Articoli di riviste: "3d ed"

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YONEKURA, Koji. "Electron 3D Crystallography/3D ED/MicroED". Nihon Kessho Gakkaishi 63, n. 3 (31 agosto 2021): 189–96. http://dx.doi.org/10.5940/jcrsj.63.189.

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Gemmi, M., I. Andrusenko, D. Marchetti, A. Latini e M. Arciniegas. "3D ED of hybrid perovskites". Acta Crystallographica Section A Foundations and Advances 78, a2 (23 agosto 2022): a445. http://dx.doi.org/10.1107/s2053273322092968.

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Garcia-Pérez, Dolors, Anabelén Vena-Martínez, Laura Robles-Perea, Teresa Roselló-Padullés, Joan Espaulella-Panicot e Anna Arnau. "Prognostic Value of a New Tool (the 3D/3D+) for Predicting 30-Day Mortality in Emergency Department Patients Aged 75 Years and Older". Journal of Clinical Medicine 12, n. 20 (11 ottobre 2023): 6469. http://dx.doi.org/10.3390/jcm12206469.

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The 3D/3D+ multidimensional geriatric assessment tool provides an optimal model of emergency care for patients aged 75 and over who attend the Emergency Department (ED). The baseline, or static, component (3D) stratifies the degree of frailty prior to the acute illness, while the current, or dynamic, component (3D+) assesses the multidimensional impact caused by the acute illness and helps to guide the choice of care facility for patients upon their discharge from the ED. The objective of this study was to evaluate the prognostic value of the 3D/3D+ to predict short- and long-term adverse outcomes in ED patients aged 75 years and older. Multivariable logistic regression models were used to identify the predictors of mortality 30 days after 3D/3D+ assessment. Two hundred and seventy-eight patients (59.7% women) with a median age of 86 years (interquartile range: 83–90) were analyzed. According to the baseline component (3D), 83.1% (95% CI: 78.2–87.3) presented some degree of frailty. The current component (3D+) presented alterations in 60.1% (95% CI: 54.1–65.9). The choice of care facility at ED discharge indicated by the 3D/3D+ was considered appropriate in 96.4% (95% CI: 93.0–98.0). Thirty-day all-cause mortality was 19.4%. Delirium and functional decline were the dimensions on the 3D/3D+ that were independently associated with 30-day mortality. These two dimensions had an area under receiver operating characteristic of 0.80 (95% CI: 0.73–0.86) for predicting 30-day mortality. The 3D/3D+ tool enhances the provision of comprehensive care by ED professionals, guides them in the choice of patients’ discharge destination, and has a prognostic validity that serves to establish future therapeutic objectives.

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Pacoste, Laura C., Viktor E. G. Bengtsson, José Miguel de la Rosa-Trevín, Gerhard Hofer, Hongyi Xu e Xiaodong Zou. "Utilizing Scipion-ED for 3D-ED data processing". Acta Crystallographica Section A Foundations and Advances 77, a2 (14 agosto 2021): C1279. http://dx.doi.org/10.1107/s0108767321084361.

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Jha, Kunal Kumar, Barbara Gruza, Michał Leszek Chodkiewicz, Christian Jelsch e Paulina Maria Dominiak. "Refinements on electron diffraction data of β-glycine in MoPro: a quest for an improved structure model". Journal of Applied Crystallography 54, n. 4 (7 luglio 2021): 1234–43. http://dx.doi.org/10.1107/s160057672100580x.

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The advancement in 3D electron diffraction (3D ED) techniques that lead to a revolution in molecular structure determination using nano-sized crystals is now achieving atomic resolution. The structures can be obtained from 3D ED data with tools similar to those used for X-ray structure determination. In this context, the MoPro software, originally designed for structure and charge density refinements using X-ray diffraction data, has been adapted. Structure refinement on 3D ED data was achieved via implementation of electron scattering factors available in the literature and by application of the Mott–Bethe equation to X-ray scattering factors computed from the multipolar atom model. The multipolar model was parametrized using the transferable pseudoatom databanks ELMAM2 and UBDB. Applying the independent atom model (IAM), i.e. spherical neutral atom refinement, to 3D ED data on β-glycine in MoPro resulted in structure and refinement statistics comparable to those obtained from other well known software. Use of the transferred aspherical atom model (TAAM) led to improvement of the refinement statistics and a better fit of the model to the 3D ED data as compared with the spherical atom refinement. The anisotropic displacement parameters of non-H atoms appear underestimated by typically 0.003 Å2 for the non-H atoms in IAM refinement compared with TAAM. Thus, MoPro is shown to be an effective tool for crystal structure refinement on 3D ED data and allows use of a spherical or a multipolar atom model. Electron density databases can be readily transferred with no further modification needed when the Mott–Bethe equation is applied.

