Génération of industriel waste water, is one of the burning issue with all of the chemical industries because it is required to discharge directly to the river because of which it is required to do the treatment of waste water and discharge it in given specification by pollution control board. Here in this paper the review of all treatments related to waste water is described in detail which is very important to all of the chemical industries.

Keywords: Waste water, chemical industry, primary treatment, secondary treatment, tertiary treatment.

[1]. Flynn, D. J, The Nalco water handbook. (IIIrd edition Tata McGraw Hill USA 2009. 667-766)
[2]. Tchobanoglous, G., and Baurton, F. L., waste water engineering (Metcalf and Eddy IIIrd edition Tata McGraw Hill New Delhi 1995.694-749)
[3]. Arceivala, S. J., Waste water treatment for pollution control. (Tata McGraw Hill New Delhi 2002. 105-134. 352-357)
[4]. James, G. V., Water treatment (IIIrd edition Asia Publishing house London 1965. 262-276.

Quantum mechanics is one of the branches of physics. In this mechanics, physical problems are solved by algebraic and analytic methods. By applying a simple procedure we can find the general solutions of Schrodinger's time - independent wave equation of one dimensional quantum mechanical harmonic oscillator without making any approximation. In this paper, we will discuss the Eigenenergy values and Eigenfunctions of one of the most important physical models of quantum mechanics, namely the one-dimensional Quantum mechanical Harmonic Oscillator by modifying the Hermite differential equation.

Keywords: Eigenfunctions, Eigenvalues, harmonic oscillator, Hermite polynomials.

[1]. Quantum mechanics by Satya Parkash. Edition: Reprint, 2016.
[2]. A text book of Engineering Physics by M.N. Avadhanulu. Revised edition 2014.
[3]. Introduction to Quantum mechanics by David j. Griffiths. Edition 2nd, 2017.
[4]. Principles of quantum mechanics by P.A.M. Dirac. Edition: Reprint, 2016.
[5]. Quantum Mechanics and Path Integralsby Richard P. Feynman, Albert R. Hibbs, Daniel F. Styer.

In the present work, spinel nickel ferrite (NiFe2O4) nanoparticles were prepared through chemical co-precipitation method taking nitrates as raw materials. The molar ratio of nickel to ferric was kept at 1:2 (0.25 M and 0.5 M respectively) proportion. The pH of the mixed solution was maintained at 7 by adding 2 M NaOH solution. The prepared powder was sintered at 600C for 4 h and same is used for further characterizations. X-ray diffraction and scanning electron microscopy techniques were used to study the structure and morphology. The X-ray diffraction pattern shows the entire diffraction peak belonging to cubic spinel structure. No extra peak other than cubic phase was seen in the XRD pattern..............

Keywords: Nickel Ferrite, Chemical co-precipitation, XRD, SEM.

[1]. Goldman, A. (2006), Modern ferrite technology, Springer Science & Business Media.
[2]. Sharifi, I., Shokrollahi, H., & Amiri, S. (2012), Ferrite-based magnetic nanofluids used in hyperthermia applications, Journal of magnetism and magnetic materials, 324(6), 903-915.
[3]. Ognjanović, M., Stanković, D. M., Ming, Y., Zhang, H., Jančar, B., Dojčinović, B. & Antić, B. (2019), Bifunctional (Zn, Fe)3O4 nanoparticles: Tuning their efficiency for potential application in reagentless glucose biosensors and magnetic hyperthermia, Journal of Alloys and Compounds, 777, 454-462.
[4]. Routray, K. L., Saha, S., & Behera, D. (2019), Green synthesis approach for nano sized CoFe2O4 through aloevera mediated sol-gel auto combustion method for high frequency devices, Materials Chemistry and Physics, 224, 29-35.
[5]. Bahiraei, H., & Ong, C. K. (2019), The role of iron ions on microstructural and magnetic properties of MgCuZn ferrites prepared by sol-gel auto-combustion process, Materials Research Bulletin, 111, 195-201.

