To see the other types of publications on this topic, follow the link: Collection of Samples Fuels.

Journal articles on the topic 'Collection of Samples Fuels'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Collection of Samples Fuels.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Čubars, Edgars, and Liena Poiša. "ANALYSIS OF ASH CONTENT IN COMPOSITE BIOMASS FUELS." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 3 (June 15, 2017): 31. http://dx.doi.org/10.17770/etr2017vol3.2524.

Full text
Abstract:
The study reveals research of ash content in different composite biomass fuels. It contains analysis of samples obtained from various local Latvian biomass types, i.e. reed, wood, hemp, flax shives and peat, by combining them in different proportions. Ash is a by-product derived from combustion process consisting mostly of inorganic substances that are left after a fuel is burnt. High level of ash content in a fuel is undesirable because it causes problems in automation of biomass combustion process. Previous studies carried out by the author show that average ash content in reeds is 2%, which
APA, Harvard, Vancouver, ISO, and other styles
2

de Bakker, Christopher J., and Peter M. Fredericks. "Determination of Petroleum Properties by Fiber-Optic Fourier Transform Raman Spectrometry and Partial Least-Squares Analysis." Applied Spectroscopy 49, no. 12 (1995): 1766–71. http://dx.doi.org/10.1366/0003702953965975.

Full text
Abstract:
The petroleum products unleaded gasoline and reformate have been analyzed by Fourier transform (FT) Raman spectrometry with the use of a fiber optic cable that allows a measurement to be carried out remotely from the spectrometer. Samples were contained in glass cuvettes, and collection of high-quality spectra was simple. Fuel properties such as research octane number (RON), motor octane number (MON), density, benzene content, and flexible volatility index (FVI) were determined by application of the partial least-squares multivariate statistical approach. Analytically useful calibrations ( R2
APA, Harvard, Vancouver, ISO, and other styles
3

Król, Anna, and Ewa Kukulska-Zając. "Rtęć w próbkach mieszanin gazowych – przegląd metod pobierania i oznaczania rtęci." Nafta-Gaz 76, no. 11 (2020): 846–53. http://dx.doi.org/10.18668/ng.2020.11.10.

Full text
Abstract:
The determination of the composition of gas mixtures, especially those analytes which exist, for example, as contaminants for the main components of the gas mixture, very often requires the concentration of the analyte so that it can be quantified. The analysis of gaseous environmental samples, including air and air samples at workplaces, is difficult, which results from: the need to work with samples with an extensive matrix and heterogeneous distribution of pollutants, the stability of the analyte and the presence of interfering substances (interferents) in the sample. On the other hand, the
APA, Harvard, Vancouver, ISO, and other styles
4

White, Judith, Jack Gilbert, Graham Hill, et al. "Culture-Independent Analysis of Bacterial Fuel Contamination Provides Insight into the Level of Concordance with the Standard Industry Practice of Aerobic Cultivation." Applied and Environmental Microbiology 77, no. 13 (2011): 4527–38. http://dx.doi.org/10.1128/aem.02317-10.

Full text
Abstract:
ABSTRACTBacterial diversity in contaminated fuels has not been systematically investigated using cultivation-independent methods. The fuel industry relies on phenotypic cultivation-based contaminant identification, which may lack accuracy and neglect difficult-to-culture taxa. By the use of industry practice aerobic cultivation, 16S rRNA gene sequencing, and strain genotyping, a collection of 152 unique contaminant isolates from 54 fuel samples was assembled, and a dominance ofPseudomonas(21%),Burkholderia(7%), andBacillus(7%) was demonstrated. Denaturing gradient gel electrophoresis (DGGE) of
APA, Harvard, Vancouver, ISO, and other styles
5

Кравцова, Людмила, та Lyudmila Kravtsova. "NATURAL SCIENСE COLLECTIONS OF THE COAL MUSEUM AT THE FEDERAL RESEARCH CENTRE OF COAL AND COAL CHEMISTRY OF SIBERIAN BRANCH OF THE RUSSIAN ACADEMY OF SCIENCES AS A SCIENTIFIC SYSTEM OF KNOWLEDGE ABOUT COAL". Bulletin of Kemerovo State University. Series: Biological, Engineering and Earth Sciences 2017, № 2 (2017): 55–60. http://dx.doi.org/10.21603/2542-2448-2017-2-55-60.

Full text
Abstract:
This article features an analysis of the results of practical activities on formation and systematization of natural scientific collections in The Coal Museum of FRS CCC SB RAS. The theoretical-methodological approach of museology employed is aimed at a complex of selected coal samples related to each other by their common characteristics; it determines the uniformity of the subject of the study, as well as its scientific and informational value; this approach servers as a basis for the analysis of museum collections, which provide a body of scientific-informational knowledge about coal. The i
APA, Harvard, Vancouver, ISO, and other styles
6

Smith, Damon M., Tianqu Cui, Marc N. Fiddler, Rudra P. Pokhrel, Jason D. Surratt, and Solomon Bililign. "Laboratory studies of fresh and aged biomass burning aerosol emitted from east African biomass fuels – Part 2: Chemical properties and characterization." Atmospheric Chemistry and Physics 20, no. 17 (2020): 10169–91. http://dx.doi.org/10.5194/acp-20-10169-2020.

