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Experimental evaluation of mechanical compression of lattice trusses made with Ti6Al4V for aerospace use

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Chinese Journal of Aeronautics 2024年第5期37卷 520-532页

作者： carlo Giovanni FERRO Sara VARETTI Paolo MAGGIORE Department of Mechanical and Aerospace Engineering Politecnico di TorinoCorso Duca degli AbruzziTorino 10124Italy

Lattice structures are three-dimensional structures composed of repeated geometrical shapes with multiple interconnected nodes,providing high strength-to-weight ratios,customizable properties,and efficient use of materials.A smart use of materials leads to reduced fuel consumption and lower operating costs,making them highly desirable for aircraft ***,the customizable properties of lattice structures allow for tailoring to specific design requirements,leading to improved performance and safety for *** advantages make lattice structures an important focus for research and development in the aviation *** paper presents an experimental evaluation of the mechanical compression properties of lattice trusses made with Ti6Al4V,designed for use in an anti-ice *** truss structures were manufactured using additive manufacturing techniques and tested under compressive loads to determine mechanical *** showed that lattice trusses exhibited high levels of compressive strength,making them suitable for use in applications where mechanical resistance and durability are critical,such as in anti-ice *** also highlight the potential of additive manufacturing techniques for the fabrication of lattice trusses with tailored mechanical *** study provides valuable insights into the mechanical behavior of Ti6Al4V lattice trusses and their potential applications in anti-ice systems,as well as other areas where high strength-to-weight ratios are *** results of this research contribute to the development of lightweight,efficient,and durable anti-ice systems for use in aviation and other industries.

关键词： Additive Manufacturing(AM) Selective Laser Sintering(SLM) Anti ice systems Lattice structures Aircraft on board systems Design of Experiments(DOE)

Local recurrence rate as quality indicator in surgery for pancreatic cancer?

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Hepatobiliary & Pancreatic Diseases International 2024年第5期23卷 548-550页

作者： carlo Alberto Pacilio Alessandro Cucchetti Giorgio Ercolani General and Oncologic Surgery Unit Morgagni-Pierantoni HospitalAUSL RomagnaVia Carlo Forlanini 3447121ForlìItaly Department of Medical and Surgical Sciences Alma Mater StudiorumUniversity of BolognaVia Massarenti 940138BolognaItaly

To the Editor: As we all know, even with the current advancements regarding novel chemotherapy regimens, patients affected by pancreatic cancer(PC) have an extremely dismal prognosis(5-year survival rate 12% for all stages in the National Cancer Institute SEER database). Among the patients undergoing surgical treatment, the prognosis is mostly affected by recurrence. PC after surgery has mainly four patterns of recurrence, isolated or variously associated with each other: local, lymph nodal, peritoneal or distant(liver, lung, other sites).

关键词： surgery prognosis cancer

Sand Dune Species Distribution and Size Variations in Two Areas Inside a Natural Protected Area Subjected to Different Human Disturbance

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American Journal of Plant Sciences 2013年第9期4卷 1899-1910页

作者： Loretta Gratani Maria Fiore Crescente Laura Varone Emanuela Gini carlo ricotta Andrea Bonito Department of Environmental Biology Sapienza University of Rome Rome Italy.

Sand dune species were analyzed across two areas included in the “Roman Coastal State Nature Reserve” (Italy): Ostia (O) and Marina di Palidoro (P). Significant variations in species distribution, dry mass and size over the gradient from the water-edge toward the inland between O and P were observed. Species colonize O, on an average, at 79 m from the water-edge extended along the gradient toward the inland over a length of 26 m. PD is 40.8 ± 9.9 plants.m-2. Ononis variegata and Elymus farctus have the highest PD (15.4 ± 1.3 plants.m-2), followed by Silene colorata and Sporobulus pungens (4.3 ± 3.9 plants.m-2), by Cakile maritima, Echinophora spinosa, Eryngium maritimum, Ammophila arenaria, Anthemis maritima, Cyperus capitatus, Medicago marina and Calystegia soldanella (.m-2), with C. soldanella having the lowest PD (0.02 plants.m-2). On an average, in P, the species colonize the dune at 17 m from the water-edge for a length of 46 m toward the inland, PD is on an average 21.5 ± 16.1 plants.m-2. S. pungens, E. farctus and O. variegata have the highest PD (6.0 ±

关键词： Dune Vegetation Human Disturbance Plant Density Organic Soil Matter

Witness for resolution: post-conflict quadratic affiliation in semi-free ranging pigs

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Current Zoology 2024年第2期70卷 233-243页

