Relevant bibliographies by topics / 3DUS

Academic literature on the topic '3DUS'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "3DUS"

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Wataganara, Tuangsit, Piengbulan Yapan, Sakita Moungmaithong, Nalat Sompagdee, Nisarat Phithakwatchara, Pattarawan Limsiri, Katika Nawapun, Thanapa Rekhawasin, and Pattarawalai Talungchit. "Additional benefits of three-dimensional ultrasound for prenatal assessment of twins." Journal of Perinatal Medicine 48, no. 2 (February 25, 2020): 102–14. http://dx.doi.org/10.1515/jpm-2019-0409.

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AbstractThree-dimensional ultrasound (3DUS) may provide additional information for prenatal assessment of twins. It may improve the diagnostic confidence of dating, nuchal translucency (NT) and chorionicity assignment in twin pregnancies. The “virtual 3DUS placentoscopy” can guide selective fetoscopic laser photocoagulation (SFLP) to treat twin-twin transfusion syndrome (TTTS). Volumetric assessment of the dysmorphic acardiac twin with the Virtual Organ Computer-aided Analysis (VOCAL) software is more accurate than the conventional ultrasound measurement. Twin anemia polycythemia (TAP) sequence and selective intrauterine growth restriction (sIUGR) may be clinically monitored with 3DUS placental volume (PV) and power Doppler vascular indices. Congenital anomalies are more common in twins. Evaluation of fetal anomalies with 3DUS could assist perinatal management. The 3DUS power Doppler can provide a better understanding of true and false umbilical cord knots, which are commonly found in monoamniotic (MA) twins. Single demise in monochorionic (MC) twin pregnancies can cause severe neurologic morbidity in the surviving co-twin. Prenatal prediction of brain injury in the surviving co-twin with unremarkable neurosonographic examination is difficult. The 3DUS power Doppler may aid in prenatal detection of subtle abnormal cerebral perfusion. Prenatal assessment of conjoined twins with 3DUS is important if emergency postnatal surgical separation is anticipated. There is no significant additional advantage in using real-time 3DUS to guide prenatal interventions. Assessment of the cervix and pelvic floor during twin pregnancies is enhanced with 3DUS. Due to lack of high-quality studies, routine prenatal 3DUS in twin pregnancies needs to be balanced with risks of excessive ultrasound exposure.
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Ahmadi, Firoozeh, Farnaz Akhbari, Fatemeh Niknejad, Hadieh Haghighi, Zahra Ghahremani, Fariba Ramezanali, and Mohammad Chehrazi. "Diagnostic Accuracy of Three-dimensional Ultrasonography in Detection of Endometrial Lesions compared with Hysteroscopy in Infertile Women." Donald School Journal of Ultrasound in Obstetrics and Gynecology 10, no. 4 (2016): 393–97. http://dx.doi.org/10.5005/jp-journals-10009-1490.

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ABSTRACT Introduction Two of the most frequent procedures performed on infertile women are two-dimensional ultrasound (2DUS) and three-dimensional ultrasound (3DUS). Hysteroscopy is considered as the gold standard for evaluation of acquired endometrial lesions in infertile women; however, 3DUS is used as a noninvasive, less expensive, and reliable assessment method for evaluation of the intrauterine lesions in infertile women. We aimed to compare the diagnostic efficiency between 3DUS and hysteroscopy in the detection of lesions (polyps, submucous leiomyoma, and synechiae) in infertile women. Materials and methods In this prospective observational study, infertile women (n = 155) with indication of hysteroscopy were scheduled to undergo 3DUS prior to hysteroscopy from September 2010 to 2011. Women with suspected congenital uterine anomalies were excluded. The sensitivity and specificity values of 3DUS were compared with those of hysteroscopy. Hysteroscopy was used as the gold standard for diagnosis of intrauterine lesions in infertile women. Results Of the 155 women, 50 were found to have an intracavitary abnormality, 36 had polyps, 12 had myomas, and 7 had synechiae on hysteroscopic findings. Examination with 3DUS in the diagnosis of intrauterine lesions reached an accuracy of 94%, and 92.15 and 96.9% of sensitivity and specificity respectively. Positive predictive value (PPV) was 83.9%, and a negative predictive value (NPV) was 91.3% (LR+ = 10.75, LR+ = 0.065). Conclusion According to our results, 3DUS has a reliable diagnostic accuracy for intrauterine lesions, and it may limit unnecessary hysteroscopy in patients with normal results. How to cite this article Ahmadi F, Haghighi H, Ghahremani Z, Niknejad F, Akhbari F, Ramezanali F, Chehrazi M. Diagnostic Accuracy of Three-dimensional Ultrasonography in Detection of Endometrial Lesions compared with Hysteroscopy in Infertile Women. Donald School J Ultrasound Obstet Gynecol 2016;10(4):393-397.
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de Barros, Fernanda Silveira Bello, Luiz Cláudio de Silva Bussamra, Edward Araujo Júnior, Leonardo da Silva Valladão de Freitas, Luciano Marcondes Machado Nardozza, Antonio Fernandes Moron, and José Mendes Aldrighi. "Comparison of Fetal Cerebellum and Cisterna Magna Length by 2D and 3D Ultrasonography between 18 and 24 Weeks of Pregnancy." ISRN Obstetrics and Gynecology 2012 (November 14, 2012): 1–8. http://dx.doi.org/10.5402/2012/286141.