Full text
Abstract:
Abstract. There are many fuels used for domestic purposes in east Africa, producing a significant atmospheric burden of the resulting aerosols, which includes biomass burning particles. However, the aerosol physicochemical properties are poorly understood. Here, the combustion of eucalyptus, acacia, and olive fuels was performed at 500 and 800 ∘C in a tube furnace, followed by immediate filter collection for fresh samples or introduction into a photochemical chamber to simulate atmospheric photochemical aging under the influence of anthropogenic emissions. The aerosol generated in the latter e
APA, Harvard, Vancouver, ISO, and other styles
7

Kurata, Shoji, and Naoyuki Aizawa. "Comparison of Retention Capacities of Oil Sorbents for Collection of Volatile Petroleum Samples." Journal of the Japan Petroleum Institute 53, no. 5 (2010): 313–18. http://dx.doi.org/10.1627/jpi.53.313.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Towner, Ronald H. "Collecting and Caring for Tree-Ring Samples in the Southwest." Advances in Archaeological Practice 3, no. 4 (2015): 397–406. http://dx.doi.org/10.7183/2326-3768.3.4.397.

Full text
Abstract:
AbstractDendrochronology is the most precise and accurate dating technique available to archaeologists, with resolution to the year and sometimes season. As biological specimens from human-produced contexts, dendroarchaeological samples inherently contain three kinds of information: chronological, behavioral, and environmental. The purpose of this short article is to educate archaeologists on how to avoid degrading any of these three types of information through improper sample selection, collection, preparation, or transportation techniques. Dendroarchaeology is not without limitations. First
APA, Harvard, Vancouver, ISO, and other styles
9

Kurpiel, Kamil. "The Impact of the Structure of the Sampler on the Representativeness of LPG Samples." Applied Mechanics and Materials 797 (November 2015): 377–82. http://dx.doi.org/10.4028/www.scientific.net/amm.797.377.

Full text
Abstract:
This article refers to the traditional solution of the non-dismantable sampler and to the dismantable sampler applied as a new solution. This research describes the results of a research project on how the structure of the sampler for assembling and storage of LPG samples influences the representativeness of samples under study. The research was carried out in two directions : analysis of gas samples for the current PN-EN 589, PN-EN ISO 4257 standards and analysis of microscopic and macroscopic inner surface of the sampler. It was observed the formation of contamination layers in samplers. The
APA, Harvard, Vancouver, ISO, and other styles
10

Brudi, Letícia C., Franciele R. Adolfo, Paulo C. do Nascimento, et al. "Emission and Collection of Polycyclic Aromatic Hydrocarbons From Raw Asphalt Samples Heated at 130 °C." Energy & Fuels 34, no. 9 (2020): 11248–57. http://dx.doi.org/10.1021/acs.energyfuels.0c01913.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Lehrle, R. S., H. West, and M. L. Wyszyński. "On-Line Mass Spectrometric Characterization of Hydrocarbons in Engine Exhaust Gases." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 209, no. 4 (1995): 307–24. http://dx.doi.org/10.1243/pime_proc_1995_209_218_02.

Full text
Abstract:
Mass spectrometry provides a powerful and versatile method for the characterization of the unburnt and also the pyrolysed and partially oxidized gaseous hydrocarbon species present in exhaust gases. Flame ionization detection, the usual analysis method for measuring exhaust hydrocarbons, can give only a total hydrocarbon figure when used on-line. A mass spectrometer can perform the on-line characterization of the individual gaseous hydrocarbon species in the exhaust and can detect any trends in their concentrations. This permits the rapid assessment of experimental approaches for reducing thes
APA, Harvard, Vancouver, ISO, and other styles
12

Tianyu, Mao, Li Yajuan, and Chang Fang. "Research progress of monitoring technology of ship-source air pollutants in china emission control area." E3S Web of Conferences 206 (2020): 02006. http://dx.doi.org/10.1051/e3sconf/202020602006.

Full text
Abstract:
I After the implementation of ship emissions control area, the urgent need for the practical monitoring technology. This paper comprehensively studies the international and domestic cases of ship emission control monitoring: The following methods are used: direct collection of fuel oil samples for analysis, collection of ship exhaust samples and analysis, remote sensing observation of ship exhaust and analysis, as well as the use of fixed-point monitoring station system to monitor air quality. X-ray fluorescence spectroscopy is used to analyze the fuel sulfur content directly, and the carbon b
APA, Harvard, Vancouver, ISO, and other styles
13

Singh, Rishikesh Kumar, Arnab Sarkar, and Jyoti Prasad Chakraborty. "Influence of Alternate Fuels on the Performance and Emission from Internal Combustion Engines and Soot Particle Collection Using Thermophoretic Sampler: A Comprehensive Review." Waste and Biomass Valorization 10, no. 10 (2018): 2801–23. http://dx.doi.org/10.1007/s12649-018-0338-2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Gray, Miranda E., Luke J. Zachmann, and Brett G. Dickson. "A weekly, continually updated dataset of the probability of large wildfires across western US forests and woodlands." Earth System Science Data 10, no. 3 (2018): 1715–27. http://dx.doi.org/10.5194/essd-10-1715-2018.

