Log in

Relevant bibliographies by topics / Natural hydrogen accumulation / Journal articles

To see the other types of publications on this topic, follow the link: Natural hydrogen accumulation.

Journal articles on the topic 'Natural hydrogen accumulation'

Author: Grafiati

Published: 25 May 2024

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 'Natural hydrogen accumulation.'

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

Filippova, D. S. "Hydrogen in the geological environment: features of generation and accumulation." SOCAR Proceedings, SI2 (December 30, 2023): 6–13. http://dx.doi.org/10.5510/ogp2023si200885.

Full text

Abstract:

The article discusses the features of hydrogen accumulation in various geological, geochemical and tectonic conditions, the nature of hydrogen as a gas component of the Earth, the ratio of hydrogen in gas mixtures with other gases, the importance of hydrogen generation sources, its consumption for geological processes of various specifics. Separate criteria for assessing territories on the prospects of detecting hydrogen accumulations are proposed. The author's personal point of view is expressed regarding the directions of the search for natural hydrogen, taking into account the peculiarities

APA, Harvard, Vancouver, ISO, and other styles

2

Truche, Laurent, and Elena F. Bazarkina. "Natural hydrogen the fuel of the 21st century." E3S Web of Conferences 98 (2019): 03006. http://dx.doi.org/10.1051/e3sconf/20199803006.

Full text

Abstract:

Much has been learned about natural hydrogen (H2) seepages and accumulation, but present knowledge of hydrogen behavior in the crust is so limited that it is not yet possible to consider exploitation of this resources. Hydrogen targeting requires a shift in the long-standing paradigms that drive oil and gas exploration. This paper describes the foundation of an integrated source-to-sink view of the hydrogen cycle, and propose preliminary practical guidelines for hydrogen exploration.

APA, Harvard, Vancouver, ISO, and other styles

3

Joseph, Aimikhe, Victor, and Eyankware, Emmanuel Oghenegare. "Recent Advances in White Hydrogen Exploration and Production: A Mini Review." Journal of Energy Research and Reviews 13, no. 4 (2023): 64–79. http://dx.doi.org/10.9734/jenrr/2023/v13i4272.

Full text

Abstract:

The quest for natural or white hydrogen exploration and production emanates from the growing interest in clean, carbon-free hydrogen energy. Countries all over the world are beginning to formulate legislation to promote hydrogen production as a way of combating global warming occasioned by climate change. Currently, all avenues for producing hydrogen are either very expensive or environmentally unsustainable. White hydrogen in commercial accumulations might produce cheaper and more environmentally sustainable hydrogen energy, thus providing a viable alternative to other forms of renewable ener

APA, Harvard, Vancouver, ISO, and other styles

4

Slobodyanyuk, Ivan, Igor Rusetskyi, Larisa Shcherbakova, Michail Danilov, Gennadiy Kolbasov, and Yuriy Solonin. "The photoelectrochemical cell with hydrogen accumulation at the conditions of natural insolation." French-Ukrainian Journal of Chemistry 6, no. 2 (2018): 1–8. http://dx.doi.org/10.17721/fujcv6i2p1-8.

Full text

Abstract:

The film photoanodes based on CdSe and NT-TiO2/CdSe have been formed by the electrochemical and painting methods. It is shown that the introduction of graphene oxide into the structure of the semiconductor CdSe film promotes absorption of light and leads to improvement in their characteristics by 25-30 %. The compatibility of the cathode based on composite of hydrogen-sorbing intermetallic alloys LaNi4.5Mn0.5 + LaNi3.5Al0.7Mn0.8 with current-conductive additives in pair with the CdSe photoanode is shown. It was found that 95 – 98 % of the total current generated under the influence of sunlight

APA, Harvard, Vancouver, ISO, and other styles

5

Prinzhofer, Alain, Cheick Sidy Tahara Cissé, and Aliou Boubacar Diallo. "Discovery of a large accumulation of natural hydrogen in Bourakebougou (Mali)." International Journal of Hydrogen Energy 43, no. 42 (2018): 19315–26. http://dx.doi.org/10.1016/j.ijhydene.2018.08.193.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Fedotov, Anatoliy V., and Dmitriy A. Kovalev. "Methods of Storage and Accumulation of Hydrogen." Elektrotekhnologii i elektrooborudovanie v APK 3, no. 44 (2021): 78–85. http://dx.doi.org/10.22314/2658-4859-2021-68-3-78-85.

Full text

Abstract:

Due to the depletion of natural fossil energy carriers, hydrogen is becoming a promising alternative fuel, the advantages of which are inexhaustible reserves and its high energy and environmental indicators. The undeveloped infrastructure for the supply of hydrogen fuel to consumers, the problems of storage/accumulation of hydrogen hinder the development of hydrogen energy. (Research purpose) The research purpose is in considering modern methods of storage and accumulation of hydrogen, comparing their advantages and disadvantages. (Materials and methods) The article presents the state of the i

APA, Harvard, Vancouver, ISO, and other styles

7

Braverman, V. Ya, and B. K. Ilienko. "CRYOGENIC ACCUMULATION OF ELECTRICITY GENERATED USING RENEWABLE ENERGY SOURCES." Energy Technologies & Resource Saving, no. 2 (June 20, 2021): 22–27. http://dx.doi.org/10.33070/etars.2.2021.02.

Full text

Abstract:

Possibilities and prospects of accumulation of the electric power generated on objects of renewable energy sources - solar and wind power plants, with use of cryogenic liquids are considered. A comparison of the three most common ways of accumulating electricity: using lithium-ion batteries, hydrogen, liquid air. According to the proposed technology, the efficiency of recovery of electricity from liquid air is from 54 to 70%. The developed technology is based on cryogenic and thermal accumulation and has a high accumulation coefficient. It is shown that energy storage in cryogenic storage devi

APA, Harvard, Vancouver, ISO, and other styles

8

Baxter, Clare, Frank La Pedalina, Andrew McMahon, and Toon Hoong Lim. "Early exploration modelling of natural hydrogen systems through the use of existing open source data." Australian Energy Producers Journal 64, no. 2 (2024): S320—S324. http://dx.doi.org/10.1071/ep23210.

