Deteksi liran Air dalam Media Pori Pemodelan Fisik Dengan Metoda Self-Potensial

Proceeding Satek II UNILA LampungDalam studi ini telah dilakukan pemodelan fisik untuk mendeteksi aliran air dalam medium berpori menggunakan metoda self-potensial (SP). Pemodelan fisik dilakukan untuk memetakan distribusi anomali SP di permukaan yang menggambarkan pergerakan air di bawah permukaan. Potensial elektrokinetik(PE) atau streaming potential adalah potensial yang dibangkitkan oleh aliran air dalam medium berpori sedangkan anomali SP adalah potensial yang terukur dipermukaan yang dsisebabkan oleh PE. Oleh karena itu, hasil pemetaan distribusi SP di permukaan dapat diperkirakan dimana debit aliran air yang besar dan ke mana arah air itu mengalir. Hasil pemodelan fisik dapat diketahui bahwa aliran air yang masuk ke dalam medium pori adalah mengikuti kontur anomali SP yang yang terukur di prmukaan. Jika semakin besar anomali SP maka aliran air di lokasi itu semakin besar. Sedangkan arah aliran air adalah garis tanda panah yang tegaklurus dengan kontur SP

Studi Hidrogeokimia Air Tanah di Daerah Kebumen Bagian Barat, Indonesia

Abstrak - Studi penilaian hidrogeokimia air tanah telah dilakukan di Kebumen bagian barat yang dicirikan dengan fitur karstnya berdasarkan parameter fisikokimia (pH, konduktivitas elektrik, zat padat terlarut, kesadahan, Ca2+, Mg2+, Fe3+, Mn2+, K+, Na+, Li+, and NH4+, HCO3-, Cl-, SO42-, NO2-, and NO3-). Data sampel air diambil dari 25 sumber air tanah dangkal berupa mata air, goa basah dan sumur. Data fisikokimianya mengindikasikan hanya ada kontaminasi alami maupun dari manusia yang sangat rendah. Dari diagram Piper ditunjukkan bahwa fasies air tanah yang berada di daerah ini adalah kalsium-magnesium bikarbonat yang mengindikasikan efek litologi karbonatan yang sangat kuat ke air tanah. Diagram Durov menunjukkan bahwa air tanah di daerah studi hanya mengalami pertukaran ion yang sangat rendah yang mengindikasikan kemurnian air tanah ini dari dampak kontaminasi alami maupun dampak antropogenik.Kata kunci: hidrogeokimia, air tanah, karst, Kebumen Abstract - A groundwater hydrogeochemistry assessment study has been conducted in western Kebumen, characterized by its karstic features based on physicochemical parameters (pH, electric conductivity, total dissolved solids, hardness, Ca2+, Mg2+, Fe3+, Mn2+, K+, Na+, Li+, and NH4+, HCO3-, Cl-, SO42-, NO2-, and NO3-). Water samples were taken from 25 shallow groundwater sources such as springs, wet caves, and wells. The physicochemical data indicates very low natural and/or human contamination. The Piper diagram shows that the groundwater facies in this area is calcium-magnesium bicarbonate, indicating a very strong effect of carbonate lithology on groundwater. The Durov diagram shows that the groundwater in the study area only undergoes very low ion exchange, indicating the purity of this groundwater from natural contamination or anthropogenic impacts.Keywords: hydrogeochemistry, groundwater, karst, Kebume

Pengaruh Pemberian Informasi melalui Media Film Animasi terhadap Peningkatan Perilaku Kesehatan Gigi dan Mulut pada Siswa SDN Kedondong, Kecamatan Sokaraja, Kabupaten Banyumas

