检索范围:
排序: 展示方式:
A low-density polyethylene composite with phosphorus-nitrogen based flame retardant and multi-walled
Yong Luo, Yuhui Xie, Renjie Chen, Ruizhi Zheng, Hua Wu, Xinxin Sheng, Delong Xie, Yi Mei
《化学科学与工程前沿(英文)》 2021年 第15卷 第5期 页码 1332-1345 doi: 10.1007/s11705-021-2035-0
关键词: MWCNTs PEPA electrical conductivity flame retardant low density polyethylene
Da LEI,Xuehong LI,Yun LI,Xiwen REN
《能源前沿(英文)》 2019年 第13卷 第1期 页码 107-113 doi: 10.1007/s11708-017-0450-1
关键词: interference fit value packing cup hypercompressor finite element method (FEM)
LI Jianxiong, LIU Zilong, DUAN Yonggang, YU Jing, ZHU Changhong, LI Shuang, XIE Changsheng
《医学前沿(英文)》 2007年 第1卷 第4期 页码 401-404 doi: 10.1007/s11684-007-0078-3
关键词: significant difference female endometrial angiogenesis nano-Cu/LDPE CD34
《环境科学与工程前沿(英文)》 2023年 第17卷 第1期 doi: 10.1007/s11783-023-1606-3
● Reducting the sampling frequency can enhance the modelling process.
关键词: HDPE Pyrolysis Kinetics Thermogravimetric ANOVA Artificial neural network
An improved low-complexity sum-product decoding algorithm for low-density parity-check codes
Michaelraj Kingston ROBERTS,Ramesh JAYABALAN
《信息与电子工程前沿(英文)》 2015年 第16卷 第6期 页码 511-518 doi: 10.1631/FITEE.1400269
关键词: Computational complexity Coding gain Fast Fourier transform (FFT) Low-density parity-check (LDPC) codes Sum-product algorithm (SPA)
《环境科学与工程前沿(英文)》 2021年 第15卷 第5期 doi: 10.1007/s11783-020-1375-1
• AOA’s ammonia oxidizing capacity was enhanced under moderate magnetic field.
关键词: Ammonia-oxidizing archaeon Ammonia oxidation Magnetic field Magnetotaxis Heredity
Conversion of polyethylene to gasoline: Influence of porosity and acidity of zeolites
《能源前沿(英文)》 页码 763-774 doi: 10.1007/s11708-023-0897-1
关键词: plastics conversion polyethylene zeolites acidity porosity
Gas phase ethylene polymerization over SiO
Liuzhong LI, Aiyou HAO, Ruihua CHENG, Boping LIU
《化学科学与工程前沿(英文)》 2011年 第5卷 第1期 页码 89-95 doi: 10.1007/s11705-010-0558-x
关键词: UCC S-2 catalyst Al-alkyl co-catalyst gas-phase ethylene polymerization high density polyethylene
王璇,冀星,李术元
《中国工程科学》 2001年 第3卷 第12期 页码 90-95
废旧塑料的回收利用是近年来治理环境污染的一个重要课题。废聚乙烯(PE)在塑料垃圾中占有很大的比例,如何对其进行合理的回收、利用已成为人们十分关心的问题。从理论和经济两方面分析了废聚乙烯裂解制取聚乙烯蜡技术的可行性,介绍了聚乙烯蜡的性能及市场情况,分析比较了几种有代表性的制蜡工艺,综合评价了这些工艺技术的应用范围和优缺点。还简要介绍了红外脱油技术,并对该技术的研究和应用方向提出了一些建议。
Investigating peak stresses in fitting and repair patches of buried polyethylene gas pipes
Reza KHADEMI ZAHEDI, Pouyan ALIMOURI, Hooman KHADEMI ZAHEDI, Mohammad SHISHESAZ
《结构与土木工程前沿(英文)》 2020年 第14卷 第1期 页码 147-168 doi: 10.1007/s11709-019-0587-6
关键词: Ansys software polyethylene buried pipelines polyethylene joints polyethylene patches peak von Mises stress soil-pipe interaction temperature variation
Improving retrieval precision of NO
Jinpeng YANG
《机械工程前沿(英文)》 2009年 第4卷 第1期 页码 92-96 doi: 10.1007/s11465-009-0001-5
关键词: absorption structure low-frequency structure absorption cross-section NO2 density
Ehsan Salehi, Fereshteh Soroush, Maryam Momeni, Aboulfazl Barati, Ali Khakpour
《化学科学与工程前沿(英文)》 2017年 第11卷 第4期 页码 575-585 doi: 10.1007/s11705-017-1650-2
关键词: carbon biocomposites impregnation chitosan polyethylene glycol image processing
Performance of inverse fluidized bed bioreactor in treating starch wastewater
M. RAJASIMMAN, C. KARTHIKEYAN
《化学科学与工程前沿(英文)》 2009年 第3卷 第3期 页码 235-239 doi: 10.1007/s11705-009-0020-0
关键词: inverse fluidization low-density particles polypropylene starch biofilm
RUN Mingtao, SONG Hongzan, WANG Yingjin, YAO Chenguang, GAO Jungang
《化学科学与工程前沿(英文)》 2007年 第1卷 第3期 页码 238-245 doi: 10.1007/s11705-007-0043-3
关键词: /metallocene polyethylene presence rheological phenomena trimethylene terephthalate
