维普中文期刊产品整合服务
13篇 您的检索式:作者名="Shigang Hu"
    题名 作者 年代 出处 被引量
1Laser-Assisted Reduction of Highly Conductive Circuits Based on Copper Nitrate for Flexible Printed Sensors显示文摘Stretchable electronic sensing devices are defining the path toward wearable electronics. High-performance flexible strain sensors attached on clothing or human skin are required for potential applications in the entertainment,health monitoring, and medical care sectors. In this work,conducting copper electrodes were fabricated onpolydimethylsiloxane as sensitive stretchable microsensors by integrating laser direct writing and transfer printing approaches. The copper electrode was reduced from copper salt using laser writing rather than the general approach of printing with pre-synthesized copper or copper oxide nanoparticles. An electrical resistivity of 96 l X cm was achieved on 40-lm-thick Cu electrodes on flexible substrates. The motion sensing functionality successfully demonstrated a high sensitivity and mechanical robustness.This in situ fabrication method leads to a path toward electronic devices on flexible substrates.Shi Bai Shigang Zhang Weiping Zhou Delong Ma Ying Ma Pooran Joshi Anming Hu 2017Nano-Micro Letters2017,9,4:10
2Co3O4 nanocage derived from metal-organic frameworks: An excellent cathode catalyst for rechargeable Li-O2 battery显示文摘Rechargeable non-aqueous Li-O2 battery is regarded as one of the most promising energy-storage technologies on account of its high energy density.It is believed that the rational design of three-dimensional (3D) architecture for catalyst is a key factor for the remarkable performance.Metal-organic frameworks (MOFs) derived materials possess excellent architecture,which is beneficial for Li-O2 batteries.In this work,ZIF-67 is used as precursor template and calcinated under different temperature to produce Co3O4 crystals.When the anneal treatment is under 350℃,the derived Co3O4 nanocage holds the most complete skeleton,which provides better charge transfer ability as well as O2 and Li^+ diffusion.Meanwhile,the Co3O4 nanocage owns more oxygen vacancies,offering more active sites.With the synergistic effect of nanocage structure and active sites,the Co3O4 nanocage stably delivers a large specific capacity of 15,500 mAh·g^-1 as well as a long cycle-life of 132 cycles at limited discharge capacity of 1,000 mAh·g^-1 under discharge/charge current density of 0.5 A·g^-1.Zhuoliang Jiang Hui Sun Wenke Shi Tianhang Zhou Jianyong Hu Jingyang Cheng Pengfei Hu Shigang Sun 2019Nano Research2019,12,7:5
3Automatic tuning of sparse matrix-vector multiplication on multicore clusters显示文摘To have good performance and scalability, parallel applications should be sophisticatedly optimized to exploit intra-node parallelism and reduce inter-node communication on multicore clusters. This paper investigates the automatic tuning of the sparse matrix-vector(Sp MV) multiplication kernel implemented in a partitioned global address space language, which supports a hybrid thread- and process-based communication layer for multicore systems. One-sided communication is used for inter-node data exchange, while intra-node communication uses a mix of process shared memory and multithreading. We develop performance models to facilitate selecting the best configuration of threads and processes hybridization as well as the best communication pattern for Sp MV. As a result, our tuned Sp MV in the hybrid runtime environment consumes less memory and reduces inter-node communication volume, without damaging the data locality. Experiments are conducted on 12 real sparse matrices. On 16-node Xeon and 8-node Opteron clusters, our tuned Sp MV kernel gets on average 1.4X and 1.5X improvement in performance over the well-optimized process-based message-passing implementation, respectively.LI ShiGang HU ChangJun ZHANG JunChao ZHANG YunQuan 2015Science China(Information Sciences)2015,58,9:3
