@article{Hild2016,

title = {Toward 4D mechanical correlation},

author = {Fran\c{c}ois Hild and Amine Bouterf and Ludovic Chamoin and Hugo Leclerc and Florent Mathieu and Jan Neggers and Florent Pled and Zvonimir Tomi\v{c}evi\'{c} and St\'{e}phane Roux},

url = {https://amses-journal.springeropen.com/track/pdf/10.1186/s40323-016-0070-z},

doi = {10.1186/s40323-016-0070-z},

year  = {2016},

date = {2016-12-01},

journal = {Advanced Modeling and Simulation in Engineering Sciences},

volume = {3},

number = {17},

abstract = {Background:

The goal of the present study is to illustrate the full integration of sensor and imaging data into numerical procedures for the purpose of identification of constitutive laws and their validation. The feasibility of such approaches is proven in the context of in situ tests monitored by tomography. The bridging tool consists of spatiotemporal (i.e., 4D) analyses with dedicated (integrated) correlation algorithms.



Methods:

A tensile test on nodular graphite cast iron sample is performed within a lab tomograph. The reconstructed volumes are registered via integrated digital volume correlation (DVC) that incorporates a finite element modeling of the test, thereby performing a mechanical integration in 4D registration of a series of 3D images. In the present case a non-intrusive procedure is developed in which the 4D sensitivity fields are obtained with a commercial finite element code, allowing for a large versatility in meshing and incorporation of complex constitutive laws. Convergence studies can thus be performed in which the quality of the discretization is controlled both for the simulation and the registration.



Results:

Incremental DVC analyses are carried out with the scans acquired during the in situ mechanical test. For DVC, the mesh size results from a compromise between measurement uncertainties and its spatial resolution. Conversely, a numerically good mesh may reveal too fine for the considered material microstructure. With the integrated framework proposed herein, 4D registrations can be performed and missing boundary conditions of the reference state as well as mechanical parameters of an elastoplastic constitutive law are determined in fair condition both for DVC and simulation.

},

keywords = {Tomographe},

pubstate = {published},

tppubtype = {article}

}

@article{Liu2016,

title = {Quantitative Study of Interface/Interphase in Epoxy/Graphene-based Nanocomposites by Combining STEM and EELS},

author = {Yu Liu and Ann-Lenaig Hamon and Paul Haghi-Ashtiani and Thomas Reiss and Benhui Fan and Delong He and Jinbo Bai},

url = {https://hal.archives-ouvertes.fr/hal-01835458/file/Quantitative%20Study%20of%20InterfaceInterphase%20in%20EpoxyGraphene-based%20Nanocomposites%20by%20Combining%20STEM%20and%20EELS.pdf},

doi = {10.1021/acsami.6b12915},

year  = {2016},

date = {2016-11-18},

urldate = {2016-11-18},

journal = {ACS Appl. Mater. Interfaces},

abstract = {A quantitative study of the interphase and interface of graphene nanoplatelets (GNPs)/epoxy and graphene oxide (GO)/epoxy was carried out by combining scanning transmission electron microscopy (STEM) and electron energy-loss spectroscopy (EELS). The interphase regions between GNPs and epoxy matrix were clearly identified by the discrepancy of the plasmon peak positions in the low energy-loss spectra due to different valence electron densities. The spectrum acquisitions were carried out along lines across the interface. An interphase thickness of 13 and 12.5 nm was measured for GNPs/epoxy and GO/epoxy, respectively. The density of the GNPs/epoxy interphase was 2.89% higher than that of the epoxy matrix. However, the density of the GO/epoxy interphase was 1.37% lower than that of the epoxy matrix. The interphase layer thickness measured in this work is in good agreement with the transition layer theory, which proposed an area with modulus linearly varying across a finite width. The results provide an insight into the interphase for carbon-based polymer composites that can help to design the functionalization of nanofillers to improve the composite properties.},

keywords = {Helios, Titan},

pubstate = {published},

tppubtype = {article}

}

@article{Olivier2016,

title = {Early-Age Self-Healing of Cementitious Materials Containing Ground   Granulated Blast-Furnace Slag under Water Curing },

author = {Kelly Olivier and Aveline Darquennes and Farid Benboudjema and Richard Gagn\'{e}

