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A 2-port MIMO (Multiple input Multiple Output) antenna is analyzed in this research. The antenna configuration is designed with antenna elements positioned orthogonally. FR4 foundation, with an antenna with a dielectric constant of 4.4 and a loss tangent of 0.02 is built. Within the below-6 GHz spectrum,...

As the requirement for the power quality is increasing nowadays, the distributed source energy has been widely used. The association of different Distributed Generation System (DGS) could cause as many problems as it may solve. Micro-grid associates the distributed generation and the loads as a subsystem....

Cohesion and coherence are essential elements that have a role in forming structural coherence and coherence of the meaning of discourse texts. The formation of a coherent structure and semantic relationship cannot be separated from using the correct elements of cohesion and coherence, which are marked...

The design and simulation of a small quad-band microstrip antenna for WLAN (2.4 GHz and 5.2 GHz) and WiMAX (3.5 GHz and 5.8 GHz) applications are shown in this work. The antenna may achieve four resonant frequencies thanks to its rectangular patch, two symmetrical L-shaped stubs, and defective ground...

Reference is deixis following the context of the language so that it always changes and appears in various situations and language events, resulting in the meaning of the reference in one lingual unit being different. This study examines the form of person and time deixis and their forms of reference...

The impact of distributed generation on a local sub-transmission system or a local distribution system was studied in the paper. DGs operating models for dynamic stability analysis were obtain, and an optimal penetration of DGs decision method was proposed to maximize the penetration level of DG on the...

In order to meet actual situations for fault recovery of distribution network with micro grid, a strategy that micro grid runs firstly with important loads in islanding mode is studied. Generating islanding, the dynamic changes of the various DGs and loads in non-fault zone should be considered, and...

To integrate DIgSILENT/PowerFactory into the core computing tool of the high-level application platform for dispatching operation and planning analysis, this paper studies the automation technology of importing online grid models to DIgSILENT and exporting calculation results to DIgSILENT. Based on IEEE9...

The control of the speed of the diesel engine is the key to guarantee the AC output quality of the DGS (Diesel Generator Set). Because of the heavy noise and pollution of the physical DGS, it is a good way to build the mathematical model for research on the control of the diesel engine output speed....

With increasing numbers of distributed generations (DGs) installed in distribution grids, the connection between transmission and distribution network becomes much stronger. Power flow calculation without consideration of transmission side may lead to inaccurate result, especially when penetration rate...

In order to research the influence of distributed generation access to distribution network, a mathematics model of distribution network reconfiguration with distributed generation is presented in this paper. Fireworks Algorithm is used to solve this problem. According to the characteristic of distributed...

Increasing insertion of distributed generations(DGs) challenges power grid security. Based on analysis of failure impact delivery which is divided into the counter-flow delivery and the direct-flow delivery, the approach of distribution system reliability evaluation is proposed. Because of no accurate...

With the development of rectification technology and DC equipment, hybrid DC-AC transmission has arisen in the distribution network. In addition, the penetration of distributed generation (DG) in the distribution network makes the analysis of power system more complicated. As a key measure of grid programming...

This research paper investigates about the novel approach in the design and analysis of Couplers operating at 5 GHz, which finds its application for next generation communication systems. The concept of Defected Ground Structure (DGS) in the design of planar coupler is useful for next generation communication...

In this paper a spiral-shaped monopole like MIMO/Diversity antenna is proposed for mobile handsets. The proposed MIMO antenna covers the frequency bands LTE700 (777-787), GPS-L1 (1565-1595), and WLAN (2400- 2480). The isolation between ports is below -20dB for LTE, -21dB for GPS-L1, and -18 dB for WLAN...

Quanfeng Lantern Opera (also “Quanfeng Hua Deng”, “全丰花灯”), an important local folk art form of Jiangxi Province, was included in the First National List of Intangible Cultural Heritage of China in 2006 (500IX-52). It has developed a unique performance form and characteristics after long-standing as the...

