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Добірка наукової літератури з теми "NATURAL SOLUTION"

Автор: Grafiati

Опубліковано: 11 вересня 2023

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Статті в журналах з теми "NATURAL SOLUTION"

Comyns, Alan E. "A natural solution." Focus on Catalysts 2005, no. 4 (April 2005): 1. http://dx.doi.org/10.1016/s1351-4180(05)00879-2.

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Hui, Qian, and Li Peiyue. "Mixing Corrosion of CaCO3in Natural Waters." E-Journal of Chemistry 8, no. 3 (2011): 1124–31. http://dx.doi.org/10.1155/2011/891053.

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The methods of aqueous speciation calculation, pH calculation and the solubility (precipitability) calculation of CaCO3were used to study the mixing corrosion of CaCO3in natural waters. Mixing processes were done between two unsaturated (with CaCO3) solutions, two oversaturated solutions and between an unsaturated solution and an oversaturated solution, respectively. Results show that the mixing corrosion can be divided into two different levels: mixing corrosion in strict sense and mixing corrosion in broad sense. When mixing corrosion occurs, the HCO3-concentration in one end member solution is usually higher than that in the other solution, and the Ca2+concentration in the former solution is also usually higher than that in the latter one.

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Bates, Jo. "Natural reflex, simple solution." Dental Nursing 14, no. 8 (August 2, 2018): 378–79. http://dx.doi.org/10.12968/denn.2018.14.8.378.

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Lyon, Stuart. "A natural solution to corrosion?" Nature 427, no. 6973 (January 2004): 406–7. http://dx.doi.org/10.1038/427406a.

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DAINTON, BARRY. "Natural evil: the simulation solution." Religious Studies 56, no. 2 (July 10, 2018): 209–30. http://dx.doi.org/10.1017/s0034412518000392.

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AbstractThat natural evils are plentiful in our world is impossible (plausibly) to deny. Why would a benevolent and all-powerful God allow such an obviously imperfect world to be created? I argue that the problem of evil in this form only seems serious and intractable because our science and technology are currently at comparatively primitive levels. Civilizations whose technological capabilities are significantly more advanced than our own will be able to create artificial worlds of their own in a variety of different ways. Given the very real possibility of world-makers who are non-divine, the problem posed by natural evil is very much diminished.

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Kistan, A. "Fluoride Adsorption from Aqueous Solution Using Natural Adsorbents Such As Centella Asiatica." Pharmaceutics and Pharmacology Research 5, no. 8 (September 30, 2022): 01–10. http://dx.doi.org/10.31579/2693-7247/091.

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In this study carried out by means of photo-colorimetry using the SPANDS indicator at 620 nm to adsorb Fluoride ion from aqueous solution. The influence of pH was studied by altering the pH from 2 to 12 using a 0.1 Molar concentration of HCl & NaOH solution using 10 ppm Fluoride concentration of as an initial point a kinetic investigation was conducted at pH 6.90 0.10 at various time intervals. The adsorption isotherm was investigated at pH of 6.90 by changing the initial fluoride concentration from 5 to 50 mg / L. The skills of 4 different isotherms used such as Langmuir, Freundlich, Temkin, and Redlich-Peterson adsorption isotherms were examined. To elucidate the mechanism of fluoride adsorption on the surface of the adsorbent, the kinetic model's pseudo-first-order, pseudo-second-order, intra-particle diffusion, and Elovich models are employed to examine the current adsorption data to determine the related kinetic parameters. Lastly, the effects of a number competing for ions (Cl-, NO3-, SO42-, PO43-, Ca2+ and Mg2+) were detected using, 20 - 200 mg / L solution at pH 6.90 ± 0.10 over 1 hr. SEM, XRD, and FT-IR techniques were used to investigate the surface morphology and size distribution of the natural adsorbent for fluoride adsorption (Centella Asiatica). The impact of adsorbent dosage, contact time, pH, co-ions, initial fluoride concentration, and shaking speed Centella Asiatica was determined and clearly reported

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Ruijgrok, Elisabeth. "Natural solutions versus technical solutions." Research in Urbanism Series 7 (February 18, 2021): 261–82. http://dx.doi.org/10.47982/rius.7.137.

