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A considerable amount of lignocellulosic materials are waste by-products being generated through agricultural practices mainly from different agro-based industries.
Materials and Methods Sugarcane bagasse, stored approximately one month after harvesting and milling, was collected from a local milling company in Northern Cebu.
The total extractives (hexane-, water-, and ethanol-soluble materials) in dried SCB (~10 g) was removed with via Soxhlet extraction using n-hexane as solvent for 8 hours followed by distilled water for 24 hours and ethanol for 24 hours.
The moisture and ash content determination were carried out following the procedure for proximate analysis described by the American Society for Testing and Materials (ASTM), method ASTM D1762-84 [44].
Bioethanol from cellulosic materials: a renewable motor fuel from biomass.

Development of New Fire Extinguishing Agent for Grassland Leng Ningbo1, a, Wang Shunxi1, b, Han Pei1, c 1School of Engineering, China Agricultural University, Beijing 100083, China alengnb722@163.com, bwsx68@cau.edu.cn, cpeipeinihao@163.com Key words：grassland fire；ammonium phosphate；extinguishing effectiveness Abstract.
In this paper, developed a new type of extinguishing agent for grassland fire, which based on ammonium phosphate, ammonium dihydrogen phosphate powder extinguishing agent after the treatment of the ultrafine , the particle size become smaller and the surface area increased significantly, surface activity increased that the fire extinguishing efficiency would be greatly enhanced [3-5] ,the new grassland fire extinguishing agent not only has these advantages, but also environmentally friendly, high extinguishing efficiency, relatively low cost. 1 实Experiment 1.1 实验原料Experimental Materials 磷酸二氢铵、云母粉、滑石粉、白炭黑，活性白土均为工业品、 ND1 （含碳酸盐的一种化合Ammonium dihydrogen phosphate, mica, talc, white carbon black, activated clay, ND1 (a compound of contain carbonate).
②添加 ND1 配制灭火剂成品 add ND1 to finishing the preparation of the extinguishing agent product A ：取配制好的灭火剂基料和粉碎后的 ND1 ，将粉碎后的 ND1 按照 15 ％、 25 ％、 35 ％、 45 ％的质量百分比与灭火剂基料混合，在干燥箱中烘干至含水率小于 2% ； A: Take the extinguishing agent base material and the crushed ND1 ,the crushed ND1 in accordance with 15%, 25%, 35%, 45% of the mass percentage mixed with extinguishing agent base material, dried in the drying oven to a moisture content of less than 2%.
test results 灭火剂基料的性能测试如表 4 和图 1 、图 2 、图 3 、图 4 所示，Performances testing of fire extinguishing agent base material are shown in Table 4 and Fig.1, Fig. 2, Fig.3, Fig.4 表 4 灭Table4 Extinguishing agent base performance Table 4 Extinguishing agent base performance 性能指标 Performance indicators 测试结果 Test results 平均粒径 Average particle size 2.5um 2.5um 吸湿率 Moisture absorption rate 10% 10% 斥水性 Hydrophobic 水面漂浮 48 小时没有吸水结块 Floating 48 hours absorbent agglomeration 松密度 Bulk Density 0.8045g/cm 3 0.8045g/cm 3 流动性（休止角） Mobility (angle of repose) 33.7 ° 33.7 ° 抗结块性 Anti-caking 良好的流沙状 Quicksand-like Fig. 1 Fire extinguishing agent binder apparent characteristics Fig. 1 Fire extinguishing agent the binder apparent characteristics 图 2 灭火剂基料 400 倍显微镜下形Fig. 2 Fire extinguishing agent base material 400 times morphology under light microscopFig. 2 Fire extinguishing agent base material 400 times morphology under light microscopy 图 3 灭火剂基料休止角 33.7 °Fig. 3 Fire extinguishing agent binder repose angle
of 33.7 °Fig. 3 Fire extinguishing agent the binder repose of the angle of 33.7 ° 图 4 灭火剂基料斥水性Fig. 4 Fire extinguishing agent base material water repellency quaFig. 4 Fire extinguishing agent base material water repellency qualified 2.2草原灭火剂成品性能测Performance testing of grassland fire extinguishing agent product 通过对配制的灭火剂成品进行一系列表征指标的测试，结果可见表 5 所示：Through a series of characteristic index test, the results can be seen in Table 5: 表 5 灭火剂 Table5 Extinguishing agent perTable 5 Extinguishing agent performance 性能表征 Characterization ND1 添加质量百分比 The ND1 add mass percentage 0 0 15 ％ 15% 25 ％ 25% 35 ％ 35% 45 ％ 45% 粒径（ um ） Particle size (um) 2.5 2.5 2.68 2.68 2.50 2.50 2.15 2.15 2.32 2.32 吸湿率 (%) Absorption rate (%) 10% 10% 2.35 2.35 2.8 2.8 1.98 1.98 1.54 1.54 斥水性 Hydrophobic 合格 Qualified 合格 Qualified 合格 Qualified 合格 Qualified 合格 Qualified 松密度 (g/cm 3 ) Bulk density (g / cm 3) 0.8045 0.8045 0.8135 0.8135 0.8410 0.8410 0.8550 0.8550 0.9265 0.9265 流动性（休止角°） Flow (angle of repose°) 33.7 33.7

