基于混合果蝇优化算法的选址-库存-配送集成优化研究

本文面向企业运营管理实践,构建了一种基于联合补货策略的选址-库存-配送集成优化新模型。作为典型的NP-hard问题,传统算法难以高效稳定地求解,故本文设计了一种新的混合果蝇优化算法(Fruit Fly Optimization Algorithm, FOA),通过引入进化算法的信息交换、变异、选择操作来增强算法局部寻优能力,采取概率性飞行策略来平衡算法的全局寻优与局部寻优。算例结果表明,新混合FOA算法的准确性和稳定性较标准FOA有了明显的改善,与差分进化、自适应混合差分进化、粒子群优化相比也具有比较优势。     

果树干周生长模型的研究

生长模型是定量研究果树干周生长过程的有效手段.果树干周生长规律常用L og istic方程、M itscherlich方程、三参数和四参数的R ichards方程、三角函数方程来模拟.本文首次用拟W e ibu ll方程模拟果树干周的生长规律,结果表明,W e ibu ll方程达到了与果树干周最佳拟合的效果,同时,本文方法可先给定由实际情况(如立地条件等)所确定的干周生长的最大值,这使得在研究中可以更好地预测果树将来的干周增长.另外,考虑到因实际情况所造成的初始干周不同这种普遍现象及其引起的生长过程的差异,本文直接引入与单株树体有关的基准干周作为参数,建立了与实际生长情况相结合的干周生长模型,获得了满意的结果.     

山东省主栽果树生殖器官中稀土与微量营养元素的相关性研究

通过对山东省5大类主栽果树20余个树种的花粉、种子和果实稀土与微量元素自然含量进行分析比较, 认为稀土(RE)与微量元素在各树种花粉中平均含量顺序为Fe＞Zn＞B＞Cu＞Mn＞RE, 种子中B＞Fe＞Zn＞Mn＞Cu＞RE, 果实中Fe＞B＞Zn＞Cu＞Mn＞RE. 各元素在各生殖器官中的自然分布因树种而有很大差异. 但基本规律类同, 即花粉＞种子＞果实. 花粉富集各种微量营养元素的能力都很强. 花粉和果实稀土与微量元素之间绝大多数呈正相关, 种子大多呈负相关, 但相关性均不显著.     

Flavor analysis by HRGC/FT-IR: Cherimoya (Annona cherimolia,mill.) fruit volatiles

The volatiles of fresh cherimoya (Annona cherimolia, Mill.) fruit pulp were separated by combined high-vacuum distillationliquid/liquid extraction (pentane/dichloromethane 2+1). After preseparation by liquid chromatography on silica gel three fractions (I-III) were obtained by eluting with pentane (I), pentane/diethyl ether (9+1) (II), and diethyl ether (III), and fractions II and III were subjected to HRGC/FT-IR analysis. 26 volatile compounds comprising nearly all the main components (range, 10–300 μg/kg fruit pulp) were identified by this technique for the first time in cherimoya fruit.     

反相高效液相色谱法同时测定果汁中8种添加剂

建立了反相高效液相色谱法（ＲＰ－ＨＰＬＣ）同时直接测定进口果汁中柠檬黄和苋菜红等８种添加剂含量的方法。色谱柱为Ｈｙｐｅｒｓｉｌ　ＢＤＳ　Ｃ１８柱（２５０ｍｍ×４．０ｍｍｉ．ｄ,５μｍ）,流动相为甲醇／０．０１ｍｏｌ／Ｌ乙酸铵,梯度洗脱,流速为 １．０ ｍＬ／ｍｉｎ,柱温为 ４０℃,ＤＡＤ紫外检测器波长为 ２３０ ｎｍ。在此色谱条件下,各组分在１０ ｍｉｎ内均得到良好分离。平均回收率为 ９０％～１１４％,相对标准偏差 １．３％～８．０％。     

阻抑动力学光度法测定食物中痕量草酸

水果;蔬菜;溴甲酚紫;阻抑动力学光度法测定食物中痕量草酸     

高效液相色谱法测定木奈果中的山梨醇和糖类

用高效液相色谱外标法测定了木奈果中的可溶性糖和山梨醇 ,采用 μ Spherogelcarbohydrate柱和示差折光检测器 ,以水为流动相 ,柱温 85℃。相关系数在 0 970 9以上 ,加标回收率为 75 0 0 %～ 88 37%。测定结果表明 ,可溶性糖在果肉中的累积依果肉不同的生长发育阶段有特征性的变化。     

标准化生产对瓜果品质的影响研究——基于吐鲁番地区国家级标准化生产示范区的样本分析

瓜果产品的标准化生产过程涉及到几十项技术标准的制定和实施,其中最关键的标准是产品质量标准,它是整个生产过程实施和监控的目标。对于瓜果生产者而言,产品质量和安全的实现和提高,还需要建立以质量标准为目标的技术标准体系,并严格按标准体系组织生产,才能切实提高瓜果的优级率和商品率。但是不同标准化生产水平对于瓜果品质提高的影响程度,目前国内外尚无测量分析和实证研究。本文以新疆吐鲁番地区承担的国家级农业标准化生产示范项目为研究对象,2013年分别在非示范区、一般示范区、核心示范区采集了哈密瓜366个、吐鲁番葡萄431个样本,对3种标准化生产条件下哈密瓜和吐鲁番葡萄的品质进行实证比较分析,研究结果表明:核心示范区瓜果品质显著优于非示范区和一般示范区瓜果品质。     

Determination of Total Antioxidant Content in Various Drinks by Amperometry

In the present work the total content of phenolic antioxidants in juice of some fruit and vegetables, in wines, water extracts of tea and herb were measured by amperometry. Efficiency of the method allowed determining the total antioxidant content in their binary and multimixes, including processes of frosting-defrosting and juice diluting as well. The deviation of experimentally received values of the total antioxidant content in some drink mixes from the values calculated proceeding from the additivity principle of the antioxidant content in separate drinks has been revealed.     

Herbal Composition LI73014F2 Alleviates Articular Cartilage Damage and Inflammatory Response in Monosodium Iodoacetate-Induced Osteoarthritis in Rats

The aim of this study was to determine the anti-osteoarthritic effects of LI73014F2, which consists of Terminalia chebula fruit, Curcuma longa rhizome, and Boswellia serrata gum resin in a 2:1:2 ratio, in the monosodium iodoacetate (MIA)-induced osteoarthritis (OA) rat model. LI73014F2 was orally administered once per day for three weeks. Weight-bearing distribution and arthritis index (AI) were measured once per week to confirm the OA symptoms. Synovial membrane, proteoglycan layer, and cartilage damage were investigated by histological examination, while synovial fluid interleukin-1β level was analyzed using a commercial kit. Levels of pro-inflammatory mediators/cytokines and matrix metalloproteinases (MMPs) in the cartilage tissues were investigated to confirm the anti-osteoarthritic effects of LI73014F2. LI73014F2 significantly inhibited the MIA-induced increase in OA symptoms, synovial fluid cytokine, cartilage damage, and expression levels of pro-inflammatory mediators/cytokines and MMPs in the articular cartilage. These results suggest that LI73014F2 exerts anti-osteoarthritic effects by regulating inflammatory cytokines and MMPs in MIA-induced OA rats.