Service according to Kotler (2012) is every action or activity that can be offered by one party to another party. The service quality is tightly related to the customer‟s perceptions about the quality of a business. Based on the preliminary survey results could be concluded that from the five aspects observed, that were: the product‟s price, the outlet‟s atmosphere, the product‟s availability, services aspect, and the product‟s display showed that the first highest aspect that the customers considered to be improved was the services aspect (65%). The second aspect was the product‟s availability (60%), and the third was the product‟s price (55%). It could be concluded that the customers considered about the lack of services in the outlets and needed to be improved............

Keywords: Retail, service quality, customer‟s satisfaction, SERVQUAL Method, Quality Function Deployment.

[1]. Ardhana, (2010). Thesis of Analisis Pengaruh Kualitas Pelayanan, Harga dan Lokasi Terhadap Kepuasan Pelanggan. Semarang: Diponegoro University.
[2]. Cohen, L. (1995). Quality Function Deployment: How to Make QFD Work for You Addison - Wesley Publishing Company, New York
[3]. Herwanto,et al (2012). "Improving The Service Quality By Using Importance Performance Analysis And House Of Quality In Smk Plus Laboratorium Indonesia, Karawang". International Journal of Engineering and Applied Sciences. March 2013. Vol. 2, No.3.
[4]. Kotler, P. (2012). "Marketing Management (15e), Global Edition‟. New York: Pearson Education, Inc.
[5]. Naik, C.N. Krishna, et al (2010). Service Quality (Servqual) and its Effect on Customer Satisfaction in Retailing (Case Study: The Service At Retail Units In The South Indian State Of Andhra Pradesh). ELK Asia Pacific Journal of Marketing and Retail Management.

A solar resource assessment done to know the amount of solar radiation available at Indore showed that Indore receives about 5.17kWh/m2/day. The financial analysis carried out using RETScreen through three different tracker axis mode as fixed axis, one axis and dual axis tracker revealed that at a grid connected solar PV dual axis tracker mode has 35% more output power from solar irradiation as compare to fixed axis system.Results of the analysis indicate that, the project when implemented will supply about 35% as compare to fixed axis tracker PV system. The project also stands the chance of saving about 606 tonnes of CO2 which would have been emitted by a crude oil-fired thermal power plant generating the same amount of electricity.

Keywords: photovoltaic cell, inverter, Grid system

[1]. A Khalid, H Junaidi - Renewable energy, 2013 – Elsevier Received 15 July 2011, Accepted 20 June2012,Available online 24 July 2012.
[2]. M.Jazayeri, S.Uysal, K.Jazayeri, "Experimental analysis of effects of installation alignment and solar isolation on power generation by solar panels". pp. 35-40, October 2013.
[3]. G. of P. Statistics Division, Pakistan Bureau of Statistics, "PRESS RElEASE ON INFlATION RATE," 2013.
[4]. Md. Rabiul Islam, Youguang Guo, Jian Guo Zhu and M. G. Rabbani, "Simulation of PV Array Characteristics and Fabrication of Microcontroller Based MPPT", IEEE International Conference on Electrical and Computer Engineering ICECE, December 2010, pp. 155-158.
[5]. De Wild-Scholten, Mariska (2013). "Energy payback time and carbon footprint of commercial photovoltaic systems". Solar Energy Materials & Solar Cells 119: 296–305.doi:10.1016/j.solmat.2013.08.037

Data mining on medical data has great potential to improve the treatment quality of hospitals and increase the survival rate of patients. Data mining techniques are used for a variety of applications. In healthcare industry, data mining plays an important role in early stage of the diseases prediction .It is very helpful to the patients and hospital if the possibility of disease is identified in early stages based on data collected from patients through various methods (either conducting interview or data from various medical tests) By applying different data mining algorithms. So doctors can easily anticipate the future diseases of patients, can give advice or prescribe medicine. As a result patients get cure in early stage of the disease. The main drawbacks of the previous studies are that need accurate and more number of features. The study proposed a Data mining model has been developed using improvised Principle Component Analysis to improve the early stage Disease prediction.............

Keywords: Data Mining, Machine Learning, Healthcare, Disease prediction, Medical Data Analytics.

