I'm in need of professionally engineered plans for my existing pergola. The ultimate goal is to certify it for compliance with local council regulations. Unfortunately, I don't have any existing blueprints or architectural plan of the pergola. Ideal Skillset and Experience: - Expertise in creating accurate and detailed engineering plans - In-depth understanding of local council regulations regarding pergola constructions - Ability to work without existing plans or blueprints Your task will primarily involve creating a comprehensive plan to establish its certification for compliance. Please ensure that your design adheres strictly to local council regulations. Previous experience with similar projects required and California license.
... employing best practices in continuous integration and deployment to maintain system integrity and performance. Documentation and Support - Produce detailed documentation and user guides for the system architecture, API interfaces, and operational procedures. Provide ongoing support and troubleshooting to ensure system stability and user satisfaction. Essential Skills and Qualifications: - Expertise in using Visual Studio for software development, including .NET and PHP programming. - Proficiency in Azure DevOps for project lifecycle management, including CI/CD pipelines and agile project management. - Experience with Microsoft Azure, especially Azure Service Bus and Azure Functions. - Strong knowledge of database management with MySQL and SQL. - Ability i...
...engineer with expertise in both frontend and backend development, specifically using Java, for a greenfield project to build a new application. Key Responsibilities: - Develop the frontend of the application, ensuring high performance and responsiveness to requests - Design, implement, and maintain the backend of the application, in compliance with the project requirements - Work collaboratively with our team to integrate user-facing elements with server-side logic - Participate in the entire application lifecycle, with an emphasis on coding and debugging Ideal candidate would: - Have proven experience in software development, particularly in building applications from scratch - Be proficient in Java, with a strong understanding of its ecosys...
...experience in automotive electronics to create a medium-sized, bendable PCB for an upcoming project. Key Project Details: - Application: The intended use of the PCB is specifically for automotive applications. - PCB Flexibility: The design should be bendable, but not necessarily foldable or twistable. - Size: The overall dimensions of the PCB fall within the medium range, roughly 10-20 cm. Skills and Experience Required: - Previous experience with automotive electronics and PCB design. - Understanding of the unique challenges and requirements of designing for a vehicle environment. - Familiarity with creating bendable PCBs, using appropriate materials and techniques to ensure the desired flexibility without compromising the performance or durability. If you have...
...years old and live in Latin America or Eastern Europe. ✻ NO EXPERIENCE REQUIRED ✻ You do not need any experience whatsoever, but you must be clever and eager to learn. No. I am *not* being charitable; rather, I am being practical. ✻ PAYING YOU TO LEARN ✻ No. You aren't dreaming. I value intelligence and problem-solving ability over experience. I'd prefer to work with someone who is clever and learns quickly rather than someone experienced but is not very intelligent and/or does not solve problems scientifically. Would I hire an Isaac Newton or an Albert Einstein even if he had no programming experience? Of course I would. ✻ TESTS ✻ You must pass several difficult logic tests to work with me. The first logic test you complete for me will be an unpaid logic test. ...
I need a professional with expertise in assessing the structural integrity of steel towers. The main goal is to ascertain how well the tower is holding up and if it's safe for use. - Skills and Experience: - Proven experience assessing steel towers. - Understanding of load calculations and structural integrity. - Ability to provide clear, detailed reports on findings. Utilize an independent structural engineering resource registered in the State of Tennessee to conduct a comprehensive inspection of the water tower's surface to identify and report any structural defects or areas requiring repair and report such issues to ORNL representatives for concurrence and approval prior to initiating work on the tower.
I am in need of an industrial design expert specialised in electronics to assist me with my rowing performance tracking device. The project is currently in the conceptual/idea phase. I need help with creating 3D models and renderings for the design. The ideal candidate will have prior experience in electronics industrial design and 3D modeling in particular. Ideal skills for this job include: - Industrial design expertise, particularly in electronics - Proficiency in 3D modeling and rendering - Strong communication skills, as collaboration is essential in this phase of the project I'm looking for a freelancer who can take my rowing performance device concept and bring it to life through detailed and reali...
