Results 101 to 110 of about 24,810 (288)

Civilian Occupational Exposure to Vapors, Gas, Dust, or Fumes and Respiratory Health Among United States Military Veterans

American Journal of Industrial Medicine, EarlyView.
ABSTRACT Background We investigated associations of self‐reported and job exposure matrix (JEM) assigned civilian occupational exposure to vapors, gas, dust, or fumes (VGDF) with respiratory symptoms among previously deployed US Veterans. Methods An interviewer‐administered questionnaire ascertained self‐reported civilian occupational VGDF exposure.
Sahra Mohazzab‐Hosseinian, Carrie A. Redlich, Anna M. Korpak, Andrew K. I. Timmons, Nicholas L. Smith, Karen S. Nakayama, Farrah Kheradmand, Vincent S. Fan, Michael Jerrett, Philippe R. Montgrain, Christine H. Wendt, Ware G. Kuschner, Emily S. Wan, Eric Garshick, Paul D. Blanc   +14 more
wiley   +1 more source

Kinetics of Gas Emission from Heated Moulding Sands Together with the On-line Assessment of H2 and O2 Fractions - New Investigation Method

Archives of Foundry Engineering, 2016
The new investigation method of the kinetics of the gas emission from moulding sands used for moulds and cores is presented in this paper. The gas evolution rate is presented not only as a function of heating time but also as a function of instantaneous ...
Mocek J., Zych J.
doaj   +1 more source

Improved Dry‐Pressing Strategy for Fabricating Double‐Sided Rough YSZ Electrolyte Thin Films and Their Performance in Solid Oxide Cells

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study addresses limitations of the conventional dry‐pressing method for electrolyte‐supported films—smooth surfaces, excessive thickness, and fragile supports inducing damage. We propose an innovative camphor–quartz sand composite architecture to construct a five‐layer (camphor/quartz sand/YSZ/quartz sand/camphor) system, enabling thin ...
Hong Chang, Hewei Xu, Haoyu Li, Jiachun Niu, Lina Zhang, Chenying Yao, Yiyi Zhang, Huili Chen, Chuan Dong   +8 more
wiley   +1 more source

The BTEX emission from moulding sands with furan resin dependence on the VOC content and loss on ignition

Metalurgija, 2015
The article contains the results of emission BTEX (benzene, toluene, ethylobenzene and xylenes) during thermal destruction (500 – 1 300 °C) of moulding sand with furan resin.
S. Żymankowska-Kumon
doaj  

Thermooxidative stability of PMMA composites [PDF]

, 2012
Tato práce se zabývá studiem termooxidační stability kompozitů polymethylmethakrylátu (PMMA) plněného mikro a nanočásticemi siliky. V připravených vzorcích byly použity různé objemové zlomky a různé velikosti částic siliky.
Čechová, Eva
core  

Development tendencies of moulding and core sands

China Foundry, 2011
Further development of the technology for making moulding and core sands will be strictly limited by tough requirements due to protection of the natural environment. These tendencies are becoming more and more tense, so that we will reach a point when even processes, that from technological point of view fulfill high requirements of the foundry ...
Stanislaw M. Dobosz1, Petr Jelinek, Katarzyna Major-Gabrys   +2 more
openaire   +1 more source

Preparation and Performance Evaluation of a Self‐Generated Particle Plugging Agent Based on Thermosetting Resin

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT A thermosetting in situ curing resin microsphere system has been developed. It has controllable phase transition time and particle size. This system addresses the current challenges of low strength, shear susceptibility, and short phase transition time in polymer microsphere blockers and thermoplastic particle blockers.
Baolei Jiao, Lifeng Chen, Minghao Xue, Xuemin Yan, Jiamin Zhang, Feifan Liu   +5 more
wiley   +1 more source

Artificial earth sculpture [PDF]

, 1968
William Newsham Blair (1841-91) was born in Scotland, and trained there as an engineer and surveyor. He emigrated to Dunedin at the end of 1863 and took employment with the Otago Provincial Survey Department at the beginning of the new year.
Blair, W.N.
core   +1 more source

Inter‐microscope comparability of dental microwear texture data obtained from different optical profilometers: Part II Deriving instrument‐specific correction equations for meta‐analyses using published data

The Anatomical Record, EarlyView.
Abstract Dental microwear texture analysis (DMTA) has emerged as a valuable method for investigating the feeding ecology of vertebrates. Over the past decade, three‐dimensional topographic data from microscopic regions of tooth surfaces have been collected, and surface texture parameters have been published for both extant and fossil species.
Mugino O. Kubo, T. Kubo, Ellen Schulz‐Kornas, T. M. Kaiser, Daniela E. Winkler   +4 more
wiley   +1 more source

Emission of polycyclic aromatic hydrocarbons (PAHs) and benzene, toluene, ethylbenzene and xylene (BTEX) from the furan moulding sands with addition of the reclaim

Metalurgija, 2014
In this paper, the results of decomposition of a moulding sand with furfuryl resin also on a quartz matrix and with additions of a reclaimed material, under industrial conditions, are presented.
M. Holtzer, A. Bobrowski, R. Dańko, A. Kmita, S. Żymankowska-Kumon, M. Kubecki, M. Górny   +6 more
doaj