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呼吸性粉尘旋风分离器采样效率数值研究

煤炭技术 2014年第12期33卷 307-309页

作者：惠立锋中煤科工集团重庆研究院有限公司重庆400037

为了研究开发满足我国BMRC采样规范的呼吸性粉尘预分离器,基于流体力学软件Fluent 6.3对不同结构尺寸呼吸性粉尘旋风分离器内部流场进行模拟仿真,选用标准正交表进行采样效率模拟实验,并利用回归设计技术建立了采样效率的二次回归预测... 详细信息

为了研究开发满足我国BMRC采样规范的呼吸性粉尘预分离器,基于流体力学软件Fluent 6.3对不同结构尺寸呼吸性粉尘旋风分离器内部流场进行模拟仿真,选用标准正交表进行采样效率模拟实验,并利用回归设计技术建立了采样效率的二次回归预测模型。通过数值模拟比较预测模型发现,利用提供的方法研究呼吸性粉尘旋风分离器采样效率可保证计算模型可靠性,提高设计效率。

关键词：旋风分离器数值模拟采样效率正交试验回归设计

Effect of Progressive Substitution of Cement and lime by Powdered Shells Used as a Curing Agent for Dredged Soil in a Port Area

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期40卷 88-102页

作者： SUN Yang WANG Faxin SU Yaying li Yiwei HE feng College of Harbour Coastal and Offshore EngineeringHohai UniversityNanjing 210098China Huai'an Research Institute Hohai UniversityHuai'an 223025China Jiangsu Fangyang Industrial Investment Corp.Ltd. Lianyungang 210098China

This study aimed to address the challenges of solid waste utilization,cost reduction,and carbon reduction in the treatment of deep-dredged soil at Xuwei Port in lianyungang city of *** research in this area was ***,a curing agent made from powdered shells was used to solidify the dredged soil in *** employed laboratory orthogonal tests to investigate the physical and mechanical properties of the powdered shell-based curing *** was collected by conducting experiments to assess the role of powdered shells in the curing process and to determine the optimal ratios of powdered shells to solidified soil for different *** development of strength in solidified soil was studied in both seawater and pure water *** study revealed that the strength of the solidified soil was influenced by the substitution rate of powdered shells and their interaction with *** cement content had a positive effect on *** high-strength solidified soil,the recommended ratio of wet soil:cement:lime:powdered shells were 100:16:4:4,while for low-strength solidified soil,the recommended ratio was 100:5.4:2.4:***,under appropriate conditions,improved short-term strength by promoting the formation of expansive ettringite minerals that contributed to cementation and *** findings suggest that the combination of cement and powdered shells is synergistic,positively affecting the strength of solidified *** recommended ratios provide practical guidance for achieving desired strength levels while considering factors such as cost and carbon *** role of seawater in enhancing short-term strength through crystal formation is noteworthy and can be advantageous for certain *** conclusion,this research demonstrates the potential of using a powdered shell-based curing agent for solidifying dredged soil in an environmentally friendly and cost-effective *** recommended ratios for different str

关键词： carbon reduction and solidification dredged soil abandoned shells orthogonal test chemical additives(lime and cement) unconfined compressive strength(UCS)

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基于高效信息缓存的位置隐私保护方案

通信学报 2017年第6期38卷 148-157页

作者：李璐璐华佳烽万盛朱辉李凤华西安电子科技大学通信工程学院陕西西安710071 西安电子科技大学网络与信息安全学院陕西西安710071

随着移动互联网的高速发展与智能终端的迅速普及,基于位置的服务(LBS,location-based service)已在导航、社交等领域得到广泛应用。但由于个人位置信息的敏感性,移动对象位置相关的数据隐私保护已经成为LBS中的研究热点。综合考虑用户... 详细信息

随着移动互联网的高速发展与智能终端的迅速普及,基于位置的服务(LBS,location-based service)已在导航、社交等领域得到广泛应用。但由于个人位置信息的敏感性,移动对象位置相关的数据隐私保护已经成为LBS中的研究热点。综合考虑用户所处区域背景信息的开放性特征,引入信息缓存机制,提出一种虚假位置选择算法,有效减少用户与不可信服务器间的交互次数,并结合k-匿名技术实现了用户位置信息的高效隐私保护。相对于现有技术,该方案不依赖任何可信第三方,可实现抵御拥有背景信息攻击者的推理攻击。实验结果证明了所提方案的有效性和高效性。

