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Search Results: 1 - 10 of 4679 matches for " Manoj Jain "
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Runoff and Sediment Modeling Using SWAT in Gumera Catchment, Ethiopia  [PDF]
Kaleab Habte Michael Mamo, Manoj K. Jain
Open Journal of Modern Hydrology (OJMH) , 2013, DOI: 10.4236/ojmh.2013.34024
Abstract: This study was undertaken to examine the applicability of the SWAT model in Gumera river basin upstream of Lake Tana, Ethiopia for simulating stream runoff and sediment load. The area of river basin was discretized into 24 sub-catchments using ArcSWAT interface of the model. The semi automated Sequential Uncertainty Fitting (SUFI2) and fully automated Parameter Solution (ParaSol) calibration process built in SWAT calibration and uncertainty program (SWAT-CUP) were used to calibrate the model parameters using time series of flow and sediment load data of 1994 to 2002 and validated with the observed data from years 2003 to 2006. The performance of the model was evaluated using statistical and graphical methods to assess the capability of the model in simulating the runoff and sediment yield for the study area. The coefficient of determination (R2) and NSE values for the daily runoff by using [ParaSol] optimization technique was obtained as 0.72 and 0.71 respectively for the calibration period and 0.79 and 0.78 respectively for the validation period, R2 and NSE values of monthly flow calibration using SUFI2 are 0.83 and 0.78 respectively for validation it was 0.93 and 0.93. For monthly sediment yield by using SUFI2 calibration technique the model evaluation coefficients R2 and NS for calibration was computed as 0.61 and 0.60 respectively, for validation it was 0.84 and 0.83 respectively. The sensitivity analysis on 13 runoff producing parameters was also carried out and discussed.
New Log-Domain First-Order Multifunction Filter Using MOSFETs in Weak Inversion  [PDF]
Manoj Kumar Jain, Vinod Kumar Singh
Circuits and Systems (CS) , 2016, DOI: 10.4236/cs.2016.711299
Abstract: A new current-mode first-order log-domain multifunction filter is presented in this paper. This filter has single input and provides three outputs (low-pass, high-pass and all-pass) using a first-order low-pass filter and five of current mirrors as building blocks. The proposed filter employs only MOSFETs and a grounded capacitor. The first-order filters are used in audio and video applications extensively. The MOSFETs of the core section are operated in weak inversion thereby making the circuit suitable for low-voltage, low-power applications. The SPICE simulations have shown good performance of the proposed filter.
DEVELOPING A RETARGETABLE COMPILER FOR MIPS32K AND ARM7TDMI-S
Dr. Manoj Kumar Jain
Journal of Global Research in Computer Science , 2012,
Abstract: The market of embedded systems is spreading faster than that of information technology. Mostly, the segments of embedded systems are consumer markets, with very short product lifetimes and short market windows. Hence, time-to-market is an important factor. Cutting down the time to market for products that became more and more complex is possible through “re-use”. Another important characteristics of the embedded system market is the ease of incorporating late design changes, i.e. flexibility of the target technology, This led to the use of processors in embedded systems. This in turn led to the use of embedded software. Traditional compiler technologies were not adequate for applications and architectures of embedded systems; this led to the development of “retargetable compilers”. A compiler is said to be retargetable, if it can be applied to a range of different target processors, by re-using most of the code. This means that target model cannot be an implicit part, but must be specified explicitly. In this paper, we have described the development of a retargetable compiler. The developed methodology has been used to generate and validate codes for MIPS and ARM processors. The objective of this research is to develop a retargetable compiler that can generate efficient code in terms of code size, cycle count and retargetability efforts for a wide rnge of processors.
VERYIFYING AND SUBSTANTIATING FUNCTIONS IN MIPS
Dr. Manoj Kumar Jain
Journal of Global Research in Computer Science , 2013,
Abstract: Complexity of embedded system design is increasing day by day. An embedded system is a combination of hardware and software. Embedded systems are broadly defined as systems designed for a particular application while meeting strict design constraint. In addition, market competition and the increasing demand for electronic equipment are pushing designers to shorten the design cycles of new products. There is a well known tradeoff between retargetability and code quality in terms of performance and code size when compared to the hand optimized code. This is because when the design space is large, all possible target specific optimizations cannot be performed in that case. In this paper we have demonstrated the importance of retargetable compiler. The major contribution of this paper lies in design and development of retargetable compiler for MIPS, especially implementing functions.
