105_31;梁树发00040002000100013     

-福 《饲料工业》2005,(7)

哿?8833,职工思想状况:2066,结构内力:1646,心灵境界:1625,利益追求:1623,企业的生存和发展:1419,有序化:1219,道德情操:1183,文化环境  相似文献   

rnal of Fujian College of Forestry29-33D046;DD046_     

林清洪- 《中国动物检疫》1989,(1)

? ,浙江省平阳县林业局毛竹;;竹笋;;经济效益通过三年六项技术措施的实施,使毛竹低产林的竹笋亩产量从24.7kg提高到733.1kg,亩产值从31.28元增加到936.26元,亩净产值从23.05元增加到869.73元,值得在毛竹产区广泛推广。Preliminary Report of  相似文献   

球根购买和种植注意事项     

玛格丽特-颜 《花卉》2017,(23)

<正>球根花卉的种植方法很简单,非常适合新手。因为植物生长所需的养分都储存在种球中,只需种在土壤中,春天一定会开花。现在又到了一年一度为美丽的早春球根花季做准备的时候了,很多球根店家已经开始预售,大概10~11月就可以陆续收到种球。简单几步,教你妥妥地种好球根。球根购买注意事项:1.选择靠谱的卖家。前几期花也杂志都有推荐靠谱的店家,还有很多优惠的活动。2.选一些常见的比较适合新手的球根,比如:郁  相似文献   

假装在法国——甘肃金昌花海攻略     

玛格丽特-颜昂昂 《花卉》2016,(10):29-35

第一天（7月29日）：金川科技馆金川植物园牵手林夜探紫金苑 原本以为到金昌下午5点多,会觉得天黑了,可是因为时差的关系,其实下了飞机你以为还只有下午3点。  相似文献   

Discussion of the Application and Foreground of Falling Water Aeration with the Process of Sewage Treatment          下载免费PDF全文

DENG Rong - sen  WANG Zuo - liang  WANG Tao 《保鲜与加工》2007,(1):78

The engineering design of sewage treatment plant for the Chongqing city, P. R. China is analyzed in this paper. Considering the situation of China and other projects, the characteristics of falling water reactor for the environment protection project and economy of investment is introduced ; the application and foreground of falling water aeration in the process of sewage treatment is discussed, such as Oxidation - ditch, SBR, and so on. The conclusion indicated that the falling water aeration can be designed and used as an independent aeration, and, it is an upgraded technology of sewage treatment which is adaptive for city water environment control in middle and small towns in China. The falling water aeration may reduce running cost of the sewage treatment plant, is adaptive for foothill and the mountainous areas, and reduces project investment and environments damage.  相似文献   

Measurements to Protect Owners'' Benefits under the Non-price Bottom Bidding          下载免费PDF全文

DAI Jia - li  FU Hong - yuan 《保鲜与加工》2007,(1):110-113

Investment on construction projects has become an important factor in improving the development of economy in China.The non-price bottom bidding is a representation that the investment on projects is becoming standardized.During the years of trying out the non-price bottom bidding,the colluding in bidding or bidding below the cost has happened several times,which have damaged the benefits of owners.To solve theses problems,this paper firstly studies the reason of these problems-the failure in the normal relationship between principal and agent.Then,some measures have been presented as follows: building systematic and scientific system of qualification prejudication,judging behaviors of colluding in bidding and bidding below the cost with reason and providing a surety mechanism of the project.The authors hope that these measures are beneficial to non-price bottom bidding.  相似文献   

Effects of Low- Intensity Ultrasound Treatment on Excess Sludge     

DING Wen - Chuan  LONG Teng - Rui  XU Long  LI Li  LIAN He - chuan 《保鲜与加工》2006,(3):74-77

In this study the influence of the low-intensity ultrasound treatment on excess sludge has been observed.The oxygen uptake rate(OUR),soluble chemical oxygen demand(SCOD),soluble total nitrogen(TN) and soluble total phosphorus(TP) were examined for three power levels of 0.03 W/mL, 0.05 W/mL and 0.1 W/mL as well as two time series of 0~5 min and 0~30 min.It showed that there were two stages of ultrasonic treatment: the first stage took place within the flocs in four minutes,in which SCOD,TN,TP were dissolved from flocs.In the second stage,the microbial activities have been strengthened,as well as OUR,TN,TP have increased greatly.  相似文献   

Strength and Microstructure of Sulphoaluminate Cement Containing Ultra- Fine CaCO3     

ZHOU Shi - hu  HUANG Jia - mu 《保鲜与加工》2006,(4):121-124

The existence of ettringite in sulphoaluminate cement hardened paste is mainly in the form of pole-like crystal,which causes unfavorable effect on the cement.In this paper the strength and microstructure of the sulphoaluminate cement containing ultra-fine CaCO_3 weze discussed.Experimet results show that the strength of sulphoaluminate cement was obviously improved by adding 3% of ultra-fine CaCO_3.After curing for 28d,the compressive strength of cement paste and mortar is 100.6MPa and 94.1MPa respectively,and the bending strength of the mortar reached 12.5MPa.SEM study on hardened paste of sulphoaluminate cement containing ultra-fine CaCO_3 showed that its structure was dense and homogeneous,there was hardly any massive crystall detected.  相似文献   

A Comparative Study of Confined Concrete Models under Cyclic Loading     

ZHOU Weng - feng  HUANG Zontg - ming  BAI Shao - liang 《保鲜与加工》2006,(3):59-62

In this paper,four models are selected as the representatives and applied to nonlinear dynamic analysis program for space frames which is based on the beam-column elements using the finite element flexibility method and the fiber model.Park's test on combined axial and bending columns under cyclic loading are taken as the calibrations,comparisons to material and structural member level are drawn and the analytical results of various models are discussed.  相似文献   

Design of Reef- blasting Project and Analysis of Regulation Effect for Fuling to Tongluo Canyon Reach in Three Gorges Reservoir Region     

LUO Hong  ZHU - Jun - feng 《保鲜与加工》2006,(5):47-50

After the completion of the Three Gorges project,the navigation conditions of the reservoir region will be improved evidently,which has laid the foundation for straight run of the 10,000-ton-class fleet to Chongqing Port,and is the promotion of the development of shipping in Yangtze River.But according to the standard of the 10,000-ton-class fleet,there are still some reaches of the reservoir region can not meet the requirements of the waterway on smooth and safe navigation.Therefore,some regulation measures should be adopted to eliminate these obstructions.It is one of the important parts in the reservoir region waterway regulation work for the Fuling to Tongluo canyon reach blasting project.30 reef obstacle blocks of 14 reaches in this project were removed by blasting.Based on the analysis of obstruct features of various rocks,according to the standard of the 10,000-ton-class fleet,the design parameters and blasting regulation program were put forward,and the regulation effect is analyzed and forecasted.  相似文献