作者： Ivan Norscia Edoardo Collarini carlo Robino Elena Chierto Giada Cordoni Department of Life Sciences and Systems Biology University of TorinoVia Accademia Albertina 1310123 TorinoItaly Department of Public Health Sciences and Pediatric s University of TorinoC.So Galileo Galilei 2210126 TorinoItaly

In social mammals,post-conflict resolution can involve the reunion of former opponents(reconciliation),spontaneous/solicited post-conflict affliation of a third party with either opponent(triadic contacts),and affiliation between other individuals(hereafter bystanders;quadratic contacts).Quadratic contacts-possibly informing complex cognitive abilities-have been neglected in post-conflict *** investi-gated quadratic affliation in semi-free ranging pigs Sus scrofa,at the ethical farm Parva-Domus(Cavagnolo,Italy).Kinship was *** collected behavioral data on adult pigs(n=104)via video recordings(43 h)followed by video *** and anxiety behaviors between bystanders were collected under post-conflict(PC;following a conflict between non-bystanders)and matched-control(MC;no conflict)*** affiliation was present in pigs,as bystanders affliated more in PC than MC,and such affiliation was followed by a decrease in the anxiety behaviors of both the interacting ***,quadratic contacts may be partly aimed at reducing one's own anxiety(intrinsic regulation).Quadratic affiliation was highest between closely related bystanders,which suggests that such affiliation may be most effective when close kin is *** affiliation was lowest after reconciliation and spontaneous triadic *** suggests that direct peacemaking between opponents and spontaneous triadic contacts with close kin may most likely replace quadratic ***,pigs can be influenced by the negative events that affect other pigs-but not themselves-and their response may be modulated by social *** non-random quadratic affiliation may point toward the presence of elements of social appraisal abilities inpigs.

关键词： anxiety reduction emotional regulation reconciliation social appraisal triadic contacts.

Introduction to the Special Issue on Recent Developments on Computational Biology-I

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Computer Modeling in Engineering & Sciences 2024年第6期139卷 2261-2264页

作者： carlo Cattani Haci Mehmet Baskonus Armando Ciancio Engineering School(DEIM) University of TusciaViterbo01100Italy Department of Mathematics and Science Education Faculty of EducationHarran UniversitySanliurfa63190Turkey Universitàdegli Studi di Messina Dipartimento di Scienze BiomedicheOdontoiatriche e delle Immagini Morfologiche e FunzionaliMessina98122Italy

In modern time,experts started to use interdisciplinary properties with the development of technology and ***,these disciplines provide more sophisticated properties of real-world *** this sense,some models need to be investigated by using revised and modified traditional *** first discipline is the applied sciences such as physics,engineering,mechanics,electricity,biology,economy and mathematical applications[1-5].In this stage,many methods[5-10]are developed and *** uncover the deep properties of problems is to use the main properties of such interdisciplinary ***,works conducted on such mathematical models including non-local operators,partial,ordinary and integer order have introduced a deeper investigation of problems for *** using technological tools,expertsmay observe more realistic and exact results of models.

关键词： properties. integer operators

Parallel pathways:A chronicle of evolution in rectal and breast cancer surgery

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World Journal of Gastrointestinal Oncology 2024年第4期16卷 1091-1096页

作者： Antonio Pesce NicolòFabbri Diletta Iovino carlo Vittorio Feo Unit of General Surgery University of FerraraAzienda USL of FerraraFerrara 44023LagosantoItaly

In this editorial,we have analyzed the historical evolution of rectal and breast cancer surgery,focusing on the progressive reduction of demolitive approaches and the increasing use of more conservative strategies,accompanied by a growing emphasis on perioperative treatments aimed at enhancing surgical *** of these changes have been made possible due to an increased awareness and understanding of oncological diseases and improved perioperative treatments.

关键词： Rectal cancer History Breast surgery Demolitive treatment Conservative surgery

Current status of magnetic resonance imaging radiomics in hepatocellular carcinoma:A quantitative review with Radiomics Quality Score

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World Journal of Gastroenterology 2024年第4期30卷 381-417页

作者： Valentina Brancato Marco Cerrone Nunzia Garbino Marco Salvatore carlo Cavaliere Department of Information Technology IRCCS SYNLAB SDNNaples 80143Italy Department of Radiology IRCCS SYNLAB SDNNaples 80143Italy

