Sci最新文献 - Book学术

Design and Construction and Energy Consumption Study of a New Electrolyzed Water Cell Generator Prototype for Food Disinfection 用于食品消毒的新型电解水电池发生器原型的设计建造和能耗研究

Sci Pub Date : 2024-07-20 DOI: 10.3390/sci6030043

Simona Marianna Sanzani, P. Catalano, Gianluca Tanucci, F. Giametta, B. Bianchi

引用次数: 0

Ammasso Silo Characterization and Repurposing 安马索筒仓的特征描述和再利用

Sci Pub Date : 2024-07-20 DOI: 10.3390/sci6030042

Víctor Marcelo, Salvatore Faugno, Francisco Javier López-Díez, P. Pastrana, J. B. Valenciano

{"title":"Ammasso Silo Characterization and Repurposing","authors":"Víctor Marcelo, Salvatore Faugno, Francisco Javier López-Díez, P. Pastrana, J. B. Valenciano","doi":"10.3390/sci6030042","DOIUrl":"https://doi.org/10.3390/sci6030042","url":null,"abstract":"Italy built its ammasso silo network in the 1930s for two purposes: to stockpile grain and to symbolize fascist power. Much of the network was destroyed in World War II, and over half of the silos still standing are now disused and in disrepair. These structures should be protected and refurbished because they are part of Italy’s historic and agro-industrial heritage and because reusing existing buildings instead of constructing new ones reduces the carbon footprint. To evaluate silo repurposing potential, a method developed for inventorying Spanish silos was adapted and applied to the 30 remaining ammasso silos. The method explores the general features, construction, equipment, and socioeconomic environment of each silo. All extant ammasso silos have machinery for receiving, storing, and dispatching grain, and most have equipment for cleaning, sorting, weighing, and packaging. Vertical-cell silos are challenging to convert, unlike horizontally-oriented silos and other open-plan agro-industrial buildings. Even so, some have already been made over into shops, leisure areas, museums, and even homes. Examples of silo reuse in other countries, such as Spain and Portugal, can offer further useful insights. However, socio-economic indicators suggest that silo repurposing projects are viable only in large population centres.","PeriodicalId":510703,"journal":{"name":"Sci","volume":"117 31","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141820199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of Automated Hydrostatic Pressure-Based Densitometer with a Calibrated Pressure Sensor 利用校准压力传感器制造基于静水压力的自动密度计

Sci Pub Date : 2024-07-18 DOI: 10.3390/sci6030041

D. Jayakantha, K. Gamage, Navaratne Bandara, Migara Karunarathne, Madushani Seneviratne, E. Comini, D. Zappa, Nanda Gunawardhana

{"title":"Fabrication of Automated Hydrostatic Pressure-Based Densitometer with a Calibrated Pressure Sensor","authors":"D. Jayakantha, K. Gamage, Navaratne Bandara, Migara Karunarathne, Madushani Seneviratne, E. Comini, D. Zappa, Nanda Gunawardhana","doi":"10.3390/sci6030041","DOIUrl":"https://doi.org/10.3390/sci6030041","url":null,"abstract":"An automated device is designed to measure the density of a liquid material using hydrostatic pressure method. A low cost pressure sensor is calibrated and used to get highly accurate readings. The calibration is done by measuring the pressure values vs. the generated voltage signal. The calibration has been challenging due to the low accuracy of the sensor but proved to be highly effective in applications. The interface is developed using a microcontroller, motor drives, analog to digital converters and sensors. The device is designed to get several readings automatically by changing the positions of the device/liquid column heights to increase the accuracy. Also the device can be programmed to measure the real time density of a liquid continuously. The readings were analyzed and averaged by a software developed in python language. The instruments accuracy was tested against 3 liquid types, water, coconut oil, kerosene oil, and showed a low error (0.007%, 0.001%, and 0.002% respectively) compared to the readings of a standard Pycnometer. The low error percentages confirm the accuracy of the device and the effectiveness of the sensor calibrations.","PeriodicalId":510703,"journal":{"name":"Sci","volume":" 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141826513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modal Identification Techniques for Concrete Dams: A Comprehensive Review and Application 混凝土大坝的模态识别技术：全面回顾与应用

Sci Pub Date : 2024-07-15 DOI: 10.3390/sci6030040

Hasan Mostafaei

引用次数: 0

Connecting Soft and Hard: An Integrating Role of Systems Dynamics in Tsunami Modeling and Simulation 软硬结合：系统动力学在海啸建模和模拟中的综合作用

Sci Pub Date : 2024-07-11 DOI: 10.3390/sci6030039

M. Zanker, B. Alhasnawi, František Babič, Vladimír Bureš, P. Čech, M. Husáková, P. Mikulecký, Tomáš Nacházel, Daniela Ponce, Salman Iqbal, B. E. Sedhom