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Holleran, Renee. "3D Managing Chronic Pain the ED". Pain Management Nursing 21, n. 2 (aprile 2020): 211. http://dx.doi.org/10.1016/j.pmn.2020.02.025.

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Martin, David S. "Abrams Angiography.3d ed. 3 vols". Radiology 160, n. 3 (settembre 1986): 736. http://dx.doi.org/10.1148/radiology.160.3.736.

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Chen, James T. T. "Cardiac Catheterization and Angiography.3d ed". Radiology 162, n. 2 (febbraio 1987): 480. http://dx.doi.org/10.1148/radiology.162.2.480.

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Mettler, Fred A. "Radiobiology for the Radiologist.3d ed". Radiology 170, n. 2 (febbraio 1989): 422. http://dx.doi.org/10.1148/radiology.170.2.422.

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Boullay, P., S. Passuti, A. David e E. Rauch. "3D ED on epitaxial thin films". Acta Crystallographica Section A Foundations and Advances 78, a2 (23 agosto 2022): a156. http://dx.doi.org/10.1107/s2053273322095390.

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Mir, Anita. "A History of Islamic Philosophy, 3d ed." American Journal of Islam and Society 23, n. 4 (1 ottobre 2006): 131–33. http://dx.doi.org/10.35632/ajis.v23i4.1592.

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That Majid Fakhry’s A History of Islamic Philosophy, first published in1970, has been brought out in a third revised edition can be of no surprise tothe many admirers of this most robust of scholars. Fakhry’s scholarship ismeticulous, and his style, even when handling the most complex ideas,remains simple and straightforward.As many of the theological questions raised by Islam’s key philosophers,particularly those pertaining to free will, justice, rights, and responsibilities,had political implications, each chapter in this book begins with ahistorical context. However, Fakhry only allows this context to play a subsidiaryrole, as a backdrop to the main narrative: the history of ideas. Thisapproach lends itself very well to an examination of the ideas held by bothindividual philosophers and schools of philosophy. Importantly, Fakhrydemonstrates how, during several key Islamic epochs, there was no onedominant system of thought, but rather, contending systems of thought. Hetakes us through these debates step by step, as in, for example, the first theologicalcontroversy on free will and predestination (qadar). It is in the presentationof these debates, more than anywhere else, that we see that while AHistory of Islamic Philosophy is distinguished from the work of many othergrand narrative histories by not being marred by a partisan viewpoint,Fakhry’s is by no means a clinically scientific approach.This book comprises thirteen chapters. It begins with “The Legacy ofGreece, Alexandria, and the Orient,” covers the watershed periods in the ...

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Grad, Frank P., e Ross D. Silverman. "The Public Health Law Manual, 3d ed." Journal of Legal Medicine 26, n. 2 (giugno 2005): 293–301. http://dx.doi.org/10.1080/01947640590953332.

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Burgess-Jackson, Keith. "The Elements of Moral Philosophy, 3d ed." Teaching Philosophy 23, n. 2 (2000): 192–201. http://dx.doi.org/10.5840/teachphil200023224.

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Bilsker, Richard L. "Ten Theories of Human Nature (3d ed.)". Teaching Philosophy 24, n. 2 (2001): 191–96. http://dx.doi.org/10.5840/teachphil200124231.

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Cuttino, John T. "Diagnostic Imaging in Clinical Medicine.3d ed". Radiology 158, n. 3 (marzo 1986): 778. http://dx.doi.org/10.1148/radiology.158.3.778.

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Virtama, Pekka. "The Radiology of Joint Disease.3d ed". Radiology 165, n. 2 (novembre 1987): 350. http://dx.doi.org/10.1148/radiology.165.2.350.

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Gemmi, Mauro. "3D ED/MicroED entering a new era". Acta Crystallographica Section C Structural Chemistry 80, n. 6 (31 maggio 2024): 177–78. http://dx.doi.org/10.1107/s205322962400490x.

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Luo, Ting, Li Li, Shanqin Zhang, Shenxian Wang e Wei Gu. "A Novel Reversible Data Hiding Method for 3D Model in Homomorphic Encryption Domain". Symmetry 13, n. 6 (19 giugno 2021): 1090. http://dx.doi.org/10.3390/sym13061090.

