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Digital images are composed of pixels, and lossless and lossy compression techniques are used to reduce the amount of data. Compression in the JPEG format involves preprocessing, DCT, quantization, and encoding. Digital images are used in a variety of fields, including photography, medical imaging, artificial intelligence, and more, with advances in quality enhancement and copyright protection...

Mechanical and aerospace engineering is a comprehensive major, and students can work in various fields such as research and development, design, and sales. In particular, the ‘Design and Manufacturing’ class helped me to understand the direction of the mechanical major and clarify my career path through teamwork and presentation experiences. The experience gained in this course...

In a monopolistically competitive market, advertising plays an important role in helping sellers strengthen their monopoly position by highlighting the differentiation of their products and driving buyer preferences. Through advertising, consumers are made aware of the characteristics of the product, which helps sellers gain pricing power. In the long run, the entry of new sellers may reduce the...

This article explores the power of positive language through Masaru Emoto’s “Water Knows the Answer” experiment and Young Don PD’s x-Files experiment, and discusses the controversy in the scientific community surrounding them and the boundaries between pseudoscience and science. He explains the definition of science and paradigm shifts through the perspective of...

The debate over data ownership is an ongoing one between data subjects and big data holders. Recently, the debate has evolved in favor of strengthening data subjects’ rights through data portability instead of ownership. Data portability allows data subjects to freely transfer and control their data, facilitating the flow of data between companies.   Records, such as transportation...

Textbooks are the first introduction to science education for most people, but they don’t convey the true process of scientific research. Science advances not through accumulated knowledge, but through innovation and paradigm shifts, and this requires an education that includes the history of science and the process of scientific inquiry.   How were you first introduced to science...

Proficient readers use background knowledge to comprehend texts, adapt reading strategies to context, and contribute to solving personal and societal problems through sustained reading activities. They use post-reading reflection and evaluation to fulfill the purpose of reading.   Proficient readers have the ability to effectively use background knowledge to understand and reconstruct the...

Homo sapiens, the human species, may be at risk of extinction due to rapid advances in science and technology. Advances in genetic engineering and cyborg engineering have opened up the possibility of creating superhuman beings, which could result in natural selection pushing us out of existence.   Few people are unaware that the dinosaurs, the rulers of the earth, are extinct, that the...

Public choice theory analyzes political decision-making from an economic perspective and uses the median voter theorem and the rational ignorance model to explain the interaction between politicians and voters. The median voter theorem explains that politicians will align their policies with the preferences of the median voter, and the rational ignorance model explains that voters remain ignorant...

I struggled to find a place to live after I left school because I didn’t have the courage to talk to the guy I saw in the gym every day during my dormitory days. Over time, I saw him several times, but I never got up the courage to ask him, and by the time I finally got his contact information, he was already seeing someone else.   When I was a freshman living in a dorm, there was a...