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Travel Time Estimation by means of Google API Data ⁎

IFAC-PapersOnLine 2020年第2期53卷 15434-15439页

作者： Jan M.S. Wagner Manuel Eschbach Kari Vosseberg Marc Gennat Graduate Program in Product Development in Mechanical Engineering Hochschule Niederrhein University of Applied Sciences 47805 Krefeld Germany

Modern urban planning not only has to coordinate the needs of many different inhabitants and traffic participants, but also faces other challenges such as modal shift towards sustainable transportation. A comprehensive database of historical traffic, which would facilitate a decision based on data, is lacking in many cities. This became clear in consultation with our partners from the city of Krefeld. A novel method is the use of public available traffic information such as traffic colors or travel time data from navigation providers. In this contribution a method is applied to estimate the travel duration from the traffic colors on city level. Here we show for the first time how it can be applied cost-effectively and how the accuracy can be estimated in combination with a validation of the database by test drives for urban streets. It will also be investigated, whether speed variation has an influence on the estimation of driving time. We found out that this influence is negligible for the investigated example and the mean deviation of estimation accuracy from the measured values is less than six percent. Based on these promising results, it is possible to build up a database for improved urban and traffic planning at low cost. This can lead to better information for all traffic participants, thus, an improved traffic flow control could result in a reduction of car traffic emissions in the end.

关键词： Parameter Estimation Convex optimization Floating Cars Travel Time Google Maps

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Enhanced angiotensin-converting enzyme inhibition and antioxidant activities through synergistic green tea and black rice extracts

Food Chemistry Advances

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Food Chemistry Advances 2025年 7.0卷

作者： Chaisan, Worrapob Salee, Nuttinee Pakakaew, Peeraporn Utama-ang, Niramon Division of Product Development Technology Faculty of Agro Industry Chiang Mai University Thailand Program of Food Production Engineering and Innovation College of Integrated of Science and Technology Rajamangala University of Technology Lanna Chiang Mai Thailand Division of Food Science and Technology Faculty of Agro Industry Chiang Mai University Thailand Cluster of High Value Products from Thai Rice and Plants for Health Chiang Mai University Thailand

The study investigated the synergistic effects of green tea extract (GTE) and black rice extract (BRE) on total phenolic content, flavonoid content, antioxidant activities and angiotensin-converting enzyme (ACE) inhibition. The influence of GTE concentrations (14.64–85.36 % w/w) and pH levels (3.59–6.41) was analyzed by regression and response surface methodology. Optimized conditions of synergistic effect (85.36 % w/w GTE and 14.64 % of BRE at pH 6.0) yielded the highest antioxidant activities (DPPH IC₅₀ = 0.112±0.015 mg/mL, ABTS = 89.14±1.58 mmol TE/100 g, FRAP = 373.66±3.42 mmol Fe²⁺/100 g), the highest total phenolic (120.98±1.60 mmol GAE/100 g), flavonoid contents (15.28±1.07 mmol QE/100 g) and ACE inhibitory activity (IC₅₀ = 6.125±0.106 μg/mL). Therefore, this condition was selected to produce the combined extract for determining the combination index (CI). The CI was 0.349±0.075 for DPPH and 0.505±0.019 for ACE inhibition, indicating confirmation of a synergistic effect. These findings suggest that the combined extract could serve as a valuable functional ingredient, enhancing access to bioactive-rich resources for nutritionally supportive and sustainable diets. With potential applications in food systems and healthcare, this agro-ingredient may contribute to improved access to resources for blood pressure management and non-communicable disease (NCDs) prevention, aligning with broader goals in nutrition and health equity. © 2025

关键词： ACE inhibitory activity Antioxidant activity Black rice Green tea Synergistic effect

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Synthesis and thermal stabilizing effect on polyvinyl chloride of calcium/zinc carboxylate from palm fatty acid distillate: Effect of metal to fatty acid ratio

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AIP Conference Proceedings 2024年第1期3073卷

作者： I. Dewa Gede Arsa Putrawan Nadya Amalia Pratiwi Nento Adli Azharuddin Antonius Indarto Dendy Adityawarman Chemical Engineering Product Design and Development Research Group Institut Teknologi Bandung Indonesia Master Program in Chemical Engineering Institut Teknologi Bandung Indonesia Chemical Reaction Technology and Catalysis Research Group Institut Teknologi Bandung Indonesia Chemical Engineering Process Design and Development Research Group Institut Teknologi Bandung Indonesia

