Volume 9 | Issue 1 | January-2021

 Abstract

Due to increase population, advanced agricultural practices, industrialization, man- made activity, water is being highly polluted with different contaminants. In present situation, the waterway water has become wastewater because of removal of city squander through which it streams. Water is a vital resource for human survival. His accessibility of good quality water is an essential component for forestalling infections and improving personal satisfaction. It is necessary to know details about different physico-chemical parameters such as color, temperature, total dissolved solids, Total hardness, and pH, dissolve oxygen, chemical oxygen demand, used for testing of water quality.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Agricultural Runoff, BOD and COD, Domestic Waste, Heavy Metals, Industrial Effluent

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

This departs management answer is meant to interface with a team of workers database, course registration gadget and a body of the workers appraisal gadget. Especially, it is a set of rules that assesses leave requests and schedules the go away asked for durations having less impact on body of workers blend by way of rank and lecturer-to-college student ratio. In pursuance of those, human resource planners might also over-dedicate staff to it, leaving the system understaffed at key moments, or below-decide to it and lose out on the blessings. Both ways, carrier shipping is adversely affected. The algorithm changed in evolved following iterative, incremental process version, in three increments, every executing their corresponding set of requirements. The set of rules changed into carried out the usage of Matlab. The work functions generation of sample data of the instructional body of workers in a specific engineering diploma application. The set of rules, schedules departs for intervals of least impact on carrier transport of university instructional personnel by choosing the 12 months with the least shortfall in to be had group of workers blend thinking about the encouraged group of workers blend. This work presents a leave management solution where the leave request by the university or college staff are processed with service delivery. This leave management solution intended to interface with a staff attendance, assign batch to the teacher, transfer batches, generate salary, etc.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Staff mix by rank, Leave management, Staff attendance, Generate salary Human Resource Planning.

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Creative Commons Attribution 4.0 and The Open Definition

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In cloud computing, where encryption-before outsourcing is a fundamental solution to protecting user data privacy in the distrustful cloud server environment, search over encrypted data is an extremely important enabling technique. Most of the secure search schemes have been concentrating on the single-contributor scenario, where the outsourced dataset or the secure searchable index of the dataset are encrypted and supervised by the individual owner, typically based on symmetric cryptography. In this paper, we target and concentrate on a diverse yet more challenging and defying scenario where the outsourced dataset can be contributed from multiple owners and are searchable by multiple users, that is multi- user multi-contributor case. We submit the attribute-based keyword search scheme with ef?cient user revocation (ABKS- UR) that enables scalable ?ne-grained (i.e. ?le-level) search authorization which is encouraged by attribute-based encryption (ABE). Our project related scheme will allow numerous owners to encrypt and outsource their data to the cloud server individually. Users can create their own search facilities without relying and depending on an online trusted authority. Fine- grained search authorization is also achieved by the owner-enforced access policy on the indication of each ?le. Additionally, by combining proxy re-encryption and lazy re-encryption techniques, we are capable to assign large size system update workload during user annulment to the resourceful semi-trusted cloud server. We define the security de?nition and prove the proposed ABKS-UR scheme selectively secure than chosen-keyword attack. To create con?dence of data user in the suggested secure search system, we also build and design a search result authentication and veri?cation scheme. Lastly, performance assessment shows the ef?ciency and effectiveness.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

User Revocation, Cloud Computing, Attribute based Keyword Search, Fine-grained Owner-enforced Search Authorization, Multi-user Search, Verifiable

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Creative Commons Attribution 4.0 and The Open Definition

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An impact attenuator is a structure used to decelerate impacting vehicles gradually to a stop by gradually decelerating the racecar, the frame and driver are protected from significant deformation and injury. One of the types of energy absorber, having relatively limited focus in various available literatures was the proper dimensioned honeycomb impact attenuator structure as per FSAE regulations. Such a structure is essential to absorb maximum amount of energy with the required acceptable deceleration level. FSAE specifies that each car in operation must have an attenuator that meets specifications and testing criteria Impact Attenuator when mounted on the Front Bulkhead, would give an average vehicle deceleration of less than 20g while hitting a non-yielding surface. The data requires the vehicle is traveling at 7 m/s during the impact with a total mass of 300 kg. The peak deceleration during the impact must be under 40g. Aim of this paper is to compare computer simulated result of different material honeycomb structure & Baseline model that simulation is carried out by using LS-DYNA & HYPERMESH Software.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Attenuator, Crash Cushion, Structures, Honeycomb, FSAE.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Using bio-ethanol blended gasoline fuel for automobiles can significantly reduce petroleum use and exhaust greenhouse gas emission. Bio-ethanol can be produced from different kinds of raw materials. These raw materials are classified into three categories of agricultural raw materials: simple sugars, starch and lignocellulose. Bio-ethanol from sugar cane, produced under the proper conditions, is essentially a clean fuel and has several clear advantages over petroleum-derived gasoline in reducing greenhouse gas emissions and improving air quality in metropolitan areas. Conversion technologies for producing bio-ethanol from cellulosic biomass resources such as forest materials, agricultural residues and urban wastes are under development and have not yet been demonstrated commercially.The implementation of the Brazilian sugarcane ethanol program always included a continuous assessment of its sustainability. The possibilities for increasing production in the next years must consider the exciting promises of new technologies (that may lead to 50% more commercial energy/ha, from sugarcane) as well as environmental restrictions. The greenhouse gases emissions associated with the expansion are analyzed in the next sections.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Biomass, Bio-ethanol, Fuel properties, GHG emissions

