Separator development for a heat sterilizable battery

Coating procedure for tape separator of heat sterilizable batter

Separator development for a heat sterilizable battery Quarterly report, 1 Jan. - 31 Mar. 1968

Dip coating method for manufacturing sterilizable battery tape separator

Radiative Symmetriebrechung in Links-Rechts Symmetrischen Modellen mit einer Shiftsymmetrie an der Planckskala

Under the assumption that the Standard Model is valid up to the Planck scale ΛPl ~1019 GeV, the quartic Higgs coupling exhibits near ΛPl a value remarkably close to zero. It is tempting to consider this feature as a manifestation of boundary conditions imposed by the embedding theory of gravity. In a stringy context this observation has recently been interpreted in terms of the scalar potential being invariant under a constant shift of the Higgs _eld at the Planck scale. In general, such boundary conditions are of special interest in the study of radiatively induced symmetry breaking in models with classical conformal invariance, as the Planck scale is connected to the breaking scale via the running of the scalar couplings. In this thesis, the Coleman-Weinberg symmetry breaking of the minimal classically conformally invariant left-right (LR) symmetric model is reconsidered in the presence of a shift symmetry which is generalized to the case of the LR symmetry. Within the restricted parameter space imposed by the shift symmetry, a large hierarchy between the LR breaking scale and the Planck scale can be generated. In order to stabalize the electroweak-scale as well, the model is extended by two fermionic representations, which contribute to the running of the scalar couplings

Separator development for a heat sterilizable battery Quarterly report, 1 Apr. - 30 Jun. 1968

Flame absorption spectroscopic analysis of support tape

Separator development for a heat sterilizable battery Quarterly report, Oct. 1 - Dec. 31, 1967

Zirconium oxide loadings and coating methods varied to improve separators for heat sterilizable batter

The bisymplectomorphism group of a bounded symmetric domain

An Hermitian bounded symmetric domain in a complex vector space, given in its circled realization, is endowed with two natural symplectic forms: the flat form and the hyperbolic form. In a similar way, the ambient vector space is also endowed with two natural symplectic forms: the Fubini-Study form and the flat form. It has been shown in arXiv:math.DG/0603141 that there exists a diffeomorphism from the domain to the ambient vector space which puts in correspondence the above pair of forms. This phenomenon is called symplectic duality for Hermitian non compact symmetric spaces. In this article, we first give a different and simpler proof of this fact. Then, in order to measure the non uniqueness of this symplectic duality map, we determine the group of bisymplectomorphisms of a bounded symmetric domain, that is, the group of diffeomorphisms which preserve simultaneously the hyperbolic and the flat symplectic form. This group is the direct product of the compact Lie group of linear automorphisms with an infinite-dimensional Abelian group. This result appears as a kind of Schwarz lemma.Comment: 19 pages. Version 2: minor correction

Saddle index properties, singular topology, and its relation to thermodynamical singularities for a phi^4 mean field model

We investigate the potential energy surface of a phi^4 model with infinite range interactions. All stationary points can be uniquely characterized by three real numbers $\alpha_+, alpha_0, alpha_- with alpha_+ + alpha_0 + alpha_- = 1, provided that the interaction strength mu is smaller than a critical value. The saddle index n_s is equal to alpha_0 and its distribution function has a maximum at n_s^max = 1/3. The density p(e) of stationary points with energy per particle e, as well as the Euler characteristic chi(e), are singular at a critical energy e_c(mu), if the external field H is zero. However, e_c(mu) \neq upsilon_c(mu), where upsilon_c(mu) is the mean potential energy per particle at the thermodynamic phase transition point T_c. This proves that previous claims that the topological and thermodynamic transition points coincide is not valid, in general. Both types of singularities disappear for H \neq 0. The average saddle index bar{n}_s as function of e decreases monotonically with e and vanishes at the ground state energy, only. In contrast, the saddle index n_s as function of the average energy bar{e}(n_s) is given by n_s(bar{e}) = 1+4bar{e} (for H=0) that vanishes at bar{e} = -1/4 > upsilon_0, the ground state energy.Comment: 9 PR pages, 6 figure

GEOMETRY AND INFORMATION FOR THE PRESERVATION OF A ROMAN MOSAIC THROUGH A HBIM APPROACH

Abstract. The archaeological site is a mine of data and information that helps to deepen the knowledge of its origin, history, and structure. This virtuous approach becomes even more effective when these data, properly processed and structured, form the basis for a project of conservation and enhancement of the cultural asset.The Roman mosaics dug in Castiglione delle Stiviere in 1995 represent an interesting case in which all the archaeological information, made available by the Superintendence, was used through an HBIM (Historical Building Information Modeling) approach for the conservation project. The Stratigraphic Units (US) of the findings have identified the strategy for the geometric and informative modeling of the BIM (Building Information Modeling) model and have also been exploited in the design phase for the project of the new roof structure and especially for the cost analysis. The structuring of the data by stratigraphic units was also used in the drafting of the preventive and planned conservation, necessary to enhance and prolong the state of good health of the property.This work has been developed in the internship activity within a training course on HBIM, in collaboration with the Diocese of Mantua, owner of the property

On embeddings of almost complex manifolds in almost complex Euclidean spaces

We prove that any compact almost complex manifold $(M^{2m}, J)$ of real dimension $2m$ admits a pseudo-holomorphic embedding in $(R^{4m+2}, ilde{J})$ for a suitable positive almost complex structure $ilde J$. Moreover, we give a necessary and sufficient condition, expressed in terms of the Segre class $s_m(M, J)$, for the existence of an embedding or an immersion in $(R^{4m}, ilde{J})$. We also discuss the pseudo-holomorphic embeddings of an almost complex 4-manifold in $(R^6, ilde J)$