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The reference crop evapotranspiration(ET0) in Guanzhong region was calculated with the Penman-Monteith equation. The change characteristics of meteorological factors and ET0 over year were analyzed. The regressing relation between ET0 and geography factors was established. Space distribution of ET0 based digital elevation model was obtained. The water consumption model of main cropes was established using the crop cofficient method. The irrigation water requirement of main crop and it's space distribution based DEM under the different precipitation probability was obtained, which advanced the calculation precision of ET0 from spot scal to regional scal. The concept of water consumption under the irrigational scal was proposed. The water consumption model of different water user and model of groundwater balance based on the water consumption of Baojixia irrigation district was established. Which can refects the relation between water utilization, water consumption and change amount of groundwater resouces.

深入分析了关中地区气象要素的变化趋势,用Penman-Montainth 公式计算了参考作物蒸发蒸腾量(ET0),建立了ET0与地理要素的多元回归关系,获得了基于数字高程模型DEM的关中地区ET0的空间分布图;用作物系数法建立了关中主要作物生育期耗模型,获得了主要作物在不同降雨条件下的灌溉需,以及基于DEM的主要作物灌溉需空间分布图,提高了作物蒸发蒸腾量由点到面尺度转换过程中的估算精度;界定了灌区尺度的耗量的概念,包括用和非用,建立了灌区耗量计算模型及基于耗量变化的浅层地下均衡模型,能较好地反映灌区引量、耗量及地下蓄变量之间的内在关系。

Water, he thought, hearing the soft splash of a lawn sprinkler; to taste the water of home, the full cool water of the valley, to have that simple thirst and that solid water with which to quench it, fulfillment, the clarity of life.

他听到草地上洒装置轻微的洒声,就想到了;他要嚐嚐家乡的,河谷里冰凉的,口渴时喝下那种纯净的就可以止渴,他会感到满足,也会感到生命的清澈。

The research result shows that the flowability, moldability, cohesiveness of high performance concrete of hill sand are significant by comparison with ordinary concrete on mechanical properties, long term properties, and durability. Motar flowability decreases with the increase of single-mixed active additive. The flowability can be largely improved by double mixing of active additive and super plasticizer NF. This is because not only the active additive has filling effect but also the dispersing effect induced by surface action between additive and super plasticizer NF. And the optimal content of materials are: super plasticizer NF≥0.8%, fly ash 20%, PS 20~30%,zeolite powder≤20%,SF 5~8%; The negative influence of hill sand powder should be avoided by controlling of powder content and the use of active additive and super

研究表明:随着单掺活性掺合料掺量的增加,砂浆流动性减小,活性掺合料与萘系高效减剂NF双掺使用,比使用同样剂量萘系高效减剂NF的基准浆体流动性明显增大,这是由于玻璃体材质活性掺合料不仅有填充效应,更主要的是它与高效减剂之间的表面物化作用产生了分散性,而活性掺合料对浆体的流化作用效果主要是依赖于其分散性;能有效改善胶砂流动性的适宜掺量为:萘系高效减剂不小于0.8%,粉煤灰掺量为20%,PS掺量为20~30%,沸石矿粉掺量不宜大于20%,SF掺量为5~8%;通过对粉末含量的限制,并借助活性掺合料、高效减剂的合理使用,就可以避免山砂粉末含量的负面影响,配制出密实度高,抗渗性能优异,具有良好的耐久性能,并具有良好的体积稳定性的山砂高性能混凝土。

The tensile strength of CPE vulcanizates modified by in situ formed NaAA and LiAA is more than 30MPa and 28MPa, respectively.