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To compare the fetal cerebellum and cisterna magna length measurements by means of two- (2DUS) and three-dimensional (3DUS) ultrasonography using the three-dimensional extended imaging (3D XI), a cross-sectional study with 69 healthy pregnant women between 18 and 24 weeks was performed. For the measurements by 2DUS, the axial planes were used and for the 3DUS a sequence of adjacent axial slices (multislice view). To evaluate the difference between the two techniques, we used the Wilcoxon test. To evaluate the correlation between the cerebellum and cisterna magna length measurements and the gestational age, we used the Spearman correlation coefficient (r). For the calculation of reproducibility, we used the intraclass correlation coefficient (ICC). The mean of the transverse and anterior-posterior diameter of cerebellum and cisterna magna by 3DUS was 9.23 and 6.62 mm, respectively. It was observed that the average of the measurements obtained by 3DUS was significantly higher, 0.76 and 1.02 mm for the length of the cerebellum and cisterna magna, respectively (P<0.001). There was a high correlation between the length measurement of the cerebellum 3D (r=0.940, P<0.001), but low correlation of cisterna magna 3D (r=0.462, P=0.080) with the gestational age. There was good intra- and interobserver reproducibility for the cerebellum and cisterna magna 3D with ICC=0.792 , 0.668, 0.691, and 0.287, respectively. The measurements of the fetal cerebellum and cisterna magna length by 3DUS using the software 3D XI were significantly higher than those obtained by 2DUS.
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Cruz, Lúcio Borges. "Basics on 3D Ultrasound." Donald School Journal of Ultrasound in Obstetrics and Gynecology 2, no. 4 (2008): 1–5. http://dx.doi.org/10.5005/jp-journals-10009-1071.

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Abstract In the last few years, technology has progressed to make ultrasound imaging a viable tool. Following Food and Drug Administration (FDA) approval of 3-dimensional ultrasound (3DUS) in November 1997, interest has increased to get more benefits from this new advance. Scientific advances in imaging processing in recent years have taken ultrasound into the next generation. Until recently, processing speeds were still too slow to offer real time benefit to 3D ultrasound systems. New developments with motion estimation and imaging registration techniques can allow 3D data acquisition to be accomplished without the need for position sensing devices. The purpose of this article is to review the basics on 3DUS, 3DUS the method and its mains advantages, limitations as well as to mention some frequent pitfalls. It is also aimed to remark important points in pre- and postprocessing.
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Hareendranathan, Abhilash R., Stephanie Wichuk, Kumaradevan Punithakumar, Sukhdeep Dulai, and Jacob Jaremko. "Normal variation of infant hip development." Bone & Joint Open 3, no. 11 (November 1, 2022): 913–23. http://dx.doi.org/10.1302/2633-1462.311.bjo-2022-0081.r1.

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Aims Studies of infant hip development to date have been limited by considering only the changes in appearance of a single ultrasound slice (Graf’s standard plane). We used 3D ultrasound (3DUS) to establish maturation curves of normal infant hip development, quantifying variation by age, sex, side, and anteroposterior location in the hip. Methods We analyzed 3DUS scans of 519 infants (mean age 64 days (6 to 111 days)) presenting at a tertiary children’s hospital for suspicion of developmental dysplasia of the hip (DDH). Hips that did not require ultrasound follow-up or treatment were classified as ‘typically developing’. We calculated traditional DDH indices like α angle (αSP), femoral head coverage (FHCSP), and several novel indices from 3DUS like the acetabular contact angle (ACA) and osculating circle radius (OCR) using custom software. Results α angle, FHC, and ACA indices increased and OCR decreased significantly by age in the first four months, mean αSP rose from 62.2° (SD 5.7°) to 67.3° (SD 5.2°) (p < 0.001) in one- to eight- and nine- to 16-week-old infants, respectively. Mean αSP and mean FHCSP were significantly, but only slightly, lower in females than in males. There was no statistically significant difference in DDH indices observed between left and right hip. All 3DUS indices varied significantly between anterior and posterior section of the hip. Mean 3D indices of α angle and FHC were significantly lower anteriorly than posteriorly: αAnt = 58.2° (SD 6.1°), αPost = 63.8° (SD 6.3°) (p < 0.001), FHCAnt = 43.0 (SD 7.4), and FHCPost = 55.4° (SD 11.2°) (p < 0.001). Acetabular rounding measured byOCR indices was significantly greater in the anterior section of the hip (p < 0.001). Conclusion We used 3DUS to show that hip shape and normal growth pattern vary significantly between anterior and posterior regions, by magnitudes similar to age-related changes. This highlights the need for careful selection of the Graf plane during 2D ultrasound examination. Whole-joint evaluation by obtaining either 3DUS or manual ‘sweep’ video images provides more comprehensive DDH assessment. Cite this article: Bone Jt Open 2022;3(11):913–923.
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Kravanja, Sanda Lah, Irena Hocevar-Boltezar, Maja Marolt Music, Ana Jarc, Ivan Verdenik, and Maja Ovsenik. "Three-dimensional ultrasound evaluation of tongue posture and its impact on articulation disorders in preschool children with anterior open bite." Radiology and Oncology 52, no. 3 (September 11, 2018): 250–56. http://dx.doi.org/10.2478/raon-2018-0032.