[1]. Yi Mao, Yixin Chen, Gregory Hackmann, "Medical Data Mining for Early DeteriorationWarning in General HospitalWards". IEEE, 2011.
[2]. Asha Unnikrishnan, Senthil Kumar. B. "Biosearch: A Domain Specific Energy Efficient Query Processing and Search Optimization in Healthcare Search Engine". Journal of Network Communications and Emerging Technologies. Volume 8, Issue 1, January (2018).
[3]. Neesha Jothi, Nur'Aini Abdul Rashid. "Data Mining in Healthcare – A Review". Organizing Committee Of Information Systems International Conference. Volume 72, 306 – 313, 2015.
[4]. Senthil Kumar B, Bhavitha Varma E. "A Survey on Text Categorization". International Journal of Advanced Research in Computer and Communication Engineering. Vol. 5, Issue 8, August 2016.
[5]. J.Sasitha Burvin, Dr.K.Dhanalakshmi. "Pandemic Disease Detection And Prevention System Using Mining With Graph-Based Approach". International Journal of Pure and Applied Mathematics. Volume 118 No. 20 2018.

The present paper deals with the study of rotation effect on the propagation of Stoneley waves at the interface of two dissimilar orthotropic micropolar solid media in the framework of linear theory including Coriolis and Centrifugal forces. The basic equations are solved to obtain the general surface wave solutions of the medium in x-y plane. The medium is rotating about an axis perpendicular to its plane. Following radiation conditions in the media, the particular solutions are obtained, which satisfied the appropriate boundary conditions at an interface to obtain the secular equations of the Stoneley wave in media. Limiting case of Rayleigh wave is also deduced from the present investigation.

Keywords: Stoneley wave, Rayleigh wave, rotation, secular equation, orthotropic, micropolar.

[1]. Ewing W.M., Jardetzky W.S. and Press F. Elastic waves in layered Media. McGraw-Hill Company Inc. 1957; New York, Toronto, London.
[2]. Brekhoviskikh L.M. Waves in Layered Media. Academic Press, 1960; New York.
[3]. Achenbach J. D. Wave propagation in elastic solids .Vol. 16, North-Holland Publishing Company. 1973; Amsterdam, Elsevier.
[4]. Bullen K.E. and Bolt B.A. An introduction to the theory of Seismology, Cambridge University Press. 1985; Cambridge, UK.
[5]. Rayleigh J.W.S. On waves propagated along the plane surface of an elastic solid, Proceedings London Mathematical Society. 1985; 17(1): 4-11.

In engineering, procurement, and construction (EPC) business process, procurement process is a process that greatly influences the success of getting projects and completing projects that have been acquired in addition to the engineering, construction and commissioning processes. To find out whether a procurement organization in EPC contractors has performed its function properly, a method of performance measurement is needed by establishing Key Performance Indicator and by performing performance measurements on predetermined indicators. The method used is Bayesian Network Modelling by selecting experts as respondents for the questionnaire, determining the Key Performance Indicator, collecting data and forming cycles and links between nodes so that the Bayesian Network Modelling construction is formed. The next step is calculating the probability of each node which can then form a performance measurement model, and a suitability test was done by using the chi-square test..............

Keywords: EPC, Procurement, Key Performance Indicator, Key Result Indicator, Bayesian Network Modelling.

[1]. Abolbashari, M. H., Chang, E., Hussain, O. K., & Saberi, M. (2017). Smart Buyer: A Bayesian Network Modelling Approach for Measuring and Improving Procurement Performance in Organisations. Knowledge-Based Systems, 142, 127–148.
[2]. Hosen, R. Z. (2007). Presentasi EPC Project Overview.
[3]. Parmenter, D. (2007). Key Performance Indicator, PT Elex Media Komputindo, Jakarta.
[4]. PMI. (2013). A Guide to the Project Management Body of Knowledge. Project Management Institute (Vol. 5).
[5]. Reh, F. J. (2007). Key Performance Indicators. Retrieved from http://management.about.com/cs/generalmanagement/a/keyperfindic.htm

Smart cities are need on an hour for the holistic development and growth of nation. Government is committed to provide basic services to the people living in urban areas with Intelligent Governance. Such governance in smart cities could be provided to its citizen through the use of Digital Gadgets and creating a network of Digital services. Digital network is a combination of interconnected digital devices creating Internet of Things, while communicating and exchanging services to each other producing voluminous data. This data produced is converted into knowledge and self-operated services using Big Data mechanism. IoT and BigData techniques are Digital services creating new cyber world..............

