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1.
以30个加工番茄品种为试材,对产量及其构成因素,生育期性状,形态性状进行了典型相关分析;针对新疆自治区的生态条件,栽培技术和品种资源现状,提出了加工番茄早熟和丰产品的模式;并对早熟和丰产品种的生育期因子和形态性状进行了优化。  相似文献   

2.
我国有着丰富的秸秆资源,如何将秸秆资源通过一定的加工处理转化成商品是专家学者一直关注和探讨的问题,本文对其进行了初步的研究,采用揉碎加工的方法改变秸秆的形态,研究证明,此加工方法是可行的。以便为后续产品的加工成为可能,从而实现秸秆的市场化。  相似文献   

3.
茶叶在肉制品加工中的应用,主要形态有:茶叶、茶汤、茶末、茶粉和速溶茶等,本文所指技术要点是指在肉制品生产工艺流程中对茶叶的加工处理,以及达到产品设计的概念要求。在肉制品加工中的应用对茶叶处理主要有8种方法:渍制、熏制、卤制、煮制、蒸制、爆制、拌制、撒制。  相似文献   

4.
介绍一种使粉碎、搅拌,制粒三种功能组合的饲料加工机械的设计。它能使饲料业者自己加工各种形态,多种用途的饲料,提供了技术装备;为饲料生产与饲养一体化创造条件,从而推动“菜蓝子工程”中饲养业的快速稳定发展。推广应用这种设备有其现实意义。  相似文献   

5.
以30个加工番茄品种(系)为试材,对产量及其构成因素、生育期性状、形态性状进行了典型相关分析;针对新疆自治区的生态条件、栽培技术和品种资源现状,提出了加工番茄早熟和丰产品种的模式;并对早熟和丰产品种的生育期因子和形态性状进行了优化  相似文献   

6.
本文在介绍天南星形态特征和生长习性的基础上,总结了旱地天南星地膜覆盖栽培技术,包括地块选择、茬口安排、整地施肥、品种选择、繁殖方法、田间管理、病虫害防治、采收加工等内容,以期为旱地天南星地膜覆盖栽培提供技术参考。  相似文献   

7.
天门冬的栽培与加工   总被引:1,自引:0,他引:1  
本文介绍了天门冬的形态特征、生长习性、栽培技术及采收加工.  相似文献   

8.
农产品加工产业集群的动态演化分析   总被引:1,自引:0,他引:1  
根据农产品加工产业集群内企业间的竞合度和集群知识依存度,将农产品加工产业集群分为资源型、链条型和循环型,并分析了3种类型产业集群的特点;指出农产品加工产业集群由低级形态向高级形态演化是集群内企业结构最优组合、集群突破发展瓶颈和防范衰退风险以及集群保持持续竞争力的必然选择;深入剖析了农产品加工产业集群的演化路径,即从资源型到链条型再到循环型不断升级的过程.  相似文献   

9.
1.原料 选择果实形态端正,大小接近,成熟度及色泽较一致,且籽少、无中空的草莓鲜果作加工原料。[第一段]  相似文献   

10.
铁皮石斛的形态特征与设施栽培技术   总被引:1,自引:0,他引:1  
冷春鸿  张征  吴志刚  王义  陶正明 《农技服务》2010,27(4):510-510,512
阐述了铁皮石斛的形态特征、设施栽培技术及采收加工方法。  相似文献   

11.
Chemical analyses of 51 metal artifacts, one ingot, and two pieces of intermediate processed material from two Late Post Classic archeological sites in the Huastec area of Eastern Mesoamerica point to a second production locus for copper-arsenic-tin alloys, copper-arsenic-tin artifacts, and probably copper-tin and copper-arsenic bronze artifacts. Earlier evidence had indicated that these bronze alloys were produced exclusively in West Mexico. West Mexico was the region where metallurgy first developed in Mesoamerica, although major elements of that technology had been introduced from the metallurgies of Central and South America. The bronze working component of Huastec metallurgy was transmitted from the metalworking regions of West Mexico, most likely through market systems that distributed Aztec goods.  相似文献   

