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  • 1
    Online Resource
    Online Resource
    Chemical Dust Suppression Technology and Its Applications in Mines (Open-pit Mines) (2022)
    Singapore :Springer Nature Singapore :
    Details
    Keywords: Environmental health. ; Pollution. ; Occupational health services. ; Environmental Health. ; Pollution. ; Occupational Health.
    Description / Table of Contents: 1. Introduction -- 2. Basic theory of chemical suppression of dust -- 3. Mechanism of Production and Transport of Blasting Dust and Smoke of Open-pit Mine and Study on Pollution Model -- 4. Chemical Suppression Technology of Open-pit Mine Blasting Dust and Smoke -- 5. Chemical Suppression of Dust Technology of Open Ore Stacking Yard.
    Abstract: This book focuses on the study of chemical dust suppression in mine dust pollution control by means of theories, experiments, computer simulation, and case application, aiming at providing chemical dust suppression solutions for mining worksites. It has seven chapters, including the following contents: (1) introduces fundamental theories and applications of chemical dust suppression, analyzes the dust source intensity of worksites and the mechanisms of dust generation, and summarizes the dust control measures for different mining worksites. (2) According to the mechanisms of dust generation in different mining worksites, targeted dust suppressants were developed. Through optimization by monomer experiment and orthogonal experiment, the optimum formula of different types of dust suppressants was obtained, and its properties were characterized. (3) The dust suppressant field application process was introduced, and the economic benefits were analyzed. This book is expected to provide valuable references both for researchers and engineering technicians engaged in environmental engineering, safety engineering, occupational health, and mining metallurgical engineering, and it also serves as a textbook for graduate students in above disciplines.
    Type of Medium: Online Resource
    Pages: X, 325 p. 194 illus., 141 illus. in color. , online resource.
    Edition: 1st ed. 2022.
    ISBN: 9789811693809
    URL: https://doi.org/10.1007/978-981-16-9380-9
    DOI: 10.1007/978-981-16-9380-9
    DDC: 613.1
    Language: English
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    E-BOOKS (AWI ONLY)
  • 2
    Electronic Resource
    Electronic Resource
    Particulates pollution management and economic analysis of small rural enterprises in mountain areas: A case study of Wenquan town in China (1994)
    Springer
    Environmental management 18 (1994), S. 175-181 
    Details
    ISSN: 1432-1009
    Keywords: Cement dust ; Atmospheric particulates pollution ; Optimal control ; Economic assessment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract At present, many rural enterprises in China's mountainous areas are developing rapidly, and due to poor planning and improper management, in an uncontrolled manner. These small enterprises are making atmospheric pollution far more serious and more difficult to control than before. Thus, as is the case with most developing countries, China is facing the challenge of managing the increased environmental pollution that is accompanying its economic development. This paper examines the case of cement dust pollution in the town of Wenquan in Sichuan province in order to determine how to adjust the relationship between development of rural enterprises and atmospheric environmental pollution in mountainous areas. Using the single objective linear programming method, and based on the principle of overall optimization, an optimal control plan for different pollution sources was worked out and an economic assessment on reclamation of cement dust was completed. According to our analysis, after implementation of this plan for four years, two months, the concentrations of suspended particles in Wenquan will achieve the requirement of the national third-order ambient air quality standard; the current serious dust pollution will be completely controlled; and the reclamation of cement dust will totally compensate for the cost of dust control and will result in 92,000 yuan of pure profit per year. At that time, the economy and environment will be in harmony.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02393760
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Spin-flip reflection at the normal metal-spin superconductor interface (2017)
    American Physical Society
    Details
    Publication Date: 2017-03-22
    Print ISSN: 2469-9950
    Electronic ISSN: 2469-9969
    Topics: Physics
    Published by American Physical Society
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  • 4
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    Vision-based vehicle detection and counting system using deep learning in highway scenes (2019)
    Springer
    Details
    Publication Date: 2019-12-01
    Print ISSN: 1867-0717
    Electronic ISSN: 1866-8887
    Topics: Architecture, Civil Engineering, Surveying
    Published by Springer
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  • 5
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    Particulates pollution management and economic analysis of small rural enterprises in mountain areas: A case study of Wenquan town in China (1994)
    Springer
    Details
    Publication Date: 1994-03-01
