生态系统

Search documents
筑牢湿地生态屏障,强化生态敏感区新污染物管控
Zhong Guo Huan Jing Bao· 2025-05-18 23:21
然而,当前我国湿地生态系统正面临新污染物污染风险。改革开放40余年来,伴随着我国经济社会的快 速发展,各类新污染物,包括多氯联苯、多溴联苯醚等,也通过直接排放、水体交替、干湿沉降等多种 方式持续进入湿地生态系统。最新监测数据表明,我国各类典型湿地生态系统已普遍存在新污染物复合 污染特征,且湿地新污染物分布区域广、地域特征较为明显,与工业化、城市化等人类活动程度、季节 性差异等因素有关。当前,急需系统推进湿地生态系统新污染物防控。 新污染物在湿地环境中呈现出显著的"三高"特征 新污染物在湿地环境中呈现出显著的"三高"特征,即高迁移性、高持久性和高生态风险性。 其一,迁移扩散能力显著。湿地作为开放型生态系统,其活跃的水文过程和生物活动(特别是候鸟迁 徙)为新污染物扩散提供了理想通道。研究表明,全球候鸟迁徙网络可跨越洲际运输新污染物,导致本 应发挥净化功能的湿地成为潜在的新污染物扩散中心。 其二,持久残留特征突出。新污染物具有苯环等稳定性结构,使其在自然环境中较难降解。更值得警惕 的是,湿地特有的沉积物吸附、植物富集和微生物固定等生态过程,进一步延长了新污染物滞留时间, 形成长期生态隐患。 湿地是水陆交错带形成的典 ...
Chiplet互连之争:UCIe何以胜出?
半导体芯闻· 2025-05-16 10:08
事实上,那些支持未来潜在的 chiplet 市场的新的功能,对于那些不以该市场为目标的设计来说并 非必需。 如果您希望可以时常见面,欢迎标星收藏哦~ 来源:内容来自半导体芯闻综合 ,谢谢 。 UCIe,一种用于先进封装中 die-to-die 互连的标准,其 2.0 版本因被认为过于重量级而引发担 忧。但许多新增特性是可选的这一事实,在很大程度上被公众讨论所忽略了。 "这是 UCIe 的幸与不幸,"Cadence 的高级产品市场营销部门主管 Mick Posner 说,"该规范定义 了如此多的变体,以至于你可以根据自己的确切需求进行定制。由于其众多的特性,它适用于从汽 车到高性能计算、人工智能再到军事/航空等各种领域。但对于 IP 提供商来说,这也是一种不幸。 你如何支持所有这些特性呢?" 两种标准——Bunch of Wires (BoW) 和 UCIe——正与专有设计展开竞争。如今,后者占据主导 地位,因为几乎所有正在进行的项目都是内部项目,所有 chiplet 都是内部创建和应用的。因此, 与外部采购的 chiplet 的互操作性并非一个需要考虑的问题。 那些被认为是促进广泛 chiplet 互操作性所 ...
企业“出题”,聚力“解题” 海安政企协同破“卡” 激活产业新动能
Yang Zi Wan Bao Wang· 2025-05-16 09:19
今年以来,海安市集群办牵头,会同相关产业培育部门,联合高校院所、专家团组,根据企业技术需求,精准匹配科研资源。"通过举办小规模、高频次 的对接交流活动,将企业技术'痛点'转化为发展'增长点'。目前系列对接活动已成功举办5场,每一场都成为解决企业技术难题的'加油站'。"海安市发改委 党组副书记、副主任张晨曦介绍说,通过政府牵线搭桥、企业主动作为、高校院所协同攻关,三方协同发力,共同搭建一个产业创新生态系统,从而为全 市产业高质量发展输送不竭动力。 "这种点对点的精准对接,实实在在地为我们指明了解决技术难题的方向!"南通瑞诚高分子材料有限公司研发部经理郭晓亮难掩兴奋之情。聚烯烃接枝马 来酸酐是企业重点攻关项目,但接枝过程中的气味残留、溶脂流动控制及接枝率提升等难题,一直困扰着研发团队。幸运的是,在此次对接会上,他们与 常州大学杨海存教授团队"一拍即合"。双方研究方向高度契合,经过深入交流,当即达成初步合作意向。 5月15日,海安新材料产业集群交流对接会"功能膜材料"专场活动在海安南京大学高新技术研究院举行,来自南京大学、南京工业大学、常州大学、中国 药科大学的8位功能膜材料领域专家,与海安功能膜材料产业的龙头骨干 ...
