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Jian Wang, Yuan-gui Tang, Chuan-xu Chen, Ji-xu Li, Cong Chen, Ai-qun Zhang, Yi-ping Li, Shuo Li,wangjian3@sia.cn,tyg@sia.cn,chencx@idsse.ac.cn
Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 5, Pages 649-808 doi: 10.1631/FITEE.1900556
Keywords： 自主遥控水下机器人；全海深；挑战者深渊；马里亚纳海沟；地形轮廓匹配
Tan Zhe,Gao Congjie
Strategic Study of CAE 2014, Volume 16, Issue 7, Pages 17-22
Herein, we report a new concept, constricted interfacial polymerization to study the formation of polyamide thin film composite membranes. Delayed diffusion of protected polyfunctional amine reacts with acyl chloride to produce a transition surface structure. Hydrophilic macromolecules and amphiphilic template induced interfacial polymerization reacted in a limited zone, the aggregation state of polymer chains transform from a random state to a regular stateand membrane permeability increases without a loss of salt rejection. Zeolite nanoparticles dispersed in RO composite membrane changed film morphology and water permeability is increased nearly 50% with equivalent salt rejection.
Keywords： constricted interfacialpolymerization reverse osmosis nanofiltration surface morphology separation performance
Adsorption kinetics and rejection characteristics of phthalic acid esters in NF membrane
Jin Ye,Wu Liguang,Zhang Lin
Strategic Study of CAE 2014, Volume 16, Issue 7, Pages 36-41
The removal of trace phthalic acid esters (PAEs) in water used DK nanofiltration membrane has been investigated. The adsorption behavior and rejection characteristics of dimethyl phthalate (DMP)、 diethyl phthalate (DEP)、di-n-butyl phthalate (DnBP) and di-iso-butyl phthalate (DiBP) were also explored. It was found that adsorption isotherms of PAEs in DK nanofiltration membrane fit the Freundlich adsorption equation well. The rejection characteristics of PAEs involved in the retention of adsorption and the retention of membrane pore before adsorption reaches saturation. After adsorption reaches saturation, the rejection mechanisms of PAEs could be described pore model,and rejection rate (R) of DMP、DEP、DnBP and DiBP were 55.1%、78%、96%、96.8% (0.5MPa,30℃,PAEs concentration 300μg/L), respectively. The results indicated that the trace DnBP 、DiBP in water could been rejected very effectively by DK nanofiltration membrane.
Keywords： Phthalic acid esters Nanofiltration Adsorption Rejection
Design, development, and performance of an ammonia self-managed vaporization propulsion system for micro-nano satellites Regular Article
Shu-jian Sun, Tao Meng, Zhong-he Jin,sunshujian@zju.edu.cn,mengtao@zju.edu.cn
Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 11, Pages 1516-1529 doi: 10.1631/FITEE.1800068
Keywords： 自主汽化管理；液氨；毫牛量级推进技术；微推力；高精度轨道控制；微纳卫星
Editorial for the Special Issue on Micro and Nano Manipulation and Characterization
Yu Sun, Sergej Fatikow, Xinyu Liu
Engineering 2023, Volume 24, Issue 5, Pages 1-2 doi: 10.1016/j.eng.2023.04.006
Preparation and application of thin film composite reverse osmosis and nanofiltration membranes
Zhang Qifeng,Li Shenghai, Wang Tunyu,Li Lei, Zhang Suobo
Strategic Study of CAE 2014, Volume 16, Issue 12, Pages 17-23
Reverse osmosis (RO) and nanofiltration (NF) separation are effective technologies， and have been used in many fields such as the desalination of seawater， ultrapure water production， wastewater treatment as well as water softening. Since the inherent chemistry of the monomers employed in the interfacial polymerization is believed to play a major role in determining the properties of the resulting TFC membranes， a deeper insight into the relationship between the properties of the membrane chemistry and the chemistry of functional monomers is necessary. In the present report， series of novel RO as well as NF membranes based on new type of polyacyl chloride monomers have been prepared. We systematically investigated the intrinsic relationship between the physicochemical properties， transport performance as well as anti-fouling properties of the resultant membranes and the chemistry the polycayl chloride monomers. The result reveal that， as the functionality of the acid chloride monomer increased， the resulting membrane skin layer became more negatively charged， thinner and smoother， and better antifouling ability. All the four membranes exhibited close salt rejection rates. Additionally， a novel positively charged thin film composite NF membrane was prepared utilizing the highly functional 2，2’，4，4’，6，’6-biphenyl hexaacyl chloride (BHAC) monomer. This NF membrane exhibits high efficiencies for many NF applications including rejection of divalent cations， removal of basic dyes and selective separation of mixed cations.