4Test sequencing problem arising at the design stage for reducing life cycle cost显示文摘Previous test sequencing algorithms only consider the execution cost of a test at the application stage. Due to the fact that the placement cost of some tests at the design stage is considerably high compared with the execution cost, the sequential diagnosis strategy obtained by previous methods is actually not optimal from the view of life cycle. In this paper, the test sequencing problem based on life cycle cost is presented. It is formulated as an optimization problem, which is non-deterministic polynomial-time hard (NP-hard). An algorithm and a strategy to improve its computational efficiency are proposed. The formulation and algorithms are tested on various simulated systems and comparisons are made with the extant test sequencing methods. Application on a pump rotational speed control (PRSC) system of a spacecraft is studied in detail. Both the simulation results and the real-world case application results suggest that the solution proposed in this paper can significantly reduce the life cycle cost of a sequential fault diagnosis strategy.Zhang Shigang Hu Zheng Wen Xisen 2013Chinese Journal of Aeronautics2013,26,4:3
5Tracing of dye molecules in living plants through NaGdF_4:Yb^(3+),Er^(3+)fluorescent nanoprobes显示文摘In this paper, we demonstrated trace of dye molecules in living plants. The NaGdF4:Yb^(3+),Er^(3+) nanoparticles probe was used to detect the rhodamine B(RhB) in bean sprout. It is found that the fluorescencedye can be efficiently imbibed during the growing process and the absorbance presented a position dependence effect, which was supported by the upconversion spectra and the fluorescent image characterization. In addition, the concentration of the residual RhB in bean sprout can be efficiently traced by the synthesized probe based on the fluorescent resonant energy transfer. Finally, the relation between the excitation power, concentration and the ratio of yellow to green emission are discussed in detail. These results can be helpful in understanding the RhB dye molecules absorbance process in vegetable growth and provide an efficient way to trace the residual dyes in vivo plant.Xiaofeng Wu Ya'nan Zhang Shiping Zhan Jin Li Guozheng Nie Shigang Hu Cong Yan Shaobing Wu Shengbin Cheng Junshan Hu Lichun Shi Yunxin Liu 2019Journal of Rare Earths2019,37,3:3
6Fabrication of 150-nm Al_(0.48)In_(0.52)As/Ga_(0.47)In_(0.53)As mHEMTs on GaAs substrates显示文摘High performance 150-nm gate-length metamorphic Al0.48In0.52As/Ga0.47In0.53 As high electron mobility transistors(mHEMTs) with very good device performance have been successfully fabricated.A T-shaped gate is fabricated by using a combined technique of optical and e-beam photolithography,which is beneficial to decreasing parasitic capacitance and parasitic resistance of the gate.The ohmic contact resistance R c is as low as 0.03 mm when using a novel ohmic contact metal system(Ni/Ge/Ti/Au).The devices exhibit excellent DC and RF performance.A peak extrinsic transconductance of 775 mS/mm and a maximum drain current density of 720 mA/mm are achieved.The unity current gain cut-off frequency(fT) and the maximum oscillation frequency(f max) are 188.4 and 250 GHz,respectively.WU XiaoFeng LIU HongXia LI HaiOu LI Qi HU ShiGang XI ZaiFang ZHAO Jin 2012Science China(Physics,Mechanics & Astronomy)2012,55,12:2
7Association between essential hypertension and polymorphisms of beta 1 adrenergic receptor gene G1165C (Gly389Arg) in Chinese Mongolian population显示文摘BACKGROUND: The prevalences of hypertension, cerebrovascular diseases, etc. are higher in Mongolian population because of the influence of various factors including genetics, geography, diet, etc. Therefore, it is helpful to develop researches on the genetics of various diseases including hypertension in Mongolian population. OBJECTIVE: To analyze the association between the polymorphism of beta1 adrenergic receptor (β1-AR) gene G1165C (Arg389Gly), an important candidate gene for various diseases of cardiovascular system, and essential hypertension in Mongolian population. DESIGN: A cross-sectional study. SETTINGS: Department of Neurology, the First Affiliated Hospital of Inner Mongolia Medical College; Wulate Houqi Red Cross Society. PARTICIPANTS: The survey was carried out from February 2003 to March 2005. Totally 239 Mongolian residents, whose blood relations of 3 generations were all Mongolians, were selected from Wulate Houqi, Inner Mongolia, and they were all informed with the survey and detected items. Based on the diagnostic standard of hypertension