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Traces and echoes of <i>De Architecturai> by Marcus Vitruvius Pollio in the work of Xu Guangqi in 17th

Michela CIGOLA,Yibing FANG

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 3-11 doi: 10.1007/s11465-015-0359-5

Abstract: the 16th and 17th centuries by analyzing a book of Western technology that he wrote, namely, <i>Taixi Shuifai> (<i>On Western Hydraulicsi>).Taixi Shuifai>.We found that Archimedes’ screw and Ctesibius’ machine, which are included in Vitruvius’<i> De Architecturai> volumes, also appear in the work of Xu Guangqi.

Keywords： Vitruvius’ <i>De Architecturai>     Xu Guangqi’s <i>Taixi Shuifai>     Jesuit missionaries     Italian Renaissance    

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Low-k integration: Gas screening for cryogenic etching and plasma damage mitigation

Lefaucheux, Christian Dussarrat, Jean François de Marneffe

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 511-516 doi: 10.1007/s11705-019-1820-5

Abstract: The integration of porous organo-silicate low- materials has met a lot of technical challenges. One of the main issues is plasma-induced damage, occurring for all plasma steps involved during interconnects processing. In the present paper, we focus on porous SiOCH low- damage mitigation using cryogenic temperature so as to enable micro-capillary condensation. The aim is to protect the porous low- from plasma-induced damage and keep the -value of the material unchanged, in order to limit the RC delay of interconnexion levels while shrinking the microchip dimension. The cryogenic temperature is used to condense a gas inside the porous low- material. Then, the etching process is performed at the temperature of condensation in order to keep the condensate trapped inside the material during the etching. In the first part of this work, the condensation properties of several gases are screened, leading to a down selection of five gases. Then, their stability into the porous structure is evaluated at different temperature. Four of them are used for plasma damage mitigation comparison. Damage mitigation is effective and shows negligible damage for one of the gases at –50°C.

Keywords： low-<i>ki>     nanotechnology     micro-electronics     cryo-etching     plasma processing    

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Effects of SO

Quanming Liang, Jian Li, Hong He, Wenjun Liang, Tiejun Zhang, Xing Fan

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0926-6

Abstract: The effects of different loading of CeO and different preparation methods on De-NO activity of catalystsCeO helped to improve the De-NO activity and sulfur resistance.The optimal loading of CeO was 3% with the De-NO efficiency reached 89.9% at 140°C.The results showed that the De-NO activity of 3% CeO -VWT catalysts by one-step method was the sameNot only the thermal stability but also the De-NO activity of catalysts decreased with excess CeO competed

Keywords： Low temperature SCR     De-NO<i>xi> activity     Sulfur resistance     Ammonium sulfate    

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Torsional behavior of triangular web profile (TRIWP) steel section by experimental study

Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 409-419 doi: 10.1007/s11709-016-0358-6

Abstract: TriWP steel sections were smaller than that of the FW steel section under the same torsional loading i.e

Keywords： corrugated web     i-beam     non uniform steel section     torsion resistance     torsion angle     triangular web profile    

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Real drive cycles analysis by ordered power methodology applied to fuel consumption, CO

Antonia de los Santos López, Jesús Álvarez-Flórez

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1296-z

Abstract: Abstract • New method named CAbOP is presented based on ordering data according to power. • Three emission models are used and their emission results compared. • Emissions data are analyzed in real driving cycles under CAbOP criteria. • Methodology to collect data and reconstruct lost data in real urban driving cycles. In this work three fuel consumption and exhaust emission models, ADVISOR, VT-MICRO and the European Environmental Agency Emission factors, have been used to obtain fuel consumption (FC) and exhaust emissions. These models have been used at micro-scale, using the two signal treatment methods presented. The manuscript presents: 1) a methodology to collect data in real urban driving cycles, 2) an estimation of FC and tailpipe emissions using some available models in literature, and 3) a novel analysis of the results based on delivered wheel power. The results include Fuel Consumption (FC), CO2, NOx and PM10 emissions, which are derived from the three simulators. In the first part of the paper we present a new procedure for incomplete drive cycle data treatment, which is necessary for real drive cycle acquisition in high density cities. Then the models are used to obtain second by second FC and exhaust emissions. Finally, a new methodology named Cycle Analysis by Ordered Power (CAbOP) is presented and used to compare the results. This method consists in the re-ordering of time dependant data, considering the wheel mechanical power domain instead of the standard time domain. This new strategy allows the 5 situations in drive cycles to be clearly visualized: hard breaking zone, slowdowns, idle or stop zone, sustained speed zone and acceleration zone. The complete methodology is applied in two real drive cycles surveyed in Barcelona (Spain) and the results are compared with a standardized WLTC urban cycle.

