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Journal articles on the topic 'Physico-chemical analysis. eng'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Merzougui, Fatima Zahra, Ahmed Makhloufi, and Touhami Merzougui. "Hydro-chemical and microbiological characterization of Lower Cretaceous waters in a semi-arid zone Beni-Ounif syncline, South-West of Algeria." Journal of Water and Land Development 40, no. 1 (2019): 67–80. http://dx.doi.org/10.2478/jwld-2019-0007.

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Abstract The article analyses the water quality of the Lower Cretaceous aquifer in the Beni-Ounif syncline. To this end, 42 samples were taken for physico-chemical analysis and 28 for microbiological analysis in March, May and October 2017 from 14 sampling points. The results of physico-chemical analysis were processed by multi-variety statistical analysis methods: principal component analysis (PCA) and hierarchical cluster analysis (HCA) coupled to hydro chemical methods: Piper diagram. The PCA allowed us to explore the connections between physico-chemical parameters and similarities between

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Priyanka, Kuna, R. C. Chandni, Amar Sankar, and A. V. Raghu. "EFFECT OF SOLAR DEHYDRATION METHOD ON PHYSICO-CHEMICAL AND SENSORY CHARACTERISTICS OF GREEN BEANS (PHASEOLUS VULGARIS)." International Journal of Research -GRANTHAALAYAH 5, no. 4RAST (2017): 39–44. http://dx.doi.org/10.29121/granthaalayah.v5.i4rast.2017.3300.

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Studies were done by different chemical treatments under solar dehydration of Green beans. The Green beans were treated by five different methods which are mentioned and the end product was underwent analysis for physico-chemical characteristics, nutritional characteristics, microbial analysis and sensory evaluation. Five treatments of different proportions with Magnesium chloride, Sodium chloride, Sodium bicarbonate and Magnesium oxide were done for solar dehydration of Green beans and (0.1% Magnesium chloride and 0.1% Sodium bicarbonate) treated Green beans were found to be good in all chara

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Ten Cate, J. M. "In Situ Models, Physico-Chemical Aspects." Advances in Dental Research 8, no. 2 (1994): 125–33. http://dx.doi.org/10.1177/08959374940080020201.

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In situ (intra-oral) caries models are used for two purposes. First, they provide information about oral physiological processes. Such information helps to detail our knowledge of the oral ecosystem and to verify conclusions from in vitro experiments. Second, in situ models are utilized to test preventive agents in the phase between laboratory testing and clinical trials. Most investigations involving enamel inserts have been aimed at testing new dentifrices. The experimental designs of such studies usually do not allow one to draw conclusions on physico-chemical processes, e.g., because of si

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Riekkola, M. L., J. Å. Jönsson, and R. M. Smith. "Terminology for analytical capillary electromigration techniques (IUPAC Recommendations 2003)." Pure and Applied Chemistry 76, no. 2 (2004): 443–51. http://dx.doi.org/10.1351/pac200476020443.

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This paper presents terms and definitions for capillary electromigration techniques for separation, qualitative and quantitative analysis and physico-chemical characterization. Names and descriptions for such techniques (e.g., capillary electrophoresis and capillary electrochromatography) as well as terms for the phenomenon of electroosmotic flow are included.

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Paul, A., A. A. Kodentsov, and F. J. J. van Loo. "Physico-chemical analysis of compound growth in a diffusion couple with two-phase end-members." Intermetallics 14, no. 12 (2006): 1428–32. http://dx.doi.org/10.1016/j.intermet.2006.01.051.

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Stachowicz, M., B. Opyd, K. Granat, and K. Markuszewska. "Effect of Electrical Properties of Materials on Effectiveness of Heating Their Systems in Microwave Field." Archives of Foundry Engineering 14, no. 2 (2014): 111–14. http://dx.doi.org/10.2478/afe-2014-0047.

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Abstract In the paper presented are results of a research on influence of electrical and physico-chemical properties of materials being parts of multicomponent and multimaterial systems used in foundry practice on efficiency and effectiveness of microwave heating. Effectiveness of the process was evaluated on the grounds of analysis of interaction between selected parameters of permittivity and loss factor, as well as collective index of energy absorbed, reflected and transmitted by these materials. In the examinations used was a stand of waveguide resonance cavity for determining electrical p

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Vranić, Edina, Odon Planinšek, Andrijana Tivadar, Sabira Hadžović, and Stanko Srčič. "Physico-Chemical Characterisation Of Different Clindamycin Phosphate Samples." Bosnian Journal of Basic Medical Sciences 7, no. 2 (2007): 182–89. http://dx.doi.org/10.17305/bjbms.2007.3078.

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For the majority of the pharmaceutical dosage forms, the substances that are used maintain solid state under the standard storage conditions, i.e. powders. The interactions of pharmaceutical powders (active ingredient(s) and excipients) with liquids and vapors (particularly aqueous solutions and their vapors) occur almost always during the production process. From the physical point of view, the interactions among individual components may differ from the expected because chemically identical substances obtained from different producers vary very much. These differences influence either the pr

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Łęczycki, Krzysztof. "Analysis of Premature Wear-Out of Aircraft Gun Barrel by Applying a Transmission Electron Microscopy (TEM)." Aviation Advances & Maintenance 40, no. 1 (2017): 67–107. http://dx.doi.org/10.1515/afit-2017-0003.

