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157篇 您的检索式:作者名="ZHANG Xiaomeng"
    题名 作者 年代 出处 被引量
1The Sunway TaihuLight supercomputer: system and applications显示文摘The Sunway Taihu Light supercomputer is the world's first system with a peak performance greater than 100 PFlops. In this paper, we provide a detailed introduction to the Taihu Light system. In contrast with other existing heterogeneous supercomputers, which include both CPU processors and PCIe-connected many-core accelerators(NVIDIA GPU or Intel Xeon Phi), the computing power of Taihu Light is provided by a homegrown many-core SW26010 CPU that includes both the management processing elements(MPEs)and computing processing elements(CPEs) in one chip. With 260 processing elements in one CPU, a single SW26010 provides a peak performance of over three TFlops. To alleviate the memory bandwidth bottleneck in most applications, each CPE comes with a scratch pad memory, which serves as a user-controlled cache. To support the parallelization of programs on the new many-core architecture, in addition to the basic C/C++and Fortran compilers, the system provides a customized Sunway Open ACC tool that supports the Open ACC2.0 syntax. This paper also reports our preliminary efforts on developing and optimizing applications on the Taihu Light system, focusing on key application domains, such as earth system modeling, ocean surface wave modeling, atomistic simulation, and phase-field simulation.Haohuan FU Junfeng LIAO Jinzhe YANG Lanning WANG Zhenya SONG Xiaomeng HUANG Chao YANG Wei XUE Fangfang LIU Fangli QIAO Wei ZHAO Xunqiang YIN Chaofeng HOU Chenglong ZHANG Wei GE Jian ZHANG Yangang WANG Chunbo ZHOU Guangwen YANG 2016Science China(Information Sciences)2016,59,7:45
2SIRT6 safeguards human mesenchymal stem cells from oxidative stress by coactivating NRF2显示文摘Huize Pan Di Guan Xiaomeng Liu Jingyi Li Lixia Wang Jun Wu Junzhi Zhou Weizhou Zhang Ruotong Ren Weiqi Zhang Ying Li Jiping Yang Ying Hao Tingting Yuan Guohong Yuan Hu Wang Zhenyu Ju Zhiyong Mao Jian Li Jing Qu FuchouTang Guang-Hui Liu 2016Cell Research2016,26,2:32
3Danshenchuanxiongqin injection in the treatment of unstable angina pectoris: a systematic review and Meta-analysis显示文摘OBJECTIVE:To evaluate systematically the efficacy and safety of Danshenchuanxiongqin Injection(DCI)in the treatment of unstable angina pectoris(UAP).METHODS:Randomized controlled trials(RCTs)regarding DCI used for treating UAP were searched in English and Chinese electronic databases from inception to January 2014.Two reviewers independently retrieved RCTs and extracted relevant information.The Cochrane risk of bias method was used to assess the quality of included studies,and a Meta-analysis was conducted with Review Manager5.2 software.RESULTS:Eleven RCTs involving 1034 participants were included.The methodological quality was relatively passable.The Meta-analysis indicated that the combined use of DCI and conventional treatment with Western Medicine(WM)was more efficacious in the outcomes of total effective rate[Relative Risk(RR)=1.27,95%CI(confidence interval;1.18,1.35),P<0.000 01],the total effective rate of ECG[RR=1.40,95%CI(1.18,1.66),P<0.000 01],total cholesterol[Mean difference(MD)=-0.58,95%CI(-0.83,-0.33),P<0.000 01],total triglycerides[MD=-0.36,95%CI(-0.54,-0.17),P=0.0001],and the number of ST-segment depression[MD=-0.36,95%CI(-0.54,-0.17),P=0.0001].There were two adverse drug reactions reported in one study.CONCLUSION:Based on the systematic review,DCI combined with WM appeared to be efficacious in the treatment UAP.However,the evidence of DCI for treating UAP requires large-scale and double-blind RCTs to substantiate these findings.Zhang Xiaomeng Wu Jiarui Zhang Bing Zhou Wei 2016Journal of Traditional Chinese Medicine2016,36,2:24
