Zeitschriftenartikel: „Physiochemical investigation“

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Gupta, Dipak Kumar, Dal Bahadur Bhandari, Prabhat Kumar Chaudhary und Amar Prasad Yadav. „Physiochemical and Microbiological Investigation of Surface and Ground Water Contaminants of Bhojpur Municipality“. Dristikon: A Multidisciplinary Journal 13, Nr. 1 (28.06.2023): 51–63. http://dx.doi.org/10.3126/dristikon.v13i1.56044.

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Water is an essential resource for life evolution. 75% of the whole earth is covered by water. The water sources that flow through the social periphery represent the development and awareness of that society. This paper focuses on investigating contaminants of different water sources within Bhojpur Municipality. The six different water samples, based on their different latitudes, were collected following all the guidelines. The physiochemical parameters and microbiological organisms like E. Coli were tested and analyzed. The results revealed that the physiochemical parameters were mostly found to be within the guideline and standardization of the World Health Organization (WHO), but in the Silichung water sample, the number of bacteria was found to be out of the WHO limit. Physiochemical parameters like total dissolved solids (TDS), total solids (TS), and chloride content were not found under the guideline of WHO. The dissolved oxygen (DO) content was found more in the water sample of Bahundhara, whereas Bhandari well sample had a low amount of DO among the other samples. The biological oxygen demand (BOD) level in Sera Khola sample was found more, while Silichung sample had a low amount of BOD, indicating Sera Khola water sample is a bit more polluted than others. On microbiological testing, the Silichung water sample was tested with Providencia spp, indicating not useful for drinking purposes. Thus, it reveals that the Silichung water should not take directly, which is rich in Providencia spp. Other physiochemical parameters of other samples were found to be within the range of WHO.

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Ismail, N. I. N., H. Awang, N. Z. Mohd Yunus und S. Saleh. „Physiochemical characterization of lateritic bauxite mining soil“. IOP Conference Series: Earth and Environmental Science 971, Nr. 1 (01.01.2022): 012029. http://dx.doi.org/10.1088/1755-1315/971/1/012029.

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Abstract Physiochemical characteristics play a significant role in evaluating the engineering behaviour of soil material and its suitability for foundation. Investigation upon the physical and chemical characteristics of lateritic bauxite soils were done on samples collected from three exmining bauxite sites (Bukit Goh, Semambu and Indera Mahkota) in Kuantan District, Pahang, Malaysia. The presence of chemical element was evaluated based on the elemental mineral composition content identified through X-Ray Fluorescence (XRF). The results revealed that Semambu lateritic bauxite soil has the highest content of alumina (Al2O3), 25.54%. The alumina content enrichment is one of the effects from the laterization of bauxite process. In addition, the physical testing included are moisture content, specific gravity and Atterberg Limit. Further investigation on the physical properties of the soil has found that Semambu has the highest MC, 33.27%, but at the same time PI is less than 12%. This is as a key indicator that lateritic bauxite is prone to surface erosion and unsuitable for construction purposes in its natural condition. The risk of the surface erosion and settlement of the ground causes it requires stabilizer that can rapid the curing time. Additionally, the high moisture content is likely to have higher chance to experience liquefaction and causes foundation problem to future infrastructures that may be built in the studied area.

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S, Sreeremya, und Rajiv P. „PHYSIOCHEMICAL ANALYSIS OF PRETREATED BIOMEDICAL WASTES“. Asian Journal of Pharmaceutical and Clinical Research 10, Nr. 12 (01.12.2017): 137. http://dx.doi.org/10.22159/ajpcr.2017.v10i12.21027.

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Objectives: The main objective of the research is to pretreat the Category III biomedical waste using Bacillus flexus and to assess the physiochemical properties of pretreated biomedical waste.Methods: Major pretreatment methods such as physical (P), chemical (C), biological (using B. flexus) (B), physical and chemical, and physical, chemical, and biological method (PCB) were adopted for this investigation. The nutritional status was analyzed before and after the pretreatment. The physiochemical parameters such as pH, electrical conductivity, moisture content, bulk density, cellulose content, and carbohydrate content were assessed.Results: There was a significant difference between before and after the pretreatments of physiochemical properties. By treating, the biomedical waste with B. flexus has produced a drastic change in the cellulose level. By the assessment of each parameter before and after the pretreatment, the percentage of cellulose levels was found to be 35-40 in PCB method.Conclusions: Hence, the study concludes that the pretreated biomedical waste contains suitable physiochemical properties, which may be used as a substrate for the production of vermicompost.

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Atom, Tijjani Inusa, Muhammad Hassan und Mohammed Maina. „The Physiochemical Investigation of Groundwater around Jere, North-eastern Nigeria“. International Journal of Applied Physics 7, Nr. 3 (25.11.2020): 83–87. http://dx.doi.org/10.14445/23500301/ijap-v7i3p113.

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Atom, Tijjani Inusa, Muhammad Hassan und Mohammed Maina. „The Physiochemical Investigation of Groundwater around Jere, North-eastern Nigeria“. International Journal of Applied Physics 7, Nr. 3 (25.11.2020): 83–87. http://dx.doi.org/10.14445/23500301/ijap-v7i3p113.

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Bridjesh, Pappula, Pitchaipillai Periyasamy und Narayanan Kannaiyan Geetha. „Influence of Chemical Composite Additive on Combustion and Emission Characteristics of a Diesel Engine using Waste Plastic Oil as Fuel and Modified Piston Bowl“. Oriental Journal of Chemistry 34, Nr. 6 (15.11.2018): 2806–13. http://dx.doi.org/10.13005/ojc/340617.

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This experimental investigation is an endeavour to substitute diesel with WPO as fuel on a diesel engine. Enhancing the physiochemical properties of WPO or with hardware modifications on the engine, the performance of engine could not be improved up to the mark. The physiochemical properties of WPO are enhanced by the use of composite additive, which is a mixture of soy lecithin and 2-ethylhexyl nitrate and to improve the in-cylinder air motion; subsequently to increase the swirl and turbulence, standard hemispherical combustion chamber is modified to toroidal spherical grooves combustion chamber. The results of combined effect of modifying the combustion chamber and addition of composite additive suggest that improvements in engine-out emissions can be obtained from current diesel engines by enhancing physiochemical properties of fuel and matching geometry of combustion chamber. Engine combustion and emission characteristics under various loads for various fuels under test are as well studied.

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Abrar, Shazia, Kazim Raza Naqvi, Sadia Javed, Shumaila Kiran, Imtiaz Qaiser, Tahsin Gulzar und Qamar Abbas. „Investigation of the Physiochemical Properties of Beauty Soaps Available in Pakistan“. Tenside Surfactants Detergents 57, Nr. 2 (16.03.2020): 162–67. http://dx.doi.org/10.3139/113.110675.

