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Journal articles on the topic 'VSL method'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Wang, Yizhi, Jianming Hu, Li Li, and Yi Zhang. "Optimal coordination of variable speed limit to eliminate freeway wide moving jams." International Journal of Modern Physics C 25, no. 09 (2014): 1450038. http://dx.doi.org/10.1142/s0129183114500387.

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Variable speed limit (VSL) is well-known for the ability to eliminate freeway wide moving jam (WMJ). Different VSL maneuvers have been proposed and proved to be useful theoretically or empirically. However, the coordination of VSL still needs to be analyzed in order to cater for different traffic conditions encountered on the roadway. In this paper, we execute a study on freeway VSL method based on the three-phase traffic theory and Cellular Automata (CA) based simulations. Results indicate that VSL is a promising method in solving freeway WMJs, but in some cases, it induces new congestions du

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Liou, Je-Liang. "Effect of Income Heterogeneity on Valuation of Mortality Risk in Taiwan: An Application of Unconditional Quantile Regression Method." International Journal of Environmental Research and Public Health 16, no. 9 (2019): 1620. http://dx.doi.org/10.3390/ijerph16091620.

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According to theory and existing empirical results, heterogeneity in personal characteristics, with income variation being one of them, affects the marginal willingness to pay (WTP) for reducing fatal risk. In this study, the effect of income heterogeneity on the value of statistical life (VSL) in Taiwan through unconditional quantile regression analysis using the data collected by the “Manpower Utilization Survey” is investigated. The results of this empirical study show that the hedonic wage function that was constructed using empirical data from Taiwan was in line with the general form of n

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Wang, Xingju, Rongqun Zhang, Yang Gou, Jiayu Liu, Lin Zhao, and Yanting Li. "Variable Speed Limit Control Method of Freeway Mainline in Intelligent Connected Environment." Journal of Advanced Transportation 2021 (July 22, 2021): 1–12. http://dx.doi.org/10.1155/2021/8863487.

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Freeway is an important component of transportation system. Bottleneck areas on freeway reduce driving safety and traffic efficiency. The development of intelligent connected technology provides a new idea for traffic management. In order to alleviate traffic congestion on the freeway bottleneck area, this paper proposes a variable speed limit (VSL) control method in intelligent connected environment. In this paper, the METANET model is improved by combining intelligent connected environment and VSL control theory. The total traffic capacity (TTC), total travel time (TTT), and total speed diff

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Jeon, Soobin, Chongmyung Park, and Dongmahn Seo. "The Multi-Station Based Variable Speed Limit Model for Realization on Urban Highway." Electronics 9, no. 5 (2020): 801. http://dx.doi.org/10.3390/electronics9050801.

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Intelligent transport systems (ITS) are a convergence of information technology and transportation systems as seen in the variable speed limit (VSL) system. Since the VSL system controls the speed limit according to the traffic conditions, it can improve the safety and efficiency of a transport network. Many researchers have studied the real-time VSL (RVSL) algorithm based on real-time traffic information from multiple stations recording traffic data. However, this method can suffer from inaccurate selection of the VSL start station (VSS), incorrect VSL calculations, and is unable to quickly r

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Bie, Yuwei, Mudasser Seraj, Can Zhang, and Tony Z. Qiu. "Improving Traffic State Prediction Model for Variable Speed Limit Control by Introducing Stochastic Supply and Demand." Journal of Advanced Transportation 2018 (August 5, 2018): 1–12. http://dx.doi.org/10.1155/2018/7959815.

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Variable speed limit (VSL) is becoming recognized as an effective way to improve traffic throughput and road safety. In particular, methods based on traffic state prediction exhibit promising potential to prevent future traffic congestion and collisions. However, field observations indicate that the traffic state prediction model results in nonnegligible error that impacts the next step decision making of VSL. Thus, this paper investigates how to eliminate this prediction error within a VSL environment. In this study, the traffic state prediction model is a second-order traffic flow model name

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Jahanbakhshi, Reza, and Cyrus K. Madnia. "Viscous superlayer in a reacting compressible turbulent mixing layer." Journal of Fluid Mechanics 848 (June 13, 2018): 743–55. http://dx.doi.org/10.1017/jfm.2018.402.

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Direct numerical simulations of temporally evolving reacting compressible mixing layers have been performed to study the viscous superlayer (VSL) at the outer edge of the interface layer. Budgets of the transport equation of enstrophy conditioned on the normal distance from the turbulent/non-turbulent interface are used to examine the features of the VSL. A new method is introduced to detect and to quantify the thickness of the VSL in reacting compressible flows. It involves finding the correlation coefficient of the viscous diffusion term with the viscous dissipation term. It is shown that, w

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Yang, Jingwen, and Ping Wang. "State Compensation Model in Adaptive Event-Triggered Predictive Control: A Novel Approach to Mitigating Moving Bottlenecks." Symmetry 17, no. 1 (2025): 129. https://doi.org/10.3390/sym17010129.

