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Journal articles on the topic 'Tet spells'
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Aliyu, Ibrahim, and IbrahimF Zainab. "Tet spells with acute kidney injury." Sudan Medical Monitor 9, no. 2 (2014): 97. http://dx.doi.org/10.4103/1858-5000.146585.
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Chauhan, Sandeep, Pankaj Ingole, Shailaja Kale, and Usha Kiran. "Correlation of BIS with Tet spells." Journal of Cardiothoracic and Vascular Anesthesia 18, no. 5 (2004): 682–83. http://dx.doi.org/10.1053/j.jvca.2004.07.028.
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Singh, Rahul, Miguel A. Chavez, Stephanie Fuentes Rojas, et al. "RIGHT VENTRICULAR OUTFLOW TRACT OBSTRUCTION IN AN ADULT WITH REPAIRED TETRALOGY OF FALLOT PRESENTING AS TET SPELLS." Journal of the American College of Cardiology 73, no. 9 (2019): 2760. http://dx.doi.org/10.1016/s0735-1097(19)33366-2.
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Kalapurakal, George T., and James M. Monaco. "Treating Tet Spells With Disopyramide in a 72-Year-Old Awaiting Primary Repair of Tetralogy of Fallot." JACC: Case Reports 28 (December 2023): 102093. http://dx.doi.org/10.1016/j.jaccas.2023.102093.
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International, Journal of Medical Science and Innovative Research (IJMSIR). "Perioperative Anaesthetic Management for an Isolated or Combined Tetralogy of Fallot (TOF) and Cleft Palate/Lip Repairs - A Systematic Review and Meta-Analysis." International Journal of Medical Science and Innovative Research (IJMSIR) 9, no. 4 (2024): 59–79. https://doi.org/10.5281/zenodo.15422691.
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<strong>Abstract</strong> The prevalence of cleft lip is 0.3 in every 1000 live births and the combination of cleft lip (CL) and palate(P) in every 1000 live births is 0.45.[1] The CL/P is commonly associated with various cyanotic and noncyanotic cardiac anomalies including Tetralogy of Fallot’s (TOF).[2,3] Severe congenital heart disease (CHD) forms are diagnosed and treated before cleft care.[4] Most of the patients with CL/P can be operated on at a median age of 11 months without any serious complications, and intensive care unit admission or mortality.[2] Nowadays, most of the CL/P repairs are managed under the smile train scheme. The Smile Train is the world’s largest cleft-focused organization, that empowers local medical professionals with the training, funding, and resources to provide 100%-free cleft surgery and other comprehensive cleft care to children globally. Since 1999, the Smile Train Society have supported safe and quality cleft care for 2+ million children in 95+ countries. Various palliative procedures like Blalock- Taussig (BT ) shunt, ductus arteriosus stenting, balloon dilatation or stenting of right ventricle outflow tract (RVOT) and pulmonary artery angioplasty in neonatal life as a bridge to TOF correction surgery should be performed before the cleft repair to avoid the life-threatening complications like Tet spells(cyanotic spells), increased blood loss, re-exploration, hemodynamic instability, arrhythmias, air embolism, seizures, and even mortality.[5] Under any circumstances, the severe form of TOF should be managed prior to the CL/P repair, and such cases should be operated in a tertiary care centre with established expertise in the care of both paediatric cardiac and craniofacial lesions. The anaesthetic management of Children with uncorrected TOF undergoing CP repair is a challenge and requires a thorough understanding of the pathophysiology of TOF, clinical presentation, sequelae of chronic hypoxemia like polycythaemia, recurrent Tet spells, coagulopathy, systemic venous thrombosis, cerebral abscess, endocarditis, and multiple organ dysfunctions, and respiratory infection to avoid the morbidity and mortality. Ideally, the TOF pathology and palliative interventions should determine the anaesthetic induction agent, i.e. presence or absence of dynamic RVOT obstruction with hypertrophic muscle bundles, presence of patent ductus arteriosus (PDA) and major aortopulmonary collateral arteries (MAPCAS) or previous modified BT shunt.[6] Generally, ketamine has been considered the induction drug of choice in TOF owing to its effect of an increase in systemic vascular resistance(SVR) and a decrease in the right to left intracardiac shunt. In the author's experience, narcotic based balanced general anaesthesia technique comprising a combination of fentanyl, midazolam, etomidate, sevoflurane in 100% oxygen, and vecuronium as a muscle relaxant can be safely utilised in TOF with both dynamic and static RVOTO, keeping in mind the principles of maintenance of SVR and systemic blood pressure, and adequate intravascular volume, avoidance of increase in inotropy and HR and proper de-airing of all intravenous lines to avoid the paradoxical air embolism.[6] There are no clinical data available in the literature concerning the clinical outcome of the concomitant combined repair of the TOF and CL/P to date. However, nowadays, in high-volume tertiary care centres, several combined cardiac and non-cardiac surgical procedures are performed successfully. Similarly, both TOF and CL/P can be repaired concomitantly by the experienced multidisciplinary team of paediatric cardiac surgeon and oral maxillofacial surgeons and paediatric cardiac anaesthetist and intensivist. This systematic review and meta-analysis focus on the perioperative anaesthetic management of isolated CP/L repair or combined TOF and palate repair.
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Weng, Yi-Ming, Yu-Che Chang, Te-Fa Chiu, and Chia-Sui Weng. "Tet spell in an adult." American Journal of Emergency Medicine 27, no. 1 (2009): 130.e3–130.e5. http://dx.doi.org/10.1016/j.ajem.2008.04.023.
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Evans-Berro, Elizabeth A. "How to Defeat a 'Tet Spell'." American Journal of Nursing 91, no. 7 (1991): 46. http://dx.doi.org/10.2307/3426474.
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Evans-Berro, Elizabeth A. "HOW TO DEFEAT A TET SPELL." AJN, American Journal of Nursing 91, no. 7 (1991): 46–47. http://dx.doi.org/10.1097/00000446-199107000-00023.
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Gawalkar, Atit A. "Management of Tet Spell –an updated Review." Current Research in Emergency Medicine (CREM) 1, no. 1 (2021): 1–2. http://dx.doi.org/10.54026/crem/1002.
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Goh, Kian-Peng, S. Tavintharan, and Raja C. Rajasoorya. "Diabetes, Dizzy Spells, and Erectile Dysfunction as Presenting Symptoms in a Patient With Pheochromocytoma." Endocrinologist 16, no. 2 (2006): 69–72. http://dx.doi.org/10.1097/01.ten.0000203731.62695.9a.
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Kawooya, Ronald. "Accomplishments of Tea Research in Uganda in the Year 2019." European Journal of Agriculture and Food Sciences 3, no. 1 (2021): 75–78. http://dx.doi.org/10.24018/ejfood.2021.3.1.214.
