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Ricardo M. S. F. Almeida, Eva Barreira and Pedro Moreira
The measurement of ventilation rates is crucial in understanding buildings? performances, but can be a rather complex task due to the time-dependency of wind and buoyancy forces, which are responsible for the pressure differences that induce air movement...
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Andrew Benson, Matthew Zane, Timothy E. Becker, Ate Visser, Stephanie H. Uriostegui, Elizabeth DeRubeis, Jean E. Moran, Bradley K. Esser and Jordan F. Clark
Gas exchange across the air-water interface is a critical process that maintains adequate dissolved oxygen (DO) in the water column to support life. Oxygen reaeration rates can be accurately measured using deliberate gas tracers, like sulfur hexafluoride...
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Andrew Benson, Matthew Zane, Timothy E. Becker, Ate Visser, Stephanie H. Uriostegui, Elizabeth DeRubeis, Jean E. Moran, Bradley K. Esser and Jordan F. Clark
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Fukang Ma, Zhenfeng Zhao, Yangang Zhang, Jun Wang, Yaonan Feng, Tiexiong Su, Yi Zhang and Yuhang Liu
The scavenging process for opposed-piston folded-cranktrain (OPFC) diesel engines can be described by the time evolution of the in-cylinder and exhaust chamber residual gas rates. The relation curve of in-cylinder and exhaust chamber residual gas rate is...
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Naohide Shinohara, Toshiyuki Kataoka, Koichi Takamine, Michio Butsugan, Hirokazu Nishijima and Masashi Gamo
A modified procedure was developed for the measurement of the effective air exchange rate, which represents the relationship between the pollutants emitted from indoor sources and the residents? level of exposure, by placing the dosers of tracer gas at l...
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An experimental study was conducted in a room resembling an office in a laboratory environment. The study involved investigating the ability of corner-placed stratum ventilation in order to evaluate the ventilation’s effectiveness and local thermal...
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Kyoung S. Ro, Hong Li, Cathleen J. Hapeman, Lowry A. Harper, Thomas K. Flesch, Peter M. Downey, Laura L. McConnell, Alba Torrents and Qi Yao
Vegetative environmental buffers (VEBs), which are composed of tolerant trees, shrubs, and tall grasses, can be used to control and reduce the transport of ammonia (NH3) emissions from animal feeding operations (AFOs). However, the effectiveness of VEBs ...
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Marino Domenico Barberio, Francesca Gori, Maurizio Barbieri, Andrea Billi, Roberto Devoti, Carlo Doglioni, Marco Petitta, Federica Riguzzi and Sergio Rusi
Understanding natural variations of Rn (222Rn) concentrations is the fundamental prerequisite of using this radioactive gas as a tracer, or even precursor, of natural processes, including earthquakes. In this work, Rn concentrations in groundwater were c...
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Rayco Marrero-Diaz, Francisco J. Alcalá, Nemesio M. Pérez, Dina L. López, Gladys V. Melián, Eleazar Padrón and Germán D. Padilla
The atmospheric chloride mass balance (CMB) method was used to estimate net aquifer recharge in Las Cañadas Caldera, an endorheic summit aquifer area about 2000 m a.s.l. with negligible surface runoff, which hosts the largest freshwater reserve in Teneri...
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Yuwei Dai, Minzhang Hou, Haidong Wang and Wanli Tu
Source location identification methods are typically applied to steady-state conditions under pure indoor or outdoor environments, but under time-varying wind conditions and coupled indoor and outdoor environments, the applicability is not clear. In this...
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Tessa Kvist Hansen
Naturally ventilated cold attics are traditional in many Danish single-family homes. The moisture balance of these attics is dependent on sufficient ventilation for removal of excess moisture. Moisture is generated in the dwelling below, and transported ...
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Thomas Neil McManus and Assed Haddad
It is believed that isolated subsurface structures of an infrastructure do not ventilate through opening(s) in manhole covers. The literature has almost no information on this topic. This study reports on considerations involved in the development and ut...
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Elizabeth Avery, Richard Bibby, Ate Visser, Bradley Esser and Jean Moran
During the dry months of the water year in Mediterranean climates, groundwater influx is essential to perennial streams for sustaining ecosystem health and regulating water temperature. Predicted earlier peak flow due to climate change may result in decr...
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