Proceedings of the 7th Edoardo Amaldi Conference on Gravitational Waves (Amaldi7), Sydney Convention and Exhibition Centre, Darling Harbour, Sydney, Australia, 8–14 July 2007

At GRG17 in Dublin in 2004, it was decided to hold GRG18 in Sydney in 2007. Every six years, the GRG conference (held every three years) and Amaldi meeting (held every two years) occur in the same year around July. This was to be the case in 2007. By mutual agreement of the International Society on General Relativity and Gravitation (ISGRG), which oversees the GR conferences and The Gravitational Wave International Committee (GWIC), which oversees the Amaldi meetings, it was decided to hold these two important conferences concurrently, for the first time, at the same venue, namely Sydney. At a time when the gravitational wave community was beginning to explore the possibility of searches to probe various aspects of the theory, the vision was to bring that community together with the community of gravitational theorists in order to better appreciate the work being done by both parties and to explore possibilities for future research using the mutual expertise.The logistics of running two such large meetings concurrently were considerable. The format agreed upon by the ISGRG and GWIC was the following: common plenary sessions in the mornings from Monday to Friday; six parallel GR workshop sessions and an Amaldi session each afternoon from Monday to Friday (except Wednesday); a combined poster session on Wednesday; a full day of Amaldi sessions on the final day (Saturday). The scientific programme for GRG18 was overseen by a Scientific Organising Committee established by the ISGRG and chaired by Professor Sathyaprakash. The scientific programme for Amaldi7 was overseen by GWIC chaired by Professor Cerdonio.One of the highlights of the conferences was the breadth and quality of the plenary programme put together by the scientific committees. Not only did these talks give an excellent snapshot of the entire field at this time, but they also explored the interfaces with other related fields, which proved of special interest to participants. We were given superb overviews of the state of the art of: observational handles on dark energy; collider physics experiments designed to probe cosmology; gravitational dynamics of large stellar systems; and the use of analogue condensed-matter systems in the laboratory to investigate black hole event horizons. In the more mainstream areas we were given timely reviews of: the Gravity Probe B and STEP missions; quasi-local black hole horizons and their applications; cosmic censorship; the spin foam model approach to quantum gravity; the causal dynamical triangulations approach to quantum gravity; superstring theory applied to questions in particle physics; the current status and prospects for gravitational wave astronomy; ground-based gravitational wave detection; and technological developments for the future LISA mission.This issue is published as the proceedings of GRG18 and Amaldi7. It contains the overview articles by the plenary speakers, the summaries of each GRG18 workshop parallel session as provided by the workshop chairs, and the highlights of the Amaldi7 meeting as selected by the Amaldi7 chairs. Other Amaldi7 talks and posters will appear as articles in a refereed issue of the electronic Journal of Physics Conference Series. This CQG special issue and the related issue of JPCS will be electronically linked.The conference organisers would like to acknowledge the financial support of: The Australian National University; IUPAP; The Australian Institute of Physics; BHP Billiton; The University of Western Australia; The University of New South Wales; The Institute of Physics; The Gravity Research Foundation; SGI; CosNet; The Australian Mathematical Sciences Institute; Springer; Duraduct; the New South Wales Government; The Australasian Society for General Relativity and Gravitation; the Mexican GR bid; the Centre for Precision Optics; The Anglo-Australian Observatory; Newspec; CSIRO; and The University of Melbourne.We would like to thank the GRG18 Scientific Organising Committee, GWIC and the Local Organising Committee for all their hard work in putting together these very successful combined conferences, which attracted 520 participants. Many of the practical aspects of the organisation were handled by the event management company Conexion, and their professionalism, expertise and dedication were greatly appreciated. We would also like to thank the editorial staff at CQG, especially Eirini Messaritaki and Joseph Tennant, for their support and efficiency in preparing this issue. Finally, we would like to thank all the participants for their lively and colourful contributions to making these conferences a success.

The sixth International Conference on Gravitation & Cosmology (ICGC-2007) was organized at IUCAA, Pune, 17–21 December 2007. This series of international meetings, held every four years under the auspices of the Indian Association for General Relativity and Gravitation (IAGRG), has now spanned two decades. Previous ICGC meetings were held at Cochin University of Science and Technology (2004), Indian Institute of Technology, Kharagpur (2000), IUCAA, Pune (1995), Physical Research Laboratory, Ahmedabad (1991) & Goa (1987). These meetings have broad international participation and feature leading experts in the field of Cosmology, gravitational waves and quantum gravity.

