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PREPARATION AND CHARACTERIZATION OF INCLUSION COMPLEXES OF TWO-ARM LINEAR AND FOUR-ARM STAR-SHAPED POLY(ε-CAPROLACTONE)S WITHα-CYCLODEXTRIN

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Chinese Journal of Polymer Science 2006年第3期24卷 245-252页

作者： Lu Wang jing-liang Wang 董常明 Department of Polymer Science ＆ Engineering School of Chemistry and Chemical Technology Shanghai Jiao Tong University Shanghai 200240 China

Both four-ann star-shaped poly（ε-caprolactone）（4sPCL） and two-ann linear PCL （2LPCL） were synthesized and their inclusion complexation with α-cyclodextrin （α-CD） were studied. The inclusion complexes （ICs） formed between the PCL polymers and α-CD were characterized by ^1H-NMR, DSC, TGA, WAXD, and FT-1R, respectively. Both branch ann number and molecular weight of the PCL polymers have apparent effect on the stoichiometry （CL：CD, mol：mol） of these ICs. All these analytical results indicate that the branch arms of the PCL polymers are incorporated into the hydrophobic α-CD cavities and their original crystalline properties are completely suppressed. Moreover, the inclusion complexation between two-ann linear or four-ann star-shaped PCL polymers and α-CD not only enhances the thermal stability of the guest PCL polymers but also improves that of α-CD.

关键词： Inclusion complexes Linear poly(ε-caprolactone) Star-shaped poly(ε-caprolactone) Thermal stability.

Quantum Codes from Constacyclic Codes over Polynomial Residue Rings

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Chinese Journal of Electronics 2019年第6期28卷 1131-1138页

作者： DING Jian LI Hongju liang jing TANG Yongsheng College of Mathematics and Informatics Fujian Normal University Fujian Provincial Key Lab of Network Security and Cryptology Fujian Normal University Department of General Education Anhui Xinhua University School of Mathematics and Statistics Hefei Normal University

Sufficient and necessary conditions for Hermitian（1 + λu）-constacyclic self-orthogonal codes over F;m +uF;m are obtained, where λ is a unit of F;m +uF;*** on this, a new method for the construction of p;ary quantum codes from the obtained Hermitian（1 + λu）-constacyclic self-orthogonal codes over F;m +uF;m is *** an example, [[p;-1, p;-2d + 1, d]];m quantum MDS codes are constructed for 1 ≤ d ≤（p;+ 1）/2 and p ≠ 2, as well as some other quantum codes.

关键词： Quantum code Quantum MDS code Constacyclic code Self-orthogonal code

Massive Particles' de Sitter Tunneling in (3+1)-Dimensional de Sitter Spacetimes

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Communications in Theoretical Physics 2008年第11期50卷 1258-1260页

作者： ZHOU liang ZHANG jing-Yi Center for Astrophysics Guangzhou University Guangzhou 510006 China

In this paper,massive particles' Hawking radiation via tunneling from cosmological horizon of a(3+1)-dimensional de Sitter spacetime is *** to Parikh's theory,when a particle tunnels across the cos-mological horizon,the effective geometry is Schwarzschild-de Sitter *** this effective spacetime,a massiveparticle can be treated as a de Broglie *** method is *** emission spectrum is obtained,and it takesthe same functional form as that of massless particles.

