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Excess-iron driven spin glass phase in Fe_(1+y)Te_(1-x)S_(ex)

Chinese Physics B 2021年第8期30卷 169-175页

作者： long tian Panpan Liu Tao Hong Tilo Seydel Xingye Lu Huiqian Luo Shiliang Li Pengcheng Dai Center for Advanced Quantum Studies and Department of Physics Beijing Normal UniversityBeijing 100875China Neutron Scattering Division Oak Ridge National LaboratoryOak RidgeTN 37831USA Institut Max von Laue-Paul Langevin(ILL) 71 Avenue des MartyrsCS 2015638042 Grenoble Cedex 9France Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China Department of Physics and Astronomy Rice UniversityHoustonTX 77005USA

The iron-chalcogenide superconductor FeTe_(1-x)Se_(x) displays a variety of exotic features distinct from iron *** much effort has been devoted to understanding the interplay between magnetism and superconductivity near x=0.5,the existence of a spin glass phase with short-range magnetic order in the doping range(x~0.1-0.3)has rarely been ***,we use DC/AC magnetization and(quasi)elastic neutron scattering to confirm the spin-glass nature of the short-range magnetic order in a Fe_(1.07)Te_(0.8)Se_(0.2) *** AC-frequency dependent spin-freezing temperature T_(f) generates a frequency sensitivityΔT_(f)(ω)/[T_(f)(ω)Δlog_(10)ω]≈0.028 and the description of the critical slowing down withτ=τ0(T_(f)/T_(SG-1))^(-zv) gives T_(SG)≈22 K and zv≈10,comparable to that of a classical spin-glass *** have also extended the frequency-dependent T_(f) to the smaller time scale using energy-resolution-dependent neutron diffraction measurements,in which the T_(N) of the short-range magnetic order increases systematically with increasing energy *** removing the excess iron through annealing in oxygen,the spin-freezing behavior disappears,and bulk superconductivity is ***,the excess Fe is the driving force for the formation of the spin-glass phase detrimental to bulk superconductivity.

关键词： iron chalcogenides spin glass neutron scattering

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Geriatric Anesthesia-related Morbidity and Mortality in China： Current Status and Trend

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Chinese Medical Journal 2017年第22期130卷 2738-2749页

作者： Yang Liu Wei Xiao Ling-Zhong Meng tian-long Wang Department of Anesthesiology and Operating Theatre Xuanwu Hospital Capital Medical University Beijing 100053 China Department of Anesthesiology Yale University School of Medicine New Haven CT 06520 USA

Objective： The population of elderly patients and the amount of geriatric anesthesia have been growing rapidly in China. Thus, understanding the morbidity and mortality associated with geriatric anesthesia in China is critical to the improvement of anesthesia quality and outcome. The aim of the review was to discuss the geriatric anesthesia-related morbidity and mortality in China, as well as to point out the future trend. Data Sources： Articles in this review were all searched from Wanfang, China National Knowledge Infrastructure （CNKI）, VIP, PubMed, and Web of Science databases, based on the reports originated in China from January 2011 to December 2016. Study Selection： A total of 57 studies were selected for further study, including 12 retrospective studies, 35 prospective studies, 3 meta-analyses, 4 reviews, 1 viewpoint, and 2 case reports. Of the total studies, 42 studies were in Chinese while 15 were in English. Results： The mortality and morbidity associated with geriatric anesthesia in China are not yet completely reported. Some factors have been recognized, while some are yet to be identified and confirmed. Several studies addressed postoperative cognitive dysfunction and postoperative delirium, whereas only a few studies can be found on renal complications. Thus, a nationwide registry is essential for geriatric anesthesia-associated adverse outcomes. The mortality associated with geriatric anesthesia in China should be reported promptly. In the future, the perspective of geriatric anesthesia needs to be expanded into perioperative geriatric medicine to improve the perioperative management strategy based on the postoperative outcome-directed concept transformation. Conclusions： Anesthesiologists should evaluate the physiological and medical status and focus on the prevention of potential complications in the perioperative setting with the goal to enhance elderly patients＇ long-term well-being and survival quality.