},

url = {https://www.jstage.jst.go.jp/article/jact/14/11/14_717/_pdf},

doi = {10.3151/jact.14.717},

year  = {2016},

date = {2016-10-30},

journal = {Journal of Advanced Concrete Technology},

volume = {14},

pages = {717-727},

abstract = {In order to limit the release of CO2 emissions produced by cement manufacturing, clinker, the major cement component, is often partially replaced by mineral additions such as Ground Granulated Blast-Furnace Slag (GGBFS). Civil-engineering structures made with GGBFS cement can however present cracking at early age (\< 28 days) due to re-strained shrinkage that significantly affects their durability and their material transport properties. Self-healing may limit these phenomena. In order to study and quantify self-healing kinetics, X-ray tomography tests for mortars with different GGBFS contents are performed. Results show that X-ray tomography provides valuable information inside the specimens: crack openings and healing products distribution. It is also shown that self-healing evolves rapidly during the first weeks of water curing and it is more important for cementitious materials containing GGBFS. This is due to their lower early age hydration degree allowing an ongoing hydration after cracking and the formation of supplementary C-S-H along the crack.},

keywords = {Tomographe},

pubstate = {published},

tppubtype = {article}

}

@article{Tapie2016,

title = {Adaptation Measurement of CAD/CAM Dental Crowns with X-Ray Micro-CT: Metrological Chain Standardization and 3D Gap Size Distribution},

author = {Laurent Tapie and Norman Chiche and Philippe Boitelle and Pascal Morenton and Jean-Pierre Attal and Nicolas Schmitt and Elsa Vennat},

url = {downloads.hindawi.com/journals/amse/2016/7963928.pdf},

doi = {http://dx.doi.org/10.1155/2016/7963928},

year  = {2016},

date = {2016-10-17},

journal = {Advances in Materials Science and Engineering},

volume = {2016},

abstract = {Computer-Aided Design and Manufacturing systems are increasingly used to produce dental prostheses, but the parts produced suffer from a lack of evaluation, especially concerning the internal gap of the final assembly, that is, the space between the prepared tooth and the prosthesis. X-ray micro-Computed Tomography (micro-CT) is a noninvasive imaging technique enabling the internal inspection of the assembly. It has proved to be an efficient tool for measuring the gap. In this study, a critical review of the protocols using micro-CT to quantify the gap is proposed as an introduction to a new protocol aimed at minimizing errors and enabling comparison between CAD/CAM systems. To compare different systems, a standardized protocol is proposed including two reference geometries. Micro-CT is used to acquire the reference geometries. A new 3D method is then proposed and a new indicator is defined (Gap Size Distribution (GSD)). In addition, the usual 2D measurements are described and discussed. The 3D gap measurement method proposed can be used in clinical case geometries and has the considerable advantage of minimizing the data processing steps before performing the measurements.},

keywords = {Tomographe},

pubstate = {published},

tppubtype = {article}

}

@article{Zhao2016,

title = {*Enhanced dielectric performance of polyvinylidene fluoride composites with an all-carbon hybrid architecture: vertically aligned carbon nanotube arrays on graphite nanoplatelets},

author = {Hang Zhao and Minhao Yang and Delong He and Jinbo Bai},

doi = {10.1039/c6tc02386j},

year  = {2016},

date = {2016-10-14},

journal = {JOURNAL OF MATERIALS CHEMISTRY C},

volume = {4},

number = {38},

pages = {8911-8919},

abstract = {10.1039/c6tc02386j},

keywords = {Helios, Titan},

pubstate = {published},

tppubtype = {article}

}

@article{Tomi\v{c}evi\'{c}2016,

title = {Characterization of the nonlinear behavior of nodular graphite cast iron via inverse identification\textendashAnalysis of uniaxial tests},

author = {Zvonimir Tomi\v{c}evi\'{c} and Jano\v{s} Kodvanj and Fran\c{c}ois Hild},

url = {https://hal.archives-ouvertes.fr/hal-01303532/document},

doi = {10.1016/j.euromechsol.2016.02.010},

year  = {2016},

date = {2016-09-01},

journal = {European Journal of Mechanics - A/Solids},

volume = {59},

pages = {140\textendash154},

abstract = {The aim of this work is to estimate the parameters of elastoplastic and damage laws for nodular graphite cast iron from a cyclic uniaxial test on a dog-bone sample. The paper focuses on the identification of material parameters coupling finite element models and full-field measurements. The gap between the measured and simulated data is used to estimate the quality of the proposed constitutive postulates.



