Influence of nominal distortion of Beidou-3 B1C signal on ranging performance by Xue WANG, Yao GUO, Yongnan RAO, Xiaochun LU, Li KANG

“…The B1C signal is selected as a civil navigation signal for the BDS-3 system,which adopts a complex constant envelope modulation in the B1 frequency band.Therefore,it is easy to generate nominal distortion during signal generation.Such nominal distortion of each satellite produces inconsistent ranging deviation and directly degrades the system positioning performance.A complete ranging deviation estimation method was proposed for B1C signals in this paper.Firstly,the S-Curve Bias (SCB) was used to quantitatively analyze the B1C signal ranging deviation,and the standard correlation curve estimation method was proposed to realize the accurate estimation of the code phase deviation at the peak of the correlation curve.Secondly,a algorithm was designed to solve the problem of QMBOC signal mislocking at the platform during receiver tracking.Finally,the actual ranging bias and nature ranging bias of each satellite of Beidou-3 under different correlation intervals and front-end bandwidth of the user receiver were analyzed based on the satellite downlink signals collected from the 40-meter high-gain antenna at the National Time Service Center,and the recommended user receiver parameter range was given.The strategy proposed in this paper can be extended to other MBOC signal ranging error estimation,and the test results can be thought of as a reference to the development of BeiDou-3 receiver.…”
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Influence of nominal distortion of Beidou-3 B1C signal on ranging performance by Xue WANG, Yao GUO, Yongnan RAO, Xiaochun LU, Li KANG

“…The B1C signal is selected as a civil navigation signal for the BDS-3 system,which adopts a complex constant envelope modulation in the B1 frequency band.Therefore,it is easy to generate nominal distortion during signal generation.Such nominal distortion of each satellite produces inconsistent ranging deviation and directly degrades the system positioning performance.A complete ranging deviation estimation method was proposed for B1C signals in this paper.Firstly,the S-Curve Bias (SCB) was used to quantitatively analyze the B1C signal ranging deviation,and the standard correlation curve estimation method was proposed to realize the accurate estimation of the code phase deviation at the peak of the correlation curve.Secondly,a algorithm was designed to solve the problem of QMBOC signal mislocking at the platform during receiver tracking.Finally,the actual ranging bias and nature ranging bias of each satellite of Beidou-3 under different correlation intervals and front-end bandwidth of the user receiver were analyzed based on the satellite downlink signals collected from the 40-meter high-gain antenna at the National Time Service Center,and the recommended user receiver parameter range was given.The strategy proposed in this paper can be extended to other MBOC signal ranging error estimation,and the test results can be thought of as a reference to the development of BeiDou-3 receiver.…”
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Common neural recruitment across diverse sustained attention tasks. by Jessica A Grahn, Tom Manly

“…It is often used, however, in reference to a putatively unitary capacity to remain engaged in tasks that are lengthy, dull, repetitive and/or characterised by long intervals between relevant events. …”
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Temporal and Spatial Variation of Soil Salinity Variations in a 24-year Period in Abadan District Using Satellite Images by Mehdi Mumipour

“…For this purpose, Landsat images with a 24 –year interval were used in conjunction with field data. …”
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Urodynamics tests for the diagnosis and management of male bladder outlet obstruction: long-term follow-up of the UPSTREAM non-inferiority RCT by Madeleine Clout, Amanda L Lewis, Madeleine Cochrane, Grace J Young, Paul Abrams, Peter S Blair, Christopher Chapple, Gordon T Taylor, Sian Noble, Tom Steuart-Feilding, Jodi Taylor, J Athene Lane, Marcus J Drake

“…Over the 5-year time horizon, incremental mean costs were slightly higher (£176.63, 95% confidence interval −£464.06 to £817.32) in the intervention group and incremental mean QALYs were slightly lower (−0.039, 95% confidence interval −0.152 to 0.073) in the intervention group. …”
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Urodynamics tests for the diagnosis and management of male bladder outlet obstruction: long-term follow-up of the UPSTREAM non-inferiority RCT by Madeleine Clout, Amanda L Lewis, Madeleine Cochrane, Grace J Young, Paul Abrams, Peter S Blair, Christopher Chapple, Gordon T Taylor, Sian Noble, Tom Steuart-Feilding, Jodi Taylor, J Athene Lane, Marcus J Drake

