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Effect of SiO_(2) and B_(2)O_(3) on crystallization and structure of CaF2–CaO–Al_(2)O_(3)-based slag for electroslag remelting of ultra-supercritical rotor steel

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Journal of Iron and Steel Research International 2021年第12期28卷 1530-1540页

作者： Yi Huang Cheng-bin Shi Xiu-xiu Wan jiang-ling li Ding-li Zheng Jing li State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing100083China College of Materials Science and Engineering Chongqing UniversityChongqing400044China The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan430081HubeiChina

Regarding development of the dedicated slag for electroslag remelting,crystallization characteristics of the slag exert a strong influence on the initial solidification of liquid metal in mold and surface quality of as-cast *** crystallization behavior of CaF_(2)-CaO-Al_(2)O_(3)-based slag with varying SiO_(2)and B_(2)O_(3)contents and their correlation with the slag structure were *** SiO_(2)(0.24-8.95 mass%)and B_(2)O_(3)(0-3.20 mass%)contents lowers the crystallization temperature and suppresses the crystallization of the slag melts,as well as decreases the sizes of the crystalline *** crystalline phases precipitated during continuous cooling of the slag melts are faceted 11CaO·7Al_(2)O_(3)·CaF_(2),faceted or spherical CaF_(2),and non-faceted MgO·Al_(2)O_(3)(or MgO)in sequence irrespective of the SiO_(2)and B_(2)O_(3)contents of the *** polymerization degree of slag melts increases with increasing either SiO_(2)or B_(2)O_(3)*** crystallization of the slag melts is increasingly retarded with increasing the SiO_(2)and B_(2)O_(3)contents of the slag caused by increased component diffusion resistance originating from increased polymerization degree of the slag melts.

关键词： Crystallization Slag structure Polymerization degree Electroslag remelting Ultra-supercritical rotor steel

Clinical application of repetitive transcranial magnetic stimulation for post-traumatic stress disorder:A literature review

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World Journal of Clinical Cases 2021年第29期9卷 8658-8665页

作者： Peng Cheng Ying Zhou li-Zhi Xu Ya-Fei Chen Ruo-lin Hu Yi-ling Zou Ze-Xuan li li Zhang Qi Shun Xun Yu ling-jiang li Wei-Hui li National Clinical Research Center for Mental Disorders Department of PsychiatryThe Second Xiangya Hospital of Central South UniversityChangsha 410011Hunan ProvinceChina Xiangya Medical School The Second Xiangya HospitalCentral South UniversityChangsha 410011Hunan ProvinceChina Department of Psychiatry The Second Xiangya Hospital of Central South UniversityChangsha 410011Hunan ProvinceChina Research Center for Brain Science and Human-like Intelligence Xi’an Jiaotong UniversityXi’an 710049Shannxi ProvinceChina Product Department Solide Brain Medical TechnologyLtd.Xi’an 710043Shannxi ProvinceChina

The efficacy of traditional treatment for post-traumatic stress disorder(PTSD)is still *** transcranial magnetic stimulation(rTMS)has been widely used in the treatment of various types of mental disorders,including *** rTMS has been demonstrated to be effective in many cases,there are still arguments regarding its mechanism and *** review aims to summarize the origin,development,principle,and future direction of rTMS and introduce this neuro-stimulation therapy to relevant clinicians.

关键词： Repetitive transcranial magnetic stimulation Post-traumatic stress disorder Neuro-stimulation Physical therapy

A simulation study of field plate termination in Ga2O3 Schottky barrier diodes

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Chinese Physics B 2018年第12期27卷 455-460页

作者： Hui Wang ling-li jiang Xin-Peng lin Si-Qi Lei Hong-Yu Yu Department of Electrical and Electronic Engineering Southern University of Science and TechnologyShenzhen 518055China School of Electronic Science and Engineering Southeast UniversityNanjing 210096China Shenzhen Key Laboratory of The Third Generation Semiconductor Shenzhen 518055China Guangdong GaN Devices Engineering and Technical Research Center Shenzhen 518055China

In this work, the field plate termination is studied for Ga2O3Schottky barrier diodes(SBDs) by simulation. The influence of field plate overlap, dielectric material and thickness on the termination electric field distribution are *** is found that the optimal thickness increases with reverse bias increasing for all the three dielectrics of SiO2, Al2O3, and HfO2. As the thickness increases, the maximum electric field intensity decreases in SiO2and Al2O3, but increases in ***, it is found that SiO2and HfO2are suitable for the 600 V rate Ga2O3SBD, and Al2O3is suitable for both600 V and 1200 V rate Ga2O3SBD. In addition, the comparison of Ga2O3SBDs between the SiC and GaN counterpart reveals that for Ga2O3, the breakdown voltage bottleneck is the dielectric. While, for SiC and GaN, the bottleneck is mainly the semiconductor itself.

