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Journal articles on the topic 'Physico-chemical'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 July 2024

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1

Oghly, Jurakulov Sanjar Zafarjon. "PHYSICO-CHEMICAL PROPERTIES OF POLYMER COMPOSITES." American Journal of Applied Science and Technology 3, no. 10 (October 1, 2023): 25–33. http://dx.doi.org/10.37547/ajast/volume03issue10-06.

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The article deals with the role of physics in the modern national economy, production and scientific system. A number of issues are considered, such as physics, the subject of the school curriculum, the methodology of teaching physics, the basics of professional training of a physics teacher, the content and tasks of the methodology of teaching physics, the methodology for studying the methodology of teaching physics, the history of the development of methods of teaching physics.

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2

Chaabna, Manel, Lina Aissa, Fadhila Debbah, and Nassima Taleb. "Physico-chemical incompatibilities." Batna Journal of Medical Sciences (BJMS) 1, no. 2 (December 31, 2014): 107–10. http://dx.doi.org/10.48087/bjmstf.2014.1212.

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Compatibility problems are frequently encountered in hospitals, particularly in intensive care units. Physico-chemical incompatibilities (PCI) may have different origins and several types. The result is inactivation of the active ingredient reacted training or derivative(s) more or less toxic. The issue of PCI is made complex, moreover, by the fact that the reactions involved may be influenced by many factors. This chemical problem becomes a public health concern because it poses a risk to the patient.

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3

Ahmad, Rasheed, Shaista Begum, Eric M. V. Hoek, Tanju Karanfil, Esra Ates Genceli, Abhishek Yadav, Paras Trivedi, and Chunlong Carl Zhang. "Physico-Chemical Processes." Water Environment Research 76, no. 6 (September 2004): 823–1002. http://dx.doi.org/10.2175/106143004x142013.

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4

Ahmad, Rasheed, Shaista Begum, Chunlong Carl Zhang, Tanju Karanfil, Esra Ates Genceli, Abhishek Yadav, and Sirajuddin Ahmed. "Physico-Chemical Processes." Water Environment Research 77, no. 6 (September 2005): 982–1156. http://dx.doi.org/10.2175/106143005x54371.

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5

Karanfil, Tanju, Abhishek Yadav, Chunlong Carl Zhang, Suman Ghosh, and Sirajuddin Ahmed. "Physico-Chemical Processes." Water Environment Research 78, no. 10 (September 2006): 1193–260. http://dx.doi.org/10.2175/106143006x119198.

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6

Grenoble, Zlata, Chunlong Carl Zhang, Sirajuddin Ahmed, Stuart B. Jeffcoat, Tanju Karanfil, Meric Selbes, Sehnaz Sule Kaplan, Shaista Begum, and Rasheed Ahmad. "Physico-Chemical Processes." Water Environment Research 79, no. 10 (September 2007): 1228–96. http://dx.doi.org/10.2175/106143007x218395.

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7

Ahmad, Rasheed, Chunlong Carl Zhang, Sirajuddin Ahmed, Tanju Karanfil, Sehnaz Sule Kaplan, Meric Selbes, and Shaista Begum. "Physico-Chemical Processes." Water Environment Research 80, no. 10 (October 2008): 978–1035. http://dx.doi.org/10.2175/106143008x328554.

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8

Chelme-Ayala, Pamela, Atefeh Afzal, Parastoo Pourrezaei, Yingnan Wang, Mario A. Zapata, Ning Ding, Jing Jin, Nan Wang, Przemyslaw Drzewicz, and Mohamed Gamal El-Din. "Physico-Chemical Processes." Water Environment Research 81, no. 10 (September 10, 2009): 1056–126. http://dx.doi.org/10.2175/106143009x12445568399451.

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9

Pourrezaei, Parastoo, Atefeh Afzal, Ning Ding, Md Shahinoor Islam, Ahmed Moustafa, Przemys ł. Aw Drzewicz, Pamela Chelme-Ayala, and Mohamed Gamal El-Din. "Physico-Chemical Processes." Water Environment Research 82, no. 10 (January 1, 2010): 997–1072. http://dx.doi.org/10.2175/106143010x12756668800852.