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Moving bottlenecks, characterized by their high frequency and unpredictability, pose significant challenges to timely response and management, often resulting in road congestion and increased risk of traffic accidents. To address these issues, this paper proposes an adaptive event-triggered variable speed limit (AET-VSL) method based on a state compensation model, which emphasizes the concept of symmetry in the optimization of multi-segment speed limits. This symmetry approach facilitates a balanced and efficient control strategy that adjusts speed limits in a way that harmonizes traffic flow

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Mekonnen, Anteneh Afework, Abebe Dress Beza, and Tibor Sipos. "Estimating the Value of Statistical Life in a Road Safety Context Based on the Contingent Valuation Method." Journal of Advanced Transportation 2022 (November 23, 2022): 1–15. http://dx.doi.org/10.1155/2022/3047794.

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A cost-benefit analysis in a road safety context fundamentally analyzes the advantage of higher safety or lower risk. It can help determine if increasing spending on road safety programs is cost-effective. This study estimates the value of statistical life (VSL)—the amount of money that might be justified to save one person’s life. The VSL is calculated using the willingness to pay (WTP) data obtained through a contingent valuation survey. Three discrete choice models are developed: log-logistic, log-normal, and Weibull. The log-logistic model outperforms the log-normal and Weibull models, com

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Li, Shubin, and Danni Cao. "Variable speed limit strategies analysis with link transmission model on urban expressway." Modern Physics Letters B 32, no. 06 (2018): 1850077. http://dx.doi.org/10.1142/s021798491850077x.

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The variable speed limit (VSL) is a kind of active traffic management method. Most of the strategies are used in the expressway traffic flow control in order to ensure traffic safety. However, the urban expressway system is the main artery, carrying most traffic pressure. It has similar traffic characteristics with the expressways between cities. In this paper, the improved link transmission model (LTM) combined with VSL strategies is proposed, based on the urban expressway network. The model can simulate the movement of the vehicles and the shock wave, and well balance the relationship betwee

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Li, Shubin, and Danni Cao. "Variable speed limit strategies’ analysis with cell transmission model on freeway." Modern Physics Letters B 31, no. 24 (2017): 1750219. http://dx.doi.org/10.1142/s0217984917502190.

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Mainline freeway traffic flow control is one of the primary methods of traffic management, which can present the best network situation. In this paper, we integrate variable speed limit (VSL) strategy into the cell transmission model (CTM). Then the implementation of the integrated model on freeway traffic network is discussed. A novel optimal model of controlling freeway traffic flow is proposed for minimizing the total travelling time in the network. A solution algorithm is designed by using a simulation method. Considering the main purpose of the speed limit strategy is to control the mains

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Vrbanić, Filip, Martin Gregurić, Mladen Miletić, and Edouard Ivanjko. "Reinforcement Learning-Based Dynamic Zone Positions for Mixed Traffic Flow Variable Speed Limit Control with Congestion Detection." Machines 11, no. 12 (2023): 1058. http://dx.doi.org/10.3390/machines11121058.

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Existing transportation infrastructure and traffic control systems face increasing strain as a result of rising demand, resulting in frequent congestion. Expanding infrastructure is not a feasible solution for enhancing the capacity of the road. Hence, Intelligent Transportation Systems are often employed to enhance the Level of Service (LoS). One such approach is Variable Speed Limit (VSL) control. VSL increases the LoS and safety on motorways by optimizing the speed limit according to the traffic conditions. The proliferation of Connected and Autonomous Vehicles (CAVs) presents fresh prospec

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Vega, J., M. Rodriguez, D. Dipaz-Berrocal, J. Rivas, C. Huayhua, and E. Mellisho. "61 Swim-up and microfluidic techniques improve the kinetic parameters of selected bovine spermatozoa for invitro fertilization: Preliminary results." Reproduction, Fertility and Development 33, no. 2 (2021): 137. http://dx.doi.org/10.1071/rdv33n2ab61.

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For invitro embryo production, spermatozoa with fertilizing capacity must possess optimal kinetic, morphometric, vitality, and DNA integrity characteristics. The objective of this study was to evaluate the effect of 3 sperm selection methods on sperm quality and invitro embryonic development in bovine. Frozen commercial semen (0.5 mL/straws) from one bull with known fertility was thawed at 37°C for 20s and was divided for 3 sperm selection techniques: density gradient, swim-up, and microfluidic sperm sorting. The sperm kinetic parameters (VCL=curvilinear velocity, VSL=straight line velocity, V

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Vega, J., M. Rodriguez, D. Dipaz-Berrocal, J. Rivas, C. Huayhua, and E. Mellisho. "61 Swim-up and microfluidic techniques improve the kinetic parameters of selected bovine spermatozoa for invitro fertilization: Preliminary results." Reproduction, Fertility and Development 33, no. 2 (2021): 137. http://dx.doi.org/10.1071/rdv33n2ab61.

