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Possible role of power-to-vehicle and vehicle-to-grid as storages and flexible loads in the German 110 kV distribution grid

Erik BLASIUS

《能源前沿(英文)》 2017年 第11卷 第2期   页码 146-154 doi: 10.1007/s11708-017-0475-5

摘要: The sectoral coupling of road traffic (in form of E-Mobility) and electrical energy supply (known as power-to-vehicle (P2V), vehicle-to-grid (V2G) is discussed as one of the possible development concepts for the flexible system integration of renewable energy sources (RES) and the support of the objectives of the German energy transition (aka. Energiewende). It is obvious that E-mobility, which shall produce as few emissions as possible, should be based on the exclusive use of renewable energies. At the same time, the E-mobility can help to reduce the negative effects of the grid integration of RES to the distribution grids. However, this assumes that the electric vehicles are smart integrated to the grids where they charge, meaning that they must be able to communicate and be controllable. Because per se unplanned and uncontrollable charging processes are harmful for the grid operation, especially if they occur frequently and unexpected in similar time periods, the effects can hardly be controlled and can lead to serious technical problems in practical grid operation. This paper provides an insight into the current development of E-mobility in Germany. The insight will be matched with the German development of the RES. By the combination of both sectors, the possible role of the E-mobility for the distribution grid will be depicted, which can have positive and negative aspects.

关键词: P2V     V2G     grid integration     electric vehicles     distribution grid    

Biding strategy of vehicle parking for participating in energy and spinning reserve markets

Ali MANSOORI,Rahmat AAZAMI,Ramin SAYADI

《能源前沿(英文)》 2014年 第8卷 第4期   页码 403-411 doi: 10.1007/s11708-014-0333-7

摘要: In this paper a model for suggesting a smart parking that involves a set of electric cars is presented to auction the management ability and correct parking planning in reserve spinning market, secondary energy market and grid. Parking interest under various scenarios is analyzed and its effective results are presented by a valid model. Besides, particle swarm optimization algorithm is used for calculating maximum benefit.

关键词: vehicle-to-grid (V2G)     spinning reserve     energy secondary market     smart parking    

Impact evaluation of large scale integration of electric vehicles on power grid

Rabah BOUDINA, Jie WANG, Mohamed BENBOUZID, Farid KHOUCHA, Mohamed BOUDOUR

《能源前沿(英文)》 2020年 第14卷 第2期   页码 337-346 doi: 10.1007/s11708-018-0550-6

摘要: As the world witnesses a continual increase in the global energy demand, the task of meeting this demand is becoming more difficult due to the limitation in fuel resources as well as the greenhouse gases emitted which accelerate the climate change. As a result, introducing a policy that promotes renewable energy (RE) generation and integration is inevitable for sustainable development. In this endeavor, electrification of the transport sector rises as key point in reducing the accelerating environment degradation, by the deployment of new type of vehicles referred to as PHEV (plug-in hybrid electric vehicle). Besides being able to use two kinds of drives (the conventional internal combustion engine and the electric one) to increase the total efficiency, they come with a grid connection and interaction capability known as the vehicle-to-grid (V2G) that can play a supporting role for the whole power system by providing many ancillary services such as energy storage mean and power quality enhancer. Unfortunately, all these advantages do not come alone. The uncontrolled large scale EV integration may present a real challenge and source of possible failure and instability for the grid. In this work the large scale integration impact of EVs will be investigated in details. The results of power flow analysis and the dynamic response of the grid parameters variation are presented, taking the IEEE 14 bus system as a test grid system.

