检索结果-内蒙古大学图书馆

modification method and impact analysis of aerodynamic loads for fixed wind-wave hybrid devices

OCEAN ENGINEERING 2024年 293卷

作者： Jiang, Chunyu Cao, Feifei Cui, Jing Shi, Hongda Ocean Univ China Coll Engn Qingdao 266100 Peoples R China Ocean Univ China Shandong Prov Key Lab Ocean Engn Qingdao 266100 Peoples R China Pilot Natl Lab Marine Sci & Technol Qingdao 1Wenhai RdAoshanwei Qingdao 266237 Peoples R China Ocean Univ China Qingdao Municipal Key Lab Ocean Renewable Energy Qingdao 266100 Peoples R China Qingdao Gosci Intelligent Equipment Technol Co Ltd Qingdao Peoples R China

Aerodynamic load is one of the important loads that must be considered for wind-wave energy hybrid devices. In this study, the effects of blade angle and foundation structure vibration on aerodynamic loads are considered, and the traditional blade element momentum (BEM) is dynamically modified by the method of coordinate matrix transformation and vibration function analysis, starting from the relative inflow angle and the instantaneous wind speed of the wind turbine, and the aerodynamic loads of the wind turbine were simulated by using the improved BEM theory. The correctness of the proposed method in this study is verified by comparing the data of a large number of researchers and the computational results of OpenFast. A simulation study has been carried out using AQWA, combining the modified aerodynamic load of the wind turbine and the hydrodynamic load of the wave energy device, to analyze the variation trend of the base structure response of the wind-wave hybrid device under general and extreme conditions. The results show that the method developed in this paper can provide theoretical reference for the development and stable operation of wind-wave hybrid device.

关键词： Wind-wave hybrid device Dynamic response analysis Offshore wind turbine modification method

来源：评论

学校读者我要写书评

暂无评论

The research advance of resistant starch: structural characteristics, modification method, immunomodulatory function, and its delivery systems application

引用

CRITICAL REVIEWS IN FOOD SCIENCE AND NUTRITION 2024年第29期64卷 10885-10902页

作者： Li, Jiali Wu, Zufang Liu, Lingyi Yang, Junsi Wang, Lei Li, Zhaofeng Liu, Lianliang Ningbo Univ Sch Food & Pharmaceut Sci State Key Lab Managing Biot & Chem Threats Qual & Zhejiang Malaysia Joint Res Lab Agr Prod Proc & Nu Ningbo Zhejiang Peoples R China Univ Nebraska Lincoln Dept Food Sci & Technol Lincoln NE USA Guizhou Univ Sch Liquor & Food Engn Guiyang Guizhou Peoples R China Jiangnan Univ State Key Lab Food Sci & Technol Wuxi Jiangsu Peoples R China

Resistant starch, also known as anti-digestion enzymatic starch, which cannot be digested or absorbed in the human small intestine. It can be fermented in the large intestine into short-chain fatty acids (SCFAs) and metabolites, which are advantageous to the human body. Starches can classify as rapidly digestible starch (RDS), slowly digestible starch (SDS), and resistant starch (RS), which possess high thermal stability, low water holding capacity, and emulsification characteristics. Resistant starch has excellent physiological functions such as stabilizing postprandial blood glucose levels, preventing type II diabetes, preventing intestinal inflammation, and regulating gut microbiota phenotype. It is extensively utilized in food processing, delivery system construction, and Pickering emulsion due to its processing properties. The resistant starches, with their higher resistance to enzymatic hydrolysis, support their suitability as a potential drug carrier. Therefore, this review focuses on resistant starch with structural features, modification characteristics, immunomodulatory functions, and delivery system applications. The objective was to provide theoretical guidance for applying of resistant starch to food health related industries.

关键词： Resistant starch structural characteristics modification method delivery system immunity gut microbiota

来源：评论

学校读者我要写书评

暂无评论

Intelligent modification method for Individual Difference of Aero-engine based on CNN-GAN 9

Intelligent Modification Method for Individual Difference of...

