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  • A Review on Macroscale and Microscale Cell Lysis

    2017-3-8 · Detergents are most widely used for lysing mammalian cells. For lysing bacterial cells, first the cell wall has to be broken down in order to access the cell membrane. Detergents are often used along with lysozymes for lysing bacteria (e.g., yeast). Table 2 lists all the detergents according to their charge and properties. Out of the three ...

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  • Loss of integrity of hydrogen technologies: A critical ...

    2020-9-3 · This is a well-known phenomenon for Liquefied Natural Gas (LNG) and liquid nitrogen (LIN). In the past, few accidents occurred when the LNG was spilled onto water [ 151 ]. The heat transfer between the water and the cryogenic fluid can leads to a violent expansion of the LNG due to the sudden phase change if certain conditions are met such as a well mixing between the two fluids [ 152 ].

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  • Monitoring and Control Systems in Agriculture Using ...

    They used analog and digital sensors for monitoring temperature, nutrient atomization, EC, and pH fluctuations and level of nutrient solution in the nutrient reservoir. In order to acquire data and automation system, the two Arduinos were managed in a master-slave configuration and connected to each other through wireless by Wi-Fi.

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  • Achieving energy neutrality in wastewater treatment

    2018-10-5 · Wastewater treatment plants (WWTPs) consume high amounts of energy which is mostly purchased from the grid. During the past years, many ongoing measures have taken place to analyze the possible solutions for both reducing the energy consumption and increasing the renewable energy production in the plants. This review contains all possible aspects which may assist to move towards …

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  • Energy requirements for water production, treatment,

    2012-9-1 · Secondary treatment processes include aeration, stabilization, suspended growth or fixed film processes, clarification, and membrane bioreactor processes. Secondary processes only remove 20–30% of nitrogen from the wastewaters. Higher nitrogen and phosphorus removal can be met by use of tertiary processes such as nitrification–denitrification.

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  • Overview of current development in electrical energy ...

    2015-1-1 · Cryogenic energy storage employs a cryogen (such as liquid nitrogen or liquid air) to achieve the electrical and thermal energy conversion. For instance, Liquid Air Energy Storage (LAES) is attracting attention due to the high expansion ratio from the liquid state to the gaseous state and the high power densities of liquid air compared to that of gaseous state of air.

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  • Hydrogen fuel and fuel cell technology for cleaner

    2021-2-4 · One of the main problems facing our planetary bodies is unexpected and sudden climate change due to continuously increasing global energy demand, which currently is being met by fossil fuels. Hydrogen is considered as one of the major energy solutions of the twenty-first century, capable of meeting future energy needs. Being 61a zero-emission fuel, it could reduce environmental impacts …

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  • On the verge of the market – Plant factories for the ...

    2021-1-1 · If tanks are used for infiltration, they should be designed to facilitate re-adjustment of the bacterial suspension, again to ensure homogeneity (Holtz et al., 2015), and also to minimize the suspension volume required, thus reducing the investment costs and consumption of reagents in the preceding cultivation steps (Spiegel et al., 2019). Infiltration devices must also be safely contained …

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  • Liquid air energy storage systems: A review -

    1 天前 · ORCs are a subset of Rankine cycles, with the condition that the working fluid used is an organic compound. The baseline ORC simply consists of two heat exchangers – an evaporator and a condenser – a pump, and an expansion turbine. The process works by first pumping the liquid phase organic working fluid to high pressure.

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  • Chunming XU | China University of Petroleum - Beijing ...

    Chunming Xu. The fluid catalytic cracking (FCC) naphtha critical component‐oriented separation process is an efficient method to produce ultra‐low‐sulfur (<10 μg/g) gasoline with minimal ...

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  • Monitoring and Control Systems in Agriculture Using ...

    In recent years, intelligent sensor techniques have achieved significant attention in agriculture. It is applied in agriculture to plan the several activities and missions properly by utilising limited resources with minor human interference. Currently, plant cultivation using new agriculture methods is very popular among the growers. However, the aeroponics is one of the methods of modern ...

