检索结果-内蒙古大学图书馆

IEEE International Conference on Industrial engineering and engineering Management

作者： F. Alamsjah M. Asrol S. M. Sukarta Industrial Engineering Department BINUS Graduate Program - Master of Industrial Engineering Bina Nusantara University Jakarta Indonesia BINUS CREATES Jakarta Indonesia

This article strives to study the direct effects of managers' disruptive skills to survive in a digital revolution assessed indirectly by organizational agility. In addition, the interactions of digital orientation are also assessed. A conceptual framework was devised to investigate the aforementioned correlations. Five hypotheses were developed and tested with data from 100 respondents who were affected by digital transformation and with positions one level above the manager level or higher. SmartPLS is used for analysis and to generate 500 bootstrap samples. This study makes three distinct contributions to the existing literature on digital transformation. First, digital disruptive skills have a direct impact on both organizational agility and organizational resilience. Second, leadership abilities have a strong beneficial impact on organizational agility and resilience across all three digital disruptive talents examined in this study. Finally, digital orientation has little effect on organizational resilience when it comes to digital disruptive talents.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Simultaneous orthogonal shearography using two pairs of parallel slits and a tetra-split lens 13

Simultaneous orthogonal shearography using two pairs of para...

引用

Optical Measurement Systems for Industrial Inspection XIII 2023

作者： Lima, Tainara Pedrosa Barrera, Estiven Sánchez de Oliveira, Bernardo C.F. Armando Albertazzi, G. Graduate Program in Mechanical Engineering Technological Center Federal University of Santa Catarina PO Box 476 - University Campus Trindade SC Florianópolis88040-900 Brazil Universidad Tecnológica de Bolívar Bolivar Cartagena Colombia

ISBN: (数字)9781510664463

ISBN: (纸本)9781510664456

There are a growing number of industrial applications for shearography, especially in non-destructive testing of composite materials. Its tolerance to hostile environments is probably the most relevant success factor for industrial applications. The introduction of carrier fringes for phase recovery, replacing temporal phase shift techniques, allows measurements with a single exposure for each loading state, making shearography even more robust. Some defects are better evident when the shearing direction is horizontal. Others are best viewed with a vertical shearing direction. Thus, it is desirable to inspect in both directions. Fortunately, the literature reports some configurations capable of using carrier fringes to perform simultaneous measurements in more than one shearing direction. These systems work well, but since they use a mask with circular holes, they require a high amount of light. An alternative is the use of a pair of oblong slits, which increases the amount of light captured. This paper extends the use of oblong slit pairs for simultaneous measurement in two orthogonal shearing directions. Two pairs of parallel oblong slits are arranged orthogonally on the system mask. Although the Fourier transform of the resulting signal at the camera sensor contains the desired signals as well as a crosstalk between the slit pairs. However, the mask can be designed in such a way that the orthogonal signals are separable. To promote shearing in orthogonal directions, a polymeric lens was sectioned, forming four quadrants of 90°. The quadrants were radially displaced and arranged so that each oblong slit covers only one quadrant of the lens. As a result, four laterally shifted images are formed, two of them with horizontal shearing and the other two with vertical shearing. A proof-of-concept prototype was developed and the first results were evaluated by the authors in the laboratory environment and are presented in this article. The paper also shows details of the

关键词： Lenses

来源：评论

学校读者我要写书评

暂无评论

Towards a smart reconfiguration process for complex product manufacturing based on industrial robot cells

引用

IFAC-PapersOnLine 2022年第2期55卷 108-113页

作者： Murillo Skrzek Leandro L. da Silva Anderson L. Szejka Industrial and Systems Engineering Graduate Program (PPGEPS) Pontifical Catholic University of Parana (PUCPR) Curitiba Brazil

The cost for companies that can custom their production line with precision and quality, through machining centres and laser cutting machines, is expensive, as the degree of machining freedom increases. Furthermore, the greater the complexity of the product to be manufactured, the more processes and equipment are needed to manufacture it. In this context, this research proposes a smart reconfiguration process for complex product manufacturing, based on industrial robotic manipulators, with 6 or more degrees of freedom, superior to conventional methods. With the integration of SolidWorks and PowerMill software, it was possible to apply the solution in an experimental case of blisk manufacturing milling and laser cutting of an engine head gasket. With CAD, CAM and robot simulation by the PowerMill tool, it was possible to validate the proposed solution, obtaining process data and information of milling and laser cutting. With the analysis of the simulation results, it was possible to identify the limitations of the project, such as (i) restriction in the precision of the machining of the product; (ii) amount of real-time supervision and monitoring information; and (iii) work area limit. However, the project can integrate two manufacturing processes to machine and cut complex parts with flexibility.