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For invitro embryo production, spermatozoa with fertilizing capacity must possess optimal kinetic, morphometric, vitality, and DNA integrity characteristics. The objective of this study was to evaluate the effect of 3 sperm selection methods on sperm quality and invitro embryonic development in bovine. Frozen commercial semen (0.5 mL/straws) from one bull with known fertility was thawed at 37°C for 20s and was divided for 3 sperm selection techniques: density gradient, swim-up, and microfluidic sperm sorting. The sperm kinetic parameters (VCL=curvilinear velocity, VSL=straight line velocity, V

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Alemdar, H., and MB Tırpan. "A novel approach to sperm selection: Nanoparticle-based purification improves quality of Angora cryopreserved buck’s semen." Journal of the Hellenic Veterinary Medical Society 73, no. 4 (2023): 4881–90. http://dx.doi.org/10.12681/jhvms.28206.

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The Aim: The aim of the study was to investigate the applicability of an up-to-date method, sperm selection with nanoparticles at different temperatures (37ºC, 21ºC, and 4ºC), on Angora buck semen. Material and Methods: Semen samples were collected from 3 Angora bucks with 7 repetitions and each sample was diluted and divided into 4 groups. Nanopurification procedure was applied by using a nanoparticle dose of 10 μg/ml to the three groups at 37ºC, 21ºC, and 4ºC while in the control group samples were cryopreserved without nanopurificiation treatment. Post-thaw motility and morphology parameter

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Nagata, Yasunori, Ryoichi Ishihara, Shingo Maeda, Toshinori Kouchi, and Shinichiro Yanase. "Extension of VSL Method for Electrodynamic Heat Shield Analysis." JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 67, no. 1 (2019): 16–24. http://dx.doi.org/10.2322/jjsass.67.16.

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Doležalová, Martina, Martin Ptáček, Luděk Stádník, and Jaromír Ducháček. "Effect of Different Thawing Methods on Bull’s Semen Characteristics." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 65, no. 3 (2017): 815–22. http://dx.doi.org/10.11118/actaun201765030815.

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The aim of the study was to evaluate the influence of different thawing methods on bull’s semen characteristics. The semen was collected and processed from 8 bulls (Holstein, n = 4; Czech Fleckvieh, n = 4) kept in private Sire insemination Centre. Four different thawing methods were tested: control thawing methods (temperature = 38.5 °C, time = 30 seconds), slow thawing method (temperature = 30 °C, time = 50 seconds), moderate thawing method (temperature = 50 °C, time = 15 seconds), rapid thawing rate (temperature = 70 °C, time = 3 seconds). The percentage rate of total and progressive motile

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Fang, Xuan, Tamás Péter, and Tamás Tettamanti. "Variable Speed Limit Control for the Motorway–Urban Merging Bottlenecks Using Multi-Agent Reinforcement Learning." Sustainability 15, no. 14 (2023): 11464. http://dx.doi.org/10.3390/su151411464.

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Traffic congestion is a typical phenomenon when motorways meet urban road networks. At this special location, the weaving area is a recurrent traffic bottleneck. Numerous research activities have been conducted to improve traffic efficiency and sustainability at bottleneck areas. Variable speed limit control (VSL) is one of the effective control strategies. The primary objective of this paper is twofold. On the one hand, turbulent traffic flow is to be smoothed on the special weaving area of motorways and urban roads using VSL control. On the other hand, another control method is provided to t

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Li, Jia, Wenxiang Xu, and Xiaohua Zhao. "Technology acceptance comparison between on-road dynamic message sign and on-board human machine interface for connected vehicle-based variable speed limit in fog area." Journal of Intelligent and Connected Vehicles 2, no. 2 (2019): 33–40. http://dx.doi.org/10.1108/jicv-12-2018-0016.

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Purpose Connected vehicle-based variable speed limit (CV-VSL) systems in fog area use multi-source detection data to indicate drivers to make uniform change in speed when low visibility conditions suddenly occur. The purpose of the speed limit is to make the driver's driving behavior more consistent, so as to improve traffic safety and relieve traffic congestion. The on-road dynamic message sign (DMS) and on-board human–machine interface (HMI) are two types of warning technologies for CV-VSL systems. This study aims to analyze drivers’ acceptance of the two types of warning technologies in fog

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Li, Shubin, Tao Wang, Hualing Ren, et al. "Variable Speed Limit Strategies Based on the Macro Hierarchical Control Traffic Flow Model." Journal of Advanced Transportation 2021 (June 24, 2021): 1–10. http://dx.doi.org/10.1155/2021/9910097.

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The superior traffic control system can promote the efficiency of mainstream expressway. As the effective method to smooth traffic system, the variable speed limits (VSL) strategies are discussed in an expressway traffic network. The dynamic OD estimation model is used to produce the real traffic information, which is loaded to the traffic network. Then, the prediction information of traffic variables and the VSL strategy are introduced to macro hierarchical control traffic flow model. A solution algorithm is further developed to find the optimal parameters of VSL by minimizing the total trave

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Alfares, Hesham K., and Salih O. Duffuaa. "Simulation-Based Evaluation of Criteria Rank-Weighting Methods in Multi-Criteria Decision-Making." International Journal of Information Technology & Decision Making 15, no. 01 (2016): 43–61. http://dx.doi.org/10.1142/s0219622015500315.