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Anvari, Sanam, Hamidreza Hajfarajollah, Babak Mokhtarani und Kambiz Akbari Noghabi. „Physiochemical and thermodynamic characterization of lipopeptide biosurfactant secreted by Bacillus tequilensis HK01“. RSC Advances 5, Nr. 111 (2015): 91836–45. http://dx.doi.org/10.1039/c5ra17275f.

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Chaubey, Neelesh, und Priyanka S. Jain. „Preliminary Physiochemical and Phytochemical Profile of Leonotis nepetaefolia“. Saudi Journal of Medical and Pharmaceutical Sciences 9, Nr. 07 (22.07.2023): 459–64. http://dx.doi.org/10.36348/sjmps.2023.v09i07.014.

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Herbal medicine has many active constituents for many diseases but the proper knowledge must be necessary for the preparationof herbal formulation otherwise active constituents will be damaged. Leonotis nepetifolia (L.) is recognized to be native to tropical Africa and southern India. In South Africa and the West Indies it is known as klip dagga, lion’s ear, Christmas, and candlesticks. Roots of the plant have been used in the treatment of asthma and bronchitis, fever, and poisoning whereas seeds are recognized in treating burns, and the whole plant is used for menstrual pains. Present investigation includes examination of morphological and microscopic characters; ash value, extractive values and phytochemical evaluations of various root extract. The purpose of research work to generated information of the standardization parameters of selected plant which helps in herbal formulations, a profound knowledge of the important herbs found in India and widely used in Ayurvedic formulation is of utmost importance.

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Y., Olotu, Ibrahim R, Eboreimen L., Eriakha C.E und Gimba I.N. „Investigation of Physiochemical Properties of Groundwater at Estako-West, Edo-North, Nigeria“. Indian Journal of Environment Engineering 1, Nr. 3 (30.05.2022): 43–46. http://dx.doi.org/10.54105/ijee.c1826.051322.

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The physicochemical parameters of groundwater at Auchi and South-Ibie were investigated to determine underground water quality in this environment. Water sampled locations in Auchi were categorized as Iyekhei (Iyekhei), Auchi Poly Water (Auchi PW), Auchi Poly Hostel (Auchi PH), Double Delight Hostel (DDH); South-Ibie locations are Levis Gas Plant (LGP), Pastoral Centre (PC), Global Castle Hostel Sawmill Road (GCHS), Arsenal Hostel and, Lagos Street (AHLS). A total number of 80 water samples from eight locations were collected and analyzed using some statistical metrics to determine the relationship among measured parameters. The pH of water samples ranged from 1.4 at GCHS to 4.12 at AHLS. The result indicated that all the investigated water samples have low pH values with a high alkalinity level. Total dissolved solids (TDS) of 300mg/L, 400mg/L, and 500mg/L were obtained from the water samples at Iyekhei, Auchi PH, and DDH. These values are within the allowable World Health Organization (WHO) standard. However, the chloride level for all locations was very high except for Iyekhei, with a value of 115 mg/L, which is accepted within the WHO requirement of 250 mg/L. Conductivity values of four sampled water locations; namely, Auchi PH, DDH, PC, and GCHS, are within the allowable limit. High conductivity values of 304 sm/cm, 116.7sm/cm, and 845 sm/cm were obtained for LGP, Auchi PW, Iyekhei, respectively. All the water sampled locations' results indicated that none of the sampled water is within the WHO required standard of 20oC to 23oC. The statistical metrics showed a strong relationship between the conductivity and chloride concentration with R2=0.7174; this may be related to some dissolved conductive ions in the water sampleThe research study's output is imperative to understand the relationship between different groundwater parameters to develop and good groundwater quality.

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Misra, Pramila K., Jibardhan Meher und Suprava Maharana. „Investigation on the gelatin-surfactant interaction and physiochemical characteristics of the mixture“. Journal of Molecular Liquids 224 (Dezember 2016): 900–908. http://dx.doi.org/10.1016/j.molliq.2016.10.043.

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Ara Shampa, Jasmin. „Physiochemical and Antibacterial Activity Investigation on Noble Schiff Base Cu(II) Complex“. American Journal of Heterocyclic Chemistry 3, Nr. 4 (2017): 37. http://dx.doi.org/10.11648/j.ajhc.20170304.11.

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Chen, Chao-Cheng, Deng-Yuan Chang, Jia-Je Li, Hui-Wen Chan, Jenn-Tzong Chen, Chih-Hsien Chang, Ren-Shyan Liu, C. Allen Chang, Chuan-Lin Chen und Hsin-Ell Wang. „Investigation of biodistribution and tissue penetration of PEGylated gold nanostars and their application for photothermal cancer treatment in tumor-bearing mice“. Journal of Materials Chemistry B 8, Nr. 1 (2020): 65–77. http://dx.doi.org/10.1039/c9tb02194a.

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PEGylated gold nanostars (pAuNSs) and their radioactive surrogate (¹¹¹In–DTPA–pAuNS), with unique physiochemical properties, are thought to be a promising agent for image-guided photothermal therapy (PTT).

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Naveen, A. Nirmalesh, und Subramanian Selladurai. „Investigation on physiochemical properties of Mn substituted spinel cobalt oxide for supercapacitor applications“. Electrochimica Acta 125 (April 2014): 404–14. http://dx.doi.org/10.1016/j.electacta.2014.01.161.

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Iyer, Deepa, M. L. Soni, V. Mulchandani und Nafeesa Siddiqui. „Pharmacognostical Investigation on Fruits of Apium graveolens L.: An Ayurvedic Herb“. Journal of Ayurvedic and Herbal Medicine 7, Nr. 4 (30.12.2021): 232–36. http://dx.doi.org/10.31254/jahm.2021.7404.

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Herbs are the resources of biologically or pharmacologically active components that are conventionally used to treat various ailments. Apium graveolens is being significantly used in “Ayurvedic system of medicine”. Since these medicinal herbs are collected by untutored personals on the basis of their Sanskrit/ local names, there occurs a great chance of confusion or misidentification due to unawareness and related vernacular names. To assist exact and effortless recognition of drugs, Pharmacognostical characters involving macroscopical, microscopical and physiochemical parameters were studied. This helped in studying quality control parameters for sample identification with determination of their quality and purity.

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Remadevi, Rechana, und Stuart Gordon. „Investigation of the Physiochemical Structure and UV Absorption Properties of Cottonseed Hull and Kernel“. Modern Applied Science 16, Nr. 3 (07.06.2022): 1. http://dx.doi.org/10.5539/mas.v16n3p1.

