in the servers without learning the secret keys of the data owner. This scenario occurs commonly in reality. For instance, in a data provision-payment system, the user must pay money to get data stored in the servers. In this paper, we propose a new network coding-based POR, named POR-2P (a network coding-based POR for data Provision-Payment system), to deal with this scenario. Furthermore, the complexity analysis and the performance evaluation show that the POR-2P is very efficient and applicable for a real cloud system.
Journal of International Business Research, Dec 1, 2008
RESEARCH METHODOLOGY The research methodology combines desk work information analysis, primary an... more RESEARCH METHODOLOGY The research methodology combines desk work information analysis, primary and secondary data collection. The primary data was mostly (81%) collected by face-to-face and telephone interviews using questionnaire to 126 ICT firms in Vietnam. The remains of 13% of primary data were collected by mail. There are 106 feedbacks, accounting for 84% of the sample size of 126 The secondary data includes collecting information about the number and size of ICT firms in Vietnam; information about current performance of some big ICT firms in terms of how much money and effort spent on motivating people to contribute innovative ideas and best exploit these ideas. INNOVATION UPON DEALING WITH DARWIN Dealing with Darwin is about leading your enterprise's evolution. It seeks to address the fundamental question: How can we innovate forever? Because that is precisely what natural selection forces us to do. Evolution requires us to continually refresh our competitive advantage. To innovate forever, in other words, is not an aspiration; it is a design specification. It is not a strategy; it is a requirement. With globalization, deregulation and commoditization, business is becoming increasingly competitive, thus all companies are under increasing pressure to innovate. That is because free-market economies operate by the same rules as organic systems in nature: (1) Competition for the scare resources of customer purchases creates hunger that stimulates Innovation; (2) Customer preferences for one Innovation over another create a form of natural selection that leads to survival -of-the-fittest outcomes; (3) Each new generation restarts the competition from a higher standard of competence than the prior generation. Innovation comes from many forms, far more than management teams usually acknowledge. As suggested in Dealing with Darwin, there are fourteen types of innovation types relevant to each period of the category-maturity life cycle. The challenge for management teams is to choose the type of innovation appropriate to their current situation and explore the process deeply enough so as to create definitive separation from their direct competitors. This is the process of managing innovation which includes the seven steps as follow. Socialize The Ideas Socializing the ideas plays a very important role in managing innovation. As management teams have little enough time to strategy, so they may have to pay high opportunity cost of grabbing a novel methodology. Thus, you'd better mobilizing the ideas in the organization, with discussion in caucus to get whether this is worth pursuing in the current situation. This step also implies how to mobilize innovative ideas in an organization without bias in the most effective way. Analyze The Portfolio Assuming there is support to pursue the project, the goal of this step is to analyze the position of each of our primary product lines in the category-maturity life cycle and the forms of innovation your competitors are using to differentiate from you, and eventually choose one or more categories to target for an innovation project. Analyze The Target Category The goal of this step is to get a clear view of the target category's current dynamics and the nature of the company's opportunity to change the competitive landscape. In this step, the team should know how the category as a whole is performing, which business architecture that is having greater success & more appropriate to our company. In addition, you have to be well-aware of your competitors' performance operating on the same architecture as yours. Out of this discussion, as if you are sure of the changing innovation strategies is a good idea, then proceed it. However, do not eliminate your current strategy until you have a good reason to do so. …
Applied Mathematical Sciences
The aim of this note is to investigate the problem of valuing defaut risk for a firm when its ass... more The aim of this note is to investigate the problem of valuing defaut risk for a firm when its assets value is a jump process. The default probability is established for the case of one liability and is estimated for the case of various liabilities.
The aim of this paper is to find the best state estimation for fractional stochastic volatility f... more The aim of this paper is to find the best state estimation for fractional stochastic volatility from point process observations by a method of semimartingale approximation.
