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Introduction The precision machining of micro-hole is of great difficulty in the field of hole machining, especially when hard and brittle materials are involved.
All of these difficulties have become the bottle-neck in the field of machining hard and brittle materials.
For its special cutting mechanism, the ultrasonic vibration drill-grinding has aroused many experts’ interests in quest for machining methods of micro holes on the hard-to-machine materials.
In fact, for the small drill head, its material is different from the horn, and its equivalent diameter and mass are usually too small to be taken into account.
Lin: Theory and Design of ultrasonic horns (Science Publishing House, China 1987).

Bulk nanostructured Ni3Al intermetallic and Ni3Al-base alloy Ovcharenko V.E.1,3,a, Psakhye S.G.1,2,b, Boyangin E.N.1,c 1Institute of Strength physics and Materials Science SB RAS, Tomsk, Russia 2National Research Tomsk Polytechnic University, Tomsk, Russia 3Yurga Technological Institute branch of Tomsk Polytechnic University, Yurga, Russia aove45@mail.ru, bsp@ispms.tsc.ru, cjeck@ispms.tsc.ru Keywords: intermetallic, SHS, plastic deformation of an SHS product, structural modification, multimodal grain structure, bulk nanostructuring, the temperature dependencies of ultimate stress Abstract.
Materials and methods Ni3Al intermetallic compound was synthesized from Al/Ni powder mixture of stoichiometric component ratio.
Structure and properties of intermetallic materials with nanophase strengthening / Coll.
Journal Powder Met.-1987.
Producing Bulk Ultrafine-Grained Materials by Severe Plastic Deformation.-2006.

Effects of ZrO2 Fiber on the Mechanical Properties of Nano-ZrO2/Al2O3 Ceramic Composite1 Heyi Ge, Jianye Liu, Xianqin Hou, Huashi Liu, and Dongzhi Wang School of Material Science and Engineering University of Jinan, Jinan, Shandong Province, China mse_gehy@ujn.edu.cn Keywords: nano-zirconia, zirconia fiber, Al2O3 ceramic composite, mechanical properties.
At present using phase transformation of ZrO2 particle to toughen ceramic material is an ideal method [2].
Meanwhile, the method of fiber or whisker toughening ceramic material is very effective, which can not only improve material toughness, and in most cases can also improve material strength [3].
Experimental Materials Al2O3 powder (99 type) was supplied by Zhengzhou Smelter Manufacturing Co., Ltd.
Guo, “The brittleness problem of ceramic material,” Journal of fudan university, vol. 42 , no. 6, pp. 822-827, July 2003

Xu and Wang weighted feature selection algorithm based on random forest (RF-WFS) with XGBoost classifier PIDD Achieved an accuracy of 93.75% Materials and Methods Dataset.
Ajila, et al., Using hybrid and diversity-based adaptive ensemble method for binary classification, International Journal of Intelligence Science 8 (03) (2018) 43
Pradeep, A review of ensemble machine learning approach in prediction of diabetes diseases, International Journal on Future Revolution in Computer Science & Communication Engineering 4 (3) (2018) 463–466
Ranjan, A comparison of multiple imputation methods for data with missing values, Indian Journal of Science and Technology 10 (19) (2017) 1–7
Sisodia, Prediction of diabetes using classification algorithms, Procedia computer science 132 (2018) 1578–1585

Second, use the tailings to make a simple processing as building materials (brickmaking for iron tailings) or fill the gob area.
Third, make a finishing and produce high additional value materials.
Forth, make a ecological reconstruction as restoration materials [1].
Acknowledgements The authors are thankful to the financial support from the Joint Foundation between the National Natural Science Foundation Committee of China and Yunnan Provincial Government (Grant No.U0937602), the National Natural Science Foundation Committee of China (Grant No.51174103).
[3] MacArthur JS, Forrest RW and Forrest W: British Patent 10223.（1888） [4] Elsner,L:Journal fuer Praktische Chemie.Vol.37(1846),p.441 [5] Mills,T,in:An Introduction Study of the Dissolution of Gold and Silverin Cyanide Solution. edtied by Ph.D,University of Melbourne,(1951), in press