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This paper presents a simulation study to assess the performance of the five known methods for converting ranks of several criteria into weights in multi-criteria decision-making. The five methods assessed for converting criteria ranks into weights are: rank- sum (RS) weights, rank reciprocal (RR) weights, rank order centroid (ROC) weights, geometric weights (GW), and variable-slope linear (VSL) weights. The methods are compared in terms of weight estimation accuracy considering different numbers of criteria and decision makers’ (MS) preference structures. Alternative preference structures are

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Dua, Anahita, Sachin Desai, Gilbert R. Upchurch, and Sapan S. Desai. "Renal artery stenting may not be appropriate for patients with atherosclerotic renal artery stenosis." Vascular 24, no. 1 (2015): 9–18. http://dx.doi.org/10.1177/1708538115584507.

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Introduction This study compared aortorenal bypass to renal artery stenting to determine the most efficacious and financially sound method for treating patients with atherosclerotic renal artery stenosis (RAS). Methods A decision analysis using direct and indirect costs, and value of statistical life (VSL) was completed. Direct costs were obtained using the Nationwide Inpatient Sample (NIS), indirect costs from the National Institute of Diabetes and Digestive and Kidney Diseases, and VSL from the Department of Transportation. A variance-based sensitivity analysis was completed to assess the ac

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Pudjisuryadi, Pamuda, Andre Halim, Alexander Keith Kandiawan, and Benjamin Lumantarna. "Improving Seismic Performance of Structure with Semi-rigid floor using VSL-Gensui Damper." Civil Engineering Dimension 22, no. 2 (2020): 75–81. http://dx.doi.org/10.9744/ced.22.2.74-80.

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Deficient structures can be strengthened using various methods, and installing damper devices is one of such methods. In this study, effectiveness of Vorspann System Losinger (VSL) Gensui Damper to improve structural performance of deficient building with semi-rigid floors is investigated. The considered building is subjected to spectrum consistent ground accelerations generated from El Centro 18 May 1940 earthquake N-S and E-W components in accordance to Indonesian Seismic Code (SNI 1726:2012) for Mataram City. Modified Simplified Sequential Search Algorithm (MSSSA) and Optimum Damper Allocat

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Yue, Weiqi, Hang Yang, Yibing Wang, Yusheng Zhou, Guiyun Liu, and Pengjun Zheng. "A Novel Max-Pressure-Driven Integrated Ramp Metering and Variable Speed Limit Control for Port Motorways." Sustainability 17, no. 12 (2025): 5592. https://doi.org/10.3390/su17125592.

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In recent years, congestion on port motorways has become increasingly frequent, significantly constraining transportation efficiency and contributing to higher pollution emissions. This paper proposes a novel max-pressure-driven integrated control (IFC-MP) for port motorways, inspired by the max pressure (MP) concept, which continuously adjusts the weights of ramp metering (RM) and the variable speed limit (VSL) based on pressure feedback from the on-ramp and upstream, assigning greater control weight to the side with higher pressure. A queue management mechanism is incorporated to prevent on-

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Nguyen, Thi Bich Diep, Trung Nghia Phung, and Tat Thang Vu. "A STUDY OF DATA AUGMENTATION AND ACCURACY IMPROVEMENT IN MACHINE TRANSLATION FOR VIETNAMESE SIGN LANGUAGE." Journal of Computer Science and Cybernetics 39, no. 2 (2023): 143–58. http://dx.doi.org/10.15625/1813-9663/18025.

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Sign languages are independent languages of deaf communities. The translation from normal languages (i.e., Vietnamese Language - VL) as long as other sign languages to Vietnamese sign language (VSL) is a meaningful task that breaks down communication barriers and improves the quality of life for the deaf community. In this paper, we experimented with and proposed several methods for building and improving models for the VL to VSL translation task. We presented a data augmentation method to improve the performance of our neural machine translation models. Using an initial dataset of 10k bilingu

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Schlander, Michael, Diego Hernandez, Oliver Schwarz, and Ramon Schaefer. "PP74 Are Commonly Used Cost-Effectiveness Thresholds Too Low? Empirical Evidence From Economic Studies On The Value Of Life." International Journal of Technology Assessment in Health Care 40, S1 (2024): S85. https://doi.org/10.1017/s0266462324002435.

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IntroductionIn health technology assessment (HTA), “value for money” is frequently conceptualized as incremental cost-effectiveness (CE), with effectiveness measured as (quality-adjusted) life years gained (LYG). Commonly used CE thresholds have been subject to controversial debate. We reviewed and analyzed the worldwide economic literature on the value of a statistical life (VSL), which reported empirical estimates during the last 25 years.MethodsWe conducted an extended systematic literature search in the EconBiz and EconLit databases, spanning the period from January 1995 to December 2020.

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DAVIS, RUSSELL O., and DAVID F. KATZ. "Standardization and Comparability of CASA Instruments." Journal of Andrology 13, no. 1 (1992): 81–86. http://dx.doi.org/10.1002/j.1939-4640.1992.tb01632.x.

