bluuebunny/crossref_metadata_2025_split huggingface dataset:
A Novel Approach for Designing Boltless Connectors - Example on a New Drilling Riser Connector
Authors: Roguet Eleonore , Persent Emmanuel , Averbuch Daniel 
Published: August 2021

Abstract
A new method which uses elastic and elasto-plastic Finite Element analyses is developed to design a double breech-block type connector. All relevant criteria proposed by API16F are fulfilled. In addition, plastic and bearing criteria have been added to support the use of lugs for load transfer in the connector.
The proposed methodology has been applied and validated through experimental tests at different scales and in particular on laboratory specimens and small-scaled connectors. Based on these last structural tests, a safety factor of almost 8 was obtained for the design method on small-scaled connectors.
Prototype tests at scale 1:1 allowed the methodology to be fully validated and a new product to be qualified. Certification bodies validated the whole design process, the employed methodology and the new connector.
Reelability Assessment of Adhesively Bonded Mechanically Lined Pipe
Authors: Toguyeni Grégory Alexandre , Fernandez-Vega Jens , Jones Richard , Gallegillo Martin , Banse Joachim 
Published: August 2021

AbstractA solution to prevent liner wrinkling in Mechanically Lined Pipes (MLP) with a standard 3.0mm thick liner during reeling, without the use of pressurisation, has been developed in the form of the GluBi® lined pipe. The liner being adhesively bonded to the outer pipe, its integrity is maintained despite the global plastic strain applied by the installation method. This new linepipe product has been qualified for offshore use through testing accompanied by a detailed Finite Element Analysis programme to fully capture the pipe and adhesive behaviours under and range of temperatures and loading conditions.The objective of this analysis program was to investigate the reelability of the GluBi® pipe. The instalability was defined as the capability of the pipe to tolerate cyclic plastic deformation representative of a typical pipeline installation by reeling without the formation of wrinkling of the CRA liner, and to maintain the integrity of the adhesive layer, particularly near the weld overlay at the pipe ends.Important areas of the GluBi® pipe design are the pipe extremities, particularly the transition between the liner and the weld overlay length. A detailed Finite Element model of the pipe was created. It captured all stages of the pipe manufacturing: pipe lining, hydrostatic expansion, adhesive curing, overlay weld deposition and reeling simulation. The pipe modelled was 312.1mm OD × 19.7mm WT SMLS 450 with a nominal 3.0mm thick Alloy 625 liner. An important validation work was performed to obtain a precise material response of the adhesive layer between liner and outer pipe. The adhesive mechanical properties were thus assessed in shearing and peeling over a range of temperatures covering all possible manufacturing and installation conditions. The model's elements and adhesive property modelling were validated against physical test results.Sensitivity analyses were done on the adhesive curing temperature, the geometry of the adhesive transition between the liner and the overlay weld at the pipe ends and on the liner thickness. The model was subjected to reeling simulation corresponding to Subsea 7's reel-lay vessels. The liner's integrity post reeling was assessed according to a range of acceptance criteria. These studies made it possible to establish parameter ranges for the safe installation of the linepipe.
LNG Loading Lines High Surge Analysis
Authors: Abdul Talip Noor Arnida , Zainal Abidin Shahrul Azman , M Ali Ir Fadzrul Izwan 
Published: August 2021

Abstract
Proper design of LNG loading lines and verification of emergency shutdown (ESD) interlock systems are critical in ensuring overall safety of the LNG facility. During an emergency, ESD interlock is activated with ESD valves closure initiated simultaneously with all loading pumps trip and the kickback valves open. During the ESD valves closure, the pipeline can be exposed to a risk of high surge pressures exerted onto the wall. A pressure surge or liquid hammering phenomenon in piping systems can be caused by a fluid in motion forced to stop or change direction suddenly (rapid momentum change) and also due to cavitation effect. Cavitation is caused by the formation and instantaneous collapse of vapour bubbles. The collapsing bubbles exert severe localized impact forces that can result in pressure surges. This paper discusses the methodology used to evaluate any potential occurrence of surge and the peak pressure associated with it, using several case studies for analysis. This paper also shares best practice identified from the study to facilitate with safe operations at an LNG loading facility.
Making LNG Affordable as a Means to Monetize Associated Gas Offshore
Authors: Dimbour Jean-Philippe , Gadelle Dominique , Laflotte Benoit , Disaro Lorenzo 
Published: August 2021