4Efficacy and safety of puerarin injection in treatment of diabetic peripheral neuropathy: a systematic review and Meta-analysis of randomized controlled trials显示文摘OBJECTIVE: To systematically evaluate the clinical efficacy and safety of puerarin injection in the treatment of diabeticperi pheral neuropathy(DPN).METHODS: Randomized controlled trials investigating the efficacy of puerarin injection on DPN were searched for in China National Knowledge Infrastructure Database, Chinese Scientific Journals Database, Wanfang Database, Chinese Biomedical Literature Database, PubMed, and Cochrane Library from establishment to April 30.Two reviewers independently retrieved and extracted the information.The included studies were assessed by the Cochrane risk of bias and analyzed by Review Manager 5.2 software.RESULTS: Twenty-two studies involving 1664 participants were included. The quality of the studies was found to be relatively low. Meta-analysis showed that puerarin injection combined with western medication was more effective than conventional therapy for rate, nerve conduction velocity(NCV), and hemorheology index. Six adverse drug reactions(ADRs) from puerarin injection were reported in two studies. Reactions included facial flushing, palpitations, and pain at infusion locations. However,noserious ADRs were reported.CONCLUSION: Puerarin injection was effective for the treatment of DPN. Puerarin can improve the total effective rate, correct NCV that was decreased by diabetes, and improve the hemorheology index.Puerarin was also relatively safe clinically. However,since the articles included in the study were not high-quality, more studies should be conducted to strengthen their findings.Jiarui Wu Xiaomeng Zhang Bing Zhang 2014Journal of Traditional Chinese Medicine2014,34,4:23
5Stability of roof structure and its control in steeply inclined coal seams显示文摘To improve the effectiveness of control of surrounding rock and the stability of supports on longwall topcoal caving faces in steeply inclined coal seams, the stability of the roof structure and hydraulic supports was studied with physical simulation and theoretical analysis. The results show that roof strata in the vicinity of the tail gate subside extensively with small cutting height, while roof subsidence near the main gate is relatively assuasive. With increase of the mining space, the caving angle of the roof strata above the main gate increases. The characteristics of the vertical and horizontal displacement of the roof strata demonstrate that caved blocks rotate around the lower hinged point of the roof structure, which may lead to sliding instability. Large dip angle of the coal seam makes sliding instability of the roof structure easier.A three-hinged arch can be easily formed above both the tail and main gates in steeply inclined coal seams. With the growth in the dip angle, subsidence of the arch foot formed above the main gate decreases significantly, which reduces the probability of the roof structure becoming unstable as a result of large deformation, while the potential of the roof structure's sliding instability above the tail gate increases dramatically.Li Xiaomeng Wang Zhaohui Zhang Jinwang 2017International Journal of Mining Science and Technology2017,27,2:21
6Genome-scale detection of hypermethylated CpG islands in circulating cell-free DNA of hepatocellular carcinoma patients显示文摘Lu Wen Jingyi Li Huahu Guo Xiaomeng Liu Shengmin Zheng Dafang Zhang Weihua Zhu Jianhui Qu Limin Guo Dexiao Du Xiao Jin Yuhao Zhang Yun Gao Jie Shen Hao Ge Fuchou Tang Yanyi Huang Jirun Peng 2015Cell Research2015,25,11:19
7Texture and tectonic attribute of Cenozoic basin basement in the northern South China Sea显示文摘Based on the drilling data,the geological characteristics of the coast in South China,and the interpretation of the long seismic profiles covering the Pearl River Mouth Basin and southeastern Hainan Basin,the basin basement in the northern South China Sea is divided into four structural layers,namely,Pre-Sinian crystalline basement,Sinian-lower Paleozoic,upper Paleozoic,and Mesozoic structural layers.This paper discusses the distribution range and law and reveals the tectonic attribute of each structural layer.The Pre-Sinian crystalline basement is distributed in the northern South China Sea,which is linked to the Pre-Sinian crystalline