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New developments in mobile air conditioning systems in China

Jiangping CHEN, Yu ZHAO, Zhaogang QI

Frontiers in Energy 2011, Volume 5, Issue 1, Pages 53-58 doi: 10.1007/s11708-010-0137-3

Abstract: In this paper, the development of the MAC system and components for new energy vehicles, low global warmingpotential (GWP) refrigerants, methods to control refrigerant leakage, and new energy-saving technologies

Keywords： global warming potential mobile air conditioning (MAC) energy saving new developments

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New Developments in the Calorimetry of High-Temperature Materials

Alexandra Navrotsky

Engineering 2019, Volume 5, Issue 3, Pages 366-371 doi: 10.1016/j.eng.2019.03.003

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Civil and structural engineering applications, recent trends, research and developments on pultruded

Alfred Kofi GAND, Tak-Ming CHAN, James Toby MOTTRAM

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 3, Pages 227-244 doi: 10.1007/s11709-013-0216-8

Abstract: The objectives of this study are to review and evaluate the developments and applications of pultrudedfiber-reinforced polymer composites in civil and structural engineering and review advances in research and developments

Keywords： tubular sections pultruded FRP tubular profiles FRP tubes in bridges applications of pultruded FRP tubes new-build

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SMRs – overview, international developments, safety features and the GRS simulation chain

Frontiers in Energy 2021, Volume 15, Issue 4, Pages 793-809 doi: 10.1007/s11708-021-0751-2

Abstract: dealing with small modular reactors (SMRs) for about one decade since SMRs are one interesting option for newIn this paper, definitions, history, and current developments of SMRs are presented.

Keywords： small modular reactors (SMRs) history recent developments safety aspects simulation chain of the

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Modern developments related to nanotechnology and nanoengineering of concrete

Konstantin SOBOLEV

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 2, Pages 131-141 doi: 10.1007/s11709-016-0343-0

Abstract: This paper reports on modern developments related to nanotechnology of cement and concrete.New technological directions and historical milestones in nanoengineering and nanomodi?

Keywords： nanotechnology cement concrete nanoparticle nano-composite nanomodification carbon nanotubes C-S-H gel photocatalyst

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Recent developments in passive interconnected vehicle suspension

Wade A. SMITH, Nong ZHANG,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1, Pages 1-18 doi: 10.1007/s11465-009-0092-z

Abstract: This paper presents an overall review on the historical concept development and research advancement of passive hydraulically interconnected suspension (HIS) systems. It starts with an introduction to passive HIS systems and their various incarnations developed over many decades. Next, a description is provided of a recently proposed multidisciplinary approach for the frequency-domain analysis of vehicles fitted with an HIS. The experimental validation and applications of the method to both free and forced vibration analysis are discussed based on a simplified, roll-plane half-car model. A finite-element-method-based approddach for modelling the transient dynamics of an HIS vehicle is also briefly outlined. In addition, recent work on the investigation of NVH associated with HIS-equipped vehicles is mentioned. Discussion is then provided on future work to the further understanding of HIS and its applications. The paper concludes that interconnected suspension schemes can provide much greater flexibility to independently specify modal stiffness and damping parameters – a characteristic unique among passive suspensions. It points out that there is a need for system optimisation, and there are troublesome NVH issues that require solutions. It suggests that further research attention and effort be paid to NVH issues and system level optimisation to gain a greater understanding of HIS and to broaden its applications.

Keywords： interconnected suspensions rollover prevention vehicle dynamics ride comfort multibody system dynamics hydraulic system dynamics

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Review of recent developments in cement composites reinforced with fibers and nanomaterials

Jianzhuang XIAO, Nv HAN, Yan LI, Zhongsen ZHANG, Surendra P. SHAH

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1, Pages 1-19 doi: 10.1007/s11709-021-0723-y

Abstract: The quest for high-performance construction materials is led by the development and application of newNowadays, many new fibers associated with high performance and possessing eco-environmental characteristics

Keywords： cement composites fiber nanomaterial mechanical property durability

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Recent developments in the application of oil palm fibers in cement composites

Emmanuel Owoichoechi MOMOH, Adelaja Israel OSOFERO

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1, Pages 94-108 doi: 10.1007/s11709-019-0576-9

Abstract: Fibers obtained from different parts of the oil palm tree (Elaeis guineensis) have been under investigation for possible use in construction. Studies have been carried out investigating the engineering properties and possible applications of these fibers. However, the experimental methods employed and the values of mechanical and physical properties recorded by various authors are inconsistent. It has therefore become necessary to organize information which would be useful in the design of oil palm fiber cement composites and help researchers and engineers make informed decisions in further research and application. This review provides information about fibers from different parts of the oil palm, their properties, enhancement techniques, current and potential application in cement composites.