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Tea is Uganda’s third most important export earner and oscillates between coffee and fish. The current production in the country is 59,000 tonnes of made tea per year, earning 104 million United States Dollars to the Uganda’s economy. Despite its importance to Uganda, the tea sector is faced with a number of constraints that include rising production costs, age of tea bushes, high overhead costs, poor agronomic agricultural practices, pests and diseases, low genetic potential, poor seed system, low labour productivity,and climate change. Since the collapse of Tea Research Institute of East Africa, tea research in Uganda has been dormant for three decades, due to limitations in tea experts, finance, and infrastructure. This review paper highlights the current tea research accomplishments made with the help of government of Uganda Agricultural Technology and Agribusiness Advisory Service (ATAAS) funding. These endeavors include: a) Genetic structure of tea diversity in Uganda has been determined, b) Characterization of tea clones with desirable attributes initiated, c) Soil nutrient up take of tea clones has been determined, d) Screening tea clones for resistance to Xylaria and Armillaria diseases and e) Tea dissemination material accomplished. This paper further spells out the future perspective and strategic intervention of tea research in Uganda.
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Md, Mizanur Rahman, Md. Nazrul Islam, Md. Rakib Hossain, and Mohammad Ahmmed Ali. "Statistical Association between Temperature-Rainfall and Tea Yield at Sylhet Malnicherra Tea Estate: An Empirical Analysis." Jahangirnagar Review, Part II, Social Sciences XLI (December 31, 2017): 1–13. https://doi.org/10.5281/zenodo.4392205.
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Tea is one of the most important cash crops in Bangladesh, playing a significant role in food security, poverty alleviation, employment, and the economy. As a rain-fed crop, tea cultivation depends on micro-climatic conditions for optimal growth. Bangladesh observed extreme weather and climate events over the last couple of decades. Bangladesh is experiencing the frequency of climate variations and extreme weather events, like prolonged drought, heavy rainfall, and late winter spells. The study area was carried out at Malnicherra tea estate in Sylhet district to correlate the micro-climatic variables to tea productivity. The study also examines the trend of micro-climatic variables like maximum temperature, minimum temperature, and rainfall by using the time series data from 2012 to 2017. The simple linear regressions reveal that temperature and rainfall influence tea production. Tea production was negatively impacted by drought and excessive rainfall. Heavy rains eroded the top fertile soil and washed away soil nutrients. The yield of tea leaf was declining at the rate of 110.8 kg/ha/year. There was a high negative relationship between mean maximum temperature and yield of tea. The study recommends an integrated adaptive measure to minimize adverse effects.
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Zhang, Xu, Xinyu Zhu, and Rongyang Wang. "Simulation and Identification of Multiscale Falling Morphology of Fresh Tea Leaves at Different Transport Speeds Based on Discrete Element Method." HortScience 59, no. 2 (2024): 167–72. http://dx.doi.org/10.21273/hortsci17548-23.
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To explore the falling morphology of multiscale fresh tea leaves at different speeds, this study evaluated the multiscale fresh tea leaves (one bud with two leaves, one bud with one leaf, single leaf, and damaged leaf) at different heights (0.7 m, 0.5 m, 0.3 m, and 0.1 m from the ground) during the process of dropping on the conveyor belt at different speeds (0.6 m/s and 1.2 m/s). The motion morphology of fresh tea leaves on multiple scales was analyzed by discrete element simulation, the results showed that the movement patterns of multiscale fresh tea leaves at different positions from the ground were different when the conveyor was dropping at different speeds, and that the multiscale fresh tea leaves all rotated around the long axis, short axis, and root of the fresh tea leaves. When the conveying speed of the conveyor belt was 0.6 m/s, the movement patterns of one bud with two leaves and of one bud with one leaf of fresh tea were near the ground, and the movement patterns of the fresh tea leaves were mostly oriented toward the ground. The leaf tips of the fresh tea leaves were mostly on the side near the ground, the damaged leaves were near the ground, and the movement patterns of the fresh tea leaves were mostly parallel to the ground. When the conveyor belt throwing speed was 1.2 m/s, the roots of one bud with two leaves moved toward the ground when they were close to the ground. When one bud with one leaf was close to the ground, the leaf tip moved toward the ground, and the single leaf and damaged leaf rotated around the root because of the inertia of the conveyor belt throwing.
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Douglas, H., P. Pillay, and A. K. Ziarani. "Broken Rotor Bar Detection in Induction Machines With Transient Operating Speeds." IEEE Transactions on Energy Conversion 20, no. 1 (2005): 135–41. http://dx.doi.org/10.1109/tec.2004.842394.
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Rekha, Nianthi K.W.G. "Climatic variability associated with tea cultivation: A case study of Nuwaraeliya Pedro Tea Estate in Sri Lanka." International Journal of Case Studies 5, no. 9 (2016): 193–98. https://doi.org/10.5281/zenodo.3533528.
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The tea cultivation highly depends on the prevailing weather conditions and is extremely sensitive to climate variability and changes both short and long term. The excessive rainfall and high temperature can cause the low productivity and low quality of the tea. This study has attempted to understand the perception of tea estate workers about the impact of climate variability and change on tea cultivation in Pedro tea estate which is the highest tea estate located about 3 km east of Nuwaraeliy in Sri Lanka. James Tailor has established this tea estate in 1885 and it had 668.38 hectares with the elevation about 1910 m. But the tea areas extent is now decreased due to various factors. The main objective of this study is to identify the public perception of tea working community towards the climate variability and change on tea cultivation and compare with some original climate data analysis. The primary data have been collected from a questionnaire survey, observations and focus group interviews with tea estate community. Rapid Rural Participatory Appraisal is used to gather for further information. 25 tea estate workers were randomly selected for the survey. Focused group discussions are also held with tea estate manager and other officers to get an in-depth preview of the impact of climate variability on tea cultivation. Two field surveys have been conducted in the month of October 2011 and February 2015. The experiences gain from both field surveys is added to the results and discussions where necessary. The climate data of rainfall and temperature have been collected from various secondary reports and Department of Meteorology, and analyzed through the various statistical methods. Questionnaire data is tabulated, coded and analyzed using various graphical methods. Increases of temperature, dry spells, frequency of drought, high intensity of rainfall, soil water deficit and dry soil condition have affected the tea cultivation in the study area. Planting of the drought tolerance tea, growing of high shade trees, introduce rainwater harvesting, proper land preparation, and soil moisture conservation practices can be introduced in the study area. Adaptation practiced should be encouraged because preliminary assessments showed that climate variability will have a significant impact on future tea cultivation of high elevation in Sri Lanka.
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Zhai, Chengbo, Yi Liu, Liyong Du, Dongxue Wang, and Mingzhe Zhang. "Novel malonic acid assisted synthesized porous Fe2O3 microspheres for ultra-fast response and recovery toward triethylamine." New Journal of Chemistry 44, no. 15 (2020): 5929–36. http://dx.doi.org/10.1039/d0nj00070a.
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Chang, Cong, Kai Huang, Quanming Lu, et al. "Electrostatic Solitary Waves and Electron-beam Instabilities in the Separatrix Region of Magnetic Reconnection." Astrophysical Journal 933, no. 1 (2022): 67. http://dx.doi.org/10.3847/1538-4357/ac738d.