Full text
Abstract:
Abstract. There is broad consensus that wildfire activity is likely to increase in western US forests and woodlands over the next century. Therefore, spatial predictions of the potential for large wildfires have immediate and growing relevance to near- and long-term research, planning, and management objectives. Fuels, climate, weather, and the landscape all exert controls on wildfire occurrence and spread, but the dynamics of these controls vary from daily to decadal timescales. Accurate spatial predictions of large wildfires should therefore strive to integrate across these variables and tim
APA, Harvard, Vancouver, ISO, and other styles
15

LOYOLA, Josiane, Simone Lorena QUITERIO, Viviane ESCALEIRA, and Graciela ARBILLA. "DETERMINATION OF TRACE METALS DUE TO THE PRODUCTION AND USE OF DIESEL THROUGH THE AIR QUALITY MONITORING OF IMPACTED AREAS." Periódico Tchê Química 06, no. 12 (2009): 7–14. http://dx.doi.org/10.52571/ptq.v6.n12.2009.8_periodico12_pgs_7_14.pdf.

Full text
Abstract:
The petroleum industry has difficulties to assess the trace metal content in liquid fuels. In this work, it is proposed to solve this problem determining these metals by collecting particulate matter atmospheric samples and analysing their metal content. Samples of total particulate matter and of inhalable particles (PM10) were collected in a bus station in the period August 2006-February 2007. The only significant emission source in that location are the buses, fueled by diesel, since light duty vehicles account for about 1-2% of the total vehicular flux and no other activities are developed
APA, Harvard, Vancouver, ISO, and other styles
16

Bados, Raquel, Eduardo Tolosana, and Luis Saúl Esteban. "Evaluation of a Harvester-Baler System Operating in a Rockrose (Cistus laurifolius L.) Shrubland." Croatian journal of forest engineering 41, no. 2 (2020): 191–203. http://dx.doi.org/10.5552/crojfe.2020.688.

Full text
Abstract:
Biomass collection could contribute to the reduction of wildfire prevention costs by obtaining solid biofuels from shrublands that pose a high fire risk, using mechanical harvesting methods that have not been sufficiently tested in shrub formations. The objective of this study is to evaluate the performance of a harvester-baler system (Biobaler WB55) for collecting rockrose (Cistus laurifolius L.) shrublands biomass, to asses the influence of the cutting rotor tool (blades or hammers) on weight and surface productivities and operating costs, as well as to determine the influence of the standin
APA, Harvard, Vancouver, ISO, and other styles
17

Saitoh, Katsumi, Akihiro Fushimi, Koichiro Sera, and Nobuyuki Takegawa. "Elemental analysis of jet engine lubrication oil and jet fuel using in-air PIXE." International Journal of PIXE 28, no. 03n04 (2018): 85–92. http://dx.doi.org/10.1142/s0129083518500171.

Full text
Abstract:
To understand the elemental characteristics of the exhaust particles from a jet aircraft, we performed an element analysis using an in-air PIXE system of the different lubrication oils of a jet engine (Mobil Jet Oil II, Mobil Jet Oil 254 and Eastman Turbo Oil 2380) and the jet fuel (JET A-1) to determine the effects on the exhaust particles. A high concentration (1,400–2,500 wt.-ppm) of P was detected from the analyzed three oil samples. The high concentration of P is probably due to the tricresyl phosphate (TCP: C[Formula: see text]H[Formula: see text]O4P) contained in the oil samples. The S
APA, Harvard, Vancouver, ISO, and other styles
18

Sklar, Rachel, Zeyi Zhou, Marley Zalay, Ashley Muspratt, and S. Katharine Hammond. "Occupational Exposure to Endotoxin along a Municipal Scale Fecal Sludge Collection and Resource Recovery Process in Kigali, Rwanda." International Journal of Environmental Research and Public Health 16, no. 23 (2019): 4740. http://dx.doi.org/10.3390/ijerph16234740.

Full text
Abstract:
Background: Little is known about occupational exposures that occur along fecal sludge collection and resource recovery processes. This study characterizes inhaled endotoxin exposure to workers of a municipal scale fecal sludge-to-fuel processes in Kigali, Rwanda. Methods: Forty-two task-based air samples were collected from workers in five tasks along the fecal sludge collection and resource recovery process. Samples were processed for endotoxin using the limulus amebocyte lysate (LAL) test. To account for exposure variability and compare measured concentrations to established exposure limits
APA, Harvard, Vancouver, ISO, and other styles
19

Mustafa, Angga, Vethy Octaviani, and Fera Indasari. "THE INFLUENCE OF COMMUNITY SERVICE ADVERTISEMENT MINISTRY OF PEOPLE’S HOUSING IN TELEVISION TOWARD COMMUNITY ATTITUDES ABOUT INCREASING OIL FUEL." SENGKUNI Journal (Social Science and Humanities Studies) 1, no. 2 (2020): 117–30. http://dx.doi.org/10.37638/sengkuni.1.2.117-130.

Full text
Abstract:
This study entitled the effect of public service announcements on the Ministry of public housing on television on people's attitudes about the rise in fuel prices. The purpose of this study was to determine whether there was an influence of ad impressions with community attitudes. This research has two variables, they are public service advertisement (x) and attitude (y). The method used in this study is a quantitative method, data collection techniques using samples from a population and using a questionnaire as a primary data collection tool. The number of samples in this study were 40 respo
APA, Harvard, Vancouver, ISO, and other styles
20

FLORES M., J., and F. ALDAPE. "PIXE STUDY OF AIRBORNE PARTICULATE MATTER IN NORTHERN MEXICO CITY." International Journal of PIXE 11, no. 01n02 (2001): 61–67. http://dx.doi.org/10.1142/s0129083501000098.