Abstract
Today, the gas associated with oil production is becoming an environmental concern for existing fields when it is flared. There are substantial quantities of associated gas still burnt at fields every year.
When offshore, the reinjection of such associated gas into the reservoir is not always technically feasible, it is expensive, and may become a blocker for new offshore oil developments.
Associated gases can be monetized in the form of LNG produced directly offshore, it can become an enabler of new oil projects, and a means to reduce CO2 emissions and meet commitments.
LNG production at sea can be achieved at a competitive CAPEX, by using an innovative mega-module concept.
Furthermore, when treating rich associated gases, the production and export of high-value liquid by-products - LPG and condensates and even possibility ethane - can greatly improve the economics of LNG production itself by creating additional revenues, at a marginal increment cost thanks to the integrated process and utilities functionalities, while keeping the possibility to adjust to several LNG market specifications.
Assessment of the Impact of Wax Deposition in a Pre-Salt Project
Authors: Pinheiro Nathalie Carvalho , Pinho Sergio Paulo Gomes 
Published: August 2021

Abstract
Despite pre-salt fields in Brazil usually having high production per well, one of the areas presents a reservoir with low permoporosity, which results in small flowrates with fluid temperatures during production below the one that is critical for wax deposition. The operations commonly used to remove the wax deposits are diesel soaking and pigging, which brings production losses and OPEX increase. Thus, the economic analysis should consider these events reducing the operational efficiency of production.
To evaluate the production drop due to wax deposition, it was necessary to perform a loop test to determine the wax growth throughout time. With a multiphase simulator, it is possible to choose the deposition model and the diffusion coefficient that best fits the analyzed fluid. However, one of the limitations of this first analysis is the lack of data to determine the effect of the shear stripping, as the test is performed under a laminar flow. As this term plays an important role in wax growth, it was necessary to add to the simulation model the shear coefficient fitted from another pre-salt field. With this information, it will be possible to make a more reliable evaluation of the impact of wax deposition, increasing the confidence in the production curve, OPEX and NPV of the full field project.
This paper shows the methodology that has been applied to evaluate the impact of wax deposition in pre-salt fields. It presents the deposition model, and its coefficients used to fit the multiphase transient models to a pre-salt field.
Full Generic Qualification of Nylon 12 Carbon Fiber Composite for Dynamic Thermoplastic Composite Pipe and Hybrid Flexible Pipe Applications
Authors: Schuett Carsten , Paternoster Alexandre 
Published: August 2021

Abstract
Composite structures are used as corrosion insensitive load bearing reinforcement in dynamic Thermoplastic Composite Pipe (TCP) and Hybrid Flexible Pipe (HFP) applications. The qualification of such structures can follow different strategies: product level versus material characterization. DNVGL-ST-F119 proposes a generic knowledge-based approach based on a testing pyramid. The pyramid allows a generic material characterization for a large number of conditions.
Testing of dedicated specimens in constant media exposure measures the actual properties and changes of the material. Regression data is obtained for end-of-life properties. Simulations can be conducted using these properties to determine performance of the product in any state and condition and validate any load cases through classical stress combination.
The characterization for VESTAPE® Nylon 12 Carbon Fiber thermoplastic composite (CF-PA12) covers all failure mechanisms for matrix, fiber and interface in static, dynamic and stress rupture mode for virgin, fully hydrocarbon saturated and aged to end of life in saturated condition. Each condition assessment is carried out in complete temperature dependency for subzero, room temperature, intermediate and maximum use temperature of 176°F (80°C). Fatigue testing covers runtimes of 106 cycles whereas stress rupture assessment exceeds 12,500h which corresponds to almost 1.5 years. With dense data populations for both regression curves and static test results the coefficient of variation is controlled. All characterization logic and data are analyzed for validity and certified by the official body of the DNV-GL.
The material characterization enables simulation of a variety of application designs in predictive engineering and a simplified study is made for a dynamic gas injection jumper to demonstrate relevant occurring load cases.
Utilizing all data and approaches allows to define the overall application envelope of the material. For the case of the thermoplastic composite of CF-PA12 it covers static flowlines, dynamic jumpers, service lines up to dynamic risers in sour crude service up to 176°F (80°C). The knowledge-based approach allows for economic design in engineering cases without compromising safety.
Sociodemographic Determinants of Tuberculosis Burden in India
Authors: Roy Manas Pratim 
Published: August 2021

Introduction:
Tuberculosis (TB), the eighth common cause of disability-adjusted life years in India, is a major problem for public health. Social factors such as economic condition and smoking have been implicated among the risk factors for TB. This paper reports the role of different sociodemographic factors in deciding the burden of TB in India.

