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Journal of Zhejiang University-Science C(Computers and Electronics) 2014年第10期15卷 917-928页

作者： gui-jie WANG Yun-long CAI Min-jian ZHAO jie ZHONG Department of Information Science and Electronic Engineering Zhejiang University

In this study, a two-hop wireless sensor network with multiple relay nodes is considered where the amplify-and-forward(AF) scheme is employed. Two algorithms are presented to jointly consider interference suppression and power allocation(PA) based on the minimization of the symbol error rate(SER) criterion. A stochastic gradient(SG) algorithm is developed on the basis of the minimum-SER(MSER) criterion to jointly update the parameter vectors that allocate the power levels among the relay sensors subject to a total power constraint and the linear receiver. In addition, a conjugate gradient(CG) algorithm is developed on the basis of the SER criterion. A centralized algorithm is designed at the fusion center. Destination nodes transmit the quantized information of the PA vector to the relay nodes through a limited-feedback channel. The complexity and convergence analysis of the proposed algorithms are carried out. Simulation results show that the proposed two adaptive algorithms significantly outperform the other previously reported algorithms.

关键词： Cooperative communications Adaptive filtering Symbol error rate(SER) Interference suppression Power allocation

Design and Kinematic Analysis of a Novel Humanoid Robot Eye Using Pneumatic Artificial Muscles

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Journal of Bionic Engineering 2008年第3期5卷 264-270页

作者： Xuan-yin Wang Yang Zhang Xiao-jie Fu gui-shan Xiang State Key Laboratory of Fluid Power Transmission and Control Zhejiang University Hangzhou 310027 P. R. China

This paper proposed a novel humanoid robot eye, which is driven by six Pneumatic Artificial Muscles （PAMs） and rotates with 3 Degree of Freedom （DOF）. The design of the mechanism and motion type of the robot eye are inspired by that of human eyes. The model of humanoid robot eye is established as a parallel mechanism, and the inverse-kinematic problem of this flexible tendons driving parallel system is solved by the analytical geometry method. As an extension, the simulation result for saccadic movement is presented under three conditions. The design and kinematic analysis of the prototype could be a sig- nificant step towards the goal of building an autonomous humanoid robot eye with the movement and especially the visual functions similar to that of human.

关键词： bionic robotics bio-inspiration humanoid robot eye air muscle inverse-kinematic

Jasmonic acid alleviates cadmium toxicity in Arabidopsis via suppression of cadmium uptake and translocation

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Journal of Integrative Plant Biology 2020年第2期62卷 218-227页

作者： gui jie Lei Li Sun Ying Sun Xiao Fang Zhu gui Xin Li Shao Jian Zheng State Key Laboratory of Plant Physiology and Biochemistry College of Life SciencesZhejiang UniversityHangzhou 310058China State Key Laboratory of Soil and Sustainable Agriculture Institute of Soil ScienceChinese Academy of SciencesNanjing 210008China College of Agronomy and Biotechnology Zhejiang UniversityHangzhou 310058China

Jasmonic acid(JA)is thought to be involved in plant responses to cadmium(Cd)stress,but the underlying molecular mechanisms are poorly ***,we show that Cd treatment rapidly induces the expression of genes promoting endogenous JA synthesis,and subsequently increases the JA concentration in Arabidopsis ***,exogenous methyl jasmonate(MeJA)alleviates Cd-generated chlorosis of new leaves by decreasing the Cd concentration in root cell sap and shoot,and decreasing the expression of the AtIRT1,AtHMA2 and AtHMA4 genes promoting Cd uptake and long-distance translocation,*** contrast,mutation of a key JA synthesis gene,At AOS,greatly enhances the expression of AtIRT1,AtHMA2 and AtHMA4,increases Cd concentration in both roots and shoots,and confers increased sensitivity to *** Me JA recovers the enhanced Cd-sensitivity of the ataos mutant,but not of atcoi1,a JA receptor *** addition,exogenous Me JA reduces NO levels in Cd-stressed Arabidopsis root *** together,our results suggest that Cd-induced JA acts via the JA signaling pathway and its effects on NO levels to positively restrict Cd accumulation and alleviates Cd toxicity in Arabidopsis via suppression of the expression of genes promoting Cd uptake and long-distance translocation.

