Vol. 35 No. 4 (2026): Nigerian Journal of Physics - Vol. 35 No. 4

Published: 2026-07-02

Articles

MEASUREMENT OF SCATTERED AND LEAKAGE RADIATION IN X-RAY FACILITIES FROM SELECTED CENTERS IN WARRI METROPOLIS, DELTA STATE 573

Sylvester Obakpororo Ovwasa, Joy Amuofu Adonuja, Kparobo Godwin Agbajor, Franklin Anita Akpolile

https://doi.org/10.62292/njp.v35i4.2026.573
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RESERVOIR CHARACTERIZATION USING INTEGRATED PETROPHYSICAL EVALUATION, SEISMIC ATTRIBUTES, AND AVO MODELING IN JASMI FIELD, NIGER DELTA BASIN 641

David Asuba Igonoh, Godwin Omokenu Emujakporue, Sonny Inichinbia

https://doi.org/10.62292/njp.v35i4.2026.641
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DESIGN AND SIZING OF AN OFF-GRID SOLAR PHOTOVOLTAIC (PV) SYSTEM FOR AN OFFICE UNIT AT MODIBBO ADAMA UNIVERSITY, YOLA-NIGERIA 630

Mohammed Faisal Isa, Haruna Sallau Bayel, Muktar Bello, Joseph Aidan

https://doi.org/10.62292/njp.v35i4.2026.630
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DEPLOYMENT OF ELECTRICAL RESISTIVITY METHOD FOR EVALUATION OF SUSTAINABLE GROUNDWATER RESOURCES IN LAPAI, NIGER STATE, NIGERIA 695

Hadiza H. Ndanusa, Abdulwahid K. Aweda, Yusuf U. Tanko, Jibrin A. Yabagi, Aliyu Saleh

https://doi.org/10.62292/njp.v35i4.2026.695
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COMPARISON OF COSMIC RAY INTENSITY VARIATIONS AT MOSCOW AND OULU STATIONS 618

Ogbonnaya Okike, Patience I. Akande-Rowland, Miracle Okoro Ikoro, Augustine Ogonna Chikwendu, Meka …

https://doi.org/10.62292/njp.v35i4.2026.618
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APPLICATION OF GEOELECTRIC AND HYDROGEOLOGICAL METHODS IN DELINEATION OF AQUIFER POTENTIAL AND PROTECTIVE CAPACITY IN PARTS OF ASABA METROPOLIS, NIGER DELTA … 673

Francis Onyemaechi Chukwusa, Yemi Sikiru Onifade, Victor Babasola Olaseni, Moses Oghenenyoreme …

https://doi.org/10.62292/njp.v35i4.2026.673
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RADIOLOGICAL DOSE AND HEALTH RISK ASSESSMENT OF NATURALLY OCCURRING RADIOACTIVE MATERIALS AT KATAEREGI ARTISANAL MINING SITE, NIGER STATE USING RESRAD CODE 588

Abdullahi Muhammad

https://doi.org/10.62292/njp.v34i2.2025.588
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HUMAN HEALTH RISK ASSESSMENT OF HEAVY METALS IN CASSAVA CULTIVATED NEAR 33 KV HIGH-VOLTAGE POWER LINES IN BENUE STATE, NIGERIA 642

Aba Solomon Akiki, Jande Sylvester Gemanam

https://doi.org/10.62292/njp.v35i4.2026.642
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CHARGE TRANSPORT OPTIMISATION IN CRYSTALLINE SILICON PHOTOVOLTAIC SYSTEMS: DESIGN, FABRICATION, AND EXPERIMENTAL EVALUATION OF A 60 A MAXIMUM POWER POINT TRACKING … 631

Ayodeji Silas Idowu, Ozuem Victor Edward, Quadri Oluwaseyi Azeez, Gabriel Oluwasola Sunday, Tunde D. …

https://doi.org/10.62292/njp.v35i4.2026.631
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THE EFFECT OF DOPANTS ON THE SOLID STATE AND OPTICAL PARAMETERS OF TIO2 / MGO THIN FILM 696

Precious Ugochinyerenwa Chimah, Patricia Benedict Otah, Patience Ifenyinwa Akande, God’swill Chinonso …

https://doi.org/10.62292/njp.v35i4.2026.696
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VOLTERRA ADAPTIVE FILTER FOR REAL-TIME OTDR MONITORING AND FAULT LOCALISATION IN FIBRE OPTIC NETWORKS 623