MATERIALS AND METHODS:
In an ecological approach, data from major national surveys were analyzed: National Family Health Survey 4, Global Adult Tobacco Survey 2, and India: Health of the Nation’s States. Spearman correlation coefficient and multivariate linear regression were used for state-wise analysis.

RESULTS:
North India seems to be the major contributor to the national TB burden. Several factors such as the use of clean fuel, tobacco use, and economic condition were seen to impact TB burden. On multivariate analysis, only clean fuel was found to be significant (r = −0.540, P = 0.002).

CONCLUSION:
A multi-pronged approach for appropriate policy decisions for focussing on sociodemographic factors is the need of the hour for reducing the mortality burden due to TB.
A Comparative Study on the Association of Hypothyroidism with Adhesive Capsulitis of Shoulder
Authors: Greeshma AD , Sankaran Ravi , Joseph Narikunnel G. , Surendran Kutickat 
Published: August 2021

Objective:
Adhesive capsulitis (AC) is a pathologic condition characterized by pain and limitation of shoulder movements. Thyroid dysfunction often accompanies musculoskeletal disorders, and undiagnosed hypothyroidism can delay response to treatment outcomes. Early diagnosis and treatment of hypothyroidism in patients with AC of shoulder could help to improve pain and disability. This study was done to assess the association of hypothyroidism with AC of shoulder and to find the correlation of severity of pain and disability in AC with hypothyroidism.

MATERIALS AND METHODS:
In this case–control study, patients who attended PMR OPD during a period of 2 years with pain and limitation of shoulder movements satisfying the inclusion and exclusion criteria were included as cases and patients without AC as controls. Fifty-seven patients were selected as cases and 114 patients as controls. Serum thyroid-stimulating hormone (TSH) level and free tetraiodothyronine level were estimated. Shoulder range of motion (ROM) measurement and radiographs were performed in cases, and the TSH values obtained were compared with the severity of ROM restriction, Visual Analog Scale score, and Shoulder Pain and Disability Index Scale (SPADI) score. Statistical analysis was done using IBM SPSS 20 (SPSS Inc., Chicago, IL, USA).

RESULTS:
Among cases, 8 (14%) patients had hypothyroidism and 16 (28.1%) had subclinical hypothyroidism, and among controls, 4 (3.5%) had hypothyroidism and 9 (7.9%) had subclinical hypothyroidism. Among the 24 patients with elevated TSH, 16 (66.6%) had mild-to-moderate pain and 8 (33.3%) had severe pain. Mean TSH was elevated in patients with severe pain compared with those with mild-to-moderate pain (5.43 ± 2.31 vs. 3.35 ± 2.48 µIU/mL, P = 0.031). TSH levels showed a positive correlation with SPADI pain score (r =0.335, P = 0.011) and SPADI disability score (r = 0.375, P = 0.004), respectively. There was significant restriction in ROM in patients with higher TSH levels (P < 0.001).

CONCLUSION:
Patients with AC have higher prevalence of hypothyroidism and subclinical hypothyroidism compared with those who did not. Patients with higher TSH levels had more severe pain, restriction of movement, and overall disability when compared with euthyroid patients. Proper management of hypothyroidism along with the standard measures of management may result in more speedy relief from symptoms and recovery of function in these patients.
The Unsustainability of Long-Lasting Insecticidal Nets
Authors: Santos Ellen M. , Curtis Tatyana M. 
Published: August 2021

ABSTRACT.
Long-lasting insecticidal nets (LLINs) are highly effective tools for malaria prevention, and it is clear bed nets are necessary. However, given the environmental concerns of the production, distribution, and disposal of LLINs, the malaria prevention community should look to design sturdier nets that last longer and are made of more sustainable materials to reduce harmful environmental impacts in a time when addressing climate change is urgent. We discuss concerns related to plastic pollution and the environmental health of LLINs in their current form, while recognizing the absolute importance of bed nets for malaria prevention. We call for conversation and innovation among all those involved in malaria prevention to address the unsustainability of LLINs and to maximize the resources available for malaria prevention in a climate of competing global health priorities.
Seroprevalence of Dengue Infection Using IgG Capture ELISA in India, 2017–2018
Authors: Santhosh Kumar Muthusamy , Kamaraj P. , Khan Siraj Ahmed , Allam Ramesh Reddy , Barde Pradip V. , Dwibedi Bhagirathi , Kanungo Suman , Mohan Uday , Sundar Mohanty Suman , Roy Subarna , Sagar Vivek , Savargaonkar Deepali , Tandale Babasaheb V. , Topno Roshan Kamal , Kumar C. P. Girish , Sabarinathan R. , Kumar V. Saravana , Karunakaran T. , Jose Annamma , Sadhukhan Provash , Toteja G. S. , Dutta Shanta , Murhekar Manoj 
Published: August 2021

