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Journal articles on the topic 'Link Quality indicator (LQI)'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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1

Ning, Xuan Jie, Hai Zhao, Mao Fan Yang, and Hua Feng Chai. "A Link Evaluation Method Employing Statistical Means of Received Signal Strength Indicator and Link Quality Indicator for Wireless Sensor Networks." Applied Mechanics and Materials 470 (December 2013): 722–28. http://dx.doi.org/10.4028/www.scientific.net/amm.470.722.

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This paper is concerned with a wireless receiving link evaluation method using statistical means of received signal strength indicator (RSSI) and link quality indicator (LQI) based on the IEEE 802.15.4 protocol for wireless sensor networks. Traditional methods using single RSSI and single LQI based on the IEEE 802.11 protocol have the disadvantage of the inaccurate evaluation. In this paper, we carry out a quantitative emulation experiment via computing statistical means of RSSI and LQI based on wireless sensor networks protocol of IEEE 802.15.4. Tested numerical values are analyzed using MATL

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Liu, Wei, Yu Xia, Daqing Zheng, Jian Xie, Rong Luo, and Shunren Hu. "Environmental Impacts on Hardware-Based Link Quality Estimators in Wireless Sensor Networks." Sensors 20, no. 18 (2020): 5327. http://dx.doi.org/10.3390/s20185327.

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Hardware-based link quality estimators (LQEs) in wireless sensor networks generally use physical layer parameters to estimate packet reception ratio, which has advantages of high agility and low overhead. However, many existing studies didn’t consider the impacts of environmental changes on the applicability of these estimators. This paper compares the performance of typical hardware-based LQEs in different environments. Meanwhile, aiming at the problematic Signal-to-Noise Ratio (SNR) calculation used in existing studies, a more reasonable calculation method is proposed. The results show that

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Li, Jie, Yang Pan, Shijian Ni, and Feng Wang. "A Hybrid Reliable Routing Algorithm Based on LQI and PRR in Industrial Wireless Networks." Wireless Communications and Mobile Computing 2021 (September 4, 2021): 1–16. http://dx.doi.org/10.1155/2021/6039900.

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In Industrial Wireless Networks (IWNs), the communication through Machine-to-Machine (M2M) is often affected by the noise in the industrial environment, which leads to the decline of communication reliability. In this paper, we investigate how to improve route stability through M2M in an industrial environment. We first compare different link quality estimations, such as Signal-Noise Ratio (SNR), Received Signal Strength Indicator (RSSI), Link Quality Indicator (LQI), Packet Reception Ratio (PRR), and Expected Transmission Count (ETX). We then propose a link quality estimation combining LQI an

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Zhang, Jie, Wu Jun Yao, and Hai Bin Yang. "An Adaptive Error Control Scheme in Wireless Sensor Networks Based on LQI." Applied Mechanics and Materials 263-266 (December 2012): 915–19. http://dx.doi.org/10.4028/www.scientific.net/amm.263-266.915.

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Aiming at the character of high bit error rate and energy constraints on WSN, this paper proposed an adaptive error control scheme based on link quality indicator(LQI). The PHY specification of IEEE802.15.4 provided accurate measurement of channel quality for WSN, according to the quantitative relationship between LQI and bit error rate, this paper divided the channel quality into eight levels non-uniformly, furthermore, eight different BCH code were chosen correspondingly. The motes choose optimal BCH code as its error correction scheme in real time. Experimental results show the scheme is hi

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Bronk, Krzysztof, Adam Lipka, and Rafał Niski. "Link Quality Assessment Algorithm for Heterogeneous Self-organizing Maritime Communications Network." Journal of Telecommunications and Information Technology 2 (June 29, 2018): 32–40. http://dx.doi.org/10.26636/jtit.2018.121217.

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The article introduces a method of performing a radio link quality assessment based on the Link Quality Indicator (LQI) which will be calculated for every system that is available. The method presented has been developed during the netBaltic project completed in Poland and generally applies to the so-called maritime zone A, i.e. the sea area where ships are still within the range of shore-based radio communication systems, particularly 3G/LTE cellular networks. The algorithm was developed based on the results of measurements obtained during two separate campaigns. That measurement data served

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El Madani, Bouchra, Anne Paule Yao, and Abdelouahid Lyhyaoui. "Combining Kalman Filtering with ZigBee Protocol to Improve Localization in Wireless Sensor Network." ISRN Sensor Networks 2013 (March 21, 2013): 1–7. http://dx.doi.org/10.1155/2013/252056.