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Reversible data hiding in the encrypted domain (RDH-ED) is a technique that protects the privacy of multimedia in the cloud service. In order to manage three-dimensional (3D) models, a novel RDH-ED based on prediction error expansion (PEE) is proposed. First, the homomorphic Paillier cryptosystem is utilized to encrypt the 3D model for transmission to the cloud. In the data hiding, a greedy algorithm is employed to classify vertices of 3D models into reference and embedded sets in order to increase the embedding capacity. The prediction value of the embedded vertex is computed by using the reference vertex, and then the module length of the prediction error is expanded to embed data. In the receiving side, the data extraction is symmetric to the data embedding, and the range of the module length is compared to extract the secret data. Meanwhile, the original 3D model can be recovered with the help of the reference vertex. The experimental results show that the proposed method can achieve greater embedding capacity compared with the existing RDH-ED methods.

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Martin, David S. "Noninvasive Diagnostic Techniques in Vascular Disease. 3d ed". Radiology 158, n. 1 (gennaio 1986): 198. http://dx.doi.org/10.1148/radiology.158.1.198.

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Zelovitzky, J. L. "Basic Imaging in Congenital Heart Disease.3d ed". Radiology 163, n. 3 (giugno 1987): 696. http://dx.doi.org/10.1148/radiology.163.3.696.

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Watson, Sharon L. "Basic Anatomy and Physiology for Radiographers.3d ed". Radiology 170, n. 1 (gennaio 1989): 154. http://dx.doi.org/10.1148/radiology.170.1.154.

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Yang, Taimin, Hongyi Xu e Xiaodong Zou. "Improving data quality for 3D electron diffraction (3D-ED) by Gatan Image Filter". Acta Crystallographica Section A Foundations and Advances 77, a2 (14 agosto 2021): C160—C161. http://dx.doi.org/10.1107/s0108767321095210.

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Lin, Xiuchun, Yichao Liu, Chen Feng, Zhide Chen, Xu Yang e Hui Cui. "Automatic Evaluation Method for Functional Movement Screening Based on Multi-Scale Lightweight 3D Convolution and an Encoder–Decoder". Electronics 13, n. 10 (7 maggio 2024): 1813. http://dx.doi.org/10.3390/electronics13101813.

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Functional Movement Screening (FMS) is a test used to evaluate fundamental movement patterns in the human body and identify functional limitations. However, the challenge of carrying out an automated assessment of FMS is that complex human movements are difficult to model accurately and efficiently. To address this challenge, this paper proposes an automatic evaluation method for FMS based on a multi-scale lightweight 3D convolution encoder–decoder (ML3D-ED) architecture. This method adopts a self-built multi-scale lightweight 3D convolution architecture to extract features from videos. The extracted features are then processed using an encoder–decoder architecture and probabilistic integration technique to effectively predict the final score distribution. This architecture, compared with the traditional Two-Stream Inflated 3D ConvNet (I3D) network, offers a better performance and accuracy in capturing advanced human movement features in temporal and spatial dimensions. Specifically, the ML3D-ED backbone network reduces the number of parameters by 59.5% and the computational cost by 77.7% when compared to I3D. Experiments have shown that ML3D-ED achieves an accuracy of 93.33% on public datasets, demonstrating an improvement of approximately 9% over the best existing method. This outcome demonstrates the effectiveness of and advancements made by the ML3D-ED architecture and probabilistic integration technique in extracting advanced human movement features and evaluating functional movements.

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Hussain, Kashif, Umer Younis, Imran Muhammad, Yu Qie, Yaguang Guo, Tingwei Li, Huanhuan Xie e Qiang Sun. "Three-dimensional porous borocarbonitride BC2N with negative Poisson's ratio". Journal of Materials Chemistry C 8, n. 44 (2020): 15771–77. http://dx.doi.org/10.1039/d0tc03832f.

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Motivated by the recent synthesis of three-dimensional (3D) porous borocarbonitride (Angew. Chem., Int. Ed., 2019, 58, 6033–6037), we propose a porous 3D-BC₂N structure composed of BC₂N nanoribbons.

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Mei, Kaili, Kejia Zhang, Jungu Xu e Zhengyang Zhou. "The Application of 3D-ED to Distinguish the Superstructure of Sr1.2Ca0.8Nb2O7 Ignored in SC-XRD". Crystals 13, n. 6 (8 giugno 2023): 924. http://dx.doi.org/10.3390/cryst13060924.