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This work has investigated the morphology, chemical structure and UV absorption properties of cottonseed hull and kernel, as part of an assessment of these materials for use as potential UV absorbing and/or medical compounds. The morphological analysis of the samples revealed that cottonseed kernel has a porous and homogenous morphology. By comparing the FTIR of cottonseed hull and kernel, it was found that the kernel sample has more polyphenol groups. Moreover, an examination of the UV absorption spectra showed the kernel tissue had stronger absorption spectra in both the UVA (320-400nm) and UVB (290-320nm) regions than material from the hull. Thus, the present study demonstrated that the cottonseed kernel could be a promising source of natural UV absorber.

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Yun, Bohyun, Min Kyung Kim, Jin Hee Ryu, Won-Il Kim, Byeong-Yong Park, Hyun-Ju Kim, Seung-Don Lee und Se-Ri Kim. „Investigation of Microbiological and Physiochemical Quality for Irrigation Water used in Napa Cabbage Cultivation“. Journal of Food Hygiene and Safety 32, Nr. 5 (30.10.2017): 396–403. http://dx.doi.org/10.13103/jfhs.2017.32.5.396.

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Demir, Pelin, Yasin Baykalir und Gulsum Oksuztepe. „Investigation of the Physiochemical and Microbiological Quality of Fruit Yoghurt Sold in Elazig Province“. European Journal of Agriculture and Food Sciences 5, Nr. 5 (17.10.2023): 75–82. http://dx.doi.org/10.24018/ejfood.2023.5.5.709.

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This study was conducted to determine some quality parameters of 25 fruit yoghurt samples (strawberry, forest fruit, blueberry, apricot, fig, mango, peach) sold in Elazig province. For this purpose, physicochemical (pH, acidity, fat, dry matter, starch, peroxidase, heat treatment) and microbiological [total mesophilic aerobic (TMA) bacteria, psychrotrophic bacteria, Lactobacillus-Leuconostoc-Pediococcus (LLP), lactic streptococcus, proteolytic and lipolytic microorganism, coliform, Enterobacteriaceae, Escherichia coli, Staphylococcus-Micrococcus, Staphylococcus aureus, Salmonella spp. and yeast-mold] analyzes of fruit yoghurt samples were performed. It was determined that 14 samples (8%) did not comply with the Turkish Food Codex Fermented Dairy Products Communiqué and TSE yoghurt standard regarding acidity value (% l.a.). The presence of starch in 91 (52%), peroxidase in 91 (52%) and heat treatment tests in 147 (84%) of the samples were positive. In the 161 (92%) samples coliform, Enterobacteriaceae and Staphylococcus-Micrococcus; and in the 154 (88%) of yeast and mold microorganisms were observed to be less than <1.0 log10 cfu/g of. Total psychrophilic bacteria, E. coli, Staphylococcus aureus, and Salmonella spp. have not emerged in any of these samples (<1.0 log10 cfu/g). There is only a statistical significance observed in Proteolytic bacteria between fruit yoghurt groups (P < 0.05). The lowest number (5.36 ± 0.10 log10 cfu/g) of proteolytic bacteria was observed in forest fruit; the highest (7.02 ± 0.52 log10 cfu/g) was determined in yoghurt with figs. As a result, it was concluded that the microbiological quality of the examined fruit yoghurt samples was not adequate for the hygienic conditions. It is thought that hygienic conditions were not considered during the production process and it could pose a risk to public health.

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Doekhie, Aswin, Rajeev Dattani, Yun-Chu Chen, Francoise Koumanov, Karen J. Edler, Jean M. H. van den Elsen und Asel Sartbaeva. „Physiochemical Changes to TTCF Ensilication Investigated Using Time-Resolved SAXS“. AppliedChem 1, Nr. 1 (05.08.2021): 4–13. http://dx.doi.org/10.3390/appliedchem1010002.

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Successful eradication or control of prevailing infectious diseases is linked to vaccine efficacy, stability, and distribution. The majority of protein-based vaccines are transported at fridge (2–8 °C) temperatures, cold chain, to retain potency. However, this has been shown to be problematic. Proteins are inherently susceptible to thermal fluctuations, occurring during transportation, causing them to denature. This leads to ineffective vaccines and an increase in vaccine-preventable diseases, especially in low-income countries. Our research utilises silica to preserve vaccines at room temperature, removing the need for cold chain logistics. The methodology is based upon sol–gel chemistry in which soluble silica is employed to encapsulate and ensilicate vaccine proteins. This yields a protein-loaded silica nanoparticle powder which is stored at room temperature and subsequently released using a fast chemical process. We have previously shown that tetanus toxin C fragment (TTCF) ensilication is a diffusion-limited cluster aggregation (DLCA)-based process using time-resolved small-angle x-ray scattering (SAXS). Here, we present our expanded investigation on the modularity of this system to further the understanding of ensilication via time-resolved SAXS. Our results show that variations in the ensilication process could prove useful in the transition from batch to in-flow manufacturing of ensilicated nanoparticles.

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Harreh, Dewi, A. A. Saleh, A. N. R. Reddy und S. Hamdan. „An Experimental Investigation of Karanja Biodiesel Production in Sarawak, Malaysia“. Journal of Engineering 2018 (2018): 1–8. http://dx.doi.org/10.1155/2018/4174205.

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The application of nonedible feedstock for the production of biodiesel has become an area of research interest among clean energy experts in the past few years. This research is aimed at the utilization of Pongamia pinnata (karanja), a nonedible feedstock from the state of Sarawak, Malaysia, to produce biodiesel to be known as crude karanja oil (CKO). A one-step transesterification process utilizing 7 : 1–10 : 1 wt% methanol (CH3OH) and 0.5–1.2 wt% sodium hydroxide (NaOH) at 65°C for 1.5 hrs has been used for the biodiesel production yielding 84% conversion. The physiochemical properties of the CKO produced revealed that it conforms with EN14214 standards for brake power (BP), brake specific fuel consumption (BSFC), and brake thermal efficiency (BTE) as they are all noted be optimal at B40.

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Sharif Md. Al-Reza, Md. Shadiqul Islam, Sumaiya Islam Sadia, Jenine Islam Shama und Sabreena Jahan. „Physiochemical study of some perennial fruits and vegetables available in local market of Bangladesh“. International Journal of Science and Research Archive 11, Nr. 1 (30.01.2024): 396–400. http://dx.doi.org/10.30574/ijsra.2024.11.1.0054.

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Fruits and vegetables are generally valued for their rich content of vitamins and minerals. The chemical composition such as moisture, ash and total vitamin C content of five vegetables (potato, pumpkin, carrot, green papaya, bitter gourd) and five fruits (mango, lemon, cucumber, pineapple, tomato) were examined methodically in this investigation. The investigation is performed by gravimetric and thermo-gravimetric methods which occurred by using oven, muffle furnace and titrating instrumentation. The result indicated that moisture content varied from 75.33% to 95.80%, ash content varied from 0.19% to 1.21% and vitamin C content varied from 9.1 mg/ml to 55.66 mg/ml in the selected samples. These outcomes conclusively hint that moisture content is highly presented in tomato, ash content is high in mango and vitamin C is high in lemon. Moisture content is used for the quality factor of some products like jams and jelly sugar crystallization and food packaging. Ash content measures the minerals in the food and minerals are very essential elements for the body. Vitamin C is the master of extraction and determination of ascorbic acid in food products and it’s a complete deficiency that results in scurvy.