关键词： black hole Hawking radiation quantum theory

Emerging molecular basis of hematogenous metastasis in gastric cancer

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World Journal of Gastroenterology 2016年第8期22卷 2434-2440页

作者： jing Zhong Yan Chen liang-jing Wang Department of Gastroenterology the Second Affiliated Hospital School of Medicine and Institute of Gastroenterology Zhejiang University

Lymphatic metastasis is commonly observed in gastric cancer(GC), but hematogenous metastasis is more likely responsible for the cancer-related mortality. Since Stephen Paget first introduced the "seed and soil hypothesis" a century ago, growing evidence recognizes that numerous essential secreted factors and signaling pathway effectors participate in the pre-metastatic niche formation and distant organ metastasis. The cross-talk between GC cells and surrounding microenvironment may consist of a series of interrelated steps, including epithelial mesenchymal transition, intravasation into blood vessels, circulating tumor cell translocation, and secondary organ metastasis. Secreted factors including vascular endothelial growth factor(VEGF), matrix metalloproteinases and cancer-derived extracellular vesicles, especially exosomes, are essential in formation of premetastatic niche. Circulating tumor cells and micro RNAs represent as ‘‘metastatic intermediates' ' between primary tumors and sites of dissemination. Many biomarkers have been identified as novel metastatic markers and prognostic effectors. In addition, molecular therapy has been designed to target biomarkers such as growth factors(human epidermal growth factor receptor 2, VEGF) and chemokines, although they have not clearly proven to be effective in inhibiting GC metastasis in clinical trials. In this review, we will systematically discuss the emerging molecules and their microenvironment in hematogenous metastasis of GC, which may help us to find new therapeutic strategies in the future.

关键词： Gastric cancer Metastasis Molecular mechanism

A Survey of Truck-Drone Routing Problem:Literature Review and Research Prospects

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Journal of the Operations Research Society of China 2022年第2期10卷 343-377页

作者： Yi-jing liang Zhi-Xing Luo School of Traffic and Transport Engineering Changsha University of Science and TechnologyChangsha 410114HunanChina School of Management and Engineering Nanjing UniversityNanjing 210093JiangsuChina

The vehicle routing problem(VRP)has been an important research topic in operations research for *** major applications of the VRP arise in transportation,especially the last-mile *** recent years,a growing number of logistic companies introduce drones or unmanned aerial vehicles in the delivery ***,the truck-drone routing problem(TDRP),where trucks and drones are scheduled and coordinated to serve customers,vitalizes a new research stream in the *** this paper,we provide a comprehensive review on the ***,two basic models for the traveling salesman problem with drones and vehicle routing problem with drones are ***,researches devoted to the TDRP are classified according to their addressed constraints and ***,prevalent algorithms that have been widely used in the existing literature are reviewed and ***,potential research opportunities are identified for future study.

关键词： Drone Unmanned aerial vehicle Truck-drone routing Traveling salesman routing Vehicle routing

Cracking on a nickel-based superalloy fabricated by direct energy deposition

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China Foundry 2024年第4期21卷 311-318页

作者： Xue Zhang Ya-hang Mu liang Ma jing-jing liang Yi-zhou Zhou Xiao-feng Sun Jin-guo Li School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China Shi-changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering Northeastern UniversityShenyang 110819China

Cracks have consistently been a significant challenge limiting the development of additive manufactured nickel-based *** is essential to investigate the location of cracks and their forming *** study extensively examines the impact of solidification process,microstructural evolution,and stress concentration on crack initiation during direct energy deposition(DED).The results emphasize that the crack formation is significantly related to large-angle grain boundaries,rapid cooling *** caused by large-angle grain boundaries and a fast-cooling rate predominantly appear near the edge of the deposited *** cracks are more likely to form near the top of the deposited sample,due to the presence ofγ/γ'*** secondary dendritic arm and the carbides in the interdendritic regions can obstruct liquid flow during the final stage of solidification,which results in the formation of solidification cracks and *** work paves the way to avoid cracks in nickel-based superalloys fabricated by DED,thereby enhancing the performance of superalloys.