An exciting time for gravitational wave astronomy

In June 2006 the LISA International Science Team (LIST) accepted the bidpresented by the Institut d'Estudis Espacials de Catalunya (IEEC) to host the 7th International LISA Symposium. This was during its 11th meeting at the University of Maryland, just before the 6th edition of the symposium started at NASA's Goddard Space Flight Center.The 7th International LISA Symposium took place in the city of Barcelona,Spain, 16–20 June, 2008, in the premises of CosmoCaixa, amodern science museum located in the hills near Tibidabo. Almost 240delegates registered for the event, a record breaking figure compared toprevious editions of the symposium. Many of the most renowned worldexperts in LISA, gravitational wave science, and astronomy, as well asengineers, attended LISA #7 and produced state of the art presentations,while everybody benefited from the opportunity to have live discussionsduring the week in a friendly environment.The programme included 31 invited plenary lectures in the mornings, andeight parallel sessions in the afternoons. These were classified into sevenmajor areas of research: LISA Technology, LISA PathFinder, LISA PathFinderData Analysis, LISA Data Analysis, Gravitational Wave Sources, Cosmologyand Fundamental Physics with LISA and Other Gravitational Wave Detectors. s for 138 communications were received, from which a selection wasmade by the session convenors which would fit time constraints. Up to 63posters completed the scientific programme. More details on the programme,including some of the talks, can be found at the symposium website:http://www.ice.cat/research/LISA_Symposium.There was, however, a remarkable add-on: Professor Clifford Will delivereda startling presentation to the general public, who completely filled the Auditori—the main conference room, 320 seats—and were invitedto ask questions to the speaker who boldly guided them through thedaunting world of Black Holes, Waves of Gravity, and other WarpedIdeas of Dr Einstein.The Proceedings of the 7th International LISA Symposium are jointlypublished by the journal Classical and Quantum Gravity (CQG) andthe Journal of Physics: Conference Series (JPCS). This formulahas a precedent in the last Amaldi Conference (Sydney 2007),and was motivated by the impossibility to include all communicationsinto a single CQG volume. Plenary speakers were invited to submittheir contributions to CQG, as were a number of parallel sessionauthors chosen by the session convenors and the Science OrganisingCommittee (SOC). Authors of the other parallel session presentationsand posters were invited to submit to JPCS. All papers have been peer-reviewedprior to being accepted for publication in either journal, and thewhole set is a good representation of the talks we heard during thesymposium.Thanks are accordingly due to all of the authors for their collaborativeattitude and, more generally, to all of the delegates who came to Barcelonaand made the symposium a first-class scientific event. The LISAcommunity has been steadily growing since the symposium launched inChilton, near Oxford (UK), back in 1996. The support of such communitystrongly endorses a complex mission project, whose short term futurerequires such support for a much longer term new era of gravitational waveastronomy and fundamental physics. In this sense, the number of attendees and their active interest in the LISA mission sparks optimism.The 7th International LISA Symposium sponsors are also sincerelyacknowledged. They are: the Albert Einstein Institute (Hannover), theSpanish Ministry of Science and Innovation, the Generalitat de Catalunya(AGAUR), the Barcelona Institute of High Energy Physics (IFAE), theUniversity of Barcelona (UB), the Polytechnique University ofCatalunya (UPC), the Spanish Society of General Relativity andGravitation (SEGRE), CosmoCaixa, NASA and the European Space Agency(ESA). The latter provided the LISA PathFinder model, a 1:4 scale model whose primer display we enjoyed during the symposium.Finally, the local organising committee (LOC) and the IEEC staff have giventheir enthusiastic support to the organization in every detail, and haveworked efficiently for months to make the symposium happen. Many thanksto all of them, and congratulations.This is a co-publication with Journal of Physics Conference Series. A selection of papers are published in this issue of Classical and Quantum Gravity with the bulk of the papers, after peer review, published in Journal of Physics: Conference Series. Alberto Lobo and Carlos F Sopuerta Institut de Ciències de l'Espai (CSIC-IEEC) Guest Editors

