Memristor Working Condition Analysis Based on SPICE Model

Author(s):  
Zhuo Bi ◽  
Ying Zhang ◽  
Yunchuan Xu
2019 ◽  
Vol 5 (1) ◽  
pp. 35-45
Author(s):  
Markus Dwiyanto Tobi ◽  
Alimuddin Mappa

The role of the power supply device is to produce, process and distribute energy sources. Telecommunication equipment can only operate if it has continuous supply. Therefore, to maintain the continuity of the supply, a UPS (Uninterruptable Power Supply) device system is needed so that the supply to the Essential Load device will remain available so that continuity will be maintained. This research designs and proposes how a series of automatic redundant switch systems on UPS to ensure the availability of power supply for the main equipment of telecommunications systems. The Auto switch circuit is designed to have 3 (three) working stages which will trigger the relay driver as control circuit, namely the normal working condition of the contactor input K1 is present, the input condition is zero (lost), and the input condition is present. This system can automatically supply power to telecommunications equipment.


On the basis of engineering and design surveys of the building, engineering-geological and geophysical studies of the soils of the territory conducted by the article authors, as well as with due regard for the results of studies conducted on this territory by other authors, the features of the foundations, soils of their foundation and engineering-geological conditions of the territory of the Melnikov House are established. It is shown that the Melnikov house is located under complex engineering-geological conditions on the territory of high geological risk, in the zone of influence of tectonic disturbance. To the North of the area there is a zone of intersection of the observed disturbance with a larger disturbance that can have an impact on geological processes. To the North-East of the site of the Melnikov House, a sharp immersion of the roof of carbon deposits was revealed. It promotes groundwater seepage into limestone of the carbonate strata from overlying water-bearing sands and activation of processes of suffusion removal and sinkhole phenomena of the soil. The surveyed area is assessed as potentially karst-hazardous and adjacent to it from the North-East territory as karst-dangerous. In this regard any construction on the adjacent territory can provoke activation of sinkhole phenomena on the surface. The foundations of the building are basically in working condition. Existing defects can be eliminated during repair. The foundation soils mainly have sufficient bearing capacity. Areas of the base with bulk soil can be reinforced. However, when developing a project for the reconstruction of the building and its territory, it should be taken into account that the design of the Melnikov House does not provide for its operation on the loads at the formation of sinkholes.


2015 ◽  
Vol 9 (1) ◽  
pp. 135-140
Author(s):  
Dong Zhi-Ming ◽  
Guo Li-Xia ◽  
Chang Ji-Bin ◽  
Zhou Xue-Bin

Aiming to compare the cooling effect, two types of solar-powered semiconductor air-conditioning devices were designed in different structures. According to the cooling load in an experimental room, the solar panels and battery capacity were determined for the development of a test system. In the same working condition, a comparison test was carried out to examine the cooling performance. Experimental results showed that the design of dual water-cooled cooling unit presented a higher ratio of energy efficiency, with its maximum value of 1.08. By observing the experimental data of the prototype, its comparative economic evaluation results indicated that the annualized cost of solar semiconductor airconditioning was app. 2.7 times that of air-conditioning made from an ordinary compressor.


2020 ◽  
Vol 96 (3s) ◽  
pp. 680-683
Author(s):  
А.В. Нуштаев ◽  
А.Г. Потупчик

Разработаны тестовые структуры для экстракции и верификации статических и динамических параметров SPICE-моделей транзисторов. Проведена экстракция SPICE-моделей МОП-транзисторов А-типа в рамках разработки комплекта средств проектирования для технологии КНИ-180. Проведена верификация статических и динамических параметров полученных моделей транзисторов. The paper highlights test structures for the extraction and verification of static and dynamic parameters of the transistor SPICE model. The SPICE models of A-type MOS transistors for development process design kit for S0I180 technology have been extracted. Verification of static and dynamic parameters of the obtained transistor models has been carried out.


2015 ◽  
Vol 741 ◽  
pp. 133-137
Author(s):  
Xian Zhao Jia ◽  
Yong Fei Wang

To ensure wheel body of the hoisting sheave strength and stability condition. For the purpose of wheel body lightweighting. There are two schemes to reduce body weight.Reduce the spokes at the same time increase the ring stiffened plate, and reduce the spokes at the same time change the spokes width and thickness.The wheel body was established based on Pro/E 3D geometric model. Import the mesh in the Workbench of ANSYS software for finite element model. Statics analysis to select the optimized scheme. Establish a hoisting sheave wheel body under the actual working condition of widening the width - deformation - wheel weight relational table. Analysis to lightweight at the same time ensure that stiffness of wheel,then it can obtaine the optimal result.


IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 46487-46504
Author(s):  
Pengfei Hou ◽  
Hongzhong Ma ◽  
Ping Ju ◽  
Xuan Chen ◽  
Chao Zhu

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