Full text
Abstract:
The contribution to the atmospheric pollution in Mexico City's conurbation that comes from the northern area has been considered significant for a long time. Therefore, it is important to determine its elemental composition as well as their correlation in sites along the suspected trajectories of airborne particulate matter. Samples were collected simultaneously in two sampling sites along the prevailing wind trajectory in northern Mexico City, and its elemental composition were determined by PIXE. The Sample collection was performed daily from 17 February 14 March 1997 in Xalostoc, an industr
APA, Harvard, Vancouver, ISO, and other styles
21

Cheam, Wei-Yong, Lin-Sea Lau, and Chooi-Yi Wei. "Factors influencing the residence’s intention to adopt solar photovoltaic technology: a case study from Klang Valley, Malaysia." Clean Energy 5, no. 3 (2021): 464–73. http://dx.doi.org/10.1093/ce/zkab021.

Full text
Abstract:
Abstract Recently, the Malaysian government has targeted to achieve the 20% renewable-energy goal by 2025. Despite the Malaysian government’s having taken initiatives in promoting the use of renewable energy for more than a decade, to date, more than three-quarters of the electricity supply in Peninsular Malaysia is generated from the burning of fossil fuels. Apparently, the development of renewable energy is still slow and in its infancy. The current study intends to identify the predictors (environmentalism, cost, knowledge and personal innovativeness) that influence the residential intentio
APA, Harvard, Vancouver, ISO, and other styles
22

Muhammad, Jaafer S., Kareem Ali Jasim, and Auday H. Shaban. "Determining Heavy Metals and other Elements Concentrations in the Soil at Baquba-Iraq." Key Engineering Materials 886 (May 2021): 273–80. http://dx.doi.org/10.4028/www.scientific.net/kem.886.273.

Full text
Abstract:
The present study aims to determine and calculate the concentration of some heavy elements (Pb, Hg, Cu, Ni, Fe, Cr, Co and Cd) in addition to the elements (Mg, Na, Ca, CL, K, C, S and SI), which are Possible sources of soil pollution in downtown (Baquba, Canaan, Muhammad Sakran, and Al-Mamal area), Diyala Governorate in Iraq. To achieve this goal, 5 samples of Diyala soil were collected. Soil samples included areas (industrial, residential, agricultural) with an average sample rate for each region with a depth (0-10 cm). After collecting the samples, they were sorted and compressed to prepare
APA, Harvard, Vancouver, ISO, and other styles
23

Gandla, Madhavi, Carlos Martín, and Leif Jönsson. "Analytical Enzymatic Saccharification of Lignocellulosic Biomass for Conversion to Biofuels and Bio-Based Chemicals." Energies 11, no. 11 (2018): 2936. http://dx.doi.org/10.3390/en11112936.

Full text
Abstract:
Lignocellulosic feedstocks are an important resource for biorefining of renewables to bio-based fuels, chemicals, and materials. Relevant feedstocks include energy crops, residues from agriculture and forestry, and agro-industrial and forest-industrial residues. The feedstocks differ with respect to their recalcitrance to bioconversion through pretreatment and enzymatic saccharification, which will produce sugars that can be further converted to advanced biofuels and other products through microbial fermentation processes. In analytical enzymatic saccharification, the susceptibility of lignoce
APA, Harvard, Vancouver, ISO, and other styles
24

Daniels, Roger E., Anthony F. Harrison, John A. Parkinson, and Graham Hall. "BURIAL AND BREAKDOWN OF OIL IN COASTAL DUNE SYSTEMS." International Oil Spill Conference Proceedings 1995, no. 1 (1995): 577–80. http://dx.doi.org/10.7901/2169-3358-1995-1-577.

Full text
Abstract:
ABSTRACT In 1992 and 1994, sites where oiled beach material, resulting from tanker spills at sea, had been buried in sand dunes in 1978 were located. Analysis of samples from one site (Hemsby, Norfolk) was inconclusive but samples from Pendine in south Wales contained small quantities of hydrocarbon residues and bacterial populations capable of metabolizing catechol. Gas sampling also showed elevated concentrations of volatile hydrocarbons and carbon dioxide within the deposit compared with controls in adjacent sand dunes. Following the beaching of heavy fuel oil at Pendine in January 1994, oi
APA, Harvard, Vancouver, ISO, and other styles
25

Nelson, Kellen, Jayne Boehmler, Andrey Khlystov, et al. "A Multipollutant Smoke Emissions Sensing and Sampling Instrument Package for Unmanned Aircraft Systems: Development and Testing." Fire 2, no. 2 (2019): 32. http://dx.doi.org/10.3390/fire2020032.

Full text
Abstract:
Poor air quality arising from prescribed and wildfire smoke emissions poses threats to human health and therefore must be taken into account for the planning and implementation of prescribed burns for reducing contemporary fuel loading and other management goals. To better understand how smoke properties vary as a function of fuel beds and environmental conditions, we developed and tested a compact portable instrument package that integrates direct air sampling with air quality and meteorology sensing, suitable for in situ data collection within burn units and as a payload on multi-rotor small
APA, Harvard, Vancouver, ISO, and other styles
26

Todorović, Dejan, and Zoran Zdravkovski. "Development of a trap for fuel exhaust particulate matter under driving conditions and GC-MS method for their analysis." Macedonian Journal of Chemistry and Chemical Engineering 30, no. 1 (2011): 97. http://dx.doi.org/10.20450/mjcce.2011.74.

