Synthesis of metakaolin alkali based geopolymer for Hydrogen adsorption study

Hydrogen is not only an energy carrier but it’s also one of the substituting source that can be replace fossil fuels. Therefore possible adsorbent extensively being tested for better hydrogen adsorption. Recently, there are researches on hydrogen storage by using developed materials such as complex hydride, carbon nanotubes, zeolites and alloy metal. Geopolymer is proposed as a potential adsorbent due to economically and environmental friendly properties and lower cost compared to other developed materials and also derived from industrial waste. Thus, the scope of the hydrogen storage is wide, the author has narrowed down his study on hydrogen adsorption by using synthesized metakaolin alkali based geopolymer. Different molarity of alkali activator of sodium hydroxide (NaOH) of 8M, 10M and 12M were used to synthesis raw material of metakaolin in order to find which one is the best parameter for hydrogen adsorption uptake. Result shown that hydrogen adsorption on least molarity of alkali activator (8M), it adsorbs about 1.34 weight percentage though slightly lower than alkali activator of 12M which has about 1.49 weight percent. In nutshell, as molarity of the alkali activator (NaOH) increases, the hydrogen adsorption (wt%) also increases

The Maturing of E-Commerce Education in Our Curricula

When the power of e-commerce was unleashed for the benefit of the society, the evolution of the business world started. Businesses used electronic data interchange (EDI) to reduce costs, increase the speed, and increase the accuracy of business documents when doing business with other companies. Consumers were no longer tied to local stores or mail catalogues for retail purchases. E-commerce became a new retail outlet in the late 1990s. Educational institutions, for their part, responded by initiating e-commerce related research and curricula. Since those early days of e-commerce education, e-commerce education has matured. It has transformed from scattered courses and is now manifested in undergraduate and graduate degree programs

Synthesis of metakaolin alkali based geopolymer for Hydrogen adsorption study

Hydrogen is not only an energy carrier but it’s also one of the substituting source that can be replace fossil fuels. Therefore possible adsorbent extensively being tested for better hydrogen adsorption. Recently, there are researches on hydrogen storage by using developed materials such as complex hydride, carbon nanotubes, zeolites and alloy metal. Geopolymer is proposed as a potential adsorbent due to economically and environmental friendly properties and lower cost compared to other developed materials and also derived from industrial waste. Thus, the scope of the hydrogen storage is wide, the author has narrowed down his study on hydrogen adsorption by using synthesized metakaolin alkali based geopolymer. Different molarity of alkali activator of sodium hydroxide (NaOH) of 8M, 10M and 12M were used to synthesis raw material of metakaolin in order to find which one is the best parameter for hydrogen adsorption uptake. Result shown that hydrogen adsorption on least molarity of alkali activator (8M), it adsorbs about 1.34 weight percentage though slightly lower than alkali activator of 12M which has about 1.49 weight percent. In nutshell, as molarity of the alkali activator (NaOH) increases, the hydrogen adsorption (wt%) also increases

Multi-agent system with iterative auction mechanism for master bay plan problem in marine logistics

The support of containerization to trade development demands an efficient solution method for the container loading problem in order to reduce shipment and handling time. Hence, the stowage planning of containers is critical to provide speedy delivery of resources from the area of supply to the area of demand. Moreover, information on container terminal activities, structure of ship, and characteristics of containers is distributed among stowage planners. This information imposes constraints, and so the master bay plan problem (MBPP) becomes NP-hard. Therefore, a multi-agent systems (MAS) methodology is designed to effectively communicate the information and solve the MBPP sustainably. In the designed MAS methodology, an information exchange system (IES) is created for stowage planners to bid for ship slots in each experimental iterative combinatorial auction (ICA) market. The winner in the ICA experiments is provided with the ship slots, and the entire bay plan is prepared. Further, the ship-turnaround time is validated using the data obtained from the benchmark problem

Social Networks Privacy-Preserving On Collaborative Tagging and Spam Filter Using Naive Bayes Algorithm

