Search results

Effects of sewage sludge compost on the physicochemical properties of the aeolian sandy soil Jie Wang1,2 a, Fengde Tang1 and Yanli Yi2,b 1Colledge of Environmental Sciences,Liaoning University,Shenyang,110036,China 2Colledge of Land and Environment,Shenyang Agricultural University,Shenyang,110866,China awangjie811226@163.com, bCorresponding Author,yiyanli@126.com Keywords: Sewage Sludge Compost;Physicochemical Properties ;Soil Fertility Abstract.
In general, there are three kinds of disposition ways for sewage sludge:ocean disposal which has been prohibited since 1988,burning method and land utilization[5].The sewage sludge contains aboundant nutrient substance of N,P,K and OM,which are the essential elements for the growth of plants.Many studies showed that the addition of organic materials could promote the evolution of benign structure of soil[6],adding organic material to the soil is an important way to improve soil fertility.The use of sewage sludge in agriculture and land reclamation is increasingly identified as an important issue for soil conservation in semi-arid climate zones[7-9].
Materials and Methods Materials The sewage sludge used in the experiment was collected from the Northern Shenyang Wastewater Treatment Plant,the sewage sludge had been treated through aerobic composting.The composted sewage sludge had a loose structure,small bulk density,which could be seen as a good fertilizer.The sewage sludge compost’s characters were:the concentrations of available N,P,K and OM were 4.27 g∙kg-1,174.48 mg∙kg-1,182.50 mg∙kg-1 and 17.7% ,the pH value was 6.40,the electrical conductivity was 4.25 ms∙cm-1.
Chinese Journal of Ecology 23(2004) 86~89 .
Soil Sciences.The Chinese Agric.

Experimental analysis of minimum ignition temperature of dust cloud obtained from thermally modified spruce wood Jaroslav Zigo1,a*, Peter Rantuch2,b , Karol Balog3,c 1,2,3Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Institute of Safety, Environment and Quality, Paulínska 16, 917 24, Trnava, Slovakia ajaroslav.zigo@stuba.sk, bpeter.rantuch@stuba.sk, ckarol.balog@stuba.sk Keywords: minimum ignition temperature, dust cloud, thermally modified wood, spruce dust Abstract: This article deals with study of minimum ignition temperature (MIT) of thermally modified spruce dust.
Introduction Wood, a composite of cellulose, hemicelluloses, lignin, and extractives, is commonly used as engineering and structural material.
Material and Methods For this experiment the samples of spruce dust of several different species were mixed, processed by sieve analysis and dried.
As Martinka et al.[12] suggests, it is necessary to examine the influence of the form of material (compact form, dust, and pressed dust).
Balog: Assessment of the impact of heat flux density on the combustion efficiency and fire hazard of spruce pellets, European Journal of Environmental and Safety Sciences Vol 1 (2013) p.24–31 [8] M.

Introduction Magnesium alloys are more and more widely used as structural materials since the 1990s.
In the process, the value metal extracted from the source material is dissolved in the excess molten metallic solvent and is subsequently extracted as a vapour by vacuum distillation.
Acknowledgements The present work was supported by the National Natural Science Funds of China (No.50725413), the Major State Basic Research Development Program of China (973)(No.2007CB613704), the Chongqing Science and Technology Commission in China (CSTC, 2010AC4085, 2009AB4134 and 2006AA4012-9-6), the Chongqing Education Commission in China (KJ090628) and the Program for Hundreds of Distinguished Leading Scientists of CQ CSTC (2010CSTC-HDLS).
Xie: Chinese Journal of Rare Metals (in chinese) Vol.28 (2004), p.750
Wei: Materials for Mechanical Engineering (in chinese) Vol.33 (2009), p. 83

Solidification Structure Characteristics and Mechanical Properties of (Ag-Cu28)-25Sn Alloy Ribbons Prepared by Melt Spinning Method Liangfeng Li1, a, Tai Qiu2, b, Jian Yang2, c and Yongbao Feng2, d 1State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials, Southwest University of Science and Technology, Mianyang 621010, China 2College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China aliliangfeng2005@163.com, bqiutai@njut.edu.cn, cyangjian1976@163.com, d fengyongbao@163.com Keywords: (Ag-Cu28)-25Sn alloy, melt spinning, solidification structure, melting property, microhardness Abstract.
Introduction Traditional vacuum welding materials are almost the organic compounds, which will lose effectiveness when working at 350°C for long time because of easy ageing.
So the intermediate temperature alloy solders with melting temperature of 400~600°C have recently become of great interest owing to their potential use as novel vacuum welding materials.
Feng: Advance Materials Research Vol. 79-82 (2009), p. 449 [5] C.
Chuck: CHINESE JOURNAL OF MATERIAL SRESEARCH Vol. 17 (2003), p. 92 [10] J.

