Welcome to Port City International University
Summer Orientation 2023 held ||A seminar held on "Judicial Review of Administrative Actions to Ensure Good Governance in Bangladesh" Organised by Department of Law||PCIU Celebrating 10th Founding Anniversary (17/05/2023)||Tribute to Ratnagarva Begum Ashrafunnesa (Founder member of Port City International University), the mother of Mr. AKM Enamul Hoque Shameem MP, Hon’ble Deputy Minister, Ministry of Water Resources, Government of the People’s Republic of Bangladesh & Founder of Port City International University on her 5th death anniversary (May 15, 2023).||Inauguration of Faculty Training and Development Program for 25th batch faculty members organized by Institutional Quality Assurance Cell (IQAC) in association with Center for Training and Development (CTD)||The 48th meeting of Port City International University Trust was held on May 7, 2023 on online platform||"স্মার্ট বাংলাদেশের স্বপ্নে বঙ্গবন্ধুর জন্মদিন, শিশুদের চোখ সমৃদ্ধির স্বপ্নে রঙিন" ||Online Admission for Summer-2023 is going on||Dept. of law participated CLEA conference in India|| Department of CEN at PCIU hosted the 'CENtroid 2023' an inter-university mechanics olympiad|| Practical Surveying Campaign, Spring 2023 of Dept. of CEN has been started.|| ||Dept. of law participated CLEA conference in India || MOU has been signed between CIHE and PCIU (05-02-2023) || Dr. Hasina Iasmin has joined as Associate Professor in the Department of Civil Engineering having Ph.D. from Saitama University, Japan ||Accreditation of Civil, EEE, CSE, Textile is in progress.||A seminar on “cancer awareness” held ||
Port City International University at Chittagong Bangladesh, Best University at Chittagong Bangladesh

Volume 8 (ISSUE 1 & 2 December, 2021)

It is our immense pleasure that we are presenting Port City International University (PCIU) Journal, Vol-8(1+2), 2021. We have strived to publish this journal within a reasonable time-frame without compromising on the quality of the work. Honorable Advisory Board, a panel of Reviewer Board and a very supportive Editorial Board were with me throughout the process of publishing this journal.

The main focus of PCIU Journal is to present high-quality and invaluable research work on contemporary issues of Business, Social Science, Humanities, Science and Technology. All the articles have been chosen following the principles and guidelines prescribed by the PCIU. The Editorial Board has conducted a meeting to scrutinize and review the submitted articles and then selected the reviewers for their valuable expert opinions. The Authors were asked to incorporate the necessary changes, revisions and modification as suggested by the reviewers. The revised articles were further reviewed and checked by the Editorial Board members before a decision for final acceptance for publication is taken. In this way only eleven (11) articles have been selected for publication in this volume.

As the Chief Editor of the journal, I am grateful to a distinguished panel of reviewers for their co-operation and contribution with their time, effort, and experience in reviewing these articles in an objective manner and guiding the authors to improve their articles.
I would like to express my profound gratitude to the university authority, particularly, Honorable Vice-Chancellor Professor Dr. Md. Nural Anwar and Honorable Chairman of Board of Trustees Ms. Thamina Khatun for their invaluable advice and generous support in bringing out this publication in time. I commend the members of the editorial board for their invaluable assistance and relentless support for this publication. I am congratulating the authors of the articles for their successful research efforts despite some limitations.
Finally, I would like to request all readers to go through this academic endeavor with a considerate outlook and regard any remaining error with generosity.
We look forward to hearing your opinion and suggestion for further excellence of our publication. 
May almighty Allah bless all of us.

Prof. Dr. Md. Abu Taher
Chief Editor
Port City International University Journal
Port City International University, Chittagong

Science and Engineering
Computer Assistant with Bilingual Voice Commands .

 Farzina Akther*, Mohammed Saidul Islam and Miftahul Jannat Mokarrama



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Skin Cancer Classification System using Deep Learning Approach .        

Manoara Begum* and  Abdalla Suleiman Sufi 

11 View Journal
Comparative Analysis of Carded and Combed Knitted Finished Fabric 

Tahmina Jahan* and  Rajia Sultana


21 View Journal
Extraction of Chitosan from Shrimp Shells and Its Impact on Reactive Dyeing .

Md. Rezaul Karim*, Mafzal Ahmed and Shubhajit Dutta


29 View Journal
Estimation ofa Polynomial Using Newton’s Divided Difference Interpo lation Formula 

Md. Aminul Islam* and S.M. Osman Gani


37 View Journal
Calculation of aPolynomial Using Newton’s Backward Divided Differe nce Interpolation Formula 

S.M.Osman Gani*, Md. Aminul Islam


41 View Journal
Neural network approach in finding the factors behind math phobia 

Jahanara Akter Keya*, Fuhad Ahmed and Syed Anayet Karim


45 View Journal
Assessment of  the Activity Concentrations of the Terrestrial Radionucl ides in Deep-Soil Samples Collected from the Chattogram City, Chatt ogram, Bangladesh 

Abadat Hossain*, M. K. Akter, and M.M. Rahman


57 View Journal
Sound Velocities And Isentropic Compressibilities Of Binary Mixtures Of Tri-N-Butyl Phosphate With 2-Propanol And 2-Butanol At Different Temperature 

Iqbal Hossen*, M. Mehedi Hasan Rocky, and  Shamim Akhtar


65 View Journal
Non-Conventional Maritime Security Threats: The Case of Bangladesh 

Ataus Samad Raju 

77 View Journal


A psychological discourse of genocide in veronique tadjo’sthe shadowof imana: travels in the heart of rwanda 

Abdullahi Kadir Ayinde

83 View Journal
For a copy of the article please contact with Port City International University authority. Email: portcityuniversity@gmail.com, contact no: +8802333369877, +8802333369899