四维联动破解高校毕业生就业难题
Xin Hua Ri Bao· 2025-05-14 23:22
当前,高校毕业生就业工作早已不是一项简单的任务,它是一个涉及人才培养、市场需求、政策支持等 多个维度协同运作的复杂系统工程。尤其是在数字经济与产业变革深度融合的大背景下,构建一个"需 求精准对接、能力动态适配、服务高效协同、保障持续有力"的高质量就业生态系统,成为破解结构性 就业矛盾的关键所在。 要实现能力动态适配,关键在于构建"终身学习"机制,通过灵活且具有前瞻性的教育供给,让个体能力 与职业需求始终保持动态平衡。高校需要重新构建"三段式"培养框架:基础能力筑基,着重强化数理思 维、批判性思维等可迁移能力;方向能力聚焦,根据实际情况动态更新模块化课程;前沿能力迭代,联 合企业开设短期课程。同时,推行"双轨认证"制度,把学历证书和微证书结合起来,形成"能力雷达 图",这样企业在招聘时就能清晰地了解毕业生的技能情况。另外,实行"学分银行"机制,允许用企业 认证证书置换学分,提高毕业生的技能适配率。探索突破传统学制限制,推行"弹性学习—工作—再学 习"的循环模式,允许学生分段完成学业,并且为在职人员提供"技能保鲜假期"。 服务高效协同:搭建数字化精准服务网络 □ 刘慧英 需求精准对接:让教育链与产业链紧密相连 构 ...
利好突袭!外资,重大转变!
券商中国· 2025-05-14 23:22
外资机构上调中国股票评级! 受贸易紧张局势缓和影响,外资机构对中国股票的前景展望发生了重大逆转,纷纷表达了对中国增长前景的乐 观看法。其中,野村证券发布报告称,已将中国股票评级上调至"战术超配",并称将把部分资金从印度转至中 国;花旗则将恒生指数的年底目标价上调2%至25000点。另外,贝莱德、安联、路博迈等资管巨头也表示,多 重利好因素将提升中国资产吸引力。 与此同时,外资开始"真金白银"押注中国资产。摩根士丹利在最新发布的报告中指出,美国对冲基金在上周增 加了对中国股票的看涨押注。M&G Investments多空多资产策略的投资总监Michael Dyer称,他的公司最近增加 了对中国的敞口。 有分析称,人民币资产吸引力提升,将促使国际资本加大对中国资本市场的配置,尤其是对具备长期增长潜力 的优质蓝筹股和高信用等级债券。 外资突然转变 5月14日,瑞银全球财富管理首席投资官胡一帆在接受媒体采访时表示,该行最近刚刚将中国科技评级上调 为"具有吸引力",预计AI生态系统及其相关行业绝对会是中国未来的方向。 5月14日,瑞银全球财富管理首席投资官胡一帆在接受媒体采访时表示,该行最近刚刚将中国科技评级上调 为" ...