I'm currently searching for an experienced AutoCAD Designer who can help craft detailed plans for a golf simulator. The main ...Area: You will be provided with specific width and height measurements to guide your design. 2. Integration of Electronic Components: We need plans for mounting and installing the electronics that make the simulation possible. 3. Flooring Material & Lighting Requirements: The design should incorporate the specified materials and suitable lighting for the swinging area. Experience in designing sports simulators or similar environments would be a huge plus. Please, show examples of your previous work in your proposal if available. Succinct and accurate drawing styles are appreciated. Thank you for your interest in my project - I...
I have an martingale EA that was design long time ago, but the developer lock it off when it was sent. I need to make some changes but i cant, so i need to do a back engineering or try to open it to make the changes.
I'm currently seeking a professional with extensive experience in structural engineering, especially older homes. My property is an 1890s house in Michigan requiring structure optimization for joist, rafter, and beam/collar tie to better withstand our moderate winters. Unknown to me is whether or not the house currently has issues. However, when I opened up to see the framing, I discovered both damaged or rotted wood, and what appears to be inadequate support or bracing. The ideal freelancer for this job should: - Be highly knowledgeable about structural engineering, especially for older constructions. - Have extensive experience with the assessment and treatment of damaged/rotten wood. - Be capable of designing and implementing robust structural support...
...enhancing radiation protection in a chiropractic facility specifically focusing on an x-ray machine. - The shielding design is expected to be proficient for radiation protection, positioning guidance, and overall shielding design. - Must have prior experience in working within a chiropractic or medical facility, focusing on radiation protection. - Must possess knowledge of industry standards concerning X-ray machines. - Previous experience in similar roles dealing with shielding design is a significant benefit. Ideal skills and qualifications include: - Engineering or design background, specifically in lead shielding layouts. - Experience in medical or health facilities. - Understanding of radiation safety measures, with an emphasis on X...
I'm in need of a professional photographer who excels in product photography. Our project centers around creating engaging photos of an Apple AirTag Holder for our product listing on eBay. The successful freelancer will masterfully capture different angles of the holder that include: - Front view - Back view - Side view An eye for detail, lighting, and aesthetics that accentuate the product features is a must-have skill. Previous experience with electronics product photography will be highly advantageous. Let's make our product stand out and attract potential buyers with high-quality photos.
I'm ...setback requirements. - The design should be in line with the provided CAD files for similar developed sites. - The primary focus is on space requirements for the new structure and feasibility of using the land for the intended use. - Turn around time is important. Prefer turn around time of 24 hours or less. Ideal Skills: - Proficiency in civil engineering and land development. - Prior experience with site plan layouts and CAD software. - Strong attention to detail and ability to incorporate specific design requirements. - Good communication skills for collaboration and sharing progress updates. If you're well-versed in these areas and can deliver a comprehensive, professional site plan layout, please reach out. Your expertise will b...
Job Description: We are seeking an experienced software developer to create code for a power electronics control system. The project involves using an Arduino DUE and the IMC101T T038 motor controller. The software should control and regulate both the grid side and machine side using Space Vector PWM (SVPWM). Communication between the Arduino and other components will be handled via serial communication. Additionally, the system should include a quadrant display using 4 LEDs to indicate whether it is operating in motor or generator mode. All datasheets and circuit diagrams will be provided. Key Responsibilities: Control and Regulation: Implement SVPWM on both grid and machine sides. Grid-side control: Adjustable power factor (cos(φ)), current, and power. Machine-side c...
I'm at the idea/concept stage of a new automated device and I'm seeking an experienced freelancer with strong prototyping skills to bring this concept to life. Key Requirements: - Experience: I need someone who's well-versed in electronics, industrial design, and robotics. Your portfolio should reflect past projects that demonstrate your ability to design and prototype automated devices. - Prototyping: The primary skill I'm looking for is your ability to translate concepts into physical prototypes. You should be proficient in using tools and materials to build and test prototypes efficiently. - Problem-Solving: A significant part of this project will involve troubleshooting and refining the prototype as we progress. Your problem-solving skills shou...