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Compared to X-rays, electrons have stronger interactions with matter. In electron diffraction, the low-order structure factors are sensitive to subtle changes in the arrangement of valence electrons around atoms when the scattering vector is smaller than the critical scattering vector. Therefore, electron diffraction is more advantageous for studying the distribution of atoms in the structure with atomic numbers smaller than that of sulfur. In this work, the crystal structure of Sr1.2Ca0.8Nb2O7 (SCNO-0.8) was analyzed using single-crystal X-ray diffraction (SC-XRD) and three-dimensional electron diffraction (3D-ED) techniques, respectively. Interestingly, the superstructure could only be identified by the 3D-ED technique, while no signal corresponding to the superstructure was detected from the SC-XRD data. The superstructure in SCNO-0.8 was disclosed to be caused by different tilting of NbO6 octahedra and the displacements of Sr/Ca atoms in the different atomic layers perpendicular to the a-axis. Therefore, the application of 3D-ED provides an effective method for studying superstructures caused by ordered arrangements of light atoms.

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Yang, Taimin, Steve Waitschat, Andrew Kentaro Inge, Norbert Stock, Xiaodong Zou e Hongyi Xu. "A Comparison of Structure Determination of Small Organic Molecules by 3D Electron Diffraction at Cryogenic and Room Temperature". Symmetry 13, n. 11 (9 novembre 2021): 2131. http://dx.doi.org/10.3390/sym13112131.

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3D electron diffraction (3D ED), also known as micro-crystal electron diffraction (MicroED), is a rapid, accurate, and robust method for structure determination of submicron-sized crystals. 3D ED has mainly been applied in material science until 2013, when MicroED was developed for studying macromolecular crystals. MicroED was considered as a cryo-electron microscopy method, as MicroED data collection is usually carried out in cryogenic conditions. As a result, some researchers may consider that 3D ED/MicroED data collection on crystals of small organic molecules can only be performed in cryogenic conditions. In this work, we determined the structure for sucrose and azobenzene tetracarboxylic acid (H4ABTC). The structure of H4ABTC is the first crystal structure ever reported for this molecule. We compared data quality and structure accuracy among datasets collected under cryogenic conditions and room temperature. With the improvement in data quality by data merging, it is possible to reveal hydrogen atom positions in small organic molecule structures under both temperature conditions. The experimental results showed that, if the sample is stable in the vacuum environment of a transmission electron microscope (TEM), the data quality of datasets collected under room temperature is at least as good as data collected under cryogenic conditions according to various indicators (resolution, I/σ(I), CC1/2 (%), R1, Rint, ADRA).

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Greene, William. "A Guide to Econometrics. 3d ed., by Peter Kennedy". Journal of Economic Education 24, n. 4 (settembre 1993): 371–73. http://dx.doi.org/10.1080/00220485.1993.10844807.

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Ali, Othman. "A Modern History of the Kurds, 3d rev. ed." American Journal of Islam and Society 23, n. 1 (1 gennaio 2006): 92–95. http://dx.doi.org/10.35632/ajis.v23i1.1642.

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This extensive survey of the Kurds’ history is divided into five sections:“The Kurds in the Age of Tribe and Empire,” “Incorporating the Kurds,”“Ethno-nationalism in Iran,” “Ethno-nationalism in Iraq,” and “Ethnonationalismin Turkey.” An introduction on Kurdish identity and social formation, as well as four appendices discussing the Treaty of Sèvres and theKurds of Syria, Lebanon, and Caucasia, are also included. David McDowall,a noted British specialist on Middle Eastern minority affairs and anacknowledged expert on Kurdish studies, has extensively revised the 1996second edition of his book. He provides an analysis of recent Kurdish eventsand a more up-to-date bibliography at the end of each section.This highly detailed history begins in the nineteenth century and ends inthe present day. The author discusses the interplay of the old and new facetsof Kurdish politics: local rivalries within Kurdish society; the enduringauthority of the traditional leadership represented by sheikhs and aghas; thefailure of modern nation states to respond to the challenge of Kurdishnationalism; and the use of Kurdish groups as pawns by major western powersand regional states in the region’s power politics. His methodology is primarilypolitical-historical in nature; however, anthropological and socialanalysis are not totally lacking.As presented by McDowall, a close scrutiny of modern Kurdish historyreveals striking continuities. For example, one pattern has characterizedKurdish-Iraqi relations since 1958: Each Iraqi government pursued peacenegotiations with the Kurds at first, only to fight them when it felt secureabout its rule. This pattern is also found in Iran’s relations with its Kurds.Turkey, however, has pursued a policy that seeks to assimilate and, at times,even ethnically cleanse its Kurdish population.There is also continuity in the major powers’ manipulation of the“Kurdish card” in Iraq. McDowall writes that in 1976, the SelectIntelligence Committee of the House of Representatives reported to theHouse that neither Iran nor the United States would like to see the civil wargoing on in Iraq at that time resolved in a way that would give the Kurds aclear win. Twenty years later, in 1991, the United States implemented a similarpolicy with the Kurds’ so-called “exclusionary zone’’ in northern Iraq.Fearing the consequences likely to follow Saddam Hussein’s overthrow – inparticular, the dismemberment of Iraq and wider regional instability – theUnited States refused to give the Kurds sufficient aid to enable them toestablish an independent homeland ...