JD(JD) - 2025 Q1 - Earnings Call Transcript
2025-05-13 13:02
Financial Data and Key Metrics Changes - Total revenues increased by 16% year on year, with non-GAAP net profit rising by 43% to RMB 12.8 billion, and net margin expanding by 82 basis points to 4.2% [5][21][30] - Gross margin improved by 60 basis points year on year to 15.9%, marking twelve consecutive quarters of year-on-year improvement [21][29] Business Line Data and Key Metrics Changes - Electronics and home appliances revenue grew by 17% year on year, while general merchandise revenue increased by 15% [22][23] - Supermarket category revenue growth reached double digits for the fifth consecutive quarter, with strong performance during the Chinese Lunar New Year [9][10] - Fashion category also saw accelerated revenue growth, driven by enhanced brand assortment and user recognition [10][11] Market Data and Key Metrics Changes - JD's quarterly active customer number increased by double digits year on year, with notable growth in user shopping frequency [11][12] - Growth in order volume and user base in lower-tier markets outpaced that of higher-tier markets [13] Company Strategy and Development Direction - The company aims to enhance supply chain capabilities and solidify market leadership in electronics and home appliances while tapping into the general merchandise market [5][7] - JD is expanding into on-demand retail, particularly food delivery, which is integrated into its existing retail ecosystem [14][15] - The company launched a RMB 200 billion export to domestic sales program to enrich product supplies on its platform [17] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in long-term growth driven by structural opportunities in the industry, supported by government consumption stimulus policies [8][19] - The company is focused on sustainable long-term growth and maintaining flexibility to adapt to industry dynamics [19][31] Other Important Information - JD completed annual cash dividend payouts of USD 1.44 billion and repurchased approximately 80.7 million Class A ordinary shares, representing 2.8% of shares outstanding [21][79] - The company is actively leveraging AI and automation technologies across its ecosystem to enhance operational efficiency and user experience [18][60] Q&A Session Summary Question: What are the medium-term expectations for the food delivery initiative? - Management highlighted that food delivery is a natural extension of JD's core retail business, with significant demand and synergies expected to drive growth [38][40] Question: How is JD Retail sustaining momentum in apparel and general merchandise? - Management noted broad-based growth in general merchandise, with efforts focused on enhancing operational capabilities and user experience [45][47] Question: Can management share key metrics for the food delivery business? - Management reported strong user retention and cross-selling opportunities emerging, with over 1 million merchants onboarded [51][55] Question: How is AI being applied across JD's business segments? - AI is being utilized to enhance advertising effectiveness, improve operational efficiency, and optimize supply chain management [60][63]
TME(TME) - 2025 Q1 - Earnings Call Transcript
2025-05-13 12:00
Financial Data and Key Metrics Changes - In Q1 2025, total revenues reached RMB 7.4 billion, representing a 9% year-over-year growth [19] - Online music revenues increased by 16% year-over-year to RMB 5.8 billion, driven by strong growth in music subscription and advertising revenues [20] - Music subscription revenues reached RMB 4.2 billion, a 70% increase year-over-year [20] - Gross margin improved to 44.1%, up 3.2 percentage points year-over-year [23] - Net profit was RMB 4.4 billion, with a net profit attributable to equity holders of RMB 4.3 billion [25] Business Line Data and Key Metrics Changes - The music subscription business remains the cornerstone, with significant growth in SVIP membership and reduced promotional activity contributing to revenue increases [20][27] - Advertising revenues showed strong year-over-year growth, supported by the ad-supported model and increased engagement [20][21] - Artist-related merchandise sales and offline performances also contributed to revenue growth, with successful concert hosting leading to increased revenues [21][22] Market Data and Key Metrics Changes - The company has strengthened partnerships with record labels, enhancing its music library and user engagement [5][6] - There is a