ABSTRACT.
We conducted a nationally representative population-based survey in 60 districts from 15 Indian states covering all five geographic regions during 2017–2018 to estimate the age specific seroprevalence of dengue. Of the 12,300 sera collected, 4,955 were positive for IgG antibodies against dengue virus using IgG Indirect ELISA indicating past dengue infection. We tested 4,948 sera (seven had inadequate volume) positive for IgG antibodies on indirect ELISA using anti-dengue IgG capture ELISA to estimate the proportion of dengue infections with high antibody titers, suggestive of acute or recent secondary infection. Of the 4,948 sera tested, 529 (10.7%; 95% CI: 9.4–12.1) were seropositive on IgG capture ELISA. The proportions of dengue infections with high titers were 1.1% in the northeastern, 1.5% in the eastern, 6.2% in the western, 12.2% in the southern, and 16.7% in the northern region. The distribution of dengue infections varied across geographic regions, with a higher proportion of infections with high antibody titer in the northern and southern regions of India. The study findings could be useful for planning facilities for clinical management of dengue infections.
Perceptions, behaviours, barriers, and needs of flipped classroom learning: opinions of first-year pharmacy students
Authors: Wong Pei Se , Ho Ket Li , Chia Chee Fen , Ng Sook Han , Hashim Hazwanie 
Published: August 2021

Objective: To explore pharmacy students' experiences, barriers, and needs of first-year pharmacy students flipped classroom (FC) learning.
Method: A qualitative study with focus groups was performed. Three focus group sessions with seventeen first-year pharmacy students were conducted. All sessions were audio-recorded, transcribed, and analysed for themes using an inductive thematic analysis approach.
Results: Students, in general, found FC to be useful for learning and using a range of self-regulated learning strategies in the FC environment. Barriers identified were primarily to i-lectures and potentially hindered motivation and acceptance to pre-classroom preparation.
Conclusions: There are students' reservations toward flipped classrooms attributed to individual motivation and barriers encountered. Students transitioning to flipped classroom approach require easy-to-learn and use pre-class learning materials tailored to students' level and preferences.
ANALISIS TINGKAT KEJAHATAN ANAK DIBAWAH UMUR MENGGUNAKAN METODE FP-GROWTH (STUDI KASUS DI POLRESTA PADANG)
Authors: Bania Randika Farike 
Published: August 2021

Kekerasan terhadap anak sebagai setiap tindakan atau serangkaian tindakan wali atau kelalaian oleh orang tua atau pengasuh lainnya yang dihasilkan dapat membahayakan, atau berpotensi bahaya, atau memberikan ancaman yang berbahaya kepada anak.. Mengimplementasikan Data Mining, Association Rule dan Algoritma FP-Growth pada kekerasan kekerasan pada anak di bawah umur untuk mengekstrak ilmu pengetahuan, informasi penting dan menarik dari database. Sumber data yang digunakan masih merupakan data mentah yang belum diolah dan merupakan data kekerasan pada anak di bawah umur yang mencangkup laporan di Polresta Padang. Hasil penelitian ini adalah berupa suatu perangkat lunak dengan mengimplementasikan algoritma FP-Growth yang menggunakan konsep pembangunan FP-Tree dalam mencari Frequent Itemset dan unutk pengujian hasil dilakukan dengan aplikasi yang telah dirancang menggunakan bahasa pemogramman PHP MYSQL. Hasil pengujian didapatkan dari assosiasi kasus kekerasan yang dominan terjadi pada anak dibawah umur, yaitu jika Kasus Penganiayaan maka Korbannya Pelajar dengan nilai support 30% dan nilai confidence 84%, jika Pelaku Swasta maka Korban Pelajar dengan nilai support 20% dan confidence 73%, jika Pelaku Swasta, Kasus Penganiayaan maka Korban Pelajar dengan nilai support 17% dan confidence 71%, jika Kasus Cabul maka Korban Pelajar dengan nilai support 28% dan confidence 65% dan jika Pelaku Pengangguran maka Korban pelajar dengan nilai support 17% dan confidence 64%.
Diagnosa Kualitas Jaringan Internet menggunakan Logika Fuzzy (Studi Kasus : Balai Besar Wilayah I Medan)
Authors: Mahardika Fauzi , Hidayat Kahfi Nur 
Published: August 2021

