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Plug-and-play dual-phase-modulated continuous-variable quantum key distribution with photon subtraction

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Frontiers of physics 2019年第4期14卷 131-141页

作者： Xiao-Dong Wu Yi-Jun Wang Hai Zhong qin liao Ying Guo School of Automation Central South University Changsha 410083 China

Plug-and-play dual-phase-modulated continuous-variable quantum key distribution (CVQKD) protocol can effectively solve the security loopholes associated with transmitting local oscillator (LO). However, this protocol has larger excess noise compared with one-way Gaussian-modulated coherent-states scheme, which limits the maximal transmission distance to a certain degree. In this paper, we show a reliable solution for this problem by employing non-Gaussian operation, especially, photon subtraction operation, which provides a way to improve the performance of plug-and-play dual-phase-modulated CVQKD protocol. The photon subtraction operation shows experimental feasibility in the plug-andplay configuration since it can be implemented under current technology. Security results indicate that the photon subtraction operation can evidently enhance the maximal transmission distance of the plug-and-play dual-phase-modulated CVQKD protocol, which effectively makes up the drawback of the original one. Furthermore, we achieve the tighter bound of the transmission distance by considering the finite-size effect, which is more practical compared with that achieved in the asymptotic limit.

关键词： plug-and-play dual-phase-modulated continuous variable quantum key distribution photon subtraction

A novel pillared-layer-type porous coordination polymer featuring three-dimensional pore system and high methane storage capacity

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Science China Chemistry 2016年第8期59卷 970-974页

作者： Jiao-Min Lin Chun-Ting He Pei-qin liao Dong-Dong Zhou Jie-Peng Zhang Xiao-Ming Chen Key Laboratory of Bioinorganic and Synthetic Chemistry Ministry of EducationSchool of Chemistry and Chemical Engineering Sun Yat-Sen University Guangzhou 510275 China

Solvothermal reaction of Zn（NO3）2, 4-（1H-pyrazol-4-yl）pyridine （Hpypz） and 1,3,5-benzenetricarboxylic acid （H3btc） in N,N-dimethylacetamide （DMA） produced a new porous coordination polymer [Zns（pypz）4（btc）2] （1）. Single-crystal X-ray diffraction study of 1 showed that deprotonated pypz^- ligands served as 1,2,4-triazolate-like ligands, linking Zn（II） ^＋ ions to form porous two-dimensional （2-D） sql-a layers {Zn（pypz）} , which were further connected by eight-legged pillars {Zn2（btc）4（H2O）2}8- based on the typical paddlewheel dinuclear Zn2（RCOO）4（H20）2 cluster to form a novel type of non-interpenetrated pillared-layer framework with 3-D intersecting pore system and large pore volume. Gas sorption measurements revealed that 1 possesses large BET surface area of 2061 m^2g^-1 and very high methane total uptake of 245 cm^3（STP） cm^-3 at 298 K and 65 bar.

关键词： metal-organic framework network topology eight-legged pillar methane storage

MALE GAMETOPHYTE DEFECTIVE 2,Encoding a Sialyltransferase-like Protein,is Required for Normal Pollen Germination and Pollen Tube Growth in Arabidopsis

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Journal of Integrative Plant Biology 2010年第9期52卷 829-843页

作者： Yi Deng Wei Wang Wen-qing Li Chuan Xia Hong-Ze liao Xue-qin Zhang De Ye State Key-Laboratory of Pla-nt Physiology and Biochemistry College of Biological Sciences China Agricultural University Beijing 100193 China

Sialyltransferases （SlaTs） exist widely in vertebrates and play important roles in a variety of biological processes. In plants, several genes have also been identified to encode the proteins that share homology with the vertebrate SlaTs. However, very little is known about their functions in plants. Here we report the identification and characterization of a novel Arabidopsis gene, MALE GAMETOPHYTE DEFECTIVE 2 （MGP2） that encodes a sialyltransferase-like protein. MGP2 was expressed in all tissues including pollen grains and pollen tubes. The MGP2 protein was targeted to Golgi apparatus. Knockout of MGP2 significantly inhibited the pollen germination and retarded pollen tube growth in vitro and in vivo, but did not affect female gametophytic functions. These results suggest that the sialyltransferase-like protein MGP2 is important for normal pollen germination and pollen tube growth, giving a novel insight into the biological roles of the *** proteins in plants.