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Li, Yan Mei, Xiao Yong Zhou und Jun Yang. „Investigation on Soil Physiochemical Properties and Heavy Metal Contamination Characteristics in Two Types of Sites“. Applied Mechanics and Materials 665 (Oktober 2014): 547–50. http://dx.doi.org/10.4028/www.scientific.net/amm.665.547.

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We investigated soil physiochemical properties and heavy metal contamination characteristics in steel and chemical sites, aimed to provide theoretical basis for future site remediation. Results indicated that: soils in both sites showed sandy and alkaline trend. Soil total phosphorus, total potassium, and available nitrogen content in steel site, and total and available nitrogen, phosphorus and potassium content in chemical site were lower than that in farmland soil. Soil lead and zinc contamination in steel site and soil arsenic contamination in chemical site should be given priority in remediation. In addition, cadmium and arsenic risk in steel site and mercury risk in chemical site should also be paid sufficient attention.

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Woldeyohannis, Yared Seifu, Someshakher S. Hiremath, Simie Tola und Amana Wako. „Investigation of Soil Physiochemical Properties Effects on Soil Compaction for a Long Year Tilled Farmland“. Applied and Environmental Soil Science 2022 (17.10.2022): 1–9. http://dx.doi.org/10.1155/2022/8626200.

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In many parts of the world, the earth has been heavily compacted as a result of large farm equipment. For soil compaction, the main constituent factors were soil physiochemical properties such as soil texture, moisture content, electrical conductivity, cation exchange capacity, total organic carbon, organic matter, total nitrogen, and soil pH directly and indirectly. This article addressed the causes and effects of soil compaction, operating parameters, and soil physicochemical properties in the Bishoftu long year tilled farmland of Ethiopia. For the experimental test, 5 different depths (5, 10, 15, 20, and 25 cm) and fifteen sample points were selected in 0.6 ha of 60 m by 100 m farmland for taking soil compaction data. Soil samples are taken from three depth ranges (0–10, 10–20, and 20–30 cm) from farmlands for investigation of soil physicochemical properties. The maximum and minimum values of the cone index of this study were 1918.133 kPa and 864.733 kPa, respectively, by taking the average of all sample points. The soil laboratory result shows that Bishoftu farmland soil is a mixture of loam, clay loam, and sandy clay loam with 47.33% of sand, 25.67% of clay, and 27% of silt. The maximum and minimum percentages of soil moisture values were 27.02 and 21.46 at 0–10 cm and 20–30 cm depth, respectively. Total organic carbon, organic matter, and total nitrogen exhibit positive relationships with depth and soil compaction. The correlation analysis indicates soil pH, electric conductivity, percentage of sand, cation exchange capacity, organic matter, and total nitrogen were among soil physiochemical parameters that are positively correlated with soil compaction. Furthermore, the percentage of clay, percentage of silt, and total organic carbon ( p ≤ 0.05 ) are negatively correlated with soil compaction in soil samples.

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Bijauliya, Rohit Kumar, Pushpendra Kannojia, Pankaj Mishra, Prashant Kumar Singh und Rahul Kannaujia. „Pharmacognostical and Physiochemical Study on the Leaves of Nyctanthes arbor-tristis Linn“. Journal of Drug Delivery and Therapeutics 11, Nr. 4 (15.07.2021): 30–34. http://dx.doi.org/10.22270/jddt.v11i4.4914.

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Aim: To rationalize the macroscopial, microscopical and physico-chemical studies on leaves of plant Nyctanthes arbor-tristis Linn. Methods: The pharmacognostic characters were determined in terms of macroscopy, microscopy and powder microscopy of plant Nyctanthes arbor-tristis leaves. The crude ethanolic extract of leaves of Nyctanthes arbor-tristis Linn. was using physico-chemical parameters, and preliminary phytochemical investigation (TLC). Results: The microscopic study shows the general characteristic of Nyctanthes arbor-tristis leaves. Phytochemical analysis revealed the presence of various phytochemical groups like alkaloids, glycosides, steroids, phenolic, tannins constituents. Conclusion: It can be concluded that the established pharmacognostic profile of Nyctanthes arbor-tristis leaves will be helpful in developing pharmacopoeial standards for correct identification and quality control. The present observation will also be helpful in macroscopical and microscopical on leaves of Nyctanthes arbor-tristis Linn. Keywords: Nyctanthes arbor-tristis, Pharmacognostical Study, Macroscopial and Microscopical studies

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Yahaya Khan, Mohammed, Z. A. Abdul Karim, Ftwi Yohaness Hagos, A. Rashid A. Aziz und Isa M. Tan. „Current Trends in Water-in-Diesel Emulsion as a Fuel“. Scientific World Journal 2014 (2014): 1–15. http://dx.doi.org/10.1155/2014/527472.

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Water-in-diesel emulsion (WiDE) is an alternative fuel for CI engines that can be employed with the existing engine setup with no additional engine retrofitting. It has benefits of simultaneous reduction of bothNOxand particulate matters in addition to its impact in the combustion efficiency improvement, although this needs further investigation. This review paper addresses the type of emulsion, the microexplosion phenomenon, emulsion stability and physiochemical improvement, and effect of water content on the combustion and emissions of WiDE fuel. The review also covers the recent experimental methodologies used in the investigation of WiDE for both transport and stationary engine applications. In this review, the fuel injection pump and spray nozzle arrangement has been found to be the most critical components as far as the secondary atomization is concerned and further investigation of the effect of these components in the microexplosion of the emulsion is suggested to be center of focus.

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Stanković, Ana, und Sonja Jovanović. „Investigation the influence of mechanochemical processing on solubility of verapamil hydrochloride“. Tehnika 76, Nr. 1 (2021): 9–14. http://dx.doi.org/10.5937/tehnika2101009s.

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Dissolution of drugs is a very important factor that directly affects their potential application. Due to the fact that solubility may act as a limiting factor in the process of absorption of the drug, it can also affect its bio-availableness. More than 40 percent of potential drugs have a property of a poor solubility in the water, resulting in potentially important pharmaceutical products not reaching patients or reaching their full potential. This work examined the possibility of improving the solubility of verapamil hydrochloride (VHCl) by applying mechanochemical treatment. The impact of mechanochemical treatment on physiochemical properties was comprehended by applying XRPD, FTIR and Raman spectroscopy, as well as FESEM analysis. Besides, particle size distribution was determined. Solubility of verapamil hydrochloride was determined by using UV-VIS spectroscopy. Finally, the solubility of verapamil hydrochloride was correlated with particle size distribution, structural and morphological characteristics.

