检索结果-内蒙古大学图书馆

Journal of Biotech research 2019年 10卷 271-282页

作者： Manan, Musaalbakri Abdul Webb, Colin Enzyme and Fermentation Technology Program Science and Food Technology Research Centre Malaysian Agricultural Research and Development Institute Persiaran MARDI - UPM Serdang Selangor43400 Malaysia Satake Centre for Grain Process Engineering School of Chemical Engineering and Analytical Science Faculty of Engineering and Physical Sciences University of Manchester United Kingdom

Solid state fermentation (SSF) involves the growth of microorganisms especially filamentous fungi on moist solid substrates in the absence of free-flowing water. SSF offers a more favorable environment for fungal growth, yielding higher productivity in a relatively low-cost process by using nutrient-rich agro-industrial residues as substrates. With the increasing interest in SSF nowadays, researchers are keen to discover as many new ways to explore the usage of this technology as possible to develop new added-value materials from by-products. In addition to nutritional composition of solid substrate used for SSF medium, physical properties of solid substrate also represent another important idea to be focused on during SSF that will influence the behavior and the productivity of microorganisms involved for substrate utilization and product formation. The main objective of this reported article was to study solid substrate particles and their physical characteristics in relation to SSF, analyzing how of these characteristics vary with different solid substrate particles and moisture contents. The importance of physical properties, such as bulk density, particle density, specific volume, porosity, particle size, surface area, volumetric specific surface area, water retention value (WRV) and tortuosity, was identified in this study. This primary information can be advantage in the microbial SSF process to be carried out. © 2019 Bio Tech System.

关键词： Microorganisms

来源：评论

学校读者我要写书评

暂无评论

Solar Biomass Pyrolysis with Latent Heat Ballast

Solar Biomass Pyrolysis with Latent Heat Ballast

引用

Power and Energy engineering (ICPEE), International Conference on

作者： Zhang Huili Baeyens Jan Dewil Raf Li Shuo Deng Yimin Reyes-Urrutia Andrés Venier César Martin Mazza Germán College of Life Science and Technology Beijing University of Chemical Technology Beijing China Beijing Advanced Innovation Centre for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing China Process and Environmental Technology Lab KU Leuven Sint-Katelijne-Waver Belgium Biotechnology and Alternative Energies Institute for Research and Development in Process Engineering Neuquén Argentina Research Center for Computational Methods CIMEC-CONICET National University of the Littoral Santa Fe Argentina

ISBN: (纸本)9781665420471

The concentrated solar-driven pyrolysis of biomass (sawdust) was examined in a fluidized bed reactor with 0.15 mI.D. and 0.3 m bed height, using cristobalite sand as bed material. The fluidized bed a reactor was fitted with in-bed tubes, filled with a phase change material with phase change temperature of 450 to 475°C. Four, 5 and 9 tube-inserts were examined. The solution with 5 tube-insert was experimentally demonstrated to considerably influence the bubble sizes and frequencies in the reactor, leading to an enhanced heat transfer from the irradiated reactor wall to the fluidized bed, and from the fluidized bed to the in-bed tubes. The steam assisted pyrolysis produced between 40 and 55 wt% of high-quality biochar (BET $\gg 100 m^{2}$/g), about 20 to 25 wt% of oxygenated bio-oil and the balance as syngas. The operation at moderate temperature and with steam injection drives the pyrolysis reactor towards biochar production. In using the PCM-ballasted inserts, the temperature could be narrowly controlled within the selected operation range, whereas it was also possible to maintain the temperature at the required level for 15 to 20 minutes during non-sun periods.

关键词： Phase change materials Temperature distribution Electronic ballasts Software packages Electron tubes Biomass Temperature control

来源：评论

学校读者我要写书评

暂无评论

Opportunities of prebiotics for the intestinal health of monogastric animals

引用

Animal Nutrition 2020年第4期6卷 379-388页

作者： Md A.K.Azad Jing Gao Jie Ma Tiejun Li Bie Tan Xingguo Huang Jie Yin College of Animal Science and Technology Hunan Agricultural UniversityHunan Provincial Engineering Research Center of Applied Microbial Resources Development for Livestock and PoultryChangsha410128China Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process Key Laboratory of Agro-ecological Processes in Subtropical RegionInstitute of Subtropical AgricultureChinese Academy of SciencesNational Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry ProductionChangsha410125China University of Chinese Academy of Sciences Beijing100049China

The goal of prebiotic applications from different sources is to improve the gut ecosystem where the host and microbiota can benefit from *** has already been recognized that prebiotics have potential roles in the gut ecosystem because gut microbiota ferment complex dietary macronutrients and carry out a broad range of functions in the host body,such as the production of nutrients and vitamins,protection against pathogens,and maintenance of immune system *** gut ecosystem is very crucial and can be affected by numerous factors consisting of dietary constituents and commensal *** review focuses on recent scientific evidence,confirming a beneficial effect of prebiotics on animal health,particularly in terms of protection against pathogenic bacteria and increasing the number of beneficial bacteria that may improve epithelial cell barrier *** has also been reviewed that modification of the gut ecosystem through the utilization of prebiotics significantly affects the intestinal health of ***,the identification and characterization of novel potential prebiotics remain a topical issue and elucidation of the metagenomics relationship between gut microbiota alteration and prebiotic substances is necessary for future prebiotic studies.