引用

9th IEEE International Conference on Advanced Robotics and Mechatronics (ICARM)

作者： Chen, Ying Zhou, Wenxiang Huang, Jinquan Nanjing Univ Aeronaut & Astronaut Coll Energy & Power Engn CO-210000 Nanjing Jiangsu Peoples R China

ISBN: (纸本)9798350385731;9798350385724

High-precision engine model is the basis of health management and intelligent control research, but deviations in the manufacturing process and losses in the operating process will lead to the existence of individual differences, which will reduce the accuracy of turbofan engine model. Aiming at the model accuracy problem caused by individual differences of aero-engines, integrating the strong information extraction ability of Convolutional Neural Network (CNN), a deterministic structural model updating method based on improved Generative Adversarial Network (GAN) is proposed to modify the individual difference deviation of multivariable turbofan engine model.

关键词： convolutional neural network generative adversarial network modification method areo-engine

来源：评论

学校读者我要写书评

暂无评论

Analysis of the modification method for Cook-Torrance Model

Analysis of the Modification Method for Cook-Torrance Model

引用

International Conference on Mechatronics Engineering and Computing Technology (ICMECT)

作者： Li Ming-zhe Zhao Ji-guang Zhou Yun-ting Acad Equipment Co Postgrad Management Beijing 101416 Peoples R China

ISBN: (纸本)9783038351153

A visible difference exists between the measured Bidirectional Reflectance Distribution Function (BRDF) and the modeled BRDF. The Cook-Torrance model is chosen to simulate the BRDF for its popularity and flexibility. Taking aluminum for example, this paper analyzes the difference between the experiment data and the simulation data. There is a great and remarkable difference in the situation of specular reflection by comparison in this paper. Consequently, trigonometric factor, numerator and denominator addition factors and scaling factor are brought in the Cook-Torrance model. Finally, a modified Cook-Torrance model is presented. The simulation data of the modified Cook-Torrance model show that it's more suitable for the analysis of the aluminum BRDF than the classic Cook-Torrance model.

关键词： Bidirectional Reflectance Distribution Function Cook-Torrance Model modification method Specular Reflection Line

来源：评论

学校读者我要写书评

暂无评论

modification Design method for an Enveloping Hourglass Worm Gear with Consideration of Machining and Misalignment Errors

引用

Chinese Journal of Mechanical Engineering 2013年第5期26卷 948-956页

作者： DENG Xingqiao WANG Jinge HORSTEMEYER Mark F School of Mechanical Engineering and Automation Xihua University Center for Advanced Vehicular Systems Mississippi State University

The influences of machining and misalignment errors play a very critical role in the performance of the anti-backlash double-roller enveloping hourglass worm gear(ADEHWG).However,a corresponding efficient method for eliminating or reducing these errors on the tooth profile of the ADEHWG is seldom *** gear engagement equation and tooth profile equation for considering six different errors that could arise from the machining and gear misalignment are derived from the theories of differential geometry and gear ***,the tooth contact analysis(TCA) is used to systematically investigate the influence of the machining and misalignment errors on the contact curves and the tooth profile by means of numerical analysis and three-dimensional solid *** research results show that vertical angular misalignment of the worm wheel(Δβ) has the strongest influences while the tooth angle error(Δα) has the weakest influences on the contact curves and the tooth profile.A novel efficient approach is proposed and used to minimize the effect of the errors in manufacturing by changing the radius of the grinding wheel and the approaching point of *** results from the TCA and the experiment demonstrate that this tooth profile design modification method can indeed reduce the machining and misalignment *** modification design method is helpful in understanding the manufacturing technology of the ADEHWG.

关键词： worm gears tooth contact analysis machining and misalignment errors tooth profile errors modification method

来源：评论

学校读者我要写书评

暂无评论

Removal of Fluoride by Modified Adsorbents: A Review of modification methods and Adsorption Mechanisms

引用

CHEMISTRY-AN ASIAN JOURNAL 2025年第0期20卷 e202401108页

作者： Liu, Yucheng Wang, Shanwei Chen, Mingyan Li, Huan Liao, Tingwei Southwest Petr Univ Res Inst Ind Hazardous Waste Disposal & Resource U Coll Chem & Chem Engn Chengdu 610500 Peoples R China

Fluoride is ubiquitously present in the natural environment, and its excessive levels can pose serious threats to human health and industrial production. Among various fluoride pollution control methods, adsorption is recognized for its optimal cost-effectiveness and adaptability. The mechanism of fluoride adsorption and the adsorption capacities of various modified adsorbents have been comparatively analyzed :natural minerals, biomass materials, metal oxides, and several emerging types of adsorbents, among which metal-based adsorbents show the best performance. Four modification methods to enhance the performance of adsorbents have been summarized: acid activation, thermal activation, surface functional group modification, and composite materials. Ultimately, this paper identifies the current limitations of adsorption methods for fluoride removal, including insufficient adsorption capacity and a narrow pH range of applicability. These findings are expected to offer valuable insights for the advancement of adsorbent materials research.