Full text
Abstract:
Simple and useful GC/MS method was developed in order to analyze the toluene soluble components in particulate matter from diesel exhaust. Easily adaptable specially designed trap was built which could be mounted on exhaust pipe of different vehicles. It was filled with different materials on which particles were collected. After collection of the particles, the bare trap and different materials were washed and soaked with toluene. In some cases extraction process was speeded up with ultrasonification of the samples for 30 min. Samples were filtered and concentrated to 125‒500 ml and afterward
APA, Harvard, Vancouver, ISO, and other styles
27

Theeraviriya, Chalermchat, Rapeepan Pitakaso, Kittima Sillapasa, and Sasitorn Kaewman. "Location Decision Making and Transportation Route Planning Considering Fuel Consumption." Journal of Open Innovation: Technology, Market, and Complexity 5, no. 2 (2019): 27. http://dx.doi.org/10.3390/joitmc5020027.

Full text
Abstract:
This study presents the Location Routing Problem (LRP) for which we have created a model for the integration of locating facilities and vehicle routing decisions to solve the problem. The case study is the Palm Oil Collection Center, which is also important for the supply chain system. A mathematical model was made to minimize the total cost of a facility-opening cost, fixed cost of vehicle uses and fuel consumption cost. The fuel consumption cost relies on the distance and road conditions, in case of poor physical condition of a road, and its width, which can be affected the speed of the vehi
APA, Harvard, Vancouver, ISO, and other styles
28

Ottmar, Roger D., J. Kevin Hiers, Bret W. Butler, et al. "Measurements, datasets and preliminary results from the RxCADRE project – 2008, 2011 and 2012." International Journal of Wildland Fire 25, no. 1 (2016): 1. http://dx.doi.org/10.1071/wf14161.

Full text
Abstract:
The lack of independent, quality-assured field data prevents scientists from effectively evaluating and advancing wildland fire models. To rectify this, scientists and technicians convened in the south-eastern United States in 2008, 2011 and 2012 to collect wildland fire data in six integrated core science disciplines defined by the fire modelling community. These were fuels, meteorology, fire behaviour, energy, smoke emissions and fire effects. The campaign is known as the Prescribed Fire Combustion and Atmospheric Dynamics Research Experiment (RxCADRE) and sampled 14 forest and 14 non-forest
APA, Harvard, Vancouver, ISO, and other styles
29

PANERO, P. dos S., J. dos S. PANERO, F. dos S. PANERO, R. G. GUEDES, F. S. E. D. V. DE FARIA, and A. F. R. RODRIGUEZ. "POTENTIAL OF NEAR INFRARED SPECTROSCOPY-NIR ALLIED THE MULTIVARIATE ANALYSIS FOR GEOGRAPHICAL DISCRIMINATION OF BURITI (MAURITIA FLEXUOSA L.) AMAZONIAN OIL." Periódico Tchê Química 15, no. 29 (2018): 113–22. http://dx.doi.org/10.52571/ptq.v15.n29.2018.113_periodico29_pgs_113_122.pdf.

Full text
Abstract:
Pulp oils from buriti fruit (Mauritia Fleuxosa L.), from the Amazon region, were obtained from different locations of the state of Roraima - Brazil, for the application of Near Infrared Spectrometry with Fourier Transform (FTNIR) (PCA) and Hierarchical Cluster Analysis (HCA) as a methodological alternative for geographical discrimination of buriti collection points, which has been the focus of research related to bioactive compound compositions and presented potential for oil extraction for use in the fuel, pharmaceutical, cosmetic and food industries. In total, twenty samples of these oils we
APA, Harvard, Vancouver, ISO, and other styles
30

Payton, Ryan L., Mark Fellgett, Brett L. Clark, Domenico Chiarella, Andrew Kingdon, and Saswata Hier-Majumder. "Pore-scale assessment of subsurface carbon storage potential: implications for the UK Geoenergy Observatories project." Petroleum Geoscience 27, no. 2 (2021): petgeo2020–092. http://dx.doi.org/10.1144/petgeo2020-092.

Full text
Abstract:
The growing importance of subsurface carbon storage for tackling anthropogenic carbon emissions requires new ideas to improve the rate and cost of carbon capture and storage (CCS) project development and implementation. We assessed sandstones from the UK Geoenergy Observatories (UKGEOS) site in Glasgow, UK and the Wilmslow Sandstone Formation (WSF) in Cumbria, UK at the pore scale to indicate suitability for further assessment as CCS reservoirs. We measured porosity, permeability and other pore geometry characteristics using digital rock physics techniques on microcomputed tomographic images o
APA, Harvard, Vancouver, ISO, and other styles
31

Asi, Lisda L., and Vatra Ayu Cahyani. "The Effect of Education and Training on Employee Performance at PT. PERTAMINA (persero)." Jambura Science of Management 2, no. 1 (2020): 08–14. http://dx.doi.org/10.37479/jsm.v2i1.4434.

Full text
Abstract:
The research objective was to find out to what extent the effect of education and training on employee performance at PT. PERTAMINA (persero) Fuel Oil Terminal of Gorontalo. The data collection was performed by distributing a questionnaire to respondents who have met the standard of the determined sample hence the research data were classified as primary data. The research samples were 30 people. The data were obtained from observation, interview, questionnaire, and documentation. Then, the data analysis used simple linear regression through the assistance of SPSS version 22 program. The findi
APA, Harvard, Vancouver, ISO, and other styles
32

Dong, Chengli, Peter S. Hegeman, Andrew J. G. Carnegie, and Hani Elshahawi. "Downhole Measurement of Methane Content and GOR in Formation Fluid Samples." SPE Reservoir Evaluation & Engineering 9, no. 01 (2006): 7–14. http://dx.doi.org/10.2118/81481-pa.

