Supramolecular chirality, which arises from the nonsymmetric spatial arrangement of components in self‐assembly systems, has gained great attention owing to its relation natural biological structures and possible new functions advanced materials. During self‐assembling process, both chiral achiral are form nanostructures. Therefore, it becomes an important issue how fabricate these molecular into Furthermore, once nanostructure is obtained, will show that simple component molecule could not?...

The identification and mapping of crops are important for estimating potential harvest as well agricultural field management. Optical remote sensing is one the most attractive options because it offers vegetation indices some data have been distributed free charge. Especially, Sentinel-2A, which equipped with a multispectral sensor (MSI) blue, green, red, near-infrared-1 bands at 10 m; red edge 1 to 3, near-infrared-2, shortwave infrared 2 20 3 atmospheric (band 1, band 9, 10) 60 m, offer...

Sentinel-1A C-SAR and Sentinel-2A MultiSpectral Instrument (MSI) provide data applicable to the remote identification of crop type. In this study, six types (beans, beetroot, grass, maize, potato, winter wheat) were identified using five images one MSI image acquired during 2016 growing season. To assess potential for accurate classification with existing supervised learning models, four different approaches namely kernel-based extreme machine (KELM), multilayer feedforward neural networks,...

AbstractThe classification maps are required for the management and estimation of agricultural disaster compensation; however, those techniques have yet to be established. Some supervised learning models may allow accurate classification. In this study, Random Forest (RF) classifier regression tree (CART) were applied evaluate potential multi-temporal TerraSAR-X dual-polarimetric data, on StripMap mode, crop type. Furthermore, comparisons two algorithms polarizations carried out. study area,...

Optical remote sensing is one of the most attractive options for generating crop cover maps because it enables computation vegetation indices, which are useful assessing condition vegetation. The Sentinel-2A Multispectral Instrument (MSI), a multispectral sensor with 13 bands covering visible, near infrared and short-wave (SWIR) wavelength regions, offers vast number indices. Spectral combinations spectral measurements at different wavelengths, have been used in previous studies they...

In this paper, an Urban Light Index (ULI) is constructed to facilitate analysis and quantitative evaluation of the process urbanization expansion rate by using DMSP/OLS Nighttime Data during years from 1992 2010. A unit circle model established perform a comprehensive 34 prefecture-level cities in Northeast China. Furthermore, concept urban light space put forward. study, divided into four types: core area, transition zone between suburban areas, area fluorescent space. Proceeding temporal...

Two novel lanthanide metal–organic frameworks (Ln-MOFs), formulated as {[Ln2(L2)2(H2O)5]·3H2O}n (Nd 1 and Eu 2) has been acquired under hydrothermal conditions, in which H3L2 ligand was derived from situ decarboxylation reaction of H4L1 (H3L2 = 5-(3′,5′-dicarboxylphenyl)picolinic acid, 3-(3′,5′-dicarboxyphenyl)pyridine-2,6-dicarboxylic acid). Both compounds possess (3,4,7)-connected 3,4,7T22 topology with a schläfli symbol {43}{45·6}{48·69·84}. Compound 2 displays excellent luminescence...

Infrared data for mono-iron complexes possessing two cis-CO together with Mössbauer the enzyme and a model complex support assignment that iron centre of cluster-free hydrogenase Hmd is low-spin Fe(II).

Abstract A dual‐functional metallogel, which was based on the copper(II) complex of quinolinol‐substituted L ‐glutamide, showed both redox‐responsive and enantioselective properties; moreover, metallogels collapsed into a sol after reduction could be revived upon subsequent oxidation. The supramolecular chirality morphology also reversible changed with gel–sol transition. Furthermore, new recognition towards chiral aromatic amino acids. emission band in blue‐light region at around 393 nm...

Radix Glycyrrhiza has been used in China for thousand years to treat cancer. However, focus on its tumor-suppressing mechanism concentrated effect tumor cell growth and apoptosis.With the aid of a panel human breast cancer lines, we reveal that glycyrrhetinic acid (GA), major component Glycyrrhiza, is actually significantly more potent agent suppress invasion than survival.GA effectively inhibits MMP-2/MMP-9 expression; GA-induced reduction MMP-2/9 expression apparently mediated by GA's...

Five new one-dimensional rare earth–nitronyl nitroxide radical complexes [Ln(hfac)3(NIT-3BrPhOMe)]n (Ln = Nd (1), Sm (2), Gd (3), Tb (4), Dy (5); hfac hexafluoroacetylacetonate; NIT-3BrPhOMe 2-(3′-bromo-4′-methoxyl)-4,4,5,5-tetramethyl-imidazolyl-1-oxyl-3-oxide) have been successfully prepared and structurally characterized. possess linear chain structure in which the ligands link Ln(hfac)3 units through oxygen atoms of nitronyl groups. DC magnetic studies show that Nd, are paramagnetic...

This article describes the comparison of three different classification algorithms for mapping crops in Hokkaido, Japan, using TerraSAR-X data. In study area, beans, beets, grasslands, maize, potatoes, and winter wheat were cultivated. Although maps are required both management estimation agricultural disaster compensation, those techniques have yet to be established. Some supervised learning models may allow accurate classification. Therefore, comparisons among regression tree (CART),...

In the present experiment, effects of sodium hydrosulfide (NaHS), a H2S donor, on oxidative damage, antioxidant capacity and growth cucumber hypocotyls radicles were studied under 100 mmol L−1 NaCl stress. treatment significantly induced accumulation H2O2 thiobarbituric acid-reactive substances (TBARS) in radicles, application NaHS dramatically reduced lipid peroxidation. However, alleviating greatly depended concentrations NaHS, 400 μmol showed most significant effects. Corresponding to...

Carbon dioxide (CO(2)) is the most important greenhouse gas (GHG) in atmosphere and greatest contributor to global warming. CO(2) concentration data are usually obtained from ground observation stations or a small number of satellites. Because limited observations short time series satellite data, it difficult monitor concentrations on regional scales for long time. The use remote sensing such as Advanced Very High Resolution Radiometer (AVHRR) Moderate Imaging Spectroradiometer (MODIS) can...