关键词： FERN gametophytes VERTEBRATES GENES GERMINATION PROTEINS POLLEN

2023年国内外油气行业发展及2024年展望

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国际石油经济 2024年第2期32卷 1-13页

作者：钱兴坤陆如泉罗良才吴谋远廖钦中国石油集团经济技术研究院

2023年,全球能源格局深刻调整,绿色低碳转型稳步推进;国际油价波动下跌,天然气价高位回落;油气勘探开发投资保持增长,油气产量继续双增;炼油乙烯产能继续增长,毛利总体下滑;大石油公司重新强化油气上游,降碳和盈利并重;碳减排共识进一... 详细信息

2023年,全球能源格局深刻调整,绿色低碳转型稳步推进;国际油价波动下跌,天然气价高位回落;油气勘探开发投资保持增长,油气产量继续双增;炼油乙烯产能继续增长,毛利总体下滑;大石油公司重新强化油气上游,降碳和盈利并重;碳减排共识进一步凝聚,碳市场影响力不断增强。中国油气行业立足安全清洁发展,能源行业政策体系加快完善;新型能源体系建设有序推进;成品油和天然气消费恢复向好,“全国一张网”加速完善;油气产储量保持增长,“两深一非”成增储上产新阵地;炼油能力继续小幅增长;大宗石化产品产能呈扩张态势;碳市场建设步伐加快。2024年,预计国际石油市场基本面由紧平衡转为供应过剩,天然气市场延续脆弱平衡,地缘政治紧张局势及外溢影响等将继续推动油气价格大幅波动;能源转型更加理性务实,基于安全效益发展建设能源韧性体系渐成共识。国内经济景气度回升势头向好,将进一步带动能源行业回暖;深化能源体制机制改革、加快建设新型能源体系、保障能源供应安全稳定仍是能源行业的重要使命任务。

关键词：油气行业产量消费量价格炼油能力能源转型低碳

An efficient data-driven global sensitivity analysis method of shale gas production through convolutional neural network

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Petroleum Science 2024年第4期21卷 2475-2484页

作者： Liang Xue Shuai Xu Jie Nie Ji qin Jiang-Xia Han Yue-Tian Liu qin-Zhuo liao State Key Laboratory of Petroleum Resources and Engineering China University of Petroleum (Beijing) Department of Oil-Gas Field Development Engineering College of Petroleum Engineering China University of Petroleum (Beijing) Chuanqing Drilling Engineering Co.Ltd. China National Petroleum Corporation

The shale gas development process is complex in terms of its flow mechanisms and the accuracy of the production forecasting is influenced by geological parameters and engineering parameters. Therefore, to quantitatively evaluate the relative importance of model parameters on the production forecasting performance, sensitivity analysis of parameters is required. The parameters are ranked according to the sensitivity coefficients for the subsequent optimization scheme design. A data-driven global sensitivity analysis(GSA) method using convolutional neural networks(CNN) is proposed to identify the influencing parameters in shale gas production. The CNN is trained on a large dataset, validated against numerical simulations, and utilized as a surrogate model for efficient sensitivity analysis. Our approach integrates CNN with the Sobol' global sensitivity analysis method, presenting three key scenarios for sensitivity analysis: analysis of the production stage as a whole, analysis by fixed time intervals, and analysis by declining rate. The findings underscore the predominant influence of reservoir thickness and well length on shale gas production. Furthermore, the temporal sensitivity analysis reveals the dynamic shifts in parameter importance across the distinct production stages.