Material characterization.
Creep and thermomechanical fatigue of functionally graded inconel 718 produced by additive manufacturing // Minerals, Metals and Materials Series, Volume Part F12, (2018), 85-97
Microstructure and mechanical properties of additive manufactured copper alloy // Materials Letters, Volume 179, (2016), 38-41
Newborn // Powder metallurgy of advanced titanium alloys // Key Engineering Materials 77–78, (1993), 115–140
Thermal Plasma Spheroidization of High-Nitrogen Stainless Steel Powder Alloys Synthesized by Mechanical Alloying // Metals and Materials International, Volume 24(2), (2018), 363-370

Acknowledgements The work was financially supported by the National Natural Science Foundation of China (Grant No. 51002028), the Natural Science Foundation of Hebei Province of China (Grant No.
Sen, The Journal of Physical Chemistry B Vol. 118 (2014), p. 2284 [2] Z.
Safdar, ACS Applied Materials & Interfaces Vol. 6 (2014), p. 9550 [3] T.
Tena-Zaera, ACS Applied Materials & Interfaces Vol. 6 (2014), p. 2836 [4] Z.
Gates, ACS Applied Materials & Interfaces Vol. 5 (2013), p. 9546 [9] O.

Balela1,b* 1Sustainable Electronic Materials Group, Department of Mining, Metallurgical, and Materials Engineering, University of the Philippines Diliman, Quezon City, Philippines abyrezaga@upd.edu.ph, bmlbalela1@up.edu.ph Keywords: Silver, nanoparticles, halides, room-temperature sintering, printable electronics.
Progress towards development of all-printed RFID tags: Materials, Processes, and Devices”,  Proceedings of the IEEE 93 (2005) 1330-1338
Balela, In situ electrochemical study of copper nanoparticles stabilized with food grade gelatin, Key Engineering Materials 705 (2016) 163-167
Improvements in the electroless deposition of Ag nanowires in hot ethylene glycol for resistive touchscreen device, Materials Research Bulletin 106 (2018) 446-454
Sintering of silver nanoparticles at room-temperature for conductive ink applications, Key Engineering Materials 775 (2018) 144-148

Manufacturing Technology of Strengthened Poplar Veneers Zhu Xiao-dong1, a, Wang Feng-hu1, b, Cao Jun 1, c and Sun Jian-ping1, d 1 Key laboratory of Bio-Based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, China a pse4646@126.com, bfenghuwa@hotmail.com.cn, ccaojun@126.com, d sjp_jpcn@163.com Keywords: poplar veneer; strengthen; manufacturing technology; mixed resin Abstract.
Currently, wood-plastic composite materials research and development focused on two aspects: one research is the graft polymerization and distribution of monomer in the wood use of advanced instrument, which provide a theoretical basis for further modification of wood-plastic composite material; the other hand, research fasten on explore the wood-plastic composite material production process, improve the performance of WPC [2].P.
Experimental Materials (1) Styrene: molecular formula C8H8, molecular weight 104.15, solid content (GC)% ≥ 98.0%, specific gravity range of 0.906-0.909, China Shenyang Dongxing Reagent Factory production
(2) Drying Equipment DHG-9070A-type electric constant temperature drying oven (Shanghai Science and Technology Co., Ltd production of a constant), temperature range: 0 ~ 255 ℃, as shown in Fig. 2
References [1] Tie Zhen:China Forestry Vol. 4 (2001), p. 41 [2] Tang Jia-wei:World Plastic Vol. 22 (2004), p. 45 [3] P．S．Razi A．Raman: Journal of Composite Materials Vol. 34 (2000), p. 980 [4] Elias Hanna Bakra ji，Numan Salman，Haroun Al-kassiri: Radiation Physics and Chemistry Vol. 61 (2001), p. 137 [5]Ümit C.Yildiz，Sibel Yildiz，Enqin D.

Nowadays, the reinforcing materials in polymer composites are typically carbon fibers (CF).
Carbon fiber (CF) is a kind of non-metallic materials.
Experimental 2.1 Materials Poly (butylene succinate) (PBS) with a density of 0.91 g.cm-3 and MI of 4.5g/10 min (130°C, BIONOLLE 1903MD) was provided by Showa Co.
Journal of composite materials, 2009，26(3)：50-54
Materials engineering, 2005(11)：50-57

Citation & Copyright (to be inserted by the publisher ) Plasma Etching for Fabricating the Concave-type DRAM Capacitors Hyoun Woo Kim � � � � School of Materials Science and Engineering, College of Engineering, Inha University 253 Yong Hyun Dong, Nam Ku, Incheon 402-751, Korea Keywords: Etching, Concave, Capacitor Abstract.
As an electrode material for both BST and PZT capacitors, various materials such as platinum (Pt), iridium (Ir), ruthenium (Ru), and ruthenium oxide (RuO2) have been studied.
We etched the Pt, PR, and SiO2 layer concurrently and etch rates of the three materials are recommended to be almost equal.
Pt or Ru is applied as an electrode material.
Depending on the electrode material, we have developed the different etching technologies and have employed the different protective materials.