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Get Price2021-4-21 · Practical applications and product specifications for short-path distillation. ... lactic acid, monoglycerides, flavors, heavy oils, and Separation and purification of paraffin oil. Widely used in CBD oil, essential oils, laboratories, ... Pay attention to whether the liquid nitrogen in the liquid nitrogen tank is sufficient. 6. Check if the ...
Get Price< Sponsored Listing we are manufacturer of liquid nitrogen tank, in this field for more than 15 years, set production and design. C) Neck plug is made of nontoxic plastic good adiabatic property, it has dual role to reduce the liquid nitrogen evaporation and fixed lifting cylinder. If the product is a hot-sale one and out of stock, that might ...
Get Price2021-3-1 · Currently, most of the biodiesel production uses edible oils from palm, sunflower, canola, soybean and corn [, , , ].The major drawback of using the edible feedstock is that the prices for these oil yielding crops have been increasing over past decades and these make up an important part of human diet [].In addition, when there is a consistent demand for feedstock for biodiesel production ...
Get PriceVolume 94. 2017. Previous issue Next issue. 2017 3rd International Conference on Energy, Environment and Materials Science (EEMS 2017) 28–30 July 2017, Singapore
Get PriceThe detection of glucose has important significance in clinical medicine and the food industry, especially in the diagnosis of diabetes. In recent years, electrochemical non-enzymatic glucose sensors have attracted intensive attention to detect the glucose level with great progress. In this review, we summar ChemComm Community – Dedicated Authors
Get Price2020-4-4 · It is widely used in biomedical, food industry, water treatment, green electronics, cosmetics, and other fields. Because of their linear (1,4)-β-N-acetyl glycosaminoglycan structure with two hydroxyl groups and an acetamide group, native chitins are highly crystalline with strong hydrogen bonding.
Get Price2020-8-1 · Phase change cold storage technology is a high-tech based on phase change materials. As phase change energy storage technology can effectively solve the contradiction between energy supply and demand in time and space, and effectively improve the energy utilization rate, it is increasingly becoming a research hotspot in energy utilization and material science at home and abroad.
Get Price2021-1-1 · The MP-9, MP-4 and MP503 sensors used in this study were purchased from Winsen Electronics Technology Co., Ltd (Zhengzhou, Henan). And TGS821, TGS816 and TGS2602 were purchased from Figaro Engineering Inc (Japan).
Get PriceVolume 94. 2017. Previous issue Next issue. 2017 3rd International Conference on Energy, Environment and Materials Science (EEMS 2017) 28–30 July 2017, Singapore
Get PriceVolume 647. 2021. Previous issue Next issue. 2020 6th International Conference on Advances in Energy Resources and Environment Engineering 20-22 November 2020, Chongqing, China
Get Price2018-6-15 · 1. Introduction. Nowadays, with the rapid growths in world population and economy, the world energy demand and consumption have increased enormously which led to a wide variety of harsh environmental impacts .Higher usage of conventional fossil fuels is the main underlying cause of global warming and immense damage to environment due to the greenhouse and harmful pollutants emitted …
Get Price2020-8-1 · Phase change cold storage technology is a high-tech based on phase change materials. As phase change energy storage technology can effectively solve the contradiction between energy supply and demand in time and space, and effectively improve the energy utilization rate, it is increasingly becoming a research hotspot in energy utilization and material science at home and abroad.
Get Price2021-2-14 · Arsenic (As) bioremediation has been an economical and sustainable approach, being practiced widely under several As-contaminated environments. Bioremediation of As involves the use of bacteria, fungi, yeast, plants, and genetically modified organisms for detoxification/removal of As from the contaminated site. The understanding of multi-factorial biological components involved in these ...
Get Price2018-10-20 · The biomass feedstock used in this study was peanut shell (PS) collected from the surrounding areas of Zhengzhou, Henan province. The proximate and ultimate analysis of the raw material are showed in Table 1.The MAC materials were prepared by impregnating different relative amounts of ferric chloride (FeCl 3 ·6H 2 O) into PS. Carbon dioxide with a purity of 99.999% was used …
Get Price1. Introduction. Demand for innovation in agriculture, driven by the need for increased food production, has had an insurmountable impact on the environment due to the overuse of chemicals to enhance soil fertility and plant growth and without foresight into their long-term effects (Wallace, 1933).These additives have now evolved into a group of chemicals commonly referred to as agro-chemicals.
Get PriceThe rotary evaporator is an experimental equipment for rectification and purification in the laboratory. It is heated by constant temperature and rotated under reduced pressure (negative pressure) to form a film to continuously evaporate a large amount of volatile solvent, evaporate efficiently, and then condense and recover the solvent.
