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| 1 | Assessment of different biomarkers provides valuable diagnostic standards in the evaluation of the risk of acute rejection显示文摘尖锐拒绝(AR ) 是为长期的拒绝在的一个强壮的风险因素肾移植接受者。AR 事件的精确、及时的诊断为疾病控制和预后是很重要的。因此,客观地评估了病人的有免疫力的地位在移植以后的治疗的地里是必要的。这纵的研究在外部血 mononuclear 房间( PBMC )和活体检视在 sera ,CD4+ T 房间的细胞内部的腺苷 triphosphate ( iATP )版本水平,和 granzyme B/perforin 表示调查了五 biomarkers ,人的白血球抗原( HLA ) -G5 和 sCD30 水平的实用性,总共肾的移植的 84 个案例的检测 AR 和 biomarkers 的决定。数据证明接受者与临床或证明的活体检视拒绝显著地增加了 CD4+ T 房间的 iATP 版本水平,并且提高了 sCD30,但是与稳定的接枝功能与个人相比在 sera 降低了 HLA-G5 水平。granzyme B 和 perforin 的表示层次也在 PBMC 和 AR 病人的接枝活体检视被提高。一起拿,我们鉴别 HLA-G5 的 sCD30, iATP, granzyme B, perforin,和 downregulation 的 upregulation 能提供珍贵诊断标准在 AR 的风险识别那些接受者。并且 iATP 可以比为预言接枝拒绝事件的其它是更好的 biomarker。 | Jin Zheng Xiaoming Ding Xiaohui Tian Zhankui Jin Xiaoming Pan Hang Yan Xinshun Feng Jun Hou Heli Xiang Li Ren Puxun Tian Wujun Xue | 2012 | Acta Biochimica et Biophysica Sinica2012，44，9： | 8 |
| 2 | Physical and mental health conditions of young college students with different Traditional Chinese Medicine constitutions in Zhejiang Province of China显示文摘OBJECTIVE: To investigate Traditional Chinese Medicine(TCM) constitutions of youths in colleges,and their physical and mental health conditions of different TCM constitutions, so as to provide a theoretical basis for the TCM way to improve young people's physical and mental health.METHODS: The Standard TCM Constitutions' Classification and Determination Questionnaire was used to measure the body health condition, and the Symptom Checklist 90 Questionnaire and the Questionnaire of the National Student Physical Health Standards were used to determine mental and physical health conditions respectively in 1421 young participants validly answering the questionnaires in Zhejiang Province.RESULTS: The participants had a mean age of 19.96years(SD = 0.95 years) with the majority of females(55.10%). One fourth of the 1421 participants were the Ping-he constitution and others were the tendency constitutions. Participants with Ping-he module(which has characteristics of moderate posture,rosy, energetic and is a healthy condition in TCM)were healthier than those with tendency constitutions in physical and mental health, with 65.81 ±7.83(men) and 77.99 ± 7.24(women) scores in the physical test and around 1.25 scores in the mental health test. College students with combined biased constitutions were more likely suffer force, sensitive, depression and anxiety.CONCLUSION: Most of college students have a tendency or biased constitution which could be more likely to suffer suboptimal health status and diseases. Youths in college themselves and health providers should pay more attention to their potential health issues and make proper healthcare plan according to their own TCM constitution. | Lv Heli Zhu Li Chen Zhiqiang Jin Huijuan Jin Lei | 2015 | Journal of Traditional Chinese Medicine2015，35，6： | 6 |
| 3 | Hypoxic preconditioning advances CXCR4 and CXCR7 expression by activating HIF-1α in MSCs显示文摘 | Hongbao Liu Wujun Xue Guanqun Ge Xiaohui Luo Yang Li Heli Xiang Xiaoming Ding Puxun Tian Xiaohui Tian | 2010 | Biochemical and Biophysical Research Communications2010，，4： | 2 |
| 4 | MEC-Assisted Flexible Transcoding Strategy for Adaptive Bitrate Video Streaming in Small Cell Networks显示文摘Adaptive bitrate video streaming(ABR)has become a critical technique for mobile video streaming to cope with time-varying network conditions and different user preferences.However,there are still many problems in achieving high-quality ABR video streaming over cellular networks.Mobile Edge Computing(MEC)is a promising paradigm to overcome the above problems by providing video transcoding capability and caching the ABR video streaming within the radio access network(RAN).In this paper,we propose a flexible transcoding strategy to provide viewers with low-latency video streaming services in the MEC networks under the limited storage,computing,and spectrum resources.According to the information collected from users,the MEC server acts as a controlling component to adjust the transcoding strategy flexibly based on optimizing the video caching placement strategy.Specifically,we cache the proper bitrate version of the video segments at the edge servers and select the appropriate bitrate version of the video segments to perform transcoding under jointly considering access control,resource allocation,and user preferences.We formulate this problem as a nonconvex optimization and mixed combinatorial problem.Moreover,the simulation results indicate that our proposed algorithm can ensure a low-latency viewing experience for users. | Chunyu Liu Heli Zhang Hong Ji Xi Li | 2021 | China Communications2021，18，2： | 2 |