原位合成丙烯酸盐改性CPE硫化胶在电解质溶液中的吸膨胀率比在去离子中低得多,浓度越高这种效应就越强烈;温度提高可使硫化胶的吸膨胀速度提高,在常温到60℃之间,吸膨胀率随着温度的提高而增大,但超过60℃平衡吸膨胀率则随着温度的提高而降低;硫化胶的吸膨胀过程并不是单一的菲克扩散,其中还包括聚丙烯酸盐和橡胶分子链的松弛。

This paper mainly deals with these two parts:l.the effect of hydrosoluble HP,fibermesh and FDN on cement mortars bend resistant strength and compressive strength under the same operating conditions and with different HP mixtures;2.the effect of HP,FDN moderator,fly ash on the durability of concrete.that is the performance of resisting osmose,erosion and freeze thawing.

研究了HP溶性高分子"纤维"、FDN高效减剂与粉煤灰双掺配制的高性能混凝土的耐久性(抗渗透、抗硫酸盐侵蚀、抗冻融性能)。试验结果表明:HP溶性高分子"纤维"对泥砂浆和混凝土具有显著的增韧、增强作用,且泥砂浆的抗压强度随着HP溶性高分子"纤维"掺量的增加(2%-6%)而提高,抗折强度则降低;在混凝土中加入HP溶性高分子"纤维"后,抗压强度随着掺量的增加2。

Gentleman orchid drenchs rot the root dies after water, the likelihood has the reason of two respects, it is basin earth too wet, because gentleman Lan Xihuan is loose,understand the edaphic requirement that appear, once basin earth is medium moisture is too big, its bulky flesh pledges the root arrived to will come in October between November, already entered stop to grow or grow very slow condition, do not need how many moisture, need to hold basin ground only wet can, drench water causes those who rot the root is unavoidable too much; 2 it is you drench when water, flow into the phyllome center of plant the dirt that will have smudgy part along with all the others, and at this moment water of blade rising bad news is less, sewage accumulating is inside Xie Cong, also can choose sodden heart sodden root.

君子兰淋后烂根死亡,可能有两个方面的原因,一是盆土过湿,因君子兰喜欢疏松通透的土壤条件,一旦盆土中分过大,其粗大的肉质根到了10月至11月间,已进入停止生长或生长很慢的状态,不需要多少分,只需要保持盆土湿润即可,淋过多造成烂根是在所难免的;二是你淋时,将会有脏污成分的尘土等一并流入植株的叶丛中心,而这时叶片蒸腾耗较少,脏积在叶丛内,也会选成烂心烂根。

The study on the hardening mechanism of the soft soil with the materials shows that the hardening procedure can be divided into three stages:(1). Hydrating and dissolving stage, when material A and material B of the high-water-content and quick-setting materials respectively dissolve and balance in water.(2). Gel and consolidating stage, when the materials hydrate into calcium crystal and the ion exchange and aggregation of soil particles occur in an alkaline environment.(3). the structure developing stage, when the calcium crystals connect each other, absorb and crystallize the water around; the hydrate remnants, calcium hydroxide, carbonate continuously in water and in the air.

本文对高速凝材料-软土硬化机理的研究表明,高速凝材料-软土的硬化过程可分为三个阶段:①化溶解阶段:主要为高速凝材料的甲、乙料分别与的溶解、维持平衡阶段;②胶凝固化阶段:主要为高速凝材料的化反应生成钙矾石晶体以及土颗粒在碱性环境中发生离子交换和团粒化作用;③强度增长阶段:钙矾石晶体相互连接,大量吸收周围环境中的分,并将分变成自己的结晶化残余物氢氧化钙在中和空气中发生碳酸化作用。

