Ask physics questions and get answers for freeemplois

I require an adept freelance content writer to craft compelling copy for my product analytics platform. The end-goal of this copy is to generate leads and conversions, drawing in potential clients for product explorations or purchase. Project Scope: - Create high-quality, persuasive copy for our website, focusing on our homepage, about us, product descriptions, and features pages. - Ensure all content reflects our brand’s tone and meets our objectives for user engagement and conversion. - Work collaboratively with our design and marketing teams to integrate the copy into the overall website design and marketing strategies. - Optimize all content for SEO to improve our visibility in search engine results....

Veuillez vous inscrire ou vous connecter pour voir les détails.

...involves the development of coherent privacy and cookie policies for my two WordPress sites. These policies should comply with both general legal requirements and specific Google AdSense and analytical guideless. I don't possess any unique requirements for this task, but the implementation should be professional, thorough, and meet universally accepted standards for such policies. Key elements of the task include: - Developing comprehensive privacy and cookie policies. - Ensuring both policies satisfy legal requirements and Google AdSense guidelines. - Implementing these policies to be accessed via a link in the footer of each page. This experience is necessary: proficiency with WordPress, a solid understanding of pri...

...Registration and Management: The software should allow for the creation and management of user accounts, with unique, customizable profiles and a mobile OTP code verification system. - Question Bank with Different Difficulty Levels: The software needs to have an extensive and adaptable question bank, with a range of difficulty levels that can be assigned to different test papers. - Real-time Results and Analytics: The software should provide real-time results and analytics to both users and administrators. This feature is essential for tracking progress and identifying areas for improvement. Additional Features: - Secure Login: The platform must ensure secure access for all users. - Question Bank Manage...

I have made a restaurant website but i have done only frontend , i want the backend and database connectivity to be done using node js and mongo db

...This software is out dated and was made circa 2002-2004. What you need to know : This game is old (it was released in 2001) and the infrastructure is not as complex as newer mmorpg titles. This might be good and it might be bad but it helps to know. Some radars were released/developed for the original game but they no longer work. Here's an example of one: DAoC Skilla was made for the original game but it is no longer working because the version was built back in the early 2000s and support was not kept. There are source files on that website that you might find useful to copy as well as UI elements that might make this project make more sense. Things you need to know: I expect you to test this tool yourself and pr...

I'm looking for a skilled game developer to create a PC simulation game with realistic 3D visuals. Your task will involve generating a captivating and immersive environment that matches my concept seamlessly. Key responsibilities: - Design and develop a PC simulation game - Incorporate realistic 3D graphics for enhanced gaming experience Ideal Expertise: - Proficient in game development for PC - Skilled in creating simulation games - Strong capabilities in the creation of realistic 3D graphics Your expertise should eventually translate to a game that balances functionality and creativity, while captivating users with its gripping simulation and realistic design. I'm excited to work with a developer who can bring my vision to ...

In this project, I'm seeking a skilled developer to create an intuitive, comprehensive online exam system similar to that of IELTS. Key Features and Interface Requirements: - User registration and login: Prospective test-takers should be able to register themselves and log in independently. - Payment platform integration: Users should be able to pay directly on the website before taking the examination. -Ability to import questions and exam material from excel or csv - Exam result delivery: Post-exam, users must receive their scores directly presented as a percentage score on their screens and via email. Successful applications to work on this project should include past work that directly speaks to these requirements. Experience in dev...

...developer to build a ride-sharing app for both iOS and Android platforms. This app will aim to bridge the gap between drivers and passengers for intercity commuting. Key Features: User-Friendly Interface: IntercityRide offers an intuitive interface facilitating effortless ride booking and offering. Users can easily browse available journeys, view driver profiles, and book seats with just a few taps. Real-Time GPS Tracking: With our advanced GPS tracking feature, passengers can track the real-time location of their driver throughout the journey. This ensures transparency and provides peace of mind, especially for passengers traveling alone. Secure Payment System: IntercityRide incorporates a secure payment system for seam...

I'm looking for a skilled physics reviewer to assess and improve my paper. The paper primarily focuses on the fields of Quantum Mechanics and Electromagnetism. Your expertise in these areas is crucial to ensuring the accuracy and relevance of the content. The primary goal of the review is to: - Identify any errors, inconsistencies, or inaccuracies within the paper. - Provide valuable suggestions and feedback for enhancing the quality, clarity, and impact of the content. Despite the need for thorough review, the review does not require any specific formatting style. Your main task will be to focus on the content itself and its adherence to the physics principles covered. Ideal candidates should have: - A...