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We propose a low-cost and low-power-consumption localization scheme for ZigBee-based wireless sensor networks (WSNs). Our design is based on the link quality indicator (LQI)—a standard feature of the ZigBee protocol—for ranging and the ratiometric vector iteration (RVI)—a light-weight distributed algorithm—modified to work with LQI measurements. To improve performance and quality of this system, we propose three main ideas: a cooperative approach, a coefficient delta () to regulate the speed of convergence of the algorithm, and finally the filtering process with the extended Kalman filter. The

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Joana Halder, Sharly, and Wooju Kim. "A Fusion Approach of RSSI and LQI for Indoor Localization System Using Adaptive Smoothers." Journal of Computer Networks and Communications 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/790374.

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Due to the ease of development and inexpensiveness, indoor localization systems are getting a significant attention but, with recent advancement in context and location aware technologies, the solutions for indoor tracking and localization had become more critical. Ranging methods play a basic role in the localization system, in which received signal strength indicator- (RSSI-) based ranging technique gets the most attraction. To predict the position of an unknown node, RSSI measurement is an easy and reliable method for distance estimation. In indoor environments, the accuracy of the RSSI-bas

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Li, Xiaoyu, Osamu Yoshie, and Daoping Huang. "A passive method for privacy protection in the perceptual layer of IoTs." International Journal of Pervasive Computing and Communications 13, no. 2 (2017): 194–210. http://dx.doi.org/10.1108/ijpcc-03-2017-0025.

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Purpose The purpose of this paper is to detect the existence of unknown wireless devices which could result negative means to the privacy. The perceptual layer of internet of things (IoTs) suffers the most significant privacy disclosing because of limited hardware resources, huge quantity and wide varieties of sensing equipment. Determining whether there are unknown wireless devices in the communicating environment is an effective method to implement the privacy protection for the perceptual layer of IoTs. Design/methodology/approach The authors use horizontal hierarchy slicing (HHS) algorithm

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9

Luo, Jian, Liu Yu, Dafang Zhang, Zhen Xia, and Wei Chen. "A New Link Quality Estimation Mechanism Based on LQI in WSN." Information Technology Journal 12, no. 8 (2013): 1626–31. http://dx.doi.org/10.3923/itj.2013.1626.1631.

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10

Jia, Chenhao, Linlan Liu, Xiaole Gu, and Manlan Liu. "A novel link quality prediction algorithm for wireless sensor networks." Computer Science and Information Systems 14, no. 3 (2017): 719–34. http://dx.doi.org/10.2298/csis161220025j.

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Ahead knowledge of link quality can reduce the energy consumption of wireless sensor networks. In this paper, we propose a cloud reasoning-based link quality prediction algorithm for wireless sensor networks. A large number of link quality samples are collected from different scenarios, and their RSSI, LQI, SNR and PRR parameters are classified by a self-adaptive Gaussian cloud transformation algorithm. Taking the limitation of nodes? resources into consideration, the Apriori algorithm is applied to determine association rules between physical layer and link layer parameters. A cloud reasoning

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Kim, Jin Wook, and Yong Hum You. "A Development of LQI(Living Quality Indicator) System for High-rise Residential Building." Journal of korean society of hazard mitigation 12, no. 1 (2012): 31–37. http://dx.doi.org/10.9798/kosham.2012.12.1.031.

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You, Yong Heum, Jin Wook Kim, and Seung Woo Jung. "A Study on the Weights Development of LQI(Living Quality Indicator) Indicators for High-rise Residential Building." Journal of Korean Society of Hazard Mitigation 12, no. 6 (2012): 107–14. http://dx.doi.org/10.9798/kosham.2012.12.6.107.

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13

Mohamed, Bouyahi, Zrelli Amira, Rezig Houria, and Ezzedine Tahar. "Impact of Energy and Link Quality Indicator with Link Quality Estimators in Wireless Sensor Networks." International Journal on Applications of Graph Theory In wireless Ad Hoc Networks And sensor Networks 6, no. 4 (2014): 23–32. http://dx.doi.org/10.5121/jgraphoc.2014.6403.

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Ręklewski, Marek, and Maciej Ryczkowski. "The Polish Regional Labour Market Welfare Indicator And Its Links To Other Well-being Measures." Comparative Economic Research. Central and Eastern Europe 19, no. 3 (2016): 113–32. http://dx.doi.org/10.1515/cer-2016-0023.

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We propose and construct an indicator of labour market well-being in Poland for the year 2013. The indicator is positively related to the degree of civilizational welfare, social welfare, material welfare and psychological wellbeing in Poland. We conclude that ameliorating the labour market situation improves the quality of the public’s life. The link between our labour market indicator and the total fertility rate turned out to be statistically insignificant.