In this paper, a novel symmetrical split-ring resonators defected ground structure (DGS) wideband bandpass filter is proposed. This filter exhibits advantages such as miniaturization, large range of bandwidth and easy fabrication. This paper analyzes the symmetrical split-ring resonators DGS unit and...

The majority of system losses are caused by the distribution system, hence distribution utilities are embracing new technologies and investigating other options, such as placing distribution generation (DG) in a radial distribution system to reduce losses and maximize benefits. Finding the best solution...

In a parallelly operated system composed of multi distributed generations (DGs), traditional droop control is usually utilized for load distribution. This article introduces the basic principle which is based on the characteristics of the parallel inverters power droop, and analyzes the circulation phenomenon...

To meet the demand of distribution network state estimation containing various distributed generations (DGs), an observability analysis model is proposed. In the model, distribution network nodes are divided into two types, nodes connected with DGs and nodes not connected with DGs to calculate their...

In “General Provisions of Civil Law” of the People’s Republic of China, there are some important new terms such as “gongxuliangsu” (公序良俗, public policy and ethics), “bingchichengshi, keshouchengnuo” (秉持诚实，恪守承诺, uphold honesty and honor commitment) and “shanyixiangduiren” (善意相对人, the good-faith third...

From the perspective of speech act theory, based on the self-constructed composite corpora, this paper analyzes the English translation of modal verbs commonly used in Chinese legislative texts. The results show that: the top three modal verbs used in legislative texts of Mainland China are “yingdang...

Microstrip patch antennas are well-known for their lightweight, compact, and cost-efficient design, making them perfect for transmitting and receiving electromagnetic signals. They are simple to manufacture, extremely versatile, and can be effortlessly incorporated into a wide range of systems. This...

A microstrip triple-band antenna with “T”-shaped strip and dumbbell DGS has been proposed for wireless communication. The antenna was designed and simulated using Simulation Technology (CST) Studio Suite 2014. Characteristics of the proposed antenna were improved by parameters design modification. The...

Mao Zedong’s “Speech at the Yan’an Forum on Literature and Art” in 1942 and Xi Jinping’s “Speech at the Forum on Literature and Art” (hereinafter referred to as the two “Speeches”) in 2014 are two glorious Marxist literature and art theoretical guidance documents. Under the illumination of the spirit...

This paper presents a scheme of designing proportional-derivative (PD) observer for chaotic systems. The proposed design is based on contraction theory approach. For this purpose, co-ordinate transformation of variables are used to avoid derivatives of output in observer. Results are numerically verified...

The Smart Grid (SG) has widely supported the electric power from the Distributed Generation (DG). It becomes a practical standard to generate the electric power from a renewable energy into the distribution system to compensate for the power demand, especially in the peak time. However, the advancement...

The transient models of wind power generation system and photovoltaic (PV) power generation system are established. The constant power control mode is used to control the photovoltaic system and wind system, which is achieved by controlling DC voltage. And a direct drive permanent magnet synchronous...

This paper propose configuration of new wideband microstrip patch antenna for wireless communication such as WLAN. A new novel stacked with circular shape patch is presented with wide impedance bandwidth of 19.14 % is achieved. The antenna structure is designed and simulated. Simulated results for return...

The value setting of the traditional distance protection has become very difficult for the distribution system with distributed generators (DGs) owing to the randomness of the DG output power. This paper proposes a new adaptive distance protection scheme to solve this problem. Firstly, on the basis of...

Reactive power optimization of distribution network is necessary,because optimize configuration of distributed generators can effectively reduce power loss.A new method was proposed in this paper.Firstly, installation points of distributed power were found with the means of power grid loss sensitivity....

This paper examines the source and deduction process of the time of “Minor New Year” through poetry literature. According to the Compilation of Chinese Local Chronicles and Folklore Materials (《中国地方志民俗资料汇编》) [1], this paper summarizes the time of “Minor New Year” in various regions of China and the regions...

While “xiaonian (the Chinese minor new year)” is one of the important Chinese traditional festivals, its date is not nationally unified. This essay therefore summarized “xiaonian” time and the regions where the “xiaonian” time has evolved recorded in Compilation of Chinese Local Chronicles and Folklore...

