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| 1 | Effect of acetazolamide on stable carbon isotope fractionation in Chlamydomonas reinhardtii and Chlorella vulgaris显示文摘The effect of extracellular carbonic anhydrase (CAex) on stable carbon isotope fractionation in algae is still unclear. The stable carbon isotope composition and algal growth in the presence and absence of the membrane-impermeable CA inhibitor acetazolamide were compared in Chlamydomonas reinhardtii and Chlorella vulgaris. The CAex of both algal species contributed about 9‰ of the stable carbon isotope fractionation and exhibited a dosage effect. Therefore, evidence in vivo that CAex leads to a larger carbon isotope fractionation of algae is presented. | WU YanYou XU Ying LI HaiTao XING DeKe | 2012 | Chinese Science Bulletin2012，57，7： | 10 |
| 2 | Identification of Odor Volatile Compounds and Deodorization ofPaphia undulata Enzymatic Hydrolysate显示文摘Unfavorable fishy odour is an inevitable problem in aquatic products. In the present study, headspace solid-phase microextraction gas chromatography mass spectrometry(HS-SPME-GC-MS) analysis of volatiles from untreated samples and three deodorized samples(under the optimal conditions) of Paphia undulata enzymatic hydrolysate revealed that the compounds contributing to the distinctive odor were 1-octen-3-ol, n-hexanal, n-heptanal, 2,4-heptadienal, and 2,4-decadienal, whereas n-pentanal, n-octanal, n-octanol, benzaldehyde, 2-ethylfuran and 2-pentylfuran were the main contributors to the aromatic flavor. The deodorizing effects of activated carbon(AC) adsorption, yeast extract(YE) masking and tea polyphenol(TP) treatment on a P. undulata enzymatic hydrolysate were investigated using orthogonal experiments with sensory evaluation as the index. The following optimized deodorization conditions were obtained: AC adsorption(35 mg mL^(-1), 80℃, 40 min), YE masking(7 mg mL^(-1), 45℃, 30 min) and TP treatment(0.4 mg mL^(-1), 40℃, 50 min). AC adsorption effectively removed off-flavor volatile aldehydes and ketones. YE masking modified the odor profile by increasing the relative contents of aromatic compounds and decreasing the relative contents of aldehydes and ketones. The TP treatment was not effective in reducing the odor score, but it significantly reduced the relative content of aldehydes while increasing that of alkanes. It is also notable that TP effectively suppressed trimethylamine(TMA) formation in a P. undulate hydrolysate solution for a period of 72 h. | CHEN Deke CHEN Xin CHEN Hua CAI Bingna WAN Peng ZHU Xiaolian SUN Han SUN Huili PAN Jianyu | 2016 | Journal of Ocean University of China2016，15，6： | 10 |
| 3 | Ultrasonic Extraction of Polysaccharides from Laminaria japonica and Their Antioxidative and Glycosidase Inhibitory Activities显示文摘In the present study, ultrasonic extraction technique(UET) is used to improve the yield of polysaccharides from Laminaria japonica(LJPs). And their antioxidative as well as glycosidase inhibitory activities are investigated. Box-Behnken design(BBD) combined with response surface methodology(RSM) is applied to optimize ultrasonic extraction for polysaccharides. The optimized conditions are obtained as extraction time at 54 min, ultrasonic power at 1050 W, extraction temperature at 80℃ and ratio of material to solvent at 1:50(g m L-1). Under these optimal ultrasonic extraction conditions, an actual experimental yield(5.75% ± 0.3%) is close to the predicted result(5.67%) with no significant difference(P > 0.05). Vitro antioxidative and glycosidase inhibitory activities tests indicate that the crude polysaccharides(LJP) and two major ethanol precipitated fractions(LJP1 and LJP2) are in a concentration-dependent manner. LJP2(30%-60% ethanol precipitated polysaccharides) possesses the strongest α-glucosidase inhibitory activity and moderate scavenging activity