Social Network Mobile APP For Food Suppliers and Chiefs ( Ios - Android ) With AWS Backend 125 Screen ^^^^^^^^^^^^^^^^^^users be able to login - via phone number - via social media (Facebook, Twitter, etc.) - via SMS activation code/link - Face/Touch ID - Suggested list of users to follow - Onboarding screens ^^^^^^^^^^^^^^^^^^allow users to manage their profile - General data for profile - Edit email and name - OTP verification - Manage biometrics access - Turn on/off notifications - Close an account - T&C, Privacy Policy and other pages - Upload/ change profile picture - Add pictures to profile (Take a photo, Select from Gallery) - Import picture from Facebook/Instagram profile - Add info about yourself - Select an area on the map ^^^^^^^^^^^^^^^^...

I'm working on a Service API project and I need an expert in Node.js programming to assist me. Specifically, I need help with building the server-side logic. Ideal freelancers should have solid experience in Node.js and server-side logic creation, along with strong problem-solving skills. Your role would involve not just coding, but also answering any questions I might have about the process. Critical thinking and the ability to effectively communicate complex technical information are essential for this project.

...SEO and e-commerce website development. Your tasks would be: 1. Build an e-commerce website from scratch to sell phone and computer accessories. I expect this platform to be user-friendly and optimized to boost product sales. 2. Implement SEO on my existing website and Google business page, www.gadgetrepairpoint.com.au. Unfortunately, I missed specifying the exact SEO services I want, therefore, I ask that you discuss with me what full range SEO services you can provide. Key skills and experience necessary: - SEO (Possibly in Google My Business and website SEO) - E-commerce website development - Proven record of boosting sales through e-commerce - Proficiency in relevant tools and platforms To get shortlisted, please in...

As a beginner in Python, I'm looking for a tutor who can help me get a solid understanding of basic programming concepts, and guide me in developing web projects using Python. Key Objectives: - Understand basic programming concepts: While I am new to Python, I would like to focus on the fundamental concepts of programming. This would include understanding data types, variables, loops, conditionals, functions, and basic algorithms. - Develop web projects: I'm particularly keen on building web projects using Python. The ideal tutor should be able to guide me through creating web applications, working with web frameworks like Django or Flask, and understanding how to integrate front-end and back-end development in a web project. Ideal Skil...

I need to implement an electric arc model (heuristic model) in photovoltaic systems to simulate all the conditions present in the IEC 63027 standard. The simulation should be conducted in Simulink. If you are able to create this model, please send a message ...implement an electric arc model (heuristic model) in photovoltaic systems to simulate all the conditions present in the IEC 63027 standard. The simulation should be conducted in Simulink. If you are able to create this model, please send a message so we can discuss it further. Ideal skills and experience for this job include: - Proficiency in Simulink and simulation software. - Expertise in physics and electrical engineering to model the physical behaviors accurately. - Experience with photovoltai...

...user who also possesses a solid understanding of best practices for job interviews. The purpose of this project is to create interactive and engaging Canva presentation slides for third-year students. The presentation should last approximately 1 hour with interactive activites like role play and group dischssion. The skills and experience necessary for this task include: - Proficiency in PPT/Canva - Knowledge of effective interview techniques - Experience in designing educational resources The presentation should cover these key topics: - Techniques for before, during, and after job interviews - Communication skills - Body language in an interview - Common interview questions - Common interview mistakes Your understa...

Experts required for building an ingenious web application using Angular + Laravel. Your primary task would be the initial creation of the application, yet this could potentially extend to long-term support. Key Responsibilities: - Create a robust, scalable, and highly interactive web application. - Develop efficient and reusable code that drives complex web applications. - Maintain a deep understanding of Angular + Laravel to optimize application capabilities. Ideal Skills & Experience: - Advanced proficiency in Angular + Laravel development. - Proven record of building highly interactive web applications. - Understanding of user roles for a web app is preferable. - Skilled in troubleshooting and improving existing and in-developm...