Full text

Abstract:

Natural hydrogen’s viability as a sustainable energy source will be enhanced through comprehensive geological modelling. This paper integrates existing open-source data to delve into the geological aspects of natural hydrogen exploration and proposes possible workflows. Geological and geophysical modelling entails characterising subsurface formations conducive to natural hydrogen generation and trapping. Utilising geological surveys, field observation, geophysical seismic and gravity data, alongside existing well logs, this analysis looks to identify regions with favourable geological conditio

APA, Harvard, Vancouver, ISO, and other styles

9

Deronzier, Jean-François, and Hélène Giouse. "Vaux-en-Bugey (Ain, France): the first gas field produced in France, providing learning lessons for natural hydrogen in the sub-surface?" BSGF - Earth Sciences Bulletin 191 (2020): 7. http://dx.doi.org/10.1051/bsgf/2020005.

Full text

Abstract:

The former Vaux-en-Bugey field, first French methane production from early 20th century, is revisited as a case study to address the present generation and accumulation theories for gases like hydrogen and helium. The volume of the initial gas in place is estimated to be 22 million m3. Based on a composition of 5% of hydrogen and 0.096% of helium, the volumes of these gases in the field were respectively around 1.1 million m3 for hydrogen and 24 000 m3 for helium. The different hypotheses of hydrogen sources are reviewed: serpentinization, hydro-oxidation of siderite, water radiolysis, bio-fer

APA, Harvard, Vancouver, ISO, and other styles

10

Lu, Chao, Bang Wang, Di Zhu, Quanyou Liu, Xuhang Zhang, and Huaiyu He. "High-Spatial-Resolution Helium Detection and Its Implications for Helium Accumulation Mechanisms." Applied Sciences 14, no. 8 (2024): 3453. http://dx.doi.org/10.3390/app14083453.

Full text

Abstract:

Helium is a scarce strategic resource. Currently, all economically valuable helium resources are found in natural gas reservoirs. Owing to helium’s different formation and migration processes compared to natural gas’s, the traditional method of collecting wellhead gas to detect helium concentration may miss helium-rich layers in the vertical direction, which will not only cause the waste of helium resources, but also restrict the study of helium migration and accumulation mechanisms. To solve this problem, we designed a helium detector based on a quadrupole mass spectrometer. Through the combi

APA, Harvard, Vancouver, ISO, and other styles

11

Boreham, Christopher J., Dianne S. Edwards, Robert J. Poreda, et al. "Helium in the Australian liquefied natural gas economy." APPEA Journal 58, no. 1 (2018): 209. http://dx.doi.org/10.1071/aj17049.

Full text

Abstract:

Australia is about to become the premier global exporter of liquefied natural gas (LNG), bringing increased opportunities for helium extraction. Processing of natural gas to LNG necessitates the exclusion and disposal of non-hydrocarbon components, principally carbon dioxide and nitrogen. Minor to trace hydrogen, helium and higher noble gases in the LNG feed-in gas become concentrated with nitrogen in the non-condensable LNG tail gas. Helium is commercially extracted worldwide from this LNG tail gas. Australia has one helium plant in Darwin where gas (containing 0.1% He) from the Bayu-Undan ac

APA, Harvard, Vancouver, ISO, and other styles

12

Abramova, O. P., and D. S. Filippova. "Geobiological features of storage hydrogen-methane mixtures in underground reservoirs." SOCAR Proceedings, SI2 (December 30, 2021): 66–74. http://dx.doi.org/10.5510/ogp2021si200548.

Full text

Abstract:

Taking into account the world and domestic experience of studying the ontogenesis of lithospheric hydrogen a combination of coupled hydrochemical, geochemical and microbiological factors of the accumulation of this natural gas together with methane in the terrigenous formations of the sedimentary cover is justified. It is predicted that various hydrochemical and microbiological processes that cause the development of carbon dioxide and sulfate corrosion of engineering structures, as well as cement of reservoir rocks and tires, can occur together with methane at industrial facilities of undergr

APA, Harvard, Vancouver, ISO, and other styles

13

Boiko, Galina I., Raushan G. Sarmurzina, Nina P. Galieva, et al. "Prospects for the use of energy-accumulating substances in solving environmental problems in the oil industry." Kazakhstan journal for oil & gas industry 5, no. 2 (2023): 99–116. http://dx.doi.org/10.54859/kjogi108653.

Full text

Abstract:

The prospects for using new-generation energy-accumulating substances based on aluminum alloys activated with activating metals (indium, gallium, tin, eutectics of low-melting metals) as non-traditional environmentally friendly sources for hydrogen production from water and energy accumulation methods, the formation of various forms of aluminum hydroxides, are discussed, which can be used in solving environmental problems in the oil industry: in technologies for complex oil treatment, destruction of abnormally stable water-oil emulsions and oil sludge, demetallization and desulphurization of h

APA, Harvard, Vancouver, ISO, and other styles

14

Wang, Xiaolin, Yucai Song, I.-Ming Chou, and Ye Qiu. "Raman spectroscopic characterization of cracking and hydrolysis of n-pentane and n-octadecane at 300–375℃ with geological implications." Energy Exploration & Exploitation 36, no. 4 (2017): 955–70. http://dx.doi.org/10.1177/0144598717748762.

