In this paper, nozzle and throttle plate was modeled and analyzed in order to have better understanding of the flow in complex venturi. The carburettor body has been remodeled with two throttle bodies replacing conventional throttle. Analysis have been performed to study flow field with modified design. Further a comprehensive comparative study was made with the existing and modified design. A commercial computational fluid dynamics package were used to develop a three dimensional, fully turbulent model of the compressible flow across a complex geometry venturi, such as those found in low speed engine carburettors. The results of CFD simulation were utilized to understand the effect of different obstacles in flow on the mass flow rate and static pressure at the tip of fuel Jet. The results indicated that the efficiency of the engine has been increased by the modifiedcarburettor.

In this paper we introduce con-k-normal polynomial and con- k-unitary polynomial matrices and study some of its properties

The semi-automatic world is fading and more autonomous systems are being developed to increase the convenience of mankind. The concept of IOT (internet of things) has gained plenty of attention in the technical world. This project is one such application of IOT which we named the HIVE. It enables you to monitor a particular area and control the appliances within that area from anywhere in the world. A web based GUI (graphical user interface) is used to login and gain access to the control page that gives the user an exact virtual visualization of the area. Environmental conditions like temperature and humidity is be monitored using a network of smart sensors (slave) that send data to the master. The project offers ease of access, process optimization, optimized resource consumption, sensor driven decision analytics, instantaneous control and response in complex autonomous situations etc. adding convenience to the way of life

With the development of the internet, processing and storage technologies, computing resources have become cheaper, more powerful and available 24X7 everywhere. Cloud computing has now established itself as a preferred paradigm for hosting and delivering services over the internet. It allows consumers to start from the small and increase resources when there is a rise in service demand, eliminating the requirement to plan ahead for provisioning. One of the key challenges of cloud computing is the need for an automated and an integrated rational approach for dynamic provisioning of resources. This will allow the cloud to offer services that are reliable, cost-efficient and secure. In this context, autonomic computing promises to be a new concept for increasing reliability, autonomy and performance by enabling systems to adapt to changing circumstances. The aim of this paper is to provide a better understanding of the type of system architecture required to support above told objectives in cloud computing

A sign language (SL) is a visual language which uses manual communication and body language to convey meaning instead of acoustically conveyed sound patterns. SL is the communication mode among Deaf people. Different Sign languages according to different communities. One of the most widely used sign language is the American Sign Language (ASL). Translation between any pair of languages need many requirements, such as parallel dictionary, grammar rules, displaying tool. The proposed system takes input English text and produces ASL by passing into stages of processing. In order to build automatic translation system, a large dictionary has been built that contains ASL word with its corresponding movie. In order to evaluate the proposed grammar, English _ ASl corpus has been built.Good results have been obtained by evaluating the main stage of the system according to accuracy and time. Using Python programming language has the main contribution in producing good results. It provides the using of NLTK in addition to provide reducing time consuming.

The successful operation of Wireless Sensor Network fully depends on the limited battery power of their nodes. Since large number of nodes are deployed in a small area thus leading to spatial correlation among data causing data redundancy. The transmission of redundant data causes unnecessary consumption of limited energy thus reducing the lifetime of the network. In order to enhance the lifetime of the network, a clustering algorithm named as ‘Correlated LEACH’ has been proposed in this paper by exploiting the correlation between cluster head and other nodes. This paper also includes the modification over Correlated LEACH named here MC-LEACH. It achieves longer lifetime by introducing a modification in cluster head selection criteria based on heterogeneity of nodes. Here, the preference to advanced nodes over normal nodes in cluster head selection process prolonging the lifetime of the network. The simulation model has been developed using Matlab software and first node die out metric has been used for lifetime calculations.

An automated irrigation system was developed to optimize water use for agricultural crops. The system has a distributed wireless network of soil-moisture and temperature sensors placed in the root zone of the plants. A gateway unit handles sensor information, triggers actuators, and transmits data to a web application. An algorithm was developed with threshold values of temperature and soil moisture that was programmed into a microcontroller-based gateway to control water quantity. The system was powered by photovoltaic panels and had a duplex communication link based on a cellular-Internet interface that allowed for data inspection and irrigation scheduling to be programmed through a web page. The automated system will have water savings of up to 90% compared with traditional irrigation practices. Because of its energy autonomy and low cost, the system has the potential to be useful in water limited geographically isolated areas.