against hydroxyl radicals(66.09% ± 2.19%, 3.0 mg m L-1). Also, the inhibitory activity against α-glucosidase(59.08% ± 3.79%, 5.0 mg m L-1) is close to that of acarbose(63.99% ± 3.27%, 5.0 mg m L-1). LJP1(30% ethanol precipitated polysaccharides) exhibits the strongest scavenging activity against hydroxyl radicals(99.80% ± 0.00%, 3.0 mgm L-1) and moderate α-glucosidase inhibitory activity(47.76% ± 1.92%, 5.0 mg m L-1). LJP shows the most remarkable DPPH scavenging activity(66.20% ± 0.11%, 5.0 mg m L-1) but weakest α-glucosidase inhibitory activity(37.77% ± 1.30%, 5.0 mg m L-1). However, all these LJPs exert weak inhibitory effects against α-amylase. These results show that UET is an effective method for extracting bioactive polysaccharides from seaweed materials. LJP1 and LJP2 can be developed as a potential ingredient in hypoglycemic agents or functional food for the management of diabetes. This study provides scientific evidence and advances in the preparation technology and a hypoglycemic activities evaluation method for seaweed polysaccharides, especially glycosidase inhibition in combination with an antioxidative activity evaluation method. | WAN Peng YANG Xiaoman CAI Bingna CHEN Hua SUN Huili CHEN Deke PAN Jianyu | 2015 | Journal of Ocean University of China2015，14，4： | 6 |
| 4 | MapReduce rationality verification based on object Petri net显示文摘As a powerful distributed data processing mechanism,MapReduce supports abundant parallel applications that process massive data on computer clusters.To process the massive data efficiently and correctly,a rational design for the MapReduce procedure is desired.An irrational MapReduce procedure can cause great waste of computing resources and even paralyze the execution system.With the wide application of MapReduce,the unavoidable drawback of irrational MapReduce procedures becomes increasingly serious.To solve this problem,a method for verifying the rationality of a MapReduce procedure before executing it on a computer cluster is proposed.This method constructs the rationality criteria for MapReduce,and then studies an automatic approach for modelling MapReduce with an executable model object Petri net(OPN).Finally,the approaches for automatically identifying the rationality criteria by analyzing the consequence of model execution is developed.The results from extensive case studies demonstrate that the proposed method is feasible and effective. | DING Zeliu GUO Deke CHEN Xi CHEN Jin | 2019 | Journal of Systems Engineering and Electronics2019，30，5： | 5 |
| 5 | Koszul algebras and finite Galois coverings显示文摘The relationships between Koszulity and finite Galois coverings are obtained, which provide a construction of Koszul algebras by finite Galois coverings. | ZHAO DeKe HAN Yang | 2009 | Science China Mathematics2009，52，10： | 5 |
| 6 | Population-standardized genetic risk score: the SNP-based method of choice for inherited risk assessment of prostate cancer显示文摘几条不同途径对为决定前列腺癌症(PCa ) 风险的临床医生可得到。利用单个核苷酸多型性(SNP ) 的各种各样的 PCa 风险评价方法的临床的有效性被建立了;然而,这些基于 SNP 的方法没被比较。这研究的目的是为 PCa 风险评价比较三个最通常使用的基于 SNP 的方法。参加者是人(n = 1654 ) 在 PCa 开发的未来的研究注册了。59 PCa 联系风险的 SNP 的遗传型在这个队是可得到的。精明的基于 SNP 的基因风险分数(GRS ) 的三个方法被用于象风险等位基因计数那样的单个疾病风险的评估(GRS 皇家装甲兵) ,加权的风险等位基因计数(GRS-wRAC ) ,和标准化人口的基因风险得分(GRS-PS ) 。吝啬的 GRS 被计算,并且表演在操作典型曲线(AUC ) 和积极预兆的价值(PPV ) 的接收装置下面用区域被比较。所有基于 SNP 的方法被发现独立地与 PCa 被联系(所有 P <0.05;因此他们的临床的有效性) 。分别地,在人与或没有 GRS 皇家装甲兵使用的 PCa 的吝啬的 GRS 用 GRS-wRAC 是 55.15 和 53.46 分别地,是 7.42 和 6.97,使用的 GRS-PS 是 1.12 和 0.84,分别地(所有 P <0.05 为病人与或没有 PCa 之间的差别) 。在基于 AUC 从 non-PCa 区别 PCa 并且在预言 PCa 同样执行的所有三个基于 SNP 的方法基于 PPV 冒险(所有 P >0.05 为在三个方法之间的比较) ,并且所有三个基于 SNP 的方法比家庭历史有显著地更高的 AUC (所有 P <0.05 ) 。从这研究的结果建议当三个大多数通常使用了时, 基于SNP 的方法在在人口水平从 non-PCa 区别 PCa 同样表现了,因为, GRS-PS 是为在单个水平的风险评价的选择的方法它的价值(在 1.0 代表平均人口风险的地方)能容易不管在计算使用的联系风险的 SNP 的数字被解释。 | Carly A Conran Rong Na Haitao Chen Deke Jiang Xiaoling Lin S Lilly Zheng Charles B Brendler Jianfeng Xu | 2016 | Asian Journal of Andrology2016，18，4： | 4 |
