For hydrocarbon-fueled turbojet engines with a precooling technology, the precooling technology with a low-temperature endothermic fuel is a great potential way to solve the problem of sharp reduction of the specific impulse caused by the insufficient heat sink of the hydrocarbon fuel. To study...

A hypersonic vehicle, its flight state is changeable, which is often related to the heat load change of chamber wall. Thermal and flow response characteristics during flight state change are investigated in this research experimentally by utilizing the electrically heat experiment system. It is...

R744 is the most competitive, and R744 is the most ideal when flammability and toxicity are strictly limited. There are some problems in the current R744 heating system, for example the pressure at the heat release side is often more than 10.0MPa. High operating pressure brings high cost....

Hydrocarbon-fueled scramjet is one of the most promising air-breathing propulsion systems for hypersonic flight, but the wall thermal protection issue strictly limits its maximum flight Mach number. This study presents a fuel indirect cooling based thermal management system (TMS) scheme, in...

Currently, China's expansionary fiscal policy and tight monetary policy have formed an opposing policy mix. This is due to the imbalanced macro-economy, which suffers from the pressures of inflation and slow growth. In response to economic changes, China adjusted its monetary policy as the real...

1: Problem Orientation: Prominent Problems Facing China's Fiscal and Taxation System -- 2: Goal Lead: the General Idea, Basic Goal and Path of Fiscal and Taxation System Reform -- 3: Practical Operation: Build A Modern Fiscal and Taxation System Suitable for the Modernization of National...