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Isokawa, Teijiro, Shun Motomura, Junya Ohtsuka, et al. "An Anchor-Free Localization Scheme with Kalman Filtering in ZigBee Sensor Network." ISRN Sensor Networks 2013 (February 28, 2013): 1–11. http://dx.doi.org/10.1155/2013/356231.

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A localization scheme for wireless sensor networks is proposed and its performances are investigated in this paper. The proposed scheme is an anchor-free scheme, in which no geometrical information of sensor nodes is required for their localization. Thus, only local interaction among sensor nodes is used to estimate their locations. This scheme employs the link quality indicator and hop count between sensor nodes for location estimation. A weighted averaging and Kalman filtering schemes are incorporated in order to reduce the effects of the measurement errors in the obtained values of the link

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Kim, Hyojin, Nicolas Surdyk, Ingelise Møller, et al. "Lag Time as an Indicator of the Link between Agricultural Pressure and Drinking Water Quality State." Water 12, no. 9 (2020): 2385. http://dx.doi.org/10.3390/w12092385.

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Diffuse nitrogen (N) pollution from agriculture in groundwater and surface water is a major challenge in terms of meeting drinking water targets in many parts of Europe. A bottom-up approach involving local stakeholders may be more effective than national- or European-level approaches for addressing local drinking water issues. Common understanding of the causal relationship between agricultural pressure and water quality state, e.g., nitrate pollution among the stakeholders, is necessary to define realistic goals of drinking water protection plans and to motivate the stakeholders; however, it

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Kuznetsov, A. P., and H. J. Koriath. "THERMAL STIFFNESS – A KEY ACCURACY INDICATOR OF MACHINE TOOLS." MM Science Journal 2021, no. 3 (2021): 4548–55. http://dx.doi.org/10.17973/mmsj.2021_7_2021058.

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Static and dynamic stiffness [N/m] determine the ability of solids to resist constant and variable loads. Both elastic characteristics of a machine tool effect their quality assessment. Thermal stiffness (comprising heat stiffness and temperature stiffness) [W/µm] is a key accuracy indicator of the machine tool's ability to resist temperature influences. The proposed method creates the thermo-physical structure of a machine tool, based on a set of homogeneous heat-active elements and quasi-thermostable links. Quasi-thermostable links retain constant properties when the thermal state of the hea

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KICHIGIN, Viktor I., та Sergey N. SKOROKHODOV. "APPLICABILITY OF WATER ζ - POTENTIAL AS ITS POLLUTION DENSITY CHARACTERISTICS". Urban construction and architecture 7, № 3 (2017): 28–34. http://dx.doi.org/10.17673/vestnik.2017.03.6.

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The paper discusses advantages and disadvantages of existing methods for determining water quality. It proposes to use electro-kinetic capacity as a key indicator together with cluster analysis of obtained results. It is shown, that according to such indicators as pH, turbidity, alkalinity, general rigidity, content of ion Ca2+, Mg2+, the quality of drinking water in Samara is stable and consistent with existing standards. The research reveals some zeta-potential (ZP) dependence on water pollution density. It was shown that the link between zeta-potential and various kinds of contamination in

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Klaina, Hicham, Ana Vazquez Alejos, Otman Aghzout, and Francisco Falcone. "Narrowband Characterization of Near-Ground Radio Channel for Wireless Sensors Networks at 5G-IoT Bands." Sensors 18, no. 8 (2018): 2428. http://dx.doi.org/10.3390/s18082428.

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In this contribution, a narrowband radio channel model is proposed for rural scenarios in which the radio link operates under near-ground conditions for application in wireless sensor networks dedicated to smart agriculture. The received power attenuation was measured for both transmitter and receiver antennas placed at two different heights above ground: 0.2 and 0.4 m. Three frequency ranges, proposed for future 5G-IoT use case in agriculture, were chosen: 868 MHz, 2.4 GHz and 5.8 GHz. Three ground coverings were tested in a rural scenario: soil, short and tall grass fields. The path loss was

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Danböck and Werner. "Cardiac Vagal Control, Regulatory Processes and Depressive Symptoms: Re-Investigating the Moderating Role of Sleep Quality." International Journal of Environmental Research and Public Health 16, no. 21 (2019): 4067. http://dx.doi.org/10.3390/ijerph16214067.