| 7 | Few-shot text classification by leveraging bi-directional attention and cross-class knowledge显示文摘Few-shot text classification targets at the situation where a model is developed to classify newly incoming query instances after acquiring knowledge from a few support instances.In this paper,we investigate few-shot text classification under a metric-based meta-learning framework.While the representations of the query and support instances are the key to the classification,existing study handles them independently in the text encoding stage.To better describe the classification features,we propose to exploit their interaction with adapted bi-directional attention mechanism.Moreover,distinct from previous approaches that encode different classes individually,we leverage the underlying cross-class knowledge for classification.To this end,we conceive the learning target by incorporating the large margin loss,which is expected to shorten the intra-class distances while enlarging the inter-class distances.To validate the design,we conduct extensive experiments on three datasets,and the experimental results demonstrate that our solution outperforms its state-of-the-art competitors.Detailed analyses also reveal that the bi-directional attention and the cross-class knowledge both contribute to the overall performance. | Ning PANG Xiang ZHAO Wei WANG Weidong XIAO Deke GUO | 2021 | Science China(Information Sciences)2021，64，3： | 3 |
| 8 | From one to crowd: a survey on crowdsourcing-based wireless indoor localization显示文摘 | Xiaolei ZHOU Tao CHEN Deke GUO Xiaoqiang TENG Bo YUAN | 2018 | Frontiers of Computer Science2018，12，3： | 2 |
| 9 | Photosynthetic capability and Fe, Mn, Cu, and Zn contents in two Moraceae species under different phosphorus levels显示文摘The strong adaptability of Broussonetia papyrifera(L.) Vent. to low phosphorus(P) conditions can be attributed to the large amount of root-exuded organic acids and the high ef?ciency of P extraction. However,microelement contents are in?uenced by low-P stress, and their effects on the photosynthetic capability of B. papyrifera remain unknown. In this study, we investigated the effects of low-P treatment on net photosynthetic rate(P_N);chlorophyll a ?uorescence(ChlF) characteristics; and Fe,Mn, Cu, and Zn contents of B. papyrifera and Morus alba L. seedlings. Results show that B. papyrifera exhibited better photosynthetic capability under moderate P de?-ciency(0.125, 0.063, and 0.031 mmol/L P treatments),whereas the photosynthetic capability of M. alba decreased under moderate and severe P de?ciency(0.016 and0 mmol/L P treatments). Under moderate P de?ciency, the decrease in Cu and Zn contents in B. papyrifera was lower than that in M. alba. Under severe P de?ciency, a considerable decrease of photosynthetic capability in B. papyrifera and M. alba was associated with low Cu and Zn contents. The P N of the two Moraceae species exhibited a better correlation with Cu and Zn contents than with Fe or Mn content. P de?ciency could not only decrease cyclic photophorylation and photosynthetic ef?ciency, but could also affect the stability of thylakoid membrane structure and electron transport ef?ciency by in?uencing the contents of Cu or Zn, thereby affecting photosynthesis. | Deke Xing Yanyou Wu Rui Yu Yansheng Wu Chuan Zhang Zheng Liang | 2016 | Acta Geochimica2016，35，3： | 2 |
