225 research outputs found

    RANCANG BANGUN MESIN PEMIPIL JAGUNG KERING (PENGUJIAN)

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    Dalam laporan proyek akhir ini membahas secara rinci tentang proses perancangan dan pembuatan mesin pemipil jagung. Sebelum dilakukan perancangan mesin pemipil jagung, terlebih dahulu dilakukan observasi dan pengumpulan informasi tentang apa saja yang perlu disiapkan sebagai dasar tolak ukur bidang perancangan. Tujuan dari Proyek Akhir ini adalah untuk merancang dan membuat alat uji mesin pemipil jagung yang digunakan untuk mempermudah petani jagung dalam proses pasca panen setelah proses pengeringan biji jagung. Mesin pemipil jagung memiliki komponen utama berupa poros dan rumah pemipil yang berfungsi memipil biji jagung dari tongkol, adapun penggerak yang digunakan adalah motor listrik sebagai sumber daya bagi bagian pemipil. Hasil proyek akhir ini adalah dari perhitungan diperoleh motor penggerak 0,5 HP dengan putaran mesin 1400 rp

    PENGEMBANGAN MEDIA INTERAKTIF PADA MATA PELAJARAN KOMPUTER DAN JARINGAN DASAR DI SMKN 5 BATANGHARI

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    The purpose of this study was to develoved an Interactive Media on basic computers and networks Subjects and test whether the media can better improve the basic computers and networks. A four-D Research and Development (R & D) study had been applied to develop and test the validity, practicality, and effectiveness of the Interactive Media inteaching basic computers and networks. The steps consisted of define; design; develop; and disseminate. The testing for content validity of the Interactive Media was found valid. Based on the teachers and the students response on the practicality, it was found that this media was found highly practical. Based on the learning outcomes the effectiveness of the media was found effective. Based on the data analysis, it was found that the Interactive Media can better improve the students' learning outcome on the basic computers and networks for Grade X at SMKN 5 Batanghari.Tujuan penelitian adalah untuk menghasilkan media pembelajaran interaktif pada mata pelajaran Komputer dan jaringan dasar yang layak digunakan untuk pembelajaran individual. Penelitian ini menggunakan model Four-D untuk mengembangkan dan menguji kelayakan media pembelajaran interaktif dalam pembelajaran komputer dan jaringan dasar. Tahap-tahap penelitian meliputi pendefinisian, perancangan, pengembangan, dan penyebaran. Hasil pengujian validitas media pembelajaran interaktif menunjukkan bahwa media pembelajaran sudah valid. Berdasarkan respon guru dan siswa mengenai praktikalitas media menunjukkan bahwa media pembelajaran sangat praktis serta berdasarkan hasil belajar menunjukkan bahwa media pembelajaran sudah efektif digunakan pada pembelajaran komputer dan jaringan dasar. Hasil analisis data menunjukkan media pembelajaran interaktif lebih baik dalam meningkatkan pembelajaran siswa pada proses pembelajaran Komputer dan Jaringan Dasar kelas X di SMKN 5 Batanghari

    Comparative study on calcium, magnesium and cobalt in diabetic and non diabetic patients (males) in Punjab, Pakistan

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    Minerals are very important because of their important role in the maintenance of human health. Our study was aimed at assessing and comparing the levels of Ca, Mg and Co in the blood samples of diabetic and non diabetic persons (males) of five age groups between one and 75 years. For this purpose, fasting blood samples of diabetic and non diabetic males of selected age groups were collected. The blood samples were centrifuged to get serum. The mineral elements in the serum were analyzed by using atomic absorption spectrophotometer. The results depicted that the diabetic patients had higher mean concentration of Ca (141.47 ppm), Mg (18 ppm) and Co (0.057 ppm) while non diabetic persons had higher mean concentration of Ca (201.33 ppm), Mg (36.15 ppm) and Co (0.047 ppm). Statistical analysis was done by applying Student’s T-test. It can be concluded from the study that the diabetic patients of all five age groups are deficient of Ca, Mg, whereas the concentration of Co is higher in diabetic patients. In the further study physiological parameters along with other inorganic cofactors are being taken into consideration.Key words: Diabetes mellitus, blood serum, Ca, Mg, Co