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Lower cardiac vagal control (CVC), which is often understood as an indicator for impaired regulatory processes, is assumed to predict the development of depressive symptoms. As this link has not been consistently demonstrated, sleep quality has been proposed as a moderating factor. However, previous studies were limited by non-representative samples, cross-sectional data, and focused on CVC as a physiological indicator for impaired regulatory processes, but neglected corresponding subjective measures. Therefore, we investigated whether sleep quality moderates the effects of CVC (quantified by

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21

Khan, Shehnaz, and Carol C. Cheung. "The adaptation of AABACUS for quality improvement in laboratory workflow analysis ('L-AABACUS')." Journal of Clinical Pathology 72, no. 3 (2019): 237–43. http://dx.doi.org/10.1136/jclinpath-2019-205725.

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The ability to effectively monitor key indicators is important for continuous quality improvement in laboratory immunohistochemistry. This article deals specifically with laboratory turnaround time (TAT) as a key delivery indicator and the impact of laboratory workflow on laboratory TATs. While our laboratory has traditionally relied on the manual calculation of slide-TAT (S-TAT) to monitor delivery, we have determined that automated calculation of case-TAT (C-TAT) would be superior as a delivery indicator. AABACUS (Automatable Activity-Based Approach to Complexity Unit Scoring) is an activity

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Wang, Haijing, Fangfang Zhang, and Wenli Zhang. "Human Detection through RSSI Processing with Packet Dropout in Wireless Sensor Network." Journal of Sensors 2020 (September 21, 2020): 1–9. http://dx.doi.org/10.1155/2020/4758103.

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This paper presents a device-free human detection method for using Received Signal Strength Indicator (RSSI) measurement of Wireless Sensor Network (WSN) with packet dropout based on ZigBee. Packet loss is observed to be a familiar phenomenon with transmissions of WSNs. The packet reception rate (PRR) based on a large number of data packets cannot reflect the real-time link quality accurately. So this paper firstly raises a real-time RSSI link quality evaluation method based on the exponential smoothing method. Then, a device-free human detection method is proposed. Compared to conventional so

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Aries, Arslan Kamil, Budi Widyanto, and Sudirman Sudirman. "LITERATUR REVIEW : KUALITAS HIDUP PASIEN LEUKEMIA." Jurnal Ilmu Keperawatan Medikal Bedah 3, no. 2 (2020): 49. http://dx.doi.org/10.32584/jikmb.v3i2.537.

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Leukemia is a malignant disease that attacks the hematopoiesis system, causing uncontrolled blood cell proliferation. Quality of life is one indicator that can be used to see the welfare conditions of patients suffering from chronic diseases such as leukemia. This review literature aims to find out the factors that influence the quality of life of leukemia patients. Literature search through Google Scholar, EBSCO, Springer Link, Elsevier, Sage databases using keywords: factors, quality of life, leukemia. The journals taken have a range from 2018 to 2020, which are then filtered according to th

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Wither, A., M. Rehfisch, and G. Austin. "The impact of bird populations on the microbiological quality of bathing waters." Water Science and Technology 51, no. 3-4 (2005): 199–207. http://dx.doi.org/10.2166/wst.2005.0592.

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To ensure optimum quality at Bathing Waters, the control of diffuse sources of bacterial contamination is receiving increasing attention. As part of an initiative to improve the quality of the EU designated bathing waters on the Fylde Coast (North West England), a project was undertaken to quantify the faecal indicator load from birds and assess the significance on water quality. High bird counts are encountered on the Fylde Coast with gulls, feral pigeons and starlings being prominent. The piers at Blackpool make an attractive roost for starlings with numbers peaking at over 30,000 in late su

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VINCENT, AVIVA, SHELBY MCDONALD, BETHANIE POE, and VICKI DEISNER. "THE LINK BETWEEN INTERPERSONAL VIOLENCE AND ANIMAL ABUSE." Society Register 3, no. 3 (2020): 83–101. http://dx.doi.org/10.14746/sr.2019.3.3.05.

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In 2018, more homes in the US have pets than those that have children. Though pets are regarded as property by US law, a majority of people identify pets as part of the family unit. Animal abuse and cruelty have been identified as a potential indicator and precursor to interpersonal violence (IPV). Moreover, child maltreatment, domestic violence, elder abuse, and animal abuse co-occur in households and communities link together to indicate the nexus of these heinous crimes; these co-occurring forms of violence have been increasingly referred to as The Link, to indicate the linked violence. How

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Prka, Igor, and Branislava Djordjevic. "Testicle size as indicator of fertility in bulls." Veterinarski glasnik 68, no. 5-6 (2014): 311–22. http://dx.doi.org/10.2298/vetgl1406311p.