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Abstract Background Tongue posture plays an important role in the etiology of anterior open bite (AOB) and articulation disorders, and is crucial for AOB treatment planning and posttreatment stability. Clinical assessment of tongue posture in children is unreliable due to anatomical limitations. The aim of the study was to present functional diagnostics using three-dimensional ultrasound (3DUS) assessment of resting tongue posture in comparison to clinical assessment, and the associations between the improper tongue posture, otorhinolaryngological characteristics, and articulation disorders in preschool children with AOB. Patients and methods A cross-sectional study included 446 children, aged 3–7 years, 236 boys and 210 girls, examined by an orthodontist to detect the prevalence of AOB. The AOB was present in 32 children. The control group consisted of 43 children randomly selected from the participants with normocclusion. An orthodontist, an ear, nose and throat (ENT) specialist and a speech therapist assessed orofacial and ENT conditions, oral habits, and articulation disorders in the AOB group and control group. Tongue posture was also assessed by an experienced radiologist, using 3DUS. The 3DUS assessment of tongue posture was compared to the clinical assessment of orthodontist and ENT specialist. Results The prevalence of AOB was 7.2%. The AOB group and the control group significantly differed regarding improper tongue posture (p < 0.001), and articulation disorders (p < 0.001). In children without articulation disorders from both groups, the improper tongue posture occured less frequently than in children with articulation disorders (p < 0.001). After age adjustment, a statistical regression model showed that the children with the improper tongue posture had higher odds ratios for the presence of AOB (OR 14.63; p < 0.001) than the others. When articulation disorders were included in the model, these odds ratios for the AOB became insignificant (p = 0.177). There was a strong association between the improper tongue posture and articulation disorders (p = 0.002). The 3DUS detected the highest number of children with improper resting tongue posture, though there was no significant difference between the 3DUS and clinical assessments done by orthodontist and ENT specialist. Conclusions The 3DUS has proved to be an objective, non-invasive, radiation free method for the assessment of tongue posture and could become an important tool in functional diagnostics and early rehabilitation in preschool children with speech irregularities and irregular tongue posture and malocclusion in order to enable optimal conditions for articulation development.
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Fan, Xiaoyao, David W. Roberts, Songbai Ji, Alex Hartov, and Keith D. Paulsen. "Intraoperative fiducial-less patient registration using volumetric 3D ultrasound: a prospective series of 32 neurosurgical cases." Journal of Neurosurgery 123, no. 3 (September 2015): 721–31. http://dx.doi.org/10.3171/2014.12.jns141321.

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OBJECT Fiducial-based registration (FBR) is used widely for patient registration in image-guided neurosurgery. The authors of this study have developed an automatic fiducial-less registration (FLR) technique to find the patient-to-image transformation by directly registering 3D ultrasound (3DUS) with MR images without incorporating prior information. The purpose of the study was to evaluate the performance of the FLR technique when used prospectively in the operating room and to compare it with conventional FBR. METHODS In 32 surgical patients who underwent conventional FBR, preoperative T1-weighted MR images (pMR) with attached fiducial markers were acquired prior to surgery. After craniotomy but before dural opening, a set of 3DUS images of the brain volume was acquired. A 2-step registration process was executed immediately after image acquisition: 1) the cortical surfaces from pMR and 3DUS were segmented, and a multistart sum-of-squared-intensity-difference registration was executed to find an initial alignment between down-sampled binary pMR and 3DUS volumes; and 2) the alignment was further refined by a mutual information-based registration between full-resolution grayscale pMR and 3DUS images, and a patient-to-image transformation was subsequently extracted. RESULTS To assess the accuracy of the FLR technique, the following were quantified: 1) the fiducial distance error (FDE); and 2) the target registration error (TRE) at anterior commissure and posterior commissure locations; these were compared with conventional FBR. The results showed that although the average FDE (6.42 ± 2.05 mm) was higher than the fiducial registration error (FRE) from FBR (3.42 ± 1.37 mm), the overall TRE of FLR (2.51 ± 0.93 mm) was lower than that of FBR (5.48 ± 1.81 mm). The results agreed with the intent of the 2 registration techniques: FBR is designed to minimize the FRE, whereas FLR is designed to optimize feature alignment and hence minimize TRE. The overall computational cost of FLR was approximately 4–5 minutes and minimal user interaction was required. CONCLUSIONS Because the FLR method directly registers 3DUS with MR by matching internal image features, it proved to be more accurate than FBR in terms of TRE in the 32 patients evaluated in this study. The overall efficiency of FLR in terms of the time and personnel involved is also improved relative to FBR in the operating room, and the method does not require additional image scans immediately prior to surgery. The performance of FLR and these results suggest potential for broad clinical application.
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Hahn, Markus, Katja C. Siegmann, Christoph Meisner, Ann-Katrin Steinhoff, Valerie Hattermann, Tanja N. Fehm, Andreas D. Hartkopf, Markus Wallwiener, Ulrich Vogel, and Diethelm Wallwiener. "Accuracy of MRI, mammography (MG), and 2D and 3D ultrasound (2DUS/3DUS) in determining the pathologic tumor response after neoadjuvant chemotherapy (NACT) in breast cancer patients." Journal of Clinical Oncology 30, no. 15_suppl (May 20, 2012): 1067. http://dx.doi.org/10.1200/jco.2012.30.15_suppl.1067.

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1067 Background: The pathological tumor response in patients with locally advanced breast cancer to NACT is essential for survival and for surgical strategies. Therapy monitoring based on German recommendations is routinely performed by clinical examination, MG and 2DUS. The clinical value of MRI and 3DUS has not been established yet. The aim of the study was to determine the accuracy, sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) between the different imaging techniques in predicting postoperative histological tumor response after NACT. Methods: Patients with primary breast cancer (cT1-T4, cN0-1, M0) undergoing neoadjuvant chemotherapy between 2005 and 2010 were eligible for this prospective trial. The response was measured by MRI, MG, 2DUS and 3DUS for complete or partial remission versus stable disease after the last cycle of treatment and compared with the final pathological response. Patients with progressive disease were excluded from the study. Statistical analysis was done by calculating the accuracy of each imaging technique and the size difference between imaging and histological tumor size. Sensitivity, specificity, PPV and NPV were calculated for complete or partial pathological response. The study was approved by the local ethic committee (BCD001 194/2004). Results: 103 patients with the mean age of 47.7 (range 24.5 – 71.4) years were evaluated. The accuracy was 0.680 (95%CI: 0.580 -0.768) for MRI, 0.563 (95%CI: 0.453-0.669) for MG, 0.724 (95%CI: 0.618 -0.815) for 2DUS and 0.710 (95%CI: 0.588-0.813) for 3DUS. Sensitivity, specificity, PPV and NPV were 78%, 47%, 75% and 52% for MRI, 61%, 45%, 69% and 36% for MG, 93%, 23%, 74% and 60% for 2DUS, 94%, 19%, 73% and 57% for 3DUS. The mean (standard deviation) size difference was -1.8 mm (14.8) on MRI, 1.5 mm (26.0) on MG, -9.1mm (19.1) on 2DUS and for the volume difference -6916mm3 (15831) on 3DUS. Conclusions: The data suggest that 2DUS is sufficient in predicting tumor response between NACT treatment. MRI and MG are more accurate the 2DUS in predicting the tumor size for surgical planning.
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Araujo Júnior, Edward, Eduardo Felix Martins Santana, Liliam Cristine Rolo, Luciano Marcondes Machado Nardozza, and Antonio Fernandes Moron. "Prenatal Diagnosis of Congenital Syphilis Using Two- and Three-Dimensional Ultrasonography: Case Report." Case Reports in Infectious Diseases 2012 (2012): 1–3. http://dx.doi.org/10.1155/2012/478436.