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Abstract Firing from gun armament generates a wide range of physico-chemical phenomena contributing to the degradation of barrel material, e.g. pressure, high temperature, chemically aggressive character of post-detonation gases and friction of a driving band. In this work the technique of thin foils was used in Transmission Electron Microscopy (TEM) to study the influence of physicochemical phenomena on the material microstructure of aircraft gun barrel. A mechanism and reason of premature wear-out of the barrel under consideration was also outlined by utilising light microscopy and hardness

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Bouba, Hassane, Moussa Issaka Abdoulkader, Dadisoumaila Mamane-Nasser, Abdourhamane Toure Amadou, and Zibo Garba. "INFLUENCE OF THE RAINY SEASON ON THE PHYSICO-CHEMICAL QUALITY OF THE WATERS OF GUIDIMOUNI (EASTERN NIGER)." International Journal of Advanced Research 8, no. 12 (2020): 474–82. http://dx.doi.org/10.21474/ijar01/12172.

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In the eastern part of Niger, which is arid to semi-arid, market gardening production systems are based on temporary, semi-permanent to permanent basins or ponds and lakes. In Guidimouni, in the Damagaram, the market gardening production system is associated with two permanent lakes, located side by side. The objective of the present study was to analyse the seasonal physico-chemical variations and the aptitudes for using the waters of the Guidimouni lakes. Three water sampling campaigns were carried out. The chemical analyses of the samples thus taken were carried out in the laboratory. The p

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Reddy, R. Mallikarjuna, Srikanth A, Sofia Kouser, et al. "Pharmacological Evaluation of the Impact of Fluoride-Contaminated Drinking Water on Brain Cognitive Function and Bone Health in Nalgonda and Warangal Rural Districts of Telangana in India." International Journal of Pharmaceutical Sciences and Nanotechnology 13, no. 4 (2020): 5036–46. http://dx.doi.org/10.37285/ijpsn.2020.13.4.10.

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A systematic groundwater analysis was carried out in six villages of Narsampet in Warangal district and two villages of Narketpally in Nalgonda district of Telangana in India. These water samples were collected from respective areas and evaluated under four different categories viz. physico-chemical parameters (such as pH, Electric Conductivity (EC), Total Dissolved Solids (TDS), Turbidity, Alkalinity, Hardness, Chloride, Nitrates, Sulphates, Fluoride, Iron content) as per standard methods, behavioral changes i.e. measurement of learning and memory ability of rats (Rectangular maze, Morris wat

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Rasoazanakolona, Voahanginirina, Brunilde Beltoisone Rabealaina, Alice Andrianjaka, Xavier Rakotonjanahary, Rajbir S. Sangwan, and Noronirina Victorine Rakotoarisoa. "Evaluation of Grain Quality and Nutritional Quality of Double Haploid DHP6, An Elite Rice Line in Madagascar." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 70, no. 6 (2016): 378–83. http://dx.doi.org/10.1515/prolas-2016-0055.

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Abstract Anther/pollen culture technology is being efficiently used for accelerating rice breeding progress and improving grain quality characters. Using pollen culture technique, we obtained elite rice (Oryza sativa L.) line DHP6, which is well adapted to the highlands of Madagascar. Here we show that certain grain, nutritional, and culinary quality characteristics have been significantly improved in line DHP6. Morphometric and physico-chemical analysis demonstrated that physical (colour, transluscency, and chalkiness), chemical (amylose content, alkali spreading value, and gel consistency) a

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Zupančič, Marija, and Nataša Čelan Korošin. "Physico-Chemical Properties of the Pyrolytic Residue Obtained by Different Treatment Conditions of Meat and Bone Meal." Acta Chimica Slovenica 68, no. 1 (2021): 229–38. http://dx.doi.org/10.17344/acsi.2020.6419.

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The depletion of phosphate rock reserves has led to the search for new, alternative and environmentally friendly products and processes. One of the safe and environmentally friendly sources of phosphate is animal bone char (ABC), the residue from the pyrolysis of meat and bone meal (MBM), a slaughterhouse waste material. The presented study investigated the physico-chemical properties of the residues (ABC) obtained from the pyrolysis of MBM under different treatment conditions. Two different end temperatures (600 °C and 1000 °C) and five different heating rates (5 °C min−1, 10 °C min−1, 20 °C

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Dhary Kamel, Maryam, Abbas Abdullah Mohammed, and Ali Abdulhafidh Ibrahim. "Sequence and Structure Analysis of CRP of Lung and Breast Cancer Using Bioinformatics Tools and Techniques." Biosciences, Biotechnology Research Asia 15, no. 1 (2018): 163–74. http://dx.doi.org/10.13005/bbra/2620.

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In the present study, bioinformatics approach has been adopted to explore the sequences and structures analysis of CRP of lung and breast cancer and compares with normal sequence from NCBI. The present study was aimed to investigate the possibility of using CRP as a marker for patients with lung and breast cancer. Also the effect of mutation on the physicochemical properties and structure of CRP. 40 blood and serum samples were examined from patients with lung and breast cancer (aged between 23and 45 years old). Qualitative test was done to detect the presence of CRP in the patient’s serum. Th

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Barbour, Len. "In-situ analysis of gas-loaded porous materials." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1472. http://dx.doi.org/10.1107/s2053273314085271.