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Male calves from the high value parents, bull fathers and bull dams, enter the selection for artificial insemination. After laboratory tests, the calves are taken to the center for artificial insemination, and after a stay in quarantine the are moved to a test station. At the age of twelve months they are measured for assessing the value of each calf exterior. One of the measures recorded was the testicle scope. On the basis of testicle size, it is possible to predict sperm production potential. For the determination of testicle size (testicular biometry), tapes or rulers were used. The aim of

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Dagan, Or, Arun Asok, Howard Steele, Miriam Steele, and Kristin Bernard. "Attachment security moderates the link between adverse childhood experiences and cellular aging." Development and Psychopathology 30, no. 4 (2017): 1211–23. http://dx.doi.org/10.1017/s0954579417001705.

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AbstractExposure to childhood adversity has been linked to accelerated telomere shortening, a marker of cellular aging and an indicator of physical health risk. In the current study, we examined whether adult attachment representation moderated the association between childhood adversity and telomere length. Participants included 78 young adults (M age = 20.46, SD = 1.57), who reported on their exposure to adverse childhood experiences (ACE) and were administered the Adult Attachment Interview, which was coded for attachment state of mind. Relative telomere length was assayed from buccal cells

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Daemitabalvandani, Maziyar, Josep Sabater, Jordi Sabater, and Manel López. "Distance Estimation Error from Direct Measurement of the RSSI. The Use of Link Quality Indicator for Obtaining a Global Vision of the Network." Sensor Letters 9, no. 6 (2011): 2197–202. http://dx.doi.org/10.1166/sl.2011.1799.

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Sobhani, Iradj, Amine Ghozelane, Emma Bergsten Bergsten, and Sean Kennedy. "Microbiota as a new indicator of colorectal cancer (CRC) heterogeneity." Journal of Clinical Oncology 35, no. 15_suppl (2017): 3615. http://dx.doi.org/10.1200/jco.2017.35.15_suppl.3615.

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3615 Background: Location and somatic gene signature of CRCs may impact prognosis and therapy response. The aim was to characterize colon Microbiota in CRC patients regarding location, gene markers and outcome. Methods: Patients (N = 173) signed consent for whole metagenome (shot gun sequencing on Illumina HiSeq2500) analysis of stool DNA: 72 CRC (53 sporadic-S, 19 Lynch-L), 87 asymptomatic subjects (normal colonoscopy), 14 first degree healthy relatives from Lynch families. "MOCAT" pipeline was used, library sorted (Phred quality score ¡20 Alientrimmer v0.4.0) after exclusion of < 35 nt, h

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Makosko, A. A., and L. O. Maximenkov. "New prognostic indicator of adverse and dangerous weather phenomena — gradient of the integral helicity of the atmospheric motion velocity field." Issues of Risk Analysis 16, no. 2 (2019): 50–57. http://dx.doi.org/10.32686/1812-5220-2019-16-2-50-57.

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Some new properties of integral helicity are revealed, in particular, the dipole structure of the structure of its field. Taking this circumstance into account, a more informative and illustrative criterion for evaluating integral helicity is a gradient of integral helicity that is promising in analyzing and forecasting adverse and dangerous weather phenomena.Using the example of a convective storm inMoscow05.29.2017. Indicators of predictive quality and clarity, used as diagnostic indicators and dangerous weather phenomena. Considering that such a convective storm is predicted in just a coupl

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Jiang, Hongxu, Kai Yang, Tingshan Liu, and Yongfei Zhang. "Quality Prediction of DWT-Based Compression for Remote Sensing Image Using Multiscale and Multilevel Differences Assessment Metric." Mathematical Problems in Engineering 2014 (2014): 1–15. http://dx.doi.org/10.1155/2014/593213.

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Accurate assessment and prediction of visual quality are of fundamental importance to lossy compression of remote sensing image, since it is not only a basic indicator of coding performance, but also an important guide to optimize the coding procedure. In the paper, a novel quality prediction model based on multiscale and multilevel distortion (MSMLD) assessment metric is preferred for DWT-based coding of remote sensing image. Firstly, we propose an image quality assessment metric named MSMLD, which assesses quality by calculating distortions in three levels and multiscale sampling between ori

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Tyufilin, Denis S., Ivan A. Deev, Olga S. Kobyakova, Ekaterina K. Tagina, and Evgeny S. Kulikov. "A review: quality of life of patients with allergic rhinitis receiving various treatment." Annals of the Russian academy of medical sciences 75, no. 2 (2020): 106–14. http://dx.doi.org/10.15690/vramn1264.