关键词: PHEV     vehicle-to-grid (V2G)     technical impact     IEEE 14 bus     power flow analysis    

Capture of carbon dioxide over porous solid adsorbents lithium silicate, lithium aluminate and magnesium aluminate at pre-combustion temperatures

V. Korake, A. G. Gaikwad

《化学科学与工程前沿(英文)》 2011年 第5卷 第2期   页码 215-226 doi: 10.1007/s11705-010-1012-9

摘要: The capturing process for carbon dioxide over porous solid adsorbents such as lithium silicate, lithium aluminate, and magnesium aluminate at pre- combustion temperatures was studied. Lithium silicate was prepared by the sol gel and solid fusion methods. The lithium silicate adsorbent was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), nuclear magnetic resonance (NMR), and surface area. The capturing of carbon dioxide over lithium silicate, lithium aluminate, and magnesium aluminate was explored at different experimental conditions such as exposure time, temperature variation, and exposure carbon dioxide pressure. The capturing process for carbon dioxide was investigated over these adsorbents with variation of their metal mole ratios. The effect of the addition of (promoter) sodium, potassium, and cesium in the lithium silicate adsorbent was explored to investigate the variation of the capture of carbon dioxide over these adsorbents.

关键词: capturing CO2     lithium silicate     lithium aluminate     magnesium aluminate    

惠更斯超表面在天线领域的应用前景

George V. Eleftheriades, Minseok Kim, Vasileios G. Ataloglou, Ayman H. Dorrah

《工程(英文)》 2022年 第11卷 第4期   页码 21-26 doi: 10.1016/j.eng.2021.05.011

Autoimmunity in acute ischemic stroke and the role of blood—brain barrier: the dark side or the light one?

Nikolay V. Tsygan, Alexandr P. Trashkov, Igor V. Litvinenko, Viktoriya A. Yakovleva, Alexandr V.Ryabtsev, Andrey G. Vasiliev, Leonid P. Churilov

《医学前沿(英文)》 2019年 第13卷 第4期   页码 420-426 doi: 10.1007/s11684-019-0688-6

摘要: This article presents a synopsis of the current data on the mechanisms of blood—brain barrier (BBB) alteration and autoimmune response in acute ischemic stroke. Most researchers confirm the relationship between the severity of immunobiochemical changes and clinical outcome of acute ischemic stroke. Ischemic stroke is accompanied by aseptic inflammation, which alters the brain tissue and exposes the co-stimulatory molecules of the immune system and the neuronal antigens. To date, BBB is not considered the border between the immune system and central nervous system, and the local immune subsystems are found within and behind the BBB. BBB disruption contributes to the leakage of brain autoantigens and induction of secondary autoimmune response to neuronal antigens and long-term inflammation. Glymphatic system function is altered and jeopardized both in hemorrhagic and ischemic stroke types. The receptors of innate immunity (toll-like receptor-2 and toll-like receptor-4) are also involved in acute ischemia—reperfusion injury. Immune response is related to the key processes of blood clotting and fibrinolysis. At the same time, the stroke-induced immune activation may promote reparation phenomena in the brain. Subsequent research on the reduction of the acute ischemic brain injury through the target regulation of the immune response is promising.

关键词: stroke     blood–brain barrier     autoimmunity     innate immunity     inflammation     cell death    

Mechanisms of connective tissue formation and blocks of mitogen activated protein kinase

Irina A SHURYGINA, Michael G SHURYGIN, Nataliya I AYUSHINOVA, Galina B GRANINA, Nikolay V ZELENIN

《化学科学与工程前沿(英文)》 2012年 第6卷 第2期   页码 232-237 doi: 10.1007/s11705-012-1286-1

摘要: Ninety male Wistar rats were selected under the “Guide for the Care and Use of Laboratory Animals” for skin-muscle wound models. Three groups of animals were examined respectively for inoculation of inhibitor of p38 MAPK (mitogen activated protein kinase) SB 203580 and JNK inhibitor SP 600125, and a control. Light microscopy, immunohistochemistry, and tensometry revealed that the inhibition of p38 or JNK cascades have modified the formation of the connective tissue scar. The degree of connective tissue growth in the area of surgical wound had been significantly reduced by the end of observation (30 d) as the SB 203580 was applied (% volume of collagen 43.60 (41.05 – 60.15) 73.54 (66.87 – 78.01) in control, = 0.002). Conversely, when we have applied the JNK blocker, the density of collagen in scar tissue increased (78.14 (72.77 – 81.14), = 0.022 control). SB203580 inhibits the expression of p38, c-Jun and c-Fos. When we have used the JNK blocker, the expression of c-Fos and c-Jun decreased, but the expression of p38 increased. This determines the high functional activity of fibroblasts after using SP 600125. Obtained results show the importance of studying regulators of cell differentiation as potential drugs, which significantly affect the outcome of the pathological processes.