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  • IOP Conference Series: Materials Science and

    Slush nitrogen is a cryogenic two-phase fluid with solid nitrogen particles suspended in liquid nitrogen, which can be a potential coolant for high temperature superconductor thanks to its high density and large heat capacity. The present work focuses on the pool boiling heat transfer characteristics of slush nitrogen.

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  • Oil and Gas Production Wastewater: Soil

    During oil and natural gas production, so-called “produced water” comprises the largest byproduct stream. In addition, many oil and gas operations are augmented via injection of hydraulic fracturing (HF) fluids into the formation. Both produced water and HF fluids may contain hundreds of individual chemicals, some known to be detrimental to public health and the environment.

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  • Flexible Carbon Capture and Utilization technologies

    2019-10-1 · Chemical industry. There are two common pathways for CO 2 utilization in chemical industry. Due to its inert properties, CO 2 could be used as an efficient extractor and solvent , or could be directly used for various purposes as been discussed in section 4.1.1. 5.1.1.

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  • Hydrogen fuel and fuel cell technology for cleaner

    2021-2-4 · One of the main problems facing our planetary bodies is unexpected and sudden climate change due to continuously increasing global energy demand, which currently is being met by fossil fuels. Hydrogen is considered as one of the major energy solutions of the twenty-first century, capable of meeting future energy needs. Being 61a zero-emission fuel, it could reduce environmental impacts …

    Get Price
  • Liquid air energy storage (LAES): A review on

    Liquid TES solutions have also been proposed in the literature for cold recycle. Given no suitable fluid is liquid across the entire span from 0 to -196°C, two fluids were proposed for cold storage over increasing temperatures, such as propane (R290) and methanol [39,58], or R218 and methanol .

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  • On the verge of the market – Plant factories for the ...

    2021-1-1 · If tanks are used for infiltration, they should be designed to facilitate re-adjustment of the bacterial suspension, again to ensure homogeneity (Holtz et al., 2015), and also to minimize the suspension volume required, thus reducing the investment costs and consumption of reagents in the preceding cultivation steps (Spiegel et al., 2019 ...

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  • ESSD - The Global Methane Budget 2000–2017

    2020-7-15 · Data provided by the GAINS inventory suggest that this approach may overestimate biofuel emissions by between 5 % and 50 %. In our study, biofuel burning is estimated to contribute 12 Tg CH4 yr −1 [10–14] to the global methane budget, about 3 % …

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  • Sci-Hub: removing barriers in the way of science

    The Sci-Hub project supports Open Access movement in science. Research should be published in open access, i.e. be free to read. The Open Access is a new and advanced form of scientific communication, which is going to replace outdated subscription models.

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  • Jacobs School News Item | Jacobs School of Engineering

    The device is a thin, flexible strip that can be wrapped around the fingertip like a Band-Aid. A padding of carbon foam electrodes absorbs sweat and converts it into electrical energy. The electrodes are equipped with enzymes that trigger chemical reactions between lactate and oxygen molecules in …

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  • Monitoring and Control Systems in Agriculture Using ...

    In recent years, intelligent sensor techniques have achieved significant attention in agriculture. It is applied in agriculture to plan the several activities and missions properly by utilising limited resources with minor human interference. Currently, plant cultivation using new agriculture methods is very popular among the growers. However, the aeroponics is one of the methods of modern ...

    Get Price
  • Annotated Bibliography: Asia and the Pacific

    2021-2-17 · The chemical composition of animal wastes and organic compost produced by Chinese methods are summarized and published information on rates of application to fish ponds is discussed. The design of integrated animal-fish units and the formulation of animal feeds are identified as key factors in farm productivity and profitability.

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  • Discharges to surface water and groundwater:

    2016-2-1 · Multiply the result by 30 metres. This will give you a result in metres. Example A discharge of 1.2 cubic metres divided by 0.75 gives 1.6, which multiplied by 30 gives a result of 48 metres. So ...

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  • Getting to the roots of aeroponic indoor farming ...

    2020-6-24 · Introduction. A period of rapid development in agricultural technology is underway, with precision dosing, machine learning, process automation, robotics, gene editing, and indoor farming paving the way for a revolution in agricultural productivity (Rose & Chilvers, 2018; Klerkx & Rose, 2020).Indoor farming has expanded quickly within the horticultural sector due to yield consistency and ...

