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Bending time: The tubular water clock
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| Pengarang | : | Keith Zengel; Hong-An Luu; Samuel Stollman |
| Nama Majalah/Jurnal | : | American Journal of Physics |
| Volume / Edisi | : | 93 (No. 11) |
| Halaman | : | 859-864 |
| Abstrak | : | A water clock is a device that is either filled or drained and shows time through a changing water level. The ancient design challenge is to fashion a container where the water level rises or falls at a constant rate, and thus sweeps out equal height intervals in equal time intervals. Here, we present a new solution to this challenge that involves draining bent plastic tubes. This experiment may be used as an introductory physics lab activity that encourages creative problem solving, and can be adapted to the needs of calculus-based and algebra-based physics courses. |
ARTI AMERIKA LATIN DAN KARIBIA BAGI UNI SOVIET DALAM PERTIMBANGAN KEKUATAN TIMUR-BARAT
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Analisa |
| Volume / Edisi | : | XIII-7, JULI (No. 7) |
| Halaman | : | 531-541 |
| Abstrak | : | - |
PERSAINGAN AMERIKA-SOVIET DI TIMUR TENGAH
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Analisa |
| Volume / Edisi | : | XIII-7, JULI (No. 7) |
| Halaman | : | 517-530 |
| Abstrak | : | - |
AFGHANISTAN DALAM PERTENTANGAN TIMUR-BARAT
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Analisa |
| Volume / Edisi | : | XIII-7, JULI (No. 7) |
| Halaman | : | 509-516 |
| Abstrak | : | - |
KEHADIRAN SOVIET DI KAWASAN ASIA-PASIFIK: SUATU PERSPEKTIF INDONESIA
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Analisa |
| Volume / Edisi | : | XIII-7, JULI (No. 7) |
| Halaman | : | 490-508 |
| Abstrak | : | - |
Peningkatan tingkat realitas objek hasil metode ray tracing dengan pengaplikasian tekstur dua dimensi
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Teknologi Industri dan Informasi |
| Volume / Edisi | : | 1 (No. 2) |
| Halaman | : | 126-134 |
| Abstrak | : | Generating a realistic picture can be done via ray tracing. The objects can be seen realistic since the effect of rays from the light is considered when they hit the object. Although the objects look realistic, but for standard ray tracing they will be presented in object's color only. It is not possible to create object with pattern in it or picture on its surface. To apply pattern or picture on object, it is necessary to map two-dimensional pattern or pictures to three-dimensional object. By applying textures on object, the realism of the object can be increased and more object variants can be generated. |
Pemanfaatan fluida superkritis di bidang industri: Sebuah alternatif baru yang lebih aman
| Pengarang | : | Widi, Restu Kartiko |
| Nama Majalah/Jurnal | : | Jurnal Teknologi Industri dan Informasi |
| Volume / Edisi | : | 1 (No. 2) |
| Halaman | : | 118-125 |
| Abstrak | : | As the liquid is heated further in the appropriate temperature and pressure, it can make a specific circumstances which the meniscus become indefinite, fades into the vapor, and disappears. At this temperature the physical properties of liquid and vapor becomes identical, and no distinction can be observed between them. This condition is said to be critical liquid phenomena. A pure supercritical fluid is any compound at temperature and pressure above the critical values. The fluid, as it termed, is neither a gas nor a liquid and is best described as intermediate to the two extremes. This phase retains the solvent power common to liquids as well as the transports properties common to gases. A fluid in the supercritical state can be described as that of very mobile liquid, and it can be utilized in some industrial process such as extraction process, food preservation and waste treatment which are safer than the conventional method. |
Pengaruh konsentrasi dan jenis surfaktan anionik terhadap laju korosi logam besi cor A 436 akibat aktivitas bakteri pereduksi sulfat
| Pengarang | : | Burowardi, Harry |
| Nama Majalah/Jurnal | : | Jurnal Teknologi Industri dan Informasi |
| Volume / Edisi | : | 1 (No. 2) |
| Halaman | : | 103-117 |
| Abstrak | : | It has been known that corrosion can not be prevented, however it can be reduced so that the corrosion rate decreased. The purpose of this research is to select the type of anionic surfactant as adsorber which form stabile monolayer in order to decrease corrosion rate of cast iron A436 as a sample for wall material of crude oil reservoir tank, caused by activities of (SRB) isolation from Ledok crude oil. CMC point of ABS and SDS surfactant solution obtained by conductivity measurement were 1.3% (v/v) and 0.6 % (w/v( respectively. In experiment of variation of ABS and SDS concentration, the highest corrosion rate for ABS and SDS achieved when concentration of ABS and SDS were 2% (v/v) and 2% (w/v) respectively. The lowest corrosion rate for ABS was 7% (v/v) and for SDS was 0.2% (w/v). Adsorption of SDS surfactant solution could not reduce biocorrosion process on variation of SDS concentration. Microscopic observation as a result of abiotic and biotic corrosion by SRB on cast iron A436 showed the existence of carbon deposit, white deposit Fe(OH)2 and pitting corrosion FeS. |
Helping SMEs to the network of relationship: An overview of the UNIDO's experience
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Teknologi Industri dan Informasi |
| Volume / Edisi | : | 1 (No. 2) |
| Halaman | : | 91-102 |
| Abstrak | : | The development of SMEs based on the clusters and networking is rarely done. UNIDO has been involved in cluster/ network-related project in fourteen locations in eight countries. UNIDO takes networking development approach instead of individual one in providing technical assistance to SMEs. UNIDO promotes the efficient relations system between SMEs and local institutions. It allows SMEs to overcome their isolation and to reach new collective competitive advantages. Local institutions will act as facilitator of the networking process. Successful SME cluster development program should be based on a differentiated and decentralized approach taking into account the diverse characteristics of individual clusters. |
The role of universities in the digital revolution era
| Pengarang | : | - |
| Nama Majalah/Jurnal | : | Jurnal Teknologi Industri dan Informasi |
| Volume / Edisi | : | 1 (No. 2) |
| Halaman | : | 80-90 |
| Abstrak | : | In the 21s 'Digital Revolution' century, universities face big challenges and should take actions to overcome them. Three important roles of university, which are education, research and community service, should adapt its activities to follow the flow and direction of society. In education, the curriculum should be changed and the courses that do not include the expectation of the new era should be eliminated. In research, university should improve the condition of research environment and link tightly research and education. Finally, for community service, university should foster relationships and share information between the sectors of research, the college and industry. |