...be able to guide tourists, suggest experiences and provide mentorship on tourism. IDEAL SKILLS: - Experienced in mobile application development - Expertise in developing tourism-related apps would be an advantage - Familiarity with UX/UI design targeting both young and middle-aged individuals - Knowledge of global trends in tourism and mentorship. Request for Proposal (RFP) for Tour Guide Platform Introduction: We are seeking proposals for the development of a mobile application for iOS and Android platforms for a tour guide platform. The platform should offer services similar to the tourism packages available on Airbnb. The application should support both Arabic and English languages, catering to three types of us...

I'm seeking a skilled mechatronics and electronics specialist to help create a custom animatronic robot(inner parts only ) the model already exist . The aim is to create a unique cartoon character that can entertain and engage with individuals. Key Requirements: - The robot should have a speaking feature, and be able to rotate its jet part. - Speaking: While I didn't specify the exact method for the voice feature, it's open for creative ideas. - Jet Movement: The rotating jet part should be controlled by an Arduino and motor. It should move smoothly and in a controlled manner. - Limit Mouth and Eye Mechanism: The robot should have a limit mouth mechanism and limit eye. It's important these parts move in a...

Build a simple 3-screen website Admin able to add Users Users Login and enter Trading Partner Information or Search the Existing Trading Partners Users can download the Trading Partners to SpreadSheet 4 Tables Ability to search and download I am open to using any technology that would improve the GUI and the ability to download the partner Information. Able to take any hosting site like Godaddy, HostGator, or any other site. Need it ASAP. Will be able to test and provide feedback very quickly PLEASE DON'T JUST BID WITHOUT READING - ASK YOUR QUESTIONS.

...personally with their findings to ask for rewards!! I'm seeking an artist who can find ?REALISTIC face photos from social media using the photo search engines below to get near exact similarity to my provided photo. The primary focus is on the facial structure. To nail the job, you will: TASK: - Utilize my provided material as the primary reference (Each of the face in this folders, I want to find very similar realistic face from social media: ) - Be permitted to source from additional references, provided they are from the specified sources I will list out - Need to have a keen eye for detail especially in identifying and replicating facial structures The ideal candidate would have keen eyes utilize online resources for art referen...

I'm looking for an expert who can customize the export function in my osTicket setup. The goal is to be able to export any field of my choice from the software, with the ability to select specific fields as needed. Key requirements: - Enable export of all fields from osTicket - Implement a feature to check and select specific fields for export - Ensure a seamless operation of the export function without errors Feel free to ask me any further questions on this project.

I'm looking for a logo designer to create a minimalist logo that will be primarily used online. Key Requirements: - The logo should be in minimalist style, with a focus on simplicity and clean design. - Familiarity with online logo use is a plus. - I do have specific colors in mind for the logo, which I will discuss with the selected designer. Ideal Freelancer: - Proven experience in creating minimalist logos. - Strong understanding of online logo usage best practices. - Ability to understand and deliver on specific color preferences. - Good communication skills to discuss and incorporate color choices. Please share your portfolio of similar work and let me know if you have any questions.

I'm seek...professional with a Bachelor's degree in Medicine to filter out specific topics and diseases from my multiple-choice question (MCQ) resources. What I need: • Identify MCQs related to certain diseases and conditions. • Compile the questions into an organized PDF file. • The PDF should be sorted based on the topics mentioned. The task requires a careful understanding of the subject matter, so relevant experience in these medical fields is a must. Proficiency in PDF creation and organization is also an added advantage. This project allows you to use your medical knowledge outside of a traditional setting, making it ideal for those interested in expanding their freelance portfolio. Put that medical degree to use in a ...

...application, specifically with a focus on reporting and analytics. The specific Task - Requirements Document will be provided. Project will be developed by Phases(milestones), total 12. Selected team will be having opprtunity to work for long term! Skills and Experience: - Extensive experience in reporting and analytics!!!*** - Extensive experience in Laravel development - Proficiency in Laravel customization and optimization - Strong understanding of Gitlab - version control !* - Strong understanding of web development principles and best practices - Ability to work on a large-scale project and deliver high-quality results - Excellent problem-solving skills and attention to detail - Database Design & Management: The ability t...