basement of the Cathaysian Block and together they constitute a larger-scale continental block—the Cathaysian-northern South China Sea continental block.The Sinian-lower Paleozoic structural layer is distributed in the northern South China Sea,which is the natural extension of the Caledonian fold belt in South China to the sea area.The sediments are derived from southern East China Sea-Taiwan,Zhongsha-Xisha islands and Yunkai ancient uplifts,and some small basement uplifts.The Caledonian fold belt in the northern South China Sea is linked with that in South China and they constitute the wider fold belt.The upper Paleozoic structural layer is unevenly distributed in the northern South China.In the basement of Beibu Gulf Basin and southwestern Taiwan Basin,the structural layer is composed of the stable epicontinental sea deposit.The distribution areas in the Pearl River Mouth Basin and the southeastern Hainan Basin belong to ancient uplifts in the late Paleozoic,lacking the upper Paleozoic structural layers.The stratigraphic distribution and sedimentary environment in Middle-Late Jurassic to Cretaceous are characteristic of differentiation in the east and the west.The marine,paralic deposit is well developed in the basin basement of southwestern Taiwan but the volcanic activity is not obvious.The marine and paralic facies deposit is distributed in the eastern Pearl River Mouth Basin basement and the volcanic activity is stronger.The continental facies volcano-sediment in the Early Cretaceous is distributed in the basement of the western Pearl River Mouth Basin and Southeastern Hainan Basin.The Upper Cretaceous red continental facies clastic rocks are distributed in the Beibu Gulf Basin and Yinggehai Basin.The NE direction granitic volcanic-intrusive complex,volcano-sedimentary basin,fold and fault in Mesozoic basement have the similar temporal and spatial distribution,geological feature,and tectonic attribute with the coastal land in South China,and they belong to the same magma-deposition-tectonic system,which demonstrates that the late Mesozoic structural layer was formed in the background of active continental margin.Based on the analysis of basement structure and the study on tectonic attribute,the paleogeographic map of the basin basement in different periods in the northern South China Sea is compiled.SUN XiaoMeng ZHANG XuQing ZHANG GongCheng LU BaoLiang YUE JunPei ZHANG Bin 2014Science China Earth Sciences2014,57,6:18
8TGFβ inhibition enhances the generation of hematopoietic progenitors from human ES cell-derived hemogenic endothelial cells using a stepwise strategy显示文摘Chengyan Wang Xuming Tang Xiaomeng Sun Zhenchuan Miao Yaxin Lv Yanlei Yang Huidan Zhang Pengbo Zhang Yang Liu LiyingDu Yang Gao Ming Yin Mingxiao Ding Hongkui Deng 2012Cell Research2012,22,1:17
9Potassium dehydroandrographolide succinate injection for treatment of infantile pneumonia:a systematic review and Meta-analysis显示文摘OBJECTIVE:To evaluate systematically the clinical efficacy and safety of potassium dehydroandrographolide succinate injection(PDS) in treatment of infantile pneumonia.METHODS:Randomized controlled trials(RCTs) of infantile pneumonia treated by PDS were searched in China National Knowledge Infrastructure Database,China Science and Technology Journal Database,Wanfang Database,Chinese Biomedical Literature Database,PubMed,and Cochrane Library,from January 1979 to July 2013.Two reviewers independently retrieved the RCTs and extracted the information.The quality of included studies was assessed by the Cochrane risk of bias,and a Meta-analysis was conducted with Review Manager 5.2 software.RESULTS:A total of 9 studies with 1056 participants were included.The quality of the studies was generally no high,only one study mentioned the random method.The Meta-analysis indicated that PDS was significantly superior to the conventional therapy in the total effective rate[relative risk(RR)=1.21,95%CI(1.14,1.27),P<0.000 01],the time of temperature recovery[mean difference(MD)=-1.43,95%CI(-1.75,-1.11),P<0.000 01],rale disappeared and cough relieving[MD=-1.44,95%CI(-1.93,-0.90),P<0.000 01].Six adverse drug reactions from five studies mainly represented rash and diarrhea,and no serious ADRs were reported.CONCLUSION:Based on this systematic review,PDS was proved effective and relatively safe in treatment of infantile pneumonia.However the articles enrolled in the study were not high in quality,studies with higher quality should be conducted for assessment of efficacy and safety of PDS in treatment of infantile pneumonia.Zhang Xiaomeng Wu Jiarui Zhang Bing Dong Ling 2015Journal of Traditional Chinese Medicine2015,35,2:17
