Powering Ahead: Farewell Program of Session 2019-20 – Embracing New Beginnings for Electrical Technology Students

We cherish with pleasure the memorable Farewell Program held by the Electrical Technology Department for 7th Semester students in Session 2019-20. This event was an important milestone in their educational path, allowing them to wave goodbye to their alma institution and other classmates while making precious memories and strengthening their relationships for the next chapter of their life. In addition, we held an orientation event for first semester students, encouraging them toward a successful academic path.

The Farewell Program was graced by the esteemed presence of our Honorable Principal, Mr. K M Hasan and the Department Head, Mr. Md. Shafikul Islam. Their presence added prestige and significance to the event. Additionally, Students from other semesters and departmental professors also participated in the event, encouraging solidarity and shared experiences.

The Farewell Program, with its main aim of providing a remarkable and significant experience, served as a platform for departing students saying goodbye to their alma mater and fellow classmates, generating lasting memories and deepening the ties formed during their time at the institution of learning. Furthermore, it aspired to encourage and motivate students as they moved into the professional world, passing on the principles and expertise they had learned during their time there.

Simultaneously, we organized an orientation session for the 1st semester students, equipping them with essential information, guidance, and support for their academic journey. This session laid a strong foundation for their future success, ensuring a smooth transition into the new educational environment.

The Farewell Program took place on June 20, 2023, marking a significant milestone in the lives of our departing students. It was a day filled with mixed emotions as they bid farewell to their beloved institution and prepared to embark on new adventures.

As we reflect on the Farewell Program, we celebrate the lasting impact of the students’ educational journey at our institution. We have full confidence that they have gained valuable knowledge, skills, and experiences that will guide them in their future endeavors. We extend heartfelt congratulations to all the students and express our gratitude to the honorable guests and participants who made the event truly special.

We wish the departing students immense success and fulfillment in their future endeavors. May they carry the values and knowledge gained from their time at our institution and make a positive difference in the professional world.


Introducing the Architecture Club and Interior Project Corner: Fostering Creativity and Collaboration

Exciting news abounds from the Architecture Department at Daffodil Polytechnic Institute! Recently, a group of exceptionally talented students took the initiative to revitalize Academic Building 2, transforming it into a dynamic and inspiring space known as “Interior Project Corner.” This endeavor serves as a thriving hub for innovation and creativity to flourish.

The students divided themselves into five groups driven by their passion for architecture, carefully selected specific areas within Academic Building 2 to showcase their ingenious ideas and artistic flair. The primary objective was to cultivate a conducive learning environment that encourages collaboration, enabling students to exchange ideas, engage in project work, and gain valuable practical experience.

Building upon the resounding success of the Interior Project Corner, the Architecture Department takes great pride in inaugurating the Architecture Club. This esteemed club seeks to nurture and cultivate the talents of aspiring architects by providing a range of enriching activities and diverse opportunities.

We are delighted to share that the inaugural program for the Architecture Club was held on June 19, 2023, and was graced by esteemed guests: Dr. Kishore Kumar, Director General of Techno India University, and Mr. K M Hasan, Principal of Daffodil Polytechnic. Their presence added immense value to the event, serving as a profound inspiration to the students and marking the beginning of an exciting journey.

As the Architecture Department continues to pave the way for excellence in architectural education, the Interior Project Corner and the newly established Architecture Club are significant milestones. These initiatives aim to empower students, foster collaboration, and provide a platform for creativity to flourish.

Stay tuned for more updates on upcoming events, workshops, and competitions organized by the Architecture Club. We look forward to witnessing the growth and accomplishments of our talented students as they embark on this architectural journey.


র‍্যাপিড হার্ডেনিং সিমেন্ট

র‍্যাপিড হার্ডেনিং সিমেন্ট (RHC) কে উচ্চ প্রাথমিক শক্তি সিমেন্টও বলা হয়। দ্রুত শক্ত হয়ে যাওয়া সিমেন্ট এবং সাধারণ পোর্টল্যান্ড সিমেন্টের মধ্যে প্রাথমিক পার্থক্য হল চুনের পরিমাণ। চুনের বড় অনুপাত হল দ্রুত শক্ত হয়ে যাওয়া সিমেন্টের স্বতন্ত্র বৈশিষ্ট্য।


