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主持会议的开场白和结束语在传达信息、凝聚氛围和感谢参与者方面都非常重要。
以下是一些常见的主持会议的英语开场白和结束语范例：开场白（Opening Remarks）：1. 欢迎词（Welcome Speech）：- Ladies and gentlemen, I would like to extend a warm welcome to each and every one of you. Thank you for joining us today.（女士们先生们，我要向大家表示热烈的欢迎。
感谢您们今天的参与。
）2. 会议目的（Purpose of the Meeting）：- The purpose of today's meeting is to discuss [briefly describe the main agenda or topics]. We have gathered here to [mention the goals or objectives].（今天的会议目的是讨论[简要描述主要议程或话题]。
我们聚集在这里是为了[提及目标或目的]。
）3. 议程提要（Agenda Overview）：- Let's take a moment to go through the agenda for today. We will cover [list the agenda items] in our discussions.（让我们花一点时间回顾今天的议程。
在我们的讨论中，我们将涵盖[列出议程项目]。
）4. 规则和时间安排（Rules and Timings）：- Please note that we aim to keep the meeting on track and within the scheduledtime. Each speaker will have [mention the time limit] for their presentation.（请注意，我们的目标是保持会议按计划进行，并在预定的时间内完成。
The Draft of Academic Presentation国际会议的口头报告模板，每页ppt你需要讲什么东西需要分页详细写，尽量口语化，如下是本人参加比利时会议的模板，供大家参考。
P1开场白：I am so honored to be with you to communicate academic questions and ideas.The tile of my academic presentation is “The preparation and catalytic performance of porous silica nanotube functioned with heteroatoms”I shall only take ten minutes of your time.I will talk about the topic on the preparation of porous materials.P2First of all, i wanna introduce myself. I come from nanjing university of technology, nanjing city, china.P3The content is listed as follows.P4All our researches are conducted by the academic thoughts. Generally speaking, we are committed to porous materials. In order to explore high-performance functionalized materials for Pilot?experiments and scale-up?production; we tune the structure, such as composition and morphology step by step and optimize them further. What’s more, the possible synthesis mechanisms are also investigated. Today, the presentation is based on the right-hand branch.P5It is known that mesoporous silica have excellent characters as the catalyst carrier, such as……..But due to lack of active sites, we have to introduce organic or inorganic species as active sites. And the catalytic performance need to be further improved.P6As we know, the three factors including activity, scale and diffusion factor play decisive role in the catalysis, affecting the yield, selectivity, stability strongly. In our presentation, we mainly focus on the influence of scale factor on the catalysis.P7Due to lack of active sites for mesoporous silica, two main methods (surface loading, modified framework) are widely reported, by which various organic or inorganic active sites can be immobilized on the surface or incorporated into the framework of mesopoous silica.P8Though various morphologies of mesoporos silica were widely synthesized, the synthesis of the mesoporos silica, with three simultaneous characteristics including doped metal, mesoporous structure and specific morphology, is always a challenge, which is rarely reported.In other words, for our case exploring a proper condition, at which the silicon and metal sources can simultaneously hydrolyze, can ensure a desired material.P9Next, let’s look at the synthetic steps. Firstly,…. Then, …. After that, …. At last, we obtained the products.P10In this work, by changing the synthesis conditions, such as …, and so on, the pure mesoporous silica with different morphologies were synthesized, including nanosphere, nanorod, helix, capsule and nanotube. We will focus on the preparation and catalytic application of mesoporous silica with nanotube morphology.P11the SEM images of samples: A1, A2, A3 are shown in the figure. It can be seen that sample a1 is nanowire-like with length of about 2μm and diameter of about 100nm. When the amount of ... is 0.04 g, the morphology of sample A2 became to be short and thick rods and the size is about 1μm in length and 400nm in diameter, respectively. With further increasing the amount of ..., the sample A3 and A4 turned to be spherical morphology. It also can be seen that the diameters of samples A3 and A4 are substantially the same about 450nm. However, the spherical morphology of A4 is more regular than that of A3.The XRD patterns showed four reflection peaks attributed to (100), (110), (200) and (210), respectively, due to the hexagonal sructure.P12Then, we keep the same amount of ..., increasing the amount of ....We found that the length increased gradually. The XRD patterns also showed the hexagonal sructure of samples B1, B2, B3, B4.P13Moreover, an additional proof of the hexagonal symmetry structure is given by TEM and the FT pattern. The N2adsorption-desorption isotherms of the samples B1, B2, B3, B4 exhibit a typical type-IV isotherm.According to the table of structural parameters, we can find that the specific surface area and total pore volume increase gradually, the thickness of wall decrease and there is no obvious change in diameter.P14Furthermore, the possible synthesis mechanism of the mesoporous silica nanotube in dual templates system was proposed. We suggest that due to electrostatic repulsion between positively charged ammonium ions from hydrated ammonia molecules and hydrophilic groups of ..., especially in ammonia (NH3, 25wt.