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High Power Laser Science and Engineering 2024年第4期12卷 24-35页

作者： Guohao Fu Guanzhong Li Weilong Yu Pei Li Dan Li Qirong Xiao mali Gong Ping Yan Department of Precision Instrument Tsinghua UniversityBeijingChina State Key Laboratory of Precision Space-time Information Sensing Technology BeijingChina

To overcome Yb lasing,a kilowatt-level 1535 nm fiber laser is utilized to in-band pump an Er:Yb co-doped fiber(EYDF)*** output power of a 301 W narrow-linewidth EYDF amplifier operating at 1585 nm,with 3 dB bandwidth of 150 pm and M^(2)<1.4,is experimentally *** the best of our knowledge,it is the highest output power achieved in L-band narrow-linewidth fiber amplifiers with good beam ***,a new ion transition behavior among energy levels for in-band pumping EYDF is uncovered,and a spatial-mode-resolved nonlinearityassisted theoretical model is developed to understand its internal *** simulations reveal that the reduction in slope efficiency is significantly related to excited-state absorption(ESA).ESA has a nonlinear hindering effect on power *** can drastically lower the pump absorption and slope efficiency with increasing pump power for in-band pumped EYDF ***,optimized approaches are proposed to improve its power to the kilowatt level via in-band pumping.

关键词： Er:Yb co-doped fiber amplifier excited-state absorption in-band pumping ion transition behavior spatial-mode-resolved nonlinearity-assisted theoretical model

Study of Fractional Order Tri-Tropic Prey-Predator Model with Fear Effect on Prey Population

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Advances in Pure Mathematics 2022年第11期12卷 652-675页

作者： Subrata Paul Animesh Mahata Supriya Mukherjee Prakash Chandra mali Banamali Roy Department of Mathematics Arambagh Government Polytechnic Arambagh India Mahadevnagar High School Maheshtala Kolkata India Department of Mathematics Gurudas College Narkeldanga Kolkata India Department of Mathematics Jadavpur University Kolkata India Department of Mathematics Bangabasi Evening College Kolkata India

In this manuscript, we have studied a fractional-order tri-trophic model with the help of Caputo operator. The total population is divided into three parts, namely prey, intermediate predator and top predator. In addition, the predator fear impact on prey population is suggested in this paper. Existence and uniqueness along with non-negativity and boundedness of the model system have been investigated. We have studied the local stability at all equilibrium points. Also, we have discussed global stability and Hopf bifurcation of our suggested model at interior equilibrium point. The Adam-Bashforth-Moulton approach is utilized to approximate the solution to the proposed model. With the help of MATLAB, we were able to conduct graphical demonstrations and numerical simulations.

关键词： Prey-Predator Model Stability Fear Effect Hopf Bifurcation

Effect of Hypoxia on Ca^(2+) Concentration in Broiler's Cardiac Muscle Cells

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Agricultural Sciences in China 2007年第9期6卷 1133-1137页

作者： DONG Shi-shan WANG Ying-chun mali-qin LI Kai ZHANG Jian-jun OU De-yuan ZHAO Li-hong LIU Ju-xiang QIAO Jian College of Animal Science and Technology Agricultural University ofHebei Baoding 071001 P.R.China College of Veterinary Medicine China Agricultural University Beijing 100094 P.R.China College of Animal Science and Technology Hebei North University Zhangjiakou 075001 P.R.China

The purpose of this research was to study the effect of hypoxia on the Ca^2＋ concentration in broiler＇s cardiac muscle cells （CMCs）. The concentration of Ca^2＋ in the CMC was observed using a laser scanning confocal microscope （LSCM）. The results showed that hypoxia could significantly increase intracellular Ca^2＋（normal oxygen, 99.3 ＋_ 13.1; hypoxia, 129.4 ＋_ 24.3, P 〈 0.01） in CMCs. The Ca^2＋ antagonist （nifedipine, verapamil） could significantly restrain the Ca^2＋ influx across the cell membrane of CMC treated by hypoxia （CMC： hypoxia ＋ verapamil, 100.9± 28.2; hypoxia ＋ nifedipine, 107.6± 27.7; P 〈 0.01）. The results showed hypoxia could increase intracellular Ca^2＋ concentration of CMC, and the Ca^2＋ antagonist could restrain the Ca^2＋ influx across the cell membrane of CMC treated by hypoxia.