关键词： Fluoride Adsorption modification method Novel adsorbents

来源：评论

学校读者我要写书评

暂无评论

Industrial solid wastes to environmental protection materials for removal of gaseous pollutants:A review

引用

Green Energy & Environment 2025年第1期10卷 34-83页

作者： Jiacheng Bao Xin Sun Ping Ning Kai Li Jie Yang Fei Wang Lei Shi Maohong Fan Faculty of Environmental Science and Engineering Kunming University of Science and TechnologyKunming650500China College of Engineering and Physical Sciences and School of Energy ResourcesUniversity of WyomingLaramieWY82071USA College of Engineering Georgia Institute of TechnologyAtlantaGA30332USA

The application of industrial solid wastes as environmentally functional materials for air pollutants control has gained much attention in recent years due to its potential to reduce air pollution in a cost-effective *** this review,we investigate the development of industrialwaste-based functional materials for various gas pollutant removal and consider the relevant reaction mechanism according to different types of industrial solid *** see a recent effort towards achieving high-performance environmental functional materials via chemical or physical modification,in which the active components,pore size,and phase structure can be *** review will discuss the potential of using industrial solid wastes,these modified materials,or synthesized materials from raw waste precursors for the removal of air pollutants,including SO_(2),NO_(x),Hg^(0),H_(2)S,VOCs,and CO_(2).The challenges still need to be addressed to realize this potential and the prospects for future research *** suggestions for future directions include determining the optimal composition of these materials,calculating the real reaction rate and turnover frequency,developing effective treatment methods,and establishing chemical component databases of raw industrial solid waste for catalysts/adsorbent preparation.

关键词： Industrial solid waste Reaction mechanism modification method Air pollutants

来源：评论

学校读者我要写书评

暂无评论

Enhanced wastewater treatment using biochar-supported layered-double-hydroxide composites

引用

CHEMICAL ENGINEERING JOURNAL 2025年 506卷

作者： Huang, Ao Zhang, Nan Wang, Qian-Bin Zhao, Bo-Han Zhang, Rui-Bao Cheng, Ming Shi, Chen Hao, Xiao-Di Beijing Univ Civil Engn & Architecture Sino Dutch R&D Ctr Future Wastewater Treatment Tec Key Lab Urban Stormwater Syst & Water Environm Beijing 100044 Peoples R China Chinese Acad Agr Sci Inst Agr Environm & Sustainable Dev Beijing 100081 Peoples R China Beijing Univ Civil Engn & Architecture Key Lab Urban Stormwater Syst & Water Environm Minist Educ Beijing 100044 Peoples R China

With industrialization advances, the volume of wastewater produced has increased considerably. In recent years, biochar-loaded layered double hydroxides (BC-LDHs) have emerged as a low-cost, sustainable composite material with promising applications in wastewater treatment. Improving the adsorption performance of materials is a central focus in the field of wastewater treatment. Currently, most studies emphasize the adsorption applications of BC-LDHs. However, this study not only discusses existing mainstream methods for enhancing adsorption performance but also shifts the focus from BC modification to LDH synthesis. Building on this, new potential modification methods are proposed to achieve improved adsorption performance. One such method involves obtaining new anion-intercalated BC-LDHs through ion exchange. Another approach is to synthesize BC-LDHs via electrodeposition, which involves using an LDH as the working electrode and then loading BC onto it or using BC as one of the electrodes with a mixed metal salt solution as the electrolyte. Different synthesis methods often result in distinct material properties. The electrodeposition method is used to synthesize BC-LDHs with the aim of achieving material modification. In addition, the factors influencing BC-LDHs are analyzed. Through meta-analysis, the study identifies notable factors affecting the adsorption properties of pollutants, including different synthesis methods, the specific surface area of BC-LDHs, adsorbent dosage, and initial pH. This analysis offers a more intuitive foundation for guiding subsequent research by focusing on these critical factors. Finally, the main adsorption mechanism of BC-LDHs is summarized, and future research directions for BC-LDHs are proposed.