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The high prevalence of allergic rhinitis in a population, the link between this disease and asthma, and a significantly higher economic burden of the disease, causing a negative impact on the patients quality of life, have resulted in increased attention to the problem of allergic rhinitis at the global level. Nowadays optimal allergic rhinitis treatment and management include disease control, consisting of assessing the level of disease control and selecting a treatment scheme based on this assessment. Current studies are focused on the development of questionnaires and testing systems for as

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Sarasin, F. P., F. Bolla, J. M. Gaspoz, F. Borst, and M. P. Kossovsky. "Distinction between Planned and Unplanned Readmissions following Discharge from a Department of Internal Medicine." Methods of Information in Medicine 38, no. 02 (1999): 140–43. http://dx.doi.org/10.1055/s-0038-1634173.

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AbstractReadmission rate is often used as an indicator for the quality of care. However, only unplanned readmissions may have a link with substandard quality of care. We compared two databases of the Geneva University Hospitals to determine which information is needed to distinguish planned from unplanned readmissions. All patients readmitted within 42 days after a first stay in the wards of the Department of Internal Medicine were identified. One of the databases contained encoded information needed to compute DRGs. The other database consisted of full-text discharge reports, addressed to the

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Sarkar, Asok Kumar, and Sujan Singha. "Factors Influencing Health of the Santals: A Study of Selected Villages of Birbhum." International Journal of Community and Social Development 1, no. 1 (2019): 58–74. http://dx.doi.org/10.1177/2516602619826261.

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The study discusses the influence of social, economic and cultural factors on health-seeking behaviours of the Santals living in six villages of Birbhum district in West Bengal, India. By employing both qualitative and quantitative methods, data were collected for the study. The analysis shows the link between educational, social, economic and cultural factors and health-seeking behaviour. Lack of economic freedom was found as the predominant indicator in restricting access to better health-care facilities. Poor occupational standards, low levels of income and less investment in maintaining he

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Hansuebsai, Aran, and Samatcha Nawakitwong. "Printability Analysis of Compostable Films by Flexographic Water Based Ink." Key Engineering Materials 843 (May 2020): 26–32. http://dx.doi.org/10.4028/www.scientific.net/kem.843.26.

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This research analyzed the printability of compostable films commercialized in the Thai market such as PLA/PBAT and PBAT/starch; and to comply with EN 13432 standard by using flexographic water based ink. A narrow web flexographic printing press was set up and opperated. Print quality parameters such as optical density, tone reproduction, print contrast and print uniformity were investigated. Results showed that these compostable films were hydrophobic in nature, in combination with fracture and voids of substrates’ surface. Even the substrates could be printed relatively well but showed poor

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Liu, Jie, Paul M. Schonfeld, Yong Yin, and Qiyuan Peng. "Effects of Link Capacity Reductions on the Reliability of an Urban Rail Transit Network." Journal of Advanced Transportation 2020 (October 29, 2020): 1–15. http://dx.doi.org/10.1155/2020/9020574.

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Link capacity reductions, which occur often, degrade the service quality and performance of urban rail transit (URT) networks. To measure the reliability of a URT network when link capacity reductions occur in a given time period, the passengers’ generalized travel cost (GTC) is computed and passengers are divided into three categories. The GTC considers here the crowding in trains, seat availability, and perceived travel time. Passengers whose relative increase in GTC on a URT is below or above a preset threshold belong to category I or II, respectively, while passengers who cannot travel on

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Shyshatskyi, A., O. Cherniak, A. Lyashenko, et al. "DEVELOPMENT OF THEORETICAL PROVISIONS OF TRANSMISSION OF DISCRETE MESSAGES OF MILITARY RADIOCOMMUNICATION SYSTEMS." Системи управління, навігації та зв’язку. Збірник наукових праць 2, no. 60 (2020): 180–83. http://dx.doi.org/10.26906/sunz.2020.2.180.

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Modern military radio systems operate in the complex conditions of the electronic environment, due to the limited frequency range, the influence of deliberate interference and signal fading. One of the ways to improve the effectiveness of military radio communication systems is to develop indicators (methods, techniques) for evaluating the effectiveness of military radio communication systems. The analysis found that known approaches to evaluating the performance of military radio communications systems are based on the use of bit error probability in a channel, which is a rather rough indicat

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Gherghina, Ștefan Cristian, Liliana Nicoleta Simionescu, and Oana Simona Hudea. "Exploring Foreign Direct Investment–Economic Growth Nexus—Empirical Evidence from Central and Eastern European Countries." Sustainability 11, no. 19 (2019): 5421. http://dx.doi.org/10.3390/su11195421.