关键词: connective tissue     mitogen activated protein kinase (MAPK)     p38     JNK    

Observation of a higher JAK2 V617F homozygous mutated clone in polycythemia vera compared to essential

LIU Hongxing, TONG Chunrong, CAI Peng, GU Jiangying, LIN Yuehui, TENG Wen, WANG He, ZHANG Ying, ZHU Ping

《医学前沿(英文)》 2008年 第2卷 第3期   页码 309-313 doi: 10.1007/s11684-008-0059-1

摘要: Single-tube bi-directional allele specific amplification (SB-ASA) and real-time quantitative polymerase chain reaction (RQ-PCR) assays were developed and performed for JAK2V617F detection on 40 polycythemia vera (PV) samples, 31 essential thrombocythemia (ET) samples, 40 acute leukemia samples, and 40 healthy control samples. Differences between detect limitations of the two assays and their influence on the mutation detection rate were analyzed. The results showed that in some samples, the JAK2V617F burden was as low as nearly 1%, and thus more JAK2V617F-positive samples were detected by RQ-PCR than by SB-ASA assay due to the former higher detect limitation. Mutation allele ratios in PV and ET samples and their relevance to biological characteristics were also analyzed. The results showed that the mutation allele ratio was 0.436 ± 0.261 in PV, higher than the 0.216 ± 0.207 in ET; percentage of certainly homozygous mutation carriers in PV was 40.54%, higher than the 10% in ET. However, statistical analysis showed no relevance between mutation allele burden and sex or age. Our result shows that the pathogenesis of PV and ET may be related to the mutation allele burden of JAK2V617F.

关键词: specific amplification     essential thrombocythemia     Single-tube bi-directional     JAK2V617F-positive     JAK2V617F detection    

Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene

Xiaohong LI, Wenying LI,

《化学科学与工程前沿(英文)》 2010年 第4卷 第2期   页码 142-146 doi: 10.1007/s11705-009-0233-2

摘要: TiO-AlOmixed oxides with different compositions ranging from 40wt-% to 95wt-% of TiO were prepared by sol-gel method and impregnated with different amounts of VO. Supports and catalysts were characterized by X-ray diffraction (XRD), physisorption, temperature preprogrammed reduction (H-TPR), and ammonia temperature programmed desorption (NH-TPD). TiO content in the support had obvious effect on the crystal structure, texture characteristic, acid property, and catalytic activity in dehydrogenation of ethylbenzene (EB) with carbon dioxide. The highest catalytic activity was acquired when the TiO content was 50 wt-%.

关键词: desorption     different     TiO-AlOmixed     physisorption     ethylbenzene    

Spatial targeting evaluation of energy and environmental performance of waste-to-energy processing

Varbanov, Timothy G. Walmsley, Yee V. Fan, Jiří J. Klemeš, Simon J. Perry

《化学科学与工程前沿(英文)》 2018年 第12卷 第4期   页码 731-744 doi: 10.1007/s11705-018-1772-1

摘要:

Waste-to-energy supply chains are important potential contributors to minimising the environmental impacts of municipal solid waste by reducing the amounts of waste sent to landfill, as well as the fossil fuel consumption and environmental footprints. Accounting for the spatial and transport properties of the waste-to-energy supply chains is crucial for understanding the problem and improving the supply chain designs. The most significant challenge is the distributed nature of the waste generation and the household energy demands. The current work proposes concepts and a procedure for targeting the size of the municipal solid waste collection zone as the first step in the waste-to-energy supply chains synthesis. The formulated concepts and the provided case study reveal trends of reducing the net greenhouse gas savings and energy recovery by increasing the collection zone size. Population density has a positive correlation with the greenhouse gas saving and energy recovery performance. For smaller zone size the energy recovery from waste approaches and in some cases may surpass the energy spent on waste transportation. The energy recovery and greenhouse gas savings remain significant even for collection zones as large as 200 km2. The obtained trends are discussed and key directions for future work are proposed.