10Analysis of miR-205 and miR-155 expression in the blood of breast cancer patients显示文摘The purpose of this study was to identify and validate circulating microRNAs (miRNAs) in human plasma for use as breast cancer (BC) biomarkers and to analyze their relationship to clinicopathologic features and its preliminary biological function. Genome-wide expression profiling of miRNAs in BC was investigated by microarray analysis. miR-155 was up-regulated greater than two-fold in BC compared with Normal Adjacent Tissue (NAT), whereas let-7b, miR-381, miR-10b, miR-125a-5p, miR-335, miR-205 and miR-145 were down- regulated greater than two-fold. Our hypothesis was that circulating miRNAs are also present and differentially expressed in the serum of BC patients compared to controls. Using real-time PCR (RT-PCR), we analyzed miR-205 and miR-155 in archived serum from 30 participants, 20 with breast cancer and 10 healthy people. miR-205 was down-regulated in BC patient serum while miR-155 was up-regulated. Furthermore, we analyzed the relationship between the expression levels of these two miRNAs and the clinicopathologic parameters of BC patients. High expression of miR155 was associated with clinical stage, molecular type, Ki-67 and p53 in BC patients (P<0.05). By contrast, we found no significant correlation between miR-205 and BC patient clinicopathologic parameters. Functional analysis showed that ectopic expression of miR-205 significantly inhibits cell proliferation and promotes apoptosis. miR-205 was down-regulated and miR-155 was up-regulated in BC patient serum. miR-155 was positive correlated with clinical stage and ki-67 and negatively correlated with p53 status.Jingjing Liu Qixin Mao Yan Liu Xiaomeng Hao Sheng Zhang Jin Zhang 2013Chinese Journal of Cancer Research2013,25,1:14
11Spatial and temporal analysis of tuberculosis in Zhejiang Province, China, 2009-2012显示文摘Background:Tuberculosis(TB)is an infectious disease of major public health concern.The disease has demonstrated large space-time variations.This study aims to explore the space-time dynamics of TB cases in an economically and geographically dynamic province in China with specific references of TB control for policy makers.Methods:Data on all reported TB cases from 2009 to 2012 were collected from the TB program at the Zhejiang Provincial Center for Disease Control and Prevention.We employed time series and exploratory spatial data analyses,including Moran’s I,Local Getis’s G_(i)^(*),and Kulldorff’s space-time scan statistics,to identify the temporal trends and spatial patterns of TB at a county level.Results:A total of 147,941 TB cases were reported during 2009–2012 in Zhejiang.A higher proportion of TB cases were younger,male,and registered permanent residents among all TB cases notified in the province.TB cases were reported most frequently in April with small peaks in June,July,and October.This disease was spatially clustering with Moran’s I values ranged from 0.29 to 0.32(p<0.001).A most likely cluster and ten secondary clusters were identified,mainly concentrated in the southeast and west counties of the province.Conclusions:This study identified seasonal patterns and significant space-time clusters of TB cases in Zhejiang,China.Poverty,migration,and seasonal effects may play important roles in potential clusters.Erjia Ge Xin Zhang Xiaomeng Wang Xiaolin Wei 2016Infectious Diseases of Poverty2016,5,1:13