Full text
Abstract:
Summary Formation fluid sampling early in the life of a well ensures that vital information is available for timely input to field planning decisions. For example, in subsea wells, flow assurance is a major concern, and formation fluid samples from openhole logging help operators optimize investment in both upstream and downstream facilities. When a formation fluid sample is taken from a well drilled with oil-based mud (OBM), sample contamination by the OBM filtrate is a critical factor for the accurate measurement of the sample pressure/volume/temperature (PVT) properties. A technique of moni
APA, Harvard, Vancouver, ISO, and other styles
33

Yang, Weiqiang, Yanli Zhang, Xinming Wang, et al. "Volatile organic compounds at a rural site in Beijing: influence of temporary emission control and wintertime heating." Atmospheric Chemistry and Physics 18, no. 17 (2018): 12663–82. http://dx.doi.org/10.5194/acp-18-12663-2018.

Full text
Abstract:
Abstract. While residential coal/biomass burning might be a major and underappreciated emission source for PM2.5, especially during winter, it is not well constrained whether burning solid fuels contributes substantially to ambient volatile organic compounds (VOCs), which are precursors to secondary organic aerosols (SOAs) that typically have a higher contribution to particulate matter during winter haze events. In this study, ambient air samples were collected in 2014 from 25 October to 31 December at a rural site on the campus of the University of Chinese Academy of Sciences (UCAS) in northe
APA, Harvard, Vancouver, ISO, and other styles
34

Pervez, S., M. S. Siddique, H. Y. Abdullah, et al. "DETERMINATION OF DIVERSE ENVIRONMENTAL POLLUTION LEVEL FROM SELECTED AREAS OF RAWALPINDI, PAKISTAN." Journal of Mountain Area Research 2 (August 7, 2017): 16. http://dx.doi.org/10.53874/jmar.v2i0.25.

Full text
Abstract:
Anthropogenic contaminants arising from both stationary (power plants, industries and residential heating) and mobile sources (road traffic) can harm ambient air quality in urban areas. Depending upon their physical state, these pollutants are classified as liquid and vapor phases and are subsequently transported to the Earth’s surface through dry and wet deposition. After the deposition of these pollutants onto the surface of earth various health effects caused by these pollutants occurred like cardiovascular diseases and hypertension. In this study four different locations/sites were selecte
APA, Harvard, Vancouver, ISO, and other styles
35

Al-Meshari, Ali A., Sunil L. Kokal, Peter D. Jenden, and Henry I. Halpern. "An Investigation of PVT Effects on Geochemical Fingerprinting of Condensates From Gas Reservoirs." SPE Reservoir Evaluation & Engineering 12, no. 01 (2009): 88–95. http://dx.doi.org/10.2118/108441-pa.

Full text
Abstract:
Summary One of the tools used for the characterization of gas reservoirs is the geochemistry of gas condensates. The fingerprinting of gas condensates by gas chromatography, in particular, may provide information regarding reservoir compartmentalization, which can be a major uncertainty at the early-field-appraisal stage. An important concern is the capture of suitable liquid samples. When the flowing bottomhole pressure falls below the dewpoint pressure, for example, condensate will drop out near the wellbore and the captured sample may not be representative of the formation fluid. We conduct
APA, Harvard, Vancouver, ISO, and other styles
36

Mauseth, Gary S., Sharon Svarny-Livingston, Scott M. Arnold, and Gerald M. Erickson. "THE M/V SELENDANG AYUOIL SPILL SUBSISTENCE SEAFOOD SAMPLING PROGRAM AND PUBLIC HEALTH EVALUATION PROCESS." International Oil Spill Conference Proceedings 2008, no. 1 (2008): 1185–91. http://dx.doi.org/10.7901/2169-3358-2008-1-1185.

Full text
Abstract:
ABSTRACT On December 8, 2004, the M/V Selendang AYU, a bulk freighter, ran aground on the western shoreline of Unalaska Island, Alaska, spilling an estimated 339,538 gallons of intermediate fuel oil and 14,680 gallons of marine diesel. A primary concern arising from this incident was the potential contamination of traditional subsistence seafood resources consumed by tribal members and others on Unalaska Island. The process of addressing this concern consisted of the following components: 1) formation of a subsistence seafood ‘core’ or management team that included representatives of the local
APA, Harvard, Vancouver, ISO, and other styles
37

Rhodes, Christopher J. "Plastic Pollution and Potential Solutions." Science Progress 101, no. 3 (2018): 207–60. http://dx.doi.org/10.3184/003685018x15294876706211.

Full text
Abstract:
A review is presented of the manufacture and use of different types of plastic, and the effects of pollution by these materials on animal, human and environmental health, insofar as this is known. Since 2004, the world has made as much plastic as it did in the previous half century, and it has been reckoned that the total mass of virgin plastics ever made amounts to 8.3 billion tonnes, mainly derived from natural gas and crude oil, used as chemical feedstocks and fuel sources. Between 1950 and 2015, a total of 6.3 billion tonnes of primary and secondary (recycled) plastic waste was generated,
APA, Harvard, Vancouver, ISO, and other styles
38

Isnard, H., M. Aubert, P. Blanchet, et al. "Determination of 90Sr/238U ratio by double isotope dilution inductively coupled plasma mass spectrometer with multiple collection in spent nuclear fuel samples with in situ 90Sr/90Zr separation in a collision-reaction cell." Spectrochimica Acta Part B: Atomic Spectroscopy 61, no. 2 (2006): 150–56. http://dx.doi.org/10.1016/j.sab.2005.12.003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Alam, Mohammed S., Soheil Zeraati-Rezaei, Christopher P. Stark, Zhirong Liang, Hongming Xu, and Roy M. Harrison. "The characterisation of diesel exhaust particles – composition, size distribution and partitioning." Faraday Discussions 189 (2016): 69–84. http://dx.doi.org/10.1039/c5fd00185d.