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In order to understand gas sorption processes at the molecular level it is important to correlate physico-chemical data (e.g. sorption isotherms and calorimetric analysis) with structural data. It is therefore desirable to carry out structural elucidation and calorimetric analysis under conditions that closely mimic those of the sorption/desorption experiments. However, the crystallographic analysis of samples under controlled gas environments poses significant technical challenges, particularly given the limited space associated with the sample compartment of standard commercial diffractomete

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Thambiyapillai, Selvaganapathy, and Muthuvelayudham Ramanujam. "An Experimental Investigation and Aspen HYSYS Simulation of Waste Polystyrene Catalytic Cracking Process for the Gasoline Fuel Production." International Journal of Renewable Energy Development 10, no. 4 (2021): 891–900. http://dx.doi.org/10.14710/ijred.2021.33817.

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Plastic wastes are necessary to recycle due to their disposal issues around the world. They can be recycled through various techniques i.e., mechanical reprocessing, mechanical recycling, chemical recycling and incineration. Most recycling techniques are expensive and end up in producing low-grade products excluding chemical recycling; it is an eco-friendly way to deal with plastic waste. Catalytic cracking is one of the chemical recycling methods, for converting waste plastics into liquid fuel same as commercial fuels. An experimental investigation of polystyrene catalytic cracking process wa

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Gackowski, Marcin, Marcin Koba, Robert Pluskota, Emilia Daghir-Wojtkowiak, Paulina Szatkowska-Wandas, and Stefan Kruszewski. "Pharmacological classification of anticancer drugs applying chromatographic retention data and chemometric analysis." Chemical Papers 75, no. 1 (2020): 265–78. http://dx.doi.org/10.1007/s11696-020-01301-3.

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AbstractThe combination of chromatography and chemometrics has been introduced in order to provide information about drug analytes, biological macromolecules, the stationary phase, whose properties are related to molecular pharmacology and rational drug design. In this work a pharmacological classification was made in order to find strategy for predicting an activity of anticancer drugs. Principal Component Analysis (PCA) method has been employed to build some relationship models between the following: lipophilicity parameters of selected antitumor drugs obtained by chromatographic analysis, s

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Knapczyk, Adrian, Sławomir Francik, Marcin Jewiarz, Agnieszka Zawiślak, and Renata Francik. "Thermal Treatment of Biomass: A Bibliometric Analysis—The Torrefaction Case." Energies 14, no. 1 (2020): 162. http://dx.doi.org/10.3390/en14010162.

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The aim of the paper was to summarize and discuss current research trends in biomass thermal treatment (torrefaction process). Quantitative analyses were carried out, in which the main countries, research units and scientists were indicated. The analysis showed a clear upward trend in number of publications after 2010. Most scientists on selected topics come from China, USA, Canada, South Korea, Republic of China, Poland (Web od Science—Core Collection (WoS-CC) and Scopus databases). Quantitative analysis also showed that the most relevant WoS-CC categories in the summary are: Energy Fuels, En

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Setiawan, Duyeh, and Titin Sri Mulyati. "PEMBUATAN DAN ANALISIS FISIKO-KIMIA RADIOISOTOP SKANDIUM-47 (47Sc) DARI BAHAN SASARAN TITANIUM OKSIDA ALAM." Jurnal Sains dan Teknologi Nuklir Indonesia 16, no. 2 (2015): 63. http://dx.doi.org/10.17146/jstni.2015.16.2.2379.

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Radioisotop skandium-47 (47Sc) memiliki waktu paruh 3,35 hari, pemancar energi beta, Eβmax 0,441 MeV (68 %) dan 0,601 MeV (32 %), serta pemancar energi gamma, Eγ 159 keV (68 %). Radioisotop 47Sc dihasilkan oleh iradiasi neutron cepat dari target titanium berdasarkan reaksi inti 47Ti (n, p) 47Sc. Metode pemisahan 47Sc menggunakan cara kromatografi kolom dengan matriks Dowex AG 50W-x4 dalam bentuk kation (H+), selanjutnya 47Sc dielusi dengan HCl 4 M. Radioisotop 47Sc digunakan dalam bidang kedokteran nuklir untuk radioterapi dengan metode pencitraan. Karakteristik fisiko-kimia suatu sediaan radi

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Jahan, KM, R. Khatun, and MZ Islam. "Effects of wastewater irrigation on soil physico-chemical properties, growth and yield of tomato." Progressive Agriculture 30, no. 4 (2020): 352–59. http://dx.doi.org/10.3329/pa.v30i4.46891.

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The wastewater reuse for the purpose of irrigation may have a significant contribution to reduce water pollution, maximize water utilization and restore nutrient content of soils. An experiment was conducted at Environmental Science Field Laboratory, Bangladesh Agricultural University, Mymensingh from January to May, 2015 to investigate the effects of wastewater irrigation on soil physico-chemical properties (Soil texture, pH, electrical conductivity (EC), organic matter (OM), nitrogen (N), phosphorous (P), potassium (K), sulphur (S) and sodium (Na)) as well as yield and yield contributing cha

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Ippolito, James A., Liqiang Cui, Claudia Kammann, et al. "Feedstock choice, pyrolysis temperature and type influence biochar characteristics: a comprehensive meta-data analysis review." Biochar 2, no. 4 (2020): 421–38. http://dx.doi.org/10.1007/s42773-020-00067-x.