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‘Building with Nature’ solutions seem like a logical alternative to technical solutions. Working with nature instead of against it might save civil engineering costs. But will it also generate additional civil engineering benefits? Typical engineering benefits are related to flood prevention, transportation and sand mining. Both technical and natural solutions can produce these benefits. Natural solutions, however, may produce additional ecosystem benefits. These are rarely accounted for in investment decisions about engineering projects. This is not surprising as there are no rules stating that and how these benefits should be calculated. The Netherlands is the first country in Europe to install a national guideline for monetising ecosystem benefits within cost-benefit analyses in the public sector. This article shows how this guideline provides a systematic approach to prevent both over- and under-estimations of ecosystem benefits. The key to this approach is to make a distinction between goods and services that directly generate welfare while linking those to conditional functions that indirectly generate welfare. This approach is applied to flood defence in the Scheldt estuary in Belgium. It resulted in benefit estimates that were large enough to compensate for the extra cost of natural solutions. Taking ecosystem benefits into account influenced the flood protection decision of the national government: the natural ‘inundation areas’-solution was preferred to the technical solution of ‘dyke heightening’.

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Allouch, Amena, Lyn Jaber, and Rim Nasser. "Regulated Natural Solution Containing Calcium Ions." International Journal of Scientific and Research Publications (IJSRP) 9, no. 1 (January 24, 2019): p8588. http://dx.doi.org/10.29322/ijsrp.9.01.2019.p8588.

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Behl, Shubhangi. "GINGIVAL HERBAL DEPIGMENTATION: A NATURAL SOLUTION??" International Journal of Advanced Research 10, no. 06 (June 30, 2022): 1039–47. http://dx.doi.org/10.21474/ijar01/14983.

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A smile not only enhances the beauty of an individual, it also boosts ones selfconfidence. Many factors such as lip position, tooth position, its morphology along with gingival tissue, attribute to the harmony of a beautiful smile. Gingival tissuehealth,color and contour are important components affecting an attractive smile. Amongst the gingival tissue, unsightly pigmented gingiva is of important concern for unpleasant smile. There are some prime pigments which contribute to the color of the gingiva. They are melanin, carotene, reduced hemoglobin and oxy-Hemoglobin. However, excessive melanin synthesis by active melanocytes (Unicellular dendritic cells) residing in the basal and suprabasal cell layers of the epithelium1cause its excessive deposition and unesthetic appearance of the gingiva. Various techniques have been developed to treat gingival hyperpigmentation2,3,4.However due to certain limitations of these techniques and due to growing demand for better aesthetics, many advances have been made to improve this untoward appearance. In this review we are planning to discuss and explore the herbal treatment modalities which can be appliedfor hyperpigmented gingiva with less potential of having side effects.

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Chirita, Paul, Mircea Preda, and Olimpia Rusu. "NATURAL PYRRHOTITE DISSOLUTION IN AQUEOUS SOLUTION." SOUTHERN BRAZILIAN JOURNAL OF CHEMISTRY 10, no. 11 (December 20, 2002): 11–17. http://dx.doi.org/10.48141/sbjchem.v10.n11.2002.14_2002.pdf.

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The effects of some metal (II) ions on the natural pyrrhotite dissolution in hydrochloric acid solutions were studied Our results suggest that the rate of pyrrhotite dissolution increases in the presence of Sn2+ ion. Ions like Ni2+, Co2+, Cu2+, zn2+ do not appear to have any effect on pyrrhotite dissolution in hydrochloric acid solutions. The magnitude of the activation energy (23.31 kJ mol-1) is in agreement with a mechanism controlled by a diffusion process.

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Дисертації з теми "NATURAL SOLUTION"

Konrad, Stephanie, and Daniela Polziehn. "The Natural Solution? : A Qualitative Study on Attitudes towards Natural Care Products for Men of Generation Y." Thesis, Internationella Handelshögskolan, Högskolan i Jönköping, IHH, Företagsekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30387.

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Smethurst, Christopher. "A Finite Element Solution of the Natural Convection Problem in 3D." Thesis, University of Manchester, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.517825.

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Donini, Mariovane Sabino. "Numerical solution for the droplet combustion." Universidade Federal do Pampa, 2017. http://dspace.unipampa.edu.br:8080/jspui/handle/riu/1955.