| 10 | TIO: A VLC-Enabled Hybrid Data Center Network Architecture显示文摘To satisfy the ever-increasing bandwidth demand of modern data centers, researchers have proposed hybrid Data Center Networks(DCNs), which employ high-bandwidth Optical Circuit Switches(OCSs) to compensate for Electrical Packet Switches(EPS). Existing designs, such as Helios and c-Through, mainly focus on reconfiguring optical devices to meet the estimated traffic requirements. However, these designs face two major challenges in their OCS-based networks, namely, the complex control mechanism and cabling problems. To solve these challenges, we propose TIO, a hybrid DCN that employs Visible Light Communication(VLC) instead of wired OCS design to connect racks. TIO integrates the wireless VLC-based Jellyfish and wired EPS-based Fat Tree seamlessly and combines the opposite and complementary characteristics, including wireless VLC direct connection and wired electrical packet switching, random graph, and Clos topology properties. To further exploit the merits of TIO, we design a hybrid routing scheme and congestion-aware flow scheduling method. Comprehensive evaluations indicate that TIO outperforms the Jellyfish and Fat Tree in both topology properties and network performance, and the flow scheduling method also evidently improves performance. | Yudong Qin Deke Guo Guoming Tang Bangbang Ren | 2019 | Tsinghua Science and Technology2019，24，4： | 2 |
| 11 | The influence of three mangrove species on the distribution of inorganic nitrogen and phosphorus in the Quanzhou Bay estuarine wetland soils显示文摘This study aims to investigate the effects of region and three regional dominated mangrove species(Avicennia marina, Aegiceras corniculatum and Kandelia candel) on the distribution of inorganic nitrogen and phosphorus. Measurement of the inorganic nitrogen and phosphorus and enzymatic activities was carried out in soils covered by three mangrove species in the Quanzhou Bay estuarine wetlands, a typical coastal wetland in China.Species with a higher biomass in upstream and midstream absorb more nitrogen from soils, and the retention of the available phosphorus in the soils of different regions causes the regional variation of phosphorus. In areas dominated by A. marina, nitrate nitrogen is lower while available phosphorus is higher. Meanwhile, nitrate nitrogen and available phosphorus are higher in the soils covered by K. candel.Moreover, all three species affect the elemental and enzymic stoichiometry. The mangrove species influences the diversity of the elemental and enzymic stoichiometric relationship through differential microenvironments, which induce the biodiversity of wetland ecosystems. Thus, this study may facilitate a better understanding of the transformation ability of mangroves to nitrogen and phosphorus and will therefore be beneficial for providing a basis for the ecological restoration of estuarine wetlands. | Guiyao Zhou Yanyou Wu Deke Xing Mingming Zhang Rui Yu Weiyi Qiao Qaiser Javed | 2016 | Acta Geochimica2016，35，1： | 1 |
| 12 | Earliest domestication of common millet(Panicummiliaceum)in East Asia extended to 10 000 years ago显示文摘 | Houyuan Lu Jianping Zhang Kam-biu Liu Naiqin Wu Yumei Li Kunshu Zhou Maolin Ye Tianyu Zhang Hai-jiang Zhang Xiaoyan Yang Licheng Shen Deke Xu Quan Li | 2009 | PNAS2009，106，18： | 1 |
| 13 | An introduction to building information modeling 显示文摘 | Deke Smith | 2007 | Journal of BuildingInformation Modeling2007，12，2： | 1 |
| 14 | Bubble shape in non-Newtonian liquids显示文摘 | Dekee D Chan Man Fong C F Yao J | 2002 | Journal of Applied Me- chanics (Transactions of the ASME)2002，69，5： | 1 |
| 15 | Earliest domestication of common millet(Panicummiliaceum)in East Asia extended to 10 000 years ago 显示文摘 | Houyuan Lu Jianping Zhang Kam-biu Liu Naiqin Wu Yumei Li Kunshu Zhou Maolin Ye Tianyu Zhang Hai-jiang Zhang Xiaoyan Yang Licheng Shen Deke Xu Quan Li | 2009 | Proceedings of the National Academy of Sciences of the Unit-ed States of America2009，106，： | 1 |