Keywords： Cycle Analysis by Ordered Power (CAbOP)     Micro and macro models     Real drive cycle     NO<i>xi>    

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Opportunities and Challenges in Deep Mining: A Brief Review

De Silva,Tharaka D. Rathnaweera,Adheesha K. M. S. Bandara

Engineering 2017, Volume 3, Issue 4,   Pages 546-551 doi: 10.1016/J.ENG.2017.04.024

Abstract:

Mineral consumption is increasing rapidly as more consumers enter the market for minerals and as the global standard of living increases. As a result, underground mining continues to progress to deeper levels in order to tackle the mineral supply crisis in the 21st century. However, deep mining occurs in a very technical and challenging environment, in which significant innovative solutions and best practice are required and additional safety standards must be implemented in order to overcome the challenges and reap huge economic gains. These challenges include the catastrophic events that are often met in deep mining engineering: rockbursts, gas outbursts, high in situ and redistributed stresses, large deformation, squeezing and creeping rocks, and high temperature. This review paper presents the current global status of deep mining and highlights some of the newest technological achievements and opportunities associated with rock mechanics and geotechnical engineering in deep mining. Of the various technical achievements, unmanned working-faces and unmanned mines based on fully automated mining and mineral extraction processes have become important fields in the 21st century.

Keywords： Deep mining     Rock mechanics     Rockburst     <i>In situi>stresses     Mining automation    

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How did Archimedes discover the law of buoyancy by experiment?

Hidetaka KUROKI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1,   Pages 26-32 doi: 10.1007/s11465-016-0368-z

Abstract:

After Archimedes and Vitruvius era, for more than 2000 years, it has been believed that the displaced

Keywords： Archimedes’ principle     buoyancy     specific gravity     Eureka     Vitruvius     displaced water     balance     floating body    

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Nanoscale cryptographic architecture design using quantum-dot cellular automata Regular Article

Bikash Debnath, Jadav Chandra Das, Debashis De,dr.debashis.de@gmail.com

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 11,   Pages 1578-1586 doi: 10.1631/FITEE.1800458

Abstract: based on cryptography is a new paradigm in the field of nanotechnology. The overall performance of QCA is high compared to traditional complementary metal-oxide semiconductor (CMOS) technology. To achieve data security during nanocommunication, a cryptography-based application is proposed. The devised circuit encrypts the input data and passes it to an output channel through a cum data path selector, where the data is decrypted back to its original form. The results along with theoretical implication prove the accuracy of the circuit. Power dissipation and circuit complexity of the circuit have been analyzed.

Keywords： 量子点元胞自动机（QCA）；多数决定门密码学；加密；解密；纳米级路由    

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Research on Microelectromagnetic Relays

LI De-sheng, LIU Ben-dong

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 111-114 doi: 10.1007/s11465-005-0013-8

Abstract:

A new microelectromagnetic relay is presented and fabricated based on micromachining technology, aiming at the miniaturization and high manufacturing efficiency of electromagnetic relays. This microrelay is composed of a lower magnetic circuit, a planar exciting coil, and an upper magnetic armature. A complete magnetic circuit is composed, and the ON and OFF states are controlled by the current of the exciting coil. The dimension of this microrelay is 5 mm ? 5 mm ? 0.4 mm. The fabrication process mainly includes lithography, sputtering, electroplating, etching, sacrifice-layer technology, etc. Electromagnetic force is calculated theoretically. The calculation results are used for the optimization design of the armature and the number of turns of the exciting coil. A microelectromagnetic relay is fabricated and the initial test results are given. The resistance of the exciting coil is about 300 Ω. The switch-on state resistance is about 1.7 Ω at an exciting current of about 50 mA.