| 5 | Dynamic Resource Allocation in TDD-Based Heterogeneous Cloud Radio Access Networks显示文摘To fulfill the explosive growth of network capacity, fifth generation(5G) standard has captured the attention and imagination of researchers and engineers around the world. In particular, heterogeneous cloud radio access network(H-CRAN), as a promising network paradigm in 5G system, is a hot research topic in recent years. However, the densely deployment of RRHs in H-CRAN leads to downlink/uplink traffic asymmetry and severe inter-cell interference which could seriously impair the network throughput and resource utilization. To simultaneously solve these two problems, we proposed a dynamic resource allocation(DRA) scheme for H-CRAN in TDD mode. Firstly, we design a clustering algorithm to group the RRHs into different sets. Secondly, we adopt coordinated multipoint technology to eliminate the interference in each set. Finally, we formulate the joint frame structure, power and subcarrier selection problem as a mixed strategy noncooperative game. The simulation results are presented to validate the effectiveness of our proposed algorithm by compared with the existing work. | Zhi Yu Ke Wang Hong Ji Xi Li Heli Zhang | 2016 | China Communications2016，13，6： | 2 |
| 6 | Heterologous expression of LamA gene encoded endo-β-1,3- glucanase and CO2 fixation by bioengineered Synechococcus sp. PCC 7002显示文摘 | Di Li Swati Yewalkar Xiaotao Bi Sheldon Duff Dusko Posarac Heli Wang Layne A. Woodfin Jan-Hendrik Hehemann Sheila C. Potter Francis E. Nano | 2017 | Frontiers of Environmental Science & Engineering2017，11，2： | 1 |
| 7 | Effects of biological activity,light,temperature and oxygen on phosphorus release processes at the sediment and water interface of Taihu Lake,China显示文摘 | Jiang Xia Yao Yang Li Heli | 2008 | Water Research2008，42，： | 1 |
| 8 | Energy aware hierarchical cluster-based routing protocol for WSNs显示文摘Wireless sensor networks(WSNs) are emerging as essential and popular ways of providing pervasive computing environments for various applications. Unbalanced energy consumption is an inherent problem in WSNs, characterized by multi-hop routing and a many-to-one traffic pattern. This uneven energy dissipation can significantly reduce network lifetime. In multi-hop sensor networks, information obtained by the monitoring nodes need to be routed to the sinks, the energy consumption rate per unit information transmission depends on the choice of the next hop node. In an energy-aware routing approach, most proposed algorithms aim at minimizing the total energy consumption or maximizing network lifetime. In this paper, we propose a novel energy aware hierarchical cluster-based(NEAHC) routing protocol with two goals: minimizing the total energy consumption and ensuring fairness of energy consumption between nodes. We model the relay node choosing problem as a nonlinear programming problem and use the property of convex function to find the optimal solution. We also evaluate the proposed algorithm via simulations at the end of this paper. | Wang Ke Ou Yangrui Ji Hong Zhang Heli Li Xi | 2016 | The Journal of China Universities of Posts and Telecommunications2016，23，4： | 1 |
| 9 | Predictive value of hypothermic machine perfusion parameters combined perfusate biomarkers in deceased donor kidney transplantation显示文摘Background:Delayed graft function(DGF)is the main cause of renal function failure after kidney transplantation.This study aims at investigating the value of hypothermic machine perfusion(HMP)parameters combined with perfusate biomarkers on predicting DGF and the time of renal function recovery after deceased donor(DD)kidney transplantation.Methods:HMP parameters,perfusate biomarkers and baseline characteristics of 113 DD kidney transplantations from January 1,2019 to August 31,2019 in the First Affiliated Hospital of Xi’an Jiaotong University were retrospectively analyzed using univariate and multivariate logistic regression analysis.Results:In this study,the DGF incidence was 17.7%(20/113);The multivariate logistic regression results showed that terminal resistance(OR:1.879,95%CI 1.145-3.56)and glutathione S-transferase(GST)(OR=1.62,95%CI 1.23-2.46)were risk factors for DGF;The Cox model analysis indicated that terminal resistance was an independent hazard factor for renal function recovery time(HR=0.823,95%CI 0.735-0.981).The model combining terminal resistance and GST(AUC=0.888,95%CI:0.842-0.933)significantly improved the DGF predictability compared with the use of terminal resistance(AUC=0.756,95%CI 0.693-0.818)or GST alone(AUC=0.729,95%CI 0.591-0.806).Conclusion:According to the factors analyzed in this study,the combination of HMP parameters and perfusate biomarkers displays a potent DGF predictive value. | Yuxi Qiao Chenguang Ding Yang Li Xiaohui Tian Puxun Tian Xiaoming Ding Heli Xiang Jin Zheng Wujun Xue | 2022 | Chinese Medical Journal2022，，2： | 1 |