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  • IOP Conference Series: Earth and Environmental

    After successfully held for five times, the 2020 6th International Conference on Energy Materials and Environment Engineering (ICEMEE 2020) was held on April 24-26 via online platform due to the pandemic of COVID-19. ICEMEE 2020 was organized by AEIC Academic Exchange Information Centre and supported by Tainjin Academy of Environmental Science ...

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  • IOP Conference Series: Earth and Environmental

    2019-10-28 · The 2019 International Conference on Advances in Civil and Ecological Engineering Research (ACEER 2019) was held successfully in Kaohsiung City, Taiwan, from July 1 st - 4 th, 2019. It was organized by I-Shou University, co-organized by National Sun Yat-Sen University, National Kaohsiung University of Science and Technology, and Taiwan Society ...

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  • The Global Food‐Energy‐Water Nexus - D'Odorico -

    The maximum likelihood method, the support vector machine method and the method proposed in this paper were used to compare the two groups of data. The accuracy of the first group was 65.1%, 72.1% and 81.4%, respectively. The accuracy of the second group was 66.5%, 70.6%, and 82.2%, respectively.

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  • Ultraviolet Disinfection Guidance Manual for the Final ...

    2 The Food System. Food systems encompass the different production, distribution, and consumption activities that link people to the food they eat, as well as the system outcomes for society and the environment (e.g., Ingram, 2011; Schipanski et al., 2016).Food system activities include the use of natural resources and labor in the production, processing, and transport of food, as well as ...

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  • Jacobs School News Item | Jacobs School of Engineering

    Lignin Sulfonate - a commercially available liquid lignin mixture (typically procured from paper mills) used to adjust the UV transmittance of natural waters during validation testing. Low-pressure (LP) Lamp - a mercury-vapor lamp that operates at an internal pressure of 0.13 to 1.3 Pa (2 x 10'5to 2 x 10'4 psi) and electrical input of 0.5 watts ...

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  • IOP Conference Series: Earth and Environmental

    After successfully held for five times, the 2020 6th International Conference on Energy Materials and Environment Engineering (ICEMEE 2020) was held on April 24-26 via online platform due to the pandemic of COVID-19. ICEMEE 2020 was organized by AEIC Academic Exchange Information Centre and supported by Tainjin Academy of Environmental Science ...

    Get Price
  • Annotated Bibliography: Asia and the Pacific

    2021-2-17 · The chemical composition of animal wastes and organic compost produced by Chinese methods are summarized and published information on rates of application to fish ponds is discussed. The design of integrated animal-fish units and the formulation of animal feeds are identified as key factors in farm productivity and profitability.

    Get Price
  • IOP Conference Series: Materials Science and

    Slush nitrogen is a cryogenic two-phase fluid with solid nitrogen particles suspended in liquid nitrogen, which can be a potential coolant for high temperature superconductor thanks to its high density and large heat capacity. The present work focuses on the pool boiling heat transfer characteristics of slush nitrogen.

    Get Price
  • Monitoring Industrial Wastewater {Handbook}

    The chemical form in which nutrients are present may differ and vary with the degree of treatment. Nitrogen can be present as ammonia, nitrate, nitrite and organic nitrogen in the form of proteins, urea and amino-acids. Phosphorus can be present as ortho phosphates …

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  • BJOC - A comprehensive review of flow chemistry

    2021-5-18 · The fragrance industry. In 2018, the flavours and fragrances (F&F) market was valued 26.5 billion with an annual growth of 4.8%, this industry represents a strong economic market expected to be worth more than 38.5 billion by 2026 in the rapidly expanding global market .In general, there is an approximate equal split in sales value between the fragrance and flavour sectors with synthetic ...

