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Development of lunar regolith-based composite for - 3D printing via high-pressure extrusion system

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0745-8

Abstract: To fully utilize the in-situi> resources on the moon to facilitate the establishment of a lunarini>-situi> construction.However, the ini>-situi> 3D printing using raw lunar regolith consumes extremely high energyini>-situi> resources of lunar regolith.ini>-situi> manufacturing.

Keywords： ini>-situi> resource utilization melt extrusion molding lunar regolith-based composites

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LivestockWaste 2016-i>International Conference on Recent Advances in Pollution Control and ResourceRecovery for the Livestock Sectori>

Xinmin Zhan, Liwen Xiao

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0958-y

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Aerosol exposure assessment during reclaimed water utilization in China and risk evaluation in case of

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1516-1

Abstract:

• The Chinese population exposure habits were surveyed.

Keywords： Legionellai> QMRA Reclaimed water Aerosol Water reuse

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End-use energy utilization efficiency of Nigerian residential sector

Fidelis I. ABAM,Olayinka S. OHUNAKIN,Bethrand N. NWANKWOJIKE,Ekwe B. EKWE

Frontiers in Energy 2014, Volume 8, Issue 3, Pages 322-334 doi: 10.1007/s11708-014-0329-3

Abstract: Electricity utilization exergy efficiency is affected by vapor-compression air conditioning application

Keywords： end-use energy exergy efficiency residential sector Nigeria

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Novel perspective for urban water resource management:

Lijie Zhou, Hongwu Wang, Zhiqiang Zhang, Jian Zhang, Hongbin Chen, Xuejun Bi, Xiaohu Dai, Siqing Xia, Lisa Alvarez-Cohen, Bruce E. Rittmann

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1308-z

Abstract: Abstract • 5R (Recover, Reduce, Recycle, Resource and Reuse) approaches to manage urban water. • 5Rurban water resources: Recover (storm water), Reduce (toilet flushing water), Recycle (gray water), Resource

Keywords： 5Ri> generation Recover Reduce Recycle Resource Reuse

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Spin polarization strategy to deploy proton resource over atomic-level metal sites for highly selective

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12, Pages 1772-1781 doi: 10.1007/s11705-022-2197-4

Abstract: inert C=O bond during electrochemical CO₂ reduction demands subtle regulation on a key “resourcemagnetic-proximity-induced exchange splitting (spin polarization) that properly adjusts energy levels of the Fe sites’ di>-shells, and further those of the adsorbed intermediates’ antibonding molecular orbitals.

Keywords： CO₂ electrolysis single-atom catalysts spin polarization proton dynamics in situi

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Theoretical and technological exploration of deep

Heping XIE, Yang JU, Shihua REN, Feng GAO, Jianzhong LIU, Yan ZHU

Frontiers in Energy 2019, Volume 13, Issue 4, Pages 603-611 doi: 10.1007/s11708-019-0643-x

Abstract: Mining industries worldwide have inevitably resorted to exploiting resources from the deep underground. However, traditional mining methods can cause various problems, e.g., considerable mining difficulty, environmental degradations, and frequent disastrous accidents. To exploit deep resources in the future, the concept of mining must be reconsidered and innovative new theories, methods, and technologies must be applied. To effectively acquire coal resources deeper than 2000 m, new theoretical and technological concepts about deep fluidized mining are required. The limits of mining depth need to be broken to acquire deep-coal resources in an environmentally friendly, safe, and efficient manner. This is characterized by ‘There are no coal on the ground and no men in the coal mine’. First, this paper systematically explains deep fluidized coal mining. Then, it presents a new theoretical concept, including the theories of mining-induced rock mechanics, three-field visualization, multi-physics coupling for transformation, and mining, transformation and transport. It also presents key technological concepts, including those of intelligent, unmanned, and fluidized mining. Finally, this paper presents a strategic roadmap for deep fluidized coal mining. In summary, this paper develops new theoretical and technological systems for accomplishing groundbreaking innovations in mining technologies of coal resources in the deep underground.