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10

Afzal, Atefeh, Parastoo Pourrezaei, Ning Ding, Ahmed Moustafa, Geelsu Hwang, Przemyslaw Drzewicz, Eun-Sik Kim, et al. "Physico-Chemical Processes." Water Environment Research 83, no. 10 (January 1, 2011): 994–1091. http://dx.doi.org/10.2175/106143011x13075599869173.

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11

Chelme-Ayala, Pamela, Atefeh Afzal, Ning Ding, Ahmed M. A. Moustafa, Parastoo Pourrezaei, Alla Alpatova, Przemysław Drzewicz, et al. "Physico-Chemical Processes." Water Environment Research 84, no. 10 (October 1, 2012): 971–1028. http://dx.doi.org/10.2175/106143012x13407275694752.

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12

Hua, Bin, John Yang, John Lester, and Baolin Deng. "Physico-Chemical Processes." Water Environment Research 85, no. 10 (October 1, 2013): 963–91. http://dx.doi.org/10.2175/106143013x13698672321823.

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13

Hua, Bin, Huixin Xiong, Zhengyang Wang, John Yang, Shichen Zhang, Zhongzhen Wang, and Baolin Deng. "Physico-Chemical Processes." Water Environment Research 86, no. 10 (October 1, 2014): 992–1025. http://dx.doi.org/10.2175/106143014x14031280667453.

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14

Hua, Bin, Huixin Xiong, Guocheng Zhu, Lei Wang, Sen Yan, John Yang, and Baolin Deng. "Physico-Chemical Processes." Water Environment Research 88, no. 10 (October 1, 2016): 966–1000. http://dx.doi.org/10.2175/106143016x14696400494452.

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15

Hua, Bin, Huixin Xiong, Mohammed Kadhom, Lei Wang, Guocheng Zhu, John Yang, Gary Cunningham, and Baolin Deng. "Physico-Chemical Processes." Water Environment Research 89, no. 10 (October 1, 2017): 974–1028. http://dx.doi.org/10.2175/106143017x15023776270214.

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16

Xue, Jinkai, Bing Guo, and Zhanyang Gong. "Physico-Chemical Processes." Water Environment Research 90, no. 10 (October 1, 2018): 1392–438. http://dx.doi.org/10.2175/106143018x15289915807263.

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17

Ouyang, Weihang, Tianhao Chen, Yihao Shi, Liangyu Tong, Yangyu Chen, Weiwen Wang, Jiajun Yang, and Jinkai Xue. "Physico‐chemical processes." Water Environment Research 91, no. 10 (September 22, 2019): 1350–77. http://dx.doi.org/10.1002/wer.1231.

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18

Yu, Xiaoxuan, Yao Tang, Jian Pan, Lin Shen, Afruza Begum, Zhanyang Gong, and Jinkai Xue. "Physico‐chemical processes." Water Environment Research 92, no. 10 (August 29, 2020): 1751–69. http://dx.doi.org/10.1002/wer.1430.

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19

Hua, Bin, Huixin Xiong, Zhengyang Wang, Jonathan Hill, Samuel Buckler, Shuang Gao, John Yang, and Baolin Deng. "Physico-Chemical Processes." Water Environment Research 87, no. 10 (October 2015): 912–45. http://dx.doi.org/10.1002/j.1554-7531.2015.tb00241.x.

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20

Malikova, N. N., N. I. Ali-zade, and T. M. Nagiev. "PHYSICO-CHEMICAL FEATURES OF CATALASE BIOMIMETIC SENSORS." Azerbaijan Chemical Journal, no. 4 (December 12, 2020): 65–68. http://dx.doi.org/10.32737/0005-2531-2020-4-65-68.

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The physicochemical features of biomimetic sensor have been studied, using various materials as a transducer. It is shown that biomimetic sensor prepared on the basis of a smart material and semiconductors had a number of technological advantages. It was found that among the selected various materials, the biomimetic sensor prepared from the smart material TPhPFe3+OH/Al2O3 and the semiconductor Si proved to be the most effective. The developed biomimetic sensor is differed by high activity, sensitivity, stability and reproducibility with the possibility of expanding the range of detectable trace concentration of H2O2 in aqueous solutions to 10-6 mass %

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21

SUND, CHRISTINA. "Physico-Chemical Processing Options." Hazardous Waste and Hazardous Materials 3, no. 2 (January 1986): 183–94. http://dx.doi.org/10.1089/hwm.1986.3.183.