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Abstract Using 2D particle-in-cell (PIC) simulations, the generation of electrostatic solitary waves (ESWs) and the associated plasma waves in symmetric magnetic reconnection are studied, and multiple kinds of ESWs with different propagating speeds are identified. Near the current sheet in the outflow region, there are two kinds of ESWs propagating away from the X line: their propagating speeds are about 0.73V Te0 and 1.2V Te0 (where V Te0 is the initial electron thermal velocity), and their generation is associated with the Buneman instability and the electron two-stream instability, respectively. In the separatrix region, there is one kind of ESW propagating toward the X line with a propagating speed of about 1.2 V Te0, which is formed during the nonlinear evolution of the electron two-stream instability. We also run a case with a guide field, and there exist two kinds of ESWs: the ESWs propagating away from the X line can be generated near the separatrices with electron outflow, while the ESWs propagating toward the X line can be generated near the separatrices with electron inflow. The two kinds of ESWs are associated with the electron two-stream instability and the Buneman instability, respectively.
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Smith, Andrew N., Shady M. Gadoue, and John W. Finch. "Improved Rotor Flux Estimation at Low Speeds for Torque MRAS-Based Sensorless Induction Motor Drives." IEEE Transactions on Energy Conversion 31, no. 1 (2016): 270–82. http://dx.doi.org/10.1109/tec.2015.2480961.
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Flesch, Jeffrey M., Joy R. Lile, and Mary E. Arnold. "YA4-H! Youth Advocates for Health: Teens as Teachers." Journal of Youth Development 10, no. 2 (2015): 121–24. http://dx.doi.org/10.5195/jyd.2015.414.
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Although the research literature speaks to the necessity of having a high-quality training curriculum for teens as teachers (TAT) programs, there are very few TAT training curricula available to practitioners. This review provides practitioners with a preview of the Youth Advocates for Health (YA4-H!) TAT training curriculum. The YA4-H! TAT training curriculum exposes teens to several domains necessary to teach younger youth effectively, such as getting to know their audience, preparing to teach, teaching tips and tools, reflection and evaluation time, and recruitment strategies to help practitioners select youth to teach. Drawing from published research including Lee and Murdock’s (2001) work on best practices for preparing teen teachers to teach, this review presents an overview of the lesson categories included in the YA4-H! TAT training curriculum.
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Laksono, Gerardo, and Paul L. Tahalele. "CYANOTIC HEART DISEASE: AN OVERVIEW OF TETRALOGY OF FALLOT." Journal of Widya Medika Junior 4, no. 2 (2022): 87–98. http://dx.doi.org/10.33508/jwmj.v4i2.3816.
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Tetralogy of Fallot (TOF) is the most common cyanotic heart disease with anomalies consist of: ventricular septal defect (VSD), overriding aorta, pulmonary stenosis and hypertrophic of the right ventricular. It also has various anomalies type such as TOF with absent pulmonary valve, TOF with pulmonary atresia, TOF with atrioventricular septal defect, TOF with coronary artery anomalies, etc which will be discussed in detail. Proper diagnosis is required when dealing with the TOF continue with radiological examination. Adequate history taking and correct physical examination are necessary in dealing with congenital heart defects, especially TOF case. In this overview, we also discuss about the comprehensive management, from tet spell management, palliative management of TOF that required shunt with various technique, and surgical total corrective of TOF with many approach such as transannular accompany with right ventriculotomy or transatrial with transpulmonary or beating heart surgery technique to prevent reperfusion injury complication.
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Yuan, Jiahui, John D. Cressler, Ramkumar Krithivasan, et al. "On the Performance Limits of Cryogenically Operated SiGe HBTs and Its Relation to Scaling for Terahertz Speeds." IEEE Transactions on Electron Devices 56, no. 5 (2009): 1007–19. http://dx.doi.org/10.1109/ted.2009.2016017.
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Jin, Yuqing, Daming Wu, Ping Ju, Christian Rehtanz, Feng Wu, and Xueping Pan. "Modeling of Wind Speeds Inside a Wind Farm With Application to Wind Farm Aggregate Modeling Considering LVRT Characteristic." IEEE Transactions on Energy Conversion 35, no. 1 (2020): 508–19. http://dx.doi.org/10.1109/tec.2019.2938813.
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Rahman, Md Mizanur. "Effect of Rainfall Pattern on the Tea Production in Bangladesh: An Analysis of Socio-economic Perspectives." Journal of Agroforestry and Environment 15, no. 1 (2022): 43–55. http://dx.doi.org/10.55706/jae1507.
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In Bangladesh, tea is a cash crop that significantly benefits both our economy and food security. Hence, the study aimed to assess the present pattern of tea production and the impacts of rainfall patterns on tea yield and made tea quality. The empirical data was collected from ten tea gardens covering three tea-producing administrative divisions and six districts of Bangladesh. The cost of production and profit-loss were examined to link with rainfall distribution. Likewise, the daily income of permanent workers, the job market of the contractual workers, and the workers' associated welfare were critically analyzed to understand the social impact. The results showed that the Rangpur division faces incremental dryness; in contrast, the Sylhet division exhibited a steady pattern with a high frequency of continuous heavy rainfall. The rainfall pattern of the Chottogram division was highly unpredictable and oscillated. Long spell drought and heavy showers followed by flash floods affect tea yield. According to respondents' perception, the rainfall pattern showed changing behaviours that are not favourable for tea production. The emergence of new pests and deterioration of soil characteristics were reported. Bangladesh enjoyed the most pleasant weather for tea production in 2019. The cost of production increases with the adverse weather, which increases the loss for the growers. Profit loss of growers is a determinant of the welfare of the workers impacting their livelihoods. The organic tea garden is not affected by climatic events. Consequently, the socio-economic conditions of the organic garden are safeguarded. Hence, the study recommends following organic farming to cope with climate change. Differently, it was reported that the intermediaries' hegemony in the market chain is more problematic than climate change. Policy initiatives are warranted to correct the market and to establish gardeners' and consumers' rights.
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Du, Zhe, Yongguang Hu, Yongzong Lu, Jing Pang, and Xinping Li. "Design of Structural Parameters of Cutters for Tea Harvest Based on Biomimetic Methodology." Applied Bionics and Biomechanics 2021 (July 22, 2021): 1–8. http://dx.doi.org/10.1155/2021/8798299.
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Owing to their sharp teeth, crickets can eat through new shoots of the stalks of tea plants. Inspired by the special geometrical structure of the teeth of crickets, this study designed a biomimetic cutter to reduce the force and energy required to cut the stalks of tea plants. Therefore, four biomimetic cutters were considered: a, b, c, and d. Cutter a was a traditional cutter used for comparison with the other three cutters, which were biomimetic. The cutters were manufactured using 3D printing technology and assessed by a texture tester at different loading speeds (5, 10, and 15 mm/s, respectively). The results show that cutter c delivered better performance compared to cutter a at loading speeds of 5, 10, and 15 mm/s, respectively. However, at 15 mm/s loading speed, the maximum cutting forces required for cutters b and c were 9.43% and 6.04% lower, respectively, than that for cutter a (9.021 N). Similarly, the energies consumed by cutters b and c were 13.8% and 4.24% lower than that consumed by cutter a (1.225 J). In addition, cutter c delivered the best results compared to others. Based on the study results, it was concluded that the biomimetic cutters can thus help to optimize the tea harvest.
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Zheng, Zhesong. "Study on Large-Scale Traveling Ionospheric Disturbances During the March 2023 Geomagnetic Storm in the North American and European Sectors." Applied and Computational Engineering 159, no. 1 (2025): 69–76. https://doi.org/10.54254/2755-2721/2025.23742.