    EVALUASI PELAKSANAAN PROGRAM PRAKTEK KERJA INDUSTRI SISWA KELAS XI DI SMK NEGERI 3 PAYAKUMBUH TAHUN AJARAN 2017/2018

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    This study aims to evaluate the implementation of work practices Industry SMK N 3 Payakumbuh. The evaluation of the work practices of the industry (Prakerin) viewed from component design, Installation, and Cost, Product Procces faced in implementing Prakerin. Research results show that implementation of work practices in the industry of SMK N 3 Payakumbuh Computer Network Engineering program as a whole include: (1) evaluation of Goal Indicators of program design: prakerin acquire standard score 81.5% good. Then for the Preparatory Program indicators Prakerin earn standard scores 80.25%. (2) evaluation of Installation: indicator of the readiness of Teachers Supervising earn standard scores 85.33% good. then the instructor Readiness for DU/received 73% of the score is pretty standard. Next on the supporting facilities and infrastructure indicators obtained standard score 82% good. Next on the indicators of Source Funds obtain standard scores 83.33% good. Next on the relevance of the indicator Program with the needs of the Students acquire standard score 80,53% good. (3) the evaluation Process: preparation of Indicators gained 85.6% score is stdandar good. indicators for Program execution then Prakerin gained 75.83% score is fairly standard. (4) the evaluation of the Product: Indicators of Learning Assessment Participants Prakerin gained 69.75% score is fairly standardPenelitian ini bertujuan untuk mengevaluasi pelaksanaan Praktik Kerja Industri SMK N 3 Payakumbuh. Evaluasi Praktik Kerja Industri (Prakerin) tersebut dilihat dari komponen design, Installation, Procces, Product dan Cost  yang dihadapi dalam pelaksanaan Prakerin. Hasil penelitian menunjukan bahwa pelaksanaan Praktik Kerja Industri di SMK N 3 Payakumbuh program Keahlian Teknik Komputer Jaringan secara keseluruhan meliputi: (1) Evaluasi design: Indikator tujuan program prakerin memperoleh standar skor 81,5% baik. Kemudian untuk indikator Persiapan Program Prakerin memperoleh standar skor 80,25% cukup. (2) Evaluasi Installation: Indikator Kesiapan Guru Pembimbing memperoleh standar skor 85.33% baik. kemudian untuk Kesiapan instruktur DU/DI memperoleh standar skor 73% cukup. selanjutnya pada indikator Sarana dan Prasarana Pendukung memperoleh standar skor 82% baik. selanjutnya pada indikator Sumber Dana memperoleh standar skor 83,33% baik. selanjutnya pada indikator Relevansi Program Dengan Kebutuhan Siswa memperoleh standar skor 80,53%baik. (3) Evaluasi Process: Indikator persiapan memperoleh stdandar skor 85.6% baik. kemudian untuk indikator Pelaksanaan Program Prakerin memperoleh standar skor 75,83% cukup. (4) Evaluasi Product : Indikator Penilaian Pembelajaran Peserta Prakerin memperoleh standar skor 69.75% cukup

    Environmental-friendly extraction of chlorophyll from pineapple plantation waste for dye sensitized solar cell (DSSC) fabrication

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    Improper disposal of pineapple waste can cause negative impact to the environment. To reduce the waste, we decide to recycle it. Recently, we discover that the present of chlorophyll in the pineapple plantation waste in the leaves can be used to fabricate the Dye Sensitized Solar Cell (DSSC) which is can be categorised as a renewable energy as well as environmental-friendly. The experimental and analysis was done to obtain the best condition of chlorophyll yield from the waste. The best condition from the mechanical extraction can be achieved by uncut the processed leaves at 3 cycle for extraction cycle by using the sugarcane machine. The highest value of chlorophyll a is 52.57 mg/ml and chlorophyll b is 113.05 mg/ml

    Towards the development of sustainable tourism in Pakistan : a study of the role of tour operators

