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8521
Characteristics of Water Pollution and Evaluation of Water Quality in Subsidence Water Bodies in Huainan Coal Mining Areas, China
Published 2022-01-01“…Single-factor evaluation, comprehensive pollution index, the universal exponential formula of logarithmic power function, and membership degree method were used to evaluate the five important water quality indicators, namely total nitrogen, ammonia nitrogen, total phosphorus, dissolved oxygen, and chemical oxygen demand. The results showed that the total nitrogen pollution in the study area was more serious, most of the sites exceed class V standards of the surface water, S14 and S16 were heavily polluted. …”
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8522
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8523
Analysis of Five Earthy-Musty Odorants in Environmental Water by HS-SPME/GC-MS
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8524
Peculiarities of identification and customs commodity examination of children’s goods
Published 2024-06-01“…State-of-the-art research methods, in particular, visual inspection, functional tests, measurement of geometric parameters, mechanical tests, chemical analysis of materials, technical expertise, safety tests, computer modeling and analysis, electrical and electronic tests, expert evaluation are used to establish indicators. quality and safety of goods and obtaining objective information. …”
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8525
Comparing Circadian Dynamics in Primary Derived Stem Cells from Different Sources of Human Adult Tissue
Published 2017-01-01“…The more primitive dental pulp-derived stem cells did not respond as well to the chemical synchronisation but showed temporal clock gene oscillations following rhythmic mechanical stretch, suggesting that incorporating temporal circadian information of different human adult stem cells will have profound implications in optimising tissue engineering approaches and stem cell therapies.…”
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8526
Development and In Vitro Characterization of Hyaluronic Acid-Based Coatings for Implant-Associated Local Drug Delivery Systems
Published 2013-01-01“…In this context, we investigated several plasma- and wet-chemical methods for the deposition of HA-based coatings with LDD function on polyamide 12 as a model implant surface, conventionally used for DCB. …”
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8527
Evaluation of Polyethylene-Based Long Lasting Treated Bed Net Netprotect on Anopheles Mosquitoes, Malaria Incidence, and Net Longivity in Western Kenya
Published 2013-01-01“…We studied the effect on malaria incidence, mosquito abundance, net efficacy, net use rate, chemical analysis, and holes of a long lasting insecticide treated bed net (Netprotect) in western Kenya, 2007–2010. …”
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8528
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8529
Long-Term Biostability of Pet Vascular Prostheses
Published 2012-01-01“…PET Vascular prostheses are susceptible to physical modification and chemical degradation leading sometimes to global deterioration and rupture of the product. …”
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8530
Paleoproterozoic post-orogenic magmatism in southern Finland; geochemical, geochronological and Sr-Nd isotopic constraints on origin and magmatic evolution
Published 2025-01-01“…These rocks have distinctive field, mineralogical, chemical, geochronological and isotopic characteristics compared to the other plutonic rocks in the area. …”
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8531
Unveiling the potential of Aspergillus terreus SJP02 for zinc remediation and its driving mechanism
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8532
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8533
Lake Uluabat Point Pollutant Sources and Pollution Loads
Published 2020-07-01“…The monitored parameters were suspended solids (SS), chemical oxygen demand (COD), biological oxygen demand (BOD), ammonium nitrogen (NH4-N), nitrate nitrogen (NO3-N), total nitrogen (TN), phosphate phosphorus (PO4-P) and total phosphorus (TP) parameters. …”
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8534
Waste oil management: Analyses of waste oils from vehicle crankcases and gearboxes
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8535
Investigating the Potential of Using Soya Beans Powder as a Natural Coagulant.
Published 2023“…This is aimed at identifying Soya beans powder as a possible replacement for alum and other chemical coagulants in treating water. Laboratory scale studies using jar test experiments were performed water collected from the sedimentation tank whose source was River Rwizi with detention time of 2 hrs. to determine the effect of varied dosages from 5mg/l to 30mg/l for both soya beans powder and alum on coagulation. …”
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8536
Assessment of the Effect of Rosemary on Tomato Preservation.
Published 2024“…Despite the nutritional and economic importance of tomatoes, significant post-harvest losses persist, exacerbated by concerns over synthetic chemical preservatives' environmental and health impacts. …”
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8537
Antibacterial Properties of Phytochemicals Isolated from Leaves of Alstonia boonei and Aerial Parts of Ipomoea cairica.
Published 2024“…Methods: The plant materials were separately extracted using a dichloromethane/methanol (1:1) solvent system and subjected to repeated chromatographic separation to isolate pure compounds. The chemical structures of the isolated compounds were determined through 1 H NMR, 13C NMR and 2D NMR (COSY, HSQC and HMBC). …”
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8538
Investigating the Effect of Wood Charcoal Dust as Partial Replacement for Cement in Plain Concrete.
Published 2024“…The slump test results showed a decrease in workability as the WCD content increased, and the compressive strength declined with higher WCD replacement levels. Chemical analysis revealed that WCD contains pozzolanic materials, with a combined SiO₂, Al₂O₃, and Fe₂O₃ content of 20.69%. …”
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Thesis -
8539
Determination of Optimum Quantity of Cassava Peel Ash (CPA) as Partial Replacement of Cement for Maximum Concrete Strength and its Cost Analysis.
Published 2024“…The cassava peels were sundried and burnt into ash in the furnace at 700-800oc and their chemical and physical properties were studied using the X-ray Fluorescence method which was found to contain elements such as calcium dioxide 85.677%, iron (iii) oxide 5.662%, silicon dioxide 3.517%, potassium oxide 1.731%, aluminum oxide 1.515% manganese(ii) oxide 0.803%, phosphorous pent oxide 0.456%, titanium oxide 0.310%, chromium (ii) oxide 0.143%, and magnesium oxide 0.109%. blended pastes containing OPC and 45 cubes were caster with cassava peel ash (CPA) at different percentage replacement, 0%, 5%, 10%, 15%, and 20% were investigated for consistency, initial and final setting time for the blended paste CPA- OPC pastes and dry density of cubes and compressive strength of grade 25 (C25) Concrete. …”
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8540
Comparative Study on the Preservation Efficacy of Rosemary Extracts and Conventional Preservatives on Tomatoes.
Published 2025“…Traditional preservation methods like synthetic chemical preservatives have been effective but raise health concerns. …”
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Thesis