מהדקה ה-00:47

ד"ר רונן וורקר

דר' רונן וורקר

Dr. Ronen Verker, Soreq NRC

Google Scholar

Visiting scientist at TAU

Areas of interest: Space environment effects on materials, Nanocomposites, Shape memory polymers

Email: ronenv@tauex.tau.ac.il

EE Seminar: Persistent-Memory based Storage Systems

25 בנובמבר 2024, 12:00

אולם 011, בניין כיתות-חשמל

EE Seminar: Persistent-Memory based Storage Systems

(The talk will be given in English)

Speaker: Dr. Amit Golander

011 hall, Electrical Engineering-Kitot Building‏

Monday, November 25^th, 2024

12:00 - 13:00

Persistent-Memory based Storage Systems

Abstract

Persistent Memory is an emerging technology that will offer substantial advantages compared to current flash and block-based storage devices. With PM, applications should run faster, consume fewer compute resources and potentially be made simpler as well. Yet, new software is required to allow such PM benefits. For most of the last decade, I was the chief architect for PM-based software at Plexistor, NetApp and Huawei Cloud, all pioneers in leveraging PM and coming from different product/business constraints.

In this talk, I will explore the many opportunities such a radically new storage-class memory PM device opens, discuss the architectural tradeoffs and exemplify with two PM-based systems that I designed:

1) the first local feature-rich PM-based file system with optional remote mirroring (Plexistor & NetApp, 2014-2020) and

2) the first remote random-access PM pool with optional near-memory processing (Huawei Cloud 2020-2024)

Short Bio

Dr. Amit Golander was until last month the Cloud Storage CTO and Cloud lab director for Huawei R&D center in Israel (2020-2024). He received his B.Sc. in EE & CS in 2001 and his Ph.D. in Computer Architecture in 2008, both from Tel- Aviv University.

Amit co-founded Plexistor (acquired by NetApp, 2014-2017-2020), where he was responsible for developing the world’s first feature-rich PM-based file system and surrounding MAX Data product. Before that, Amit was a technology leader in: Tonian (acquired by PrimaryData in 2013), IBM Next-Gen. Systems Research (2008-2011) and IBM System & Technology Group (1999-2008).

Amit composed 59 patents and 26 peer-reviewed papers & posters. He taught Storage and Computer Architecture courses and co-advised 3 M.Sc. students at TAU EE. His research interests include hardware and software for data center infrastructure and in particular the potential of emerging rack-scale computing to revolutionize heterogeneous compute, memory disaggregation, storage systems and photonic fabrics.

השתתפות בסמינר תיתן קרדיט שמיעה = עפ"י רישום שם מלא + מספר ת.ז. בטופס הנוכחות שיועבר באולם במהלך הסמינר

Physical Electronics Seminar : Decoupled Water Splitting: H2pro is revolutionizing the Green Hydrogen Landscape

סמינר שמיעה לתלמידי תואר שני ושלישי

21 בנובמבר 2024, 11:00

Room 011 Kitot Building

Physical Electronics Seminar : Decoupled Water Splitting: H2pro is revolutionizing the Green Hydrogen Landscape

-סמינר זה יחשב כסמינר שמיעה לתלמידי תואר שני ושלישי- This Seminar Is Considered A Hearing Seminar For Msc/Phd Students-

אירוע פתיחה של מועדון היזמות איגנייט

04 בדצמבר 2024, 18:00 - 20:30

אוניברסיטת תל אביב

Ignite by Coller Opening Event: Turning Challenges into Innovation!

Innovation ignited by challenges! Join us for an evening of hope & inspiration

הצטרפו אלינו לגלות את עולמות החדשנות בתחום הבריאות עם אורח הכבוד שלנו אבנר הלפרין מנכ"ל שיבא אימפקט.

אבנר מעורר השראה לכל יזם הוא ידבר ויציג את הנושאים הבאים:

למידה מיוזמת שיבא אימפקט על מאוד חידושים ועשרות סטארטאפים שנולדו מתוך אתגרי התקופה.
תובנות איך בינה מלאכותית הפכה למרכיב מרכזי בפריצות הדרך האחרונות.
סיפורי הצלחות וכישלונות - מסע בעקבות הסיפורים שהובילו להקמת אקו סיסטם חדשני לבריאות עם חברות בשווי כולל של 4.1 מיליארד$.
סשן שאלות ותשובות, מינגלינג, כיבוד קל, והרבה אווירה טובה.

האירוע באנגלית

מתי: בתאריך 4.12, בשעה 18:00

איפה: אוניברסיטת תל אביב

בואו עם סקרנות ושאלות – מחכים לכם

להרשמה:

https://www.eventbrite.com/e/turning-challenges-into-innovation-tickets-1081579295789?aff=spkr

Ignite Entrepreneurship Club is thrilled to invite you to our Opening Year Event!