Kim2 1 Center for Advanced Plasma Surface Technology, SungKyunKwan University, Suwon 440-746, South Korea 2 Division of Materials Science and Engineering, Hanyang University, Seoul 133-791, South Korea Keywords: Al3Zr, copper, intermetallics, oxidation Abstract.
Experimental procedure The -325 mesh elemental powders of Al (99.9% pure), Cu (99.5% pure) and Zr (99.9% pure) were used as starting materials to yield the composition of (Al+12.5 at.
%Cu)3Zr, which was far 20 30 40 50 60 70 80 2�� � � (degree) Relative Intensity � � � � � � � � � � � � � DO23-Al3Zr L12-Al3Zr ZrC � (a) 20 30 40 50 60 70 80 2�� � � (degree) Relative Intensity � � � � � � � � � � � � � DO23-Al3Zr L12-Al3Zr ZrC � (a) 0 0 0 145 99 32 0 112 Zr Al Cu O mount matrix A B Counts (c) pores 0 0 0 145 99 32 0 112 Zr Al Cu O mount matrix A B Counts (c) pores Al-K���� Zr-K���� Cu-K���� 5��� � (b) 50nm (c) 50nm (c) (d)(d) A B (b) 10 � �� � pores mount matrix A B (b) 10 � �� � pores mount matrix 20 30 40 50 60 70 80 90 2 (degree) Relative Intensity 
 � L12-Al3Zr ZrC (a) �
 � � � � � � � � � 20 30 40 50 60 70 80 90 20 30 40 50 60 70 80 90 2 (degree) Relative Intensity 
 � L12-Al3Zr ZrC
 � L12-Al3Zr ZrC (a) �
 � � � � � � � � � Journal Title and Volume Number (to be inserted by the publisher)
Doychak (Ed.), TMS, Warrendale, PA (1989) 277 (004) (114) (114)(110)(114) (004) (114) (110) [110] (c) (004) (114) (114)(110)(114) (004) (114) (110) [110] (004) (114) (114)(110)(114) (004) (114) (110) [110] (c) Al Zr Cu Zr Zr Cu 62.88%Al+12.5%Cu+24.62%Zr spot ‘X’ (b) Energy, E/keV 0 15 10 5 Intensity (round grain) Al Zr Cu Zr Zr Cu 62.88%Al+12.5%Cu+24.62%Zr spot ‘X’ (b) Energy, E/keV 0 15 10 5 Intensity (round grain) Energy, E/keV Al Zr Cu Zr Zr Cu 36.55%Al+8.9%Cu+54.55%Zr spot ‘Y’ Intensity 0 15 10 5 (d) (dark, small particle) Energy, E/keV Al Zr Cu Zr Zr Cu 36.55%Al+8.9%Cu+54.55%Zr spot ‘Y’ Intensity 0 15 10 5 (d) (dark, small particle) Y (a) 100��� � X Y (a) 100��� � X Journal Title and Volume Number (to be inserted by the publisher) [10] R.

Materials and Methods Wastewater Quality.
Journal of Industrial and Engineering Chemistry, Vol.15(4): 524-528 [2] Farabegoli G, Chiavola A, Rolle E,2009.
Journal of Hazardous Materials, Vol.171(1-3): 1126-1132 [3] Ryu H D, Kim D, Lim H E, Lee S I, 2008.
Yunnan environmental sciences, Vol.22 (1):56-59

Polyacrylonitrile (PAN) is one of most used membrane materials after cellulose [4-5].
PAN membranes demonstrates better fouling resistance in comparison to membrane materials like polyvinylidene fluoride, polysulfone and polyethersulfone [6-7].
Acknowledgements This work was funded by the Russian Science Foundation (Project no. 18-79-10260) References [1]  A.
Volkov, Fabrication of cellulose-based composite membranes for organic solvent nanofiltration, Journal of Physics: Conference Series. 1099 (2018) 012039
Drioli, Thermally induced phase separation and electrospinning methods for emerging membrane applications: A review, AIChE Journal. 62 (2016) 461-490

Accurately 5 g carrier materials γ-Al2O3, which particle size between 0.6 to 0.9 mm, was put into aqueous solution of cerium nitrate followed by stirring at 50 oC for 2 h.
Following the same method, a series of Pd-CeO2/γ-Al2O3 catalysts, which have 2% Pd loading, were obtained from the carrier materials CeO2/γ-Al2O3.
Acknowledgments This work was supported by the Fund from the Natural Science Foundation of China for Innovative Research Group (Grant 50921002), the Research Fund from Key Laboratory of Coal Processing & Efficient Utilization, Ministry of Education (Grant CPEUKF08-09) and Yong Teacher Research Foundation from China University of Mining & Technology (Grant OH080254).
Xu: Journal of Natural Gas Chemistry 17 (2008), pp. 387-390 (in Chinese)
Xiao: Chinese Journal of Catalysis 29 (2008), pp. 325-329 (in Chinese)

Moreover, the RC slab and timber joist are sub-divided into fibres that allows for monitoring the behaviour of material points over the section depth [17].
I: Finite Element Modeling and Validation, Journal of Structural Engineering 132 (2006) 13-22
II: Numerical Analysis and Simplified Evaluation, Journal of Structural Engineering 132 (2006) 23-33
Eckard, Creep of douglas fir beams due to cyclic humidity fluctuations, Wood and Fiber Science 18 (1986) 468-477
Crews, Experimental and analytical investigation of short-term behaviour of LVL-concrete composite connections and beams, Construction and Building Materials 37 (2012) 229-238