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Submitted by Cátia Araújo (catia.araujo@unipampa.edu.br) on 2017-09-29T13:05:00Z No. of bitstreams: 1 Mariovane Sabino Donini - 2017.pdf: 4347435 bytes, checksum: b83edb6c2d0b7868757722dc435be9fa (MD5)
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Made available in DSpace on 2017-09-29T16:25:43Z (GMT). No. of bitstreams: 1 Mariovane Sabino Donini - 2017.pdf: 4347435 bytes, checksum: b83edb6c2d0b7868757722dc435be9fa (MD5) Previous issue date: 2017
In the present work, vaporization and combustion of an isolated fuel droplet at diferente ambient temperatures are examined numerically in order to analyze the effect of buoyancy force on the flame. Generally, fuel droplets in combustion devices are so small that the influence of buoyancy force on vaporization and combustion of droplets is negligible. On the other hand, fuel droplets in experimental devices are affected by the buoyancy force due to their diameters being around or more than 1 mm. To reduce the buoyancy effects, expensive experimental studies are performed in microgravity ambient (drop-tower or out of space). In normal-gravity conditions, the buoyancy force is induced by temperature gradient on ambient atmosphere. The buoyancy is positive in regions of hot gases and negative in regions of cold gases compared with the ambient atmosphere gas. Hot gases move upward and cold gases downward. Playing with the positive buoyancy force of hot gases around the flame and with the negative (cold) buoyancy force of cold gases around the droplet via ambient atmosphere temperature, it is possible to modify the flame shape. In the numerical simulations, incompressible Navier–Stokes equations along with mixture fraction and excess enthalpy conservation equations are solved using a finite volume technique with a uniform structured grid. An artificial compressibility method was applied to reach steady state solutions. The numerical predictions have been compared with analytical results for a zero gravity condition, showing good agreement. For normal gravity condition the numerical results showed that when the ambient temperature increases, the velocity gradient and buoyancy source term decreases. Despite that, the flame increased in all directions. The results have also shown that increasing the ambient temperature, decreases the temperature gradient in the flame, which ends up affecting the flame position.
No presente trabalho, a vaporização e a combustão de uma gota de combustível isolada a diferentes temperaturas ambiente são examinadas numericamente para analisar o efeito da força de flutuação na chama. Geralmente, as gotículas de combustível em dispositivos de combustão são tão pequenas que a influência da força de flutuação na vaporização e na combustão de gotículas é insignificante. Por outro lado, as gotículas de combustível em dispositivos experimentais são afetadas pela força de flutuabilidade devido ao seu diâmetro em torno de ou mais de 1 mm. Para reduzir os efeitos de flutuabilidade, estudos experimentais caros são realizados em ambiente de microgravidade (drop-tower ou fora do espaço). Em condições de gravidade normal, a força de flutuação é induzida por gradiente de temperatura na atmosfera ambiente. A flutuabilidade é positiva em regiões de gases quentes e negativas em regiões de gases frios em comparação com o gás atmosférico ambiente. Os gases quentes movem-se para cima e os gases frios para baixo. Jogando com a força de flutuação positiva dos gases quentes ao redor da chama e com a força de flutuação negativa (fria) dos gases frios ao redor da gota através da temperatura da atmosfera ambiente, é possível modificar a forma da chama. Nas simulações numéricas, as equações de Navier-Stokes incompressíveis juntamente com a fração de mistura e as equações de conservação de entalpia em excesso são resolvidas usando uma técnica de volume finito com uma grade estruturada uniforme. Foi aplicado um método de compressibilidade artificial para alcançar soluções de estado estacionário. As previsões numéricas foram comparadas com resultados analíticos para uma condição de gravidade zero, mostrando boa concordância. Para a condição de gravidade normal, os resultados numéricos mostraram que, quando a temperatura ambiente aumenta, o gradiente de velocidade e o termo da fonte de flutuação diminuem. Apesar disso, a chama aumentou em todas as direções. Os resultados também mostraram que aumentar a temperatura ambiente, diminui o gradiente de temperatura na chama, o que acaba afetando a posição da chama.

