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Journal articles on the topic 'Average projection'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Zaerko, D. V., and V. A. Lipnitski. "Calculating the average distance between horizontal projection peaks." «System analysis and applied information science», no. 3 (December 12, 2019): 4–8. http://dx.doi.org/10.21122/2309-4923-2019-3-4-8.

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During the analysis and construction of the noise filtering algorithm at the stage of segmentation of character strings, the need to describe a special database or dictionary for storing model and skeletal projections of alphabet characters became clear. However, when formatting entries for alphabetical projection in the dictionary, the following questions arose: how many projection values are needed to describe a single character, and also how this value may change depending on the number of strings analyzed and their characters. The objects of research in the article are the vertical project

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Ali Amroji, Raditya Faradina Pratiwi, and Agnes Adriana. "Perbandingan Rata-Rata Densitas Pada Hasil Foto Thorax Proyeksi Antero Posterior (AP) Supine dan Duduk Tegak." JRI (Jurnal Radiografer Indonesia) 2, no. 1 (2019): 1–8. http://dx.doi.org/10.55451/jri.v2i1.23.

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Background: This research aims for knowing the differences of the average density thorax photo in position AP Supine and AP of Sitting Position. In the AP projections Supine and AP sit upright will get an average density that is not significant and affect the quality of the image to be not optimal. So that further efforts are needed so that the use of the AP projection sits upright to obtain an optimal picture quality such as the use of the AP projections Supine (Firdausy, 2011) Methods: This Scientific research is quantitative with evaluating the average differences on the four points.

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John, N. Igabari. "The Population Question in Nigeria: Models and Reliable Projections." Asian Research Journal of Mathematics 5, no. 3 (2017): 1–10. https://doi.org/10.9734/ARJOM/2017/33989.

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The question of Nigeria’s actual population has remained a very sensitive one within the country because there are very obvious constitutional advantages of large populations conferred on constituent parts of the Nation. This sensitivity has made it increasingly difficult to conduct a credible census exercise, and this means having to depend on projections and estimates. Projections may not take into exact account so many salient social, demographic and environmental factors that could influence or alter the nature of population abundance and structure. Along this line of reasoning, this paper

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SPRIESTERSBACH, K. K. "Determination of a convex body from the average of projections and stability results." Mathematical Proceedings of the Cambridge Philosophical Society 123, no. 3 (1998): 561–69. http://dx.doi.org/10.1017/s0305004197002405.

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Analysis of projections of a convex body is a familiar topic in tomography. However, instead of considering standard projection bodies, this work investigates a convex body introduced by Schneider [8] which is a Minkowski average of projections. The question addressed here is similar to that posed by Goodey and Weil [4] with respect to Minkowski averages of sections, as opposed to projections, that is, can the shape of a convex body be determined from random sections? Their main result shows that a body K is determined by the average of its two-dimensional sections, but not by the average of i

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Zheng, T., and C. J. Wilson. "Corticostriatal Combinatorics: The Implications of Corticostriatal Axonal Arborizations." Journal of Neurophysiology 87, no. 2 (2002): 1007–17. http://dx.doi.org/10.1152/jn.00519.2001.

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The complete striatal axonal arborizations of 16 juxtacellularly stained cortical pyramidal cells were analyzed. Corticostriatal neurons were located in the medial agranular or anterior cingulate cortex of rats. All axons were of the extended type and formed synaptic contacts in both the striosomal and matrix compartments as determined by counterstaining for the mu-opiate receptor. Six axonal arborizations were from collaterals of brain stem-projecting cells and the other 10 from bilaterally projecting cells with no brain stem projections. The distribution of synaptic boutons along the axons w

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Fikri Aulia Rahman and Cicillia Artitin. "Perbandingan Hasil Gambaran Os Processus Coracoid yang Optimal Pada Proyeksi AP Axial dengan Arah Sinar 200, 300, 400 Cranially." JRI (Jurnal Radiografer Indonesia) 7, no. 2 (2024): 78–81. https://doi.org/10.55451/jri.v7i2.294.

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Background: One part of the scapula that is usually done separately is the coracoid process. The coracoid process will look better with AP positioning of the scapula with the hand abducted and the cranial beam direction can show the coracoid process well. The angle used is between 15 to 45 degrees with the direction of the cephalad beam. This photoshoot is usually done in cases of trauma. To obtain accurate information in establishing a diagnosis, the researcher decided to conduct a study on the comparison of radiographic results to obtain the optimal coracoid process with 200 , 300 , and 400

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Utomo, Kunto, and Priadi Surya. "Comparison of Student and Class Projection Methods in Indonesia Primary and Secondary Education." Jurnal Pendidikan dan Pengajaran 58, no. 1 (2025): 144–56. https://doi.org/10.23887/jpp.v58i1.89657.

