The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Basin-type insulators are major insulating component and the conductive supporting structure of GIS(Gas Insulated Switchgear) and GIL(Gas-insulated Metal-enclosed Transmission Line), and have significant influence on the performance and reliability of the equipment. Many studies focused on the mechanical strength and environmental adaptability since the application of basin-type insulator. The simulation...
Porcelain post insulators are widely used in power equipment as insulation-supporting structure. The current standard has clear requirement for the overall strength of porcelain post insulators; however, the operation and maintenance data of various operating conditions show that shed damage is a major failure type of porcelain post insulators. At present, strength verification of cantilever beam...
The industry's first 10nm low power high performance mobile SoC has been successfully ramped in production. Thanks to a thorough design-technology co-development, 10nm SoC is 16% faster, 37% smaller, and 30% lower power than its 14nm predecessor. The latest SoC features a gigabit class modem and is set to advance AR/VR, AJ, machine learning, and computing. 10nm FinFet technology scaling challenges...
A sapphire output window is designed for 108GHz folded waveguide traveling-wave tube (FW-TWT). The voltage standing wave ratio (VSWR) is calculated using CST Microwave Studio (MWS). The transmission modes in the window are analyzed. Thermal analysis of the output window using ANSYS package is presented. With different power losses in the window, temperature, total deformation and equivalent stress...
EAP is one of the most effective prevention mechanisms to solve the staffs' life and health problems in work, but also can effectively help managers to reduce employees' turnover intention. We are engaged in the empirical study based on enterprise employees in this paper. The results show: (1) EAPs play a negative role on turnover intention; (2) work-family conflict plays a positive role on turnover...
This paper focuses on the performance of IPM (Intelligent Power Module) under power cycling test which is simulated by a FEA (Finite Element Analysis) method. Through the method of control variables some key parameters about the module's thermal and structure properties can be obtained. The key parameters in the calculation include power dissipation of silicon chip, cycle period, different materials...
As the major unit of the electrical energy transformations device, IGBT (Insulated Gate Bipolar Transistor) determines the lifetime of the power device immediately. IGBT module is normally made up of chip, DBC (Direct Bonded Copper), substrate and bonding wire, Due to the different CTE(Coefficient of Thermal Expansion), thermal stress occurs when IGBT module works. which leads to device failure. In...
As the major unit of the electrical energy transformations device, IGBT (Insulated Gate Bipolar Transistor) determines the lifetime of the power device immediately. IGBT module is normally made up of chip, DBC (Direct Bonded Copper), substrate and bonding wire, Due to the different CTE(Coefficient of Thermal Expansion), thermal stress occurs when IGBT module works. which leads to device failure. In...
This paper focuses on the performance of IPM (Intelligent Power Module) under power cycling test which is simulated by a FEA (Finite Element Analysis) method. Through the method of control variables some key parameters about the module's thermal and structure properties can be obtained. The key parameters in the calculation include power dissipation of silicon chip, cycle period, different materials...
The occupational health area is developing models with a variety of methods to address and prevent job stress at the organization-level. A review of literature on employee assistance program (EAP) was conducted to explore relevant methods from its perspective. Result reveals that EAP is a potential good partner in the efforts to prevent Job stress at organization-level.
Contradiction of threshold voltage shift window and endurance severely restricts the application of silicon nanocrystals (Si-NCs). Pre-cycling with higher program/erase (P/E) voltages greatly improves the endurance performance. Baked at 150°C, decreases of stored charges at programmed states have a similar trend, which proves the optimized method does not bring more traps than normal P/E cycling.
Employee Assistance Programs (EAPs) are free, voluntary benefit which plan to help employees and their families cope with everyday problems. EAPs provide a wide range of services including short-term counseling, crisis intervention, occupational mental health and referrals. Since their rise approximate fifty years ago, EAPs have undergone fundamental changes. They have extended range and deepened...
NBTI reliability is becoming increasingly important as the CMOS technology scaled down to nanometer regime. It's necessary to find out approaches to measure the NBTI degradation easy and quickly. In this paper, an on-chip NBTI measurement monitor circuit is presented with purpose of monitor reliability and provide advance warning signs of failure for the chip.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.