Keywords: Smart Cities, Security, Digital Forensics, Cyber Security, Challenges of Smart City, Cryptography, Digital Network.

[1]. Internet-of-Things Based Smart Cities: Recent Advances and Challenges, Yasir Mehmood, Farhan Ahmad, Ibrar Yaqoob, Asma Adnane, Muhammad Imran, and Sghaier Guizani, IEEE Communication Magazine 55(9) · September 2017
[2]. A. Zanella, N. Bui, A. Castellani, L. Vangelista, and M. Zorzi, ―Internet of Things for Smart Cities,‖ Internet of Things Journal, IEEE, vol. 1, no. 1, pp. 22–32, 2014.
[3]. J. Gubbi, R. Buyya, S. Marusic, and M. Palaniswami, ―In- ternet of Things (IoT): A Vision, Architectural Elements, and Future Directions,‖ Future Generation Computer Sys- tems, vol. 29, no. 7, pp. 1645–1660, 2013.
[4]. A. Gluhak, S. Krco, M. Nati, D. Pfisterer, N. Mitton, and T. Razafindralambo, ―A Survey on Facilities for Ex- perimental Internet of Things Research,‖ Communications Magazine, IEEE, vol. 49, no. 11, pp. 58–67, 2011.

Let 𝐺=(𝑉,𝐸) be a connected simple undirected graph. A subset S⊆𝑉 is a dominating set if for every vertex 𝑣∈𝑉/𝑆, there exists a vertex 𝑤∈𝑆 such that 𝑣𝑤∈𝐸; that is every vertex outside S has atleast one neighbor in S. The minimum cardinality of a dominating set of G is the domination number of G, it is denoted by 𝛾(𝐺)..............

Keywords: Domination set, Domination polynomial, Lollipop graph, Perfect domination, Perfect domination polynomial.

[1]. E.J. Cockayne, B.L. Hartnell, S.T. Hedetniemi and R. Laskar, Perfect domination in graphs, J. Combin. Inform. System Sci. 18(1993), 136–148.
[2]. E.J. Cockayne, and S.T. Hedetniemi Towards a theory of domination in graphs,
[3]. Networks, (1977) 247–261.
[4]. Daisy P. Salve and Enrico L. Enriquez , Inverse Perfect Domination in Graphs
[5]. Iain Angus Cameron Beaton, DOMINATION POLYNOMIALS

This paper presents, the effect of chemical treatment on the mechanical properties of luffa fibre reinforced polyester composites. The luffa fibre was extracted from luffa plant by manual stripping into strands. Treatment was carried out on the fibre at room temperature for 30 minutes with 10 molar solution of NaOH and then sun drying for 72hours. The treated fibre was used to develop the luffa fibre reinforced polyester composites using hand lay-up method in predetermined proportions of 3, 5, 6 and 9% after which it was tested for mechanical properties. Polyester-resin was used as binder. From the results, it was observed that, the tensile strength varied from 7.9 -11.9MPa. The optimum tensile strength of 11.9MPa was obtained at 6% of fibre volume fraction of treated luffa fibre composites.............

Keywords: Chemical treatment, Mechanical properties, Luffa fibre, Polyester, Composite, Scanning electron microscopy(SEM).

[1]. Aguilar-Vega. M., (1991). Physical and Mechanical properties of natural fibers.
[2]. Ahmad F., Choi H. S., Park M. K. (2015). A Review: Natural Fiber Composites Selection in View of Mechanical, Light Weight, and Economic Properties. Macromol. Mater. Eng.
[3]. 300: 1024.
[4]. Alvarez, V.A, Ruscekaite, R.A, Vazquez A, Mechanical properties and water absorption behavior of composites made from a biodegradable mat.
[5]. Azeez M. A., Bello O. S., Adedeji A. O. (2013).Traditional and medicinal uses of luffa cylindrical: Areview. J. Medi.Plants studies. 1: 102-111.