{"title":"Connecting Soft and Hard: An Integrating Role of Systems Dynamics in Tsunami Modeling and Simulation","authors":"M. Zanker, B. Alhasnawi, František Babič, Vladimír Bureš, P. Čech, M. Husáková, P. Mikulecký, Tomáš Nacházel, Daniela Ponce, Salman Iqbal, B. E. Sedhom","doi":"10.3390/sci6030039","DOIUrl":"https://doi.org/10.3390/sci6030039","url":null,"abstract":"Modeling and simulation have been used to study tsunamis for several decades. We created a review to identify the software and methods used in the last decade of tsunami research. The systematic review was based on the PRISMA methodology. We analyzed 105 articles and identified 27 unique software and 45 unique methods. The reviewed articles can be divided into the following basic categories: exploring historical tsunamis based on tsunami deposits, modeling tsunamis in 3D space, identifying tsunami impacts, exploring relevant variables for tsunamis, creating tsunami impact maps, and comparing simulation results with real data. Based on the outcomes of this review, this study suggests and exemplifies the possibilities of system dynamics as a unifying methodology that can integrate modeling and simulation of most identified phenomena. Hence, it contributes to the development of tsunami modeling as a scientific discipline that can offer new ideas and highlight limitations or a building block for further research in the field of natural disasters.","PeriodicalId":510703,"journal":{"name":"Sci","volume":"140 29","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141656203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Effect of the Acquisition Rate on Post-Acquisition Innovation 收购率对收购后创新的影响

Sci Pub Date : 2024-07-01 DOI: 10.3390/sci6030037

Yingmei Li, Yona Kwon, Seungho Choi

{"title":"The Effect of the Acquisition Rate on Post-Acquisition Innovation","authors":"Yingmei Li, Yona Kwon, Seungho Choi","doi":"10.3390/sci6030037","DOIUrl":"https://doi.org/10.3390/sci6030037","url":null,"abstract":"Technology acquisitions are one of the most common growth strategies for firms. Firms that have made multiple acquisitions in the past are more likely to make new ones. With previous M&A experience, firms are more likely to make acquisitions. The acquisition rate is the total number of acquisitions a firm has made at a given time. In technology acquisition, the acquisition rate affects innovative firm performance. The more frequent acquisitions a firm makes, the less innovative performance will occur. A high acquisition rate negatively affects post-acquisition performance by dominating the attention of decision-makers and overloading the firm. During the process, there needs to be structural integration between the acquirer and the target firm. This study empirically analyzes 380 cases of technology acquisitions of U.S. publicly traded companies from 1990 to 2005. The results show that a high acquisition rate is negatively related to the post-acquisition innovation performance of the acquirer. Although structural integration has no impact on the negative relationship between post-acquisition performance and acquisition rate, considering the acquisition rate when pursuing M&A allows acquiring firms to avoid detrimental consequences.","PeriodicalId":510703,"journal":{"name":"Sci","volume":"55 27","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141689570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Promising Catalyst for Chlorosilane Dismutation 有望实现氯硅烷歧化的催化剂

Sci Pub Date : 2024-07-01 DOI: 10.3390/sci6030038

Olesya Zhuchok, Yegor Stolmakov, Alexandra Kalinina, Vitaly Medov, Darya Belousova, Nikita Maleev, Georgy Mochalov

{"title":"Promising Catalyst for Chlorosilane Dismutation","authors":"Olesya Zhuchok, Yegor Stolmakov, Alexandra Kalinina, Vitaly Medov, Darya Belousova, Nikita Maleev, Georgy Mochalov","doi":"10.3390/sci6030038","DOIUrl":"https://doi.org/10.3390/sci6030038","url":null,"abstract":"Currently, the most common method of silane synthesis for electronics and photovoltaics is trichlorosilane dismutation. Therefore, an experimental study of the kinetics of the dismutation reaction of chlorosilanes is of scientific and practical interest. A catalyst has been proposed that allows the dismutation reaction to be carried out in a wide range of temperatures and pressures. Both kinetic and thermodynamic data on the dependence of the rate of the dismutation reactions of trichlorosilane, dichlorosilane, and monochlorosilane on pressure were experimentally obtained. In addition, the dependence of saturated vapor pressure on temperature for monochlorosilane and dichlorosilane were also experimentally determined. Using the example of TCS, it was experimentally established that increasing the pressure to six atmospheres makes it possible to increase the specific productivity of the reactor by at least an order of magnitude due to the acceleration of the chemical reaction and the increase in the molar concentration of chlorosilanes in the vapor mixture. Consequently, it becomes possible to multiply the reactor’s load on the substance and, accordingly, the performance of the chlorosilane dismutation apparatus in general.","PeriodicalId":510703,"journal":{"name":"Sci","volume":"7 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141711779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Anti-Aging Potential of Bioactive Phytoconstituents Found in Edible Medicinal Plants: A Review 食用药用植物中发现的生物活性植物成分的抗衰老潜力：综述

