白酒糟酿酒酵母培养物营养成分分析及其在猪饲料中的应用价值评估

为评估白酒糟酿酒酵母培养物在猪饲料中的应用价值,本试验在测定白酒糟酿酒酵母培养物中水分、粗蛋白质、粗脂肪、粗灰分、粗纤维、氨基酸含量等营养成分的基础上,采用全收粪法测定猪对白酒糟酿酒酵母培养物中营养物质的全消化道表观消化率,并通过安装T型瘘管测定猪对白酒糟酿酒酵母培养物中氨基酸的回肠末端表观消化率。结果表明:白酒糟酿酒酵母培养物的水分、粗蛋白质、粗脂肪、粗灰分、粗纤维含量分别为8.34%、31.12%、5.00%、13.46%和11.00%,总能为19.53 MJ/kg,霉菌毒素含量远低于国家标准。猪对白酒糟酿酒酵母培养物中干物质、总能、粗蛋白质、粗脂肪、粗纤维和粗灰分的全消化道表观消化率分别为48.79%、38.33%、54.15%、82.94%、23.17%和20.29%,消化能为11.75 MJ/kg;猪对白酒糟酿酒酵母培养物中必需氨基酸和非必需氨基酸的回肠末端表观消化率的平均值分别为72.38%和69.37%,其中赖氨酸、甲硫氨酸的回肠末端表观消化率均超过80%。由此得出,白酒糟酿酒酵母培养物中氨基酸的吸收和利用率较高,可应用于猪饲料生产。

酒曲害虫的种类、危害及其防治研究进展

酒曲害虫作为酒厂的一大危害,越来越引起了酿酒行业的关注和重视。为了更加全面有效地对酒曲害虫进行防治,从酒曲害虫的种类、危害和防治方法等方面进行了综述,从物理、化学、生物防治等角度对历年来我国酒厂关于酒曲害虫的防治方法做了介绍和总结。同时对今后酒曲害虫的防治前景作了一定的展望,旨在为今后酒曲害虫的防治提供一定的参考和借鉴。

Empirical Analysis on Rural Financial Development and Farmers' Income Increase in China

The growth of farmer＇s incomes is cIoseIy reIated to rural finance. The research analyzed the dynamic reIationship of rural financial deveIopment, efficiency and farmer＇s incomes based on VAR modeI, and the resuIts indicated that the ex-pansion of rural finance wouId stimuIate farmer＇s incomes in a Iong term, and the growth of rural financial efficiency significantIy improves farmer＇s incomes in a short term, instead of a Iong term. Hence, it is necessary to introduce more credit funds and social funds to rural areas, deepen rural financial system reform and acceIerate use rate of Ioan capital and enhance guidance for farmers and township enterprises in use of Ioan capitals.

Assessment of Land Comprehensive Carrying Capacity in Lin'an City

According to regional characteristics and the actual situation in Lin ’an City, an evaluation index system of land comprehensive carrying capacity composed of three support subsystems （eco-environment, social and economic carrying capaci-ties） containing 22 evaluation indexes was established to evaluate the comprehen-sive carrying capacity of land resource in Lin’an City during 2005-2012. Meanwhile, based on the target data of overal land use plan, the level of land comprehensive carrying capacity was predicted at the end of the plan period （2020） .The results showed that land comprehensive carrying capacity had a significant growth in Lin ’an from 2005 to 2012, and the development trend was basical y sustainable. The sub-systems also had been greatly improved, in which the constant improvement of ec-ological environment carrying capacity made the largest contribution to the constant raising of land comprehensive carrying capacity. The degree of coordination between the systems was poor, in which eco-environment carrying capacity had the maxi-mum growth, far more than the social and economic carrying capacities. According to the land comprehensive carrying capacity in 2020, utilization of land resources in Lin＆#39;an city can achieve sustainable development in general. Final y, proposals of im-proving comprehensive carrying capacity were put forward in terms of the enhance-ment of eco-environment protection, accelerating economic development and policy guidance.

不同发酵周期酒糟对酒糟大曲质量的影响

为探究酒糟发酵周期对酒糟大曲质量的影响,采用单因素实验设计方法,将发酵周期分别为120d、180d、240 d、300 d的酒糟按照一定比例添加到小麦粉中制成酒糟大曲,研究酒糟大曲在培菌期的升温情况、成品酒糟大曲的感官情况及其酿酒情况。研究结果表明,使用发酵周期为240 d的酒糟制出的大曲在培菌期更遵循"前缓,中挺,后缓落"规律,且"中挺"时间最长,成品酒糟大曲感官情况最好,达到一级曲标准,产酒质量最好。

A novel image encryption scheme based on Keplers third law and random Hadamard transform

In this paper, a novel image encryption scheme based on Keplers third law and random Hadamard transform is proposed to ensure the security of a digital image. First, a set of Kepler periodic sequences is generated to permutate image data, which is characteristic of the plain-image and the Keplers third law. Then, a random Hadamard matrix is constructed by combining the standard Hadamard matrix with the hyper-Chen chaotic system, which is used to further scramble the image coefficients when the image is transformed through random Hadamard transform. In the end, the permuted image presents interweaving diffusion based on two special matrices, which are constructed by Kepler periodic sequence and chaos system. The experimental results and performance analysis show that the proposed encrypted scheme is highly sensitive to the plain-image and external keys, and has a high security and speed, which are very suitable for secure real-time communication of image data.

Improvement of the thermoelectric efficiency of pyrene-based molecular junction with doping engineering

In this study, the thermoelectric properties of pyrene molecule doped with boron and nitrogen atom at different sites of molecule are investigated using density functional theory and none-equilibrium Greens function formalism in the linear response regime. Our calculations show that when the impurities are added to the edge of the molecule, the anti-resonant peaks will appear in the transmission diagram in the vicinity of the Fermi energy level. So it increases the thermoelectric figure of merit of the system in comparison with the one that the impurity is located in the center of molecule. Additionally, the seebeck coefficient signs are not the same among the B, N, and N ＆ B doped devices, indicating that the types of the carriers can be changed with different types of doping.