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儿童急性皮肤衰竭研究进展

中华烧伤与创面修复杂志 2024年第4期40卷 395-400页

作者：尹希常菲陈杰顾丽娟葛燚红毛佳敏苏州大学附属张家港医院烧伤整形科苏州215600 苏州大学附属张家港医院神经内科苏州215600 苏州大学附属张家港医院泌尿外科苏州215600 苏州大学附属张家港医院普外科苏州215600 苏州大学附属张家港医院产科苏州215600

急性皮肤衰竭(ASF)是指发生在皮肤和皮下组织因血流动力学不稳定和/或低灌注所导致的不可避免的损伤。目前国内外对于成人ASF已有一定的认识和报道,但对儿童ASF鲜有报道。该文从儿童ASF的定义、病理生理学变化、危险因素、临床表现与管... 详细信息

急性皮肤衰竭(ASF)是指发生在皮肤和皮下组织因血流动力学不稳定和/或低灌注所导致的不可避免的损伤。目前国内外对于成人ASF已有一定的认识和报道,但对儿童ASF鲜有报道。该文从儿童ASF的定义、病理生理学变化、危险因素、临床表现与管理等方面进行综述,提出建议以期为儿童ASF的临床诊断和治疗提供思路,推动对儿童ASF的深入研究。

关键词：儿童压力性溃疡多器官功能衰竭皮肤急性皮肤衰竭

Effect of casting speed on dendrite arm spacing of Mn13 steel continuous casting slab

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Journal of Iron and Steel Research International 2020年第6期27卷 665-672页

作者： Jian-min Li mao-fa Jiang Jun-xiang Ning Jun Zhai Key Laboratory for Ecological Metallurgy of Multimetallic Ores(Ministry of Education) Northeastern UniversityShenyang110819LiaoningChina Shanxi Taigang Stainless Steel Co. Ltd.Taiyuan 030003ShanxiChina School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina

The dendrite arm spacing in the continuous casting slab of Mn13 steel under different casting speeds was measured using the metallographic microscope. Meanwhile, a heat transfer model was established by the Pro-cast software. The relationship between the dendrite arm spacing and casting speed in continuous casting slab of Mn13 steel was studied and described by a function expression. The results provide an important theoretical basis for the development and optimization of con-tinuous casting production process of high-manganese steel and help to improve the quality of continuous casting slab of high-manganese steel. Under the experimental conditions, the suitable casting speed is about 0.9 m/min. The secondary dendrite spacing maintains a relatively stable low-amplitude increase trend, and it is beneficial to obtain a higher proportion of equiaxed crystals.

关键词： High-manganese steel Dendrite arm spacing Continuous casting Casting speed

Response of successive three generations of cotton,bollworm,Helicoverpa armigera (Hübner),fed on cotton bolls under elevated CO_2

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Journal of Environmental Sciences 2007年第11期19卷 1318-1325页

作者： WU Gang CHEN fa-jun SUN Yu-cheng ge Feng National Key Laboratory of lntegrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing 100101 China Department of Biology Wuhan University of Technology Wuhan 430070 China

The growth, development and consumption of successive three generations of cotton bollworm, Helicoverpa armigera （Htibner）, fed on cotton bolls grown under elevated CO2 （double-ambient vs. ambient） in open-top chambers were examined. Significant decreases in protein, total amino acid, water and nitrogen content and increases in free fatty acid were observed in cotton bolls. Changes in quality of cotton bolls affected the growth, development and food utilization of H. armigera. Significantly longer larval development duration in three successive generations and lower pupal weight of the second and third generations were observed in cotton bollworm fed on cotton bolls grown under elevated CO2. Significantly lower fecundity was also found in successive three generations of H. armigera fed on cotton bolls grown under elevated CO2. The consumption per larva occurred significant increase in successive three generations and frass per larva were also significantly increased during the second and third generations under elevated CO2. Significantly lower relative growth rate, efficiency of conversion of ingested food and significant higher relative consumption rate in successive three generations were observed in cotton bollworm fed on cotton bolls grown under elevated CO2. Significantly lower potential female fecundity, larval numbers and population consumption were found in the second and third generations of cotton bollworm fed on cotton bolls grown under elevated CO2. The integrative effect of higher larval mortality rate and lower adult fecundity resulted in significant decreases in potential population consumption in the latter two generations. The results show that elevated CO2 adversely affects cotton bolls quality, which indicates the potential population dynamics and potential population consumption of cotton bollworm will alleviate the harm to the plants in the future rising CO2 atmosphere.

关键词： elevated CO2 Helicoverpa armigera growth development fecundity cotton bolls population consumption successive generation

Review on monitoring and prevention technologies of splashing induced by inappropriate slag foaming in BOF

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Journal of Iron and Steel Research International 2023年第9期30卷 1661-1674页

作者： Rui-fang Wang Bo Zhang Cheng-jun Liu mao-fa Jiang Key Laboratory for Ecological Metallurgy of Multimetallic Ores(Ministry of Education) Northeastern UniversityShenyang 110819LiaoningChina School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina State Key Laboratory of Baiyunobo Rare Earth Resource Researches and Comprehensive Utilization Baotou Research Institute of Rare EarthsBaotou 014030Inner MongoliaChina

Basic oxygen steelmaking(BOS)is the most frequently used method to produce molten steel,which is being developed to meet the requirements of being safe,efficient,clean,and *** the BOS process,splashing events cause undesirable consequences,such as casualties,low efficiency,environmental pollution,and uncontrollable *** causes of three types of splashing(eruptive,foaming,and metallic splashing)were unraveled and it is concluded that inappropriate foaming is the root cause of splashing.A variety of monitoring techniques for splashing have been developed to measure real-time slag foaming in a basic oxygen furnace(BOF).The audiometry technique with flexible operation and high accuracy was comprehensively introduced with a practical *** on the formation mechanisms,the countermeasures for the three types of splashing were proposed to regulate slag foaming in a BOF by integrating diverse measures in terms of raw materials,slag forming,blowing pattern,and the use of splashing regulating *** work should emphasise an automatic action for these prevention measures in response to the splashing risk from the monitoring technology,promoting the progress of intelligent steelmaking.

