As an intracellular form of a bacteriophage in the bacterial host genome, prophage usually integrates into DNA with high specificity and contributes to horizontal gene transfer (HGT). With exponentially increasing number microbial sequences uncovered genomic or metagenomics studies, there is massive demand for tool that capable fast accurate identification prophages. Here, we introduce DBSCAN-SWA, command line software developed predict regions genomes. DBSCAN-SWA runs faster than any...

During deicing operations on transmission lines, the cutting forces generated by milling cutter of a robot exert significant reaction body. Excessive can compromise robot’s locomotion stability and performance. This study introduces an optimization traditional straight-plate designing two new types cutters: oblique-cut straight-cut cutters. The effects geometry, speed, feed rate were systematically investigated using finite element simulations. A test platform was constructed to validate...

The environmental control system (ECS) is one of the most important systems in aircraft used to regulate pressure, temperature and humidity air cabin. This study investigates influences different architectures on thermal performance network structure ECS. refrigeration pressurization performances ECS with four are analyzed compared by endoreversible thermodynamic analysis method, their external internal responses have also been discussed. results show that connection modes heat exchanger...

A Reverse-Brayton cycle represented by the B787 electrical driven environmental control system is used as analysis object, including thermodynamic process of two-stage compression, intercooling, and regeneration. An analytical expression for performance derived based on endoreversible model (ETM). Combined with a genetic algorithm, an ETM-based optimization approach (ETM-OA) proposed. Using this method, it found that coefficient increased 34.1 % 48.4 under two typical flight conditions,...

Compact air - heat exchanger (CAAHX) is a key component of the airborne environmental control system (ECS) for commercial airliners. In order to predict performance ECS during flight conditions, computational model descript CAAHX needed. This study presents common transfer engineering applications based on η-NTU relationship and structural parameters CAAHX. Based experiments, models two CAAHXs are established. Two kinds values CAAHX's outlet temperature which calculated by measured in test...

Icon design is an important part of UI design, and a task that designers often encounter. During the process, it to highlight function icons themselves avoid excessive similarity with similar icons, i.e., have certain degree innovation uniqueness. With rapid development deep learning technology, generative adversarial networks (GANs) can be used assist in designing updating icons. In this paper, we construct icon dataset consisting 8 categories, introduce state-of-the-art research training...

Rejuvenation heat treatment is an important technology to restore damaged microstructure and properties of superalloys. This investigation conducted figure out the effect rejuvenation on The micro-hardness K002 DZ125 superalloys after different procedures were evaluated. results show that heating temperature mainly affects solubility carbides γ′ phases, while cooling rate has morphology secondary phase. Owing transition during work process, little amount in alloys. Suggestions for are proposed.

To recover the power from cabin's exhaust, two schemes are proposed and thermodynamic parameters components' performance of analysed in this study. Based on take-off gross weight method, differences among state-of-the-art scheme compared. Results show that compared to value scheme, fuel penalty loss I adds 24.4 kg II increases 29.1 kg. In consideration compression ratio electrical driven compressor, for is 1.13 2.24. With respect 2.8, there about 60% 21% reduction respectively newly-proposed...

Abstract Based on the equivalent heat transfer capacity, a closed simulation ground-test method of ram air is proposed, it can provide air's test condition for deriving performance commercial airliners’ aircraft environmental control system (ECS). Analyzed results show that proposed simulate different temperatures and pressures at range 0∼10 km flight altitudes under compressor pressure ratio 1.2 turbine expansion 5. Temperatures vary from -17.6 ∼ 40°C 40∼101 kPa, respectively. In meantime,...

Air cycle systems (ACSs) are primarily used in aircraft environmental control (ECSs) to provide a suitable cabin temperature and pressure environment for passengers avionics. It comprises heat exchangers, compressors, turbines, water separators, various other components that interconnected form an information-transmission network. Traditional research on ACSs has focused their thermal performance. This study abstracted into network graphs based characteristics, determined the weight of each...

Nanostructured Al alloy powder was prepared by ball milling of a mixture Fe-based metallic glass (FMG) and 2024-Al powder. Microstructural evolution mechanical properties the milled composite were examined X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM) micro-hardness test. It is revealed that after 24h milling, grain size reduced to about 30nm, FMG particles uniformly distributed throughout matrix. The test indicated significantly improved.