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Accurate planning in education requires reliable student and class size projections to anticipate resource needs, address challenges and ensure education quality. This study aims to respond to the need to evaluate various projection methods to identify the most effective approach in estimating student and class size in educational institutions in Indonesia, while assessing the effectiveness of eight different methods in projecting student and class size. The method used is comparative research with quantitative analysis techniques. The subjects of this study were the number of students and stu

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Wu, Tung-Lung. "Improved Test for High-Dimensional Mean Vectors and Covariance Matrices Using Random Projection." Mathematics 13, no. 13 (2025): 2060. https://doi.org/10.3390/math13132060.

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This paper proposes an improved random projection-based method for testing high-dimensional two-sample mean vectors and covariance matrices. For mean testing, the proposed approach incorporates training data to guide the construction of projection matrices toward the estimated mean difference, thereby substantially enhancing the power of the projected Hotelling’s T2 statistic. We introduce three aggregation strategies—maximum, average, and percentile-based—to ensure stable performance across multiple projections. For covariance testing, the method employs data-driven projections aligned with t

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Shi, Yanhui, Xiaojian Hao, Xiaodong Huang, Pan Pei, Shuaijun Li, and Tong Wei. "Multi-View Synthesis of Sparse Projection of Absorption Spectra Based on Joint GRU and U-Net." Applied Sciences 14, no. 9 (2024): 3726. http://dx.doi.org/10.3390/app14093726.

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Tunable diode laser absorption spectroscopy (TDLAS) technology, combined with chromatographic imaging algorithms, is commonly used for two-dimensional temperature and concentration measurements in combustion fields. However, obtaining critical temperature information from limited detection data is a challenging task in practical engineering applications due to the difficulty of deploying sufficient detection equipment and the lack of sufficient data to invert temperature and other distributions in the combustion field. Therefore, we propose a sparse projection multi-view synthesis model based

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Liang, Ji Sheng, Xi Feng Tong, and Zi Bo Yuan. "The Circular Seal Identification Method Based on Average Relative Error." Applied Mechanics and Materials 513-517 (February 2014): 4338–41. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.4338.

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This paper proposes a circular seal identification method which based on the average relative error. First it spread out the circular seal into rectangular ones, so as to gain the seal of rectangular image, then it projects the rectangular seal to get projection curve. using projection curve of the reserved seal and the cyclic shift of detected seal projection curve to achieve registration. It calculated the average relative error that according to the registration after the reserved seal and detected seal. With the average relative error of the seal get the authenticity. The experimental resu

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Teeter, Lawrence, and Xiaoping Zhou. "Projecting Timber Inventory at the Product Level." Forest Science 45, no. 2 (1999): 226–31. http://dx.doi.org/10.1093/forestscience/45.2.226.

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Abstract Current timber inventory projections generally lack information on inventory by product classes. Most models available for inventory projection and linked to supply analyses are limited to projecting aggregate softwood and hardwood. The research presented describes a methodology for distributing the volume on each FIA (USDA Forest Service Forest Inventory and Analysis) survey plot to product classes given a type characterization, volume, and average dbh (diameter at breast height, 1.37 m above average ground level) for the plot. A multinomial logit model was developed to estimate sets

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Bruehs, Walter E., and Dorothy Stout. "Determination of average vehicle speed utilizing reverse projection." Journal of Forensic Sciences 67, no. 1 (2021): 188–99. http://dx.doi.org/10.1111/1556-4029.14891.

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Alber, Ya I. "ON AVERAGE CONVERGENCE OF THE ITERATIVE PROJECTION METHODS." Taiwanese Journal of Mathematics 6, no. 3 (2002): 323–41. http://dx.doi.org/10.11650/twjm/1500558299.

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Hariyono, Didik. "Impact of Climate Variation on Potato (Solanum tuberosum L.) based on Climate Projections until 2100." International Journal of Environment, Agriculture and Biotechnology 9, no. 2 (2024): 143–52. http://dx.doi.org/10.22161/ijeab.92.16.

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One of the challenges faced in cultivating potatoes is global warming, which has the potential to result in an increase in atmospheric temperatures, as well as changes in various climate variabilities that can affect the planting season, growth, and crop yields. This research aims to project an increase in atmospheric temperature until 2100 in two production center areas based on climate projection models in three Representative Concentration Pathways (RCP) scenarios, as well as projecting potato crop productivity in these two locations based on climate projection results. This research was ca

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Vivi Al Fara, Zaenal Arifin, and Evi Setiawati. "Analysis of the Effect of Irradiation Projection on the Signal-to-Noise Ratio in Mammography Images." International Journal of Scientific Research in Science and Technology 12, no. 3 (2025): 809–14. https://doi.org/10.32628/ijsrst25123089.

