Penggunaan modul pembelajaran elektronik (MPE) pengenalan pelancongan H 111 : tinjauan terhadap pensyarah dan pelajar Diploma Pengurusan Pelancongan, Politeknik Johor Bahru

Era Teknologi Maklumat dan Komunikasi (ICT) telah melihat perkembangan penggunaan komputer sebagai alat berpotensi untuk meningkatkan proses pengajaran dan pembelajaran. Oleh itu, kajian ini meninjau Penggunaan Modul Pembelajaran Elektronik (MPE) dalam mata pelajaran Pengenalan Pelancongan H 111 di kalangan pensyarah dan pelajar semester satu Diploma Pengurusan Pelancongan, Politeknik Johor Bahru. Seramai 40 responden yang terdiri daripada pelajar dan tiga orang pensyarah telah dipilih bagi menjawab tiga persoalan kajian yang dinyatakan. Maklum balas melalui soal selidik pelajar telah dianalisis menggunakan perisian Sran'sf/caV Package /or <Sbc;'a/ Aaence (SPSS) versi 11.0, manakala maklum balas soalan terbuka pensyarah pula dipersembahkan dalam bentuk jadual serta penerangan. Dalam persoalan kajian pertama, skor min keseluruhan yang diperolehi terhadap penerimaan pelajar ke atas MPE Pengenalan Pelancongan H i l l yang dihasilkan adalah di tahap baik iaitu 3.74. Manakala persoaian kajian kedua, pelajar turut bersetuju bahawa isi kandungan MPE Pengenalan Pelancongan H i l l dapat meningkatkan tahap pemahaman mereka (skor min keseluruhan 3.654). Seterusnya dalam persoalan kajian ketiga, skor min keseluruhan yang diperolehi adalah 3.634 menunjukkan satu dapatan keputusan yang baik terhadap penggunaan MPE dalam membantu proses pembelajaran yang berkesan. Begitu juga dengan hasil dapatan yang diterima dari pensyarah, mendapati keputusan ketiga-tiga persoalan kajian berada di tahap setuju atau baik. Di akhir bab kajian ini, beberapa pandangan telah dikemukakan untuk mempertingkatkan lagi kecekapan MPE melalui pembangunan perisian yang lebih mantap di masa hadapan

Studi Eksperimental Pengaruh Paramater Proses Pencetakan Bahan Plastik Terhadap Cacat Penyusutan (Shrinkage) Pada Benda Cetak Pneumatics Holder

Pneumatics holder which supports all pneumatics components requires high tolerance in dimension. Therefore, perfect design process which means accurate process parameter selection will enable us to produce as cast holder as required. This experimental study is to produce pneumatics holder by combining several process parameters on injection moulding machine, such as : melting point, air pressure level, holding time and pressure duration. The results show that the process parameter significantly influence the as cast holder product as required, so that the process parameter selected should be in accordance with the raw plastic material availiable

Dibbling Machine for ArborGen

ArborGen’s nursery, located in Tokoroa, supplies approximately 6 million seedlings per year to the forestry industry (figure 1). The vast majority of seedlings are Pine Radiata but they also supply Plug Plus and Douglas fir. In peak season, they plant up to 120,000 seedlings per day that each require a straight vertical hole of certain depth and spacing, (depending on seedling type). For example the most common seedling, Radiata pine, requires holes of approximately 10mm diameter x 40mm deep (figure 2). The process of making the holes is called dibbling. Dibbling has become a major problem that has resulted in an estimated 400,000 rejections per year. An investigation of the dibbling process identified the following problems: • Existing human dibbling methods too slow and unreliable • Machine methods produce low quality holes that lead to mis-planted seedlings • Lack of flexibility of existing, methods with regard to hole size and spacing • Current methods compact the soil hindering root growth so hole drilling is preferred • Currently, dibbling must be done on the day of planting due to the deterioration of the bed surfac

Common causes of failure of pneumatic distributors in high precision pneumatic seeders: Proposals towards predictive maintenance

