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Lucian Lobonț, Radu Emanuil Petruse, Paul Mihai Obrodoviciu and Ioan Bondrea

Abstract

The development of the business - industry environment is unconceivable without the involvement of academia. On one hand, the universities can provide new perspectives and know-how which can be further translated into exquisite products and services for companies. On the other hand, the business environment can raise practical problems and challenges for academia, providing in the same time material support for finding solutions to these problems. This paper presents a successful partnership between business and academia materialized in the development of a robotized semiautomatic motorcycle transmission. Since the solutions existing on the market did not meet the specific requirements of our industrial partner, we were asked to design an innovative and cost effective clutch and gearbox mechanism. The paper presents all the stages passed from establishing specific objectives and tasks for each member of the project’s team, the specific steps followed in order to develop the clutch operation mechanism and the gear mechanism, the obstacles and failures encountered during the design process and the testing procedures, the optimizations implemented, up to the final solution. The advantages of such industry-academia projects are discussed and possible obstacles that can hinder this kind of collaboration are addressed.

Open access

Daniel Bîtcă, Emilian Ursu and Paul Ioan

Abstract

A 3000 tones capacity silo, located in a seismic area with ground acceleration ag = 0,20g and TC =1,0s, was designed in a classical solution The supporting structure has an octagonal shape in planview, and columns with “Maltese cross sections”. The main lateral resisting system is made up of centric bracings with cross-section class I.

The technological project has required two silos and the solution was to support them on a common raft foundation. The stresses and strains due the seismic action led to material consumption that exceeded the agreed budget. In order to reduce the costs, two versions of isolator positions were studied: base isolators (at the connection between infrastructure and superstructure) and at the silo’s bearing level on the supporting structure.

A number of eight vertical seismic isolators were used and in order to limit the horizontal displacements due to wind action and for small intensity earthquakes special devices were introduced

Comparing the state of stresses and deformations and also the cost analysis regarding the positioning of the isolators, the second solution was chosen as the most feasible.

Open access

Anca Bălănescu, Paul Bălănescu, Valentina Comănici, Iustina Stan, Beata Acs, Laura Prisăcariu, Florin Brezan, Tatiana Ciomârtan and Ioan Gherghina

Abstract

Background and aims. The aim of this study is to assess the lipid profile pattern of pediatric overweight and/or obese patients with Non-Alcoholic Fatty Liver Disease (NAFLD) in relation to IDF Consensus Criteria for Metabolic Syndrome (MetS).

Material and Methods. We conducted a cross-sectional preliminary study on 45 consecutive pediatric patients. Overweight or obese children aged from 3 to 18 years were included. Standardized measurement of blood pressure and anthropometric parameters were performed. Biological evaluation included inflammatory status, lipid profile, glycemic profile, full blood count and liver function tests. Abdominal ultrasound was performed in all patients.

Results. Prevalence of MetS was 44.4%. A number of 21 patients (46.7%) had NAFLD. MetS patients had higher risk for NAFLD (OR = 9.5, 95% CI = 2.42-37.24). Also patients with positive familial history of type 2 diabetes had a 6.61 fold higher risk for NAFLD (OR = 6.61, 95% CI = 1.74-25.1). We performed a subgroup analysis in patients under ten years old. Patients under the age of ten which had both NAFLD and MetS met more frequently the hypertriglyceride criterion. After adjusting for age and MetS presence, triglyceride levels independently associated with NAFLD (adjusted R square = 0.46, unstandardized B coefficient = 34.51, 95% CI = 4.01-65.02, p = 0.02).

Conclusion. NAFLD obese patients had higher prevalence of MetS, higher BMI and particular lipid profile pattern. Triglyceride levels independently associated with NAFLD after adjusting for age and MetS presence. According to our findings we suggest early triglyceride testing (even below the age of ten) in selected patients.