GSTF Digital Library (GSTF-DL): Open Journal Systems (Global Science and Technology Forum)
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Strength Characteristics of SIFCON Using Manufactured Sand for Elevated Temperature
No full textThe four components used in producing cement concrete generally are cement, water, sand and aggregate. But, natural sand is being depleted at present and also becoming costly, particularly in the rapidly developing countries like India. Hence, there is a necessity to develop a substitute for the fine sand for use in the concrete mixture, one of which is the manufactured sand developed from locally available quarry stone. Therefore, in this study, investigations are carried out to determine the mechanical properties of manufactured sand and Slurry Infiltrated Fibrous Concrete (SIFCON) made with the manufactured sand. Also, SIFCON specimens are exposed to the elevated temperatures for a period of one hour in this study. The fibre additions in SIFCON vary from 8% to 12% in steps of 2%. The strength properties such as compression, split tensile and flexural strength are studied in the laboratory. The higher the fibre content, the better the results that are achieved in accordance with various strengths: compressive, split tensile and flexural strength. When the specimens are exposed to the elevated temperatures the strength of specimens increases gradually up to a temperature of 300o C. Thereafter, the strength decreases
Riverfront Development in Indian Cities: The Missing Link
No full textPlanned development and redevelopment ofriverfronts are a recent phenomenon in the Indian developmentlandscape. Contemporary riverfront development projectsgenerally aim to boost the economy of riverfront cities and areseen as tools to upgrade and improve the image where social andecological benefits are offshoots of development efforts. Cities inIndia have diverse conditions, leading to unique contexts whichdemand different approach to each development. The paperdiscusses two issues for riverfront developments in India thatappear to be the missing links for the projects from planning andorganizational perspective. Public participation and further apropelling body identified from the stakeholders which canutilize their specific expertise for supervision, implementationand maintenance of these projects to bring fast and effectiveresults. Consequently a corresponding change in planningprocess to accommodate the solutions are suggested
A Comparative Analysis of Vietnamese and Chinese Stock Market Using Hurst Exponent Analysis
Full text linkVietnamese economy has developed tremendously since the early 1990s, keeping its GDP growth rate above 7% for a long time. After a few years’ slow down due to the Asian Crisis, it re-developed after 2002. Unfortunately, since the Subprime Loan Crisis broke out in 2007, its economy development became slow and had shown no sign of recovery. Before the global crisis, HoChiMinh Stock Exchanges was established in 2000 and five years later, in the capital of Vietnam – Hanoi, the Hanoi Stock Exchanges was opened. These two markets did not evolve as quickly as expected. On the contrary, it is still underdeveloped even though it has existed for more than ten years. This paper discusses and analyses the overview and present status of Vietnamese Stock Market. By comparing it with the Chinese Stock Market, the similarities and differences between the two markets are determined. Then, the reasons of underdevelopment of Vietnamese Stock Market are examined
Manifestation of Creative Clay in Kindergarten Language Courses
Full text linkDue to the love for art and demand for courses, a group of nursery department students from a university of science and technology have found that most kindergarten language courses commenced in kindergartens guide children through learning with the use of Chinese phonetic symbols or text-based flashcards. However, the combination of art and language will enable children to engage in hands-on art creation to achieve language learning in a pleasant manner. Therefore, the process of incorporating clay creation in language learning and teaching involves entering the kindergarten teaching site to implement specific aesthetics practices. With middle-grade children from a kindergarten in Tainan City as teaching targets, 60-minute clay creative language teaching was commenced every week. The teaching topics include: I Am A Teeth Model, I Am A Healthy Child, Collect Trees and Do It Together, which were implemented for a period of four weeks. Of the twelve children in total, nine were boys and three were girls aged between four years old and before the age for entering elementary school. The action research, coupled with the research and education site were adopted to continue to reflect on actions, act on the reflections, and explore the clay creative intervention of language teaching. In addition, feasible courses were planned to deepen children’s impression of language learning through clay creativity. With the identities of the homeroom teacher and the observer actually involved in teaching activities, through observations, records, reflective notes, and other methods, the course of teaching was recorded by incorporating clay creativity and children language teaching in order to fully present the actual course of teaching. Research results show that during the process of language learning, the children fully turned their ideas into action through hands-on clay play and freely created the faces of vocabulary created out of their own imagination, thus enabling the children to quickly familiarize and understand the vocabulary, enhancing their memory for the language, eliciting the children’s creativity, enabling them to improve hand flexibility and observation, and further inspiring their art talent and giving them a sense of honor from works created. It is a type of aesthetic teaching that is both educational and entertaining
The Relations of Multiple Intelligences and Foreign Language Learning
No full textThis study analyzes the relations between foreign language learners’ multiple intelligences (MI) and foreign language learning. A quasi-experimental design was applied for the study. The following were the findings after the analysis of the collected research data: female learners show more preference to languages than male learners; linguistic intelligence, bodily-kinesthetic intelligence, and musical intelligence are positively related. Based on the research results, the study provides suggestions to instructors, learners, and researchers for future language learning courses and research
A Pilot, Web-Based HIV/STI Prevention Intervention Targeting At-Risk Mexican American Adolescents: Feasibility, Acceptability, and Lessons Learned