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Cai, Mingkai, Jithendra Ratnayake, Peter Cathro, Maree Gould und Azam Ali. „Investigation of a Novel Injectable Chitosan Oligosaccharide—Bovine Hydroxyapatite Hybrid Dental Biocomposite for the Purposes of Conservative Pulp Therapy“. Nanomaterials 12, Nr. 21 (07.11.2022): 3925. http://dx.doi.org/10.3390/nano12213925.

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This study aimed to develop injectable chitosan oligosaccharide (COS) and bovine hydroxyapatite (BHA) hybrid biocomposites, and characterise their physiochemical properties for use as a dental pulp-capping material. The COS powder was prepared from chitosan through hydrolytic reactions and then dissolved in 0.2% acetic acid to create a solution. BHA was obtained from waste bovine bone and milled to form a powder. The BHA powder was incorporated with the COS solution at different proportions to create the COS–BHA hybrid biocomposite. Zirconium oxide (ZrO2) powder was included in the blend as a radiopacifier. The composite was characterised to evaluate its physiochemical properties, radiopacity, setting time, solubility, and pH. Fourier-transform infrared spectroscopic analysis of the COS–BHA biocomposite shows the characteristic peaks of COS and hydroxyapatite. Compositional analysis via ICP-MS and SEM-EDX shows the predominant elements present to be the constituents of COS, BHA, and ZrO2. The hybrid biocomposite demonstrated an average setting time of 1 h and 10 min and a pH value of 10. The biocomposite demonstrated solubility when placed in a physiological solution. Radiographically, the set hybrid biocomposite appears to be more radiopaque than the commercial mineral trioxide aggregate (MTA). The developed COS-BHA hybrid biocomposite demonstrated good potential as a pulp-capping agent exhibiting high pH, with a greater radiopacity and reduced setting time compared to MTA. Solubility of the biocomposite may be addressed in future studies with the incorporation of a cross-linking agent. However, further in vitro and in vivo studies are necessary to evaluate its clinical feasibility.

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Mohd Abdul Fatah, Ahmad Fuzamy, Muhamad Nazri Murat und NoorAshrina A. Hamid. „Physiochemical and Electrochemical Properties of Lanthanum Strontium Cobalt Ferum–Copper (II) Oxide Prepared via Solid State Reaction“. Journal of Physical Science 33, Nr. 3 (30.11.2022): 101–17. http://dx.doi.org/10.21315/jps2022.33.3.7.

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Lanthanum strontium cobalt ferum (LSCF) with addition of copper oxide (CuO) can serve as an alternate cathode material in Intermediate Temperature Solid Oxide Fuel Cell (IT-SOFC) due to its strong catalytic activity for oxygen reduction process at intermediate temperatures and great chemical compatibility. This study was done to determine the viability of LSCF–CuO composite as a material for the IT-SOFC cathode. The cathode powder was synthesised using the conventional solid-state process at intermediate temperatures range (600ºC–900ºC). The thermogravimetric analysis demonstrated that when LSCF was calcined at temperatures over 600ºC, the weight loss curve flattened. In the meantime, x-ray diffraction revealed that the perovskite structure of LSCF-CuO was completely formed after calcined at 800ºC. Moreover, the Brunauer– Emmett–Teller (BET) and scanning electron microscope investigations demonstrated that as the calcination temperature rose, the LSCF–CuO particles tended to grow. The electrochemical impedance spectroscopy investigation revealed polarisation resistance of samples calcined at 800ºC (0.41 Ωcm2) was significantly lower than that of samples calcined at 600ºC (29.57 Ωcm2). Judging from chemical, physical and electrochemical properties, it is evidence that LSCF-CuO prepared via simple solid-state reaction has a potential to be used as cathode material for IT-SOFC.

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Sathappa, Murugappan, Matthew Greenwood und Nathan Alder. „Investigation of the Physiochemical Properties of the Phospholipid Cardiolipin: Implications for Oxphos Regulation and Barth Syndrome“. Biophysical Journal 110, Nr. 3 (Februar 2016): 422a—423a. http://dx.doi.org/10.1016/j.bpj.2015.11.2284.

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Ngo, Sin Ting, Wei-Fang Lee, Yi-Fan Wu, Eisner Salamanca, Lwin Moe Aung, Yan-Qiao Chao, Ting-Chia Tsao et al. „Fabrication of Solvent-Free PCL/β-TCP Composite Fiber for 3D Printing: Physiochemical and Biological Investigation“. Polymers 15, Nr. 6 (10.03.2023): 1391. http://dx.doi.org/10.3390/polym15061391.

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Manufacturing three-dimensional (3D) objects with polymers/bioceramic composite materials has been investigated in recent years. In this study, we manufactured and evaluated solvent-free polycaprolactone (PCL) and beta-tricalcium phosphate (β-TCP) composite fiber as a scaffold material for 3D printing. To investigate the optimal ratio of feedstock material for 3D printing, the physical and biological characteristics of four different ratios of β-TCP compounds mixed with PCL were investigated. PCL/β-TCP ratios of 0 wt.%, 10 wt.%, 20 wt.%, and 30 wt.% were fabricated, with PCL melted at 65 °C and blended with β-TCP with no solvent added during the fabrication process. Electron microscopy revealed an even distribution of β-TCP in the PCL fibers, while Fourier transform infrared spectroscopy demonstrated that the biomaterial compounds remained intact after the heating and manufacturing process. In addition, adding 20% β-TCP into the PCL/β-TCP mixture significantly increased hardness and Young’s Modulus by 10% and 26.5%, respectively, suggesting that PCL-20 has better resistance to deformation under load. Cell viability, alkaline phosphatase (ALPase) activity, osteogenic gene expression, and mineralization were also observed to increase according to the amount of β-TCP added. Cell viability and ALPase activity were 20% higher with PCL-30, while upregulation for osteoblast-related gene expression was better with PCL-20. In conclusion, PCL-20 and PCL-30 fibers fabricated without solvent exhibited excellent mechanical properties, high biocompatibility, and high osteogenic ability, making them promising materials for 3D printing customized bone scaffolds promptly, sustainably, and cost-effectively.

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Liu, Shengjie, Shengbo Zhou, Aihong Peng und Wu Li. „Investigation of physiochemical and rheological properties of waste cooking oil/SBS/EVA composite modified petroleum asphalt“. Journal of Applied Polymer Science 137, Nr. 26 (10.07.2020): 48828. http://dx.doi.org/10.1002/app.48828.

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Bowen, W. H. „Biochemical and Micro-Analytical Methods“. Advances in Dental Research 1, Nr. 1 (Dezember 1987): 88–91. http://dx.doi.org/10.1177/08959374870010012001.