    Print ISSN: 0364-152X
    Electronic ISSN: 1432-1009
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
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  • 6
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    Cobalt oxide–graphene nanocomposite as anode materials for lithium-ion batteries (2010)
    Springer
    Details
    Publication Date: 2010-12-01
    Print ISSN: 1432-8488
    Electronic ISSN: 1433-0768
    Topics: Chemistry and Pharmacology
    Published by Springer
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  • 7
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    Effects of Fermented Tea Residue on Fattening Performance, Meat Quality, Digestive Performance, Serum Antioxidant Capacity, and Intestinal Morphology in Fatteners (2020)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2020-01-22
    Description: This study investigated the dietary supplementation of tea residue fermented by Bacillus subtilis, Aspergillus niger, and Saccharomyces cerevisiae, to explore its effects on growth performance, digestion performance, meat quality, serum antioxidant capacity, and intestinal morphology in pigs bred for rapid growth, also known as fatteners. One hundred and ninety-two healthy “Duroc × Landrace × Yorkshire” ternary hybrid pigs (body weight 70 ± 1.0 kg) were randomly divided into four groups according to the feeding test requirements, with four replicates in each group, and 12 fatteners per replicate. The control group (CG) was fed the basal diet. Treatments 1 (T1), 2 (T2), and 3 (T3), comprising ratios of 10%, 15%, and 20% of tea residue were added to the basal diet. The test period was 60 days. The results showed that supplementation of FTR in fatteners’ diets increased final body weight (FBW), average daily gain (ADG), and feed conversion ratio (FCR) in the T1 and T2 groups (p 〈 0.05). Compared with the other groups, the lightness (L*) and pH were significantly affected in the T2 group (p 〈 0.05). Compared with the CG, dietary supplementation of FTR significantly increased the nutrient digestibility of crude protein (CP), ether extract (EE), calcium (Ca), and phosphorus (P), improved the lipase and trypsin activities, and reduced drip loss and the shear force of fatteners (p 〈 0.05). Glutathione peroxidase (GSH-Px) and total antioxidant capacity (T-AOC) were significantly increased in the T2 and T3 groups compared with the other groups (p 〈 0.05). Supplementation of FTR in the jejunum significantly increased the villi height of the T2 group and the ratio of villi height to crypt depth of the FTR groups. Compared with the other two groups, the T2 and T3 groups significantly reduced the ratio of the villous height to crypt depth in the duodenum (p 〈 0.05). In conclusion, the tea residue after fermentation was shown to have beneficial effects on the fattening performance, digestion performance, meat quality, serum antioxidant capacity, and intestinal morphology of fatteners.
    Electronic ISSN: 2076-2615
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Molecular Diversity Preservation International
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  • 8
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    Dietary Cadmium Chloride Supplementation Impairs Renal Function and Bone Metabolism of Laying Hens (2019)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2019-11-19
    Description: This study was conducted to evaluate the toxic effects of cadmium (Cd) on the kidney function and bone development in laying hens. A total of 480 Hy-line laying hens aged 38 weeks were randomly allocated into five treatments, each of which included six replicates of 16 birds. The concentrations of Cd in the diets of the five groups were 0.47, 7.58, 15.56, 30.55, and 60.67 mg/kg. Results showed that serum calcium (Ca) levels decreased significantly in the 60.67 mg Cd/kg diet group (p 〈 0.05). The activities of serum alkaline phosphatase (ALP) and bone ALP (BALP) decreased significantly in the 15.56, 30.55 and 60.67 mg Cd/kg diet groups (p 〈 0.05). The levels of parathyroid hormone (PTH) increased significantly in the 30.55 and 60.67 mg Cd/kg diet groups, and the estradiol (E2), 1,25-(OH)2-D3 and calcitonin (CT) decreased significantly with the increase of dietary Cd supplementation (p 〈 0.05). Histological results presented enlargements of renal tubules and tubular fibrosis in the kidney and decreased trabecular bone in the tibia. Tartrate-resistant acidic phosphatase (TRAP) staining results of tibia showed that osteoclast was significantly increased at the relatively high dose of dietary Cd (p 〈 0.05). In addition, the renal function indicators of blood urea nitrogen (BUN), urea acid (UA), and creatinine were significantly increased in Cd supplemented groups compared with the control group (p 〈 0.05). Low dose Cd exposure induced antioxidant defenses accompanying the increase in activities of catalase (CAT), glutathione peroxidase (GSH-Px), and the levels of glutathione (GSH) in renal tissue. At the same time, with the increased Cd levels, the activities of CAT, GSH-Px decreased significantly, and the level of malondialdehyde (MDA) increased significantly (p 〈 0.05). The activities of Na+/K+-ATPase and Ca2+/Mg2+-ATPase decreased significantly in the relatively high levels of dietary Cd (p 〈 0.05). These results suggest that Cd can damage renal function and induce disorders in bone metabolism of laying hens.
