• 제목/요약/키워드: Technological Advances

검색결과 324건 처리시간 0.024초

Enhancing STEM education using nanotechnology: Integrating nanoscale concepts into K-12 curriculum

  • Yawen Su;Maryam Shokravi;M.H. Fakhar
    • Advances in nano research
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    • 제17권1호
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    • pp.87-94
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    • 2024
  • Nanotechnology is one of the leading edges of science and technology today, holding out the promise for revolutionary advances in just about any discipline. With the integration of nanoscale concepts into K-12 STEM education comes a special opportunity pertaining to the cultivation of future innovators and scientists who are more adept at traveling in this burgeoning field. It discusses some strategies and frameworks for effectively bringing nanotechnology into the K-12 curriculum. Hands-on activities, interdisciplinary approaches, and age-appropriate educational materials have been used with an emphasis on improving student engagement and enhancing understanding in nanoscale phenomena. Thus, early exposure to the principles of nanotechnology can be effectively used by teachers to develop curiosity, critical thinking, and problem-solving skills, which are necessary for technological advancement. These results highlight the potential of nanotechnology education integration in the development of future STEM professionals. It results in an increase in the enrollment rate. Hence, this proves that there is a lasting impact of the intervention on the choice that students made while in school.

Hepatoprotective activity of methanol extracts of Glinus oppositifolius and Trianthema decandra against paracetamol induced liver damage

  • Gupta, M;Mazumder, UK;Haldar, PK;Manikandan, L;Senthilkumar, GP;Kandar, CC
    • Advances in Traditional Medicine
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    • 제7권1호
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    • pp.74-78
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    • 2007
  • The plants, Trianthema decandra and Glinus oppositifolius are commonly used by tribal people in India for the treatment of liver diseases. Hepatoprotective activity of methanol extracts of Glinus oppositifolius and Trianthema decandra at the dose of 250 and 500 mg/kg body weight administered orally was evaluated against paracetamol induced liver damage in rats. Biochemical parameters such as serum glutamate oxaloacetate transaminase, serum glutamate pyruvate transaminase, serum alkaline phosphatase, bilirubin, total serum protein, lipid peroxide and glutathione content of the liver were estimated to determine liver function and metabolism. From the biochemical observations, it was concluded that methanol extracts of Glinus oppositifolius and Trianthema decandra significantly restored the altered biochemical parameters towards normal condition in paracetamol induced liver damage.

특허인용분석을 통한 한국의 기술혁신 (Technology Innovation in Korea through Patent Citation Analysis)

  • 이우형;안규정;이명호
    • 한국경영과학회:학술대회논문집
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    • 한국경영과학회/대한산업공학회 2003년도 춘계공동학술대회
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    • pp.1007-1013
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    • 2003
  • It is becoming increasingly clear that participation in the 'new economy' driven by scientific and technological advances will be the way to achieve global prosperity in the 21st century. An analysis of the patents assigned to a particular country, using the techniques in this study, provides a means to objectively assess the potential for participating in that prosperity, and to identify strong and weak area in technological potential. The analyses are based on Korean-invented patents issued in the United States, and on the citation analysis techniques that link these patents with other patents.

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Protective effect of Indigofera aspalathoides in chemical induced gastric mucosal lesions in rats

  • Gupta, M;Mazumder, UK;Haldar, PK;Kander, CC;Manikandan, L;Senthilkumar, GP
    • Advances in Traditional Medicine
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    • 제6권1호
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    • pp.53-57
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    • 2006
  • The plant Indigofera aspalathoides is used by a large number of tribes in India for the treatment of various hepatic disorders and abscesses. The methanol extract of Indigofera aspalathoides (MEIA) was evaluated for its protective effects on gastric mucosal lesion in Wister albino rats against indomethacin, histamine and ethanol induced gastric mucosal damage. The response to MEIA was assessed using the ulcer index, thiobarbituric acid reactive substance (TBARS), and glutahione level. MEIA pretreatment showed protection against chemical induced gastric mucosal damage, a significant reduction in the ulcer index and TBARS activity and increase glutathione level as compared with that of standard drugs.

Hepatoprotective activity of Indigofera aspalathoides extract against CCl4-induced liver damage

  • Gupta, M.;Mazumder, U.K.;Haldar, P.K.;Manikandan, L.;Senthilkumar, G.P.;Kander, C.C.
    • Advances in Traditional Medicine
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    • 제4권2호
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    • pp.100-103
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    • 2004
  • The plant Indigofera aspalathoides are used by a large number of tribes in India for the treatment of various hepatic disorder. The methanol extract of Indigofera aspalathoides (MEIA) was evaluated for its effect on carbontetrachloride $(CCl_{4})$ induced liver damage. Biochemical parameters such as serum glutamine oxaloacetate trasaminase (SGOT), serum glutamine pyruvate transaminase (SGPT), serum alkaline phosphatase (ALP), total serum protein (TP), thiobarbituric acid reactive substances (TBRS) and glutathione content of the liver were estimated to assess liver function and metabolism. Biochemical observations suggest that methanol extract of Indigofera aspalathoides (MEIA) significantly restored the liver function and metabolism towards normal condition in $CCl_{4}$-induced hepatic damage.