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The numbers of syphilis cases have been increasing considerably, especially in eastern europe, thereby contributing towards greater chances of cases of congenital syphilis. Some of the complications of congenital syphilis can be detected on two-dimensional ultrasonography (2DUS), and these are generally manifested in the second trimester of pregnancy. The commonest ultrasonographic signs are hepatosplenomegaly, placentomegaly, and fetal growth restriction, while lower-frequency occurrences include intrahepatic calcifications, ascites, fetal hydrops, and even fetal death. Three-dimensional ultrasonography (3DUS) is a relatively new imaging technique that is adjuvant to 2DUS and enables detailed assessment of the fetal surface anatomy. We present a case of a 21-year-old primigravida with a diagnosis of congenital syphilis, with obstetric 2DUS findings of hepatosplenomegaly, ascites, pericardial effusion and hyperechogenicity of the cerebral parenchyma. 3DUS in rendering mode allowed clear assessment of the fetal limbs, especially the feet, which appeared twisted and lacked some toes. It allowed the parents to understand the pathological condition better and improved prenatal management and neonatal followup. 3DUS can be used routinely for assessing fetal malformations resulting from congenital infections.
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Šteňo, Andrej, Michaela Jezberová, Vladimír Hollý, Gabriela Timárová, and Juraj Šteňo. "Visualization of lenticulostriate arteries during insular low-grade glioma surgeries by navigated 3D ultrasound power Doppler: technical note." Journal of Neurosurgery 125, no. 4 (October 2016): 1016–23. http://dx.doi.org/10.3171/2015.10.jns151907.

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OBJECTIVE Resection of insular gliomas is challenging. In cases of intraoperative injury to the lenticulostriate arteries (LSAs), the usual result is a dense hemiplegia. LSAs are usually localized just behind the medial tumor border but they can also be encased by the tumor. Thus, exact localization of these perforators is important. However, intraoperative localization of LSAs using conventional neuronavigation can be difficult due to brain shift. In this paper, the authors present a novel method of intraoperative LSA visualization by navigated 3D ultrasound (3DUS) power Doppler. This technique enables almost real-time imaging of LSAs and evaluation of their shift during insular tumor resections. METHODS Six patients harboring insular Grade II gliomas were consecutively operated on at the Department of Neurosurgery in Bratislava using visualization of LSAs by navigated 3DUS power Doppler. In all cases, the 3DUS data were repeatedly updated to compensate for the brain shift and display the actual position of LSAs and residual tumor. RESULTS Successful visualization of LSAs was achieved in all cases. During all surgeries, the distance between the bottom of the resection cavity and LSAs could be accurately evaluated; in all tumors the resection approached the LSAs and only a minimal amount of tissue covering these perforators was intentionally left in place to avoid injury to them. CONCLUSIONS Visualization of LSAs by navigated 3DUS power Doppler is a useful tool that may help to prevent injury of LSAs during removal of insular low-grade gliomas. However, reliability of this method has to be carefully evaluated in further studies.
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Dissertations / Theses on the topic "3DUS"

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Бурячек, Т. О., and О. В. Вишневська. "Методи оптимізації моделей 3ds Max." Thesis, КНУТД, 2016. https://er.knutd.edu.ua/handle/123456789/4342.

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Andersson, Tommy, Mattis Torkelsson, and Gustav Wärlinge. "3DES, AES i hårdvara - Förmåga att skala i en växande miljö." Thesis, Linnaeus University, School of Computer Science, Physics and Mathematics, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-5783.

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Den här rapporten beskriver arbetet och utförda studier inom området kryptering och VPN. Fokus ligger på hur väl krypteringsalgoritmerna Triple Data Encryption Standard (3DES) och Advanced Encryption Standard (AES) skalar i en förutbestämd miljö. Huvudfokus har varit att svara på frågan: Vilken av krypteringsalgoritmerna AES och 3DES kräver minst systemresurser? Under utbildningstiden har det flera gånger framförts att 3DES-algoritmen skulle vara mer krävande för krypteringsenheterna att utföra jämfört med AES. Denna rapport söker finna om det är så det förhåller sig och i så fall hur stor skillnaden är mellan algoritmerna. För att söka svar på frågorna genomfördes ett flertal experiment. Dessa syftade till att påvisa eller vederlägga ovan beskrivna påståenden kring 3DES och AES. Resultatet av utförda experiment blev att ingen större skillnad kunde noteras mellan 3DES och AES. Detta står i stark kontrast till de påståenden som ofta florerar kring krypteringsalgoritmerna 3DES och AES


This report describes the work and studies carried out in the field of encryption and VPN. The focus is on how well the encryption algorithms Triple Data Encryption Standard (3DES) and Advanced Encryption Standard (AES) perform in a predetermined environment. The main focus has been to answer the question: Which of the encryption algorithms AES and 3DES requires less system resources. During the period  of studies, lectures and literature have several times claimed the 3DES algorithm to require more resources of encryption devices, compared to AES. This report tries to find if it is a fact and if so how big is the difference between the algorithms. To seek  answers to the questions, a number of experiments was performed. These experiments were intended to demonstrate or refute the above claims about 3DES and AES. The results of the performed experiments shows no major differences between 3DES and AES. This differs from what have been publicly accepted concerning facts regarding encryption algorithms 3DES and AES.