Modern precision pneumatic drills (1-500 kg/ha) used in the cultivation of high density crops such as winter cereals (up to 400 plants/m2) are very high performance equipment that triple the working width (up to 9m) and rates (up to 14 km/h) compared to those used fifteen years ago. Most of enterprises commercialize such devices using as cornerstone a central pneumatic distributor in combination with a large number of radial outlets (24-48). In spite of the unquestionable advantages of these devices with regard to more conventional gravitational distributors, the main drawback remains the lack of transversal uniformity which has proven to be fairly sensitive to seed size and shape, to slight air flow changes related to partial obstructions of outlets, elbows and grips in discharge outlets, or vibrations and inclinations of the central distributor, as well associated to inadequate maintenance of the machine by untrained operators. Moreover, the lack of behavior predictability derives in a certain discredit of the pneumatic procedure. This work proposes a theoretical-empirical methodology to analyze the pneumatic circuit and its interaction with a variety of seeds types to be delivered, and selected operational machinery settings, within the aim of elaborating a test protocol which combined with low cost instrumentation will serve a base for predictive maintenance. Experimental data gathered in static and dynamic tests performed by the authors on at least two different seeders together with published information available on technical papers will be reviewed and used for further discussion on reliable diagnosis procedure

Fluidic-thermochromic display device

Fluidic decoder and display device has low-power requirements for temperature control of thermochromic materials. An electro-to-fluid converter translates incoming electrical signals into pneumatics signal of sufficient power to operate the fluidic logic elements

Water, air and fire at work in Hero's machines

Known as the Michanikos, Hero of Alexandria is considered the inventor of the world's first steam engine and of many other sophisticated devices. Here we discuss three of them as described in his book "Pneumatica". These machines, working with water, air and fire, are clear examples of the deep knowledge of fluid dynamics reached by the Hellenistic scientists.Comment: Hero of Alexandria, Hellenistic physic

A major electronics upgrade for the H.E.S.S. Cherenkov telescopes 1-4

The High Energy Stereoscopic System (H.E.S.S.) is an array of imaging atmospheric Cherenkov telescopes (IACTs) located in the Khomas Highland in Namibia. It consists of four 12-m telescopes (CT1-4), which started operations in 2003, and a 28-m diameter one (CT5), which was brought online in 2012. It is the only IACT system featuring telescopes of different sizes, which provides sensitivity for gamma rays across a very wide energy range, from ~30 GeV up to ~100 TeV. Since the camera electronics of CT1-4 are much older than the one of CT5, an upgrade is being carried out; first deployment was in 2015, full operation is planned for 2016. The goals of this upgrade are threefold: reducing the dead time of the cameras, improving the overall performance of the array and reducing the system failure rate related to aging. Upon completion, the upgrade will assure the continuous operation of H.E.S.S. at its full sensitivity until and possibly beyond the advent of CTA. In the design of the new components, several CTA concepts and technologies were used and are thus being evaluated in the field: The upgraded read-out electronics is based on the NECTAR readout chips; the new camera front- and back-end control subsystems are based on an FPGA and an embedded ARM computer; the communication between subsystems is based on standard Ethernet technologies. These hardware solutions offer good performance, robustness and flexibility. The design of the new cameras is reported here.Comment: Proceedings of the 34th International Cosmic Ray Conference, 30 July- 6 August, 2015, The Hague, The Netherland

Transitions between levels of a quantum bouncer induced by a noise-like perturbation

The probability of transition between levels of a quantum bouncer, induced by a noise-like perturbation, is calculated. The results are applied to two sources of noise (vibrations and mirror surface waviness) which might play an important role in future GRANIT experiment, aiming at precision studies of/with the neutron quantum bouncer

New Gasostatic Borehole Bearings - Construction and Research

In the article the origin of creation, construction as well as the research of the novel gasostatic borehole bearings are presented. In the first part of the paper the information on the construction of the bearing is outlined whereas in the second part the methodology of the experimental and numerical research as well as obtained results are described. The paper is summarized with the conclusions of the research and suggestions due to commercial application of the bearings

Preventing High-Pressure Injection Injury: A Hazard of Hydraulics and Pneumatics

[Excerpt] A high-pressure injection injury involves air, fluid, or solids forced into the skin by high pressure. Typically these occur when we feel for leaks with our fingers, such as when air or hot hydraulic fluid is forced into the skin by high pressure from a leak in a high-pressure line. Another example is the painter using a paint gun with so high of a pneumatic pressure that it twisted around in his hand and injected paint and solvents into his abdomen. So many of these injuries happen in the hands and fingers when feeling for leaks, but there have been cases such as someone searching for leaks with the tongue (ouch!), or listening for leaks producing an injury into the side of the face, or being struck by a detached hydraulic hose whipping around in the air