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ABSTRACT: Thirty human semen specimens were analyzed using a standard manual method, then videotaped and reanalyzed using two different computer‐aided sperm analysis (CASA) instruments (the HTM system, Hamilton‐Thorn Research, Danvers, MA, and the CTS system, Motion Analysis Corp., Santa Rosa, CA). Videotaped specimens were analyzed by CASA for 5 frames for sperm concentration (CON) and percent motility (MOT), and for 15 frames for kinematic variables (straight‐line velocity, VSL; curvilinear velocity, VCL; linearity, LIN; and amplitude of lateral head displacement, ALH). Machine parameter set

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Marini, Massimiliano, Daniele Ravanelli, Marta Martin, et al. "An Economic Analysis of the Systematic Use of Mapping Systems during Catheter Ablation Procedures: Single Center Experience." BioMed Research International 2019 (August 20, 2019): 1–10. http://dx.doi.org/10.1155/2019/2427015.

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Introduction. In this study we estimated the cost-effectiveness of adopting 3D Nonfluoroscopic Mapping Systems (NMSs) for catheter ablation (CA). Methods. This study includes patients who underwent supraventricular tachycardia (SVT) CA and atrial fibrillation (AF) CA from 2007 to 2016. A comparison was conducted between a reference year (2007) and the respective years for the two types of procedure in which the maximum optimization of patients’ exposure using NMSs was obtained. We compared the data of all SVT CA performed solely using fluoroscopy in 2007 (Group I) and all SVT CA procedures per

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Schlander, Michael, Oliver Schwarz, and Ramon Schaefer. "VP95 The Monetary Value Of A Statistical Life Year: A Systematic Review." International Journal of Technology Assessment in Health Care 33, S1 (2017): 192–93. http://dx.doi.org/10.1017/s0266462317003592.

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INTRODUCTION:Among economists, there is widespread agreement that the monetary valuation of health gains should reflect the preferences of those who will be affected by resource allocation decisions. In the context of Health Technology Assessments (HTAs), this view implies a need for reliable empirical estimates of the value of statistical life year (VSLY), which should provide a useful point of reference for cost benefit analyses.METHODS:We conducted a systematic review of the literature on the economic value of a statistical life (VSL). We searched in the EconBiz and EconLit databases for st

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Ramsauer, Sebastian, Jorge Leandro, and Qing Lin. "Inclusion of Narrow Flow Paths between Buildings in Coarser Grids for Urban Flood Modeling: Virtual Surface Links." Water 13, no. 19 (2021): 2629. http://dx.doi.org/10.3390/w13192629.

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Urban flood modeling benefits from new remote sensing technologies, which provide high-resolution data and allow the consideration of small-scale urban key features. Since high-resolution data often result in large simulation runtimes, coarsening of the 2D grid via resampling techniques can be used to achieve a good balance between accuracy and computation time. However, the representation of urban features and topographical properties degrades, since small-scale features are blurred. Therefore, narrow flow paths between buildings are often not considered, building’s sizes are overestimated, a

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Dohnalová, K., K. Luterová, J. Valenta, et al. "Grains of Porous Silicon Embedded in SiO₂:Studies of Optical Gain and Electroluminescence." Solid State Phenomena 99-100 (July 2004): 31–36. http://dx.doi.org/10.4028/www.scientific.net/ssp.99-100.31.

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Recent reports on experimental observation of optical gain in silicon nanostructures in the visible region, performed at several laboratories all over the world, have triggered an extraordinary surge of interest in silicon lasing. However, attempts aimed at reproducing the red stimulated emission from „standard“silicon nanocrystals (sized 3-5 nm) at some other laboratories either failed, or. did not come to definite conclusions. Therefore, more detailed measurements of optical gain in a wider variety of samples containing Si nanocrystals are required in order to unravel whether or not the obse

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Guterres, Joao Antonio, Andyka Kusuma, and Martha Leni Siregar. "Analysis of the Costs of Traffic Accidents in the City of Dili, Timor-Leste." INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY ENGINEERING AND INFORMATION SYSTEM (IJATEIS) 4, no. 2 (2025): 358–72. https://doi.org/10.55047/ijateis.v4i2.1837.

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The Value of Statistical Life (VSL) of residents in Dili City, Timor-Leste is examined in this research using the Willingness to Pay (WTP) method to determine how the public values reducing the risk of fatal traffic accidents. Data collection involved conducting structured face-to-face interviews in various offices and schools. Each respondent was presented with three hypothetical traffic safety programs offering risk reductions of 20%, 50%, and 65%. The associated WTP amounts were USD 12, USD 15, and USD 20, respectively. VSL was computed by dividing WTP by the corresponding percentage of ris

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Hering, D., M. Lecewicz, W. Kordan, and S. Kaminski. "Single nucleotide polymorphism within arylsulfatase D gene (ARSD) is associated with selected kinematic parameters of sperm motility in Holstein-Friesian bulls." Polish Journal of Veterinary Sciences 17, no. 3 (2014): 539–41. http://dx.doi.org/10.2478/pjvs-2014-0081.