关键词： location cracks direct energy deposition nickel-based superalloys

New trajectory linearization control for nonlinear systems undergoing harmonic disturbance

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Journal of Systems Engineering and Electronics 2009年第3期20卷 571-576页

作者： Zhu liang Chen Li jing Zhongliang Hu Shiqiang School of Aeronautics and Astronautics Shanghai Jiaotong Univ. Shanghai 200240 P. R. China

This paper presents a new trajectory linearization control scheme for a class of nonlinear systems subject to harmonic disturbance. It is supposed that the frequency of the disturbance is known, but the amplitude and the phase are unknown. A disturbance observer dynamics is constructed to estimate the harmonic disturbance, and then the estimation is used to implement a compensation control law to cancel the disturbance. By Lyapunov＇s direct method, a rigorous poof shows that the composite error of the closed-loop system can approach zero exponentially. Finally, the proposed method is illustrated by the application to control of an inverted pendulum. Compared with two existing methods, the proposed method demonstrates better performance in tracking error and response time.

关键词： nonlinear control system, harmonic disturbance trajectory linearization control

Alterations of intestinal flora and the effects of probiotics in children with recurrent respiratory tract infection

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World Journal of Pediatrics 2019年第3期15卷 255-261页

作者： Ke-liang Li Ben-Zhen Wang Zi-Pu Li Yi-Lei Li jing-jing liang Heart Center.Women’s and Children’s Hospital Affiliated to Qingdao University Qingdao Women’s and Children’s Hospital6 Tongfu RoadQingdao 266034ShandongChina Department of Pediatrics.Rizhao People’s Hospital.1 26 Taian Road Rizhao 276800ShandongChina Clinical Laboratory.Rizhao People’s Hospital.1 26 Taian Road Rizhao 276800ShandongChina

Background Recurrent respiratory tract infection (RRTI) is a disease occurred frequently in preschool *** A total of 120 RRTI children were randomly divided into active group,remission group,intervention group and control group,meanwhile 30 healthy children were selected as the healthy *** in the intervention group were given oral Bifidobaeterium tetravaccine tablets (Live) for 2 months,while the control group received routine *** sample were detected to analyze the bacterial *** occurrence of respiratory tract infection (RTI) was compared between different groups during 1 year *** Compared with the healthy group,the number of Bifidobacteria and Lactobacilli in the active group,remission group,intervention group and control group was significantly decreased (P < 0.05).The number of Bifidobacteria and Lactobacilli in the intervention group was significantly higher compared to other RRTI groups (P < 0.05).During the follow-up period,the average annual frequency of different acute RTI and use of antibiotics were significantly reduced (P < 0.05),the average duration of cough,fever and use of antibiotics at each episode were also significantly shortened (P < 0.05) in the intervention group compared to the control *** Children with RRTI are susceptible to intestinal flora *** probiotics can effectively improve the RRTI intestinal microecological balance in children and reduce the frequency of RTI.

关键词： Children Intestinal flora Probiotics Respiratory tract infections

Inverse Spin Hall Effect in Two-Terminal Device with Rashba Spin-Orbit Coupling

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Communications in Theoretical Physics 2009年第12期52卷 1107-1112页

作者： ZHANG jing-jing liang Feng YANG Yong-Hong WANG Jun Department of Physics Southeast University Nanjing 211189 China

We report a theoretic study on the inverse spin-Hall effect （ISHE） in a two-terminal nano-device that consists of a two-dimensional electron gas （2DEG） with Rashba spin-orbit coupling （RSOC） and two ideal leads. Based on a two-site toy model and Keldysh Green＇s function method, we derive an analytic result of ISHE, which shows clearly that a nonzero transverse charge current stems from the combined effect of the RSOC, the spin bias, and its spin polarization direction in spin space. Our further numerical calculations in a larger system other than two-site lattice model demonstrate that the transverse charge current, dependent on the strength of the RSOC, the Fermi energy of the system, as well as the system size, can exhibit oscillating behavior and even reverse its sign due to Rashba spin precession. These properties may be helpful for eficient detection of the spin current （spin bias） by measuring the transverse charge current in a spin-orbital coupling system.

关键词： spin Hall effect spin-orbital coupling inverse spin-Hall effect Keldysh Green's function