Last, a cyclic uniaxial experiment is carried out in a lab tomograph to reveal the damage micromechanism. Digital volume correlation is used to measure displacement fields in the bulk of the sample. The correlation residuals are used to detect the damage mechanism occurring in the heterogeneous microstructure of the material.},

keywords = {Tomographe},

pubstate = {published},

tppubtype = {article}

}

@article{Ciria2016,

title = {Mechanical degradation under hydrogen of yttrium doped barium zirconate electrolyte material prepared with NiO additive},

author = {D. Ciria and M. Ben Hassine and M. Jim\'{e}nez-Melendo and A. Iakovleva and P. Haghi-Ashtiani and V. Aubin and G. Dezanneau},

doi = {10.1016/j.jpowsour.2016.05.001},

year  = {2016},

date = {2016-07-30},

journal = {Journal of Power Sources},

volume = {321},

pages = {226\textendash232},

abstract = {Recently, a novel process was presented to fabricate dense yttrium-doped barium zirconate electrolytes with high proton conductivity. This process was based on the use of a NiO additive during reactive sintering. We show here that materials made from this process present a fast degradation of mechanical properties when put in hydrogen-rich conditions, while material made from conventional sintering without NiO aid remains intact in the same conditions. The fast degradation of samples made from reactive sintering, leading to sample failure under highly compressive conditions, is due to the reduction of NiO nanoparticles at grain boundaries as shown from structural and chemical analyses using Transmission Electron Microscopy. By the present study, we alert about the potential risk of cell failure due to this mechanical degradation.},

keywords = {Titan},

pubstate = {published},

tppubtype = {article}

}

@article{Taillandier-Thomas2016,

title = {A soft route toward 4D Tomography},

author = {Thibault Taillandier-Thomas and St\'{e}phane Roux and Fran\c{c}ois Hild},

editor = {American Physical Society},

url = {https://hal.archives-ouvertes.fr/hal-01383970/file/PRL2016-ccsd.pdf},

doi = {10.1103/PhysRevLett.117.025501},

year  = {2016},

date = {2016-07-06},

urldate = {2016-07-06},

journal = {Phys. Rev. Lett.},

volume = {117},

issue = {2},

pages = {025501},

abstract = {Based on the assumption that the time evolution of a sample observed by computed tomography requires many less parameters than the definition of the microstructure itself, it is proposed to reconstruct these changes based on the initial state (using computed tomography) and very few radiographs acquired at fixed intervals of time. This Letter presents a proof of concept that for a fatigue cracked sample its kinematics can be tracked from no more than two radiographs in situations where a complete 3D view would require several hundreds of radiographs. This 2 order of magnitude gain opens the way to a “computed” 4D tomography, which complements the recent progress achieved in fast or ultrafast computed tomography, which is based on beam brightness, detector sensitivity, and signal acquisition technologies.},

keywords = {Tomographe},

pubstate = {published},

tppubtype = {article}

}

@article{Ma2016b,

title = {*Control of product nature and morphology by adjusting the hydrogen content in a continuous chemical vapor deposition process for carbon nanotube synthesis},

author = {Yang Ma and Anthony B. Dichiara and Delong He and Laurent Zimmer and Jinbo Bai},

doi = {10.1016/j.carbon.2016.05.060},

issn = {0008-6223},

year  = {2016},

date = {2016-05-27},

journal = {Carbon},

volume = {107},

pages = {171 - 179},

abstract = {Floating catalyst chemical vapor deposition (FCCVD) is commonly considered as one of the most attractive processes for the production of carbon nanotubes (CNTs). Understanding the phenomena occurring during the FCCVD synthesis of CNTs is critical to improve the process selectivity and scalability. The present work correlates information on gas chemistry and structural characteristics of the carbonaceous products, and show how both are strongly related to the hydrogen content in the reactor. Hydrogen plays different roles in the CNT growth process whose contributions depend on the synthesis conditions. Its presence induces an augmentation in carbon supply by promoting the decomposition of hydrocarbon vapors into more reactive byproducts, and by serving as an activation agent for the dissociation of physisorbed hydrocarbons on the surface of catalyst particles. However, high hydrogen content can induce catalytic hydrogenation of carbon and lead to surface modification of CNTs. Hydrogen also interferes with the decomposition of catalytic precursors, thus influencing the size and availability of catalyst nanoparticles. As a result, the mean and core diameters, crystallinity of the graphene walls, and length of CNTs are greatly influenced by the hydrogen flow, which offers the possibility to tune the CNT properties in a very simple, yet efficient way.},