...application, specifically with a focus on reporting and analytics. The specific Task - Requirements Document will be provided. Project will be developed by Phases(milestones), total 12. Selected team will be having opprtunity to work for long term! Skills and Experience: - Extensive experience in reporting and analytics!!!*** - Extensive experience in Laravel development - Proficiency in Laravel customization and optimization - Strong understanding of Gitlab - version control !* - Strong understanding of web development principles and best practices - Ability to work on a large-scale project and deliver high-quality results - Excellent problem-solving skills and attention to detail - Database Design & Management: The ability t...

I'm looking for a Unity 3D game developer to create a realistic game with scene-based interactions. Key Requirements: - Design and implement interactions: The game should involve object, character, and environmental interactions. These interactions should be smooth and engaging. - Realistic Theme: The game should be set in a realistic world. This requires a good sense of realism in graphics, physics and overall game mechanics. Ideal Skills and Experience: - Proficient in Unity: The ideal candidate should have extensive experience in Unity 3D game development. - Game Design: A strong background in game design is crucial to bring the interactions to life. - Graphics and Animations: Good knowledge of creating realistic graphics ...

I'm in need of a tech-savvy individual who is skilled in setting up home sound systems. I currently o...tech-savvy individual who is skilled in setting up home sound systems. I currently own a Denon receiver and am looking to connect it to a few different devices. Ideal Skills and Experience: - Proficient in setting up home sound systems - Experience with connecting audio devices to receivers - Excellent knowledge of adapting technology - Knowledgeable about iOS devices, Roku, and iPods The job should not take more than an hour and a half. I am located in the Kendall area, so someone in this vicinity would be highly preferred. Please note that I have the necessary cables for the connections, and I'm not looking to purchase any addit...

Looking for someone who has expertise in converting websites from Relume to Wordpress. For now all the blocks are empty, we might ask to fill in the box with the text we need. It's a Main landing page + about 9-10 sub pages currently. Beneficial if you understand SEO and can add that as well during the conversion. Please provide examples of previous similar projects you've completed. Your bid should include a timeline for completion and any suggestions for improving the current site in the migration process.

FIRST – YOU MUST ACKNOWLEDGE THAT THIS WORK IS FOR AN ADULT GAY WEBSITE. If you don’t’, your bid will be deleted. The website is GayTies.com. The job: We have a bookstore (but we do not sell these books- so there is no shopping cart or payment gateway involved). So this is an easy project. Books are given to certain members who pay a membership. Paid members get a free book once a month. This is to encourage them to be and stay a paid member. We have 4 levels of members involved here, each level of member entering the bookstore, gets a different benefit. I will describe this in more detail later. 1. When a Gold Member enters the bookstore they have unlimited access to download all books all the time. All download links work. 2. If (regular)...

...looking for a professional with a strong background in SPSS to guide me through several analyses via zoom while I am doing it on SPSS. The analyses I think I will need are Descriptive statistics, Frequencies, Regression analysis, and ANOVA but I would need the person I work with to confirm this. I am working with both Numeric and Categorical data. Therefore, I need help in navigating these areas and interpreting the results. To perform to my expectations, you need to have: - Proven experience in running and interpreting SPSS analyses - A solid understanding of both numeric and categorical data analyses - Availability to work with urgency as I am looking to get this project completed ASAP. Don't hesitate to ask about any deta...

...characteristics of the brushes (and obviously it is not possible to use all the brushes in a single drawing so use the ones you want, choose at least 3 with main characteristics), accompanied by an exemplary stroke demonstrating how they can be used to achieve unique results. We recommend keeping colors vibrant but not too light, and filling each workspace completely to avoid white space. As you create your designs, I also ask you to record your work to create a video that demonstrates the uniqueness of the main brushes of your choice and highlights important details of the brushes. During registration you will have to focus on some strengths of the brushes and their particularities such as shades or various particular strokes. The designs must be uniq...

...a PowerPoint presentation for a seminar that focuses on making teaching fun and engaging for both elementary and high school English second language teachers. The presentation should cover the following areas and techniques: - Interactive teaching methods: This should include practical examples and case studies of how these methods have been effectively implemented in real classrooms. - Creating engaging activities: The presentation should provide teachers with a variety of strategies and ideas on how to create stimulating and enjoyable activities for their students. - Fun in ESL classes: A section on making English as a Second Language classes entertaining and effective is particularly important. The slides should ...