12Genetic enhancement in cultured human adult stem cells conferred by a single nucleotide recoding显示文摘Jiping Yang Jingyi Li Keiichiro Suzuki Xiaomeng Liu Jun Wu Weiqi Zhang Ruotong Ren Weizhou Zhang Piu Chan Juan Carlos Izpisua Belmonte Jing Qu Fuchou Tang Guang-Hui Liu 2017Cell Research2017,27,9:12
13Brown adipose tissue transplantation improves whole-body energy metabolism显示文摘Qingsheng Chi Dehua Wang Zhaoyun Zhang Chenzhong Li Yiming Li Yaoming Xue John R Speakma Wanzhu Jin Xiaomeng Liu Zongji Zhen Xiaoming Zhu Minghui Meng Lan Li Yanyan Shen 2013Cell Research2013,23,6:11
14Qingkailing injection for the treatment of acute stroke: a systematic review and Meta-analysis显示文摘OBJECTIVE: To evaluate systematically the clinical efficacy and safety of Qingkailing(QKL) injection in the treatment of acute stroke.METHODS: Searches for randomized controlled trials into acute stroke treated with QKL injection were performed in the China National Knowledge Infrastructure Database, China Science and Technology Journal Database, Wan fang Database,Chinese Biomedical Literature Database, PubMed and Cochrane Library, from January 1979 to March2013. Two reviewers independently retrieved the RCTs and extracted the information. The Cochrane risk of bias method was used to assess the quality of the included studies, and a Meta-analysis was conducted with Review Manager 5.2 software.RESULTS: A total of 13 studies with 1110participants were included. The quality of the studies was generally low. The Meta-analysis indicated that the combined use of QKL and Western Medicine was significantly superior to control group therapy in terms of the total effective rate. The relative risk(RR) in the acute cerebral hemorrhage(ACH) sub-group was 1.17 [95%confidence interval(CI)(1.08, 1.26), P=0.0001]. In the acute cerebral infarction(ACI) sub-group, RR was 1.27 [95% CI(1.14, 1.42), P<0.0001], and in the ACH and ACI mixed sub-group, RR was 1.34 [95% CI(1.20,1.50),P<0.00001]. Additionally, QKL promoted the absorption of hematoma [mean difference(MD)=﹣3.73, 95%CI(﹣4.48, ﹣2.98), P<0.000 01],decreased neurological damage in ACI [MD=﹣5.60, 95% CI(﹣8.50, ﹣2.70), P=0.0002] and ACH[MD= ﹣ 4.08, 95% CI( ﹣ 8.00, ﹣ 0.16), P=0.04],promoted the recovery of awareness [RR=1.56, 95%CI(1.09, 2.21), P=0.01] and reduced the whole blood viscosity coefficient [MD=﹣ 0.75, 95% CI( ﹣1.47, ﹣0.03), P=0.04]. There were no adverse drug reactions reported in the included studies.CONCLUSION: Based on this systematic review,QKL combined with conventional therapy was effective compared with control treatment.However, because the articles used in the study were not of high quality, further studies should be conducted into the efficacy and safety of QKL in treating acute stroke.JiaruiWu Xiaomeng Zhang Bing Zhang 2014Journal of Traditional Chinese Medicine2014,34,2:9
15Removal of cyanide adsorbed on pyrite by H_2O_2 oxidation under alkaline conditions显示文摘Large amounts of cyanide tailings are produced during the cyanidation process in gold extraction,which are hazardous solid wastes due to the toxic cyanide.Pyrite is one of the main minerals in cyanide tailings.The removal of cyanide adsorbed on pyrite by H_2O_2 oxidation under alkaline conditions was investigated in this study.It was found that the removal efficiency was positively correlated with pH from 5 to 12,but remained almost constant when pH was higher than 12.The highest cyanide removal efficiency of 91.10% was achieved by adding no less than 0.6 wt.% of H_2O_2.Cyanide removal was positively correlated with the CN^-adsorption amount between 1.06 and 8.5 mg/g,and temperature between 25 and 85°C.The removal of cyanide adsorbed on pyrite by H_2O_2 oxidation under alkaline conditions was due to the oxidation of pyrite.Hexacyanoferrate,thiocyanate and sulfate were generated with mole ratios of about 2.03:1.12:3.17 during the cyanide removal.?2018 The Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences.Yubo Tu Peiwei Han Lianqi Wei Xiaomeng Zhang Bo Yu Peng Qian Shufeng Ye 2019Journal of Environmental Sciences2019,31,4:8