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AbstractVarious studies have established that feedstock choice, pyrolysis temperature, and pyrolysis type influence final biochar physicochemical characteristics. However, overarching analyses of pre-biochar creation choices and correlations to biochar characteristics are severely lacking. Thus, the objective of this work was to help researchers, biochar-stakeholders, and practitioners make more well-informed choices in terms of how these three major parameters influence the final biochar product. Utilizing approximately 5400 peer-reviewed journal articles and over 50,800 individual data point

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Ahamad, Sageer, S. A. Ahmad, and A. Hasnat. "Synthesis and Characterization of methyl Methacrylate Modified Poly (Ester-Amide) Resins from Melia Azedarach Seed Oil as Coating Material." Material Science Research India 13, no. 1 (2016): 50–56. http://dx.doi.org/10.13005/msri/130108.

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Synthesis of polymeric materials from natural renewable resources has attracted a lot of attention of researcher throughout the world as they not only reduce the dependency on petrochemicals but also friendly to the environment. Utilization of non-traditional and non-edible vegetable oils in the synthesis of valuable polymeric materials solves the problem of waste disposal as well as bringing down the cost of end products. Melia azedrach seed oil (MASO), a non-traditional and non-edible seed oil is utilized for the synthesis of poly(ester-amide) (MAPEA) by the aminolysis with diethanolamine fo

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Guillou, Catherine, José Luis Aleixandre, Maria José García, and Victoria Lizama. "Clarification influence upon sensorial and analytical characteristics of Muscat dry wine." OENO One 32, no. 2 (1998): 111. http://dx.doi.org/10.20870/oeno-one.1998.32.2.1053.

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<p style="text-align: justify;">The influence of the clarification on the analytical and sensorial characteristics has been studied on a dry white wine of Muscat. To carry out this work, we have used dry wine of Muscat of the Valencia denomination of origin from the 1995 vintage. The clarification has been realized with four differents c1arifying agents: gelatin, blood albumin, casein and egg albumin associated with bentonite, used in two different doses: a medium doses, calculated from the lowest and highest doses recommended by the maker, and the lowest dose.</p><p style="text

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Cabral, Marta, João C. Bordado, António Correia Diogo, and Fernanda Margarido. "Characterisation of the Filter Elements of End-of-Life Biological and Chemical Protection Masks Used by the Army." Materials Science Forum 587-588 (June 2008): 778–82. http://dx.doi.org/10.4028/www.scientific.net/msf.587-588.778.

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The main purpose of the present study is to assess the usefulness of filter cartridges from end-of-life biological and chemical protection masks, for other applications (with increased added value) instead of landfill deposition. Filters with different ages up to fifty years, were dismantled and divided in their components. Physico-chemical characterisation of each filter cartridge component was performed using different techniques such as: optical microscopy, Fourier transform infrared spectroscopy, pyrolysis, particle size distribution by laser diffraction, surface area determination from th

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Chavada, Nikul B. "Study on zooplankton diversity with physicochemical parameters of Hukal River, Kodinar Gujarat, India." International Journal of Bioassays 6, no. 2 (2017): 5286. http://dx.doi.org/10.21746/ijbio.2017.02.0010.

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Plankton refers to plants and animals that drift with the ocean currents and fresh river water. they habitants in the open waters of the sea and fresh river water. Zooplankton (from Greek zoon, or animal) are Small protozoans or metazoans (e.g. crustaceans and other animals) that feed on other plankton and telonemia. Some of the eggs and larvae of larger animals, such as fish, crustaceans and annelids, are included in Zooplankton. Physico-chemical parameters are very important factors that play a significant role in river zooplankton diversity and fluctuation. We evaluated impact of Abiotic fa

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Reyaz Shah, Aunjum, Paras Sharma, Vinod Singh Gour, et al. "Antioxidant, Nutritional, Structural, Thermal and Physico-Chemical Properties of Psyllium (Plantago Ovata) Seeds." Current Research in Nutrition and Food Science Journal 8, no. 3 (2020): 727–43. http://dx.doi.org/10.12944/crnfsj.8.3.06.

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The present investigation was carried out to characterize four different types of psyllium seeds including one landrace for their nutritional, structural, antioxidant profile and biological active compounds. DSC analysis showed the highest peak temperature (TP) of 107.57 ºC in RI-89 and end set temperature (TE) of 130.2 ºC for HI-5 cultivar. FT-IR analysis displayed strong absorption bands at frequencies 960, 1380, 1740, 2280 and 3280cm-1. SEM micrographs of each cultivar showed compact and irregular mass of fiber at various magnifications. Protein, fat, ash and total carbohydrate content of p

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DADHICH, PRABHASH, BODHISATWA DAS, and SANTANU DHARA. "SINGLE STEP SINTERED CALCIUM PHOSPHATE FIBERS FROM AVIAN EGG SHELL." International Journal of Modern Physics: Conference Series 22 (January 2013): 305–12. http://dx.doi.org/10.1142/s2010194513010271.