...identify and engage potential clients interested in our customized software solutions. You will be the face of our company, representing our expertise and commitment to excellence in every interaction. Your role will involve: Responsibilities: Understand their Needs: Conduct in-depth consultations with clients to fully understand their requirements, objectives, and pain points. Ask probing questions to uncover underlying needs and preferences, ensuring our solutions align closely with their goals. Act as a trusted advisor, providing expert guidance and recommendations based on a thorough understanding of the client's business environment and industry trends. Manage their Expectations: Set clear and realistic expectat...

I'm looking for a skilled individual to build a pneumatic can emptying and crushing machine. This machine is to work with 355ml (12oz) and 473ml (16oz) aluminum cans, at a rate of 25-50 cans per minute. - Feeding System: I need a semi-automated system. The machine should have a manual loading mechanism for filled cans, which will then be automatically emptied, drained and crushed. Splashing and foaming must be contained within the machine. The crushed cans should drop into a bin. - I have a specific concept in mind using four pneumatic actuators, some sensors and an Arduino based controller however implementation is open to improvements so long as requirements are met. - The basic concept could potentially become a commercial prod...

* We need a logo for our "car neck rest pillow" brand "Yangtz" which is a car accessories products brand which we are launch to e-com store. * Slogan : A comfortable choice * I have attached a sample logo for your reference. * Need source file with all the fonts & elements. * If you have any questions please dm me. Thank you

I'm looking for an SEO Expert with proven experience in optimizing website content to achieve higher search engine rankings. This project is all about structured snippets, with a focus on organic search results and featured snippets. Key Project Goals: - Increase website traffic - Improve search engine rankings - Boost online sales Key Requirements: - Extensive experience in SEO - Proven track record in structured snippets optimization - Ability to create and incorporate various types of content into snippets including product information, FAQ answers, customer reviews, and entire company information. Your bid should highlight your experience in these areas of SEO, as well as any previous projects that are similar to this one. The ideal candidat...

...calculate the hourly rate and the time needed to complete different task documents, on an agreed fixed price. The best offers with the right experience will have the opportunity to work with us on a long-term basis. Also, Good prospects for the right developers, based on the performances evaluated over a period of time, once you established your skills. Need to provide the changed code details and sql queries if any at the end of each sub-task, with the changed code line numbers. Unlimited Revisions are needed. Any bugs created due to your own developments are to be fixed on free of Charge. Recruitment is for a long-term big project as such, all the developers are subject to practical skill test for which not paid. Please send your details...

...a reference for the redesign. Key points: - **Scope of Work**: The redesign encompasses all aspects of the website, so you'll need to be comfortable working with WordPress themes and plugins to recreate and integrate the new design. - **Design Style**: The Figma plans are to be followed closely, so you need to be able to implement the design precisely. - **Timeline**: I need this project completed quickly, so I'm looking for someone who can start immediately and complete the work in a timely manner. Ideal skills and experience: - **WordPress**: Strong experience with WordPress design and development is a must. - **Design Sensibility**: Ability to translate a Figma design into a functional website design is crucial. - **E...

WARNING!! [I WILL DESIGN UP TO 5 SIMPLE LOW-POLY 3D MODELS (10.000 ve...SIMPLE LOW-POLY 3D MODELS (10.000 verts) BUT THE MAX IS 5000 VERTS, IF YOU NEED FOR EXAMPLE 2 OBJECTS AND THEY'RE UP TO 10.000 I can not Continue! ] altough if there are like 10,500... I could let it slide Hi, I am M, and I will design and model your item after a sketch, image, etc. I work mainly with low-poly figures and In the past I have done: roblox accessories, game stuff, real life objects into 3D models (and also I can do simply realistic stuff but that is for another topic! [see my other posts]) Please don't judge the book by its cover! ↘ DOWN BELOW AREN'T ALL OF MY PROJECTS, MOST OF THEM AREN'T IN THE .PNG FORMAT, BUT IN THE .BLEND OR IN T...

I'm looking for a proficient writer who can help me with a Finance case study. The case study is centered around the Bond Market, and delves into various aspects of Finance and Capital Markets with 9 questions to be answered. Key Aspects: - The case study is focused on the Bond Market and its relationship with other financial assets. - It aims to address a particular question or problem regarding Bond Market dynamics, possibly related to evaluating investment opportunities, analyzing stock market trends, or managing portfolio risks. Ideal Skills and Experience: - Strong understanding of Finance and Capital Markets - Proficiency in academic writing and case study analysis. - Experience in problem-solving within the context of fi...