In June 2006 the LISA International Science Team (LIST) accepted the bidpresented by the Institut d'Estudis Espacials de Catalunya (IEEC) to host the 7th International LISA Symposium. This was during its 11th meeting at the University of Maryland, just before the 6th edition of the Symposium started in NASA's Goddard Space Flight Center.The 7th International LISA Symposium took place at the city of Barcelona,Spain, from 16–20 June 2008, in the premises of CosmoCaixa, amodern Science Museum located in the hills near Tibidabo. Almost 240delegates registered for the event, a record breaking figure compared toprevious editions of the Symposium. Many of the most renowned worldexperts in LISA, Gravitational Wave Science, and Astronomy, as well asEngineers, attended LISA 7 and produced state-of-the-art presentations,while everybody benefited from the opportunity to have live discussionsduring the week in a friendly environment.The programme included 31 invited plenary lectures in the mornings, and8 parallel sessions in the afternoons. These were classified into 7major areas of research: LISA Technology, LISA PathFinder, LISA PathFinderData Analysis, LISA Data Analysis, Gravitational Wave sources, Cosmologyand Fundamental Physics with LISA and Other Gravitational Wave Detectors.138 abstracts for communications were received, of which a selection wasmade by the session convenors which would fit time constraints. Up to 63posters completed the scientific programme. More details on the programme,including some of the talks, can be found at the Symposium website: http://www.ice.cat/research/LISA_Symposium.There was however a remarkable add-on: Professor Clifford Will delivereda startling presentation to the general public, who completely filled the Auditori—the main Conference Room, 320 seats—and were invitedto ask questions to the speaker who had boldly guided them through thedaunting world of Black Holes, Waves of Gravity, and other WarpedIdeas of Dr Einstein.The Proceedings of the 7th International LISA Symposium are jointlypublished by Classical and Quantum Gravity (CQG) and Journal of Physics: Conference Series (JPCS). This formulahas a precedent in the last Amaldi Conference (Sydney 2007),and was motivated by the impossibility to fit all communicationsinto a single CQG volume. Plenary speakers were invited to submittheir contributions to CQG, and so were a number of parallel sessionauthors chosen by the session convenors and the Science OrganisingCommittee (SOC). Authors of the other parallel session presentationsand posters were invited to submit to JPCS. All papers have been peer reviwedprior to being accepted for publication in either journal, and thewhole set is well representative of the talks we heard during theSymposium.Thanks are accordingly due to all authors for their collaborativeattitude and, more generally, to all delegates who came to Barcelonaand made of the Symposium a first class scientific event. The LISAcommunity has been steadily growing since the Symposium took off inChilton, near Oxford (UK) back in 1996. The support of such communitystrongly endorses a complex mission Project, whose short term futurerequires such support for a much longer term new era of Gravitational WaveAstronomy and Fundamental Physics. In this sense, the number of attendees and their active interest in the LISA mission sparks optimism.The 7th International LISA Symposium sponsors are also sincerelyacknowldged. They are: the Albert Einstein Institute (Hannover), theSpanish Ministry of Science and Innovation, the Generalitat de Catalunya(AGAUR), the Barcelona Institute of High Energy Physics (IFAE), theUniversity of Barcelona (UB), the Polytechnique University ofCatalunya (UPC), the Spanish Society of General Relativity andGravitation (SEGRE), CosmoCaixa, NASA and the European Space Agency(ESA). The latter provided the LISA PathFinder model, a 1:4 scale model whose primer display we enjoyed during the Symposium.Finally, the Local Organising Committee and the IEEC staff have giventheir enthusiastic support to the organisation in every detail, and haveefficiently worked for months to make the Symposium happen. Many thanksto all of them, and congratulations. Alberto Lobo and Carlos F Sopuerta Institut de Ciències de l'Espai (CSIC-IEEC) Guest Editors