Environmental degradation issues are of topical concern to communities in the Niger Delta region of Nigeria. Over the years, there has been strong agitation over polluted farm lands in the Niger Delta region by oil companies operating in the area. This is as a result of oil exploration and exploitation in the region. The people in the region can no longer expect good harvest from their farm lands due to oil pollution. This paper is set to investigate the effect of crude oil pollution on soil phosphorus nutrient with time. The soil sample collected from the university research farm was artificially polluted with 0.05, 0.1, 0.15, 0.2, and 0.25 liters perkg of soil. The polluted soils were tested using standard methods at 14days interval.The panel Data Regression model (PDRM) was used to analyze the data..............

Keywords: Soil nutrient, Pollution, Phosphorus, depletion model.

[1]. Abii, T.A. &Nwosu, P.C. (2009). The Effect of oil Spillage on the soil of Eleme in Rivers State of the Niger-Delta Area of Nigeria. Research Journal Environmental Science, 3:316 – 320.
[2]. Akinrinde, E.A. &Obigbesan, G.O. (2000). Evaluation of Fertility Status of Selected Soils for Crop Production in five Ecological Areas of Nigeria.Proc. 26th Annual Conf. Soil Sci. Soc. Nig. Ibadan, Oyo State. Pp. 279 – 288.
[3]. Akpan, I.E. (2014). Data requirements for modeling nutrient depletion in crude oil contaminated soil (Final year student project).
[4]. Dobermann, A.; Witt, C. &Dawe, C. (2002). Site-specific Nutrient Management for Intensive Rice Cropping Systems in Asia. Field Crops Research 74(1), 24.
[5]. Enwezor, W.O., Ohiri, A.C., Opowaribo, E.E. & E.J. Udo (1990). A review of soil fertilizer use in crops in Southern zone of Nigeria (in five volumes). Produced by the Fed. Min. of Agric. and National Research, Lagos.

In contemporary machining industries, the challenge ascends to manufacture good quality of product with effective cost. In slighter way, but no less significant, turning process in CNC lathe machine has begun to see a technology fruition, in which surface roughness (Ra) plays a vital aspect concerning the quality and costing of turning operations. Taguchi method was implemented for integral design, such as selecting three parameters with their three different suitable levels and based on this, Taguchi orthogonal array (L9) was selected. Turning parameters were elected viz. feed rate (F), spindle speed (V) and depth of cut (D). AISI D2 (high carbon high chromium) material was selected due to its ample use in thread rolling, shear blades, dies, burnishing rolls, etc. and is one of the most arduous specimens to be machined. Experimentation was implemented, based on the preferred parameters on CNC lathe machine with insert tool TnMg connected with accelerometer (sensor), data acquisition system............

Keywords: AISI D2; ANOVA; Surface roughness (Ra); Taguchi method; Turning; Vibration Analysis

[1]. Uttara R. Salunke and Prof. M. G. Rathi, Optimization of Hard turning process parameters of AISI D2 under dry cutting conditions, International Journal Of Scientific & Engineering Research, Volume 6, Issue 3, March-2015 ISSN 2229-5518.
[2]. R. A. Muley, A. R. Kulkarni, R. R. Deshmukh, Optimization of Surface Roughness and Material Removal Rate in Turning of AISI D2, 54th IRF International Conference, 8th May 2016, Pune, India, ISBN: 978-93-86083-10-4.
[3]. Tushar Sonar, Sachin Lomte, Chandrashekar Gogte and V. Balasubramanian, Minimization of Distortion in Heat Treated AISI D2 Tool Steel: Mechanism and Distortion Analysis, 2nd International Conference on Materials Manufacturing and Design Engineering, Elsevier B. V.
[4]. Meenu Sahu and Komesh Sahu, Optimization of Cutting Parameters on Tool Wear, Work piece Surface Temperature and Material Removal Rate in Turning of AISI D2 Steel, International Journal of Advanced Mechanical Engineering, Volume 4, Number 3 (2014), pp. 291-298, ISSN 2250-3234.