Jurnal Teknosains
Not a member yet
253 research outputs found
Sort by
KINERJA KOLEKTOR TIPE PLAT DATAR PADA MESIN PENDINGIN ADSORPSI TENAGA SURYA DI KOTA MEDAN
No full textThe performance of a flat plate collector on adsorption refrigerator driven by the solar collector was investigated in the present work. Based on a study conducted no researcher studies the performance of solar collectors used in adsorption cooling system. The adsorbent used in the collector was 20 kg ordinary powder activated carbon of coconut shell produced in the Sumatera Utara province of Indonesia, 5 liters of methanol as adsorbate and 6 liters of water as the medium that was cooled. The experiments were carried out under varying weather conditions with total solar radiation about 12619-17807 kJ/m2/cycle in Medan city. The experimental results show that the values of collector efficiency obtained were about 52.11-53.92%. The values of coefficient of performance (COP) obtained were in the range of 0.0318-0.0449. The results of the statistical study suggest that the effect of the weather conditions on collector efficiency thereabout 96%
MORPHOLOGICAL VARIATION OF EARLY DAYS TO FLOWERING ON LOCAL RICE ACCESSIONS COLLECTED FROM PONOROGO
No full textLocal rice germplasm may play an important role in improving rice quality. One of the important to improve rice cultivar trait is days to flowering. Ponorogo is one of district of center rice production area where the farmers cultivate local rice varieties which is early days to flowering or short vegetative phase. Exploration of local early days to flowering rice accessions in Ponorogo resulted in 9 accessions. Flowering times ranged 51 to 91 days after sowing. Based on morphological variation, there were variation of plant height, number of leaves, number of tiller, number of panicle, number of grains per panicle, flowering time, grain size and weight of 100 grains. Morphological dendrogram made possible to identify three groups at similarity 0.88.
PERAN ORANG TUA TERHADAP KETERAMPILAN MENYIKAT GIGI DAN MULUT PADA ANAK DISABILITAS INTELEKTUAL
No full textIntellectual disability is a group of children with impaired intellectual function below an average of 70 or lower. This group experienced problems in terms of self-development skills such as tooth brushing. Tooth brushing is an activity the mechanical removal of from food scraps, germs and plaque. Growing and developing independence of children with intellectual disability was influenced by the role of parents. Parents who have a role as basic of children behavior was contributed to process child growth. This study aims to determine the relationship of parental role to the tooth brushing skill in intellectual disability children.This research method is analytic survey and used cross sectional design. Sampling technique using total sampling. The population in this research is intellectual disability children in SLB Pamardi Putra Banguntapan Bantul Yogyakarta as many as 30 people. The role of parent was measured using questionnaire and tooth brushing skills measured using check list (from Special Care Advocates in Dentistry (SAID) guidelines, 1995). Data analysis using Spearman correlation with significance level (0,05). The result of this research is p = 0.185 (> 0.05), it shows that there is no significant correlation between parent role to oral and brushing skills in intellectual disability children in SLB Pamardi Putra Banguntapan Yogyakarta
CLINICAL DECISION SUPPORT SYSTEMS THEORY AND PRACTICE
No full textClinical Decision Support Systems Theory and Practice, adalah buku teks dalam seri Health Informatics yang membahas tentang sistem pendukung keputusan klinis. Pada buku ini terbagi menjadi dua kelompok bahasan, Pertama membahas tentang dasar dalam mengembangkan sistem Clinical Decision Supprot System (CDSS) dan evaluasinya. Kedua, Aplikasi CDSS dalam praktik klinis. Bahasan tersebut menjadikan pembaca dapat memperoleh gambaran tentang dasar-dasar yang diperlukan dalam membangun dan mengaplikasikan CDSS dalam praktik klinis. Secara rinci buku tersebut terbagi menjadi 11 Bab, yang dapat dikelompokkan menjadi 7 Bab tentang konsep dalam pengembangan CDSS, dan 4 Bab tentang aplikasi CDSS dalam praktik klinis
PENGEMBANGAN ALAT UKUR EVALUASI DAN PERANCANGAN PRODUK KURSI RODA
No full textA wheelchair is one of the mobility aids for people with disabilities. Availability of wheelchair type is very decisive for users based on the limitations they have. The problem felt by users in Indonesia today, especially in Yogyakarta, is that users have not got the right kind of wheelchairs with the needs, with certain limitations. This study aims to develop a wheelchair evaluation and to know the user's expectation of the wheelchair design. This study shows that there are problems due to the users not getting a wheelchair that suits their needs. The wheelchair design that the users want are the wheelchair with 3 wheels and have new feature