关键词： Steelmaking Splashing Slag foaming Monitoring Prevention

Comparative study of β-Si_3N_4 powders prepared by SHS sintered by spark plasma sintering and hot pressing

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Journal of University of Science and Technology Beijing 2007年第3期14卷 271-275页

作者： Ling Bai Xiaodong mao Weiping Shen Changchun ge Laboratory of Special Ceramics and Powder Metallurgy University of Science and Technology Beijing Beijing 100083 China

β-Si3N4 powders prepared by self-propagating high-temperature synthesis （SHS） with additions of Y2O3 and Al2O3 were sintered by spark plasma sintering （SPS）. The densification, microstructure, and mechanical properties of Si3N4 ceramics prepared using this method were compared with those obtained by hot pressing process. Well densified Si3N4 ceramics with finer and homogeneous microstructure and better mechanical properties were obtained in the case of the SPS technique at 200°C lower than that of hot pressing. The microhardness is 15.72 GPa, the bending strength is 716.46 MPa, and the fracture toughness is 7.03 MPa·m1/2.

关键词： self-propagating high-temperature synthesis (SHS) hot pressing spark plasma sintering (SPS) silicon nitride mechanicalproperties

Entropy squeezing for three-level atom interacting with a single-mode field

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Chinese Physics B 2019年第6期28卷 81-86页

作者： Fei-fan Liu mao-fa fang Xiong Xu Synergetic Innovation Center for Quantum Effects and Application Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of EducationSchool of Physics and ElectronicsHunan Normal UniversityChangsha 410081China

The entropy squeezing for a three-level atom interacting with a single-model field is studied. A general definition of entropy squeezing for three-level atom is given according to entropic uncertainty relation of three-level system, and the calculation formalism of entropy is derived for a cascade three-level atom. By using numerical calculation, the entropy squeezing properties of a cascade three-level atom are examined. Our results show that, three-level atom can generate obvious entropy squeezing effect via choosing appropriate superposition state of three-level atom. Our results are meaningful for preparing three-level system information resources with ultra-low quantum noise.

关键词： variance squeezing entropy squeezing three-level atom

蒸汽爆破技术及其在农业生物资源利用中的应用研究进展

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粮食与油脂 2024年第1期37卷 6-9,14页

作者：肖国明肖竹钱毛建卫葛青浙江科技学院生物与化学工程学院浙江省农产品化学与生物加工技术重点实验室浙江杭州310023 浙江工业职业技术学院浙江绍兴312099

阐释了蒸汽爆破设备装置及其工作原理,分析了蒸汽爆破技术的影响因素及其优缺点,综述了蒸汽爆破技术在生物活性成分提取和大分子物质改性中的应用,以期为蒸汽爆破技术的推广应用提供参考。

关键词：蒸汽爆破技术工作原理影响因素生物资源

Effect of Magnesium on Evolution of Oxide and Sulphide in Liquid Iron at 1873K

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Journal of Iron and Steel Research International 2014年第12期21卷 1073-1080页

作者： Tong-sheng ZHANG De-yong WANG mao-fa JIANG Institute of Ferrous Metallurgy Northeastern University

To reveal the effects of magnesium on the evolution of oxide and sulphide inclusions in liquid iron, both thermodynamic calculations and deoxidization experiments were carried out. The samples extracted from the liquid iron were polished and analyzed by optical microscopy and scanning electron microscopy. The results showed that magne sium could modify oxide and sulphide inclusions simultaneously. Spherical MgO and irregular spinel inclusions were observed in the samples. The elongated MnS inclusions were replaced by small MgO · MgS or MgO · MgS · MnS complex inclusions, and the sulphides were distributed dispersively. The evolution mechanisms of inclusions were discussed comprehensively, and a proposed model for the formation of oxysulphide was set up.

关键词： magnesium inclusion oxysulphide thermodynamics liquid iron

Protection of entanglement between two V-atoms in a multi-cavity coupling system

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Chinese Physics B 2022年第1期31卷 124-129页

作者： Wen-Jin Huang mao-fa fang Xiong Xu Synergetic Innovation Center for Quantum Effects and Applications Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of EducationSchool of Physics and ElectronicsHunan Normal UniversityChangsha 410081China School of Physics and Electronics Hunan Key Laboratory of Super Microstructure and Ultrafast ProcessState Key Laboratory of Powder MetallurgyCentral South UniversityChangsha 410083China

The protection of the entanglement between two V-atoms(EBTVA)in a multi-cavity coupling system is *** whole system consists of two *** two V-atoms are initially in the maximum entangled state and interacts locally with its own dissipative cavity which is coupled to the external cavities with high quality factor(ECWHQF).The results show that,when there is no ECWHQF,the EBTVA can be protected effectively in the case where the V-atom and the dissipative cavity are weak coupled in large detuning,while when there are different numbers n of ECWHQF coupled to two dissipative cavities,by adjusting the parameters of the number n of ECWHQF and the coupling strength k between cavities,the EBTVA can be protected perfectly and *** result provides an effective method for protecting entanglement resources of three-level system.

关键词： V-atom multi-cavity coupling system entanglement negativity