<p indent="0mm">The direct detection of gravitational waves from stellar-mass compact binary merger by ground-based laser interferometer gravitational wave detector LIGO/Virgo has verified the prediction of general relativity and opened a new chapter in gravitational wave astronomy. Up to now, a total of 50 gravitational wave events have been detected and published in GWTC-1 and GWTC-2 catalogue. In the near future, the third-generation ground based gravitational wave detector, such as the Einstein Telescope (ET), will be constructed with sensitivity improved by at least a factor of 10. Tens of thousands of gravitational wave signals are expected to be detected per year in the third-generation detector era. These gravitational wave signals will inevitably overlap with foreground massive celestial bodies (such as black hole, galaxy and galaxy cluster), thus leading to lensed gravitational wave signals which will undoubtedly be another important test of general relativity once detected. Furthermore, strongly lensed gravitational wave signals by galaxy from massive binary black hole could possibly be detected by future space detector, e.g., LISA and DECIGO. Since the wavelengths of gravitational waves are comparable with the size of some lens, the lensed gravitational waves play a unique role in studying the phenomena of wave nature, e.g., interference and diffraction. Lensed gravitational wave-electromagnetic wave system will have a wide range of applications in fundamental physics, cosmology and astrophysics when a series of lensed gravitational wave events and their corresponding electromagnetic counterparts have been detected. The most obvious advantage of lensed gravitational wave-electromagnetic wave system lies in that gravitational wave could provide time delay information with high accuracy, and electromagnetic wave could provide Fermat potential difference with high precision because a relatively complete arc of light could be obtained by electromagnetic wave observations and this is the most important step in measuring the Fermat potential. Thus, by combining the information from both approaches, lensed gravitational wave-electromagnetic wave system could be applied to study the speed of gravitational waves, constrain cosmological parameters, explore the substructure of the dark matter halo and investigate the lens model and so on. In this paper, we will review in detail how to use geodesic equation, lens equation, as well as wave equation to tackle the stationary scattering problem of lensed gravitational waves, and introduce how lensed gravitational wave-electromagnetic wave system could be applied to study the tensor properties, interference and diffraction effects of gravitational wave, as well as its applications in gravitational wave velocity, Hubble constant, cosmic curvature, lens mass, substructure and so on.

This special issue of Classical and Quantum Gravity constitutes the proceedings of the 4th Edoardo Amaldi Conference on Gravitational Waves held in Perth, Western Australia in July 2001. The field of gravitational wave detection has been slowly emerging since the pioneering experiments of Joseph Weber more than 30 years ago alerted the world to the possibility of actual detection of gravitational waves. The funding of kilometre scale interferometers and the planning of million kilometre scale space interferometers has grown the field of gravitational wave detection to a size where major review meetings are essential to obtain an overview of the field.

École Nationale Supérieure de Chimie de Paris, ParisTech, France 7-10 December 2021 Smart nanomaterials are the basis of diverse emerging applications, including wearable and printed electronics, flexible optoelectronics, CMOS photonics, quantum computing, smart coatings and thin films. This collection focuses on the most recent scientific and technological advances, innovations and new practical applications of novel smart nanomaterials presented at the 4th Smart Nanomaterials Conference, SNAIA 2021. It covers topics ranging from advances in the most critical aspects in chemistry and material fabrication of nanomaterials, to the engineering of prototype devices and systems.List of Scientific Committee, Organising Committee, Editorial Board, Plenary Speakers, Keynote Speakers and Invited Speakers are available in this pdf.

The XXXth International Colloquium on Group Theoretical Methods in Physics (ICGTMP), also known as the Group30 conference, took place in Ghent (Belgium) from Monday 14 to Friday 18 July 2014. The conference was organised by Ghent University (Department of Applied Mathematics, Computer Science and Statistics, and Department of Mathematical Analysis). The website http://www.group30.ugent.be is still available.