দ্রুত শক্ত হয়ে যাওয়া সিমেন্ট অধিক নিয়ন্ত্রিত অবস্থায় ওপিসি-র তুলনায় উচ্চ তাপমাত্রায় পোড়ানো হয়


দ্রুত শক্ত হওয়া সিমেন্টের 3 দিনের শক্তি ওপিসি-এর 7 দিনের শক্তির সমতুল্য যখন উভয় সিমেন্টের জন্য জল-সিমেন্টের অনুপাত একই ধরা হয়। শক্তি বৃদ্ধির হার এই কারণে যে ট্রাই-ক্যালসিয়াম সিলিকেট (C3S) এর উচ্চ অনুপাত RHC-তে সিমেন্ট ক্লিঙ্কারের সূক্ষ্মভাবে নাকালের সাথে রয়েছে। যদিও, RHC যে হারে শক্তি অর্জন করে সেই হারে OPC যে হারে শক্তি অর্জন করে তার চেয়ে বেশি, চূড়ান্ত শক্তি RHC এর জন্য একটু বেশি।


প্রাথমিক সেটিং সময়: 30 মিনিট

চূড়ান্ত সেটিং সময়: 600 মিনিট

নির্দিষ্ট পৃষ্ঠটি 3250 cm2/gm এর চেয়ে বেশি।

RHC OPC থেকে হালকা।


দ্রুত শক্ত হওয়া সিমেন্ট বেশিরভাগ রাস্তা নির্মাণে ব্যবহৃত হয় যেখানে দীর্ঘ সময়ের জন্য যানবাহন থামানো যায় না। এছাড়াও, RHC ব্যবহার করা হয় যেখানে ফর্মওয়ার্ক পুনঃব্যবহারের জন্য তাড়াতাড়ি সরানো প্রয়োজন। এটি সেই পরিস্থিতিতেও ব্যবহার করা হয় যেখানে পরবর্তী নির্মাণের জন্য পর্যাপ্ত শক্তি যত তাড়াতাড়ি সম্ভব সম্ভব। এগুলি প্রিকাস্ট স্ল্যাব, পোস্ট, বৈদ্যুতিক খুঁটি তৈরিতেও ব্যবহৃত হয়।


দ্রুত শক্ত হয়ে যাওয়া সিমেন্টের নিরাময় সময় কম হওয়ায় এটি লাভজনক বলে প্রমাণিত হয়।

আরএইচসি-র ক্ষেত্রে সিমেন্টের কিউরিং এবং শক্ত হওয়ার সময় সংকোচন কম হয়।

RHC সালফার প্রতিরোধে ভাল।

তুলনামূলক কম সময়ে শক্তি অর্জন করায় নির্মাণের ভালো গতি অর্জন করা যায়।


এটি সাধারণ পোর্টল্যান্ড সিমেন্টের চেয়ে ব্যয়বহুল।

অতিরিক্ত দ্রুত হার্ডেনিং সিমেন্ট

ম্যানুফ্যাকচারিং: ইন্টারগ্রাইন্ডিং ক্যালসিয়াম ক্লোরাইড (CaCl2) সাথে RHC, অতিরিক্ত RHC পাওয়া যেতে পারে। উত্পাদন প্রক্রিয়ার সময় ক্যালসিয়াম ক্লোরাইডের শতাংশ 3% এর বেশি হওয়া উচিত নয়।

শক্তি: অতিরিক্ত RHC এর শক্তি 1-2 দিনে RHC এর তুলনায় প্রায় 25% বেশি যেখানে শক্তি 7 দিন পরে মাত্র 10-20% অতিক্রম করে।

ব্যবহার: ঠান্ডা আবহাওয়ার কংক্রিটিংয়ের জন্য অতিরিক্ত দ্রুত শক্ত হওয়া সিমেন্ট ব্যবহার করা হয়।

জয়ন্ত চন্দ্র


সিভিল টেকনোলজি

ড্যাফোডিল পলিটেকনিক ইন্সটিটিউট


Boost Your Website’s Visibility: Essential SEO Strategies for 2023

In today’s digital landscape, search engine optimization (SEO) is crucial for the success of any website. With ever-evolving algorithms and increasing competition, staying on top of the latest SEO strategies is essential to boost your website’s visibility and drive organic traffic. In this blog post, we will explore the most effective SEO techniques and provide you with practical tips to optimize your website for 2023.