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Mammography is a special type of radiography for the breast, to increase the contrast in breast images, mammography uses much lower X-ray energy compared to general radiography. Mammography is the best technology available for early detection of breast cancer. Image quality is one of the main things to consider in viewing the quality of mammography. This study aims to analyze the effect of radiation projection on image quality in mammography images using the Signal to Noise Ratio (SNR) parameter so as to produce the highest Signal to Noise Ratio (SNR) value for Mediolateral oblique (MLO) and C

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Nuari, Alvian, R. Hery Koeshardjono, and M. Saiful Bahri. "KOMPARASI METODE MOVING AVERAGE DAN TREND PROJECTION SEBAGAI ALAT UKUR PERENCANAAN PRODUKSI PADA UD. JAYA ABADI KABUPATEN PROBOLINGGO." Yudishtira Journal : Indonesian Journal of Finance and Strategy Inside 1, no. 3 (2021): 135–50. http://dx.doi.org/10.53363/yud.v1i3.9.

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The purpose of this research is to find out the comparison of forecasting calculations using the moving average and trend projection methods as a means measuring tool in production planning at UD. Jaya Abadi Probolinggo Regency. The type of research used is quantitative descriptive. Population and sample in this research is UD production data. Jaya Abadi Probolinggo Regerency from 2018 to March 2021. Data analysis using the moving average and trend projection methods which aim to predict future production or the next period. The results showed that the value of MAD (Mean Absolute Deviation) an

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Nuari, Alvian, R. Hery Koeshardjono, and M. Saiful Bahri. "KOMPARASI METODE MOVING AVERAGE DAN TREND PROJECTION SEBAGAI ALAT UKUR PERENCANAAN PRODUKSI PADA UD. JAYA ABADI KABUPATEN PROBOLINGGO." Yudishtira Journal : Indonesian Journal of Finance and Strategy Inside 1, no. 2 (2021): 111–26. http://dx.doi.org/10.53363/yud.v1i2.9.

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The purpose of this research is to find out the comparison of forecasting calculations using the moving average and trend projection methods as a means measuring tool in production planning at UD. Jaya Abadi Probolinggo Regency. The type of research used is quantitative descriptive. Population and sample in this research is UD production data. Jaya Abadi Probolinggo Regerency from 2018 to March 2021. Data analysis using the moving average and trend projection methods which aim to predict future production or the next period. The results showed that the value of MAD (Mean Absolute Deviation) an

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Gao, Yuan, Yuyun Zhao, Le Xie, and Guoyan Zheng. "A Projector-Based Augmented Reality Navigation System for Computer-Assisted Surgery." Sensors 21, no. 9 (2021): 2931. http://dx.doi.org/10.3390/s21092931.

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In the medical field, guidance to follow the surgical plan is crucial. Image overlay projection is a solution to link the surgical plan with the patient. It realizes augmented reality (AR) by projecting computer-generated image on the surface of the target through a projector, which can visualize additional information to the scene. By overlaying anatomical information or surgical plans on the surgery area, projection helps to enhance the surgeon’s understanding of the anatomical structure, and intuitively visualizes the surgical target and key structures of the operation, and avoid the surgeo

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Manzaneda Cipriani, Raúl M., and Gerardo A. Adrianzen. "Ribs with Anterior Protrusion (Winged Ribs) Treated Using Percutaneous Chondroplasty." Plastic and Reconstructive Surgery - Global Open 12, no. 9 (2024): e6178. http://dx.doi.org/10.1097/gox.0000000000006178.

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Background: Thoracic features play a significant role in determining various plastic surgery techniques. Particularly, the thorax has potential for excessive anterior projection, commonly referred to as winged ribs. This study aimed to describe a treatment method for addressing winged ribs for aesthetic purposes using percutaneous chondral management. Methods: Thirty-two female patients underwent FrontXribs from February to March 2023. Two angular measurements were obtained: (1) the angle formed by lines intersecting tangentially to the shoulder and the lower gluteal border; and (2) the angle

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Vira Shinthya, Ade, and Supriyadi Supriyadi. "Teknik Persuasif dalam Buku Jangan Mau Jadi Orang Rata-Rata Karya Ahmadi Rifa’i Rif’an." J-LELC: Journal of Language Education, Linguistics, and Culture 1, no. 1 (2021): 105–12. http://dx.doi.org/10.25299/j-lelc.2021.6440.