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22

J.O, Alagbe, Adedeji M.O, Habiba Z, Nwosu Gloria, and Dabara Comfort Wyedia. "Physico-Chemical Properties of Indigofera Zollingeriana Seed Oil." Biomedical Research and Clinical Reviews 6, no. 2 (January 24, 2022): 01–03. http://dx.doi.org/10.31579/2692-9406/099.

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The objective of the present study is to examine the physico-chemical properties of Indigofera zollingeriana seed oil. Physico-chemical parameters of oils are important in the determination of edibility and other industrial applications. All the laboratory analysis were carried out using standard procedures according to AOAC (2000). The acid value, peroxide value, iodine value, saponfication value, refractive index and free fatty acids of cold pressed Indigofera zollingeriana seed oil was found to be 17.11 mg NaOH/g, 23.04 meq/kg, 180.4 gI2/100g, 118.7 mg/KOH/g and 14.10 %. The refractive index (20oC) and specific gravity (25oC) was 2.01 and 1.02 respectively. The extracted oil was Indigo in colour at liquid state. It was concluded the oil has a high acid value, peroxide value and free fatty acid which favours the use of the oil for industrial use such as soap production and cosmetics.

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23

Ahmadov, E. J. "PHYSICO-CHEMICAL INTERACTION IN THE BiSI–BiTeI SYSTEM." Azerbaijan Chemical Journal, no. 1 (March 12, 2020): 36–40. http://dx.doi.org/10.32737/0005-2531-2020-1-36-40.

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Ahmadov, E. J. "PHYSICO-CHEMICAL INTERACTION IN THE SbTeI−Bi2Te3 SYSTEM." Azerbaijan Chemical Journal, no. 3 (October 2, 2020): 46–49. http://dx.doi.org/10.32737/0005-2531-2020-3-46-49.

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25

Morita, Masatoshi, and Junichi Terasawa. "Physico Chemical Properties of Pesticides." Japan journal of water pollution research 14, no. 2 (1991): 75–78. http://dx.doi.org/10.2965/jswe1978.14.75.

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26

Altunina, L. K., and V. A. Kuvshinov. "EOR Technologies: Physico-Chemical Aspects." Eurasian Chemico-Technological Journal 3, no. 3 (July 5, 2017): 179. http://dx.doi.org/10.18321/ectj563.

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<p>The application of self-regulating oil-displacing systems is considered to be a promising trend in the development of physico-chemical EOR methods. Technologies intended to increase conformance predominate. EOR technologies, where heat energy of the formation is used to generate alkaline buffer systems, CO<sub>2</sub> and gels increasing oil displacement and conformance, have wide potentialities. Such methods have been realized in the technologies developed at the Institute of Petroleum Chemistry SB RAS (IPC). Hydrolysis, hydrolytic polycondensation and coagulation in the system carbamide – aluminum salt – surfactant – water is the physico-chemical base for the technologies involving alkaline buffer systems, CO<sub>2</sub> and inorganic gels. To prepare thermoreversible polymer gels one uses change of phase from solution to gel in the system: cellulose ether with a lower critical dissolution point – water. Presented are the results obtained on the application of physico-chemical EOR methods and technologies developed at IPC in oil fields of Russia. The technologies proved to be economically effective and environmentally safe. The period of payback is 5-12 months.</p>

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27

Odin, Gilles S., Bruno Galbrun, and Maurice Renard. "Physico-Chemical tools inJurassic stratigraphy." Geobios 27 (December 1994): 507–18. http://dx.doi.org/10.1016/s0016-6995(94)80216-5.

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28

Eltekova, N. A., and Yu A. Eltekov. "Physico-chemical applications of HPLC." Chromatographia 27, no. 11-12 (June 1989): 633–38. http://dx.doi.org/10.1007/bf02258994.

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29

Miyamoto, Etsuko, Susumu Kawashima, Yoshifumi Murata, Yutaka Yamada, Yoko Demizu, Hitoshi Kontani, and Takeshi Sakai. "Physico-chemical properties of oxybutynin." Analyst 119, no. 7 (1994): 1489. http://dx.doi.org/10.1039/an9941901489.

