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S. E. M. analysis of quartz sand grains from selected Hong Kong and Chinese littoral environments

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Acta Oceanologica Sinica 1989年第3期8卷 409-422页

作者： A.T.Williams M.C.Thomas Coastal Research Unit Department of Science and Chemical Engineering.the Polytechnic of WalesPontypriddMid GlamorganCF37 IDL.UKCoastal Research UnitDepartment of Science and Chemical Engineering.the Polytechnic of WalesPontypriddMid GlamorganCF37 IDL.UK

This pilot study attempts to demonstrate some underlying scanning electron microscopy themes of quartz grain surface textures. A variety of textural patterns and individual features are described for grains selected from various littoral environments. An attempt was made to differentiate samples on surface textures alone, but limitations of using this technique in sedimentological isolation were apparent. Statistical analysis of checklist data and photographic evidence revealed some of the more important feature combinations used in environmental diagnosis. The use of discriminant analysis provided quantitative sample separation.

关键词： In analysis of quartz sand grains from selected Hong Kong and Chinese littoral environments

The inception of a Paleotethyan magmatic arc in Iberia

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Geoscience Frontiers 2015年第2期6卷 297-306页

作者： M.F.Pereira A.Castro C.Fernández idl Departamento de Geociências ECT Universidade de évora Departamento de Geología Universidad de Huelva Departamento de Geodinámica y Paleontología Universidad de Huelva

This paper presents a compilation of recent U-Pb （zircon） ages of late Carboniferous-early Permian （LC EP） calc-alkaline batholiths from lberia, together with a petrogenetic interpretation of magma generation based on comparisons with Mesozoic and Tertiary Cordilleran batholiths and experimental melts. Zircon U-Pb ages distributed over the range ca. 315-280 Ma, indicate a linkage between calc-alkaline magmatism, Iberian orocline generation and Paleotethys subduction. It is also shown that Iberian LC-EP calcalkaline batholiths present unequivocal subduction-related features comparable with typical Cordilleran batholiths of the Pacific Americas active margin, although geochemical features were partially obscured by local modifications of magmas at the level of emplacement by country rock assimilation. When and how LC-EP calc-alkaline batholiths formed in Iberia is then discussed, and a new and somewhat controversial interpretation for their sources and tectonic setting （plume-assisted relamination） is suggested. The batholiths are proposed to have formed during the subduction of the Paleotethys oceanic plate （Pangaea self-subduction） and, consequently, they are unrelated to Variscan collision. The origin of the Iberian batholiths is related to the Eurasian active margin and probably represents the inception of a Paleotethvan arc in the core of Pangaea.

关键词： Permo-Carboniferous Calc-alkaline arc-related batholiths Pangaea Paleotethys subduction Variscan and Cimmerian cycles

Paleogeography and Sequence Stratigraphy in Dariyan Carbonate Reservoir, NE Shiraz

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Open Journal of Geology 2016年第11期6卷 1423-1433页

作者： Amir Karimian Torghabeh Nuno Pimentel Department of Earth Sciences Faculty of Sciences Shiraz University Shiraz Iran idl Faculty of Sciences Lisbon University Lisbon Portugal

Zagros Basin is a very important hydrocarbon region in the Iran and World. One of the major reservoirs in this basin is the Lower Cretaceous Dariyan Formation. Based on petrographic studies, 9 microfacies were determined and interpreted as related to lagoon, barrier island and open marine environments. Facies associations show deposition in a carbonate ramp. Sequence stratigraphy studies show two sequences, each one with a transgressive system tract, marked by open marine microfacies, and then a retrogradational highstand, marked by barrier and lagoonal facies. Paleogeography and sequence stratigraphy studies of this formation and correlation of it with other sections may provide useful information about reservoir characterizations.

