Unified multimodal large language models (U-MLLMs) have demonstrated impressive performance in visual understanding and generation an end-to-end pipeline. Compared with generation-only (e.g., Stable Diffusion), U-MLLMs may raise new questions about bias their outputs, which can be affected by unified capabilities. This gap is particularly concerning given the under-explored risk of propagating harmful stereotypes. In this paper, we benchmark latest find that most exhibit significant...

In this study, the effects of heat transfer characteristics jet droplets impacting compressor blades during on-line washing process an aero engine are investigated. A three-dimensional transient model a droplet impinging on blade is established, effectiveness calculation formula modified, and impact numerically simulated using volume-of-fluid method. The results show that effective area increase with increasing curvature. higher temperature, average flux effectiveness. For every 10 °C rise...

The characteristics of real time operating system (RTOS) are analyzed and its advantages in design embedded computer numerical control (CNC system) highlighted, according to comparisons with general systems. In this study, RTOS μC/OS - II is introduced the hardware platform CNC based on ARM Motion Control Chip. Furthermore, software architecture constructed tasks given PRI task schedule analyzed. Lastly, an application example given.

Ni/SiO2 and SiO2-supported Ni3Ga Ni5Ga3 intermetallic compounds were prepared by the sol-gel method evaluated for hydrodeoxygenation of various phenolic at 0.1 MPa. In anisole, Ni3Ga/SiO2 was more active direct deoxygenation to benzene than corresponding catalyst impregnation as well Ni/SiO2. The anisole conversion selectivity reached 95.1% 92.5% on 300 °C WHSV 2 h−1, respectively. HDOs cresols guaiacol, still dominatingly facilitated deoxygenation, while significantly promoted C-CH3 bond cleavage.

A simple modal interferometer is proposed, to be produced by splicing a section of novel ring-core photonic crystal fiber (RPCF) and two segments single-mode fibers. Owing the effects collapsed region, ring modes in RPCF can effectively activated. This first demonstration an based on interference between modes, as opposed previously reported core or cladding modes. The length wavelength temperature strain characteristics are investigated. sensitivity increases with wavelength. Based...

Aircraft cable have the special status in aviation domain, with improvement of aircraft performance requirements, amount single wire is also increasing gradually. Demanding its and maintaining increasingly day by day. An fault diagnosis location system based on Phase Detection Frequency Domain Reflectometry (PDFDR) presented this paper, which used to diagnose locate faults, such as intermittent fault, continuous cross-connect fault. With threshold denoising method Hilbert Huang Transform,...

Heat input is a crucial factor affecting the quality in blade additive manufacturing repairing. First, moving heat source model was established, and through numerical analysis experimental comparison, optimal geometric parameters of for ultrathin repair were obtained. Second, transfer established based on model. By analyzing thermophysical properties different alloys, range calculated. calculation under inputs, optimized. Then, mathematical height established. The optimized used to solve...

The precision circle target sub-pixel centroid location is one of the key factors large space 3D coordinates measurement. In this paper, retro-reflective targets and optical used in measurement are analyzed, characteristics applied fields algorithms such as gray weighted squared which combine with bi-linear interpolation or improved cubic convolution method, discussed. influencing improving methods for also analyzed. These include resolution CCD camera, image grab noise, size targets, choice...

Currently, how to release the heat accumulated in molten pool rapidly is key factor blade repair. We analyzed problem of current cooling method additive manufacturing Based on effect, we proposed an advanced flexible multiflow path fixture for created a coupled transfer model and deduced law conjugate clamping. obtained optimal scheme paths through numerical analysis. built experimental platform tested effect prototype by experiment. The results show that compared with method, new not only...

For the cooling method in surfacing repairing, most of research focuses on based fixture structure. However, due to low thermal conductivity and ultrathin alloy blade, heat transfer speed from molten pool is slow. When transferred fixture, has solidified absorbed or segregated out some impurities. Therefore, how cool welding area directly more critical. this reason, cycle characteristics typical points blade process key are analyzed, original time calculated, two innovative methods lateral...

This paper mainly describes a fault diagnosis scheme for aircraft multibranches wiring networks. The background theory is based on the matching algorithm with theoretical reflection waveform and realistic waveform. Firstly, numerical model comprehensive database was built to create of measured network. On other hand, network can be collected by reflectometry detection system. Then, were applied detect type location in With all steps above, designed realized. Finally, network, which includes...

The active power measurement in the no-load transformer test (loss measurement) is difficult because it low factor and includes non-sinusoidal current. Then problems developing high precision data acquisition system resolutions are studied. method combining synchronous quasi-synchronous studied used. In measurement, voltage sampling current quasi-synchronous. Two analog to digital converters (ADC) corresponding used sample initiating signals of two ADCs same. hardware design also signal...

This paper made the edge reconstruction of aircraft engine. First, collected rough point cloud data by using visual measuring equipment. Then, smoothed and filtered data, took reasonable simplification, finished pre-processing data. Finally, non-uniform B-spline wavelet algorithm was used for acquisition feature blades' edge, digital model. The results proved that this method reduced modeling machining time, improved smoothness

Architecture of distributed numerical control (NC) system based on field-bus is discussed in the paper for solving problems robustness and openness coming from current integration-design method NC system. The basic framework system, nodding model, expanding structure are proposed this paper, followed by a case study, so to explore solutions improve functions complex systems.

Aiming at handling the airplane structures, this paper deals with a new sub-6 DOF asymmetrical parallel mechanism, named "TAM". The robot is modified version of SKM400. innovation systematically addressed. Both forward and inverse positions are analyzed. condition number Jacobin its mean value used to evaluate kinematic performance. It can be concluded that proposed mechanism competitive in aircraft industry.

In this paper, we report a new F-P cavity based on single mode fiber and multimode PCF. The PCF has been analyzed by the digital image processing FEM in order to obtain its effective refractive index propagation constants. Then optical characteristics of are numerical which provide theoretical basis for reverse design SMF-PCF Cavity. practice fabricating theory carried out experimental results were consistent.

The very high dispersive dual-core photonic crystal fiber is analyzed by the full-vector finite element method. The dependence of phase-matching wavelength (PMW) and full width at half-maximum (FWHM) on refractive index doped inner core, diameter air holes hole pitch demonstrated. dispersion value as large as -1427 ps/(nm km) effective mode area fundamental mode, 82.06 um 2 are obtained.