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6941
Thermodynamic, Economic and Maturity Analysis of a Carnot Battery with a Two-Zone Water Thermal Energy Storage for Different Working Fluids
Published 2024-01-01“…A transcritical process with <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>CO</mi><mn>2</mn></msub></semantics></math></inline-formula> is applied for charging, while discharging employs a transcritical process with <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>CO</mi><mn>2</mn></msub></semantics></math></inline-formula> and six refrigerants operating in a subcritical process. The transcritical process with <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msub><mi>CO</mi><mn>2</mn></msub></semantics></math></inline-formula> and the four most promising subcritical processes are compared regarding round trip efficiency and levelized cost of electricity (LCOE) depending on the pinch points 5 K and 1 K in the heat exchangers. …”
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6942
Prevalence and associated factors of common childhood illnesses in sub-Saharan Africa from 2010 to 2020: a cross-sectional study
Published 2022-11-01“…On the other hand, children from older age mothers, children from the richest household and children from large family sizes, and having media access, electricity, a refrigerator and improved toilets were negatively associated.Conclusions The prevalence of common illnesses among under-5 children was relatively high in sub-Saharan African countries. …”
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6943
Temperature Elevation during Semen Delivery Deteriorates Boar Sperm Quality by Promoting Apoptosis
Published 2023-10-01“…Another one was packaged in a well-sealed Styrofoam box and placed in an incubator at 37 °C for 24 h to simulate semen delivery on hot summer days and subsequently transferred to a refrigerator at 17 °C for 3 days. The semen temperature was continuously monitored. …”
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6944
Development and deployment of a supply-chain digital tool to predict fluid-milk spoilage due to psychrotolerant sporeformers
Published 2023-12-01“…The Monte Carlo simulations predicted that 44.3% of half-gallons of milk were spoiled (defined as having a bacterial concentration >20,000 cfu/mL, a conservative estimate that represents the Pasteurized Milk Ordinance regulatory limit) after 21 d of refrigerated storage at consumer's home. Model validations showed that the model was the most accurate in predicting the mean sporeformer concentration at low temperatures (i.e., at 3°C and 4°C; compared with higher temperatures at 6°C and 10°C) within the first 21 d of consumer storage, with a root mean square error of 0.29 and 0.34 log10 cfu/mL, respectively. …”
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6945
Performance Evaluation of Wire Cloth Micro Heat Exchangers
Published 2020-02-01“…The purpose of this study is to validate a thermal-hydraulic simulation model for a new type of heat exchanger for mass, volume, and coolant/refrigerant charge reduction. The new heat exchanger consists of tubes with diameters in the range of 1<inline-formula> <math display="inline"> <semantics> <mi mathvariant="normal">m</mi> </semantics> </math> </inline-formula><inline-formula> <math display="inline"> <semantics> <mi mathvariant="normal">m</mi> </semantics> </math> </inline-formula> and wires in the range of 100<inline-formula> <math display="inline"> <semantics> <mi mathvariant="normal">m</mi> </semantics> </math> </inline-formula>, woven together to form a <inline-formula> <math display="inline"> <semantics> <mrow> <mn>200</mn> <mo>×</mo> <mn>200</mn> <mo>×</mo> </mrow> </semantics> </math> </inline-formula>80<inline-formula> <math display="inline"> <semantics> <mi mathvariant="normal">m</mi> </semantics> </math> </inline-formula><inline-formula> <math display="inline"> <semantics> <mi mathvariant="normal">m</mi> </semantics> </math> </inline-formula><inline-formula> <math display="inline"> <semantics> <msup> <mrow></mrow> <mn>3</mn> </msup> </semantics> </math> </inline-formula> wire cloth heat exchanger. …”
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6946
An assessment of Post-Harvest Fish Losses (PHFLs) in the artisanal fishery of Lake Kariba, Zimbabwe
Published 2022-07-01“…The traditional fish preservation methods employed in this fishery did not have negative impact on the nutritional composition of fish. The use of ice, refrigerators, salting and sun drying are recommended as preservation methods in the artisanal fishery. …”
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6947
Low Fat Yoghurts Produced with Different Protein Levels and Alternative Natural Sweeteners
Published 2024-01-01“…Sucrose (6% <i>w</i>/<i>w</i>) was used as a control in both trials. pH and titratable acidity, CIEL*a*b* color parameters, syneresis index, rheology and the texture profile of the low-fat yoghurts were evaluated over refrigerated storage. All products underwent sensory evaluation by an untrained panel. …”
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6948
Combined Impacts of Initial Freezing Rate and Thawing/Cooking Conditions on Physicochemical and Textural Properties of Pork Patties
Published 2023-08-01“…This study aimed to investigate the combined impact of freezing rates (slow freezing rate [SFR]: 0.06°C/min; fast freezing rate [FFR]: 0.45°C/min; ultra-fast freezing rate [UFR]: 1.20°C/min) and thawing methods (cooking from frozen state [UTC]; water immersion in a 25°C water bath [WAT]; refrigerator at 2°C [RFT] until the core temperature reaches 2°C) on the physicochemical and texture characteristics of cooked pork patties. …”
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6949
Nutrition Value of Baked Meat Products Fortified with Lyophilized Dragon Fruit (<i>Hylocereus undatus</i>)