Full text

Abstract:

Hydrous and anhydrous isothermal experiments on n-pentane and n-octadecane were conducted at 300–375℃ for durations up to 1094 h to evaluate the cracking and hydrolysis of hydrocarbons, using fused silica capillary capsules as micro-reactors. The chemical compositions of the gaseous products during cracking of n-octadecane at 350 and 375℃ were methane, ethane, propane, and n-butane. The aqueous product in the hydrolysis of n-pentane and n-octadecane at 300–375℃ was alcohol. Alkenes and hydrogen were not detected throughout all the isothermal experiments. Results showed that the gaseous yields

APA, Harvard, Vancouver, ISO, and other styles

15

Yusuf, Mohammad, and Bawadi Abdullah. "Fossil Fuels, Rising Population, and Global Warming: The Interlinked Phenomena." Oriental Journal of Physical Sciences 5, no. 1-2 (2020): 49–52. http://dx.doi.org/10.13005/ojps05.01-02.07.

Full text

Abstract:

Global warming is increasing due to accumulation of greenhouse gases (GHGs) in the earth’s atmosphere. This is leading to devastating consequences causing floods and droughts in different areas of the globe. The exploitation and burning of fossil fuels on a tremendous scale is the main reason for rising global warming. The approach of sustainable development may help in controlling the rising temperatures. Hydrogen fuel is one such promising alternative clean fuel, that could change the scenario as per the vision of ‘Hydrogen Economy’. A combined approach of switching to cleaner and greener fu

APA, Harvard, Vancouver, ISO, and other styles

16

Shaposhnikov, N. O., Anton S. Tsvetkov, Daria A. Strekalovskaya, Anna Nikolaeva, and Natalya A. Devyaterikova. "Physical Modeling of Steel Resistance to Hydrogen Embrittlement." Key Engineering Materials 943 (March 29, 2023): 91–96. http://dx.doi.org/10.4028/p-g4pg69.

Full text

Abstract:

Hydrogen can be used in the same energy processes as natural gas and become a tool for implementing the transition to a sustainable low-carbon economy. The level of contamination resulting from controlled combustion of hydrogen or methane-hydrogen mixture is relatively low, which will significantly reduce CO2 emissions. However, the use of hydrogen can involve considerable difficulties associated with the hydrogen compatibility of materials. With the increase in the production, storage and transportation of hydrogen gas, including through gas pipelines, hydrogen-resistant materials are needed.

APA, Harvard, Vancouver, ISO, and other styles

17

Han, Hanlin, Yixin Sun, Weixu Zhang, Zhenya Zhang, and Tian Yuan. "The Effect of Nanobubble Water Containing Cordyceps Extract and Withaferin A on Free Fatty Acid-Induced Lipid Accumulation in HepG2 Cells." Nanomaterials 13, no. 15 (2023): 2265. http://dx.doi.org/10.3390/nano13152265.

Full text

Abstract:

Cordyceps extract and withaferin A (Wi-A) are natural compounds that have therapeutic effects on non-alcoholic fatty liver disease (NAFLD). However, their efficacy is limited and a long treatment duration is usually required. To enhance their efficiency, the synergistic effects of nanobubble water (NBW) derived from nitrogen, hydrogen, and oxygen gases were investigated. Results showed that the physical properties of all three NBWs, including nanobubble density (108 particles/mL) and zeta potential (below −22 mV), were stable during 48 h of storage. Hydrogen and nitrogen NBWs did not reduce, b

APA, Harvard, Vancouver, ISO, and other styles

18

Safari, Amir, Joyashree Roy, and Mohsen Assadi. "Petroleum Sector-Driven Roadmap for Future Hydrogen Economy." Applied Sciences 11, no. 21 (2021): 10389. http://dx.doi.org/10.3390/app112110389.

Full text

Abstract:

In the climate change mitigation context based on the blue hydrogen concept, a narrative frame is presented in this paper to build the argument for solving the energy trilemma, which is the possibility of job loss and stranded asset accumulation with a sustainable energy solution in gas- and oil-rich regions, especially for the Persian Gulf region. To this aim, scientific evidence and multidimensional feasibility analysis have been employed for making the narrative around hydrogen clear in public and policy discourse so that choices towards acceleration of efforts can begin for paving the way

APA, Harvard, Vancouver, ISO, and other styles

19

Kreutzmann, Anne-Christin, and Heide N. Schulz-Vogt. "Oxidation of Molecular Hydrogen by a Chemolithoautotrophic Beggiatoa Strain." Applied and Environmental Microbiology 82, no. 8 (2016): 2527–36. http://dx.doi.org/10.1128/aem.03818-15.

Full text

Abstract:

ABSTRACTA chemolithoautotrophic strain of the familyBeggiatoaceae,Beggiatoasp. strain 35Flor, was found to oxidize molecular hydrogen when grown in a medium with diffusional gradients of oxygen, sulfide, and hydrogen. Microsensor profiles and rate measurements suggested that the strain oxidized hydrogen aerobically when oxygen was available, while hydrogen consumption under anoxic conditions was presumably driven by sulfur respiration.Beggiatoasp. 35Flor reached significantly higher biomass in hydrogen-supplemented oxygen-sulfide gradient media, but hydrogen did not support growth of the strai

APA, Harvard, Vancouver, ISO, and other styles

20

Tokmakov, Alexander A., Misaki Awamura, and Ken-Ichi Sato. "Biochemical Hallmarks of Oxidative Stress-Induced Overactivation of Xenopus Eggs." BioMed Research International 2019 (July 2, 2019): 1–7. http://dx.doi.org/10.1155/2019/7180540.

