专利名称:多功能移动式散状物料取料装置

专利申请号:CN03220807.3公开号:CN2707708申请日:2003.03.27公开日:2005.07.06申请人:镇江市邦禾机电装备有限公司本实用新型涉及一种用于粮食等散装物料的取料、灌包、称量的机械,特别是一种多功能移动式散装物料取料装置。该装置包括有1个行走车架,在行走车架上安装有取料机构和传送机构,在行走车架的后端安装有与行走车架联为一体的灌包计量装置,灌包计量装置包括有安装在行走车架上的称     

日照口岸进口木薯干存在的质量问题与对策

为应对中国加入WTO后农产品进出口贸易竞争,履行SPS、TBT协定,给检验检疫同行和木薯干进口商提供进口木薯干检验检疫技术、信息交流,提高进口木薯干检验检疫水平,保障我国利益,对日照口岸进口的57批次、42万吨木薯干的检验检疫结果进行分析研究发现贸易合同存在漏洞,短重问题严重,植物检疫发现害虫13科、19种,卫生检验有2批次农残"六六六"超标,对发现的问题提出了相应的技术性措施和建议.     

箱式灌包机上料自动化设计

本文针对箱式灌包机上料系统,靠人工手动控制,经常导致上料不及时灌包等料或上料过多溢出撒漏等问题,降低了灌包效率,造成了人员和成本浪费,同时存在安全隐患。为了解决这一问题,对上料系统进行自动化改造,实现了自动控制,使供料稳定,降低了劳动强度,提高了灌包效率,取得了良好效果。     

铜精矿自动计量防堵料灌包技术研究

铜精矿自动计量防堵料灌包设备在原有灌包箱的基础上增加自动计量系统和防堵料系统,通过称重传感器、仪表和PLC相互配合控制实现自动计量;通过对原灌包箱的金属结构改进,利用电机带动不锈钢刮料网带实现加料过程,避免铜精矿自动落料造成的下料口堵料问题;通过自动计量系统和防堵料系统的设计,有效解决铜精矿灌包作业的堵料问题,提升了作业效率,降低作业劳动强度,经济效益显著。     

优化木薯干流程 减少流程启动时间

日照港木薯干皮带机系统共有11条皮带机和11台除尘器,启动顺序为11台除尘器启动后依次启动11条皮带机,启动时间较长。针对存在的问题对木薯干皮带机系统启动顺序进行了优化,减少了皮带机流程启动时间,提高了生产效率。     

基于ARIMA模型的我国木薯干进口发展预测研究

本文采用时间序列分析方法对我国1984—2007年木薯干进口量的数据进行分析,建立相应的时间序列模型。我们预留了2006—2007年的数据进行模型预测对比。通过预测对比,发现ARIMA模型的预测效果较好,可以用来对我国木薯干进口量进行预测。     

木薯简介

木薯又叫树薯、木番薯,是世界三大薯类作物(马铃薯、甘薯、木薯)之一,有"淀粉之王"和"地下粮仓"的美称。1.木薯的用途。世界上木薯总产量的65%被用作食物,是热带尤其是非洲地区低收入人群的主要食物之一。木薯除可做粮食外,还是很好的饲料原料,且在工业上还具有重要用途。木薯淀粉或干片可制成酒精、柠檬酸、谷氨酸、赖氨酸及木薯蛋白质     

一种具有升降功能的粮食灌包机

针对我国基层粮库仓房陈旧、仓门低矮、只能采用人工灌包方式出仓、用工多且难找、费用高的现状,瑞安市粮食收储公司与校企相结合,开发出具有升降功能的灌包机,实现了粮食出仓灌包的半机械作业,提高出仓功效2倍以上,降低吨粮出仓成本10元左右,取得良好地经济与社会效益。     

木薯纤维杂去除技术研究

木薯中的纤维杂质进入生产系统后,堵塞塔器,影响生产连续进行。课题研究、完善了木薯纤维杂的去除方法,为木薯中纤维杂的去除找到了一个合适的清理方法,为以木薯为原料的酒精生产企业的纤维杂去除积累了经验。     

进口木薯干迅猛增长质量问题不容忽视

木薯干作为价格低廉、淀粉含量较高的初级农产品,可以用来加工酒精、柠檬酸等产品。近年来,南通口岸进口木薯干(渣)数量增长迅猛。我们在检验检疫及其监管过程中发现了一些问题,并采取了一些措施,有效地防止了外来有害生物的入侵,保护了我国环境和人民身体健康。一、检验检疫情     

Sensory characteristics of fufu prepared with cassava roots (Manihot esculenta Crantz) stored in polyethylene sacks