16Injections of ginkgo in the treatment of cerebral infarction: a systematic review and network Meta-analysis显示文摘OBJECTIVE: To assess the clinical effectiveness and safety of injections of ginkgo(GI) combined with Western Medicine(WM) for cerebral infarction(CI).METHODS: Randomized controlled trials(RCTs) of CI treated by GI were searched in China National Knowledge Infrastructure Database, Wanfang, China Science and Technology Journal Database, Web of Science, Cochrane library, Embase, Pub Med and Chinese Biomedical Literature Database, with the publication data no later than April, 2016. The Cochrane risk of bias method was used to evaluate the methodological quality of the RCTs. The data were analyzed by Review Manager 5.3, Stata 13.0,and Win BUGS 14 software.RESULTS: Totally 37 RCTs involving 4330 patientswere included. By direct comparison, the results of GI group were significantly superior to the routine WM group in the total effective rates [OR = 3.61,95% CI(2.93, 4.44), P < 0.0001], the neural function defect score(NFDS) [MD =-4.39, 95% CI(-5.47,-3.32), P < 0.0001]. Network Meta-analysis(NMA)results showed that, between 5 GIs in efficacy, the difference comparing ginaton injections(Gb E) to ginkgo-dipyidamolum injections(GD) [OR = 1.74,95% CI(0.73, 3.65)], shuxuening injections(SXN)[OR = 1.06, 95% CI(0.609, 1.697)] or ginkgolides injections(GK) [OR = 4.711, 95% CI(1.178, 13.21)]reach statistical significance; the difference comparing GD to GK reach statistical significance [OR =2.791, 95% CI(0.866, 6.908)]; the difference comparing SXN to GK reach statistical significance[OR = 4.537, 95% CI(1.203, 12.41)]. Besides, there was no difference between 4 GIs in NFDS. Probability ranking result showed a great possibility for GK [Surface under the Cumulative Ranking curve(SUCRA) = 80.3%] in improving the total effective rates, which were followed by GD(SUCRA =73.34%), SXN(SUCRA = 46.59%), Gb E(SUCRA =45.46%), floium ginkgo extract and tertram ethypyrazine sodium chloride injections(FT)(SUCRA = 35.64%). However, GK(SUCRA = 80.3%) or Gb E(SUCRA = 69.4%) was better than other GIs in reducing NFDS.GK + WM is the best treatment measures to reduce NFDS in cerebral infarction,which were followed by SXN + WM(SUCRA =51.6%), GD + WM(SUCRA = 48.1%).CONCLUSION: GIs was more effectiveness on CI than the routine Western Medicine. But based on the limitations of the study, more high-quality randomized controlled trials will be necessary.Tan Di Wu Jiarui Liu Shi Zhang Dan Cui Yingying Zhang Xiaomeng Zhang Bing 2018Journal of Traditional Chinese Medicine2018,38,1:7
17PAQR10 and PAQR11 mediate Ras signaling in the Golgi apparatus显示文摘地岬在许多细胞的活动起一个枢轴的作用,并且它的 subcellular 区分提供空间、时间的选择。这里,我们报导由二高度相应的蛋白质 PAQR10 和孕激素和 AdipoQ 受体家庭的 PAQR11 在 Golgi 仪器发信号的地岬的空间规定的一个模式。PAQR10 和 PAQR11 在 Golgi 仪器是只局部性的。PAQR10/PAQR11 的 Overexpression 刺激基础、导致 EGF 的英皇家空军之阶级最低之兵 phosphorylation 并且以一种剂量依赖者方式增加英皇家空军之阶级最低之兵目标基因的表示。PAQR10/PAQR11 的 Overexpression 显著地提高 HRas, NRas 和 KRas4A 的 Golgi 本地化,然而并非 KRas4B。PAQR10 和 PAQR11 罐头也与 HRas, NRas 和 KRas4A 交往,然而并非 KRas4B。在由 PAQR10/PAQR11 的 overexpression 的 Golgi 仪器的增加的地岬蛋白质处于一个活跃状态。一致地, PAQR10 和 PAQR11 还原剂击倒在 Golgi 仪器的刺激 EGF 的英皇家空军之阶级最低之兵 phosphorylation 和地岬激活。有趣地, PAQR10 和 PAQR11 能与 RasGRP1,地岬的 guanine 核苷酸交换蛋白质,和 RasGRP1 的增加 Golgi 本地化交往。RasGRP1 的 C1 领域为和 PAQR10/PAQR11 的 RasGRP1 的相互作用必要、足够。由 overexpressed PAQR10/PAQR11 的英皇家空军之阶级最低之兵 phosphorylation 的模拟被 RasGRP1 的 downregulation 废除。而且, PC12 房间的区别被 PAQR10/PAQR11 的 overexpression 显著地提高。一起,这研究揭开由 PAQR10 和 PAQR11 在 Golgi 仪器发信号的地岬的空间规定的一个新范例。Ting Jin Qiurong Ding Heng Huang Daqian Xu Yuhui Jiang Ben Zhou Zhenghu Li Xiaomeng Jiang Jing He Weizhong Liu Yixuan Zhang Yi Pan Zhenzhen Wang Walter G Thomas Yan Chen 2012Cell Research2012,22,4:6