Sci Pub Date : 2024-06-13 DOI: 10.3390/sci6020036

E. Iweala, O. E. Adurosakin, Ugochukwu Innocent, CA Omonhinmin, O. Dania, E. Ugbogu

{"title":"Anti-Aging Potential of Bioactive Phytoconstituents Found in Edible Medicinal Plants: A Review","authors":"E. Iweala, O. E. Adurosakin, Ugochukwu Innocent, CA Omonhinmin, O. Dania, E. Ugbogu","doi":"10.3390/sci6020036","DOIUrl":"https://doi.org/10.3390/sci6020036","url":null,"abstract":"Aging is a complex biological and physiological change that leads to a loss of function in all living organisms. Although the mechanism behind the aging process is still largely unknown, scientific studies have shown that oxidative stress and age-related low autophagy, which are associated with various chronic diseases such as cancer, diabetes, cardiovascular diseases, and neurodegenerative diseases, promote aging. Interestingly, many medicinal plants and their biologically active compounds have the ability to extend lifespan as they can inhibit oxidative stress and promote autophagy. This review evaluates and provides up-to-date information on the anti-aging potential of bioactive compounds in edible medicinal plants. In this study, seventeen (17) biologically active compounds from edible medicinal plants with anti-aging effects were reviewed. In vivo and in vitro studies showed that these biologically active compounds exhibit anti-aging effects via various mechanisms such as the activation of autophagy, increases in antioxidant enzymes, reductions in reactive oxygen species, the inhibition of inflammatory markers, and the downregulation of senescence genes. This study suggests that edible medicinal plants containing these bioactive compounds may promote health and extend lifespan. However, the exact mechanisms, effective doses, clinical trials, and chronic and genotoxic effects of bioactive compounds as anti-aging agents should be further investigated.","PeriodicalId":510703,"journal":{"name":"Sci","volume":"66 19","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141346437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cassia alata and Its Phytochemicals: A Promising Natural Strategy in Wound Recovery 决明及其植物化学物质：一种前景广阔的伤口恢复天然策略

Sci Pub Date : 2024-06-03 DOI: 10.3390/sci6020034

Jing Keng, Sue-Kei Lee, Sze-Huey Sang, Kai-Bin Liew, S. Teo, Wan Mastura Shaik Mohamed Mossadeq, Sek-Chuen Chow, G. Akowuah, Siew-Keah Lee, C. Mai, Yik-Ling Chew

引用次数: 0

Genetic Relationships of Cultivated Flax and Its Wild Progenitor as Revealed by 454 Pyrosequencing, Sanger Resequencing and Microsatellite Data 454 热测序、桑格重测序和微卫星数据揭示的栽培亚麻及其野生祖先的遗传关系

Sci Pub Date : 2024-06-03 DOI: 10.3390/sci6020035

Yong-Bi Fu

{"title":"Genetic Relationships of Cultivated Flax and Its Wild Progenitor as Revealed by 454 Pyrosequencing, Sanger Resequencing and Microsatellite Data","authors":"Yong-Bi Fu","doi":"10.3390/sci6020035","DOIUrl":"https://doi.org/10.3390/sci6020035","url":null,"abstract":"Flax (Linum usitatissimum L.), as the earliest oil and fiber crop, is a model plant for genetic inferences of plant domestication processes involving multiple domestication events. However, a puzzle has emerged from several genetic studies, as dehiscent cultivated flax is genetically more related to its progenitor pale flax (L. bienne Mill.), and winter cultivated flax is well mixed with oil or fiber cultivated flax, while capsular dehiscence and winter hardiness are the major characteristics of pale flax. For this, a comparative analysis was conducted with 16 Linum samples representing pale flax and four domestication groups of cultivated flax (oil, fiber, winter, and dehiscent) using 454 pyrosequencing, Sanger resequencing and microsatellite data. It was found that the genomic sampling of genetic variants from the three applied methods yielded similar genetic information on pale flax and four groups of cultivated flax. The revealed genetic relationships did not show significant departures from the previous findings, but instead supported an early, independent domestication of a primitive flax lineage for oil use, followed by a subsequent flax domestication process with multiple domestication events for capsular dehiscence, oil, fiber and winter hardiness. Domestication on capsular dehiscence occurred earlier than domestication on winter hardiness. Domestication on winter hardiness was more complicated than domestication on capsular dehiscence.","PeriodicalId":510703,"journal":{"name":"Sci","volume":"59 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141269198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0