Search results

Contents and sources of Zn In JIaozhou Bay Dongfang Yang1, 2, 3, a, SIxI Zhu1, 2, Fengyou Wang1, 2, XIuqIn Yang1, 2 and Huazhong He1, 2 1Research Center for Karst Wetland Ecology, GuIzhou MInzu UnIVersIty, GuIyang 550025, ChIna; 2College of ChemIstry and ScIence, GuIzhou MInzu UnIVersIty, GuIyang 550025, ChIna; 3North ChIna Sea EnvIronmental MonItorIng Center, SOA, QIngdao 266033, ChIna adfyang_dfyang@126.com Key words: Zn, DIstrIbutIon, Source, PollutIon level, JIaozhou Bay.
The purpose of thIs paper was to analyze the content, dIstrIbutIon and source Zn In 1982, and to provIde background materIal for envIronmental protectIon and remedIatIon.
MaterIal and method JIaozhou Bay (35°55′-36°18′ N, 120°04′-120°23′ E) Is a semI-closed bay located In the south of Shandong ProvInce (FIg. 1).
Acknowledgement ThIs paper was sponsored by EducatIon MInIstry's New Century Excellent Talents SupportIng Plan (NCET-12-0659), Project of OutstandIng TechnologIcal Educators of Governor of GuIzhou ([2012]71), Project of Low Carbon Technology Plan of GuIyang (2012205]), Project of  ScIence and Technology FoundatIon of GuIyang (LKM[2012]05), SpecIal Research Projects of HIgh Level Talents of GuIzhou ProvInce (TZJF-2011-44), and Research Projects of GuIzhou NatIonalItIes UnIVersIty ([2014]02).
(In ChInese) [2] WeI JIao, Shaoyong Lu, Guangde LI, XIangcan JIn, HuI Yu and MInmIn CaI: ChInese Journal of ApplIed & EnvIronmental BIology, Vol. 16(2010), p. 577-580.

Experimental Study of Stress-Strain Curves of Lightweight Aggregate Concrete Xiang Liua， Jiangtao Kong b (Architecture and Civil Engineering School, Inner Mongolia University of Science and Technology, Baotou 014010, China ) a liuxiangwd@126.com, bkjtao614@163.com Keywords: Lightweight Aggregate Concrete; Stress-Strain Curves; Mechanical Properties Abstract.
Concrete material in axial compression is the basic physical mechanical performance of concrete material, and is the main basis for researching bearing capacity and deformation of concrete construction.
Experiment contents Experiment material Lightweight aggregate concrete Cement ：42.5 ordinary portland cement Sand ：natural river sand （to reduce concrete unit weight, sift out sand by 5mm square hole sieve ) Aggregate ：sinter flyash ceramisite （grain composition 5—16mm） Admixture：B3-1 pumping admixture (Consisting ofwater reducer, retarder, early strength agent, air entraining agent) Common concrete Cement ：42.5 ordinary portland cement Sand ：natural river sand Aggregate：breakstone（grain composition 5—40mm） Admixture :B3-1 pumping admixture (Consisting of water reducer, retarder, early strength agent, air entraining agent) Mixed proportion Table 1 1m3 concrete mix proportion (kg) strength grade cement fly ash sand aggregate admixture water LC30 340 50 525 975 5.9 160 LC40 400 80 500 940 7.8 160 C30 320 50 740 1160 5.2 160 C40 370 80 717 1123 5.8 160 Experimental process To eliminate the effect of uneven vertical stress and horizontal friction restriction
But for axial compression test of concrete prism, if the experiment use universal material tester,the steady ascent of stress-strain curve is easy to measure.
Stress2Strain Curves of Nor2 mal and Lightweight Concrete in Compression ,Journal of The American Concrete Institute ,v75 ,n11 ,Nov ,1978 ,pp. 603 - 611