Internet telah menjadi salah satu faktor penting dalam menunjang ketersediaan informasi yang tepat waktu, mendapatkan jaringan internet yang baik dapat ditinjau dari kualitas jaringan internet. Dalam penelitian ini dilakukan pengujian kualitas jaringan internet di Balai Besar Meteorologi dan Geofisika Wilayah I Medan berdasarkan data traffic jaringan yang didapatkan pada portal monitoring traffic jaringan BMKG dengan pengembangan sistem diagnosa ini menggunakan logika fuzzy. logika fuzzy yang dikembangkan pada sistem menggunakan ping time, lost time, dan down time sebagai variabel input dengan fungsi keanggotaan variabel input ping time dengan kriteria bagus, sedang, dan jelek, sedangkan fungsi keanggotaan variabel input lost time dengan kriteria sangat bagus, bagus, sedang, dan jelek, untuk variabel input down time hanya memiliki satu fungsi keanggotaan. Untuk variabel output berupa kualitas jaringan internet disertai dengan nilai reliability, maintainbility, dan avability (RMA) dengan fungsi keanggotaan kualitas jaringan internet jelek, sedang, bagus, dan sangat bagus. Hasil pengujian sistem yang dilakukan terhadap jaringan internet yang ada pada Balai Besar Meteorologi Klimatologi dan Geofisika Wilayah I Medan menunjukkan keluaran sistem diagnosa kualitas jaringan intenet yang sangat baik, sehingga sistem diagnosa kualitas jaringan ini dapat dimanfaatkan.
ASSESSMENT OF BLOOD CHOLESTEROL AMONG STAFF IN KASHIM IBRAHIM COLLEGE OF EDUCATION MAIDUGURI, BORNO STATE, NIGERIA
Authors: Saleh Maryam Saidu , Umar Gaya Muhammed Wakili , Abdulsalam A. , Dahiru Abdullahi Dan Asabe 
Published: August 2021

<p>This study assessed of blood cholesterol among staff in Kashim Ibrahim College of Education Maiduguri, Borno state. Three hypotheses guided the study. Survey research design was used for this study. The population for the study comprised staff of Kashim Ibrahim College of Education Maiduguri numbering 566 (academic staff 216 and non-academic staff 350). A sample of 57 (males 37, females 20) staff were selected for the study using stratified sampling technique with proportionate method. The instruments used for data collection were floride oxalate container yellow cap and green cap, syringe (5ml) with needle to determine blood cholesterol of the participants; biodata sheet was used in recording the information of each participant. Analysis of data was done using descriptive statistics of mean, standard deviation, frequency counts and percentage. t-test and Analysis of Variance (ANOVA) was used to test hypotheses at 0.05 alpha level of significance. All the hypotheses formulated was retained. It was concluded that there is no significant difference in the hypotheses tested. Based on the results of this study, it was recommended that adequate sport facilities, including time allocation for sporting activities should be provided by the College authority within the College environment; that will enable the staff to participate in physical activities as a means of preventing the occurrence of these biomedical health risk factors.</p><p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0622/a.php" alt="Hit counter" /></p>
WHEN DISABILITY SERVICE OFFICERS BECOME STREET-LEVEL ADVOCATES IN QUEENSLAND TECHNICAL AND FURTHER EDUCATION CONTEXTS THROUGH ARISTOTLE’S NICOMACHEAN ETHICS
Authors: Caskey Jacqueline 
Published: August 2021

<p>Aristotle, The Grand Master of Philosophy and Literature, developed many theories relating to inequality which remain relevant in this current millennium. This qualitative study examined the role of Disability Service Officers (DSOs) in Technical and Further Education (TAFE) and explored their approach to students with dyslexia using Aristotelian theory. This case study used semi-structured interviews in five TAFE Colleges within Australia. A foundational theory of Street-Level Advocates emerged from the DSOs interactions with adult students with dyslexia. Disability Service Officers interactions aligned with Aristotle's philosophy of Nicomachean Ethics; and knowledge, thinking, and ethics of humanity, whilst practicing good deeds. Aristotle’s theory plays an integral part of this research, as he provides knowledge of good deeds, not unlike DSOs in TAFE.</p><p> </p><p><strong> Article visualizations:</strong></p><p><img src="/-counters-/edu_01/0656/a.php" alt="Hit counter" /></p>