Published 2023-09-01“…Additionally, characteristics typical for meat products, such as pH, water activity, oxidation-reduction potential or thiobarbituric acid reactive substances, and antioxidant properties of the product during 21 days of refrigerated storage, were assessed. The findings indicate that the use of higher doses of lyophilizate, i.e., in the amounts of 2.5% and 4%, significantly (<i>p</i> < 0.05) increases the nutritional value of meat products, leading to an increase in the concentration of essential minerals important for the proper functioning of the human body (calcium, magnesium, potassium, and iron). …”
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6950
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6951
Predicting chiller system parameters using artificial neural networks : an experimental study
Published 2020“…Temperature, Pressure and Flow rate of Water and Refrigerant is the key parameters collected through sensors. …”
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Thesis-Master by Coursework -
6952
Surface decontamination of fresh-cut pennywort (Centella asiatica L.) leaves through pulsed light technology and acidic electrolysed water
Published 2022“…Thus, this research aimed to extend the shelf life of fresh-cut pennywort by the potential applications of pulsed light (PL) treatment and acidic electrolysed water (AEW) in reducing microbial load, retain physicochemical qualities, physiological changes, nutritional values and acceptance of sensory quality during refrigerated storage. The reduction of inoculated Escherichia coli on the pennywort leaves after exposure to PL was examined and viewed using the scanning electron microscopy. …”
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Thesis -
6953
Performance of UVC irradiation with dean vortex technology on clear and turbid tamarind (Tamarindus indica l.) juice
Published 2016“…Contradictory, thermal treatments successfully retained microbial loads to below detection level during refrigerated storage. In conclusion, the existing UVC treatment may not be a suitable alternative in replacing thermal pasteurisation especially for long-term storage.…”
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Thesis -
6954
Shelf Life and Quality Attributes Of Fresh Beef Infused With Organic Acids.
Published 2005“…It has a shelf life of one day at ambient temperature and a few days at refrigerated temperature. This study was conducted with the objective of extending the shelf life of fresh beef by infusing organic acids such as citric, tartaric, acetic and lactic acids, and combination of the organic acids with sodium chloride. …”
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Thesis -
6955
Analysis of outcomes of the frictional pressure drop prediction using different data source
Published 2016“…Thus, new correlations are continuously being developed to generalize their applications across refrigerants and flow regimes. The friction factor is dependent on the Reynolds number and relative roughness, therefore consequently depends on the applied equation and fluid data. …”
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6956
Determinants of food preparation and hygiene practices among caregivers of children under two in Western Kenya: a formative research study
Published 2022-10-01“…Barriers to food hygiene and preparation practices included lack of psychological capability, for instance, caregivers’ lack of knowledge of critical times for handwashing, lack of perceived importance of washing some foods before eating, and not knowing the risks of storing food for more than four hours without refrigerating and reheating. Other barriers were opportunity-related, including lack of resources (soap, water, firewood) and an enabling environment (monetary decision-making power, social support). …”
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6957
Revealing new tick-borne encephalitis virus foci by screening antibodies in sheep milk
Published 2020-04-01“…TBEV infectivity in refrigerated milk was preserved, emphasising the importance of pasteurisation (i.e. 72 °C for 15 s) prior to consumption.…”
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6958
Probiotic Properties of <i>Lactobacillus fermentum</i> InaCC B1295 Encapsulated by Cellulose Microfiber from Oil Palm Empty Fruit Bunches
Published 2022-11-01“…Based on its resistance to hydrogen peroxide, ability to scavenge DPPH radicals, and activity in scavenging hydroxyl radicals, LFB1295 encapsulated with CMF hydrogel of OPEFB exhibits antioxidant properties as good as the scavenging ability of DPPH radicals with IC<sub>50</sub> of 36.880, 188.530, and 195.358 µg/mL, respectively, during storage for 0, 14, and 28 days at room and refrigerated temperature. Furthermore, hydroxyl radicals (HR)-scavenging activity showed an increased inhibition along with the increasing concentration of the Fenton reaction and decreasing concentration of cell-free supernatant (CFS) during storage time. …”
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6959
Chemical composition, antioxidant and antibacterial activity of Piper chaba stem extracts with preservative effects on storage of raw beef patties
Published 2023-06-01“…They were then assessed for various storage quality parameters under refrigerated (4° C ± 1° C) conditions, including free fatty acid, antioxidant contents, and oxidative stability at 0, 6th, 16th, and 33rd days. …”
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6960
Overcoming the incumbency and barriers to sustainable cooling
Published 2022-12-01“…Achieving sustainable cooling requires navigating the opportunities and barriers presented by the incumbent technology that currently dominates the way in which cooling is provided—the vapour-compression refrigerant technology (or air-conditioners). Air-conditioners remain the go-to solution for growing cooling demand, with other alternatives often overlooked. …”
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