Get Price2020-5-2 · In this study, a diversified waste recycling system and a green processing technology are proposed. This research not only finds feasible solutions to alleviate environmental problems of plastic pollution and straw burning but also provides new reuse methods for oyster shell waste and hogwash oil. The developed noval biocomposite material is conducive to the green development of express industry.
Get PriceProvinces of Guizhou, Henan and Hebei did not use any chlordane, even though termites had occurred in these provinces. Gridded usage inventories showed that the intensive use of chlordane was concentrated in the south-east part of China, Yangtze River Delta and Pearl River Delta in particular.
Get Price2020-9-23 · The effluent condition was measured by online monitoring system for practical application at livestock farm. COD, ammonia nitrogen, and the total phosphorus of effluent can be seen in Figure 4. Figure 4(a) shows changes of effluent COD after flocculation by CDF and PAM for 10 days. When CDF was used as livestock wastewater conditioner, the ...
Get Price2018-2-27 · The chemistry synthesis research of methionine are by making use of acrolein, aminolacfone, malonate and solid–liquid phase transfer catalytic alkylation, and is focused mainly on hydrolysis of 5-(2-methylethyl) hydantoin [].Although methionine is widely used in food, medicine and feed additive, industry is mainly through chemical synthesis of DL-methionine, some problems such as ...
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2021-5-26 · The carboxylate-functionalized passion fruit peel (PFPCS) was an efficient and rapid biosorbent for wastewater treatment. The PFPCS exhibited excellent selectivity to the cationic dyes, where the maximum adsorption capacities for methylene blue (MB) and methyl violet (MV) were 1775.76 mg·g-1 and 3756.33 mg·g-1, respectively. And the adsorption process of MB and MV on PFPCS …
Get Price2019-8-1 · The most typical and commonly used straight tank culture system is the runway tank reactor designed by Ostwald (1969). Since the progress of the system, except for some improvements in the mixing and online detection system, the overall structure of the system has not changed much till now. It is the oldest algae culture reactor .
Get Price2021-2-1 · Abstract. Carbon nanomaterials and nanocomposites are playing a crucial role in modern science and technology. This review summarizes a kind of high-power technology (including detonation, pulsed-laser ablation, arc-electric, joule & induction heating, and microwave-induced plasma) that can synthesis such nanomaterials in seconds.
Get Price2018-3-22 · Abstract A rapid and effective solid-phase extraction high-performance liquid chromatography fluorescence detection (SPE-HPLC–FLD) method, using a novel porous aromatic framework (PAF-6) as solid-phase extraction sorbent, was established to enrich and determine bisphenol (BPA) in milk and its packing samples. Parameters influencing the extraction efficiency, such as volume of the sample ...
Get PriceThe structure of an alkaline protease from Bacillus subtilis used by a tilapia collagen peptide manufacturer was analyzed, and the technology of the enzyme immobilized by sulfonated polystyrene (SPS) nanoparticles was studied. The particle size distribution, SEM, EDS, TEM, and FT-IR spectroscopy of the carrier before and after immobilization were analyzed.
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Volume 647. 2021. Previous issue Next issue. 2020 6th International Conference on Advances in Energy Resources and Environment Engineering 20-22 November 2020, Chongqing, China
Get PriceChina National Tobacco Quality Supervision and Test Center, Zhengzhou, China. Objectives: This study aimed to analyze the distribution frequencies of major polymorphic loci of nicotine metabolic genes CYP2A6 and CYP2B6 in a Chinese population, and determine the association between these polymorphic loci and smoking addiction.
Get PriceThe aim of this study was to gain deeper insights into the dynamics of fermentation parameters and the bacterial community during the ensiling of high-moisture alfalfa. A commercial lactic acid bacteria (YX) inoculant was used as an additive. After 15 and 30 days of ensiling, the control silage (CK) exhibited a high pH and a high concentration of ammoniacal nitrogen (NH3-N); Enterobacter and ...
Get Price2018-7-26 · 359. 686. 251. 237. 23 0 0 12/18/2014 2013 10 407 9. 33 0 0 12/15/2014 2013 263 2 450 457 8 24225585. 25 0 0 2013 15 4 1947 1960 14. 17 0 0 2013 265 …
Get Price2014-1-16 · Comparison with other methods. There are numerous protein extraction methods based on either TCA/acetone precipitation or phenol extraction 12,13,21,22,56, many of which are widely used …
Get PriceBuilding complexes are widely used in modern cities. Due to the complex space of the building, the air pollution rises quickly when gas leakage. ... Bayesian reasoning is used to estimate the number of food safety events and the probability of occurrence. ... Fuzhou, Fujian, China; 2 School of Fashion, Henan University of Engineering, Zhengzhou ...
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