White Rabbit Leaping Toward a New Field

You may still remember the story about the race between the big white rabbit and little tortoise, in which the over-proud rabbit lost. However, the White Rabbit toffees produced by the Shanghai Guansheng Yuan (Group) Co., Ltd. are famous-brand products in China. This White Rabbit not only is the cham-

Discovery and characterization of a new hydrothermal field at 2°N on the slow-spreading Carlsberg Ridge

A new hydrothermal field(Tianshi)was discovered on the rift valley wall through plume anomaly surveys and geological work conducted in 2012 and 2018 between 2°35′N and 2°43′N of the slow-spreading Carlsberg Ridge(CR).Here,the results of two expeditions conducted to detect and characterize the new hydrothermal field are reported.Mineralogical and geochemical data,as well as 14 C ages of a sediment core collected near the field are presented to reveal the hydrothermal history.Results show that the Tianshi field is a basalt-hosted hydrothermal system.Geochemical data of the sediments collected near the field indicate a strong hydrothermal contribution,and hydrothermal Fe and Cu fluxes range from 30 to 155 mg/(cm^(2)·ka)and 0.59 to 11.49 mg/(cm^(2)·ka),respectively.Temporal variations in the fluxes of hydrothermal Fe indicate that there have been at least three amplified hydrothermal venting events(H 1,H 2,and H 3)in the Tianshi field over the last 35.2 ka,in 28.6-35.2 ka BP,22.0-27.6 ka BP,and 1.2-11.4 ka BP,respectively.Hydrothermal event H 2 was driven by an increased magmatic production associated with sea level fall during the Last Glacial Maximum,while event H 3 was promoted by tectonic activity associated with a rapid sea level rise.This study further verified the role of sea level change in modulating hydrothermal activity on mid-ocean ridges.

A new two-mode thermo- and squeezing-mixed optical field

We propose a new two-mode thermo-and squeezing-mixed optical field, described by the new density operator ρ=1-e^f-｜g｜^2 e^ga^＋b^＋e^fa^＋a｜0〉 f_（bb） 〈0｜ e^（g＊ab）, where ｜0〉_（bb） 〈0｜ is the b-mode vacuum, e ^fa^＋arepresents the thermo-field, and e^ga^＋b^＋ indicates squeezing. The photon statistics for ρ is studied by virtue of the method of integration within ordered product（IWOP） of operators. Such a field can be generated when a two-mode squeezed state passes through a one-mode dissipation channel.

New Method for 3D Transient Eddy Current Field Calculation and Its Application in Magneto-Acoustic Tomography

A new method of 3D transient eddy current field calculation is proposed. The Maxwell equations with time component elimination （METCE） are derived under the assumption of magnetic quasi static approximation, especially for the sample of low conductivity. Based on METCE, we deduce a more efficient reconstruction algorithm of a 3D transient eddy current field. The computational burden is greatly reduced through the new algorithm, and the computational efficiency is improved. This new algorithm decompounds the space-time variables into two individual variables. The idea is to solve the spatial vector component firstly, and then multiply it by the corresponded time component. The iterative methods based on METCE are introduced to recover the distribution of conductivity in magneto-acoustic tomography. The reconstructed images of conductivity are consistent with the original distribution, which validate the new method.

Numerical simulation of the temperature field within new type of monolayer freezing-shaft lining

Numerical simulation was used to estimate the temperature field within a poured concrete,mono-layer freezing-shaft lining.The affects from various factors were investigated.The maximum temperature within the lining increases as the lining thickness increases,decreases as the soil-side wall temperature decreases,decreases as the air temperature inside the shaft decreases and decreases as the air velocity inside the shaft increases.The compression speed of an insulating foam layer affects the maximum temperature difference between the interior and the sidewalls.The maximum temperature difference between the interior and the sidewalls approaches or exceeds the maximum allowable for the curing of poured concrete structures.Attention should be paid to the question of the lining cracking during the curing period.The temperature gradient in the vertical direction may be minimized by preventing air contact against the steel connection board supporting the base of the freshly poured section.

New Model of Predicting Remaining Recoverable Reserves and Application in the Oilfield

As a significant inducement during the development of oil and gas,the role of remaining recoverable reserves is more observable especially in the later phase of development of oilfield.Depended on the production decline method in petroleum reservoir engineering,a new model of predicting recoverable and remaining recoverable reserves has been

Inheriting Good Tradition and Expanding Cooperation Fields for New Stage of Friendship:on FES President Beck 's Visit to China

At the invitation of the Chinese Association for International Understanding(CAFIU),a delegation headed by Mr.Kurt Beck,President of FriedrichEbert-Stiftung(FES),visited China from 17 to 20,October 2013.As his first visit to China since taking the office of FES President,President Beck aimed at keeping abreast of China’s political,economic and social development since the 18th National Congress of the CPC as well as renewing the Memorandum of Understanding between CAFIU and FES.

CFD Analysis of Spiral Flow Fields in Proton Exchange Membrane Fuel Cells

Proton exchange membrane fuel cells(PEMFCs)are largely used in various applications because of their pollution-free products and high energy conversion efficiency.In order to improve the related design,in the present work a new spiral flow field with a bypass is proposed.The reaction gas enters the flow field in the central path and diffuses in two directions through the flow channel and the bypass.The bypasses are arranged incrementally.The number of bypasses and the cross-section size of the bypasses are varied parametrically while a single-cell model of the PEMFC is used.The influence of the concentration of liquid water and oxygen in the cell on the performance of different flow fields is determined by means of Computational fluid dynamics(COMSOL Multiphysics software).Results show that when the bypass number is 48 and its cross-sectional area is 0.5 mm^(2),the cell exhibits the best performances.

