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pressure vessel technology 2

total double layered 2

3-D numerical simulation 1

α-helical polypeptide 1

CFD 1

Characteristic 1

artificial bacterial flagella (ABFs) 1

biomedical applications 1

burst arrested and burst resistance 1

burst arrested and resisted 1

compound thin inner shell 1

computational 1

computed tomography angiography 1

computed tomography perfusion 1

convective heat transfer 1

corresponding 1

crack-arrest toughness 1

cross-helical wound 1

cylindrical cavity receiver 1

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Convective heat transfer in helical coils for constant-property and variable-property flows with high

Yufei MAO, Liejin GUO, Bofeng BAI, Ximin ZHANG

Frontiers in Energy 2010, Volume 4, Issue 4, Pages 546-552 doi: 10.1007/s11708-010-0116-8

Abstract: Forced convection heat transfer of single-phase water in helical coils was experimentally studied.The contribution of secondary flow in the helical coil to heat transfer was gradually suppressed withHence, heat transfer coefficients of the helical tube were close to those of the straight tube underdata, heat transfer correlations for both incompressible flows and supercritical fluid flows through helicalcoils were proposed.

Keywords： convective heat transfer helical coils high Reynolds number supercritical pressure variable property

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Closed surface modeling with helical line measurement data

LI Ruqiong, LI Guangbu, WANG Yuhan

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 1, Pages 72-76 doi: 10.1007/s11465-007-0012-z

Abstract: It includes three steps: first, the cloud data are preprocessed for smoothing; second, a helical line

Keywords： free-form surface helical triangle design/computer-aided manufacturing effective

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Characteristics of flow and heat transfer of shell-and-tube heat exchangers with overlapped helical baffles

Tingting DU, Wenjing DU

Frontiers of Engineering Management 2019, Volume 6, Issue 1, Pages 70-77 doi: 10.1007/s42524-019-0005-8

Abstract:

The characteristics of flow and heat transfer of shell-and-tube heat exchangers with overlapped helicalThe ideal helical flow model was constructed to demonstrate parts of the flow characteristics of theThe numerical simulation was adopted to describe the characteristics of helical, leakage, and bypassThis study shows the detailed features of helical flow in STHXsHB, which can inspire a reasonable optimization

Keywords： heat exchanger overlapped helical baffle triangular zone helical flow

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CFD simulation on shell-and-tube heat exchangers with small-angle helical baffles

Minhua ZHANG,Fang MENG,Zhongfeng GENG

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 2, Pages 183-193 doi: 10.1007/s11705-015-1510-x

Abstract: Shell-and-tube heat exchanger with helical baffles is superior to that with segmental baffles in reducingThis paper focused on the small-angle helical baffles that have been merely reported in open literatureThese baffles are noncontinuous helical baffles with a helix angle of 10° to 30°, and their shapes areAt = 10° and 20°, 1/4 sector helical baffle heat exchangers show the best integrative performance;at = 30°, 1/4 ellipse and 1/4 sector helical baffle heat exchangers perform almost the same.

Keywords： heat transfer pressure drop helical baffle CFD

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Cutting Force Model for a Small-diameter Helical Milling Cutter

LI Xiwen, YANG Shuzi, YANG Mingjin, XIE Shouyong

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3, Pages 272-277 doi: 10.1007/s11465-007-0047-1

Abstract: The cutting force model for the helical milling cutter is validated by experiments.theoretical foundation for monitoring the condition of a milling process that uses a small-diameter helical

Keywords： computational corresponding helical milling theoretical foundation Characteristic

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Geometric optimization model for the solar cavity receiver with helical pipe at different solar radiation

Chongzhe ZOU, Huayi FENG, Yanping ZHANG, Quentin FALCOZ, Cheng ZHANG, Wei GAO

Frontiers in Energy 2019, Volume 13, Issue 2, Pages 284-295 doi: 10.1007/s11708-019-0613-3

Abstract: In the model of a cylindrical cavity receiver containing a helical pipe, the heat losses of the cavity

Keywords： cylindrical cavity receiver 3-D numerical simulation geometric optimization direct normal irradiation

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Simultaneous acquisition of CT angiography and whole brain CT perfusion images by using multiphase dynamic helical

Weiwei CHEN, Jianpin QI, Wenzhen ZHU, Wenhua HUANG, Jinmei SONG

Frontiers of Medicine 2009, Volume 3, Issue 2, Pages 230-235 doi: 10.1007/s11684-009-0023-8

Abstract: We implemented a new protocol — multiphase dynamic helical scan to acquire CT angiography (CTA) and whole