Ozuem Edward, Johnson Ayeni, Ndifreke U. Ebong

https://doi.org/10.62292/njp.v35i4.2026.623
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COMPARATIVE ANALYSIS OF EMISSIONS FROM DIESEL AND GASOLINE POWERED GENERATORS WITHIN BINGHAM UNIVERSITY CAMPUS, KARU, NASARAWA STATE, NORTH-CENTRAL, NIGERIA 679

Stephen Osas Eghaghe, Favour Adeoye, Theophilus Toro Danjuma, James Eneye, Victoria Taye Oluwasusi, …

https://doi.org/10.62292/njp.v35i4.2026.679
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PERFORMANCE EVALUATION OF SATELLITE GRAVITY ON VARIABLE TEST POINTS AND GEOPHYSICAL MODELS IN GONGOLA BASIN, NIGERIA 591

Adamu Aliyu Bagare

https://doi.org/10.62292/njp.v35i4.2026.591
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PM₂.₅ EMISSIONS FROM OFFICE LASER PRINTERS: REAL-TIME EXPOSURE ASSESSMENT AND RISK MITIGATION 644

Oluwasayo Peter Abodunrin, Oluwaseun Dosunmu, Inioluwa Olowofila, Oladipupo Olanrewaju, Augustine …

https://doi.org/10.62292/njp.v35i4.2026.644
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SEGMENTED ROTOR MAGNETIC FLUX SWITCHING DEVICE FOR HIGH-PERFORMANCE ELECTRIC MOTORCYCLES AND SCOOTERS APPLICATIONS 633

Kasim Ibrahim Mohammed, Mohammed Ahmed

https://doi.org/10.62292/njp.v34i2.2025.633
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A LOW-COST LIDAR BASED IOT SYSTEM FOR REAL-TIME REMOTE GROUNDWATER LEVEL MONITORING: DESIGN, VALIDATION AND FIELD DEPLOYMENT 625

Michael Atenaga, Samuel Azi

https://doi.org/10.62292/njp.v35i4.2026.625
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ASSESSMENT OF HOUSEHOLD ELECTRICITY CONSUMPTION AND APPLIANCE ENERGY DEMAND IN MAIDUGURI, NIGERIA 680

Muhammad M. Machina, Aminu Aliyu Safana, Sabiu Said Abdullahi, Mustapha Kabiru, Lawan Haruna

https://doi.org/10.62292/njp.v35i4.2026.680
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EFFECT OF TEMPERATURE AND RETENTION TIME ON THE QUALITY OF BIOCHAR OF SOME AGRICULTURAL WASTE 600

Lawan Haruna, Aliyu Aminu Safana, Ibrahim Murtala Musa, Hafeez Y. Hafeez, Umar M. Dankawu, Muhammad …

https://doi.org/10.62292/njp.v35i4.2026.600
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FUZZY-BASED ADAPTIVE GUARD CHANNEL ALLOCATION SCHEME WITH DUAL BUFFER IN MOBILE NETWORK 645

Olufunmilayo Adenike Lawal, Olusegun Ayodeji Ojesanmi, Omotola Rafiat Oyelowo, Khadijha-Kuburat A. …

https://doi.org/10.62292/njp.v35i4.2026.645
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SYNTHESIS OF POLYVINYLIDENE FLUORIDE-GRAPHENE BASED POLYMER NANOCOMPOSITE WITH ENHANCED PIEZOELECTRIC PROPERTIES 539

Aliyu Abdulraheem, Sadiq Umar, Sanda Abubakar Sadiq, Abdelghaffar Amoka Abdelmalik

https://doi.org/10.62292/njp.v35i4.2026.539
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A STUDY OF PRE-EARTHQUAKE IONOSPHERIC ANOMALY (PEIA) IN LOW LATITUDE/ EQUATORIAL REGION TEC USING THE WAVELET POWER SPECTRUM METHOD 635