“…Over the 5-year time horizon, incremental mean costs were slightly higher (£176.63, 95% confidence interval −£464.06 to £817.32) in the intervention group and incremental mean QALYs were slightly lower (−0.039, 95% confidence interval −0.152 to 0.073) in the intervention group. …”
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Regional features of thunderstorm activity (on the example of the territory of the Kabardino-Balkarian Republic) by A. Kh. Adzhiev, A. A. Cherkesov, Z. M. Kerefova

“…Thunderstorm activity refers to one of the regional climatic characteristics of a limited area. …”
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Multi-cancer early detection tests for general population screening: a systematic literature review by Ros Wade, Sarah Nevitt, Yiwen Liu, Melissa Harden, Claire Khouja, Gary Raine, Rachel Churchill, Sofia Dias

“…Overall test sensitivity and specificity reported below [95% confidence interval (CI) shown in brackets] are not directly comparable across different MCED tests, owing to differences in the number of cancer types each test can detect: Galleri (three studies) Sensitivity: 20.8% (14.0% to 29.2%) to 66.3% (61.2% to 71.1%) Specificity: 98.4% (98.1% to 98.8%) to 99.5% (99.0% to 99.8%) CancerSEEK (two studies) Sensitivity: 27.1% (18.5% to 37.1%) to 62.3% (59.3% to 65.3%) Specificity: 98.9% (98.7% to 99.1%) to 99.1% (98.5% to 99.8%) SPOT-MAS (two studies) Sensitivity: 72.4% (66.3% to 78.0%) to 100% (54.1% to 100%) Specificity: 97.0% (95.1% to 98.4%) to 99.9% (99.6% to 100%) Trucheck (one study) Sensitivity: 90.0% (55.5% to 99.7%) Specificity: 96.4% (95.9% to 96.8%) CDA (one study) Sensitivity: 40.0% (12.2% to 73.8%) Specificity: 97.6% (96.8% to 98.2%) AminoIndex Cancer Screenings for individual cancers separately; sensitivity ranged from 16.7% (3.0% to 56.4%) for ovary/uterus cancer to 51.7% (34.4% to 68.6%) for gastric cancer. …”
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Multi-Wavelength Narrow-Spacing Laser Frequency Stabilization Technology Based on Fabry-Perot Etalon by Ju Wang, Ye Gao, Jinlong Yu, Hao Luo, Xuemin Su, Shiyu Zhang, Ruize Zhang, Chuang Ma

“…The FPE, characterized by multiple transmission peaks at minimal frequency intervals, provides stable frequency references for different lasers, thereby enhancing the system’s flexibility and adaptability. …”
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Comparison of artificial intelligence approaches for estimating wind energy production: A real-world case study by Mohamed Bousla, Mohamed Belfkir, Ali Haddi, Youness El Mourabit, Badre Bossoufi

“…The analysis utilizes temporal data obtained at 10-minute intervals over a span of two years from a wind farm located in Morocco. …”
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Use, Effectiveness, and Safety of Inhaler Devices for LABA/LAMA Fixed-Dose Combinations in Patients with COPD by Sara Lopes, Maria Lucia Marino, Filomena Fortinguerra, Nera Agabiti, Valeria Belleudi, Francesco Trotta

“…To date, no studies have directly compared the effectiveness and safety of different LABA/LAMA devices. …”
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Outpatient referrers as a pathway to care for a new family-centered health intervention in psychiatric clinics and how to reach them: evaluation of an implementation strategy by Philip Martin Kaczmarek, Carolin Laser, Silke Wiegand-Grefe, Silke Pawils

