Article Introduction：This section mainly introduces the use of Jquery selector to calculate the total of a certain column and a row in the table. Friends who need it can refer to the following

2016-05-16 comment 0  1608

Article Introduction：C++ is crucial in aerospace engineering by providing powerful tools to solve difficult problems such as: Computational Fluid Dynamics: CFD solvers simulate fluid flow through aircraft airfoils. Structural Analysis: Finite element solvers analyze deformations and stresses in aircraft structures. Flight Mechanics: Flight mechanics simulators predict the response of an aircraft (such as lift and drag).

2024-06-02 comment 0  411

Article Introduction：By testing autonomous flight technology for large passenger air taxis on small drones, we can observe how they avoid each other and other obstacles, which is a safer and more economical approach. We can install software on small drones to perform operations such as airspace communications, flight path management, and avoiding collisions with other aircraft. NASA said that in the future, it will launch electric vertical take-off and landing aircraft (eVTOL) as a taxi service to and from the airport. A small unmanned aerial system test platform aircraft was flown above NASA's Langley Research Center in an effort to reduce carbon emissions and improve the commuter experience. During flight, special approval from the U.S. Federal Aviation Administration (FAA) and NASA is required to ensure the aircraft is in the line of sight of observers on the ground.

2024-01-03 comment 0  1103

Article Introduction：FlightGear is an open source, multi-platform flight simulator that provides the full range of flight simulation experiences required by trainee pilots or aviation enthusiasts. This open source flight simulator offers an experience that no other simulator can offer. FlightGear crosses the ownership barriers of existing simulators and provides independence of use and scalability. Launched in 1997, the FlightGear project was developed by an ambitious global team of volunteers and has successfully created an incredibly realistic flight simulator that can be used, modified and distributed for free. FlightGear is used by a large number of flight simulation enthusiasts around the world, and is also widely used in university research and interactive exhibitions in museums. Fli

2024-02-13 comment 0  880

Article Introduction：Zero Zero Technology, the pioneer of flying cameras, announced the launch of the Harvard flying cameras X1PRO and X1PROMAX, and launched crowdfunding on Indiegogo in the early morning of August 27, Beijing time. Within 145 minutes of being online, the crowdfunding amount exceeded one million US dollars, creating the first flying camera. New record. As the world's first and most advanced flying action cameras, these two products redefine the flying shooting experience and are especially suitable for sports enthusiasts and professional content creators. Hafu flying cameras X1PRO and X1PROMAX are portable and foldable, eliminating the need for a remote control interactive experience. X1PROMAX: 1/1.3-inch CMOS sensor, customized 7-layer lens. 8K video, 14 stops of dynamic range, 107° wide-angle field of view. Customizable ND filters. X

2024-08-28 comment 0  526

Article Introduction：The news on October 25th is that at Xpeng Motors’ 1024 Technology Day event, He Xiaopeng, chairman of Xpeng Motors, made a stunning appearance last night and demonstrated for the first time a unique flying car called “Land Aircraft Carrier”. The flying car is exclusively developed and manufactured by Xpeng Huitian, an ecological company of Xiaopeng. It adopts a split-body design that can automatically separate and combine. In appearance, this flying car looks like a six-wheeled MPV, can accommodate 4-5 passengers, and has 6X6 all-wheel drive and rear-wheel steering functions. However, when you open the trunk, you'll find a foldable aircraft hidden inside. This aircraft uses pure electric drive and is capable of vertical take-off and landing and low-altitude flight. When the aircraft battery is exhausted, it can be charged in the car, and the cabin can also

2023-10-25 comment 0  937

Article Introduction：According to news from this site on April 1st, Fengfei Aviation Technology announced today that it has officially delivered the first Shengshilong to Japan's AAM (Advanced Air Traffic) pioneer operator for urban air traffic display flights, and is fully promoting its participation in the 2025 Osaka World Expo. Achieve the goal of eVTOL demonstration flight. According to reports, Shengshilong is an eVTOL electric vertical take-off and landing aircraft independently developed by Fengfei, also known as "air taxi". Shengshilong has a maximum takeoff weight of 2 tons and a 5-seater design. In 2023, it set a global range record of 250.3 kilometers for a 2-ton eVTOL on a single charge, and completed the world's first formation flight of three eVTOLs above the ton level. In February this year, Shengshilong successfully completed the first demonstration flight of the eVTOL cross-sea and cross-city route from Shenzhen to Zhuhai.