Full text

Abstract:

Egg overactivation occurs with a low frequency in the populations of naturally ovulated frog eggs. At present, its natural inducers, molecular mechanisms, and intracellular events remain unknown. Using microscopic and biochemical analyses, we demonstrate here that high levels of hydrogen peroxide-induced oxidative stress can cause time- and dose-dependent overactivation of Xenopus eggs. Lipofuscin accumulation, decrease of soluble cytoplasmic protein content, and depletion of intracellular ATP were found to take place in the overactivated eggs. Progressive development of these processes sugges

APA, Harvard, Vancouver, ISO, and other styles

21

Zemskov, A. N., A. V. Nikolaev, and D. D. Zhebelev. "A method of predicting hydrogen sulfide accumulation zones in sylvinite layers of potash mines and rapid determination of rock gas content by hydrogen sulfide." Mining Industry Journal (Gornay Promishlennost), no. 1/2024 (March 15, 2024): 60–64. http://dx.doi.org/10.30686/1609-9192-2024-1-60-64.

Full text

Abstract:

Intensification of potash salt mining, widespread use of high-performance continuous miners, involvement of gasbearing formations in mining are accompanied by release of natural poisonous gases into the atmosphere of mine workings, which explains the need to ensure safe working conditions for the miners. The article presents the researche results that helped to develop a methodology for predicting accumulation zones of one of the most hazardous poisonous gases, i.e. hydrogen sulfide. A correlation was established between the hydrogen sulfide concentration, presence of organic substances and th

APA, Harvard, Vancouver, ISO, and other styles

22

Cheng, Pengfei, Jun Wang, Zhushan Zhao, et al. "Molecular Hydrogen Increases Quantitative and Qualitative Traits of Rice Grain in Field Trials." Plants 10, no. 11 (2021): 2331. http://dx.doi.org/10.3390/plants10112331.

Full text

Abstract:

How to use environmentally friendly technology to enhance rice field and grain quality is a challenge for the scientific community. Here, we showed that the application of molecular hydrogen in the form of hydrogen nanobubble water could increase the length, width, and thickness of brown/rough rice and white rice, as well as 1000-grain weight, compared to the irrigation with ditch water. The above results were well matched with the transcriptional profiles of representative genes related to high yield, including up-regulation of heterotrimeric G protein β-subunit gene (RGB1) for cellular proli

APA, Harvard, Vancouver, ISO, and other styles

23

Pham, Tuan Anh, Hoang Thi Ngoc Trang, Phung Thi Thuy, and To Kim Anh. "FACTORS ENHANCING THE ACCUMULATION OF BETA-CAROTENE IN RHODOTORULA TAIWANENSIS CT1." Vietnam Journal of Science and Technology 58, no. 6A (2021): 299. http://dx.doi.org/10.15625/2525-2518/58/6a/15636.

Full text

Abstract:

β-carotene known as an antioxidant, immunostimulant, provitamin A and natural colour is a popular additive used in food, cosmetics, and animal feed. Microbial β -carotene currently attracts attention thanks to its short production time and controllable process in comparing to the plant source. This study investigates the influences of the factors that enhance the accumulation of b-carotene in yeast strain Rhodotorula taiwanensis CT1. The addition of stressors including ethanol (0.2%), hydrogen peroxide (10mM) and NaCl (1M) to the 48h CT1 cultures improved the intracellular b-carotene to 2.2; 2

APA, Harvard, Vancouver, ISO, and other styles

24

Donzé, Frédéric-Victor, Laurent Truche, Parisa Shekari Namin, Nicolas Lefeuvre, and Elena F. Bazarkina. "Migration of Natural Hydrogen from Deep-Seated Sources in the São Francisco Basin, Brazil." Geosciences 10, no. 9 (2020): 346. http://dx.doi.org/10.3390/geosciences10090346.

Full text

Abstract:

Hydrogen gas is seeping from the sedimentary basin of São Franciso, Brazil. The seepages of H2 are accompanied by helium, whose isotopes reveal a strong crustal signature. Geophysical data indicates that this intra-cratonic basin is characterized by (i) a relatively high geothermal gradient, (ii) deep faults delineating a horst and graben structure and affecting the entire sedimentary sequence, (iii) archean to paleoproterozoïc basements enriched in radiogenic elements and displaying mafic and ultramafic units, and (iv) a possible karstic reservoir located 400 m below the surface. The high geo

APA, Harvard, Vancouver, ISO, and other styles

25

Jeong, Chang Hee, Haram Ryu, Do Hyun Kim та ін. "Piperlongumine Induces Cell Cycle Arrest via Reactive Oxygen Species Accumulation and IKKβ Suppression in Human Breast Cancer Cells". Antioxidants 8, № 11 (2019): 553. http://dx.doi.org/10.3390/antiox8110553.

Full text

Abstract:

Piperlongumine (PL), a natural product derived from long pepper (Piper longum L.), is known to exhibit anticancer effects. However, the effect of PL on cell cycle-regulatory proteins in estrogen receptor (ER)-positive breast cancer cells is unclear. Therefore, we investigated whether PL can modulate the growth of ER-positive breast cancer cell line, MCF-7. We found that PL decreased MCF-7 cell proliferation and migration. Flow cytometric analysis demonstrated that PL induced G2/M phase cell cycle arrest. Moreover, PL significantly modulated the mRNA levels of cyclins B1 and D1, cyclin-dependen

APA, Harvard, Vancouver, ISO, and other styles

26

Sprehe, M., S. U. Geißen, and A. Vogelpohl. "Photochemical oxidation of iodized X-ray contrast media (XRC) in hospital wastewater." Water Science and Technology 44, no. 5 (2001): 317–23. http://dx.doi.org/10.2166/wst.2001.0315.