ETRI AI 실행전략 2: AI 반도체 및 컴퓨팅시스템 기술경쟁력 강화 (ETRI AI Strategy #2: Strengthening Competencies in AI Semiconductor & Computing Technologies)

  • 최새솔;연승준
    • 전자통신동향분석
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    • 제35권7호
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    • pp.13-22
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    • 2020
  • There is no denying that computing power has been a crucial driving force behind the development of artificial intelligence today. In addition, artificial intelligence (AI) semiconductors and computing systems are perceived to have promising industrial value in the market along with rapid technological advances. Therefore, success in this field is also meaningful to the nation's growth and competitiveness. In this context, ETRI's AI strategy proposes implementation directions and tasks with the aim of strengthening the technological competitiveness of AI semiconductors and computing systems. The paper contains a brief background of ETRI's AI Strategy #2, research and development trends, and key tasks in four major areas: 1) AI processors, 2) AI computing systems, 3) neuromorphic computing, and 4) quantum computing.

Flexural studies on reinforced geopolymer concrete beams under pure bending

  • Sreenivasulu, C.;Jawahar, J. Guru;Sashidhar, C.
    • Advances in concrete construction
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    • 제8권1호
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    • pp.33-37
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    • 2019
  • The present investigation is mainly focused on studying the flexural behavior of reinforced geopolymer concrete (RGPC) beams under pure bending. In this study, copper slag (CS) was used as a partial replacement of fine aggregate. Sand and CS were blended in different proportions (100:0, 80:20, 60:40 and 40:60) (sand:CS) by weight. Fly ash and ground granulated blast furnace slag (GGBS) were used as binders and combination of sodium hydroxide (8M) and sodium silicate solution were used for activating the binders. The reinforcement of RGPC beam was designed as per guidelines given in the IS 456-2000 and tested under pure bending (two-point loading) after 28 days of ambient curing. After conducting two point load test the flexural parameters viz., moment carrying capacity, ultimate load, service load, cracking moment, cracking load, crack pattern and ultimate deflection were studied. From the results, it is concluded that RGPC beams have shown better performance up to 60% of CS replacement.

Optimized biodiesel yield in a hydrodynamic cavitation reactor using response surface methodology

  • Neeraj Budhraja;R.S. Mishra
    • Advances in Energy Research
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    • 제8권4호
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    • pp.233-241
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    • 2022
  • Biodiesel is a non-polluting and non-toxic energy source that can replace conventional diesel. However, the higher production cost and raw material scarcity became challenges that obstruct the commercialization of biodiesel production. In the current investigation, fried cooking oil is used for biodiesel production in a hydrodynamic cavitation reactor, thus enhancing raw material availability and helping better waste oil disposal. However, due to the cavitation effect inside the reactor, the hydrodynamic cavitation reactor can give biodiesel yield above 98%. Thus, the use of orifice plates (having a different number of holes for cavitation) in the reactor shows more than 90% biodiesel yield within 10 mins of a time interval. The effects of rising temperature at different molar ratios are also investigated. The five-hole plate achieves the highest yield for a 4.5:1 molar ratio at 65℃. And the similar result is predicted by the response surface methodology model; however, the optimized yield is obtained at 60℃. The investigation will help understand the effect of hydrodynamic cavitation on biodiesel yield at different molar ratios and elevated temperatures.

Identification and SWOT analysis of ecological and security issues of battery electric vehicles

  • Sanjeev Kumar;Amit Pal
    • Advances in Energy Research
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    • 제8권3호
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    • pp.165-174
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    • 2022
  • Environmental sustainability is critical; else, the whole planet would face climatic disasters in the near future. A transportation system based on electric vehicles is assumed to be capable of providing long-term mobility. However, despite several attempts by national and international authorities, a great aim could not be met in India or the rest of the globe. Existing electric cars have a number of limits and obstacles. This report highlighted significant environmental and safety-related constraints that contribute to the low adoption rate of BEVs in India. A SWOT analysis was also carried out to identify the important elements influencing the future of BEV penetration in India.

Comparative assessment of surface and ground water quality using geoinformatics

  • Giridhar, M.V.S.S.;Mohan, Shyama;Kumar, D. Ajay
    • Advances in environmental research
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    • 제9권3호
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    • pp.151-160
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    • 2020
  • Water quality demonstrates physical, chemical and biological characteristics of water. The quality of surface and groundwater is currently an important concern with population growth and industrialization. Over exploitation of water resources due to demand is causing the deterioration of surface water and ground water. Periodic water quality testing must be carried out to protect our water resources. The present research analyses the spatial variation of surface water and groundwater in and around the lakes of Hyderabad. Twenty-Seven lakes and their neighboring bore water samples are obtained for water quality monitoring. Samples are evaluated for specific physico-chemical parameters such as pH, Total Dissolved Solids (TDS), Cl, SO4, Na, K, Ca, Mg, and Total Hardness (TH). The spatial variation of water quality parameters for the 27 lakes and groundwater were analysed. Correlation and multiple regression analysis were carried out to determine comparative study of lake and ground water. The study found that most of the lakes were polluted and this had an impact on surrounding ground water.