Keywords： sacrifice-layer technology     OFF     complete     microelectromagnetic     Electromagnetic    

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Crop residues: applications of lignocellulosic biomass in the context of a biorefinery

Maria Carolina ANDRADE, Caio de Oliveira GORGULHO SILVA, Leonora Rios de SOUZA MOREIRA, Edivaldo Ximenes

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 224-245 doi: 10.1007/s11708-021-0730-7

Abstract: Interest in lignocellulosic biomass conversion technologies has increased recently because of their potential to reduce the dependency on non-renewable feedstocks. Residues from a variety of crops are the major source of lignocellulose, which is being produced in increasingly large quantities worldwide. The commercial exploitation of crop residues as feedstocks for biorefineries which could be used to produce a variety of goods such as biofuels, biochemicals, bioplastics, and enzymes is an attractive approach not only for adding value to residues but also for providing renewable products required by the expanding bioeconomy market. Moreover, the implementation of biorefineries in different regions has the potential to add value to the specific crop residues produced in the region. In this review, several aspects of crop residue application in biorefineries are discussed, including the role of crop residues in the bioeconomy and circular economy concepts, the main technical aspects of crop residue conversion in biorefineries, the main crop residues generated in different regions of the world and their availability, the potential value-added bioproducts that can be extracted or produced from each crop residue, and the major advantages and challenges associated with crop residue utilization in biorefineries. Despite their potential, most biomass refining technologies are not sufficiently advanced or financially viable. Several technical obstacles, especially with regard to crop residue collection, handling, and pre-treatment, prevent the implementation of biorefineries on a commercial scale. Further research is needed to resolve these scale-up-related challenges. Increased governmental incentives and bioeconomic strategies are expected to boost the biorefinery market and the cost competitiveness of biorefinery products.

Keywords： crop residue     biorefinery     bioproduct     biomass     circular bioeconomy     enzyme    

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LAND-USE INTENSIFICATION TRENDS IN THE RIO DE LA PLATA REGION OF SOUTH AMERICA: TOWARD SPECIALIZATION

Paulo César DE FACCIO CARVALHO, Jean Víctor SAVIAN, Tomas DELLA CHIESA, William DE SOUZA FILHO, José, Priscila PINTO, Amanda POSSELT MARTINS, Sebastian VILLARINO, Júlio Kuhn DA TRINDADE, Pedro Arthur DE

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 1,   Pages 97-110 doi: 10.15302/J-FASE-2020380

Abstract: The Rio de la Plata region comprises central Argentina, Uruguay, and southern Brazil.

Keywords： grazing     integrated crop-livestock systems     mixed crops-livestock     Pampa    

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Mature

Giorgia De Guido, Matteo Compagnoni, Laura A. Pellegrini, Ilenia Rossetti

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 315-325 doi: 10.1007/s11705-017-1698-z

Abstract: in CLC the fuel and the combustion air are never mixed and the gases from the oxidation of the fuel (i.e

Keywords： CO2 capture     monoethanolamine     chemical looping combustion     oxygen carrier     perovskites    

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Environmental problems of vibrations induced by railway traffic

XIA He, CAO Yanmei, De Roeck Guido, Degrande Geert

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 142-152 doi: 10.1007/s11709-007-0015-1

Abstract: In this paper, a general review is made on the problems of vibrations of the ground and nearby buildings induced by railway traffic, and on the researches on this subject in theoretical analyses, numerical simulations, and field experiments. The characteristics of ground vibrations induced by railway traffic and their propagation, from the aspects of duration, intensity distribution, vehicle load and speed, are summarized. The vibration influences on the daily life of people, the operation of high-tech devices and the safety of buildings, and the vibration properties of subsoil and buildings adjacent to the underground, ground and elevated railway systems are introduced.