关键词： Dariyan Formation Reservoir Microfacies Sequence Stratigraphy Paleogeography

A brief review on key technologies in the battery management system of electric vehicles

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Frontiers of Mechanical Engineering 2019年第1期14卷 47-64页

作者： Kailong LIU Kang LI Qiao PENG Cheng ZHANG School of Electronics Electrical Engineering and Computer ScienceQueen's University BelfastBT9 5AH BelfastUK School of Physics and Optoelectronic Engineering Nanjing University of Information Science and TechnologyNanjing 210044China idl Warwick Manufacturing GroupUniversity of WarwickCV4 7AL CoventryUK

Batteries have been widely applied in many high-power applications,such as electric vehicles(EVs)and hybrid electric vehicles,where a suitable battery management system(BMS)is vital in ensuring safe and reliable operation of *** paper aims to give a brief review on several key technologies of BMS,including battery modelling,state estimation and battery ***,popular battery types used in EVs are surveyed,followed by the introduction of key technologies used in *** battery models,including the electric model,thermal model and coupled electro-thermal model are ***,battery state estimations for the state of charge,state of health and internal temperature are comprehensively ***,several key and traditional battery charging approaches with associated optimization methods are discussed.

关键词： battery management system battery modelling battery state estimation battery charging

Identification of the Sustainable Wind and Solar Potential in Urban Areas Using a GIS Methodology

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Energy and Power Engineering 2019年第12期11卷 398-413页

作者： Teresa Simoes Ana Estanqueiro Jorge Maia Alves Laboratorio Nacional de Energia e Geologia—LNEG LisboaPortugal Faculdade de Ciencias Universidade de LisboaIDLLisboaPortugal

In recent years the publication of new legislation in the renewables sector, namely the one related to microgeneration systems, has contributed to an increase in the installation of renewable energy systems in Portugal. Nevertheless, the investment in these systems is still high and the risk of considering sites with reduced resource constitutes a barrier to the development of this sub-sector. In the sequence of the previous work developed in the wind energy planning area, a methodology to identify the sustainable wind and solar potential in urban areas was developed, in order to reduce the pre-installation costs related to a less suitable site selection, and also to identify the real potential of the urban areas. In order to do so, a geographical information system was used and a set of tools was developed. The methodology was structured to enable its replication in other geographical locations and is sufficiently interactive to allow for the variation of the main input data. A case study in two urban environments is presented in this document to illustrate the developed methodology.

关键词： Sustainable Potential GIS Microproduction of Electricity

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工业炸药特性的状态方程

爆破器材 1982年第3期 42-46页

作者： M.A.Srinivas G.Bjarnholt 宗海祥印度idl化学制品有限公司瑞典爆轰研究基金会

一、引言本研究的目的,在于获得有关岩石爆破常用炸药(在此以铵油炸药为代表)性能参数的理论计算值与实验值之间差别的资料。作者希望,本研究将使人们更好地了解到,在为这类炸药的特性选择合适的状态方程方面,可能改进到什么程度。几位... 详细信息

一、引言本研究的目的,在于获得有关岩石爆破常用炸药(在此以铵油炸药为代表)性能参数的理论计算值与实验值之间差别的资料。作者希望,本研究将使人们更好地了解到,在为这类炸药的特性选择合适的状态方程方面,可能改进到什么程度。几位作者声称他们对当前描述炸药特性的状态方程是不满意的。尽管以前曾就如何描述工业炸药的特性作过尝试,但仍感到,有必要对爆轰压力为(5～10)×10～9帕的工业爆炸剂中的个别低密度炸药的理论数据和实测数据进行详细的比较。

关键词：状态方程维里 P-V-T关系式工业炸药民用炸药混合炸药爆速

2D TEM Modeling for a Hydrogeological Study in the ParanáSedimentary Basin, Brazil

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International Journal of Geosciences 2017年第5期8卷 693-710页

作者： Emerson Rodrigo Almeida Jorge Luís Porsani Fernando Acácio Monteiro dos Santos Cassiano Antonio Bortolozo Universidade de Sã o Paulo Instituto de Astronomia Geofísica e Ciências Atmosféricas Departamento de Geofísica. Rua do Mat&atilde o Butant&atilde S&atilde o Paulo Brazil Universidade de Lisboa-idl Lisboa Portugal