keywords = {Titan},

pubstate = {published},

tppubtype = {article}

}

@article{Guerret2016,

title = {Investigations of Photophysical and Electrofluorochromic Properties of Gold Nanoparticles Functionalized by a Luminescent Electroactive Complex},

author = {Laetitia Guerret and Jean-Fr\'{e}d\'{e}ric Audibert and Anne D\'{e}barre and Marc Lepeltier and Paul Haghi-Ashtiani and Galina Dubacheva and Fabien Miomandre},

url = {http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.5b09865?journalCode=jpccck},

doi = {10.1021/acs.jpcc.5b09865},

year  = {2016},

date = {2016-01-06},

journal = {J. Phys. Chem. C},

keywords = {Titan},

pubstate = {published},

tppubtype = {article}

}

@article{Gaur2016,

title = {Surface versus internal fatigue crack initiation in steel: Influence of mean stress},

author = {Vidit Gaur and V\'{e}ronique Doquet and Emmanuel Persent and Charles Mareau and El\'{e}onore Roguet and Jean Kittel},

url = {http://www.sciencedirect.com/science/article/pii/S0142112315002807},

doi = {10.1016/j.ijfatigue.2015.08.028},

year  = {2016},

date = {2016-01-01},

journal = {International Journal of Fatigue},

volume = {82},

number = {3},

pages = {437\textendash448},

abstract = {Stress-controlled fatigue tests were run at different R   ratios (=σmin/σmax=σmin/σmax) up to at most 3 million cycles on a 2.5%Cr\textendash1%Mo steel (ASTM A182 F22) used in riser tubes connectors for offshore oil drilling. The fatigue lives, as well as the slope of the S\textendashN curves were found to decrease with increasing R and the endurance limit to follow Gerber’s parabola. Surface crack initiation without any defect involved, was most often observed for R = −1, −0.5 and 0, while an R ratio of 0.25 triggered crack initiation from either surface or internal pores or chemically inhomogeneous areas, leading, in the latter case, to fish-eye patterns for relatively low numbers of cycles. A further increase in R ratio to 0.5 promoted only defect-initiated surface cracks, while no fatigue fracture was observed within 10 million cycles above R=0.6R=0.6. These transitions in crack initiation mode are discussed based on X-ray diffraction analyses of residual stresses, elastic\textendashplastic F.E. computations on a unit cell model containing a pore and some fracture mechanics analyses, with a particular attention to environmental effects.},

keywords = {Helios},

pubstate = {published},

tppubtype = {article}

}

@article{Gaslain2016,

title = {The role of intergranular chromium carbides on intergranular oxidation of nickel based alloys in pressurized water reactors primary water},

author = {Fabrice Gaslain and Hong Thai Le and Cecilie Duhamel and Catherine Guerre and Pierre Laghoutaris},

url = {https://hal-mines-paristech.archives-ouvertes.fr/hal-01292423/document},

doi = {10.1088/1757-899X/109/1/012004},

year  = {2016},

date = {2016-01-01},

journal = {IOP Conference Series: Materials Science and Engineering},

volume = {109},

number = {1},

pages = {012004},

abstract = {Alloy 600 is used in pressurized water reactors (PWRs) but is susceptible to primary water stress corrosion cracking (PWSCC). Intergranular chromium carbides have been found beneficial to reduce PWSCC. Focussed ion beam coupled with scanning electron microscopy (FIB/SEM) 3D tomography has been used to reconstruct the morphology of grain boundary oxide penetrations and their interaction with intergranular Cr carbides in Alloy 600 subjected to a PWR environment. In presence of intergranular Cr carbides, the intergranular oxide penetrations are less deep but larger than without carbide. However, the intergranular oxide volumes normalized by the grain boundary length for both samples are similar, which suggest that intergranular oxidation growth rate is not affected by carbides. Analytical transmission electron microscopy (TEM) shows that the intergranular oxide consists mainly in a spinel-type oxide containing nickel and chromium, except in the vicinity of Cr carbides where Cr 2 O 3 was evidenced. The formation of chromium oxide may explain the lower intergranular oxide depth observed in grain boundaries containing Cr carbides.},