关键词： broiler chicken cardiac muscle cell,Ca^2+ hypoxia

Summary of Report on Cardiovascular Diseases in China,2012

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Biomedical and Environmental Sciences 2014年第7期27卷 552-558页

作者： WANG Wen HU Sheng Shou KONG Ling Zhi GAO Run Lin ZHU Man Lu WANG Yong Jun WU Zhao Su CHEN Wei Wei YANG Jin Gang mali Yuan LIU Ming Bo For the editorial board National Center for Cardiovascular Diseases Beijing 100037 China. National Health and Family PlanningCommission of the People's Republic of China Beijing 100044 China. Beijing Tiantan Hospital 8eijing 100050 China. Beijing Anzhen Hospital Beijing 100029 China.

The prevalence of cardiovascular diseases （CVDs） is associated with the socioeconomic prosperity, lifestyle changes, accelerated process of ageing and urbanization. The prevalence of CVDs is continuously increasing in China and will remain an upward trend in the next 10 years. CVDs are the leading cause of death for Chinese in both urban area and rural area. Nowadays, 41.09% of deaths in rural area and 42.52% of deaths in urban area are caused by CVDs in China. The burden of CVDs remains heavy and has become an important public health problem. Effective strategies should be enforced urgently for the prevention of CVDs under the supervision of the government. In 2012, the Ministry of Health of China and 14 governmental departments jointly issued the Work Plan for Chronic Disease Prevention and Control in China （2012-2015）, a guideline for the prevention of chronic diseases, especially CVDs in China.

关键词： area Summary of Report on Cardiovascular Diseases in China,2012

利用DPGrid系统制作1∶500正射影像图

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测绘信息与工程 2010年第5期35卷 35-37页

作者：伽马里新疆维吾尔自治区第二测绘院武汉大学遥感信息工程学院武汉市珞喻路129号430079

利用了DPGrid系统,实现了新疆奎屯市城区1∶500数字正射影像图生产,试验表明其可以实现城市大比例尺数字正射影像图的高效率生产。

关键词： DPGrid系统正射影像智能镶嵌大比例尺

顺承还是颠覆:数字经济时代资本主义劳工状况的巨变与重塑

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经济学家 2023年第1期 36-44页

作者：马立政华东师范大学马克思主义学院

随着数字经济时代的到来,资本主义劳工状况发生了巨变。与大工业时代相比,由于数字技术的发展,科学技术和劳动之间的双重效应没有顺承发展,而是被颠覆,从以“适应效应”为主演变为以“异己效应”为主。“异己效应”的凸显促使数字经济... 详细信息

随着数字经济时代的到来,资本主义劳工状况发生了巨变。与大工业时代相比,由于数字技术的发展,科学技术和劳动之间的双重效应没有顺承发展,而是被颠覆,从以“适应效应”为主演变为以“异己效应”为主。“异己效应”的凸显促使数字经济时代“劳动一技术”的关系出现逆转,给劳工状况带来了三方面的挑战:劳动主体被“数字技术”所肢解;算法控制替代了原有的契约控制,在剥削被进一步掩盖的同时,劳动的强度不断增强;社会分工被加剧异化,不同时空劳工组织结构被扭曲。通过对这些现象的理论溯源,本文认为,数字技术对劳动和资本的关系进行了重构,数字技术不仅增强了资本支配劳动的权力,而且在资本主义私有制下加剧了劳动和资本之间的矛盾。为了有效重塑数字经济时代资本主义劳工状况,本文提出了两条路径:劳动者联合起来和发展公有制经济。这两个建议是对马克思主义理论的复归,也是在数字经济时代对具体理论的发展。

关键词：数字经济:数字技术劳动、资本与技术劳工状况

The Study of Paleoearthquakes on the Weihe Fault Zone

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Earthquake Research in China 2008年第4期22卷 470-480页

作者： Shi Yaqin Feng Xijie Dai Wangqiang Ren Jun Li Xiaoni Dou mali Earthquake Administration of Shaanxi Province Xi＇an 710068 China

It is indicated by historical records and the exploratory trench on the Weihe fault that the Yaodian-Zhangjiawan segment of the Weihe fault zone has experienced a historical earthquake and 3 paleoearthquake events in the past 9110a. The historical earthquake, namely, event Ⅳ, occurred between 1487 and 1568 AD. The date of paleoseismic event Ⅰ is （9110 ＋ 90） a, and the ages of events Ⅱ and Ⅲ are unknown. The coseismic vertical displacement of events Ⅰ, Ⅱ and Ⅲ is 0.5m, 0.5m and 0.2m, respectively. The exploratory trench also indicates that the Yaodian-Zhangjiawan segment of the Weihe fault was active in the Holocene.