    Electronic ISSN: 2076-2615
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Molecular Diversity Preservation International
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  • 9
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    Age-Related Changes in Serum Lipid Levels, Hepatic Morphology, Antioxidant Status, Lipid Metabolism Related Gene Expression and Enzyme Activities of Domestic Pigeon Squabs (Columba livia) (2020)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2020-07-01
    Description: The objective of this study was to evaluate the age-related changes in antioxidant status and the lipid metabolism of pigeon squabs (Columba livia), by determining the BW, antioxidant indices, serum lipid levels, lipid metabolism-related enzyme activities, lipid metabolism-related gene expression, and liver morphology in squabs. Ten squabs were randomly selected and sampled on the day of hatching (DOH), days 7 (D7), 14 (D14) and 21 (D21) post-hatch, respectively. The results showed that BW of squabs increased linearly from DOH to D21. The minimum fold of BW gain was observed in the phase from D14 to D21. Serum triglyceride and free fatty acid levels displayed linear and quadratic trends as age increased, with these maximum responses in D14. Serum low-density lipoprotein cholesterol level responded to age linearly and quadratically with the minimum in D14. Serum high-density lipoprotein cholesterol level and the ratio of high-density lipoprotein cholesterol to low-density lipoprotein cholesterol increased linearly with age, whereas the very low-density lipoprotein cholesterol level decreased linearly. The activities of glutathione peroxidase, catalase, and superoxide dismutase in liver displayed linear and quadratic trends as age increased, with these minimum responses in D14. Hepatic malondialdehyde concentration responded to age linearly and quadratically, with the maximum in D14. Activities of lipoprotein lipase, hepatic lipase, and 3-hydroxy-3-methyl glutaryl coenzyme A reductase in liver responded to age linearly and quadratically, with these minimum responses in D14. Hepatic hormone-sensitive lipase activity displayed linear and quadratic trends as age increased with the maximum in D14. Hepatic acetyl CoA carboxylase activity on D14 was significantly lower than squabs on DOH and D7. Hepatic carnitine palmitoyltransferase 1 mRNA expression responded to age linearly and quadratically, with minimum response in D14. Hepatic mRNA expression of acetyl CoA carboxylase and fatty acid synthetase increased linearly with age. Hepatic Oil-Red-O staining area displayed a quadratic trend as age increased, with the maximum response in D14. In conclusion, the phase from DOH to D14 was a crucial development stage for growth, antioxidant status and lipid metabolism in pigeon squabs. The results suggest it is better to take nutritional manipulation in squabs before D14.
    Electronic ISSN: 2076-2615
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Molecular Diversity Preservation International
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  • 10
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    Dietary High Sodium Fluoride Impairs Digestion and Absorption Ability, Mucosal Immunity, and Alters Cecum Microbial Community of Laying Hens (2020)
    Molecular Diversity Preservation International
    Details
    Publication Date: 2020-01-21
    Description: (1) Background: This study was conducted to investigate the effects of dietary fluoride (F) on tissue retention, digestive enzymes activities, mucosal immunity, and cecum microbial community of laying hens. (2) Methods: Total of 288 37-week-old Hy-Line Gray laying hens with similar laying rate (85.16% ± 3.87%) were adapted to the basal diets for ten days, and then allocated into three groups at random (n = 9, 6, 6 replicates/group). The concentrations of F in the diets were 31.19 (the control group, CON), 431.38 (F400, low-F group) and 1237.16 mg/kg (F1200, high-F group), respectively. The trial lasted for 59 days. (3) Results: Results suggested that F residuals in duodenum responded to dietary F concentrations positively. The activities of amylase, maltase and lactase were decreased in high-F group, compared with those in the control group. The mRNA expression levels of jejunum and ileum secretory immunoglobulin A (sIgA) and Mucin 2, and sIgA concentrations were decreased inhigh-F group, than those in the control group. The observed operational taxonomic units (OTUs) of laying hens in high-F group were higher than the CON and low-F groups, and the bacterial structure was different from the other two groups. The Lactobacillus was higher in the control group, while Gammaproteobacteria, Escherichia-Shigella, Streptococcaceae, and Enterobacteriaceae were higher in the high-F group. (4) Conclusions: The actual results confirmed that dietary high F intake increased the F residuals in duodenum, and reduced the digestion and absorption of nutrients and immunity via decreasing the activities of digestive enzymes, impairing intestine mucosal immunity, and disturbing the cecum microbial homeostasis of laying hens.
    Electronic ISSN: 2076-2615
    Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Molecular Diversity Preservation International
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