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Because of the small amounts of material available for study, investigations of plaque, caries lesions in enamel, and antibodies in saliva pose difficult challenges for investigators. Sophisticated biochemical and fluorescence techniques can now be used to investigate the microbial composition of plaque, thereby avoiding the need for tedious culturing techniques from single sites on tooth surfaces. A range of microchemical methodologies is available which greatly facilitates the analysis of plaque fluid, thereby enhancing our understanding of tooth-plaque interactions. The application of a range of novel physiochemical techniques should help to clarify our knowledge of the interactions involved in pellicle formation and elucidate the phenomena involved in the formation of the early caries lesion. A range of techniques is now available for the study of antibodies in saliva. These include ELISA, RIA, and solid-phase immunoassay. The application of these methodologies to the investigation of oral diseases should facilitate our understanding of the pathogenesis of dental maladies at the molecular level.

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Anurag Pandey, Rajani Srivastava und Sunil Kumar Mishra. „Assessment of Pharmacognostic and Preliminary Physicochemical Investigations of Ethnomedicinal Plant Leea Asiatica (L.) Ridsdale of Valmiki Tiger Reserve, West-Champaran District, Bihar“. International Journal of Research in Pharmaceutical Sciences 11, Nr. 4 (20.12.2020): 6966–74. http://dx.doi.org/10.26452/ijrps.v11i4.3799.

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Leea asiatica (L.) Ridsdale is synonymously known as Phytolacca asiatica L. and Leea crispa L.. Leea asiatica is a perennial shrub or small tree in the family Vitaceae. According to a survey, any report was not available on macroscopic, microscopic, and physicochemical investigations of Leea asiatica (L.) Ridsdale. The present study was aimed to evaluate macroscopic, microscopic characters, and physicochemical investigations of Leea asiatica (L.) Ridsdale. All parameters were established according to the Pharmacognostical standards procedure. Leaves were found to be petiolate, leaflets 5-7, oblong or elliptic-ovate. Stems are soft wooded, erect, and pubescent. Transverse sections of the midrib of leaf displayed a single layer of the epidermis, glandular, and non-glandular trichomes. Powder microscopy of the leaf and stem showed the presence of rosette crystals of calcium oxalate, trichomes, and starch grains. Physiochemical studies like ash values, extractive values, and LOD of Leea asiatica leaves have also been established. The present studies have established parameters for the correct identification of Leea asiatica. The present investigation was carried out to focus on pharmacognostic and preliminary physicochemical investigations of plant, Leea asiatica (L.) Ridsdale., which will assist in standardization for authenticity, quality, and identification of herbal products.

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Hamdi, N., L. Bessais und W. Belam. „Sol-gel Autocombustion Elaboration and Physiochemical Characterizations of Cu2+ Substituted Cobalt Ferrite Nanoparticles“. Open Chemistry Journal 7, Nr. 1 (31.12.2020): 44–54. http://dx.doi.org/10.2174/1874842202007010044.

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Introduction: The copper doped cobalt ferrite series, with nominal formula CuXCo1-XFe2O4 (X = 0, 0.25, 0.5, 0.75, 1), has been elaborated via sol-gel autocombustion process by copper substitution procedure into cobalt ferrite framework. Methods: The five synthesized ferrites have been analyzed by X-ray powder diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy coupled to energy dispersive X-ray spectroscopy, complex impedance spectroscopy and superconducting quantum interference device magnetometry. Results and Discussion: The analysis of the results allowed to deduce that the cubic spinel basic structure was not modified by the incorporation of copper into the host lattice and the corresponding pure fine powders obtained formed by homogeneous nanoparticles. The highest electrical conductivity value, σDC(373K) = 27.03x10-3S.cm-1, was observed in the case of CuFe2O4. Conclusion: Moreover, the superparamagnetic behavior at room temperature has been confirmed by using both ZFC-FC and hysteresis magnetic measurement modes. In addition, the remarkable electrical conductivity and magnetic properties of the five explored nanoferrites, derived from the present investigation, enabled them useful in several modern nanotechnological and biomedical applications.

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B., Abhishek, und Avinash Saini. „Evaluation of Physiochemical Screening and Standardization on the Root of Rotula aquatica Lour.“ Indian Journal of Pharmaceutical and Biological Research 1, Nr. 01 (31.01.2013): 63–67. http://dx.doi.org/10.30750/ijpbr.1.1.6.

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The root of Rotula aquatica is also called as pashanbed, belonging to the family Borogenaceae. It is widely distributed in India from kumaun to Assam and western to southern India.The medicinal values of plant lie in their component phytochemicals such as alkaloids, flavonoids, phenolic compounds and other nutrients like as amino acid, proteins, which produce a definite physiological action on the human body. The proximate values such as moisture content, ash value, extractive value, were carried out. The dried roots powder was subjected to successive extraction with different solvents like petroleum ether, benzene, chloroform, methanol, ethanol and water. Macroscopic as well as microscopic studies of any crude drug are the primary steps to establish its botanical quality control before going to other studies. Hence Standardization of crude drug plays a very important role in identifying the purity and quality of crude drugs. The present investigation reveals Standardization which include Moisture Content, Total ash, Acid insoluble ash, Water soluble ash, Water soluble Extractive value, Alcohol soluble Extractive value, Phytochemical screening, and further isolation and identification of Phytoconstituents.

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Archana Dada Memane und Arti Dattatray Sutar. „A Study of Physical Parameters of Water Samples from Bhima River, Pune City and Their TDS, Conductivity“. Knowledgeable Research: A Multidisciplinary Journal 1, Nr. 09 (01.05.2023): 1–4. http://dx.doi.org/10.57067/kr.v1i09.73.

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It is crucial to be aware of the drinking water resources' quality in rural areas. Hydro-geochemical studies are becoming more important for the use of groundwater because there has been a rise in the demand for water recently due to population growth and intensive agricultural operations. One of the major environmental health risks is the quality of drinking water. The use of clean drinking water is the cornerstone of controlling and preventing diseases that are transmitted by water. In this study, it has been determined whether the water quality of Bhima river is suitable for drinking purposes or not. Eight samples were collected from different Locations; each sample was examined for Physiochemical parameters. The Central Water Commission, World Health Organization, and CPCB (Central Pollution Control Board of India) protocols were followed for doing the water's Physiochemical Analysis. Water quality standards and a number of parameters, including pH, Dissolved Oxygen (DO), Chemical Oxygen Demand (COD), Temperature, Specific Conductivity, and Total Dissolved Solid, were examined. The pH ranged from being very basic to barely neutral in all of the samples. Among samples, there had been differences in TDS, temperature, pH, and conductivity. The investigation of the river water revealed that it cannot be used as potable water.