2024-04-01 comment 0  1687

Article Introduction：Urban air mobility (UAM) developer Doroni Aerospace recently released its flagship aircraft H1-X, marking its official entry into the electric vertical takeoff and landing aircraft (eVTOL) market. This aircraft demonstrates the company's strength and ambition in this field. DoroniAerospace was founded in 2016 by Doron Merdinger. Merdinger is a seasoned entrepreneur with over 25 years of design, manufacturing and business management experience. With his dream of creating sustainable air transport, he assembled a team of engineers and technicians. They are committed to making flying more accessible in the growing eVTOL market. go through

2024-03-03 comment 0  1144

Article Introduction：The Civil Aviation Administration of China held a press conference today to introduce the work on promoting low-altitude economic development and next steps. According to Xinhua News Agency, as of the end of 2023, my country had 1.267 million real-name registered drones, a year-on-year increase of 32.2%. In 2023, civil drones will fly a total of 23.11 million hours, a year-on-year increase of 11.8%. Source Pixabay Sun Wensheng, vice president of the Civil Aviation Administration of China, said that the Civil Aviation Administration will fully understand the significance of developing the low-altitude economy, implement the "Interim Regulations on Unmanned Aircraft Flight Management", and improve the functions of the integrated unmanned aircraft management platform. Strengthen the construction of the service guarantee system for low-altitude flight activities, and continue to improve service guarantees such as plan approval, air traffic control, meteorology, communications, and surveillance for low-altitude flight activities. against

2024-03-30 comment 0  969

Article Introduction：Zero Zero Technology, the pioneer of flying cameras, announced the launch of the Harvard flying cameras X1PRO and X1PROMAX, and launched crowdfunding on Indiegogo in the early morning of August 27th, Beijing time. Within 145 minutes of being online, the amount of crowdfunding exceeded one million US dollars, creating the first flying camera. New record. As the world's first and most advanced flying action cameras, these two products redefine the flying shooting experience and are especially suitable for sports enthusiasts and professional content creators. Harvest flying cameras X1PRO and X1PROMAX not only continue the X1 series’ classic portable and foldable design and interactive experience without a remote control, but also achieve revolutionary upgrades in imaging technology and flight performance. X1PROMAX breaks through the industry’s image quality ceiling, equipped with 1/1.3-inch CM

2024-09-02 comment 0  1128

Article Introduction：Leveraging Comet for Server-Sent Messaging with jQueryIn the realm of JavaScript programming, server-push capabilities have gained prominence, with the Comet design pattern emerging as a popular approach. This article explores the availability of suc

2024-10-20 comment 0  793

Article Introduction：According to reports from Hefei’s public account, EHang’s EH216-S unmanned manned aircraft conducted its first global commercial flight demonstration over Luogang Park. It is understood that the EH216-S has a body length of 5.73 meters and a height of 1.93 meters. It can be fully charged in two hours, has a maximum flight speed of 130 kilometers per hour, a battery life of 25 minutes, and a designed range of 30 kilometers. The EH216-S is a multi-functional aircraft that can be used in various scenarios, such as manned transportation, tourism, logistics transportation and medical emergency. To date, it has completed more than 40,000 safe flights in 14 countries around the world. Whether it is to facilitate people's travel or to meet the needs of various emergency situations, EH216-S is a reliable choice. its

2024-01-08 comment 0  1463

Article Introduction：In recent years, drones have become popular all over the world. Many people are curious about how drones work and what they are used for. This article will discuss the basics of drone technology and provide an overview of how drones are able to fly. It will also explore some of the different applications for drones and explain why they have become so popular! 1. What are drones? , what are its uses? Simply put, a drone is an unmanned aircraft. It can be controlled by a ground-based remote control or fly autonomously according to a pre-programmed flight plan. Drones are most commonly used for photography and videography, but are also used for land mapping, surveying, inspecting power lines and bridges, and delivering packages. Drones come in all shapes and sizes, but they all have two things in common: One is a set of rotors that allow it to fly; the other is a set of rotors that allow it to fly

2023-11-24 comment 0  2588

Article Introduction：According to news from this site on August 21, the Indian Space Research Organization (ISRO) successfully launched the "Chandrayaan-3" lunar exploration spacecraft on the afternoon of July 14. This is the first time since the agency's last mission failed. Challenge the moon landing mission again in four years. According to the plan, the Chandrayaan-3 lander will successfully land on the moon at around 20:34 on August 23, Beijing time. At that time, ISRO will broadcast the landing process live. According to the Indian Space Research Organization (ISRO), during the attempted landing Before the moon, India's "Chandrayaan-3" lunar probe had established a communication connection with "Chandrayaan-2", which had been orbiting the moon for the past four years. India's "Chandrayaan-2" probe had previously landed on the lunar surface. failed, but its orbiter is operating normally

