Romanus Ajefu Onuche - Articles - Scientific Research Publishing

Impact of Just-in-Time (JIT) Delivery on Operational Efficiency: A Study of Selected Manufacturing Firms in South-West Nigeria (Articles)

Gabriel Onuche Ubolo, Yakubu Ambason Bala, Yusuf Salami, Ezra Usman Zubairu, Romanus Ajefu Onuche, Elizabeth Gebiri Mailafiya

Open Journal of Business and Management Vol.13 No.5, September 5, 2025

DOI: 10.4236/ojbm.2025.135176 206 Downloads 1,712 Views Citations
Spatial and Temporal Variation in Water Quality of River Benue, Nigeria (Articles)

Ishaq S. Eneji, Agada P. Onuche, Rufus Sha’Ato

Journal of Environmental Protection Vol.3 No.8A, August 21, 2012

DOI: 10.4236/jep.2012.328106 7,614 Downloads 12,550 Views Citations
This article belongs to the Special Issue on Water Pollution
Ab-Initio Computations of Electronic, Transport, and Related Properties of Chromium Disilicide (CrSi₂) (Articles)

Shaibu Onuche Mathias, Yuriy Malozovsky, Lashounda Franklin, Diola Bagayoko

Journal of Modern Physics Vol.9 No.14, December 20, 2018

DOI: 10.4236/jmp.2018.914158 819 Downloads 2,024 Views Citations
Discriminant Analysis of Demand-Side Roadblocks to Financial Inclusion in Northern Ghana (Articles)

Issahaku Yakubu, Romanus Dinye, Daniel Buor, Wahab A. Iddrisu

Journal of Mathematical Finance Vol.7 No.3, August 10, 2017

DOI: 10.4236/jmf.2017.73038 1,424 Downloads 3,720 Views Citations
Estimation of Population Variance Using the Coefficient of Kurtosis and Median of an Auxiliary Variable under Simple Random Sampling (Articles)

Tonui Kiplangat Milton, Romanus Otieno Odhiambo, George Otieno Orwa

Open Journal of Statistics Vol.7 No.6, December 4, 2017

DOI: 10.4236/ojs.2017.76066 1,327 Downloads 3,461 Views Citations
A Multiplicative Bias Correction for Nonparametric Approach and the Two Sample Problem in Sample Survey (Articles)

Kemtim Tamboun Stephane, Romanus Odhiambo Otieno, Thomas Mageto

Open Journal of Statistics Vol.7 No.6, December 29, 2017

DOI: 10.4236/ojs.2017.76073 1,078 Downloads 3,123 Views Citations
A Mathematical Modelling of the Effect of Treatment in the Control of Malaria in a Population with Infected Immigrants (Articles)

Olaniyi S. Maliki, Ngwu Romanus, Bruno O. Onyemegbulem

Applied Mathematics Vol.9 No.11, November 20, 2018

DOI: 10.4236/am.2018.911081 1,477 Downloads 4,036 Views Citations
Estimation of Finite Population Totals in High Dimensional Spaces (Articles)

Festus A. Were, George O. Orwa, Romanus O. Otieno

Open Journal of Statistics Vol.12 No.5, October 11, 2022

DOI: 10.4236/ojs.2022.125035 246 Downloads 915 Views Citations
Inventory and Management of Fungi Associated with Banana Plant through the Use of Allium ampeloprasum and Cymbopogon citratus Extracts (Articles)

Agyingi Lucy Ambang, Keuete Kamdoum Elie, Maah Romanus Nyamjua

Journal of Agricultural Chemistry and Environment Vol.12 No.2, April 10, 2023

DOI: 10.4236/jacen.2023.122005 306 Downloads 1,791 Views Citations
Effect of Supply Chain Management on the Performance of Nile University of Nigeria (Articles)

Yusuf Salami, Cross Ogohi Daniel, Abdulmalik Musa, Gabriel Onuche Ubolo, Emmaculate Zina

Open Journal of Business and Management Vol.12 No.4, July 16, 2024

DOI: 10.4236/ojbm.2024.124125 182 Downloads 1,112 Views Citations
Assessing the Impact of Inventory Turnover on Quality Control: A Study of Manufacturing Firms in South-West Nigeria within the Context of Supply Chain Management (Articles)