关键词: waste-to-energy     supply chain optimisation     GHG savings     energy recovery ratio    

Non-thermal plasma for exhaust gases treatment

,Fernando GÓMEZ B.,Joel PACHECO P.,Arturo COLÍN C.,Víctor SÁNCHEZ-MENDIETA,Ricardo VALDIVIA B.

《机械工程前沿(英文)》 2015年 第10卷 第3期   页码 301-305 doi: 10.1007/s11465-015-0344-z

摘要:

This article describes a study on a non-thermal plasma device to treat exhaust gases in an internal combustion engine. Several tests using a plasma device to treat exhaust gases are conducted on a Honda GX200-196 cm3 engine at different rotational speeds. A plasma reactor could be efficient in degrading nitrogen oxides and particulate matter. Monoxide and carbon dioxide treatment is minimal. However, achieving 1%–3% degradation may be interesting to reduce the emission of greenhouse gases.

关键词: plasma treatment     NOx     CO     CO2     particulate matter     vehicle    

Statistical modeling of radiolytic (

G. S. Muthu Iswarya, B. Nirkayani, A. Kavithakani, V. C. Padmanaban

《环境科学与工程前沿(英文)》 2019年 第13卷 第3期 doi: 10.1007/s11783-019-1126-3

摘要:

Linear, interactive and quadratic effects of process parameters were studied.

Degradation of Ofloxacin (Ofx) was related with G value of irradiation process.

The synergistic effect of H2O2 on lower dose of g-irradiation was established.

The process follows pseudo first order with dose constant (d = 0.232 kGy1).

关键词: Ofloxacin     Gamma irradiation     Face centered central composite design     Reaction kinetics     Gas Chromatography-Mass spectrum    

Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

《化学科学与工程前沿(英文)》 2012年 第6卷 第1期   页码 38-46 doi: 10.1007/s11705-011-1167-z

摘要: An effective method for the regeneration of thermally deactivated commercial monolith SCR catalysts was investigated. Two types of regenerated solutions, namely NH Cl (1 mol/L) and dilute H SO (0.5 mol/L), were employed to treat the used catalyst. The effects of temperature and the regeneration process on the structural and textural properties of the catalysts were determined by X-ray diffraction, scanning electron microscopy, N adsorption/desorption, elemental analysis and Fourier transform infrared spectroscopy. The results suggest that the anatase phase of the used catalyst is maintained after exposure to high temperatures. Some of the catalytic activity was restored after regeneration. The catalyst regenerated by aqueous NH Cl had a higher activity than that of the catalyst treated by dilute H SO . The main reason is that the NH generated from the decomposition of NH Cl at high temperatures can be adsorbed onto the catalyst which promotes the reaction. The aggregated V O were partially re-dispersed during the regeneration process, and the intrinsic oxidation of ammonia with high concentrations of O is a factor that suppresses the catalytic activity.

关键词: V2O5-WO3/TiO2 catalysts     thermal deactivation     regeneration     NH4Cl     dilute H2SO4 solution    

一种用于用户端设备且工作在2G/3G/4G/IMT/5G频段的小型化超宽带交叉振子天线 Correspondences

郭景丽1,崔伦1,刘英1,孙保华1,李肖锋2

《信息与电子工程前沿(英文)》 2022年 第23卷 第2期   页码 339-345 doi: 10.1631/FITEE.2000456

摘要: 设计了一种用于用户端设备(CPE)且工作在2G/3G/4G/IMT/5G频段的小型化超宽带交叉振子天线。此外,通过在交叉振子下方增加开缝的寄生贴片,天线整体的带宽能够扩展到5G sub-6 GHz频段。此外,对天线结构进行了加工和测试。

关键词: 5G;交叉振子;双极化天线;终端天线;超宽带    

6G网络内生安全新范式探讨 Review

季新生1,2,3,邬江兴2,3,金梁2,黄开枝2,3,陈亚军2,孙小丽2,游伟2,霍树民2,杨静2

《信息与电子工程前沿(英文)》 2022年 第23卷 第10期   页码 1421-1450 doi: 10.1631/FITEE.2200060

摘要:

6G网络将面临更为复杂的内生安全问题,亟需提出新的普适性安全理论,建立新的实践规范,以应对网络空间“未知的未知”安全威胁。本文首先阐述了网络空间内生安全发展的新范式,介绍了6G网络安全的需求愿景。进而详细分析了6G核心网、无线接入网、新兴使能技术等面临的安全问题,以及相应的安全技术发展现状,分析了内生安全与传统安全的融合发展,进而给出网络空间内生安全新范式指导下的相关安全理论与技术构想。

关键词: 6G安全;内生安全新范式;核心网;无线接入网    

标题 作者 时间 类型 操作

Possible role of power-to-vehicle and vehicle-to-grid as storages and flexible loads in the German 110 kV distribution grid

Erik BLASIUS

期刊论文

Biding strategy of vehicle parking for participating in energy and spinning reserve markets

Ali MANSOORI,Rahmat AAZAMI,Ramin SAYADI

期刊论文

Impact evaluation of large scale integration of electric vehicles on power grid

Rabah BOUDINA, Jie WANG, Mohamed BENBOUZID, Farid KHOUCHA, Mohamed BOUDOUR

期刊论文

Capture of carbon dioxide over porous solid adsorbents lithium silicate, lithium aluminate and magnesium aluminate at pre-combustion temperatures

V. Korake, A. G. Gaikwad

期刊论文

惠更斯超表面在天线领域的应用前景

George V. Eleftheriades, Minseok Kim, Vasileios G. Ataloglou, Ayman H. Dorrah

期刊论文

Autoimmunity in acute ischemic stroke and the role of blood—brain barrier: the dark side or the light one?

Nikolay V. Tsygan, Alexandr P. Trashkov, Igor V. Litvinenko, Viktoriya A. Yakovleva, Alexandr V.Ryabtsev, Andrey G. Vasiliev, Leonid P. Churilov

期刊论文

Mechanisms of connective tissue formation and blocks of mitogen activated protein kinase

Irina A SHURYGINA, Michael G SHURYGIN, Nataliya I AYUSHINOVA, Galina B GRANINA, Nikolay V ZELENIN

期刊论文

Observation of a higher JAK2 V617F homozygous mutated clone in polycythemia vera compared to essential

LIU Hongxing, TONG Chunrong, CAI Peng, GU Jiangying, LIN Yuehui, TENG Wen, WANG He, ZHANG Ying, ZHU Ping

期刊论文

Effect of TiO 2 loading on the activity of V/TiO 2 -Al 2 O 3 in the catalytic oxidehydrogenation of ethylbenzene

Xiaohong LI, Wenying LI,

期刊论文

Spatial targeting evaluation of energy and environmental performance of waste-to-energy processing

Varbanov, Timothy G. Walmsley, Yee V. Fan, Jiří J. Klemeš, Simon J. Perry

期刊论文

Non-thermal plasma for exhaust gases treatment

,Fernando GÓMEZ B.,Joel PACHECO P.,Arturo COLÍN C.,Víctor SÁNCHEZ-MENDIETA,Ricardo VALDIVIA B.

期刊论文

Statistical modeling of radiolytic (

G. S. Muthu Iswarya, B. Nirkayani, A. Kavithakani, V. C. Padmanaban

期刊论文

Effective regeneration of thermally deactivated commercial V-W-Ti catalysts

Xuesong SHANG, Jianrong LI, Xiaowei YU, Jinsheng CHEN, Chi HE

期刊论文

一种用于用户端设备且工作在2G/3G/4G/IMT/5G频段的小型化超宽带交叉振子天线

郭景丽1,崔伦1,刘英1,孙保华1,李肖锋2

期刊论文

6G网络内生安全新范式探讨

季新生1,2,3,邬江兴2,3,金梁2,黄开枝2,3,陈亚军2,孙小丽2,游伟2,霍树民2,杨静2

期刊论文