growing popularity of Korean, English, and Japanese tracks among users, indicating a diversification in music consumption preferences [7] - The company has expanded its merchandise collaborations, which have shown strong sales performance [8][9] Company Strategy and Development Direction - The company aims to enhance user engagement through a diverse range of music services and content offerings, focusing on high-quality growth [4][12] - Continued investment in original content production and innovative technologies is planned to improve user experience and strengthen the ecosystem [27] - The company is committed to expanding its SVIP membership and advertising business while diversifying offerings across the music value chain [27] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the 2025 outlook, expecting year-over-year growth rates to accelerate and margins to expand [31] - The company is focused on encouraging more music consumption and enhancing user engagement through unique offerings [31][32] - Management highlighted the importance of long-form audio content and its complementary role in driving user engagement and subscription growth [38] Other Important Information - The company released its 2024 ESG report, detailing practices in intellectual property protection, user privacy, and fostering diverse music communities [11] - The effective tax rate for Q1 2025 was 9.2%, a decrease from 19.9% in the same period of 2024 [25] Q&A Session Summary Question: Outlook for top line profit growth for the next quarter and full year 2025 - Management expressed confidence in achieving strong results in Q1 and expects growth rates to accelerate in 2025, driven by rich service offerings and user engagement [31] Question: Growth opportunity of podcasts in China and long-form audio user metrics - Management noted that while podcast growth in China is limited, long-form audio content is expected to grow and complement the existing subscriber base [36][38] Question: SVIP progress and key KPIs - Management reported strong growth in SVIP membership and ARPPU, with plans to enhance the membership system and improve user satisfaction [40][43] Question: Contribution of Super VIP to ARPPU growth - Management indicated that the reduction in promotional activities has positively impacted ARPPU growth, with expectations for continued growth from the SVIP business [46][48] Question: Monetization strategy for nonpaying subscribers - Management emphasized converting nonpaying users into subscribers and leveraging advertising and merchandise sales to generate revenue from this segment [51][55] Question: Future drivers for gross margin improvement - Management highlighted subscriber growth and cost management as key drivers for future gross margin improvement, with expectations for continued growth [60][62] Question: International opportunities, especially in Southeast Asia - Management acknowledged the importance of international markets and plans to invest in content creation and platform development in Southeast Asia [68][71] Question: Outlook for advertising and offline events business - Management expressed a positive outlook for advertising revenue growth and plans to enhance the quality of offline performances [79][80]
市场消息:泰国证券交易所扩大与纳斯达克的战略合作伙伴关系,实现资本市场生态系统现代化。
news flash· 2025-05-13 06:09
市场消息:泰国证券交易所扩大与纳斯达克的战略合作伙伴关系,实现资本市场生态系统现代化。 ...
印度芯片,什么水平?
半导体行业观察· 2025-05-11 03:18
如果您希望可以时常见面,欢迎标星收藏哦~ 来源:本文 编译自ciiblog ,谢谢。 随着日常生活中对电子设备的需求不断增长,以及各行各业数字化转型的持续推进,半导体已成为 各行各业的关键部件。多年来,印度主要进口智能手机、电脑和机器人设备等成品。然而,印度政 府近期推出的举措/计划,已促使多个终端应用领域建立了OSAT(外包半导体组装和测试)设施。 作为行业发展的下一阶段,印度目前正专注于半导体价值链中间产品的自主制造,尤其是芯片制 造。这一转变将使行业从OSAT运营发展到成熟的制造能力。 过去五年,印度半导体行业的投资复合年增长率为 10.5%,到 2024 年达到 3710 万美元。预计这 一上升趋势将持续下去,到 2030 年投资额将增至 1.096 亿美元。推动这一增长的因素包括汽车电 子、电信基础设施、工业自动化和消费电子产品的国内制造业增长,尤其是 5G 和基于人工智能的 技术的扩张。 2024年,受电动汽车革命的推动,印度对半导体的最大需求来自汽车行业(33%)。受5G网络部 署的推动,印度对半导体的第二大需求来自电信设备行业(24%)。其次是数据中心(14%)和工 业自动化(14%)等领域, ...
两篇Science论文“打架”,云南大学最新Science论文指出云南大学去年的Science论文有误
生物世界· 2025-05-10 01:31
撰文丨王聪 编辑丨王多鱼 排版丨水成文 寒武纪生物大爆发 以大量奇异且陌生的生物形态而著称,其中许多形态揭示了主要动物类群的早期祖先。 2024 年 8 月, 云南大学 马晓娅 团队在 国际顶尖学术期刊 Science 上发表了题为 : A Cambrian spiny stem mollusk and the deep homology of lophotrochozoan scleritomes 的研究论文。报道了团队在云南 东部 5.14 亿年 前的寒武纪关山生物群中发现的一个动物化石,将其命名为 Shishania aculeata ( 多刺世山虫) ,该化石罕 见地 保存了完整的软躯体构造, 被认为是一种 新的寒武纪软体动物 ,是 目前已知最早的软体动物化石之 一,为解决软体动物的起源及早期演化问题提供了关键证据。 2025 年 5 月 8 日,云南大学古生物研究院 张喜光 教授、 杨杰 教授等在国际顶尖学术期刊 Science 上发表了 题为: Shishania is a chancelloriid and not a Cambrian mollusk 的研究论文。 该论文 对 多刺世山虫被归类 ...