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This study aims to examine the link between foreign direct investment (FDI) inflows and economic growth, also considering several institutional quality variables, as well as sustainable development goals (SDGs) set in the 2030 Agenda for Sustainable Development. By estimating panel data regression models for a sample of 11 Central and Eastern European countries, from 2003 to 2016, the empirical outcomes provide support for a non-linear relationship between FDI and gross domestic product per capita. Regarding institutional quality, it is found that control of corruption, government effectivenes

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Ipsen, A. Helene, and Helle Vrønning Dam. "Translation Revision: Correlating Revision Procedure and Error Detection." HERMES - Journal of Language and Communication in Business, no. 55 (August 29, 2016): 143. http://dx.doi.org/10.7146/hjlcb.v0i55.24294.

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This article reports on an empirical study on translation revision. With the aim of investigating the possible link between revision procedure and quality, the research correlates an indicator of quality, error detection, with revision procedure. Error detection and revision procedure were studied drawing on a convergent parallel mixed-methods research design involving three different sources of data. Nine subjects performed a revision task and thus produced text data; their activities on the computer screen were captured and saved as video fi les; and retrospective interviews were conducted w

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Ipsen, A. Helene, and Helle V. Dam. "Translation Revision: Correlating Revision Procedure and Error Detection." HERMES - Journal of Language and Communication in Business, no. 55 (September 26, 2016): 143. http://dx.doi.org/10.7146/hjlcb.v0i55.24612.

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This article reports on an empirical study on translation revision. With the aim of investigating the possible link between revision procedure and quality, the research correlates an indicator of quality, error detection, with revision procedure. Error detection and revision procedure were studied drawing on a convergent parallel mixed-methods research design involving three different sources of data. Nine subjects performed a revision task and thus produced text data; their activities on the computer screen were captured and saved as video fi les; and retrospective interviews were conducted w

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Birkill, Karen. "Deal with heels: a pressure ulcer prevention initiative." British Journal of Community Nursing 25, no. 3 (2020): S6—S10. http://dx.doi.org/10.12968/bjcn.2020.25.sup3.s6.

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Pressure ulcers/injuries are well known for being a common problem in healthcare and are a key indicator of the quality and experience of patient care. This article discusses how one NHS trust reduced the incidence of heel pressure ulcers within adult inpatient settings. In 2016/17, the trust identified 14 avoidable category 3 and above pressure ulcers/injuries in inpatient settings, of which 10 had developed on the heels. Through root cause analysis, the organisation identified themes, which prompted action, and a quality improvement project ‘Deal with heels’ was planned and implemented. Chan

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Polikanova, I. S., and S. V. Leonov. "Psychophysiological and molecular genetic correlates of fatigue." Современная зарубежная психология 5, no. 4 (2016): 24–35. http://dx.doi.org/10.17759/jmfp.2016050403.

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The article is devoted to a theoretical overview in the field of fatigue, and in particular to recent data on psychophysiological and molecular-genetic correlates of fatigue. Nowadays there exist many methods used to assess fatigue and other functional states: subjective, behavioral and physiological methods. Earlier the studies in the area of fatigue were mainly focused on looking for an objective indicator. The current research focuses on an integral approach. Over recent years the significant progress in molecular biology has been achieved, which provided a significant impact on quality and

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Khoo, Yee-Len, and Kathleen Mosier. "Searching for Cues: An Analysis on Factors Effecting the Decision Making Process of Regional Airline Pilots." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 49, no. 3 (2005): 578–81. http://dx.doi.org/10.1177/154193120504900377.

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Research on aviation accidents and incidents has indicated humans are potentially the “weak link” in the chain of accident causation. The problem faced by researchers here is there is often no clear standard of determining what decision is “correct” or “incorrect“. In addition, the loose coupling of an event outcome and the decision process makes it hard researchers to use accident reports as a reliable indicator of the quality of the decision. The goal of this research is to explore cognitive processes of pilots when dealing with the types of decisions required under time pressure and with co

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Lee, Hyunjee, Haseong Kim, and Hosung Park. "Novel Calibration of MIESM and Reduction of CQI Feedback for Improved Fast Link Adaptation." Electronics 8, no. 3 (2019): 278. http://dx.doi.org/10.3390/electronics8030278.

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In mobile communications systems, fast link adaptation (FLA) aims to achieve high system throughput of each user by accurately determining a channel quality indicator (CQI) for feedback, which predicts the next channel based on the current channel state information. In this paper, we propose an improved calibration method of mutual information effective signal-to noise-ratio mapping (MIESM) to determine an accurate CQI feedback value in FLA. Our proposed calibration method derives the optimal calibration factors by considering various channel environments and setting the effective interval of

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Schäufele, Isabel, Daria Pashkova, and Ulrich Hamm. "Which consumers opt for organic wine and why? An analysis of the attitude-behaviour link." British Food Journal 120, no. 8 (2018): 1901–14. http://dx.doi.org/10.1108/bfj-03-2018-0141.