Many factors affect the industry price, such as consumer purchasing power, the role of competitors, government interference, raw materials import and export conditions.
Product costs involve raw materials, labor, technology investment and fixed assets.
Acknowledgement The National Science Fund Project of China(71072074) ;the National Science Fund Project of Heilongjiang Province(G201123) References [1] Y.L.Fu.
Journal of Xiamen University(Arts & Social Sciences),2(2003)
Industrial Engineering Journal,4(2000)

Control System Design for a Manipulator Model Zhou Peng Zaozhuang Vocational College of Science and Technology Keywords: manipulator; object teaching; design Abstract.
It can replace worker achieve a variety of work, such as transportation of workpiece material, components assembly, cutting, spraying, etc.
It can replace workers achieve a variety of work, such as workpiece material transportation, components assembly, cutting, spraying, etc.
Manipulator can increase the machining efficiency, improve the degree of automation in the process of production, such as automaticly change tool, transfer material, can replace workers to finish dangerous or difficult work in high pressure, high temperature, dust and other harsh environment avoiding accidents from fatigue or negligence by workers, can reduce human labor directly, accurately control the tempo of production, easy to implement line production.
Xi 'an education college journal, 2004 [5] Peng Zhou, Supervisor:Zhongming Wu, Teaching Model Design of the Carrying Manipulator and the PLC Controll system, Engineering Master Thesis, Shandong: Ocean University of China,2011.

Material and Methods 2.1.
International Dairy Journal, 2004, 14(1): 17-27
International dairy journal, 2006, 16(7): 740-9
Journal of Food Protection®, 1996, 59(7): 723-6
Journal of food protection, 1993, 56(3):211-214

Materials and Methods Plants The Sophora japonica ‘Golden stem’ (grafted with Sophora japonica as rootstock)was placed in the plastic cask (height 25cm, upper inner diameter 24cm, down inner diameter 18cm).
Journal of Xinjiang Agricultural University 30(2):5-8
Anhui Agricultural Sciences 34(7):1292-1294,1318
Hebei forestry science and technology, (1):9-11 [12] Zhang W.
Journal of Zhejiang Forestry University , 26(2):182-187

Materials and Methods Experimental desigh Non-axenic strains of Alexandrium tamarense PLY173 were obtained from the National Marine Environmental Monitoring Center (NMEMC), State Oceanic Administration (SOA), Dalian, P.R.
Anderson (eds.), “Toxic Marine Phytoplankton,” Elsevier Science New York,1990, pp.29-40
,” Journal of Phycology, vol. 38, 2002, pp.961-970
[23] GB3097-1997, “National Seawater Quality Standard of China,” China Environmental Science Press,Beijing,1998, pp.1-7.
Canadian Journal of Microbiology, vol. 8, 1962, pp.229-239

These specifics aid in lowering cycle times, saving materials, and preventing product flaws
Materials Today: Proceedings, 2017. 4(2, Part A): p. 1423-1433
Polymer Engineering & Science, 1987. 27(18): p. 1345-1357
Journal of Materials Processing Technology, 2002. 122(1): p. 112-126
Archives of Metallurgy and Materials, 2017. vol. 62(No 2)

Here is presenting the functionality of the home-built apparatus for testing gas transport through nano-pores materials.
Bulletin of the Polish academy of science, Technical sciences, 60, 2012
Journal of Applied Physics, 81:2094-2100, 1997
Elsevier Science B.V, Amsterdam, 1990
Journal of Applied Physics, 93(8):4870-4879, 2003.

This provides a valuable tool for quality control and assessment of earthen construction materials.
Compressive strength is an important property to consider in construction materials, earthen materials included.
Radeljić, Earthen construction materials as enabler for circular construction, Iop Conference Series Earth and Environmental Science 1078(1) (2022) 012065 [4] C.
Ighalo, Predicting the compressive strength of concrete by ultrasonic pulse velocity, IOP Conference Series: Materials Science and Engineering, vol. 1036, no. 1, (2021) 012053 [9] B.
Corbu, Opportunities regarding the innovative conservation of the romanian vernacular urbanistic heritage, International Journal of Conservation Science 14(3) (2023) 913-936