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Ogunrobo, Emmanuel Osarumwense. "Analysis of hydrocarbon solubility in amine solution used for natural gas processing." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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This Thesis comprises of experimental and the theoretical work done on the analysis of hydrocarbon solubility in amine solutions used for natural gas processing. The objective of this study is the solubility of hydrocarbons in different Amine solutions and the comparison of the results obtained, in order to understand their behaviour in applications related to Natural Gas processing. From solubility knowledge indeed several informations of interest could be obtained such as: i) quantification of possible losses of hydrocarbons during amine treatment ii) evaluation of the amount of these components reaching the stripper and iii) determination of the additional work to be done for purification of the amine solutions after the absorber. Data for the solubility of the different hydrocarbon and Amines are indeed important for proper modelling of absorption columns and the strippers. The peculiarity of the study is that in addition to the analysis of solubility on pure and mixed amine solution also the solubility of loaded amine solutions will be considered, i.e. Amine solution mixed with acid gas like CO2 and/or H2S. Indeed, while there had been previous measurements made on this project, but they were basically for the non-loaded amine solution, giving therefore only partial information on this topic. This experiment is carried out at the laboratories of the group of Chemical Engineering at Aalto School of Chemical Technology and written at the University of Bologna Italy. The chief apparatus for this study among others are BBQ apparatus with a capacity of 30 vials and GC Agilent 7890 B. The following Hydrocarbons were used: Benzene, Ethylbenzene, Toluene, Hexane, Cyclohexane and 2,2,4-Trimethylpentane and the following amines solutions: Diglycolamine (DGA), N-methyl-diethanolamine(MDEA), Monoethanolamine(MEA), Di-Ethanolamine(DEA), and Piperazine. Tests were carried out at (define T and P) and at H2S and CO2 loading level ranging from about 0.15 to 0.45

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Rhys, Natasha Hazel. "Exploring the structural properties of natural and synthetic biological molecules in aqueous solution." Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/11248/.

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Peptoids are synthetic mimics of naturally-occurring peptides (the natural building blocks of proteins). These interesting building blocks are more resistant to temperature, pH and solvent denaturation, and possess a more exible backbone compared to their peptide counterparts. As a result, peptoids are emerging as promising biomimetic materials for a range of applications. Despite this potential, very little is known about the intermolecular interactions which determine their stability and solubility, including hydrogen-bonding, hydrophobic interactions and hydration properties, as well the structural properties of the individual imino acid blocks that make them. This thesis presents neutron diffraction experiments coupled with isotopic substitution and computational modelling to complete a structural study on a model imino acid in aqueous solution. The focus here has been on glutamine, a molecule that is capable of forming multiple hydrogen bonds and is thought to self-assemble through preferential side-chain hydrogen bond interactions, making it an interesting model system. Furthermore, glutamine is important in many biochemical processes and its presence has been associated with a number of neurodegenerative diseases. By probing the structural properties of the model system in aqueous solution and of its amino acid equivalent, L-glutamine, it has been possible to uncover details of important intermolecular interactions that govern the properties of these biomolecules. The interactions of the model imino acid have also been observed with respect to temperature and concentration and compared to a naturally-occurring imino acid, sarcosine, to determine the impact of side chain on imino acid interactions. This work also serves as a reference for completing structural studies on such biomolecules, covering methodological benefits and limitations. This is the necessary first step in building a framework to understand the self-assembly and driving forces in more complex peptoid and peptide structures and serves as a reference for completing neutron studies on natural and synthetic biomolecules.

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Comuni, Federica. "A natural language processing solution to probable Alzheimer’s disease detection in conversation transcripts." Thesis, Högskolan Kristianstad, Fakulteten för naturvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-19889.

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This study proposes an accuracy comparison of two of the best performing machine learning algorithms in natural language processing, the Bayesian Network and the Long Short-Term Memory (LSTM) Recurrent Neural Network, in detecting Alzheimer’s disease symptoms in conversation transcripts. Because of the current global rise of life expectancy, the number of seniors affected by Alzheimer’s disease worldwide is increasing each year. Early detection is important to ensure that affected seniors take measures to relieve symptoms when possible or prepare plans before further cognitive decline occurs. Literature shows that natural language processing can be a valid tool for early diagnosis of the disease. This study found that mild dementia and possible Alzheimer’s can be detected in conversation transcripts with promising results, and that the LSTM is particularly accurate in said detection, reaching an accuracy of 86.5% on the chosen dataset. The Bayesian Network classified with an accuracy of 72.1%. The study confirms the effectiveness of a natural language processing approach to detecting Alzheimer’s disease.