More details: What is the purpose of the electronic circuit you need designed and constructed? Product test per an engineering specification. What specific engineering specification do you need the product to be tested against? Response to small driver signal, 415mA base with +/-5mA, +/-10mA, +/-15mA, +/-30mA sinusoidal oscillations at 1Hz, 10 cycles per amplitude. How soon do you need your project completed? ASAP
I'm in need of a skilled email cloud engineer. The primary goal of this project is to reconfigure my domain email to ensure that: - It can send emails to a wide range of email platforms such as Gmail, Yahoo Mail, Outlook, AOL, and others. - The emails sent are treated as high-priority emails and arrive in the recipient's inbox. I attached some sending errors I received to enable you to know what you're dealing with Key Requirements: - Ability to configure the domain email to send to all popular email platforms. - Ensuring fast delivery to the inbox. - Limiting the email sending rate to less than 20 per day. Ideal Skills and Experience: - Proven experience in email cloud engineering. - Strong understanding of different email platforms' requ...
I'm in need of a skilled 3D designer who can take my concept and transform it into an interactive prototype of an electronic device. Key requirements include: - Knowledge in industrial design, particularly in electronics - Expertise in creating 3D prototypes - Ability to align with my vision and provide creative input for design improvement From the outset, I'm relying on the designer's technical and creative abilities as I'll be providing the basic concept without a detailed sketch. In addition to creating a detailed and realistic 3D model of the electronic device, I would love your inputs on functionality and aesthetics. If you're keen on bringing innovative products to life and possess the mentioned skills, I'...
...but rather in the plan's content. Due to the low word count, the business plan should include graphs and statistics to compensate. It should also include APA7-style referencing. The topic itself is not specified, and I would be flexible. However, I prefer it to be something related to engineering and within the Middle East region unless you have a good idea that I might consider. Ideal Skills: - MBA or Business Background: Proficiency in business planning and entrepreneurship, with an MBA or relevant academic background. - Market Research: Ability to conduct in-depth research to identify and analyze broad industry trends. - Critical Thinking: Strong critical thinking skills to provide a thorough and insightful analysis of entrepreneurship. Experien...
About Us: Digital Innovations is a cutting-edge technology company specializing in web and mobile apps and digital solutions. We are passionate about creating innovative mobile applications that provide exceptional user experiences. Our team is dedicated to pushing the boundaries of technology to deliver top-notch solutions to our clients. Job Description: We are seeking a talented and motivated Part-Time iOS Mobile App Swift Developer to join our team. In this role, you will work closely with our development team to design, develop, and maintain iOS applications using the Swift programming language. This position offers the flexibility of working part-time, making it ideal for candidates looking to balance work with other commitments. Key Responsibilities: Collaborate wit...
...play a pivotal role in our operations, responsible for managing client accounts and sourcing materials from various platforms and suppliers. The ideal candidate will be fluent in English and have strong Mandarin skills, as a significant portion of our supplier base is located in China. They will have a strong background in mechanical engineering, sourcing, negotiating contracts, and coordinating logistics. Strong communication skills will be essential to effectively communicate client needs to suppliers and manage the end-to-end procurement process. Qualifications: 1. Proven experience in sourcing, procurement, and account management, ideally within the consumer electronics, manufacturing, or construction industry. 2. Bachelor's deg...
I'm in need of a skilled freelancer to help me purchase a range of electronics components. Ideal Candidate: - Experience in purchasing electronics components. - Knowledge of common suppliers and market trends. - Good negotiation skills to secure the best deals. - Understanding of quality standards and counterfeit prevention. Additional Details: - The components needed are varied, including resistors, capacitors, diodes, and more. - My primary use for these components is in consumer electronics, so familiarity with this sector is a plus. - Please provide your past experiences in purchasing electronics components in your application.
We are in need of an experienced civil engineer to reinforce a 5-10 feet high block wall currently showing moderate wear and tear. The purpose of the engineering is to strengthen the wall, with potential for future slab works on top. Must-haves: - Proven experience in structural engineering, specifically related to block wall reinforcement. - Ability to assess wall condition and provide optimal reinforcement solutions. - Ability to manage project requirements according to safety regulations and standards. -Capability to work within potential further development plans. The ideal candidate will need to provide professional assessment and reinforcement design to ensure the wall's stability and potential for further enhancements.
...translating complex technical concepts into clear, concise writing? We're seeking a skilled freelancer to create informative papers on various aspects mentioned below The ideal candidate will possess the following qualifications: In-depth knowledge of leading HCI solutions: VMware vSAN, NSX, HCX, Azure Stack HCI, etc. Solid grasp of HCI architecture: Distributed storage, software-defined networking, and resource management. Experience deploying, configuring, and managing HCI clusters: Proven track record of hands-on experience. Cloud Platforms : Proficency in major cloud platform like Azure, AWS or GCP. Experience with cloud automation tools, and automating infrastructure provisioning. Containerization tools like Kubernetes or similar. Each paper should consis...