keywords = {Helios},

pubstate = {published},

tppubtype = {article}

}

@article{Okyay2015,

title = {Soot aggregate complex morphology : 3D geometry reconstruction by SEM tomography applied on soot issued from propane combustion},

author = { Gizem Okyay and Eva H\'{e}ripr\'{e} and Thomas Reiss and Paul Haghi-Ashtiani and Thierry Auger and Franck Enguehard},

url = {http://www.sciencedirect.com/science/article/pii/S0021850215001846},

doi = {10.1016/j.jaerosci.2015.11.009},

year  = {2015},

date = {2015-12-09},

journal = {Journal of Aerosol Science},

keywords = {Helios},

pubstate = {published},

tppubtype = {article}

}

@article{Mercier2015b,

title = { Spark Plasma Sintering Co-Sintered Monolithic Transformers for Power Electronics },

author = {Adrien Mercier and Karim Zehani and G\'{e}rard Chaplier and Alexandre Pasko and Vincent Loyau and Fr\'{e}d\'{e}ric Mazaleyrat},

editor = {IEEE},

url = {https://hal.archives-ouvertes.fr/hal-01340090/document},

doi = {10.1109/TMAG.2015.2504876},

year  = {2015},

date = {2015-12-03},

journal = {IEEE Transactions on Magnetics},

volume = {52},

number = {5},

pages = {1-4},

abstract = {Power integration is a key issue to reduce the volume and weight of electronic devices in power applications. However, transformers produced using classical planar assembly are limited in design. Spark plasma sintering (SPS) is a relatively new technology to produce multi-material compact systems with higher density using lower sintering temperature. The purpose of this paper is to manufacture cubic-centimeter-sized transformers for the high-frequency application using SPS. The prototype presented in this paper is composed of two spiral copper coils separated by an insulated layer and encapsulated in ferrite powder. The assembly is then co-sintered by SPS. The magnetic material used for the transformers is a nickel-zinc-based ferrite, with copper substitution to allow sintering at low temperatures. The low conductivity of this mixed ferrite ensures operation in the frequency range of 1-20 MHz of our final system. Computed tomography scanning has been used to optimize the design of the co-sintered structures. The effects of the composition of the ferrite and the sintering temperature on the transformation ratio are discussed. It is shown that a ferrite with very low conductivity is required to ensure galvanic insulation, as there is a direct contact between the copper spirals and the magnetic parts.},

keywords = {Tomographe},

pubstate = {published},

tppubtype = {article}

}

@article{Fan2015,

title = { Influence of Inter Structure of Two-Phase Hybrid Fillers BaTiO3 and Carbon Nanotubes on the Dielectric Properties of Polyvinylidene Fluoride Matrix Composites},

author = {Benhui Fan and Diana Salem and Paul Haghi-Ashtiani and Jinbo Bai},

editor = {American Scientific Publishers},

url = {http://www.ingentaconnect.com/content/asp/jap/2015/00000004/00000004/art00015?crawler=true\&mimetype=application/pdf},

doi = {10.1166/jap.2015.1207},

year  = {2015},

date = {2015-12-01},

journal = {Journal of Advanced Physics},

volume = {4},

number = {4},

pages = {388-392},

abstract = {Two-phase hybrid fillers of BaTiO3(BT) and carbon nanotube (CNT) with three inter structures but same volume ratios were loaded into polyvinylidene fluoride (PVDF) matrix. Three inter structures of two-phase hybrid fillers were simple mechanical mixing, CNT growing on the surface of BT particles by chemical vapor deposition (CVD) and BT coating on the CNT surface by hydrothermal, respectively. An obvious diversity of dielectric properties and percolation phenomenon for the three composites was observed when with the same fillers volume fraction. The difference among inter structures of the two-phase hybrid fillers and interfaces would result in the diversity of the dielectric properties of composites. },

keywords = {Titan},

pubstate = {published},

tppubtype = {article}

}

@article{Thibeaux2015,

title = {Using X-ray computed tomography for quantification of cell proliferation within a perfusion bioreactor},