Dental and oral health can directly affect the quality of life, and is a serious problem in Indonesia, especially in children. Based on the results of the Basic Health Research (Riskesdas) in 2018, 54% of children aged 5-9 years and 41.4% of children aged 10-14 years experienced dental caries. Dental and oral health is influenced by children's behavior which includes knowledge, attitudes, and actions. The objective of this study was to determine the effect of providing information through animated film media on improving dental and oral health behavior in students of SDN Kedondong, Sokaraja, Banyumas. Methods: This type of research is a pre-experimental design one group pretest- posttest by comparing behavioral values which include components of knowledge, attitudes and actions about dental and oral health before and after giving information through animated films, measuring the number of caries using the DMF-T/def-index. t, as well as the severity of dental caries that were not treated using the PUFA/PUFA index. The research population was students of SDN Kedondong while the number of samples was 60 people who were taken purposively by considering the inclusion-exclusion criteria. Data was collected using pre-test and post-test questionnaires and measurements of DMF-T, def-t, and PUFA/PUFA indexes. Data analysis used was non-parametric comparative Wilcoxon signed rank test because the data were not normally distributed. Results: This study showed that there was a significant difference (p<0.05). Dental and oral health behavior between before and after being given information through animated films to students at SDN Kedondong, Sokaraja, Banyumas effective in improving dental and oral health behavior in students of SDN Kedondong, Sokaraja District, Banyumas Regency

Proyek infrastruktur dan sengketa korupsi

x, 272 hlm.: 21 c

Proyek Infrastruktur dan Sengketa Konstruksi

xii, 272 hlm.; 21 c

Integrated Soil Investigation for the Geothermal Pipe Route in Steep Area

A high terrain area with steep slope is one of the geotechnical problems in the geothermal field, which caused instability of the main facilities. A long period of heavy rain and the topography such as a steep slope could cause the land slides in the surrounding area of the main geothermal facilities, such as geothermal pipeline.Once landslides occur, either a part or all of the geothermal facilities may be moved away from their original positions. The data of soil profile obtained only from the borehole data shows a limitation to identify the shape of landslide and the surface of failure. It may be difficult to evaluate the slope stability accurately only by using this data. Hence, integrated soil investigation which consists of borehole, Standard Penetration Test, Cone Penetration Test, Geophysical Survey, and Engineering Geology Mapping and Ground Water is proposed in this paper and this method can not only improve the geotechnical data but also discuss the mechanism of landslide more accurately.Papers reported in the 7th International Symposium on "Novel Carbon Resource Sciences" Jun. 23-24, 201

Integrated Soil Investigation for the Geothermal Pipe Route in Steep Area

Papers reported in the 7th International Symposium on \u22Novel Carbon Resource Sciences\u22 Jun. 23-24, 2011A high terrain area with steep slope is one of the geotechnical problems in the geothermal field, which caused instability of the main facilities. A long period of heavy rain and the topography such as a steep slope could cause the land slides in the surrounding area of the main geothermal facilities, such as geothermal pipeline.Once landslides occur, either a part or all of the geothermal facilities may be moved away from their original positions. The data of soil profile obtained only from the borehole data shows a limitation to identify the shape of landslide and the surface of failure. It may be difficult to evaluate the slope stability accurately only by using this data. Hence, integrated soil investigation which consists of borehole, Standard Penetration Test, Cone Penetration Test, Geophysical Survey, and Engineering Geology Mapping and Ground Water is proposed in this paper and this method can not only improve the geotechnical data but also discuss the mechanism of landslide more accurately

Integrated Exploration Method to Determine Cu Prospect in Seweden District, Blitar, East Java

AbstractSeweden district is located in the mountain range of Southern Java shows the indication of polymetallic mineralization. The area of study is characterized by the crystalline limestone, clay stone intercalation (Campurdarat Formation), and andesitic-basaltic-lava, porphyry lattice, rhyolite, dacite (Mandalika Formation). This area is chosen as the presence of copper mineralization, strong alteration, and magmatic activities that exposed because of the human activities.Aerial photo shows that the lineaments structure dominated in the area of study. Petrography and mineragraphy analysis shows the alteration mineral e.g. quartz (SiO2), dickite (Al2Si2O5(OH)4), pyrite (FeS2), sericite KAl2[Si3AlO10](OH,F), plagioclase (NaAlSi3O8) and cryptocrystalline mineral. Silicified quartz is clearly identified, where the fragment consist of quartz and sericite mineral.Geochemical study in this area is taken by analyzing samples from stream sediment, Bulk Leach Extractable Gold (BLEG), panned concentrate and rock chip samples. Gold grades varies from 4 ppb (stream sediment sample), 110 ppb (rock chip sample), 56 ppb (panned concentrate sample), and 293 ppb (BLEG sample). Copper grades varies from 1760 oom (rock chip sample), 66ppm (panned concentrate sample). It is predicted that hydrothermal activities in Seweden district controls the mineralization