12.
用逐步回归分析的方法,建立了秦陵三棱铜镞任一主面的数学模型,分析了铜镞主面的几何形状;并利用坐标的旋转变换,求得另两个主面的数学模型。在此基础上导出了三条主刃的数学模型,并对铜镞主面沿横向的凸性作了定量分析。  相似文献   

13.
The presence of indium in a nodule of cassiterite from the State of Guerrero increases the probability that ancient tin and bronze artifacts from Guerrero, which contain indium as an impurity, were made locally from metal extracted from local tin ore.  相似文献   

14.
通过对秦陵出土的铜车、铜马、铜俑等大量文物的测量与考证,论述了秦代制造工艺的标准化发展水平.  相似文献   

15.
陈静芬 《河北农业科学》2007,11(5):88-89,91
按照《绿色食品产地环境质量标准》,2005~2006年对安徽省萧县44个土壤样品中污染物重金属(汞、铅、砷、镉、铬和铜)含量进行了检测,采用单因子指数法和N.L. Nemerow综合指数法对检测结果进行评价.结果表明:萧县绿色食品基地土壤6种重金属元素含量均在标准规定范围内,7个乡镇的土壤环境质量均为一级,达到安全清洁水平.  相似文献   

16.
篆隶是汉字由篆书向隶书演变的过渡字体。镜铭篆隶既表现了秦汉篆隶书体半篆半隶的特点,又运用省略、连笔等方法产生了大量的一字多形的篆隶体。镜铭篆隶一方面表现了隶变的进程,另一方面又滞后于简帛文字和同时期的其它青铜器文字,究其原因是受到了铜镜的工艺性特点与镜铭文字追求装饰美的影响。  相似文献   

17.
Bayard DT 《Science (New York, N.Y.)》1972,176(4042):1411-1412
Electron probe analysis of the earliest metal found at the northeastern Thailand site of Non Nok Tha indicates that it is a bronze containing 4 to 6 percent tin. Recent thermoluminescence dates substantiate the presence of a well-developed bronze technology prior to 2300 B.C. and suggest a date of about 2700 to 2500 B.C. for the first appearance of bronze at the site.  相似文献   

18.
We report the observation of the spontaneous separation of vertically vibrated mixtures of fine bronze and glass spheres of similar diameters. At low frequencies and at sufficient vibrational amplitudes, a sharp boundary forms between a lower region of glass and an upper region of the heavier bronze. The boundary undergoes various oscillations, including periodic tilting motion, but remains extremely sharp. At higher frequencies, the bronze separates as a mid-height layer between upper and lower glass regions, and the oscillations are largely absent. The mechanism responsible for the separation can be traced to the effect of air on the granular motion.  相似文献   

19.
以炭河里西周古城为代表的炭河里文化的发现不仅填补了湖南西周时期历史的空白,而且因为解决了湖南出土商周青铜器性质和地方青铜文明的形成等问题,证伪了史学界关于湖南历史上不曾经历奴隶社会的主流观点,对于重新建构湖南先秦地方史的结构体系有重大意义。  相似文献   

20.
We have studied the formation kinetics of the copper-tin alloy bronze when tin is deposited on the (111) surface of copper at room temperature. Low-energy electron microscopy and atomic-resolution scanning tunneling microscopy reveal that bronze forms on the surface by a complicated, unanticipated cooperative mechanism: Ordered two-dimensional tin islands containing several hundred thousand atoms spontaneously sweep across the surface, leaving bronze alloys in their tracks. We propose that this process, driven by surface free energy, is a version of the "camphor dance" observed on liquid surfaces, and should be a general mechanism of surface alloying when surface diffusion is faster than exchange into the substrate.  相似文献   

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