关键词： Jasmonic acid cadmium uptake translocation

An Improved Synthesis of Laminin Fragment CR9

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Chinese Chemical Letters 2002年第12期13卷 1154-1157页

作者： gui jie TIAN Shi Jun LI De Xin WANG Institute of Materia Medica Chinese Academy of Medical SciencesBeijing 100050

Laminin nonapeptide CR9 was synthesized via two different methods. A notably enhanced yield (46.8%) was obtained from method B compared to that (12.4%) from standard protocol (method A).

关键词： Solid-phase peptide synthesis MBHA resin Pac resin.

Sulfonyl Imidazoles as Reagents for the Preparation of Sulfonates and Sulfonamides

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Chemical Research in Chinese Universities 2008年第1期24卷 54-57页

作者： REN Yu-jie gui Bin WU Hai-xia SUN Xiao-bin School of Chemistry ＆ Molecular Engineering East China University of Science and Technology Shanghai 200237 P. R. China

Several new sulfonates and sulfonamides were synthesized with sulfonyl imidazoles as reagents. These compounds were characterized by ^1H NMR. The melting points of all solids synthesized were obtained on Fisher-Johns ... 详细信息

关键词： Sulfonyl imidazole Sulfonate Sulfonamide Synthesis

Radical lymph node dissection and assessment:Impact on gallbladder cancer prognosis

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World Journal of Gastroenterology 2013年第31期19卷 5150-5158页

作者： gui-jie Liu Xue-Hua Li Yan-Xin Chen Hui-Dong Sun gui-Mei Zhao San-Yuan Hu Department of General Surgery Qilu Hospital Shandong University Department of Hepatobiliary Surgery Liaocheng People’s Hospital and Liaocheng Clinical School of Taishan Medical University

AIM: To investigate the lymph node metastasis patterns of gallbladder cancer(GBC) and evaluate the optimal categorization of nodal status as a critical prognostic ***: From May 1995 to December 2010,a total of 78 consecutive patients with GBC underwent a radical resection at Liaocheng People's Hospital.A radical resection was defined as removing both the primary tumor and the regional lymph nodes of the ***,operative and pathologic data were *** lymph nodes retrieved were examined histologically for metastases routinely from each *** positive lymph node count(PLNC) as well as the total lymph node count(TLNC) was recorded for each *** the metastatic to examined lymph nodes ratio(LNR) was ***-specific survival(DSS) and predictors of outcome were ***: With a median follow-up time of 26.50 mo(range,2-132 mo),median DSS was 29.00 ± 3.92 mo(5-year survival rate,20.51%).Nodal disease was found in 37 patients(47.44%).DSS of node-negative patients was significantly better than that of nodepositive patients(median DSS,40 mo vs 17 mo,χ2= 14.814,P < 0.001),while there was no significant difference between N1 patients and N2 patients(median DSS,18 mo vs 13 mo,χ2= 0.741,P = 0.389).Optimal TLNC was determined to be *** node-negative patients were divided according to TLNC,there was no difference in DSS between TLNC < 4 subgroup and TLNC ≥ 4 subgroup(median DSS,37 mo vs 54 mo,χ2 = 0.715,P = 0.398).For node-positive patients,DSS of TLNC < 4 subgroup was worse than that of TLNC ≥ 4 subgroup(median DSS,13 mo vs 21 mo,χ2= 11.035,P < 0.001).Moreover,for node-positive patients,a new cut-off value of six nodes was identified for the number of TLNC that clearly stratified them into 2 separate survival groups(< 6 or ≥ 6,respectively;median DSS,15 mo vs 33 mo,χ2= 11.820,P < 0.001).DSS progressively worsened with increasing PLNC and LNR,but no definite cut-off value could be *** analysi

