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Climate change effect on water temperature and evaporation in Lake Qarun

Water Science 2023年第1期37卷 1-10页

作者： Seif, Elaf Shokr, Hamad Youssef, Adhm M. Sharaf Eddeen, Mohammed Diab, Yasmeen Imam, Yehya E. Environmental Engineering Program University of Science and Technology Zewail City of Science Technology and Innovation Giza Egypt

Climate change can have significant effects on the water and heat budgets of lakes and reservoirs. This study examined the effect of climate change on Lake Qarun through analyzing the temporal variation in lake surface temperature and evaporation from the lake. The analysis was based on the remote-sensing dataset MOD11A1 and the ERA5 climate reanalysis dataset. Daily surface temperatures for 1-km MOD11A1 pixels were filtered to remove outliers, averaged to obtain mean lake temperature, and then aggregated to compute the monthly average lake temperature. Lake evaporation was estimated by applying an un-mixing algorithm to ERA5 evaporation fluxes for mixed land-lake pixels and land-only pixels. The resulting monthly evaporation from the lake was corrected using a regression model based on evaporation estimates available in the literature for Lake Qarun. The regression model performance was confirmed through the Nash–Sutcliffe efficiency coefficient, correlation coefficient, and root mean square error. Over the period 1980 to 2019, findings show that annual evaporation ranged between 140 and 190 cm/year. Maximum average monthly evaporation for the study period is 21 cm in July while the minimum is 6.7 cm in February from 1980 to 2019. For the average lake surface temperature, it varied between ~31.9 and 33.9°C over the period 2000 to 2019. For the same time period, average maximum and minimum monthly temperatures were 44°C in August and 20.1°C in January. It is concluded that the average increase in evaporation and lake surface temperature is 37 mm/decade and 0.4°C/decade, respectively. The increase in both lake surface temperature and evaporation is likely due to climate change effects. However, using datasets with a larger temporal record for lake surface temperature, further studies can be applied for confirmation. Also, further confirmation can be obtained by applying the same analysis to other lakes in Egypt. © 2023 The Author(s). Published by Informa UK Limited,

关键词： Climate change ERA5 evaporation Lake Qarun MOD11A1

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Characterization of deformation transition in the rolled LZ91 magnesium alloy under tensile loading

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Journal of Magnesium and Alloys 2024年第8期12卷 3173-3179页

作者： Yutaka Yoshida Jun-ichi Shibano Jyunpei Hagikura Ryuhei Misutani Yuto Monden Faculty of Engineering Kitami Institute of TechnologyKoen-choKitamiHokkaido 090-8507Japan Department of Mechanical Engineering Kitami Institute of TechnologyKoenchoKitamiHokkaido 090-8507Japan School of Regional Innovation and Social Design Engineering Intelligent Machines and Biomechanics Course Program Kitami Institute of TechnologyKoen-choKitamiHokkaido 090-8507Japan

In this study,the mechanical behavior of crystal group of hexagonal close-packed(hcp;αphase)and body-centered cubic(bcc;βphase)during tensile loading was investigated to elucidate the mechanism from elastic to plastic deformation transition of the rolled LZ91 Mg alloy using transmission-X-ray diffraction(transmission-XRD)measurement,transmission electron microscopy(TEM),scanning transmission electron microscopy(STEM),energy dispersive X-ray spectroscopy(EDS).The approximate proof stress of the LZ91 Mg alloy sample was found that the lattice strain retained the expanded state from 0.6%nominal strain,and the transmission-XRD measurement characterized the crystalline behavior during the transition by the integrated intensity of crystal group hcp(100).The lattice strain of bcc(110)decreased from the 0.6%nominal strain due to dislocation activity,which occurred nearβ/βgrain *** addition,we performed the analyses of electron energy loss spectroscopy(EELS)modes,the Li-K peak disappeared from the segregated Li regions of 10–60 nm nearβ/βgrain boundary at the nominal strain of 0.8%.Understanding this mechanical behavior during the elastic to plastic deformation transition by transmission-XRD is crucial for the development of Mg-Li alloys.