关键词： Anesthesia China Geriatric Morbidity Mortality

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草酸酪氨酸离子液体水解小麦秸秆制备还原糖的研究

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太阳能学报 2019年第6期40卷 1672-1676页

作者：柴春月田龙南阳师范学院生命科学与技术学院

以小麦秸秆为原料,考察草酸酪氨酸离子液体对小麦秸秆的低温高效水解性能。研究离子液体种类、离子液体用量、反应温度、反应时间4个因素对总转化率、葡萄糖收率、木糖收率等评价指标的影响。草酸酪氨酸离子液体水解秸秆的最佳工艺条件... 详细信息

以小麦秸秆为原料,考察草酸酪氨酸离子液体对小麦秸秆的低温高效水解性能。研究离子液体种类、离子液体用量、反应温度、反应时间4个因素对总转化率、葡萄糖收率、木糖收率等评价指标的影响。草酸酪氨酸离子液体水解秸秆的最佳工艺条件为:反应时间3 h,反应温度90℃,离子液体用量0.4 mmol,此条件下的总还原糖收率为86.3%。所制备的草酸酪氨酸离子液体具有良好的循环利用性能,在5次重复使用之后,其对小麦秸秆转化率仍较高。

关键词：生物质离子液体水解还原糖

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Noise transfer of pump field noise with analysis frequency in a broadband parametric downconversion process

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Chinese Optics Letters 2021年第5期19卷 96-99页

作者： Yajun Wang Yuhang tian Xiaocong Sun long tian Yaohui Zheng State Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Opto-ElectronicsShanxi UniversityTaiyuan 030006China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

Our previous work had proved pump field noise coupling in the seed field injected optical parametric amplifier(OPA)at a certain analysis *** by this noise coupling mechanism,the frequency dependent squeezing factor due to excess pump noise was experimentally *** from a reduced squeezing level with an increased noise,the results also prove that a broadband squeezing noise spectrum is not frequency dependent on the amplitude modulated pump field,but limited by the bandwidth of the amplitude modulator and OPA resonator,and the effective measurement is carried out in the frequency range of 2–10 *** provides a guidance to design a broader-bandwidth,higher-level bright squeezed light.

关键词： quantum optics nonlinear optics parametric processes squeezed states

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Magnetic Resonance Urography and X-ray Urography Findings of Congenital Megaureter

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Chinese Medical Sciences Journal 2011年第2期26卷 103-108页

作者： tian-ran Li Xiang-ke Du tian-long Huo Department of Radiology Peking University People＇s Hospital Beijing 100044 China

Objective To observe the imaging findings of congenital megaureter in order to enhance the understanding of this disease. Methods Image data of 5 patients with congenital megaureter and 2 misdiagnosed patients were analyzed, and image findings of congenital megaureter were summarized. Elscint Prestig 2.0T superconductive magnetic resonance urography （MRLI） with conventional sequence （spin-echo, T 1W1560 ms/16 ms; fast spin-echo, T2WI 9600 ms/96 ms） was performed. Raw data were acquired with fast spin-echo sequence from heavy T2-weighted image （9600 ms/120 ms）. Post-processing method of MRH was the maximum in- tensity projection with three-dimensional reconstruction in the workstation. Intravenous pyelography （IVP） was conducted, in which X-ray films were taken 7 minutes, 15 minutes, and 30 minutes after injecting contrast agent, except that in 2 patients the films were taken delayed at 60 and 90 minutes. X-ray retrograde pyelography was performed on 2 patients, successful in one but failed in the other. Results The dilated ureter showed hypointensity on T1-weighted images and hyperintensity on T2-weighted images in conventional MRI. The mass wall was intact, uniform in thickness, and showing hy- pointensity on Tl-weighted and T2-weighted images. The MRH images showed a retroperitoneal mass appearing as an elongated tubular cystic structure spreading from kidney to bladder. MRLI also revealed dilated calices and renal pelvis, pelviureteric obstruction, and renal duplication. The main signs of congenital megaureter in X-urography was significant dilatation of ureter, or normal renal pelvis with ureter dilatation, hydronephrosis, deformity, and displacement. Conclusions MRH with X-urography could visualize the characteristics of congenital megaureter, including the dilation of renal pelvis and ureter, calculi, urinary tract duplication, and stenosis location. The two techniques can complement each other in disease diagnosis and provide more detailed information for

