emerging technology

新兴技术
  • 文章类型: Journal Article
    水产养殖部门的不断增长引起了人们对其环境足迹的重大关注,包括营养排放,大量的饲料消费,和高能源需求。作为回应,正在开发创新方法,例如水产养殖和综合多营养水产养殖(IMTA),作为潜在的更可持续的替代品。本研究旨在使用生命周期评估(LCA)方法评估创新的综合多营养Aquaponics系统(IMTAcs)的环境绩效。鉴于中试工厂的实验性质,分析了两种不同的放大方案:一种使用替代饲料(IMTAcsAF),另一种采用商业饲料(IMTAcsCF)。功能单位定义为系统产生的100千卡和1千克蛋白质,从摇篮到大门的角度定义系统边界。结果表明,IMTAcsAF对全球变暖的影响更大(0.234kgCO2当量。/100千卡)与IMTAcsCF(0.207千克二氧化碳当量。).在这两种情况下,电力消耗被确定为环境影响的主要驱动因素,超过50%,与传统系统相比,饲料是主要热点。此外,虽然净初级生产使用和富营养化等影响类别的趋势在两种情景之间是相反的,后者表现出巨大的缓解潜力,归因于系统固有的养分循环,与传统水产养殖系统相比。虽然调查结果很有希望,研究中的某些限制(例如,使用放大数据和分析的固有不确定性),由于现有研究的匮乏,指出进一步探索的机会。这包括在可行的情况下分析实际规模的实现,并与传统系统进行更详细的比较。
    The increasing growth of the aquaculture sector has raised significant concerns regarding its environmental footprint, including nutrient discharge, substantial feed consumption, and high energy requirements. In response, innovative approaches such as aquaponics and integrated multi-trophic aquaculture (IMTA) are being developed as potentially more sustainable alternatives. This study aims to evaluate the environmental performance of an innovative Integrated Multi-Trophic Aquaponics system (IMTAcs) using the Life Cycle Assessment (LCA) approach. Given the experimental nature of the pilot plant, two distinct scaled-up scenarios were analysed: one utilizing an alternative feed (IMTAcs AF), and the other employing a commercial feed (IMTAcs CF). The functional unit was defined as 100 kcal and 1 kg of protein produced by the system, with a cradle-to-gate perspective defining system boundaries. Results revealed that IMTAcs AF has a higher global warming impact (0.234 kg CO2 eq./100 kcal) compared to IMTAcs CF (0.207 kg CO2 eq.). In both scenarios, electricity consumption was identified as the primary driver to environmental impact, exceeding 50%, in contrast to conventional systems where feed is the main hotspot. Moreover, while trends in impact categories such as net primary production use and eutrophication is opposite between the scenarios, the latter demonstrated substantial mitigation potential, attributable to the system\'s inherent nutrient recycling, in comparison with traditional aquaculture systems. While the findings are promising, certain limitations in the study (e.g. utilization of scaled-up data and inherent uncertainties analysed), with the scarcity of existing research, point to the opportunity for further exploration. This includes analysing real-scale implementations whenever feasible and conducting more detailed comparisons with traditional systems.
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  • 文章类型: Journal Article
    在如此严重的环境中的消防员(即,危险的火焰和辐射热,高气温,热化学品和液体)在灭火和救援行动中必须穿防火服。在消防防护服领域进行了许多研究,以评估防护,消防防护服的机械和舒适性能。对文献进行了全面的审查,以更好地理解单层和多层防火防护服,机械和舒适性能。根据预期的退休年龄以及实验室和人体模型测试的许多重要标准,讨论了影响防护服耐用性的因素。穿着衣服的舒适性是设计多层防火服时需要特别考虑的另一个方面。已经概述了许多新兴技术来应对当今的各种挑战。
    Firefighters in such serious environments (i.e., hazardous flames and radiant heat, high air temperatures, hot chemicals and liquids) must wear fire protective clothing during fire extinguishing and rescue operations. Many studies in the field of fire protective clothing have been conducted to evaluate the protective, mechanical and comfort performance of fire protective clothing. A comprehensive review of the literature has been undertaken to provide a better understanding of single-layer and multilayer fire protective clothing with protective, mechanical and comfort performance. Factors affecting the durability of protective clothing in the light of their expected retirement age and a number of significant standards for laboratory and manikin testing are discussed. The comfort of wearing clothing is another aspect that needs special consideration when designing a multilayered fire protective suit. A number of emerging technologies have been outlined to address the various challenges of the present day.
