Determination of Soil Permeability Using an Acoustic Technique

2007 ◽  
Author(s):  
J. W. Kim ◽  
Chung R. Song
Keyword(s):  
Soil Permeability ◽  
Acoustic Technique

Estimation of Soil Permeability Using an Acoustic Technique

2008 ◽  
Vol 134 (12) ◽  
pp. 1829-1832 ◽  
Author(s):  
Chung R. Song ◽  
Jinwon Kim ◽  
A. H.-D. Cheng
Keyword(s):  
Soil Permeability ◽  
Acoustic Technique

Assessment of Uncertainty in the Determination of the Boltzmann Constant by an Acoustic Technique

2010 ◽  
Vol 32 (1-2) ◽  
pp. 413-426 ◽  
Author(s):  
Michael de Podesta ◽  
Gavin Sutton ◽  
Robin Underwood ◽  
Michael Perkin ◽  
Stuart Davidson ◽  
...  
Keyword(s):  
Boltzmann Constant ◽  
Acoustic Technique

scholarly journals Non-Invasive Determination of Waste Drum Pressurization by Acoustic Resonance Spectroscopy

1993 ◽  
Vol 333 ◽  
Author(s):  
Dipen N. Sinha ◽  
Stanley T. Kosiewicz
Keyword(s):  
Acoustic Resonance ◽  
Resonance Spectroscopy ◽  
Non Invasive ◽  
Waste Storage ◽  
Acoustic Technique ◽  
Resonance Frequencies ◽  
Noninvasive Characterization ◽  
Acoustic Resonance Spectroscopy

ABSTRACTPreliminary work suggests that Acoustic Resonance Spectroscopy (ARS) can non-invasively determine gas pressurization of waste drums. This is done by exciting the various mechanical vibrational modes of the test drum and analyzing the characteristics of the resulting resonance frequencies and their higher harmonics. If the contained waste is a liquid, the liquid level and also some properties of the liquid including density can be determined. Additional work is needed to exploit this novel acoustic technique for noninvasive characterization of waste storage drums.

A New Determination of the Gas Constant by an Acoustic Technique

1976 ◽  
pp. 608-614 ◽  
Author(s):  
T. J. Quinn ◽  
A. R. Colclough ◽  
T. R. D. Chandler
Keyword(s):  
Acoustic Technique

scholarly journals STRATEGI SISTEM PENGELOLAAN AIR LIMBAH DOMESTIK DI KECAMATAN UJUNGBERUNG, CIBIRU, PANYILEUKAN, DAN CILEUNYI

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Fatinah Arina A'isyah ◽  
Mohammad Rangga Sururi
Keyword(s):  
Management System ◽  
Swot Analysis ◽  
Domestic Wastewater ◽  
Wastewater Management ◽  
Soil Permeability ◽  
The People ◽  
Development Direction ◽  
Management Institutions ◽  
Centralized System