%) solution, the high concentrated ammonium ions provide a crowded and repulsive space to prevent the conjunction of ... molecules, leading to the formation of the rod-like micelles as template to form pore structure instead of sphere-like ones.The role of co-template ... is suggested to tune the length of rod-like micelles by arranging itself along the axis of channel with PEO and PPO part immersed in the hydrophilic and the hydrophobic group of CTA+ respectively. As a result, the mesoporous nanotube with different length will be synthesized. However, the non-polar ... micelles are not affected by positively charged ammonium. When the amount of co-template increased further, the non-polar ... micelles tend to control the morphology of micelles which are sequentially from nanotube, short rod to sphere-like ones. It my be the reason that the non-polar ... micelles would provide stronger attractive force than the electrostatic repulsion derived from the PEO block, ammonium ions and head group of ..., respectively.P15In order to investigate the influence of the morphology and structure of mesoporous silica on catalytic performance, the samples with copper incorporated were synthesized.P16The figure shows the SEM and TEM images of samples a1, a2, a3, from which we can see they represent incremental length in the range of about 0.5, 1.0 and 1.5μm, and insignificant change in diameter around100nm. In XRD patterns, there are also four reflection peaks for the samples with copper incorprated, respectively, which indicates the incorporation of the inorganic copper salt has no obvious effect on the hexagonal sructure and the ordered degree of pore structure. Moreover, the trends in length and the diameter of nanotube are illustrated.P17The N2adsorption-desorption isotherms of the samples a1, a2, a3 exhibit a typical type-IV isotherm according to the IUPAC classification and no hysteresis loop at the relative pressure range of 0.2≤p/p0≤0.4, implying the samples not only have ordered mesoporous structure but also the uniform pore size. Moreover, the pore diameters did not change significantly at different weight ratio of .../.... The most probable pore sizes of samples a1, a2, a3 are determined to be 2.71, 2.50, 2.44 nm, respectively. The structural parameters are listed in following table.P18This table summarized the catalytic activity of copper-modified porous silica nanotube in the direct hydroxylation of benzene with H2O2 as oxidant. The catalysts showed high catalytic activity, and direct proportional relationship between the benzene conversion and the length of the silica nanotube. Considering the similar copper content determined by ICP, the variations of catalytic activities were probably caused by different retention time of reagent in the nanotube with different lengths.P19It is Summary and Future ResearchThis part of research can be summed up from the following three aspects.Mophology control,Catalytic activity and Future research看this slide.P20thanks。
Ladies and Gentlemen,Good morning/afternoon/evening. It is a great honor to stand before you today at this esteemed international conference. I am here to discuss a topic that is not only critical to our present but also to the future of our planet – the role of sustainable development in building aresilient future.As we gather here from different corners of the world, it is evidentthat we are all facing common challenges that require our collective efforts to address. Climate change, environmental degradation, economic disparities, and social inequalities are some of the pressing issuesthat we need to tackle head-on. Sustainable development, as a holistic approach, offers a promising solution to these challenges.Let me begin by defining what sustainable development is. According to the Brundtland Commission, sustainable development is "development that meets the needs of the present without compromising the ability offuture generations to meet their own needs." This definition encapsulates the essence of sustainable development, which is not just about economic growth but also about social progress and environmental stewardship.The Need for Sustainable DevelopmentThe world is currently facing a triple planetary crisis – climate change, biodiversity loss, and pollution. These crises are interconnected and have far-reaching impacts on our planet and its inhabitants. For instance, climate change is causing extreme weather events, sea-level rise, and habitat loss, which in turn affect food security, water availability, and human health. Biodiversity loss is leading to the extinction of species, which disrupts ecosystems and reduces their resilience to environmental changes. Pollution, whether in the form of air, water, or soil pollution, poses significant risks to human health and ecosystems.These crises underscore the urgency for a transformative shift towards sustainable development. It is not enough to address these challenges inisolation; we need a systemic approach that integrates economic, social, and environmental considerations. By focusing on sustainable development, we can create a more resilient future for all.Economic Dimensions of Sustainable DevelopmentEconomic growth has been the primary driver of human progress over the past few centuries. However, the traditional model of economic growthhas come at a significant cost to our planet. It has led to resource depletion, environmental degradation, and social inequalities. Sustainable development offers an alternative economic model that promotes inclusive growth, resource efficiency, and innovation.Investing in renewable energy, sustainable agriculture, and green technology can create new jobs and stimulate economic growth. These sectors have the potential to become major engines of economic development in the coming decades. Additionally, sustainable development can help reduce poverty and improve living standards by ensuring thatthe benefits of economic growth are shared more equitably.Social Dimensions of Sustainable DevelopmentThe social dimension of sustainable development is equally important. It is about ensuring that all people have access to basic services, such as education, healthcare, and clean water. It is about promoting gender equality, social justice, and cultural diversity. It is also about empowering communities to participate in decision-making processes that affect their lives.Sustainable development can help bridge the gap between rich and poor by providing opportunities for education and skills training. It can also promote social cohesion and resilience by fostering a sense of community and collective action. By addressing social inequalities, we can create a more just and equitable world.Environmental Dimensions of Sustainable DevelopmentThe environmental dimension of sustainable development is aboutprotecting and restoring our natural resources and