| 16 | Design and optimization of VLC based small-world data centers显示文摘The visible light communication (VLC) has the potential to provide dense and fast connectivity at low cost. In this paper, we propose a novel VLC enabled Wireless Small-World Data Center (WSWDC). It employs VLC links to achieve a fully wireless data center network (DCN) across racks for the first time. The using of VLC links eliminates hierarchical switches and inter-rack cables, and thus reducing hardware investment, as well as maintenance cost. More precisely, to simplify the configuration and control operations, we propose three DCN design rationales:(1) fully-wireless, all inter-rack links are wireless;(2) easy-deployable, it is not necessary to change the existing infrastructure inside data center;(3) plug-and-play, no extra centralized control operations are required. Previous proposals, however, cannot achieve the three rationales simultaneously. To this end, we first use regular VLC links to interconnect racks as a regular grid DCN and optimize the rack placement to shorten the average path length and the network diameter. To further exploiting the benefits of VLC links, a few random VLC links are carefully introduced to update the wireless grid DCN as a wireless small-world DCN. To avoid the potential interference among VLC links, we deploy VLC transceivers at different heights on the top of each rack. In this way, VLC links would not interfere with others at each height level. Moreover, we design a greedy but efficient routing method for any pair of racks using their identifiers as inputs. Comprehensive evaluation results indicate that our WSWDC exhibits good topological properties and network performance. | Yudong QIN Deke GUO Lailong LUO Geyao CHENG Zeliu DING | 2019 | Frontiers of Computer Science2019，13，5： | 1 |
| 17 | Bubble velocity and coalescence in viscoelastic liquids 显示文摘 | DEKEE D CARREAU P J MORDARSKI J | 1986 | Chem Eng Sci1986，41，9： | 1 |
| 18 | Motion and coalescence of gas bubbles in non-Newtonian polymer solutions显示文摘 | DEKEE D CHHABRA R P DAJAN A | 1990 | J Non-Newtonian Fluid Mech1990，37，1： | 1 |
| 19 | Minimum-Cost Forest for Uncertain Multicast with Delay Constraints显示文摘The use of multicast transmission can efficiently reduce the consumption of network resources by jointly serving multiple destinations with a single source node. Currently, many multicast applications impose the constraint wherein multicast flows must be processed by a series of Virtual Network Functions(VNFs) before reaching their destinations. Given a multicast transmission, there are usually multiple server nodes, each of which is able to host all the required VNFs. Thus, the multicast flow should be initially steered to one or a few selected server nodes that act as pseudo sources, and the destinations will then retrieve new flow from any of these pseudo sources.In this paper, we model this kind of multicast as an uncertain multicast with multiple pseudo sources, whose routing structure is usually a forest consisting of multiple isolated trees. We then characterize and construct the Delay-guaranteed Minimum Cost Forest(D-MCF) such that each path from the source to the destination satisfies the end-to-end delay constraint. To tackle this NP-hard problem, we design two efficient methods, the Partition Algorithm(PA) and the Combination Algorithm(CA), to approximate the optimal solution. Theoretical analyses and evaluations indicate that these two methods can generate the desired routing forest for any multicast transfer.Moreover, the PA method achieves a better balance between performance and time consumption than the CA method. The evaluation results show that PA-(Ω+20) can reduce total cost by 49:02% while consuming 12:59% more time, thus significantly outperforming the CA-(Ω+20) method. | Bangbang Ren Geyao Cheng Deke Guo | 2019 | Tsinghua Science and Technology2019，24，2： | 1 |
| 20 | Expansible and cost-effective network structures for data centers using dual-portservers 显示文摘 | Guo Deke Chen Tao Li Dan | 2012 | IEEE Trans on Computers2012，62，7： | 1 |
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