关键词： Magnesium-lithium alloy Plastic deformation X-ray diffraction Scanning/transmission electron microscopy Electron energy loss spectroscopy

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Anisotropy-driven velocity log reconstruction in deviated wells: A case study from deepwater Sadewa Field

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Leading Edge 2023年第10期42卷 702-710页

作者： Oktariena, Madaniya Triyoso, Wahyu Sukmono, Sigit Fatkhan, Fatkhan Septama, Erlangga Wardaya, Pongga D. Murdianto, Befriko S. 1 Bandung Institute of Technology Graduate Program of Geophysical Engineering Bandung Indonesia Bandung Institute of Technology Geophysical Engineering Bandung Indonesia Upstream Research & Technology Innovation Jakarta Indonesia Pertamina Hulu Kalimantan Timur Jakarta Indonesia

Deviated drilling is a common cost-cutting strategy used in efforts to develop deepwater hydrocarbon fields. By utilizing the existing platform, new wells are drilled with a particular inclination to reach the intended depth level as a branch of the main vertical well. Drilling at inclination results in a change in the direction of observation from data collection. This change will affect the measured magnitude value when well logging is carried out, especially on physical parameters sensitive to the direction of the measurement such as velocity. Distortion of velocity values due to the orientation effect of data collection has been a limiting factor in seismic analysis because of phase changes during the well-to-seismic tie, inconsistent amplitude variation with offset responses, and ambiguity in the appearance of the hockey stick effect on long-offset seismic data. The oil and gas industry is starting to move toward developing concepts that link the presence of anisotropy recorded in field data with the possibility of hydrocarbon reservoirs. Velocity logging (sonic and shear sonic) should begin to get more attention to support this strategy of making data retrieval results more precise. The motivation of this study is to apply the method of calculating velocity compensation values to reconstruct sonic and shear sonic logs in deviated wells by utilizing anisotropy parameters. By reconstructing the velocity log, the authors attempt to verticalize the log to return the log function to represent subsurface conditions. © 2023 by The Society of Exploration Geophysicists.

关键词： Anisotropy

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A New Modified EWMA Control Chart for Monitoring Processes Involving Autocorrelated Data

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Intelligent Automation & Soft Computing 2023年第4期36卷 281-298页

作者： Korakoch Silpakob Yupaporn Areepong Saowanit Sukparungsee Rapin Sunthornwat Department of Applied Statistics Faculty of Applied ScienceKing Mongkut’s University of Technology North BangkokBang SueBangkok10800Thailand Industrial Technology and Innovation Management Program Faculty of Science and TechnologyPathumwan Institute of TechnologyPathumwanBangkok10330Thailand

Control charts are one of the tools in statistical process control widely used for monitoring,measuring,controlling,improving the quality,and detecting problems in processes in variousﬁ*** average run length(ARL)can be used to determine the efﬁcacy of a control *** this study,we develop a new modiﬁed exponentially weighted moving average(EWMA)control chart and derive explicit formulas for both one and the two-sided ARLs for a p-order autoregressive(AR(p))process with exponential white noise on the new modiﬁed EWMA control *** accuracy of the explicit formulas was compared to that of the well-known numerical integral equation(NIE)*** both methods were highly consistent with an absolute percentage difference of less than 0.00001%,the ARL using the explicit formulas method could be computed much more ***,the performance of the explicit formulas for the ARL on the new modiﬁed EWMA control chart was better than on the modiﬁed and standard EWMA control charts based on the relative mean index(RMI).In addition,to illustrate the applicability of using the proposed explicit formulas for the ARL on the new modiﬁed EWMA control chart in practice,the explicit formulas for the ARL were also applied to a process with real data from the energy and agriculturalﬁelds.

关键词： Autoregressive process new modiﬁed EWMA average run length(ARL) numerical integral equation(NIE)

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Comparison on Efficiency of Iron and Aluminum Nanoparticles for Methylene Blue Removal from Aqueous Solutions

Comparison on Efficiency of Iron and Aluminum Nanoparticles ...