A new approach to fractional Kalman-Bucy is introduced based on author's results on semimarti... more A new approach to fractional Kalman-Bucy is introduced based on author's results on semimartingale L2- approximation applied to fractional stochastics. Method of nonlinear filtering is used in the process of determining the filter.
International Journal of Distributed Sensor Networks, 2015
When data owners publish their data to a cloud storage, data integrity and availability become ty... more When data owners publish their data to a cloud storage, data integrity and availability become typical problems because the cloud servers are never trusted. To address these problems, researchers proposed the Proof of Retrievability (POR) protocol which allows a verifier to check and repair the data stored in the cloud servers. Based on the POR protocol, the network coding technique is commonly applied to increase the efficiency in data transmission and data repair. However, most previous schemes neither consider a practical scenario nor use the network coding efficiently. In this paper, a lightweight network coding-based POR scheme, called MD-POR (Multisource and Direct Repair for Proof of Retrievability) is proposed. Unlike previous schemes, the proposed MD-POR scheme allows multiple clients who have different secret keys to participate in the scheme. Moreover, the MD-POR scheme supports the direct repair feature in which a corrupted data can be recovered by the servers without burdening the clients. The MD-POR scheme also supports public authentication feature in which a third party auditor is employed to check the servers, and the client is thus free of the responsibility of periodically checking the servers. Furthermore, the MD-POR scheme is constructed based on a symmetric key setting.
Journal of Nanomaterials, 2015
With the aim to find out an enhanced operating-temperature range for photovoltaic device paramete... more With the aim to find out an enhanced operating-temperature range for photovoltaic device parameters, two types of the photoactive layer were prepared: poly(3-hexylthiophene) (P3HT) and P3HT+nc-TiO2(PTC) thin films. The enhancement obtained for the photoelectrical conversion efficiency of the composite based OSCs is attributed to the presence of nanoheterojunctions of TiO2/P3HT. For the temperature range of 30–70°C, the decrease of the open-circuit potential was compensated by an increase of the fill factor; and the increase in the short-circuit current resulted in an overall increase of the energy conversion efficiency. At elevated temperatures of 60–80°C the efficiency of the P3HT- and PTC-based cells reached a maximum value of 1.6% and 2.1%, respectively. Over this temperature range the efficiency of P3HT-based OSC decreased strongly to zero, whereas for the PTC cells it maintained a value as large as 1.2% at the temperature range of 110–140°C. The improved thermal stability of th...
The limit equilibrium method (LEM) was used to back analyze the per- formance of three full-scale... more The limit equilibrium method (LEM) was used to back analyze the per- formance of three full-scale test embankments constructed over soft Bangkok clay. The control embankment was unreinforced while the other two embankments were rein- forced with multiple layers of low-strength geotextile and with a single layer of high- strength geotextile, respectively. The analyses results confirmed the embankment per- formance
Communications in Physics, 2014
Using doctor-blade technique, followed by electrochemical deposition, nanocomposite WO\(_{3}\)-Ti... more Using doctor-blade technique, followed by electrochemical deposition, nanocomposite WO\(_{3}\)-TiO\(_{2}\) films were prepared. Structure, morphology and composition ratio of the nanocomposite films were characterized by a comprehensive analyzing the SEM, EDX, XRD and Raman scattering results. The reversible coloration and bleaching of TiO\(_{2}\)/ITO and WO\(_{3}\)-TiO\(_{2}\)/ITO electrodes were demonstrated. The ECD coloration efficiency of WO\(_{3}\)-TiO\(_{2}\)/ITO was found to be much larger (55.1 cm\(^{2}\times \text{C}^{ - 1})\) than that of TiO\(_{2}\)/ITO (34.3 cm\(^{2}\times \text{C}^{ - 1})\). The resulting nanostructured composites enables the coloration efficiency of the WO\(_{3}\)-TiO\(_{2}\) film to be considerably improved. The results suggest a potential application of the nanocomposites of two electrochromic oxides in large-area energy-efficiency (or smart) windows.
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Papers by Tran Thi Thanh Thao (FGW HCM)