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78 articles for “bubble”
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Hydrogen and oxygen generation by Photoelectrolysis and Special Constructed Photoelectrolyzer Powered by Light Energy for Hydrogen Electric Vehicle Charging
Abstract: Today, pure hydrogen is produced by various industrial methods, including: steam reforming of methane and natural gas; coal gasification; biotechnology; electrolysis of water, etc. The most effective method for obtaining pure hydrogen is the use of photoelectrolysis of an aqueous solution of an electrolyte, flowing in a photoelectrochemical cell. In this method, the hydrogen in the photoelectrochemical cell is produced directly from solar energy. In a photoelectrochemical cell, a silicon …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 14, Issue 1, 2024 · pp. 38–46 Read article
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Sonochemical Methods to Prepare Composes
Abstract: This purview is to link major and minor chemical reactions. Subjective has various unknown chemical reactivity those have announced by ultrasound. Cavity generation followed by implosive collapse have secreted chemistry to some extent so as pervert to scheme as well. Applicability of ultrasound has studied over chemical stimulus, scrubbing atomizer, crystallization, emulsification, dissolution, dispersion, defoaming, degassing, floatation, homogenization etc. Synthetic catalytic routes has subscriptive issued ultrasonic reverberation to regain some …
Published in Journal of Catalyst & Catalysis · Vol. 8, Issue 2, 2021 · pp. 1–7 Read article
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A new method of phytoplankton concentration as a cycle of solving environmental problems and obtaining energy from high-quality biofuel (lipid oil)
Abstract: The stagnant zones of fresh lakes, formed due to increased reproduction of phytoplankton in stagnant water under the influence of the sun, pose a serious threat to the environment, leading to the death of phytoplankton and fish, releasing hydrogen sulfide and making the water unsuitable even for agricultural use. In this regard, the development of a method for concentrating phytoplankton from "green water" becomes an urgent task associated not only …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 12, Issue 2, 2022 · pp. 55–61 Read article
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Chlorella lipid oil for biofuel production obtained by a new method of high quality concentration of Chlorella
Abstract: Chlorella concentrates are unique due to the large amount of high-quality lipid oil produced from them, which is a high-quality biofuel. The production of high quality lipid oil requires the production of Chlorella concentrates with low water content (as a foam product). Existing methods of centrifugation or microfiltration for the concentration of chlorella are expensive andineffective. The article presents a new developed method for obtaining high-quality lipid oil, in which …
Published in Journal of Petroleum Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 10–14 Read article
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Lymph Purification for Liver Cirrhosis Patients’ Treatment
Abstract: The existing methods of lymph purification do not permit to clean the organism of patient with liver cirrhosis from an increased concentration of toxic substances contained in his lymph. In addition, the process of cleaning of the lymph in these methods takes a long time, during which the patient remains without lymph, waiting for clean lymph that sharply weakens him and in extraordinary cases can lead to death. The presence …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 9, Issue 1, 2020 · pp. 11–17 Read article
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Method of Obtaining of Concentrate of Rapidly Reproducing Microalga for Converting of the Emitted Carbon Dioxide into Oxygen and Food Biomass for Feeding of the Crew of an International Space Station during Long Flights
Abstract: It is known that the use of microalga solves the problem of utilizing carbonic acid formed during the life of astronauts and replenishing oxygen in the spacecraft atmosphere. There is evidence that among the mass of microalga used for research as oxygen products for space flights, chlorella and spirulina are suitable. In the field of creating a life support system (LSS) of the International Space Station (ISS), research is being …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 10, Issue 2, 2021 · pp. 37–48 Read article
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New Advanced Life Support System (LSS) for long-duration missions on the International Space Station (ISS) and Interplanetary Spacecraft