Sistem Pengelolaan Air Limbah Domestik (SPALD) harus diawali dengan penentuan strategi yang tepat, ditentukan mempertimbangkan kondisi wilayah perencanaan. Wilayah perencanan merupakan wilayah perbatasan antara Kota Bandung dan Kabupaten Bandung, sehingga berpotensi untuk dibangun SPALD regional meliputi 4 kecamatan, yaitu Kecamatan Ujungberung, Cibiru, Panyileukan di Kota Bandung, dan Kecamatan Cileunyi di Kabupaten Bandung. Saat ini SPALD Setempat (SPALDS) di Bandung Timur menggunakan sistem on site individual dan komunal, serta 11,04% masyarakat di Kabupaten Bandung masih membuang air limbah langsung ke sungai. Penelitian ini akan  mengidentifikasi startegi  SPALD menggunakan metode analisis Strenghts, Weakness, Opportunities, Threats (SWOT) kuantitatif. Parameter yang digunakan berdasarkan Pedoman Penyusunan Rencana Induk SPAL tahun 2016, parameter tersebut adalah kepadatan penduduk, topografi, resiko sanitasi, akses air minum, akses sanitasi layak, kawasan kumuh, permeabilitas tanah, kedalaman muka air tanah, pembiayaan daerah, kelembagaan pengelola air limbah, dan tingkat pendidikan. Hasil analisis SWOT, menunjukkan  Kecamatan Panyileukan berada pada kuadran II (strategi selektif sistem terpusat), dengan arah pengembangannya dari SPALDS menjadi SPALDT kawasan. Sedangkan Kecamatan Ujungberung, Cibiru, dan Cileunyi berada pada kuadran III (strategi agresif sistem terpusat), dengan arah pengembangan SPALDT skala kota. Kata kunci: analisis SWOT, arah pengembangan, sistem pengelolaan air limbah domestik, strategi. The Domestic Wastewater Management System (SPALD) must begin with the determination of an appropriate strategy, determined by considering the conditions of the planning area. The planning area is the border area between Bandung City and Bandung Regency, so that the potential for regional SPALD to be built includes 4 districts, namely Ujungberung, Cibiru, Panyileukan in Bandung City, and Cileunyi District in Bandung Regency. Currently SPALD Local (SPALDS) in East Bandung uses individual and communal on site systems, and 11.04% of the people in Bandung Regency still dispose of their waste water directly into the river. This research will identify SPALD strategies using quantitative Strenghts, Weakness, Opportunities, Threats (SWOT) analysis methods. The parameters used are based on the 2016 SPAL Master Plan Preparation Guidelines, these parameters are population density, topography, sanitation risk, access to drinking water, access to proper sanitation, slum areas, soil permeability, groundwater level depth, regional funding, wastewater management institutions, and education level. The results of the SWOT analysis show Panyileukan sub-district is in quadrant II (centralized system selective strategy), with its development direction from SPALDS to regional SPALDT. Meanwhile, Ujungberung, Cibiru, and Cileunyi Subdistricts are in quadrant III (an aggressive strategy with a centralized system), with the direction of city-scale SPALDT development. Keywords: development direction, domestic wastewater management system, strategy, SWOT analysis.

scholarly journals Determination of radon index on the test site “Botanical Garden − BAS”, Sofia

2020 ◽  
Vol 81 (3) ◽  
pp. 209-211
Author(s):  
Dimitar Antonov ◽  
Kremena Ivanova ◽  
Bistra Kunovska ◽  
Sava Kolev ◽  
Monika Mutovska ◽  
...  
Keyword(s):  
Fault Zone ◽  
Test Site ◽  
Botanical Garden ◽  
In Situ Measurements ◽  
Soil Permeability ◽  
Radon Activity ◽  
Radon Content

The study deals with pilot investigations of the radon index in Bulgaria. In situ measurements of the radon activity and soil permeability at 3 sites one over and two – close to fault zone have been performed. The results show that higher radon content is detected in the fault zone.

scholarly journals Zmienność przepływów niżówkowych w wybranych zlewniach pogórskich i beskidzkich w latach 1988‑2017 = Variability of low flow in Polish Carpathians (foothills and Beskidy Mountains) catchments in the period 1988‑2017

2021 ◽  
Vol 93 (1) ◽  
pp. 5-25
Author(s):  
Witold Bochenek ◽  
Małgorzata Kijowska-Strugała
Keyword(s):  
Land Use ◽  
Forest Cover ◽  
Arable Land ◽  
Low Flow ◽  
Soil Permeability ◽  
Low Flows ◽  
Polish Carpathians ◽  
Continental Climate

Water flow in the Polish Carpathians was exemplified by long-term (1988‑2017) analysis of two foothill catchments (of the Skawinka and Stobnica) and two catchments in the Beskidy Mountains (of the Soła and Osława). The work allowed for the determination of the duration of low flows and outflow deficits in relation to changes in thermal and precipitation conditions, as well as land use and land cover. In the selected catchments, the 30-year period brought a decrease in the area of arable land and an increase in the area of grassland and forest. In addition built-up areas increased by 495% between 1990 and 2018. A greater susceptibility to the occurrence of total drought was noted for the Beskidy Mountains catchments, in which the duration of low flows and outflow deficit was greater than in the foothill catchments. At the same time, the mountain catchments proved less susceptible to the emergence of deep drought, on account of their higher levels of forest cover and levels of soil permeability. In regional terms, the durations of low flows and outflow deficits were greater in the catchments located in the eastern part of the Carpathians (those of the Stobnica and Osława), in line with this area’s intensified features of a continental climate.

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