  • Conduct Thorough Keyword Research: Keywords are the foundation of SEO. Start by identifying relevant keywords and key phrases that your target audience is likely to use when searching for products or services similar to yours. Utilize keyword research tools to determine search volume, competition, and long-tail keywords to target.
  • Optimize On-Page Elements: Optimize your website’s on-page elements to ensure search engines understand your content and its relevance. Focus on optimizing page titles, meta descriptions, headings (H1, H2, etc.), and URL structures. Incorporate target keywords naturally into your content while maintaining readability. 
  • Create High-Quality and Engaging Content: Publishing high-quality, informative, and engaging content is crucial for SEO success. Write comprehensive articles, blog posts, and guides that provide value to your audience. Include relevant keywords naturally in your content, but avoid keyword stuffing. Incorporate multimedia elements such as images, videos, and infographics to enhance user experience. 
  • Optimize for Mobile Devices: Mobile optimization is no longer optional; it’s a necessity. With the increasing use of smartphones and tablets, search engines prioritize mobile-friendly websites. Ensure your website is responsive and provides a seamless browsing experience across different devices. Optimize page loading speed, use responsive design, and consider implementing Accelerated Mobile Pages (AMP) for faster loading times.
  • Focus on User Experience (UX): Search engines value user experience, so make sure your website is user-friendly and easy to navigate. Improve site architecture, use clear and intuitive navigation menus, and optimize internal linking to enhance user experience. Provide relevant and easily accessible information to keep visitors engaged and encourage them to explore further.
  • Build High-Quality Backlinks: Backlinks remain an essential factor for SEO success. Focus on acquiring high-quality backlinks from reputable websites in your industry. Develop a link building strategy that includes guest posting, influencer outreach, and partnerships. Create compelling and shareable content that naturally attracts backlinks from authoritative sources.
  • Leverage Social Media and Online Presence: Social media signals play a role in SEO rankings, so establish a strong presence on relevant platforms. Share your content, engage with your audience, and encourage social sharing. Optimize your social media profiles and ensure consistent branding across different channels. Utilize social media advertising and influencer collaborations to amplify your reach.
  • Monitor and Analyze Performance: Regularly monitor and analyze your website’s performance using tools like Google Analytics and Google Search Console. Track keyword rankings, organic traffic, click-through rates, and conversion rates. Identify areas for improvement and adjust your SEO strategies accordingly.

In an increasingly competitive online landscape, implementing effective SEO strategies is vital for your website’s visibility and success. By conducting thorough keyword research, optimizing on-page elements, creating high-quality content, optimizing for mobile devices, focusing on user experience, building high-quality backlinks, leveraging social media, and monitoring performance, you can enhance your website’s SEO and drive organic traffic. Stay up to date with the latest SEO trends and adapt your strategies accordingly to stay ahead of the competition.

Muhammad Shahidul Islam

Sr.Instructor of Computer Technology

Daffodil Polytechnic Institute


The Importance of Mindfulness for Students in Bangladesh

The Importance of Mindfulness for Students in Bangladesh

As I have been serving as a teacher for several years, I have observed that students in our country are under immense pressure to succeed academically. With a highly competitive education system and limited opportunities, it can be easy for students to feel overwhelmed and stressed. However, practicing mindfulness can help students stay focused and centered, and ultimately lead to greater success.

  1. What is Mindfulness? 

Mindfulness is the practice of being present and fully engaged in the current moment, without judgment or distraction. This means paying attention to your thoughts, emotions, and physical sensations, and staying focused on the task at hand.

  1. How Does Mindfulness Work?

Mindfulness works by training the brain to focus on the present moment, rather than dwelling on the past or worrying about the future. This involves paying attention to one’s thoughts, emotions, and physical sensations without judgment, and acknowledging them without becoming overwhelmed by them. By practicing mindfulness regularly, students in Bangladesh can develop a greater sense of self-awareness and learn to manage their thoughts and emotions in a more constructive way.

Studies have shown that mindfulness can actually change the brain’s neural pathways, resulting in increased activity in regions associated with positive emotions and decreased activity in regions associated with negative emotions. This can lead to a greater sense of well-being and reduced stress levels. Additionally, mindfulness has been found to have a positive impact on the immune system, resulting in improved physical health.

In short, mindfulness works by rewiring the brain to focus on the present moment and manage thoughts and emotions in a more positive and constructive way. With regular practice, students in Bangladesh can reap the many benefits of mindfulness and improve their overall well-being.

