65 research outputs found
Synthesis of novel thieno[3,2-b]thienobis(silolothiophene) based low bandgap polymers for organic photovoltaics
New Fused Bis-Thienobenzothienothiophene Copolymers and Their Use in Organic Solar Cells and Transistors
The identification of problems in the rubber compound production process using selected methods and quality management tools
The paper presents theoretical basis for problem identification related to the production of rubber mixture in which they were characterized methods and tools for quality management. The main aim of the paper is use of selected methods and tools to identify problems during the production of rubber mixture in the enterprise. Based on information and observation were identified problems occurring in individual stages the actual production process of rubber compound. The aim were gathered information the process, have been applied tools in the form of a control sheet and block diagram. To illustrate and present particular causes and effects of defects it was made Ishikawa diagram, which it was the starting point for the analysis FMEA to determine the level of risk and to develop preventive actions. Based on the collected data, identification of the most common problems using the Pareto-Lorenzo diagram has been made
A new anti-neuronal antibody in a case of paraneoplastic limbic encephalitis associated with breast cancer
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Adult Toxocara canis encephalitis.
A 48-year-old patient with Toxocara canis infection developed severe ataxia, rigor and neuropsychological disturbances. An aetiology was proven by an indirect immunofluorescence test. CT and MRI revealed both diffuse and circumscribed white matter lesions. Angiography showed multiple occlusion of branches of the middle cerebral artery. Anthelminthic treatment was beneficial in the initial stage of the disease, but had no effect on progression of CNS symptoms. Immunosuppressive therapy with prednisolone and azathioprine yielded partial recovery and stabilisation of the patient
Design of Semiconducting Indacenodithiophene Polymers for High Performance Transistors and Solar Cells
Benzotrithiophene Copolymers: Influence of Molecular Packing and Energy Levels on Charge Carrier Mobility
The
planar benzotrithiophene unit (<b>BTT</b>) was incorporated
into four different donor polymers, and by systematically changing
the nature and positioning of the solubilizing alkyl side chains along
the conjugated backbone, the polymersâ frontier energy levels
and optoelectronic properties were controlled. Reducing the steric
hindrance along the polymer backbone lead to strong interchain aggregation
and highly ordered thin films, achieving hole mobilities of 0.04 cm<sup>2</sup>/(V s) in organic thin film transistors. In an attempt to
increase the polymerâs processability and reduce chain aggregation,
steric hindrance between alkyl side chains was exploited. As a result
of the increased solubility, the film forming properties of the polymer
could be improved, but at the cost of reduced hole mobilities in OFET
devices, due to the lack of long-range order in the polymer films
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