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Li, Bo. "Synthesis, Kinetics and Mechanisms of Designer and Natural Product Antioxidants: From Solution to Cells." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34335.

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Lipid peroxidation has been implicated in the onset and progression of many degenerative diseases, including cardiovascular disease, Alzheimer’s disease and cancer. Accordingly, for more than 50 years, considerable effort has been devoted to the design of synthetic compounds or the discovery of natural products that can slow lipid peroxidation. Despite the enormous investments made to date, no clear antioxidant strategies have emerged for the treatment and/or prevention of degenerative disease. We argue that this is because of a lack of fundamental understanding of the chemical reactivity of these compounds in relevant contexts. Herein, we describe studies of our optimized synthetic radical-trapping antioxidant (RTA) – the tetrahydronaphthyridinols (THNs). We first present the synthesis of a series of THN analogs of α-tocopherol (Nature’s premier lipid-soluble radical-trapping antioxidant) with varying sidechain substitution and then demonstrate how systematic changes in the lipophilicity of these potent antioxidants impact their peroxyl radical-trapping activities in lipid bilayers and mammalian cell culture. Their regenerability by water-soluble reductants in lipid bilayers, binding to human tocopherol transport protein (hTTP), and cytotoxicity were also evaluated to provide insight on whether this type of antioxidant can be potentially pushed toward animal studies. We also describe analogous studies of natural products such as the garlic-derived thiosulfinate allicin and the grape-derived polyphenol resveratrol. These compounds have attracted significant attention in the past 20 years due to their purported health benefits, which are often ascribed to their purported radical-trapping activities. To date, systematic studies on their radical-trapping activities in solution, lipid bilayers and mammalian cells have been lacking. We have determined that allicin and petivericin, while effective RTAs in solution, are not so in lipid bilayers. Moreover, the compounds are not antioxidants in cell culture, but instead kill the cells. Similarly, resveratrol and its dimers pallidol and quadrangularin A, are found to be inefficient RTAs in lipid bilayers. Our studies to date rather suggest that they autoxidize readily to produce hydrogen peroxide, which may induce expression of phase 2 antioxidant enzymes, affording cytoprotection. Our insights underscore the need for systematic studies of antioxidant activity in multiple contexts.

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Talbot, James David Ralph. "The conductivity of carbonate and phosphate species in aqueous solution and in some related natural waters." Thesis, University of Reading, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280559.

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Jonsson, Åsa. "Enhancement of Dry Content in Coating Solution for Functional Packaging." Thesis, Linköping University, Department of Physics, Chemistry and Biology, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-16576.

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The main goal for a packaging is to protect the product inside. Typical packaging nowadays is made of layers of paper and barriers consisting of plastics or aluminum foil. A problem with the barrier used today is the environmental thinking. Xylophane® is an environmental friendly and biodegradable alternative to the current barrier material used in packaging. It consists of the natural carbohydrate xylan and additives. Xylophane® is an efficient barrier to oxygen, grease and aroma and can prolong the shelf life of sensitive food.

The raw material xylan is water soluble and Xylophane® can be coated on paper, board and plastics without using other solvents. A problem with the drying process is the amount of energy needed and the consumption needs to be decreased. Also, the drying capacity of the equipment to be used is often limited and the amount of water to be dried off is critical for the success of the coating process. By increasing the dry content of Xylophane® without increasing the viscosity too much, the drying process can be more effective. In this thesis, studies were made of using a filler as an additive to increase the dry content without destroying the barrier properties.

With an experimental design, a suitable relationship between the ingredients xylan (X), plasticizer (P) and filler (F) was found. Xylan is the main component and is needed to get a good oxygen barrier. The plasticizer decreases the oxygen barrier properties but is needed to make the material more flexible. The filler is positive for the barrier properties. The chosen composition was X:P = 7:3 and X:F = 1:1. Some extra experiments were made to find a reasonable value of the dry content. Dry contents around 18 % work well with temperatures at and above 45°C, but to manage to perform coating at room temperature the dry content needs to be lower.

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Heeren, Alexander Heeren. "Identifying the Problem or Identifying with the Solution?The Role of Motivated Reasoning and Identity Politics in Environmental Science." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1468073451.

