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Effect of La and La+Sr on Structure and Properties of ZL101A MI Guofa a , WANG Ying b and WEN Tao c School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454001 China a peter@hpu.edu.cn, b lxcwy@hpu.edu.cn, cwentaoyouxiang@163.com Keywords: ZL101A alloy; modification; structure; property Abstract.
Experimental Materials.
Rare Earth Information (2003), p. 18(In Chinese) [7] Thompson S, Cockcroft S L and Wells M A.Materials Science and Technology (2004), p. 194 [8] S.
Shahri.Journal of Materials Science (2004), p. 2023 [9] E.
Materials science forum(2000), p. 349 [12]Yang Jun-jun, et al.

In order to compensate the negative τf of ZMT base materials, CaTiO3 (εr = 170, Q = 3,600 at 7GHz, τf = 800 ppm/°C) [10] was used as modifier.
Experimental Method The starting materials ZnO, TiO2, MgCO3, CaCO3, B2O3 and SiO2 were reagent grade powders with 99.9% purity.
(Zn0.65Mg0.35)TiO3 base materials and CaTiO3 were first synthesized by conventional mixed-oxide process, respectively.
The CBS-doped ZMT-CT materials were sintered at 850~1000°C.
Zhang, et al.: Book of Abstracts of 12 th Asian Pacific Confederation of Chemical Engineering Congress, Vol. 3 (Dalian University of Technology Press, Dalian, China, 2008) p. 50

Theory of Constraints is one of the most known theories, which was invented to address chronic problems in industry, including distribution, engineering, finance, marketing sales, strategy and change management.
Many types of constraints – such as raw materials, capacity, distribution, and market – exist along the supply chain.
A secondary buffer can be created during the process and it can be defined as apassage of sold material through the productive system.
Rope – is responsible to synchronize the arrival of materials as the buffer and the admission of raw materials in the system [5].
This situation occurs because there are several difficulties regarding SC which need to be solved by an efficient Supply Chain Management (SCM).some of these difficulties are very long lead times , large number of unfulfilled orders and/or they are executed with much extra effort (overtimes), high level of unnecessary inventories and/or lack of relevant inventories, wrong materials orders, large number of emergency orders and expedition levels, high levels of devolution, lack of key, customers engagement, frequent changes and /or absence of control related to priority orders, which implies on schedule conflicts of the resources, among many others [1,7].

Lifetime Calculation of Soil-Loaded Non-Pressure Polymer Pipes Jan Poduška1,2,a, Pavel Hutař2,b, Andreas Frank3, Gerald Pinter4, Luboš Náhlík5,c 1Institute of Solid Mechanics, Mechatronics and Biomechanics, FME BUT, Technická 2896/2, 61669 Brno, Czech Republic 2Institute of Physics of Materials, AS CR, Žižkova 513/22, 61662 Brno, Czech Republic 3Polymer Competence Center Leoben, Roseggerstrasse 12, A-8700 Leoben, Austria 4Chair of Materials Science and Testing of Polymers – Montanuniversität Leoben, Otto Glöckel-Straße 2/II, A-8700 Leoben, Austria 3CEITEC IPM, Žižkova 513/22, 61662 Brno, Czech Republic apoduska@ipm.cz, bhutar@ipm.cz, cnahlik@ipm.cz Keywords: plastic pressure pipe, non-pressure pipe, lifetime, soil load, slow crack growth, finite element simulation Abstract.
It was assumed that the corrugated pipe was made of the same material as the pressure pipe, the same material parameters were used.
A failure could occur as a result of material degradation, but only after a very long time in operation.
The research was also funded from the Polymer Competence Center Leoben GmbH (PCCL, Austria) within the framework of the COMET-program of the Federal Ministry for Transport, Innovation and Technology and the Federal Ministry for Digital and Economic Affairs with contributions by the Department of Polymer Engineering and Science, Montanuniversität Leoben (Austria).
Náhlík, The Effect of Soil Load on Fracture Behaviour of Three-Layer Polymer Pipe for Non-Pressurised Applications, Key Eng.