  1. Importance of Mindfulness for Students in Bangladesh

There are several benefits of mindfulness for students in Bangladesh, including:

  • Improved academic performance: When students practice mindfulness, they learn to tune out distractions and stay focused on their studies, which can lead to improved academic performance.
  • Reduced stress and anxiety: Mindfulness can help students manage the stress and anxiety that often comes with a highly competitive education system.
  • Increased self-awareness: By practicing mindfulness, students can become more aware of their thoughts and emotions, and develop a greater sense of self-awareness.
  • Improved mental health: Mindfulness can also improve mental health by reducing symptoms of depression and anxiety.

According to a report published by the Dhaka Tribune, the demand for mindfulness and meditation programs has increased by 50% in the last five years in Bangladesh. The report highlights that people from various backgrounds, including students, professionals, and homemakers, are seeking mindfulness practices to improve their mental health and well-being. The report suggests that the increasing demand for mindfulness programs in Bangladesh indicates a growing awareness of the importance of mental health and well-being.

  1. How to Practice Mindfulness: There are several ways that students in Bangladesh can practice mindfulness, including:
  • Meditation: Taking a few minutes each day to meditate can help students stay centered and focused.
  • Breathing exercises: Deep breathing exercises can help students calm their minds and reduce stress.
  • Mindful eating: Eating mindfully, by paying attention to the taste, texture, and aroma of food, can help students develop a greater appreciation for the present moment.
  • Mindful walking: Taking a walk and being fully present at the moment can help students reduce stress and improve their mental health.

In conclusion, mindfulness is a valuable tool for students in Bangladesh that can help them stay focused, reduce stress, and ultimately achieve greater academic success. As a teacher, I encourage my students to practice mindfulness regularly, and I have seen firsthand the positive impact it can have on their lives. By taking just a few minutes each day to practice mindfulness, students in Bangladesh can improve their mental health and overall well-being. So, I urge all students to give mindfulness a try and see the positive effects for themselves.

Benojir Tabassum


Business Studies

Daffodil Polytechnic Institute

Reference: Bangladesh Institute of Health Sciences. Mindfulness: A Promising Tool for Mental Health Promotion (2021).


Relation between detail area plan & working drawing

A detailed area plan and a working drawing are two different types of drawings used in the field of architecture and engineering section. However, there is a relationship between them as they provide important information about a construction project.

Detail area plan:

A detailed area plan is a type of architectural or engineering drawing that provides an overview of a specific area, such as a building floor, site or landscape. It is a detailed graphical representation that includes all the important information about the area, including the location of walls, doors, windows, and other structural elements.

A detailed area plan can also include information about the materials and finishes to be used in the area, as well as the dimensions and measurements of each element. It is typically used by architects, designers, and engineers to communicate their design ideas to clients, stakeholders, and contractors.

                                                                         Fig: Detail area plan

Working Drawing Plan:

Architectural working drawings are technical drawings created by architects and architectural drafters that provide detailed and precise information about the design of a building. These drawings are used to communicate design specifications and construction details to contractors, builders, and other professionals involved in the construction process.

Architectural working drawings typically include floor plans, elevations, sections, and details. Floor plans show the layout of the building and the location of walls, doors, windows, and other elements. Elevations show the vertical appearance of the building and the location of the doors, windows, and other openings. Sections show a cut-through view of the building, which reveals the interior structure and details. Details provide specific information about the construction and materials used for various building elements, such as the roof, walls, and foundation.

Architectural working drawings serve as a critical communication tool between the design team and the construction team, ensuring that the building is constructed according to the designer’s specifications and requirements. They are also important for obtaining necessary permits and approvals from local authorities and for estimating project costs.

                                                                        Fig: working drawing plan

Relation between detail area plan & working drawing plan:

The detail area plan is a type of drawing that provides detailed information about a specific area or component of a building, while working drawings are a set of technical illustrations that provide precise and accurate information about the design and construction of a building. The detail area plan is typically included as part of the set of working drawings, and it provides a more detailed view of a particular area or feature than is shown in other types of drawings. Both detail area plans and working drawings are important tools for architects and builders, as they provide essential information about the design and construction of a building. 

In summary, the detail area plan is a type of working drawing that provides detailed information about a specific area or feature of the building. It is a component of the set of working drawings that is used to provide precise and accurate information about the design and construction of the building.