Abstract: Oxygen in the air and the water are vital for the smooth operation of the crews of the International Space Station and interplanetary spacecraft during long-term flights. Replenishing by the water, oxygen and micro algae biomass by delivering them to the International Space Station or to the interplanetary spacecraft is not economically viable. Therefore, the task arises of using and developing new systems that use the regeneration of oxygen, hydrogen, …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 10, Issue 3, 2021 · pp. 28–45 Read article
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A New Developed Photoelectrochemical Cell for Hydrogen Generation
Abstract: There are many methods for the industrial production of hydrogen, including: steam reforming of methane and natural gas; coal gasification; biotechnology; electrolysis of water, etc. The most effective method of obtaining of pure hydrogen is the use of photoelectrochemical cell. Photoelectrochemical cells produces hydrogen directly from solar energy. In a photoelectrochemical cell, a silicon semiconductor with an anode attached to it, immersed in an aqueous electrolyte solution and excited by …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 1, Issue 1, 2023 · pp. 01–10 Read article
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Enhancing Patient Safety: Advanced Saline Monitoring Systems for Medical Precision
Abstract: As the world population is increasing, the need of health prevention is also increasing day by day. Hence, it is mandatory for everyone in this world to take care of their health properly. In these recent years, there has been rapid progress in medical care due to the technological advancements in the various fields of sensors, microcontrollers, and computers for ensuring fast recovery of patients in the hospitals. The bottle …
Published in Trends in Electrical Engineering · Vol. 14, Issue 3, 2024 · pp. 26–32 Read article
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Accuracy Improvement for Propeller Cavitation Noise Prediction Using UDF
Abstract: Recently, there has been an increase in demand for propulsion systems with higher hydrodynamic performance and lower underwater-radiated noise, as environmental issues are gaining more attention in addition to the traditional military necessity. It is important to reduce cavitation noise when designing propellers of the ships, especially for oceanographic research vessels because they use acoustic instruments and cavitation noise can interfere with their operation. It is well known that, when …
Published in Journal of Experimental & Applied Mechanics · Vol. 16, Issue 2, 2025 · pp. 18–26 Read article
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The Developed System of Continuous Utilization of Carbon Dioxide, Enrichment of the Atmosphere with Oxygen and Production of Biofuel Using the Resulting Concentrate of Rapidly Multiplying Microalgae
Abstract: It is known that microorganisms, such as microalgae, during photosynthesis utilize carbon dioxide and enrich the atmosphere with oxygen. Microalgae, on the other hand, can be converted into biofuels by extracting fatty acids from macromolecules known as lipids. Recovery of this fatty acid traditionally requires the removal of most of the water from the microalgae resulting in biomass slurry. The method developed earlier permitted to obtain a high-quality concentrate of …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 13, Issue 2, 2022 · pp. 10–20 Read article
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Mechanical Properties of Aerated Concrete
Abstract: Nowadays it is very important to make the concrete economical. Aerated concrete is ordinary concrete that contains controlled amounts of air in the form of microscopic bubbles and having low density as compare to conventional concrete. These intentionally entrained air bubbles are extremely small. By using Air Entraining Agent (AEA), cement, coarse aggregate, fine aggregate and water we create aerated concrete. The experiment is perform on aerated concrete which is …
Published in Journal of Construction Engineering, Technology & Management · Vol. 8, Issue 3, 2018 · pp. 20–29 Read article
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Natural Convection Agricultural Solar Dryer
Abstract: AbstractA solar air heater has been built with waste plastic bottles as a solar collector for drying agricultural crops. The lower part of each cylindrical collector (Plastic bottles of 1.2m in length and 0.07m of diameter) was black painted (30% of the surface area) and attached to greenhouse to dry the crops. The performance of the solar dryer was carried out with and without plastic bubble wrapper film on the …
Published in Recent Trends in Fluid Mechanics · Vol. 6, Issue 3, 2019 · pp. 22–27 Read article
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Dual Frequency Ultrasonic Density Measurement of Liquid: A Novel Method for Density Determination of Liquid
