<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> Land surface temperature (LST) and land emissivity (LSE) are two key parameters in numerous environmental studies. In this paper, a stepwise refining separation (SRTES) algorithm is proposed based on the analysis of relationship between self-emission atmospheric downward spectral radiance narrow region. The SRTES utilizes residue calculated as criterion adopts method to determine both at location...

In this paper, we consider the problem how to solve kernel‐based bidirectional reflectance distribution function (BRDF) models for retrieval of land surface albedos. The above is an ill‐posed inverse problem. We will employ a new regularization technique alleviate ill‐posedness. Tikhonov has been discussed BRDF model inversion, however, much study be done before applying it in practice (Wang et al., 2007). thoroughly investigate method, and propose discrepancy method posteriori choice...

Tailings ponds are a major hazard, and ranked 18th in the risk assessment of world accident hazards. The saturation line height is one most important factors that affects safety tailings ponds. Due to extremely complicated seepage boundary conditions ponds, precise calculation method urgently needed for predicting lines. Therefore, dynamic model should be investigated evaluate potential dam breakage. In this paper, based on an analysis various regions, we use long short-term memory (LSTM)...

Spectrally selective thermal emitters with narrow bandwidth and high temperature stability are of great interest for a variety applications in the mid-infrared region, ranging from imaging infrared sensing to high-temperature thermophotovoltaics. Herein, lithography-free, wafer-scale, aperiodic mid-wave narrowband emitter is proposed optimized by inverse design. Experimental results show that fabricated prototype exhibits emissivity peak 90% around 3.82 μm up 1,200 K. Numerical simulation...

In this letter, an endmember extraction approach based on adaptive cuckoo search (ACS) algorithm (ACSEE) is proposed for hyperspectral remote sensing imagery. the algorithm, problem of transformed into combinatorial optimization candidate endmembers. The effectiveness demonstrated by its good balance between exploitation Lévy flights and random walk, which leads to effectively explore solution space locate potential solutions avoid falling local optima. Furthermore, improve convergence...

Abstract The ability to actively control broadband light absorption and reflection ranging from deep‐ultraviolet (DUV) near‐infrared (NIR), is crucial for various optical optoelectronic applications. Herein, a novel type of ultrathin, lithography‐free, aperiodic thin‐film metamaterial coatings (metacoatings) inverse‐designed DUV NIR (190–1700 nm), which composed series deeply subwavelength tungsten oxide layers with graded refractive index profiles (by varying the deposited Ar gas pressures...

The speed and accuracy of a hierarchical SVM (H-SVM) depend on its tree structure. To achieve high performance, more separable classes should be separated at the upper nodes decision tree. Because separates feature space determined by kernel function, separability in considered. In this paper, measure based support vector data description is proposed. Based measure, we present two kinds H-SVM, binary k-tree SVM, trees which are constructed with bottom-up agglomerative clustering algorithms...

The Nano-ZrO2 reinforced AZ31 alloy composites were fabricated by friction stir processing (FSP) with three multi-pass and high rotation speed. AZ31/2.14 vol% ZrO2, AZ31/4.29 ZrO2 AZ31/6.43 designed. fine microstructure uniform dispersion of particles observed in the AZ31/ZrO2 composites. excellent interfacial bonding was between Mg matrix ZrO2. hardness tensile properties enhanced after cumulative FSP passes. This attributed to grain refinement strengthening effects AZ31/ composite...

In order to solve the interception problem of escaping targets under environmental interference and inaccurate target perception, this paper introduces guidance algorithm a Kalman filter predict trajectory targets. make USV pursuit disturbance in time-varying real marine environment, observer is proposed estimate external model uncertainty. The simulation pursuit–evasion results shows that designed enables pursuer intercept time-varying, disturbed environment. Both experimental are provided...

In the TD-LTE system, because handover parameters are not reasonable or optimized, UE performs between target and source eNodeBs repeatedly, such as executes from cell A to B, then quickly B C. order avoid this kind of failures, paper proposes an optimized process, elaborates signaling flows on side in details, uses TTCN simulation tool, RRC layer object other layers environment simulate process. Through simulation, we can confirm consistency correctness designed

A continuous masonry wall supported on an RC frame operates as a transfer storey in building with the at its foot. It is necessary to study earthquake-resistant behaviour and design method. In this paper, pseudo-static tests of seven 1/2 scale model specimens have been conducted, failure mechanism hysteretic under combined actions vertical cyclic horizontal loads observed. Based maximum-principal-stress criterion, formulas for lateral load-carrying capacity developed. The calculated values...

Transparent heat mirrors have been attracting a great deal of interest in the last few decades due to their broad applications, which range from solar thermal convection energy-saving. Here, we present flexible Polyethylene terephthalate/Ag-doped Indium tin oxide/Polydimethylsiloxane (PAIP) thin film that exhibits high transmittance visible and low emissivity infrared region. Experimental results show temperature sample can be as 108 °C, is ~23 °C higher than blackbody control under same...

Fast catamaran oscillates in shortwave sea conditions due to its low length beam ratio and relatively light weight.T-foils or interceptors are effective stabilizers for alleviating the pitch heave motions of fast craft.This work designs a motion decoupling combined control system utilizing 2 T-foils interceptors, which can not only longitudinal motion, but also alleviate roll catamaran.Numerical simulation results show that satisfactorily improve seakeeping performance catamaran.

Demodulation reference signal plays a very important role in channel estimation and equalization the receiver within LTE system. At beginning, this paper provides various formulas that generate demodulation (DMRS) physical uplink Shared (PUSCH), then presents design flow chart for programming realization. After that, Using TI(Texas Instruments corporation) TMS320C6455 DSP, it generates DMRS PUSCH by software programming, using C assembly language. Finally, specifically describes realization...

This paper takes the example of industrial architectural heritage in Dalian to explore design scheme generation methods based on generative artificial intelligence (AIGC). The study compares effects three different tools using Analytic Hierarchy Process (AHP). It first establishes key indicator weights for renovation heritage, with criterion layer as follows: building 0.230, environmental landscape 0.223, economic benefits 0.190, and socio-cultural value 0.356. Among goal weights, highest...

Abstract Research on the neuropathological mechanisms underlying minor depression (MD), particularly in individuals with a history of recurrent depressive episodes, is very limited. This study focuses abnormality processing real-life emotional stimuli among MD. Thirty-two MD and 31 normal controls (NC) were recruited underwent comprehensive clinical interview, cognitive assessment, magnetic resonance imaging (MRI) scans. During functional MRI scanning, subjects watched positive, negative,...

A new criteria for kernels' selection in Ambrals model is provided. Instead of using "least square" methods, variance" white albedo which derived from Tarantola's information theory used. Several tests showed had many advantages. First, it less sensitive to noise. Second, operated well with a small sample size. Third, the sampling position.