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  • 文章类型: Journal Article
    药物治疗是射血分数降低的心力衰竭(HFrEF)的基础治疗。此外,已经开发了几种经皮技术来治疗有症状的患者,具有特定的心力衰竭(HF)表型(例如,瓣膜性心脏病)需要非药物治疗。鉴于它们的预后相关性,必须提供高水平的病人护理。这篇综述提供了有关当代介入心脏病学家医疗设备中经导管装置的可用数据的临床概述。专注于临床和解剖学选择标准。
    Pharmacological treatment is the cornerstone therapy of heart failure with reduced ejection fraction (HFrEF). In addition, several percutaneous techniques have been developed to treat symptomatic patients, with specific heart failure (HF) phenotypes (e.g., valvular heart disease) that require non-pharmacological treatment. Given their prognostic relevance, it is imperative to deliver high-level patient care. This review provides a clinical overview on the available data regarding transcatheter devices in the armamentarium of contemporary interventional cardiologists, focusing on the clinical and anatomical selection criteria.
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  • 文章类型: Journal Article
    这项工作探索了超声波(US)对活动的影响,稳定性,和环糊精糖基转移酶(CGTase)的宏观结构构象以及这些变化如何最大程度地提高β-环糊精(β-CD)的产量。结果表明,在pH6.0下超声预处理(20kHz和38W/L)促进了酶活性的提高。具体来说,在25°C/30分钟超声处理后,当在25和55°C下进行生物催化时,最大活性增加了93%和68%,分别。对于在80°C下测量的活性,在25°C/60分钟超声处理后观察到最大增加(31%)。相对而言,在低pH(pH=4.0)下进行US预处理导致较低的活性增加(最大28%)。这些活化水平在8°C储存24小时后保持。表明超声预处理后CGTase的变化不是短暂的。这些预处理改变了CGTase的构象结构,内在荧光强度增加高达11%,并导致宏观结构的改变,例如粒度和多分散指数的降低(高达85%和45.8%,分别)。因此,CGTase在特定pH条件下的超声处理,时间,和温度(尤其是在pH6.0/30分钟/25°C下)促进CGTase的宏观结构变化,从而诱导酶活化,因此,β-CD的产量更高。
    This work explored the impact of ultrasound (US) on the activity, stability, and macrostructural conformation of cyclodextrin glycosyltransferase (CGTase) and how these changes could maximize the production of β-cyclodextrins (β-CDs). The results showed that ultrasonic pretreatment (20 kHz and 38 W/L) at pH 6.0 promoted increased enzymatic activity. Specifically, after sonication at 25 °C/30 min, there was a maximum activity increase of 93 % and 68 % when biocatalysis was carried out at 25 and 55 °C, respectively. For activity measured at 80 °C, maximum increase (31 %) was observed after sonication at 25 °C/60 min. Comparatively, US pretreatment at low pH (pH = 4.0) resulted in a lower activity increase (max. 28 %). These activation levels were maintained after 24 h of storage at 8 °C, suggesting that changes on CGTase after ultrasonic pretreatment were not transitory. These pretreatments altered the conformational structure of CGTase, revealed by an up to 11 % increase in intrinsic fluorescence intensity, and resulted in macrostructural modifications, such as a decrease in particle size and polydispersion index (up to 85 % and 45.8 %, respectively). Therefore, the sonication of CGTase under specific conditions of pH, time, and temperature (especially at pH 6.0/ 30 min/ 25 °C) promotes macrostructural changes in CGTase that induce enzyme activation and, consequently, higher production of β-CDs.
