Volume 6 | Issue 2 |

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IMPLIMENTATION OF DUAL ACTIVE FULL BRIDGE DC-DC CONVERTER USING PHASE SHIFT CONTROL TECHNIQUE

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IMPLIMENTATION OF DUAL ACTIVE FULL BRIDGE DC-DC CONVERTER USING PHASE SHIFT CONTROL TECHNIQUE

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: In this analysis a single basin type solar along with concentrator type solar still was fabricated and tested for desalination of water with various water depths, sensible heat, latent heat and porous materials operated almost on same heat inputs. A concentrator with heat exchanger is designed in a conventional type solar still to act as temperature booster.. The collector tray was of dimension 0.9 m2 and 4 mm thick G.I. Sheet was painted black and was attached with heat exchanger pipe. The inclination of the glass is 30?. Different water depths of 2cm, 3cm and 4cm were maintained in the still to enhance productivity of the still, sensible heat storage materials. Latent heat, porous materials were used in the still maximum evaporation rate was found for 2cm water depth 2220 ml/m2 Maximum payback period was achieved for concentrator with sensible materials. Key words: concentrator, solar still, Sensible, latent, porous heat storage medium, Depth Variation, heat exchanger

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concentrator, solar still, Sensible, latent, porous heat storage medium, Depth Variation, heat exchanger

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???????? ??? ??? ???? ????? ?? ?????? ????? ??? ???????? ?? ???????? ?? ????? ?? ????? ???????? ?? ?????? ?? ?????? ???? ???? ???????? ?? ??? ??? ???????? ????????????? ???????? ?????????????, ???????? ??? ???????? ???? ????? ?? ?????? 84 ????????????? (42 ????? ??? 42 ????????) ?? ??? ????????? ???? ?????? ???? ???? ????????? 21 ????? ??? 21 ???????? ?? ??????????? ???? ??? 21 ????? ??? 21 ???????? ?? ?????????? ???? ??? ?? ?? ??0 ??0??0 ???, ?????? ??????? ???????? ?????????? ?? ??????, ????? ??????? ???? ???? ??????????? ???? ?? ??? ??? ?? ????? ?????? ????? ??? ??? ?????????? ???? ?? ????? ??????? ??? ?????? ???? ???? ???? ??? ??? ??????, ???? ??????? ???? ???? ??????? ???????? ???? ??-?????? ?????????? ??????? ?? ?????? ???? ???? ???????? ?? ?????? ?? ???????? ???? ??? ?? ?????????? ???? ?? ??????? ?? ??????? ??????????? ???? ?? ??????? ?? ???????? ?? ????? ??? ??? ???? ?????????? ???? ?? ???????? ?? ??????? ??????????? ???? ?? ???????? ?? ???????? ?? ????? ??? ??? ???? ?????????? ???? ?? ????????????? ?? ??????? ??????????? ???? ?? ????????????? ?? ???????? ?? ????? ??? ??? ???, ?????? ????? ???????? ???????? ?? ????? ?? ?????? ??? ?? ?? ???? ????

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???????? ?? ?????, ????? ??????, ???? ????? ?? ??????

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There has been prolonged debate with some of my friends in understanding the applicability of Gandhism in the modern corporate world that talks of stocks, prices, stoplosses and margins every day. To worsen the state of their minds, a question of what is there in today's modern management principles and leadership skills, has also been started lingering around. One would have to go through the whole history to study Gandhian methods and leadership principles and come out with an answer to convince my friends who really want to know the "truth". But, it could not be possible as there are very few management and leadership related books and resources during the beginning of the last century. Also, most of the practices and leadership skills are formulated only in the later part of the century. A thorough and definite understanding of Management and Leadership is required to further explore in this direction. In the above context, the current research paper tries to find out the relevancy of Gandhian principles in today's corporate world, to what extent they can be applied in Indian as well as global business houses and most importantly how can managers benefit from these principles in improving their way of working.