Full text linkInformation technology provides new avenues to increase opportunities to deliver HIV/STI prevention interventions in a confidential, sensitive, and engaging manner for youth. While technology-based HIV/STI interventions show promise in preventing HIV/STI among different populations, few have targeted young Latinas. This pilot study examined the feasibility and acceptability of a bilingual, web-based HIV/STI prevention intervention among Latino females aged 15-19. We used a mix-method approach, including a prospective 2-group design with 3 repeated measures, and a post-intervention focus group discussion. We recruited 14 participants from an alternative high school and randomized into each study condition. Participants took 5 structurally equivalent modules focusing on either HIV/STI prevention (intervention) or nutrition/exercise (comparison) and completed assessments before the intervention, immediately post-intervention, and 2 months post-intervention. The findings suggested that the intervention had high levels of feasibility and acceptability. We discuss the keys to success, challenges encountered, and future direction
Design and Failure Study of a Papertube Structure
No full textThis paper showcases student's work on a papertubestructure. An attempt was made to analyze and design the smallscale structure and its failure mechanism was monitored. Thepaper presents the analysis done for the structure, its failurepattern and the key learning from the exercise. It concludes withsuggestions to successfully construct such a structure. Archesbeing the fundamental element of the designed structure areanalyzed under various geometrical and design conditions andcompared in terms of reaction forces and bending momentdiagrams, based upon which section requirement was decided.Strength parameters of papertube were compared to otherorganic materials and a concise study on constructionmethodology and design techniques of existing papertubestructures was carried out
Interactions of Actors’ Interests and Power in The Governance System The Case of Co-location of University Campuses in Trondheim, Norway
No full textThis paper aims to understand the power and governance questions in the case of co-location of university (NTNU) campuses in the city of Trondheim. NTNU has three main campuses; 1. Gløshaugen, the technical campus, 2. Dragvoll, the social and human science campus, and 3. Øya, the hospital and medical campus. Since NTNU was built, the co-location of its campuses was on the agenda in order to increase the interdisciplinary and collaboration between them. In 2000s, the desire of co-locating the campuses was reinforced by the new trend of knowledge-based urban development in Trondheim. A large part of the higher education and research institutions, including Gløshaugen and Øya campuses, has been located in the area close to Trondheim city center. The vicinity of these institutions embarks on a strategic mission to firmly encourage and nurture locally focused innovation, science and creativity within the context of expanding knowledge economy. Subsequently, the municipality’s wish is to physically and institutionally combine the functions of a science park with civic and residential functions by opening up campus areas for the outside world, integrating university activities with the rest of the city. Regarding the co-location of campuses, a political mainstream is to move (re-locate) both administration and education affairs of NTNU’s Dragvoll campus to the Gløshaugen- Øya area (distance of 5 km). This process of moving is an intricate evolution that brings different social, economic and ecological issues into question that has provided an implicit testimony to the broad range of political interests and power issues. The latent conflict between different interests and power levels have permeated multi-stakeholder discussions at the national and local level and undermined the process of decision-making for nearly 15 years. The process of decision-making has continuously been influenced by the power of actors in terms of their position, personality and opportunity they grasp for actions. The findings of this research attract attentions to the importance of networking with individuals, who have the necessary power and interest, in order to understand the governance structure and the mechanism for its change in the specific period of time
Simulation aided Design : Using “CFD simulation – design loop†for Better Thermal Environment
No full textAt present, early research has been conducted in thefields of the urban heat island effect and urban microclimate ondata collection and valuation, making recommendations forpolicymaking and urban planning in tropical cities, e.g.Singapore. However, it is still rather difficult for urban designersto apply the findings without useful tools and actionableknowledge, even though the basis for such has been produced byurban climate scientists. On this basis, this study focuses ontropical outdoor space from the interdisciplinary perspective ofurban design and urban climate to explore the practical methodof CFD simulation – design loop for allowing urban designeraccess to the urban microclimate and thus applying theknowledge to create public space for citizens that has enhancedthermal comfort as well as being aesthetically pleasing. Firstly,the two dimensions of thermal comfort – social cultural andtechnological – are clarified. The study then summarizes theproblem of current urban climate research that relies on lowresolutionand abstract models, and the development of CFDsimulation as an applicable solution. The CFD simulation –design loop is thus proposed as a useful method for research andpractice by urban designers. Finally, this study suggests futuresystematic research on measurable elements of public space totake this important area forward
Development and Validation of Stability Indicating RP HPLC method for the estimation of armodafinil and Characterization of its base Degradation Product by LC-MS/MS
Full text linkThe present work focuses on the development and validation of a rapid, selective and reliable stability indicating reverse phase High Performance Liquid Chromatographic method for the quantitative analysis of Armodafinil (ARM). Armodafinil is a eugeroics drug used for treatment of narcolepsy and shift work sleep disorder and also as an adjunctive treatment for obstructive sleep apnea. The separation was carried out on a Hibar Purospher C18 (250 mm × 4.6 mm; 5μ) column by using 0.01 M ammonium formate (pH 4.5, Adjusted with acetic acid) and methanol as mobile phase in the ratio of 45:55 % v/v. The flow rate was maintained at 1 mL/min and the eluents were monitored at 220 nm. Stress studies were carried out with 1 mg/mL of the drug solution, starting with mild conditions and followed by intrinsic conditions to achieve sufficient degradation. Armodafinil underwent extensive degradation under basic hydrolysis condition. The unknown degradation product formed (DP I; 6.59±0.2 min) under the basic degradation condition was separated on a semi preparative HPLC, characterized by UPLC-Q-TOF and its fragmentation pathway was proposed. The proposed structure of the degradation product was confirmed by HRMS analysis. The developed stability indicating LC method was validated with respect to accuracy, precision, specificity/selectivity and linearity. The degradation product was characterized and reported