An efficient and green protocol for the synthesis of amides through Ritter reaction nitriles halohydrocarbons was developed. Cu(OTf)2 economically efficiently catalysed in water. A range (benzyl, tert-butyl, sec-alkyl primary alkyl halohydrocarbons) were coupled with nitriles, providing corresponding amides.

Abstract Anisotropic slippery surfaces are widely used in anti‐fouling, smart control of liquid movement and directional transportation. However, anisotropic liquid‐infused porous (SLIPS) cannot meet the need practical applications owing to loss contamination lubricants. Inspired by solid epicuticular wax on surface land plant leaves, we herein report a type biomimetic (ASSS) based paraffin wax‐incorporated paper with micro‐grooves. This ASSS material shows sliding behavior for droplets...

Context model is a fundamental issue when the intelligent interaction system constructed based on context-aware in Internet of Things. In traditional user-centric and human-computer oriented, main context users their surrounding's information. However, Things thing-thing interaction, will be changed to perception nodes But, there not unified aiming at this point. This paper presents analyzes conception, classification formalization context. Therefore, work can have been an important...

Abstract Magnetic iron oxides are commonly enriched in soils and sediments on Earth's surface. properties widely employed soil taxonomy, sediment tracing paleoclimate reconstruction as indicators of associated pedogenic depositional processes. However, coastal regions, frequent shifts pedogenesis diagenesis accompanied by changes hydrodynamic geochemical conditions from land to sea can influence the formation preservation magnetic particles sequences. To discern origin nature driven these...

Light intensity is one of the main factors determining growth and distribution seagrasses, but seagrasses differ in their responses to changes light environment, resulting inconsistent adaptation. To investigate effect reduction on Enhalus acoroides (L. f.) Steud., we simulated different intensities by setting up situ shade shelters with three environments: full (CK), moderate shading (MS) high (HS), investigated response adaptation mechanism E. a low-light environment. The results showed...

Abstract To improve hydrogen storage capacity, MgH 2 whiskers are produced directly from common Mg particles through hydrogenation at 420 °C under MPa of H for 72 h. The morphology, thermal stability, growth direction, and mechanism the investigated. Results show that as‐prepared sample with has a capacity 7.14 wt.%, but features high stability. Under SEM, 400–1000 nm in diameter their lengths can reach to 150 µm. long display, some extent, flexibility like human hair. XRD test reveals...

Large-language Models (LLMs) have been extremely successful at tasks like complex dialogue understanding, reasoning and coding due to their emergent abilities. These abilities extended with multi-modality include image, audio, video capabilities. Recommender systems, on the other hand, critical for information seeking item discovery needs. Recently, there attempts apply LLMs recommendations. One difficulty of current is that underlying LLM usually not trained recommender system data, which...

As one of the typical coastal ecosystems, seagrass bed has important ecological service functions. In order to enrich basic data multispecies tropical beds, main controlling factors affecting community status were identified. this study, species, distribution and characteristics in Wenchang investigated at five stations 2023, Spearman correlation analysis Redundancy used investigate relationship between environmental characteristics. The results showed that there 7 species belonging 5 genera...

An efficient K-shortest paths routing algorithm for computer networks is presented. The Algorithm based on enhancements to currently used link-state algorithms such as OSPF, which only focusing finding the shortest path route by Dijkstra algorithm. desire effect achieve mainly through use of algorithm, has been implemented successfully in some fields like traffic engineering. correctness this discussed long comparison with OSPF.

Persistent organic pollutants (POPs) in the environment have characteristics of persistence, bioaccumulation, teratogenicity, carcinogenicity, and mutagenicity. Long-term exposure low-content POPs will also a certain impact on marine ecosystems human beings. The contents three typical persistent pollutants[polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs), polycyclic biphenyls (PCBs)] surface sediments were analyzed using gas chromatography mass spectrometry (GC-MS)...

Abstract A wide range of amides is smoothly synthesized by Ritter reaction benzyl, tert‐butyl, sec‐alkyl and primary alkyl halides with various nitriles.

The Cover Feature illustrates an anisotropic solid slippery surface based on paraffin wax-incorporated paper with directional micro-grooves, inspired by epicuticular wax the of land plant leaves. This material shows excellent sliding behavior and self-cleaning effect for both hydrophilic hydrophobic contaminants. More information can be found in Article P. Guo et al. page 946 Issue 7, 2019 (DOI: 10.1002/cphc.201900098).