Blue Shield is a leading company in China's information security industry. The company was founded in 1999 and listed on the Growth Enterprise Market of the Shenzhen Stock Exchange on March 15, 2012, stock code: 300297. The company has built a complete business ecosystem based on security products, covering security solutions, security services and security operations, providing one-stop information security solutions for customers in all major industries. In recent years, the company has proposed a "big security" industry development strategy, and has seized the opportunity of expanding the information security industry's expansion. Through the "endogenous + epitaxial" two-wheel drive approach, it has developed network security as the core, military security, and Internet application security. And the “big security†industrial ecosystem with important technologies such as cloud computing security as an important direction.
The company is a leading information security company in China. Based on security products, the company provides one-stop security solutions for customers in more than ten industries including government, education, military, medical, telecommunications, finance, transportation and energy. In recent years, the company has proposed a “big security†industry development strategy. While the endogenous business continues to grow, it is actively expanding its business, and its business scale and profitability have been rapidly improved.
Xiamen Meiya Baike Information Co., Ltd. (stock abbreviation: Maya Baike, stock code: 300188) was established in 1999. It is a leading enterprise in the field of electronic data forensics in China and a network space security expert. It mainly serves the domestic judicial organs at all levels. And the administrative law enforcement department. Since its listing on the GEM of the Shenzhen Stock Exchange on March 16, 2011, the main economic indicators of Meiya Baike have maintained steady and rapid growth. Up to now, it has owned 3 wholly-owned subsidiaries, 7 holding subsidiaries and 10 participating companies. Established a branch office in Beijing and established 24 branches (16 offices, 8 after-sales service points) throughout the country to provide technical support services to customers nationwide.
The leader of network security monitoring products, the company has become one of the most beneficial A-share targets with its product advantages in network supervision, electronic data forensics, deposit certificate, network intellectual property protection, and public opinion monitoring.
Shensi Electronic Technology Co., Ltd. (SZ:300479) is a provider and service provider of identity solutions. It specializes in the R&D, production, sales and service of identity authentication terminals and industrial application software, and is implementing “from industry to industryâ€. From identification to intelligent cognition, the strategy is gradually upgraded to a one-stop international service provider that provides industrial solutions with artificial intelligence in the field of identity-related.
After the company entered the GEM in 2015, based on its own technology accumulation and industry experience, it launched an upgrade strategy from “industry deep penetration to industry penetration, from identification to intelligent cognitionâ€. Four innovative industries, such as mobile exhibition industry, silver medical self-help, convenient payment and computer vision, have matured in many provinces and regions, and began to be mass-produced nationwide. Some target industries began to penetrate the business. At the same time, as IBM's partner in China's electronic equipment and software, Shensi Electronics's layout in the field of commercial artificial intelligence is also accelerating. It is committed to using IBM's world-leading Watson cognitive computing technology to create robots including industry services. Intelligent cognitive solutions such as self-service intelligent upgrade and intelligent knowledge management system help users in the medical, financial, security, social security and other industries to establish commercial artificial intelligence services based on big data and industry knowledge base.
Shijiazhuang Changshan Textile Co., Ltd. is a large-scale textile listed company integrating production, scientific research and trade. It is funded by the production and operation of state-owned assets of the original Shijiazhuang Yimian, Ermian, Sanmian and Simian. A joint-stock company established under the restructuring.
Rating and Earnings Forecast: Changshan Shares (000158) forecast 2009 earnings per share of 0.10 yuan, 2010 earnings per share of 0.02 yuan, the current target price of 8.24 yuan, investment rating is held.
Beijing Shenzhou Lvmeng Information Security Technology Co., Ltd. (hereinafter referred to as NSFOCUS) was established in April 2000 and is headquartered in Beijing. With more than 40 branches at home and abroad, it provides core products and security products and solutions for government, operators, finance, energy, Internet, education, medical and other industries to help customers achieve safe and smooth business operations. .