I'm in need of a versatile e-commerce website developer who can help me create a platform similar to alibaba.com. The website is intended to sell a variety of products including Electronics, Clothing, Home goods, and Websites. Key Requirements: - The website needs to enable the sale of ready-made products, with a specific focus on tailor-made website accounts. - I'm also seeking customization options for my products, specifically in terms of size dimensions, material choice, and 'Internet Browsing'. Skills and Experience: - Proven experience in developing multi-product e-commerce platforms. - Proficiency in creating platforms with dynamic product offerings and customizable options. - Strong understanding of consumer behavior and e-co...
I'm looking for an experienced design engineer who can assist me with designing single-phase generators in 10kW, 20kW, 30kW, and 40kW capacities for the Canadian market. This project involves a thorough review of the Cummins, Kohler, and Briggs and Stratton product offerings; seeing what makes them unique in their design and then coming up with our design. Key deliverables for this project include: - A detailed design proposal for a new brand of single-phase generator tailored for the residential market. - Recommendations for optimal capacity levels (10kW, 20kW, 30kW, and 40kW) based on market demand, competitor analysis, and technical feasibility. - A comprehensive comparative analysis of the existing Cummins, Kohler, and Briggs and Stratton products. - Auto Cad de...
I am seeking a proficient Revit and AUTOCAD user to create detailed structural plans. As a structural engineer, I have already completed all necessary calculations. Therefore, no additional computations are required for this project. The primary task will be to draw the plans according to my specifications. Please note that this project solely involves drafting; all engineering aspects have been addressed. The successful candidate should have a strong understanding of Revit and be able to produce detailed, accurate plans based on the information provided. Looking forward to working with you. Thank you.
I seek a profess...fall between 60lbs and 80lbs, ensuring it can handle significant weight and stress while remaining efficient in reeling in large catches. Design: - The aesthetic should be sleek and modern. Consider ergonomics, intuitive function placement, and clean design lines. Ideal Candidate: - The freelancer should have experience in designing and manufacturing fishing gear. Knowledge in material science, particularly with carbon fiber, is a must. A deep understanding of modern design in the context of fishing tools is necessary. This project is more than just creating an average fishing reel, it's about creating a gear that's both functional and stylish for the modern fisherman. Engineering and design principles need to int...
As a seller of engine parts, navigation instruments, safety equipment, and marine electronics, I'm looking for a freelancer who can identify and connect me with ship and vessel owners. The main aim is to sell these items as replacement parts, ensuring a continued market presence and potential business growth. Key Requirements: - Proficiency in B2B sales and market research within the marine industry. - Strong understanding of various marine equipment categories. - Ability to effectively network and connect with ship and vessel owners. - Experience in selling marine products is a plus. Your role will be to not only find these potential customers but also to establish a rapport with them. This project will require a proactive approach, being able to identify and ...
I am in need of a professional who can analyze a 4 hour and 40 minute long voice recording for me. This recording contains a mixture of speech and fake snoring. It is critical the voice amidst the snoring is represented clearly, and also identify the female voice in the recording. Key requirements include: - Expertise in audio engineering or related fields - Proven experience in voice and noise analysis - Detail-oriented and can accurately identify and note the female voice in the recording - Ability to deliver completely clear sound quality, removing the noise of the fake snoring without affecting the voice quality - The final output should allow me to clearly understand what is being said throughout the recording An ideal candidate should h...
I'm in need of a skilled freelancer who can assist me in collecting contact information for recruitment companies specifically operating in Saudi Arabia. Those companies are NOT necessarily based inside Saudi Arabia, could be based anywhere in the world, but they recruit for companies/entities inside Saudi Arabia. Please note that I do not need recruitment people in certain sectors such as Oil, Gas, IT, Engineering, Aviation, Procurement, Transportation, Architecture and Finance. Everyone else is yes needed. Key Requirement: You will need to find the contact name, position, email and LinkedIn account for each and every recruitment/HR/Headhunting person within each company. This could be anywhere between 10 to 30 people per company. - The in...