| 10 | Blockchain-based collaborative edge caching scheme for trustworthy content sharing显示文摘Moving data from cloud to the edge network can effectively reduce traffic burden on the core network,and edge collaboration can further improve the edge caching capacity and the quality of service(QoS).However,it is difficult for various edge caching devices to cooperate due to the lack of trust and the existence of malicious nodes.In this paper,blockchain which has the distributed and immutable characteristics is utilized to build a trustworthy collaborative edge caching scheme to make full use of the storage resources of various edge devices.The collaboration process is described in this paper,and a proof of credit(PoC)protocol is proposed,in which credit and tokens are used to encourage nodes to cache and transmit more content in honest behavior.Untrusted nodes will pay for their malicious actions such as tampering or deleting cached data.Since each node chooses strategy independently to maximize its benefits in an environment of mutual influence,a non-cooperative game model is designed to study the caching behavior among edge nodes.The existence of Nash equilibrium(NE)is proved in this game,so the edge server(ES)can choose the optimal caching strategy for all collaborative devices,including itself,to obtain the maximum rewards.Simulation results show that the system can save mining overhead as well as organize a trusted collaborative edge caching effectively. | Zhou Yutong Li Xi Ji Hong Zhang Heli | 2021 | The Journal of China Universities of Posts and Telecommunications2021，28，2： | 1 |
| 11 | Too Little or Too Much? Untangling the Relationship between Corporate Philanthropy and Firm Financial Performance显示文摘 | Heli Wang Jaepil Choi and Jiatao Li | 2008 | Organization Science2008，19，1： | 1 |
| 12 | Too Little or Too Much? Untangling the Relationship Between Corporate Philanthropy and Firm Financial Performance 显示文摘 | Heli Wang Jaepil Choi Jiatao Li | 2008 | Organization Science2008，19，1： | 1 |
| 13 | Oxidative Desulfurization over Molybdenum-containing MCM-41显示文摘包含铝的 MCM-41 催化剂的二个系列作为 oxidant.The 用 t-butylhydroperoxide ( TBHP )为 dibenzothiophene ( DBT )的氧化 desulfurization 作好准备电子性质,毛孔尺寸和催化剂的吸水的性质被 XRD 学习,赌注,并且红外 spectrometry.The Mo-Al2O3 催化剂和TiMCM-3%也为 comparison.The 被学习有在框架的 MoO3 的 MCM-41 沸石的二个系列或在低 MoO3 conten | Xu Li Zhang Wenhao Fan Heli Xie Chaogang Wang Danhong Peng Zhien Wang Xieqing | 2009 | China Petroleum Processing & Petrochemical Technology2009，11，3： | 1 |
| 14 | Resource allocation and hybrid prediction scheme for low-latency visual feedbacks to support tactile Internet multimodal perceptions显示文摘Predicting user states in future and rendering visual feedbacks accordingly can effectively reduce the visual experienced delay in the tactile Internet(TI). However, most works omit the fact that different parts in an image may have distinct prediction requirements, based on which different prediction models can be used in the predicting process, and then it can further improve predicting quality especially under resources-limited environment. In this paper, a hybrid prediction scheme is proposed for the visual feedbacks in a typical TI scenario with mixed visuo-haptic interactions, in which haptic traffic needs sufficient wireless resources to meet its stringent communication requirement, leaving less radio resources for the visual feedback. First, the minimum required number of radio resources for haptic traffic is derived based on the haptic communication requirements, and wireless resources are allocated to the haptic and visual traffics afterwards. Then, a grouping strategy is designed based on the deep neural network(DNN) to allocate different parts from an image feedback into two groups to use different prediction models, which jointly considers the prediction deviation thresholds, latency and reliability requirements, and the bit sizes of different image parts. Simulations show that, the hybrid prediction scheme can further reduce the visual experienced delay under haptic traffic requirements compared with existing strategies. | Kang Mancong Li Xi Ji Hong Zhang Heli | 2021 | The Journal of China Universities of Posts and Telecommunications2021，28，4： | 0 |
| 15 | QoE-based video segments caching strategy in urban public transportation system显示文摘With the rapid development of vehicle-based applications, entertainment videos have gained popularity for passengers on public vehicles. Therefore, how to provide high quality video service for passengers in typical public transportation scenarios is an essential problem. This paper proposes a quality of experience(QoE)-based video segments caching(QoE-VSC) strategy to guarantee the smooth watching experience of passengers. Consequently, this paper considers a jointly caching scenario where the bus provides the beginning segments of a video, and the road side unit(RSU) offers the remaining for passengers. To evaluate the effectiveness, QoE hit ratio is defined to represent the probability that the bus and RSUs jointly provide passengers with desirable video segments successfully. Furthermore, since passenger volume change will lead to different video preferences, a deep reinforcement learning(DRL) network is trained to generate the segment replacing policy on the video segments cached by the bus server. And the training target of DRL is to maximize the QoE hit ratio, thus enabling more passengers to get the required video. The simulation results prove that the proposed method has a better performance than baseline methods in terms of QoE hit ratio and cache costs. | Wang Hang Li Xi Ji Hong Zhang Heli | 2021 | The Journal of China Universities of Posts and Telecommunications2021，28，4： | 0 |