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2023 AIChE Annual Meeting

作者： Mostafa, Mohamed K. Sadek, Ahmed H. Cairo Egypt Environmental Engineering Program Zewail City of Science Technology and Innovation Giza Egypt Giza Egypt

This review demonstrates a comparative study of methylene blue (MB) dye removal from aqueous solutions using zero-valent iron (nZVI) and zero-valent aluminum (nZVAl) nanoparticles. The results indicated that at pH 6, nZVI dosage 10 g/L, initial MB concentration 10 mg/L, temperature 30 °C, and stirring rate 150 rpm, the equilibrium time was 30 min achieving a removal efficiency of approximately 100% for nZVI. While for nZVAl, the results indicated that at an initial MB concentration of 10 mg/L, pH 10, nZVAl dosage 1.0 g/L, stirring rate 200 rpm, and temperature 30 °C, the removal efficiency of approximately 99.0% was achieved within an equilibrium time of 90 min. Moreover, the adsorption data of MB fitted well to the Freundlich isotherm model (R2: 0.9358) and pseudo-second-order kinetic model (R2: 0.9976) for adsorption by nZVI. Also, the isotherm adsorption data were best fitted by the Freundlich isotherm model (R2: 0.9569), while the kinetic data were well described by the pseudo-second-order model (R2: 0.9999) for adsorption by nZVAl. From the aforementioned results, it is clear that both nZVI and nZVAl showed very high efficiency in removing methylene blue from aqueous solutions with a slight difference in favor of nZVI. © 2023 American Institute of Chemical Engineers. All rights reserved.

关键词： Aluminum

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Meteorological Prediction Using Cloud's Images 12

Meteorological Prediction Using Cloud's Images

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12th International Electrical Engineering Congress, iEECON 2024

作者： Ongkittikul, Surachai Jundang, Nattapong Panyokaew, Thanayut Department Of Computer Engineering Mahanakorn Institute Of Innovation Faculty Of Engineering And Technology Mahanakorn University Of Technology Bangkok Thailand Mahanakorn University Of Technology Engineering Program In Computer Engineering And Artificial Intelligence Faculty Of Engineering And Technology Bangkok Thailand

ISBN: (纸本)9798350383591

This paper uses YOLO deep learning to create a predict system for Meteorological Service for Air Navigation with a total of 5 types of forecast results: BKN, CAVOK, FEW, OVER and SCT. Indicative information for evaluating the image is observing the nature of the clouds arranged together and comparing them to quantities in the sky using the unit of measurement 'okta', which is divided into 8 parts of the image. Therefore, the nature of using deep learning in the article is to teach deep learning to recognize various image characteristics both during the day and at night in order to use the results of the forecast to inform the weather conditions in the sky. The process in this article consists of 3 steps: The first step is to train the data with images with different characteristics from the 5 data types. The next step is to test the accuracy of the weights generated from the training and training steps. The final step is to use water values to create a decision-making system for users. From the experiment, private dataset in this paper, more than 2500 images were used to participate in the experiment. The results of the experiment found that the average results of precision, recall, mAP50, and mAP50-95 could be measured at 84.7%, 92.1%, 95.7%, and 95.3%, respectively. © 2024 IEEE.

关键词： Air navigation

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MT-InSAR Optimisation for Structural Health Monitoring 11

MT-InSAR Optimisation for Structural Health Monitoring

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11th European Workshop on Structural Health Monitoring, EWSHM 2024

作者： Kuai, Hao Macchiarulo, Valentina Sharma, Satyadhrik Karamitopoulos, Pantelis Messali, Francesco Giardina, Giorgia Delft University of Technology Stevinweg 1 Delft2628 CN Netherlands City of Amsterdam Program of Bridges and Quay Walls Team Innovation Amsterdam Netherlands