Gabriel Onuche Ubolo, Yusuf Salami, Abdulmalik Musa, Rex Ugochukwu Nwaubani, Nurudeen Abayomi Tijani

Open Journal of Business and Management Vol.12 No.6, October 25, 2024

DOI: 10.4236/ojbm.2024.126194 312 Downloads 1,742 Views Citations
Local Polynomial Regression Estimator of the Finite Population Total under Stratified Random Sampling: A Model-Based Approach (Articles)

Charles K. Syengo, Sarah Pyeye, George O. Orwa, Romanus O. Odhiambo

Open Journal of Statistics Vol.6 No.6, December 8, 2016

DOI: 10.4236/ojs.2016.66088 1,701 Downloads 3,739 Views Citations
Longitudinal Survey, Nonmonotone, Nonresponse, Imputation, Nonparametric Regression (Articles)

Sarah Pyeye, Charles K. Syengo, Leo Odongo, George O. Orwa, Romanus O. Odhiambo

Open Journal of Statistics Vol.6 No.6, December 27, 2016

DOI: 10.4236/ojs.2016.66092 1,703 Downloads 2,984 Views Citations
Corrosion Inhibitory Studies of Novel Schiff Bases Derived from Hydralazine Hydrochloride on Mild Steel in Acidic Media (Articles)

Romanus N. Njong, Bridget N. Ndosiri, Emmanuel N. Nfor, Offiong E. Offiong

Open Journal of Physical Chemistry Vol.8 No.1, February 26, 2018

DOI: 10.4236/ojpc.2018.81002 1,357 Downloads 3,878 Views Citations
Synthesis, Spectroscopic, Molecular Modeling and Anti-Fungal Studies of Some Divalent Metal Complexes of 4-Hydroxyacetophenone Isonicotinoyl Hydrazone (Articles)

Gwendoline M. Toh-Boyo, Romanus N. Njong, Estella M. Babette, Emmanuel N. Nfor

Open Journal of Inorganic Chemistry Vol.11 No.3, July 26, 2021

DOI: 10.4236/ojic.2021.113007 569 Downloads 2,510 Views Citations
Bias Correction Technique for Estimating Quantiles of Finite Populations under Simple Random Sampling without Replacement (Articles)

Nicholas Makumi, Romanus Odhiambo Otieno, George Otieno Orwa, Festus Were, Habineza Alexis

Open Journal of Statistics Vol.11 No.5, October 19, 2021

DOI: 10.4236/ojs.2021.115050 506 Downloads 2,165 Views Citations
Robust Classification through a Nonparametric Kernel Discriminant Analysis (Articles)

Macdonald G. Obudho, George O. Orwa, Romanus O. Otieno, Festus A. Were

Open Journal of Statistics Vol.12 No.4, August 11, 2022

DOI: 10.4236/ojs.2022.124028 330 Downloads 1,195 Views Citations
Classification of Stateless People through a Robust Nonparametric Kernel Discriminant Function (Articles)

Macdonald G. Obudho, George O. Orwa, Romanus O. Otieno, Festus A. Were

Open Journal of Statistics Vol.12 No.5, October 11, 2022

DOI: 10.4236/ojs.2022.125034 225 Downloads 1,087 Views Citations
Synthesis, Characterization, Spectral Analyses, Antimicrobial Activities, and Computational Studies of Some Transition Metal Complexes of N’-(2-oxo-2H-chromen-4-yl) Nicotinohydrazide (Articles)

Romanus N. Njong, Ankoro Naphthali, Gwendoline M. Toh-Boyo, Cyprian C. Mikwa, Emmanuel N. Nfor

Open Journal of Inorganic Chemistry Vol.15 No.1, January 31, 2025

DOI: 10.4236/ojic.2025.151001 77 Downloads 517 Views Citations
A Novel Mixed Ligand Dinuclear Complex of Cobalt (II): Synthesis, Characterization and Magnetic Studies (Articles)

Emmanuel N. Nfor, Luke L. Keenan, Justin Nenwa, Peter T. Ndifon, Romanus N. Njong, Christelle N. T. Dzesse, Offiong E. Offiong

Crystal Structure Theory and Applications Vol.3 No.1, March 20, 2014

DOI: 10.4236/csta.2014.31003 5,614 Downloads 8,588 Views Citations

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