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Stolberg, Harald O. "The Clinical Recognition of Congenital Heart Disease.3d ed". Radiology 166, n. 3 (marzo 1988): 678. http://dx.doi.org/10.1148/radiology.166.3.678.

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Samperisi, Laura, Xiaodong Zou e Zhehao Huang. "Three-dimensional electron diffraction: a powerful structural characterization technique for crystal engineering". CrystEngComm 24, n. 15 (2022): 2719–28. http://dx.doi.org/10.1039/d2ce00051b.

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Barbosa, Ana, Isabel Vale e Dina Alvarenga. "The use of Tinkercad and 3D printing in interdisciplinary STEAM education: A focus on engineering design". STEM Education 4, n. 3 (2024): 222–46. http://dx.doi.org/10.3934/steme.2024014.

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<abstract> <p>STE(A)M education (combining science, technology, engineering, art, and mathematics) has globally become a growing concern, being recognized as having the potential to prepare students for the challenges of the 21<sup>st</sup> century. However, the levels of integration of the involved disciplines, as well as their relevance, tend to vary. Engineering design (ED) is being used in educational contexts as an ideal STEAM content integrator to solve ill-structured real-world problems, using the practices of engineering as a problem-solving model. The present study aimed to understand how future elementary school teachers can solve an authentic problem that demands the construction of an artifact, using the ED process in the context of 3D printing, focusing on their performance, the perception of the role of the STEAM disciplines, and the potentials and challenges of computer-assisted design (CAD) and 3D printing. We conducted a qualitative exploratory study with 72 pre-service teachers of elementary education. The implementation was based on a didactical experience focused on solving an authentic problem through the ED process using Tinkercad and 3D printing. The research findings revealed that some of the participants did not follow the ED model exactly as it was presented, skipping or merging steps, but all were able to find a solution and reflect about how to improve it. The majority identified concepts associated with all of the STEAM subjects, although they found it easier to refer to mathematics and science topics. They valued the use of Tinkercad and 3D printing, which allowed them to easily build a virtual model and make it tangible, while also recognizing some challenges in the use of these technological resources. This study can contribute to the scarce literature about the interdisciplinary integration of 3D printing technology in STEAM education, promoting awareness of the overlaps in these disciplines and a more equitable disciplinary attention.</p> </abstract>

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Yu, Xue, Hongyi Yang, Xinran Lv, Xin Zhang, Veeriah Jegatheesan, Xiaobin Zhou e Yang Zhang. "Characterization and Performance Evaluation of Digital Light Processing 3D Printed Functional Anion Exchange Membranes in Electrodialysis". Processes 12, n. 6 (21 maggio 2024): 1043. http://dx.doi.org/10.3390/pr12061043.

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With the rapid development of 3D printing technologies, more attention has been focused on using 3D printing for the fabrication of membranes. This study investigated the application of digital light processing (DLP) 3D printing combined with quaternization processes to develop dense anion exchange membranes (AEMs) for electrodialysis (ED) separation of Cl− and SO42− ions. It was discovered that at optimal curing times of 40 min, the membrane pore density was significantly enhanced and the surface roughness was reduced, and this resulted in an elevation of desalination rates (97.5–98.7%) and concentration rates (165.8–174.1%) of the ED process. Furthermore, increasing the number of printed layers improved the membranes’ overall polymerization and performance, with double-layer printing showing superior ion flux. This study also highlights the impact of the polyethylene glycol diacrylate (PEGDA) molecular weight on membrane efficacy, where PEGDA-700 outperformed PEGDA-400 in ion transport capabilities and desalination efficiency. Additionally, higher 4-vinylbenzyl chloride (VBC) content improved the quaternary ammonium group concentration and membrane conductivity, and hence elevated the ED performance. Under optimized conditions, DLP 3D printed membranes demonstrated exceptional selectivity of 24.0 for Cl−/SO42− and a selective purity of 81.4%. With a current density of 400 A/m2, the current efficiency and energy consumption were in the range of 82.4% to 99.7%, and 17.2 to 25.4 kW‧h‧kg−1, respectively, showcasing the potential of advanced manufacturing techniques in creating efficient and functional ion exchange membranes.