关键词： Weihe fault zone Paleoearthquake Coseismic displacement Exploratory trench Bilicun Village

A novel model of drug cue-induced behaviours in rhesus macaque subjected to chronic ketamine exposure

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General Psychiatry 2023年第1期36卷 76-78页

作者： Meng Qin Jiaoqiong Guan Yichun Huang He Lin Ding Cui Tao Yao Chaoyang Tian mali Wong Zhe Shi Tifei Yuan Beijing Advanced Innovation Center for Soft Matter Science and Engineering College of Life Science and TechnologyBeijing University of Chemical TechnologyBeijingChina Department of Rehabilitation Medicine Guangzhou First People’s HospitalSchool of MedicineSouth China University of Technology School of MedicineGuangzhouGuangdongChina Shanghai Key Laboratory of Psychotic Disorders Brain Health InstituteNational Center for Mental DisordersShanghai Mental Health CenterShanghai Jiao Tong University School of MedicineShanghaiChina The Third Research Institute of Ministry of Public Security ShanghaiChina Department of Neurosciences Laboratory for Neuro-and PsychophysiologyKU LeuvenLeuvenBelgium Key Laboratory of Biomedical Engineering of Hainan Province School of Biomedical EngineeringHainan UniversityHaikouHainanChina Psychiatry and Behavioral Sciences SUNY Upstate Medical UniversitySyracuseNew YorkUSA Key Laboratory for Quality Evaluation of Bulk Herbs of Hunan Province Hunan University of Chinese MedicineChangshaHunanChina Co-innovation Center of Neuroregeneration Nantong UniversityNantongJiangsuChina

To the Editor,Non-human primate(NHP)models are advantageous for mimicking human addiction with high behavioural validity.1 However,current NHP drug addiction models(eg,self-administration)often require a comprehensive... 详细信息

关键词： drug behaviour ketamine

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中国工业碳排放强度变化的结构因素解析

自然资源学报 2020年第3期35卷 639-653页

作者：田华征马丽中国科学院地理科学与资源研究所区域可持续发展分析与模拟重点实验室北京100101 中国科学院大学资源与环境学院北京100049

以1986-2016年为研究时段,将41个工业部门归类为16个部门,在运用CKC模型分析各部门产值与其CO2排放量关系的基础上,建立以碳排放部门结构、碳排放系数、能源消费强度以及产值部门结构为因素的工业碳排放强度kaya分解模型,运用LMDI法分... 详细信息

以1986-2016年为研究时段,将41个工业部门归类为16个部门,在运用CKC模型分析各部门产值与其CO2排放量关系的基础上,建立以碳排放部门结构、碳排放系数、能源消费强度以及产值部门结构为因素的工业碳排放强度kaya分解模型,运用LMDI法分析不同因素对中国工业碳排放强度变化的贡献。研究发现:工业不同部门产值与其CO2排放量的关系不同。只有木材加工及家具制造业、造纸印刷及文教用品制造业和非金属矿物制品业呈现倒U型关系,机械交通电气电子设备制造业呈现倒N型关系,其余部门都呈现线性递增或单调递增关系。从工业碳排放强度变化的贡献因素看,非金属矿物制品、化学工业、医药工业、机械交通电气电子设备制造业和木材加工及家具制造业等资金和技术密集型行业的技术性CO2减排效应显著。其他制造业、石油和天然气开采业、纺织服饰业和化纤及橡塑工业等以初级产品加工为主的行业的结构性CO2减排效应显著,而石油加工炼焦和核燃料加工业、金属冶炼及制品业、电力煤气及水生产和供应业在产值与CO2排放量的同步递增关系以及结构增长的共同作用下,CO2减排效应不明显,需要在能源结构调整和利用效率提升方面密切关注。

关键词：工业碳排放强度部门结构 CKC关系 LMDI法

另类景观:重庆早期电影放映业态(1905-1949年)

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电影评介 2021年第2期 95-100页

作者：梁玛丽中国艺术研究院

重庆偏居西南一隅,在清末民初就有了“电光影戏”。电影放映一步步从社交会所走向戏院、茶楼,直到1918年首家影院涵虚电影场的成立,才真正改变了早期电影放映环境。抗战爆发后,电影放映业迈入了发展的兴盛期,商业院线与多线并进的官方... 详细信息

重庆偏居西南一隅,在清末民初就有了“电光影戏”。电影放映一步步从社交会所走向戏院、茶楼,直到1918年首家影院涵虚电影场的成立,才真正改变了早期电影放映环境。抗战爆发后,电影放映业迈入了发展的兴盛期,商业院线与多线并进的官方电影放映队构成了抗战重庆电影放映业的繁盛阵容。伴随战后国民党政府迁都与恶性通货膨胀等政治、社会因素,战后重庆电影放映业逐渐萎缩。本文通过梳理重庆早期电影放映从原点走向繁荣、萎缩的发展态势,以期构筑作为区域的重庆电影历史面貌。

关键词：电影放映业早期电影放映院线历史面貌恶性通货膨胀电影场影戏兴盛期