Design : we have set up a Fire Fighting Equipment Engineering Design Research Institute , and a Fire Fighting Engineering Technology Re - search Center cooperated with 6 domestic famous universities and science and technology research institutes and experiment base etc Jiangsu Fire Fighting Products and Fireproof Material Professional Committee 15 found in our company We have class A design quali cationfor reghting engineering issued by the State Construction Department and the Ministry of Public Security There are more than 20 senior engineers , 100 engineers and 100 experienced technicians in ourcompany We have a CAD -computer - aided design network system equipped with 160 computers A large space multi-functional relaboratory center , constructed with 40000000yun investment and with total area up to 5000 square meters , has passed the acceptance test and approved by the National Quality Technology Supervisory Bureau It has more than ten kinds of international standards engineering application laboratories , such as , gas systems , water systems , marine systems , foam systems ,redetection systems , large space fire extinguishments , transformer room , tunnel , container etc A remote control and computer inspection system 15 set up in the center We have fire protection design ability for any huge construction projects We have successfUlly finished one item ofstatehigh-tech product industrialization promotion program , three state level TOrch Programs , and six state major new products programs , among which , six kinds of products have gained stafe pafents We also formare research center with six national universities to undertake hightechnical reinvestigation

研发设计:南消股份拥有国家建设部颁发的甲级消防工程设计资质,公司与国内多所著名高校建立了科技战略合作伙伴关系,并建立产学研联盟。公司技术中心是江苏省唯一省级消防工程技术中心,设有气体灭火、灭火、泡沫灭火、工程设计、火灾报警、工艺研究等数十个专项研究室和中试基地,江苏省消防产品和防火材料专业委员会也设在本公司。公司技术中心拥有200多名经验丰富的科技人员,配备了先进CAD计算机辅助设计网络系统,已经具备承担任何大型和特大型项目的消防工程设计,完成了多项国家高新技术产品产业化推进项目、国家级火炬计划项目和国家重点新产品项目,公司的众多产品拥有自主知识产权的专利。产品制造:南消股份加工设备先进,工艺手段完善,计量设备精确,检测设施齐全。拥有产品数控加工中心、玻璃球洒喷头装配测试线、数控机床加工生产线、数控管道切割线、油漆喷涂自动线、火灾报警产品装配、调试、检测线,以及各类性能先进的检测线。公司主要产品有:高、中压细雾自动灭火系统;高低压CO2、IG-541、 HFC-227等各类固定气体自动灭火系统;探火管自动灭火系统;各类无管网自动灭火系统;固定式、移动式泡沫灭火系统;各类自动喷灭火系统;各类消防炮;各类船用消防产品;多功能救援快艇;各类火灾报警控制器;各类普通灭火器等300多个品种的系列消防产品,是中国消防行业生产品种最全,制造能力最强的企业。公司在同行业当中率先通过了ISO9001质量体系认证,船用产品形式认证,系统产品率先通过UL认证、FM认证。

The relationship between water tree growth speed and its influence factors, such as aging time, frequency of electrical field, and relative permittivity, was studied in this paper.

按照建立的树枝老化试验装置和方法标准,本文对低密度聚乙烯和聚甲基丙烯酸甲酯两种固体片状材料进行了树枝老化规律的试验研究,重点研究了低密度聚乙烯材料中树枝引发和发展的影响因素和规律,包括盐溶液的浓度对低密度聚乙烯中树枝形态的影响,老化时间、外施电压频率、盐溶液的电容率与树枝生长速度的关系。

A 5. 5h anti-impinge test indicated that the whole technical process had a better anti-impinge ability The feasibility modeling test of water quality showed that the quality of reclaimed water after the treatment by the above process, when used as supplementary circular cooling water and boiler water, met the nation standards in the respect of corrosion, scaliness and bacteria breeding, and even better than the normally used cooling water.

以炼厂实际外排污为原,通过两期力负荷分别为0.2m3/h和0.5m3/h中试规模测试,当本工艺处理力负荷0.5m3/h、力停留时间1.49h,污中COD、氨氮、石油类、悬浮物、挥发酚的浓度变化分别为44.07~102.13mg/l、28.37~50.01mg/l、4.68~19.36mg/l、7.2~34.5mg/l、0.14~0.31mg/l时,平均去除率分别达到94%、96.1%、91.9%、98.2%、100%,出各项指标均符合循环补充质要求;且通过5.5h抗冲击实验结果显示,整体工艺具有较强的抗冲击能力。

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