Keywords： computed tomography angiography computed tomography perfusion

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Gene delivery into isolated

Nan Zheng, Ziyuan Song, Yang Liu, Lichen Yin, Jianjun Cheng

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 4, Pages 521-528 doi: 10.1007/s11705-017-1612-8

Abstract: In this study, we developed the cationic, -helical polypeptide that can effectively deliver DNA intoThis study therefore widens the utilities of helical polypeptide as a unique category of gene delivery

Keywords： α-helical polypeptide plant gene delivery protoplast intact leaves transfection

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Magnetic Helical Micro- and Nanorobots: Toward Their Biomedical Applications Review

Famin Qiu, Bradley J. Nelson

Engineering 2015, Volume 1, Issue 1, Pages 21-26 doi: 10.15302/J-ENG-2015005

Abstract:

Magnetic helical micro- and nanorobots can perform 3D navigation in various liquids with a sub-micrometerSince magnetic fields with low strengths are harmless to cells and tissues, magnetic helical micro/nanorobotsThis review provides general information on magnetic helical micro/nanorobots, including their fabrication

Keywords： magnetic helical micro/nanorobots mobile micro/nanorobots artificial bacterial flagella (ABFs) functionalization

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Future Development Analysis of Chinese Burst Resistant Steel-Composites Structural Pressure Vessel Technology

Zhu Guohui

Strategic Study of CAE 2000, Volume 2, Issue 6, Pages 8-11

Abstract:

Pressure vessel technology is an important engineering scientific technology used widely in various industrial and high technologic fields.

The so-called high technologic pressured equipment includes large pressure storage tanks, ammonia synthetic reactors, urea synthetic reactors, petroleum hydrogenation reactors, large rocket shells, liquid hydrogen and oxygen pressure vessels, nuclear power station pressure vessels and so on.

“Filament-Composites structural pressure vessel technology” and “General-Steel structural pressure vessel technology” are the two main sorts of the contemporary pressure vessel technology in the world.A unique sort named “Steel-Composites structural pressure vessel technology” with several unique structural technologic system from low to high pressure application field, which has included China National Invention Prize and 18 Chinese and US patents in its system has been developed in China mainly by the author during past 30 years. This unique sort of pressure vessel technology has the excellent burst resistant and manufacturing cost reduced up to 40% etc. outstanding structural technologic characteristics. This will lead a radical reformation of pressure vessel technology in the world.

A typical technology of this unique sort named “flat steel ribbon cross-helically wound pressure vessel technology” used widely in China during past 30 years has involved officially in the ASME BPV Code as code number 2229 and 2269 for Section Ⅷ , Division 1 and 2 in 1997 respectively for manufacturing various important large industrial pressured equipment in the world with internal diameter up to 3.66 m by American Society of Mechanical Engineers as the first instance of significant technology from China.

The unique pressure vessel technology was assessed an advanced high technology in the world. This will surely open a new development prospect in designing, manufacturing and safe protective technical aspects of the 21 st century by using the special Steel-Composites structural technologic nature.

Keywords： technology filament-composites structure steel-composites structure compound thin inner shell cross-helical

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Steel Compoisite Structural Pressure Vessel Technology

Zhu Guohui,Zhu Li,Zheng Jinyang,Zheng Chuanxiang,Chen Zhiping,Wu Hongmei

Strategic Study of CAE 2001, Volume 3, Issue 7, Pages 79-84

Abstract:

A Unique idea of an advanced Multi - Functional Shell and Long Period Developing Radical Requirement for engineering design and manufacture of pressure vessels is proposed in this paper. The “Steel Composite Structural Pressure Vessel Technology” (SCSPVT) invented by the authors is a unique pressure vessel technology in the world with a wide application area, including low, medium and high internal pressure fields. The main characteristics of the multi - functional shell burst arrested and resisted, manufacture simplified, defects dispersed and economical and reliable on-line status automatic monitoring, etc. The manufacture cost using this unique pressure vessel technology can be reduced by 30% to 50% . Four patented technological development systems comprised in this said unique Steel Composites Structural Pressure Vessel Technology are interoduced and summarized briefly in this paper.

Keywords： pressure vessel technology steel composites structure multi-function shell steel ribbon cross-helical

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High grade line pipe and high pressure transportation: significant progress of oil & gas transportation pipeline technology in China

Li Helin,Ji Lingkang,Tian Wei

Strategic Study of CAE 2010, Volume 12, Issue 5, Pages 84-90

Abstract: X70 and X80 grade pipeline steel, welded pipe, and fitting, breakthrough of the application limit of helicalsubmerge-arc welded pipe, establishment of the technical route for alternative application of helical

Keywords： oil & gas pipeline grade pipeline steel helical submerge-arc welded pipe crack-arrest toughness strain-based