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Книги з теми "NATURAL SOLUTION"

Royal Society of Chemistry (Great Britain), ed. Water: A matrix of life. 2nd ed. Cambridge, UK: Royal Society of Chemistry, 2000.

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1926-, Lawrence Ronald Melvin, and Zucker Martin, eds. The miracle of MSM: The natural solution for pain. New York: Putnam, 1999.

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Davison, J. The Theta Process - a natural solution for acid pollution. S.l: s.n, 1987.

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Albæk, Svend. Stackelberg leadership as a natural solution under cost uncertainty. Aarhus, Denmark: Institute of Economics, University of Aarhus, 1989.

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1926-, Lawrence Ronald Melvin, and Zucker Martin, eds. The miracle of MSM: The natural solution for pain. New York: Berkley Books, 1999.

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Student solution manual for The Physics of the natural philosophers. Boston, MA: Pearson, 2008.

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Quek, Siew Young. Adsorption of heavy metal from aqueous solution by natural low-cost materials. Birmingham: University of Birmingham, 1998.

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Jones, Shann Nix. The good skin solution: Natural healing for eczema, psoriasis, rosacea and acne. Carlsbad, California: Hay House, 2017.

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The inflammation revolution: A natural solution for arthritis, asthma and other inflammatory disorders. Garden City Park, N.Y: Square City Publishers, 2005.

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The high blood pressure solution: Natural prevention and cure with the K factor. Rochester, Vt: Healing Arts Press, 1993.

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Частини книг з теми "NATURAL SOLUTION"

Yousefi, Ali R., and Seyed M. A. Razavi. "Dilute Solution Properties of Emerging Hydrocolloids." In Emerging Natural Hydrocolloids, 53–79. Chichester, UK: John Wiley & Sons, Ltd, 2019. http://dx.doi.org/10.1002/9781119418511.ch2.

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Hasan, Masud, S. M. Shabab Hossain, Md Mahmudur Rahman, and M. Sohel Rahman. "An Optical Solution for the Subset Sum Problem." In Natural Computing, 165–73. Tokyo: Springer Japan, 2010. http://dx.doi.org/10.1007/978-4-431-53868-4_19.

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Manko, David J. "Solution Procedures." In A General Model of Legged Locomotion on Natural Terrain, 33–38. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3574-4_4.

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Urquhart, Neil. "Solving Problems That Have Dual Solution Characteristics." In Natural Computing Series, 59–82. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-98108-2_4.

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Urquhart, Neil. "Solving Problems That Have Multiple Solution Characteristics." In Natural Computing Series, 83–112. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-98108-2_5.

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Shepelev, O., N. Meiry, and M. Shepelev. "Concerning the Nature of Heat Sensitivity of Natural Latex." In Surfactants in Solution, 1599–606. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-1833-0_37.

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Kennedy, Malcolm W., and Alan Cooper. "Surfactant Proteins and Natural Biofoams." In Proteins in Solution and at Interfaces, 365–77. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118523063.ch18.

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Zhang, Yu-an, QingLian Ma, Makoto Sakamoto, and Hiroshi Furutani. "Effect of Mutation to Distribution of Optimum Solution in Genetic Algorithm." In Natural Computing, 380–87. Tokyo: Springer Japan, 2010. http://dx.doi.org/10.1007/978-4-431-53868-4_43.

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Marino, A. "Genetic Search on Highly Symmetric Solution Spaces: Preliminary Results." In Natural Computing Series, 387–407. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-662-04448-3_19.

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Bagchi, Aniruddha, and Francis A. Kulacki. "Mathematical Formulation and Numerical Solution." In Natural Convection in Superposed Fluid-Porous Layers, 15–26. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6576-8_3.

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Тези доповідей конференцій з теми "NATURAL SOLUTION"

Abzianidze, Lasha. "Natural Solution to FraCaS Entailment Problems." In Proceedings of the Fifth Joint Conference on Lexical and Computational Semantics. Stroudsburg, PA, USA: Association for Computational Linguistics, 2016. http://dx.doi.org/10.18653/v1/s16-2007.