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Barber, Cody. "The Virtual Steamroller: How CGI Paved the Way for 3D's Comeback." Ohio University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1323194803.

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Fischer, Leonardo Garcia. "3DS-BVP : a path planner for arbitrary surfaces." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/49751.

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Métodos eficientes para planejamento de caminhos têm sido explorados ao longo dos anos para permitir movimento de robôs autônomos ou agentes virtuais. Basicamente, estes algoritmos buscam pelo ambiente por um caminho com pouca probabilidade de colisão com obstáculos, e que conduza o agente de uma posição inicial para uma posição objetivo. Apesar de os primeiros algoritmos para planejamento de caminhos para calcular rotas em grafos foram apresentados a mais de 50 anos atrás, ainda existe muito trabalho sendo realizado para melhorar as técnicas existentes hoje em dia. Os algoritmos de planejamento de caminhos atuais normalmente assumem que o ambiente pode ser facilmente projetado em um plano. Também existem diversos algoritmos que podem trabalhar facilmente com mais dimensões. Porém, uma classe de ambientes que não podem ser facilmente tratadas pelos algoritmos atuais é composta por superfícies arbitrárias. Estas superfícies, com buracos e torções, por exemplo, não podem ser facilmente projetadas em um plano. O fato de o caminho ser restrito à superfície faz com que, em um dado ponto o algoritmo precise calcular um caminho 2D em uma superfície 3D, o que não é trivial de mapear em um algoritmo de planejamento de caminhos para várias dimensões. Este trabalho apresenta uma nova técnica de planejamento de caminhos em superfícies 3D, chamada 3DS-BVP. Este novo planejador de caminhos é baseado em um algoritmo de planejamento de caminhos para ambientes 2D. O algoritmo anterior, chamado BVPPath- Planner, utiliza problemas de valor de contorno (Boundary Value Problems, BVP) e funções harmônicas para gerar campos potenciais. Ao seguir o gradiente descente destes campos potenciais, é possível produzir caminhos suaves livres de mínimos locais, partindo de qualquer posição do ambiente para um dado objetivo. Nosso algoritmo gera um campo potencial diretamente na superfície 3D utilizando um método numérico que foi inspirado por aquele utilizado no BVP-Path-Planner. O 3DS-BVP trabalha sobre superfícies complexas com buracos ou curvaturas, representadas por malhas de triângulos, sem a necessidade de parametrizar a superfície em uma representação 2D. Nossos resultados demonstram que a técnica pode gerar caminhos com qualidade similar àqueles gerados pelo BVP-Path-Planner em ambientes planos. O mesmo algoritmo é capaz de gerar caminhos em superfícies arbitrárias a taxas de atualização interativas.
Efficient path planning methods are being explored along the years to allow the movement of autonomous robots or virtual agents. Basically these algorithms search the environment for a path with low probability of collision with obstacles that conduces the agent from an initial to a goal position. Although the first path planning algorithms to compute routes in graphs were presented more than 50 years ago, there is still a lot of effort into improving the current approaches. The current path planning algorithms usually assume that the environment can be easily projected on a plane. There are also other algorithms that can easily deal with higher dimensional spaces. But a class of environments that cannot be easily treated by current algorithms is the one composed by arbitrary surfaces. These surfaces, with holes and bends for instance, cannot be directly projected on a plane. Because the path must be on the surface, it has only 2 degrees of freedom in any point of the surface, which is not trivial to map for a higher dimensional path planning algorithm. This work presents a new technique for path planning on 3D surfaces called 3DS-BVP. This new path planner is based on a previous path planning algorithm for 2D environments. The former algorithm, called BVP-Path-Planner, uses Boundary Value Problems (BVP) and harmonic functions to generate potential fields. By following the gradient descent of these potential fields, it is possible to produce smooth paths free from local minima from any point of the environment to a given goal position. Our algorithm generates a potential field directly on the 3D surface using a numerical method inspired on the one used by the BVP-Path-Planner. The 3DS-BVP works over complex surfaces of arbitrary genus or curvature, represented by a triangle mesh, without the need of 2D parametrizations. Our results demonstrate that our technique can generate paths with similar quality as those generated by the BVP-Path-Planner in planar environments. The same algorithm is also able to generate paths in arbitrary surfaces at interactive frame rates.
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Nilsson, Linus. "Plug-in for stereoscopic studio production using 3Ds Max." Thesis, University of Gävle, Department of Industrial Development, IT and Land Management, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-7357.

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In this day and age when 3D cinema is ever increasing in popularity and 3D television sets on the verge of becoming a reality in our homes, the media production companies are interested in looking at how they can start producing stereoscopic format media for this exciting medium. This thesis proposes a solution to parts of the stereoscopic production pipeline by examining and proposing the extent of the requirements of a plug-in to aid in the setting up and rendering of stereo pairs and ultimately proposing such a plug-in and modifying it to suit the proposed requirements. With a high emphasis on ensuring that the plug-in is capable of producing enjoyable stereoscopic content, the plug-in is tested by rendering a demanding scene previously used in factual production work. The findings of these tests ultimately lead to the evaluation of the plug-ins usefulness as a tool for not only the production studio involved but for anyone interested in generating material for this exciting medium.

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Ekman, Viktor, and Jesper Moen. "Exteriör och interiör visualisering av ett bostadshus i 3ds max." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-108867.