BACKGROUND Radiomics is a promising tool that may increase the value of magnetic resonance imaging(MRI)for different tasks related to the management of patients with hepatocellular carcinoma(HCC).However,its implementation in clinical practice is still far,with many issues related to the methodological quality of radiomic *** To systematically review the current status of MRI radiomic studies concerning HCC using the Radiomics Quality Score(RQS).METHODS A systematic literature search of PubMed,Google Scholar,and Web of Science databases was performed to identify original articles focusing on the use of MRI radiomics for HCC management published between 2017 and *** methodological quality of radiomic studies was assessed using the RQS ***’s correlation(ρ)analysis was performed to explore if RQS was correlated with journal metrics and characteristics of the *** level of statistical significance was set at P<*** One hundred and twenty-seven articles were included,of which 43 focused on HCC prognosis,39 on prediction of pathological findings,16 on prediction of the expression of molecular markers outcomes,18 had a diagnostic purpose,and 11 had multiple *** mean RQS was 8±6.22,and the corresponding percentage was 24.15%±15.25%(ranging from 0.0% to 58.33%).RQS was positively correlated with journal impact factor(IF;ρ=0.36,P=2.98×10^(-5)),5-years IF(ρ=0.33,P=1.56×10^(-4)),number of patients included in the study(ρ=0.51,P<9.37×10^(-10))and number of radiomics features extracted in the study(ρ=0.59,P<4.59×10^(-13)),and time of publication(ρ=-0.23,P<0.0072).CONCLUSION Although MRI radiomics in HCC represents a promising tool to develop adequate personalized treatment as a noninvasive approach in HCC patients,our study revealed that studies in this field still lack the quality required to allow its introduction into clinical practice.

关键词： Hepatocellular carcinoma Systematic review Magnetic resonance imaging Radiomics Radiomics quality score

Breeding phase and outcome determine space use in European rollers Coracias garrulus prior to migration

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Current Zoology 2024年第2期70卷 137-149页

作者： Flavio Monti Sanja Barisic Sebastian Cannarella Davor Cikovic Vesna Tutis JelenaKralj carlo Catoni aUniversity of Siena Department of Physical SciencesEarth and EnvironmentVia Mattioli 453100 SienaItaly Institute of Ornithology Croatian Academy of Sciences and ArtsGunduliceva 24HR-1000 ZagrebCroatia Ornis italica Piazza Crati 1500199 RomeItaly

The breeding period is a demanding and time-constrained phase for migratory bird *** outcome and duration can interact with the extent and duration of post-breeding movements,resulting in individual differences in space use ultimately influencing later stages of the annual *** present space-use and home range estimates during the breeding season for 21 European rollers Coracias garrulus tracked between 2018 and 2022,in Italy and *** high-resolution spatial GPS data coupled with regular nest-box monitoring,we analyzed dif-ferences in space use during the incubation/nestling period versus post-breeding period prior to migration,accounting for the breeding outcome(successful ***).We found that adult movements were strongly reduced during the first phase,whereas increased in the post-breeding phase,especially for failed *** breeders remained in the surroundings of the nest site,whereas unsuccessful ones tended to abandon the nest and visit distant areas(up to 500 km)for long periods(60.5±6.2 days).Breeding outcome did not influence the departure date of autumn migration,suggesting that failed breeders used this period for exploratory movements but not for advancing the onset of *** exploratory movements may be functional to prospect and inform settlement decisions in failed breeders in search of new breeding opportunities and may be particularly important in migratory species,which generally have a limited period to gather information prior to autumn *** study demonstrates the need to investigate seasonal movements in different populations and the potential importance of pros-pectingpost-breeding movements for long-distance migratory species.

关键词： animal movement biologging conservation Coracidae Mediterranean nest-box population monitoring prospecting movements reproduction.

Programming nonlinear propagation for efficient optical learning machines

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Advanced Photonics 2024年第1期6卷 73-83页

作者： Ilker Oguz Jih-Liang Hsieh Niyazi Ulas Dinc Ugur Tegin Mustafa Yildirim carlo Gigli Christophe Moser Demetri Psaltis École Polytechnique Fédérale de Lausanne Institute of Electrical and Micro EngineeringEcublensSwitzerland Koc University Department of Electrical and Electronics EngineeringIstanbulTurkey

The ever-increasing demand for training and inferring with larger machine-learning models requires more efficient hardware solutions due to limitations such as power dissipation and *** is a promising contender for providing lower power computation,since light propagation through a nonabsorbing medium is a lossless ***,to carry out useful and efficient computations with light,generating and controlling nonlinearity optically is a necessity that is still *** fibers(MMFs)have been shown that they can provide nonlinear effects with microwatts of average power while maintaining parallelism and low *** propose an optical neural network architecture that performs nonlinear optical computation by controlling the propagation of ultrashort pulses in MMF by wavefront *** a surrogate model,optimal sets of parameters are found to program this optical computer for different tasks with minimal utilization of an electronic *** show a remarkable decrease of 97%in the number of model parameters,which leads to an overall 99%digital operation reduction compared to an equivalently performing digital neural *** further demonstrate that a fully optical implementation can also be performed with competitive accuracies.

关键词： neural networks nonlinear optics fiber optics surrogate optimization neuromorphic computing wavefront shaping