set by WHO in 1999, the subjects were divided into two groups according to the level blood pressure: ① Normal blood pressure group (n=117): systolic blood pressure (SBP) < 140 mm Hg (1 mm Hg =0.133 kPa), diastolic blood pressure (DBP) < 90 mm Hg, and those having histories of cerebrovascular disease, heart disease, diseases of liver, kidney and tiroides, and diabetes mellitus were excluded. ② Essential hypertension group (n=122): including 51 patients with simple high SBP. All the enrolled subjects had no blood relationship with each other, and had no history of miscegenation. METHODS: The body height, body mass, waist circumference and blood lipids were measured routinely, and their habits of smoking and drinking were also investigated. Peripheral venous blood (5 mL) was drawn, the genome DNA was extracted, and the polymorphisms of the β1-AR G1165C (Gly389Arg) genotype were detected with the Sequenom system. Polymerase chain reaction (PCR) experiment and SNP detection were performed in Huada Gene Laboratory of Bejing, then the univariate analysis of variance was applied in the sample comparison among groups, and the chi-square test was used to compare the genotypes and allele frequencies. The odd ratio (OR) and 95% confidence interval (CI) were calculated. MAIN OUTCOME MEASURES: The distributions of β1-AR G1165C (Gly389Arg) genotypes and alleles were observed. RESULTS: All the 239 subjects were involved in the analysis of results, and no one missed. ①Comparison of β1-AR G1165C (Gly389Arg) genotypes and allele distributions: In Mongolian population, the frequencies of CC and GG+GC genotypes at β1-AR G1165C (Gly389Arg) site in the essential hypertension group (72%, 28%) were not significantly different from those in the normal blood pressure group (67%, 33%) (χ2=0.841, P=0.359; OR: 0.773, 95%CI: 0.445-1.342); The frequencies of C and G alleles also had no significant differences between the essential hypertension group (85%, 15%) and the normal blood pressure group (82%, 18%) (χ2=1.136, P=0.287; OR: 0.769, 95%CI: 0.747-1.248). ②The frequencies of CC and GG+GC genotypes at β1-AR G1165C (Gly389Arg) site had no significant differences between the patients with simple high SBP (71%, 29%) and the normal blood pressure group (χ2=0.250, P=0.617; OR: 0.833, 95%CI: 0.408-1.703); The frequencies of C and G alleles were not significantly different between the patients with simple high SBP (86%, 14%) and the normal blood pressure group (χ2=0.670, P=0.413; OR: 0.766, 95%CI: 0.404-1.453). CONCLUSION: In Mongolian population, the distributions of the genotypes and alleles of β1-AR G1165C (Gly389Arg) have no obvious differences between the subjects with normal blood pressure and the patients with essential hypertension (including simple SBP increase), which suggests that G1165C (Glu389Asp) site of β1-AR gene may be not a genetic mark of essential hypertension and simple high SBP in Mongolian population.Rile Hu Rile Hu Shigang Zhao Guangming Niu Chunyu Zhang Zhiguang Wang Mingfang Jiang 2006Neural Regeneration Research2006,1,3:2
8Genetic predisposition to essential hypertension in a Mongolian population Detecting the C825T polymorphism of the G-protein beta 3 subunit gene显示文摘BACKGROUND: The prevalences of hypertension, cerebrovascular diseases, etc. are higher in Mongolian population because of the influence of various factors including genetics, geography, diet, etc. Therefore, it is helpful for prevention to develop researches on the genetics of various diseases including hypertension in Mongolian population. OBJECTIVE: To analyze the association between C825T polymorphisms of G-protein beta 3 subunit gene (GNB3), the important candidate gene of various disease of cardiovascular system, and Mongolian patients with essential hypertension. DESIGN: A comparative observation. SETTINGS: Department of Neurology, the First Affiliated Hospital of Inner Mongolia Medical College; Wulate Houqi Red Cross Society. PARTICIPANTS: Totally 267 Mongolian residents, whose blood relations of 3 generations were all Mongolians, were selected from Wulate Houqi, Inner Mongolia. The patients were screened based on the diagnostic standard of hypertension set by WHO in 1999, and the enrolled subjects were divided into two groups according