The paper provides an insight into key engineering aspects of Kuwait Oil Company＇s existing projects, facilities and equipment both current and from nearly 30 years of projects development. It deals with engineering ...The paper provides an insight into key engineering aspects of Kuwait Oil Company＇s existing projects, facilities and equipment both current and from nearly 30 years of projects development. It deals with engineering features of mainly process and mechanical equipment, both static and rotating besides others, used for collection, separation, desalting, heat transfer, chemical treatment, storage, transmission, pipelines and similar facilities utilized for upstream oil and gas production, both sweet and sour. Engineering highlights include certain technological developments, metallurgical aspects, few best practices and lessons learnt as well. Seven （7） case studies are included towards the end that show case some of the engineering aspects of facility equipment, lessons learned from their engineering and conclusions drawn that, emphasize the need to focus on initial, preliminary engineering aspects of projects and could provide useful tips for oil and gas engineers and designers.展开更多
<strong>Objective:</strong> To measure the acceptance of a coronavirus disease 2019 (COVID-19) vaccine among the sector of the oil company adult population in Kuwait and assess its determinants. <strong...<strong>Objective:</strong> To measure the acceptance of a coronavirus disease 2019 (COVID-19) vaccine among the sector of the oil company adult population in Kuwait and assess its determinants. <strong>Subjects and Methods:</strong> A cross-sectional email study enrolled adults working for Kuwait oil companies (<i>n</i> = 1689;aged ≥21 years). Acceptance of a COVID-19 vaccine was considered if participants selected the options and received the vaccine, definitely or probably will accept vaccination against COVID-19 once a vaccine is available.” A modified Poisson regression was used to investigate the associations and calculate the adjusted prevalence ratios (aPRs) and their 95% confidence intervals (CIs). <strong>Results:</strong> In total, 92.5% (1563/1689) of the participants were willing to accept COVID-19 vaccines once available. No difference in sex was observed in the willingness to accept a COVID-19 vaccine (92.5 vs. 92%, p 0.5). Responders who believed vaccines in general to have health-related risks were less likely to get vaccinated (aPR = 0.39, 95% CI: 0.35 - 0.44). In addition, participants who received the influenza vaccine were more willing to have a COVID-19 vaccine (aPR = 1.44, 95% CI: 1.31 - 1.58). Acceptance of the vaccine against COVID-19 increased as the self-perceived chances of contracting the infection increased (<i>p</i> < 0.001). <strong>Conclusion:</strong> Overall, 92.5% of the study participants demonstrated a willingness to be vaccinated against COVID-19. However, we found that public health authorities should address several factors influencing the level of acceptance.展开更多
Purpose： The oil and gas gathering and processing facility of Kuwait Oil Company is built with a nameplate capacity of X MBOPD （thousand barrels oil per day） with 50% water cut. However, the facility was operating ...Purpose： The oil and gas gathering and processing facility of Kuwait Oil Company is built with a nameplate capacity of X MBOPD （thousand barrels oil per day） with 50% water cut. However, the facility was operating with a water cut of 35%. This comprehensive technical study was conducted to evaluate possibility of increasing oil processing capacity of this facility in line with current lower water cut and other operational flexibilities available in the facility without utilizing its design margin. Topic： This paper shares an innovative approach to increase name plate capacity of oil and gas processing facility utilizing available operational flexibility and operational margins with minor modification. It shares a case study where facility capacity is increased by around 19% without utilizing design margins of equipment or pipeline. Method： The study includes theoretical verification and analysis of all major equipment and piping to identify available capacity and limitation, in order to utilize available additional margin and to propose debottleneck options to overcome limitations. Achievement： The study confirmed that, facility name plate capacity can be revised from X MBOPD （with 50% w.c （water cut）） to X ＋ 32 MBOPD （with： 45% w.c） minor modification in separator and utilizing margin available in feed specification ofdesalter trains.展开更多
We read the Yang et al,published case report in Laparoscopic,Endoscopic and Robotic Surgery.2019.https://doi.org/10.1016/j.lers.2019.09.001,with great interest.Yang et al,in the introduction mentioned that the cornual...We read the Yang et al,published case report in Laparoscopic,Endoscopic and Robotic Surgery.2019.https://doi.org/10.1016/j.lers.2019.09.001,with great interest.Yang et al,in the introduction mentioned that the cornual ectopic pregnancy is defined as a pregnancy that is abnormally located in the proximal portion of the fallopian tube,lying within the muscular wall of the uterus.展开更多