关键词： Gallbladder neoplasms Lymphatic metastasis Lymph node excision Lymph node ratio Prognosis

Sesquiterpenes and prenylated C_6–C_3 compounds from the stems of Illicium henryi

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Chinese Chemical Letters 2015年第12期26卷 1538-1541页

作者： Peng-Yu Zhuang gui-jie Zhang Xiao-Jing Wang Yan Zhang Shi-Shan Yu State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical College

One new sesquiterpene compound, namely, illihenlactone A（1）, and one new prenylated C6–C3 compound, illihenryione H（2）, along with three known sesquiterpenes（3–5） were isolated from the stems of Illicium henryi. The structures of 1 and 2 were elucidated by spectroscopic evidence including NMR, HRESIMS and circular dichroism（CD）. Compound 2 exhibited a weak inhibitory ratio for bglucuronidase release induced by platelet-activating factor（PAF） in rat polymorphonuclear leukocytes（PMNs） in vitro.

关键词： Illicium activating elucidated spectroscopic hydroxymethyl circular shrub spectrometer Elmer extracts

Effects of Dietary Net Energy Density and Standardized Ileal Digestible Lysine: Net Energy Ratio on the Performance and Carcass Characteristic of Growing-Finishing Pigs Fed Low Crude Protein Supplemented with Crystalline Amino Acids Diets

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Agricultural Sciences in China 2011年第4期10卷 602-610页

作者： ZHANG gui-jie YI Xue-wu CHU Li-cui LU Ning Htoo John QIAO Shi-yan State Key Laboratory on Animal Nutrition College of Animal Science and Technology China Agricultural University Beijing 100193 P. R. China Evonik Degussa GmbH Rodenbacher Chaussee 4 Hanau 63457 Germany

Two 3×3 factorial design trials with 1 080 of Yorkshire×Landrace×Duroc barrows were conducted to investigate the effects of dietary net energy （NE） density and standardized ileal digestible （SID） lysine：NE ratio on the performance of growing- finishing pigs and carcass characteristic of finishing pigs fed low crude protein （CP） supplemented with crystalline amino acids （CAA） diets. Low CP corn-soybean meal basal diets （14% for Exp. 1 and 11% for Exp. 2） supplemented with crystalline lysine, methionine, threonine, and tryptophan were formulated. Nine treatments with increasing NE density and SID lysine：NE ratio were used in each trial （Exp. 1： 9.66, 9.87, and 10.08 MJ kg-1 NE, 0.89, 0.96, and 1.03 g MJ-1 SID lysine： NE; Exp. 2： 9.83, 10.04, and 10.25 MJ kg-1 NE, 0.69, 0.76, and 0.83 g MJ-1 SID lysine：NE）. In Exp. 1, we observed that the average daily gain （ADG） for barrows that received the diet containing 9.87 MJ kg-1 NE was significantly higher than that of barrows fed a 9.66 MJ kg-1 NE diet （P0.05）, but no difference was observed when compared with barrows that received a diet containing 10.08 MJ kg-1 NE （P0.05）. The ADG was affected both linearly （P0.05） and quadratically （P0.05） as the SID lysine：NE ratio increased. The NE density or SID lysine：NE ratio and their interaction had no effect on the average daily feed intake （ADFI） and serum urea nitrogen （SUN）（P0.05）. The feed to gain ratio （F：G） decreased （linearly, P0.05; quadratically, P0.05） as the NE density or SID lysine：NE ratio increased, but no interaction of NE density and SID lysine： NE ratio on the F：G. In Exp. 2, the dietary NE density both linearly （P0.05） and quadratically （P0.05） affected the ADG and F：G. Barrows that received a diet containing 10.04 MJ kg-1 NE had a greater ADG （P0.05） than barrows that received a 9.83 MJ kg-1 diet, but there was no difference （P0.05） as compared with barrows that received a diet containing 10.25 MJ kg-1 NE. F：G was significantly higher （P0.05） for barrows that re