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Abstract The aim of the study was to find out whether the single nucleotide polymorphism (SNP) within arylsulfatase D (ARSD) gene is associated with kinematic parameters of sperm motility in Holstein- Friesian bulls. 367 Holstein-Friesian bulls kept in one AI center were included in the study. Point mutation C/T at position 139037255 on chromosome X (rs42207167) was identified by PCR-RFLP method (Pflm I). Significant associations were found between ARSD genotypes and CASA-derived sperm motility parameters: average TM (Total Motility), average VSL (Straight Velocity), average VCL (Curvilinear V

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Atkins Whitmer, Dayna, and David Lauren Woods. "Analysis of the Cost Effectiveness of a Suicide Barrier on the Golden Gate Bridge." Crisis 34, no. 2 (2013): 98–106. http://dx.doi.org/10.1027/0227-5910/a000179.

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Background: The Golden Gate Bridge (GGB) is a well-known “suicide magnet” and the site of approximately 30 suicides per year. Recently, a suicide barrier was approved to prevent further suicides. Aims: To estimate the cost-effectiveness of the proposed suicide barrier, we compared the proposed costs of the barrier over a 20-year period ($51.6 million) to estimated reductions in mortality. Method: We reviewed San Francisco and Golden Gate Bridge suicides over a 70-year period (1936–2006). We assumed that all suicides prevented by the barrier would attempt suicide with alternative methods and es

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Zhang, Liuming, Xuyang Wang, Caiyu Jiang, et al. "Effects of Different Diluents and Freezing Methods on Cryopreservation of Hu Ram Semen." Veterinary Sciences 11, no. 6 (2024): 251. http://dx.doi.org/10.3390/vetsci11060251.

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The purpose of this study was to investigate the effects of different diluents and freezing methods on the quality of thawed sperm after cryopreservation and find an inexpensive and practical method for freezing Hu ram semen for use in inseminations under farm conditions. Ejaculates were collected from five Hu rams. In experiment I, ejaculates were diluted with eight different freezing diluents (basic diluents A, B, C, D, E, F, G, and H). After dilution and cooling, the samples were loaded into 0.25 mL straws and frozen using the liquid nitrogen fumigation method. In experiment II, diluent C w

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Putranti, Oktora Dwi, Lovita Adriani, S. Soeparna, and Tita Damayanti Lestari. "Effect of Caffeine on Motility of Epididymis Spermatozoa of Bali Bull in Slaughterhouse Cibinong." Chalaza Journal of Animal Husbandry 4, no. 2 (2020): 44–47. http://dx.doi.org/10.31327/chalaza.v4i2.1133.

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Abattoir is the place to get meat but also a source of potential genetic sperm. Sperm from a slaughterhouse has low motility. Sperm motility can be improved by adding caffeine to the thinner before being used for fertilization. Caffeine is an alkaloid compound that can increase energy through a cAMP cycle. The method used is the testis of 12 cows Bali taken from a slaughterhouse Cibinong and do frozen sperm. Frozen sperm is analyzed using a computer-assisted sperm Analyzed (CASA) who had been treated caffeine 0, 2, 4, and 6 mg/ml. Fertility frozen epididymis sperm was tested using in vitro fer

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Shui, Yishui, Fang Li, Yichen Chen, and Wei Chen. "An Improved Method of Genetic Algorithm to Solve the Variable Speed Limit Problem with Constraint Conditions." International Journal of Online Engineering (iJOE) 12, no. 12 (2016): 16. http://dx.doi.org/10.3991/ijoe.v12i12.6448.

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This paper analyses the genetic algorithm which is used to solve the problem of the variable speed limit （VSL). In order to ensure the safety of driving, the speed limit in the chromosome must meet the constraints in time and space. The past practice is to add a penalty function in the object function, but with the increase of the number of solutions in the chromosomes, the weight of the penalty function is difficult to determine, often leads to the bad results. In this paper, we design a method to generate the chromosomes which meet the constraints, and the chromosomes in crossover and mutati

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Upadysheva, G. Yu, S. M. Motyleva, T. A. Tumaeva, M. E. Mertvischeva, and M. T. Upadyshev. "Study of frost resistance of generative buds of scion/ rootstock combinations of sweet cherry by freezing in controlled conditions." E3S Web of Conferences 254 (2021): 02012. http://dx.doi.org/10.1051/e3sconf/202125402012.

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The paper presents the results of two-year research on frost resistance study in 18 scion/rootstock combinations of sweet cherry: Fatezh and Chermashnaya varieties grafted on 9 rootstocks (Izmailovsky, AVCH-2, V-5-88, VC-13, Moskoviya, VSL-2, Stepnoy Rodnik, Colt and seedling rootstock Prunus magaleb L.). The research was carried out in 2019-2020 in the laboratory of physiology and biochemistry of FSBSI «Federal Horticultural Research Center for Breeding, Agrotechnology and Nursery» by artificial freezing method in the climate chamber TH-6 JEIO TECH -1000. It was established that after freezin

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Dewanto, Alfalast Susetyo, and Alin Halimatussadiah. "Economic Valuation of Health Impact of Tightening and Easing PSBB Policies in DKI Jakarta." Jurnal Ekonomi Indonesia 11, no. 3 (2023): 281–300. http://dx.doi.org/10.52813/jei.v11i3.156.