I need a skilled C# Winform .NET developer to protect my application using obfuscation techniques. The goal is to prevent reverse engineering and ensure the highest level of security. Key Requirements: - Implement Basic name mangling, Control flow obfuscation, and String encryption for the application. Ideal Skills and Experience: - Strong proficiency in C# and .NET framework - Prior experience with implementing obfuscation techniques - Knowledge of application security best practices This project is a great opportunity for a developer with a keen interest in application protection.
Require a draft sketch of the attached - Drawing Emphasis: The focus of measurements - Skillset: Candidates with proficiency in mechanical engineering and a specialty in structural components are encouraged to apply. Prior experience with motor base designs will be a significant advantage. Your task will be to create a functional and practical design, and your insightful input will be of great value.
I'm in need of professionally engineered plans for my existing pergola. The ultimate goal is to certify it for compliance with local council regulations. Unfortunately, I don't have any existing blueprints or architectural plan of the pergola. Ideal Skillset and Experience: - Expertise in creating accurate and detailed engineering plans - In-depth understanding of local council regulations regarding pergola constructions - Ability to work without existing plans or blueprints Your task will primarily involve creating a comprehensive plan to establish its certification for compliance. Please ensure that your design adheres strictly to local council regulations. Previous experience with similar projects required and California license.
I am in need of a professional who can analyze a 4 hour and 40 minute long voice recording for me. This recording contains a mixture of speech and fake snoring. It is critical the voice amidst the snoring is represented clearly, and also identify the female voice in the recording. Key requirements include: - Expertise in audio engineering or related fields - Proven experience in voice and noise analysis - Detail-oriented and can accurately identify and note the female voice in the recording - Ability to deliver completely clear sound quality, removing the noise of the fake snoring without affecting the voice quality - The final output should allow me to clearly understand what is being said throughout the recording An ideal candidate should h...
I am in need of a simple drafting job, a retaining wall which is small in size, less than 1 meter. The idea of the project is to showcase the detail of the retaining wall, without requiring complex engineering. - It should be done in 2D AutoCAD Drafting format, to accurately represent the tiny nuances of the sketch I initially have. - No further engineering or measurements needed, so freelancers with experience in simple 2D drafting without the necessity for intricate detailing would be ideal. - Basic knowledge of retaining walls will be sufficient to execute this job. This is a simple, first-time job perfect for those interested in such drafting tasks.
I am seeking a proficient blockchain engineer on TON blockchain (The Open Network) to impleme...storage provides convenience and security for project participants. Problem-solving Addressing one of the significant challenges with cryptocurrencies – purchasing real items with crypto. Buy and send immediately within Telegram or on our website. ---------- The ideal candidate will have in-depth knowledge and rigorous hands-on experience in implementing smart contracts with high-security measures, including comprehensive audit and vulnerability testing. Therefore, applicants with a strong background in security would be given preference. This is a critical project, requiring the highest level of security considerations. A strong portfolio demonstrating similar pro...
I am in need of a coder well-versed in Lua and experienced with IceSL. The task involves: - Developing a Lua script that can generate a 3D model. - The 3D model in question is a cycloidal gear and pinion element, generally employed In clock gears. Skills and Experience Required: Mechanical Engineer - Proficient in Lua scripting language. - Experience with IceSL for 3D modelling. This task requires an understanding of code as well as a foundational knowledge of mechanical engineering principles. If you possess these skills and experience, I'd love to hear from you. Please include any relevant work in your proposal.
I am on a quest for an exceptional individual who can collaborate with me in writing a presentation about chaos engineering and incident management specifically for a .Net driven distributed monolith. Key points include: - The purpose of the presentation is to educate stakeholders and instigate a beneficial scenario discussion, leading us on a path to implementation. - The target audience has an intermediate understanding of chaos engineering and incident management, hence the presentation should be calibrated to this level. - The presentation will heavily emphasize on the practical aspects of chaos engineering and incident management. Focal themes would be implementing chaos engineering, simulating incidents, and strategies for mitigation. To ensure a...
Handwritten/Manual Structural Engineering Calculations for concrete water tank and steel warehouse.