The article shows the results of the earth structures bearing capacity evaluation objectification for airfields by means of CBR (California Bearing Ratio). This test is one of the most used laboratory tests of the quality of the earth structures. In labo CBR values were determined according to STN 72 1016 Laboratory determination of the California Bearing Ratio of soils. Within the frame of author´sresearch activities were made an objectification of the correlation between CBR values and moisture of the fill material in a cut of the earth structure of the RWY. The CBR tests were performed on the clay gravel specimens, which were prepared in the test cylinders used for a modified Proctor test. The found correlation allows to determine the moisture level to meet requirements of the RWY recommended byAerodrome Design Manual

Personalized web search retrieval is the most concerned application in the search engine based content retrieval scenarios where the users are required to get their most wanted results as per their requirements.Tracking user’s preferences and retrieving contents based on their preference needs is the complex scenario.The main objective of this work is to retrieve the contents from the web servers based on the individual user preferences by constructing their personalized profile in the anonymized manner. The profile is represented by using the ontological concept where the different meaning of sentences can be extracted. Ontology based user profile construction is integrated with the existing concepts called the privacy profile construction in the existing work. This proposed research methodology attempts to construct the triplets of the user query, so that the exact meaning of their requirement can be identified easily. With the help of triplets, the original meanings of the sentences are identified and based on which profile is reconstructed and represented in the ontological format. This method will gather the user privacy requirements from them which would be anonymized in the future. The experimental tests conducted in java simulation environment which is integrated with the online server for retrieving the user preferred web sites. The experimental tests were conducted to prove the improvement over the proposed methodology in terms of performance measures called the precision and recall to identify which methodology can retrieve the contents in the more efficient manner. The comparison were plotted in the graphical representation and the finally concluded that the proposed methodology provides better result than the existing research works. Findings of these work demonstrates that the proposed methodology provides better result than the previous research works in terms improved accurate retrieval of contents.

Antenna is an electronic device which is the source of electromagnetic (energy) wave[1].Antenna is a radiantly element which radiates electromagnetic energy in free space in all directions.Dipole is radiantly element which radiates directionally. The dipole is characterized by its length[11]. When the length of the dipole antenna is increased the radiation pattern becomes change and introduced side lobes.In the pattern work Design of dipole and its array antenna systems are presented. In modern communication systems such as Satellite links, GPS, wireless local networks often require antennas with low cost high gain with narrow beams. The dipole array antennas are an useful in such cases. In this work design of dipole arrays are presented and compare with ideal array system slots are obtained withgood agreement.

Speaker recognition is the process of automatically recognizing the speaker, based on individual information included in speech signals. The speaker is identified by investigating the extracted features of the unknown speech and then comparing it with the stored extracted features in the database. This paper describes the implementation of text dependent Speaker Recognition System on TMS320C6713 DSK using Code Composer Studio v3.1 as the Integrated Development Environment (IDE). Feature extraction is done using Mel Frequency Cepstral Coefficients and the compressed speech signal is stored in a speaker database. A distortion measure based on minimization of Euclidean distance is used to match an unknown speaker’s voice with the database. Digital Signal Processors being the fastest method for implementing signal processing solutions offers an excellent platform for developing the specified system. Finally, we provide the software and hardware optimization techniques for reducing the number of clock cycles aiding the development of a faster system.

Composite materials consist of two or more constituent materials, the fiber and the matrix. Generally the matrix is of ductile and fiber is of brittle in nature. Fiber reinforced polymer composites are becoming very popular and replacing conventional materials nowadays, because of their excellent properties suitable for various applications. The properties of fiber reinforced polymers are comparable to most conventional materials like metallic materials. This is due to their lower density compared to the higher density in metals which leads to higher strength to weight ratio for the composites compared to that of the metallic materials. These composites are also easier to obtain in desirable shape and require much less energy in making the required product. There are number of fibers available for making composite material including synthetic as well as natural fibers. Natural fibers are available in plenty and it is also eco friendly, which go waste if not utilised further. In this experimental work, different fibers sisal fiber, kenaf fiber, banana fiber, carbon fiber and rice husk hybrids are separately used to prepare a specimen using a thermosetting polymer unsaturated polyester and suitable hardener, accelerator and catalyst for the improvement of the process, various mechanical testing such as Tensile test , Flexural test, Impact test of the composite material under various conditions are carried out. The properties of the were compared. ASTM standards were followed for carrying out all these tests.

A Computational Fluid Dynamics (CFD) modelfor thermal energy storage tank by keeping PhaseChange Material (PCM) in the capsules has been developed and validated with experimental results.The heat transfer fluid flow (HTF)in thermal energy storage tank was developed using PCM capsules in a single arrangement during the charging and discharging processes. A Two-Dimensional CFD model using Ansys code was developed and validated with experimental results. The inlet and outlet HTF temperatures in the PCM were compared with the CFD results. This paper gives details of the CFD model and compares results from the model and experiments.