Profile cover photo
You're now following
Error following user.
This user does not allow users to follow them.
You are already following this user.
Your membership plan only allows 0 follows. Upgrade here.
Successfully unfollowed
Error unfollowing user.
You have successfully recommended
Error recommending user.
Something went wrong. Please refresh the page and try again.
Email successfully verified.
User Avatar
$15 USD / hour
Flag of NIGERIA
$15 USD / hour
It's currently 6:36 PM here
Joined June 14, 2020
0 Recommendations

Charles O.

@Brazilmary

5.0 (30 reviews)
5.1
5.1
91%
91%
$15 USD / hour
Flag of NIGERIA
$15 USD / hour
93%
Jobs Completed
99%
On Budget
93%
On Time
14%
Repeat Hire Rate

Chemical engineer, Research writer, content writer

I am a dedicated and experienced chemical engineer with passion for excellence. I write Technical reports such as CDR for Engineers Australia and other Technical Writings. I can speak Chinese in close fluency. I took 18 months of Chinese classes from 2018 to 2020. I am capable of writing on different engineering fields such as mechanical engineering, electrical engineering, environmental engineering, power engineering, energy engineering, chemical engineering, electronics and computer engineering, and agricultural engineering I am a versatile writer with more than 4 years experience in writing. My writing skills include technical writing blog posts content writing article writing and rewriting proofreading paraphrasing editing website contents academic writing, etc.

Contact Charles O. about your job

Log in to discuss any details over chat.

Portfolio

9446871
9446857
9420937
9420933
7425199
7425216
9446871
9446857
9420937
9420933
7425199
7425216

Reviews

Changes saved
Showing 1 - 5 out of 30 reviews
Filter reviews by:
5.0
£300.00 GBP
Professional, Punctual, Polite. Thank you!
C
Flag of Daniel P.
@CCP2021
2 years ago
5.0
$20.00 USD
Outstanding work, really happy. Recommanded.
Engineering
Technical Writing
Chemical Engineering
Research Writing
+1 more
User Avatar
Flag of Praveen P.
@PraPawar
3 years ago
5.0
$100.00 USD
Charles did a great job, texts are properly references, and tabular data is also provided. Thanks for the great effort.
Technical Writing
Article Writing
Research Writing
Content Writing
User Avatar
Flag of Praveen P.
@PraPawar
3 years ago
5.0
₹350.00 INR
Mr. Charles did a great job. He submitted quality work before time. I will again hire him definitely.
Engineering
Technical Writing
Chemical Engineering
Research Writing
+1 more
P
Closed User
@princeteotia
3 years ago

Experience

Graduate research assistant

Nnamdi Azikiwe University
Oct 2016 - May 2018 (1 year, 7 months)
I helped my supervisor to work on extra project works and I published two research papers under him

Education

B.Eng (Chemical Engineering)

Nnamdi Azikiwe University, Nigeria 2011 - 2016
(5 years)

Qualifications

Health, Safety and Environment

British International Safety Organization
2018
I received three certificates on HSE, after completing the requirements for the course.

Publications

Process thermodynamic, kinetics and statistical analysis of Gmelina arborea seed oil extraction

Case Studies in Chemical and Environmental Engineering (Elsevier)
This work aims at evaluating the effects of process variables like particles size, temperature, and time, on Gmelina arborea seeds oil (GASO) extraction, its characterization and statistical analyses of the obtained results. Additionally, oil extraction process kinetics and thermodynamics were studied. It became essential to carry out this research as no work on extensive extraction data on GASO extraction exist.

RSM/ANN based modeling of methyl esters yield from Anacardium occidentale kernel oil

Current Research in Green and Sustainable Chemistry (Elsevier)
This study is on the modeling of methyl esters production process; obtained by the transesterification of Anacardium occidentale kernel (AOK) oil (AOKO), using artificial neural network (ANN) and response surface methodology (RSM). AOKO was obtained from the kernels/seeds of Anacardium occidentale tree.

Optimization of key process parameters for solvent extraction of oil from melon seeds using RSM..

Taylor and Francis Publishers (Journal of the Chinese Advanced Materials Society)
This was my second research paper.

Kinetics, thermodynamics and process parameter impact on solvent extraction of oil from melon seeds.

Taylor and Francis Publishers (Journal of the Chinese Advanced Materials Society)
This was my first research paper.

Contact Charles O. about your job

Log in to discuss any details over chat.

Verifications

Preferred Freelancer
Identity Verified
Payment Verified
Phone Verified
Email Verified
Facebook Connected

Certifications

preferredfreelancer-1.png Preferred Freelancer Program SLA 1 82%
Previous User Next User
Invite sent successfully!
Thanks! We’ve emailed you a link to claim your free credit.
Something went wrong while sending your email. Please try again.
Registered Users Total Jobs Posted
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Loading preview
Permission granted for Geolocation.
Your login session has expired and you have been logged out. Please log in again.