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Crystal Structure and Magnetic Studies of a New Nitronyl Nitroxide Compound

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Chinese Chemical letters 2000年第8期11卷 749-752页

作者： ding, l Zhang, DQ Zhang, B Zhu, DB Chinese Acad Sci Ctr Mol Sci Inst Chem Organ Solids Lab Beijing 100080 Peoples R China

Compound 1 was first synthesized and characterized. Its crystal structure and magnetic property were determined and investigated. Discussion about the molecule packing in crystal and the macroscopic magnetism was also... 详细信息

关键词： nitronyl nitroxide crystal structure spin density magneto-structural relationship

Heritability estimations of ammonia tolerance and survival of ridgetail white prawn Exopalaemon carinicauda

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Journal of Oceanology and limnology 2022年第4期40卷 1662-1668页

作者： ding lÜ Chengsong ZHANG Yang YU Jianhai XIANG Fuhua lI Key laboratory of Experimental Marine Biology Institute of OceanologyChinese Academy of SciencesQingdao 266071China laboratory for Marine Biology and Biotechnology Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China The Innovation of Seed Design Chinese Academy of SciencesWuhan 430072China

Ridgetail white prawn Exopalaemon carinicauda is an important economic marine species in *** improve the germplasm quality of cultured ***,for the fi rst time,we estimated the heritability of ammonia tolerance and survival of ***,covering 263 full-sib families in multiple *** models including binary linear animal model(BlA),binary linear sire-dam model(BlSD),probit threshold animal model(PTA),and probit threshold sire-dam model(PTSD)were *** estimated heritability of tolerance to ammonia in diff erent models ranged from 0.09 to 0.22,and that of survival rate ranged from 0.06 to *** the tolerance to ammonia,both the PTSD and BlSD models showed comparatively better prediction accuracies(0.48 and 0.47,respectively)than PTA and BlA models(0.40 and 0.26,respectively),while to the survival rate,all four models presented relatively low predictive abilities(0.16-0.26).This study provided important information for the future breeding program of ***.

关键词： heritability Exopalaemon carinicauda tolerance to ammonia survival rate

MICRO-DESCRIPTION OF THE SOlUTE-FIElD AND THE PHASE-FIElD MODEl FOR ISOTHERMAl PHASE TRANSITION IN BINARY AllOYS

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Acta Metallurgica Sinica(English letters) 2004年第6期17卷 835-839页

作者： H.M.ding l.l.Chen R.X.liu ResearchStudioofSolidificationSimulation CollegeofMaterialsScienceandEngineeringHuazhongUniversityofScienceandTechnologyWuhan430074China

A new phase field method for two-dimensional simulations of binary alloy solidification was studied. A model basing on solute conservative in every unit was developed for solving the solute diffusion equation during solidification. Two-dimensional computations were performed for ideal solutions and Ni-Cu dendritic growth into an isothermal and highly supersaturated liquid phase.

关键词： phase field isothermal phase field model diffusion

Molecular dynamics simulation and continuum modelling of granular surface flow in rotating drums

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Chinese Science Bulletin 2007年第5期52卷 692-700页

作者： lI ShuiQing YAO Qiang CHEN Bing ZHANG Xuan ding Y l Department of Thermal Engineering Tsinghua University Beijing 100084 China Department of Chemical Engineering University of Leeds Leeds LS29JT UK

Numerical simulations of granular flows in rotating drums operated at medium to high rates (Fr=0.1― 0.2) have been carried out by using a Molecular Dynamics (MD) algorithm that incorporates inelastic particle interactions, sliding friction and rolling friction. The results indicate that the behavior of granular flow in rotating drums can be classified into two distinct zones: a shear active layer at the bed surface and a quasi-static plug flow region adjacent to the wall. The residence time of a tracer particle in the active layer is approximately a third or a half of that in the plug flow region. The thickness of the active layer at mid-chord is about 0.57―0.61 times that of the plug flow region. It is found that all cases simulated in this work are in the rolling-cascading intermediate regime instead of the pure rolling re-gime. The simulated tangential velocity at the mid-chord is also compared with experimental results reported in the literature and good agreement has been obtained. Based on the MD simulations and experimental results, a continuum approach has also been developed. It is shown that the behavior of granular solids in the plug flow region experiences plastic deformation along the radial direction from the wall with the velocity profiles well described by an exponential function, whereas the active layer velocity follows a simple expression for the Couette shear flow. Discussion has also been made on the granular temperature and concentration profiles.

关键词：粒料颗粒表面流分子动力学模拟连续模型转鼓

Adoptive transfer of T cells transduced with a chimeric antigen receptor to treat relapsed or refractory acute leukemia: efficacy and feasibility of immunotherapy approaches

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Science China(life Sciences) 2016年第10期59卷 673-677页

作者： Guoliang ding Hu Chen Department of Hematopoietic Stem Cell Transplantation Affiliated Hospital of Academy of Military Medical Sciences

Treatment outcomes of acute leukemia(Al) have not improved over the past several decades and relapse rates remain high despite the availability of aggressive therapies. Conventional relapsed leukemia treatment includes second allogeneic hematopoietic stem cell transplantation(allo-HSCT) and donor lymphocyte infusion(DlI), which in most cases mediate, at best, a modest graft-versus-leukemia effect, although their clinical efficacy is still limited. Although allo-HSCT following myeloablative conditioning is a curative treatment option for younger patients with acute myeloid leukemia(AMl) in a first complete remission(CR), allo-HSCT as a clinical treatment is usually limited because of treatment-related toxicity. The overall DlI remission rate is only 15%–42% and 2-year overall survival(OS) is approximately 15%–20%, with a high(40%–60%) incidence of DlI-related graft-versus-host disease(GVHD). Therefore, development of new, targeted treatment strategies for relapsed and refractory Al patients is ongoing. Adoptive transfer of T cells with genetically engineered chimeric antigen receptors(CARs) is an encouraging approach for treating hematological malignancies. These T cells are capable of selectively recognizing tumor-associated antigens and may overcome many limitations of conventional therapies, inducing remission in patients with chemotherapy-refractory or relapsed Al. In this review, we aimed to highlight the current understanding of this promising treatment modality, discussing its adverse effects and efficacy.

