SECTION DESIGN FOR MOMENT

2010 ◽  
pp. 41-74
Keyword(s):  
Section Design

Cross-Section Design of the Crash Box to Maximize Energy Absorption

2011 ◽  
Author(s):  
Hwan Hak Jang ◽  
Hyun-Ah Lee ◽  
Sang-Il Yi ◽  
Dae Seung Kim ◽  
Heui Won Yang ◽  
...  
Keyword(s):  
Energy Absorption ◽  
Cross Section ◽  
Section Design

NUMERICAL ANALYSIS OF FLOW BEHAVIOR IN GAS-LIQUID CYLINDRICAL CYCLONE (GLCC©*) SEPARATORS WITH INLET DESIGN MODIFICATIONS

2021 ◽  
pp. 1-27
Author(s):  
Srinivas Swaroop Kolla ◽  
Ram S. Mohan ◽  
Ovadia Shoham
Keyword(s):  
Numerical Study ◽  
Flow Behavior ◽  
Low Cost ◽  
Field Application ◽  
Attractive Alternative ◽  
Inlet Section ◽  
Wide Range ◽  
Cylindrical Cyclone ◽  
Light Oil ◽  
Section Design

Abstract The Gas-Liquid Cylindrical Cyclone (GLCC©*) is a simple, compact and low-cost separator, which provides an economically attractive alternative to conventional gravity-based separators over a wide range of applications. More than 6,500 GLCC©'s have been installed in the field to date around the world over the past 2 decades. The GLCC© inlet section design is a key parameter, which is crucial for its performance and proper operation. The flow behavior in the GLCC© body is highly dependent on the fluid velocities generated at the reduced area nozzle inlet. An earlier study (Kolla et al. [1]) recommended design modifications to the inlet section, based on safety and structural robustness. It is important to ensure that these proposed configuration modifications do not adversely affect the flow behavior at the inlet and the overall performance of the GLCC©. This paper presents a numerical study utilizing specific GLCC© field application working under 3 different case studies representing the flow entering the GLCC, separating light oil, steam flooded wells in Minas, Indonesia. Commercially available Computational Fluid Dynamics (CFD) software is utilized to analyze the hydrodynamics of flow with the proposed modifications of the inlet section for GLCC© field applications.

scholarly journals Presepsin Level Correlates with the Development of Moderate Coronary Artery Calcifications in Hemodialysis Patients: A Preliminary Cross-Section Design Study

2020 ◽  
Vol Volume 13 ◽  
pp. 999-1006
Author(s):  
Ahmed F Elhabashi ◽  
Leena Sulaibeekh ◽  
Nahed Seddiq ◽  
Salman Alali ◽  
Amjad K Abdulmajeed ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Cross Section ◽  
Hemodialysis Patients ◽  
Design Study ◽  
Section Design

Characterization of the Custom-Designed, High Reynolds Number Water Tunnel

2016 ◽  
Author(s):  
Yasaman Farsiani ◽  
Brian R. Elbing
Keyword(s):  
Boundary Layer ◽  
Reynolds Number ◽  
Test Section ◽  
High Reynolds Number ◽  
Layer Growth ◽  
Water Tunnel ◽  
Freestream Velocity ◽  
Section Design ◽  
High Reynolds

This paper reports on the characterization of the custom-designed high-Reynolds number recirculating water tunnel located at Oklahoma State University. The characterization includes the verification of the test section design, pump calibration and the velocity distribution within the test section. This includes an assessment of the boundary layer growth within the test section. The tunnel was designed to achieve a downstream distance based Reynolds number of 10 million, provide optical access for flow visualization and minimize inlet flow non-uniformity. The test section is 1 m long with 15.2 cm (6-inch) square cross section and acrylic walls to allow direct line of sight at the tunnel walls. The verification of the test section design was accomplished by comparing the flow quality at different location downstream of the flow inlet. The pump was calibrated with the freestream velocity with three pump frequencies and velocity profiles were measured at defined locations for three pump speeds. Boundary layer thicknesses were measured from velocity profile results and compared with analytical calculations. These measurements were also compared against the facility design calculations.

scholarly journals Reliability and Validaty of St George Respiratory Questionnaire (SGRQ) into Indonesian Version

2014 ◽  
Vol 3 (3) ◽  
pp. 179
Author(s):  
Adnan Adnan ◽  
Dyah Aryani Perwitasari ◽  
Ully Adhie Mulyani
Keyword(s):  
Quality Of Life ◽  
Factor Analysis ◽  
Convergent Validity ◽  
Discriminant Validity ◽  
Special Instrument ◽  
Convergent And Discriminant Validity ◽  
Group Validity ◽  
Section Design ◽  
St George's Respiratory Questionnaire

Tuberculosis (TB) is one of the disease as the highest contributor to the disease burden in Indonesia. Tuberculosis can affect the patients’ quality of life, such as psychological, physical, and social functioning. St. George's Respiratory Questionnaire (SGRQ) is a special instrument which was widely used to measure the patients’ quality of life with respiratory disease. The objective of this study was to validate the Indonesian version of the SGRQ as instrument to collect data. A descriptive cross section design with 61 subjects was conducted at the Pulmonary Clinics and Primary Health Centers in the region of Yogyakarta within 3 months. The validation process included the known group validity, convergent and discriminant validity and factor analysis. There were 14 items question numbers which did not meet the criteria for convergent validity and 9 items which did not meet the criteria for discriminant validity. Known group validity analysis on gender showed that of the three domains of SGRQ, the activity domain gave statistically significant result. The factor analysis showed the result of Kaiser Meyer Olkin analysis (KMO) was less than 0.5. With a few modifications, the Indonesian version of SGRQ is valid and reliable for measuring quality of life in tuberculosis patients.

scholarly journals WOUND INFECTION

2010 ◽  
Vol 17 (01) ◽  
pp. 64-67
Author(s):  
UZMA HUSSAIN ◽  
AFSHAN SAEED ◽  
FARZANA LATIF
Keyword(s):  
Cesarean Section ◽  
Wound Infection ◽  
Wound Dehiscence ◽  
Severe Anaemia ◽  
Medical College ◽  
Emergency Cesarean ◽  
Section Design ◽  
Elective Cesarean ◽  
Wound Discharge ◽  
Very High

Objective: To evaluate the effects of the anaemia in wound infection after cesarean section. Design: Prospective study. Setting:Department of Obstetric-Gynaecology in Sir Ganga Ram Hospital / Fatima Jinnah Medical College Lahore. Period: Sep 2008 to Sep 2009.Patients and Methods: The study comprises of 100 pregnant women with moderate to severe anaemia. Selected cases underwent cesareansection due to different indications. The rate and frequency of wound infection was observed in all these women. Results were analysed andtabulated. Results: 100 cases with moderate to severe anaemia who underwent cesarean section were included. Moderate aneamia wasrecognized in 55% of cases and 19% with severe anaemia. Wound discharge was seen in 44 % of cases and wound dehiscence was foundin 56 % cases. Culture was positive in 41 % patients and majority of these were unbooked. Non elective cesarean delivery was performed in99% of cases. Conclusion: The rate of wound infection was very high in moderate to severely anemic women who underwent non elective/ emergency cesarean section.

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