关键词： congenital megaureter magnetic resonance urography intravenous pyelo-graphy

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Identification of Soybean Resources of Resistance to Aphids

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Agricultural Sciences in China 2009年第8期8卷 979-984页

作者： WU tian-long,MA Xiao-hong,YAO Lu-ming and WANG Biao School of Agriculture and Biology,Shanghai Jiao Tong University,Shanghai 200240,P.R.China [a]School of Agriculture and Biology Shanghai Jiao Tong University Shanghai 200240 P. R. China

Four soybean [Glycine max （L.） Merr.] cultivars with soybean aphid resistance （Aphis glycines Matsmura）, p189, P203, P574, and P746, were identified in field test, choice test, and non-choice test, The grade of resistance to aphids and the damage index of P189, P203, and P746 were significantly different from the susceptible cultivars （P=0.05）. P574 and P746 showed antibiosis resistance, preventing aphids from reproducing on the plants. P203 showed antixenosis resistance, preventing aphids from reproducing in field test and choice test, but susceptible in non-choice test. Population development on plants was significantly different in field test, choice test, and non-choice test, which was caused by different selective pressures.

关键词： Aphis glycines Matsmura resistance to aphids antibiosis antixenosis

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Determination of trace arsenic(V) by catalytic solid substrate-room temperature phosphorescence quenching method

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Chinese Chemical Letters 2007年第6期18卷 711-713页

作者： Guo Hui Zhu Zhi Ming Li Xiao Hua Chen Jia Ming Liu tian long Yang Wen Qian Zhang Shao Xian Lin Ping Zhou Department of Food and Biological Engineering Zhangzhou Institute of Technology Zhangzhou 363000 China Department of Chemistry and Environmental Science Zhangzhou Normal College Zhangzhou 363000 China

In the H2SO4 medium and in the presence of dodecylbenzene sulfonic acid sodiumsalt (DBS), dimethyl yellow (R) could emit strong and stable solid substrate room temperature phosphorescence (RTP) on filter paper. And NaIO4 could oxidize R to cause the RTP quenching. Arsenic(V) could catalyze the reaction of NaIO4 oxidizing R, which caused the RTP sharply quenching. The reducing value of phosphorescence intensity (ΔIp) for the system with DBS is 3.3 times higher than that without DBS. Moreover, the ΔIp is proportional to the concentration of As(V). Based on the facts above, a new RTP quenching method for the determination of trace As(V) has been established.

关键词： Arsenic(V) Dimethyl yellow Catalytic solid substrate-room temperature phosphorescence quenching method

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Restenosis after recanalization for Budd-Chiari syndrome: Management and long-term results of 60 patients

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World Journal of Clinical Cases 2020年第14期8卷 2930-2941页

作者： Wei Zhang Yu-long tian Qiao-Zheng Wang Xiao-Wei Chen Qi-Yang Li Jin-Hang Han Xu-Dong Chen Ke Xu Department of Interventional Radiology Shenzhen People’s Hospitalthe Second Affiliated Hospital of Jinan UniversityShenzhen 518020Guangdong ProvinceChina Department of Interventional Radiology The First Affiliated Hospital of China Medical UniversityShenyang 110001Liaoning ProvinceChina

BACKGROUND Budd-Chiari syndrome is defined as hepatic venous outflow tract *** Asian Budd-Chiari syndrome patients,the major treatment modality is recanalization(percutaneous transluminal angioplasty with or without stent implantation).The cumulative 1-,5-,and 10-year primary patency rates and survival rates are reported to be excellent or satisfactory,but the long-term outcome of patients with restenosis(the most common complication after recanalization)is *** To explore the treatment strategy for restenosis in patients with Budd-Chiari syndrome after interventional therapy and to evaluate the long-term follow-up *** The clinical data and follow-up results of 60 patients with restenosis after interventional therapy from November 1983 to December 2013 were retrospectively *** Sixty patients with restenosis were retrospectively divided into a percutaneous transluminal angioplasty(PTA)group(40 patients)and a PTA+stent group(20 patients)according to the primary recanalization *** the patients with restenosis in the PTA group,13 refused treatment,and 27 received further treatment;among these patients,five had a second restenosis,two had a third restenosis,and one had a fourth *** the patients with restenosis in the PTA+stent group,nine refused treatment,ten received PTA alone,and the other received PTA+stent *** the patients who received further treatment,five had a second restenosis,three had a third restenosis,and one had a fourth *** 1-,5-,10-,20-,and 25-year cumulative survival rates of the 38 patients who received further treatment after restenosis were 100%,78.3%,78.3%,70.5%,and 70.5%,respectively;however,for the 22 patients who refused treatment,the survival rates were 72.7%,45.9%,30.6%,10.2%,and unavailable,respectively(Plong-term follow-up after interventional therapy is very *** treatment for patients with restenosis can improve prognosis,an