关键词： Shale gas Global sensitivity Convolutional neural network Data-driven

Recent Progress of Diffusion Weighted Magnetic Resonance Imaging in Assessment of Tumor in the Body

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Clinical oncology and cancer researeh 2009年第5期6卷 362-366页

作者： Anwen Liu qin liao Jing He Xinlan Xiao Department of Oncology the Second Affiliated Hospital of Nanchang University Nanchang 330006 Jiangxi Province China. Department of Radiology the Second Affiliated Hospital of Nanchang University Nanchang 330006 Jiangxi Province China.

In the last couple of years,as the development ofnew imaging techniques,diffusion-weighted magnetic resonanceimaging (DW-MRI) has been applied increasingly in the evaluationof various diseases in the body,and has been adopted frequentlyas an imaging tool in clinical tumor *** a completelynon-invasive,highly sensitive,well-tolerated and relatively lowcost technique,diffusion-weighted imaging (DWI) can supplyboth quantitative and qualitative information at the cellular levelby exploring irregular diffusion motion of water molecules withintissues in the *** this article,we summarized the recentapplication and reliability of DWI in tumor evaluation includingtumor detection,tumor features,and outcome of early treatmentresponse.

关键词： magnetic resonance imaging diffusion-weighted tumor.

Bars in the Barkor Street

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China's Tibet 2007年第5期18卷 16-19页

作者： liao qin

In daytime,the Barkor Street is bustling with tourists,pious pilgrims and merchants crowded *** when darkness falls does the street become ***,the area surrounding the Barkor Street(from Tibetan Hospital compound exte... 详细信息

关键词： Bars in the Barkor Street

The impact of income on household CO_2 emissions in China based on a large sample survey

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Science Bulletin 2019年第6期64卷 351-353页

作者： Jiansheng Qu Lina Liu Jingjing Zeng Zhiqiang Zhang Jinping Wang Huijuan Pei Liping Dong qin liao Tek Maraseni Information Center for Global Change Studies Lanzhou Information Center Chinese Academy of Sciences Key Laboratory of Western China’s Environmental Systems (Ministry of Education) College of Earth and Environmental Sciences Lanzhou University University of Southern Queensland

Since reform and opening-up, China's energy consumption has been soaring largely due to the country's rapid economic development and urbanization [1]. As a result, C02 emissions from the household sector have been rapidly increasing [2]. China—now the second largest global economy and the largest C02 emitter [3]—has been making efforts to aggressively reduce C02 emissions and protect the environment. In line with the Paris Climate Change Agreement, China submitted its Nationally Determined Contribution (NDC) and pledged to achieve peak C02 emissions by 2030.

关键词： Since reform energy consumption second largest global

Current Immunotherapy Strategies for Rheumatoid Arthritis:The Immunoengineering and Delivery Systems

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Research 2024年第3期2023卷 169-189页

作者： Chenyu Zhang Peixiang Ma An qin liao Wang Kerong Dai Yuanyuan Liu Jie Zhao Zuyan Lu School of Medicine Shanghai UniversityShanghaiChina Clinical and Translational Research Center for 3D Printing Technology Shanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Shanghai Key Laboratory of Orthopedic Implants Department of Orthopedic SurgeryShanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Shanghai Frontiers Science Center of Degeneration and Regeneration in Skeletal System ShanghaiChina.

Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease accompanied by persistent multiarticular synovitis and cartilage degradation. The present clinical treatments are limited to disease-modifying anti-rheumatic drugs (DMARDs) and aims to relieve pain and control the inflammation of RA. Despite considerable advances in the research of RA, the employment of current clinical procedure is enormous, hindered by systemic side effect, frequent administration, tolerance from long-lasting administration, and high costs. Emerging immunoengineering-based strategies, such as multiple immune-active nanotechnologies via mechanism-based immunology approaches, have been developed to improve specific targeting and to reduce adverse reactions for RA treatments. Here, we review recent studies in immunoengineering for the treatment of RA. The prospect of future immunoengineering treatment for RA has also been discussed.

关键词： drugs Rheumatoid treatment