This study was carried out to assess the effect of storage of cassava roots in polyethylene sacks for periods of 2, 4, 6 and 8 weeks on the sensory characteristics of cassava fufu, a popular Ghanaian dish. Freshly harvested cassava roots were dipped in tap water and packed into polyethylene sacks in 2‐kg batches and stored at room temperature (25°C ± 1°C). Samples of fresh cassava fufu were evaluated and then at two weekly intervals for a period of 8 weeks. Attributes evaluated were colour, smell, elasticity, smoothness and taste. A structured six‐point ranking scale ranging from 6 (excellent) to 1 (very poor) was used for the evaluation. The data were analysed using analysis of variance, and the least significance difference test at P < 0.05 was used to determine differences between means. The results showed that storage of cassava roots for up to 8 weeks did not significantly affect the colour, smell, elasticity and taste of cassava fufu. However, smoothness of fufu prepared with cassava stored for 6 and 8 weeks was significantly different from the samples of the fresh cassava, and those stored for 2 and 4 weeks. It was concluded that cassava roots stored for periods up to 8 weeks in polyethylene sacks produced fufu of similar characteristics as fresh cassava fufu. This method is therefore recommended for use by homemakers, food service operators, cassava retailers and processors to save them time, energy and money used for the frequent trips for purchases. The method would also reduce post‐harvest losses to a large extent.     

预处理技术对马铃薯原料及油炸马铃薯脆片品质影响的研究

为改善马铃薯脆片品质,本文分析了漂烫、浸渍、冷冻等预处理技术对马铃薯原料(主要是营养成分维生素C含量)和油炸马铃薯脆片品质的影响。结果表明,马铃薯切片厚度2 mm,采用漂烫(95℃漂烫2 min)、浸渍、冷冻相结合的方式可较好保存维生素C,又可得到感官评定最佳的油炸马铃薯脆片。     

Staying Power of Churn Prediction Models

In this paper, we study the staying power of various churn prediction models. Staying power is defined as the predictive performance of a model in a number of periods after the estimation period. We examine two methods, logit models and classification trees, both with and without applying a bagging procedure. Bagging consists of averaging the results of multiple models that have each been estimated on a bootstrap sample from the original sample. We test the models using customer data of two firms from different industries, namely the internet service provider and insurance markets. The results show that the classification tree in combination with a bagging procedure outperforms the other three methods. It is shown that the ability to identify high risk customers of this model is similar for the in-period and one-period-ahead forecasts. However, for all methods the staying power is rather low, as the predictive performance deteriorates considerably within a few periods after the estimation period. This is due to the fact that both the parameter estimates change over time and the fact that the variables that are significant differ between periods. Our findings indicate that churn models should be adapted regularly. We provide a framework for database analysts to reconsider their methods used for churn modeling and to assess for how long they can use an estimated model.     

DSP中FPGA实现的新思路

本文论述了FPGA在DSP应用上的优缺点，比较了FPGA芯片和DSP芯片之间的差别，介绍了解决隔阂的方案-XtremeDSP轮件包和平台级的Virtex Ⅱ芯片，最后，对Xtreme和Vitrex Ⅱ芯片的特点进行了详细说明。     

低速率语音编码技术

本文介绍了语音处理技术，各种基于ＤＳＰ技术的语音压缩算法和各种语音编码标准及领域，介绍了几种语音ＤＳＰ的专用芯片。     

Market Structure,Learning and Product Innovation: Evidence for the EPROM Market

The study analyses the market for semiconductor memory chips, in particular EPROMs. Semiconductors are very interesting industry for studying empirically the dynamics of innovation. Given the short product life cycles of generations of chips, the market dynamics unfold much more rapidly than in other industries and are therefore better amenable to empirical observation. One of the aims is to shed more light on the link between learning and the dynamics of product innovation, as well as their influence on market structure. Learning with an old generation turns out to be an important determinant for product innovation. The further down the firm has moved on the learning curve, the higher its market share, and the larger becomes the probability that the firm is an early innovator. The results are consistent with the persistence of leadership hypothesis.     

Market Distribution of Potato Products in the United States

Abstract

Potatoes are the most important vegetable crop in the United States, accounting for 16 percent of all vegetable and melon farm cash receipts in 1998. However, little is known about the distribution of potato consumption across different marketing sectors, geographic regions, or population groups. Using data from USDA's 1994-96 Continuing Survey of Food Intakes by Individuals, this study examines the consumption distribution of six potato products in the United States. The analysis indicates that fast-food establishments and restaurants dominate the french fries market. There are distinct regional variations in the use of potato use. African Americans consume more potato chips and french fries, on a per capita basis, than other Americans. Senior Americans favor consumption of fresh and canned potatoes, while teenagers consume more chips and french fries than others.