Abstract: Dual frequency based Ultrasonic density determination of liquid gives superior performance in terms of sensor drift, non repeatability of measurement data. Traditionally density measurement of liquid by ultrasound is done with single frequency based ultrasound which suffers drift, non repeatability. Standard reference liquid or solid is also required for density estimation using currently available ultrasound technique. In this paper Dual frequency based ultrasound technique for liquid density measurement is developed …
Published in Journal of Instrumentation Technology & Innovations · Vol. 3, Issue 2, 2013 · pp. 9–15 Read article
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Continuous Charging of Spacecraft Fuel Cells by Hydrogen and Oxygen, Obtained in a Specially Designed Separator, Powered by a Solar Panel, During Long-term Space Flight
Abstract: The flight control of the spacecraft (SC) is carried out at the expense of onboard electrical power. The onboard electric power supply of the spacecraft ensures the functioning of all its instruments and equipment (propulsion system, controls, communication systems, instrument complex, heating, etc.). The power supply system of a spacecraft is the most important system that ensures both the life of the spacecraft itself and the crew that controls this …
Published in Journal of Aerospace Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 44–59 Read article
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The Advanced Foam Materials Production in Microgravity using the Process of Vibroturbulization
Abstract: Recently, the task of the intensification of the existing technological processes using the intensivemixing of different environment, which are characterized by different densities (water + gas, water +solid particles + gas, water + oil so forth) is actual. The conducted studies determined that at acertain frequency and vibration acceleration of vibration, a resonant phenomenon occurs—vibroturbulization, in which the above of the fluid surface air in a vibrating vessel with fluid …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 12, Issue 1, 2021 · pp. 34–47 Read article
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Pharmacological Modeling of New Form of Anti-tumorigenic Medicines in Chemotherapy
Abstract: The existing methods of chemotherapeutic treatment do not permit to calculate the precise dose of medicine and the time of its action on the tumor that leads to unpredictability of result, and, therefore, to the ineffectiveness of the use of treatment itself. Furthermore, the damage of normal cells on chemotherapy becomes the reason for a whole series of complications, connected with side-effects action of chemotherapy. The paper presents the pharmacological …
Published in Trends in Drug Delivery · Vol. 6, Issue 1, 2019 · pp. 31–36 Read article
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Evaluation of Chemical Application as Pilot to Improve Oil Production from High Viscous Oil in Sandstone Reservoir
Abstract: Chemical injection stimulation is one of worldwide proven technologies for viscosity reduction and mobility enhancement. The principle mechanism is to reduce heavy oil viscosity by injecting of active chemical agent solution into reservoir as huff and buff practice, the agent solution is act at near wellbore area by remove plugging of heavy organic material, Energy support due to large quantity of stimulation liquid being injected into the formation, viscosity reduction …
Published in Journal of Petroleum Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 16–23 Read article
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A Review on Medicinal Properties of Chickpea and Its Profile
Abstract: Cicer arietinum is the most well-known vegetable and seen everywhere in the world, particularly in Afro-Asian nations. It has a place with family Fabaceae and appropriated in tropical, sub-tropical and calm districts. It is an annual crop with 20–100 cm tallness and the stems are spread, erect while root framework is vigorous and leaves are made of 11–15 individual handouts which are oval fit as a fiddle. The blossoms are …
Published in Research and Reviews : Journal of Crop science and Technology · pp. 1–11 Read article
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Exploring Emerging Water Disinfection Technologies: A focus on Hydrodynamic Cavitation
Abstract: Availability of clean drinking water is an ongoing global demand. Contaminated water sources, inappropriate waste disposal, and inadequate hygiene procedures exacerbate it. These elements support the growth of pathogenic microbes like bacteria, viruses, and parasites, which cause a variety of diseases that are transmitted by water. Disinfection plays a vital role in water treatment processes by eliminating these pathogens and ensuring public health safety. Commonly used methods like Chlorination, Ozonation, …
Published in Journal of Water Pollution & Purification Research · Vol. 11, Issue 1, 2024 · pp. 44–53 Read article