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Gupta, Ankit
- Comparative Study of Various Methods for Extraction of Antioxidant and Antibacterial Compounds from Plant Seeds
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Journal of Natural Remedies, Vol 12, No 2 (2012), Pagination: 162-173Abstract
Extracts from seeds of five different plants were prepared in water, methanol, and ethanol by employing five different methods of extraction viz. Soxhlet method, ultrasonication, extraction by continuous shaking at room temperature, and microwave assisted extraction- with and without intermittent cooling. All these extracts were compared with respect to extraction efficiency, total phenol content, total flavonoid content, antioxidant capacity, and antibacterial activity. Soxhlet method proved best in terms of high extraction efficiency, and extraction of phenolic compounds. Microwave assisted extraction with intermittent cooling (MAE), room temperature extraction by shaking (ERT), and ulrasonication assisted extraction (UAE) proved good at extracting antibacterial compounds from plant seeds. Latter also proved effective at extracting antioxidant compounds. Extraction efficiency was found to have no notable correlation with any of the parameters assayed. Methanol proved most suitable solvent for extraction of flavonoids.Keywords
Extraction, Microwave Assisted Extraction (MAE), Ultrasonication Assisted Extraction (UAE), Seeds, FlavonoidsFull Text
- Corporate Governance Challenges in Business Enterprises
Abstract Views :156 |
PDF Views:85
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SAMVAD: International Journal of Management, Vol 1 (2010), Pagination: 49-54Abstract
No Abstract.Full Text
- Triple Bottom Line (TBL a" 3BL)
Abstract Views :199 |
PDF Views:117
Authors
Affiliations
1 Finance, IN
1 Finance, IN
Source
SAMVAD: International Journal of Management, Vol 2 (2011), Pagination: 71-77Abstract
Traditionally, businesses were solely operated to generate revenues, maximize cashflows, distribute dividends, and produce profits. It was all about the bottom line and the bottom line was about profits.With the advent of social entrepreneurship and Corporate Social Responsibility (CSR), a new way of measuring business success has developed. It is referred to as the Triple Bottom Line. It measures the success of a business, not only by profits but also by social and environmental capital.
It is contradicting to the Milton Friedman's economic model, which has profit as the single bottom line, ("The social responsibility of business is to increase its profits" - Milton Friedman, 1970) the triple bottom line has the three Ps - People, Planet and Profit, at its core.
This paper tries to provide an insight for institutions and its management to evaluate various perspectives of sustainable growth representative, Triple Bottom Line.
Keywords
TBL, CSR, 3Ps, Cradle to Grave.Full Text
- Modelling U-Turning Behaviour of Vehicles at Mid-Block Median Openings in Multilane Urban Roads
Abstract Views :265 |
PDF Views:86
Authors
Affiliations
1 Department of Civil Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, IN
1 Department of Civil Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, IN
Source
Current Science, Vol 114, No 07 (2018), Pagination: 1461-1473Abstract
Gap acceptance and lateral placing of vehicles are considered as prime parameters for analysing the behaviour of U-turning in vehicles at un-signalized median opening in urban areas. Critical gap is the sole parameter in gap acceptance phenomenon where critical position gives the vehicle’s location during U-turn operation. Data for this study were collected using video photography at six median openings on a sixlane road and three median openings on a four-lane road from two different cities of India. Data as extracted by categorizing the traffic stream into five different classes such as two-wheelers, three-wheelers, car/SUVs, LCVs (light commercial vehicles) and HCVs (heavy commercial vehicles). Three different methodologies (namely the traditional method, INAFOGA and modified Raff’s method) were utilized to estimate the critical gap. Critical position of vehicles is estimated using the markings on the pavement surface. Regression technique was used for modelling critical gap and position using different variables for each motorized mode. All the proposed models have a high coefficient of determination value which indicates its high significance level. Modelling of critical position for 3-wheelers was not framed as the P-value for each variable was higher than 0.05. The reason could be the randomness in data because of the undisciplined lateral movement of three-wheelers. A design recommendation for right turn pocket lanes near the median opening area is proposed especially for U-turning traffic based on the percentage of the U-turning traffic and maximum critical position of vehicles from the median edge.Keywords
Critical Position, Critical Gap, Gap Acceptance, Median Opening, U-Turning Vehicles.Full Text
References
- Sugiarto, S., Limanoond, T. and Nakatsuji, T., Dropped in capacity and traffic speed of urban arterial: a case study at U-turn section in Aceh Province, Indonesia Aceh. Int. J. Sci. Technol., 2012, 1(3), 86–93.
- Hamed, M. M., Easa, S. and Batayneh, R. R., Disaggregate gapacceptance model for unsignalized T-intersections. J. Transp. Eng., ASCE, 1997, 123(1), 36–42.