This paper presents a multi-agent system (MAS) based dynamic control framework for the grid-connected microgrid (MG), to realise the prescribed interactive power between the MG and the main grid, while managing the output power of distributed generators (DGs) roughly proportional to their capacities....

This paper presents an improved model of multi-DGs system for analyzing the system stability during grid-connected. The DGs, in the system, are equipped with the Sandia frequency shift (SFS) scheme as anti-islanding protection technique. Relationship of system parameters, such as the length of distribution...

The structure of conventional distribution system is radial, and overcurrent relays are widely used as primary protection. When a large number of distributed generations (DGs) are introduced, the system becomes an active distribution network. It is necessary to study new protection schemes applicable...

The purpose of this paper is to design a direct down-conversion system using sub-harmonic mixer with microstrip lines, it is also called a zero intermediate frequency system. By utilizing the direct conversion configuration, it can not only avoid to use an additional voltage controlled oscillator and...

A compact and simple ultra-wideband microstrip-fed planar antenna with double bandstop characteristic is presented. The antenna consists of a rectangular monopole and two W-shaped slots inserted into the radiating patch and the truncated ground plane. By using a W-shaped slot defected ground structure...

As the mode of “film and television + tourism” continues to heat up, the shooting locations of film and television have become hot travel destinations and internet-famous sites. From the perspective of tourists, this paper selects the popular film and television IP “The Untamed (陈情令)” as the research...

The Chinese civilization has been bursting with vitality and vigor in the process of dialogue with other cultures, especially with the Western classic Bible. The “best” translation of the supreme master of Christianity is one of the core issues in the process of translating the Bible into Chinese. In...

Textbook research is an important aspect of teaching research. Only through in-depth and careful research of textbooks, can we prepare and teach well, and finally achieve the teaching objectives. Interchangeable characters (通假字), variant characters (异体字), and ancient-present characters (古今字) are the...

Foreign words or in Japanese called Gairaigo (外来語) is words that taken from foreign languages, and adapted to Japanese word formation. The purpose of this research is to get to know about the formation of Gairaigo in Japanese commercial advertisements that appeared in the period 2016 to 2020, the types...

The operation mode after faults in distribution network will be changed due to more and more distributed generations (DGs) integrated into distribution network with their additional service ability. And the above mode is carried out based on the different bus information, such as the value of active...

Micro-grid is as an effective technology for controlling the influx of distributed generations and improving the percentage of renewable energy generation, both of which are researched all over the world. The traditional linear droop control is important for micro-grids in order to realize the plug and...

Humans experience three phases in life, namely birth, marriage, and death. Nativity symbolizes the beginning of life, the moment when a new human being begins to breathe the air of the world. It is an event that brings great joy to the family and community, a symbol of hope and the future. Marriage as...

This study examines the portrayal of gender in the media, specifically focusing on the use of language by Wu Youli in Su Zhexian’s film “野夏天” (Summer). The objective is to analyze how the representation of gender and societal rolesin the film aligns with feminist perspectives. Additionally, the study...

This is Part II of a two-part paper which presents a methodology for fault location and isolation and service restoration (FLISR) for power distribution grids. The Criterion 1 discussed in Part I is adapted to locate faults when distributed generations (DGs) exist. For DGs with larger capacity, faults...

The optimal management of hemodynamic disorders among critically ill patients requires an accurate assessment of hemodynamic status. Global End Diastolic Index (GEDI) is taken for a more reliable indicator of preload in critically ill patients than central venous pressure and doctors tend to arrange...

Background: Interleukin-6 (IL-6) was considered to be with the severity and mortality in COVID-19 patients, which implies a potential therapeutic target for treatment. We aimed to evaluate the safety and initial efficacy of Tocilizumab treatment for COVID-19 patients. Methods: In the retrospective study,...

Purpose: Delirium is a frequent occurrence amongst Intensive Care Unit (ICU) patients, but studies on its causes are sparse and its risk factors vary from disease to disease. Here, in this study, an attempt was made to investigate the factors associated with the prognosis of delirium in the ICU. Methods:...