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This research is entitled Persuasive Techniques in Book Don’t Want to Be Average People by Ahmad Rifa’i Rif’an. This research is motivated by the existence of several persuasive techniques in the book Persuasive Techniques in the book Don’t Want to Be an Average Person which influences the reader. Research problem: how are persuasive techniques rationalization, identification, suggestion, replacement, projection in the book Don’t Want to Be an Average Person Ahmad Rifa’i Rif’an?. The porpose of this study: to describe, analyze, and interpret persuasive techniques rationalization, identificatio

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Finlayson, Gregory S., David Stewart, Robert B. Tate, Leonard MacWilliam, and Noralou Roos. "Anticipating Change: How Many Acute Care Hospital Beds Will Manitoba Regions Need in 2020?" Canadian Journal on Aging / La Revue canadienne du vieillissement 24, S1 (2005): 133–40. http://dx.doi.org/10.1353/cja.2005.0045.

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ABSTRACTBeing able to anticipate future needs for health services presents a challenge for health planners. Using existing population projections, two models are presented to estimate the demand for hospital beds in regions of Manitoba in 2020. The first, a current-use projection model, simply projects the average use for a recent three-year period into the future. The second, a 10-year trend analysis, uses Poisson regression to project future demand. The current-use projection suggests a substantial increase in the demand for hospital beds, while the trend analysis projects a decline. The las

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Pei, Lei, Zhitao Xiao, Lei Geng, Jun Wu, Fang Zhang, and Ying Sun. "Surface parameters measurement for braided composite preform based on gray projection." Journal of Engineered Fibers and Fabrics 14 (January 2019): 155892501988762. http://dx.doi.org/10.1177/1558925019887621.

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In this article, a method based on gray projection is proposed for automatic measurement of surface braiding angle and pitch length of braided composite preforms. The surface braiding angles are measured by rotated gray projection. First, the original image is preprocessed using Lab transform and block-matching and three-dimensional filter. Then, edge map of gray scale is acquired based on phase congruency and non-maximum suppression. Third, edge direction angles are computed by image rotation and gray projection. Finally, the average surface braiding angles are measured from the edge directio

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Luo, Z., E. Wang, H. Zheng, J. A. Baldock, O. J. Sun, and Q. Shao. "Convergent modelling of past soil organic carbon stocks but divergent projections." Biogeosciences 12, no. 14 (2015): 4373–83. http://dx.doi.org/10.5194/bg-12-4373-2015.

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Abstract. Soil carbon (C) models are important tools for understanding soil C balance and projecting C stocks in terrestrial ecosystems, particularly under global change. The initialization and/or parameterization of soil C models can vary among studies even when the same model and data set are used, causing potential uncertainties in projections. Although a few studies have assessed such uncertainties, it is yet unclear what these uncertainties are correlated with and how they change across varying environmental and management conditions. Here, applying a process-based biogeochemical model to

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Akbar, Muhammad Faisal, Wina Wina, Khair Affandi Akbar, Dede Hendriano, Annisak Annisak, and Fieska Yollanda. "COMPARATIVE STUDY OF CHILLI PRICE PROJECTIONS IN SUMATERA VS JAVA ISLAND." Journal of Integrated Agribusiness 4, no. 2 (2022): 53–66. http://dx.doi.org/10.33019/jia.v4i2.3566.

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The agricultural sector is a sector that plays an important role in the national economy. Indonesia has determined several potential superior commodities based on economic value and high market demand. Several horticultural commodities that have been designated as leading commodities by Indonesia are various chilies, shallots and oranges. This study intends to conduct a study on the projection (forecasting) of cayenne pepper prices on the island of Sumatra and Java island using a time-series analysis approach. Time-series data has advantages in terms of analysis and projection so that research

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Campi, Stefano, and Paolo Gronchi. "On Projection Bodies of Order One." Canadian Mathematical Bulletin 52, no. 3 (2009): 349–60. http://dx.doi.org/10.4153/cmb-2009-038-6.

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AbstractThe projection body of order one Π1K of a convex body K in ℝn is the body whose support function is, up to a constant, the average mean width of the orthogonal projections of K onto hyperplanes through the origin.The paper contains an inequality for the support function of Π1K, which implies in particular that such a function is strictly convex, unless K has dimension one or two. Furthermore, an existence problem related to the reconstruction of a convex body is discussed to highlight the different behavior of the area measures of order one and of order n – 1.

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Toersilowati, L., B. Siswanto, E. Maryadi, et al. "The Projections of Climate Change using Conformal Cubic Atmospheric Model (CCAM) in Bali - Indonesia." IOP Conference Series: Earth and Environmental Science 1047, no. 1 (2022): 012033. http://dx.doi.org/10.1088/1755-1315/1047/1/012033.