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Different forms of calcium-phosphate (Hydoxyapatite, α-TCP, β-TCP, CDHA) minerals are found to be major component of bone tissue. Development of calcium-phosphate (CaP) based fibrous microstructures is of significant research interest worldwide owing to its improved mechanical properties and higher interconnectivity. Here we represent a method for single step sintered wet-spun Fibers of calcium phosphate from avian egg shells for biomedical applications. Raw egg shell powder was mixed with chitosan solution and Phosphoric acid. The mixture is milled in a ball mill overnight and then filtered.

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Vries, D., B. A. Wols, and P. de Voogt. "Removal efficiency calculated beforehand: QSAR enabled predictions for nanofiltration and advanced oxidation." Water Supply 13, no. 6 (2013): 1425–36. http://dx.doi.org/10.2166/ws.2013.109.

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The efficiency of water treatment systems in removing emerging (chemical) substances is often unknown. Consequently, the prediction of the removal of contaminants in the treatment and supply chain of drinking water is of great interest. By collecting and processing existing chemical properties of contaminants, QSARs (quantitative structure-activity relationships) for typical removal parameters can be constructed. Depending on the definition of the predicted endpoint, QSARs are (1) embedded in a process model suite, where they serve to predict a model parameter and the total, hybrid model predi

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Jablonický, Juraj, Mirko Simikić, Juraj Tulík, Milan Tomić, Ľubomír Hujo, and Ján Kosiba. "Monitoring of Selected Physical and Chemical Parameters of Test Oil in the Wet Disc Brake System." Acta Technologica Agriculturae 23, no. 1 (2020): 46–52. http://dx.doi.org/10.2478/ata-2020-0008.

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AbstractPaper presented is focused on the operating measurements of a tractor wet disc brake system. Operating measurements were evaluated after tractor’s operation at 500 Mth on the 3rd, 4th and 5th gear. Reference fluid and ecological fluid were tested during operation. In addition, work results include the evaluation of the fluid samples taken during the operational tests to monitor the tractor braking performance with wet disc brakes. Fluid samples were also tested in order to determine the changes in their physico-chemical properties. Chemical analysis was performed for both oil samples b

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Wu, Xin, Liheng Ren, Lin Luo, Jiachao Zhang, Lihua Zhang, and Hongli Huang. "Bacterial and Fungal Community Dynamics and Shaping Factors During Agricultural Waste Composting with Zeolite and Biochar Addition." Sustainability 12, no. 17 (2020): 7082. http://dx.doi.org/10.3390/su12177082.

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Bacterial and fungal communities play significant roles in waste biodegradation and nutrient reservation during composting. Biochar and zeolite were widely reported to directly or indirectly promote microbial growth. Therefore, the effects of zeolite and biochar on the abundance and structure of bacterial and fungal communities and their shaping factors during the composting of agricultural waste were studied. Four treatments were carried out as follows: Run A as the control without any addition, Run B with zeolite (5%), Run C with biochar (5%), and Run D with zeolite (5%) and biochar (5%), re

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Machiraju, P. V. S., and K. Jhansi Lakshmi. "Physico-Chemical, Biochemical and Heavy Metals Analysis of Subsurface Waters Near Non-Point Source for Assessing Their Quality for End User Application." Asian Journal of Chemistry 26, Supp. (2014): S153—S156. http://dx.doi.org/10.14233/ajchem.2014.19034.

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Vedernikov, Dmitriy Nikolaevich, Svetlana Vitalievna Teplyakova, and Olesya Valerievna Khoroshilova. "6-Hydroxyisocaryophyllene and isocaryophyllenic acid from birches vegetative buds." chemistry of plant raw material, no. 3 (March 26, 2018): 115–22. http://dx.doi.org/10.14258/jcprm.2018033717.

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The new isocaryophyllene derivatives were first detected in the birch vegetative buds. The structure of 6-hydroxyisocaryophyllene [(1R,4Z, 6R, 9S)-8-methylene-11,11-dimethylbicyclo[7.2.0]undec-4-ene-6-ol] isolated from the Betula pendula Roth. birch buds was determined by NMR spectroscopy. The structures of caryophyllenic acid and isocaryphyllenic acid isolated from the Betula grandifolia Litv., B. albo-sinensis Burk., B. fusca Pall.ex Georg, B. obscura A. Kotula, B. litwinowii Doluch., B. hallii Howell, B. grandifolia Litv. birch buds was determined by X-ray diffraction analysis. The physico-

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Saleha, Sitti, Nurdin Saidi, Saiful ., Murniana ., Saida Rasnovi, and Teuku M. Iqbalsyah. "NUTRITIONAL COMPOSITION OF DIOSCOREA HISPIDA FROM DIFFERENT LOCATIONS AROUND LEUSER ECOSYSTEM AREA." Jurnal Natural 18, no. 1 (2018): 1–6. http://dx.doi.org/10.24815/jn.v18i1.8504.

