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A 17 GHz direct digital synthesizer in a InP DHBT technology

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2021; 46 (3)

Direct digital synthesizer (DDS) is an essential part of the multi-band digital phased array radar system due to its broad frequency generation abilit......

Experimental investigation about effect of double-spark plug ignition on cyclic variation and knocking for SI engine

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2021; 46 (2)

In order to analyze the effect of the double-spark plug ignition (DSI) on the heat release rate, cyclic variation in combustion and engine knocking, f......

Numerical investigation on the operating characteristics of the cylinder liners of a turbocharged diesel engine

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2021; 46 (3)

The main operating characteristics of cylinder liner include the liner deformation and coolant flow. The insufficient coolant flow can lead to greater......

Design and simulation of a novel continuously variable-speed drivetrain for wind turbine

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2021; 46 (3)

This paper presents a novel hydrodynamic pressure transmission (HPT) for continuously variable drive train in wind turbine applications. The HPT mainl......

Effects of stiffener geometric parameters on the buckling and post-buckling response of composite I-stiffened panels

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2021; 46 (1)

The buckling instability and post-buckling carrying capacity are major concerns in the engineering design of composite stiffened panels and are influe......

Vibration analysis of the steel shell flow tube in a vertical axial pumping station based on fluid-structure interaction (FSI) method

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2021; 46 (1)

Design scheme of steel shell flow tube in the inflow and outflow passage of the vertical axial pumping stations takes advantages of conventional concr......

Sheltering effect of vertical twin tunnel excavation for different horizontal distances on the ground and pipelines

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2021; 46 (1)

Subway tunnels are often designed as twin or multiline overlapping tunnels. The sheltering effect from the upper tunnel on the excavation of the lower......

Corrosion behavior of reinforcing bar in magnesium phosphate cement based on polarization curve

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2020; 45 (1)

Apart from focusing on the analysis of the characteristics of reinforcing bars during corrosion, such as open circuit potential and polarization, the ......

In-situ stress partition and its implication on coalbed methane occurrence in the basin-mountain transition zone: a case study of the Pingdingshan coalfield, China

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2020; 45 (1)

The basin-mountain transition zone presents complex geologic structures and non-uniformly distributed in-situ stress. Studying the spatial distributio......

Microstructure evolution of interface between magnesium ammonium phosphate cement and Portland cement under sulphate corrosion environment

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2020; 45 (1)

This paper reports the test results on the bonding strength between magnesium ammonium phosphate cement and Portland cement. The bonded specimens were......

Statistical modeling of rubberized concrete beams confined by FRP using RSM technique

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2020; 45 (1)

The use of rubber in concrete has been practiced in the engineering community for several years. However, the poor mechanical properties of rubberized......

Theoretical and experimental study on one dimensional fracture grouting in soil medium

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2020; 45 (1)

In this study, a theoretical model of one dimensional fracture grouting in soil is proposed based on fluid mechanics and force analysis during grout f......

Fault-tolerant topology with lifetime optimization for underwater wireless sensor networks

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2020; 45 (1)

Recently, underwater wireless sensor networks were proposed to explore underwater environment for scientific, commercial and military purposes. Howeve......

Research on optimal values of contrast revealing coefficient in road tunnel lighting

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2020; 45 (1)

Based on the perceived contrast method in road tunnel lighting, Commission Internationale de l ' Eclairage (CIE) defined the contrast revealing coeffi......

Target detection method in short coherent integration time for sky wave over-the-horizon radar

期刊: SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES, 2020; 45 (1)

In order to reduce the Doppler spread effect caused by ionospheric disturbance, sky wave over-the-horizon radar often detects ships in a short coheren......

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