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30

Sharma, N., and T. Sinderpal. "Sterculia Gum: Chemical Structure, Composition and Physico-Chemical Properties." Asian Journal of Chemistry 32, no. 1 (November 18, 2019): 1–8. http://dx.doi.org/10.14233/ajchem.2020.22283.

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Physico-chemical properties are crucial characteristics of hydrocolloids as they decide the applicability of them. Rheology of system, flow behaviour and mechanical properties make hydrocolloids suitable for food industry. Modification of consistency or texture properties of functional polymers also controls their sensory characteristics, thereby they become significant essences such as thickener, gelling agents, foaming agent, texture modifier, viscosifier, emulsifier, stabilizer and binder. Industrial and pharmaceutical applications are also controlled by some suitable physico-chemical properties of hydrocolloids. The polysaccharide gum exudates constitute a architecturally distinct class of complex biomacromolecules having unique physico-chemical properties. Due to their good bio/tissue compatibility, non-toxicity, they are extensively used in the field of tissue engineering, drug delivery and wound healing. Chemical and molecular architecture of hydrocolloids in turn controls their physico-chemical and functional properties. Sterculia gum is a substituted rhamnogalacturonoglycan (pectic) type exudate gum used as suspending agent, gelling agents, emulsifier, bulk laxative, dental adhesive, drug delivery agent and wound healing agent. It exhibits high water retention capacity, high viscosity and least solubility. Solutions of sterculia gum are viscoelastic and thixotropic. Sterculia gum has been recommended as effective wound dressing material as it can form a intensely adhesive gel when dispersed in minimum ammount of water. Owing to wide applications and distinctive properties of sterculia gum, present work is an endeavor to summarize the molecular organization, chemical configuration and physico-chemical properties of sterculia gum and the factors affecting physico-chemical properties of sterculia gum.

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31

Mammadli, P. R. "PHYSICO-CHEMICAL INTERACTION OF THE COPPER AND ANTIMONY IODIDES." Azerbaijan Chemical Journal, no. 1 (April 9, 2021): 43–47. http://dx.doi.org/10.32737/0005-2531-2021-1-43-47.

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The character of the mutual interaction of the components in the CuI-SbI3 system was studied by differential thermal analysis and X-ray phase analysis methods and its phase diagram was constructed. It was found that the system is quasi-binary and forms a monotectic phase diagram. The immiscibility region covers ~15-93 mol% SbI3 concentration interval at the monotectic equilibrium temperature (~ 4930С). The temperatures of polymorphic transformations of the CuI compound in the system drop slightly and these phase transitions take place by metatectic reactions

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32

S. S. Patil, S. S. Patil, and I. B. Ghorade I. B. Ghorade. "Physico-Chemical Assessment of Kham River at Aurangabad, (Maharashtra)." Indian Journal of Applied Research 3, no. 3 (October 1, 2011): 153–55. http://dx.doi.org/10.15373/2249555x/mar2013/48.

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33

Orlovskyi, Vitalii, Myroslav Malovanyy, Volodymyr Biletskyi, and Mykola Sokur. "Physico-Chemical Peculiarities of Weighted Thermostable Plugging Materials Hydration." Chemistry & Chemical Technology 15, no. 4 (November 25, 2021): 599–607. http://dx.doi.org/10.23939/chcht15.04.599.

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A new competitive class of plugging compositions (weighted non-shrink plugging materials) has been created using as components a fly ash from thermal power station, a weighting additive and a superplasticizer. X-ray phase analysis identified the composition of new materials formed in the hydration process of the developed plugging compositions. The kinetic curves of the plugging material expansion in a wide temperature range have been obtained. Rational temperature regimes of plugging materials hardening according to the criteria of strength and gas permeability of cement stone have been determined.

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34

Sviderskyi, Valentyn, and Taras Karavayev. "Composition and Physico-Chemical Properties of Ukrainian Kaolins Surface." Chemistry & Chemical Technology 7, no. 2 (June 10, 2013): 197–203. http://dx.doi.org/10.23939/chcht07.02.197.