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Using global Total Electron Content (TEC) data provided by the Madrigal database, this study investigates large-scale traveling ionospheric disturbances (LSTIDs) observed in the North American and European sectors during the geomagnetic storm on March 23, 2023. A second-order polynomial fitting method was applied to filter residuals, calculate ionospheric disturbance values, and create two-dimensional TEC disturbance maps showing variations across latitude and longitude. The results indicate the observation of multiple LSTIDs originating from the Arctic in both the European and North American sectors. Intense LSTIDs were found to propagate during the daytime in these sectors. In the North American sector, LSTIDs exhibited propagation speeds ranging from 512 to 610 m/s, while in the European sector, the speeds ranged from 575 to 652 m/s. The wave propagation direction in the North American sector averaged approximately 15 degrees southeast of south, whereas in the European sector, the average direction was 15 degrees southwest of south.
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Tai-Her Yeh and Li Wang. "A Study on Generator Capacity for Wind Turbines Under Various Tower Heights and Rated Wind Speeds Using Weibull Distribution." IEEE Transactions on Energy Conversion 23, no. 2 (2008): 592–602. http://dx.doi.org/10.1109/tec.2008.918626.
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A. Santosa, Dhania, and Hamzah Hamzah. "Anestesi untuk Kraniotomi Evakuasi Perdarahan Intraserebral pada Pasien Cedera Otak Traumatik dengan Tetralogy of Fallot." Jurnal Neuroanestesi Indonesia 9, no. 2 (2020): 156–67. http://dx.doi.org/10.24244/jni.v9i3.272.
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Congenital heart disease (CHD) is one of the leading congenital disease with the incidence of 8 patients of 1000 livebirth. Around 85% of patients with CHD is expected to reach adult age in United States of America. Management of traumatic brain injury in patients with CHD requires combination of fine understanding on pathophysiology of CHD and neuroanesthesia technique. A male patient, 17 years of age had a motor vehicle accident and was diagnosed with moderate traumatic brain injury, intracerebral hemorrhage, epidural hemorrhage and cerebral edema with Tetralogy of Fallot, underwent an emergency craniotomy for ICH evacuation. Surgery was done under general anesthesia and lasted for approximately 3 hours. Challenges during anesthesia and surgery include maintaining optimal oxygen delivery, avoiding increase in oxygen demand and preventing catecholamine release which may trigger hypercyanotic tet spell. Patient was observed and ventilator supported in Intensive Observation Ward and was extubated at the same post surgery day. Patient was then observed in the Ward and sent home on the 14th day after the incident.
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Adomah, Eric, Arash Khoda Bakhshi, and Mohamed M. Ahmed. "Safety Impact of Connected Vehicles on Driver Behavior in Rural Work Zones under Foggy Weather Conditions." Transportation Research Record: Journal of the Transportation Research Board 2676, no. 3 (2021): 88–107. http://dx.doi.org/10.1177/03611981211049147.
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Work zone safety is one of the paramount goals of the safety community. Safety in WZs is a particular concern under foggy conditions as they represent an exogenous factor contributing to high variability in driver behavior. In line with the Connected Vehicle (CV) Pilot Deployment Program on Interstate-80 (I-80) in Wyoming, this study investigates the safety benefits of CV Work Zone Warning (WZW) applications on driver behavior during foggy weather conditions. A work zone (WZ) was simulated using VISSIM in four sequential areas, including the advance warning, transition, activity, and termination area. The effect of drivers’ increased situational awareness under the effect of WZW was calibrated in VISSIM based on the results of a high-fidelity driving simulator experiment. Various Surrogate Measures of Safety (SMoS), including Time-To-Collision (TTC), Time Exposed Time-to-collision (TET), Time-Integrated Time-to-collision (TIT), and Modified Deceleration Rate to Avoid Crash (MDRAC), were employed to quantify the safety performance of CVs under varying CV Market Penetration Rates (MPRs). According to the results of TTC and MDRAC, it was found that an increase in CV-MPR enhances the safety performance of the WZ area. Findings showed that, under foggy weather conditions, the advance warning area had the highest TIT and TET values. Furthermore, it was revealed that an increase in MPR of up to 60% on I-80 would reduce mean speeds and the standard deviation of speed at each of the WZ areas, leading to more speed harmonization and minimizing the crash risk in WZs.
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Zheng, Yangyang, Wenxian Yang, Kexiang Wei, Yanling Chen, and Hongxiang Zou. "Enhancing Efficiency and Reliability of Tidal Stream Energy Conversion through Swept-Blade Design." Energies 17, no. 2 (2024): 334. http://dx.doi.org/10.3390/en17020334.
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The current limited efficiency and reliability of tidal current turbines (TCTs) have posed significant challenges in effectively harnessing tidal stream energy. To address this issue, this paper undertakes both numerical and experimental studies to explore the advantages of swept blades over conventional straight blades in terms of energy capture efficiency and cavitation resistance. It is found that both the sweep length and sweep angle of the blade can influence the power generation efficiency of the TCT. For the particular swept blade investigated in this study, the highest power coefficient is achieved when the sweep length is 0.544 m and the sweep angle is 28.88°. The research also demonstrated that the swept-blade TCT shows a higher power generation efficiency than the straight-blade TCT across a broad range of rotor speeds. To be precise, with the swept blades, the power coefficient of the TCT can be improved by 5–17%, depending on the tip speed ratio. Additionally, swept blades exhibit a superior cavitation resistance. This is evidenced by their higher cavitation numbers across all tip speed ratios in comparison to conventional straight blades.
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Zhao, Pengyu, Xiaoyong Wang, Kai Zhang, Yanliang Jin, and Guoxin Zheng. "Doppler Modeling and Simulation of Train-to-Train Communication in Metro Tunnel Environment." Sensors 22, no. 11 (2022): 4289. http://dx.doi.org/10.3390/s22114289.
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The communication system of urban rail transit is gradually changing from train-to-ground (T2G) to train-to-train (T2T) communication. The subway can travel at speeds of up to 200 km/h in the tunnel environment, and communication between trains can be conducted via millimeter waves with minimum latency. A precise channel model is required to test the reliability of T2T communication over a non-line-of-sight (NLoS) Doppler channel in a tunnel scenario. In this paper, the description of the ray angle for a T2T communication terminal is established, and the mapping relationship of the multipath signals from the transmitter to the receiver is established. The channel parameters including the angle, amplitude, and mapping matrix from the transmitter to the receiver are obtained by the ray-tracing method. In addition, the channel model for the T2T communication system with multipath propagations is constructed. The Doppler spread simulation results in this paper are consistent with the RT simulation results. A channel physics modelling approach using an IQ vector phase shifter to achieve Doppler spread in the RF domain is proposed when paired with the Doppler spread model.
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Rudnicki, Mark, Victor J. Lieffers, and Uldis Silins. "Stand structure governs the crown collisions of lodgepole pine." Canadian Journal of Forest Research 33, no. 7 (2003): 1238–44. http://dx.doi.org/10.1139/x03-055.