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Abstract Research on climate change was conducted in Bali, Indonesia, using the Conformal Cubic Atmospheric Model (CCAM), which works with the Representative Concentration Pathway (RCP) 4.5. The history data means average data from 1971 to 2000, climate projections with RCP4.5 scenario means average data from 2040 to 2069, and anomaly (climate change) is RCP4.5 minus history. The results represent the history of temperature between 22.5-27.5 0C and the projection between 25.5-29.5 0C. Temperature anomalies can be observed in much of northern Bali, which has increased from about 1.6 to 2.9 0C.

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Dalimunthe, Desy Yuliana, Ineu Sulistiana, Darman Saputra, Herman Aldila, and Sisilia Jesika Pririzki. "PROJECTION OF THE INFLATION RATE IN PANGKALPINANG CITY USING THE AUTOREGRESSIVE MOVING AVERAGE (ARMA)." BAREKENG: Jurnal Ilmu Matematika dan Terapan 17, no. 3 (2023): 1513–20. http://dx.doi.org/10.30598/barekengvol17iss3pp1513-1520.

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Inflation is one of the variables in the macro economy that can affect people's welfare and is defined as a complex phenomenon due to general and continuous price increases. This study aims to project the inflation rate in Pangkalpinang City, Bangka Belitung Islands Province in the period of October, November, and December of 2022. The historical inflation data used in this study is presented in a monthly period from January 2004 ends in October 2022 and January 2023 obtained from the publication of the Central Statistics Agency (BPS) of the Bangka Belitung Islands Province. The process projec

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Lee, Jae-Seung, and A. K. Khitrin. "Projection of a quantum state on eigenstates of average Hamiltonian." Journal of Magnetic Resonance 198, no. 2 (2009): 248–51. http://dx.doi.org/10.1016/j.jmr.2009.02.013.

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Bonilha, Heather Shaw, Janina Wilmskoetter, Sameer Tipnis, Janet Horn, Bonnie Martin-Harris, and Walter Huda. "Relationships Between Radiation Exposure Dose, Time, and Projection in Videofluoroscopic Swallowing Studies." American Journal of Speech-Language Pathology 28, no. 3 (2019): 1053–59. http://dx.doi.org/10.1044/2019_ajslp-18-0271.

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Purpose Clinicians are trained to rely on radiation exposure time as an indicator of patient radiation exposure in Videofluoroscopic Swallowing Studies (VFSSs). However, it has been shown in other medical uses of fluoroscopy that dose area product (DAP), the amount of radiation delivered to the patient, is a better indicator of overall patient radiation exposure than radiation exposure time. This study sought to understand the relationship of DAP in VFSSs with radiation exposure time and projection used (lateral vs. posterior–anterior [PA]). Method DAP, radiation exposure time, and projection

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Wang, Yibo, Yuanyu Wan, Shimao Zhang, and Lijun Zhang. "Distributed Projection-Free Online Learning for Smooth and Convex Losses." Proceedings of the AAAI Conference on Artificial Intelligence 37, no. 8 (2023): 10226–34. http://dx.doi.org/10.1609/aaai.v37i8.26218.

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We investigate the problem of distributed online convex optimization with complicated constraints, in which the projection operation could be the computational bottleneck. To avoid projections, distributed online projection-free methods have been proposed and attain an O(T^{3/4}) regret bound for general convex losses. However, they cannot utilize the smoothness condition, which has been exploited in the centralized setting to improve the regret. In this paper, we propose a new distributed online projection-free method with a tighter regret bound of O(T^{2/3}) for smooth and convex losses. Spe

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Giannopoulos, Apostolos, Alexander Koldobsky, and Petros Valettas. "Inequalities for the Surface Area of Projections of Convex Bodies." Canadian Journal of Mathematics 70, no. 4 (2018): 804–23. http://dx.doi.org/10.4153/cjm-2016-051-x.

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AbstractWe provide general inequalities that compare the surface area S(K) of a convex body K in ℝn to the minimal, average, or maximal surface area of its hyperplane or lower dimensional projections. We discuss the same questions for all the quermassintegrals of K. We examine separately the dependence of the constants on the dimension in the case where K is in some of the classical positions or K is a projection body. Our results are in the spirit of the hyperplane problem, with sections replaced by projections and volume by surface area.

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Saputri, Tri Aristi, Allien Moetiara Rachma Ajiz, and Dani Febritama. "Comparative Study of the ARIMA Method and Multiple Linear Regression in Metro City Population Growth Projections." Journal of Applied Informatics and Computing 9, no. 2 (2025): 542–46. https://doi.org/10.30871/jaic.v9i2.9097.