关键词： Prebiotics Gut microbiota Intestinal health Short-chain fatty acids

来源：评论

学校读者我要写书评

暂无评论

Determining photon flux and effective optical path length in intensified flow photoreactors

Nature Chemical Engineering

引用

Nature Chemical engineering 2024年 462-471页

作者： Stefan D. A. Zondag Jasper H. A. Schuurmans Timothy Noël Arnab Chaudhuri Robin P. L. Visser John van der Schaaf Cíntia Soares Natan Padoin Koen P. L. Kuijpers Matthieu Dorbec Flow Chemistry Group Van ’t Hoff Institute for Molecular Sciences Universiteit van Amsterdam Amsterdam The Netherlands Department of Chemical Engineering and Chemistry Sustainable Process Engineering Eindhoven University of Technology Eindhoven The Netherlands Department of Chemical and Food Engineering Federal University of Santa Catarina Florianópolis Brazil Technology and Engineering Group Janssen Research and Development Beerse Belgium

Photocatalysis for small-molecule activation has advanced considerably over the past decade, yet its scale-up remains challenging in part due to photon attenuation effects. One promising solution lies in combining high photonic intensities with continuous-flow reactor technology, requiring careful understanding of photon transport for successful implementation. Here, to address this, we introduce a characterization approach, starting with radiometric light source analysis, followed by three-dimensional reactor and light source simulation. This strategy, when followed up with chemical actinometry experiments, decouples photon flux quantification and path length determination, substantially curtailing the experimental process. The workflow proves versatile across various reactor systems, simplifying intricate light interactions into a single one-dimensional parameter—the effective optical path length. This parameter effectively characterizes photoreactor setups, irrespective of scale, geometry, light intensity or concentration. Additionally, the proposed workflow provides insight into light source positioning and reactor design, and facilitates experiments at lower concentrations, ensuring representative reactor operation. In essence, our approach provides a thorough, efficient and consistent framework for reactor irradiation characterization.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Spatiotemporal Evolution and Driving Factors of Soil Conservation Function in a Typical Basin of the Alpine Region in the Upper Yellow River

SSRN

引用

SSRN 2025年

作者： Niu, Baicheng Li, Qi Song, Zhen Fang, Haiyan Yu, Qin Wang, Shan Mu, Kaifang Du, Wenlin Power China Northwest Engineering Corporation Limited Shaanxi Xi’an710065 China School of National Security and Emergency Management Qinghai Normal University Qinghai Xining810008 China School of Geographical Science Qinghai Normal University Xining810008 China Key Laboratory of Mountain Hazards and Earth Surface Process Institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu610299 China Key Laboratory of Land Surface Hydrological Processes and Land Surface Processes Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China Qinghai Yellow River Upstream Hydropower Development Co. Ltd. Longyangxia Power Generation Branch Hainan Tibetan Autonomous Prefecture Xining811899 China

In recent years, soil erosion has become increasingly severe in the Tibet Plateau, especially in the upper Yellow River Basin. The spatiotemporal changes in soil erosion and soil conservation function in the Shagou River watershed in this region between 1980 and 2000 was evaluated using the InVEST model and Geodetectors. The results show that over the past 40 years, the Shagou River Basin mainly suffered mild erosion. Temporally, the mean soil erosion intensity increased by 81.40% from 1980 to 2000, reaching a peak of approximately 1292.49 t/(km2·a). From 2000 to 2020, it decreased by 40.45% with soil erosion intensity of 769.63 t/km2·a, indicating a clear improvement trend. From 1980 to 1990, the growth rate of soil conservation function was most significant, reaching 25.89%, while the growth rate from 2010 to 2020 was relatively small, only 6.23%. Over the past 40 years, the total soil conservation function increased by 1.12×107 t, with a growth rate of 88.24%, reflecting the effectiveness of soil conservation measures. Altitudes, slopes, and land use types had significantly affected both on soil erosion intensity and soil conservation function. Geodetector analysis indicated that the main factors influencing soil erosion intensity were vegetation cover (NDVI) and elevation, along with the their dual-factor interaction. The main factors influencing soil conservation function were elevation, precipitation and their interaction dominated by elevation. This study provides a theoretical basis and scientific reference for ecological protection and sustainable development in the alpine region of the upper Yellow River Basin. © 2025, The Authors. All rights reserved.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Towards online optimisation of solid oxide fuel cell performance: Combining deep learning with multi-physics simulation