Objective: To compare the transvaginal cervical length (TVCL) to the modified Bishop's score for prediction of successful labor induction in nulliparous women. Methods: A total of 210 nulliparous women who were di...Objective: To compare the transvaginal cervical length (TVCL) to the modified Bishop's score for prediction of successful labor induction in nulliparous women. Methods: A total of 210 nulliparous women who were diagnosed as premature rupture of membranes were recruited in this comparative prospective study, which was carried out in the Obstetrics and Gynecology Department of Ain Shams University, Egypt over two years for labor induction. The studied women were examined by trans-vaginal ultrasound for measurement of the cervical length (CL) and vaginally to calculate the modified Bishop's score, followed by induction of labor. Collected data were analyzed to compare the TVCL to the modified Bishop's score for prediction of successful labor induction in nulliparous women. The success of induction process was defined as vaginal birth after the induction of labor. Results: One hundred and forty-three women of studied women had CL <28 mm;122 of them delivered vaginally (P=0.030). One hundred and forty-six women of studied women had modified Bishop's score >4;128 of them delivered vaginally (P=0.006). The CL <28 mm was significantly more specific with more positive predictive value as predictor of successful labor induction compared to modified Bishop's score. Induction to delivery time was significantly shorter in women with CL <28 mm than women with CL ≥28 mm (P=0.02;95% confidence interval: 4.9-8.4). In addition, induction to delivery time was significantly shorter in women with Bishop's score >4 than women with Bishop's score of 曑4 (P=0.01;95% confidence interval: 1.6-4.5). Conclusions: Both TVCL and the modified Bishop's score are complementary tools in pre-induction cervical assessment before induction of labor, while the TVCL at <28 mm is significantly more specific with more positive predictive value as predictor of successful induction than the modified Bishop's score.展开更多
Glass fiber composite laminates have competitive properties than monotonic material for their superior mechanical strength. Lab joints in composite structure are of great importance in aerospace and aircraft industry....Glass fiber composite laminates have competitive properties than monotonic material for their superior mechanical strength. Lab joints in composite structure are of great importance in aerospace and aircraft industry. Therefore, lab joints’ strength and failure of composite laminates structure are experimentally investigated. Composites laminates of four different stacking sequences and layup are manufactured using hand layup technique and curing at room temperature. Specimens of unidirectional laminates of [0]8 stacking sequence are used to test lamina mechanical properties while [0/90]2s, [0/60/90]s and woven are used to test the mechanical properties of lab joints. Lab joints of single row and double row are produced and tested in bearing using simple mode I test (tension test). The results illustrate that bearing strength of quasi-brittle laminates of [0/60/90]s has more stability and strength than that of woven glass fiber, then the cross ply laminates of [0/90]2s;this can be attributed to increase of anisotropy of cross ply laminates than other composite laminate structure.展开更多
Background: Preterm labor (PTL) remains a major source of neonatal morbidity, and mortality. Currently the trans-vaginal cervical length (TVCL), and/or cervico-vaginal fetal fibronectin (fFN) are the common diagnostic...Background: Preterm labor (PTL) remains a major source of neonatal morbidity, and mortality. Currently the trans-vaginal cervical length (TVCL), and/or cervico-vaginal fetal fibronectin (fFN) are the common diagnostic tools used for prediction of PTL. Consequently, many women and their fetuses are exposed unnecessarily tocolysis and hospital admission. Objectives: This study was designed to compare the diagnostic accuracy of PremaQuick versus Actim Partus in prediction of PTL in symptomatic women within 14 days. Patients and Methods: Two-hundred and twenty women (220) were included in this comparative prospective study and classified into two groups: 110 women with threatened preterm labor (TPTL) in the study group, and 110 controls (no TPTL). Women included in the study were subjected to: through history, collection of the cervico-vaginal fluid (CVF) samples for assessment by PremaQuick and Actim Partus tests, followed by trans-vaginal cervical length (TVCL) assessment. Studied women managed according to the hospitals protocol, with follow-up weekly in the obstetrics outpatients’ clinic after discharge from the hospital until delivery. The main outcome measures the diagnostic accuracy of PremaQuick versus Actim Partus in prediction of PTL in symptomatic women within 14 days of admission. Results: PremaQuick test was significantly more specific with higher positive predictive value (PPV) in prediction of PTL in symptomatic women within 14 days (95.5% and 89.6%;respectively) compared to CL 25 mm (56.3% and 54.6%;respectively), (P = 0.02 and 0.03;respectively). In addition, PremaQuick test was significantly more sensitive with higher positive predictive value (PPV) in prediction of PTL in symptomatic women within 14 days (39.8% and 89.6%;respectively) compared to Actim Partus (13.9% and 55.5%;respectively), (P = 0.001 and 0.01;respectively). The Odds ratio and the relative risk for prediction of PTL in symptomatic women within 14 days were significantly high for PremaQuick compared to the CL 25 mm, and Actim Partus. Conclusion: PremaQuick test seems to be the best complementary test to the CL 25 in prediction of PTL in symptomatic women within 14 days. PremaQuick test compensates the low specificity and low PPV of the CL 25 mm in prediction of PTL.展开更多
Omega-3 fatty acids are one of the most used food supplements. However, atrial fibrillation has been recently presented as a rare adverse drug event following ingestion of high doses of this food supplement.