Keywords： RO membrane nanofiltration membrane biphenyl polyacyl chloride
Nikolay V. Sobolev, Anatoly A. Tomilenko, Taras A. Bul´bak, Alla M. Logvinova
Engineering 2019, Volume 5, Issue 3, Pages 471-478 doi: 10.1016/j.eng.2019.03.002
Volatile components in diamonds, associated garnet (pyrope), and olivine from two extremely rare xenoliths of diamondiferous peridotites recovered from the Udachnaya kimberlite pipe in Yakutia, Russia, were analyzed by gas chromatography–mass spectrometry (GC–MS) using a Focus DSQ II Series Single Quadrupole GC–MS (Thermo Scientific, USA). These xenoliths are pyrope lherzolite and pyrope dunite based upon compositions of coexisting minerals. Unlike the pyrope lherzolite, which contained pyrope with moderate calcium (Ca)-component content (about 15 mol%), the dunite contained subcalcic chromium (Cr)-pyrope with low Ca-component content (less than 10 mol%). All investigated minerals contained dominating hydrocarbons and their derivatives represented by aliphatic (paraffins, olefins), cyclic (naphthenes, arenes), oxygenated (alcohols, ethers), and heterocyclic (dioxanes, furans) hydrocarbons; nitrogenated, chlorinated, and sulfonated compounds; carbon dioxide (CO2); and water (H2O). The relative concentration (rel%) of total hydrocarbon was 79.7 rel% for diamonds, 69.1 rel% for garnet, and 92.6 rel% for olivine, with a general amount of components ranging from 161 to 206. New data on volatiles in diamonds, associated garnet, and olivine suggest the presence of a wide spectrum of hydrocarbons along with nitrogen (N2), CO2, and H2O in some upper mantle areas.
Keywords： Diamond Volatiles Hydrocarbons Pyrope Olivine Inclusions
Integrated process of nanofiltration for treating salty water during tide of Qiantang River
Bi Fei,Chen Xiaojie,Chen Shuichao,Chen Huanlin,Sun Zhilin
Strategic Study of CAE 2014, Volume 16, Issue 7, Pages 53-56
This study focused on preparing drinking water from the tidal salty water of Qiantang River by nanofiltration technology. Some commercial nanofiltration membranes were compared and the performance of optimized membrane was measured. A nanofiltration pilot-scale system with 500 m3/d was operated and optimized. The results showed that it was effective in removing the salt and reducing the organic pollutants from tidal water for nanofiltration technology, and nanofiltration could play an important role of security for drinking water.
Keywords： Qiantang River tidal salty water nanofiltration security of the drinking water
Micro － blind mesh thermal control study and simulation of nano-satellite
Yang Juan,Li Yunze,Wang Jun
Strategic Study of CAE 2008, Volume 10, Issue 7, Pages 169-172
The limits of nano-satellite's volume and quality may cause a high density in the cabin. Micro-blind mesh can resolve this problem properly. The intelligent control strategy of micro-blind mesh' s drive is the key technology. A dynamic characteristics model of the spherical nano-satellite was established.Based on the model,a fuzzy PI shunt-wound controller was designed. The simulation was carried on, in conditions of increasing and decreasing the equipments' heat dissipation. Results show that this new controller is superior to the fuzzy controller and PID controller in that the former works well with good control effect and high dynamic performance.
Keywords： nano-satellite micro-blind mesh fuzzy PI controller simulation
Subpixel image reconstruction and denoising based on complex wavelet
Zhang Zhi,Wei Zhihui,Xia Deshen
Strategic Study of CAE 2008, Volume 10, Issue 11, Pages 76-81
Composing superresolution of the remote sensing images can remedy the deficiency of the remote sensor. However, precision of the common interpolations are not high. The paper analyzes the subpixel theory of the remote sensing image and interpolates two images offsetting subpixel in order to reconstruct high resolution image. The algorithm of adaptive threshold wavelet denoising based inter-scale is used. Experiment results show this algorithm is better than common methods.
Keywords： subpixel complex wavelet adaptive threshold reconstruction denosing
Study on Ejection Escape Technology in Sub-plateau Regions
Su Bingjun,Dai Shuyin,Zhou Fang,Lin Guiping
Strategic Study of CAE 2007, Volume 9, Issue 6, Pages 38-42
This paper has analyzed deficiencies with the current aircrew escape system for sub-plateau regions and a proposal has been put forward that the ejection seat is to be equipped with a dual mode sequencer including mechanical and electrical sequencers, so as to ensure safe escape, under the condition that the current equipment configuration is kept unchanged, in sub-plateau regions and without reducing escape performance at low altitude under adverse attitude conditions in plain regions.
Keywords： sub-plateau ejection survival dual mode sequencer
Qi Wanpeng,Zhang Dehua,Yan Jingxiong,Shi Zhenyu
Strategic Study of CAE 2012, Volume 14, Issue 1, Pages 98-104
The geology of the region which Baojianshan tunnel crossed through was very complex. The layer was consisted of broken phyllite which was easily softened with water. The rock mass had collapsed several times while excavation by the construction methods which designers offered. In this article, the sub-classification of phyllite was established according to State Standard Classification of Rock and Designing Standard of Railway Tunnel. Based on this sub-classification, a series of construction methods in phyllite were set up eventually. And Baojiashan tunnel was successfully built using the construction methods mentioned above.