引用

Energy and AI 2020年第1期1卷 11-21页

作者： Haoran Xu Jingbo Ma Peng Tan Bin Chen Zhen Wu Yanxiang Zhang Huizhi Wang Jin Xuan Meng Ni Department of Chemical Engineering Loughborough UniversityLoughboroughUnited Kingdom National Key Laboratory for Precision Hot Processing of Metals School of Materials Science and EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina Department of Thermal Science and Energy Engineering University of Science and Technology of ChinaHefei 230026China Institute of Deep Earth Sciences and Green Energy Shenzhen UniversityShenzhen 518060China Shaanxi Key Laboratory of Energy Chemical Process Intensification School of Chemical Engineering and TechnologyXi’an Jiaotong UniversityXi’anChina Department of Mechanical Engineering Imperial College LondonLondon SW72AZ United Kingdom Department of Building and Real Estate Building Energy Research GroupThe Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Environmental Energy Research Group Research Institute for Sustainable Urban Development(RISUD)The Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina

The use of solid oxide fuel cells(SOFCs)is a promising approach towards achieving sustainable electricity pro-duction from *** utilisation of the hydrocarbons and biomass in SOFCs is particularly attractive owing to their wide distribution,high energy density,and low *** long-term operation of SOFCs using such fuels remains difficult owing to a lack of an effective diagnosis and optimisation system,which requires not only a precise analysis but also a fast *** this study,we developed a hybrid model for an on-line analysis of SOFCs at the cell *** model combines a multi-physics simulation(MPS)and deep learning,overcoming the complexity of MPS for a model-based control system,and reducing the cost of building a database(compared with the experiments)for the training of a deep neural *** maximum temperature gradient and heat generation are two target parameters for an efficient operation of *** results show that a precise predic-tion can be achieved from a trained AI algorithm,in which the relative error between the MPS and AI models is less than 1%.Moreover,an online optimisation is realised using a genetic algorithm,achieving the maximum power density within the limitations of the temperature gradient and operating *** method can also be applied to the prediction and optimisation of other non-liner,dynamic systems.

关键词： Solid oxide fuel cell Multi-physics simulation Artificial intelligence Deep neural network Hybrid model On-line optimisation

来源：评论

学校读者我要写书评

暂无评论

Influence of Graphene Oxide on the Texture and Chemistry of N, S-Doped Highly Porous Carbon and Implications for Electrocatalytic and Energy Storage Applications

SSRN

引用

SSRN 2022年

作者： Samaniego Andrade, Samantha K. Bakos, István Klébert, Szilvia Kun, Robert Lakshmi, Shiva Shankar Mohai, Miklós Nagy, Balázs László, Krisztina Department of Physical Chemistry and Materials Science Budapest University of Technology and Economics Budapest1521 Hungary Institute of Materials and Environmental Chemistry Research Centre for Natural Sciences Eötvös Loránd Research Network Magyar tudósok körútja 2. BudapestH-1117 Hungary Department of Chemical and Environmental Process Engineering Budapest University of Technology and Economics Budapest1521 Hungary H-ion Research Development and Innovation ltd. 1121 Konkoly-Thegeút Budapest29-33 Hungary

1.25 – 5% graphene oxide (GO) containing ι-carrageenan – urea hydrogels were converted to high surface area carbon with hierarchical porous structure. The effect of the reduced GO (rGO) of these N, S-doped carbons was studied in oxygen reduction reaction (ORR) and in electrochemical Li-ion storage application. Although the volatile thermal degradation products of GO affected the porous texture and the surface chemistry in a complex way, the rGO residue resulted in a monotonically increasing electrical conductivity of the carbon obtained. While the highest porosity was achieved with 2.5% GO (SBET 1780 m2/g and V0.98=1.7 cm3/g), the highest surface charge and gravimetric capacity in alkaline ORR reaction was observed with the 1.25% sample. It showed the advantageous 4e- mechanism, but the incorporated GO deteriorated the stability of the electrode in all the samples. In the Li-ion battery tests the coulombic efficiency of all the samples was consistently above 98%, indicating the great potential of such carbons for efficient Li-ion insertion and reinsertion during the charge-discharge process, thereby providing a promising alternative for graphite-based anodes. The cell from the 1.25% sample also showed the lowest impedance, an initial discharge capacity of 313 mAh/g and 95.1% capacity retention after 50 charge-discharge cycles. © 2022, The Authors. All rights reserved.

