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This thesis deals with the evaluation of risks of business development proposals ZEVOS a.s. acting on the fuel market. The thesis is divided into three main parts, the first part describes the theoretical knowledge. In this section are shown and described methods of dealing with the internal and external surroundings of the company. In the second part, which deals with the analytical part, the methods used to assess the current situation in the market where the company operates. The third part provides a proposal for the development of business solutions and financial investment return.

The Upper Eocene Cowlitz Formation is exposed in surface outcrops southwest of the town of Vernonia, in Columbia County, Oregon. The Cowlitz Formation also occurs in the subsurface of the Mist gas field where its Clark and Wilson (C and W) sandstone member (informal) acts as a natural gas reservoir, and its upper Cowlitz mudstone member (informal) acts as a cap rock. Surface exposures and continuous core were studied in order to determine Cowlitz Formation stratigraphy, and its depositional environment. Fresh core samples were also studied petrographically, and with a scanning electron microscope, in order to determine the effects of diagenesis in the gas producing C and W sandstone member.

Hard carbon is regarded as one of the most promising anode materials for sodium-ion battery. However, the ash content of the hard carbon anode inherited from the precursor have several negative impacts on the electrochemical performance of hard carbon. The traditional method utilizes strong inorganic acid washing to reduce the ash content of hard carbon. However, this method results in heavy environment pressure and safety hazards. Therefore, it’s necessary to exploring an alternative ash content removal method which is safer and environment friendly. This project develops an environmentally friendly approach to remove ash from hard carbon by using acetic acid. This approach effectively reduces the ash content and enhances the electrochemical performance of the hard carbon anode. The ash content of hard carbon decrease from 1.57 wt% to 0.655 wt% after the 4 mol /L acetic acid treatment. The two-step treatment process also studied in this project and shows a better ash removal ability than one-step treatment process. The ash content of 4 mol /L acetic acid and 20 wt% KOH only 0.28 wt%. Furthermore, the electrochemical performance of the two- step treated hard carbon exhibits notable improvements, including enhanced initial Columbic efficiency (from 84.53% to 88.11%), reversible capacity (from 244.2 mAh g-1 to 280.8 mAh g-1). The long cycle performance of chemical treated hard carbon anode need further investigations in future studies. / Hårt kol anses vara ett av de mest lovande anodmaterialen för natriumjonbatterier. Askhalten i den hårda kolanoden som ärvts från prekursorn har dock flera negativa effekter på den elektrokemiska prestandan hos hårt kol. Den traditionella metoden använder stark oorganisk syratvättning för att minska askhalten av hårt kol. Denna metod resulterar dock i hög miljöbelastning och säkerhetsrisker. Därför är det nödvändigt att utforska en alternativ metod för borttagning av askinnehåll som är säkrare och miljövänligare. Detta projekt utvecklar ett miljövänligt tillvägagångssätt för att ta bort aska från hårt kol genom att använda ättiksyra. Detta tillvägagångssätt reducerar effektivt askinnehållet och förbättrar den elektrokemiska prestandan hos den hårda kolanoden. Askhalten i hårt kol minskar från 1,57 viktprocent till 0,655 viktprocent efter 4 mol/L ättiksyrabehandlingen. Tvåstegsbehandlingsprocessen studerades också i detta projekt och visar en bättre förmåga att avlägsna aska än enstegsbehandling. Askhalten av 4 mol/L ättiksyra och 20 viktprocent KOH är endast 0,28 viktprocent. Dessutom uppvisar den elektrokemiska prestandan hos det tvåstegsbehandlade hårda kolet anmärkningsvärda förbättringar, inklusive förbättrad initial Columbic effektivitet (från 84,53 % till 88,11 %), reversibel kapacitet (från 244,2 mAh g-1 till 280,8 mAh g-1). Den långa cykelprestandan hos kemiskt behandlad hård kolanod behöver ytterligare undersökningar i framtida

The Desmoinesian Marmaton Group, along the southern portion of the Anadarko Basin in the Granite Wash, comprises over 2,000 feet of stacked tight sandstones and conglomerates, containing unconventional reservoirs. Uncertainty around facies variability and lateral continuity of these reservoirs represents challenges to accurate reservoir characterization due to laterally restricted submarine fan systems, and mountainront faulting. This study examines 206 wire-line well-log suites and nine ice-house flooding surfaces across an 810-square mile study area to frame fine-scale sequences, track facies changes, and estimate fault timing and duration. This high-resolution stratigraphic framework comprises a hierarchy of cycles: one third-order, three fourth-order, and eight fifth-order cycles; these were mapped across fault blocks. Mapping at the fifth-order scale documented previously un-published faults, and showed that movement occurred during two separate fifth-order cycles. Within the stratigraphic framework, well log trends, calibrated to core descriptions, enabled prediction of depositional environments in uncored wells.

This thesis investigates, if the exposure to conflict impacts the level of morbidity attributed to environmental risks, while addressing a gap in understanding the triple nexus between conflict, environmental hazards, and public health. Utilizing a subset of the Global Burden of Disease Study dataset, the variation of the rate of disability-adjusted life years (DALY) attributable to unsafe access to water, sanitation, and hygiene (WASH) due to conflict is examined. The findings of the country-fixed effects model – using a sample of Sub-Saharan African countries – reveal that the intensity of conflict significantly increases the rate of DALY, indicating a greater negative public health outcome in line with the hypothesis. The choice of the conflict threshold does significantly impact the results, emphasizing the importance of a robust definition of conflict. Controlling for foreign aid attributed to health and the density of health workers, the negative health outcomes associated with conflict are mitigated, suggesting that adequate healthcare provision can mitigate the impacts of conflict on public health. Overall, this thesis contributes to the understanding of the triple nexus, highlighting the need for more research and policy measures to address the long-term health impacts of conflict.

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No description available.

Argos mjölktank på Wedholms AB behöver utveckla vattenlåda med bättre säkerhet för el-kretsar på styrsystem samt reducera processtid för diskning av mjölktank.

The presence of postharvest sanitizers has shown to be an effective approach to reducing microbial cross contamination in agricultural washing operations. However, choosing an appropriate sanitizer can be challenging due to produce commodity, processing conditions and interference with organic load. Current research shows a wide variety of methods to mimic the organic load of vegetable processing conditions, with paddle mixing and blender as the most commonly used. Controlling and understanding the physiochemical properties of wash water is key in maintaining sanitizer efficacy. The effects of simulated wash water preparation method on the physiochemical properties were tested at 0 and 50 COD(mg/L) and no significant difference was observed. However, at high levels of organic load results showed a significant difference between turbidity values at 1,500 COD. Free residual chlorine titration methods were compared, using DPD-titrimetric and Iodometric method. Results showed a significant difference between titration methods in organic load heavy environments. Commercially available chlorine based sanitizers, Pure Bright™ Germicidal Bleach and Clorox® Germicidal Bleach, were compared to a concentrated solution of sodium hypochlorite. Pure Bright™ Germicidal Bleach showed to perform the best by reducing 7 log CFU/ml of E. coli O157:H7 after 30 seconds in no organic load environments, whereas Clorox Germicidal bleach was able to reduce 7 log CFU/ml of E. coli O157:H7 after 30 minutes. These studies aim to provide best management practices for small in medium growers in the implementation of antimicrobial solutions for the maintenance of water quality in postharvest washing solutions.