author = {Roman Thibeaux and Eric Perrin and Benjamin Smaniotto and Herv\'{e} Duval and Elsa Vennat and David Neron and Bertrand David},

editor = {Taylor \& Francis},

url = {http://matmeca.cnrs.fr/wp-content/uploads/2015/09/Thibeaux_CMBBE_15.pdf},

doi = {10.1080/10255842.2015.1069568},

year  = {2015},

date = {2015-07-28},

journal = {Computer Methods in Biomechanics and Biomedical Engineering},

volume = {18},

number = {S1},

pages = {2072-2073},

keywords = {Tomographe},

pubstate = {published},

tppubtype = {article}

}

@article{Daghia2015,

title = {The Climbing Drum Peel Test: An alternative to the Double Cantilever Beam for the determination of fracture toughness of monolithic laminates},

author = {Federica Daghia and Christophe Cluzel},

url = {http://matmeca.cnrs.fr/wp-content/uploads/2015/09/Daghia_CompPartA_15.pdf},

year  = {2015},

date = {2015-07-17},

journal = {Composites: Part A},

volume = {78},

pages = {70-83},

abstract = {The experimental determination of the fracture toughness of inter-ply interfaces in monolithic composite specimens is far from trivial: even in standard test methods such as the Double Cantilever Beam (DCB), some precautions must be taken in the choice of the test configurations and in the post-treatment of the experimental results. Furthermore, non standard measurements such as the crack tip position during propagation are generally required. In this paper, we investigate an alternative test configuration, the Climbing Drum Peel (CDP) test, classically used in the ‘adhesives’ community. The adaptation of the CDP specimen configurations to the testing of monolithic composites is discussed and a systematic comparison is carried out between the CDP and the DCB tests in terms of global and local indicators of the crack propagation behavior.},

keywords = {Tomographe},

pubstate = {published},

tppubtype = {article}

}

@article{Bogicevic2015,

title = { Morphogenesis mechanisms in the solvothermal synthesis of BaTiO3 from titanate nanorods and nanotubes},

author = {Christine Bogicevic and Gentien Thorner and Fabienne Karolak and Paul Haghi-Ashtiani and Jean-Michel Kiat},

url = {http://www.ncbi.nlm.nih.gov/pubmed/25630867},

doi = {10.1039/c4nr06266c},

year  = {2015},

date = {2015-02-28},

journal = {Nanoscale},

volume = {7},

number = {8},

pages = {3594-3603},

abstract = {A rich variety of single crystalline BaTiO3 (BT) nanostructures have been synthesized by two different routes using titanate nanorods and nanotubes as precursors. Free standing, mixed or agglomerated nanotori, solid or hollow nanospheres and nanocubes were obtained. A careful analysis of the shape evolution of the resulting BT nano-objects obtained with both types of precursors and different parameters (precursor composition and shape, temperature, Ba/Ti molar ratio) allowed an improved understanding of the nanostructure formation. The morphogenesis models at play such as Ostwald ripening and the Kirkendall effect have been identified. Other mechanisms hereafter called the self and merging rebuilding processes and a tentative Turing-reaction-diffusion-model are proposed to explain the formation of these obtained nanoparticles.},

keywords = {Titan},

pubstate = {published},

tppubtype = {article}

}

@article{Hild2015,

title = {Damage Measurements via DIC: From Physical to Mechanical Damage },

author = { Fran\c{c}ois Hild and Amine Bouterf and St\'{e}phane Roux},

url = {https://hal.archives-ouvertes.fr/hal-01166736/document},

doi = {10.1007/s10704-015-0004-7},

year  = {2015},

date = {2015-01-15},

journal = {International Journal of Fracture},

volume = {191},

number = {1-2},

pages = {77-105},

abstract = {The present paper is devoted to the measurement of damage by resorting to image correlation techniques. This full-field measurement procedure gives access to 2D and 3D displacements that can be utilized to analyze damage mechanisms, to estimate damage fields, and to determine material parameters of damage growth laws. Different features associated with image correlation are addressed in the context of continuum damage mechanics (CDM). Applications concerning damage detection, damage quantification and damage model validation are presented.},

note = {Special Invited Article Celebrating IJF at 50},

keywords = {Tomographe},

pubstate = {published},

tppubtype = {article}

}