• Size dependent of the effective conductivity of composite with imperfect interfacesSize dependent of the effective conductivity of composite with imperfect interfaces

    Abstract. Based on the circle assemblage model, the effective properties of the inclusion with imperfect interface are derived. The equivalent inclusion is incorporated in the Fourier Transform algorithm to determine the effective conductivity of the composite with lowly conducting or highly conducting interface. The size effect is considered for...

    pdf9 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 314 | Lượt tải: 0

  • Ammonia gas sensing properties at low temperature of graphene oxide/tungsten oxide nanobricks nanocompositesAmmonia gas sensing properties at low temperature of graphene oxide/tungsten oxide nanobricks nanocomposites

    Abstract. Nanocomposites of graphene oxide (GO) and tungsten oxide (WO3) nanobricks were synthesized by co-dispersing graphene oxide and tungsten oxide nanobricks in bi-distilled water with different weight ratios (0.1, 0.3 and 0.5 wt.% of graphene oxide). The ammonia gas sensing properties of nanocomposites were studied at low temperatures (50,...

    pdf14 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 310 | Lượt tải: 0

  • Free vibration analysis of porous nanoplates using nurbs formulationsFree vibration analysis of porous nanoplates using nurbs formulations

    Abstract. This paper presents free vibration analysis of functionally graded (FG) porous nanoplates based on isogeometric approach. Based on a modified power-law function, material properties are given. The nonlocal elasticity is used to capture size effects. According to a combination of the Hamilton’s principle and the higher order shear defor...

    pdf11 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 325 | Lượt tải: 0

  • Stress contours in the connecting-rod under the dynamic load and the oil film’s pressure of the connecting-rod big endStress contours in the connecting-rod under the dynamic load and the oil film’s pressure of the connecting-rod big end

    Abstract. Load applied to the connecting-rod and the pressure in the lubricant oil film change the stress in the connecting-rod during the operating cycle. This problem is one of the characteristics we need to consider when studying the connecting-rod big end bearing. A specific experimental device and the connecting-rod model of photoelastic ma...

    pdf14 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 333 | Lượt tải: 0

  • A fuzzy logic controller approach for controlling heat exchanger temperatureA fuzzy logic controller approach for controlling heat exchanger temperature

    Abstract - This paper presents a fuzzy logic controller approach for controlling heat exchanger temperature. Fuzzy logic controller is an artificial intelligence-based controller. The fuzzy logic controller has been widely used for control applications in the industrial world. One of the tools used in the industrial world that requires accurate ...

    pdf8 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 359 | Lượt tải: 0

  • Harmonic analysis of 3-phase induction motor at PT. indocement tunggal prakarsaHarmonic analysis of 3-phase induction motor at PT. indocement tunggal prakarsa

    Abstract – In a developing country, the rate of electricity demand is increasing along with the increasing rate of population growth and the rate of economic development of the country. With the growing development of the use of electronic technology in power systems, more and more non-linear equipment is used in the industry. This non-linear e...

    pdf10 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 340 | Lượt tải: 0

  • Detection of optic disc centre point in retinal imageDetection of optic disc centre point in retinal image

    Abstract – Glaucoma and diabetic retinopathy (DR) are the two most common retinal related diseases occurred in the world. Glaucoma can be diagnosed by measuring optic cup to disc ratio (CDR) defined as optic cup to optic disc vertical diameter ratio of retinal fundus image. A computer based optic disc is expected to assist the ophthalmologist t...

    pdf5 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 344 | Lượt tải: 0

  • Adaptive modelling of multipath communication channels based on the least mean square algorithmAdaptive modelling of multipath communication channels based on the least mean square algorithm

    Abstract – The objective of this research is to design an adaptive model for multipaths communication channels. To evaluate the performance of the model, the authors used two indicators, namely the attainment of a minimum value of error signals in the form of interface and echo on the channel, and Filter Finite Impulse Response (FIR) has the sa...

    pdf7 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 301 | Lượt tải: 0

  • Implementation of GLCM for features extraction and selection of batik imagesImplementation of GLCM for features extraction and selection of batik images

    Abstract – Batik is a craft that has high artistic value and has been a part of Indonesian culture (especially Java) for a long time. Batik cloth in Indonesia has various types of batik textures, batik cloth colors, and batik fabric patterns that reflect the regional origins of the batik cloth. Regarding the image of batik, the texture feature i...

    pdf5 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 326 | Lượt tải: 0

  • Application of air quality index and inverse distance weighting for mapping the distribution of air pollution at several urban districts of Hanoi cityApplication of air quality index and inverse distance weighting for mapping the distribution of air pollution at several urban districts of Hanoi city

    Abstract. The air pollution level can be assessed using air quality index - AQI calculated from the concentration of some gases and particle matters which are measured at ambient air quality monitoring stations. The calculated AQI values are characterized by temporal continuity but spatial discontinuity. However, AQI values of each monitoring s...

    pdf12 trang | Chia sẻ: thanhle95 | Ngày: 17/07/2021 | Lượt xem: 323 | Lượt tải: 0