文摘The paper provides an insight into key engineering aspects of Kuwait Oil Company＇s existing projects, facilities and equipment both current and from nearly 30 years of projects development. It deals with engineering features of mainly process and mechanical equipment, both static and rotating besides others, used for collection, separation, desalting, heat transfer, chemical treatment, storage, transmission, pipelines and similar facilities utilized for upstream oil and gas production, both sweet and sour. Engineering highlights include certain technological developments, metallurgical aspects, few best practices and lessons learnt as well. Seven （7） case studies are included towards the end that show case some of the engineering aspects of facility equipment, lessons learned from their engineering and conclusions drawn that, emphasize the need to focus on initial, preliminary engineering aspects of projects and could provide useful tips for oil and gas engineers and designers.
文摘<strong>Objective:</strong> To measure the acceptance of a coronavirus disease 2019 (COVID-19) vaccine among the sector of the oil company adult population in Kuwait and assess its determinants. <strong>Subjects and Methods:</strong> A cross-sectional email study enrolled adults working for Kuwait oil companies (<i>n</i> = 1689;aged ≥21 years). Acceptance of a COVID-19 vaccine was considered if participants selected the options and received the vaccine, definitely or probably will accept vaccination against COVID-19 once a vaccine is available.” A modified Poisson regression was used to investigate the associations and calculate the adjusted prevalence ratios (aPRs) and their 95% confidence intervals (CIs). <strong>Results:</strong> In total, 92.5% (1563/1689) of the participants were willing to accept COVID-19 vaccines once available. No difference in sex was observed in the willingness to accept a COVID-19 vaccine (92.5 vs. 92%, p 0.5). Responders who believed vaccines in general to have health-related risks were less likely to get vaccinated (aPR = 0.39, 95% CI: 0.35 - 0.44). In addition, participants who received the influenza vaccine were more willing to have a COVID-19 vaccine (aPR = 1.44, 95% CI: 1.31 - 1.58). Acceptance of the vaccine against COVID-19 increased as the self-perceived chances of contracting the infection increased (<i>p</i> < 0.001). <strong>Conclusion:</strong> Overall, 92.5% of the study participants demonstrated a willingness to be vaccinated against COVID-19. However, we found that public health authorities should address several factors influencing the level of acceptance.
文摘Purpose： The oil and gas gathering and processing facility of Kuwait Oil Company is built with a nameplate capacity of X MBOPD （thousand barrels oil per day） with 50% water cut. However, the facility was operating with a water cut of 35%. This comprehensive technical study was conducted to evaluate possibility of increasing oil processing capacity of this facility in line with current lower water cut and other operational flexibilities available in the facility without utilizing its design margin. Topic： This paper shares an innovative approach to increase name plate capacity of oil and gas processing facility utilizing available operational flexibility and operational margins with minor modification. It shares a case study where facility capacity is increased by around 19% without utilizing design margins of equipment or pipeline. Method： The study includes theoretical verification and analysis of all major equipment and piping to identify available capacity and limitation, in order to utilize available additional margin and to propose debottleneck options to overcome limitations. Achievement： The study confirmed that, facility name plate capacity can be revised from X MBOPD （with 50% w.c （water cut）） to X ＋ 32 MBOPD （with： 45% w.c） minor modification in separator and utilizing margin available in feed specification ofdesalter trains.
文摘We read the Yang et al,published case report in Laparoscopic,Endoscopic and Robotic Surgery.2019.https://doi.org/10.1016/j.lers.2019.09.001,with great interest.Yang et al,in the introduction mentioned that the cornual ectopic pregnancy is defined as a pregnancy that is abnormally located in the proximal portion of the fallopian tube,lying within the muscular wall of the uterus.