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Proximate analysis of Dioscorea hispida tubers, collected from five locations around Leuser ecosystem in Aceh Province, showed variations amongst samples. Standard AOAC method for proximate analysis of the fresh weight showed that the water content varied between 15.8 - 37.8%, crude protein 1.13 -6.20%, crude lipid 1.99 - 9.36% and ash 0.29 - 1.24%. The total carbohydrate was high, i.e. between 58.3 -71.9%. The main mineral was phosphorus, with a value of 11.7 - 46.9 mg/100g. These variations could be due to soil, climate and weather factors, as well as postharvest handling. Phytochemical test

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Węsierska, Ewelina, Marek Szołtysik, and Władysław Migdał. "The properties of fermented beef products ripened as entire primal cuts of m. semitendinosus, m. semimembranosus and mm. psoas major and minor." Annals of Animal Science 14, no. 1 (2014): 197–212. http://dx.doi.org/10.2478/aoas-2013-0080.

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Abstract The physico-chemical, biochemical and microbiological changes in raw fermented beef products, manufactured from semitendinosus (ST), semimembranosus (SM), psoas major and minor (PM) muscles during ripening were evaluated. The accumulation of free fatty acids (1550, 2660, 1850 mg/kg) and the increase of lactobacilli (about 0.2 log cfu/g) had an effect on the pH. The low pH (4.9) reduced the coagulase-negative cocci population (0.2 log cfu/g) and affected the free amine groups content (185.2 and 25 μM Gly/kg) in the PM with the lowest fat content (2.9%). At the end of the ripening proce

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Ezemonye, Mary N., Stephanie I. Osiatuma, and Chukwudi N. Emeribe. "Impact Of Abattoir Waste On The Physico-Chemical Quality Of Anwai River, Asaba Delta State, Nigeria." European Scientific Journal, ESJ 12, no. 20 (2016): 277. http://dx.doi.org/10.19044/esj.2016.v12n20p277.

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Abattoir management is left in the hands of the populace and to this end, the wastes generated thereof are handled without consideration of the impacts on the environment. The study established quality deterioration for rainy/dry season physicochemical parameters at downstream (points after the abattoir) as theyexceeded values of the control point (sample site before the abattoir). The analysis of variance test at 0.05 confidence level supports the fact that quality of Anwai River at effluent discharge point differ significantly from quality at control point during rainy season. The rainy seas

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Bosak, P. "PHYSICO-CHEMICAL PROPERTIES OF WASTEWATER FROM TECHNOLOGICAL WASTE DUMPS OF NOVOVOLINSK MINING DISTRICT." Bulletin of Lviv State University of Life Safety, no. 18 (December 31, 2018): 117–24. http://dx.doi.org/10.32447/20784643.18.2018.13.

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Introduction. Waste dumps of mine rocks of Novovolynsky mining area have high acidity, considerable content of various salts, namely sulfate ions. This high mineralization is caused by the movement to the water-collection points and the interaction of such water with rock dumps, and besides, on its way wastewater is enriched with products of rocks destruction (sulphates and salts of alkaline earth elements) and coal. Running through the abandoned places and accumulating mineral and mechanical impurities, such water gets new physical and chemical properties, which strongly influence the qualita

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Mudri, Nurul Huda, Luqman Chuah Abdullah, Min Min Aung, Mek Zah Salleh, Dayang Radiah Awang Biak, and Marwah Rayung. "Comparative Study of Aromatic and Cycloaliphatic Isocyanate Effects on Physico-Chemical Properties of Bio-Based Polyurethane Acrylate Coatings." Polymers 12, no. 7 (2020): 1494. http://dx.doi.org/10.3390/polym12071494.

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Crude jatropha oil (JO) was modified to form jatropha oil-based polyol (JOL) via two steps in a chemical reaction known as epoxidation and hydroxylation. JOL was then reacted with isocyanates to produce JO-based polyurethane resin. In this study, two types of isocyanates, 2,4-toluene diisocyanate (2,4-TDI) and isophorone diisocyanate (IPDI) were introduced to produce JPUA-TDI and JPUA-IPDI respectively. 2,4-TDI is categorised as an aromatic isocyanate whilst IPDI is known as a cycloaliphatic isocyanate. Both JPUA-TDI and JPUA-IPDI were then end-capped by the acrylate functional group of 2-hydr

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Ding, Lei, Syed Ahtsham Ul Haq Bokhary, Masood Ur Rehman, et al. "Degree-Based Indices of Some Complex Networks." Journal of Mathematics 2021 (March 17, 2021): 1–16. http://dx.doi.org/10.1155/2021/5531357.

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A topological index is a numeric quantity assigned to a graph that characterizes the structure of a graph. Topological indices and physico-chemical properties such as atom-bond connectivity ABC , Randić, and geometric-arithmetic index GA are of great importance in the QSAR/QSPR analysis and are used to estimate the networks. In this area of research, graph theory has been found of considerable use. In this paper, the distinct degrees and degree sums of enhanced Mesh network, triangular Mesh network, star of silicate network, and rhenium trioxide lattice are listed. The edge partitions of these

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Domi, Brixhilda, Kapil Bhorkar, Carlos Rumbo, et al. "Assessment of Physico-Chemical and Toxicological Properties of Commercial 2D Boron Nitride Nanopowder and Nanoplatelets." International Journal of Molecular Sciences 22, no. 2 (2021): 567. http://dx.doi.org/10.3390/ijms22020567.