关键词： Graphene

来源：评论

学校读者我要写书评

暂无评论

Correction to: Identification and quantification of carotenoid in commonly consumed agricultural crops in Korea (Food Science and Biotechnology, (2024), 10.1007/s10068-024-01788-6)

引用

Food Science and Biotechnology 2024年第11期34卷 2671-2671页

作者： Hwang, Chi Young Cho, Eui-Sang Kim, Dae-Ok Lee, Hyungjae Kim, Jae-Kwang Seo, Myung-Ji Department of Bioengineering and Nano-Bioengineering Incheon National University Incheon22012 Korea Republic of BioTechnology Institute University of Minnesota St. PaulMN55108 United States Department of Food Science and Biotechnology Kyung Hee University Yongin17104 Korea Republic of Department of Food Engineering Dankook University Cheonan31116 Korea Republic of Division of Life Sciences College of Life Sciences and Bioengineering Incheon National University Incheon22012 Korea Republic of Division of Bioengineering Incheon National University Incheon22012 Korea Republic of Research Center for Bio Materials & Process Development Incheon National University Incheon22012 Korea Republic of

In this article the email address for Prof. Jae-Kwang Kim was incorrectly given as ‘jgkim@***’ but should have been ‘kjkpj@***’. © The Korean Society of Food Science and Technology 2024.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Low MWCO nanofiltration membranes prepared by stepwise depositing polyphenol and aminosilane coupling agent with the assistance of ethanol-regulated oxidation for antibiotic removal

引用

Separation and Purification Technology 2025年 376卷

作者： Runkai Su Guoying Feng Zhiguo Yan Man Xu Cunwen Wang Yanbo Li Hubei Key Laboratory of Novel Reactor and Green Chemical Technology Key Laboratory for Green Chemical Process of Ministry of Education State Key Laboratory of Green and Efficient Development of Phosphorus Resources School of Chemical Engineering and Pharmacy Wuhan Institute of Technology Wuhan 430072 China School of Mechanical & Electrical Engineering Wuhan Institute of Technology China Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province Wuhan Hubei China

Mussel-inspired catechol amine chemistry has emerged as a novel strategy to fabricate nanofiltration (NF) membranes. However, the preparation takes hours, and the molecular weight cut-off (MWCO) of the resulting membranes is usually not low enough to reject small molecules. This work described a new method to prepare dense NF membranes using tannic acid (TA) and aminosilane coupling agent (KH792 (N-(2-aminoethyl)-3-aminopropyltrimethoxysilane)) as materials, with the assistance of ethanol-regulated oxidation. The NF membranes were made by stepwise depositing oxidized-TA and KH792 on PSF substrates. The oxidation of TA was regulated by adjusting the solvent composition or the dosage of NaIO 4 . The effect of NaIO 4 on the chemistry of TA was explored by various characterizations. The selective layer of an NF membrane, with a flux of 26.7 L·m −2 ·h −1 ·bar −1 and a MWCO of 200 Da, formed only within 10 min. The membrane had high rejections of naproxen, bezafibrate, and ibuprofen (>90 %), and the rejection of NaCl was lower than 20 %, exhibiting a good selectivity for antibiotics toward monovalent ions. Compared with literature-reported mussel-inspired membranes, the proposed method resulted in a membrane with much higher permeance and a lower MWCO, indicating the improvement and advantages among the mussel-inspired methods for the synthesis of NF membranes.

关键词： Aminosilane coupling agent Ethanol-regulated oxidation Low MWCO Nanofiltration membranes Polyphenols

来源：评论

学校读者我要写书评

暂无评论

Performance of Repeated Cross Validation for Machine Learning Models in Building Energy Analysis 11th

Performance of Repeated Cross Validation for Machine Learnin...

引用

11th International Symposium on Heating, Ventilation and Air Conditioning, ISHVAC 2019

作者： Li, Xiangfei Yin, Baoquan Tian, Wei Sun, Yu Tianjin University of Technology and Education Tianjin300222 China Tianjin Architecture Design Institute Tianjin300074 China College of Mechanical Engineering Tianjin University of Science and Technology Tianjin300222 China Tianjin International Joint Research and Development Center of Low-Carbon Green Process Equipment Tianjin300222 China School of Architecture Harbin Institute of Technology Harbin150000 China

ISBN: (纸本)9789811395277

Machine learning models have been widely used in building energy assessment to provide fast and reliable energy estimation. To validate these machine learning models, the cross-validation technique has been often used to estimate model accuracy. However, most cross-validation methods are used without repetition to have only one value that may have large variations due to different sampling seeds. Therefore, this paper applies repeated cross validation to provide reliable model accuracy with small variations. An office building with ten input variables is used as case study to demonstrate the performance of cross validation in building energy analysis. The results indicate that repeated cross validation can have stable results with sufficient sampling data available and medium fold number (ten in this case). At least 200 sampling number is required to obtain reliable model accuracy estimation. Ten times of cross validation is recommended to reduce the variations of model accuracy. © 2020, Springer Nature Singapore Pte Ltd.

关键词： Office buildings

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：