Keywords： coal resource deep in situi> fluidized mining theoretical system key technologies strategic roadmap

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Development of a new method for RMR and Q classification method to optimize support system in tunneling

Asghar RAHMATI,Lohrasb FARAMARZI,Manouchehr SANEI

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 4, Pages 448-455 doi: 10.1007/s11709-014-0262-x

Abstract: Rock mass classification system is very suitable for various engineering design and stability analysis. classification method is confirmed by Japan Highway Public Corporation that this method can figure out either strength or deformability of rock mass, further appropriating the amount of rock bolts, thickness of shotcrete, and size of pitch of steel ribs just after the blasting procedure. Based on these advantages of method, in this study, according to data of five deep and long tunnels in Iran, two equations for estimating the value of method from and classification systems were developed. These equations as a new method were able to optimize the support system for and classification systems. From classification and its application in these case studies, it is pointed out that the method for the design of support systems in underground working is more reliable than the and classification systems.

Keywords： JHi> classification Qi> and RMRi> classification new method

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The Potential Role of Powdery Mildew-Resistance Gene Pm40i> in Chinese Wheat-Breeding Programs inthe Post-Pm21i> Era Perspective

Shengwen Tang,Yuting Hu,Shengfu Zhong,Peigao Luo

Engineering 2018, Volume 4, Issue 4, Pages 500-506 doi: 10.1016/j.eng.2018.06.004

Abstract:

Powdery mildew, which is caused by Blumeria graminis f. sp. tritici (Bgt), is an important leaf disease that affects wheat yield. Powdery mildew-resistance (Pm) gene Pm21 was first transferred into wheat in the 1980s, by translocating the Heuchera villosa chromosome arm 6VS to the wheat chromosome arm 6AL (6VS·6AL). Recently, new Bgt isolates that are virulent to Pm21 have been identified in some wheat fields, indicating that wheat breeders should be aware of the risk of deploying Pm21, although pathological details regarding these virulent isolates still remain to be discovered. Pm40 was identified and mapped on the wheat chromosome arm 7BS from several wheat lines developed from the progenies of a wild cross between wheat and Thinopyrum intermedium. Pm40 offers a broad spectrum of resistance to Bgt, which suggests that it is likely to provide potentially durable resistance. Cytological methods did not detect any large alien chromosomal segment in the wheat lines carrying Pm40. Lines with Pm40 and promising agronomical traits have been released by several wheat-breeding programs in the past several years. Therefore, we believe that Pm40 will play a role in powdery mildew-resistance wheat breeding after Pm21 resistance is overcome by Bgt isolates. In addition, both Pm21 and Pm40 were derived from alien species, suggesting that the resistance genes derived from alien species are potentially more durable or effective than those identified from wheat.

Keywords： Wheat Powdery mildew Pm21i> Pm40i> Alien species Native resistance

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NiFeRuO_xi> nanosheets on Ni foam as an electrocatalyst for efficient

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11, Pages 1698-1706 doi: 10.1007/s11705-023-2334-8

Abstract: The electrocatalyst NiFeRuO_xi>/NF, comprised of NiFeRuO_xi> nanosheetsNiFeRuO_xi>/NF displays high electrocatalytic activity and stability for overall alkalineA solar-driven system containing such a bifunctional NiFeRuO_xi>/NF has an almost 100%The NiFeRuO_xi> coating around Ni foam is an anti-corrosion layer and also a critical

Keywords： NiFeRuO_xi> nanosheets Ni foam electrocatalysis overall seawater splitting solar-driven

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Presence and Antimicrobial Susceptibility of RE-cmeABCi>-Positive Campylobacteri> Isolated Article

Dejun Liu, Weiwen Liu, Xing Li, Hong Yao, Zhangqi Shen, Yang Wang, Jianzhong Shen

Engineering 2020, Volume 6, Issue 1, Pages 34-39 doi: 10.1016/j.eng.2019.10.013

Abstract:

Campylobacter spp. (C. spp.) are the leading cause of human gastroenteritis worldwide. RE-CmeABC is a newly identified resistance-enhancing multidrug efflux pump of C. spp. that confers high-level resistance to fluoroquinolones, phenicols, macrolides, and tetracyclines, all of which are critical drugs in both human and veterinary medicine. In this study, we analyzed the presence and antimicrobial susceptibility of RE-cmeABC-positive Campylobacter isolates of food-animal origin from three representative regions (Shandong, Shanghai, and Guangdong) in China over three successive years, from 2014 to 2016. A total of 1088 Campylobacter isolates (931 C. coli and 157 C. jejuni) were recovered from the RE-cmeABC screening. We detected 122 (11.2%) RE-cmeABC-positive isolates of chicken origin, including 111 (70.7%) C. jejuni and 11 (1.2%) C. coli. This multidrug efflux pump is more prevalent among C. jejuni than C. coli. The level of resistance was significantly different in 111 RE-cmeABC-positive C. jejuni versus 46 RE-cmeABC-negative C. jejuni for florfenicol, clindamycin, and erythromycin (P < 0.05), but not for ciprofloxacin (CIP), tetracycline (TET), and gentamicin. However, the isolates harboring RE-cmeABC could shift the minimum inhibitory concentration distribution to the higher range for CIP and TET. Pulsed-field gel electrophoresis (PFGE) analysis suggested that horizontal transmission might be involved in the dissemination of RE-cmeABC in Shanghai and Guangdong, while clonal expansion was predominant in Shandong. Three isolates shared the indiscriminate PFGE types of RE-cmeABC-positive C. jejuni isolates in Shanghai and Guangdong, and four isolates in Shanghai and Shandong. Our study suggests the possibility of a wide dissemination of RE-cmeABC in Campylobacter of food-animal origin, which would pose a significant threat to public health.

Keywords： RE-cmeABCi> Campylobacteri> Ciprofloxacin Florfenicol

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A highly efficient methodology for the preparation of

Yongxin Zhang, Shucheng Wang, Yaodong Huang

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3, Pages 679-686 doi: 10.1007/s11705-020-1979-9

Abstract: A convenient and highly efficient method is described for the synthesis of -methoxycarbazole derivatives, including those with sterically demanding, benzannulated, or strongly electron-donating or -withdrawing substituents. Various -methoxycarbazole derivatives were directly prepared in good-to-moderate yields by the Pd (dba) CHCl /9,9-dimethyl-4,5-bis(diphenylphosphino)xanthene-catalyzed reactions of the corresponding dibromobiphenyl compounds and methoxya-mine. Based on this methodology, the first total synthesis of 3,3′-[oxybis(methylene)]bis(9-methoxy-9 -carbazole), an antimicrobial dimeric carbazole alkaloid previously isolated from the stem bark of , was achieved in 18% yield over seven steps from 1,2-dibromobenzene.

Keywords： Ni>-methoxyl carbazole dimeric Ni>-methoxyl carbazole alkaloid total synthesis double Ni>-arylation of methoxyamine

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Thermal and Mechanical Properties Optimization of ABi>O₄ Type EuNbO₄ By theBi>-Site Substitution of Ta Article

Lin Chen, Jing Feng

Engineering 2020, Volume 6, Issue 2, Pages 177-184 doi: 10.1016/j.eng.2019.12.006

Abstract:

Ferroelastic ABO₄ type RETaO₄ and RENbO₄ ceramics (where RE stands for rare earth) are being investigated as promising thermal barrier coatings (TBCs), and the mechanical properties of RETaO₄ have been found to be better than those of RENbO₄. In this work, B-site substitution of tantalum (Ta) is used to optimize the thermal and mechanical properties of EuNbO₄ fabricated through a solid-state reaction (SSR). The crystal structure is clarified by means of X-ray diffraction (XRD) and Raman spectroscopy; and the surface microstructure is surveyed via scanning electronic microscope (SEM). The Young's modulus and the thermal expansion coefficient (TEC) of EuNbO₄ are effectively increased; with respective maximum values of 169 GPa and 11.2×10^–6 K^–1 (at 1200 °C). The thermal conductivity is reduced to 1.52 W·K⁻¹·m⁻¹ (at 700 °C), and the thermal radiation resistance is improved. The relationship between the phonon thermal diffusivity and temperature was established in order to determine the intrinsic phonon thermal conductivity by eliminating the thermal radiation effects. The results indicate that the thermal and mechanical properties of EuNbO₄ can be effectually optimized via the B-site substitution of Ta, and that
this proposed material can be applied as a high-temperature structural ceramic in future.