关键词： Robotic manipulator Milling Laser Cutting Reconfigurable Manufacturing Systems Complex Product Computer-Aided Manufacturing

来源：评论

学校读者我要写书评

暂无评论

The Impact of High Penetration of Renewable Energy Generation to Locational Marginal Price and Security of Supply: Case Study at Mae Hong Son City Thailand

The Impact of High Penetration of Renewable Energy Generatio...

引用

Power, Energy and Electrical engineering (CPEEE), International Conference on

作者： Patompong Boonsiri Suttichai Premrudeeprechacharn Paramet Wirasanti Watcharin Srirattanawichaikul Dept. of Electrical Engineering Faculty of Engineering Graduate Program in Electrical Engineering Chiang Mai University Chiang Mai Thailand Provincial Electricity Authority Bangkok Thailand Dept. of Electrical Engineering Faculty of Engineering Chiang Mai University Chiang Mai Thailand

ISBN: (数字)9798331520090

ISBN: (纸本)9798331520106

As the dramatically increasing power supply of renewable energy (RE) generation penetrates the distribution network, the security of the supply of the network, such as voltage level, is affected by the uncertain power output. The unstable voltage is caused by the tap of the distribution transformer, which is usually a fixed tap. In addition, the locational marginal price (LMP) depends on the number of power supplies from RE generation. The LMP of the whole local system is not lower, although the selling price of RE generation is lower than that of others, which results from the oversupply of RE generation to the network. The Provincial Electricity Authority (PEA) distribution network in Mae Hon Son City is also affected by the high penetration of renewable energy generation (RE generation). Currently, the proportion of power supply from RE generation is approximately 38% (in May) and 143% (in October) of total power supply to the load. During an oversupply of RE generation, the excess power reverses to PEA transmission network at approximately 8.79 MWh, which results in the security of supply and cost efficiency of distribution network companies such as PEA. The locational marginal price (LMP) in case of high penetration of RE generation is, however, slightly the same price as the non-penetration of RE generation under the Thailand electricity market condition. Therefore, the local generation management and dispatching are consequently considered for local power supply and demand balancing, maintaining the security of supply and reducing power losses and locational marginal price.

关键词： Renewable energy sources Costs Substations Power supplies Electricity Urban areas Distribution networks Companies Voltage Security

来源：评论

学校读者我要写书评

暂无评论

Superabsorbent Ternary Composite Desiccants Towards Energy-Efficient Dehumidification in Cooling Systems

Superabsorbent Ternary Composite Desiccants Towards Energy-E...

引用

Electric And Power engineering (EPEi), IEEE International Conference And Exposition On

作者： Mei Gui Vanessa Wee Amutha Chinnappan Seeram Ramakrishna Integrative Sciences and Engineering Program NUS Graduate School National University of Singapore Singapore Singapore Department of Mechanical Engineering: College of Design and Engineering Centre for Nanotechnology and Sustainability National University of Singapore Singapore Singapore

ISBN: (数字)9798350356199

ISBN: (纸本)9798350356205

Desiccant-coated heat exchangers (DCHEs) enable energy-efficient dehumidification, alleviating the overall heat load on vapor compression refrigeration systems. However, conventional desiccants have limited water uptake capacities and high regeneration temperature requirements. This work presents ternary composite desiccants comprising the metal-organic framework, MIL-101(Cr) (where MIL denotes Materials Institute Lavoisier), the superabsorbent polymer polyvinyl alcohol (PVA), and hygroscopic salts for enhanced moisture sorption. Gravimetric water sorption analyses revealed that desiccants containing lithium chloride ($\mathbf{L i C l}$) attained water uptakes greater than their calcium chloride- and copper (II) sulfate-containing counterparts. Subsequent cyclic tests identified the optimal MIL-101(Cr)/PVA/LiCl composite that adsorbed and desorbed moisture readily. From its water sorption isotherm, the 3MIL-101(Cr)/1PVA/1 LiCl desiccant has a water uptake capacity of $2.49 \mathrm{~g}_{\text {water }} \mathbf{g}_{\text {desiccant }}{ }^{-1}$ - nearly double that of MIL-101(Cr) and more than nine times that of silica gel. When coated onto a prototype heat exchanger, the 3MIL-101(Cr)/1PVA/1 LiCl composite demonstrated a gravimetric water uptake more than double that of the silica gel-coated control across three adsorption-desorption cycles. Moreover, low-grade waste heat of $50^{\circ} \mathrm{C}$ could partially regenerate these DCHEs, leaving behind residual moisture of less than $0.5 \mathbf{g}_{\text {water }}$ $\mathbf{g}_{\text {desiccant }}{ }^{-1}$. Consequently, the 3MIL-101(Cr)/1PVA/1LiCl-coated heat exchangers are effective dehumidifiers for addressing the latent heat load towards energy savings in cooling systems.