关键词： Ga_2O_3 Schottky barrier diode field plate termination technique

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Effect of electroacupuncture at Sibai on the gastric myoelectric acitivities of denervated rats

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World Journal of Gastroenterology 2006年第36期12卷 5897-5901页

作者： Xiao-Rong Chang Jie Yan Yan-ling Zhao jiang-Shang li Jian-Hua liu Jun-Feng He College of Acupuncture and Massage Hunan University of Traditional Chinese Medicine Changsha 410007 Hunan Province China

AIM： To explore the mechanism of the exciting effects of electro-acupuncture （EA） at Sibai on the gastric myoelectric activities. METHODS： A total of 32 rats were randomly divided into four groups. Through intraperitoneal injection with atropine （the anti-cholinergic agent by blockade of muscarinic receptors）, hexarnethonium （automatic nerve ganglion-blocking agent） and reserpine （anti-adrenergic agent by depleting the adrenergic nerve terminal of its norepinephrine store）, effects of EA at Sibai on the gastric myoelectric activities of the denervated rats were observed. RESULTS： After intraperitoneal injection of atropine and hexamethonium, the average amplitude and ratio of period to time in the phase of high activity of gastric myoelectric slow wave, and the average numbers of the peaks of gastric myoelectric fast wave were significantly decreased （P 〈 0.01, P 〈 0.05, P 〈 0.01）, while after intraperitoneal injection of reserpine, the aforementioned three parameters were increased （P 〈 0.01, P 〈 0.05, P 〈 0.01）. EA at Sibai point partially relieved the inhibitory effect of atropine and hexamethonium on the gastric myoelectric activities in the rats （P 〈 0.05 or P 〉 0.05）. CONCLUSION： Cholinergic and adrenergic nervous systems and autonomic nerve ganglion participate in the peripheral passage of the controlling effects of EA at Foot Yangming Channel on gastrointestinal tract.

关键词： Electro-acupuncture Rats Sibai Nerve block Gastric myoelectric activities

Pharmacokinetics and Pharmacodynamics of Subcutaneous Single Doses of Pegylated Human G-CSF Mutant(PEG30-rhG-CSF) in Beagle Dogs

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Chinese Journal of Clinical Oncology 2008年第5期5卷 326-332页

作者： Yongming Cai Zhengmin Chen ling jiang Ming li Changxiao liu State Key Laboratory of Pharmacokinetics and Pharmacodynamics Tianjin Institute of Pharmaceutical Research Tianjin 300193 China.

OBJECTIVE To compare the pharmacokinetics and pharmacodynamics of PEG30-rhG-CSF administered to beagle dogs at three different dosages with PEG20-rhG-CSF administered at one dosage, and to provide an experimental basis for clinical trials.METHODS Beagle dogs received single, subcutaneous doses of PEG30-rhG-CSF at 100, 200 and 400 μg/kg or PEG20-rhG-CSF at 200 μg/kg. PEG30-rhG-CSF and PEG20-rhG-CSF concentrations in serum were analyzed using an enzymeqinked immunosorbent assay （EliSA）. WBC, ANC and PLT counts of whole blood samples were measured using fully automated analytic instrumentation. Pharmacokinetic and pharmacodynamic parameters were calculated using DAS 2.0 statistical analysis software.METHODS Beagle dogs received single, subcutaneous doses of PEG30-rhG-CSF at 100, 200 and 400 μg/kg or PEG20-rhG-CSF at 200μg/kg. PEG30-rhG-CSF and PEG20-rhG-CSF concentrations in serum were analyzed using an enzyme-linked immunosorbent assay （EliSA）. WBC, ANC and PLT counts of whole blood samples were measured using fully automated analytic instrumentation. Pharmacokinetic and pharmacodynamic parameters were calculated using DAS 2.0 statistical analysis software. RESULTS The pharmacokinetic parameters of PEG30-rhG-CSF calculated from the serum concentration data determined by EliSA were as follows： the mean elimination half-life （t1/2ke） was 40.6 h （33.5-45.4 h）; the mean time to reach peak concentration （Tmax） was 19.2 h （11.7-24.0 h）; the drug clearance from the serum （CL） was decreased with increasing doses; the peak concentration （Cmax） and the area under the serum concentration-time curve （AUC） were increased with increasing doses. For PEG20-rhG- CSF, the half-life was shorter （12 h） and Tmax was achieved much earlier （10 h） relative to PEG30-rhG-CSF. The AUC of PEG30- rhG-CSF was much greater than that of PEG20-rhG-CSF, and the relative bioavailability with a subcutaneous injection was 158.7%. Administration of single doses of PEG30-rhG-CSF resulted in substanti

关键词： PEG30-rhG-CSF PEG20-rhG-CSF pharmacoki-netics pharmacodynamics ANC EliSA beagle dogs.