Keywords： Thermal barrier coatings Rare earth niobates Substitution Thermal conductivity Thermal expansion coefficients Young’s modulus

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Traces and echoes of 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, Taixi Shuifai> (On Western Hydraulicsi>).Taixi Shuifai>.found that Archimedes’ screw and Ctesibius’ machine, which are included in Vitruvius’ De Architecturai> volumes, also appear in the work of Xu Guangqi.

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

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Accounting for the uncertainties in the estimation of average shear wave velocity using – correlations

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5, Pages 1199-1208 doi: 10.1007/s11709-021-0749-1

Abstract: Shear wave velocity ( Vi> _S) is a key parameter in such analysis, although the economyVarious Vi> _S–SPT– Ni> correlations are routinely incorporated in seismic hazardanalysis to estimate the value of Vi> _S.i> _S calculations.The scattering nature of the Vi> _S values estimated using different Vi> _{S

Keywords：

uncertainties


Vi> _S– Ni> correlations


Vi> _S30


SPT data


statistical


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Title Author Date Type Operation

Development of lunar regolith-based composite for - 3D printing via high-pressure extrusion system

Journal Article

LivestockWaste 2016-i>International Conference on Recent Advances in Pollution Control and ResourceRecovery for the Livestock Sectori>

Xinmin Zhan, Liwen Xiao

Journal Article

Aerosol exposure assessment during reclaimed water utilization in China and risk evaluation in case of

Journal Article

End-use energy utilization efficiency of Nigerian residential sector

Fidelis I. ABAM,Olayinka S. OHUNAKIN,Bethrand N. NWANKWOJIKE,Ekwe B. EKWE

Journal Article

Novel perspective for urban water resource management:

Lijie Zhou, Hongwu Wang, Zhiqiang Zhang, Jian Zhang, Hongbin Chen, Xuejun Bi, Xiaohu Dai, Siqing Xia, Lisa Alvarez-Cohen, Bruce E. Rittmann

Journal Article

Spin polarization strategy to deploy proton resource over atomic-level metal sites for highly selective

Journal Article

Theoretical and technological exploration of deep

Heping XIE, Yang JU, Shihua REN, Feng GAO, Jianzhong LIU, Yan ZHU

Journal Article

Development of a new method for RMR and Q classification method to optimize support system in tunneling

Asghar RAHMATI,Lohrasb FARAMARZI,Manouchehr SANEI

Journal Article

The Potential Role of Powdery Mildew-Resistance Gene Pm40i> in Chinese Wheat-Breeding Programs inthe Post-Pm21i> Era

Shengwen Tang,Yuting Hu,Shengfu Zhong,Peigao Luo

Journal Article

NiFeRuO_xi> nanosheets on Ni foam as an electrocatalyst for efficient

Journal Article

Presence and Antimicrobial Susceptibility of RE-cmeABCi>-Positive Campylobacteri> Isolated

Dejun Liu, Weiwen Liu, Xing Li, Hong Yao, Zhangqi Shen, Yang Wang, Jianzhong Shen

Journal Article

A highly efficient methodology for the preparation of

Yongxin Zhang, Shucheng Wang, Yaodong Huang

Journal Article

Thermal and Mechanical Properties Optimization of ABi>O₄ Type EuNbO₄ By theBi>-Site Substitution of Ta

Lin Chen, Jing Feng

Journal Article

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

Michela CIGOLA,Yibing FANG

Journal Article

Accounting for the uncertainties in the estimation of average shear wave velocity using – correlations

Journal Article

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