A review of nondestructive examination technology for polyethylene pipe in nuclear power plant
Jinyang ZHENG, Yue ZHANG, Dongsheng HOU, Yinkang QIN, Weican GUO, Chuck ZHANG, Jianfeng SHI
《机械工程前沿(英文)》 2018年 第13卷 第4期 页码 535-545 doi: 10.1007/s11465-018-0515-9
Polyethylene (PE) pipe, particularly high-density polyethylene (HDPE) pipe, has been successfully utilized to transport cooling water for both non-safety- and safety-related applications in nuclear power plant (NPP). Though ASME Code Case N755, which is the first code case related to NPP HDPE pipe, requires a thorough nondestructive examination (NDE) of HDPE joints. However, no executable regulations presently exist because of the lack of a feasible NDE technique for HDPE pipe in NPP. This work presents a review of current developments in NDE technology for both HDPE pipe in NPP with a diameter of less than 400 mm and that of a larger size. For the former category, phased array ultrasonic technique is proven effective for inspecting typical defects in HDPE pipe, and is thus used in Chinese national standards GB/T 29460 and GB/T 29461. A defect-recognition technique is developed based on pattern recognition, and a safety assessment principle is summa-rized from the database of destructive testing. On the other hand, recent research and practical studies reveal that in current ultrasonic-inspection technology, the absence of effective ultrasonic inspection for large size was lack of consideration of the viscoelasticity effect of PE on acoustic wave propagation in current ultrasonic inspection techno-logy. Furthermore, main technical problems were analyzed in the paper to achieve an effective ultrasonic test method in accordance to the safety and efficiency requirements of related regulations and standards. Finally, the development trend and challenges of NDE test technology for HDPE in NPP are discussed.
关键词: polyethylene pipe nuclear power plant ultrasonic inspection nondestructive testing safety assessment
标题 作者 时间 类型 操作
A low-density polyethylene composite with phosphorus-nitrogen based flame retardant and multi-walled
Yong Luo, Yuhui Xie, Renjie Chen, Ruizhi Zheng, Hua Wu, Xinxin Sheng, Delong Xie, Yi Mei
期刊论文
Design of packing cup interference fit value of hypercompressors for low density polyethylene production
Da LEI,Xuehong LI,Yun LI,Xiwen REN
期刊论文
Correlative investigation of copper/low-density polyethylene nanocomposite on the endometrial angiogenesis
LI Jianxiong, LIU Zilong, DUAN Yonggang, YU Jing, ZHU Changhong, LI Shuang, XIE Changsheng
期刊论文
Prediction of high-density polyethylene pyrolysis using kinetic parameters based on thermogravimetric
期刊论文
An improved low-complexity sum-product decoding algorithm for low-density parity-check codes
Michaelraj Kingston ROBERTS,Ramesh JAYABALAN
期刊论文
the ammonia oxidation capacity of ammonia-oxidizing archaeon originated from wastewater: Utilizing low-density
期刊论文
Investigating peak stresses in fitting and repair patches of buried polyethylene gas pipes
Reza KHADEMI ZAHEDI, Pouyan ALIMOURI, Hooman KHADEMI ZAHEDI, Mohammad SHISHESAZ
期刊论文
Chitosan/polyethylene glycol impregnated activated carbons: Synthesis, characterization and adsorption
Ehsan Salehi, Fereshteh Soroush, Maryam Momeni, Aboulfazl Barati, Ali Khakpour
期刊论文
Performance of inverse fluidized bed bioreactor in treating starch wastewater
M. RAJASIMMAN, C. KARTHIKEYAN
期刊论文
terephthalate)/ethylene propylene diene monomer copolymer grafted with maleic anhydride/metallocene polyethylene
RUN Mingtao, SONG Hongzan, WANG Yingjin, YAO Chenguang, GAO Jungang
期刊论文