Afolabi Adegboyega Kotoye, Olukayode Elijah Falayi, Johnson Olufemi Adepitan, Bolarinwa John Adekoya, …

https://doi.org/10.62292/njp.v35i4.2026.635
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SYNTHESIS, SPECTROSCOPIC STUDIES AND BIOLOGICAL ACTIVITY OF CU(II) COMPLEX OF SCHIFF BASE LIGAND 3-((2-(2,4-DINITROPHENYL)HYDRAZINEYLIDENE)METHYL)PYRIDINE WITH … 626

Olufemi S. Odulaja, Christiana I. Ayangbesan, Adetutu V. Williams, Christiana A. Adeleye, Taofeeq F. …

https://doi.org/10.62292/njp.v35i4.2026.626
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INVESTIGATION OF POTENTIAL MINERAL ENTRAPMENT USING AIRBORNE MAGNETIC AND RADIOMETRIC DATA OF ADO-EKITI, SOUTHWESTERN NIGERIA 682

Adedeji Adegoke Adetoyinbo, Titus Taofik Ogunseye, Folashade Lucia Aderemi, James Adeyemo Adegoke, …

https://doi.org/10.62292/njp.v35i4.2026.682
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TIME SERIES MODELLING OF THREE-DIMENSIONAL TEMPERATURES ACROSS NIGERIA USING DATA FROM COSMIC 609

Ugochukwu Ihemaguba, Chidi Emmanuel Akujor, Romanus E. Ugwoke, Costecia Ifeoma Onah

https://doi.org/10.62292/njp.v35i4.2026.609
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POROSITY AND GEOMECHANICAL CHARACTERISTICS OF BANDED IRON ORE FROM ITAKPE, NORTH CENTRAL NIGERIA 654

Amidu Abiola Ige-Adeyeye, Olawale Babatunde Olatinsu, Vitalis Chidi Ozebo, Lionel Esteban

https://doi.org/10.62292/njp.v35i4.2026.654
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THE ENERGY SPECTRA OF SOLUBLE POTENTIALS WITHIN THE FRAMEWORK OF THE VARIATIONAL METHOD<B></B> 569

Ekwevugbe Omugbe, Etido P. Inyang, Clement A. Onate

https://doi.org/10.62292/njp.v34i2.2025.569
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SIMULATION AND OPTIMIZATION OF CDTE AND CIGS THIN-FILM SOLAR CELLS WITH DUAL ETLS (CDS, ZNO) USING SCAPS-1D: A COMPARATIVE APPROACH 636

Damian E. Adukwu, Solomon Denen Igba, Peverga R. Jubu, Adebayo Ademola

https://doi.org/10.62292/njp.v35i4.2026.636
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INVESTIGATING THE STRUCTURAL, ELASTIC, ELECTRICAL, AND THERMODYNAMIC CHARACTERISTICS OF NBCOSN AND VRHSN HALF-HEUSLER COMPOUNDS USING FIRST-PRINCIPLES CALCULATIONS 629

Eddy Enorense Aigbekaen, Fidelia Chukwudumebi Ighrakpata

https://doi.org/10.62292/njp.v35i4.2026.629
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GEOPHYSICAL AND PHYSICOCHEMICAL INVESTIGATION OF LEACHATE PLUME DISTRIBUTION AND ITS IMPACT ON GROUNDWATER RESOURCES IN SOME PARTS OF NASARAWA STATE 689

Paul Amade Emmanuel, Adeeko Tajudeen Olugbenga, Farouq Ado Umar Farouq Ado Umar

https://doi.org/10.62292/njp.v35i4.2026.689
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<B>ASSESSMENT OF EXCESS LIFETIME CANCER RISK FROM INDOOR RADON EXPOSURE IN OBIO-AKPOR LOCAL GOVERNMENT AREA, RIVERS STATE, NIGERIA</B><B>.</B> 610

Diamond George, Margaret Apaemi Briggs-Kamara, Chinoye Amakiri Raymond

https://doi.org/10.62292/njp.v35i4.2026.610
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Review Articles

MACHINE LEARNING AND REMOTE SENSING FOR GULLY EROSION SUSCEPTIBILITY MAPPING IN SOUTHEAST NIGERIA: PROGRESS, CHALLENGES, AND RESEARCH PRIORITIES 655

Oludare Olukayode Babalola, Babatunde Adebo, Odunayo Christiana Ogunleye, Rukayat Damilola Adedokun

https://doi.org/10.62292/njp.v35i4.2026.655
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