Microwave Extraction of V A,V D,V E from Pre mixed Feed and the Comparison with Other Extraction Methods

以甲醇为溶剂，用微波成功地萃取了饲料添加剂中的维生素A、d、E。与常规的搅拌萃取、超声波萃取方式比较，微波萃取具有速度快、萃取效率高等优点。V A, V D, V E were successfully extracted from pre mixed feed by microwave technique using methanol as solvent.Compared with conventional agitation extraction and ultrasound extration, microwave extraction has the advantages of being fast and efficient.福建省自然科学基

Determination of Vitamin E and Vitamin B 6 in Feed Additives with High Performance Liquid Chromatography

采用反相高效液相色谱测定饲料添加剂中维生素E和维生素b6.采用甲醇萃取维生素E，回收率达85%.方法重现性好，步骤简单，分析速度快.A method of determination of Vitamin E and Vitamin B 6 in feed additives with reversed phase HPLC has been developed.Methanol is used to extract Vitamin E directly with the recovery of 85%.The method is simple, fast, and reproducible

肌醇的高效液相色谱分析

饲料添加剂中肌醇的经典分析方法是重量法,该法在样品中加入硫酸-乙酸酐混合液,加热使肌醇生成六乙酰肌醇,用三氯甲烷提取六乙酰肌醇,将三氯甲烷蒸发至干,残留的六乙酰肌醇经干燥称量,再换算成样品中肌醇的含量

基于CNN-Bi-LSTM功率预测的海岛综合能源系统优化调度

合理构建海岛综合能源系统对沿海能源清洁化转型意义重大，其优化调度更是实现海岛能源供需平衡的有效途径。为此，提出了一种考虑风光功率预测的海岛综合能源系统优化调度方法。首先，搭建包含氢能设备、海水源热泵、海水淡化装置、波浪能发电装置等新型能源转换设备的系统模型。其次，海上气候多变会导致新能源发电不稳定，故采用含环境变量重要性排序的一维卷积神经网络和双向长短时记忆神经网络（convolutional neural network-bi-directional long short-term memory，CNN-Bi-LSTM）联合模型对发电功率进行预测。然后，为维持海岛基本生存条件，以电-冷-淡水-氢平衡为约束，以改善系统运行经济性和可再生能源消纳率为目标函数，建立综合能源系统优化调度模型。对夏冬两个典型日进行仿真分析，结果表明所提出的预测模型具有较高的预测精度，所提优化调度方法可以实现海岛能源供需平衡，同时能够有效降低系统运行成本，提高可再生能源消纳率

A Study on the New Analytical Method of the Invsitol of Feeder Addictives

用红外光谱对肌醇样品进行定性分析,用高效液相色谱法对肌醇样品的乙酰化产物进行定量测定。所建立的方法避免了环境污染,且简便、准确、重现。A new method has been developed to analyze inositol in feed additive samples. FT - IR technique was used for qualitative analysis, and HPLC technique for quantitative analysis . Compared to the conventional method of gravimetric analysis, the proposed method avoids the pollution to the environment, being reliable, accurate and reproducible

Adsorption Kinetics of Zn2＋ on Aluminum Dihydrogen Tripolyphosphate

采用动态吸附法研究三聚磷酸二氢铝吸附锌离子的动力学行为并进行吸附机理的探索。结果表明:当消除内外扩散影响时,三聚磷酸二氢铝对锌离子的吸附符合二级反应动力学方程,吸附速率常数k与温度T之间的关系符合阿累尼乌斯方程式,吸附的活化能Ea=31.01 kJ.mol-1,吸附的频率因子A=147.68 L.mg-1.min-1,ln(k/T)与1/T之间的关系符合Eyring公式,其活化焓ΔH=28.46 kJ.mol-1,活化熵ΔS=-211.90 J.mol-1.K-1,其吸附机理是三聚磷酸二氢铝中的质子氢与其表面吸附的锌离子发生离子交换。 Dynamics of adsorption for zinc ion using aluminum dihydrogen tripolyphosphate is studied by dynamic absorption method.The adsorption mechanism of this process is discussed.The results show that the absorption of zinc ion on aluminum dihydrogen tripolyphosphate is a second order reaction kinetics equation when the internal or external diffusion is eliminated.The relationship between reaction rate constant k and temperature T accords with Arrhenius Equation,and the activation energy of absorption Ea is 31.01 kJ·mol-1 and frequency factor A is 147.68 L·mg-1·min-1.The relationship between ln（k/T） and 1/T accords with Eyring Equation,and the activation enthalpy of absorption ΔH is 28.46 kJ·mol-1 and the activation entropy of absorption ΔS is-211.90 J·mol-1·K-1.The main forms of aluminum dihydrogen tripolyphosphate for Zn2＋ adsorption are both surface adsorption and ion exchange with proton hydrogen.国家自然科学基金资助项目(20566003);广西民族大学博士启动基金资助项