Full text

Abstract:

Iodized X-ray contrast media (XRC) for medical applications are responsible for the high concentration of AOX (halogenated organic compounds adsorbable on activated carbon) in hospital wastewater exceeding the legal German discharge limit. The refractory properties of these substances lead to an accumulation in the natural waterbody. The elimination of contrast media from hospital wastewater by photochemical oxidation with hydrogen peroxide was investigated. The mechanism and the kinetics of the degradation of XRC were examined. These experiments demonstrate that a complete removal of the orga

APA, Harvard, Vancouver, ISO, and other styles

27

BOYKO, Serhiy, Oleksiy KOTOV, Svyatoslav VYSHNEVSKY, Olga MELNYK, and Nadia PODHORNYH. "ANALYSIS OF THE PROSPECTS OF THE IMPLEMENTATION OF HYDROGEN ENERGY IN THE ENERGY BALANCE OF COMPANIES IN THE AVIATION INDUSTRY." Herald of Khmelnytskyi National University. Technical sciences 315, no. 6(1) (2022): 282–86. http://dx.doi.org/10.31891/2307-5732-2022-315-6-282-286.

Full text

Abstract:

Hydrogen energy technologies, such as hydrogen storage of energy from renewable sources of electricity, by storing hydrogen as a battery for autonomous and distributed generation and refueling for hydrogen transport, are actively being introduced into the transport industry of developed countries. The transport industry of Ukraine is inextricably linked with the energy industry and has its own characteristics. World experience shows that the introduction of the latest technologies in the transport sector definitely gives a number of unambiguous bonuses for further stable development. Meanwhile

APA, Harvard, Vancouver, ISO, and other styles

28

Albina, Pierre, Nadège Durban, Alexandra Bertron, Achim Albrecht, Jean-Charles Robinet, and Benjamin Erable. "Influence of Hydrogen Electron Donor, Alkaline pH, and High Nitrate Concentrations on Microbial Denitrification: A Review." International Journal of Molecular Sciences 20, no. 20 (2019): 5163. http://dx.doi.org/10.3390/ijms20205163.

Full text

Abstract:

Bacterial respiration of nitrate is a natural process of nitrate reduction, which has been industrialized to treat anthropic nitrate pollution. This process, also known as “microbial denitrification”, is widely documented from the fundamental and engineering points of view for the enhancement of the removal of nitrate in wastewater. For this purpose, experiments are generally conducted with heterotrophic microbial metabolism, neutral pH and moderate nitrate concentrations (<50 mM). The present review focuses on a different approach as it aims to understand the effects of hydrogenotrophy, al

APA, Harvard, Vancouver, ISO, and other styles

29

Zhang, Xinshuang, Yan Sun, Hao Wu, Ying Zhu, Xin Liu, and Songchong Lu. "Tobacco Transcription Factor NtWRKY70b Facilitates Leaf Senescence via Inducing ROS Accumulation and Impairing Hydrogen Sulfide Biosynthesis." International Journal of Molecular Sciences 25, no. 7 (2024): 3686. http://dx.doi.org/10.3390/ijms25073686.

Full text

Abstract:

Leaf senescence is the terminal stage of leaf development, and its initiation and progression are closely controlled by the integration of a myriad of endogenous signals and environmental stimuli. It has been documented that WRKY transcription factors (TFs) play essential roles in regulating leaf senescence, yet the molecular mechanism of WRKY-mediated leaf senescence still lacks detailed elucidation in crop plants. In this study, we cloned and identified a tobacco WRKY TF gene, designated NtWRKY70b, acting as a positive regulator of natural leaf senescence. The expression profile analysis sho

APA, Harvard, Vancouver, ISO, and other styles

30

Nozhevnikova, A. N., S. Rebak, O. R. Kotsyurbenko, S. N. Parshina, C. Holliger, and G. Lettinga. "Anaerobic production and degradation of volatile fatty acids in low temperature environments." Water Science and Technology 41, no. 12 (2000): 39–46. http://dx.doi.org/10.2166/wst.2000.0236.

Full text

Abstract:

Anaerobic conversion of organic matter leads to the intermediate formation of volatile fatty acids (VFA), primarily butyrate, propionate and acetate. The present investigation examined methanogenesis from the VFA by microbial populations associated with natural and man-made cold habitats. Sites that were investigated included lake sediments, tundra wetland soil, sludge lagoons, manure store and anaerobic reactors operated at 3–9°C. Sharp increases in methanogenesis from VFA were observed as incubation temperatures were increased to 30°C. Low temperatures resulted in significant methane product

APA, Harvard, Vancouver, ISO, and other styles

31

Wang, Jing, Meixia Chen, Sixin Wang, Xu Chu, and Haifeng Ji. "Identification of Phytogenic Compounds with Antioxidant Action That Protect Porcine Intestinal Epithelial Cells from Hydrogen Peroxide Induced Oxidative Damage." Antioxidants 11, no. 11 (2022): 2134. http://dx.doi.org/10.3390/antiox11112134.

Full text

Abstract:

Oxidative stress contributes to intestinal dysfunction. Plant extracts can have antioxidant action; however, the specific phytogenic active ingredients and their potential mechanisms are not well known. We screened 845 phytogenic compounds using a porcine epithelial cell (IPEC-J2) oxidative stress model to identify oxidative-stress-alleviating compounds. Calycosin and deoxyshikonin were evaluated for their ability to alleviate H2O2-induced oxidative stress by measuring their effects on malondialdehyde (MDA) accumulation, reactive oxygen species (ROS) generation, apoptosis, mitochondrial membra

APA, Harvard, Vancouver, ISO, and other styles

32

Smaglichenko, T. A. "The natural barrier to retention of the high concentration of gases: methane and carbon dioxide, methane and hydrogen under hydrothermal vents." Actual Problems of Oil and Gas, no. 27 (December 25, 2019): 11. http://dx.doi.org/10.29222/ipng.2078-5712.2019-27.art11.