关键词： Salt Power engineering Heat engines Moisture Water heating Prototypes Energy efficiency Waste heat Refrigeration Resistance heating

来源：评论

学校读者我要写书评

暂无评论

The Impact of High Penetration of Renewable Energy Generation to Locational Marginal Price and Security of Supply: Case Study at Mae Hong Son City Thailand 15

The Impact of High Penetration of Renewable Energy Generatio...

引用

15th International Conference on Power, Energy, and Electrical engineering, CPEEE 2025

作者： Boonsiri, Patompong Premrudeeprechacharn, Suttichai Wirasanti, Paramet Srirattanawichaikul, Watcharin Graduate Program in Electrical Engineering Chiang Mai University Faculty of Engineering Dept. of Electrical Engineering Chiang Mai Thailand Provincial Electricity Authority Bangkok Thailand Chiang Mai University Faculty of Engineering Dept. of Electrical Engineering Chiang Mai Thailand

ISBN: (纸本)9798331520090

关键词： Electric power system security

来源：评论

学校读者我要写书评

暂无评论

Inhibitory effect of standardized Kaempferia parviflora extract on sarcopenia by improving protein metabolism pathways in aged C57BL/6J mice

引用

Journal of Traditional and Complementary Medicine 2025年

作者： Kim, Changhee Kang, Minseong Kim, Yeeun Hwang, Jae-Kwan Department of Biotechnology Yonsei University Seoul South Korea Graduate Program in Bioindustrial Engineering Yonsei University Seoul South Korea

Background: Sarcopenia is a muscle disease typically characterized by an age-related loss of muscle mass and function, leading to the deterioration of health in older adults. The current study aimed to investigate the therapeutic potential of standardized Kaempferia parviflora extract (KPE) on sarcopenia and elucidate its underlying molecular mechanisms. Methods: To assess the inhibitory effects of KPE on sarcopenia, 18-month-old C57BL/6J mice were employed as an aged model. The mice were orally administered 100 and 200 mg/kg KPE daily for 8 weeks. Results: KPE improved age-reduced grip strength and exercise endurance. It not only increased hindlimb muscle weight, volume, and myofiber cross-sectional area but also decreased abdominal fat volume and adipose tissue weight. KPE downregulated the mRNA expression of tumor necrosis factor alpha and interleukin-6 by inactivating nuclear factor kappa B protein expression and increasing the mRNA expression of anti-oxidant enzymes. Moreover, it significantly reduced the mRNA expression of muscle ring finger-1 and muscle atrophy F-box for proteolysis and stimulated the mammalian target of rapamycin pathway for protein translation by stimulating the phosphatidylinositol 3-kinase/Akt pathway. KPE also increased the relative mitochondrial DNA content by upregulating peroxisome proliferator-activated receptor gamma coactivator 1 alpha, nuclear respiratory factor 1, and mitochondrial transcription factor A mRNA expression. Conclusion: This study's findings demonstrate that KPE improves age-induced sarcopenia by regulating protein turnover and mitochondrial homeostasis. Therefore, KPE is potentially useful as a functional ingredient that inhibits or decelerates sarcopenia. © 2025 Center for Food and Biomolecules, National Taiwan University

关键词： Kaempferia parviflora Mitochondrial homeostasis Protein turnover Sarcopenia

来源：评论

学校读者我要写书评

暂无评论

An Adaptive Nonlinear $\mathcal{H}_{\infty}$ Control with Exact Parameter Estimation for Mechanical Systems

An Adaptive Nonlinear $\mathcal{H}_{\infty}$ Control with Ex...