ABSTRACT: Collaborative tagging is one of the most popular services available in social networks, and it allows user to classify either online or offline resources based on their feedback, deliver in the form of tags. Although tags may not be secret information the wide use of collaborative tagging services increases the risk, thereby seriously compromising user privacy. In this paper, we make a contribution towards the development of a privactivey-preserving collaborative tagging service, by showing how a specific privacy-enhancing technology, namely tag suppression, can be used to protect end-user privacy.In most group key management protocols, group members are authenticated by the group leader "one by one." That is, n authentication messages are required to authenticate n group members. Then, these members share one common group key for the group communication. In our batch authentication protocols, users are simultaneously authenticated by the requester that is, one authentication message is required to authenticate n session peers.Spam is commonly defined as irrelevant comments or text, the goal of spam is to distinguish between irrelevant and relevant comments. Naive Bayes classifiers are among the most successful known algorithms for learning to classify text documents.Bayesian spam filtering has become a popular mechanism to distinguish illegitimate spam texts from legitimate text

(±)-trans-5-Benzoyl-2-(1H-indol-3-yl)-4-phenyl-4,5-dihydro­furan-3-carbonitrile

The furan ring in the title compound, C26H18N2O2, is twisted about the C(H)—C(H) bond. The mol­ecular structure is stabilized by an intra­molecular C—H⋯O inter­action, which generates an S(6) ring motif. The presence of N—H⋯N hydrogen bonds leads to inversion dimers, which are stabilized in the crystal packing by C—H⋯O and C—H⋯π inter­actions, forming layers that stack along the a axis

5-Benzoyl-2-(1H-indol-3-yl)-4-(4-methyl­phen­yl)-4,5-dihydro­furan-3-carbonitrile

The furan ring in the title compound, C27H20N2O2, adopts a twisted conformation about the sp 3—sp 3 bond. The mol­ecular structure is stabilized by an intra­molecular C—H⋯O inter­action which generates an S(6) ring motif. The crystal packing is stabilized by N—H⋯O and C—H⋯O inter­actions generating centrosymmetric R 2 2(18) and C(6) chain motifs, respectively. A weak C—H⋯π inter­action is also observed

Evaluation of uroprotective efficacy of amifostine against cyclophosphamide induced hemorrhagic cystitis

The role of amifostine in the prevention of cyclophosphamide-induced hemorrhagic cystitis (HC) was evaluated in the rat model. Urinary bladders from control rats that received no drugs (group I) were compared with those from rats receiving cyclophosphamide alone at a dose of 150 mg/kg (group II), and two other groups receiving amifostine at 100 mg/kg (group III) and 200 mg/kg (group IV), 15 min prior to cyclophosphamide. Bladders were assessed macroscopically and histologically at 24 h and after 7 days. All the animals that received cyclophosphamide alone developed severe HC. On the basis of the scores of macroscopic and histologic changes, animals that received amifostine showed excellent uroprotection. Only 2/6 rats in group III and 1/6 rats in group IV developed mild HC at 24 h. None of the rats in either of these groups showed any evidence of HC at 7 days. It is concluded that amifostine protects the urothelium against cyclophosphamide-induced HC

A Performance-Based Scenario Methodology to Assess Collaborative Networks Business Model Dynamicity