Effect of Polycarboxylate superplasticizer on Properties of Phosphogypsum-based cement LIN Zongshoua, SHI Huadongb and BEGUEDOU ESSOSSINAMc State Key Laboratory of Silicate Materials Science and Engineering, Wuhan University of Technology,Wuhan 430070, China azongshoulin@163.com, bshihuadong2005@163.com, c beguedou@163.com Keywords: phosphogypsum; polycarboxylate superplasticizer; carbonation; cement degradation Abstract: By using XRD, SEM and other experimental methods, some details of polycarboxylate superplasticizer on the hydration products and performance of phosphogypsum-based cement(PBC) can be obtained.
The Present annual production of PG in our country is more than 10 million tons, resulting in serious pollution of the environment, it is urgent to speed up the resource utilization of PG [1].Phosphogypsum-based cement(PBC) is a hydraulic cementitious material by the main raw material of PG [2-3], It has higher strength and water resistance, resistance to sulfate corrosion and volume stability, it is of great practical significance to PG utilization and energy conservation, but this cement are still have anti-carbonation performance poor, the surface is easy to degradation and other shortcomings.
Experimental 1.1 Materials The PG used in this research was supplied by Hubei Huangmailing Phosphoric Chemical Group Corp. of China.
Table 1 Chemical composition(mass%) of raw materials Item Loss SiO2 Al2O3 Fe2O3 CaO MgO SO3 TiO2 F- Mn2O3 P2O5 Total GGBFS -0.30 32.65 16.05 0.46 35.87 8.74 0.04 0.82 0.42 0.01 95.33 PG 11.91 3.21 1.09 0.31 34.52 0.06 47.30 0.20 　 1.10 99.70 Clinker 0.41 22.30 5.04 3.36 65.60 2.32 99.03 1.2.
Testing methods Using the raw materials of Table 1, according the ratio of Table 2 porvided to ingredients, mix it 5min to get PBC, the physical and mechanical properties are shown in Table 2.

GEMMA CHURCH IN GORIANO SICOLI DURING THE 2009 L’AQUILA EARTHQUAKE Emanuela Criber1,a, Giuseppe Brando1,b and Gianfranco De Matteis1,c 1 Department of Engineering (DIN), Faculty of Architecture.
In particular, reinforced concrete constructions built until the 80’s showed structural deficiencies, often accompanied by a scarce consistence due to poor materials and incorrect structural organization.
Similarly, masonry buildings characterized by vaults and arches, thin walls, bad connections between walls and, also, by the bad state of their materials, presented significant collapse mechanisms at both local and global level.
To this purpose, the employment of new materials and innovative techniques of seismic protection, able to respect the historical value of the buildings, are strongly required.
On the other hand, in some cases, global mechanisms have been revealed (Fig. 3.b), due to the lack of effective cantonal links, ties on the imposts of triumphal arches and vaults, structural irregularity, poor materials, scarce consistence of the masonry texture, etc..

Therefore, we must strengthen the construction of quality inspection work, to ensure the engineering quality.
Reference [1] Hannah TH.Anchorage technology in geotechnical engineering application[M].
Civil engineering journal, 2004, ( 5 )
Engineering Progress in Geophysics, 2000, 6 (1): 172-176.
China Journal of Geotechnical Engineering, 2007, 26(2): 397-403.

Study on Effects about the Growth of Summer Maize by different Furrow irrigation way ShunSheng WANG 1,2,a, SongLin WANG 1,b, ChuanChang GAO 1,c 1 North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou,450011, China 2 Institute of Water Resources，Xi’an University of Technology，Xi’an 710048，China a wss_ncwu@126.com, b wangsonglin@ncwu.edu.cn, c gcc@ncwu.edu.cn Key word：Furrow irrigation；Summer maize；Growth；Yield Abstract: The paper studies the effects of the growth about summer maize on different ways of furrow irrigation and Processing of water.
Material and method Surveys of pilot area.
Therefore, it is the key to realize the crops water-saving and high production that guarantee a reasonable leaf area of the crops community.
Controlling alternate irrigation technology research progress [J].Journal of agricultural engineering journal, 2001, 17 (4): 1-5

A Hybrid Approach of ANN and HMM for Cutting Chatter Monitoring Chunliang ZHANG1, a, Xia YUE2, b, Yongtao JIANG3,c, and Wei ZHENG1,d 1 Guangzhou University, Guangzhou 510006, China 2 South China University of Technology, Guangzhou 510641, China 3 University of South China, Hengyang 421001, China a nhzcl@163.com, bsmnsss@163.com, cjiangyongtao5311@163.com, dwzheng@163.com Key words: cutting chatter, condition monitoring, hidden Markov model, artificial neural network Abstract: The Hidden Markov Model (HMM) offers a powerful framework for temporal modeling of features extracted from time varying signals, and the Artificial Neural Network (ANN) has been widely used for pattern recognition, time series prediction, and optimization and forecasting.
Introduction Machining operations are material removal processes that have been widely used and play an important role in the modern manufacturing engineering.
Cutting state classification is the key step to cutting chatter monitoring.

Unified Fracturing Design for Water Injection Well Under Steady State Flow Regime Dan Luo1,a, Zhaozhong Yang1,b,Xiaogang Li1,c and Zhou Su1,d 1State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, People's Republic of China.
Figure (refer with: Fig. 1) shows the proportions of different qualities of oil reservoirs. [1] Reservoir engineers always consider that pressure is the soul of a reservoir.
To push the limit of the injective ability, induced fracture design optimization which is also the key to successful treatment, should be implemented.
[4] Feng Zhang: The Mechanism and Parameters-optimization of Injection Fracture Pressure Propagation for Low Permeability Oil Field [D].A Dissertation for the Degree of Doctor of Engineer of China University of Petroleum (2009) (in Chinese) [5] J.A.
Conway: Realistic Assessment of Proppant Pack Conductivity for Material Selection [R].