Ship Motions Close to a Bank or in a Narrow Canal

http://deepblue.lib.umich.edu/bitstream/2027.42/96617/1/39015087358662.pd

SIMULATION OF ELECTRIC AND HYBRID VEHICLES IN A VEHICLE SIMULATOR BASED ON A DETAILED PHYSICAL MODEL, FOR THE PURPOSE OF HMI EVALUATION

In this article, we propose a software solution to study HMI of electric and hybrid electric vehicles in vehicle simulators. We will start with the description of a development process of a physical model for HEV simulation in IGNITE software and equation-based language Modelica. A short introduction to the language, its possibilities, and explanation, why it is more suitable for the development of such models (vehicle powertrain), are presented in the first part of the article. A fusion mechanism of the physical engine with the model by means of FMU (Functional Mock-up Interface) is also described in this part The second part is dedicated to the description of the model constructed in third party software IGNITE. This model has a detailed calculation of energy consumption and energy flow based on the selected control strategy. The last part of the article describes a possible experiment methodology

Efficient Two-dimensional Subrecoil Raman Cooling of Atoms in a Tripod Configuration

We present an efficient method for subrecoil cooling of neutral atoms by applying Raman cooling in 2D to a four-level tripod-system. The atoms can be cooled simultaneously in two directions using only three laser beams. We describe the cooling process with a simple model showing that the momentum distribution can be rapidly narrowed to velocity spread down to $0.1v_\text{rec}$, corresponding to effective temperature equal to $0.01T_\text{rec}$. This method opens new possibilities for cooling of neutral atoms.Comment: 6 pages, 3 figure

Influence of Chemical Composition of Lifting Equipment Material On Their Performance

The presented study refers to the use of load-handling chain slings. The theoretical calculation shows the high reliability and virtually trouble-free operation of a metal welded circuit, but the study conducted by the authors suggests otherwise, the use of chain hangers can adversely affect the manufacturing and testing stage without proper input control of the chemical composition of the material used. The introduction describes the relevance of the work and a brief historical background of the existence of this problem, as well as the terms used in the work. The next part presents a methodology for calculating the load and reliability; the quantitative values of reliability indicators, methods for obtaining them and a methodology for calculating reliability by the criterion of strength are shown. The scheme of operation of the emission spectrometer and the technology of its application are presented. In the conclusions, there are practical recommendations and coincidence of the results of the study with known facts from the materials science

Influence of Chemical Composition of Lifting Equipment Material On Their Performance

The presented study refers to the use of load-handling chain slings. The theoretical calculation shows the high reliability and virtually trouble-free operation of a metal welded circuit, but the study conducted by the authors suggests otherwise, the use of chain hangers can adversely affect the manufacturing and testing stage without proper input control of the chemical composition of the material used. The introduction describes the relevance of the work and a brief historical background of the existence of this problem, as well as the terms used in the work. The next part presents a methodology for calculating the load and reliability; the quantitative values of reliability indicators, methods for obtaining them and a methodology for calculating reliability by the criterion of strength are shown. The scheme of operation of the emission spectrometer and the technology of its application are presented. In the conclusions, there are practical recommendations and coincidence of the results of the study with known facts from the materials science

Differential regulation of non-protein coding RNAs from Prader-Willi Syndrome locus

Prader-Willi Syndrome (PWS) is a neurogenetic disorder caused by the deletion of imprinted genes on the paternally inherited human chromosome 15q11-q13. This locus harbours a long non-protein-coding RNA (U-UBE3A-ATS) that contains six intron-encoded snoRNAs, including the SNORD116 and SNORD115 repetitive clusters. The 3′-region of U-UBE3A-ATS is transcribed in the cis-antisense direction to the ubiquitin-protein ligase E3A (UBE3A) gene. Deletion of the SNORD116 region causes key characteristics of PWS. There are few indications that SNORD115 might regulate serotonin receptor (5HT2C) pre-mRNA processing. Here we performed quantitative real-time expression analyses of RNAs from the PWS locus across 20 human tissues and combined it with deep-sequencing data derived from Cap Analysis of Gene Expression (CAGE-seq) libraries. We found that the expression profiles of SNORD64, SNORD107, SNORD108 and SNORD116 are similar across analyzed tissues and correlate well with SNORD116 embedded U-UBE3A-ATS exons (IPW116). Notable differences in expressions between the aforementioned RNAs and SNORD115 together with the host IPW115 and UBE3A cis-antisense exons were observed. CAGE-seq analysis revealed the presence of potential transcriptional start sites originated from the U-UBE3A-ATS spanning region. Our findings indicate novel aspects for the expression regulation in the PWS locus

Robust two-dimensional subrecoil Raman cooling by adiabatic transfer in a tripod atomic system

We demonstrate two-dimensional robust Raman cooling in a four-level tripod system, in which velocity-selective population transfer is achieved by a STIRAP pulse. In contrast to basic 2D Raman cooling with square envelope pulses [Phys. Rev. A 83, 023407 (2011)], the technique presented here allows for a wide variation in the pulse duration and amplitude once the adiabaticity criterion is satisfied. An efficient population transfer together with attaining of a narrow spread of the resonant-velocity group leads to the narrowing of the velocity-distribution spread down to $0.1v_\mathrm{rec}$, corresponding to an effective temperature equal to $0.01 T_\mathrm{rec}$. This robust method opens new possibilities for cooling of neutral atoms.Comment: 8 pages, 3 figure