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We investigated tree sway and crown collision behavior of even-aged lodgepole pine (Pinus contorta Dougl. ex Loud. var. latifolia Engelm.) stands of different structure in Alberta, Canada, to examine how these factors might affect loss of leaf area as stands mature. The Two Creeks stand (TC) had high density and slender trees, while the Chickadee stand (CH) had stout trees. The TC stand was then thinned (TCT) to reduce the stand density. For each stand, simultaneous tree sways of a group of 10 trees were monitored with biaxial clinometers during wind speed of 5 m/s (canopy top). Crown collisions were reconstructed by combining sway displacement of individual trees with their respective crown dimensions. Comparing the sway statistics between stands with contrasting mean bole slenderness (TC and CH) indicated that more slender trees have greater sway displacements, faster sway speeds, and a greater depth of collision. Disturbance by thinning increased sway displacements, sway speeds, and depth of collisions at TCT. Tree sway patterns were circular in shape and not aligned with wind direction, but patterns were elongated after thinning. This demonstrates the high frequency of crown collision experienced by stands with slender trees and supports the notion that crown collisions result in empty space between crowns of trees.
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Joseph, Pushpa. "But, Why Aren't We Listening? When Silence Speaks." Jnanadeepa: Pune Journal of Religious Studies July-Dec 2007, Vol 10/2 (2007): 65–82. https://doi.org/10.5281/zenodo.4284765.
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Interdependence is and ought to be as much the ideal of humanity as self-sufficiency. Human beings are social be­- ings. Without interrelation with society and with the cosmic world, humanity cannot realize its oneness with the universe. It is social interdependence that enables humans to test their faith and to prove themselves on the touchstone of reality. Femi­ nism as a movement, ideology and a way of life also empha­- sizes values like mutuality, co-responsibility and partnership leading to a genuine interdependence between men and women. Building on this theme of interdependence, feminism from the grassroots argues that stories of women’s agency and resistance are crucial in understanding the globe. In a world of growing interconnectedness we are coming to realize more and more that women’s destinies are tied up with men’s, the dalit woman’s freedom is inextricably bound to that of the Brahmin woman. Feminism thus emphasizes the significance of the relational and the narrative self, that can only exist and persist through relations with others and as a being that can cause change, can —be recognized and can tell its story. The author shows that behind the facade of imposed silences there are life-giving testimonies of power emerging in and through the dynamic gestures of the powerless. Transforming these gestures into hope-filled visions is the task of the Chris­ tian theologian. Such a task demands our collective attention in the interest of liberating and empowering listening.
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Putrawan, Bobby Kurnia, and Edward Everson Hanock. "Abraham's Legacy: Togetherness of Christian and Islamic Faith." Jurnal Theologia 33, no. 1 (2022): 19–34. http://dx.doi.org/10.21580/teo.2022.33.1.10575.
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This article is a study about Abraham, known as the ancestor obtained by Isaac and Ishmael. His offspring are already widespread. With all the inheritance given to them, get Abraham to start life in a different land and with different blessings. Here is the crucial point. The difference seems to have proved the fact that as a result of Abraham coming from fellowship and brotherhood remain intertwined and maintained, because these two things are also Abraham's legacy. Through literature studies, some data about Abraham are described in a narrative manner with the aim of being based on Abraham's inheritance, namely blessings, descent and land implemented correctly and proportionally. What is presented in this review article on two dimensions of inheritance: spiritual and community. Spiritual, from a biblical perspective, speaks of a promise, while the community is more towards the vision of sociology and managerial pluralism
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Annisa, Mutiara, Puteri Aulia Rizqi Kanina, Nur Liyana Binti Hamid, and Archadian Nuryanti. "<strong>Effectiveness of green tea, bay leaf, and lime peel extracts as toothpastes active agents for extrinsic stain removal on teeth, artificial teeth, and denture base</strong>." Padjadjaran Journal of Dentistry 34, no. 1 (2022): 47. http://dx.doi.org/10.24198/pjd.vol34no1.32236.
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Introduction: Tea consumption causes extrinsic stain formation on teeth and denture surfaces, affecting personal appearance. Herbal plants extract such as green tea, bay leaf, and lime peel are potentially active agents for extrinsic stain removal. This study aimed to analyse the effectiveness of green tea, bay leaf, and lime peel extracts as toothpaste active agents for extrinsic stain removal on teeth, artificial teeth, and denture base. Methods: Twenty-five post-extracted human permanent central incisors, 25 artificial teeth, and 25 heat polymerised acrylic resin denture base (20x20x10mm) were divided into three treatment groups and two control groups. Pictures of all specimens were taken before and after stain induction and after brushing. All specimens were immersed in a tea solution made from 2 grams of tea and 100ml of 100°C boiled water to induce extrinsic stain. The immersion process was repeated every 24 hours for seven days. All specimens were then brushed using an automatic toothbrushing machine for 70 seconds on each surface, 200 grams loads, and five speeds/second. Toothpaste used for brushing were three different active agent toothpaste (treatment groups), no active agent toothpaste, and commercial whitening (control groups). Colour index analysis of the specimen pictures computerised by CIELAB method. The data were analysed by one-way ANOVA (α=0.05). Results: Green tea, bay leaf, and lime peel extract toothpaste and positive control had higher L-values of extrinsic stain removal than essential toothpaste on all specimens. There was a significant difference between green tea, bay leaf, and lime peel extract toothpaste and negative control toothpaste (p<0.05), while no significant difference was found when compared to the positive control toothpaste (p>0.05). Conclusion: Green tea, bay leaf, and lime peel extract toothpaste are effective as extrinsic stain removal on teeth and acrylic resin denture base because of abrasive materials that work together with the active agents such as epigallocatechin-3-gallate (EGCG) in green tea, eugenol in bay leaf, and naringin in lime peel.
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Zhang, Shihao, Hekai Yang, Chunhua Yang, et al. "Edge Device Detection of Tea Leaves with One Bud and Two Leaves Based on ShuffleNetv2-YOLOv5-Lite-E." Agronomy 13, no. 2 (2023): 577. http://dx.doi.org/10.3390/agronomy13020577.
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In order to solve the problem of an accurate recognition of tea picking through tea picking robots, an edge device detection method is proposed in this paper based on ShuffleNetv2-YOLOv5-Lite-E for tea with one bud and two leaves. This replaces the original feature extraction network by removing the Focus layer and using the ShuffleNetv2 algorithm, followed by a channel pruning of YOLOv5 at the neck layer head, thus achieving the purpose of reducing the model size. The results show that the size of the improved generated weight file is 27% of that of the original YOLOv5 model, and the mAP value of ShuffleNetv2-YOLOv5-Lite-E is 97.43% and 94.52% on the pc and edge device respectively, which are 1.32% and 1.75% lower compared to that of the original YOLOv5 model. The detection speeds of ShuffleNetv2-YOLOv5-Lite-E, YOLOv5, YOLOv4, and YOLOv3 were 8.6 fps, 2.7 fps, 3.2 fps, and 3.4 fps respectively after importing the models into an edge device, and the improved YOLOv5 detection speed was 3.2 times faster than that of the original YOLOv5 model. Through the detection method, the size of the original YOLOv5 model is effectively reduced while essentially ensuring recognition accuracy. The detection speed is also significantly improved, which is conducive to the realization of intelligent and accurate picking for future tea gardens, laying a solid foundation for the realization of tea picking robots.
