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Down syndrome (DS) is a genetic disorder with genome dosage imbalances and micro-duplications of human chromosome 21. It is usually associated with a group of serious diseases, including intellectual disabilities, cardiac diseases, physical abnormalities, and other abnormalities. Currently, since there is no cure for human DS, screening and early detection have become the most efficient way for DS...
Hi-C technique is an important tool for the study of 3D genome organization. In the past few years, we have seen an explosion of Hi-C data in a variety of cell/tissue types. While these publicly available data presents an unprecedented opportunity to interrogate chromosomal architecture, how to quantitatively compare Hi-C data from different tissues and identify tissue-specific chromatin interactions...
According to the noise and overlapping characteristics of agricultural irrigation water quality monitoring data for the comprehensive evaluation may bring about the boundary fuzzy problem. This paper proposes an improved Genetic Algorithm (GA) to avoid premature convergence, the global optimal solution of the function of the Projection Pursuit (PP) function is used as the comprehensive evaluation...
The conventional pulse width modulation (PWM) modes for braking operation in Brushless DC motor may cause diode freewheeling in inactive phase during normal conduction period which will aggravate torque ripple. In this paper, a novel braking PWM modulation mode named PWM_OFF_PWM is proposed to eliminate the diode freewheeling. The performance of the proposed PWM_OFF_PWM mode on diode freewheeling...
Off-highway dump truck contains amounts of potential energy and kinetic energy. During the braking process, these two parts are consumed in the form of heat on the braking resistance, and the energy consumption will be about 24 percent of total energy consumption of the Truck. Hence, it is necessary to recover the braking energy. This paper, aiming at the characteristics of electric drive system in...
The performance of fingerprint based indoor localization techniques is significantly degraded by environmental dynamics especially when devices such as Wi-Fi access points (APs), which are used to build fingerprint database, are densely deployed. The primary reason is that the plug-and-play feature of these devices would render the fingerprints in the database invalid. Worsestill, the time-varying...
Filtering recommendation system is always key and hot point in electronic commerce research; to obtain recommendation result with high accuracy, performance, universality and strong adaptation, improve recommended efficiency and veracity of collaborative filtering recommendation system and provide more personalized recommendation service for users, a kind of collaborative filtering recommendation...
Image resolution enhancement for shallow buried small targets is a meaningful step in holographic subsurface penetrating (HSR) imaging process, due to the fact that image results are easily affected by the complex underground environment and the follow-up high-level vision task is hindered. In this paper, we employ super-resolution convolutional neural network (SRCNN) in HSR image resolution enhancement...
Stock market prediction has attracted a lot of attention from both business and academia. In this paper, we implement a model based on Recurrent Neural Networks (RNN) with Gated Recurrent Units (GRU) to predict the stock volatility in the Chinese stock market. We also propose many price related features which are used as inputs for our model. Apart from that, we carefully select official accounts...
Stand-alone microgrid system consist of hybrid wind/PV/diesel/storage is one of the effective approaches to solve the problem for future island power supply while plan and design are one of the core technical systems of it. According to operation requirements of the island stand-alone microgrid and the characteristics of distributed power supply as well as the optimization demand of microgrid capacity,...
The solar ship, that is, a ship utilizing a solar photovoltaic system as the auxiliary power system, is an important green-ship technology for the shipbuilding industry. In the conventional sense, the optimum route is defined as the voyage route that ensures the safety, comfort, and low energy consumption. And for the solar ship, increasing the received solar radiation level of the PV system is helpful...
With the development of the economy, the requirement of energy saving and emission reduction of the green shipping industry is becoming higher and higher. Application of photovoltaic power generation is important to reduce the pollution and emissions from ships. The application of photovoltaic system on the ship is still in the development stage, so there are still many problems worth studying. In...
In order to reduce the low-order torque ripple of the permanent magnet synchronous motor, the method of suppressing pulsating torque by suppressing low harmonics of stator current is adopted. So, a harmonic suppression model based on harmonic injection method is established to suppressing low harmonics. But, the large amount of calculation, making the result of calculation is difficult to follow the...
This paper presents an evaluation of transient electromagnetic phenomena inside lightning protection systems (LPS) model of truss bridge resulting from direct lightning strikes. The simulation model is base on the coupled transmission line network in the frequency domain combined with the Fourier transform technique, which is employed to evaluate the electromagnetic transient surge current distribution...
With more HVDC inverters are located in close proximity, the complicated interaction between each inverter is inevitable. Besides the electrical topology of AC grid connected with inverters, the regulators of DC systems also play a very important role during the dynamic procedure. The conventional index of MIIF presented by CIGRE lacks the consideration of dynamic control in HVDC systems. In this...
Economic dispatch (ED) with non-convex objectives, i.e., valve-point effects (VPE) and multiple fuel options (MFO), and constraints, such as prohibited operating zones (POZ), power balance, generation limits, and ramp rates, poses difficulties in modern large scale power systems, and the existing methods lack efficiency for the task. This paper addresses such deficiencies and proposes an efficient...
Realtime simulation on organizational behaviors is very important for detection of group attacks in cyber situational awareness. Previous work on the modeling and simulation of organizational behaviors is successful in top-down approach centering on certain organizational behaviors. However, these models are inefficient for realtime simulation on unknown organizational behaviors. To address this issue,...
In order to improve the electric car battery safety early warning ability and decrease the safe accident of electric vehicle charging, the electric vehicle charging safety factors are analyzed, the security early warning index selection ways and methods are studied, and a security early warning evaluation index system is set, the evaluation method of weight for safety index is discussed. Besides,...
Future 5G network provides network slices for applications of different areas on the same physical network. Low-latency is the most key indicators of demand for the slices. How to establish the low-latency network slices is an essential question. This article proposes a mapping algorithm for low-latency network slices based on linear programming. Firstly, this problem can be defined as a linear programming...
Change detection is a hot issue and is of great significance in remote sensing. The logarithm operation is a valid way to reduce the influence of multiplicative noise in the Synthetic Aperture Radar (SAR) image. However, changed areas with high gray level values will be weakened due to the nature of the logarithmic function. In this paper, a SAR image change detection framework based on visual attention...
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