引用

European Control Conference (ECC)

作者： Jonatan M. Campos Daniel N. Cardoso Guilherme V. Raffo Graduate Program in Electrical Engineering Universidade Federal de Minas Gerais Av. Belo Horizonte MG Brazil Department of Electronic Engineering Universidade Federal de Minas Gerais

ISBN: (数字)9783907144107

ISBN: (纸本)9798331540920

While exact parameter estimation is desired in numerous applications, many adaptive controllers require the fulfillment of the persistency of excitation (PE) condition to achieve that objective. Relaxing the PE condition poses a challenging theoretical problem and many research works have been devoted to addressing this issue. In this paper, we propose a novel adaptive robust nonlinear $\mathcal{H}_{\infty}$ optimal controller for trajectory tracking of mechanical systems subjected to unknown parameters. The proposed method includes an extra term, based on the dynamic regressor extension and mixing (DREM) approach, into the adaptive law which enables exact parameter estimation even without fulfilling the PE condition. The effectiveness of the proposed adaptive controller is corroborated with numerical experiments involving a CRS-A465 robot manipulator and comparison analyses with a classic adaptive nonlinear $\mathcal{H}_{\infty}$ controller.

关键词： Parameter estimation Trajectory tracking Europe Aerospace electronics Error correction codes Mechanical systems Adaptive control

来源：评论

学校读者我要写书评

暂无评论

Physically consistent gravitational waveform for capturing beyond general relativity effects in the compact object merger phase

引用

Physical Review D 2024年第8期109卷 084058-084058页

作者： Daiki Watarai Atsushi Nishizawa Kipp Cannon Graduate School of Science The University of Tokyo Tokyo 113-0033 Japan Research Center for the Early Universe (RESCEU) Graduate School of Science The University of Tokyo Tokyo 113-0033 Japan Physics Program Graduate School of Advanced Science and Engineering Hiroshima University Higashi-Hiroshima Hiroshima 739-8526 Japan

The merger phase of compact binary coalescences is the strongest gravity regime that can be observed. To test the validity of general relativity (GR) in strong gravitational fields, we propose a gravitational waveform parametrized for deviations from GR in the dynamical and nonlinear regime of gravity. Our fundamental idea is that perturbative modifications to a GR waveform can capture possible deviations in the merger phase that are difficult to model in a specific theory of gravity. One of notable points is that our waveform is physically consistent in the sense that the additional radiative losses of energy and angular momentum associated with beyond-GR modifications are included. Our prescription to ensure physical consistency in the whole coalescence process is expected to be applicable to any deviation from the standard model of compact binary coalescence, such as the extended models of gravity or the environmental effects of compact objects, as long as perturbative modifications are considered. Based on the Fisher analysis and the compatibility with Einstein-dilaton Gauss-Bonnet waveforms, we show that our parametrization is a physically consistent minimal one that captures the deviations in the nonlinear regime.

关键词： Gravitational waves

来源：评论

学校读者我要写书评

暂无评论

Unconventional assemblies of bisacylhydrazones:The role of water for circularly polarized luminescence

Aggregate

引用

Aggregate 2022年第5期3卷 185-193页

作者： Hye Jin Cho Dong Yeun Jeong Hwihyun Moon Taewoo Kim You Kyoung Chung Yeongdong Lee Zonghoon Lee Joonsuk Huh Youngmin You Changsik Song Department of Chemistry Sungkyunkwan UniversitySuwonGyeonggi 16419Republic of Korea Division of Chemical Engineering and Materials Science Graduate Program in System Health Science and EngineeringEwha Womans UniversitySeoul 03760Republic of Korea Center for Multidimensional Carbon Materials Institute for Basic Science(IBS)Department of Materials Science and EngineeringUlsan National Institute of Science and Technology(UNIST)Ulsan 44919Republic of Korea

Understanding the precise molecular arrangement of chiral supramolecular polymers is essential not only to comprehend complex superstructures like proteins and DNA but also for the development of next-generation optoelectronic materials,including materials displaying high-performance circularly polarized luminescence(CPL).Herein,we report the first chiral supramolecular polymer systems based on hydrazone–pyridinium conjugates comprising alkyl chains of different lengths,which afforded control of the apparent supramolecular *** supramolecular chirality is governed basically by the remote chiral centers of alkyl chains,helicity inversion was achieved by controlling the conditions under which the hydrazone building blocks underwent aggregation(i.e.,solvent compositions or temperature).More importantly,the addition of water to the system led to aggregationinduced hydrazone deprotonation,which resulted in a completely different selfassembly *** water molecules played an essential role,forming the assembly’s channel-like backbone,around which hydrazone molecules gathered as a result of hydrogen bonding *** co-assembly of an achiral hydrazone luminophore with the given supramolecular polymer system allowed the fabrication of a novel CPL-active hydrazone-based material exhibiting a high maximum value for the photoluminescence dissymmetry factor of -2.6×10^(-2).

关键词： circularly polarized luminescence(CPL) helicity control hydrazone self-assembly structural water supramolecular polymerization

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：