Study on a new grain-cash cropping pattern in paddy field

We studied a new grain-cash cropping pattern composed of "barley/watermelon + waize-rice", comparing with "barley / watermelon-rice" (CKI), "watermelon-rice", (CK2). The experiment was conducted in CNRRI’s field for 3 yr, employing completely randomized design with three replications, and each plot occupied 207 m~2. The soil in the experiment field contained: N, 2.48 g. kg, quick effective P 4 mg. kg, and quick effective K 53 mg·kg. The varieties tested were Zhemai 2 (barley), Zhemi 1 (watermelon), Suyu 1 (maize), and Shanyou 63 (hybrid rice).

论新质生产力赋能农业经济发展的迭代裂变

培育和发展新质生产力在推动农业经济高质量发展、推进农业农村现代化和农村共同富裕中的迭代裂变具有重要的战略意义和深远的价值意蕴。由数字化智能化等新技术新材料新工艺等引发的革命性变更、城乡资金人才信息技术等新型生产要素的优化配置和高效组合、绿色产品和环保效应不断满足人民绿色生活新需求、农业产业和农村现代化深度转型升级而催生和发展成为农业领域的新质生产力就是客观的历史必然。大量科技成果嵌入农村生产生活各环节,农业新质生产力成为引领中国农村产业经济高质量发展的战略引擎,必须为农业新质生产力变成发展新动能而“建立新秩序”。必须充分利用农业新质生产力在推动农业经济高质量发展进程中的迭代效应,增强农业经济发展的内生发展动力,推动农业新质生产力转化为农业农村现代化发展的新动能和新赛道,为中国式现代化作出更大贡献。

人工智能背景下高校商务英语教学新型场域构建研究

随着人工智能技术的快速发展和应用,高校商务英语教学正面临着新的挑战和机遇。传统教学模式难以满足学生对实际商务实践能力的需求,且与人工智能技术融合的教学模式还存在改进空间。因此,探索在人工智能背景下构建高校商务英语教学新型场域具有重要意义,旨在促进学生学习体验的提升和专业能力的培养,为高校商务英语教学的创新和改进提供理论支持和实践指导。本研究旨在探讨人工智能背景下高校商务英语教学新型场域构建的策略和实践,以提升学生的语言实践能力和专业素养。

提升审查质量和审查效率推动新质生产力发展

党的十八大以来,专利审查工作取得显著成效,审查标准日益完善,审批能力大幅增强,审查质量稳步提升,审查效率持续提高,审查模式不断创新,国际业务交流成果显著,有效发挥了“向前激励高水平创造、向后促进高效率运用”的源头保护作用。在坚持制度激励创新方面,持续完善大数据、人工智能等新领域新业态审查标准,以及中医药等传统特色领域专利审查标准,为推动新质生产力发展提供支撑。

智能制造新应用场景下现场工程师培养的现实困境与路径优化

随着科技革命和新型工业化的持续推进,制造业涌现出数字孪生、数字设计、智能检测,人机协同等数字化、智能化职业应用场景。新场景带来人才需求变革,能扎根生产一线、并创造性解决技术应用问题的智能制造现场工程师成为制约广大中小制造企业数字化转型与智能化升级的关键。现阶段职业教育在培养现场工程师的过程中,存在协同育人平台不完善、课程体系亟待重构一体化育人全过程等现实困境。因此,通过重新梳理产业链—岗位链—流程链—能力链—专业链—课程链的链接逻辑,依照产业需求导向、项目任务驱动、职业能力递进、创新实践支撑理念,引领多主体协同打造产科教平台、推动系统化重构高本协同课程体系、促进产学研训赛创一体化实施,全方位落实智能制造现场工程师的培养。

记忆之场:指向文化传承的革命题材教学新场域——以小学语文学科为例

革命文化是中华优秀传统文化的重要组成部分,小学语文教材中选取了大量革命题材文本,如何发挥其在革命传统教育中的重要作用是重大时代命题。现实教学中存在代际差异、亲历者体验缺失、文道难统一等问题。基于集体记忆视角,建构具有空间性、仪式性与功能性的记忆之场;具象无形文化,建构空间之场;凝聚情感共鸣,建构仪式之场;强调文道统一,建构功能之场等方式手段,可以解决革命题材教学的一些共性问题,催生根植于学生内心的民族认同与文化自信。

新质生产力推动下现场工程师培养的内在逻辑与实践进路

新质生产力对职业教育人才培养提出了新要求。马克思主义生产力经典理论和习近平经济思想对分析新质生产力的内涵与特征提供了理论指导。面向先进制造业、战略性新兴产业和未来产业培养现场工程师,是高等职业教育支撑和服务新质生产力发展的本质要求和现实需要。针对当前现场工程师培养存在的供需错位、范式缺失、效能不足等问题,构建量增质升的培养体系、创新生态协同的培养机制及场景化协作学习范式,成为现场工程师培养的实践路径。

供应链集成的高质量发展机制研究——集成场视角剖析新质生产力及应用

供应链集成是制造业与物流业由于产业联动形成的两链集成优化的研究对象,文章探讨其在高质量发展模式中的网链战略协同、资源整合、信息共享等集成优化机制。供应链集成的重点领域有汽车物流、家电物流、化工物流等产业联动模式。集成场理论基于改革开放以来的物流集成实践积淀,提供了以最简合成场元、同态原理、新质生产力原理等构建的网链合成场元,以形成网链功能运行、内涵创新、结构突变、延伸发展等机制,进而将业内、业外,境内、境外,微观经济动能、宏观政策势能辩证统一起来,将其作为新质生产力及其应用的研究范畴,剖析供应链高质量发展机制提供的新思路和方法,将学术研讨与实践联动的应用结合起来,为推动新质生产力落实供应链集成高质量发展贡献智慧和力量。