- Gurupackiam, S. and Lee, J. S., Empirical study of accepted gap and lane change duration within arterial traffic under recurrent and non-recurrent congestion. Int. J. Traffic Transp. Eng., 2012, 2(4), 306–322.
- Brilon, W., Koenig, R. and Troutbeck, R. J., Useful estimation procedures for critical gaps. Transp. Res. Part A: Policy Pract., 1999, 33, 161–186.
- Ashalatha, R. and Chandra, S., Critical gap through clearing behaviour of drivers at un-signalised intersections. J. Civil Eng., KSCE, 2011, 15(8), 1427–1434.
- Datta, S., Modelling Critical Gaps for U-turn Vehicles at Median Openings under Indian Mixed Traffic Conditions, Department of Civil Engineering, National Institute of Technology, Rourkela, 2014.
- Datta, S. and Bhuyan, P. K., Which method is appropriateINFOGA or probability equilibrium for critical gap estimation of U-turn vehicles at median openings in urban Indian context? Institute of Research Engineers and Doctors, ISBN: 978-1-63248-028-6; doi:10.15224/978-1-63248-028-6-03-92.
- Sharma, V. K., Mondal, S. and Gupta, A., Analysis of U-turning behaviour of vehicles at mid-block median opening in six lane urban road: a case study. Int. J. Traffic Transport. Eng., 2017, 7(2), 243–255.
- Shihan, H. and Mohammed, H. K., Traffic system studies at median U-turn in Baghdad city employing u-sim model. J. Eng, Develop., 2009, 13(1).
- Dash, S., Mohapatra, S. S. and Dey, P. P., Estimation of critical gap of U-turns at uncontrolled median openings. Transp. Lett., Int. J. Transp. Res., 2017.
- Cornelie, J. G., Driel, V., Ragnhild, J. D., Martin, F. A. M. and Maarseveen, V., The effects of an edge line on speed and lateral position: a meta-analysis. Accident Analysis Prevent., 2003, 36, 671–682.
- Dey, P. P., Chandra, S. and Gangopadhaya, S., Lateral distribution of mixed traffic on two-lane roads. J. Transp. Eng., ASCE, 2006, 132, 597–600.
- Yang, J., Estimation of vehicle’s lateral position via the Lucas-Kanade optical flow method. WSEAS Trans. Syst., 2015, 11(8), ISSN: 2224–2678.
- Mahapatra, G. and Maurya, A. K., Study on lateral placement and speed of vehicles under mixed traffic condition. Proc. Natl. Conf. Recent Adv. Traffic Eng. (RATE), 2015.
- Bunker, J. M. and Parajuli, A., Examining lateral positions of cars and heavy vehicles on a two lane, two-way motorway. Transp. Eng. Australia, 2006, 10(2), 129–139.
- Mohapatra, S. S., Dey, P. P. and Chandra, S., Modelling the critical position of u-turning vehicles at uncontrolled median openings. J. Civil Eng., KSCE, 2016, 20(1), 411–420.
- Electronically Tunable LC High Pass Ladder Filter Using OTRA
Abstract Views :153 |
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Authors
Affiliations
1 Department of Electronics and Communication Engineering, Delhi Technological University, IN
1 Department of Electronics and Communication Engineering, Delhi Technological University, IN
Source
ICTACT Journal on Microelectronics, Vol 3, No 3 (2017), Pagination: 446-451Abstract
This paper presents Operational trans-resistance (OTRA) based electronically tunable high pass L-C based ladder filter. The proposed high pass filter is designed by following a systematic approach using leap frog simulation for ladder filters. The cut-off frequency of the proposed filter can be varied with the application of appropriate voltages to the gate of MOSFETs hence making the design electronically tunable. Therefore, it can be used for RF applications at 455kHz and 1MHz (intermediate frequencies for RF applications). Performance of the proposed circuit is verified through SPICE simulations employing a 0.5μm MOSIS AGILENT CMOS realization of OTRA.Keywords
OTRA, High Pass Filter, Tunable.
References
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- Suman Kumari, Stuti Gupta, Neeta Pandey, Rajeshwari Pandey and Rashika Anurag, “LC-Ladder Filter Systematic Implementation by OTRA”, International Journal Engineering Science and Technology, Vol. 19, No. 4, pp. 1808-1814, 2016.
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- S. Sa-Ad and D. Chaythong, “A High Frequency Current Mode Ladder Filter using Multiple Output Lossless Integrator”, Proceedings of International Symposium in Intelligent Signal Processing and Communication systems, pp. 1-4, 2008.