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35

Khokhlov, Andriy, Volodymyr Strelko, and Liudmyla Khokhlova. "Physico-Chemical Features of Bioactive Carbon Sorbents for Oil." Chemistry & Chemical Technology 12, no. 3 (September 15, 2018): 337–40. http://dx.doi.org/10.23939/chcht12.03.337.

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36

L, Negi. "Physico-Chemical Analysis of Murchita and Amurchita Shadanga Ghrita." Journal of Natural & Ayurvedic Medicine 7, no. 4 (October 5, 2023): 1–5. http://dx.doi.org/10.23880/jonam-16000415.

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Background: Contagious diseases are the most common cause of death globally and Atisaar is one of them. More than 1 billion cases and at least 4 million deaths per year are attributed to diarrhoea worldwide. Ayurvedic literature has numerous uninvestigated medicines, Shadanga Ghrita is one of those classical herbal formulations used in the management of Atisaar, mentioned in the famous text Chakradatta. Preparation of this oleaginous dosage form is described as Sneha Kalpana, done by subjecting Ghrita to a particular pattern of heat-treated with 1/4th part Kalka (paste) and 4th part of Kwatha (decoction) of the respective drugs in equal proportion. Till date, no research work has been done on the study of Shadanga Ghrita. So the present study was planned to evaluate the Physio-Chemical analysis of Shadanga Ghrita with and without Murchana. Aim and Objective: Aim was to prepare the sample of Shadanga Ghrita with & without Murchana and to evaluate both the formulations through pharmaceutical and analytical parameters. Material and Methods: Murchana of Ghrita was done as per Bhaishajya Ratnavali Jwara-rogadhikaar & Shadanga Ghrita was prepared as per Sharangdhar Samhita. Result: All the Physico-chemical parameters of both the samples are within the reference range Conclusion: Murchita Shadanga Ghrita is better than Amurchita Shadanga Ghrita due to better taste, odor, low viscosity, high saponification & high peroxide value.

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37

Lahaye, Marc, and Cyrille Rochas. "Chemical structure and physico-chemical properties of agar." Hydrobiologia 221, no. 1 (August 1991): 137–48. http://dx.doi.org/10.1007/bf00028370.

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38

Tabekha, M., M. Domah, N. El-Boraeey, H. Hamed, and Saadia Metwally. "PHYSICO-CHEMICAL AND TECHNOLOGICAL STUDIES ON PERSIMMON FRUITS: 1- PHYSICO-CHEMICAL STUDIES ON PERSIMMON FRUITS." Journal of Food and Dairy Sciences 32, no. 4 (April 1, 2021): 2691–97. http://dx.doi.org/10.21608/jfds.2021.200245.

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39

Beqaj, Blerina. "Evaluation of Water Quality Parameters for Narta Lagoon." European Journal of Engineering and Technology Research 8, no. 1 (January 19, 2023): 41–45. http://dx.doi.org/10.24018/ejeng.2023.8.1.2945.

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The coastal area of Albania is characterized by specific constructions, parts of which are the coastal wetlands and its lagooning. Lagoons are very specific bodies of water that acquire an interesting status along with the indisputable values they have. The value of knowing the physico-chemical properties of the water of the Narta Lagoon is related to many processes that occur within the lagoon and in the environments around it. The study was carried out on the Narta Lagoon to identify the chemical and physical characteristics of the water. For the determination of the physico-chemical properties, a certain methodology has been followed, which includes the establishment of a network of five stations for sampling the water of the lagoon and the determination of the level of certain physico-chemical parameters. The physico-chemical parameters that were determined are: temperature (T), pH, dissolved oxygen (O2), BOD5, S%, Cl-, ECw, NH4+, NO2-, P-PO43-, hardness. The most pronounced differences of the physico-chemical levels are those that belong to the data of the south-east station. According to the level of different components for all the stations, a degree of homogeneity in the physico-chemical composition is observed. Only the physico-chemical feature of the water at south-eastern part of the lagoon makes a difference, which is related to the influence of the urban discharge channel of the city of Vlora. The physico-chemical parameters that interpret pollution such as: dissolved oxygen (O2), BOD5, NH4+, NO2-, NO3-, PO43-, hardness is higher than in other stations of the lagoon.