Introduction Pulsed laser ablation is the technique of eliminating solid or liquid materials through direct exposure to one or more continuous laser pulses [1].
Hence, the utilization of nanotechnology across many scientific disciplines is a significant instrument for achieving optimal applications and investigations in physics, biology, chemistry, and engineering, specifically at the atomic and molecular scales [27,28].
Conclusions Metal oxides have distinctive characteristics that set them apart from other solid materials due to their composition and synthetic nanostructures.
Pirzadah, “Chapter 3-Synthesis methods of nanoparticles and their key applications,” in Micro and Nano Technologies, M.
Borman, “22 - Laser-initiated ablation of materials,” in Woodhead Publishing Series in Electronic and Optical Materials, J.

Effects of Ce Addition on Solidification Structure of a Low-Carbon 42CrMo4 Steel Vu The Ha1,a*, Jaromir Drapala2,b, Silvie Brožová2,c, Michal Madaj2,d, Pavel Machovčák3,e, Petr Jonšta3,f 1Hạ Long University, Environmental Faculty, No 258, Bạch Đằng street, Nam Khê district, Uông Bí city, Quảng Ninh province, Việt Nam 2VSB-Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Center of Advanced Innovation Technologies, Av. 17. listopadu 15, 708 33 Ostrava-Poruba, Czech Republic 3Vítkovice Heavy Machinery a.s., Ruská 2887/101, Vítkovice, 703 00 Ostrava, Czech Republic 1.avutheha6@gmail.com, 2,bjaromir.drapala@vsb.cz, 2,csilvie.brozova@vsb.cz, 2,dmichal.madaj@vsb.cz, 3,epavel.machovcak@vitkovice.cz, 3,fpetr.jonsta@vitkovice.cz Keywords: Cerium, inclusions, solidification structure, grains, dendrite Abstract: Effects of Cerium (Ce) addition on solidification structure of a low-carbon 42CrMo4 steel was investigated.
Such solidification structure is always associated with a so called macrosegregation phenomenon which is essentially a deviation of alloying concentration from the average nominal composition of the materials over distances much larger in comparison with the dendrite arm spacing [1, 2].
Charge material consisted of small pieces cut off from the steel bar and Ce in the form of mixture of powder was added to the charge prior to melting in case of 42CrMo4Ce steel.
LO1203: “Regional Materials Science and Technology Centre – Feasibility Programs” and project No.
The authors wish also to express sincere thanks to the Department of Metallurgy and Materials Science of the Technical University of Ostrava for providing facilities and favorable environment for carrying out this study.

The main contents include curriculum orientation, curriculum objectives, syllabus, curriculum teaching contents and requirements, curriculum videos, arrangement of practical links, assessment plans, teaching materials, materials and other sections.
It breaks the traditional teaching mode of centering on teaching materials and teachers.
Textbooks are of course important, but for the subject of national law, it is difficult for students to accurately grasp the deep legal principles behind the words only by relying on teaching materials and teachers' explanations.
Through various ways of pictures, audio and video, students can efficiently master and understand the key parts of knowledge.
Electronic Technology and Software Engineering, 2020(05):135-136.