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Boron nitride (BN) nanomaterials have been increasingly explored for potential applications in chemistry and biology fields (e.g., biomedical, pharmaceutical, and energy industries) due to their unique physico-chemical properties. However, their safe utilization requires a profound knowledge on their potential toxicological and environmental impact. To date, BN nanoparticles have been considered to have a high biocompatibility degree, but in some cases, contradictory results on their potential toxicity have been reported. Therefore, in the present study, we assessed two commercial 2D BN sample

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Domi, Brixhilda, Kapil Bhorkar, Carlos Rumbo, et al. "Assessment of Physico-Chemical and Toxicological Properties of Commercial 2D Boron Nitride Nanopowder and Nanoplatelets." International Journal of Molecular Sciences 22, no. 2 (2021): 567. http://dx.doi.org/10.3390/ijms22020567.

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Boron nitride (BN) nanomaterials have been increasingly explored for potential applications in chemistry and biology fields (e.g., biomedical, pharmaceutical, and energy industries) due to their unique physico-chemical properties. However, their safe utilization requires a profound knowledge on their potential toxicological and environmental impact. To date, BN nanoparticles have been considered to have a high biocompatibility degree, but in some cases, contradictory results on their potential toxicity have been reported. Therefore, in the present study, we assessed two commercial 2D BN sample

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40

Cerjanec, Darko, Mladen Kučinić, Marina Vilenica, et al. "Ecological and faunistic features of caddisflies (Insecta: Trichoptera) in different types of habitats in the Dinaric karst area (Central Croatia)." Ecologica Montenegrina 36 (November 2, 2020): 6–39. http://dx.doi.org/10.37828/em.2020.36.2.

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Caddisfly faunistic and ecological features were studied at 14 sampling sites along the catchment area of the Dobra River. Adults were collected monthly, over a period of 13 months (from early November 2009 until the end of November 2010), using ultraviolet (UV) light trap and entomological net. Physico-chemical parameters of water and air were also measured at all sampling sites. The study encompassed several segments of caddisfly fauna: the composition, new records, the distribution of all recorded species and seasonal dynamics. A total number of 77 species were recorded, out of which 15 spe

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Sinha*, Pramod Kumar, and Ravinder Singh. "Seasonal zooplankton diversity in relation to physico chemical parameters of perennial pond of Chaibasa, West Singhbhum, Jharkhand in India." International Journal of Bioassays 5, no. 09 (2016): 4906. http://dx.doi.org/10.21746/ijbio.2016.09.0023.

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Plankton have immense value as food and play an important role in disposal of sewage and natural purifiers of water. Zooplankton diversity is one of the most important ecological parameter in water quality assessment. In this study we try to assess the seasonal zooplankton species richness and diversity, for a period of One-year (April 2014 – March 2015) data on the seasonal studies of zooplankton diversity of jubilee pond, Chaibasa, West Singhbhum, Jharkhand, India revealed the presence of 29 zooplankton species. A limited number of these were recorded throughout the year, while others were d

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Zhu, G. H., H. C. Li, I. Underwood, and Z. H. Li. "Specific surface area and neutron scattering analysis of water’s glass transition and micropore collapse in amorphous solid water." Modern Physics Letters B 33, no. 31 (2019): 1950391. http://dx.doi.org/10.1142/s0217984919503913.

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Physico-chemical instability is commonly associated with the amorphous state, and the understanding of instability mechanisms (e.g. the glass transition) involved is essential in designing pharmaceutical products. The glass transition of bulk water might occur at 210 K [Oguni et al., J. Phys. Chem. B 115 (2011) 14023] but it was recently proposed the glass transition of water could happen around 121 K [C. R. Hill et al., Phys. Rev. Lett. 116 (2016) 215501]. Note that molecular self-inclusions in a glassy water show relaxation features that are characteristically different from those observed i

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Akinwumi, A. O., A. A. Odunsi, A. B. Omojola, I. O. Olatoye, T. O. Akande, and B. S. Olawuyi. "Effects of graded levels of Tetracin® on physico-chemical and sensory properties of broiler meat 1." Nigerian Journal of Animal Production 44, no. 2 (2020): 34–45. http://dx.doi.org/10.51791/njap.v44i2.982.

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Tetracin® (a feed grade veterinary antibiotic) was administered at 0, 50, 100, 150 and 200mg/kg to conventional starter and finisher feed for broilers for a period of six weeks before the breast meat were analyzed for physical, chemical and organoleptic properties. One hundred and fifty (2 weeks old) broiler chicks were randomly divided into 10 birds per replicate with 3 replicates per treatment. At the end of the feeding trial, 6 birds per treatment were slaughtered, defeathered, eviscerated and dressed. The breasts cuts were however subjected to laboratory analyses. No statistically signific

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Beata Łabowska, Magdalena, Izabela Michalak, and Jerzy Detyna. "Methods of extraction, physicochemical properties of alginates and their applications in biomedical field – a review." Open Chemistry 17, no. 1 (2019): 738–62. http://dx.doi.org/10.1515/chem-2019-0077.