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Wilson, Thomas H., Ariel K. Hart e Pete Sullivan. "Interrelationships of Marcellus Shale gas production to frac-induced microseismicity, interpreted minor faults and fractures zones, and stimulated reservoir volume, Greene County, Pennsylvania". Interpretation 4, n. 1 (1 febbraio 2016): T15—T30. http://dx.doi.org/10.1190/int-2015-0045.1.

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The data we analyzed are from a Marcellus Shale gas field in Greene County, southwestern Pennsylvania. We first investigated the relationship between microseismic event trends and discontinuities extracted from 3D seismic data and their relationship to [Formula: see text]. This analysis was followed by an examination of the relationship of cumulative gas production to radiated energy, stimulated reservoir volume (SRV), and energy density (ED). We have determined that microseismic event trends observed in multiwell hydraulic fracture treatments were similar to the trends of interpreted small faults and fracture zones extracted from 3D seismic coverage of the area. Hydraulic fracture treatments conducted in six laterals produced clusters of microseismic events with an average trend of N51°E and, to a more limited extent, N56°W. The N51°E microseismic event trend coincided closely with the average N52°E trend of interpreted minor faults and fracture zones extracted from the 3D seismic data. That relationship suggested that microseismic events form through reactivation of old faults and fracture zones in response to an easterly trending [Formula: see text]. We also found that variations in gas production correlated with variations in radiated microseismic energy ([Formula: see text] of 0.985), SRV ([Formula: see text] of 0.974), and ED ([Formula: see text] of 0.989). SRV is a measure of the volume of space occupied by induced microseismicity, whereas energy release per unit volume (ED) can be directly related to rupture area created through hydraulic fracture stimulation. We suggest that ED serves as a better estimator of production potential in unconventional shale reservoirs.

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Abate, D., F. Menna, F. Remondino e M. G. Gattari. "3D painting documentation: evaluation of conservation conditions with 3D imaging and ranging techniques". ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-5 (5 giugno 2014): 1–8. http://dx.doi.org/10.5194/isprsarchives-xl-5-1-2014.

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The monitoring of paintings, both on canvas and wooden support, is a crucial issue for the preservation and conservation of this kind of artworks. Many environmental factors (e.g. humidity, temperature, illumination, etc.), as well as bad conservation practices (e.g. wrong restorations, inappropriate locations, etc.), can compromise the material conditions over time and deteriorate an artwork. The article presents an on-going project realized by a multidisciplinary team composed by the ENEA UTICT 3D GraphLab, the 3D Optical Metrology Unit of the Bruno Kessler Foundation and the Soprintendenza per i Beni Storico Artistici ed Etnoantropologici of Bologna (Italy). The goal of the project is the multi-temporal 3D documentation and monitoring of paintings – at the moment in bad conservation’s situation - and the provision of some metrics to quantify the deformations and damages.

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Bellapu, Hema Vijay Sekar, Rabindra Kumar Sinha e Sripad Ramchandra Naik. "Estimation of Modulus of Deformation Using Rock Mass Rating—A Review and Validation Using 3D Numerical Modelling". Sustainability 15, n. 7 (24 marzo 2023): 5721. http://dx.doi.org/10.3390/su15075721.

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The Himalayan region has enormous potential for hydropower development. However, variations in geological and geotechnical conditions pose challenging tasks for the designers. If these variations are not tackled in a timely manner during underground excavations, especially for caverns, instabilities may occur, resulting in time and cost over-runs. For sustainable hydropower development, minimizing these over-runs is necessary. The modulus of deformation (Ed) of a rock mass is an essential input parameter required in the design of underground excavations. This study involves collecting the results of extensive in situ tested values for various hydroelectric projects in the Himalayan regions, along with the rock mass rating (RMR) values at 35 test sites. Ed is estimated empirically based on statistical analysis. Comparisons were made with the empirical equations already available in the literature, using RMR and the proposed equation for estimating Ed. Although different researchers have proposed many equations for estimating the value of Ed using RMR, a gap exists in validating such equations. In this regard, the proposed equation for Ed was verified by carrying out 3D numerical-modelling studies using FLAC3D, an explicit finite-difference software for an underground powerhouse cavern and comparing the displacement values with the field instrumentation data.

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Teixeira, Sarah F., Cecilia P. Rodrigues, Cícero J. S. Costa, Thais N. Pettinati, Ricardo A. de Azevedo, Lisley I. Mambelli, Salomão D. Jorge et al. "Edelfosine: An Antitumor Drug Prototype". Anti-Cancer Agents in Medicinal Chemistry 18, n. 6 (12 novembre 2018): 865–74. http://dx.doi.org/10.2174/1871520618666180105165431.