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  • Nanomaterial Case Study: Nanoscale Silver in

    ----- A rrM Sonm7ntel Protection EPA/600/R-10/081F United States I Protection tra/ou August 2012 Nanomaterial Case Study: Nanoscale Silver in Disinfectant Spray August 2012 National Center for Environmental Assessment Office of Research and Development U.S. Environmental Protection Agency Research Triangle Park, NC

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  • Advancing Scientific Understanding of the Global

    1 The Role of Atmospheric CH 4 in Achieving Global Climate Targets . Methane (CH 4) is the second most important human-made (“anthropogenic”) greenhouse gas after carbon dioxide (CO 2) and accounts for at least 25% of the anthropogenic radiative forcing of warming agents since preindustrial times (including indirect effects due to atmospheric chemistry) (Etminan et al., 2016; Myhre et al ...

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  • Getting to the roots of aeroponic indoor farming ...

    2020-6-24 · Introduction. A period of rapid development in agricultural technology is underway, with precision dosing, machine learning, process automation, robotics, gene editing, and indoor farming paving the way for a revolution in agricultural productivity (Rose & Chilvers, 2018; Klerkx & Rose, 2020).Indoor farming has expanded quickly within the horticultural sector due to yield consistency and ...

    Get Price
  • Jacobs School News Item | Jacobs School of Engineering

    The device is a thin, flexible strip that can be wrapped around the fingertip like a Band-Aid. A padding of carbon foam electrodes absorbs sweat and converts it into electrical energy. The electrodes are equipped with enzymes that trigger chemical reactions between lactate and oxygen molecules in …

    Get Price
  • INTRODUCTION - The University of Arizona

    2011-4-2 · Large quantities of cichlids are landed from freshwaters of Africa in short periods and often glut the market, consequently much remain unsold and spoil as a result of poor handling and processing (Shimang 1992). These surplus unmarketable tilapias could be economically recycled for animal feeding, through dry meal rendering or ensilation.

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  • Frontiers | Biofilms in the Food Industry: Health

    1 The Role of Atmospheric CH 4 in Achieving Global Climate Targets . Methane (CH 4) is the second most important human-made (“anthropogenic”) greenhouse gas after carbon dioxide (CO 2) and accounts for at least 25% of the anthropogenic radiative forcing of warming agents since preindustrial times (including indirect effects due to atmospheric chemistry) (Etminan et al., 2016; Myhre et al ...

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  • Advancing Scientific Understanding of the Global

    2021-5-18 · The fragrance industry. In 2018, the flavours and fragrances (F&F) market was valued 26.5 billion with an annual growth of 4.8%, this industry represents a strong economic market expected to be worth more than 38.5 billion by 2026 in the rapidly expanding global market .In general, there is an approximate equal split in sales value between the fragrance and flavour sectors with synthetic ...

    Get Price
  • BJOC - A comprehensive review of flow chemistry

    This study also examines the effect of dissolved organic matter (DOM) on AD photodegradation. During spring and summer at Henderson, NV, USA (latitude 36.04°N), AD and T underwent direct photodegradation, with half-lives ranging from 3.7 to 10.8 h. In three model DOM solutions, AD’s half-life increased by 11% to 35%.

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  • The State of Food and Agriculture 2020

    While inorganic nitrogen is the likely immediate source of nutrients for the in-reservoir oil biodegradation system, petroleum contains considerable amounts of organic nitrogen. Total nitrogen content of crude oils range between 0.01 and 0.9% by weight (Ball et al., 1951).

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  • Environmental Science & Technology | Vol 47, No 15

    Your source for innovative, indispensable lab equipment, lab supplies, and services. View our wide selection of products for scientific research and education.

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  • Life in the slow lane; biogeochemistry of biodegraded ...

    2007-12-1 · Pleurotus ostreatus is an edible white-rot basidiomycete with medicinal and bioremediation properties. In this research, the activity of key intracellular anti-oxidative stress enzymes, superoxide dismutase (SOD), catalase (CAT) and peroxidase (POX), was investigated and characterized in the mushroom.A Pleurotus ostreatus homogenate was centrifuged at 3,000 g for 10 min; the supernatant …

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  • Lab Equipment and Lab Supplies | Fisher Scientific

    2011-4-2 · Large quantities of cichlids are landed from freshwaters of Africa in short periods and often glut the market, consequently much remain unsold and spoil as a result of poor handling and processing (Shimang 1992). These surplus unmarketable tilapias could be economically recycled for animal feeding, through dry meal rendering or ensilation.

    Get Price