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Retrofitting refers to the addition of new members or components to older systems. In terms of civil engineering it refers to the strengthening of old structures. Many of the existing reinforced concrete structures do not meet the current design standards because of inadequate design and construction or need structural upgrading. They are in urgent need of repair, retrofitting or reconstruction because of fail or collapse due to various factors like corrosion, lack of detailing, failure of bonding between beam-column joints, increase in service loads, etc., leading to spalling, cracking, loss of strength, deflection, etc. Innovative techniques for repair have many advantages over conventional techniques. This paper presents the behavior and strength of reinforced concrete beams and columns strengthened with Ferro cement jackets. A total 15 beams were prepared from that three specimens of beams and columns are control beams. Remaining twelve beams are distressed at 60% and 80% of the ultimate load and retrofitted with Ferro cement in no of layers single and double layer respectively. The load deflection characteristics and mode of failure are studied. The test result indicates that load carrying capacity is increases after retrofitting.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Ferro cement wire mesh, Retrofitting, RCC beams.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Heat is the energy, so energy saving is one of the key matters for the protection of global environment. Heat also radiated from our domestic refrigerator. This waste heat from refrigerator will affect the environmental because as heat in the environment will increases it will cause global warming. So it is necessary that a significant effort should be made for conserving energy through waste heat recovery too. So an attempt has been made to utilize waste heat from condenser of refrigerator. This heat can be used for several domestic and industrial purposes. In minimum constructional, maintenance and running cost, this system is very useful for domestic purpose. It is valuable alternative approach to increase overall efficiency and reuse the waste heat. The study has shown that such a system is technically feasible and economical. This system is a cabin that we are going to install over the head of the simple refrigerator, this cabin will be an arrangement of coils that will work as a heat exchanger for reuse of waste heat. These coils are hot coils of condenser of the refrigerator that will be modified and will put in the cabin. It can serve the purpose of cooking, geysers etc. Besides, the refrigerator may be used as conventional refrigerator. Further COP will also increase. Heat rejection may occur directly to the air in the case of a conventional household domestic refrigerator having air- cooled condenser. This system rejected less heat to the environment so it is safer in environmental aspects also.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Waste heat recovery, Domestic refrigerator, COP, Heat Balancing, Air Cooled Condenser, Insulating Storage Tank.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

Licence: creative commons attribution 4.0

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

aerofoil, angle of attack,reynolds number.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

This Paper represents a review of a case study on experimental investigation has been carried out in order to evaluate the detection of cavitation in actual hydraulic turbines. The methodology is based on the analysis of structural vibrations, acoustic emissions and hydrodynamic pressures measured in the machine. The proposed techniques has been checked in real prototype suffering from different types of cavitation. In particular, Kaplan. First, a brief description of the general features of cavitation phenomenon is given as well as of the main types of cavitation occurring in hydraulic turbines. The work presented here is focused on the most important ones which are the leading edge cavitation due to its erosive power, the bubble cavitation because it affects the machine performance and the draft tube swirl that limits the operation stability.

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Cavitation, hydraulic turbines, Kaplan Turbine, structural vibrations.

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Creative Commons Attribution 4.0 and The Open Definition

 Abstract

In today's booming equity markets a well-constructed portfolio is very important to wealth creation. The equity markets in India are generating great returns. The returns generated by equity seem to dwarf the returns generated by all other classes of assets. To achieve high returns while maintaining the risk to minimum value is the goal of any equity investor when investing their capital in the market. A portfolio refers to the grouping of stocks in which the capital among stocks is invested in such a way that the profit is maximum and the risk is minimum. Equity Portfolio generation and optimization is designed to be a highly extensible project applying machine learning to create a portfolio and optimize it that will give higher returns than the major index and is also less risky and diversified.

Licence: creative commons attribution 4.0

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Creative Commons Attribution 4.0 and The Open Definition

 Keywords

Equity Portfolio generation and optimization using Machine learning

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Creative Commons Attribution 4.0 and The Open Definition