18Survivability-oriented optimal node density for randomly deployed wireless sensor networks显示文摘The survivability is usually critical for wireless sensor networks,which are often deployed in the unattended harsh environment.Lots of technical schemes to improve the survivability depend on the redundant resources of the sensor networks.The amount of resources is usually determined by the node density during the deployment phase.For the random deployment and random node failures,the quantitative relation between the survivability and the node density is studied.Based on the conditional survivability,the node density to meet the required survivability level is presented.Finally,the survivability for unpredictable failures and the optimal node density to maximize the price–performance ratio are also discussed.HUANGFU Wei ZHANG ZhongShan CHAI XiaoMeng LONG KePing 2014Science China(Information Sciences)2014,57,2:5
19Altered Local Field Potential Relationship Between the Parafascicular Thalamic Nucleus and Dorsal Striatum in Hemiparkinsonian Rats显示文摘The thalamostriatal pathway is implicated in Parkinson's disease(PD); however, PD-related changes in the relationship between oscillatory activity in the centromedian-parafascicular complex(CM/Pf, or the Pf in rodents) and the dorsal striatum(DS) remain unclear.Therefore, we simultaneously recorded local field potentials(LFPs) in both the Pf and DS of hemiparkinsonian and control rats during epochs of rest or treadmill walking. The dopamine-lesioned rats showed increased LFP power in the beta band(12 Hz–35 Hz) in the Pf and DS during both epochs, but decreased LFP power in the delta(0.5 Hz–3 Hz) band in the Pf during rest epochs and in the DS during both epochs, compared to control rats. In addition,exaggerated low gamma(35 Hz–70 Hz) oscillations after dopamine loss were restricted to the Pf regardless of the behavioral state. Furthermore, enhanced synchronization of LFP oscillations was found between the Pf and DS after the dopamine lesion. Significant increases occurred in the mean coherence in both theta(3 Hz–7 Hz) and beta bands,and a significant increase was also noted in the phase coherence in the beta band between the Pf and DS during rest epochs. During the treadmill walking epochs, significant increases were found in both the alpha(7 Hz–12 Hz)and beta bands for two coherence measures. Collectively,dramatic changes in the relative LFP power and coherence in the thalamostriatal pathway may underlie the dysfunction of the basal ganglia-thalamocortical network circuits in PD, contributing to some of the motor and non-motor symptoms of the disease.Haiyan Zhang Jing Yang Xuenan Wang Xiaomeng Yao Hongyu Han Yunfeng Gao Hongli Chang Tianyu Xiang Shuang Sun Yanan Wang Xiusong Wang Min Wang 2019Neuroscience Bulletin2019,35,2:5
20Construction of Co_(2)NiO_(4)@MnCo_(2)O_(4.5)nanoparticles with multiple hetero-interfaces for enhanced electromagnetic wave absorption显示文摘Nanocomposites with heterogeneous structures and magneto-electric synergistic losses have broad prospects for improving electromagnetic wave(EMW)absorption performance.In this study,we synthesized Co_(2)NiO_(4)@MnCo_(2)O_(4.5)nanoparticles with abundant hetero-interfaces and multiple magnetoelectric loss mechanisms by a facile hydrothermal method.The excess 0.5 oxygen atoms in MnCo_(2)O_(4.5) produce more vacancies and contribute to the enhancement of electrical conductivity.Sequential nanoneedle clusters facilitate multiple reflections and absorption of EMW in the materials,which are accompanied by an abundance of heterogeneous interfaces to improve the dielectric loss.The Co_(2)NiO_(4)@MnCo_(2)O_(4.5)composites showed a minimum reflection loss(RLmin)of30.01 dB and a superior effective absorption bandwidth(EAB)of 6.12 GHz(11.88 GHze18 GHz)at a thickness of 2.00 mm.Computer Simulation Technology(CST)revealed that the obtained particles show very low radar crosssection(RCS)values and almost full coverage angles.The maximum reduction of RCS at vertical incidence reaches 19.98 dB m2.The Co_(2)NiO_(4)@MnCo_(2)O_(4.5)nanoparticles exhibit outstanding radar attenuation properties,which can effectively inhibit the reflection and scattering of EMW.Therefore,the prepared Co_(2)NiO_(4)@MnCo_(2)O_(4.5)absorbers have great application potential in the field of EMW absorption.Yi Zhang Shujuan Tan Zhuoting Zhou Xiaomeng Guan Yu Liao Chen Li Guangbin Ji 2023Particuology2023,,10:5
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