Full text

Abstract:

The assumed seismic model of the area around fields having high concentrations of CH4 and CO2, CH4 and H2 dissolved in hydrothermal vents is first introduced. The model of so-called natural barrier to retention of gases accumulation has been revealed using outcomes of 3D seismic tomography method, which has been developed by the author and utilizing geochemical data that were earlier obtained by other researchers in scientific cruises and university laboratories. The built model is in agreement with a distribution of seismicity (M 2.5–4.5) that occurred during last 5 years. A comparison of dif

APA, Harvard, Vancouver, ISO, and other styles

33

Guo, Zhang, Zhao, Tang, and Liu. "Accumulation Conditions and an Analysis of the Origins of Natural Gas in the Lower Silurian Shiniulan Formation from Well Anye 1, Northern Guizhou Province." Energies 12, no. 21 (2019): 4087. http://dx.doi.org/10.3390/en12214087.

Full text

Abstract:

The origin of natural gas and the mechanisms that lead to gas accumulation in the marine calcareous mudstone of the Lower Silurian Shiniulan Formation in northern Guizhou province are special and complicated. According to a combination of qualitative and quantitative methods, including the reconstruction of hydrocarbon generative potential and gas content’s measurement, in the context of some geochemistry information—the origins of the natural gas of Shiniulan Formation is suggested to be mixed gas. Furthermore, the accumulation of the natural gas can be proposed combined with some geological

APA, Harvard, Vancouver, ISO, and other styles

34

Gohari, Gholamreza, Sanaz Molaei, Azizollah Kheiry, et al. "Exogenous Application of Proline and L-Cysteine Alleviates Internal Browning and Maintains Eating Quality of Cold Stored Flat ‘Maleki’ Peach Fruits." Horticulturae 7, no. 11 (2021): 469. http://dx.doi.org/10.3390/horticulturae7110469.

Full text

Abstract:

The postharvest life of flat peach fruit is limited by the appearance of chilling injury symptoms, especially internal browning. In this study, impacts of the exogenous application of proline (0, 5, 10, and 15 mM) and L-cysteine (0, 0.2, 0.4 and 0.6%) on attenuating chilling injury of flat peach fruit were evaluated all over the cold storage. The results demonstrated that the fruits treated with 15 mM proline and 0.4 % L-cysteine showed lower levels of internal browning and these treatments prevented the excess enhancement of total soluble solids (TSS), the decline of titratable acidity (TA) c

APA, Harvard, Vancouver, ISO, and other styles

35

Carpéné, Christian, Pénélope Viana, Zsuzsa Iffiú-Soltesz, et al. "Effects of Chemical Structures Interacting with Amine Oxidases on Glucose, Lipid and Hydrogen Peroxide Handling by Human Adipocytes." Molecules 27, no. 19 (2022): 6224. http://dx.doi.org/10.3390/molecules27196224.

Full text

Abstract:

Benzylamine is a natural molecule present in food and edible plants, capable of activating hexose uptake and inhibiting lipolysis in human fat cells. These effects are dependent on its oxidation by amine oxidases present in adipocytes, and on the subsequent hydrogen peroxide production, known to exhibit insulin-like actions. Virtually, other substrates interacting with such hydrogen peroxide-releasing enzymes potentially can modulate lipid accumulation in adipose tissue. Inhibition of such enzymes has also been reported to influence lipid deposition. We have therefore studied in human adipocyt

APA, Harvard, Vancouver, ISO, and other styles

36

Yakovlev, Yu A., V. A. Polyanskiy, Yu S. Sedova, and A. K. Belyaev. "Models of hydrogen influence on the mechanical properties of metals and alloys." PNRPU Mechanics Bulletin, no. 3 (December 15, 2020): 136–60. http://dx.doi.org/10.15593/perm.mech/2020.3.13.

Full text

Abstract:

The article yields a survey of the key models of mechanics that are used to describe the effects of hydrogen embrittlement, hydrogen cracking, and hydrogen-induced destruction. The main attention is paid to models which are used to calculate the stress-strain state of metal samples, parts and machine components and have the potential for specific engineering applications. From a mechanical perspective, the effect of hydrogen on the material properties is a classic problem of the influence of a small parameter, since the hydrogen concentrations critical for the strength and ductility of metals

APA, Harvard, Vancouver, ISO, and other styles

37

Wang, Zhe, and Mingde Hao. "Effects of Spent Drilling Fluids from Natural Gas Fields on Seed Germination and Root Development of Maize (Zea mays L.)." Sustainability 13, no. 3 (2021): 1510. http://dx.doi.org/10.3390/su13031510.

Full text

Abstract:

The use of drilling waste for land reclamation is a cost-effective way to improve soil fertility and to decrease landfills. However, the potential phytotoxic and cytotoxic effects of this waste on crops have not been investigated in detail. Here, we evaluated the toxicity of spent drilling fluids (SDFs) from a natural gas field using the non-target plant Zea mays L. (maize). Four different concentrations of SDFs (2%, 4%, 6%, and 8%, w/w) were used to test the toxic effects in two soils (aeolian and loessal). Different endpoints, including germination, root elongation, reactive oxygen species (

APA, Harvard, Vancouver, ISO, and other styles

38

Hovorukha, Vira, Oleksandr Tashyrev, Olesia Havryliuk, and Larysa Iastremska. "High Efficiency of Food Waste Fermentation and Biohydrogen Production in Experimental-industrial Anaerobic Batch Reactor." Open Agriculture Journal 14, no. 1 (2020): 174–86. http://dx.doi.org/10.2174/1874331502014010174.