Keywords： underground     vibration     numerical     subsoil     propagation    

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Exploration of Strategies for Chronic Disease Prevention and Control and Relevant System Development in China

Long-de Wang

Frontiers of Engineering Management 2015, Volume 2, Issue 1,   Pages 2-12 doi: 10.15302/J-FEM-2015002

Abstract: Chronic non-communicable diseases have become a major threat to humanity. International studies have shown that of 57 million deaths worldwide in 2008, 36 million (63%) were caused by chronic non-communicable diseases; of these, 29 million (80%) occurred in low and middle income countries. The WHO predicts that if the current trend continues, the annual number of deaths due to chronic non-communicable diseases will increase to 55 million by 2030. Due to acceleration of industrialization and urbanization, along with population aging and rapid changes of people’s lifestyle, the morbidity and mortality from chronic diseases are rapidly increasing in China. Therefore, dealing with the prevalence of chronic non-communicable diseases has become one of the current major health issues for China to address. On the basis of summarizing the status of major chronic diseases in China, analyzing the key issues and key factors in chronic disease prevention and control, and reviewing and summarizing the experience from the previous projects, this paper proposes the following recommendations as strategies for chronic disease prevention and control and development of relevant system, which China should adopt. All relevant government departments should formulate corresponding policies; establish a coordinated and efficient work system with rational structure and clear division of tasks and responsibilities within the system. Implementation and development of “integrated medicine” in system is necessary. Work norms and requirements will then improve the performance and efficiency in chronic disease prevention and control in China.

Keywords： chronic disease prevention and control     strategy and system construction    

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Title Author Date Type Operation

Traces and echoes of <i>De Architecturai> by Marcus Vitruvius Pollio in the work of Xu Guangqi in 17th

Michela CIGOLA,Yibing FANG

Journal Article

Low-k integration: Gas screening for cryogenic etching and plasma damage mitigation

Lefaucheux, Christian Dussarrat, Jean François de Marneffe

Journal Article

Effects of SO

Quanming Liang, Jian Li, Hong He, Wenjun Liang, Tiejun Zhang, Xing Fan

Journal Article

Torsional behavior of triangular web profile (TRIWP) steel section by experimental study

Fatimah DE’NAN,Hazwani HASAN,Mohd Hanim OSMAN,Sariffudin SAAD

Journal Article

Real drive cycles analysis by ordered power methodology applied to fuel consumption, CO

Antonia de los Santos López, Jesús Álvarez-Flórez

Journal Article

Opportunities and Challenges in Deep Mining: A Brief Review

De Silva,Tharaka D. Rathnaweera,Adheesha K. M. S. Bandara

Journal Article

How did Archimedes discover the law of buoyancy by experiment?

Hidetaka KUROKI

Journal Article

Nanoscale cryptographic architecture design using quantum-dot cellular automata

Bikash Debnath, Jadav Chandra Das, Debashis De,dr.debashis.de@gmail.com

Journal Article

Research on Microelectromagnetic Relays

LI De-sheng, LIU Ben-dong

Journal Article

Crop residues: applications of lignocellulosic biomass in the context of a biorefinery

Maria Carolina ANDRADE, Caio de Oliveira GORGULHO SILVA, Leonora Rios de SOUZA MOREIRA, Edivaldo Ximenes

Journal Article

LAND-USE INTENSIFICATION TRENDS IN THE RIO DE LA PLATA REGION OF SOUTH AMERICA: TOWARD SPECIALIZATION

Paulo César DE FACCIO CARVALHO, Jean Víctor SAVIAN, Tomas DELLA CHIESA, William DE SOUZA FILHO, José, Priscila PINTO, Amanda POSSELT MARTINS, Sebastian VILLARINO, Júlio Kuhn DA TRINDADE, Pedro Arthur DE

Journal Article

Josse De Baerdemaeker: Challenges and Outlook for Developing Robots for Horticulture（2019-10-18）

Josse De Baerdemaeker(高级职称)

20 Jan 2021

Conference Videos

Mature

Giorgia De Guido, Matteo Compagnoni, Laura A. Pellegrini, Ilenia Rossetti

Journal Article

Environmental problems of vibrations induced by railway traffic

XIA He, CAO Yanmei, De Roeck Guido, Degrande Geert

Journal Article

Exploration of Strategies for Chronic Disease Prevention and Control and Relevant System Development in China

Long-de Wang

Journal Article