to the level of blood pressure: ① Normal blood pressure group (n =124): 64 males and 60 females, systolic blood pressure (SBP) < 140 mm Hg (1 mm Hg=0.133 kPa), diastolic blood pressure (DBP) < 90 mm Hg; ② Essential hypertension group (n =143): 71 males and 72 females, including 60 patients with simple high SBP (SBP ranged 145 to 195 mm Hg, whereas DBP < 90 mm Hg). METHODS: Peripheral venous blood (5 mL) was drawn from all the subjects, the genome DNA was extracted, and the polymorphisms of the GNB3 C825T genotype were detected with the Sequenom system. Polymerase chain reaction (PCR) experiment and SNP detection were performed in Beijing Huada gene laboratory. Then the univariate analysis of variance was applied in the sample comparison among groups, and the chi-square test was used to compare the genotypes and allele frequencies. The odd ratio (OR) and 95% confidence interval (CI) were calculated. MAIN OUTCOME MEASURES: The distributions of GNB3 C825T genotypes and alleles were observed. RESULTS: All the 267 Mongolian subjects were involved in the analysis of results. ① GNB3 C825T genotypes: In Mongolian population, the frequencies of CC, CT and TT genotypes at GNB3 C825T site in the essential hypertension group (48%, 41%, 11%) were not obvious different from those in the normal blood pressure group (43%, 47%, 10%,χ2 =0.162, P =0.688; OR:1.176, 95%CI: 0.533–2.592), whereas there were also no obvious differences between the simple high SBP group (57%, 35%, 8%) and the normal blood pressure group (χ2 =0.733, P =0.392; OR:1.957, 95%CI: 0.623–6.143). ② GNB3 C825T alleles: In Mongolian population, The frequencies of C and T alleles in the essential hypertension group (69%, 31%) were not obviously different from those in the normal blood pressure group (67%, 33%, χ2 =0.094, P = 0.759; OR:0.945, 95%CI: 0.657–1.358), whereas there were also no obvious differences between the simple high SBP group (74%, 26%) and the normal blood pressure group (χ2 =2.133, P =0.144; OR:0.697, 95%CI: 0.428–1.133). CONCLUSION: GNB3 C825T site may be not a genetic marker of essential hypertension and simple highSBP in Mongolian population.Chunyu Zhang Shigang Zhao Guangming Niu Rile Hu Zhiguang Wang Mingfang Jiang 2007Neural Regeneration Research2007,2,3:1
9Influence of cathodic current on composition, structure and properties of Al 2 O 3 coatings on aluminum alloy prepared by micro-arc oxidation process显示文摘Shigang Xin Lixin Song Ronggen Zhao Xingfan Hu 2005Thin Solid Films2005,,1:1
10The First High-quality Reference Genome of Sika Deer Provides Insights into High-tannin Adaptation显示文摘Sika deer are known to prefer oak leaves,which are rich in tannins and toxic to most mammals;however,the genetic mechanisms underlying their unique ability to adapt to living in the jungle are still unclear.In identifying the mechanism responsible for the tolerance of a highly toxic diet,we have made a major advancement by explaining the genome of sika deer.We generated the first high-quality,chromosome-level genome assembly of sika deer and measured the correlation between tannin intake and RNA expression in 15 tissues through 180 experiments.Comparative genome analyses showed that the UGT and CYP gene families are functionally involved in the adaptation of sika deer to high-tannin food,especially the expansion of the UGT family 2 subfamily B of UGT genes.The first chromosome-level assembly and genetic characterization of the tolerance to a highly toxic diet suggest that the sika deer genome may serve as an essential resource for understanding evolutionary events and tannin adaptation.Our study provides a paradigm of comparative expressive genomics that can be applied to the study of unique biological features in non-model animals.Xiumei Xing Cheng Ai Tianjiao Wang Yang Li Huitao Liu Pengfei Hu Guiwu Wang Huamiao Liu Hongliang Wang Ranran Zhang Junjun Zheng Xiaobo Wang Lei Wang Yuxiao Chang Qian Qian Jinghua Yu Lixin Tang Shigang Wu Xiujuan Shao Alun Li Peng Cui Wei Zhan Sheng Zhao Zhichao Wu Xiqun Shao Yimeng Dong Min Rong Yihong Tan Xuezhe Cui Shuzhuo Chang Xingchao Song Tongao Yang Limin Sun Yan Ju Pei Zhao Huanhuan Fan Ying Liu Xinhui Wang Wanyun Yang Min Yang Tao Wei Shanshan Song Jiaping Xu Zhigang Yue Qiqi Liang Chunyi Li Jue Ruan Fuhe Yang 2023Genomics, Proteomics & Bioinformatics2023,21,1:1