                                                                                                                                                            Reference- Google


Shanta Islam

Architecture/AIDT Department

Instructor, Daffodil Polytechnic Institute


Making a Successful Resume and Cover Letter for Bangladeshi Diploma Engineers

Having a strong CV and cover letter is essential while trying to land a job as a diploma engineer in Bangladesh. You can stand out from the competition and improve your chances of being noticed by potential employers by creating a powerful resume and cover letter. The following advice will be to create a resume and cover letter that will stand out.

Create a resume and cover letter specifically for the position you’re looking for. Spend some time researching the position you are looking for before you begin to write your resume and cover letter. Find out what qualities and talents the company is looking for, and make sure to highlight them in your cover letter and CV. This will demonstrate to the company that you are aware of the job’s criteria and that you possess the qualifications they are seeking in a candidate.

For instance, if you’re seeking a position in textile engineering, be sure to emphasize your familiarity with fabric testing, quality control, and textile production procedures. In your resume, if you’re searching for a position in computer engineering, be sure to emphasize your knowledge of coding languages and software development tools. 

Emphasize your understanding of project management, safety laws, and building materials when applying for positions in civil engineering.

Consider your accomplishments rather than just your work responsibilities.

Instead of merely seeing a list of your obligations, employers want to know what you have actually done in past positions. Make careful to draw attention to particular accomplishments that showcase your talents and abilities while writing your resume and cover letter. Included here are any accomplishments that demonstrate your prospective worth to the company, such as projects you’ve finished, accolades you’ve won, or other recognition.

If you are a textile engineer, for instance, you may discuss a project where you improved the production procedure to decrease waste and boost efficiency. If you are a computer engineer, describe a project where you created new software that increased productivity or fixed a particular issue. Mention a project where you planned and managed the construction of a building or piece of infrastructure if you are a civil engineer.

Use the job description’s terms and phrases.

Many businesses analyze cover letters and resume for particular words and phrases using automated algorithms. Use keywords and phrases from the job description in your cover letter and CV to improve your chances of being found by these algorithms.

This will demonstrate to the company that you possess the abilities and credentials they are seeking.

Make sure to highlight your expertise with CAD software in your resume and cover letter, for instance, if the job description stresses the requirement for understanding of CAD software for textile engineering. Make sure to mention your experience with Java programming in your resume and cover letter if the job description highlights the requirement for Java programming skills for computer engineering. Make sure to indicate your familiarity with building codes in your resume and cover letter if the job description highlights the requirement for understanding building codes for civil engineers.

Draw attention to your soft abilities.

In addition to technical skills and qualifications, employers are also looking for candidates with strong soft skills. Soft skills are personal attributes that enable you to interact effectively with others and include skills like communication, teamwork, leadership, and problem-solving.

Make sure to highlight your soft skills in your resume and cover letter. For example, if you’re a textile engineer, mention your ability to work effectively in a team environment and your strong communication skills. If you’re a computer engineer, mention your ability to troubleshoot problems and your experience leading a team of developers. If you’re a civil engineer, mention your experience with project management and your ability to work under pressure.

Use a professional format and design.

Finally, make sure that your resume and cover letter have a professional format and design.

Highlight Your Technical Abilities: Demonstrating your technical abilities in your resume may have a big influence. Technical skills are essential for diploma engineers in Bangladesh. An architect, for instance, would promote their proficiency with AutoCAD, Revit, and SketchUp, whereas an automobile engineer might do so by highlighting their familiarity with automotive software like MATLAB and Simulink.

Display Your Professional Success: Employers in Bangladesh are interested in applicants who have contributed significantly to their prior businesses. For instance, civil engineers can discuss their involvement in the planning of a significant infrastructure project or their contribution to the creation of a new technology. These accomplishments can help you stand out from the competition and enhance your candidacy.

Employers in Bangladesh frequently use applicant tracking systems (ATS) to review resumes, so make use of the keywords from the job description. Include pertinent keywords from the job description in your resume and cover letter to boost your chances of being called in for an interview. An electrical engineer, for instance, may use the terms “power distribution,” “control systems,” and “circuit design” to highlight their proficiency.

Personalize Your Cover Letter and Resume: Employers in Bangladesh value candidates who take the time to tailor their application materials to the particulars of the position because every job application is different.