Full text
Abstract:
A number of major research questions remain concerning the sources and properties of road traffic generated particulate matter. A full understanding of the composition of primary vehicle exhaust aerosol and its contribution to secondary organic aerosol (SOA) formation still remains elusive, and many uncertainties exist relating to the semi-volatile component of the particles. Semi-Volatile Organic Compounds (SVOCs) are compounds which partition directly between the gas and aerosol phases under ambient conditions. The SVOCs in engine exhaust are typically hydrocarbons in the C<sub>15</sub>–C<su
APA, Harvard, Vancouver, ISO, and other styles
40

Hudson, James F., Marie M. Phelan, Daniel J. Owens, James P. Morton, Graeme L. Close, and Claire E. Stewart. "“Fuel for the Damage Induced”: Untargeted Metabolomics in Elite Rugby Union Match Play." Metabolites 11, no. 8 (2021): 544. http://dx.doi.org/10.3390/metabo11080544.

Full text
Abstract:
The metabolic perturbations caused by competitive rugby are not well characterized. Our aim is to utilize untargeted metabolomics to develop appropriate interventions, based on the metabolic fluctuations that occur in response to this collision-based team sport. Seven members of an English Premiership rugby squad consented to provide blood, urine, and saliva samples daily, over a competitive week including gameday (GD), with physical demands and dietary intake also recorded. Sample collection, processing and statistical analysis were performed in accordance with best practice set out by the me
APA, Harvard, Vancouver, ISO, and other styles
41

Holland-Winkler, Angelia, Andrew Moore, and Jenna Ansley. "Exogenous Beta-Hydroxybutyrate Ketone Salts Elevate Circulating Acetoacetate Levels." Current Developments in Nutrition 5, Supplement_2 (2021): 502. http://dx.doi.org/10.1093/cdn/nzab041_017.

Full text
Abstract:
Abstract Objectives Ketones are compounds that provide both fuel and protection against various diseases; they are produced naturally by the liver or exogenously to be ingested. Beta-hydroxybutyrate is the most stable ketone and therefore, often used in ketone supplements. Beta-hydroxybutyrate interconverts with acetoacetate, the least stable ketone. Acetoacetate may offer greater neuroprotection than beta-hydroxybutyrate. Therefore, it is important to find methods to increase acetoacetate levels. The purpose of this study was to determine if exogenous beta-hydroxybutyrate salts significantly
APA, Harvard, Vancouver, ISO, and other styles
42

Rakhmetova, Svitlana O., Olena M. Vergun, Rostislav Y. Blume, et al. "Ethanol Production Potential of Sweet Sorghum in North and Central Ukraine." Open Agriculture Journal 14, no. 1 (2020): 321–38. http://dx.doi.org/10.2174/1874331502014010321.

Full text
Abstract:
Background: Sweet sorghum (Sorghum saccharatum (L.) Moench) is a unique crop with great potential to serve both the food and energy industries. It is due to the possibility of (bio)ethanol production both from the juice and biomass of this crop. The sorghum stems juice contains sugar in the levels similar to that of sugarcane. Besides, low cultivation requirements for the sweet sorghum make this crop even more attractive for sugar and ethanol production. In terms of technology, sweet sorghum is seen as a transitional feedstock for the first to the second generation bioethanol production. Howev
APA, Harvard, Vancouver, ISO, and other styles
43

Salma, Imre, Zoltán Németh, Tamás Weidinger, et al. "Source apportionment of carbonaceous chemical species to fossil fuel combustion, biomass burning and biogenic emissions by a coupled radiocarbon–levoglucosan marker method." Atmospheric Chemistry and Physics 17, no. 22 (2017): 13767–81. http://dx.doi.org/10.5194/acp-17-13767-2017.

Full text
Abstract:
Abstract. An intensive aerosol measurement and sample collection campaign was conducted in central Budapest in a mild winter for 2 weeks. The online instruments included an FDMS-TEOM, RT-OC/EC analyser, DMPS, gas pollutant analysers and meteorological sensors. The aerosol samples were collected on quartz fibre filters by a low-volume sampler using the tandem filter method. Elemental carbon (EC), organic carbon (OC), levoglucosan, mannosan, galactosan, arabitol and mannitol were determined, and radiocarbon analysis was performed on the aerosol samples. Median atmospheric concentrations of EC, O
APA, Harvard, Vancouver, ISO, and other styles
44

Pearce, J. K., A. D. La Croix, F. J. Brink, P. J. Hayes, and J. R. Underschultz. "CO2 mineral trapping comparison in different regions: predicted geochemical reactivity of the Precipice Sandstone reservoir and overlying Evergreen Formation." Petroleum Geoscience 27, no. 3 (2021): petgeo2020–106. http://dx.doi.org/10.1144/petgeo2020-106.