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YAPRAK, Ahmet Emre, Selçuk Tuğrul KÖRÜKLÜ und Gül Nilhan TUĞ. „A NEW RARE MACROPHYTE RECORD FROM SW ASIA AND ECOLOGICAL CONDITIONS AT ITS HABITAT“. Communications Faculty of Science University of Ankara Series C Biology Geological Engineering and Geophysical Engineering 30, Nr. 2 (31.12.2021): 148–56. http://dx.doi.org/10.53447/communc.1023578.

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Aldrovanda vesiculosa L. is a cosmopolitan but very rare carnivorous aquatic angiosperm species from the family Droseraceae. The species was widespread and more common few decades ago but unfortunately it is being extinct in so many former distribution areas due to aquatic pollution and eutrophication. During the field trip to Karakuyu Lake we recognized a remarkable free-floating plant, after detailed investigation we identified the specimens as Aldrovanda vesiculosa which is a new record from Turkey and also SW Asia. In this publication, we provided detailed description of the species based on Turkish specimens, its habitat description, water physiochemical attributes, co-occurring macrophyte species list and botanical illustration of the species.

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Jha, Vikas, Prakruti Kapadia, Anjali Bhosale, Simeen Rumani, Reetikesh Patel, Arpita Marick, Anjali Mange et al. „Comprehensive Investigation of Juniperus virginiana Essential Oil: GC/MS Analysis, Thermoanalytical Characterization, and Evaluation of Bioactive Potential“. Journal of Drug Delivery and Therapeutics 14, Nr. 2 (15.02.2024): 102–12. http://dx.doi.org/10.22270/jddt.v14i2.6368.

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Due to the ever-increasing unregulated antibiotic use, there have been increased risks of antibiotic-resistant bacterial infections. Natural agents, their products, and derivatives have been used for centuries to cure a variety of ailments. In the present study, an attempt was made to explore the physiochemical properties of the CEO. GC-MS analysis was used to identify the volatile components present in the oil. Additionally, TGA and DSC analysis were carried out to understand the thermal properties of the oil. The oil was characterized by higher amounts of terpenoids. The essential oil has potent anticancer, cytotoxic, antimalarial, and anti-inflammatory activity. This study concludes that the Juniperus virginiana essential oil could be used as a therapeutic agent. Keywords: Anticancer, Antioxidant, Cedarwood, Cytotoxicity, Essential oil

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Kumar, Mukul, Daniyal Elahi, Anshika Bhardwaj, Simran Sharma, Kavya Khushi, Esha Singh, Nandini Singh und Anirudh Srivastava. „Physiochemical investigation of the excipients mixed micelles for improvement of encapsulation and controlled release of antihistamine drugs“. Journal of Molecular Liquids 364 (Oktober 2022): 119971. http://dx.doi.org/10.1016/j.molliq.2022.119971.

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Nina, G. C. „INVESTIGATION OF PHYSIOCHEMICAL AND STORAGE CONDITIONS ON THE PROPERTIES OF EXTRACTED TIGER NUT OIL FROM DIFFERENT CULTIVARS“. Journal of Microbiology, Biotechnology and Food Sciences 9, Nr. 5 (April 2020): 988–93. http://dx.doi.org/10.15414/jmbfs.2020.9.5.988-993.

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Mohammed, Mohammed Elimam Ahamed, Ali Alsakti, Ahmed Showeal, Aed Alasidi, Akram Ibrahim, Ali M. Alshehri, Hamed A. Ghrmah und Eid I. Brima. „Investigation of altitude effect on some physiochemical properties of milk samples obtained from camels and small ruminants“. Journal of Camel Practice and Research 27, Nr. 1 (2020): 49. http://dx.doi.org/10.5958/2277-8934.2020.00007.7.

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Yadav, Kiran, und Nirat Ray. „Hydrogen adsorption and diffusion through two dimensional aluminium : A first-principles investigation“. Journal of Physics: Conference Series 2518, Nr. 1 (01.06.2023): 012018. http://dx.doi.org/10.1088/1742-6596/2518/1/012018.

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Abstract With the exponentially growing global energy demand, green and clean renewable energy has become the need of the hour. To address the impending energy crisis, hydrogen has been proposed as an efficient and sustainable renewable energy source that has potential to replace conventional sources such as fossil fuels. Owing to their large surface-to-volume ratio and unique physiochemical properties, two-dimensional (2D) materials have been more recently explored for their energy storage potential. In this study, we investigate the adsorption of hydrogen molecule on a two-dimensional, free-standing aluminum monolayer using first-principles density functional theory calculations. We examine adsorption at four high symmetry sites in the honeycomb lattice: T (directly above the Al atom on the surface), D (directly above the Al atom in the buckled layer), H (hollow site at the center of the honeycomb lattice), and X (midway between Al bonds). The movement of hydrogen molecule during diffusion through the honeycomb hollow ring center of the aluminum monolayer is also studied using the Nudged Elastic Band (NEB) approach.

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Singh, Sneha, Bhanu Pratap, Nimit Singh, Alok Kumar Singh und Vivekanand Singh. „Impact of Integrated Nutrient Management of Biochemical Attributeson Aonla (Ebmblica officinallis Garetn.)“. International Journal of Plant & Soil Science 35, Nr. 20 (07.10.2023): 1124–29. http://dx.doi.org/10.9734/ijpss/2023/v35i203909.

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The investigation was carried out with the aim of knowing the effect of integrated nutrient management on the fruiting of Aonla cv. Francis. The Experiment was conducted in two consecutive years. The experiment comprised of thirteen treatments, with three replications with randomized block design. The study revealed the Ascorbic acid, acidity, Organic carbon, Available nitrogen, Available phosphorus, and available potassium per cent for both year was noted maximum with the use of T7, which was at par withT4, T5, T6 and both treatment was significantly superior over rest of the treatment. The study concluded that applying 5% RDF + 30 kg Vermicompost+ 250 g Azotobacter+ 250g PSB, produced good quality fruit, yield and physiochemical attributes of Aonla for sustainable production.

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Harish, G., und M. Shivashankar. „Physiochemical Characterization of Herbo-Metallic NanoMedicine-Abhrak Bhasma by Ayurvedic and Novel Techniques“. Advanced Science Letters 24, Nr. 8 (01.08.2018): 5907–14. http://dx.doi.org/10.1166/asl.2018.12218.