A REVIEW OF METHODOLOGIES USED FOR FAULT DIAGNOSIS OF GEARBOX Zhenyu Han1,a, Yulong Liu1,b, Hongyu Jin1,c, Hongya Fu1,d 1 School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China a hanzy@hit.edu.cn,b liuyulonghit@gmail.com, c jinhongyu518@163.com,d hongyafu@hit.edu.cn Keywords: Fault diagnosis, Data processing, Artificial intelligence, Sampling methods, Gearbox.
Acoustic emission (AE) is defined as the transient elastic wave generation due to a rapid release of strain energy within or on the surface of a material.
Features Extraction and Selection The key to recognize the fault in both gear and bearing as early as possible is to find impulses in signal.
Baltes, in: 25th International Congress on Condition Monitoring and Diagnostic Engineering(2012) [3] C.K.

Zoom Synchrosqueezing Transform for Instantaneous Speed Estimation of High Speed Spindle Songtao Xi1, a, Hongrui Cao1, b * Xuefeng Chen1, c 1State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710049, PR China a Email: xst121@stu.xjtu.edu.cn, bEmail: chr@mail.xjtu.edu.cn, cEmail: chenxf@mail.xjtu.edu.cn * Corresponding author Keywords: high speed spindle, zoom synchrosqueezing transform, instantaneous speed estimation.
Introduction With increasing demands for higher productivity and lower production costs, much research has been conducted on manufacturing system to increase the material remove rate in machining, especially in High Speed Machining (HSM).
Jin, A Frequency-Shift Synchrosqueezing Method for Instantaneous Speed Estimation of Rotating Machinery, Journal of Manufacturing Science and Engineering, 137 (2015) 031012.

An approach to lumbar vertebra CT image segmentation using contourlet transform and ANNs Junmin Deng 1, a, Haiyun Li *2,b and Hao Wu 3,c 1 School of biomedical engineering, Capital Medical University, Beijing China. 2 School of biomedical engineering, Capital Medical University, Beijing China. 3 Xuan Wu Hospital affiliated to Capital Medical University adengjunmin2008@163.com, b haiyunli@ccmu.edu.cn, crbc@sina.com.cn *Corresponding author Keywords: medical image segmentation, contourlet transform, self-organizing competitive artificial neural network (ANNs) Abstract.
Step 5: To reconstruct the segmented image by inverse-contourlet transforming partition coefficient of low-frequency coefficients together with the original coefficient. 5.Conclusion The material used in the experiments in this paper is 15 piece of CT image of the human abdomen, without any treatment.
This work is funded by the National Natural Science Foundation of China, No.30670576; Scientific Research Key Program of Beijing Municipal Commission of Education, No.kz200810025011; Medicine and Clinical Cooperative Research Program of Capital Medical University.

Coke is an important raw material for the metallurgical and chemical industry, its quality and yield of production is directly related to the stability of the follow-up.
So far, there are general several case retrieval strategies such as nearest-neighbor approach, inductive algorithm, Knowledge-guided and module-retrieval .In this paper, the nearest-neighbor approach is adopted, and the similarity between the input case and old cases is calculated, the key of this approach is how to determine the important weight of each features.
Nonlinear system identification and model reduction using artificial neural networks[J].Computer Chemical Engineering,2003,27(12):1741-1754 [3] WAHEED A, ADELI H.Case-based reasoning in steel bridge engineering[J].Knowledge-Based System,005,18(1):37-46 [4] He Zhi.

Study on Ground Source Heat Pump System of Combined Office and Residential Building in Hot Summer and Warm Winter Region Yingning Hu1, a, Yazhao Liu2, b , Jun Lin3, c, Yan Wang4, d 1,2,3,4College of Mechanical Engineering, Guangxi University, Nanning 530004, China ahyn@gxu.edu.cn, bliuyazhao_890@163.com, clinjun@gxu.edu.cn,d532807271@qq.com Keywords: Ground source heat pump, Hot water-air conditioning combined, TRNSYS, Feasible, Underground heat balance, Abstract: A ground source heat pump system of combined office and residential buildings in hot summer and warm winter region is introduced.
Drilling diameter is 127mm, with drilling spacing is 5m * 5m.The material of buried pipe is PE.
It is also what was pointed out in various engineering handbook and specification that soil heat pump of heat exchange system should guarantee the absorption heat and heat treatment of annual accumulation roughly equal.
Acknowledgements This study was supported by the Guangxi Science and Technology Project-Software Design and Intellectual Product Research of Ground Source-Solar Heat Pump System (No.0719001-15), and the Key Technology of Effective Application of Ground Souce Heat PumpSystem in Hot Summer and Warm Winter Area(No.AE010002) References [1] G.Wang: New Energy & Green Building, (2012) [2] G.L.