关键词： chimeric antigen receptor acute leukemia efficacy feasibility

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STUDY ON THE SiC_p./Al-AllOY COMPOSITE AUTOMOTIVE BRAKE ROTORS

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Acta Metallurgica Sinica(English letters) 2000年第4期13卷 974-980页

作者： ding, Z.l. Fan, Y.C. Qi, H.B. Ren, D.l. Guo, J.B. Jiang, Z.Q. Shijiazhuang Railway Inst Shijiazhuang China

The SiCp/Al-alloy composite front brake rotors designed for Shanghai Santana cars were prepared by semi-solid stirring+liquid forging process. The composite brake rotors were subjected to dynamometer tests on a SCHENCK brake testing system, referring to Tl110 standard of VOlKSWAGEN Co. The friction coefficient and thermal response during fade testing and the wear performance of the composite rotors were studied as the functions of various parameters such as braking pressures, initial speeds, initial temperatures, torque and decelerations, and were compared with those of conventional cast iron rotors. The results show that the properties of the composite rotors can achieve the requirements of commercial cast iron rotors. The results also show that the friction coefficients of the composite rotors under different braking conditions are within the deviation band specified by the Tl110 standard, and the temperature rise of composite rotors is lower than that of cast iron rotors at the end of each fade stop. The wear resistance of composite rotors is higher than that of cast iron rotors. The friction mechanism and wear mechanism were analyzed.

关键词： Brakes Friction Metallic matrix composites Rotors Silicon carbide Wear resistance

Magnetic/Magnetostrictive Properties Together with Resistivity and Corrosion Behaviors of CoFe_2 and Its Composite with CoFe_2N

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Journal of Materials Science & Technology 2017年第7期33卷 744-750页

作者： B.Q.Geng Y.Q.Ma M.Wang Z.l.ding W.H.Song B.C.Zhao Key laboratory of Materials Physics Institute of Solid State Physics Chinese Academy of Sciences Hefei 230031 China

The CoFe_2alloy（CF） was prepared by reducing CoFe_2O_4 in the H_2 ambient. Subsequently the CF sample was nitrided in the NH_3 atmosphere to produce the composite of CoFe_2N and CoFe_2. The magnetostriction, thermal expansion, resistivity and corrosion resistance of CF sample and the nitrided sample（CFN）at 1000？C were investigated. The saturation magnetostriction coefficiency λ_s and thermal expansion coefficient ？ at 300 K for the nitrided CFN were 50 ppm and 10 ppm/K, respectively, approximately equal to those for the CF sample. However, compared with CF, CFN presents a decrease in temperature coefficient R_λ（300 K） of magnetostriction by 11%. The smaller resistivity and improved corrosion resistance in the H_2SO_4 solution may expand the applications of the CoFe_2 in the fields needing lower resistivity or in the acidic environment.

关键词： CoFe alloy CoFe_2N alloy Magnetostriction Resistivity Corrosion resistance

An Expert System Based on Multi-reasoning Mechanism for Port Machine Diagnosis

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Journal of Shipping and Ocean Engineering 2011年第2期1卷 101-108页

作者： Y. ding G.l. lin logistics Research Center Shanghai Maritime University Shanghai 200135 China

Expert system plays an important role in port machine diagnosis, which aims at automatic equipment test for higher availability and efficiency of port operations. In this study, a port machine diagnosis expert system is proposed based on multi-reasoning mechanism. Relying on the knowledge acquired from the experienced experts in the port machine engineering, the system builds a library of relative experience and a set of rules of reasoning and estimating. Multi-reasoning mechanism that simulates the decision-making process of domain experts is employed to achieve reliable diagnosis results. The reasoning machine integrates artificial neural network, uncertain decision making and decision tree, which complements each other by sustainable growing voting mechanism. The effect of this multi-reasoning mechanism is evaluated and validated by means of Matthew＇s Correlation Coefficient （MCC）. The system incorporating the mechanism is successfully designed, implemented and applied in Shanghai Port.

关键词： Port machine diagnosis multi-reasoning mechanism ANN uncertain decision making decision tree.

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特提斯地球动力系统研究新进展

中国科学：地球科学 2024年第3期54卷 892-896页

作者：丁林中国科学院青藏高原研究所青藏高原地球系统与资源环境全国重点实验室北京100101

特提斯洋(Tethyan Ocean)最早由奥地利地质学家Eduard Suess在1893年提出.欧洲地质学家通过对它的研究发展了现代地质学,但并未对板块构造理论的诞生提供核心科学支撑(Trümpy, 2001).随着研究的不断深入,特提斯的概念从一个中生代的大... 详细信息

特提斯洋(Tethyan Ocean)最早由奥地利地质学家Eduard Suess在1893年提出.欧洲地质学家通过对它的研究发展了现代地质学,但并未对板块构造理论的诞生提供核心科学支撑(Trümpy, 2001).随着研究的不断深入,特提斯的概念从一个中生代的大洋演变成涵盖整个显生宙的原特提斯、古特提斯和新特提斯三个长期演化的大洋(图1;吴福元等, 2020)。

关键词：板块构造理论地球动力系统特提斯吴福元地质学家显生宙