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  • 文章类型: Journal Article
    实验室医学中的新兴技术可以定义为分析方法(包括生物标志物)或设备(软件,应用程序,和算法)到了它的发展阶段,转化为广泛的常规临床实践,或地理上的采用和实施有可能为临床诊断增加价值。儿科实验室医学本身可以被认为是一个新兴的专业领域,在对儿童独特的生理和医疗保健需求的理解和理解增加之后,这是最近建立的。通过四个临床(新生儿低血糖,新生儿高胆红素血症,镰状细胞病,先天性肾上腺增生)和六种技术(微量检测,非侵入性测试,替代矩阵,下一代测序,外泌体分析,机器学习)插图,总结了每个领域应用新兴技术的关键要点。此外,讨论了在儿科实验室医学环境中应用新兴技术时的九个关键考虑因素。
    Emerging technology in laboratory medicine can be defined as an analytical method (including biomarkers) or device (software, applications, and algorithms) that by its stage of development, translation into broad routine clinical practice, or geographical adoption and implementation has the potential to add value to clinical diagnostics. Paediatric laboratory medicine itself may be considered an emerging area of specialisation that is established relatively recently following increased appreciation and understanding of the unique physiology and healthcare needs of the children. Through four clinical (neonatal hypoglycaemia, neonatal hyperbilirubinaemia, sickle cell disorder, congenital adrenal hyperplasia) and six technological (microassays, noninvasive testing, alternative matrices, next generation sequencing, exosome analysis, machine learning) illustrations, key takeaways of application of emerging technology for each area are summarised. Additionally, nine key considerations when applying emerging technology in paediatric laboratory medicine setting are discussed.
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  • 文章类型: Journal Article
    柿子被广泛认为是药用和营养成分的宝贵来源,提供多样化的营养和植物化学物质。尽管有这些好处,对柿子的偏见仍然存在,因为它们特有的涩味使它们与其他水果不同。尽管一些研究已经探索了柿子的各个方面,应对收获后挑战的全面审查,加工创新,和潜在的应用在文献中明显缺乏。这篇综述旨在通过讨论一系列主题来填补这一空白,包括新兴的保存技术,检测和消除收敛性的方法,功能元素的识别,促进健康的前景,以及柿子加工产品的进步。首要目标是提高柿子的利用率,促进多样化发展,定制产品,从而促进功能性和未来食品的出现。
    Persimmons are widely acknowledged as a valuable source of both medicinal and nutritional components, providing a diverse spectrum of nutrients and phytochemicals. Despite these benefits, biases against persimmons persists due to their characteristic astringent flavor that sets them apart from other fruits. Although several studies have explored various aspects of persimmons, a comprehensive review that addresses post-harvest challenges, processing innovations, and potential applications is notably absent in the literature. This review aims to fill this gap by discussing a range of topics, including emerging preservation technologies, methods for detecting and eliminating astringency, identification of functional elements, health-promoting prospects, and advancements in processed persimmon products. The primary objective is to enhance the utilization of persimmons and promote the development of diverse, customized products, thereby fostering the emergence of functional and futuristic foods.
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  • 文章类型: Journal Article
    中风是全球非传染性疾病相关死亡和残疾的主要原因。最常见的形式,缺血性卒中,发病率不断增加,给患者和社会带来了巨大的负担。因此,需要采取紧急行动来解决可预防的风险因素并改进治疗方法。这篇综述探讨了用于缺血性卒中管理的新兴技术,包括神经成像,再生医学,生物学和纳米医学,强调他们的好处,临床应用,和限制。此外,我们提出了预防技术发展的策略,诊断,和缺血性中风的治疗。
    Stroke is a primary cause of noncommunicable disease-related death and disability worldwide. The most common form, ischemic stroke, is increasing in incidence resulting in a significant burden on patients and society. Urgent action is thus needed to address preventable risk factors and improve treatment methods. This review examines emerging technologies used in the management of ischemic stroke, including neuroimaging, regenerative medicine, biology, and nanomedicine, highlighting their benefits, clinical applications, and limitations. Additionally, we suggest strategies for technological development for the prevention, diagnosis, and treatment of ischemic stroke.