The implementation of effective and sustainable Structural Health Monitoring (SHM) systems for the evaluation of infrastructure conditions is critical to address the deterioration and damage experienced by structures worldwide. Given the vast number of structures involved, resorting to traditional in-situ visual inspections and data gathering methods is becoming increasingly unfeasible. Multi-Temporal Interferometric Synthetic Aperture Radar (MT-InSAR) has recently gained attention as a viable solution for long-term SHM. This remote sensing technique combines multiple satellite radar images to measure changes in the Earth's surface over time. Unlike conventional techniques, MT-InSAR does not require in-situ installations and offers extensive coverage, enabling observations across diverse location and structures. However, the applicability of MT-InSAR monitoring depends on the relatively unpredictable distribution and location of permanent scatterers (PSs), which are influenced by surface characteristics and vegetation changes. Evaluating the reliability and capacity of MT-InSAR is therefore crucial to enhance its effectiveness in assessing the location and extent of structural damage. In this study, we present an effective approach to determine the optimal number and position of PSs for detecting different structural damage mechanisms. The approach is exemplified through a case study of a quay wall in Amsterdam, with data inputs simulated using the Finite Element Method. The proposed method has the potential to evaluate the feasibility of MT-InSAR for a broader range of scenarios, enabling to detect specific structural conditions. © 2024 11th European Workshop on Structural Health Monitoring, EWSHM 2024. All rights reserved.

关键词： Quay walls

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Extracorporeal membrane oxygenation versus conventional therapy in patients with acute respiratory failure: systematic review with meta-analysis

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Research on Biomedical Engineering 2024年第3-4期40卷 835-849页

作者： de Souza, Daniel Baldoino Barreto, Cassiana Gabriela Lima Milagre, Selma Terezinha Pereira, Adriano Alves University Hospital of the Federal University of Santa Catarina Florianópolis Brazil Centre for Innovation and Technology Assessment in Health Faculty of Electrical Engineering Postgraduate Program in Electrical and Biomedical Engineering Federal University of Uberlândia Uberlândia Brazil

Background: Acute respiratory distress syndrome (ARDS) is a severe condition where lung alveoli fill with fluid, depriving organs of oxygen and risking death. Mechanical ventilation is conventional for oxygen therapy, but extracorporeal membrane oxygenation (ECMO) may be needed for refractory ARDS cases. This study aims to compare ECMO's impact on mortality and hospital stay versus conventional treatment for patients aged 12 or older with moderate or severe ARDS in intensive care units (ICUs). Methodology: Four independent reviewers followed the PRISMA-P method for the review. The key question used the PICOS tool. Databases searched included Cochrane Library, Bireme, MEDLINE, EMBASE, Web of Science, Scielo, LILACS, and grey literature to minimize publication bias. Selected papers were randomized controlled trials (RCTs) without language restrictions, meeting predefined inclusion and exclusion criteria. RoB-2 assessed bias risk, and GRADE evaluated evidence quality. Mortality was analyzed using a fixed-effect PETO method (odds ratio), and hospital stay was treated as a continuous variable using inverse variance and standardized mean difference (SMD). Results: We found 3,774 articles and selected 6 studies with 1,050 participants. Of these, 519 were allocated to the intervention group (ECMO) and 531 to the conventional treatment group (MV). The risk of bias for 3 studies was "some concerns," and 3 were "high risk of bias," mainly due to "deviations from intended/planned interventions" and "selection of reported outcomes." The primary outcomes for 30-day, 60-day, 90-day, and 180-day mortality showed odds ratios of 0.90 (95% CI: 0.66–1.21), 0.78 (95% CI: 0.50–1.21), 0.90 (95% CI: 0.66–1.21), and 0.62 (95% CI: 0.36–1.06) respectively, with low heterogeneity (I2 0.10). The secondary outcomes for a total length of stay and ICU stay showed standardized mean differences of 0.39 (95% CI: 0.13–0.65) and 0.33 (95% CI: 0.05–0.60) respectively, with substantial heterogeneity (I2

关键词： Risk assessment

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Deep-learning-assisted medium optimization improves hyaluronic acid production by Streptococcus zooepidemicus