Get ready to kick off a season filled with inspiration, innovation, and growth!

Meet the Inspiring Avner Halperin -CEO of Sheba Impact, a true role model for innovators everywhere.

Join us to dive into the world of health-tech innovation and learn from the best in the field!

What’s in Store?

Insights from Sheba ARC’s groundbreaking initiative: Hundreds of innovations, dozens of startups, all launched in response to recent challenges.
AI & Innovation: Discover how AI has become a cornerstone of medical breakthroughs.
Success Stories & Hard Lessons: Explore the highs and lows that created a thriving health innovation ecosystem with companies valued at $4.1B
Interactive Q&A session, plus – you won’t want to miss the networking, refreshments, and all-around good vibes!

Waiting for you to join us!

English-speaking event!

WHEN: 4.12, 18:00

WHERE: Tel Aviv University

To register:https://www.eventbrite.com/e/turning-challenges-into-innovation-tickets-1081579295789?aff=spkr

מדויקות- ארוע פתיחת שנה

20 בנובמבר 2024, 14:00 - 15:30

לובי

סמינר שמיעה לתלמידי תואר שני ושלישי

19 בנובמבר 2024, 14:00

בניין וולפסון, חדר 206

Join us with Zoom

Enhancing Case-Control Matching in Clinical Trials: A Wearable Data Framework for Improved Outcome Precision in Vaccine Studies

Edan Shahmoon, M.Sc. student at the department of Industrial

Advisor: Prof. Dan Yamin

Abstract:

Recruiting participants for clinical trials is a resource-intensive process, where the quality of case-control matching directly influences the reliability and validity of trial outcomes. We developed a methodological framework to enhance case-control matching by analyzing continuous physiological data from wearable devices, such as smartwatches, with the goal of improving effect size estimation in clinical trials. Our approach incorporates a novel convolution-based method for imputing missing data in time series, combined with advanced matching algorithms to pair cases and controls based on physiological similarities. Simulation-based analyses were conducted to evaluate the potential improvements in outcome precision and reliability. We validated our framework using data from 5,000 individuals infected with COVID-19, applying it specifically to COVID-19 vaccination studies. Results suggest that in scenarios with low outcome risk and low vaccine efficacy, our approach may help reduce the required sample size while maintaining similar outcomes to those observed in larger trials. This framework represents a promising step forward in optimizing participant recruitment and enhancing outcome reliability in clinical research, particularly in vaccination studies.

Bio:

Edan Shahmoon, M.Sc. student at the department of Industrial Engineering in Tel Aviv University, specializing in Data Science. Edan holds a B.SC. Degree in Industrial Engineering from Tel Aviv University. His professional background includes roles as a Research Assistant at Berglas School of Economics, a DevOps engineer at Hewlett Packard Enterprise (HPE) and as a Data Scientist in the field of predictive maintenance.

סמינר מחלקתי של עמית שוקרון-תופעות מעבר בתהליכים מונעים חשמלית לפתרונות בנושאי אקלים-מים-אנרגיה

27 בינואר 2025, 14:00 - 15:00

Transport Phenomena in Electro-Driven Processes at the Climate-Water-Energy Nexus

Monday January 27th at 14:00

Wolfson Building of Mechanical Engineering, Room 206

Abstract:

Climate change significantly impacts many aspects of our lives, necessitating shifts in fields such as the energy market, the supply of critical materials, and the management and recycling of potable water. These interconnected aspects are often referred to as the climate-water-energy nexus. A key challenge within this nexus is the urgent need for decarbonization, which is crucial for mitigating global warming. This, in turn, necessitates the widespread electrification of most industries and processes. Electro-driven processes offer a promising pathway due to their reliance on electrical energy, often operating at low voltages. Furthermore, these processes rely on a wide variety of materials and configurations, enabling flexibility in design and operation. The research and development of novel and promising electro-driven systems primarily focuses on designing novel materials with enhanced electrical conductivity, improved reaction kinetics, and increased selectivity. However, transport phenomena are frequently overlooked, despite their importance. Mass transfer limitations can significantly deplete reactants, hindering overall performance. Additionally, underexplored heat transfer processes can adversely affect the performance of temperature-sensitive components and reactions.

This presentation will provide a detailed theoretical framework for understanding transport phenomena and their critical role in various electro-driven processes within the climate-water-energy nexus. The presentation will center on the importance of pH for various processes and explore the potential of electrical pH control. First, the presentation will present how electrosorption-based effects on pH are leveraged to enable efficient boron removal, a crucial process for seawater desalination. Subsequently, the presentation will demonstrate how bipolar membranes are utilized to control local pH conditions, enabling efficient carbon capture and utilization. The presentation will conclude by providing a broader outlook regarding the importance of transport phenomena in electro-driven processes.