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  • 文章类型: Journal Article
    食品包装加工相互作用定义包装材料的性能和产品质量。本研究评估了欧姆加热(OH)处理和不同食品模拟物对四种多层软包装材料(PETmet/PE,PETmet/PP,PET/Al/PE,和PET/Al/PA/PP)。使用3.7V/cm的电压梯度以20kHz的频率对含有食品模拟物的密封包装进行OH处理。导致在80°C下1分钟的热过程。然后评估不同包装的结构和性能。该材料在化学基团和热性能方面没有显示出变化。然而,模拟-包装-加工相互作用导致结晶度的变化,形态学,机械和阻隔性能(水和氧气),特别是与酸性食品模拟物接触的金属化薄膜。结果表明,尽管OH导致包装材料的变化,这些材料可以在本研究中应用的条件下使用。
    Food-packaging-processing interactions define packaging materials\' performance properties and product quality. This study evaluated the effect of ohmic heating (OH) processing and different food simulants on the properties of four multilayer flexible packaging materials (PETmet/PE, PETmet/PP, PET/Al/PE, and PET/Al/PA/PP). OH treatment was applied to the sealed packages containing the food simulants using a voltage gradient of 3.7 V/cm at a frequency of 20 kHz, resulting in a thermal process of at 80 °C for 1 min. The structure and performance of the different packages were then evaluated. The materials did not show changes in chemical groups nor thermal properties. However, the simulant-packaging-processing interaction resulted in changes in crystallinity, morphology, mechanical and barrier properties (water and oxygen), especially for metallized films in contact with acidic food simulants. The results indicate that although OH resulted in changes in packaging materials, these materials can be used under the conditions applied in this study.
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  • 文章类型: Journal Article
    食物基质是一个复杂的系统,涵盖了食物生产中的所有构成要素。它通过直接相互作用影响这些元素的消化率,并影响消化环境。此外,胃肠系统具有精确的机制,有效地将膳食成分转化为必需营养素,在大多数情况下有效预防异常免疫反应或功能失调的宿主反应的发生。然而,食品不良反应的发生率不断增加,证据表明这个过程是环境的。不良反应可分为毒性或无毒。毒性反应是剂量依赖性的,可能是由天然化合物引起的,加工诱导物质,或污染物。诸如食物不耐受和超敏反应的无毒反应取决于个体易感性并引起特定的病理和生理反应。这篇综述旨在阐明免疫(食物过敏和敏感性)和非免疫介导(食物不耐受)反应发生的潜在机制。强调这两个类别之间的根本区别。增强对这些机制的理解和区分将大大有助于推进预防和治疗方法,并建立有关免疫介导反应的食品标签指南。
    The food matrix is a complex system encompassing all constituent elements in food production. It influences the digestibility of these elements through direct interactions and affects the digestive environment. Furthermore, the gastrointestinal system possesses precise mechanisms that efficiently process dietary components into essential nutrients, effectively preventing the onset of abnormal immune responses or dysfunctional host reactions in most instances. However, the incidence of adverse food reactions is constantly increasing, and evidence indicates that this process is environmental. Adverse reactions can be categorized as toxic or nontoxic. Toxic reactions are dose-dependent and can result from natural compounds, processing-induced substances, or contaminants. Nontoxic reactions like food intolerance and hypersensitivity depend on individual susceptibility and evoke specific pathological and physiological responses. This review aims to elucidate the mechanisms underlying the occurrence of immune- (food allergies and sensitivities) and non-immune-mediated (food intolerance) reactions, emphasizing the fundamental distinctions between these two categories. Enhanced comprehension and distinction of these mechanisms will significantly contribute to advancing preventive and therapeutic approaches and establishing guidelines for food labeling concerning immune-mediated reactions.
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  • 文章类型: Editorial
    暂无摘要。
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