An Efficient Expert System Generator for Qualitative Feed-Back Loop Analysis
Manoj Kumar Jain
Brain. Broad Research in Artificial Intelligence and Neuroscience , 2012,
Abstract: Quite often the variables used in system analysis are qualitative in nature. They cannot be defined precisely, whereas software development for system analysis needs a mathematical framework with precise computations. It is not trivial to capture the uncertainty in the system. Fuzzy sets provide us the facility to capture the uncertainty in the system. In normal crisp set where the membership of an element is always certain in a sense that it would be member or not of the given set. In contrast to this a membership functions or possibility (ranging from 0 to 1, including both values) is assigned with each member. System analysis is done through system dynamics which is not very efficient. We present an efficient technique to generate expert system using fuzzy set. In our proposed approach five linguistic qualifiers are used for each variable, namely, Very Low (VL), Low (L), Medium (M), High (H), and Very High (VH). We capture the influence or feedback in the system with the help of if then else rules and matrices are generated for them which are used for analysis. Complete methodology and its applicability are presented here.
High Performance Simulator Analyzing the Efficient Cache Memory Simulation Behavior
Dr Manoj Kumar Jain,RaviKhatwal
International Journal of Soft Computing & Engineering , 2013,
Abstract: High performance is the major concern in the area of VLSI Design. Cache memory consumes the half of total power in various systems. Thus, the architecture behavior of the cache governs both high performance and low power consumption. Simulator simulates cache memory design in various formats with help of various simulators like simple scalar, Xilinx etc. This paper explores the issue and consideration involved in designing efficient cache memory and we have discussed the cache memory simulation behavior on various simulators. Memory design concept is becoming dominant; memory level parallism is one of the critical issues concerning its performance. We have to propose high performance cache simulation behavior for performance improvement for future mobile processors design and customize mobile devices.
Application Specific Hardware Design Simulation for High Performance Embedded System
Ravi Khatwal,Manoj Kumar Jain
Computer Science , 2014, DOI: 10.5120/16834-6599
Abstract: Application specific simulation is challenging task in various real time high performance embedded devices. In this study specific application is implemented with the help of Xilinx. Xilinx provides SDK and XPS tools, XPS tools used for develop complete hardware platform and SDK provides software platform for application creation and verification. Xilinx XUP-5 board have been used and implemented various specific Applications with hardware platform. In this study the base instruction set with customized instructions, supported with specific hardware resources are analyzed.
Application Specific Cache Simulation Analysis for Application Specific Instruction set Processor
Ravi Khatwal,Manoj Kumar Jain
Computer Science , 2014, DOI: 10.5120/15782-4526
Abstract: An Efficient Simulation of application specific instruction-set processors (ASIP) is a challenging onus in the area of VLSI design. This paper reconnoiters the possibility of use of ASIP simulators for ASIP Simulation. This proposed study allow as the simulation of the cache memory design with various ASIP simulators like Simple scalar and VEX. In this paper we have implemented the memory configuration according to desire application. These simulators performs the cache related results such as cache name, sets, cache associativity, cache block size, cache replacement policy according to specific application.
An Efficient Synchronous Static Memory design for Embedded System
Ravi Khatwal,Manoj Kumar Jain
Computer Science , 2014, DOI: 10.5120/11187-6411
Abstract: Custom memory organization are challenging task in the area of VLSI design. This study aims to design high speed and low power consumption memory for embedded system. Synchronous SRAM has been proposed and analyzed using various simulators. Xilinx simulator simulates the Synchronous SRAM memories which can perform efficient read/write capability for embedded systems. Xinix tool also provide the access time that required selecting a word and reading it. Synchronous Static RAM which has easily read /writes capability and performs scheduled read /writes operation in efficient manner.
Specular microscopy of unilateral hard contact lens wearers
Dada Vijay,Jain Arun,Mehta Manoj
Indian Journal of Ophthalmology , 1989,
Abstract: The effects of long term wear of PMMA contact lenses on the corneal endothelium used on a daily wear basis were determined by examining 8 patients who had been prescribed lenses in one eye only. The patients excluded unilateral aphakes. It was found that a significant reduction in the cell density and a change in the cell size and shape was induced by PMMA lenses. These changes reflect an endothelial metabolic stress and emphasize the need to find newer lens materials that are more oxygen permeable and produce little interference with the corneal metabolism.
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