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Jahrami, Haitham, Mana Al-Mutarid, Peter E. Penson, Mo’ez Al-Islam Faris, Zahra Saif, and Layla Hammad. "Intake of Caffeine and Its Association with Physical and Mental Health Status among University Students in Bahrain." Foods 9, no. 4 (2020): 473. http://dx.doi.org/10.3390/foods9040473.
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In Western populations, the caffeine intake of young adults has received significant attention in the research literature; our knowledge in other societies remained limited. The objective of this research is to quantify the amount of ingested caffeine and how this is related to measures of physical and mental health in a Bahraini population. A semi-quantitative food frequency questionnaire was used to estimate caffeine intake from coffee, tea, cocoa, soft drinks, energy drinks, chocolates, and over-the-counter medications. Associations between caffeine intake, demographic variables and 25 symptoms measured using the Hopkins Symptoms Checklist-25 were examined. A convenience sample of university students in Bahrain (n = 727) was surveyed. Caffeine, in any form, was consumed by 98% of students. Mean daily caffeine consumption was 268 mg/day, with males consuming more than females. Coffee was the main source of caffeine intake, followed by black tea and energy drinks. Participants consuming 400 mg/day or more showed a statistically and significantly twice as high risk for five symptoms, these were: headaches, spells of terror or panic, feeling trapped or caught, worrying too much about things, and having feelings of worthlessness. The prevalence of caffeine intake among university students in Bahrain is high. The overall mean intake of caffeine from all sources by university students was within levels considered to be acceptable by many dietary recommendations. High caffeine intake was associated with an anxiogenic effect in the surveyed students.
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Mehta, Kishor C. "Development of the EF-Scale for Tornado Intensity." Journal of Disaster Research 8, no. 6 (2013): 1034–41. http://dx.doi.org/10.20965/jdr.2013.p1034.
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Tornado intensity in terms of wind speed is rated indirectly from building and structure damage because random nature and the short life of tornadic storms make measurements difficult. The Enhanced Fujita EF-scale was developed with a consensus among meteorologists, engineers and insurance personnel to rate tornadoes. The EF-scale uses 28 different damage indicators (DI) and several degrees of damage (DOD) for each DI. The elicitation process is used to assign wind speeds, expected, upper, and lower bound, for each DOD in every DI. The paper contains documentation of the development process of the EF-scale and the motivation for the same with background of the Fscale. Wind speeds in the F-scale and the EF-scale are correlated to preserve the previous database. The EFscale overcomes the shortcomings of the F-scale, developed by Dr. Ted Fujita in 1971, of too few damage indicators, postulation of damage irrespective of building characteristics, and the high wind speeds assigned to F4 and F5 ratings. The US National Weather Service implemented use of the EF-scale beginning February 2007.
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García, Ricardo, Matías Irarrázaval, Isabel López, Sofía Riesle, Marcia Cabezas, and Andrea Moyano. "Encuesta para cuidadores de personas del espectro autista en Chile: primeras preocupaciones, edad del diagnóstico y características clínicas." Andes Pediatrica 92, no. 1 (2021): 25. http://dx.doi.org/10.32641/andespediatr.v92i1.2307.
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Los Trastornos del Espectro Autista (TEA) son desórdenes del neurodesarrollo de prevalencia en aumento. Las personas TEA tienen múltiples necesidades de salud, educación y comunitarias. En Chile existe escasa información al respecto.Objetivo: Conocer características demográficas, clínicas, primeras preocupaciones de sus cuidadores y la edad de diagnóstico de personas TEA.Pacientes y Método: Participaron padres/cuidadores de personas TEA, quienes respondieron la Encuesta de Necesidades de Cuidadores, desarrollada por Autism Speaks para este propósito específico y traducida al español. La encuesta comprende 4 secciones: información demográfica, características de la persona TEA, utilización pasada y presente de Servicios de Salud y Educación y percepciones de Padres/Cuidadores en cuanto a satisfacción, impacto, estigma, y calidad de vida. Aquí se reporta información proveniente de las dos primeras secciones.Resultados: Participaron 291 cuidadores (86% madres) de 291 personas TEA, 89% varones, de entre 1-40 años (X: 10,4 DE: 6,1). La edad promedio de primeras preocupaciones fue 29,2 m (DE: 23,8) y las principales fueron: dificultades en interacción (79,4%), respuesta inusual a estímulos sensoriales (69,8%), dificultades de comportamiento (65,3%), gestos/ movimientos inusuales (64,3%), falta de contacto visual (63,6%). La edad promedio de diagnóstico fue 58 m (DE: 36,5), con retraso promedio del diagnóstico de 29 m. El diagnóstico fue realizado por neurólogos pediátricos (44,7%), psiquiatras infantiles (19,2%), pediatras (5,5%). Las comorbilidades más frecuentes fueron compromiso de lenguaje, déficit cognitivo y problemas conductuales.Conclusiones: La tardía edad de diagnóstico y la gran brecha entre edad de primeras preocupaciones y diagnóstico de TEA representan una pérdida crítica de oportunidades de tratamiento, lo que puede poner en riesgo las posibilidades de un mejor pronóstico futuro.
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Ahern, Christopher A., Amy L. Eastwood, Dennis A. Dougherty, and Richard Horn. "An electrostatic interaction between TEA and an introduced pore aromatic drives spring-in-the-door inactivation in Shaker potassium channels." Journal of General Physiology 134, no. 6 (2009): 461–69. http://dx.doi.org/10.1085/jgp.200910260.
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Slow inactivation of Kv1 channels involves conformational changes near the selectivity filter. We examine such changes in Shaker channels lacking fast inactivation by considering the consequences of mutating two residues, T449 just external to the selectivity filter and V438 in the pore helix near the bottom of the selectivity filter. Single mutant T449F channels with the native V438 inactivate very slowly, and the canonical foot-in-the-door effect of extracellular tetraethylammonium (TEA) is not only absent, but the time course of slow inactivation is accelerated by TEA. The V438A mutation dramatically speeds inactivation in T449F channels, and TEA slows inactivation exactly as predicted by the foot-in-the-door model. We propose that TEA has this effect on V438A/T449F channels because the V438A mutation produces allosteric consequences within the selectivity filter and may reorient the aromatic ring at position 449. We investigated the possibility that the blocker promotes the collapse of the outer vestibule (spring-in-the-door) in single mutant T449F channels by an electrostatic attraction between a cationic TEA and the quadrupole moments of the four aromatic rings. To test this idea, we used in vivo nonsense suppression to serially fluorinate the introduced aromatic ring at the 449 position, a manipulation that withdraws electrons from the aromatic face with little effect on the shape, net charge, or hydrophobicity of the aromatic ring. Progressive fluorination causes monotonically enhanced rates of inactivation. In further agreement with our working hypothesis, increasing fluorination of the aromatic gradually transforms the TEA effect from spring-in-the-door to foot-in-the-door. We further substantiate our electrostatic hypothesis by quantum mechanical calculations.
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Paliichuk, E., and Yu Lukina. "Stylistic devices for creating humorous effect: an empirical research (based on Ted Talks case study)." Studia Philologica 1, no. 14 (2020): 60–67. http://dx.doi.org/10.28925/2311-2425.2020.149.