. For instance, a car engineer asking for a research and development post might emphasize their prototype and testing experience, whereas an architect engineer applying for a project management position can emphasize their leadership and organizational abilities.

Strong action verbs should be included in your resume and cover letter to demonstrate your abilities and expertise. Use stronger verbs like “designed,” “implemented,” and “managed” in place of weak verbs like “assisted” or “worked on.” A civil engineer, for instance, may use the action verb “oversaw” to indicate their function as a team leader of construction workers.

You may increase your chances of getting hired as a diploma engineer in Bangladesh by including these suggestions in your resume and cover letter, regardless of whether you have a professional background in architectural engineering, civil engineering, or car engineering.


Patio cover roofing materials

প্যাটিও কভার ছাদ উপকরণ

আপনি কি আপনার সপ্তাহান্তে আরাম করে কাটাতে চান বা আউটডোর খেলাধুলায় ব্যস্ত থাকতে চান? আপনি ঘুম থেকে উঠলে পাখির ডাক শুনতে চান? এখানে আপনার সমাধান! আপনার সুন্দর পরিকল্পিত বহিঃপ্রাঙ্গণটি ঠিক এটাই প্রদান করবে। তবে বেশিরভাগ বহিঃপ্রাঙ্গণ খোলা, যা আপনার উপভোগকে সীমাবদ্ধ করে।

তাই আপনার থিমের সাথে মেলে এবং রক্ষণাবেক্ষণ করা সহজ যেকোন উপযুক্ত, দীর্ঘস্থায়ী উপাদানে আপনার বহিঃপ্রাঙ্গণ কভার করার সময়। আপনি যখন আপনার বহিঃপ্রাঙ্গণ কভার করার সিদ্ধান্ত নেন, আপনার কোন অভিজ্ঞতা না থাকলে আপনার বহিঃপ্রাঙ্গণ কভারের জন্য কোন উপাদানটি সেরা তা নির্ধারণ করা কঠিন।

বিভিন্ন ধরণের প্যাটিও কভার বিভিন্ন উপকরণ, আকার এবং আকারে পাওয়া যায়। চিন্তা করবেন না; আমরা আপনার জন্য সেরা বহিঃপ্রাঙ্গণ কভার নির্ধারণে আপনাকে সহায়তা করব!

যাইহোক, আপনি একটি বহিঃপ্রাঙ্গণ কভার চয়ন করার আগে, নিম্নলিখিত বিবেচনা করুন:

বহিঃপ্রাঙ্গণের ছাদের উপকরণগুলি অবশ্যই দীর্ঘস্থায়ী এবং চরম আবহাওয়া সহ্য করার জন্য যথেষ্ট শক্তিশালী হতে হবে।

বহিঃপ্রাঙ্গণ উপাদান কাঠামো বাকি মেলে আবশ্যক।

বহিঃপ্রাঙ্গণ উপকরণ প্রত্যাশিত হিসাবে সঞ্চালন আবশ্যক

বহিঃপ্রাঙ্গণ কভার উপকরণ তালিকা 

  1. পলিকার্বোনেট
  2. কাঠ
  3. অ্যালুমিনিয়াম
  4. ধাতু
  5. ভিনাইল
  6. ফ্যাব্রিক
  7. বোনা বাঁশ
  8. গ্লাস

1. পলিকার্বোনেট প্যাটিও কভার

পলিকার্বোনেট প্যাটিও কভার প্যানেল আকারে পাওয়া যায়। এই উপাদান তাপ এবং UV প্রতিরোধী, যা আপনাকে গ্রীষ্মে ঠান্ডা থাকতে সাহায্য করে। এই হালকা উপাদান ক্র্যাক বা ভাঙ্গা ছাড়া অনেক চাপ সহ্য করার জন্য যথেষ্ট শক্ত।

2.কাঠের বহিঃপ্রাঙ্গণ কভার

আপনি যদি প্রকৃতিকে ভালোবাসেন এবং আপনার বাড়িতে এটিকে জড়িত করতে চান তবে একটি কাঠের প্যাটিও কভার সবচেয়ে ভাল। কাঠের প্যাটিও কভার শক্তিশালী এবং দীর্ঘস্থায়ী হয়। এই বহিঃপ্রাঙ্গণ কভার একটি স্বাগত এবং উষ্ণ বহিরঙ্গন স্থান তৈরি করে।