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Peng, Ya-Xin, Xi-Yan Hu, and Lei Zhang. "An Iterative Method for Bisymmetric Solutions and Optimal Approximation Solution of AXB=C." In Third International Conference on Natural Computation (ICNC 2007). IEEE, 2007. http://dx.doi.org/10.1109/icnc.2007.231.

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Dalianis, Ioannis. "A natural solution to the gravitino overabundance problem." In Proceedings of the Corfu Summer Institute 2012. Trieste, Italy: Sissa Medialab, 2013. http://dx.doi.org/10.22323/1.177.0072.

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Hiebert, Randy, Lauren Panzo, and Robert Hyatt. "Biomineralization: A Natural Solution to Eliminate Gas Migration." In SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210258-ms.

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Abstract A Seneca Resources Company, LLC (Seneca) natural gas well in Pennsylvania was leaking methane from both the 13-3/8 in × 9-5/8 in (55 psi) and the 9-5/8 in × 7 in (85 psi) cemented annuli. Previous attempts to mitigate the problem had proven unsuccessful, which prompted the trial of a new method using the natural process of biomineralization. BioSqueeze Inc. (BSI) was contracted by Seneca to apply their proprietary biomineralization technology to the well. To prepare the well, circumferential notches were cut through all casing strings all the way to the formation to allow fluid injection into the annuli. Biomineralizing fluids were then pumped into the well, where they formed crystalline calcium carbonate in the micro annuli. After 1.5 days of treatment, the injection rate dropped by several orders of magnitude. Subsequent monitoring by a state regulator determined surface pressure had been eliminated and there were no escaping hydrocarbons.

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Alipanah, Amjad. "A WAVELET COLLOCATION METHOD FOR THE NUMERICAL SOLUTION OF POPULATION DIFFERENTIAL EQUATION." In International Conference of Natural Science. College of Basic Education, Charmo University, Chamchamal, 2019. http://dx.doi.org/10.31530/17035.

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Jwamer, Karwan, and Hawsar Ali. "ASYMPTOTIC BEHAVIORS OF THE SOLUTION AND EIGENVALUES OF SPECTRAL PROBLEM." In International Conference of Natural Science 2017. College of Basic Education, Charmo University, Chamchamal, Sulaimani/Iraq, 2018. http://dx.doi.org/10.31530/17013.

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Tao, Zhou. "TSP Problem Solution Based on Improved Genetic Algorithm." In 2008 Fourth International Conference on Natural Computation. IEEE, 2008. http://dx.doi.org/10.1109/icnc.2008.486.

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Zhang, Linli, Anping Liu, Huijuan Li, and Qing Tang. "Existence of Periodic Solution for Cellular Neural Networks." In 2008 Fourth International Conference on Natural Computation. IEEE, 2008. http://dx.doi.org/10.1109/icnc.2008.704.

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Sun, Baochen, Xiwei Sun, Yue Wu, Yiling Yin, and Goping Yang. "A New Algorithm for Generating Unique-Solution Sudoku." In 2008 Fourth International Conference on Natural Computation. IEEE, 2008. http://dx.doi.org/10.1109/icnc.2008.788.

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Tinsley, Andrea, Prem A. Midha, Robert L. Nagel, Daniel A. McAdams, Robert B. Stone, and L. H. Shu. "Exploring the Use of Functional Models as a Foundation for Biomimetic Conceptual Design." In ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/detc2007-35604.

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The natural world provides numerous cases for analogy and inspiration. From simple cases such as hook and latch attachments to articulated-wing flying vehicles, nature provides many sources for ideas. Though biological systems provide a wealth of elegant and ingenious approaches to problem solving, there are challenges that prevent designers from leveraging the full insight of the biological world into the designed world. This paper describes how those challenges can be overcome through functional analogy. Through the creation of a function-based repository, designers can find biomimetic solutions by searching the function for which a solution is needed. A biomimetic function-based repository enables learning, practicing and researching designers to fully leverage the elegance and insight of the natural world. In this paper, we present the initial efforts of functional modeling natural systems and then transferring the principles of the natural system to an engineered system. Four case studies are presented in this paper. These case studies include a biological solution to a problem found in nature and engineered solutions corresponding to the high level functionality of the biological solution, i.e., a fly’s winged flight and a flapping wing aircraft. The case studies show that unique, creative engineered solutions can be generated through functional analogy with nature.

