Results 61 to 70 of about 124,691 (298)

Influence of longwall gateroad convergence on the process of mine ventilation network-model tests

International Journal of Mining Science and Technology, 2019
Hard coal mines are required to constantly ventilate mine workings to ensure that the air composition is at a certain humidity and temperature level that is comfortable for underground mine workers, especially in deep deposits.
Andrzej Walentek, Tomasz Janoszek, Stanisław Prusek, Aleksander Wrana   +3 more
doaj   +1 more source

Predictive significance of the six-minute walk distance for long-term survival in chronic hypercapnic respiratory failure [PDF]

, 2007
Background: The 6-min walk distance ( 6-MWD) is a global marker of functional capacity and prognosis in chronic obstructive pulmonary disease ( COPD), but less explored in other chronic respiratory diseases.
Arzt, Michael, Pfeifer, Michael, Heidtkamp, Felix, Budweiser, Stephan, Schroll, Stephan, Schmidbauer, Kathrin, Heinemann, Frank, Hitzl, Andre P., Jörres, Rudolf A.   +8 more
core   +1 more source

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

Advanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab, Jack F. Murphy, Michael Bartolf‐Kopp, Jenny C‐C Hsin, Alice Chernaik, Frank McCaughan, Yan Yan Shery Huang, Tomasz Jungst, Jürgen Groll   +8 more
wiley   +1 more source

The impact of natural ventilation on the adaptive reuse of a Taiwanese heritage house: an analysis using anemometers and CFD

Journal of Asian Architecture and Building Engineering
Taiwan is currently experiencing high energy use, particularly in buildings. Traditional houses have the advantage of being able to adapt to their surroundings effectively.
Dany Perwita Sari, Yun Shang Chiou, William Sugianto   +2 more
doaj   +1 more source

The structure of cross-ventilation flow in an isolated cylindrical building: Numerical study

Energy and Built Environment
Cross-ventilation serves as an efficient means to expel pollutants and heat from buildings, requiring no energy consumption due to variations in wind pressure. The structure of the cross-ventilation flow significantly influences ventilation effectiveness.
Puxian Ding, Di Fan, Ye Feng, Shiming Liu, Xiaoqing Zhou   +4 more
doaj   +1 more source

A review of evidence linking ventillation rates in dwellings and respiratory health - a focus on house dust mites and mould [PDF]

, 2004
This paper reviews the literature for evidence of links betwen ventilation rates in dwellings and moisture related respiratory health with a particular focus on house dust mites (HDM) and fungal growth.
Ucci, M, McCarthy, M, McCarthy, M., Mumovic, D, Ridley, I., Oreszczyn, T., Ridley, I, Oreszczyn, T, Pretlove, S, Ucci, M., Davies, M, Mumovic, D., Davies, M., Singh, J., Pretlove, S., Singh, J   +15 more
core  

A Geometrically Transient Platform for Bioelectronic Implants

Advanced Materials, EarlyView.
Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik, John D. Goodwin, Atharv Naik, Philip Coatsworth, Ioi Chit Cheung, Farbod Amirghasemi, Anies Sohi, Ehsan Abedi, Tayeb Tadlaoui, Maral P. S. Mousavi, Andriy S. Kozlov, Victoria Salem, Andrew S. Cowburn, Firat Guder   +13 more
wiley   +1 more source

Effect of facemask oxygenation with and without positive pressure ventilation on gastric volume during anesthesia induction in patients undergoing laparoscopic cholecystectomy or partial hepatectomy: a randomized controlled trial

BMC Anesthesiology, 2022
Background Studies focusing on the relationship between gastric volume and facemask oxygenation without ventilation during apnea in anesthesia induction are scarce.
Guangting He, Liyun Ma, Ke Tian, Yuqi Cao, Zaisheng Qin   +4 more
doaj   +1 more source

A full-scale field study for evaluation of simple analytical models of cross ventilation and single-sided ventilation [PDF]

, 2020
In this study, we evaluated several simple natural ventilation models of cross ventilation and single-sided ventilation with data measured in a full-scale field study in London.

core   +1 more source

Topology‐Orchestrated Multi‐physical Energy Control in Turtle Shell‐Inspired Metamaterials

Advanced Materials, EarlyView.
A turtle shell‐inspired lattice metamaterial efficiently manages acoustic, fluid‐thermal, and mechanical energy flows simultaneously. The unique hybrid‐coupling architecture achieves superior sound attenuation via pore‐cavity resonance, facilitates effective airflow transport, and maximizes mechanical energy absorption through multistage cell ...
Xi Wang, Shiyi Wang, Bingzhi Chen, Xinwei Li   +3 more
wiley   +1 more source