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This study aims to compare the effectiveness of the ARIMA (Autoregressive Integrated Moving Average) method and multiple linear regression in projecting population growth in Metro City, Lampung. The analysis utilizes population data from 2010 to 2022, sourced from the Central Statistics Agency and the Population and Civil Registration Office. The methodologies employed include ARIMA modelling and multiple linear regression, with model evaluation conducted using metrics such as Mean Absolute Percentage Error (MAPE) and Root Mean Square Error (RMSE). The findings indicate that the multiple linea

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McKee, Jacob J., Amy N. Rose, Edward A. Bright, Timmy Huynh, and Budhendra L. Bhaduri. "Locally adaptive, spatially explicit projection of US population for 2030 and 2050." Proceedings of the National Academy of Sciences 112, no. 5 (2015): 1344–49. http://dx.doi.org/10.1073/pnas.1405713112.

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Localized adverse events, including natural hazards, epidemiological events, and human conflict, underscore the criticality of quantifying and mapping current population. Building on the spatial interpolation technique previously developed for high-resolution population distribution data (LandScan Global and LandScan USA), we have constructed an empirically informed spatial distribution of projected population of the contiguous United States for 2030 and 2050, depicting one of many possible population futures. Whereas most current large-scale, spatially explicit population projections typicall

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Lau, Benjamin K. F., Tess Reynolds, Paul J. Keall, et al. "Reducing 4DCBCT imaging dose and time: exploring the limits of adaptive acquisition and motion compensated reconstruction." Physics in Medicine & Biology 67, no. 6 (2022): 065002. http://dx.doi.org/10.1088/1361-6560/ac55a4.

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Abstract This study investigates the dose and time limits of adaptive 4DCBCT acquisitions (adaptive-acquisition) compared with current conventional 4DCBCT acquisition (conventional-acquisition). We investigate adaptive-acquisitions as low as 60 projections (∼25 s scan, 6 projections per respiratory phase) in conjunction with emerging image reconstruction methods. 4DCBCT images from 20 patients recruited into the adaptive CT acquisition for personalized thoracic imaging clinical study (NCT04070586) were resampled to simulate faster and lower imaging dose acquisitions. All acquisitions were reco

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Cruciol e Souza, Luiza, Daniela Mayumi Usuda Prado Rocha, Guilherme Henrique Da Silva Costa, Luiza Carla Vidigal Castro, and Helen Hermana Miranda Hermsdorff. "Mapping and projections of obesity in the Brazilian adult population assisted in Primary Health Care: impact of the COVID-19 pandemic." HSJ 14 (July 23, 2024): e1499. http://dx.doi.org/10.21876/hsjhci.v14.2024.e1499.

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Objective: To map the temporal evolution of overweight and obesity in Brazilian adults and estimate the prevalence of obesity for 2025 and 2030, evaluating the potential impact of the COVID-19 pandemic. Method: Data were collected on the nutritional status of adults from 2008 to 2021 from the Food and Nutrition Surveillance System (SISVAN), from which we calculated the prevalence and average annual rates of the variation of overweight and obesity. The projection of obesity, using linear regression, was analyzed in three scenarios: PP: with data from the pre-pandemic period (2008- 2019); outlie

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Pataropura, Amesanggeng, Ivan Darmawan Sabatino, and Riki Riki. "Inventory Management with Forecasting Method: Single Moving Average and Trend Projection." bit-Tech 2, no. 3 (2020): 110–21. http://dx.doi.org/10.32877/bt.v2i3.162.

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Inventory management using forecasting methods aims to improve effectiveness and efficiency that facilitate trading businesses in the process of business transactions, improve delivery of information quickly, accurately, and transaction data properly and minimize errors. The system running in the system of selling goods is still manual, that is, it is not well computerized. The method used is forecasting which helps determine the estimated future stock of goods. Single Moving Average and Trend Projection. It can be concluded that the results of implementing this new system can assist trading b

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Liu, Benxi, Jay Lund, Lingjun Liu, Shengli Liao, Gang Li, and Chuntian Cheng. "Climate Change Impacts on Hydropower in Yunnan, China." Water 12, no. 1 (2020): 197. http://dx.doi.org/10.3390/w12010197.

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Climate change could have dire effects on hydropower systems, especially in southwest China, where hydropower dominates the regional power system. This study examines two large cascade hydropower systems in Yunnan province in southwest China for 10 climate change projections made with 5 global climate models (GCMs) and 2 representative concentration pathways (RCPs) under Coupled Model Intercomparison Project Phase 5 (CMIP5). First, a back propagation neural network rain-runoff model is built for each hydropower station to estimate inflows with climate change. Then, a progressive optimality alg

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Randall, Bryan L., Alan R. Ek, Jerold T. Hahn, and Roland G. Buchman. "STEMS Model Projection Capability with Incomplete Tree List Input Data." Northern Journal of Applied Forestry 5, no. 3 (1988): 190–94. http://dx.doi.org/10.1093/njaf/5.3.190.