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Team Building, Networking, Brand Building, Unique Selling Proposition, Ahimsa

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malabar nausik abhyash : hindi - prshant chetra me shakti pradrshan

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malabar nausik abhyash : hindi - prshant chetra me shakti pradrshan

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In modern era, Intellectual Property (IP) is recognized as a property all over the world and there is a huge scope and protection for the person's, who invented or produced any lawfully allowed intellectual outcome from his/her effort, capital and time. The person's are allowed to enjoy monopoly right over their invention or for any work for certain years. Intellectual Property is allowed inventor or author or owner of the work exploit commercially or allow others to exploit commercially. In the era of evolution of Internet, E-Commerce and Information Technology there is a scope for domain name under trademarks. Holding and registering a domain name for a company is as much important as holding and registering the name and logo of the company. So it is very necessity to know about domain name, its protection and legal issues in this article.

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Intellectual Property, Domain Name, Trademark, Internet, E-Commerce

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"??. ?????? ??????? ?? ??????? ????? ?? ?????: ??????? ???????????? ??? "

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"??. ?????? ??????? ?? ??????? ????? ?? ?????: ??????? ???????????? ??? "

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The present study is devoted to elaborately study the use of panel regression models in modelling the water quality parameters of river Subarnarekha. The study takes into consideration three modelling techniques of fixed effect panel regression models viz. within-group estimation, first difference estimation and least square dummy variable estimation techniques. The statistical significance of all the models have been compared using the best goodness of fit measures viz. Root mean square error and R-square by considering the panel data of water quality parameters extracted from the Water Year Book issued by Central Pollution Control Board.

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COMPREHENSIVE STUDY OF QUANTIFICATION OF WATER QUALITY PARAMETERS AND THEIR SIGNIFICANCES

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This paper presents five different proofs of the projection theorem, also known as the orthogonal projection theorem or the perpendicular projection theorem. The projection theorem states that for a vector space V equipped with an inner product, given a closed subspace W of V, every vector v in V can be uniquely decomposed as the sum of a vector w in W and a vector w? orthogonal to W. The proofs presented in this paper offer various perspectives and approaches to understanding and demonstrating the projection theorem.The first proof utilizes a geometric approach, visually illustrating the projection of a vector onto a subspace and demonstrating the uniqueness of the projection using the Pythagorean theorem. The second proof employs matrix representation, expressing vectors as matrices and showing how the projection can be computed using matrix multiplication. The third proof utilizes direct computation, expressing vectors as linear combinations of orthonormal basis vectors and proving the uniqueness of the projection by analyzing the coefficients.The fourth proof adopts a least squares approach, highlighting the projection as the vector that minimizes the distance between a given vector and the subspace. By formulating the problem as a system of normal equations, the uniqueness of the projection is derived. The fifth proof explores the concept of orthogonal decomposition, demonstrating that the set of vectors obtained by subtracting elements from the subspace forms a closed subspace. The orthogonal nature of these vectors further establishes the uniqueness of the projection.Through these diverse approaches, this paper offers a comprehensive understanding of the projection theorem, shedding light on its geometric, algebraic, and matrix-based interpretations. By presenting multiple proofs, readers gain a deeper insight into the fundamental principles underlying the projection theorem and its application in various mathematical contexts.

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Projection theorem; Orthogonal projection; Linear algebra; Functional analysis; Vector decomposition.

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An unmanned aerial vehicle (UAV), commonly known as a drone, is an aircraft without any human pilot, crew, or passengers on board. UAV can fly for long periods of time at a controlled level of speed and height. The basic components of a drone are the frame, motors, propellers, battery, flight controller, and sensors engine, power system, electronic control, and communication system. There are numerous civilian, commercial, military, and aerospace applications for UAV. In recent years, autonomous drones have begun to transform various application areas as they can fly beyond visual line of sight while maximizing production, reducing costs and risks, ensuring site safety, security and regulatory compliance. In present investigation, different types of drones and their technical designing has been discussed.

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UAV, drone, motor, propeller

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