tailieunhanh - MECHANICAL DRAWING PROBLEMS FOR HIGH SCHOOLS, NORMAL SCHOOLS AND VOCATIONAL SCHOOLS

The internode of solid bamboo has significantly higher ash, 1% NaOH, alcohol- toluene and hot water solubles than the nodes [Mabilangan et al. 2002]. However, differences between the major chemical composition of node and internode fraction of bamboo are small [Scurlock 2000]; neither the number of nodes nor the length of internode segments would be critical to the utilization of bamboo for energy conversion, chemical production, or as a building material. Fujji et al. [1993] investigated the chemistry of the immature culm of a moso- bamboo (Phyllostachys pubescens Mazel). The results indicated that the contents of cellulose,. | Mechanical Drawing Problems FOR High Schools Normal Schools and Vocational Schools By Edward Berg and Emil F. Kronquist Instructions in Mechanical Drawing Washington High School Milwaukee Wis. The Manual Arts Press Peoria Illinois Copyright 1918 Edward Berg and Emil F. Kronquist PREFACE The aim of the authors is to present to the student and the teacher a collection of progressive problems embodying the fundamental principles and examples of practical mechanical drawing arranged to cover two years of school work. The problems are grouped into first semester second semester and third and fourth semester work and arranged with the view in mind of teaching the proper amount of principles and application during a given period of time. With this plan it is felt that the student who leaves school at any time during the first two years or at the end of two years will have received the proportional amount of mechanical drawing which will serve his needs best in the practical walks of life. Each problem ỈS given in the form of a specification sheet and a lay-out sheet from which the student is to make the completed drawing. The specification sheet gives a statement of the problem and ĨS frequently supplemented with text matter which bears upon and emphasizes the thing to be taught in the problem or gives some relative information. The lay-out sheet suggests the method of procedure and also furnishes an object lesson in the form of carefully executed work which is always before the pupil. With this method class instruction is reduced to a minimum giving the teacher more time for individual instruction and the pupil the opportunity of working things out by himself. The proper use of the specification lay-out and reference sheets will do much It is believed towards creating self-reliance and personal effort and exertion on the part of the student. The required problems are fully supplemented making the course flexible and suitable for many needs. The reference sheets are made

• Cơ khí - Chế tạo máy
• Dried Probiotics
• Industrial Processes
• Membrane Separation
• Wastewater
• Maillard Reaction
• Pros and Cons
• Skim milk powder
• Spray drying
• Crumble feed
• Spray dried probiotics
• Crumble feed during storage
• Red dragon fruit
• Freeze dried
• Lactobacillus delbrueckii subsp
• Streptococcus thermophilus
• Dehydrated yogurt
• Pros and Con