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An innovative bio-engineering retaining structure for supporting unstable soil

Journal of Rock Mechanics and Geotechnical engineering 2017年第2期9卷 247-259页

作者： Gianluca Bella Monica Barbero Fabrizio Barpi Mauro Borri-Brunetto Daniele Peila DISEG Politecnico di TorinoCorso Duca degli Abruzzi 24Torino10129Italy DIATI Politecnico di TorinoCorso Duca degli Abruzzi 24Torino10129Italy

The paper presents a new prefabricated bio-engineering structure for the support of unstable *** prefabricated structure is made of a steel frame which is completely filled with soil and a face made of tree trunks among which scions or autochthonous bushes are *** to the difficulties in interpreting the complex interaction between soil and structure during the installation and lifetime,an in situ test was carried out in order to evaluate the state of stress in the steel frame and to understand the global behavior of the structure under service *** the basis of the obtained results,a procedure for checking the structure safety was proposed and *** easy design method was developed during the ***,the use of this type of prefabricated structure shows several advantages,such as good performances in terms of stabilizing effects,and easy assembly and transport.

关键词： bio-engineering Test site Landslide Live cribwall Unstable soil

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Ion Beam bio-engineering and Crop Breeding

Ion Beam Bio-engineering and Crop Breeding

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2010 International Conference on Advanced Measurement and Test (AMT 2010)

作者： Wang Tie-gu 1,a,Li Xuebin 1,b,Yang Tianyou 1,c,Wang Weidong 2,d 1 Henan Institute of Science and Technology,Xinxiang,453003,China 2 Henan Provincial Key Laboratory of Ion Beam bioengineering,Zhengzhou University,Zhengzhou 450052,China

Ion beam bio-engineering was established by Chinese researcher in *** thirty years past,there were delightful progress by low energy ion beam induced mutants and crop *** ion beam implant the organism,charge exchanged between ions and organism *** there were ion sputtering,ion penetration and surface damage of plant cell wall *** to etching action of low energy beam to plant cell wall,ion beam mediated exogenous DNA transformation becomes *** applications and achievements in crop breeding were described.

关键词： Ion Beam bio-engineering Mutagen Crop Breeding

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Modulation of drain current as a function of energies substrate for InP HEMT devices

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Journal of Semiconductors 2018年第11期39卷 31-35页

作者： S.Derrouiche B.Bouazza C.Sayah Laboratory for Materials and Renewable Energies Faculty of Technology University Abou Bekr Belkaid of TlemcenDepartment of Electrical and Electronics Engineering Faculty of Technology University Center Belhadj Bouchaib of Ain-Temouchent Department of Electrical engineering

We present the drain current modulation for an HEMT using the TCAD SILVACO simulation tool with a drift–diffusion model at ambient temperature. The obtained results show that the decreases of substrate energies induce the decreasing of the obtained drain current similarly to the transconductance, which described the device due to increasing the transferred electrons concentration towards the substrate region, consequently to increase the molar fraction where the concentration of transferred electrons increases from 49 × 10;to 65 × 10;cm;when the molar fraction increases from 0.1 to 0.9. On the other hand, the decrease of molar fraction from 0.9 to 0.1 induces the increasing of drain current by 63%, where it increases from 1.1 mA/mm to 3 mA/mm at V;= 0.6 V and V;= 1 V. This fact leads to ensuring the possibility of using the obtained results of this work related to drain current for producing performances devices that brings together the AC characteristics of HEMT with a weak drain current, which is important in the bioengineering domain.

关键词： high electron mobility transistors (HEMT) electron concentration drain current modulation electron injection bio-engineering

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