Polyvinyl chloride (PVC) has many applications in construction, such as pipes, floors, roofs, walls, frames, and cables. Since it is easily degraded by heat, a heat stabilizer must be added to the PVC resin before it is molded into final products. Mixed calcium/zinc carboxylate has become a popular PVC thermal stabilizer since it is more friendly than the conventional lead base thermal stabilizers and is relatively inexpensive. This research aims to investigate the synthesis and assess the effectiveness of a mixed calcium/zinc thermal stabilizer in stabilizing PVC. The stabilizer was prepared from palm fatty acid distillate (PFAD), and different metal salt-to-fatty acid molar ratios were employed for the study. The synthesis was carried out by a metathesis method at 10% deficiency, stoichiometric, and 10% excess of metal salt-to-fatty acid molar ratio. The stabilizing effects of the obtained metal carboxylates as mixed metal thermal stabilizers have also been evaluated by standard thermal stability tests. The calcium and zinc carboxylates prepared at a 10% deficiency were found to have high pHs and lower metal contents than those at stoichiometric molar ratios due to the presence of residual sodium soap. Their thermal stabilizing effects on PVC are also worst when prepared at a deficient metal salt-to-fatty acid molar ratio. Increasing the metal-to-fatty acid molar ratio above the stoichiometric requirement lowers the thermal stabilizing effect of zinc carboxylate but has little influence on the thermal stabilizing effect of calcium carboxylate obtained. Synthesis at stoichiometric metal salt-to-fatty acid molar ratios is recommended for preparing calcium and zinc carboxylates as mixed metal PVC thermal stabilizers.

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Heat transfer coefficient on stirring palm fatty acid distillate in a jacketed tank at a dynamic stage

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AIP Conference Proceedings 2024年第1期3073卷

作者： I. Dewa Gede Arsa Putrawan Yona Octavia Adli Azharuddin Antonius Indarto Dendy Adityawarman Chemical Engineering Product Design and Development Research Group Institut Teknologi Bandung Bandung Indonesia Tekno Buana Globalindo Company Bandung Indonesia Master Program in Chemical Engineering Institut Teknologi Bandung Bandung Indonesia Chemical Reaction Technology and Catalysis Research Group Institut Teknologi Bandung Bandung Indonesia Chemical Engineering Process Design and Development Research Group Institut Teknologi Bandung Bandung Indonesia

Convective heat transfer coefficients for palm fatty acid distillate have been measured in a batch stirred tank. The heat transfer took place at a dynamic stage in jacketed tanks with a working volume of 3.5 and 10.0 liters, at temperature ranging from 60 to 80°C and Reynolds number ranging from 1000 to 6000. The results indicate that the convective heat transfer coefficient is in the range of 230 to 680 W·m-2·°C-1. The data fit well with the existing empirical model and can be expressed as Nu=0.5·Re⅔·Pr⅓ where Nu, Re, and Pr are Nusselt, Reynolds, and Prandtl numbers.

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A simulation methodology to evaluate electromagnetic compatibility in printed circuit boards 4

A simulation methodology to evaluate electromagnetic compati...

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4th International Symposium on Instrumentation Systems, Circuits and Transducers, INSCIT 2019

作者： Comin, Rodrigo Ferreira, Sandro Binsfeld Rhod, Eduardo Luis Product Development Engineering Valeo Thermal Bus Systems Caxias do Sul Brazil E. E. Graduate Program - Itt-Chip Unisinos University Sao Leopoldo Brazil

ISBN: (纸本)9781728121093

In competitive segments like automobile and bus manufacturing industries, quality of vehicles need to be improved constantly to meet internal and external market demands. Compliance with international standard regulations for electronic equipment require expensive tests as part of the design and certification processes. In this work, a methodology to simulate electromagnetic compatibility tests is proposed, enabling cost reduction during certification, and consequently reducing development time. Two different printed-circuit-board layouts of a DC/DC-converter case study are compared through measurements and simulations to validate the methodology. © 2019 IEEE.