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Abstract Projections were made using the STEMS individual tree based stand growth model for plots in red pine, maple-birch, and aspen cover types for periods up to 50 years. Effects of incomplete tree list input data on plots in the form of small tree censorship (omission of small trees) and tree list aggregation (by size class) were examined by comparing projections made for complete plot tree lists (controls) with projections made after these tree lists were censored and aggregated (treatments). Basal area and number of trees estimates proved highly sensitive to censorship, while volume esti

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Hermann, N. V., B. L. Jensen, E. Dahl, T. A. Darvann, and S. Kreiborg. "A Method for Three-Projection Infant Cephalometry." Cleft Palate-Craniofacial Journal 38, no. 4 (2001): 299–316. http://dx.doi.org/10.1597/1545-1569_2001_038_0299_amftpi_2.0.co_2.

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Objective: To assess morphology and growth in infants and children with craniofacial anomalies based on comprehensive digitization of radiographic films in three, mutually orthogonal projections. Method: The method consists of (1) acquisition of radiographic films in a highly standardized three-projection (lateral, frontal, and axial) cephalometer, (2) marking and digitization of a total of 279 anatomical landmarks in the three projections, and (3) computation and presentation (tabular and graphical) of 356 linear and angular variables describing the craniofacial morphology, including soft tis

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Kononov, Y., and D. Kononov. "Dependence of the Possible and Allowable Projection Error on the Projection Time Frame." Energy Systems Research, no. 1(13) (May 28, 2021): 5–8. http://dx.doi.org/10.38028/esr.2021.01.0001.

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This study addresses the issues of assessing and factoring in the effect of uncertainty growth on the possible performance of projections and their allowable errors. Relying on projects of nuclear power plants and combined cycle power plants as a case study, we assess the dependence of their economic performance indicators on possible changes in the conditions of their future operation in a given year. To assess the effect of the range and nature of input data uncertainty on the projections of the development of regional energy supply systems, we proposed a methodological toolkit that combines

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Wang, Kang, Zujun Ou, Hong Qin, and Na Zou. "Projection Uniformity of Asymmetric Fractional Factorials." Axioms 11, no. 12 (2022): 716. http://dx.doi.org/10.3390/axioms11120716.

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The objective of this paper is to study the issue of the projection uniformity of asymmetric fractional factorials. On the basis of level permutation and mixture discrepancy, the average projection mixture discrepancy to measure the uniformity for low-dimensional projection designs is defined, the uniformity pattern and minimum projection uniformity criterion are presented for evaluating and comparing any asymmetric factorials. Moreover, lower bounds to uniformity pattern have been obtained, and some illustrative examples are also provided.

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Sima, Qian, Hui Feng, and Bo Hu. "Latitude-Adaptive Integer Bit Allocation for Quantization of Omnidirectional Images." Applied Sciences 14, no. 5 (2024): 1861. http://dx.doi.org/10.3390/app14051861.

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Omnidirectional images have gained significant popularity and drawn great attention nowadays, which poses challenges to omnidirectional image processing in solving the bottleneck of storage and transmission. Projecting onto a two-dimensional image plane is generally used to compress an omnidirectional image. However, the most commonly used projection format, the equirectangular projection (ERP), results in a significant amount of redundant samples in the polar areas, thus incurring extra bitrate and geometric distortion. We derive the optimal latitude-adaptive bit allocation for each image til

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Fan, Zhongmou, Wenxuan Zhang, Ruiyang Zhang, Jinhuang Wei, Zhanyong Wang, and Yunkai Ruan. "Classification of Tree Species Based on Point Cloud Projection Images with Depth Information." Forests 14, no. 10 (2023): 2014. http://dx.doi.org/10.3390/f14102014.

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To address the disorderliness issue of point cloud data when directly used for tree species classification, this study transformed point cloud data into projected images for classification. Building upon this foundation, the influence of incorporating multiple distinct projection perspectives, integrating depth information, and utilising various classification models on the classification of tree point cloud projected images was investigated. Nine tree species in Sanjiangkou Ecological Park, Fuzhou City, were selected as samples. In the single-direction projection classification, the X-directi

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Vasic, Petar. "Household projections by the headship rates method: The case of Serbia." Stanovnistvo 55, no. 2 (2017): 69–89. http://dx.doi.org/10.2298/stnv1702069v.