关键词： pig lysine net energy growth performance carcass characteristic

Vascular Cambium-Localized AtSPDT Mediates Xylem-to-Phloem Transfer of Phosphorus for Its Preferential Distribution in Arabidopsis

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Molecular Plant 2020年第1期13卷 99-111页

作者： Guangda Ding gui jie Lei Naoki Yamaji Kengo Yokosho Namiki Mitani-Ueno Sheng Huang Jian Feng Ma institute of Plant Science and Resources Okayama UniversityChuo 2-20-1KurashikiJapan College of Resources and Environment Huazhong Agricultural UniversityWuhan 430070China

During plant growth and development mineral elements are preferentially delivered to different organs and tissues to meet the differential demand. It has been shown that the preferential distribution of mineral nutrients in gramineous plants is mediated by node-based transporters, but the mechanisms of preferential distribution in dicots are poorly understood. Here, we report a distinct mechanism for the preferential distribution of phosphorus (P) in Arabidopsis plants, revealed by detailed functional analysis of AtSPDT/AtSULTR3;4 (SULTR-like P Distribution Transporter), a homolog of rice OsSPDT. Like OsSPDT, AtSPDT is localized at the plasma membrane and showed proton-dependent transport activity for P. Interestingly, we found that AtSPDT is mainly expressed in the rosette basal region and leaf petiole, and its expression is up-regulated by P deficiency. Tissue-specific analysis showed that AtSPDT is mainly located in the vascular cambium of different organs, as well as in the parenchyma tissues of both xylem and phloem regions. Knockout of AtSPDT inhibited the growth of new leaves under low P due to decreased P distribution to those organs. The seed yields of the wild-type and atspdt mutant plants are similar, but the seeds of mutant plants contain – less P. These results indicate that AtSPDT localized in the vascular cambium is involved in preferential distribution of P to the developing tissues, through xylem-to-phloem transfer mainly at the rosette basal region and leaf petiole.

关键词： A rabidopsis thaliana phosphate transporter SPDT phosphorus distribution vascular cambium

Diversity arrays technology (DArT) for studying the genetic polymorphism of flue-cured tobacco (Nicotiana tabacum)

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2013年第7期14卷 570-577页

作者： Xiu-ping LU Bing-guang XIAO Yong-ping LI Yi-jie gui Yu WANG Long-jiang FAN Department of Agronomy Zhejiang University Yunnan Academy of Tobacco Agricultural Sciences and China Tobacco Breeding Research Center at Yunnan

Diversity arrays technology （DART） is a microarray-based marker system that achieves high throughput by reducing the complexity of the genome. A DArT chip has recently been developed for tobacco. In this study, we genotyped 267 flue-cured cultivars/landraces, including 121 Chinese accessions over five decades from widespread geographic regions in China, 103 from the Americas, and 43 other foreign cultivars, using the newly developed chip. Three hundred and thirty polymorphic DArT makers were selected and used for a phylogenetic analysis, which sug- gested that the 267 accessions could be classified into two subgroups, which could each be further divided into 2-4 sections. Eight elite cultivars, which account for 83% of the area of Chinese tobacco production, were all found in one subgroup. Two high-quality cultivars, HHDJY and Cuibil, were grouped together in one section, while six other high-yield cultivars were grouped into another section. The 330 DArT marker clones were sequenced and close to 95% of them are within non-repetitive regions. Finally, the implications of this study for Chinese flue-cured tobacco breeding and production programs were discussed.

关键词： Nicofiana tabacum Diversity arrays technology (DART) Genetic diversity Flue-cured tobacco