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Denna rapport beskriver och drar jämförelser mellan olika visualiseringstekniker i 3D Studio Max och Adobe Photoshop CS3. Syftet med studien är att undersöka olika visualiserings- och renderingstekniker för att se vilka tekniker som ger ett smidigast och mest verklighetstroget resultat utifrån olika förutsättningar. Studien grundar sig på en huvudfråga och två stycken underfrågor. Hur skapar man ett effektivt och verklighetstroget visualiseringsresultat av ett bostadskvarter för intressenter? • Vilka fördelar och nackdelar finns det med olika visualiseringstekniker? • Vilka metoder ger ett verklighetstroget visualiseringsresultat vid interiör respektive exteriör visualisering? Slutsatsen med studien är att varje situation är unik och att det finns fördelar och nackdelar med varje teknik och metod i de olika programmen. För att nå ett önskat slutresultat så gäller det att lära sig hur varje metod fungerar och sedan anpassa den utifrån varje enskild situation.
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Вишневська, О. В. "Особливості створення реалістичних візуалізацій тривимірних сцен у програмі 3ds MAX." Thesis, Київський національний університет технологій та дизайну, 2018. https://er.knutd.edu.ua/handle/123456789/10762.

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Наведено результати досліджень щодо візуалізації тривимірних сцен, створених програмою 3ds Max. Окреслено складові елементи процесу рендеру візуалізатора VRay. Розроблено оптимальну послідовність налаштувань параметрів візуалізатора та оптимізацію процесу рендеру.
The results of three-dimensional scenes visualization created by the 3ds Max program are presented. The components of VRay render in renderering are shawn. The optimal sequence of settings for parameters of the visualizer and optimization of rendering are developed.
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Дуванов, С. С. "Комплекс інтерактивних тренажерів для вивчення технологій анімації в 3ds Max." Master's thesis, Сумський державний університет, 2021. https://essuir.sumdu.edu.ua/handle/123456789/86877.

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Дипломний проєкт присвячено розробці серії інтерактивних веб-тренажерів для вивчення основ створення анімації в програмі 3Ds Max. В роботі проведено аналіз предметної області та існуючих аналогів, розглянуто їх недоліки та переваги. Обрано засоби та технології реалізації проєкту. Виконано моделювання роботи серії веб-тренажерів з використанням методологій IDEF0 та UML, проведено планування робіт. Розроблено дизайн інтерфейсів, створено теоретичні блоки та блоки із завданнями для кожного веб-тренажера із серії. Результатом виконання проєкту є розроблена серія веб-тренажерів для вивчення основ створення тривимірної анімації в програмі 3ds Max для дистанційного курсу дисципліни "Технології анімації та візуалізації" університету СумДУ за темами: "Кінематика пов'язаних об'єктів", "Анімація об'єктів Bones", "Анімація за ключовими кадрами".
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Itoh, Daiki. "Force Haptic Interaction for Room-Scale 3D Painting." Research Showcase @ CMU, 2018. http://repository.cmu.edu/theses/134.

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Artistic painting involves mastery of haptic interaction with tools. Each tool brings unique physical affordances which determines an aesthetic expression of the finished work. For instance, a pen offers an ability to make a precise stroke in a realism painting, whereas a thick brush or a sponge works perfectly with dynamic arm movement in the abstract art such as action painting. Yet the selection of a tool is just a beginning. It requires repetitive training to understand the full capability of the tool affordance and to master the painting of preferred aesthetic strokes. Such physical act of an artistic expression cannot be captured by the computational tools today. Due to the increasing market adoption of augmented reality and virtual reality, and the decades of studies in haptics, we see an opportunity for advancing 3D painting experiences in non-conventional approach. In this research, we focus on force haptic interaction for 3D painting art in a room-scale virtual reality. We explore virtual tangibility and tool affordance of its own medium. In addition to investigating the fidelity of a physical interactivity, we seek ways to extend the painting capabilities by computationally customized force feedback and metaphor design. This system consists of a wearable force feedback device that sits on user’s hand, a software for motor control and real-time 3D stroke generation, and their integration to VR platform. We work closely with an artist to refine the 3D painting application and to evaluate the system’s usability.
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Борщова, С. П., and К. В. Донець. "Можливості застосування плагіну Populate: Terrain для моделювання ландшафтних сцен в 3DS Max." Thesis, КНУТД, 2016. https://er.knutd.edu.ua/handle/123456789/4351.

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Books on the topic "3DUS"

1

Бордман, Т. 3ds max 5. Санкт-Петербург: Питер, 2003.

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Boughen, Nicholas. 3ds Max lighting. Plano, Tex: Wordware Pub., 2005.

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Boardman, Ted. 3ds max 6. Paris: CampusPress, 2004.

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Murdock and Murdock Kelly, eds. 3Ds Max 2010. Hoboken: Wiley [Imprint], 2009.

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Essential 3ds max 2008. Plano, Tex: Wordware Pub., 2008.

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Yeon, James. 3ds max 9 accelerated. Seoul, Korea: YoungJin.com, 2008.

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3ds max 4 Workshop. Upper Saddle River: Pearson Education, 2003.

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Verstak, Vladimir. Videosamouchitel 3ds max 2008. [S.l.]: Book On Demand Ltd, 2013.

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Inside 3ds max 4. Indianapolis, Ind: New Riders, 2002.

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Inc, ebrary, ed. 3ds max 2011 bible. New York, NY: Wiley Publishing, 2010.

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Book chapters on the topic "3DUS"

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Oguz, Baris U., Jiancong Wang, Natalie Yushkevich, Alison Pouch, James Gee, Paul A. Yushkevich, Nadav Schwartz, and Ipek Oguz. "Combining Deep Learning and Multi-atlas Label Fusion for Automated Placenta Segmentation from 3DUS." In Data Driven Treatment Response Assessment and Preterm, Perinatal, and Paediatric Image Analysis, 138–48. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-00807-9_14.

