In this paper, a surface potential based threshold voltage model of fully-depleted（FD） recessed-source/drain（Re-S/D）silicon-on-insulator（SOI） metal-oxide semiconductor field-effect transistor（MOSFET） is presen...In this paper, a surface potential based threshold voltage model of fully-depleted（FD） recessed-source/drain（Re-S/D）silicon-on-insulator（SOI） metal-oxide semiconductor field-effect transistor（MOSFET） is presented while considering the effects of high-k gate-dielectric material induced fringing-field. The two-dimensional（2D） Poisson＇s equation is solved in a channel region in order to obtain the surface potential under the assumption of the parabolic potential profile in the transverse direction of the channel with appropriate boundary conditions. The accuracy of the model is verified by comparing the model＇s results with the 2D simulation results from ATLAS over a wide range of channel lengths and other parameters,including the dielectric constant of gate-dielectric material.展开更多
目的观察维生素K对儿童营养性维生素D缺乏性佝偻病(rickets of vitamin D deficiency,VDDR)的影响。方法选取2023年4月至2024年4月我院儿科收治的VDDR患儿100例,随机分为对照组(n=50,口服维生素D)和研究组(n=50,口服维生素D、K4),两组...目的观察维生素K对儿童营养性维生素D缺乏性佝偻病(rickets of vitamin D deficiency,VDDR)的影响。方法选取2023年4月至2024年4月我院儿科收治的VDDR患儿100例,随机分为对照组(n=50,口服维生素D)和研究组(n=50,口服维生素D、K4),两组均连续用药2周。比较两组骨密度(bone mineral density,BMD)、骨特异性碱性磷酸酶(bone-specific alkaline phosphatase,B-ALP)、骨钙素(osteocalcin,OC)、羧化不全OC(undercarboxylated osteocalcin,ucOC)、前列腺素(prostaglandin,PG)E2、肿瘤坏死因子(tumor necrosis factor-α,TNF)-α、白介素(interleukin,IL)-1β及不良反应发生情况。结果治疗后,两组桡骨、尺骨BMD均高于治疗前(P<0.05),且研究组高于对照组(P<0.05)。治疗后,两组B-ALP、OC、ucOC、PGE2、TNF-α及IL-1β水平均低于治疗前(P<0.05),且研究组小于对照组(P<0.05)。两组不良反应总发生率差异无统计学意义(P>0.05)。结论维生素K可改善VDDR患儿BMD,调节B-ALP、骨钙素、ucOC、PGE2、TNF-α及IL-1β水平,且未增加不良反应发生风险。展开更多
基金supported by the Science and Engineering Research Board(SERB),Department of Science and Technology,Ministry of Human Resource and Development,Government of India under Young Scientist Research(Grant No.SB/FTP/ETA-415/2012)
文摘In this paper, a surface potential based threshold voltage model of fully-depleted（FD） recessed-source/drain（Re-S/D）silicon-on-insulator（SOI） metal-oxide semiconductor field-effect transistor（MOSFET） is presented while considering the effects of high-k gate-dielectric material induced fringing-field. The two-dimensional（2D） Poisson＇s equation is solved in a channel region in order to obtain the surface potential under the assumption of the parabolic potential profile in the transverse direction of the channel with appropriate boundary conditions. The accuracy of the model is verified by comparing the model＇s results with the 2D simulation results from ATLAS over a wide range of channel lengths and other parameters,including the dielectric constant of gate-dielectric material.
文摘目的观察维生素K对儿童营养性维生素D缺乏性佝偻病(rickets of vitamin D deficiency,VDDR)的影响。方法选取2023年4月至2024年4月我院儿科收治的VDDR患儿100例,随机分为对照组(n=50,口服维生素D)和研究组(n=50,口服维生素D、K4),两组均连续用药2周。比较两组骨密度(bone mineral density,BMD)、骨特异性碱性磷酸酶(bone-specific alkaline phosphatase,B-ALP)、骨钙素(osteocalcin,OC)、羧化不全OC(undercarboxylated osteocalcin,ucOC)、前列腺素(prostaglandin,PG)E2、肿瘤坏死因子(tumor necrosis factor-α,TNF)-α、白介素(interleukin,IL)-1β及不良反应发生情况。结果治疗后,两组桡骨、尺骨BMD均高于治疗前(P<0.05),且研究组高于对照组(P<0.05)。治疗后,两组B-ALP、OC、ucOC、PGE2、TNF-α及IL-1β水平均低于治疗前(P<0.05),且研究组小于对照组(P<0.05)。两组不良反应总发生率差异无统计学意义(P>0.05)。结论维生素K可改善VDDR患儿BMD,调节B-ALP、骨钙素、ucOC、PGE2、TNF-α及IL-1β水平,且未增加不良反应发生风险。