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Journal of Bioscience and Bioengineering 2025年第6期139卷 429-435页

作者： Watanabe, Kazuki Kawai, Yoshizumi Kagenishi, Tomoko Chiou, Tai-Ying Konishi, Masaaki Department of Biotechnology and Environmental Chemistry of Engineering Kitami Institute of Technology 165 Koen-cho Hokkaido Kitami090-8507 Japan Biotechnology and Food Chemistry Course Program School of Regional Innovation and Social Design Engineering Kitami Institute of Technology 165 Koen-cho Hokkaido Kitami090-8507 Japan

To improve the efficiency of hyaluronic acid production by Streptococcus zooepidemicus, the growth medium was optimized with a pipeline involving a deep learning (DL) algorithm. To train the DL model, the initial training dataset (OA01–18) was designed with the L18 orthogonal array, and hyaluronic acid (HA) was produced in small-scale cultures in deepwell plates. The range of HA production was 0.09–1.39 g/L under these conditions. In searching for the optimal medium composition, 54 candidate optimized media (OM01–54) were proposed by the system. According to the confirming culture experiment, the best production of HA (1.66 g/L) was achieved with OM30. During confirmation in a stirred-tank reactor, the volumetric production of HA in OA30 was larger than that in the control medium. In fed batch culture, HA accumulated to 5.13 and 9.96 g/Linitial volume after 10 and 30 h in culture, respectively. To avoid the suppression of HA production by the high viscosity of the medium conferred by HA, repeated batch culture with OM30 was performed by replacing 90 % of the broth volume approximately every 6 h. As a result, 21.4 g of HA was produced in 46 h, and productivity reached 0.465 g/Linitial volume/h. © 2025 The Society for Biotechnology, Japan

关键词： Batch cell culture

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Edible coating from VCO, iota-carrageenan and alginate blends for pindang fish preservation

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Green Materials 2023年第1期13卷 3-16页

作者： Iswahyuni, Hana Suyatma, Nugraha Edhi Wulandari, Nur Irianto, Hari Eko Dewi, Fera Roswita Nurhayati Sinurat, Ellya Nurbayasari, Rodiah Giyatmi Fransiska, Dina Analyst Ministry for Marine Affairs and Fisheries IPB University Bogor Indonesia Master of Food Technology Study Program Graduate School IPB University Bogor Indonesia Department of Food Science and Technology Faculty of Agricultural Engineering and Technology IPB University Bogor Indonesia Research Center for Marine and Land Bioindustry National Research and Innovation Agency of the Republic of Indonesia Lombok Indonesia Food Technology Study Program Faculty of Food Technology and Health Sahid University Jakarta Indonesia Research Center for Applied Microbiology National Research and Innovation Agency of the Republic of Indonesia Cibinong Indonesia

This study aims to develop an edible coating based on virgin coconut oil (VCO) nanoemulsion, iota-carrageenan and alginate to prolong the shelf life of pindang (mildly salted cooked) fish products. The research involved three stages: material preparation, characterization and determination of factors and responses for experimental design;parameter optimization to achieve optimal conditions;and application and analysis of pre- and post-coating characteristics of pindang fish. The parameter ranges were 0.5–1.5% for alginate concentration, 0.5–1.5% for iota-carrageenan concentration and 0.5–1.0% for VCO nanoemulsion concentration. The result of this study was an optimized food coating solution that was clear and bright white in color. Pindang fish coated with this layer showed improved quality in terms of water content (48.46%), weight loss (0.39%), pH (5.84), total volatile base (47.01%), salt content (2.9%), appearance (7), texture (7) and slime (7). At the same time, the total bacterial count remained unchanged (8 log colony-forming units (CFU)/g), the mold count remained unchanged (5 log CFU/g) and the aroma and taste received a score of 6. Thus, this study successfully produced an optimized edible coating that can enhance the quality and extend the shelf life of pindang fish, making it suitable for broader market distribution. © 2023 ICE Publishing. All rights reserved.

关键词： Fish

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