The 18th Siam Physics Congress (SPC2023) was successfully held during 14–16 June 2023, co-hosted by the Thai Physics Society and the Chiang Mai University. To motivate collaborative academic environment, the congress was organized to be a 100% on-site meeting at the Empress Convention Center in Chiang Mai (Thailand).This year, we had 329 research abstracts submitted for both oral and poster presentations. There were 3 plenary speakers, 17 invited speakers, 110 accepted oral presentations, 187 accepted poster presentations, and 116 full papers submitted for possible publication in all 10 tracks(topics). The scientific program was announced on the SPC2023 website (https://spc2023.science.cmu.ac.th) and also distributed via email to all participants.The opening ceremony was given by the President of Thai Physics Society and the President of Association of Asia Pacific Physical Societies (AAPPS). After opening ceremony, Prof. Dr. Junichi Yokoyama (The University of Tokyo, Japan) gave the 1st plenary talk (onsite), Prof. Dr. Jian-Wei Pan (University of Science and Technology of China) gave this 2nd plenary talk (zoom), Assoc. Prof. Dr. Tawatchai Onjun (Thailand Institute of Nuclear Technology) gave the 3rd plenary talk (onsite), where the size of the audience attending the plenary talks is approximately 500 participants. The oral presentations were arranged into 5 parallel rooms in total of 10 sessions. Each invited speaker was allowed 30-minutes presentation while regular presenter had 15 minutes including questions and answers. The audience-size of each room varied between 30 and 50 people. The poster presentations were held in the poster hall and lasted for 2 hours, which offered extended opportunity to gain insights into the latest research. For full papers, authors of accepted abstracts were invited to submit their full-scale works through the Morressier website for a possible publication in the Journal of Physics : Conference Series.List of Topic, Plenary Speaker, Organizing Institutions, Advisory Committee, Organizing Committee, Scientific Committee, Ceremony Committee, Finance Committee, Registration Committee, Venue and Transportation Committee, Sponsorship and Fundraising Committee, Public Relations Committee, Audio Visual Aid Committee, Sponsors are available in this Pdf.

In this thesis we examine several ways in which we can explore the early universe through gravitational-waves and the fundamental nature of gravity through cosmology and observations of dynamics within the solar system. Both of these topics have taken center stage, as we are living at a unique time which promises to bring fundamental insights into the nature of gravity with the discovery of new binary pulsar systems, the building of increasingly precise solar system and tabletop experiments and the birth of gravitational-wave observatories-- to name a few recent and upcoming advances. We first discuss whether we may be able to directly detect gravitational waves from inflation using future space-based interferometers. We then describe how the direct detection of inflationary gravitational waves will allow us to probe the fundamental physics that operated at the earliest moments of the universe. Next, a new constraint to a general cosmological gravitational wave background is presented using the observations of the cosmic microwave background. Moving away from general relativity, we consider alternative theories of gravity. One reason to consider alternative theories of gravity is the observation that the expansion of the universe is currently accelerating. It is possible that this accelerated expansion is due to a modification of gravity. However, any theory that modifies gravity in order to produce accelerated expansion must also conform to the dynamics that we observe within the Solar System. We discuss how the observation of the deflection of light around the Sun places severe limitations on a particular modified gravity theory, known as f(R) gravity. Our discussion of f(R) gravity leads us to ask whether the parameterized post Newtonian parameter, γPPN, takes on a universal value. We identify measurements made of strong lensing around early type galaxies in the Sloan Lens ACS (SLACS) survey as a first step in performing this new test of gravity. Finally, we explore some consequences of Chern-Simons gravity. One of the unique aspects of Chern-Simons gravity is that it introduces parity violation into the gravitational sector. As a consequence, it predicts a different gravitomagnetic field around the rotating Earth than is predicted in general relativity. We show how recent measurements of this gravitomagnetic field made by observing the two LAser GEOdynamics Satellites (LAGEOS) and Gravity Probe B satellites constrain Chern-Simons gravity. Finally, we discuss how future observations of binary pulsar systems may allow for a more general exploration of the gravitomagnetic structure around rotating objects.

Strong gravitational lensing by galaxies provides us with a unique opportunity to understand the nature of gravity on galactic and extra-galactic scales. In this paper, we propose a new multimessenger approach using data from both the gravitational wave (GW) and the corresponding electromagnetic (EM) counterpart to infer the constraint of the modified gravity (MG) theory denoted by the scale dependent phenomenological parameter. To demonstrate the robustness of this approach, we calculate the time-delay predictions by choosing various values of the phenomenological parameters and then compare them with that from general relativity (GR). For the third generation ground-based GW observatory, with one typical strongly lensed GW+EM event, and assuming that the dominated error from the stellar velocity dispersions is 5%, the GW time-delay data can distinguish an 18% MG effect on a scale of tens of kiloparsecs with a 68% confidence level. Assuming GR and a Singular Isothermal Sphere mass model, there exists a simplified consistency relationship between time-delay and imaging data. This relationship does not require the velocity dispersion measurement, and hence can avoid major uncertainties. By using this relationship, the multimessenger approach is able to distinguish an 8% MG effect. Our results show that the GW multimessenger approach can play an important role in revealing the nature of gravity on galactic and extra-galactic scales.