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Звіти організацій з теми "NATURAL SOLUTION"

Liu, Yong, and Harel Shouval. Principal Components of Natural Images: An Analytical Solution. Fort Belvoir, VA: Defense Technical Information Center, May 1993. http://dx.doi.org/10.21236/ada264800.

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Kenneth Brezinsky. Microbially-Enhanced Redox Solution Reoxidation for Sour Natural Gas Sweetening. Office of Scientific and Technical Information (OSTI), January 2008. http://dx.doi.org/10.2172/972637.

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Rai, C. Microbially-enhanced redox solution reoxidation for sweetening sour natural gas. Office of Scientific and Technical Information (OSTI), June 1995. http://dx.doi.org/10.2172/82537.

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de la Puente, Alejandro. A Singlet Extension of the Minimal Supersymmetric Standard Model: Towards a More Natural Solution to the Little Hierarchy Problem. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1127917.

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Rudisill, Tracy, and W. Daniel. DEMONSTRATION OF THE BLENDING OF THE H?CANYON 2ND U CYCLE PRODUCT WITH NATURAL U TO PRODUCE A HALEU SOLUTION. Office of Scientific and Technical Information (OSTI), July 2023. http://dx.doi.org/10.2172/1993029.

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Tkac, Peter, Roman Gromov, Sergey D. Chemerisov, David A. Rotsch, and George F. Vandegrift. Radiochemical purity of Mo and Tc solution obtained after irradiation and dissolution of Mo-100-enriched and ultra-high-purity natural Mo disks. Office of Scientific and Technical Information (OSTI), September 2016. http://dx.doi.org/10.2172/1342166.

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Kucklick, John R., and Michele M. Schantz. Interlaboratory Comparison Study to Support the Deepwater Horizon Natural Resource Damage Assessment: Description and Results for QA11Blood01- PAHs, PAH Metabolites, and DOSS in Solution and Blood. Gaithersburg, MD: National Institute of Standards and Technology, July 2012. http://dx.doi.org/10.6028/nist.ir.7869.

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Maydykovskiy, Igor, and Petra Užpelkis. The Concept of space-time quanta in future technologies. Intellectual Archive, December 2020. http://dx.doi.org/10.32370/iaj.2464.

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The article discusses the possibility of using the technological advantages that appear in connection with the discovery of the physical essence of Time and new interpretation of the structure of space in the form of space-time quanta. One of the problems that can be successfully solved on the basis of the new physical model is the problem of establishing the true nature of gravity. The solution to this problem is directly related to the implementation of the idea of unsupported motion based on the interaction in a certain way of the created asymmetric interference structure of longitudinal waves with the natural structure of spatial frequencies.

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Luedeman and Olsen. PR-179-12200-R01 Power Cylinder Timed Lube Oil Injection to Reduce Consumption and Catalyst Fouling. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), April 2013. http://dx.doi.org/10.55274/r0010807.

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This project is driven by concerns over excessive cylinder lubrication in large bore two-stroke natural gas engines (LBNGE). Excessive cylinder lubrication can lead to: - Increased operating costs due to high lubricating oil consumption. - Poisoning of catalytic converters. - Increased pollutant emissions. Development of an electronically-controlled, power-cylinder lubricator (ECPCL) is a likely solution that could decrease excessive cylinder lubrication. This lubricator would optimize cylinder lubrication by controlling both the injection rate and injection timing, relative to piston position.

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Bridges, Todd, Jeffrey King, Jonathan Simm, Michael Beck, Georganna Collins, Quirjin Lodder, and Ram Mohan. Overview : International Guidelines on Natural and Nature-Based Features for Flood Risk Management. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/41945.

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The application of natural and nature‑based features (NNBF) has grown steadily over the past 20 years, supported by calls for innovation in flood risk management (FRM) and nature‑based solutions from many different perspectives and organizations. Technical advancements in support of NNBF are increasingly the subject of peer‑reviewed and other technical literature. A variety of guidance has been published by numerous organizations to inform program‑level action and technical practice for specific types of nature‑based solutions. This effort to develop international guidelines on the use of NNBF was motivated by the need for a comprehensive guide that draws directly on the growing body of knowledge and experience from around the world to inform the process of conceptualizing, planning, designing, engineering, constructing, and operating NNBF.

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