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Shams, Roozbeh, Marc-Antoine Boucher, and Samuel Kadoury. "Intra-operative Brain Shift Correction with Weighted Locally Linear Correlations of 3DUS and MRI." In Simulation, Image Processing, and Ultrasound Systems for Assisted Diagnosis and Navigation, 179–84. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01045-4_22.

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Ren, Fang, Leihua Chen, and Tao Zhang. "3DES Implementation Based on FPGA." In Communications in Computer and Information Science, 218–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-24273-1_29.

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Kulshreshth, Arun K., and Joseph J. LaViola. "Simultaneous Usage of Several 3DUI Technologies." In Designing Immersive Video Games Using 3DUI Technologies, 83–103. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-77953-9_6.

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Nachef, Valerie, Jacques Patarin, and Emmanuel Volte. "DES and Variants: 3DES, DES – X." In Feistel Ciphers, 157–76. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49530-9_11.

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Pépin, Florent, and Maria Grazia Vigliotti. "Risk Assessment of the 3Des in ERTMS." In Reliability, Safety, and Security of Railway Systems. Modelling, Analysis, Verification, and Certification, 79–92. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-33951-1_6.

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Uribe-Quevedo, Alvaro, Sergio Valdivia-Trujillo, Eliana Prada-Dominguez, and Byron Perez-Gutierrrez. "Lower Member Game for Exercising Using Affordable 3DUIs." In HCI International 2014 - Posters’ Extended Abstracts, 376–80. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-07854-0_66.

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Zhao, Qiwang, and Shaochi Pan. "Application of 3ds Max Technology in Archaeology." In Advances in Intelligent Systems and Computing, 10–16. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-62746-1_2.

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Tibamoso, Gerardo, Sergio Medina-Papagayo, Lizeth Vega-Medina, Byron Perez-Gutierrez, and Alvaro Uribe-Quevedo. "3DUI Electronic Syringe for Neonate Central Venous Access Procedure Simulation." In Lecture Notes in Computer Science, 565–73. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39907-2_54.

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Read, Huw, Elizabeth Thomas, Iain Sutherland, Konstantinos Xynos, and Mikhaila Burgess. "A Forensic Methodology for Analyzing Nintendo 3DS Devices." In IFIP Advances in Information and Communication Technology, 127–43. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-46279-0_7.

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Conference papers on the topic "3DUS"

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Friedman, Roy, and Noam Mori. "3DLS." In the tenth ACM international symposium. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1530748.1530791.

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Guo, Rongkai, Ryan P. McMahan, and Benjamin Weyers. "3DUI-League: 9th Annual 3DUI Contest." In 2018 IEEE Conference on Virtual Reality and 3D User Interfaces (VR). IEEE, 2018. http://dx.doi.org/10.1109/vr.2018.8446389.

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Zhou, Ding, Jiabei Jiang, and Yuqing Zou. "Systemic Design Method for Co-creation of 3D Printing Service." In Systems & Design: Beyond Processes and Thinking. Valencia: Universitat Politècnica València, 2016. http://dx.doi.org/10.4995/ifdp.2016.3144.

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Background- As one of the objectives of Design for Additive Manufacture, the capability of customized geometry promotes 3D printing to increasingly realize product customization in the service market. Defined as a business strategy focusing on customer experience and interaction, co-creation is expected to obtain fast-growing market volume. Recently, some co-creation of 3D printing service (3DPS) have been released to realize value creation. Despite its rapid growth, there is little research on this field, especially its design method. Aim- This research aims to define a systemic design method for developing the co-creation of 3DPS. Method- First, this research distinguished ambiguous-type and definite-type of 3DPS co-creation. The latter was taken as the current research object, because it presents the services scope more clearly. Furthermore, in order to solve the research question, that is, how to organize the service innovation for 3DPS co-creation, evidence needed to be collected by observing the mentioned cases. Therefore, holistic multiple-case study of 3DPS co-creation samples was designed and conducted, as it was herein employed as the research method. This research is divided into three sections. The first section presents the preparation for data collection, involving case selection and the formulation of evidence collection. The second section analyzes the collected evidences. Based on the evidence analysis, the third section concludes the knowledge of 3DPS co-creation. In order to collect adequate evidences, a pair of models was employed to build a framework. The first one is the Den Hertog's service innovation model, which presents four dimensions including new service concept, new client interface, new service delivery system, and technological options. Another model refers to the building blocks of interactions for value co-creation: dialogue, access, risk-benefits, and transparency, presenting the components in basis construction, which are necessary for the interaction between consumer and service provider. Finding- The findings conclude a systemic design method for 3DPS co-creation, which is divided into the following steps: embedding 3DPS co-creation in current product customization, developing a WebGL-based interface for service processes, preparing 3D printing technology for customized results, evaluating and optimizing the co-creation structure according to the standard including clear dialogues, complete customization access, reasonable understanding of risk-benefits, and ideal transparency.Conclusion- This research proposes a systemic design method for co-creation of 3DPS, which promises benefits to enterprises engaged in the 3D printing service, and will contribute to promoting co-creation in the context of service design and other related fields.DOI: http://dx.doi.org/10.4995/IFDP.2016.3144
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Varcholik, Paul D., Joseph J. LaViola, and Charles Hughes. "The Bespoke 3DUI XNA Framework." In the 2009 ACM SIGGRAPH Symposium. New York, New York, USA: ACM Press, 2009. http://dx.doi.org/10.1145/1581073.1581082.

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Figueroa, Pablo, Sebastien Kuntz, and Yoshifumi Kitamura. "The first 3DUI Grand Prize." In 2010 IEEE Symposium on 3D User Interfaces (3DUI 2010). IEEE, 2010. http://dx.doi.org/10.1109/3dui.2010.5444730.

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Guo, Rongkai, Michael Marner, and Benjamin Weyers. "3DUIdol - 6th annual 3DUI contest." In 2015 IEEE Symposium on 3D User Interfaces (3DUI). IEEE, 2015. http://dx.doi.org/10.1109/3dui.2015.7131768.