Bio:

Amit Shocron is currently a postdoctoral associate in the Department of Chemical and Environmental Engineering at Yale University under the guidance of Prof. Menachem Elimelech. He received his B.Sc., M.Sc., and Ph.D. from the Faculty of Mechanical Engineering at the Technion – Israel Institute of Technology. His research focuses on electro-driven processes supporting the transition to a sustainable future. Specifically, he is interested in carbon capture and utilization, flow batteries for energy storage, and ion-selective separations from aqueous solutions for water desalination, wastewater treatments, and extraction of valuable materials.

סמינר מחלקתי של ויקטור הרמייב- גלים במוצקים עם מתחי פני השטח

20 בינואר 2025, 14:00 - 15:00

Waves in solids with surface stresses

Monday January 20th at 14:00

Wolfson Building of Mechanical Engineering, Room 206

Abstract:

We discuss propagation of surface and interfacial waves in elastic and viscoelastic media possessing surface stresses and surface energy. Nowadays mechanics of media with surface stresses found various applications at small scales as well as at macroscales. The discussed class of models describes of coupled deformations of solids with thin coatings or interface layers. In particular, surface stresses could be responsible for size-effects observed at the nanoscale.

With the lecture we discuss a series of boundary-value problems for antiplane motions, see [1-7] for details. These problems illustrate the influence of surface stresses. For example, antiplane surface waves exist in an elastic half-space only if one takes into account surface kinetic energy and surface strain energy in addition to classic constitutive equations in the bulk. Here we discussed the propagation of antiplane waves in an elastic half-space, in an elastic strip perfectly or non-perfectly attached to a half-space. Transverse waves are also studied in an elastic cylinder. Dispersion curves were obtained and analysed. In particular, it was shown that surface waves related to surface stresses propagate with lower speed than others. Finally, viscosity effects were analysed. We demonstrated that even small dissipation essentially changes the behaviour of dispersion curves and the decay with the depth. This is more pronounced for relatively large values of a wave frequency.

Bio:

Prof. VICTOR EREMEYEV from University of Cagliari, Italy

Professor Eremeyev’s research relates to extension of the classic models of continua and structures and related mathematical methods towards new applications at various scales.

Area of interests includes Surface elasticity; Theory of plates and shells; Generalized continua such as micropolar, micromorphic, strain gradient elasticity with applications to metamaterials; Nonlinear elasticity; Nano- and micromechanics.

Scientific record contains more than 270 research papers and 15 written or edited books totally cited more that 6300 times.

סמינר מחלקתי של יבגני מוגילבסקי- גלים לא ליניאריים במשטחים חופשיים של נוזלים צמיגים ובתוך ממשקים מרובדים

13 בינואר 2025, 14:00 - 15:00

Nonlinear waves at free surfaces of viscous liquids and within stratified interfaces

Monday January 13th at 14:00

Wolfson Building of Mechanical Engineering, Room 206

Abstract:

Modelling mass and energy exchange between fluids often involves solving free boundary problems, where the computational domain is unknown a priori, and the fluid interface must be determined during the solution process. These interfaces can exhibit instability, leading to the formation of propagating or standing waves. This lecture will explore two problems demonstrating different wave patterns in dispersive and non-dispersive systems with viscous liquids.

The first problem focuses on the modelling of a circular hydraulic jump, which occurs when a liquid jet hits a plane and spreads symmetrically as a thin, fast-flowing film. This phenomenon is relevant for numerous applications involving heat and mass exchange, coating technologies being important examples. Circular hydraulic jump also serves as a laboratory model for astrophysical phenomena where the governing equations resemble those used in shallow-water theory. Several approaches to describe and control this flow will be discussed, including the effect of external body forces on the evolution of the jump.

The second problem examines resonant standing waves at the interface between two deep fluid layers (the liquid-gas boundary and the mixed layer between two liquids with slightly different densities are considered). The waves are generated by a small vertically oscillating body, with the forcing frequency being slightly different from the system's natural eigenfrequencies. A model that simplifies the system to a finite number of degrees of freedom will be presented, predicting how detuning from the dispersion relation leads to a superposition of multiple spatial modes. The effects of stratification within the mixed layer will also be explored, with the identification of localized internal waves.

Bio:

Evgeny Mogilevskiy earned his M.Sc. in Mechanics (with honors) in 2005 and a PhD in Fluid Mechanics in 2009 from the Lomonosov Moscow State University. After a postdoctoral fellowship at the University of Leuven in Belgium in 2014 he returned to the Moscow University as a faculty member at the Faculty of Mechanics and Mathematics. There, he led a research group focused on the investigation of free-surface viscous flows, their stability, and wavy flow regimes. In 2022, he repatriated to Israel, where, after a three-month appointment as a visiting scientist at the Weizmann Institute of Science, he joined the School of Mechanical Engineering at Tel Aviv University as a researcher. The lecture presents an overview of research carried out at both Moscow and Tel Aviv Universities.

ד"ר רונן וורקר

דר' רונן וורקר

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