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40

Liu, Runhong, Yuanfang Pan, Han Bao, Shichu Liang, Yong Jiang, Hongrun Tu, Juanli Nong, and Wanqing Huang. "Variations in Soil Physico-Chemical Properties along Slope Position Gradient in Secondary Vegetation of the Hilly Region, Guilin, Southwest China." Sustainability 12, no. 4 (February 11, 2020): 1303. http://dx.doi.org/10.3390/su12041303.

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Understanding the variation of soil physico-chemical properties along slope position gradients is essential for vegetation restoration and reconstruction, but how slope positions impact the soil physico-chemical properties in the secondary vegetation of hilly regions is poorly understood. To address these uncertainties, we examined the changes in soil physico-chemical properties and their relationships along the slope position gradient in secondary vegetation of the hilly region in Guilin, southwest China. The results showed that except for the soil water content, soil total phosphorus and soil total potassium which reached the highest value at the footslope, other soil physico-chemical properties reached the highest content in the middle slope, and most of the soil physico-chemical properties showed the lowest content in the upper slope or footslope. Moreover, Pearson’s correlation analysis revealed that there were no significant correlations between most of the soil physico-chemical properties and that the correlations between soil physico-chemical properties were not consistent across different slope positions. Additionally, the principal component analysis showed that the first 4 principal components together explained 84.32% of the total variation and might be interpreted as the change of soil total nitrogen, soil organic matter, soil available nitrogen, soil available potassium, soil water content and soil total potassium. Overall, our results strongly demonstrated that slope positions showed significant effects on most of the soil physico-chemical properties and would provide an important reference for the formulation of restoration strategies in different slope positions to facilitate vegetation restoration and reconstruction and the sustainable development of the ecological environment in the hilly region.

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41

Patil S.S, Patil S. S., Gandhe H. D. Gandhe H.D, and Ghorade I. B. Ghorade I.B. "Physico-Chemical Assessment of Groundwater Quality of Ahmednagar Industrial Area." Indian Journal of Applied Research 4, no. 4 (October 1, 2011): 228–30. http://dx.doi.org/10.15373/2249555x/apr2014/70.

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42

Lee, Kwang-Seok, Seul-Ki Jo, Doyun Shin, Soo-Bock Jeong, Jae-Chun Lee, and Byung-Su Kim. "Upgrading of Iron from Waste Copper Slag by A Physico-chemical Separation Process." Journal of the Korean Institute of Resources Recycling 23, no. 3 (June 30, 2014): 30–36. http://dx.doi.org/10.7844/kirr.2014.23.3.30.

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43

Kocherginsky, Nikolai, and Martin Gruebele. "Thermodiffusion: The physico-chemical mechanics view." Journal of Chemical Physics 154, no. 2 (January 14, 2021): 024112. http://dx.doi.org/10.1063/5.0028674.

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44

Espinoza-Ortega, Angelica, and Eric Montes de Oca Flores. "Physico-chemical characterization of botanero cheese." Indian Journal of Dairy Science 73, no. 6 (December 27, 2020): 535–41. http://dx.doi.org/10.33785/ijds.2020.v73i06.004.

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45

Babic-Ivancic, Vesna, and Maja Dutour-Sikiric. "Physico-chemical properties of calcium phosphates." Serbian Dental Journal 59, no. 1 (2012): 7–21. http://dx.doi.org/10.2298/sgs1201007b.

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Calcium phosphates have important role in biological and pathological mineralization. While only one of calcium phosphates, carbonate apatite, represents the main mineral component of teeth and bones, octacalcium phosphate, calcium hydrogenphosphate dihydrate and beta-tricalcium phosphate occur in pathological deposits. From the stand-point of chemists, processes of biological and pathological mineralization could be considered as deposition of inorganic phase within organic matrix, i.e. formation of inorganic-organic composites. Although this approach is very simplified at first glance, it allows clarification of important issues related to biomineralization (e.g. what is the role of individual components of organic matrix in the emerging solid tissue), and design and preparation of new materials for hard tissue regeneration (e.g. process of transformation after implantation). The importance of investigation about calcium phosphates will be presented through the overview of basic physico-chemical reactions related to the formation and transformation of biologically relevant calcium phosphates and their interaction with various organic additives in the laboratory.