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Coronavirus Disease 2019 or COVID-19 is a pandemic that has affected more than 200 countries around the world. This study aims to see the benefits of differences in the policy of easing the lockdown or PSBB (Pembatasan Sosial Berskala Besar), and in the progressive tightening of PSBB execution that had taken place from early March until 31 August 2020. The health impact benefits are calculated using the morbidity which includes Medical Costs and Temporary Productivity Loss (TPL), and the mortality which includes the Value of Statistical Life (VSL). ARIMA model is used for prediction simulation

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Agustinus, Agustinus, and Cennikon Pakpahan. "Computer Assisted Sperm Analysis: A Review." Indonesian Andrology and Biomedical Journal 1, no. 2 (2020): 60–66. http://dx.doi.org/10.20473/iabj.v1i2.35.

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Background: A semen analysis exam is a routine check that is done to evaluate fertility. The World Health Organization (WHO) recommended a manual method to obtain objective and standardized values. However, sometimes some errors can be found with this method such as motility. Computer-Assisted Sperm Analysis offers a way to reduce inaccuracies that often occur with manual methods. Reviews: CASA systems consist of a microscope which connected into a camera to detect microscopic sperm suspension images and a computer installed with special software to extract desired information and produc

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Qu, Zhiguang, Xiaoying Wang, Fei Li, Yanan Li, Xiyao Chen, and Min Chen. "PM2.5-Related Health Economic Benefits Evaluation Based on Air Improvement Action Plan in Wuhan City, Middle China." International Journal of Environmental Research and Public Health 17, no. 2 (2020): 620. http://dx.doi.org/10.3390/ijerph17020620.

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On the basis of PM2.5 data of the national air quality monitoring sites, local population data, and baseline all-cause mortality rate, PM2.5-related health economic benefits of the Air Improvement Action Plan implemented in Wuhan in 2013–2017 were investigated using health-impact and valuation functions. Annual avoided premature deaths driven by the average concentration of PM2.5 decrease were evaluated, and the economic benefits were computed by using the value of statistical life (VSL) method. Results showed that the number of avoided premature deaths in Wuhan are 21,384 (95% confidence inte

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Ismail, Nur Hilwani, Khairul Osman, Farida Zuraina Mohd Yusof, Syarifah Faezah Syed Mohamad, Farah Hanan Fatihah Jaafar, and Siti Fatimah Ibrahim. "Improvement of Post-Thaw Sperm Kinematics and DNA Integrity of Cross-Bred Bovine Sperm by Incorporating DGC as Selection Method Prior to Cryopreservation." Journal of Agricultural Science 9, no. 13 (2017): 24. http://dx.doi.org/10.5539/jas.v9n13p24.

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The aim of this study was to assess post-thaw sperm quality following initial sperm selection using density gradient centrifugation (DGC) prior to cryopreservation. Ejaculates from four mature Charolais cross Kedah-Kelantan bulls were collected using artificial vagina at IBVK Pahang, Malaysia. The ejaculates were aliquoted into 3 groups: non-cryopreserved group (NC); control group of cryopreserved sperm without DGC (ND) and treatment group of sperm undergoing DGC sperm selection before cryopreservation (CDGC). Prior to analysis, samples from both cryopreserved groups were thawed at 37 °C for 3

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Faershtein, Galina, Naomi Porat, and Ari Matmon. "Extended-range luminescence dating of quartz and alkali feldspar from aeolian sediments in the eastern Mediterranean." Geochronology 2, no. 1 (2020): 101–18. http://dx.doi.org/10.5194/gchron-2-101-2020.

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Abstract. Optically stimulated luminescence (OSL) of quartz is an established technique for dating late Pleistocene to late Holocene sediments. Unfortunately, this method is often limited to up to 100 ka (thousands of years). Recent developments in new extended-range luminescence techniques show great potential for dating older sediments of middle and even early Pleistocene age. These methods include thermally transferred OSL (TT-OSL) and violet stimulated luminescence (VSL) for quartz and post-infrared infrared stimulated luminescence (pIRIR) for feldspar. Here we investigate the luminescence

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Strnad, Irena, and Rok Marsetič. "Differential Evolution Based Numerical Variable Speed Limit Control Method with a Non-Equilibrium Traffic Model." Mathematics 11, no. 2 (2023): 265. http://dx.doi.org/10.3390/math11020265.

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This paper introduces a numerical variable speed limit (VSL) control method on a motorway, modeled by the system of partial differential equations (PDEs) of a non- equilibrium continuum traffic model. The method consists of a macroscopic simulation (i.e., numerical solution of the system of PDEs of the continuum model), introduction of the solution-based cost function and numerical optimization with a differential evolution algorithm (DE). Due to the numerical solution scheme, the method enables application of a wide range of continuum traffic models without prior discretization of PDEs. In th

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Flores, Edgar, Joële Viallon, Faraz Idrees, et al. "Pilot study CCQM-P172 – spectroscopic methods for HNO₃ value assignment." Metrologia 60, no. 1A (2023): 08006. http://dx.doi.org/10.1088/0026-1394/60/1a/08006.