ecosystems. It isabout reducing our ecological footprint and ensuring that our actions do not harm the planet. This dimension recognizes that our well-being is intricately linked to the health of our environment.Conserving biodiversity, mitigating climate change, and addressing pollution are some of the key environmental challenges we face. Sustainable development calls for the adoption of environmentally friendly practices, such as sustainable agriculture, green building, and renewable energy. It also requires international cooperation to address transboundary environmental issues.The Path to Sustainable DevelopmentAchieving sustainable development requires a multi-faceted approach that involves governments, businesses, civil society, and individuals. Here are some key steps that can be taken:1. Strengthening international cooperation and adopting global agreements, such as the Paris Agreement and the Sustainable Development Goals (SDGs).2. Investing in research and development to promote innovation and technology transfer.3. Implementing policies and regulations that incentivize sustainable practices and discourage harmful activities.4. Promoting education and awareness to change behaviors and attitudes towards sustainability.5. Encouraging corporate responsibility and ethical business practices.6. Engaging with local communities and indigenous peoples to ensure that their rights and knowledge are respected.ConclusionIn conclusion, sustainable development is not a luxury but a necessity for building a resilient future. It is a journey that requires our collective efforts, commitment, and determination. By embracingsustainable development, we can create a world that is economically prosperous, socially just, and environmentally sustainable.Thank you for your attention. I look forward to engaging in a meaningful discussion with you and exploring ways in which we can work together to make sustainable development a reality. Let us not underestimate the power of our collective actions. Together, we can shape a future that is bright, equitable, and sustainable for all.。
国际会议开幕词英文模板International Conference Opening Ceremony Speech Template.Good morning/afternoon/evening, distinguished guests, ladies and gentlemen.It is a moment of great privilege and honor for me to stand here and welcome you all to the opening ceremony of our esteemed international conference. On behalf of the organizing committee and our host institution, I extend a warm and heartfelt greeting to each and every one of you. Your presence here is not just an attendance at a conference, but a testament to your dedication, expertise, and commitment to the cause we are gathered to discuss.Today, we are gathered under the theme of [Insert Conference Theme]. This theme encapsulates the breadth and depth of our discussions, spanning across various fields of [Insert Relevant Fields, e.g., Science, Technology,Education, etc.]. Our goal is to provide a platform where ideas can collide, perspectives can intersect, andsolutions can emerge.Our conference aims to achieve two primary objectives. Firstly, it strives to create a forum where experts from diverse backgrounds can share their knowledge, experiences, and insights. Secondly, it aims to foster collaborations and partnerships that can lead to innovative solutions and advancements in our chosen field.Over the course of the next few days, we will delveinto a range of topics, discussing the latest research, developments, and challenges. I am confident that the discussions and interactions here will be both enlightening and transformative.As we embark on this journey of discovery and learning, I would like to emphasize the importance of open minds and respectful dialogue. Let us approach each other's ideas with curiosity and an open heart, always ready to listen, learn, and grow.In conclusion, I would like to once again express my heartfelt gratitude to all the participants, speakers, sponsors, and volunteers who have made this conference possible. Your support and dedication are what make our efforts worthwhile.I am confident that together, we will make this international conference a resounding success. Let us embark on this exciting journey together, learning from each other, inspiring each other, and working towards a better tomorrow.Thank you all for being here. I wish you a fruitful and enjoyable stay at our conference. Let's get started!。
国际会议英文开幕词Ladies and Gentlemen, Distinguished Guests, and Dear Colleagues,I encourage all of you to engage actively in the conference proceedings, to network with fellow participants, and to embrace the diversity of opinions and perspectivesthat make our gathering so unique. Together, we can learn from one another and work towards a brighter future for all.The Theme and VisionThe Program HighlightsThe Importance of NetworkingOur Commitment to InclusivityClosing ThoughtsBefore we embark on this journey of discovery and learning, I would like to remind you that each one of you is an integral part of this conference's success. Your presence, your contributions, and your engagement are what will make this event memorable.Thank you once again for joining us. Let the conference begin!The Power of ExchangeAs we dive into the heart of this conference, let us reflect on the transformative power of exchange. It isthrough the sharing of our experiences, our research, and our insights that we can paint a richer, more vibrant picture of our world. This gathering is not just about disseminating information; it is about creating a tapestry of ideas that weaves together the fabric of our collective knowledge.The Role of TechnologyThe Legacy We Aim to LeaveSupport and ResourcesThe Role of Our SponsorsFinal WordsAs we stand on the precipice of what promises to be an extraordinary few days, I would like to leave you with a simple yet profound thought: the power to effect change is within each of us. Let us use this conference as a catalyst to ignite our passion, to challenge our assumptions, and to move forward with a shared vision of a better tomorrow.。