3. অ্যালুমিনিয়াম প্যাটিও কভার

অ্যালুমিনিয়াম প্যাটিও কভার হালকা এবং টেকসই। এই উপাদানটির উচ্চ মূল্য ন্যায্য কারণ এটি অত্যন্ত টেকসই। এই উপাদানটি ঘোরানো, ফাটল বা কাঠের মতো মোড়ানো যাবে না।

4. মেটাল প্যাটিও কভার

মেটাল প্যাটিও কভার সাধারণত অ্যালুমিনিয়াম দিয়ে তৈরি। এই উপাদানটিও শক্তিশালী এবং দীর্ঘস্থায়ী, পলিকার্বোনেটের মতো। যাইহোক, কারণ এটি কঠোর আবহাওয়ার অবস্থার প্রতিরোধী নয়, এই বহিঃপ্রাঙ্গণ কভার উপাদান অন্যান্য বহিঃপ্রাঙ্গণ উপকরণ তুলনায় আরো রক্ষণাবেক্ষণ প্রয়োজন.

জয়ন্ত চন্দ্র 


ড্যাফোডিল পলিটেকনিক ইনস্টিটিউট


Submarine Communication Cable 

The first submarine communications cables laid beginning in the 1850s carried telegraphy traffic, establishing the first instant telecommunications links between continents, such as the first transatlantic telegraph cable which became operational on 16 August 1858.

A cross section of the shore-end of a modern submarine communications cable 

1  – Polyethylene

2   – Mylar tape

3   – Stranded steel wires

4   – Aluminum  water barrier

5   – Polycarbonate

6   – Copper or aluminum tube

7   – Petroleum jelly

8   – Optical fibers 

Environmental impact : 

The main point of interaction of cables with marine life is in the benthic zone of the oceans where the majority of cable lies. Studies in 2003 and 2006 indicated that cables pose minimal impacts on life in these environments. In sampling sediment cores around cables and in areas removed from cables, there were few statistically significant differences in organism diversity or abundance. The main difference was that the cables provided an attachment point for anemones that typically could not grow in soft sediment areas. Data from 1877 to 1955 showed a total of 16 cable faults caused by the entanglement of various whales. Such deadly entanglements have entirely ceased with improved techniques for placement of modern coaxial and fiber-optic cables which have less tendency to self-coil when lying on the seabed. 

Cable layer :

A cable layer or cable ship is a deep-sea vessel designed and used to lay underwater cables for telecommunications, electric power transmission, military, or other purposes. Cable ships are distinguished by large cable sheaves  for guiding cable over bow or stern or both. Bow sheaves, some very large, were characteristic of all cable ships in the past, but newer ships are tending toward having stern sheaves only, as seen in the photo of CS Cable Innovator at the Port of Astoria on this page. The names of cable ships are often preceded by “C.S.” as in CS Long Lines.

Modern cable ship:

  Modern cable ships differ greatly from their predecessors. There are two main types of cable ships: cable repair ships and cable-laying ships. Cable repair ships, like the Japanese Tsugaru Maru, tend to be smaller and more maneuverable; they are capable of laying cable, but their primary job is fixing or repairing broken sections of cable. A cable-laying ship, like Long Lines, is designed to lay new cables. Such ships are bigger than repair ships and less maneuverable; their cable storage drums are also larger and are set in parallel so one drum can feed into another, allowing them to lay cable much faster. These ships are also generally equipped with a linear cable engine (LCE) that helps them lay cable quickly. By locating the manufacturing plant near a harbor, cable can be loaded into the ship’s hold as it is being manufactured.

Submarine cable AC or DC 

The majority of these distribution or transmission subsea circuits are AC cables at medium or high voltages of up to 132kV. 

3rd submarine cable in Bangladesh    :

Cox’s Bazar

The cable will have core landing stations in Singapore, India, Djibouti, Egypt and France. The Bangladesh branch will stretch to the cable landing station in Cox’s Bazar through the Bay of Bengal. On March 27, 2004, the Government of Bangladesh signed an agreement for the construction and maintenance of submarine cables in Dubai.  Through this agreement with South-East-Asia-Middle-East-West Europe-4 (SEA-ME-WE-4) consortium of  16 telecom companies from 14 countries, Bangladesh has entered the super highway of information technology.  The Bangladesh section is 1,240 km long in this 22,000 km connection line from Marseille, France to Singapore.  Bangladesh joins this network at Cox’s Bazar.  The government has to bear the cost of laying optical fiber from Dhaka and Chittagong to Cox’s Bazar for a distance of 170 km.  On 21 May 2006, Bangladesh joined the information technology giant through the laying of submarine cable.