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    The literature on sustainable tourism is scant, particularly in the least developed countries. Very few studies touch upon the concept and no holistic theoretical or conceptual frameworks around the idea of sustainable tourism have been formulated. This study aims at exploring the role of tour operators in developing sustainable tourism in Pakistan and how the tour operators (TOs) conceive their role in this regard. TOs were reached through phone calls, emails, and virtual sources as face-to-face interviews were not possible due to COVID-19 pandemic and restrictions on travel by the government. In-depth interviews were conducted to gather data. Results suggest that the TOs although realize the importance of social, environmental, and economic dimensions of tourism on the communities but have no management systems in place to cater accordingly. There are no incentives in place by the government facilitate TOs to design and implement such systems. The TOs do not select a destination based on Global Sustainable Tourism Council criterion, but rather the selection of destination is mostly demand-based and profit-oriented. The study suggests that corporate profit motive is the sole criterion for decision making and is one of the major causes impeding sustainable tourism in Pakistan. The role of TOs in developing sustainable tourism is vague as the TOs do not have any systems in place to implement sustainable models. The study recommends that efforts need to be put in place to incentivize sustainable tourism in Pakistan and proper laws should be set forth by the authorities to comply by the TOs. The role of TOs is important and understood, however, there is a need to put proper systems in place

    Chlorophyll’s dependency towards electrical characteristics of banana midrib-based dye- sensitized solar cell for waste management solution

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    The application of Banana Midrib waste chlorophyll as an alternative natural dye in Dye Sensitized Solar Cell (DSSC) could be advantageous. The natural colors utilized in this study were derived from the chlorophyll of the banana midrib. TiO, chlorophyll and KI serve as a working electrode, photosensitizer, and electrolyte in the DSSC respectively. Chlorophyll, which can be extracted from majority of greenly plants, is one of the important substances in absorbing the light for energy harvesting. Since the concentration level of chlorophyll defers for each type, age or part of the plants, numerous studies related to these scopes have been actively performed. In this study, banana midrib that are mostly common waste will be benefited to extract different concentration levels of chlorophyll for the fabrication of DSSCs' purpose. The relationship between the chlorophyll’s concentration level and the output of electrical properties will be further analyzed

    Hadronic observables from SIS to SPS energies - anything strange with strangeness ?

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    We calculate p,π±,K±p, \pi^\pm, K^\pm and Λ\Lambda(+Σ0\Sigma^0) rapidity distributions and compare to experimental data from SIS to SPS energies within the UrQMD and HSD transport approaches that are both based on string, quark, diquark (q,qˉ,qq,qˉqˉq, \bar{q}, qq, \bar{q}\bar{q}) and hadronic degrees of freedom. The two transport models do not include any explicit phase transition to a quark-gluon plasma (QGP). It is found that both approaches agree rather well with each other and with the experimental rapidity distributions for protons, Λ\Lambda's, π±\pi^\pm and K±K^\pm. Inspite of this apparent agreement both transport models fail to reproduce the maximum in the excitation function for the ratio K+/π+K^+/\pi^+ found experimentally between 11 and 40 A⋅\cdotGeV. A comparison to the various experimental data shows that this 'failure' is dominantly due to an insufficient description of pion rapidity distributions rather than missing 'strangeness'. The modest differences in the transport model results -- on the other hand -- can be attributed to different implementations of string formation and fragmentation, that are not sufficiently controlled by experimental data for the 'elementary' reactions in vacuum.Comment: 46 pages, including 15 eps figures, to be published in Phys. Rev.

    Collagen-derived cryptides : machine-learning prediction and molecular dynamic interaction against Klebsiella pneumoniae biofilm synthesis precursor

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    Collagen-derived cryptic peptides (cryptides) are biologically active peptides derived from the proteolytic digestion of collagen protein. These cryptides possess a multitude of activities, including antihypertensive, antiproliferative, and antibacterial. The latter, however, has not been extensively studied. The cryptides are mainly obtained from the protein hydrolysate, followed by characterizations to elucidate the function, limiting the number of cryptides investigated within a short period. The recent threat of antimicrobial resistance microorganisms (AMR) to global health requires the rapid development of new therapeutic drugs. The current study aims to predict antimicrobial peptides (AMP) from collagen-derived cryptides, followed by elucidating their potential to inhibit biofilm-related precursors in Klebsiella pneumoniae using in silico approach. Therefore, cryptides derived from collagen amino acid sequences of various types and species were subjected to online machine-learning platforms (i.e., CAMPr3, DBAASP, dPABBs, Hemopred, and ToxinPred). The peptide-protein interaction was elucidated using molecular docking, molecular dynamics, and MM-PBSA analysis against MrkH, a K. pneumoniae’s transcriptional regulator of type 3 fimbriae that promote biofilm formation. As a result, six potential antibiofilm inhibitory cryptides were screened and docked against MrkH. All six peptides bind stronger than the MrkH ligand (c-di-GMP; C2E)
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