Full text

Abstract:

Background: Multicomponent organic waste is a significant environment hazard. Natural mechanisms can no longer ensure the processing of increasing volumes of such waste. The accumulation of multicomponent organic waste to environment pollution with toxic gases and leachate. Therefore, there is an urgent need to develop cost-effective technologies for the rapid treatment of huge volumes of toxic waste. Moreover, multicomponent organic waste can be used as the substrate for the production of green energy - biohydrogen. Objective: To scale up the technology of biohydrogen production from multicom

APA, Harvard, Vancouver, ISO, and other styles

39

Candelaresi, Daniele, and Giuseppe Spazzafumo. "Production of Substitute Natural Gas Integrated with Allam Cycle for Power Generation." Energies 16, no. 5 (2023): 2162. http://dx.doi.org/10.3390/en16052162.

Full text

Abstract:

The accumulation of energy from non-programmable renewable sources is a crucial aspect for the energy transition. Using surplus electricity from renewable energy sources, power-to-gas plants allow to produce a substitute natural gas (SNG) that can be injected in the existing infrastructure for large-scale and long-term energy storage, contributing to gas grid decarbonisation. The plant layout, the method used for carbon dioxide capture and the possible cogeneration of electricity can increase the efficiency and convenience of SNG synthesis plants. In this work, a system for the simultaneous pr

APA, Harvard, Vancouver, ISO, and other styles

40

Wu, Xiaoqi, Chunhua Ni, Quanyou Liu, Guangxiang Liu, Jianhui Zhu, and Yingbin Chen. "Genetic Types and Source of the Upper Paleozoic Tight Gas in the Hangjinqi Area, Northern Ordos Basin, China." Geofluids 2017 (2017): 1–14. http://dx.doi.org/10.1155/2017/4596273.

Full text

Abstract:

The molecular and stable isotopic compositions of the Upper Paleozoic tight gas in the Hangjinqi area in northern Ordos Basin were investigated to study the geochemical characteristics. The tight gas is mainly wet with the dryness coefficient (C1/C1–5) of 0.853–0.951, andδ13C1andδ2H-C1values are ranging from-36.2‰to-32.0‰and from-199‰to-174‰, respectively, with generally positive carbon and hydrogen isotopic series. Identification of gas origin indicates that tight gas is mainly coal-type gas, and it has been affected by mixing of oil-type gas in the wells from the Shilijiahan and Gongkahan zo

APA, Harvard, Vancouver, ISO, and other styles

41

Fukuhara, Kiyoshi, Ikuo Nakanishi, Kohei Imai, Mirei Mizuno, Ken-ichiro Matsumoto, and Akiko Ohno. "DTPA-Bound Planar Catechin with Potent Antioxidant Activity Triggered by Fe3+ Coordination." Antioxidants 12, no. 2 (2023): 225. http://dx.doi.org/10.3390/antiox12020225.

Full text

Abstract:

In diseases related to oxidative stress, accumulation of metal ions at the site of pathogenesis results in the generation of reactive oxygen species (ROS) through the reductive activation of oxygen molecules catalyzed by the metal ions. If these metals can be removed and the generated ROS can be strongly scavenged, such diseases can be prevented and treated. Planar catechins exhibit stronger radical scavenging activity than natural catechins and can efficiently scavenge hydroxyl radicals generated by the Fenton reaction without showing pro-oxidant effects, even in the presence of iron ions. He

APA, Harvard, Vancouver, ISO, and other styles

42

Zhou, Yu, Yanming Han, Gaiyun Li, and Fuxiang Chu. "Effects of Lignin-Based Hollow Nanoparticle Structure on the Loading and Release Behavior of Doxorubicin." Materials 12, no. 10 (2019): 1694. http://dx.doi.org/10.3390/ma12101694.

Full text

Abstract:

Because of their exceptional absorption capacity, biodegradability, and nontoxicity, nanomaterials fabricated from renewable natural resources have recently become an increasingly important research area. However, the mechanism of drug encapsulation by lignin nanoparticles and the role of nanoparticle structure on the stability and loading performance still remain unknown. Herein, lignin hollow nanoparticles (LHNPs) were prepared and applied as promising vehicles for the antineoplastic antibiotic drug doxorubicin hydrochloride (DOX). The hydrogen bonding and π−π interactions contributed to the

APA, Harvard, Vancouver, ISO, and other styles

43

Subbotina, Yu M., E. I. Pavlova, M. I. Shopinskaya, A. M. Abdullaeva, and A. D. Kudryavtseva. "NATURAL BIOLOGICAL METHODS OF CLEANING AND DESINFECTION OF WASTE WATER AT THE FERGANA POULTRY FARM." Problems of Veterinary Sanitation, Hygiene and Ecology 1, no. 4 (2020): 494. http://dx.doi.org/10.36871/vet.san.hyg.ecol.202004014.

Full text

Abstract:

This article deals with the problem of wastewater treatment at the Fergana poultry farm (FPF). The results of hydrochemical and sanitary-bacteriological studies are analyzed. Treatment facilities were built at the Fergana poultry farm and put on balance, which included the following objects: a grate crusher, horizontal sand traps, 2-tier settlers, biological oxidation and stabilization ponds (otherwise known as BOX ponds). After the accumulation of ten daily volumes of waste water in the BOX ponds, they were transferred to the contact mode of operation, with the introduction of an adapted micr

APA, Harvard, Vancouver, ISO, and other styles

44

Upmacis, Rita K. "Atherosclerosis: A Link between Lipid Intake and Protein Tyrosine Nitration." Lipid Insights 2 (January 2008): LPI.S1030. http://dx.doi.org/10.4137/lpi.s1030.

