Biogas produced via the anaerobic digestion (AD) of organic waste materials is considered as an important technology in improving the environment because it solves waste management problems and simultaneously produces biogas as a main product and digestate as a by-product, which can also be used as a fertilizer. Within the rising expectations for the substitution of fossil energy with renewable energy as one of the solutions to cope with climate change, the environmental aspects of small-scale biogas plants, as widely used method for energy creation, should be evaluated in a holistic and systematic way. The use of small-scale biogas plants is mostly common for energy creation from waste in Southeast Asia. This source of energy is mainly lauded for its low costs, clean production and high fertilization effects of digested matter for crops. There are number of advantages of small-scale biogas production on farms, including also savings on firewood or fossil fuels and reduction in odour and greenhouse gas emissions from using other fuels. However, biogas plants are often poorly managed and there is lack of proper distribution systems for biogas. That results in methane being release inadvertently through leaks in digesters and tubing, and intentionally when production exceeds demand. As methane has a global warming potential 25 times higher than that of carbon dioxide, environmental advantages of small-scale biogas plants might be compromised. This dissertation intends to provide in-depth understanding about the issue with taking into accounts possible risks. Investigating of such a topic is within continuing concern about small-scale biogas technology in rural areas of developing countries. For this reason technical, social, economic and environmental assessment of small-scale biogas technology will be done. Methods of data collection will consist of questionnaire survey and focus group discussions among randomly selected owners of biogas plants, semi-structured personal interviews with local authorities and facilitators and observation. Furthermore, prediction of future development of this technology will be created.

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Small and medium-sized Enterprises (SME's) are driving force of Czech economy, development, innovations, growth and employ more than 60 % of employees. Thanks to globalization and reduction of barriers of trade Czech SME's must face increasing competition. On this account the process of the internacionalization of SME's becomes actual and facilitates them to survive. The main objective of this thesis is to propose methodical process of identification factors, which influence success of SME's in foreign markets. Further is designed evaluating system, which evaluates success of the small and medium-sized enterprises in foreign markets. At the close of the thesis is presented case study, which verify proposed methodical process.

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This dissertation focuses on identification of key aspects small and medium sized enterprises in Germany should pay attention to in order to survive on the free market. The dissertation comes up with critically analysed and researched success factors that support entrepreneurs in their decision making and steering of their enterprise. The most important factor for success regarding the respondents of the survey and interviews is the power of endurance closely followed by the aspect of flexible structures. Additionally it seems to be important to have support and backing from the family in order to own/manage/found a successful small and medium sized enterprise in Germany and survive on the free, self regulating market. Furthermore innovation in processes and products show significance towards being relevant for a successful SME. Another aspect that seems to be important for these German SMEs are competent employees. There are certain aspects that show significance towards a successful small and medium sized enterprise that are related to the owner and family. The owner seems to be one key aspect for a successful SME, as power of endurance, the personality of the owner/manager, "gut-feeling" decisions of the owner and a visionary leadership all relate to the personality of the individual owner or family. These four aspects relating to the personality of the owner are all ranked under the first eleven success factors of the survey. Researched SMEs tend to be steered and managed with a long-term perspective with the strategy of differentiation and rather consider success as creating values for the future not simply monetary profit.

Small and medium-sized enterprises are an important part of Czech and World economy. These enterprises are a key driver for economic growth, innovation and employment. The thesis deals with the risk factors involved in internationalization process of small and medium-sized enterprises in the food industry. The objective of this thesis is to identify the key risk factors internationalization process and to propose risk management measures that prevent an entry and operation of small and medium-sized enterprises on foreign markets. This thesis will focus on small and medium-sized enterprises in the food industry in the Czech Republic.

This diploma thesis is focused on relationship between small and medium sized enterprises and marketing agencies. Its main objective is to determine the amount of small and medium-sized enterprises, which outsource marketing services and determine which factors affect decision making in this area. It was found that small and medium enterprises have rather dismissive attitude and generally underestimate marketing. The most important criterion in the selection of agencies are personal recommendations, as well as the amount and importance of the former clients of the agency and the price of services. These conclusions are based on quantitative research that was conducted in order to obtain primary data. The research sample included 288 responses of small and medium-sized enterprises. Research was evaluated using the statistical program Statistica v.12 Office and MS Excel. The results of the quantitative survey were then compared with opinions of representatives of marketing agencies and marketing freelancers. This feedback has allowed the author to formulate appropriate recommendations for small and medium-sized enterprises.