Full text
Abstract:
Injected CO2 streams may have geochemical reactivity to different rock types in a CO2 storage complex depending on solubility and formation water chemistry. The Precipice Sandstone and Evergreen Formation are a low-salinity reservoir–seal pair in the Surat Basin, Australia, targeted for potential CO2 storage. The kinetic geochemical CO2 reactivity of different rock facies from three regions were predicted over 30 and 1000 year time periods. No material CO2 mineral trapping in the quartz-rich Precipice Sandstone reservoir was predicted, owing to the low rock reactivity. Predicted CO2 mineral tr
APA, Harvard, Vancouver, ISO, and other styles
45

Petrovic, Goran, Milos Madic, Danijel Markovic, Predrag Milic, and Gordana Stefanovi. "Multiple criteria decision making of alternative fuels for waste collection vehicles in southeast region of Serbia." Thermal Science 20, suppl. 5 (2016): 1585–98. http://dx.doi.org/10.2298/tsci16s5585p.

Full text
Abstract:
In this paper multiple criteria decision making approach of alternative fuels for waste collection vehicles in southeast region of Serbia was presented. Eight alternative fuels and advanced vehicle technologies were ranked according to thirteen criteria, including financial, socio-technical, and environmental. Assessment of alternatives was performed by using the weighted aggregated sum product assessment method and results were verified using multi-objective optimization on the basis of ratio analysis method. Considered criteria were obtained from previous researches and by assessment of prof
APA, Harvard, Vancouver, ISO, and other styles
46

Kuk, Raymond J., and Michael V. Spagnola. "Extraction of Alternative Fuels from Fire Debris Samples*." Journal of Forensic Sciences 53, no. 5 (2008): 1123–29. http://dx.doi.org/10.1111/j.1556-4029.2008.00823.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Yusuf, Karmila, Kamaruddin Sellang, and Hariyanti Hamid. "KUALITAS PELAYANAN STASIUN PENGISIAN BAHAN BAKAR UMUM PANRENG KECAMATAN BARANTI KABUPATEN SIDENRENG RAPPANG." PRAJA: Jurnal Ilmiah Pemerintahan 7, no. 2 (2019): 52–58. http://dx.doi.org/10.51817/prj.v7i2.363.

Full text
Abstract:
This study aims to determine the quality of service affect customer satisfaction at Panreng SPBU District Baranti Sidenreng Rappang District and to find out which of the quality of services which include physical evidence, reliability, assurance, responsiveness, and empathy that have a dominant influence on customer satisfaction at Panreng SPBU Baranti District, Sidenreng Rappang Regency. The approach of the research method used in this research is a quantitative descriptive approach. The population in this study is customers who buy fuel oil at Panreng gas station, which is estimated that the
APA, Harvard, Vancouver, ISO, and other styles
48

Hodas, David R. "Law, the Laws of Nature and Ecosystem Energy Services: A Case of wilful Blindness." Potchefstroom Electronic Law Journal/Potchefstroomse Elektroniese Regsblad 16, no. 2 (2017): 66. http://dx.doi.org/10.17159/1727-3781/2013/v16i2a2344.

Full text
Abstract:
Ecosystems services include the collection, concentration, and storage of solar energy as fossil fuels (e.g., coal, petroleum, and natural gas). These concentrated forms of energy were produced by ancient ecosystem services. However, our legal and economic systems fail to recognise the value of the ecosystem service subsidies embedded in fossil fuels. This ecosystem services price subsidy causes overuse and waste of fossil fuels in the free market: fossil fuels are consumed more quickly than they can be replaced by ecosystem services and in far larger quantities than they would be if the price
APA, Harvard, Vancouver, ISO, and other styles
49

Ayas, Gizem, and Hakan Öztop. "Thermal analysis of different Refuse Derived Fuels (RDFs) samples." Thermal Science, no. 00 (2021): 249. http://dx.doi.org/10.2298/tsci201010249a.

Full text
Abstract:
As a result of the activities carried out by people to maintain their daily lives in different places such as homes, hospitals, hotels or workplaces, waste consisting of furniture, paint, batteries, food waste, sachets, bottles, fabrics, and fibers with the heterogeneous structure is called Municipal Solid Waste (MSW). Secondary fuels with higher heating value, which are generated by recycling of non-recyclable and reusable wastes in municipal solid wastes, are called as Refuse Derived Fuel (RDF). In this study, Refuse Derived Fuel1 (RDF1 : taken in December, winter season) and Refuse Derived
APA, Harvard, Vancouver, ISO, and other styles
50

Simacek, Pavel, Ivan Soucek, Milan Pospisil, Dan Vrtiska, and Hugo Kittel. "Impact of hydrotreated vegetable oil and biodiesel on properties in blends with mineral diesel fuel." Thermal Science 23, Suppl. 5 (2019): 1769–77. http://dx.doi.org/10.2298/tsci180228315s.

Full text
Abstract:
Physicochemical properties of three biofuels suitable for combustion in automotive diesel engines were compared. Two samples represented commercial hydrotreated vegetable oil (HVO) with different low temperature properties, one sample represented traditional biodiesel, fatty acid methyl esters (FAME). One HVO sample and FAME were blended into mineral diesel fuel to form two series of mixed fuels. One series represented mixed fuels containing 7, 20, 30, and 50 vol.% of HVO, the other series represented mixed fuels containing the same amount of FAME. All pure fuels as well as all prepared blends
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!