Technology 6 - JUJUMI

What is the current-carrying capacity of a conductor?

The current-carrying capacity of a conductor refers to the maximum rated current that a conductor can handle under specific operating conditions. The current carried by a conductor is actually an electric load generated by the motion of electrons through the conductor. The current-carrying capacity of a conductor directly affects the load capacity and electrical safety …

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What is the relationship between current-carrying capacity and temperature for copper and aluminum wires?

The current-carrying capacity of copper and aluminum wires is related to temperature. Generally speaking, as temperature increases, the resistance of the conductor increases, thereby reducing its carrying capacity. This is because at high temperatures, the electrons inside the conductor collide frequently due to their thermal motion, hindering the flow of current. Specifically, the relationship between …

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How to talk when meet with somebody first time?

When meeting someone for the first time, it’s important to make a good first impression. Here are some tips on how to start a conversation: 1. Introduce yourself with a smile and a handshake. 2. Ask questions – people generally like to talk about themselves. You can ask about their job, hobbies, or interests. 3. …

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What is kVeff unit means?

kVeff usually refers to one-thousandth of the effective AC voltage, which is one-thousandth of a volt. The effective voltage is calculated by integrating the squared waveform of the AC voltage, then dividing by the square root of the time period. This value is often used to represent the equivalent AC voltage to DC voltage and …

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Mastering Autodesk Inventor: Tips and Tricks for Creating Precise Designs

Autodesk Inventor is a powerful 3D mechanical design software that helps identify and solve product design issues before they occur. It allows users to create digital prototypes and simulate real-world design problems, such as collisions, motion, stress, and fluid flow. Here are some tips for using Autodesk Inventor: 1. Know your basic tools Before diving …

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The Development, Status, and Future Prospect of Electric Vehicles

With the growing awareness of environmental protection, the influence of traditional fuel-powered cars is gradually weakening. In recent years, electric vehicles (EVs) have begun to enter people’s eyes as an eco-friendly car, and have gained continuous development worldwide. This article will introduce the development history, current situation, and future prospects of electric vehicles in detail …

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Coating materials and treatment methods for electric wires

Coating materials and treatment methods for electric wires are important for ensuring the safe and efficient functioning of an electrical system. There are several different types of coating materials that can be used to protect electric wires, including PVC (polyvinyl chloride), PE (polyethylene), Teflon (polytetrafluoroethylene), and silicone. PVC is a popular coating material due to …

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Why is the sound partition still loud, but the Wifi and partition are much weaker?

Because WiFi and sound waves really have very little in common other than they are both “waves”. Sound is a mechanical wave, while WiFi is an electromagnetic wave. Middle school physics said that “mechanical waves need to be transmitted in a medium” and “the transmission of electromagnetic waves does not require a medium”, which is of …

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Why can the light bulb be put in the mouth but not taken out?

Because the jaw has shifted. In order to put the head of the light bulb into the mouth, it is necessary to open the mouth as far as possible. At this time, a part of the jaw joint (the scientific name of the joint disc) moves forward together with the mandible. When you put your …

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Probability of detection, false reject rate of MD and XR

In the introduction of XR, the false rejection rate (FRR) and the detection rate (POD) are usually mentioned. The false rejection rate and the detection rate are the detection results of a product with a certain foreign object detection accuracy. The false rejection rate and the detection rate are usually mutually exclusive. The false rejection …

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Why does a pure electric vehicle consume high power at high speed?

I want to change trams, but I run more at high speed. Considering the high power consumption at high speed and the need to buy trams, I want to ask Miss Xia, what is the reason for the sharp increase in power consumption at high speed? Is it because the wind resistance increases or the …

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Stars are rapidly disappearing from human vision

People around the world see fewer and fewer stars in the night sky. The change of star visibility can be explained by the increase of 7% – 10% of sky brightness every year. A study published recently in the journal Science revealed the analysis results of more than 50000 times of naked eye observation of …

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Definition and main features of a smart factory

Smart factories represent a leap from traditional automation to fully connected and flexible systems. The system provides continuous access to data from connected operational and production systems to understand and adapt to new requirements. A truly smart factory integrates physical, operational, and human capital across the system to drive manufacturing, maintenance, inventory tracking, digitalization of operations through digital twins, and other types of activities across the manufacturing network. The result may be more efficient and agile systems, less production downtime, and a greater ability to anticipate and adapt to changes in the plant or across the network, further improving market competitiveness.

What is a checkweigher

A checkweigher is a device that automatically checks whether the weight is qualified when the belt is running at high speed.

How do IoT device terminals and cloud systems communicate?

With the birth of 5G communication, the network communication speed is faster, and colleagues in the Internet industry all around say that the next outlet may be the Internet of Things. Since the company’s products are currently hardware-oriented, I am also fortunate to have some knowledge of the Internet of Things. In this article, I want to share with you how the terminal equipment and software in the Internet of Things products communicate.