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O－（1－BENZOTRIAZOLYL）－SULFATE　AS　ALEAVING　GROUP　IN　SUBSTITUTION　OF　NUCLEOSIDE

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Chinese Chemical Letters 1995年第7期6卷 549-552页

作者： Zhang, YS wang, lx Zhang, LH Beijing Med Univ Sch Pharmaceut Sci Beijing 100083 Peoples R China Tainjin Med Univ Dept Pharm Tianjin 300070 Peoples R China

Amino adenosines were synthesized by substitution of 5'-O-(1-benzoiriazolyl)-sulfonyl adenosine with various amines in very good yields.

关键词： AS SULFATE GROUP SUBSTITUTION BENZOTRIAZOLYL ALEAVING

THERMAL　DECOMPOSITION　PROCESSES　OF　POLYANILINE　AND　POLY－O－TOLUIDINE　INVESTIGATED　BY　DIRECT　PYROLYSIS　MASS　SPECTROMETRY

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Chinese Chemical Letters 1995年第5期6卷 403-406页

作者： Xie, HW Liu, SY wang, lx Shun, YQ Chinese Acad Sci Changchun Inst Appl Chem Changchun 130022 Peoples R China

The thermal decmpos ition of polyani line(PAn) and poly-o-toluidine (POT)was studied by means of direct pyrolysis mass spectrometry (DPMS) and MS/MS. The results showed that both benzene-diamine and guinone-diimine units were produced,and the intensities of fragments corresponding to quinone-diimine units increased as the oxidation degrees increased The mechanism of thermal decomposition of PAn and POT was given for the first time.

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A physical model for the global mean surface air temperature anomalies over the past century

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Chinese Science Bulletin 1997年第8期42卷 658-662页

作者： Shi, GY Guo, JD Fan, XB wang, lx Natiorlal Climate Center Beijing China

OBSERVATIONS show that the global mean surface air temperature has risen by about 0.62℃over the past *** rise is widely thought to be the result of increasing atmosphericconcentrations of greenhouse gases such as car... 详细信息

关键词： global-mean temperature greenhouse gases sources of natural climate variability.

Comparative Molecular Field Analysis on a Set of New Herbicidal Sulfonylurea Compounds

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Chinese Chemical Letters 1997年第6期8卷 503-504页

作者： Liu, J wang, X Ma, Y Li, ZM Lai, CM Jia, GF wang, lx NANKAI UNIV STATE LAB ELEMENTOORGAN CHEMELEMENTOORGAN CHEM INSTTIANJIN 300071PEOPLES R CHINA

In this paper Comparative Molecular Field Analysis (CoMFA) method was applied to study the three-dimensional quantitative structure activity relationship (3D-QSAR) on a set of new herbicidal sulfonylureas. We optimize... 详细信息

关键词： Comparative Molecular Field Analysis on a Set of New Herbicidal Sulfonylurea Compounds

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残余物催化裂化器控制的先进流程控制发展

石油学报（石油加工） 2000年第5期16卷 85-87页

作者： wang.,lx Guo.,JB

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中国灾难预防应急联盟蓝皮书

中华危重病急救医学 2018年第6期30卷 515-517页

作者：刘中民王立祥沈洪同济大学附属东方医院急危重症诊疗中心上海200120 原武警总医院急救医学中心北京100039 解放军总医院原急诊科北京100853

2018年5月，由10家一级相关医疗健康学会和协会共同组成了中国灾难预防应急联盟。联盟专家一致认为，中国灾难医学救援体系应始于灾前、重于灾中、延于灾后；应本着聚举国之智、献克难之策、图复兴之业、解百姓之难的宗旨，遵循包容开... 详细信息

2018年5月，由10家一级相关医疗健康学会和协会共同组成了中国灾难预防应急联盟。联盟专家一致认为，中国灾难医学救援体系应始于灾前、重于灾中、延于灾后；应本着聚举国之智、献克难之策、图复兴之业、解百姓之难的宗旨，遵循包容开放、开放合作、合作克难、克难共赢的准则，实现传承、整合、转化、开创中国灾难预防应急的未来。经联盟成员讨论，对联盟工作的原则、策略和方法形成初步共识，灾难预防应急原则倡导灾难前、灾难中和灾难后三部分链环共同构成的灾难预防应急理念；整合、转化现有的预防应急技术，创造更新的预防应急技术的研发策略；协力开拓灾难预防应急方法分为救援前、中、后的技术方法。