关键词： Electromagnetic compatibility

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Mechanical behaviours and modelling of nanostructure anode in Lithium-Ion battery (LIB) – enabling low-cost 3D nanostructures in future LIB for sustainable energy storage

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AIP Conference Proceedings 2023年第1期2594卷

作者： C. Harito J. Wijaya R. Fajarna S. K. Tippabhotla O. Thomas F. E. Gunawan A. S. Budiman Industrial Engineering Department Faculty of Engineering Bina Nusantara University Jakarta Indonesia 11480 Industrial Engineering Department BINUS Graduate Program – Master of Industrial Engineering Bina Nusantara University Jakarta Indonesia 11480 Xtreme Materials Lab Engineering Product Development Singapore University of Technology and Design (SUTD) Singapore Aix-Marseille Université CNRS IM2NP UMR 7334 Marseille France

Anode design is a crucial factor for the further development of lithium-ion battery (LIB) technology, especially in terms of achieving high charging rate performance, as typically needed in electric vehicles (EV). In the present work, a unique battery test cell was designed and fabricated to study in-situ the mechanical behavior of the silicon nanowire electrode during electrochemical lithiation using synchrotron X-ray microdiffraction. Modelling of the nanostructured anode was also performed to provide further understanding of the in-situ findings. The combined approach provides further in-depth understanding of the evolution of the mechanics in the silicon nanowires (1D nanostructure) during operation of the battery, and furthermore shows the path for potentially enhancing the performance of the device. 3D nanostructures have been identified as the key to dramatically enhanced kinetics performance of LIB. However, existing fabrication methodologies for 3D nanostructures are inherently expensive – using advanced lithography techniques or other nanopatterning methodologies, as well as using additive manufacturing approaches. Electrospinning (as an integrated additive manufacturing methodology) may be used to produce low-cost 3D-printed fiber structures. This will pave the way to achieve the order of magnitude increase in battery kinetics as needed to realize the vision of the sustainable transportation.

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Modeling crystallographic anisotropy in interfacial sliding phenomenon in nanoindentation of nanoscale Cu/Nb accumulated rolling bonding (ARB) multilayered materials

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AIP Conference Proceedings 2023年第1期2594卷

作者： A. S. Budiman R. Sahay F. E. Gunawan C. Harito H. Gunawan I. Radchenko E. Navarro S. Escoubas T. Cornelius O. Thomas N. Raghavan Industrial Engineering Department BINUS Graduate Program – Master of Industrial Engineering Bina Nusantara University Jakarta Indonesia Xtreme Materials Lab Engineering Product Development Singapore University of Technology and Design (SUTD) Singapore Industrial Engineering Department Faculty of Engineering Bina Nusantara University Jakarta Indonesia 11480 Center for Advancing Materials Performance from the Nanoscale (CAMP-nano) State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University (XJTU) Xi'an China Aix-Marseille Université CNRS IM2NP UMR 7334 Marseille France

Nanoindentation is widely used to investigate mechanical properties of materials at small scales. In this work, owing to the presence of contrasting interfaces along rolling (RD) and transverse direction (TD), a 16 nm accumulative roll bonding (ARB) Cu/Nb nanolaminate as a test material due to its crystallographic anisotropy was used. Nanoindentation was performed and then Scanning Probe Microscopy (SPM) data was conducted to measure the pile-up height along RD and TD in the nanoscale Cu/Nb multilayered materials. It was found that the 16 nm Cu/Nb ARB nanolayered material along RD showed higher surface pile-up than TD attributed the observation to the variation in the Cu/Nb interface plasticity along RD and TD. Further, a comparation and validation of experimental indentation data by performing 2D axisymmetric Finite Element Analysis (FEA) indicated that the simulation compares well with the experimentally generated load-displacement curves, while qualitative agreement was obtained with the pileup data. It is believed that the characterization of surface pile-up is very important for enabling the nanoscale Cu/Nb ARB nanolaminates as the novel stretchable/flexible metallic conductor materials (with emerging applications such as e-skins, human-computer interaction, and soft robotics) that may prove crucial for the global green and sustainability efforts (soft robots for collecting plastic trashes in ocean).

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Impact on the design phase of industrial housing when applying a product platform approach 26

Impact on the design phase of industrial housing when applyi...

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26th Annual Conference of the International Group for Lean Construction: Evolving Lean Construction Towards Mature production Management Across Cultures and Frontiers, IGLC 2018

作者： Thajudeen, Shamnath Lennartsson, Martin Elgh, Fredrik Prowood Graduate Program. Product development department School of Engineering Jönköping Sweden Department of building engineering and lighting science School of Engineering Jönköping Sweden Product development department School of Engineering Jönköping Sweden