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Purpose The purpose of this paper is to analyse the effect of attitudes and socio-demographics on wine consumers’ real purchase behaviour for organic wine. Design/methodology/approach This study is based on GfK household panel data, a real market data source of high population coverage. A two-part fractional model was applied as two distinct categories of wine buyers were observed. The first part of the two-part fractional model consisted of a standard binary choice model and defined the likelihood of belonging to the group of organic wine buyers. The second part of the model only took organic

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Fikriyah, Siti Hailatul. "PENGARUH LIKUIDITAS, PROFITABILITAS DAN UKURAN PERUSAHAAN TERHADAP PERINGKAT OBLIGASI PADA INDUSTRI PERBANKAN YANG TERDAFTAR DI BURSA EFEK INDONESIA." JURNAL AKUNTANSI BERKELANJUTAN INDONESIA 1, no. 3 (2018): 289. http://dx.doi.org/10.32493/jabi.v1i3.y2018.p289-310.

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Bond rating is one of the most important indicator about a company’s credit quality. The objective of this research is to know how the liquidity, profitability,and size could influence to the bonds rating. This research use listed on Bursa Efek Indonesia. The samples of this research consist of 15 banks are listed in PT Pefindo from 2009-2012. Research method that used is descriptive analysis, with searching data through library, Financial statement from Bursa Efek Indonesia, and ICMD (Indonesian Capital Market Directory). The techniques of the test of the data be processed by using SPSS (Stat

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Li, Xiao Hua, Yu Jie Wang, Ren Long Zhang, Juan Nie, Yang Li, and Quan Yue Yang. "A WSN Clustering Data Acquisition System for Mountainous Orchard Environmental Monitoring." Applied Mechanics and Materials 602-605 (August 2014): 2048–52. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.2048.

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Mountainous environment makes the wireless sensor network (WSN) data collection applications remain a challenging domain, as the detection region may present a three-dimensional structure and the radio propagation characteristics are still looking forward to further research. To better adapt to the ecological data acquisition needs in mountainous orchard, A WSN clustering data acquisition system is designed and implemented. It uses the received signal strength indicator (RSSI) to evaluate radio propagation performance and characterize the communication quality of the link. In the selection of

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Zhu, Quan Zheng, Le Yang, and Wei Li. "Simple and Robust RSSI Estimation Using M-Estimator." Advanced Materials Research 756-759 (September 2013): 3946–51. http://dx.doi.org/10.4028/www.scientific.net/amr.756-759.3946.

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Accurate estimation of the received signal strength indicator (RSSI) from a set of sequentially measured ones is essential for a number of practical applications including link quality evaluation for sensor network routing, indoor wireless localization and more recently, handover in health monitoring systems. This paper develops a simple and robust RSSI estimation algorithm that can effectively mitigate the magnitude variation in the RSSI measurements due to the combined effects of fast fading and non-line-of-sight (NLOS) signal propagation. The new method is based on the robust M-estimator an

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Jwo, Jung-Sing, Ching-Sheng Lin, Cheng-Hsiung Lee, Li Zhang, and Sin-Ming Huang. "Intelligent System for Railway Wheelset Press-Fit Inspection Using Deep Learning." Applied Sciences 11, no. 17 (2021): 8243. http://dx.doi.org/10.3390/app11178243.

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Railway wheelsets are the key to ensuring the safe operation of trains. To achieve zero-defect production, railway equipment manufacturers must strictly control every link in the wheelset production process. The press-fit curve output by the wheelset assembly machine is an essential indicator of the wheelset’s assembly quality. The operators will still need to manually and individually recheck press-fit curves in our practical case. However, there are many uncertainties in the manual inspection. For example, subjective judgment can easily cause inconsistent judgment results between different i

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Najera-Zuloaga, Josu, Dae-Jin Lee, and Inmaculada Arostegui. "Comparison of beta-binomial regression model approaches to analyze health-related quality of life data." Statistical Methods in Medical Research 27, no. 10 (2017): 2989–3009. http://dx.doi.org/10.1177/0962280217690413.

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Health-related quality of life has become an increasingly important indicator of health status in clinical trials and epidemiological research. Moreover, the study of the relationship of health-related quality of life with patients and disease characteristics has become one of the primary aims of many health-related quality of life studies. Health-related quality of life scores are usually assumed to be distributed as binomial random variables and often highly skewed. The use of the beta-binomial distribution in the regression context has been proposed to model such data; however, the beta-bin

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