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Adolescent and child depression (ACD) is not only increasing globally year by year but also has a tendency to occur at an increasingly younger age. A family is the first environment that affects an individual’s psychological development. There is a growing number of studies that prove that family factors are one of the essential factors leading to ACD. This paper aims to summarize how family factors influence ACD in a Chinese cultural context and intervention approaches for family treatment. Through literature reviews, the paper gathered and summarized recent journal articles and experiments on four major aspects of Chinese ACD and family factors (parenting style, parent-child relationship, parents’ marital relationship, and family structure), as well as family therapy-related interventions. It was concluded that family factors including parenting style, parent-child relationship, marital relationship, and family structure could be considered causal factors of ACD to varying degrees. In addition, family therapy has shown significant improvement in ACD.

As a high-sensitive and wide-band magnetic field sensor, SuperconductingQuantum Interference Devices (SQUIDs) have great advantagesin mineral detection and submarine communications. However, due tothe complexity of the Marine environment, the noise of the detectionmodule itself will have a significant impact on the detection results.Among them, the non-orthogonality of the triaxial sensor is one ofthe important parameters in the evaluation of the detection system.In this paper, the influence results of non-orthogonality on static anddynamic detection sources are given through theoretical derivation andsimulation analysis, and the non-orthogonality of the triaxial module isevaluated through experiments, and then the non-orthogonality of themodule is derived by simulation. Finally, the triaxial module is usedto test the actual magnetic field. The results of this paper have a certainguiding role for the future application of triaxial sensors in theocean and the evaluation of the non-orthogonality of triaxial modules.

With Web 5.0, the mobile phone has become the terminal device to get mobile information, and more and more social software has been popularized on the phone. Network short video app is one of the most prominent representatives. In the high demand of the market, short videos’ emergence constantly refreshes people’s horizon, increasing people’s desire to watch videos. For the audience, they not only watch the video but also have to meet social needs. It has led to the rapid expansion of the size of short video apps. Whether it is “Meipai” or “Kuaishou” released in China, or “TikTok” which focuses on 800 million users, or a series of short online video apps such as Instagram abroad, most of them take “second” as the length of the video, announced the short video “second-reading era” of the arrival. Through the video is created a carnival, and the audience has become a carnival maelstrom of followers. We need to analyze what kind of operation and management model shapes short video app development behind the audience. This article chose “TikTok” as a case study to analyze the “TikTok Operation Management Pattern.” The full text comprises 1. apps development, 2. The article has four parts: The first part elaborates the short video app’s development extremely characteristic. In the second part, the author expounds on the operation and management of TikTok. The third part focuses on the content operation and management of TikTok and its characteristics. The last part is about how to improve management operation.

An improved control strategy of multi-terminal HVDC system based on V-I characteristics is proposed in this paper. Firstly, a traditional control based on the V-I characteristics of the converters is introduced, which only considers the DC voltage and circuit conditions of the receiving converter stations. The shortcoming is that it would result in an uncontrollable voltage deviation between the converter stations at each end. To solve it, an improved scheme is designed by updating the reference DC voltage of all the converters. For a further validation, simulations of a three terminal HVDC system have been carried out in PSCAD/EMTDC. The results show that the proposed strategy has a good performance.

Study on soft black-start scheme for MMC-HVDC system with a large-scale wind farm is done in this paper. For a two-terminal MMC-HVDC system, when a fault occurs at one side, the converter station at the other side would be shut down. A three-stage startup strategy is especially given to realize the black start, which recoveries the DC voltage gradually, including uncontrollable and controllable charging process. For a three-terminal HVDC system, when a blackout situation occurs at the passive side with a wind farm, it would cause a DC voltage drop. To realize the black start, a controller is designed, which makes the AC side voltage of the converter stable enough to restart the wind farm without affecting the other converters. To validate it, simulations are built in PSCAD/EMTDC respectively. The result shows that there is a good effect for the black-start of the MMC-HVDC system by the proposed method.