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Background: Lung cancer is the most prevalent cancer and a high fatality disease. Despite of all available therapeutic approaches, drug resistance of chemotherapy agents for patients remain as an obstacle. New drugs integrating immunotherapeutic and conventional cytotoxic effects is a powerful strategy for the treatment of cancer to overcome this limitation. Antineoplastic phospholipids combine both of these activities by affecting lipid metabolism and signaling through lipid rafts. Therefore, they emerge as interesting scaffolds for designing new drugs. Objective: We aimed to evaluate antineoplastic phospholipids as scaffolds for designing new drugs for lung cancer treatment. Methods: The initial screening in A549 cells was performed by MTT assay. Others cytotoxic effects were evaluated in A549 cells by clonogenic assay, Matrigel 3D culture and flow cytometry analyses of cell cycle, apoptosis, mitochondrial membrane electronic potential and superoxide production. Immunological effects of ED were accessed on dendritic cells (DCs) and the expression of some markers were evaluated by flow cytometry. In vivo lung colonization analysis was performed after intravenously injection of A549 cells and daily treatment with ED. Results: Herein, ED showed to be the most efficient compound concerning cytotoxic, thereby, ED was selected for following tests. ED showed a cytotoxic profile in both monolayer and 3D culture and also in vivo models using A549 cells. This profile is due to G0/G1 phase cellular arrest and apoptosis drove by mitochondrial membrane depolarization and superoxide overproduction. Moreover, ED modulated DCs toward an activated pattern by the increased expression of CD83 and a remarkable decreased expression of PD-L1/CD274 on DCs membrane. Conclusions: Thus, ED is an interesting antitumor drug prototype due to not only its direct cellular cytotoxicity but also given its immunological features.

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Bengtsson, Viktor E. G., José Miguel de la Rosa-Trevin, Laura Pacoste, Gerhard Hofer, Hongyi Xu e Xiaodong Zou. "Scipion-ed: a workflow-based and self-documenting program for 3D-ED data processing". Acta Crystallographica Section A Foundations and Advances 77, a2 (14 agosto 2021): C1275—C1276. http://dx.doi.org/10.1107/s0108767321084397.

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Quaia, Emilio, Elena Kiyomi Lanza de Cristoforis, Elena Agostini e Chiara Zanon. "Computed Tomography Effective Dose and Image Quality in Deep Learning Image Reconstruction in Intensive Care Patients Compared to Iterative Algorithms". Tomography 10, n. 6 (7 giugno 2024): 912–21. http://dx.doi.org/10.3390/tomography10060069.

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Deep learning image reconstruction (DLIR) algorithms employ convolutional neural networks (CNNs) for CT image reconstruction to produce CT images with a very low noise level, even at a low radiation dose. The aim of this study was to assess whether the DLIR algorithm reduces the CT effective dose (ED) and improves CT image quality in comparison with filtered back projection (FBP) and iterative reconstruction (IR) algorithms in intensive care unit (ICU) patients. We identified all consecutive patients referred to the ICU of a single hospital who underwent at least two consecutive chest and/or abdominal contrast-enhanced CT scans within a time period of 30 days using DLIR and subsequently the FBP or IR algorithm (Advanced Modeled Iterative Reconstruction [ADMIRE] model-based algorithm or Adaptive Iterative Dose Reduction 3D [AIDR 3D] hybrid algorithm) for CT image reconstruction. The radiation ED, noise level, and signal-to-noise ratio (SNR) were compared between the different CT scanners. The non-parametric Wilcoxon test was used for statistical comparison. Statistical significance was set at p < 0.05. A total of 83 patients (mean age, 59 ± 15 years [standard deviation]; 56 men) were included. DLIR vs. FBP reduced the ED (18.45 ± 13.16 mSv vs. 22.06 ± 9.55 mSv, p < 0.05), while DLIR vs. FBP and vs. ADMIRE and AIDR 3D IR algorithms reduced image noise (8.45 ± 3.24 vs. 14.85 ± 2.73 vs. 14.77 ± 32.77 and 11.17 ± 32.77, p < 0.05) and increased the SNR (11.53 ± 9.28 vs. 3.99 ± 1.23 vs. 5.84 ± 2.74 and 3.58 ± 2.74, p < 0.05). CT scanners employing DLIR improved the SNR compared to CT scanners using FBP or IR algorithms in ICU patients despite maintaining a reduced ED.

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Goodrich, Jonathan N. "Book Review: The Tourism System: An Introductory Text, 3d ed." Journal of Travel Research 40, n. 1 (agosto 2001): 119–20. http://dx.doi.org/10.1177/004728750104000118.