文摘Objective: To compare the transvaginal cervical length (TVCL) to the modified Bishop's score for prediction of successful labor induction in nulliparous women. Methods: A total of 210 nulliparous women who were diagnosed as premature rupture of membranes were recruited in this comparative prospective study, which was carried out in the Obstetrics and Gynecology Department of Ain Shams University, Egypt over two years for labor induction. The studied women were examined by trans-vaginal ultrasound for measurement of the cervical length (CL) and vaginally to calculate the modified Bishop's score, followed by induction of labor. Collected data were analyzed to compare the TVCL to the modified Bishop's score for prediction of successful labor induction in nulliparous women. The success of induction process was defined as vaginal birth after the induction of labor. Results: One hundred and forty-three women of studied women had CL <28 mm;122 of them delivered vaginally (P=0.030). One hundred and forty-six women of studied women had modified Bishop's score >4;128 of them delivered vaginally (P=0.006). The CL <28 mm was significantly more specific with more positive predictive value as predictor of successful labor induction compared to modified Bishop's score. Induction to delivery time was significantly shorter in women with CL <28 mm than women with CL ≥28 mm (P=0.02;95% confidence interval: 4.9-8.4). In addition, induction to delivery time was significantly shorter in women with Bishop's score >4 than women with Bishop's score of 曑4 (P=0.01;95% confidence interval: 1.6-4.5). Conclusions: Both TVCL and the modified Bishop's score are complementary tools in pre-induction cervical assessment before induction of labor, while the TVCL at <28 mm is significantly more specific with more positive predictive value as predictor of successful induction than the modified Bishop's score.
文摘Glass fiber composite laminates have competitive properties than monotonic material for their superior mechanical strength. Lab joints in composite structure are of great importance in aerospace and aircraft industry. Therefore, lab joints’ strength and failure of composite laminates structure are experimentally investigated. Composites laminates of four different stacking sequences and layup are manufactured using hand layup technique and curing at room temperature. Specimens of unidirectional laminates of [0]8 stacking sequence are used to test lamina mechanical properties while [0/90]2s, [0/60/90]s and woven are used to test the mechanical properties of lab joints. Lab joints of single row and double row are produced and tested in bearing using simple mode I test (tension test). The results illustrate that bearing strength of quasi-brittle laminates of [0/60/90]s has more stability and strength than that of woven glass fiber, then the cross ply laminates of [0/90]2s;this can be attributed to increase of anisotropy of cross ply laminates than other composite laminate structure.
文摘Background: Preterm labor (PTL) remains a major source of neonatal morbidity, and mortality. Currently the trans-vaginal cervical length (TVCL), and/or cervico-vaginal fetal fibronectin (fFN) are the common diagnostic tools used for prediction of PTL. Consequently, many women and their fetuses are exposed unnecessarily tocolysis and hospital admission. Objectives: This study was designed to compare the diagnostic accuracy of PremaQuick versus Actim Partus in prediction of PTL in symptomatic women within 14 days. Patients and Methods: Two-hundred and twenty women (220) were included in this comparative prospective study and classified into two groups: 110 women with threatened preterm labor (TPTL) in the study group, and 110 controls (no TPTL). Women included in the study were subjected to: through history, collection of the cervico-vaginal fluid (CVF) samples for assessment by PremaQuick and Actim Partus tests, followed by trans-vaginal cervical length (TVCL) assessment. Studied women managed according to the hospitals protocol, with follow-up weekly in the obstetrics outpatients’ clinic after discharge from the hospital until delivery. The main outcome measures the diagnostic accuracy of PremaQuick versus Actim Partus in prediction of PTL in symptomatic women within 14 days of admission. Results: PremaQuick test was significantly more specific with higher positive predictive value (PPV) in prediction of PTL in symptomatic women within 14 days (95.5% and 89.6%;respectively) compared to CL 25 mm (56.3% and 54.6%;respectively), (P = 0.02 and 0.03;respectively). In addition, PremaQuick test was significantly more sensitive with higher positive predictive value (PPV) in prediction of PTL in symptomatic women within 14 days (39.8% and 89.6%;respectively) compared to Actim Partus (13.9% and 55.5%;respectively), (P = 0.001 and 0.01;respectively). The Odds ratio and the relative risk for prediction of PTL in symptomatic women within 14 days were significantly high for PremaQuick compared to the CL 25 mm, and Actim Partus. Conclusion: PremaQuick test seems to be the best complementary test to the CL 25 in prediction of PTL in symptomatic women within 14 days. PremaQuick test compensates the low specificity and low PPV of the CL 25 mm in prediction of PTL.
文摘Omega-3 fatty acids are one of the most used food supplements. However, atrial fibrillation has been recently presented as a rare adverse drug event following ingestion of high doses of this food supplement.