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The headship rates method (HRM) of household projections based on the share of household heads in the total population of the same demographic characteristics (age, sex, nationality, marital status, etc.) is the most commonly used method, especially by statistical institutes and planning institutions. The specific rates of household heads by age are calculated by dividing the number of household holders of a certain age with the total number of residents of the appropriate age. The future number of households is then simply projected on the basis of population projections by age and assumption

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Wang, Yuwei, Haojie Zhu, Jiaxu Cai, and Yajun Wang. "Intensity-Averaged Double Three-Step Phase-Shifting Algorithm with Color-Encoded Fringe Projection." Photonics 9, no. 3 (2022): 173. http://dx.doi.org/10.3390/photonics9030173.

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Fringe projection profilometry (FPP) has been broadly employed for three-dimensional shape measurements. However, the measurement accuracy suffers from gamma nonlinearity. This paper proposes an intensity-averaged double three-step phase-shifting (IDTP) algorithm making use of color-encoded fringe projection, which does not require complex calibration processes or extra fringe patterns. Specifically, two phase maps with π/2 phase shift are encoded into the red and blue channels of color fringe patterns. The average fringe patterns of the red and blue channels are approximately in sinusoidal wa

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Aaskov, Jacob, Gregory N. Kawchuk, Kenton D. Hamaluik, Pierre Boulanger, and Jan Hartvigsen. "X-ray vision: the accuracy and repeatability of a technology that allows clinicians to see spinal X-rays superimposed on a person's back." PeerJ 7 (February 13, 2019): e6333. http://dx.doi.org/10.7717/peerj.6333.

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Objective Since the discovery of ionizing radiation, clinicians have evaluated X-ray images separately from the patient. The objective of this study was to investigate the accuracy and repeatability of a new technology which seeks to resolve this historic limitation by projecting anatomically correct X-ray images on to a person’s skin. Methods A total of 13 participants enrolled in the study, each having a pre-existing anteroposterior lumbar X-ray. Each participant’s image was uploaded into the Hololens Mixed reality system which when worn, allowed a single examiner to view a participant’s own

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Ilhamsyah, Yopi, Yustya Rahmy, Marwan Marwan, and Kadarsah Kadarsah. "Analysis of Projected Temperature Changes in Aceh Province." POSITRON 13, no. 2 (2023): 166. http://dx.doi.org/10.26418/positron.v13i2.60389.

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The objective is to analyse temperature changes and their future projection in Aceh. The activities consist of collecting past and future temperature data, preparing materials for processing, and analyzing past and future temperature data (climate change projections). The data used are monthly average temperature data from data global climate model, e.g., csiromk3.6-hist-1986-2005-tas, csiromk3.6-rcp45- 2016-2035-tas, csiromk3.6-rcp45-2046-2065-tas, csiromk3.6-rcp45-2081-2100- tas, csiromk3.6-rcp85-2016-2035-tas, csiromk3.6-rcp85-2046-2065-tas, and csiromk3.6-rcp85-2081-2100-tas. The study beg

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Chodyn, Maciej, Pawel Kuczera, and Janusz Wolny. "Average unit cell for the Generalized Penrose Tiling." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C88. http://dx.doi.org/10.1107/s2053273314099112.

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The Generalized Penrose Tiling (GPT) can be considered a promising alternative for Penrose Tiling (PT) as a model for decagonal quasicrystal refinement procedure, particularly in the statistical approach (also called the Average Unit Cell (AUC) approach) [1]. The statistical method using PT has been successfully applied to the structure optimization of various decagonal phases [2]. The application of the AUC concept to the GPT will be presented. In the higher dimensional (nD) approach, PT is obtained by projecting a 5D hypercubic lattice through a window consisting of four pentagons, called th

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Tsudou, S., H. Takegawa, M. Takashina, H. Numasaki, and T. Teshima. "A Comparison of Lung Tumor Shadow on Maximum Intensity Projection and Average Intensity Projection of Respiratory Correlated Simulation CT." International Journal of Radiation Oncology*Biology*Physics 84, no. 3 (2012): S564. http://dx.doi.org/10.1016/j.ijrobp.2012.07.1502.

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Fukuda, Shunya, Shingo Kagami, and Koichi Hashimoto. "Evaluation of Perceptual Difference in Dynamic Projection Mapping with and without Movement of the Target Surface." Journal of Robotics and Mechatronics 34, no. 5 (2022): 1141–51. http://dx.doi.org/10.20965/jrm.2022.p1141.

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High-frame-rate visual feedback has been proven effective for projection mapping on quickly moving targets. However, the quantitative conditions of frame rates have not been elucidated. In particular, considering that the human dynamic visual acuity generally declines as the moving target velocity increases, it may be argued that the tracking accuracy required for projection mapping on moving targets can be lower than that required for fixed targets. To examine the above-mentioned conditions of frame rates, this study compares them based on two types of projection mapping systems having equiva

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