This work uses 2D TEM (Transient Electromagnetic) modeling for a hydrogeological study in the Paraná sedimentary basin. The study area is located at the northern region of the state of S?o Paulo, Brazil, where groundwater is exploited from two aquifer systems: one sedimentary, shallow, and the other crystalline, deep. The interest in applying the TEM method in this area owes to the high exploitation rates of groundwater from the crystalline aquifer system for irrigation, which is triggering considerable seismic activity locally. This aquifer system is composed of fractured basalt within the Serra Geral Formation and is about 120 m deep. Eighty-six TEM soundings were acquired at this location, but in nine cases the data did not fit the modelled curve for 1D geoelectrical models due to the geological complexity of the area. This paper shows 2D geoelectrical modeling results based on the FDTD (Finite Differences in Time Domain) method to explain the lateral resistivity variation within the geological setting. A 2D model was generated for each sounding and compared with 1D inversion models as well as with direct information from wells. The results show some vertical variations of about 10 to 30 meters on the upper interface of the basalt layer from Serra Geral Formation. They are located at approximately 60 meters from the center of the soundings. The existence of these 2D structures in the subsurface can be related to the drainage system in the study area. The presence of these structures may indicate a connection between the shallow and deep aquifer systems, acting like a conduit that may contribute to the seismic activity reported.

关键词： Transient Electromagnetic (TEM) 2D Modeling Hydrogeophysics Paraná Basin Brazil

The Effects of Negative Values of Apparent Resistivity in TEM Surveys

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International Journal of Geosciences 2016年第10期7卷 1182-1190页

作者： Cassiano Antonio Bortolozo Julian David Realpe Campaña Marco Antonio Couto Junior Jorge Luis Porsani Fernando Acácio Monteiro dos Santos Departamento de Geofísica Instituto de Astronomia Geofísica e Ciências Atmosféricas (IAG) Universidade de Sao Paulo (USP) Sao Paulo Brasil Brazilian Geological Survey (CPRM) Belo Horizonte Brazil University of Lisboa Don Luiz Institute (IDL) Lisbon Portugal

The calculation of apparent resistivity in electrical methods is relatively simple and consolidated in the literature. Furthermore, in the case of DC methods, the apparent resistivity values are for the most part, intuitive and enable an initial interpretation of the results. On the other hand, in TEM method the apparent resistivity values are not very intuitive and interpretation based only on the apparent resistivity values cannot be done reasonably. In this way, this paper presents a discussion about the reasons and effects of the negatives values of apparent resistivity in TEM soundings. The main objective of this paper is to clarify the meanings of these negatives values and the possible effects in TEM inversion.

关键词： Transient Electromagnetic (TEM) Apparent Resistivity Negative Values

H-infinity control for networked control systems (NCS) with time-varying delays

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控制理论与应用（英文版） 2005年第2期3卷 157-162页

作者： Hong ZHAO Min WU Guoping LIU Jinhua SHE School of Information Science and Engineering Central South University Changsha Hunan 410083 China Laboratory of Complex Systems and Intelligence Science Chinese Academy of Sciences Beijing 100080 China School of Electronics University of Glamorgan Pontypridd CF37 IDL UK School of Bionics Tokyo University of Technology Tokyo 192-0982Japan

This paper discusses H-infinity state feedback control for a networked control system with time-varying delays. Based on the flee-weighing matrix method, a dehy-dependent stability criterion satisfying a prescribed H-infinity norm bound is presented for an NCS with unknown, time-varying and bounded delays. And then, the criterion is transformed into sufficient conditions based on linear matrix inequalities for H-infinity control. The conditions thus obtained are also used to design an H-infinity state feedback controller. This design method is further extended to solve the design problem of robust H-infinity state feedback control. A numerical example demonstrates the validity of the method.

关键词： H-infinity control Networked control system (NCS) Time-varying delay State feedback Linear matrix inequality(LMI) Robust control