ISBN: (纸本)9789380689296

With a glulam-based post-beam building system, a variety of building solutions is offered on the market for multi-story buildings. The building system must be adaptable to the demands of each project. However, short lead-time, efficient manufacturing and assembly must be ensured. The use of product platforms has been acknowledged as an enabler to manage external (customer) and internal (production) efficiency. The building system cannot be locked to a set of standard components as a high level of customisation is required. A set of methods and tools is needed to support the design work and to ensure that solutions stay inside the boundaries of the platform definition. The aim of this work is to map the state-of-practice in the design phase for a glulam building system from a platform theory perspective and outline a path forward for applying a sustainable platform development in companies where a component-based product platform does not suffice. Empirical data were gathered from an on-going product platform development including interviews and document analysis. The results show the lack of definition in platform-based product development from a theoretical perspective and need for development of support methods for design that align with different production strategies. © IGLC 2018 - Proceedings of the 26th Annual Conference of the International Group for Lean Construction: Evolving Lean Construction Towards Mature production Management Across Cultures and Frontiers. All rights reserved.

关键词： Housing

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Guanandi ( Calophyllum brasiliense ) seed vegetable oil: Characterization, in vitro safety, and feasibility of use as a pharmaceutical bioinput

Next Research

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Next Research 2025年第1期2卷

作者： Gabriel Mendes da Cunha Nayhara Madeira Guimarães Rodrigo de Almeida Romagna Ramon Campos Vieira Larissa Kéllen Ferreira Marcelo Ferreira Golvim Filho Juliana Aparecida Severi Ricardo Machado Kuster Eduardo Frizzera Meira Rodrigo Rezende Kitagawa Cristiane dos Santos Giuberti Janaina Cecilia Oliveira Vilanova Graduate Program in Pharmaceutical Sciences Center of Health Sciences Federal University of Espírito Santo (UFES) 29047-105 Vitória ES Brazil Graduate Program in Veterinary Sciences Center for Agricultural Sciences and Engineering Federal University of Espírito Santo (UFES) 29500-000 Alegre ES Brazil Pharmaceutical Product Development Laboratory Center of Exact Natural and Health Sciences Federal University of Espírito Santo (UFES) 29500-000 Alegre ES Brazil Department of Pharmacy and Nutrition Center of Exact Natural and Health Sciences Federal University of Espírito Santo (UFES) 29500-000 Alegre ES Brazil

Calophyllum brasiliense Cambess (guanandi) is a native species with significant economic potential for reforestation and the wood industry, as well as a promising source of pharmaceutical bioinputs, aligning with the United Nations' 2030 Agenda for Sustainable development. This study evaluated the feasibility of utilizing the vegetable oil obtained from guanandi seeds (OVSG) as a pharmaceutical ingredient. Gas chromatography-mass spectrometry analysis identified palmitic, oleic, linoleic, and stearic acids in the OVSG, which together represent 95 % of the lipid fraction of the bioinput. Biological in vitro assays using L929 fibroblasts demonstrated non-cytotoxicity (CI 50 > 200 µg/mL), stimulation of cell proliferation, and healing activity at low concentrations (12.5 - 25 µg/mL). The anionic base cream, prepared by the conventional method and containing 10 % w/w of OVSG, in the absence of synthetic emollients, showed adequate preliminary physical stability and the required texture profile for topical use. The wound healing activity of this formulation was compared with that of a cream with the same formulation, but without OVSG and containing 5 % w/w of allantoin, demonstrating an equivalent effect. This study is unprecedented and demonstrates that OVSG is a viable bioinput for applications as an emollient, positioning the species as a sustainable source of non-wood forest resources for pharmaceutical applications.

关键词： Non-wood forest resource Emulsions Vegetable oil Natural emollient

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Correction to: Biological synthesis and characterization of iron oxide (FeO) nanoparticles using Pleurotus citrinopileatus extract and its biomedical applications

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Biomass Conversion and Biorefinery 2023年第11期14卷 12587-12587页

作者： Manimaran, Kumar Yanto, Dede Heri Yuli Govindasamy, Mani Karunanithi, Bogeshwaran Alasmary, Fatmah Ali Habab, Reem Abdulrahman Research Center for Applied Microbiology National Research and Innovation Agency (BRIN) Cibinong Republic of Indonesia Department of Product Development Institute of Biotechnology Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences (SIMATS) Chennai India Faculty International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City Taiwan Korea University Seongbuk-gu Republic of Korea Department of Research and Innovation Saveetha School of Engineering SIMATS Thandalam India Department of Petroleum Engineering Dhaanish Ahmed College of Engineering Chennai India Department of Chemistry College of Science King Saud University Riyadh Saudi Arabia

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