Proceedings on Engineering Sciences

8

Authors: Qassem N. Alwan, Rasha A. Rajab

This study was prepared in order to reveal the role of the technical and functional quality of the health services provided in the hospitals of the Medical City in Baghdad in achieving patient satisfaction. The hospitals are (Baghdad Teaching hospital, Specialized Surgery Hospital, and Private Nursing Home). A random sample of (264) patients was selected by adopting the questionnaire tool as a measure of the study variables. The questionnaire was distributed to the hospitalized patients in the surveyed hospitals. SPSS Version 25 was used in the analysis. The results showed that the results showed that there is an effective and substantial relation between technical quality and patient satisfaction, as well as a positive and significant realtion between functional quality and patient satisfaction.

8

Authors: Muhammad Ilham Kurniawan, Popo Subroto, Maryana, Yusrina Ulfah, Syahrial Shaddiq, Mohammad Zainul

Indonesia is a country with the 4th largest population in the world. Based on the existing population, Indonesia can build its market in this Industry 4.0 era, currently, several domestic start-ups are growing so rapidly, such as Gojek and Tokopedia, which is in early 2021 choose to collaborate as the Goto Grup in their efforts to their developed their business. The formulation of the problem: How is the impact of the company merger on the value of the Gojek and Tokopedia merger case study Objective: How is the impact of the company merger on the share value of the Gojek and Tokopedia merger case study. By using a qualitative approach and descriptive analysis, this research focuses on analyzing or interpreting written material based on its context. Data is taken from observation. The results of the analysis found an increase in shares whose ownership was dominated by Gojek and with a company merger it would be easy to become an Initial Public Offering (IPO) this in the future will grow the domestic economy. Because the Goto ecosystem itself has fulfilled 2% of the Gross Domestic Product (GDP).

10

Authors: Rahman, Muhammad Badar, Andi Alim

This study aims to examine the influence of innovation variables, organizational culture and entrepreneurial orientation on the performance of small and medium enterprises in Makassar City, Indonesia. The research method used in this research is a quantitative analytic approach with multiple regression analysis, F test, and t-test. The results of this study indicate that simultaneously the variables of innovation, organizational culture and entrepreneurial orientation influence the performance of Small and Medium Enterprises and partially the variables of innovation, organizational culture and entrepreneurial orientation affect the performance of Small and Medium Enterprises. So, it is suggested to small entrepreneurs in particular to maintain their abilities related to innovation and entrepreneurial orientation and to implement organizational culture in carrying out business activities to improve business performance.

10

Authors: Nnamdi Cyprian Nwasuka, Uchechukwu Nwaiwu

This research presents a solar hybrid air-conditioning system with R410a refrigerant. The sole aim was to compare the performance of a solar hybrid air-conditioner with that of the conventional split-unit air-conditioning systems in the market today. From the experiments conducted, the room temperature of a solar hybrid air conditioner was found to be :27.2, 27.0, 27.0, 27.2, 27.2, 27.0, 28.0, and 29.5 while that of the conventional air conditioner was found to be:69,66,64,66,73,69,66,62 indicating that solar hybrid system had lower values in terms of room temperature than that of the split units air conditioner. Laboratory results, field assessments, and simulations clearly established that hybrid air conditioners can deliver substantial energy savings and demand reduction. Therefore, in the present study, performance evaluation of the solar hybrid system with that of the split units is used to develop approximate analytical solutions for heat transfer in boundary layer flow and heat transfer.

12

Authors: Rasoul Yarahmadi, Somayeh Soleimani-Alyar

The performance assessment of strategic levels of an integrated management system (IMS) is critical to policy making phase of executive organizations. Because, the integrity of objectives and strategies in the overall system performance insures the integrity of activities and performance in the subsidiary departments and units. Unfortunately, this approach of assessment has been rarely focused. Here, the Fuzzy Cognitive Mapping-Relative Degree Analysis (FCM-RDA) technique was chosen to assess the performance trend of the health, safety, environment, and energy (HSEE)-IMS in a ministry during 2014-2019. There were 12 HSEE-IMS strategic sub-elements and 6 system sub-performances. The Gephi0.9.2 software was applied to simulate the FCM model. Accordingly, the sub-performance of policy and leadership was placed at the first priority. The development of HSEE management, and review (of policies and programs) were two HSEE-IMS sub-elements, categorized in the second priority. The results showed an ascending trend of the system performance during 2014-2018 and a descending trend during 2018-2019. It was found that the poor performance of HSEE-IMS sub-elements in the strategic and tactical levels resulted in the poor performance of system at the operational levels. There was found a strong relationship between the HSEE-IMS sub-elements and system sub-performances.

18

Authors: Altaf Lone, Azher Jameel, Sajad Hussain Din

This work presents the simulation study of fracture behavior of steel and composites. The crack growth behavior of the material is simulated by extended finite element method (XFEM). XFEM allows the modeling of arbitrary geometric features independently of the finite element mesh. The crack surface elements are enriched by Heaviside function whereas, crack front elements treated by asymptotic functions. Ramberg-Osgood material model coupled with damage is used to simulate the crack propagation. The experimental data is obtained from extensive literature review of literature published in last five years. Numerical simulation is performed on the commercial software ABAQUS. A benchmark test specimen is used for numerical simulation, created as per ASTM standard in ABAQUS. 3D CT, SENB and DENT specimen have been chosen for simulation. The study aims at further extensive detailed study of fracture mechanics’ design. Fatigue has been studied as mode 1 loading. Conformal meshing limitations with dynamic problems using classical FEM have been addressed. Paris law has been used as damage model. Mode I fatigue loading is used to analyze the crack growth in the both steel and composite problems. A specimen with initial crack is loaded till failure and therefore fracture mechanics design is extended to newly introduced class of materials. Number of cycles till failure is evaluated and visualized. The design considerations are further evaluated using benchmark literature tests like four-point bend and compression-tension tests. The knowledge has been extended to solve some practically important problems like turbine disk and surface cracking. A design feature leak before break has been given due consideration by solving the problems with high pressure pipes with internal cracks.