Keywords： tunnel construction phyllite sub classification soften water prosperities of rock
Fluorescence nanoscopy in neuroscience Review
Yangyundou Wang,Jian Lin,Qiming Zhang,Xi Chen,Haitao Luan,Min Gu
Engineering 2022, Volume 16, Issue 9, Pages 29-38 doi: 10.1016/j.eng.2020.11.010
Fluorescence nanoscopy provides imaging techniques that overcome the diffraction-limited resolution barrier in light microscopy, thereby opening up a new area of research in biomedical imaging in fields such as neuroscience. Here, we review the foremost fluorescence nanoscopy techniques, including descriptions of their applications in elucidating protein architectures and mobility, the real-time determination of synaptic parameters involved in neural processes, three-dimensional imaging, and the tracking of nanoscale neural activity. We conclude by discussing the prospects of fluorescence nanoscopy, with a particular focus on its deployment in combination with related techniques (e.g., machine learning) in neuroscience.
Keywords： Fluorescence imaging Diffraction limit Nanoscale resolution Neuroscience
The application of membrane separation technology in solving water security problem
Hou Li´an,Zhang Lin
Strategic Study of CAE 2014, Volume 16, Issue 7, Pages 4-9
During the past 20 years, membrane technology industry has achieved great development both in China and abroad, meanwhile, membrane technology plays an important role in solving water security problem. In this article, the development of membrane separation technology and its applications in deep treatment of drinking water, wastewater treatment, emergency water supplies and special wastewater treatment were summarized.
Keywords： water security membrane separation ultrafiltration nanofiltration reverse osmosis
Optical Microscopy Advances Reach Sub-Nanometer Resolution
Chris Palmer
Engineering 2023, Volume 31, Issue 12, Pages 11-14 doi: 10.1016/j.eng.2023.11.002
Title Author Date Type Operation
Terrain matching localization for hybrid underwater vehicle in the Challenger Deep of the Mariana Trench
Jian Wang, Yuan-gui Tang, Chuan-xu Chen, Ji-xu Li, Cong Chen, Ai-qun Zhang, Yi-ping Li, Shuo Li,wangjian3@sia.cn,tyg@sia.cn,chencx@idsse.ac.cn
Journal Article
InterfacialpolymerizationinconstrictedzonetoinducedReverse osmosisandnanofiltrationmembranes orientedsynthesis
Tan Zhe,Gao Congjie
Journal Article
Adsorption kinetics and rejection characteristics of phthalic acid esters in NF membrane
Jin Ye,Wu Liguang,Zhang Lin
Journal Article
Design, development, and performance of an ammonia self-managed vaporization propulsion system for micro-nano satellites
Shu-jian Sun, Tao Meng, Zhong-he Jin,sunshujian@zju.edu.cn,mengtao@zju.edu.cn
Journal Article
Editorial for the Special Issue on Micro and Nano Manipulation and Characterization
Yu Sun, Sergej Fatikow, Xinyu Liu
Journal Article
Preparation and application of thin film composite reverse osmosis and nanofiltration membranes
Zhang Qifeng,Li Shenghai, Wang Tunyu,Li Lei, Zhang Suobo
Journal Article
Composition of Hydrocarbons in Diamonds, Garnet, and Olivine from Diamondiferous Peridotites from the Udachnaya Pipe in Yakutia, Russia
Nikolay V. Sobolev, Anatoly A. Tomilenko, Taras A. Bul´bak, Alla M. Logvinova
Journal Article
Integrated process of nanofiltration for treating salty water during tide of Qiantang River
Bi Fei,Chen Xiaojie,Chen Shuichao,Chen Huanlin,Sun Zhilin
Journal Article
Micro － blind mesh thermal control study and simulation of nano-satellite
Yang Juan,Li Yunze,Wang Jun
Journal Article
Subpixel image reconstruction and denoising based on complex wavelet
Zhang Zhi,Wei Zhihui,Xia Deshen
Journal Article
Study on Ejection Escape Technology in Sub-plateau Regions
Su Bingjun,Dai Shuyin,Zhou Fang,Lin Guiping
Journal Article
Research on supporting methods and sub classification of complex phyllite rock layer in Baojiashan tunnel
Qi Wanpeng,Zhang Dehua,Yan Jingxiong,Shi Zhenyu
Journal Article
Fluorescence nanoscopy in neuroscience
Yangyundou Wang,Jian Lin,Qiming Zhang,Xi Chen,Haitao Luan,Min Gu
Journal Article
The application of membrane separation technology in solving water security problem
Hou Li´an,Zhang Lin
Journal Article
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