关键词：基于位置的服务隐私保护背景信息缓存机制

干戈玉帛:辛亥革命时期战争分裂与和平统一的历史选择

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安徽史学 2017年第1期 85-90页

作者：罗福惠李凤凤华中师范大学中国近代史研究所湖北武汉430079 江西财经大学马克思主义学院江西南昌330013

本文回归到国内鼎革之际战争与和平这个最基本的问题意识,在概括辛亥革命发生前两种救国主张的争论之后,按两个阶段分析革命派的行动方式,即从武昌首义到南部半个中国"独立"中的干戈、玉帛并用,从南京临时政府成立到南北和谈完成的"以... 详细信息

本文回归到国内鼎革之际战争与和平这个最基本的问题意识,在概括辛亥革命发生前两种救国主张的争论之后,按两个阶段分析革命派的行动方式,即从武昌首义到南部半个中国"独立"中的干戈、玉帛并用,从南京临时政府成立到南北和谈完成的"以和平收革命之功",说明实践层面的革命过程及其结果,只能是具体历史转折阶段上各种指向不同的构成力量所形成的合力的历史选择。

关键词：辛亥革命战争和平历史选择

Hypidone hydrochloride(YL-0919)ameliorates functional deficits after traumatic brain injury in mice by activating the sigma-1 receptor for antioxidation

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Neural Regeneration Research 2025年第8期20卷 2325-2336页

作者： Yafan Bai hui Ma Yue Zhang Jinfeng li Xiaojuan Hou Yixin Yang Guyan Wang Yunfeng li Department of Anesthesiology Beijing Tongren HospitalCapital Medical UniversityBeijingChina Beijing Institute of Basic Medical Sciences BeijingChina Hebei North University ZhangjiakouHebei ProvinceChina Beijing Institute of Pharmacology and Toxicology State Key Laboratory of Toxicology and Medical CountermeasuresBeijing Key Laboratory of NeuropsychopharmacologyBeijingChina

Traumatic brain injury involves complex pathophysiological mechanisms,among which oxidative stress significantly contributes to the occurrence of secondary *** this study,we evaluated hypidone hydrochloride(YL-0919),a self-developed antidepressant with selective sigma-1 receptor agonist properties,and its associated mechanisms and targets in traumatic brain *** experiments to assess functional deficits were followed by assessment of neuronal damage through histological analyses and examination of blood-brain barrier permeability and brain ***,we investigated the antioxidative effects of YL-0919 by assessing the levels of traditional markers of oxidative stress in vivo in mice and in vitro in HT22 ***,the targeted action of YL-0919 was verified by employing a sigma-1 receptor antagonist(BD-1047).Our findings demonstrated that YL-0919 markedly improved deficits in motor function and spatial cognition on day 3 post traumatic brain injury,while also decreasing neuronal mortality and reversing blood-brain barrier disruption and brain ***,YL-0919 effectively combated oxidative stress both in vivo and in *** protective effects of YL-0919 were partially inhibited by *** results indicated that YL-0919 relieved impairments in motor and spatial cognition by restraining oxidative stress,a neuroprotective effect that was partially reversed by the sigma-1 receptor antagonist ***-0919 may have potential as a new treatment for traumatic brain injury.

关键词： antidepressant drug blood-brain barrier cognitive function hypidone hydrochloride(YL-0919) neurological function nuclear factor-erythroid 2 related factor 2 oxidative stress sigma-1 receptor superoxide dismutase traumatic brain injury

Propagating subduction initiation of the Caroline Plate at the Mussau Trench

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Science China Earth Sciences 2025年第1期68卷 253-269页

作者： Chun-feng li Yongkang DENG Tao WU Dongdong DONG Guoliang ZHANG Jiazheng ZHANG Yutao liU Yaqing li Fugui TANG Lulu ZHANG Department of Marine Sciences Zhejiang University Laboratory of Marine Mineral Resources Laoshan Laboratory Key Lab of Marine Geology and Environment Institute of Oceanology Chinese Academy of Sciences Key Lab of Ocean and Marginal Sea Geology South China Sea Institute of Oceanology Chinese Academy of Sciences Science & Technology on Integrated Information System Lab Institute of Software Chinese Academy of Sciences