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- A. Campeanu and J. Gal, “Systematic Implementation Method of LC-Ladder Filter by MO-CCCII Circuits”, Proceedings of 5th International Congress and Exhibition of Electrical and Electronic Engineering, pp. 1-5, 2007.
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- C. Laoudias and C. Psychalinos, “Comparative Study of Resistor Less Filters using Differential Voltage Current Controlled Current Feedback Operational Amplifiers and Differential Voltage Current Controlled Current Conveyors”, International Scholarly Research Notices, Vol. 2013, pp. 7-11, 2013.
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- W. Tangsrirat, K. Klahan, T. Dumawipata and W. Surakampontorn, “Low-Voltage NMOS-based Current Differencing Buffered Amplifier and its Application to Current-Mode Ladder Filter Design”, International Journal of Electronics, Vol. 93, No. 11, pp. 777-791, 2006.
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- Mechrella
Abstract Views :161 |
PDF Views:0
Authors
Affiliations
1 Department of Mechatronics Engineering, Chandigarh University, Gharuan, Mohali – 140413, Punjab, IN
1 Department of Mechatronics Engineering, Chandigarh University, Gharuan, Mohali – 140413, Punjab, IN
Source
Indian Journal of Science and Technology, Vol 11, No 26 (2018), Pagination: 1-3Abstract
Objective: This paper comprises the new way of construction and designing of mechanical roof for the controlled environment. Methods: Retractable roofs are those roofs which are used now days to cover the stadiums from the top so that there won’t be hindrance for the audience and players to see and play match in adverse weather conditions. Mechrella is kind of roof designed to be used for industries purpose where products and raw materials are dried or stored in open chambers. So this idea will be helpful in unfamiliar weather conditions. Finding: It was found that some industries that used to dry their raw material and products in direct sunlight suffered losses in unwanted rain shower so, Mechrella was sought an idea for such industries. It works automatically without any manual button. This idea is different, as before this retractable roof for stadiums were used and those were expensive to install in small levels industries. But this idea of Mechrella is cheaper and also easily portable. Application: It is cheap to install so it can be used in big as well as small scale industries to cover the roof in unwanted rain shower. Example: spices industries, dry flower industries etc.Full Text
References
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- An Analytical Study of Start-Up Trends:An Indian Perspective
Abstract Views :329 |
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Authors
Affiliations
1 Department of Computer Science and Engineering, Chandigarh College of Engineering and Technology (Degree Wing), Chandigarh, IN
1 Department of Computer Science and Engineering, Chandigarh College of Engineering and Technology (Degree Wing), Chandigarh, IN
Source
Journal of Entrepreneurship & Management, Vol 8, No 2 (2019), Pagination: 10-17Abstract
With the growing consumer market, India is one of the most favorable places to open a start-up. Various factors that influence the start-ups’ success, change over time. Their effects have to be analyzed properly in order to sustain this ever-evolving fast-changing world of trends. In this paper, we aim to study the most common patterns of funding in Indian start-ups industry and to analyze the current status of these start-ups. Means of interactive graphs have been employed to get an insight of the analysis done on the data set. Various start-ups have been categorized broadly into 8 industry verticals, then the graphs have been presented to show the number of start-ups opened in this category and also about how many of them were unsuccessful or being closed. This paper presents the analysis report to get an insight into present trends of investments in various industries and the success rate of start-ups opened in those industries.Keywords
Start-ups, Funding, Industry Verticals, Trend Analysis, Preprocessing.References
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- Assessment of Vehicles Headway during Queue Dissipation at Signal-Controlled Intersection under Mixed Traffic
Abstract Views :250 |
PDF Views:68
Authors
Affiliations
1 Department of Civil Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi - 221 005, IN
1 Department of Civil Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi - 221 005, IN
Source
Current Science, Vol 116, No 3 (2019), Pagination: 437-444Abstract
The present study focuses on the comprehensive analysis of vehicles headway at signalized intersections under mixed traffic stream. Data were collected at five signalized intersections from three different cities (Allahabad, Delhi and Chandigarh) of India. The discharge headway of vehicles was analysed after the onset of green signal when the initial queue dissipated through the intersection. A box-and-whisker plot was generated for discharge headway of vehicles to quantify its equitable profile. The plot delineated that headway of vehicles decreased with the initial queue dispersion. Although the differences between headway of vehicles were almost immutable after the fifth queue position, gives a saturation headway of 2.05 sec/vehicle. The headway distribution at each queue position was also evaluated using various continuous distribution models. The Kolmogorov-Smirnov (K-S) test was performed to define the adequate distribution model. The statistical results obtained from the K-S test indicated that the discharge headway distribution at each queue position followed a log-normal distribution. Multilinear regression technique was applied to analyse and develop a model for discharge headway using green signal time and vehicle type as independent variables. The result indicated that longer green time had a significant impact on discharge headway. The outcomes of this study may be beneficial in the microsimulation model development for signalized intersections to assess their performance.Keywords
