Essays about: "ex situ"

Showing result 1 - 5 of 60 essays containing the words ex situ.

  1. 1. From Plant Genetic Resource Conservation to Digital Biorepositories: A Coming Paradigm Shift in Ex-Situ Conservation?

    University essay from Lunds universitet/Ekonomisk-historiska institutionen

    Author : Christopher Keegan; [2023]
    Keywords : Bioinformatics; Genebanks; Genetic Engineering; Mixed-Methods; Multi-Disciplinary; Patent Analysis; Plant Genetic Resources; Synthetic Biology; Technological Trajectories; Business and Economics;

    Abstract : Plant Genetic Resource Conservation has been a staple of agricultural development for the past century. Recently, several prominent papers have raised alarm surrounding the development of synthetic biology techniques and their potential to render modern practices and methods of conservation in the global genebank network obsolete. READ MORE

  3. 2. Investigating self-discharge in a graphite dual-ion cell using in-situ Raman spectroscopy.

    University essay from Uppsala universitet/Strukturkemi

    Author : Ismail Yussuf Hassan; [2023]
    Keywords : graphite; dual-ion battery; parasitic reaction; cathode-electrolyte interface; anion intercalation; concentrated electrolyte; self-discharge; Raman spectroscopy;

    Abstract : Anion intercalation in the graphite positive electrode of a dual-ion battery requires high potential (> 4.3 V vs Li+/Li), which aggravates parasitic reactions involving electrolyte decomposition and Al corrosion, manifesting in poor coulombic efficiency, cycle life, and quick self-discharge. READ MORE

  4. 3. Reprocessing and Characterization of Polybenzimidazole for High-Temperature Polymer Electrolyte Membrane Fuel Cells

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Douglas Björkengren; [2023]
    Keywords : polymer electrolyte membrane fuel cells; PEMFC; HTPEMFC; polymer technology; polymer characterization; reprocessing; recycling; polybenzimidazole; PBI; Technology and Engineering;

    Abstract : A reprocessing method of poly(2,2’-(m-phenylene)-5,5’-bibenzimidazole) (PBI) membranes recovered from the production line of High-Temperature Polymer Electrolyte Membrane Fuel Cells (HT-PEMFC) at Blue World Technologies (BWT) has been developed in order to reduce material loss in the production. Redissolution of scrap PBI membranes in poly(phosphoric acid) (PPA) and phosphoric acid (PA) was successful and the subsequent washing procedure produced PBI that could be redissolved in N,N-dimethyl acetamide (DMAc) and suitable for solution casting of new membranes. READ MORE

  5. 4. A Conceptual Design to Enable Lunar 3D Mapping : Analysis Based Design of A Mechanism to Facilitate Electrical Sensor Packaging and Deployment on The Lunar Regolith

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Fatemehsadat Shahrokhi; Soheil Keipour; [2023]
    Keywords : Lunar 3D Mapping; Lunar Mining; Structural Analysis; Sensor Probes; Digital Prototyping;

    Abstract : The prospect of mining the moon to extract valuable resources that facilitates upcoming space exploration is what the space industry invests in, in recent years.The Lunar exploration is a solid stepping stone to enable further space exploratory missions, especially Mars. READ MORE

  6. 5. Origin of blue straggler stars in the Milky Way halo

    University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Author : Adam Brcek; [2023]
    Keywords : Blue Straggler; Galactic Halo; Spectroscopic Surveys; Binary Star Evolution; Mass Transfer; Physics and Astronomy;

    Abstract : Blue straggler stars (BSSs) are exotic stellar objects that appear to be younger than the age of the population they come from suggests. They are observed as the extension of the main sequence stars, beyond the turn-off point. READ MORE