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The Ideal Physicochemical nature of the Bhasma preparation in the Indian System of medicine (ISM) is not as clear required as per the regulatory conditions, hence the analytical studies are one of the significant parts of drug standardization in ISM, such as Siddha, Ayurveda and Unani. The Metallic medicine used in the treatment of disease in human need scientific community for its Authentication, potential development and regulatory aspects. The Present investigation deals with the Physio-chemical evaluation of the ayurvedic medicine Abhrak bhasma by various traditional and novel techniques. In ayurvedic procedure the nature of the bhasmahad been studied by various techniques to determine the quantitative and qualitative level for standardization purpose. In the Present study the Bhasma scrutinized for Physical nature by Varna (Colour), Varitara (Floating), Rekhapurva (furrow filling), Anjana sannibha (softness), Nischandra (Lusterless), Sukshmatva (fineness) and novel techniques such as Nature, Hardness, Solubility, Ash (Acid insoluble), LOD, Assay for determination of percentage silicon dioxide, Heavy metals and arsenic content. The chemical nature is determined by Amla pareeksha (bitter taste), Gatarasatva (absence of taste), Aksharatwa (absence of alkaline taste), Nirdhuma (absence of smoke) and by novel technique such as SEM, Raman spectroscopy, NMR and EDAX. The Abhrak bhasma fulfilled the traditional and novel standardization technique and confirm the presence of Metal oxides of Si, Ca, Fe, Al. NMR studies show the presence of characteristic peak. Therefore the quality of the Abhrak bhasma was customary by both traditional and novel standardization technique.

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Beyene, Hayelom Dargo, Tessema Derbe Hailegebrial und Worku Batu Dirersa. „Investigation of Coagulation Activity of Cactus Powder in Water Treatment“. Journal of Applied Chemistry 2016 (30.11.2016): 1–9. http://dx.doi.org/10.1155/2016/7815903.

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This paper is focused on the comparative study of cactus powder, Alum, and their combination of physiochemical analyses of water sample such as TDS, pH, conductivity, salinity, and turbidity using jar test. The result indicated that percentage removal of turbidity from turbid water sample increased from 23.9% to 54% and 28.46% to 58.2% as dose increased from 0.50 to 3.50 g for both cactus powder and Alum, respectively. Cactus powder also has a marginal effect on pH value (7.33 at 0.50 g, 7.49 at 1.50 g, 7.57 at 2.50 g, and 7.57 at 3.50 g) as compared to the usage of chemical coagulants (Alum). The salinity was increased from 0.4% to 0.69 % and 0.39% to 0.98% as the dose of cactus powder and Alum increased from 0.50 g to 3.50 g, respectively. The result revealed that cactus powder is more effective in pH upholding, TDS maintenance, and salinity removal than Alum, but their combination is the most effective in terms of turbidity removal, reduction of salinity, reduction of conductivity, and reduction of TDS and has a marginal effect on dissolved oxygen (DO) value. In conclusion, the combination of Alum and cactus powder is more effective for turbidity removal, salinity removal, and pH and conductivity upholding than either of them used individually.

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Hameed Rashid ahmed und Hazhar Mohamed Aziz. „Investigation of (Coliform) bacteria and physicochemical Compositions among Different Drinking Water Places in Kifry City“. Al-Qadisiyah Journal Of Pure Science 26, Nr. 3 (10.10.2021): 22–30. http://dx.doi.org/10.29350/qjps.2021.26.3.1435.

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Abstract: During present study, 30 samples of drinking water from five different sources of drilled well from Kifry city have been collected and investigated for the levels of their physiochemical and Microbiological Coliform. Chemical tests were performed include tests of some soluble inorganic ions, such as chloride (Cl1-) and calcium (Ca2+), potassium (K+) sodium (Na+), magnesium (Mg2+). While the conductivity, pH, total dissolved solid (TDS), and turbidity tests belong to the physical tests. The results of chemical and physical test demonstrate the water of drilled wells in study area is possible for drinking according to Iraqi standard limits for drinking water. While their microbiological (coliform) properties have been investigate, the microbiological test includes test (MaCconkey Broth) methodology to coliform for any different drinking water. As well as the international organization World Health Organization (WHO) ranges for qualities of drinking water were used for results comparisons, but the (drilled well) water in Imam Mohamed area isn’t suitable for drinking water, according to the (WHO) ranges for drinking water.

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Chen, Lei, Xiangqian Chen, Yuxiao Zhao, Xinping Xie, Shuangxia Yang, Dongliang Hua, Chuanlei Wang und Tianjin Li. „Effect of Torrefaction on the Physiochemical Characteristics and Pyrolysis of the Corn Stalk“. Polymers 15, Nr. 20 (12.10.2023): 4069. http://dx.doi.org/10.3390/polym15204069.

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Torrefaction of biomass is one of the most promising pretreatment methods for deriving biofuels from biomass via thermochemical conversion processes. In this work, the changes in physicochemical properties and morphology features of the torrefied corn stalk, the changes in physicochemical properties and morphology features of the torrefied corn stalk were investigated. The results of this study showed that the elemental content and proximate analysis of the torrefied corn stalk significantly changed compared with those of the raw corn stalk. In particular, at 300 °C, the volatile content decreased to 41.79%, while the fixed carbon content and higher heating value increased to 42.22% and 21.31 MJ/kg, respectively. The H/C and O/C molar ratios of torrefied corn stalk at the 300 °C were drastically reduced to 0.99 and 0.27, respectively, which are similar to those of conventional coals in China. Numerous cracks and pores were observed in the sample surface of torrefied corn stalk at the torrefaction temperature range of 275 °C–300 °C, which could facilitate the potential application of the sample in the adsorption process and promote the release of gas products in pyrolysis. In the pyrolysis phase, the liquid products of the torrefied corn stalk decreased, but the H2/CO ratio and the lower heating value of the torrefied corn stalk increased compared with those of the raw corn stalk. This work paves a new strategy for the investigation of the effect of torrefaction on the physiochemical characteristics and pyrolysis of the corn stalk, highlighting the application potential in the conversion of biomass.

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Al-Ghouti, Mohammad A., Mariam Khan, Mustafa S. Nasser, Khalid Al Saad und O. O. N. Ee Heng. „Physiochemical characterization and systematic investigation of metals extraction from fly and bottom ashes produced from municipal solid waste“. PLOS ONE 15, Nr. 10 (22.10.2020): e0239412. http://dx.doi.org/10.1371/journal.pone.0239412.

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Selvakumar, Karuppiah, Sakkarapalayam Murugesan Senthil Kumar, Rangasamy Thangamuthu, Kruthika Ganesan, Palanichamy Murugan, Parasmani Rajput, Shambhu Nath Jha und Dibyendu Bhattacharyya. „Physiochemical Investigation of Shape-Designed MnO2 Nanostructures and Their Influence on Oxygen Reduction Reaction Activity in Alkaline Solution“. Journal of Physical Chemistry C 119, Nr. 12 (17.03.2015): 6604–18. http://dx.doi.org/10.1021/jp5127915.

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Li, Ling, Jin-Hong Wu, Li Zhang, Xu Chen, Yan Wu, Jian-hua Liu, Xue-qing Geng, Zheng-Wu Wang und Shao-Yun Wang. „Investigation of the physiochemical properties, cryoprotective activity and possible action mechanisms of sericin peptides derived from membrane separation“. LWT 77 (April 2017): 532–41. http://dx.doi.org/10.1016/j.lwt.2016.12.004.

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