关键词：灾难预防应急联盟技术转化

An Iterated Greedy Algorithm with Memory and Learning Mechanisms for the Distributed Permutation Flow Shop Scheduling Problem

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Computers, Materials & Continua 2025年第1期82卷 371-388页

作者： Binhui wang Hongfeng wang College of Information Science and Engineering Northeastern UniversityShenyang110819China

The distributed permutation flow shop scheduling problem(DPFSP)has received increasing attention in recent *** iterated greedy algorithm(IGA)serves as a powerful optimizer for addressing such a problem because of its straightforward,single-solution evolution ***,a potential draw-back of IGA is the lack of utilization of historical information,which could lead to an imbalance between exploration and exploitation,especially in large-scale *** a consequence,this paper develops an IGA with memory and learning mechanisms(MLIGA)to efficiently solve the DPFSP targeted at the ***,we incorporate a memory mechanism to make a more informed selection of the initial solution at each stage of the search,by extending,reconstructing,and reinforcing the information from previous *** addition,we design a twolayer cooperative reinforcement learning approach to intelligently determine the key parameters of IGA and the operations of the memory ***,to ensure that the experience generated by each perturbation operator is fully learned and to reduce the prior parameters of MLIGA,a probability curve-based acceptance criterion is proposed by combining a cube root function with custom *** last,a discrete adaptive learning rate is employed to enhance the stability of the memory and *** ablation experiments are utilized to verify the effectiveness of the memory mechanism,and the results show that this mechanism is capable of improving the performance of IGA to a large ***,through comparative experiments involving MLIGA and five state-of-the-art algorithms on 720 benchmarks,we have discovered that MLI-GA demonstrates significant potential for solving large-scale *** indicates that MLIGA is well-suited for real-world distributed flow shop scheduling.

关键词： Distributed permutation flow shop scheduling makespan iterated greedy algorithm memory mechanism cooperative reinforcement learning

Quickly obtaining densely dispersed coherent particles in steel matrix and its related mechanical property

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 111-118页

作者： Xiaoxiao wang Qingsong Huang School of Chemical Engineering Sichuan UniversityChengdu 610065China

Densely distributed coherent nanoparticles(DCN)in steel matrix can enhance the work-hardening ability and ductility of steel *** the routes to this end can be generally classified into the liquid-solid route and the solid-solid ***,the formation of DCN structures in steel requires long processes and complex *** far,obtaining steel with coherent particle enhancement in a short time remains a bottleneck,and some necessary steps remain ***,we show a high-efficiency liquid-phase refining process reinforced by a dynamic magnetic ***-Y-Mn-O particles had an average size of around(3.53±1.21)nm and can be obtained in just around 180 *** small nanoparticles were coherent with the matrix,implying no accumulated dislocations between the particles and the steel *** findings have a potential application for improving material machining capacity,creep resistance,and radiation resistance.

关键词： ferritic steels coherent particles microstructure compression test work hardening

Constraints on holographic QCD phase transitions from PTA observations

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 71-78页

作者： Song He Li Li Sai wang Shao-Jiang wang Center for Theoretical Physics and College of Physics Jilin University School of Physical Science and Technology Ningbo University Max Planck Institute for Gravitational Physics (Albert Einstein Institute) CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences (UCAS) School of Physical Sciences University of Chinese Academy of Sciences (UCAS) Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences

The underlying physics of QCD phase transition in the early Universe remains largely unknown due to its strong-coupling nature during the quark-gluon plasma/hadron gas transition, yet a holographic model has been proposed to quantitatively fit the lattice QCD data while with its duration of the first-order phase transition(FoPT) left undetermined. At specific baryon chemical potential, the first-order QCD phase transition agrees with the observational constraint of baryon asymmetry. It, therefore, provides a scenario for phase transition gravitational waves(GWs) within the standard model of particle physics. If these background GWs could contribute dominantly to the recently claimed common-spectrum red noise from pulsar timing array(PTA) observations, the duration of this FoPT can be well constrained, and the associated primordial black holes are still allowed by current observations.

关键词： pulsar timing array QCD phase transition gravitational waves primordial black holes