Full text

Abstract:

Atherosclerosis, a disease characterized by plaque formation in the arterial wall that can lead to heart attack and stroke, is a principal cause of death in the world. Since the 1990's, protein nitrotyrosine formation has been known to occur in the atherosclerotic plaque. This potentially damaging reaction occurs as a result of tyrosine modification by reactive nitrogen species, such as nitrogen dioxide radical, which forms upon peroxynitrite decomposition or nitrite oxidation by hydrogen peroxide-activated peroxidase enzymes. The presence of protein-bound nitrotyrosine can be considered an in

APA, Harvard, Vancouver, ISO, and other styles

45

Nkomo, Gokul, Keyster, and Klein. "Exogenous p-Coumaric Acid Improves Salvia hispanica L. Seedling Shoot Growth." Plants 8, no. 12 (2019): 546. http://dx.doi.org/10.3390/plants8120546.

Full text

Abstract:

: p-Coumaric acid (p-CA) belongs to a family of natural esters of hydroxycinnamic acid compounds that have been shown to modulate plant growth and metabolism. In this study, we investigated the effect of exogenous p-CA on plant growth, reactive oxygen species (ROS)-induced oxidative damage, photosynthetic metabolism, osmolyte content and changes in superoxide dismutase (SOD) enzymatic activity. Exogenous p-CA improved Salvia hispanica (chia) growth by significantly enhancing shoot length, fresh and dry weights coupled with augmented levels of total chlorophyll and carotenoid contents. Furtherm

APA, Harvard, Vancouver, ISO, and other styles

46

VOROBEL, Mariia, Oleh KLYM, Vasyl KAPLINSKYI, et al. "REDUCING OF AMMONIA AND HYDROGEN SULFIDE EMISSION FROM CHICKEN LITTER BY THE USE OF INORGANIC AND BIOLOGICALLY ACTIVE SUBSTANCES." AgroLife Scientific Journal 12, no. 2 (2023): 229–36. http://dx.doi.org/10.17930/agl2023229.

Full text

Abstract:

The accumulation of chicken litter, due to the excessive emission of gaseous air pollutants, causes a significant load on the environment. Therefore, the basis of research was to find out the level of NH3 and H2S emission from chicken litter by the influence of inorganic and biologically active substances. It is established that the lowest level of NH3 release from litter - by 25.5-32.6% and H2S by 19.7-24.4% is observed with the introduction of a complex preparation for deactivation of enzymatic processes in chicken litter. Of the studied natural sorbents, the best results for reducing NH3 an

APA, Harvard, Vancouver, ISO, and other styles

47

Kalaiyarasi, D., V. Manobharathi, and S. Mirunalini. "Capsaicin in hot chili peppers as a potent free radical scavenger: An in vitro approach." Research Journal of Biotechnology 17, no. 4 (2022): 68–75. http://dx.doi.org/10.25303/1704rjbt6875.

Full text

Abstract:

In humans, countless chronic conditions are connected with the accumulation of free radicals. Antioxidants can scavenge free radicals and reduce their effect. The hunt for natural antioxidants of plant provenance becomes an urgent primary concern. So, the present study was to investigate the antioxidant and free radical scavenging activity of Capsaicin by using various in vitro assays such as 1,1-diphenyl-2-picrylhydrazyl free radical (DPPH), 2,2′-azino-bis(3- ethylbenzthiazoline-6-sulfonic acid) (ABTS●+), hydroxyl radical, superoxide anion, hydrogen peroxide, nitric oxide and reducing power.

APA, Harvard, Vancouver, ISO, and other styles

48

Xu, Zhengjian, Biao Peng, Yanjun Feng, et al. "Characteristics and Origins of the Natural Gas and Implications for Gas-Source Correlation in Deep Formations of the Songliao Basin, NE China." Energies 12, no. 24 (2019): 4641. http://dx.doi.org/10.3390/en12244641.

Full text

Abstract:

The Songliao Basin is the most productive petroliferous lacustrine basin in NE China, and numerous large gas fields with large proven reserves occur in its deep formations. However, considerable challenges remain: (1) the origins and genetic types of the natural gases are controversial; (2) the gas-source correlations are poorly studied; and (3) the migration distance is vague. In this study, these problems are addressed by the study of the gas compositions, light hydrocarbons, and stable hydrogen and carbon isotopes. The gases are predominantly of organic and thermogenic origins. The Huoshili

APA, Harvard, Vancouver, ISO, and other styles

49

Bryukhanov, A. L., and T. V. Khijniak. "Application of Sulfate-reducing Bacteria in Bioremediation from Heavy Metals and Metalloids (Review)." Прикладная биохимия и микробиология 59, no. 2 (2023): 133–49. http://dx.doi.org/10.31857/s0555109923020034.

Full text

Abstract:

Pollution of the environment with heavy metals, metalloids and radionuclides is a global problem that seriously affects the state of the biosphere. In particular, chromium compounds have a toxic, mutagenic and carcinogenic effect. The main principle of purification of anthropogenic and natural ecosystems from chromates is the reduction of Cr(VI) to Cr(III), the salts of which are significantly less toxic and insoluble. However, currently used electrochemical and ion-exchange cleaning methods are quite expensive and require the use of special reagents. At the same time, sulfate-reducing bacteri

APA, Harvard, Vancouver, ISO, and other styles

50

Fasih, Majid, and Reza Tavakkol Afshari. "The morphophysiological dormancy of Ferula ovina seeds is alleviated by low temperature and hydrogen peroxide." Seed Science Research 28, no. 1 (2018): 52–62. http://dx.doi.org/10.1017/s0960258517000356.

Full text

Abstract:

AbstractFerula ovina is a perennial Apiaceae with great medicinal and economic value. This study was conducted to better understand the dormancy and germination behaviour of its seeds. Experiments included temperature requirements for both embryo growth and germination under field and laboratory conditions, the effects of warm stratification, gibberellic acid (GA3), dry after-ripening, exogenous hydrogen peroxide (H2O2) and diphenyleneiodonium (DPI) on dormancy, localizing the accumulation of superoxide (O2−) and measuring endogenous contents of H2O2 in embryos during cold and warm stratificat

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!