关键词： Sewage treatment modification method Adsorption performance Meta analysis Adsorption mechanism

来源：评论

学校读者我要写书评

暂无评论

Recent research advances in adsorption removal of gaseous hydrogen sulfide by biochar

引用

FUEL 2025年 388卷

作者： Gao, Xinyu Xiao, Zihan Wu, Pengju Liu, Yangxian Xu, Hui Wang, Yan Jiangsu Univ Sch Energy & Power Engn Zhenjiang 212013 Jiangsu Peoples R China Jiangsu Univ Sch Environm & Safety Engn Zhenjiang 212013 Jiangsu Peoples R China

Biochar is considered as a promising gaseous hydrogen sulfide (H2S) adsorbent due to its several advantages, such as wide availability of raw materials, low cost, environmental friendliness, easy surface regulation, etc. The recent research advances in adsorption removal of gaseous H2S using biochars are reviewed. The modification methods and effects of biochar, as well as the adsorption effects and mechanisms of H2S by various modified biochars, are systematically introduced. The main process parameters, technical performance, adsorption mechanism, and advantages and disadvantages of biochar modification and H2S adsorption are summarized in detail. The main modification methods include acid/alkali high-temperature activation, microwave activation, nitrogen doping modification, metal oxide modification and some emerging modification methods. These modification methods can effectively improve the H2S adsorption performance of biochar by improving the pore structure of biochar and increasing the functional groups or/and active sites on the surface of biochar. Multimetals modification usually can achieve higher H2S adsorption capacity due to synergistic effects of multimetallic components compared to single metal modification. Free radical-induced advanced oxidation technologies (AOTs) can simultaneously improve the pore structure of biochar and increase surface functional groups, and its modification process is environmentally friendly, indicating a promising development prospect. This article is likely to offer some useful information and suggestions for developing new modified biochar adsorbents for the removal of gaseous H2S.

关键词： Hydrogen sulfide (H 2 S) Biochar Biomass porous carbons Adsorption modification method

来源：评论

学校读者我要写书评

暂无评论

Which Type of Carbon Nitride More Suits Photocatalysis: Amorphous or Crystalline?

引用

ADVANCED FUNCTIONAL MATERIALS 2025年第3期35卷

作者： Liu, Jia Tian, Na Ren, Shuo Zhang, Zhijie Yang, Zhantao Xue, Yuanqi Zhang, Yihe Gao, Lu Huang, Hongwei China Univ Geosci Beijing Sch Mat Sci & Technol Beijing Key Lab Mat Utilizat Nonmet Minerals & Sol Natl Lab Mineral MatEngn Res CtrMinist Educ Geol Beijing 100083 Peoples R China

Graphitic carbon nitride (g-C3N4) has witnessed tremendous research interest due to its narrow bandgap, intrinsic 2D structure, and abundant raw materials. Although g-C3N4 has some shortcomings such as low specific surface area, poor conductivity and rapid charge carries recombination, various modification methods are constantly emerging to enhance its potential application value in photocatalysis. Increasing the crystallinity of g-C3N4 is an effective strategy to improve the in-plane charge separation efficiency. However, it is also reported that amorphous g-C3N4 possesses a higher adsorption and activation ability over reactants due to its richer surface functional groups than crystalline g-C3N4. Which type of g-C3N4 more suits photocatalysis, and which modification method is more suitable for boosting the activity of two types of g-C3N4, respectively? Based on these issues, the recent advances in the preparation and properties of amorphous and crystalline g-C3N4 are summarized, and their performance improvement strategies are overviewed thoroughly. Upon systematic comparison and analysis, which modification strategy is more suitable for the two types of g-C3N4, respectively, is proposed. Their applications are also summed up especially in environment remediation and energy conversation. Finally, the ongoing opportunities and future challenges for amorphous and crystalline g-C3N4 in the photocatalysis territory are taken for consideration. The recent advances in the preparation and properties of amorphous and crystalline g-C3N4 are summarized, and their performance improvement strategies are also overviewed thoroughly. Upon systematic comparison and analysis, the photocatalytic performance of both amorphous and crystalline g-C3N4 is summarized, offering their perspectives on which form is more suitable for photocatalytic applications. image

关键词： modification method photocatalysis preparation

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：