CLAY ROOFING TILE: A COOL ROOF?

The aim of this study is to determine if the clay roofing tile in its natural albedo can be considered “cool” in the thermal performance through a comparison of its surface temperature to a cool coated clay tile using the exposure rack method. It begins with highlighting the expectation (from review) of the thermal performance of a cool colored tile and comparing the surface temperature (maximum, mean and minimum) of the tiles. Day and night time temperature behaviors were also compared using graphs on excel software. A python t- test of means was also carried out to determine if there was any significant difference in the performance of the materials. It was found that the performance of the clay tile in its natural albedo is a cool tile in its thermal performance. The implication of this is a cost saving strategy. However, further research is needed as a form of coating may be needed in order to enhance its life span. A non- color coat whose only function is to protect the surface of the tile. This does not in any way disregard the use of coated tiles as user preference may still tend towards non- natural clay colored tiles, its purpose is to encourage informed cheaper methods of achieving cool roof strategies

PENERAPAN MEDIA KEPING BERWARNA TERHADAP HASIL BELAJAR PESERTA DIDIK PADA MATA PELAJARAN MATEMATIKA DI SEKOLAH DASAR (Studi Eksperimen Pada Bilangan Bulat Di Kelas IV SDN Sukasari Kec. Cipatat)

<p><em>The low learning outcomes in mathematics at the State Elementary School in the material </em><em>Sukasari </em><em>summation of integers and the results of their study have not yet reached KKM (minimum completeness criteria) to overcome these problems, the researchers used instructional media as a tool to improve the learning outcomes of students. The research design used in this study are nonequivalent control group design. This research was conducted in two classes, experimental and control classes. Both of these classes are treated differently, grade control using conventional learning while the experimental class using the Media Chips Color. Data collection techniques used in this research is the observation and tests. To collect data in this study, the use of research instrument shaped observation sheets and test questions. Based on the analysis of data there are significant differences between the results of the pretest and posttest experimental class and there are differences in learning outcomes between the control group and the experimental group after treatment so that there are significant media use colored tile to the study of students in mathematics in elementary school then the hypothesis can be accepted</em><em>.</em><em></em></p>

DUSTY EXPLOITING of CHAFF PADDY UPON WHICH HARD MIXTURE TILE SOIL IN KARANG PENANG SAMPANG

Chaff Paddy is external shares from paddy item. about/around 20 % from paddy wight is paddy chaff and more or less 15 % from composition lock up is lock up paddy which is always yielded is each time burned. ( Hara - 1986). Ash Lock up Paddy have pozolan element and contain silica. silica represent worthwhile chemicals and its application is very wide of strarting electronic area. mechanic. medical, building till other area. One of the silica serbuk exploiting is upon which ceramic making mixture of art ( hara. 1986). Dusty waste of this paddy chaff will be developed for the materials of bangunnan that is upon which mixture making of clay tile in Rock Penang Coat with lacquer so that can yield qualified Hat land;ground tile as according to SNI 03-2095-1998. Used by Mixture composition is heavy comparison 10 TL : 0 ASP ( control), 10 T : 1 ASP, 10 TL : 2 ASP, 10 TL : 3 ASP, 10 TL : 4 ASP, 10 TL : 5 ASP. Dusty of Chaff Paddy to be used is beforehand sieved so that become refinement and clear of small stones and fibre so that/ to be easy to in course of and mixture printing of tile, is later; then mixed with clay and processed with printing of tile result of from tile printing;mould dried until tile is ready to burned, hereinafter process combustion of rose colored tile until. refinement as according to specification in SNI 03-2095-1998. Examination relate at SNI 03-2095-1998 about visible quality, decision of size measure, form, limber strength and absorbtion. From is sixth of mixture composition indicate that energy diffuse dusty clay tile water of terendah paddy chaff at III mixture ( 10 TL : 2 ASP) equal to 6,28 % below/under SNI 03-2095-1998 equal to 15 % and enter in storey;level quality of II. Strong flex highest at III composition ( 10 TL : 2 ASP) equal to 169,95 Singk / cm enter in storey;level quality of II tile and limber strength of minimum at VI composition ( 10 TL : 5 ASP) equal to 133,67 Singk / cm ( SNI 03-2095-1998 min. 110 Singk / cm2

REPRESENTATION OF ITERATIVE PATTERNS

Iterative patterns can be described by the component pattern of iteration and their way of connection for iteration. It is shown that the shape of the component pattern can be a rectangle for any iterative pattern, which is called a tile. The tile is related to the basis of the parallel translation group of the iterative pattern. The component pattern itself is identified by a "tessera" which is defined by a non-degenerate colored tile. The tessera is a compact representation of iterative patterns. Some natures of tesseras and tiles are also discussed. The number of the kinds of distinct iterative patterns for each way of iteration is evaluated.