Bangladesh can join new submarines by 2021.  Bangladesh has joined the new C-ME-6 consortium for its third submarine cable.

 The entrepreneurs of this consortium have already been informed officially by letter that Bangladesh is staying in this cable.  SEA-ME-WE (SEA-ME-WE) is an abbreviation for Southeast Asia, the Middle East, and Western Europe.As the cable is laid through this area, each cable is named as such.  Such as C-Me-Wee 4, C-Me-Wee 5.  The region’s countries in the latest C-ME-5 consortium included Bangladesh, Singapore, Malaysia, Indonesia, Thailand, Sri Lanka, India, Pakistan, Saudi Arabia, Qatar, Oman, UAE, Djibouti, Egypt, Turkey, Italy, France, Myanmar,  Yemen.

 These 19 countries are connected to it through 19 landing points.  The new CMI-6 consortium will also include countries from Southeast Asia, the Middle East and Western Europe.

Now the bandwidth usage in the country has touched one thousand Gbps.  At the end of November 2018, the total number of active internet connections in the country stood at 9.18 million.  Out of which 86.2 million are connected through mobile phones.

 Although there are only 57 lakh 35 thousand in number, most of the internet bandwidth is used through broadband.  Apart from this, there are 61,000 WiMAX connections.  tech city 

Durgam has been connected to the national grid by laying 33 kV (kilovolt) overhead line from Cox’s Bazar’s Matarbari sub-station through river crossing towers, 5 km double circuit 33 KV submarine cable with fiber optic under Kutubdia channel and commissioning of 33/11 KV substation at Kutubdia Island.  Island. 3 days ago. 

Shuva Sarker

Jr. Instructor 

Telecommunication Technology 


How to develop English speaking skill ?

English is one of the most widely spoken languages in the world, and being able to speak it fluently can open up many opportunities in both personal and professional settings. If you’re looking to improve your English speaking skills, there are a variety of strategies you can use to become more confident and proficient in your communication. In this blog post, we’ll explore some of these strategies.

Immerse yourself in the language

One of the most effective ways to develop your English speaking skills is to immerse yourself in the language as much as possible. This means listening to English music, watching English movies or TV shows, and even reading English books. The more you surround yourself with the language, the more natural it will feel to you and the easier it will be to speak it.

Practice with a language partner

Finding a language partner who is also looking to improve their English speaking skills can be a great way to practice speaking. You can have conversations in English and provide feedback to each other, which can help you both improve. There are many online platforms and apps that can help you find a language partner, or you can join local language exchange groups in your community.

Take a language class

Taking a formal English language class can also be beneficial for improving your speaking skills. You’ll have the opportunity to practice speaking in a structured environment with a teacher who can provide feedback and guidance. Additionally, you’ll learn grammar rules and vocabulary that can improve your overall understanding of the language.

Record yourself speaking

Recording yourself speaking can be a useful tool for improving your English speaking skills. Listen to yourself speak and take note of any areas where you could improve, such as pronunciation or grammar. You can also compare your recordings to native English speakers to identify areas where you need to improve.

Practice pronunciation

Pronunciation is an important aspect of speaking English fluently. Practice pronouncing English words correctly by listening to how native English speakers pronounce them and practicing until you get it right. There are also many pronunciation apps and online tools that can help you improve your pronunciation.

Speak in English as much as possible

The more you speak in English, the better you’ll become at it. Try to speak in English as much as possible, even if it’s just with yourself. Practice speaking about everyday topics like your hobbies, work, or family. The more you practice, the more confident you’ll become.

In conclusion, developing your English speaking skills takes time and effort, but with the right strategies, it’s possible to become a more confident and proficient speaker. Immersing yourself in the language, practicing with a language partner, taking a language class, recording yourself speaking, practicing pronunciation, and speaking in English as much as possible are all effective ways to improve your English speaking skills. Remember, the key is to practice regularly and be persistent in your efforts to improve.


Name: Mst. Sazia Zarin Sarker

Designation: Instructor

Department: English