Study of Bondura® Expanding PIN System – Combined Axial and Radial Locking System

Bolted connections are widely used in parallel plates and flanged joints to axially lock using the preload generated by the tightening torque and to constrain radial movements of the flanges by the surface friction between mating surfaces. The surface friction depends on the micro-asperities of mating surfaces; under the influence of vibrations and other external radial loads, these asperities tend to deform over time, resulting in the failure of the connection. The Bondura expanding pin system presented in this article is an innovative axial and radial locking system, in which the failure of bolted connections due to radial movements is eliminated by relying on the mechanical strength of the pin system along with the surface friction. The present study describes an experimental design to verify the maximum possible preload on the axial-radial pin at different levels of applied torque. The article also provides a realistic comparison of the pin system with standard bolts in terms of handling axial and radial loads. With some alterations in the axial-radial pin system’s design, the joint’s capability to resist failure improved appreciably compared with the original design and standard bolts with higher preload. As a result, the estimated capability improvement of the joint against the connection failure due to the external radial load by the axial-radial pin is observed to be more than 200 % compared to standard bolts. Considering the pros and cons of both fasteners, i.e., axial-radial pin and standard bolts, a practical solution can be chosen in which both fasteners are used in a connection, and an optimized situation can be developed based on the working conditions.

Understanding the Socioeconomics of International Migration Decisions and Outcomes Through the Capability-Based Migration Framework

This dissertation critically reviews neoclassical migration theories and conceptualises the capability-based framework as a prospect in migration theory. I show that most of the neoclassical migration theories were formed in the twentieth century. They therefore require an update to accommodate contemporary migration dynamics. I argue that a multifaceted and multidimensional capability-based approach that centralises human agency and capabilities can address the earlier theories’ shortcomings. Hence, I adopt the capability-based migration framework as the main framework in my dissertation. The dissertation differs from previous empirical studies in its unique methodology and exceptional attention to the grey areas in the migration discourse. Using data from prospective Nigerian migrants living in Nigeria, actual migrants living in Italy and a collection of secondary data sources, the dissertation addresses three research questions: how do capabilities influence migration decisions in the home country; what are the capability-depriving constraints faced by migrants in the host country; and how do migrants contribute to capability improvement in the home country?

Pengenalan teknik Pembuatan Kapsul Black Garlic di Desa Sembalun Bumbung

Introducing an appropriate technology by University of Mataram student group of KKN ( Kuliah Kerja Nyata) or Community Service program was conducted in Sembalun Bumbung village Sembalun District, East Lombok Regency, West Nusa Tenggara Province. One of the aim of this program is to improve the added values of local existing product suchof as “Black Garlic” that was modified into into Black Garlic Capsules. The program targeted partners of farmer groups, youths, and PKK (Pendidikan Keseahteraan Keluarga) group by providing information on knowledge transfer and fermented garlic skill becomes a food product ( Black Garlic Capsules) as the prospective business opportunity to increase the economy of the local community. The methods used in this program including the steps as follows , Intoducing the research on the development of black garlic, the demonstration and training on product manufacture , packaging and marketing training, assisting and mentoring to partnership and conducting evaluation during training. The result of this program showed a positive response from village officials and its local people as c indicated byan be seen from the enthusiasm of the participant during the training and actively involved in the partnership. In addition, from this program indicated that the rapid knowledge improvement of the partnership on producing Black Garlic, the skill and capability improvement in practicing the processed product by the partnership , as well as it makes them interested to produce black garlic capsules to gain additional income for their family.