数据中心弹性光网络专用路径保护方法研究

随着大数据、云服务和人工智能的发展，网络向着规模化与复杂化方向演进，网络发生故障的概率增加，需要为每个连接请求提供专用保护，减少因网络故障造成的损失。因此，在数据中心弹性光网络中，为了提高网络的生存性，采用带宽调整方法。文章提出了一种数据中心弹性光网络专用保护优化方法。仿真结果表明，文章所提专用保护优化方法能够有效降低网络的阻塞率，提高网络资源利用率，解决了网络生存性问题

Absorption Characteristics of Aluminum Dihydrogen Tripolyphosphate on Ammonia and Organic Amines Gas

研究三聚磷酸二氢铝对氨、甲胺、二甲胺、三甲胺、正丁胺等气体的静态吸附过程动力学特性。比较了三聚磷酸二氢铝、活性炭对碱性气体的吸附性能与规律,通过滴定实验和红外测定推测其吸附机理。结果表明:活性炭对碱性气体的吸附存在脱附,尽管吸附速率较快但吸附量较小,对氨气、甲胺、二甲胺、三甲胺和正丁胺的吸附量分别是73.12、76.37、79.24、83.11、70.91 mg/g。三聚磷酸二氢铝对碱性气体的吸附是一个化学吸附过程,吸附速率快且吸附量大,吸附量分别是431.7、790.1、889.2、912.4、635.3 mg/g,其吸附过程符合Elovich方程,是一个由吸附速率和扩散因子综合控制的过程。Kinetics characteristics of aluminum dihydrogen tripolyphosphate on ammonia, methylamine, dimethylamine, trimethylamine and n-butylamine gas were studied by static absorption method. Adsorption properties and rule of alkaline gas by aluminum dihydrogen tripolyphosphate and activated carbon were compared, and their adsorption mechanism was explored by titration and infrared method. Results showed that desorption existed in the absorption of alkaline gas by activated carbon, with adsorption rate faster but adsorption quantity smaller. The adsorption capacity of activated carbon on ammonia, methy-lamine, dimethylamine, trimethylamine and n-butylamine gas was 73.12,76.37, 79.24, 83.11 and 70.91 mg/g respectively. Absorption of aluminum dihydrogen tripolyphosphate on alkaline gas was a chemical process, with faster adsorption rate and bigger adsorption capacity, and the adsorption capacity of ammonia, methylamine, dimethylamine, trimethylamine and n-butylamine gas as 431.7, 790.1, 889.2, 912.4 and 635.3 mg/g respectively. The absorption has been found to fit the Elovich equation, which is controlled by both adsorption rate and diffusion factor process.2011广西高校科研项目资助(200103YB041

Synthesis kinetics of isoamyl acetate catalysized using activated charcoal loaded H_3PO_（40）W_（12）·xH_2O

以活性炭吸附磷钨酸水合物作催化剂催化合成乙酸异戊酯,在优化条件下,消除内外扩散,研究乙酸浓度与时间的变化关系,建立酯化反应的表观动力学模型,并对模型进行验证。结果表明,常压下,在实验条件范围内,该酯化反应为二级反应,活化能为Ea=31.20 kJ/mol,指前因子k0=114.43 L/（mol.min）,动力学模型计算结果与实际测定结果相符合,动力学方程为：r=dCA/dt=114.43e-31197/RTCACB。Isoamyl acetate was synthesized using activated charcoal loaded H3PO40W12·xH2O as a catalyst.By the elimination of internal and external diffusion,the concentration change of acetic acid with reaction time was determined.Kinetics model of this esterization reaction was investigated and evaluated under the optimized experimental conditions.The results show this esterization is a second-order reaction,with a Ea=31.20 kJ/mol,k0=114.43 L/（mol·min）.Calculated values agreed with experimental values well.The kinetics equation is：r=dCA/dt=114.43e-31197/RTCACB国家自然科学基金项目(20566003)； 广西民族大学重大项目(2008ZD012)； 广西科学研究与技术开发计划应用基础研究专项(桂科基0991005,桂科能0992028-13