Based on years of security attack and defense research, NSFOCUS provides intrusion detection/protection, anti-denial of service attacks, and remote security in areas such as detection and defense, security assessment, security platform, remote security operation and maintenance services, and secure SaaS services. Professional security services such as evaluation and products such as Web security protection and security operations.
Beijing Shenzhou Lvmeng Information Security Technology Co., Ltd. was listed on the Growth Enterprise Market of Shenzhen Stock Exchange on January 29, 2014. The stock abbreviation: NSFOCUS, stock code: 300369.
Xinjiang Xiling Information Technology Co., Ltd. ("Xi Ling Information") focuses on the use of new technologies and new methods such as big data, cloud computing, Internet of Things, artificial intelligence, and provides practical applications in the field of public security.
The company was founded in 1999 and listed on the Shenzhen Stock Exchange in January 2017 (SZ.300588), becoming a public-sector enterprise. As a practical application expert in the field of public safety, Xiling Information adheres to the development strategy of “Practical Application + AIâ€. It has 15 branches in China and after-sales service stations all over the country, covering Xinjiang, Shanghai, Beijing, Guangdong, Shaanxi, More than 20 key provinces and cities in Zhejiang, Guizhou and Inner Mongolia. Among them, Shanghai is a technology management center, maintaining the eastern vision and technology height; Xi'an is a research and development center, using the advantages of Xi'an universities and IT enterprises to maintain talent advantage; Beijing is the product and solution center, maintaining communication with the service industry center And communication; Xinjiang is the headquarters and industrial base, focusing on the overall goal of social stability and long-term stability in Xinjiang, with Xinjiang as the "main battlefield", focusing on smart security.
Jiangsu Hengtong Optoelectronics Co., Ltd. is one of the core enterprises of Hengtong Group Co., Ltd. It is a national key high-tech enterprise specializing in R&D and production of optical fiber cables, optical rods, various optical components and optical access equipment. The company covers an area of ​​15 It has 10,000 square meters and employs 785 people. In 2008, the sales volume of optical cable was about 7 million core kilometers, and the market share reached 18%. The production and sales volume has ranked second in China for many years.
Hengtong Optoelectronics specializes in the field of optical fiber communication and power transmission, and builds a complete industrial chain and independent core technology of optical fiber communication and quantum communication, and enters into high-end products and new fields such as ocean engineering, quantum security communication, big data, and expands new strategic space. “Product + Operation + Service†has the advantage of full value chain and is committed to building a full value chain integrated service provider. It has set up R&D industrial bases in 10 provinces and cities and 6 overseas countries. It is the largest system integrator and network service provider in China's fiber optic network and power grid. It ranks among the top 500 Chinese enterprises, the top 100 Chinese enterprises, and the global optical fiber communication industry. Top 3 strong.
Founded in 1993, Zhengtong Electronics has developed into more than 1,400 people with a registered capital of 209.832 million yuan and a market capitalization of over 2 billion yuan. It has established more than 20 branches nationwide and more than 90 years. High-tech enterprise group in the office.
The company has a group of high-quality engineering and scientific research personnel, more than 70% have more than 5 years of financial and industry self-service system technology development and project management experience, can independently undertake core technology research and development and production.
The electrolyte material inside the electrolytic capacitor, which has charge storage, is divided into positive and negative polarity, similar to the battery, and cannot be connected backwards.A metal substrate having an oxide film attached to a positive electrode and a negative electrode connected to an electrolyte (solid and non-solid) through a metal plate.
Nonpolar (dual polarity) electrolytic capacitor adopts double oxide film structure, similar to the two polar electrolytic capacitor after two connected to the cathode, the two electrodes of two metal plates respectively (both with oxide film), two groups of oxide film as the electrolyte in the middle.Polar electrolytic capacitors usually play the role of power filter, decoupling (like u), signal coupling, time constant setting and dc isolation in power circuit, medium frequency and low frequency circuit.Non-polar electrolytic capacitors are usually used in audio frequency divider circuit, television S correction circuit and starting circuit of single-phase motor.
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