2023-08-24 comment 0  1310

Article Introduction：According to news from this site on August 22, according to the official public account of "Shanhe Huayu", at 6:28 today, the SA750U large unmanned transport aircraft independently developed by Sunward Huayu Aviation Technology and completed by the strategic coordination of Sunward Star Airlines flew from Jingbian, Xi'an. The experimental drone test center successfully made its first flight. ▲Picture source "Shanhe Huayu" official public account, the same as below. According to reports, during the 40-minute flight test, all system equipment of the aircraft worked normally and were in good condition. The attitude of the aircraft was stable and the performance met the design specifications. After completing the scheduled flight subjects Afterwards, the plane returned smoothly and the first flight was a complete success. The SA750U is my country's first large-scale unmanned transport aircraft with a load of over 3 tons. It only took Shanhe Huayu Company 2 years and 8 months to complete the entire process from concept design to the successful first flight of the first aircraft.

2024-08-23 comment 0  856

Article Introduction：Nowadays, the use of stabilizers is becoming more and more common when traveling or shooting vlogs. Especially the mobile phone stabilizer, its price is affordable, the user experience is good, and it is very portable. However, most stabilizers have limited functions. General mobile phone stabilizers do not support camera devices and have poor compatibility. Therefore, the SCORP series launched by Feiyu has received good reviews. Recently, Feiyu has updated this product line and launched the new SCORPMINI2 stabilizer. The new generation of SCORPMINI inherits the lift-grip appearance design of the previous generation MINI. It uses polymer resin materials and aviation aluminum materials. It is compact and lightweight. The entire stabilizer weighs only 852 grams, and the weight is controlled very well. Thanks to the lift-grip design, it is easier to operate the lens

2023-10-30 comment 0  1201

Article Introduction：A display machine, also known as a demonstration machine or prototype, is a sample made to verify the rationality and correctness of a design or plan, or the feasibility of production. For example, aircraft, machines, and vehicles that have not been officially put into production after successful trial production are used as samples. wait.

2020-12-07 comment 0  61294

Article Introduction：In the latest news recently, netizens have posted photos and specifications of DJI’s upcoming AIR3S drone on social media. The DJI AIR3S drone has been comprehensively upgraded in design and functionality, and is equipped with a new sensor array on the top and front. These sensors may include ToF (time of flight) sensors and lidar sensors, which are designed to improve the drone's ability to track targets and avoid obstacles during flight. The new AIR3S drone continues the classic compact foldable design of the DJI Air series. Its appearance uses a gray fuselage and black propellers, maintaining the brand's consistent aesthetic style. The AIR3S model number is clearly marked on the arm, confirming the identity of this drone. One of the highlights of the AIR3S drone is its dual-mounted front gimbal.

2024-08-23 comment 0  894

Article Introduction：In order to popularize the knowledge of aviation science and technology, stimulate the creativity and imagination of science and technology among young people in the community, and establish the lofty ideal of becoming a technological power and realizing dreams through innovation from an early age, the Caoyang Xincun Street Women's Federation held a special summer event "Let Dreams Take Flight·UAV DIY Design". This event provided participants with an interesting science popularization feast, allowing them to experience the design and production process of drones. Part 1: Rewriting the content. In order to keep the original meaning unchanged, the content needs to be rewritten into Chinese. Popular science in DJI is a need Rewritten content Unmanned aircraft are simply called "drones", also known as "DJI", and their English abbreviation is "UAV". A drone is an unmanned aerial vehicle controlled by radio remote control equipment and autonomous program control devices. Drone refers to all unmanned aerial vehicles

2023-09-02 comment 0  1096

Article Introduction：On September 10, the Dutch company PAL-V opened an eye-catching showroom in Munich, Germany, to showcase their latest innovative product, the flying car PAL-V Liberty. This move marks a giant leap forward for the future of transportation and will make this unprecedented form of transportation accessible to more people. It is understood that the showroom provides a unique platform for potential buyers, investors and flying car enthusiasts. , allowing them to see the manufacturing process and advanced technology behind PAL-VLiberty up close. PAL-VLiberty is an aircraft with an innovative three-wheel design. It can unfold its propellers and tail rotor when taking off, turning it into a rotorcraft. This transformation only takes about 10 minutes. on land,

2023-09-18 comment 0  1274