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Virulence Phenotyping and Molecular Characterization of a Low-pathogenicity Isolate of listeria monocytogenes from Cow's Milk

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Acta Biochimica et Biophysica Sinica 2006年第4期38卷 262-270页

作者： ling-li jiang Jing-Jing XU Ning CHEN jiang-Bing SHUAI Wei-Huan FANG* Institute of Preventive Veterinary Medicine,Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine,Zhejiang University,Hangzhou 310029,China Institute of Preventive Veterinary Medicine Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine Zhejiang UniversityHangzhou 310029 China

A low-pathogenicity isolate of listeria monocytogenes from cow’s milk,as screened in mouseand chicken embryonated egg models,was examined for virulence-related phenotypic *** genes (iap,prfA,plcA,hly,mpl,actA,plcB,InlA and InlB) were compared with *** strains 10403S and EGD to elucidate the possible molecular mechanisms of low ***-though *** H4 exhibited similar patterns to strain 10403S in terms of hemolytic activity,invitro growth and invasiveness and even had higher adhesiveness,faster intracellular growth and higherphospholipase activity in vitro,it was substantially less virulent than the strain 10403S in mouse and chickenembryo models (50% lethal dose:10vs.10and 10vs.10,respectively).The genes prfA,plcA andmpl were homologous among *** strains H4,10403S and EGD (>98%).Genes iap,hly,plcB,InlA and InIB of *** 10403S had higher homology to those of strain EGD (>98%) than *** homology of the gene hly between strain 10403S and isolate H4 was 96.9% at the nucleotide level,but 98.7% at the amino acid *** actA gene of isolate H4 had deletions of 105 nucleotides correspondingto 35 amino acid deletions falling Within the proline-rich *** together,this study presents someclues as to reduced virulence to mice and chicken embryos of the isolate H4 probably as a result of deletionmutations of actA.

关键词： listeria monocytogenes virulence factor virulence-associated gene

SPECTROSCOPIC PROPERTIES OF THE PHYCOBIliNS AND THEIR DERIVATIVES

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Chinese Chemical Letters 1991年第7期2卷 589-592页

作者： ling jiang CHENG li Jin jiang Institute of Photographic Chemistry,Chinese Academy of Sciences,Beijing 100101

The UV-VIS spectroscopic studies of phycoerythrobilin dimethyl ester, phycocyanobilin dimethyl ester and their derivatives indicate that shortening of the conjugative systems induces hypsochromic shifts in wavelength and increases in molar extinction coefficients in visible part;both zinc ion coordination and acetic acid treatment induce bathochromic effects for the phycobilins and their derivatives.

关键词： UV VIS SPECTROSCOPIC PROPERTIES OF THE PHYCOBIliNS AND THEIR DERIVATIVES

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Posttraumatic stress disorder:a disease of memory disorder?

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Posttraumatic stress disorder:a disease of memory disorder?

An Improved Kernel K-Mean Cluster Method and Its Application in Fault Diagnosis of Roller Bearing

中国神经科学学会第十届全国学术会议

作者： ling-jiang li Ze-Xuan li Mental health Institute The Second Xiangya HospitalCentral South University

Posttraumatic stress disorder（PTSD）,a mental disorder resulting from psychological trauma,is characterized by re-experiencing of the trauma intruding in the victim’s consciousness or dreams,high vigilance,and social withdrawal and avoidance of clues concerning the trauma ***,it is not strange that PTSD patients suffer from devastating social dysfunction,wim about one third of them never remitting,over half of them indulging in substance abuse or being co-morbid with omer mental disorders and the suicide rate in mem being 6 times as much as that in healthy *** the psychological mechanisms of PTSD is distinctive memory impairment which features in impaired procedural memory and pamologically enhanced non-procedural ***,one problem is raised whether such memory impairment has abnormal basis of brain function and ***-to-date studies demonstrate that the impairment of cognitive neural circuit centered prefrontal lobe,causing me function of emotional neural circuit centered amygdala out of control,may make the neural substrate of memory impairment in ***,we review the state of the art on this problem for PTSD,followed by perspective for future study.

关键词： PTSD cognitive neural circuit emotional neural circuit memory disorder

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Engineering（科研） 2013年第1期5卷 44-49页

作者： ling-li jiang Yu-Xiang Cao Hua-Kui Yin Kong-Shu Deng Engineering Research Center of Advanced Mining Equipment Ministry of Education Hunan University of Science and Technology Xiangtan China Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment Hunan University of Science and Technology Xiangtan China

For the kernel K-mean cluster method is run in an implicit feature space, the initial and iterative cluster centers cannot be defined explicitly. Against the deficiency of the initial cluster centers selected in the original space discretionarily in the existing methods, this paper proposes a new method for ensuring the clustering center that virtual clustering centers are defined in the feature space by the original classification as the initial cluster centers and the iteration clustering centers are ensured by the further virtual classification. The improved method is used for fault diagnosis of roller bearing that achieves a good cluster and diagnosis result, which demonstrates the effectiveness of the proposed method.

关键词： Improved Kernel K-Mean Cluster Fault Diagnosis Roller Bearing