We are seeking a highly skilled and creative logo designer with a strong portfolio in brand identity development, ideally with experience in 4A (AAAA) advertising. Our brand focuses on cutting-edge consumer electronics, and we require a logo that reflects our innovative spirit and market positioning. Key Requirements: Brand Identity: Design a logo that serves as the cornerstone of our brand’s identity. The logo must be distinct, memorable, and clearly differentiated from competitors. Versatility: Ensure the logo is adaptable for various applications, including physical products,digital platforms, print materials, business cards, and other stationery. Alignment with Vision: The logo should resonate with our brand’s vision and slogan, encapsulating our commi...
I'm looking for an expert in PCB design and fabrication to create a custom controller for my shop. The primary objective of this task is automating some key processes, with a special emphasis on security. Below are the specifications for the PCB controller: • Automation of the security system: This project requires designing a custom PCB controller which will integrate with various elements of the security system for automation. • Incorporation of alarm systems: The controller should easily synchronize with alarm systems, enabling automated responses in case of triggered alerts. • Seamless integration with access control systems: I wish to automate the access system in my shop, hence the PCB controller must be compatible with modern digital acce...
Engineering Background Content Creator Required For Tech Related Topics
I am seeking an expert in marine engineering or naval architecture to perform an in-depth buoyancy calculation for my medium-sized (20-30 feet) fishing charter boat. The boat is designed primarily for fishing charter purposes and needs to support a medium load capacity (4-8 people). Your task will include: - Calculation and analysis of the boat's buoyancy with medium load - Providing a detailed report on the boat's load capacity, stability, and safety Applicants should have significant experience in boat design and naval architecture, with a strong understanding of buoyancy principles. Your background knowledge, talents, and precise calculations will be crucial in ensuring that our fishing boat is safe, stable, and ready for an exciting f...
I'm looking for an expert machine software engineer who can proficiently integrate software with hardware. Key tasks: - The successful freelancer will be required to integrate software with an industrial control system and Programmable Logic Controllers (PLCs). Ideal skills and experience: - The ideal candidate will have considerable experience in machine software engineering, with a focus on software and hardware integration. - In-depth understanding and hands-on experience with industrial control systems and PLCs are crucial for this task. - Experience with programmable logic controllers (PLC) is particularly critical. We are looking to build a load bank with Canbus or another form of communication protocol that can be controlled from a single location. Sof...
I'm currently in the design phase of an electronics project and require an electrical engineer with a specialization in electronics to assist me. Key Tasks: - Design Assistance: I need help with designing various electronic components of the project. This requires high-level knowledge of electronics, particularly on how to integrate circuits and make them work seamlessly. Ideal Skills and Experiences: - Expertise in Electronics Engineering: A deep knowledge of electronics is essential for this role. You should have experience working on similar projects and be able to demonstrate a strong understanding of electronic design principles. - Circuit Design Skills: Experience in designing complex circuits is a plus. Yo...
I'm in need of an expert in digital electronics to assist in a project of mine. The specifics of the project, including whether it involves circuit design, PCB layout, or microcontroller programming, we can discuss in further detail. Key requirements: - Proficient with digital electronics and related technologies - Experience with either circuit design, PCB layout, or microcontroller programming - Ability to collaborate effectively and share project files as needed Your role will be instrumental in the success of this project, and I am looking for someone with a proven track record in this field. Let's connect and discuss the project further.
I need an expert in space mission plotting who can create trajectory plots pertaining to a hypothetical space mission. The project revolves around producing captivating and accurate figures that provide details on the mission’s complete orbital trajectory. Key Project Requirements: - Develop trajectory plots for the mission, highlighting details of our journey between planetoids. - A knack for making figures that optimize understanding for viewers, even with an untrained eye to space exploration details like the figure attached. Ideal skills and experience: - A background in Aerospace Engineering or related fields. - Proven experience with trajectory plotting. - Proficient using relevant software to develop accurate and comprehensible figures. - Knowledge and...
I have a 3D model of a consumer electronics enclosure in .STL format. I need a talented designer who can optimize the model with a focus on Design for Manufacturability (DFM). The primary goal is to ensure that the enclosure is not only visually appealing but also structurally sound and manufacturable for Injection Moulding. Key aspects I'm looking to address in the optimization process include: - Material Selection: Recommending the most suitable material for the enclosure considering its end-use and manufacturing process. - Wall Thickness Optimization: Making sure that the walls of the enclosure are neither too thin to weaken its structure nor too thick to waste material. - Assembly Considerations: Ensuring that the design is conducive to easy and cost-effecti...