[EN] In today's business marketplace many enterprises collaborate forming a collaborative network (CN) in order to achieve competitive and sustainable advantages. In this context, CNs should have not only well-defined business models but also mechanisms and tools that help them out to assess such business models as well as other CN operations at their early stages. Due to shorter life-cycles and to the current fierce competition such an evaluation should be made as quickly as possible and analyzing real data rather than based on opinions and subjective judgments. This paper presents the application of a methodology that allows such an assessment as well as the generation of business scenarios based on the performance of the CN. Then, it first defines the appropriate CN key performance indicators (KPIs), gathering data for a certain time-period; then, it applies multivariate techniques to this data, identifying relationships between the KPIs, and being able to build the timely evolution of the CN based on this data; next, it is able to design a business scenario based on the timely evolution that the CN should have according to its business models and operations results achieved so far. With all this additional information decision-makers could decide whether the CN's business models succeeded or not so far and what actions to take in order to achieve the future desirable scenario.This work has been developed within the research project called “Design of business scenarios to improve the efficiency and management of industrial supply chain” (reference GV/2013/045).Rodríguez Rodríguez, R.; Alfaro Saiz, JJ.; Verdecho Sáez, MJ. (2015). A Performance-Based Scenario Methodology to Assess Collaborative Networks Business Model Dynamicity. IFIP Advances in Information and Communication Technology. 463:511-517. https://doi.org/10.1007/978-3-319-24141-8_47S511517463Achtenhagen, L., Melin, L., Naldi, L.: Dynamics of business models – strategizing, critical capabilities and activities for sustained value creation. Long Range Plann. 46, 427–442 (2013)Chesbrough, H.: Business model innovation: opportunities and barriers. Long Range Plann. 43, 354–363 (2010)Chermack, T.J.: Studying scenario planning: theory, research, suggestions, and hypotheses. Technol. Forecast. Soc. Change 72, 59–73 (2005)Harries, C.: Correspondence to what? Coherence to what? What is good scenario-based decision making? Technol. Forecast. Soc. Change 70, 797–817 (2003)Gunasekaran, A., Patel, C., Tirtiroglu, E.: Performance measures and metrics in a supply chain environment. Int. J. Oper. Prod. Manage. 21, 71–87 (2001)Bullinger, H.J., Kühner, M., Hoof, A.V.: Analysing supply chain performance using a balanced measurement method. Int. J. Prod. Res. 40, 3533–3543 (2002)Folan, P., Browne, J.: Development of an extended enterprise performance measurement system. Prod. Plann. Control 16, 531–544 (2005)Fink, A., Marr, B., Siebe, A., Khule, J.-P.: The future scorecard: combining external and internal scenarios to create strategic foresight. Manage. Decis. 43, 360–381 (2005)Othman, R.: Enhancing the effectiveness of the balanced scorecard with scenario planning. Int. J. Prod. Perform. Manage. 57, 259–266 (2008)Rodriguez-Rodriguez, R., Saiz, J.J.A., Bas, A.O., Carot, J.M., Jabaloyes, J.M.: Building internal business scenarios based on real data from a performance measurement system. Technol. Forecast. Soc. Change 77, 50–62 (2010

Characterization of the domestic goat γδ T cell receptor gene loci and gene usage

Goats and cattle diverged 30 million years ago but retain similarities in immune system genes. Here, the caprine T cell receptor (TCR) gene loci and transcription of its genes were examined and compared to cattle. We annotated the TCR loci using an improved genome assembly (ARS1) of a highly homozygous San Clemente goat. This assembly has already proven useful for describing other immune system genes including antibody and leucocyte receptors. Both the TCRγ (TRG) and TCRδ (TRD) loci were similarly organized in goats as in cattle and the gene sequences were highly conserved. However, the number of genes varied slightly as a result of duplications and differences occurred in mutations resulting in pseudogenes. WC1+ γδ T cells in cattle have been shown to use TCRγ genes from only one of the six available cassettes. The structure of that Cγ gene product is unique and may be necessary to interact with WC1 for signal transduction following antigen ligation. Using RT-PCR and PacBio sequencing, we observed the same restriction for goat WC1+ γδ T cells. In contrast, caprine WC1+ and WC1− γδ T cell populations had a diverse TCRδ gene usage although the propensity for particular gene usage differed between the two cell populations. Noncanonical recombination signal sequences (RSS) largely correlated with restricted expression of TCRγ and δ genes. Finally, caprine γδ T cells were found to incorporate multiple TRD diversity gene sequences in a single transcript, an unusual feature among mammals but also previously observed in cattle