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The stylistic analysis is a preliminary stage to define the pragmatic potential of the TED Talks texts. The most recurrent literary devices used in the talks are pun, irony, oxymoron, epithet, metaphor, parallel constructions, periphrasis, zeugma, chiasmus, etc. It is assumed that the TED Talks texts are saturated with stylistically coloured verbal means, which ensure the self-sustainability of such texts in terms of their influence of the audience. To verify the hypothesis, an experiment has been conducted, with 40 participants aged 21-37, all students are from the Institute of Philology of Borys Grinchenko Kyiv University. The two groups of participants (text (transcript) / video) answered the same questions aimed at evaluating the TED Talks in terms of being witty, ironic, sarcastic, humorous, as well as in terms of the change in the emotional state of the readers and viewers, and in terms of the emotions (feeling bored, upset, cheerful, laughing, glad, inspired, enthusiastic) the respondents felt after they were shown a video or proposed to read a transcript. The findings demonstrate the degree of differences in responses between the groups (text / video), which speaks for sustainability of textual level of presentation in evoking certain emotions due to specific combination of verbal means and thus support the hypothesis as to high degree of pragmatic potential of TED Talks texts in creating humor effects.
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Brânzei, Simina. "Tit-for-tat dynamics and market volatility." Nonlinearity 37, no. 3 (2024): 035006. http://dx.doi.org/10.1088/1361-6544/ad1e26.
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Abstract We consider tit-for-tat dynamics in production markets, where there is a set of n players connected via a weighted graph. Each player i can produce an eponymous good using its linear production function, given as input various amounts of goods in the system. In the tit-for-tat dynamic, each player i shares its good with its neighbours in fractions proportional to how much they helped player i’s production in the last round. Our contribution is to characterize the asymptotic behaviour of the dynamic as a function of the graph structure, finding that the fortune of a player grows in the long term if and only if the player has a good self loop (i.e. the player works well alone) or works well with at least one other player. We also consider a generalized damped update, where the players may update their strategies with different speeds, and obtain a lower bound on their rate of growth by identifying a function that gives insight into the behaviour of the dynamical system. The model can capture circular economies, where players use each other’s products, and organizational partnerships, where fostering long-term growth of an organization hinges on creating relationships in which reciprocal exchanges between the agents in the organization are paramount.
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Wen, Yiduo, and Shuanggen Jin. "Traveling Ionospheric Disturbances Characteristics during the 2018 Typhoon Maria from GPS Observations." Remote Sensing 12, no. 4 (2020): 746. http://dx.doi.org/10.3390/rs12040746.
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Typhoons often occur and may cause huge loss of life and damage of infrastructures, but they are still difficult to precisely monitor and predict by traditional in-situ measurements. Nowadays, ionospheric disturbances at a large-scale following typhoons can be monitored using ground-based dual-frequency Global Positioning System (GPS) observations. In this paper the responses of ionospheric total electron content (TEC) to Typhoon Maria on 10 July 2018 are studied by using about 150 stations of the GPS network in Taiwan. The results show that two significant ionospheric disturbances on the southwest side of the typhoon eye were found between 10:00 and 12:00 UTC. This was the stage of severe typhoon and the ionospheric disturbances propagated at speeds of 118.09 and 186.17 m/s, respectively. Both traveling ionospheric disturbances reached up to 0.2 TECU and the amplitudes were slightly different. The change in the filtered TEC time series during the typhoon was further analyzed with the azimuth. It can be seen that the TEC disturbance anomalies were primarily concentrated in a range of between −0.2 and 0.2 TECU and mainly located at 135–300° in the azimuth, namely the southwest side of the typhoon eye. The corresponding frequency spectrum of the two TEC time series was about 1.6 mHz, which is consistent with the frequency of gravity waves. Therefore, the upward propagating gravity wave was the main cause of the traveling ionospheric disturbance during Typhoon Maria.
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Moslem, Dr Lt Col Mir Hasan Md, Dr Brig Gen (Rtd) Nurunnahar Fatema Begum, Dr Col Ferdousur Rahman Sarker, et al. "Outcome of Management of Tetralogy of Fallot in a Cardiac Center of a Tertiary Care Hospital in Bangladesh." Scholars Journal of Applied Medical Sciences 11, no. 04 (2023): 710–17. http://dx.doi.org/10.36347/sjams.2023.v11i04.007.
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Background: Congenital heart diseases (CHD) represent one of the major groups of birth defects and make up approximately 1% of human malformations. Incidence of congenital heart disease is 8-10/1000 live births. The incidence is higher in premature infants. In Bangladesh incidence of congenital heart diseases was found up to 25/1000 live birth in a one year study conducted in CMH Dhaka. Congenital cyanotic heart disease accounts for less than 25% of total congenital cardiac defects. In TOF the lungs are under-perfused as blood shunts from right to left bypassing the lungs. TOF constitutes 5-7% of congenital heart disease. It is the commonest congenital cyanotic heart disease in Bangladesh. Objective: The aim of this study was to assess outcome of management of Tetralogy of Fallot in a cardiac center of a tertiary care hospital in Bangladesh. Methodology: It was a retrospective observational study and was conducted in the department of Pediatric Cardiology of Combined Military Hospital (CMH), Dhaka, Bangladesh from January 2015 to December 2016. We included 50 patients with TOF taking treatment from our department. All the patients were divided into three groups according to treatment type. Medical management group, palliative surgery group and total intra cardiac repair group and their outcome were assessed. Results: In our study we found 6 (12%) patients were in medical management group, 8 (16%) were in palliative surgery group and 36 (72%) were in total intra cardiac repair group. Among them 33 (66%) were male and 17 (34%) were female. Majority patients 30 (60%) were in less than 3 years of age. In medical management group all the patients had oxygen saturation <80%, 4 (66.68%) patients reduced frequency of hyper-cyanotic spell, 1 (16.67%) patient had cerebral abscess. In palliative surgery group 6 (75%) patients had >90% oxygen saturation, 2 (25%) had <90% oxygen saturation, tet spell reduced in all the cases. After total intra cardiac repair no patient had .....
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Akshata, Upadhye. "A Comprehensive Survey of Text Data Cleaning Techniques: Challenges, Methods, and Best Practices." Journal of Scientific and Engineering Research 7, no. 8 (2020): 205–10. https://doi.org/10.5281/zenodo.10902955.
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<strong>Abstract </strong>Text data cleaning is a crucial preprocessing step in natural language processing (NLP) and text data analysis aimed at improving the quality, reliability, and usability of textual information. This paper presents a comprehensive survey of text data cleaning techniques useful in addressing the challenges encountered, discusses the methodologies used, and provides best practices and recommendations for effective text data cleaning. The paper begins by highlighting the importance of text data cleaning in the context of NLP and data preprocessing. It emphasizes the impact of noisy and inconsistent text data on the performance of NLP tasks such as sentiment analysis, text classification & clustering, and information retrieval. Challenges in text data cleaning, including noise from typographical errors, inconsistencies in formatting, handling missing data, and language specific nuances, which are discussed in detail. The paper then provides an overview of various text data cleaning techniques by categorizing them based on their objectives and methodologies. Techniques such as text normalization, tokenization, stemming, lemmatization, stopword removal, spell checking, regular expressions, named entity recognition, and handling missing data are explored. Additionally, the paper discusses the importance of adding n-grams during the cleaning process.Through evaluation and comparative analysis, the effectiveness of different cleaning techniques is assessed, highlighting their impact on task accuracy, efficiency, and robustness. Case studies are discussed to demonstrate the practical applications of text data cleaning, including improving search relevancy and ranking in ecommerce platforms and enhancing the quality of language models and embeddings for downstream NLP tasks. Therefore this paper underscores the critical role of text data cleaning in enabling meaningful insights and knowledge extraction from textual information.