Keywords： broom cement composite concrete oil palm fiber Natural fiber-concrete sustainability

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Model-based nonlinear control of hydraulic servo systems: Challenges, developments and perspectives

Jianyong YAO

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 2, Pages 179-210 doi: 10.1007/s11465-018-0464-3

Abstract: In this paper, a discussion for challenges in model-based nonlinear control, latest developments and

Keywords： hydraulic servo system adaptive control robust control nonlinear friction disturbance compensation repetitive control noise alleviation constraint control

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Ancient road transport devices: Developments from the Bronze Age to the Roman Empire

Cesare ROSSI,Thomas G. CHONDROS,Kypros F. MILIDONIS,Sergio SAVINO,Flavio RUSSO

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1, Pages 12-25 doi: 10.1007/s11465-015-0358-6

Abstract:

The development of transportation systems has significantly enhanced the welfare and modernization of society. Wooden vehicles pulled by animals have been used for land transportation since the early Bronze Age. Whole-body gharries with rigid wheels pulled by oxen appeared in Crete by 2000 BC or earlier. Horses originating from the East were depicted in early Cretan seal-rings of the same period. The two-wheeled horse-drawn chariot was one of the most important inventions in history. This vehicle provided humanity its first concept of personal transport and was the key technology of war for 2000 years. Chariots of Mycenaean and Archaic Greece with light and flexible four-spoked wheels acting as spring suspensions were depicted in vase paintings. The development of this vehicle incorporated the seeds of a primitive design activity and was important for engineering. The Trojan horse since 1194 BC and the helepolis since 700 BC were the first known machines on a wheeled base transported by horses or self-powered. Ancient engineers invented bearings lubricated with fat, and Romans introduced the ancestors of ball bearings for their wagons and carts. The historic evolution of wheeled transportation systems, along with early traction, suspension, and braking systems, is presented in this paper. Analytical and numerical methods are incorporated to analyze the most conceivable loading situations of typically reconstructed wheeled transportation systems in ancient times. Traction requirements both for horse-driven machines and the power for internal motors are also analyzed. This study can serve as a basis for further development of detailed reconstruction of transportation systems in antiquity.

Keywords： transportation wheel spoke cart axle bearing

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Developments in cancer prevention and treatment using traditional Chinese medicine

Hongsheng Lin, Jie Liu, Ying Zhang

Frontiers of Medicine 2011, Volume 5, Issue 2, Pages 127-133 doi: 10.1007/s11684-011-0137-7

Abstract: This article reviews the developments of TCM in the treatment of cancer.

Keywords： traditional Chinese medicine (TCM) cancer

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modification techniques of membranes to improve their antifouling characteristics: recent advancements and developments

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12, Pages 1837-1865 doi: 10.1007/s11705-023-2347-3

Abstract: modification techniques of membranes to improve their antifouling characteristics: recent advancements and developments

Keywords： Surface modification techniques

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A Trio of Commercial Aircraft Developments in China Views & Comments

Guanghui Wu

Engineering 2021, Volume 7, Issue 4, Pages 424-426 doi: 10.1016/j.eng.2020.07.033

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Developments in semiconductor thermoelectric materials

Laifeng LI, Zhen CHEN, Min ZHOU, Rongjin HUANG

Frontiers in Energy 2011, Volume 5, Issue 2, Pages 125-136 doi: 10.1007/s11708-011-0150-1

Abstract: The objectives of this paper are to introduce the recent developments in semiconductor thermoelectric

Keywords： thermoelectric materials thermoelectric figure of merit applications

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A review on membrane distillation in process engineering: design and exergy equations, materials and wetting problems

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 5, Pages 592-613 doi: 10.1007/s11705-021-2105-3

Abstract: New perspectives have enhanced research activities and allowed a deeper understanding of mass and heatThis work summarizes recent developments in the field of membrane distillation, studies for module length

Keywords： membrane distillation recent developments heat and mass transfer wetting membrane material