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46

Balau, Luminita, Gabriela Lisa, M. Popa, V. Tura, and V. Melnig. "Physico-chemical properties of Chitosan films." Open Chemistry 2, no. 4 (December 1, 2004): 638–47. http://dx.doi.org/10.2478/bf02482727.

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AbstractChitosan films obtained by dry phase inversion were prepared from an aqueous solution of chitosan in acetic acid. The films, of thickness less than 20 μm, were transparent, very flexible and had smooth surfaces. Increasing the film thickness induced an increase of the internal tensions and the consequent formation of a rough surface. Structural investigations by X-ray diffraction and Fourier transform IR analysis, showed that the chitosan films, as prepared, are amorphous. Further annealing to evaporate acetic acid and water traces, changed the amorphous phase into a more ordered phase, characterized by diffraction peaks at 2θ values of 9, 17, 20 and 23 degrees. Thermal investigations by TG, DTG, and DTA revealed that the decomposition of the chitosan films as prepared proceeds in two stages, starting from 180°C and 540°C.

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47

Raut, Rosha, Subodh Sharma, Rosha M. Bajracharya, Chhatra Mani Sharma, and Smriti Gurung. "Physico-chemical Characterization of Gosainkunda Lake." Nepal Journal of Science and Technology 13, no. 1 (January 21, 2013): 107–14. http://dx.doi.org/10.3126/njst.v13i1.7449.

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High altitude lakes are very sensitive to climate change due to their small catchment area, limited vegetation cover, surface water with low nutrients, and thin soil and low bedrock weathering rates. The present study was focused on high altitude Himalayan Lake Gosainkunda, situated at an elevation of 4300 m in the Langtang National Park, and carried out during the post- monsoon season (October) in 2010. The main aim of the study was to assess the water quality quantitatively considering the anthropogenic as well as natural impacts in the lake. The water samples were collected at six different sites to represent entirely the quality of the lake. The sampling sites were systematically designated as the inlet, outlet, human influence site, littoral zone, middle (central) and the deepest part of the lake. Some major cations (Ca++, Mg++, Na+ & K+) and anions (Cl-, SO4 — & HCO3 -) were analyzed; the cation type is dominated by Ca++ (64%) while the anions are dominated by Cl- (49%). Among the trace elements (Al, Fe, Mn, Zn, Cu, Cd, Cr, Ni, Pb & As), except for Al and Fe, all others were found below the detection limit. Nepal Journal of Science and Technology Vol. 13, No. 1 (2012) 107-114 DOI: http://dx.doi.org/10.3126/njst.v13i1.7449

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Negi, Deepti, Anoop Kumar Singh, Vipin Kumar, and Shweta G. Shukla. "PHYSICO-CHEMICAL ANALYSIS OF MALTYADI TAIL." International Ayurvedic Medical Journal p5, no. 02 (January 28, 2021): 2663–70. http://dx.doi.org/10.46607/iamj03p5022021.

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Having a healthy and flake free scalp is a great part of hair health. Dandruff can be a very common aliment to reduce our scalp health. If ones want to take care of his/her hair and scalp, oiling is the best thing. Herbal oils are now-a-days widely used by the people because less or no side effects. The present work was aimed to formulate Maltyadi Tail oil for antidandruff purpose (application in Hair and scalp) and was evaluated analytical study. The organoleptic parameters are appearance, color, touch and odor. The physicochemical parameters are Solubility test, Viscosity test, pH, Acid value, Peroxide value, Iodine value, Saponification value, Volatile matter, Ester value, TLC and Test for heavy / toxic metals. The result of the study showed that Maltyadi Tail fulfills all the criteria for ideal hair oil.

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Ratnakar, Hinatai Maniklal, and Neelu Jain. "Physico-Chemical Characteristics of Industrial Waste." RESEARCH REVIEW International Journal of Multidisciplinary 6, no. 10 (October 13, 2021): 52–55. http://dx.doi.org/10.31305/rrijm.2021.v06.i10.009.

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IKAZAKI, Fumikazu. "On Physico-Chemical Phase in Comminution." Journal of the Society of Powder Technology, Japan 29, no. 10 (1992): 772–81. http://dx.doi.org/10.4164/sptj.29.772.

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