“…It is also recommended that individual clinics address their catchment area more intensively and directly.…”
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Identification of <i>Indica–Japonica</i> Attributes and Analysis of Heterosis Using InDel Markers by Lingling Huang, Jing Ye, Rongrong Zhai, Mingming Wu, Faming Yu, Xiaoming Zhang, Guofu Zhu, Jinling Han, Shenghai Ye

“…With the development and improvement of <i>indica–japonica</i> hybrid rice breeding technologies, it has become possible to directly utilize the heterosis between <i>indica</i> and <i>japonica</i> subspecies to cultivate high-yielding rice varieties. …”
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OCT-based quantitative predictors of coronary dissection during rotational atherectomy in severe calcified lesions by Yu-he Zhou, Hong-li Zhang, Yang Yang, Mei-qin Wang, Jun Pan, Tian Xu, Pei-na Meng, Fei Ye, Yan-qing Wang

“…According to the receiver operating characteristic (ROC) analysis, the distance from the center of OCT catheter to the media at the bias direction (Dcmb) (area under the curve (AUC): 1.000, p &lt; 0.001, 95% confidence intervals (CI): 0.999–1.000) and the touch angle (AUC: 0.988, p &lt; 0.001, 95%CI: 0.968 to 1.000) were strongly correlated with ROTA-related coronary dissection, with the corresponding cutoff values of 0.720 mm and 98.2° respectively.ConclusionDcmb and touch angle detected by OCT are two valuable and convenient independent predictors of ROTA-related coronary intimal dissections caused by guidewire bias.…”
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Integrated transportation system planning with gravitational search algorithm approach based on fuzzy mutant controller by Alireza Hosseinzadeh Kashani, Seyed Ahmad Shayannia, Mohammad Mehdi Movahedi, Soheila Sardar

“…Obviously, this force changes the speed of objects and pulls them towards larger objects, which in nature can be referred to the relationship between the earth, the moon, terrestrial objects and other celestial bodies. …”
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Reporting of Adverse Events in Published and Unpublished Studies of Health Care Interventions: A Systematic Review. by Su Golder, Yoon K Loke, Kath Wright, Gill Norman

“…Inclusion of unpublished data increased the precision of the pooled estimates (narrower 95% confidence intervals) in 15 of the 20 pooled analyses, but did not markedly change the direction or statistical significance of the risk in most cases. …”
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The efficacy and safety of indobufen in patients with ischemic cardiovascular or cerebrovascular diseases: systematic review and meta-analysis by Xiaolu Luo, Chenglu Lai, Tielong Chen

“…The results are intended to provide a reference for the clinical application of indobufen and suggest directions for further large-scale, multi-center, prospective studies.MethodsThis review follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. …”
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DIDACTIC POTENTIAL OF MOBILE APPLICATIONS FOR LEARNING ENGLISH AS A FOREIGN LANGUAGE by Blynova Neliia, Kyrylova Oksana, Dolzhenko Maryna

“…Based on the concept of interval repetition, the developers include tools in the applications that allow students to memorize the material as easily and naturally as possible. …”
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SOURCES OF QUATERNARY POTASSIC VOLCANIC ROCKS FROM WUDALIANCHI, CHINA: CONTROL BY TRANSTENSION AT THE LITHOSPHERE–ASTHENOSPHERE BOUNDARY LAYER by S. V. Rasskazov, I. S. Chuvashova, Yi-min Sun, Chen Yang, Zhenhua Xie, T. A. Yasnygina, E. V. Saranina, Zhenxing Fang

“…Another scenario yields a direct control of melting in lithospheric sources in an evolving transtensional structure. …”
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Secular variation and excursions of the Earth magnetic field during the Plio-Quaternary: New paleomagnetic data from radiometrically dated lava flows of the Colima volcanic complex... by Rafael García-Ruiz, Avto Goguitchaichvili, Miguel Cervantes-Solano, Abel Cortés-Cortés, Juan Morales-Contreras, Rafael Maciel-Peña, José Rosas-Elguera, José Luis Macías-Vázquez

“…Reliable paleomagnetic directions were obtained from 21 Ar-Ar dated lava flows (205 standard paleomagnetic cores) within the age interval from 372 to 34 kyr. …”
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