11Investigation of photoelectrocatalytic degradation mechanism of methylene blue by a-Fe_(2)O_(3) nanorods array显示文摘Efficiently and thoroughly degrading organic dyes in wastewater is of great importance and challenge.Herein,vertically oriented mesoporous a-Fe_(2)O_(3)nanorods array(a-Fe_(2)O_(3)-NA)is directly grown on fluorine-doped tin oxide(FTO)glass and employed as the photoanode for photoelectrocatalytic degradation of methylene blue simulated dye wastewater.The Ovsites on the a-Fe_(2)O_(3)-NA surface are the active sites for methylene blue(MB)adsorption.Electrons transfer from the adsorbed MB to Fe-O is detected.Compared with electrocatalytic and photocatalytic degradation processes,the photoelectrocatalytic(PEC)process exhibited the best degrading performance and the largest kinetic constant.Hydroxyl,superoxide free radicals,and photo-generated holes play a jointly leading role in the PEC degradation.A possible degrading pathway is suggested by liquid chromatography-mass spectroscopy analysis.This work demonstrates that photoelectrocatalysis by a-Fe_(2)O_(3)-NA has a remarkable superiority over photocatalysis and electrocatalysis in MB degradation.The in-depth investigation of photoelectrocatalytic degradation mechanism in this study is meaningful for organic wastewater treatment.Yaqiao Liu Shuozhen Hu Xinsheng Zhang Shigang Sun 2023Chinese Journal of Chemical Engineering2023,57,5:0
12Positive direction of polarization-induced electric field improves formic acid electrooxidation on Pd显示文摘Adjusting the adsorption energy of adsorbates on catalyst can directly regulate the catalytic performance and reaction pathways of heterogeneous catalysis.Herein,we report a novel strategy,introducing polarization-induced electric field(PIEF)with different directions,to manipulate the adsorption energy of intermediates and reaction pathway of formic acid electrooxidation on Pd.Tourmaline nanoparticles are applied as the PIEF provider,of which the direction is successfully controlled via aligning the dipoles in tourmaline in a strong external electric field.Experimental and theoretical results systematically reveal that positive PIEF leads to an electron-deficient state of Pd,reduced adsorption energy of COad,enhanced adsorption energy of*HCOOH and*OH,and promoted formate pathway of formic acid electrooxidation.Pd/TNP+/FTO,with the aid of positive PIEF,shows three-fold enhancement in the formic acid electrooxidation(4.74 mA·cm^(−2))with high durability and anti-poisoning ability compared with pristine Pd.This study leads a new route to design formic acid electrocatalysts and provides an understanding on how to control the adsorption energy of adsorbates on electrocatalysts by an internal electric field.Shuozhen Hu Yunyun Cheng Guoming Luo Kai Huang Cheng Shi Jie Xu Cheng Lian Shigang Sun Xinsheng Zhang 2023Nano Research2023,16,8:0
13Molecular engineering on all ortho-linked carbazole/oxadiazole hybrids toward highly-efficient thermally activated delayed fluorescence materials in OLEDs显示文摘The highest efficiency thermally activated delayed fluorescence(TADF)emitters in OLEDs are mostly based on twisted donor/acceptor(D/A)type organic molecules.Herein,we report the rational molecular design on twisted all ortho-linked carbazole/oxadiazole(Cz/OXD)hybrids with tunable D-A interactions by adjusting the numbers of donor/acceptor units and electron-donating abilities.Singlet-triplet energy bandgaps(ΔEST)are facilely tuned from^0.4,0.15 to^0 eV in D-A,D-A-D to A-D-A type compounds.This variation correlates well with triplet-excited-state frontier orbital spatial separation efficiency.NonTADF feature with solid state photoluminescence quantum yield(PLQY)<10%is observed in D-A type 2CzOXD and D-A-D type 4CzOXD.Owing to the extremely lowΔEST for efficient reverse intersystem crossing,strong TADF with PLQY of 71%-92%is achieved in A-D-A type 4CzDOXD and 4tCzDOXD.High external quantum efficiency from 19.4%to 22.6%is achieved in A-D-A typed 4CzDOXD and 4tCzDOXD.Wenbo Yuan Hannan Yang Mucan Zhang Die Hu Shigang Wan Zijing Li Changsheng Shi Ning Sun Youtian Tao Wei Huang 2019Chinese Chemical Letters2019,30,11:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费