Supply chain coordination by manufacturer reward contract

We investigate how a manufacturer sets a reward contract to realize supply chain coordination when a retailer's service effort has a showrooming effect. We demonstrate that the manufacturer's reward contract increases retail prices and benefits the retailer but may hurt the manufacturer. Meanwhile, a large unit reward can soften the price competition. We also find that when the unit reward is high, a greater showrooming effect may benefit supply chain members, and the retailer provides a higher service effort.     

Enhancement of the electrical characteristics of indium–zinc tin-oxide thin-film transistors utilizing dual-channel layers

Thin film transistors (TFTs) with indium–zinc tin-oxide (IZTO) dual-channel layers were fabricated on heavily-doped p-type Si substrates by using a tilted dual-target radio-frequency magnetron sputtering system. The number of oxygen vacancies in the IZTO channel layer decreased with increasing oxygen partial pressure, resulting in a decrease in the conductivity. The threshold voltage (V_th) shifted toward positive gate-source voltage with increasing oxygen partial pressure for the growth of the IZTO layer because of a decrease in the carrier concentration. The V_th, the mobility, the on/off-current ratio, and the subthreshold swing of the dual-channel IZTO TFTs were 3.5 V, 7.1 cm²/V s, 1.3 V/decade, and 8.2 × 10⁶, respectively, which was enhanced by utilizing dual-channel layers consisting of a top channel deposited at a high oxygen partial pressure and a bottom channel deposited at a low oxygen partial pressure.     

聚乙烯吡烙烷酮修饰碳糊电极-双通道毛细管电泳安培法测定环境中的硝基酚

建立了几种硝基酚的聚乙烯吡烙烷酮修饰碳糊电极-双通道毛细管电泳安培检测的新方法.采用双工作电极和两台伏安仪,将样品的检测电位分别设定在氧化电位(+0.5V_vs.SCE)和还原电位(-1.4V_vs.SCE),在一个检测池中同时获得所有样品的氧化和还原信息,以还原电流和氧化电流值之比(Nc=ir/io)作为定性依据,对样品的纯度进行确证.通过优化工作电极、检测电位、缓冲溶液、β-CD和乙醇浓度等实验参数,实现了几种硝基酚的分离检测,同时采用样条小波最小二乘法对样品数据信号进行处理,并将此法应用于实际样品的测定.     

双通道-双工作电极毛细管电泳电化学法快速检测大黄酸

报道了一种测定大黄酸的快速毛细管电泳电化学方法。采用简易制作的一种双通道-双工作电极电化学系统,可以实现电导法和安培法同时检测;优化选择了缓冲介质、工作电极、检测电位、毛细管长度和内径以及分离电压等实验参数,并对提高分析速度进行了初步研究和探讨。结果表明:大黄酸在100s内可以得到较好的分离测定,电导法和安培法的线性范围分别为6.83×10-4～1.07×10-5mol/L和3.41×10-4～2.67×10-6mol/L,最小检出浓度分别为5.28×10-6mol/L和3.16×10-7mol/L。采用设计的双通道 双工作电极检测装置,可以充分发挥电导法和安培法的优越性,对样品峰及样品的纯度进行确证;另外通过采用较短的毛细管与适当提高分离电压,可以提高分析速度。该法已用于中药大黄中大黄酸的测定。     

A medical image fusion method based on energy classification of BEMD components

A medical image fusion method based on bi-dimensional empirical mode decomposition (BEMD) and dual-channel PCNN is proposed in this paper. The multi-modality medical images are decomposed into intrinsic mode function (IMF) components and a residue component. IMF components are divided into high-frequency and low-frequency components based on the component energy. Fusion coefficients are achieved by the following fusion rule: high frequency components and the residue component are superimposed to get more textures; low frequency components contain more details of the source image which are input into dual-channel PCNN to select fusion coefficients, the fused medical image is achieved by inverse transformation of BEMD. BEMD is a self-adaptive tool for analyzing nonlinear and non-stationary data; it doesn’t need to predefine filter or basis function. Dual-channel PCNN reduces the computational complexity and has a good ability in selecting fusion coefficients. A combined application of BEMD and dual-channel PCNN can extract the details of the image information more effectively. The experimental result shows the proposed algorithm gets better fusion result and has more advantages comparing with traditional fusion algorithms.     

A multi-focus image fusion algorithm based on an improved dual-channel PCNN in NSCT domain

This paper presents a multi-focus image fusion algorithm based on dual-channel PCNN in NSCT domain. The fusion algorithm based on multi-scale transform is likely to produce the pseudo-Gibbs effects and it is not effective to fuse the dim or partial bright images. To solve these problems, this algorithm will get a number of different frequency sub-image of the two images by using the NSCT transform, the selection principles of different subband coefficients obtained by the NSCT decomposition are discussed in detail, and the images are fused based on the improved dual-channel PCNN in order to determine the band-pass sub-band coefficient, at last fused image is obtained by using the inverse NSCT transform. Fusion rules based on dual-channel PCNN are used to solve the complexity of the PCNN parameter settings and long computing time problems. The experimental results show that the algorithm has overcome the defects of the traditional multi-focus image fusion algorithm and improved the fusion effect.     

Benzimidazole-based optical probe for selective detection of multiple-cations via dual-channel analysis

A benzimidazole-based optical probe having pendant carboxyl, amine, and imine groups as ionophore has been prepared for screening various metal ions. The 4-(1H-benzo[d]imidazol-2-yl)-1H-imidazole-5-carboxylic acid (1) has been obtained in good yield and characterized by full battery of complementary physico-chemical techniques including ¹H NMR, UV-Vis, fluorescence spectroscopy, and single crystal X-ray crystallography. Metal ion-binding properties of 1 have been studied using ppm level concentration of representative alkali metal (Na⁺, K⁺), alkaline earth metal (Mg²⁺, Ca²⁺), and transition metal (Zn²⁺, Co²⁺, Fe³⁺, Cd²⁺, Hg²⁺, Pb²⁺, Cu²⁺, Ag⁺) ions and the output signal was monitored via two different channels viz chromogenically and fluorogenically. Selective recognition of Hg²⁺ has been explored with absorption spectra whereas emission spectra of 1 display differential response for multiple cations at parts-per-million (ppm) level concentration that allow selective detection of Ca²⁺, Mg²⁺, and Na⁺ ions. The results have been discussed in light of selectivity, sensitivity, response time, mode of binding/interactions, and sensing properties.     

声表面波免疫传感器的设计及应用

声表面波免疫传感器是一种新型生物免疫传感器，它利用声表面波振动的敏感性，同时结合了免疫反应的特异性，作为免疫检测的手段。可以对多种抗原或抗体进行快速的定量测定。具有高特异性，高灵敏度，响应快，小型简便等特点。本文利用声表面波延迟线振荡器作为传感器，检测溶液中人体免疫球蛋白IgG的含量。实验采用双通道系统进行频率变化的测定，并分别采用氨基硅烷膜，蛋白A两种方法将抗体固定到反应区域表面，根据实验结果，我们得到了频率变化和质量附着的定量关系。并与理论分析的结果相比较。