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Main text The CCQM-P172 comparison was designed to evaluate the level of compatibility of laboratories' spectroscopic methods for trace gas quantification using nitric acid (HNO3) as a model system. Because it is present in NO2 gas standards as an impurity, HNO3 was chosen as the analyte for study. As primary reference gas mixtures of HNO3/N2 are (generally) unavailable for calibration, traceability for spectroscopic measurements will rely on the use of referenced molecular parameters (such as tabulated in the HITRAN database, acronym for high-resolution transmission molecular absorption datab

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Vasiuta, S. O., V. G. Eremin, G. V. Eremin, and O. V. Eremina. "Promise stone fruit crops clonal rootstocks bred at the Krymsk Experimental Breeding Station." Horticulture: Interdepartment Subject Scientific Collection, no. 76 (2021): 109–22. http://dx.doi.org/10.35205/0558-1125-2021-76-109-122.

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The authors present data of the studying of promise stone fruit crops clonal rootstocks bread at the Krymsk FBS in the nursery and orchard. Besides, their ability of cuttings rooting, compatibility with perspective stone fruit crops cultivars were researched as well as suitability for growing in different regions of the country. The prospect of applying industrial the intensive technologies of the sweet cherry cultivation in the south of Russia, became possible in the recent years in connection with the creation of new high-quality and productive varieties and inland low-growing clonal rootsto

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Li, Shubin, Tao Wang, Hualing Ren, Baiying Shi, and Xiangke Kong. "Optimization Model and Method of Variable Speed Limit for Urban Expressway." Journal of Advanced Transportation 2021 (May 18, 2021): 1–13. http://dx.doi.org/10.1155/2021/9950417.

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The urban expressway network is the main part of the urban traffic network carrying most of the city’s traffic pressure for its continuity and rapidity, but the control method of the traffic flow was too simple to other control methods in application in addition to the ramp control and the fixed speed control. In this paper, the theory of variable speed limit (VSL) was used to develop an optimal control model based on the improved traffic flow simulation model according to the characteristics of urban expressway traffic flow. The objective of the proposed model is to minimize the delay and max

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Milanese, Stefania, Maria Luisa De Giorgi, and Marco Anni. "Determination of the Best Empiric Method to Quantify the Amplified Spontaneous Emission Threshold in Polymeric Active Waveguides." Molecules 25, no. 13 (2020): 2992. http://dx.doi.org/10.3390/molecules25132992.

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Amplified Spontaneous Emission (ASE) threshold represents a crucial parameter often used to establish if a material is a good candidate for applications to lasers. Even if the ASE properties of conjugated polymers have been widely investigated, the specific literature is characterized by several methods to determine the ASE threshold, making comparison among the obtained values impossible. We quantitatively compare 9 different methods employed in literature to determine the ASE threshold, in order to find out the best candidate to determine the most accurate estimate of it. The experiment has

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Saxton, Anthony T., Manisha Bhattacharya, Dharshan Sivaraj, et al. "Assessing the cost and economic impact of tertiary-level pediatric cancer care in Tanzania." PLOS ONE 17, no. 11 (2022): e0273296. http://dx.doi.org/10.1371/journal.pone.0273296.

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Background Worldwide, an estimated 400,000 children develop cancer each year. The bulk of the mortalities from these cases occur in low-and-middle-income countries (LMICs). In Sub-Saharan Africa, there is a tremendous need to strengthen the capacity of health systems to provide high-quality cancer care for children. However, a lack of data on the economic impact of cancer treatment in low-resource settings hinders its consideration as a healthcare priority. To address this gap, this study models the clinical and financial impact of pediatric cancer care in Tanzania, a lower-middle income count

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Okuyama, Hideo, Satoru Ohno, and Yoshio Sakka. "Preparation and Some Properties of Ni-TiN and Ni-TiC Nanocomposite Particles by DC Arc-Plasma." Key Engineering Materials 336-338 (April 2007): 2082–85. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.2082.

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Composite nanoparticles of Ni-TiC and Ni-TiN were prepared by an active plasma-metal reaction method. The structure and morphology were evaluated by X-ray diffraction and transmission electron microscopy observations. The morphology of the composite particles is dice-like or dumbbell-like, where the outer sides are metallic and the inner part of the rod (or dice)-like structure is TiC or TiN. The formation mechanism of the composite particles is considered by analogy to the VSL mechanism. The thermal stability of the nanocomposite particles is vastly superior to that of the metal particle. The

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Sha, Chao, Qi-Wei Wang, Lu Zhang, and Ru-Chuan Wang. "A High-Efficiency Data Collection Method Based on Maximum Recharging Benefit in Sensor Networks." Sensors 18, no. 9 (2018): 2887. http://dx.doi.org/10.3390/s18092887.

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To reduce time delays during data collection and prolong the network lifetime in Wireless Rechargeable Sensor Networks (WRSNs), a type of high-efficiency data collection method based on Maximum Recharging Benefit (DCMRB) is proposed in this paper. According to the minimum number of the Mobile Data Collectors (MDCs), the network is firstly divided into several regions with the help of the Virtual Scan Line (VSL). Then, the MDCs and the Wireless Charging Vehicles (WCVs) are employed in each region for high efficient data collection and energy replenishment. In order to ensure the integrity of da

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