Accurate monitoring of soil salinization plays a key role in the ecological security and sustainable agricultural development arid regions. As branch artificial intelligence, machine learning acquires new knowledge through self-learning continuously improves its own performance. The purpose this study is to combine Sentinel-2 Multispectral Imager (MSI) data MSI-derived covariates with measured salinity apply three algorithms modeling estimate map sample area. According convenient...

The construction of atropisomers with 1,2-diaxes, while maintaining high enantiocontrol, presents a significant challenge due to the dynamic nature steric hindrance at ortho-aryl substituents. Although various catalytic asymmetric methods have been developed for accessing axially chiral arylpyrroles, synthesis arylpyrroles 1,2-diaxes in manner has remained rare. Herein, authors report diverse and C-C C-N axes through copper-catalysed asymmetirc [4 + 1] annulation yne-allylic esters...

Carotenoids play a crucial role in the photosynthesis process plants. Estimating and modeling carotenoid content Populus pruinosa leaves via high-spectrum technology is highly important for health status monitoring. This study involved acquiring spectral reflectance of at different times, followed by smoothing data with Savitzky—Golay filter, then using methods such as first derivative (FD), continuous wavelet transform (CWT), first-order combined (CWT+FD), creating three transformation...

Hyperspectral remote sensing technology can quickly obtain above-ground biomass (AGB) information of cotton, playing an important role in realizing accurate management for cotton cultivation. Using Tahe-2 as the research object, nitrogen application rates and irrigation amounts were set to 0 (N0), 100 (N1), 150 (N2), 200 (N3), 250 (N4) kg ha− 1 4500 (W1), 6000 (W2), 7500 (W3) m³ under coupled conditions water nitrogen. Through correlation analysis between AGB canopy spectral reflectance,...

In this paper, we present two hashing based techniques for fast palmprint identification. We first propose three properties required by a hash function and then introduce our identification method on orientation pattern (OP) hashing. give the definition of OP demonstrate that it meets all requirements function, thus, would be appropriate second principal (POP) Because POPs are constructed using more stable features, POP can find target template quickly thus causing earlier termination...

With cloud computing being integrated with wireless body area networks, the digital ecosystem called cloud-assisted WBAN was proposed. In medical systems, integrity of stored data is important. Recently, based on certificateless public key cryptography, He et al. proposed a auditing scheme for WBANs. But al.’s not privacy preserving. After many checks some same blocks, auditor can derive these blocks. this paper, we propose preserving proof phase scheme, information protected from directly...

Organic luminogens with through-space charge transfer (TSCT) were obtained through connecting donor and acceptor non-conjugated alkyl chains. The intensity of TSCT could be mapped by the corresponding room temperature phosphorescence (RTP) effect.

The noncovalent interactions between aromatic moieties play a key role for organic luminescence materials, especially π-π interactions. Pyrene often serves as common luminogen with the formation of discrete dimers...

Citrus industry usually encounters a series of adverse environment factors. Polyamines have been shown to play key roles in plant response wide range abiotic stresses. Herein efforts were made identify the change free polyamines and expressions two important polyamine biosynthetic genes, arginine decarboxylase (ADC) S-adenosylmethionine (SAMDC), Newhall navel orange (Citrus sinensis) embryogenic callus under high salinity, low temperature. Our results showed three most widely present...

The study of chlorophyll fluorescence parameters is very important for understanding plant photosynthesis. Monitoring cotton via spectral technology can aid in the photosynthesis, growth, and stress fields real time provide support growth regulation planting management. In this study, plot experiments with different water treatments were set up to obtain reflectance canopy, maximum photochemical quantum yield (Fv/Fm), quenching coefficient (qP) leaves at stages. Support vector machine...

With the development of Internet, cloud computing has emerged to provide service data users. But, it is necessary for an auditor on behalf users check integrity stored in cloud. The server also must ensure privacy data. In a usual public scheme, linear combination blocks needed verification. after times auditing same blocks, based collected combinations, might derive these blocks. Recently, number schemes with privacy‐preserving are proposed. blinded combinations authors believed that cannot...

Chlorophylls are the most important pigments for photosynthesis and related to phenology health status of plants. Monitoring chlorophyll content density Populus euphratica leaves via remote sensing technology has great significance restoring reconstructing damaged desert ecosystems. In this study, were collected in public welfare forest reserve Awati county, Xinjiang, China. Spectral variables obtained, simple linear regression multiple models built predict leaf density. The results showed...

With rapid development of information and communication technologies purchasing digital content through the Internet has been greatly increased. Therefore, secure fair electronic payment systems are important issue. To reduce system computational, storage costs in many existing schemes, Yang et al. recently proposed a novel based on authenticated encryption technology. But, Chaudhry showed that al.'s is vulnerable to impersonation attack. Furthermore, improved system. this paper we point...

It is normal that the distance between palm and camera lens different in contactless recognition systems. Most of prior work has only emphasized on issues preprocessing, feature extraction match. But affect due to image very few concerned. This paper presents relationship palmvein performance from clarity ROI(Region Interest), structural difference match results based low-resolution images. Experimental show that, differences structure are larger while becomes large, also which will some...

A palmprint identification system recognizes a query image by searching for its nearest neighbor from among all the templates in database. When applied on large-scale system, it is often necessary to speed up nearest-neighbor process. In this paper, viewing feature as high-dimension binary vector, we present method using orientation pattern hashing. We propose three properties required hash function and demonstrate that has of these properties. Under some simple assumptions give parameter...

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Soil salinization is a major obstacle to land productivity, crop yield and quality in arid areas directly affects food security. profile salt data are key for accurately determining irrigation volumes. To explore the potential using Landsat 8 time-series monitor soil salinization, 172 images from 2013 2019 were obtained Alar Reclamation Area of Xinjiang, northwest China. The multiyear extreme dataset was synthesized annual maximum or minimum values 16 vegetation indices, which combined with...

Summary LIM domain proteins are important regulators of the growth, determination and differentiation cells. Four‐and‐a‐half LIM‐only protein 3 (FHL3) is a type that contains four tandemly repeated motifs with an N‐terminal single zinc finger (half motif). In this study, we have determined complete coding sequence pig FHL3 which encodes 280 amino acid protein. The region gene organized in five exons spans approximately 2.1‐kb genomic region. Comparative sequencing six breeds revealed three...