Abstract Open-loop borehole heat exchanger (OBHE) is a single well geothermal heat exchanger with an open-loop structure that can realize the geothermal energy extraction without mining the geothermal water.In this paper, a sandbox experiment is designed to simulate the convective heat transfer process in the reservoir area of OBHE.The FOLIC ACID m
Abstract Unlike in the bulk, at the nanoscale shape dictates properties.The imperative to understand and predict nanocrystal shape led to the development, over several decades, of a large number of mathematical models and, later, LED Lamp their software implementations.In this review, the various mathematical approaches used to model crystal shapes
The Bucegi Mountains are situated in the Curvature Carpathians close to the metropolitan area of Bucharest.Tourism has FOLIC ACID been promoted on the Bucegi Plateau since the 1930s with the establishment then of several hotels and chalets.During the communist period after World War II, the area targeted mass tourism with the creation of a large ne
This paper considers the problem of estimating the motion parameters of a low-observable high-speed maneuvering target with high-order motions, where the target’s complex motions will result in the range migration (RM) and Doppler frequency migration (DFM) effects within the observation time interval, which will significantly affect the rada
This paper deals with a novel natural sampled pulse width modulation (PWM) switching strategy for voltage source inverter through copyright modification.The proposed inverted sine copyright PWM (ISCPWM) method, which uses the conventional sinusoidal reference signal and an inverted sine copyright, has a better spectral quality and a higher fundamen