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Ramm, Daniel. "Ben Mijnheer (ed.): Clinical 3D dosimetry in modern radiation therapy". Australasian Physical & Engineering Sciences in Medicine 41, n. 4 (30 agosto 2018): 1127–28. http://dx.doi.org/10.1007/s13246-018-0683-2.

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Martin, David S. "Freeman and Johnson's Clinical Radionuclide Imaging.3d ed. 2 vols". Radiology 157, n. 1 (ottobre 1985): 238. http://dx.doi.org/10.1148/radiology.157.1.238.

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42

Pantoja, Enrique. "L'Ultrasonographie en pathologie digestive[Ultrasound of digestive pathology]. 3d ed". Radiology 161, n. 1 (ottobre 1986): 152. http://dx.doi.org/10.1148/radiology.161.1.152.

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Griffiths, Harry J. L. "Environmental Radioactivity: From Natural, Industrial, and Military Sources.3d ed". Radiology 165, n. 3 (dicembre 1987): 702. http://dx.doi.org/10.1148/radiology.165.3.702.

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Fischer, Harry W. "Anatomy: A Regional Atlas of the Human Body.3d ed". Radiology 166, n. 3 (marzo 1988): 642. http://dx.doi.org/10.1148/radiology.166.3.642.

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Xu, Hongyi. "Crystal structure determination of small molecules by 3D ED/MicroED". Acta Crystallographica Section A Foundations and Advances 79, a1 (7 luglio 2023): a69. http://dx.doi.org/10.1107/s2053273323099308.

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Gruza, Barbara Olech, Petr Brázda, Lukáš Palatinus e Paulina M. Dominiak. "Beyond IAM refinement for 3D-ED data: aspherical scattering factors". Acta Crystallographica Section A Foundations and Advances 79, a2 (22 agosto 2023): C408. http://dx.doi.org/10.1107/s2053273323092070.

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47

Hofer, G., L. Wang, H. Xu e X. Zou. "Advances in protein electron diffraction (3D-ED/microED) sample preparation". Acta Crystallographica Section A Foundations and Advances 79, a2 (22 agosto 2023): C391. http://dx.doi.org/10.1107/s2053273323092240.

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48

SASAKI, Toshiyuki. "Microcrystal Electron Diffraction（MicroED, 3D ED）for Small-Molecule Crystals". Nihon Kessho Gakkaishi 66, n. 3 (31 agosto 2024): 163–64. http://dx.doi.org/10.5940/jcrsj.66.163.

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49

Skoczypiec, Sebastian, Marcin Grabowski e Adam Ruszaj. "Research on Unconventional Methods of Cylindrical Micro-Parts Shaping". Key Engineering Materials 504-506 (febbraio 2012): 1225–30. http://dx.doi.org/10.4028/www.scientific.net/kem.504-506.1225.

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One can state that special place in group of micromanufacturing methods are connected with application of unconventional methods, such as electrochemical (EC) and electrodischarge (ED) micromilling, because of their high efficiency in shaping 3D structures. In the paper result of cylindrical tools manufacturing for EC and ED-micro milling process will be discussed. The special attention will be paid for electrochemical etching, electrodischarge turning and some hybrid methods application for micro-tools manufacturing

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Song, Zhiying, Huiyan Jiang, Qiyao Yang, Zhiguo Wang e Guoxu Zhang. "A Registration Method Based on Contour Point Cloud for 3D Whole-Body PET and CT Images". BioMed Research International 2017 (2017): 1–11. http://dx.doi.org/10.1155/2017/5380742.

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The PET and CT fusion image, combining the anatomical and functional information, has important clinical meaning. An effective registration of PET and CT images is the basis of image fusion. This paper presents a multithread registration method based on contour point cloud for 3D whole-body PET and CT images. Firstly, a geometric feature-based segmentation (GFS) method and a dynamic threshold denoising (DTD) method are creatively proposed to preprocess CT and PET images, respectively. Next, a new automated trunk slices extraction method is presented for extracting feature point clouds. Finally, the multithread Iterative Closet Point is adopted to drive an affine transform. We compare our method with a multiresolution registration method based on Mattes Mutual Information on 13 pairs (246~286 slices per pair) of 3D whole-body PET and CT data. Experimental results demonstrate the registration effectiveness of our method with lower negative normalization correlation (NC = −0.933) on feature images and less Euclidean distance error (ED = 2.826) on landmark points, outperforming the source data (NC = −0.496, ED = 25.847) and the compared method (NC = −0.614, ED = 16.085). Moreover, our method is about ten times faster than the compared one.

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