Discharge Headway, Mixed Traffic, Regression Analysis, Signalized Intersection, Queue Dissipation.Full Text
References
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- Acoustic and Refractive Behaviour of the Binary Mixture of 1-butyl-3 Methylimidazolium Tetrafluoroborate with 1-Alkanol at 298.15 to 313.15k
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Affiliations
1 Department of Chemistry, V.S.S.D. College, Kanpur-208 002, IN
1 Department of Chemistry, V.S.S.D. College, Kanpur-208 002, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 42, No 3 (2020), Pagination: 72-77Abstract
Densities, refractive indices and speeds of sound and their excess properties for 1-butyl-3-methylimidazolium tetrafluoroborate [Bmim][BF4] with 1-pentanol over the entire range of mole fraction are reported at temperatures ranging from 298.15 K to 313.15 K and atmospheric pressure. Isentropic and excess isentropic compressibility for ionic liquids with 1-alcohols were calculated from the experimental results. The excess values are fitted to the Redlich-Kister polynomial equation to estimate the binary coefficients and standard error between the experimental and calculated values. The measured speeds of sound were compared to the values obtained from Schaaffs' collision factor theory, Jacobson's intermolecular free length theory of solutions and Nomoto's relation. In addition, the experimentally obtained refractive indices were compared to the calculated values using Lorentz- Lorenz, Dale-Gladstone and Eykman mixing rules. The theoretical results obtained from these relations fairly agrees within the experimental precision. Further, the molecular interactions involved in IL binary mixture system were studied.Keywords
Density, Refractive Index, Speed Of Sound, Ionic Liquids, Binary Mixture.Full Text
References
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- Assessment of Saturation Flow at Signalized Intersections: A Synthesis of Global Perspective and Future Directions
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Authors
Affiliations
1 Department of Civil Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, IN
1 Department of Civil Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi 221 005, IN
Source
Current Science, Vol 119, No 1 (2020), Pagination: 32-43Abstract
Saturation flow assessment at signalized intersections is one of the key features for analysing various performance measures such as capacity, level of service, signal strategies and coordination, and prediction of traffic flow models. Thus, an accurate estimation of saturation flow value is more beneficial at signalized intersections. Several studies have focused on the estimation of saturation flow in different roadway, traffic and control conditions. Earlier, saturation flow estimation methods were developed purely based on homogeneous traffic, where vehicle interaction was relatively less. However, in mixed traffic, an uneven distribution can be observed due to different vehicle dynamics and manoeuvrability with weak lane discipline. Thus, many studies have been carried out to frame an appropriate saturation flow estimation method. This study presents a comprehensive review on various saturation flow estimation methods developed in different traffic conditions; the drawbacks of the each method are also summarized. Moreover, a list of influencing factors affecting saturation flow value is provided. The general challenges in saturation flow estimation followed by some future direction for improvement in prediction models are also highlighted.Keywords
Estimation Method, Homogeneous And Mixed Traffic, Influencing Factors, Saturation Flow, Signalized Intersection.Full Text
- Investigations on IC Engine Piston Ring made of Composite Materials
Abstract Views :84 |
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Authors
Affiliations
1 Department of Mechanical Engineering, SGSITS, Indore, M.P., IN
2 Department of Mechanical Engineering, SGSITS, Indore, M.P.,, IN
1 Department of Mechanical Engineering, SGSITS, Indore, M.P., IN
2 Department of Mechanical Engineering, SGSITS, Indore, M.P.,, IN
Source
Journal of Mines, Metals and Fuels, Vol 70, No 8A (2022), Pagination: 1-7Abstract
This paper is respecting the evaluation of stress distribution on IC engine (four-stroke) piston ring and analysis of finite element by using FEA software. The purpose of this analysis is to calculate strain for SiC reinforced ZrB2, A360, A2618 and deformation resulting through ring elastic pressure and gas pressure. The total deformation and strain on the piston ring have been obtained in this project. The characteristics of such vibrations are analyzed with the help of solid works software and analysis of finite element is performed on the Ansys workbench software. The material used is Silicon Carbide reinforced Zirconium Diboride (SiC reinforced ZrB2), Aluminium alloy (A360), Aluminium alloy (A2618). This is a ceramic matrix composite (CMC) which has good safety factor and lower cost. The experiment is conducted on three types of composites to evaluate the strain on SiC reinforced ZrB2, A360, A2618 resulting from the total deformation and strain. Compressive strength has also been analyzed for the structural model of the piston ring.Keywords
Piston ring, Finite element analysis, SiC reinforced ZrB2, A360, A2618References
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