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Kottenhoff, Karl. "Passenger Train Design for Increased Competitiveness." Transportation Research Record: Journal of the Transportation Research Board 1623, no. 1 (1998): 144–51. http://dx.doi.org/10.3141/1623-19.
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Passenger trains have great potential to increase their market share, provided that good conditions are created for train traffic. This has been proven by modern, comfortable trains with good on-board service, high speed, and fewer quality shortcomings. One serious threat is that high ticket prices limit demand. Efficiency has to be increased. Operating costs can be reduced using modular train configurations, increased space utilization, double-deckers, or wide trains and higher speeds. The last example, higher speeds, also increases the attractiveness of traveling by train. Other factors to increase attractiveness—where stated preference interviews show that passengers’ willingness to pay is high—include low noise and vibration levels, good ventilation (air-conditioning), varied seat configuration with adjustable seats, play areas for children, and service attributes, such as radio/music outlets at seats and free coffee and tea in each car. The impression of modernity itself also plays an important role in enhancing the level of attractiveness.
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Bastidas-Rodriguez, Juan David, Carlos Andres Ramos-Paja, and Andres Julian Saavedra-Montes. "Implicit Mathematical Model of Photovoltaic Arrays with Improved Calculation Speed Based on Inflection Points of the Current–Voltage Curves." Energies 16, no. 13 (2023): 4875. http://dx.doi.org/10.3390/en16134875.
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Dynamic reconfiguration, the monitoring of power production, and the fault diagnosis of photovoltaic arrays, among other applications, require fast and accurate models of photovoltaic arrays. In the literature, some models use the Lambert-W function to represent each module of the array, which increases the calculation time. Other models that use implicit equations to avoid the Lambert-W function do not use the inflection voltages to simplify the system of nonlinear equations that represent the array, increasing the computational burden. Therefore, this paper proposes mathematical models for series-parallel (SP) and total-cross-tied (TCT) photovoltaic arrays based on the implicit equations of the single-diode model and the inflection points of the current–voltage curves. These models decrease the calculation time by reducing the complexity of the nonlinear equation systems that represent each string of SP arrays and the whole TCT. Consequently, the calculation process that solves the model speeds up in comparison with processes that solve traditional explicit models based on the Lambert-W function. The results of several simulation scenarios using the proposed SP model with different array sizes show a reduction in the computation time by 82.97% in contrast with the traditional solution. Additionally, when the proposed TCT model for arrays larger than 2×2 is used, the reduction in the computation time is between 47.71% and 92.28%. In dynamic reconfiguration, the results demonstrate that the proposed SP model provides the same optimal configuration but 7 times faster than traditional solutions, and the TCT model is solved at least 4 times faster than classical solutions.
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María, Dolores Palacios. "La Casa de Té como paradigma de la arquitectura en el espacio próximo = The tea house as paradigm of architecture in the nearby space." rita_ Revista Indexada de Textos Académicos, no. 3 (May 6, 2015): 74–81. https://doi.org/10.24192/2386-7027(2015)(v3)(02).
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La casa de Té es un ejemplo de arquitectura creada para ser percibida por la totalidad de los sentidos. Su ámbito es el espacio próximo, donde la totalidad de las cosas se encuentran al alcance de la mano. Nos habla del hombre y de la naturaleza y de la relación entre ambos. The tea house is an example of architecture created to be perceived by all the senses. Its scope is the next space, where all things are at hand. It speaks of man and nature and the relationship between them.
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Mahmudah, N., WA Pratama, F. Aziz, ZM Ihza, and MA Karim. "Road Traffic Safety Analysis at Unsignalized Intersection of Rural Road in Yogyakarta." Journal of Physics: Conference Series 2989, no. 1 (2025): 012022. https://doi.org/10.1088/1742-6596/2989/1/012022.
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Abstract Based on accident data provided by the National Police of Yogyakarta, the Bantul - Srandakan road segment has been identified as the most accident-prone area in Bantul Regency. Therefore, this study aims to mapping blackspot areas, identifying traffic conflict patterns, and analysing the severity of traffic conflicts employing Traffic Conflict Technique (TCT). The stages of study involved secondary data collection, accident ranking analysis using the Accident Equivalent Number (AEN) method, field surveys to obtain primary data, and TCT analysis to assess potential risks and conflicts at key intersections. The results highlighted that blackspot areas are primarily located along the Bantul – Srandakan road segment, particularly at unsignalized intersections. The traffic conflict analysis revealed a high incidence of serious conflicts, with motorcycles being the most vulnerable road users. The severity of these conflicts is strongly influenced by Time to Collision (TTC), with shorter TTC values driven by higher vehicle speeds, contributing to more dangerous scenarios. It is most probably as the main cause of death occur on the road segment.
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Anis, Maisarah Mohd Asry, Mustafa Farahiyah, Sy Yi Sim, Ishak Maizul, and Ahmad Aznizam. "An investigation of piezoelectric tile with drop test technique for energy harvesting application." International Journal of Power Electronics and Drive Systems 14, no. 3 (2023): 1633~1638. https://doi.org/10.11591/ijpeds.v14.i3.pp1633-1638.
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This paper present test and analyses of piezoelectric transducers tile with drop test technique. This piezoelectric tile was tested together with bending mechanism. The bending mechanism was designed using SolidWork software and manufactured by employing 3D printer technology to conduct the evaluation. The piezoelectric transducers connected in a parallel configuration and inserted in piezoelectric tile together with bending mechanism. The drop test employed to test this piezoelectric tile with various loads and speeds. This test conducted based on free fall concept. A wooden box used as a guide to drop an object onto the piezoelectric tile. The various weight load released at a fixed height with different speeds. The output power generated based on the weight and speed of the object were recorded with average force applied on piezoelectric transducer. The highest output power generated was 634.54 µW when 6 kg load released at 2 drop/s with 1.89 N average force applied on each piezoelectric transducer. The lowest output power generated was 6.28 µW when 1 kg load released at 0.5 drop/s with 0.22 N average force applied. The results showed good output power of the piezoelectric transducer was generated for energy harvesting application.
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Okuno, Yukiko. "The role of agency in language socialization." Journal of Second Language Studies 6, no. 2 (2023): 266–89. http://dx.doi.org/10.1075/jsls.22016.oku.
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Abstract Drawing on longitudinal data from the perspective of Complex Dynamic Systems Theory, I portray how L2 language socialization is promoted by an L2 user’s agency borne out of his Ideal L2 self. This paper first showcases a decade-long longitudinal OPI (Oral Proficiency Interview) data set elicited from an L2 Japanese user who speaks Korean as his L1, focusing on the process of affective adverb acquisition observed through transformations in his speech style. Then, employing the Trajectory Equifinality Approach (TEA), I examine holistically how changes in the use of affective adverbs reflects the L2 user’s language socialization by visualizing his language environment and language awareness chronically, including his own reflections through retrospective interviews.