New seismic imaging from the Mussau Trench confirms that, under horizontal compression on an oceanic plate boundary, it is within the young and weak oceanic plate that a trench will develop, and it is the young plate, not so long after its birth, that starts to subduct toward the old plate. The Mesozoic Pacific Plate cannot easily bend, under the joint horizontal compression and vertical gravity pull, even with a pre-existing weak zone in place and with a large age offset across the plate boundary. The bending of the Caroline Plate near the northern end of the Mussau Trench started only after a long-time span of trench migration, and/or after a prolonged transition from initial compression to trench development. Highly contrasting trench deformation and sedimentary accretion between two parallel seismic sections support an evident migration of underthrusting or significant longitudinal heterogeneity along the trench. The swift transition from underthrusting to non-thrusting can be explained by a counter-clockwise rotation of the Caroline Plate. That miniature accretionary wedges develop even before the subduction initiates imply strong compression and uplifting before the underthrusting can kick-start. Rotation of the Caroline Plate have been halted as the Mussau Trench is seismically rather quiet and the Lyra Trough to the east shows relaxational extension.

关键词： Mussau Trench Subduction initiation Seismic reflection Caroline Plate

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Vector meson's spin alignments in high energy reactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-hui Chen Zuo-Tang liang Yu-Gang Ma Xin-li Sheng Qun Wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation

利用基因组DNA诱变技术选育高抑制物耐受性工业酵母菌

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林产化学与工业 2015年第6期35卷 108-112页

作者：陈亮徐龙龙闫德冉杜凤光惠丰立南阳师范学院生命科学与技术学院河南南阳473061 河南天冠企业集团有限公司车用生物燃料技术国家重点实验室河南南阳473000

通过化学诱变和基于基因组DNA诱变的遗传重组技术,对乙醇工业酵母菌(Saccharomyces cerevisiae)的抑制物耐受性进行改造,获得了重组酿酒酵母HN-1-24,其抑制物耐受性能和发酵性能均得到了提高。重组菌株在含7 g/L乙酸和1 g/L糠醛的抑制... 详细信息

通过化学诱变和基于基因组DNA诱变的遗传重组技术,对乙醇工业酵母菌(Saccharomyces cerevisiae)的抑制物耐受性进行改造,获得了重组酿酒酵母HN-1-24,其抑制物耐受性能和发酵性能均得到了提高。重组菌株在含7 g/L乙酸和1 g/L糠醛的抑制物耐受性发酵培养基中,具有良好的糖转化率和乙醇产量,发酵100 g/L葡萄糖能够产生38 g/L乙醇。在纤维素水解液发酵培养中进行乙醇发酵,发现重组菌株的乙醇发酵效率明显快于原始菌株,发酵时间提前6 h,且发酵终点乙醇产量为37 g/L,比原始菌株HN-1提高了8.8%。

关键词：酿酒酵母乙醇化学诱变遗传重组抑制物

Immunosuppressive effects of dihydroetorphine in its dependent rodents

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Acta Pharmacologica Sinica 1999年第5期 90-91页

作者： WU Wei-Ran, ZHENG Ji-Wang, li Na, li Ying, ZHENG Ke-Ren, BAI hui-Qing, li feng-Yuan ( Department of Pharmacology, Xi-an Medical University, Xi-an 710061 2National Institute on Drug Dependence Department of Immunology, Beijing Medical University, Beijing 100083, China)

To study the immunomodulatory effects of dihydreetorphine (DHE), the most powerful nacrotic analgesic synthesized up to now, the present studies systematically investigated its actions on immune functions in sub-chronically administered mice,72 h computer-controlled automatic intravenous injection rats,and intravenous self-administration *** significantly lowered the increase of body weight, decreased spleen and thymus weights, weakened the delayed-type hypersensitivity, reduced the

关键词： Immunosuppressive effects of dihydroetorphine in its dependent rodents