ENHANCING CAPACITY OF LOCAL COMMUNITY TOWARDS AGRICULTURAL DROUGHT (CASE IN PLOSO VILLAGE, YOGYAKARTA)
No full textThis paper reveals the capacity enhancement efforts for local community and assessing their vulnerability level regarding the drought event in Ploso Village of Gunungkidul Regency – Yogyakarta Special Province. The vulnerability assessment was conducted to measure the impact of agricultural drought and also focusing on enhancing the community’s absorbing capacity, buffering capacity and local response capacity. The village drought vulnerability assessment was conducted by using indicator-based calculation towards 50 family-heads of Ploso Village as the assessment samples. Absorbing capacity enhancement was conducted by facilitating and educating local farmers to conduct organic farming as well as increasing their local response capacity by focusing on rainwater harvesting, while buffering capacity enhancement is conducted by empowering the housewives for creating alternate household income The disaster preparedness community is created as the centre of intervention to educate local people about drought disaster and preparing the local teenagers to become future focal points in their area
APLIKASI STRUCTURAL EQUATION MODELLING (SEM) PADA KAJIAN PENGARUH KELEMBAGAAN, MODAL SOSIAL JIWA KEWIRAUSAHAAN TERHADAP KINERJA USAHA BUDIDAYA IKAN NILA DI KABUPATEN SLEMAN
No full textSocial capital becomes the main capital that must be owned by an entrepreneur, thus increasing the entrepreneurial spirit. The purpose of this research is to know the institutional condition of the members of the group of tilapia fish farm, the social capital of the member of the cultivation group of tilapia, the entrepreneurial spirit, farm performance of the tilapia fishery group, and the institutional influence, social capital, entrepreneurial spirit to the business performance of the nila fish farming group in Sleman District. The method used in this research is a method of a mixed method, with 150 responders and analyzed with SEM. The results showed that more than 50% of institutional conditions, social capital, entrepreneurial spirit, and business performance of tilapia fish farming group members of beginners, middle, and main in Ngemplak and Cangkringan Subdistrict Sleman Regency has a high category. There is no significant institutional influence on the influence of social capital on the entrepreneurial. Institutional is not a moderator variable between social capital relations and entrepreneurial spirit. This indicates that the higher/ lower institutional will not result in changes the higher/ lower the influence of social capital on entrepreneurial
PENGARUH PENAMBAHAN IRON MILL-SCALE DAN TEMBAGA SEBAGAI MATERIAL PELAT BIPOLAR
No full textBipolar plate is an important component of proton exchange membrane fuel cell (PEMFC), which provides fuel and oxidant to reactive sites, collect produced current, and mechanical support for the cell in the stacks. This study concerns to find the optimum composition and sintering temperature of iron mills-cale in matrix aluminium as bipolar plate material. This work firstly carried out by downsizing aluminium flake from scrap into powder using high energy milling for 120 min and treated the iron mill-scale at 300 and 1000 oC for 60 min. The waste aluminium powder, after sieving of 150 mesh, was mixing with iron mill-scale containing 30 to 50 vol.% using shaker mill for 10 min. The mixed powders were then pressed 300 MPa and sintered with temperature of 500-600 oC for 60 min and flowed with N2 gas. The structural changes, physical, and mechanical properties of the sintered sample were studied by optical micrograph, density, porosity, hardness Vickers, and electrical conductivity test. The result showed that the optimum composition Fe is 40 vol. % and sinter temperature is 550 oC. Conductivity value of 45.406 S/cm and hardness 183.96 HV hasn’t meet expectation. Cu added containing 4-10 vol. % Fe aims to improve physical properties composites as bipolar plate material PEMFC. The result showed Cu 4 vol. % Fe can increase conductivity value 64.481 S/cm and hardness 340.13 HV
SERI METHODS IN MOLECULAR BIOLOGY
No full textSejarah telah mencatat andil penelitian dalam menciptakan kehidupan yang lebih baik. Salah satunya penemuan antibiotik pada 1940an yang diawali dari pengamatan Alexander Fleming pada 1928 terhadap fenomena kematian bakteri Staphylococcus dalam cawan petri yang juga ditumbuhi jamur. Sebelum ditemukan antibiotik, tidak ada obat untuk pneumonia, gonorrhea atau demam rematik sehingga rumah sakit dipenuhi pasien sedangkan tidak banyak yang dapat dilakukan dokter untuk menolong. Tidak mengherankan jika kemudian Alexander Fleming bersama Howard Florey, Ernst Chain yang merupakan tim penemu antibiotik penicillin, dianugerahi Nobel Prize untuk Fisiologi dan Kedokteran pada 1945