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AbstractIn this paper, the current state-of-art of extraction of alginates and the determination of their physico-chemical properties as well as their overall applications focussing on biomedical purposes has been presented. The quality and quantity of the alginate obtained with a variable yield prepared from brown seaweeds as a result of many factors, such as type of algae, extraction methods, chemical modification and others. Alginates are mainly extracted by using conventional alkaline extraction. However, novel extraction techniques such as microwave and ultrasound assisted extractions hav

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Yousuf, Showket, Muzamil Ahmad Sheikh, Subhash Chand, and Jasra Anjum. "Effect of different sources of potassium on yield and quality of apple (cv. Red Delicious) in temperate conditions." Journal of Applied and Natural Science 10, no. 4 (2018): 1332–40. http://dx.doi.org/10.31018/jans.v10i4.1945.

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The present investigation was carried out to observe the effect of potassium on different parameters of apple in temperate conditions. Randomized block design experiment was adapted for an orchard of 15 years old with collection of soil samples and their analysis for physico-chemical properties under different treatments with fixed quantity of urea (1500g/tree), DAP (750g/tree) and potassium through MOP, K2SO4 and K-Schoenite (2500g/tree) in three, one and two split applications, respectively. The first application of recommended quantity of fertilizers was applied three weeks before expected

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Imtiaz, Yusha, Beza Tuga, Christopher W. Smith, et al. "Synthesis and Cytotoxicity Studies of Wood-Based Cationic Cellulose Nanocrystals as Potential Immunomodulators." Nanomaterials 10, no. 8 (2020): 1603. http://dx.doi.org/10.3390/nano10081603.

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Polysaccharides have been shown to have immunomodulatory properties. Modulation of the immune system plays a crucial role in physiological processes as well as in the treatment and/or prevention of autoimmune and infectious diseases. Cellulose nanocrystals (CNCs) are derived from cellulose, the most abundant polysaccharide on the earth. CNCs are an emerging class of crystalline nanomaterials with exceptional physico-chemical properties for high-end applications and commercialization prospects. The aim of this study was to design, synthesize, and evaluate the cytotoxicity of a series of biocomp

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Coradi, Paulo C., and Ângelo F. C. Lemes. "Experimental silo-dryer-aerator for the storage of soybean grains." Revista Brasileira de Engenharia Agrícola e Ambiental 22, no. 4 (2018): 279–85. http://dx.doi.org/10.1590/1807-1929/agriambi.v22n4p279-285.

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ABSTRACT This study aimed to verify the capacity of silo-dryer-aerator prototype equipment operating as a silo-storage-aerator for soybean quality analysis. Soybeans with water content of 17% (wet basis – w.b.) were dried and stored in a silo-dryer-aerator system that was designed using a drying chamber, four independent storage cells, and a static capacity of 164 kg. Another batch of grains was stored in a silo-storage-aerator with a capacity of 1,200 kg. The experiment was set up in a completely randomized factorial 5 × 4 experimental design including five grain batches stored after being dr

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Pompei, C. M. E., E. D. L. Alves, E. M. Vieira, and L. C. Campos. "Impact of meteorological variables on water quality parameters of a reservoir and ecological filtration system." International Journal of Environmental Science and Technology 17, no. 3 (2019): 1387–96. http://dx.doi.org/10.1007/s13762-019-02552-8.

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Abstract Recently, special attention has been given to low-cost technologies for water treatment, with the aim of serving remote communities and thus enabling everyone to have access to drinking water and basic sanitation. In that context, the ecological filter is an alternative for treating water for human consumption. Some studies show that climate change and meteorological parameters can influence the water quality of water bodies and the water supply system. However, most of the papers deal with model projections and therefore do not show real situations. The aim of this study was to deter

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Kolda, Anamarija, Zrinka Ljubešić, Ana Gavrilović, Jurica Jug-Dujaković, Kristina Pikelj, and Damir Kapetanović. "Metabarcoding Cyanobacteria in coastal waters and sediment in central and southern Adriatic Sea." Acta botanica Croatica 79, no. 2 (2020): 157–69. http://dx.doi.org/10.37427/botcro-2020-021.

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Seasonal sampling of the seawater column and sediment in Adriatic coastal areas affected by various anthropogenic activities, primarily aquaculture, was conducted during 2017. In total, 32 samples from two sites (central and southern Adriatic) were analysed by 16S rRNA amplicon sequencing. This approach was selected to test the possibilities of using metabarcoding in studying marine cyanobacteria, exploring their ecology and potential as an indicator group in anthropologically stressed coastal environments. Additionally, physicochemical water column parameters, sediment granulometry and compos

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Politi, Tobia, Mindaugas Zilius, Giuseppe Castaldelli, Marco Bartoli, and Darius Daunys. "Estuarine Macrofauna Affects Benthic Biogeochemistry in a Hypertrophic Lagoon." Water 11, no. 6 (2019): 1186. http://dx.doi.org/10.3390/w11061186.

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Coastal lagoons display a wide range of physico-chemical conditions that shape benthic macrofauna communities. In turn, benthic macrofauna affects a wide array of biogeochemical processes as a consequence of feeding, bioirrigation, ventilation, and excretion activities. In this work, we have measured benthic respiration and solute fluxes in intact sediment cores with natural macrofauna communities collected from four distinct areas within the Sacca di Goro Lagoon (NE Adriatic Sea). The macrofauna community was characterized at the end of the incubations. Redundancy analysis (RDA) was used to q

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