...website shows 1 boat (a Cranchi Zaffiro 34) and people who visit the website: - view pictures and details of the boat - can look up a calendar to check availability and pricing. (there are 3 booking options: 3 hours, 4 hours, 8 hours). So the website stores all booking details in the calendar, which calendar can be shared in Outlook to the owner of the boat. - can book and pay for the boat online (coupled with Stripe account) - It should be possible to use promo codes - It should be possible for the owner to modify the website after it is published. - Upon booking the customer must enter his details and the names and ages of all guests. - Confirmation e-mail of the booking will be sent automatically. Before acceptance of your o...

I have a set of scanned images in PDF format that I need converted into an Excel sheet. The job is purely data entry - you are to copy the content from the scanned images into an Excel sheet. The freelancer should have excellent typing skills and attention to detail to ensure that no data is missed or entered incorrectly. Ideal Skills: - Proficiency in Excel - Fast and accurate typing skills - Detail-oriented - Experience with data entry, especially from scanned images - Excellent communication to ensure any questions about the data are clarified before entry

...DISQUALIFIED. I am looking for an expert in financial modeling to create a detailed and sophisticated financial model for a real estate project. The model should be able to assess and analyze the cash flow and investment potential of the property. The key requirements for the project are: - An advanced level of complexity: As the financial model will be utilized in the real estate sector, it should be able to handle complex calculations and scenarios. - Specialized industry knowledge: Experience in the real estate industry is a must, as the model should be tailored to its specific requirements. - Analysis of cash flow: The model should include a comprehensive cash flow analysis, considering various factors such as operational c...

...proposal and it should include: - upto 6 professionally designed slides - work history and progression within company - Current role, scope, and key achievements . - Critical success factors for growth of business The presentation is not a business model knowledge test rather it Is an opportunity for you to demonstrate your insights into the challenges and opportunities you face in your role and how you are addressing these issues, The panel members will be engaged by your presentation and will have specific questions on the presentation. The ideal freelancer will have extensive experience in the field of business presentations with a proven track record in persuasion. Expertise in graphic design and visually a...

I'm looking for a person with excellent English skills to take multiple ~10-30-minute tests. Before the tests, I'd like to have a quick 30-second call to review a couple of questions to make sure you are eligble to take the tests. Please let me know if you meet the above requirements and I'll send you a message to set up a call.

I'm looking for a person with excellent English skills to take multiple ~10-30-minute tests. Before the tests, I'd like to have a quick 30-second call to review a couple of questions to make sure you are eligble to take the tests. Please let me know if you meet the above requirements and I'll send you a message to set up a call.

I'm looking for a talented developer to convert a design I have in Figma into a single HTML page using the Bootstrap framework. The developer needs to ensure that the converted page is responsive and compatible across multiple device sizes. Here's what I expect: - Conversion of Figma design into HTML/CSS using Bootstrap to ensure responsiveness - Optimization for all devices - Clean and efficient code You should apply if you: - Have proven experience in HTML/CSS and working with Bootstrap - Can provide detailed project proposals - Have an eye for design details, ensuring accurate translation from design to code This project is ideal for a self-starter who can quickly grasp project requirements and deliver a flawless exec...

I’m searching for an experienced ammunition designer to optimize bullet shape and weight for 0.177 caliber airgun diabolo pellets. The focus of this project will be: 1. Bullet Shape and Weight Optimization: Streamline the design of the pellets to maximize their potential performance. 2. Accuracy Testing and Improvement: You'll conduct tests to refine the projectile’s accuracy for target and competition shooting. My goal is to have ammunition tailored for short range (0-50 yards) shooting. Proficiency in ammunition design, accuracy testing, and background in physics or engineering will be advantageous. Your expertise should lead us toward the optimal ammunition design, thereby improving my shooting per...

I'm in need of a solar photovoltaic system. Unfortunately, I didn't answer the questions about the system's purpose or required size. Nevertheless, I'm looking for experienced freelancers who can: - Provide samples of their past work, especially with solar photovoltaic systems. - Demonstrate significant experience in this field. - Suggest detailed and comprehensive project proposals. Please bid if you have the necessary skills and experience in solar photovoltaic systems.