19–20 September 2022, Penang, MalaysiaThe Photonics Meeting is an annual event organized by the Optical Society of Malaysia (OSM) in celebrating UNESCO International Day of Light. For this year, the 5th Photonics Meeting 2022 (PM22) was held on 19th and 20th of September 2022 in collaboration with Universiti Sains Malaysia. PM22 with the theme “Exploring photonics breakthrough for humanity” has attracted 26 contributors that covers various topics on photonics including optical materials, laser physics, fiber optics and colorimetry. PM22 has been honoured with presentation from world renowned scientists from industry as well as international research laboratory and universities as the plenary and keynote speakers. PM22 would like to extend its great appreciation to all the committee members who have work diligently to ensure the smooth deliverance of this scientific event. Due to the Covid19 pandemic, the conference was fully conducted virtually through Cisco Webex platform hosted by School of Physics, Universiti Sains Malaysia. Each participant was given 10 minutes for their presentation and another 5 minutes for question and answer session. All submission has been thoroughly reviewed by the experts in the respective field and presented in this volume of Journal of Physics: Conference Series.List of Editors, Keynote Speaker, Plenary Speaker, Organizing Committee are available in this Pdf.

Conference abstracts are essential components of academic studies as potential participants decide to attend the session based on what they get from the content of the abstracts. However, conference abstract writing has received relatively less attention compared to research article and thesis abstracts. Representing and summarizing the whole presentation in a limited space requires competence.&amp;nbsp; In writing a conference abstract, one should take an academic speaking position by claiming significance, credibility and novelty. In academic conferences, there are two or three invited plenary speakers who are very experienced, full -fledged academics and in the concurrent sessions, many novice researchers who are often at the very beginning of their academic studies. Novice researchers’ abstracts are being assessed by scientific committees while plenary speakers’ abstracts are exempt from this review process. Academics, whether they are experienced or novice, make use of lexical hedging&amp;nbsp; and boosting strategies that show their degree of confidence in the truth of their statements but also reveal their opinions and attitudes to the reader. In this small scale study, 10 plenary speakers’ conference abstracts and 10 novice researchers’ conference abstracts are chosen randomly from different conferences and the aim is to analyze if there is any variation between plenary speakers’ conference abstracts and novice researchers’ conference abstracts in the use of hedging and boosting strategies with regard to frequency counts on lexical bases.&amp;nbsp;

The 37th UIT Heat Transfer Conference was organized by the Department of Industrial Engineering at University of Padova (Italy) and held at Centro Linguistico di Ateneo, Padova, on June 24-26, 2019.The annual UIT Conference, which has grown over time, was held in Padova for the first time since the foundation of this conference.The scope of the conference covers a range of many topics in theoretical, numerical and experimental heat transfer and related areas, ranging from energy efficiency to nuclear plants. This time the UIT Conference included an International Symposium on “Refrigerants: heat transfer and applications”. This Symposium was held on June 26, 2019, which was the first World Refrigeration Day, and was organized in collaboration with CNR, Istituto per le Tecnologie della Costruzione.In this conference edition, 99 papers were contributed plus three keynote lectures. The keynote lectures were given by Srinivas Garimella (Georgia Institute of Technology, USA), Alberto Cavallini (Emeritus professor at University of Padova) and Enrico Nobile (University of Trieste). For the Symposium on Refrigerants, invited lectures were given by Pega Hrnjak (University of Illinois at Urbana-Champaign, USA), Bjorn Palm (Royal Institute of Technology, Sweden), Petter Neksa (Norwegian University of Science and Technology, Norway) and José Miguel Corberan (Universidad Politecnica de Valencia, Spain).These proceedings collects two keynote lectures and 58 papers selected from those presented and discussed during the Conference.The conference was an important occasion to stimulate discussion, improve the understanding of heat transfer and related phenomena, present the state of the art of some topics, discuss emerging trends and promote collaborations.A special thank is due to the Organizing and Scientific Committees, to the Sponsors, to the Reviewers of the papers and to all the Participants.Davide Del Col, Luisa Rossetto and Stefano Bortolin - Editors List of Scientific Committee, Organizing Committee and Sponsors are available in this PDF.