Boundary Harnack principle for subordinate Brownian motions

We establish a boundary Harnack principle for a large class of subordinate Brownian motions, including mixtures of symmetric stable processes, in κ$\kappa$-fat open sets (disconnected analogue of John domains). As an application of the boundary Harnack principle, we identify the Martin boundary and the minimal Martin boundary of bounded κ$\kappa$-fat open sets with respect to these processes with their Euclidean boundaries.     

Synthesis, crystal structure and biological activity of novel anthranilic diamide insecticide containing alkyl ether group

In searching for environmentally benign insecticides with high activity, low toxicity and low residue, two series of novel anthranilic diamide containing methyl ether and isopropyl ether group were designed and synthesized. All of the compounds were characterized by ¹H NMR spectroscopy, ¹³C NMR spectroscopy and elemental analysis. The single crystal structure of 19j was determined by X-ray diffraction. The insecticidal activities of the new compounds were evaluated. The results showed that some compounds exhibited excellent insecticidal activities against Lepidoptera pests. Among this series, compound, 18l showed 100?% larvicidal activity against Mythimna separate Walker, Plutella xylostella Linnaeus and Laphygma exigua Hubner at the test concentration, which was equal to the available chlorantraniliprole.     

不同线宽结构杂散光Kirk模型分析

采用Kirk测量法的杂散光模型研究了杂散光在不同线宽结构上杂散光的光强变化,通过图像对比度分析了杂散光对不同线宽结构的影响。基于Matlab软件仿真分析表明:线宽一定时,线条越稀疏,图像对比度越低,杂散光对成像图形分辨力的影响越大;线条线间比一定时,线宽尺寸越小,图像对比度越低,杂散光对成像图形分辨力的影响也越大。所以杂散光对线宽较小并且线条稀疏空间结构所成的图形造成的影响较大。光刻; Kirk测量法; 杂散光; 点扩散函数; 图像对比度     

Electronic and Optical Properties of Zigzag BN/AlN Nanoribbons with Misfit Dislocations: First-Principles Calculations

Misfit dislocations (MDs), existing in a broad family of materials, are known to exhibit unique and remarkable properties that are an important factor in the performance of certain devices. Here we report the first-principles investigation of one-dimensional MDs in a zigzag heterojunction between BN and AlN nanoribbons (BN/AlN). Our results show that MDs enable robust stability and versatile properties. The band gaps and even the nature of the indirect/direct band gap can be tuned by altering the bond types at the interface. Specifically, the band gaps can be reduced to much smaller than those of zigzag AlN nanoribbons by regulation of MDs. Moreover, the formation of interfaces broadens the absorption and reflection ranges considerably. These findings will not only enrich our understanding of MDs, but also provide new opportunities for the manipulation of two-dimensional materials in electronic and photoelectronic applications.     

ColdStore: A Storage System for Archival Data

Wireless Personal Communications - With the astounding growth of the information era, the amount of data increases at high speed. However, a significant fraction of the data residing in storage is...     

Joint optimization of channel allocation and power control for cognitive radio networks with multiple constraints

Wireless Networks - With the increasing demands for wireless communication, efficiently using the spectrum resource has always been an important research topic. In this paper, the problem of N...     

Dynamic reputation information propagation based malicious account detection in OSNs

Wireless Networks - People all around the world have become increasingly dependent on online social networks (OSNs), meanwhile, the number of malicious accounts in OSNs is also rapidly growing....     

Traditional Dough in the Era of Internet of Things: Edible,Renewable, and Reconfigurable Skin‐Like Iontronics

With the rapid development of Internet of Things technology, interactive interfaces that can promote bidirectional communications between human beings and machines will certainly play an important role. Current electronic or iontronic systems meet diverse requirements such as conductivity, mechanical compliance, stimuli responsiveness, long‐time duration, and even biocompatibility. However, for future large‐scale applications, non‐degradable and non‐recyclable components in these devices cause resource waste and environmental pollution. Here, traditional dough is used to replace non‐recyclable conductive components and fabricate a type of renewable and reconfigurable smart skin. These smart skins are self‐healing, mechanically adaptable to irregular interfaces, and can sense different gestures of a prosthetic hand as well as large and subtle scale of human motion. This work greatly extends the material choice and enables new functionality for skin‐like iontronics, and may address the concern about their impact on human health and environmental issues in the era of Internet of Things.