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Hirt, Christian, Anh Nguyen, and Markus Zank. "3DUI Contest 2018 - Team NaN." In 2018 IEEE Conference on Virtual Reality and 3D User Interfaces (VR). IEEE, 2018. http://dx.doi.org/10.1109/vr.2018.8446051.

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Sun, Bo, Aleksandr Fritz, Vincent Perry, Paul Havig, and Simon Su. "3DUI Contest 2018: 3D Interaction." In 2018 IEEE Conference on Virtual Reality and 3D User Interfaces (VR). IEEE, 2018. http://dx.doi.org/10.1109/vr.2018.8446176.

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Mostafa, Ahmed E., Ehud Sharlin, and Mario Costa Sousa. "Poster: Superhumans: A 3DUI design metaphor." In 2014 IEEE Symposium on 3D User Interfaces (3DUI). IEEE, 2014. http://dx.doi.org/10.1109/3dui.2014.6798861.

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Kruijff, Ernst. "3DUI design inspired by assistive technology." In 2014 2nd Workshop on Virtual and Augmented Assistive Technology (VAAT). IEEE, 2014. http://dx.doi.org/10.1109/vaat.2014.6799459.

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Reports on the topic "3DUS"

1

Kaduk, B., and M. Short. Deprecate Triple-DES (3DES) and RC4 in Kerberos. RFC Editor, October 2018. http://dx.doi.org/10.17487/rfc8429.

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Smith, Jeanne, Isiah Davenport, and Huaining Cheng. Simulated Lidar Images of Human Pose using a 3DS Max Virtual Laboratory. Fort Belvoir, VA: Defense Technical Information Center, December 2015. http://dx.doi.org/10.21236/ada626763.

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Kiv, Arnold E., Vladyslav V. Bilous, Dmytro M. Bodnenko, Dmytro V. Horbatovskyi, Oksana S. Lytvyn, and Volodymyr V. Proshkin. The development and use of mobile app AR Physics in physics teaching at the university. [б. в.], July 2021. http://dx.doi.org/10.31812/123456789/4629.

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This paper outlines the importance of using Augmented Reality (AR) in physics education at the university as a valuable tool for visualization and increasing the attention and motivation of students to study, solving educational problems related to future professional activities, improving the interaction of teachers and students. Provided an analysis of the types of AR technology and software for developing AR apps. The sequences of actions for developing the mobile application AR Physics in the study of topics: “Direct electronic current”, “Fundamentals of the theory of electronic circuits”. The software tools for mobile application development (Android Studio, SDK, NDK, Google Sceneform, 3Ds MAX, Core Animation, Asset Media Recorder, Ashampoo Music Studio, Google Translate Plugin) are described. The bank of 3D models of elements of electrical circuits (sources of current, consumers, measuring devices, conductors) is created. Because of the students’ and teachers’ surveys, the advantages and disadvantages of using AR in the teaching process are discussed. Mann-Whitney U-test proved the effectiveness of the use of AR for laboratory works in physics by students majoring in “Mathematics”, “Computer Science”, and “Cybersecurity”.
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Cherniavskyi, Ruslan, Yaroslav Krainyk, and Anzhela Boiko. Modeling university environment: means and applications for university education. [б. в.], February 2020. http://dx.doi.org/10.31812/123456789/3742.

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In the paper, we establish an investigation on the development of university 3D-model and its possible applications for educational and research fields. We assume that 3D-model of university can help in various scenarios and should be used to adopt modern immersing technologies into to university processes. Different means are employed for the development of the model. Bottom-up approach for using these means and their connection with each other are shown in the work. Then, details of the 3D-model design process are provided with peculiarities related to the university building location and corpuses positions. Finally, assembled models of university are shown in 3ds Max and Unity environments. In the final part of the paper, we suggest scenarios of model usage for educational and research fields. Universities can gain various benefits from integrating their research efforts to employ new technology and identify new development opportunities for both science and education in university. In case of the developed 3D-model, it is planned to use it in the projects connected with client-server applications, Internet-of-Things, Smart Grid, etc. In the educational process it will be a part of case-studies for learning 3D-modeling, development in Unity environment, training for emergency situations.
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Furman, Burford, Laxmi Ramasubramanian, Shannon McDonald, Ron Swenson, Jack Fogelquist, Yu Chiao, Alex Pape, and Mario Cruz. Solar-Powered Automated Transportation: Feasibility and Visualization. Mineta Transportation Institute, December 2021. http://dx.doi.org/10.31979/mti.2021.1948.

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A solar-powered automated transportation network (ATN) connecting the North and South campuses of San José State University with three passenger stations was designed, visualized, and analyzed in terms of its energy usage, carbon offset, and cost. The study’s methodology included the use of tools and software such as ArcGIS, SketchUp, Infraworks, Sketchup, Rhinoceros, and Autodesk 3DS Max. ATN vehicle energy usage was estimated using data from the university’s Park & Ride shuttle bus operation and by modeling with SUMOPy, the advanced simulation suite for the micro-traffic simulator SUMO. The energy study showed that an extensive solar photovoltaic (PV) canopy over the guideway and stations is sufficient for the network to run 24/7 in better-than-zero net-metered conditions—even if ridership were to increase 15% above that predicted from SJSU Park & Ride shuttle data. The resulting energy system has a PV-rated output of 6.2 MW, a battery system capacity of 9.8 MWh, and an estimated cost of $11.4 million USD. The solar ATN also produces 98% lower CO2 and PM2.5 emissions compared to the Park & Ride shuttle bus. A team of experts including urban planners, architects, and engineers designed and visualized the conceptual prototype, including a comprehensive video explaining the need for solar ATN and what a typical rider would experience while utilizing the system. This research demonstrates both benefits and challenges for solar-powered ATN, as well as its functionality within the urban built environment to serve diverse San José neighborhoods.
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