关键词： Budd-Chiari syndrome Restenosis long-term follow-up Treatment strategy

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Myrrh extract alleviated ROS-mediated ferroptosis through regulating TXNIP/NLRP3 axis in ischemic stroke

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中国药理学与毒理学杂志 2019年第9期33卷 667-668页

作者： LIU tian-long WANG Wen-jun DING Yi WEN Ai-dong ZHANG Ru-xue Department of Pharmacy Key Laboratory of Prevention and Cure for the Plateau Environmental Damage of PLA940 Hospital of PLA Joint Logistics Support ForcesLanzhou 730050China Department of Pharmacy Xijing HospitalFourth Military Medical UniversityXi′an 710032China

OBJECTIVE To investigate the neuroprotective effects and exact mechanisms of myrrh extract following cerebral ischemic *** Male rats were randomly divided into three groups:sham group,middle cerebral artery occlusion(MCAO)group and myrrh *** changes were assessed after 7 d of myrrh *** analysis with circulating mRNA was performed to identify differential gene expression profile,gene ontology and pathway enrichment analyses were carried out to predict the gene *** co-expression and pathway networks were constructed to identify the potential *** markers of oxidative stress,inflammatory reaction and ferroptosis in the cerebral cortex were detected by ELISA *** identified hub pathways and genes were validated by western blotting,immunofluorescence and immunohistochemistry *** were exposed to transient oxygen-glucose deprivation(OGD)to model ischemia-like ***-TXNIP were transfected in OGD-induced neurons to explore the *** Myrrh extract significantly alleviated neurological deficits,infarct volume and histo⁃pathological damage in MCAO rats.A total of 2200 differentially expressed genes were identified among the three ***-reduction process,inflammatory response,ferroptosis were enriched as the significant gene ontology ***-like receptor signaling were identified as the hub pathway based on the pathway relation *** and NLRP3 were screened as the potential targets by a time sequence profile *** levels of IL-1β,IL-18,TNF-α,MDA and TFR in brain tissues were increased while the CAT,SOD,GSH-px and GPX4 levels were significantly decreased in MCAO *** expected,myrrh extract greatly reversed these *** similarly results were also observed in OGD treated neuron *** elevated expressions of TXNIP and NLRP3 induced by OGD were success⁃fully inhibited by myrrh *** of TXNIP significantly alleviated OGD-induce

关键词： myrrh extract ischemic stroke ferroptosis NLRP3 inflammasome thioredoxin-interacting protein reac⁃tive oxygen species

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基于模型检验集成规划系统的机械装配序列规划

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计算机集成制造系统 2008年第9期14卷 1781-1790页

作者：古天龙张勐桂林电子科技大学计算机学院广西桂林541004

为探索机械装配序列规划的新技术,剖析了模型检验集成规划系统和规划领域定义语言,根据一般智能规划问题的形式化定义对机械装配序列规划问题进行了形式化描述;基于装配和拆卸可逆的前提假设,利用谓词逻辑公式和时态逻辑公式对机械装配... 详细信息

为探索机械装配序列规划的新技术,剖析了模型检验集成规划系统和规划领域定义语言,根据一般智能规划问题的形式化定义对机械装配序列规划问题进行了形式化描述;基于装配和拆卸可逆的前提假设,利用谓词逻辑公式和时态逻辑公式对机械装配过程中的硬约束和软约束进行了描述;根据装配序列规划问题的形式化描述,对装配序列规划领域及领域的具体问题进行了定义,给出了基于模型检验集成规划系统的装配序列规划问题的求解过程。实验结果表明,该系统可以正确、有效地实施机械装配序列规划。

关键词：装配序列规划模型检验规划领域定义语言谓词逻辑时态逻辑

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