| 16 | Resource allocation scheme based on game theory in heterogeneous networks显示文摘As an effective solution for indoor coverage and service offloading from the conventional cellular networks, femtocells have attracted a lot of attention in recent years. This study investigates the resource block(RB) and power allocation in heterogeneous networks(Het Nets). Specifically, the concern here is to maximize the signal to interference-plus-noise ratio(SINR) of macrocell and energy efficiency of femtocell while providing the finite interference. In this paper, the system model is divided to two layers, in which the macro base station and clusters constitute the first layer network; femtocells in cluster make up the second layer network. Because of the different model structures, different game theories are used in different layers. Stackelberg game is used in the first layer, and non-cooperation game is used in the second layer. Meanwhile RB and power levels stand for the actions that are associated with each player in the game. The problem of resource allocation is formulated as a mixed integer programming problem. In order to minimize the complexity of the proposed algorithm, the resource allocation task is decomposed into two sub problems: a RB allocation and a power allocation. The result is compared with the traditional methods, the analysis illustrates the proposed algorithm has a better performance regarding SINR and energy efficiency of the heterogeneous networks. | Wu Yalong Li Xi Zhang Heli Wang Ke | 2016 | The Journal of China Universities of Posts and Telecommunications2016，23，3： | 0 |
| 17 | Applicability of differential fluorescein diacetate and propidium iodide fluorescence staining for monitoring algal growth and viability显示文摘Microalgae can be cultivated for producing high-valued products through the production of enzymes to offset the cost of CO_(2) sequestration,providing financial incentives.The viability of algae in the photobioreactor needs to be monitored to ensure biologically active live cells.In this study,we explored a simple fluorometry method for differentiation of live and dead algal cells in photobioreactors by fluorescein diacetate(FDA)and propidium iodide(PI)fluorescence staining.FDA stains fluorescent green to the living cells while PI stains the dead cells,allowing the discrimination of live and dead cells.The method was evaluated using two green algae and two strains of cyanobacteria grown in shake flasks and a continuously stirred photobioreactor.The method was found applicable for Chlorella pyrenoidosa and Synechococcus 7002 but was not applicable for the cultures of Scenedesmus dimorphus and Synechococcus elongatus 7942.We conclude that FDA is a good stain for monitoring live algal cells in photobioreactors but its applicability to individual species of algae must be evaluated. | Swati Yewalkar Tong Wu David Kuan Heli Wang Di Li Andy Johnson Dusko Posarac Sheldon Duff Xiaotao T.Bi | 2019 | Waste Disposal and Sustainable Energy2019，1，3： | 0 |
| 18 | Dynamic hierarchical collaborative caching scheme in ultra-dense networks显示文摘Pushing popular contents to the edge of the network can meet the growing demand for data traffic, reduce latency and relieve the pressure of the backhaul. However, considering the limited storage space of the base stations, it is impossible to cache all the contents, especially in ultra-dense network(UDN). Furthermore, the uneven distribution of mobile users results in load imbalance among small base stations(SBSs) in both time and space, which also affects the caching strategy. To overcome these shortcoming, the impact of the changing load imbalance in UDN was investigated, and then a dynamic hierarchical collaborative caching(DHCC) scheme was proposed to optimize latency and caching hit rate. The storage of the SBS is logically divided into the independent caching layer and the collaborative caching layer. The independent caching layer caches the most popular contents for local users’ interest, and the collaborative caching layer caches contents as much as possible for the benefit of content diversity in the region. Different SBSs have respective storage space layer division ratios, according to their real-time traffic load. For SBSs with heavy load, the independent caching layers are allocated with more space. Otherwise, the collaborative caching layers could store more contents with larger space. The simulation results show that, DHCC improved both transmission latency and hit rate compared with existing caching schemes. | Chen Jianing Li Xi Ji Hong Zhang Heli | 2021 | The Journal of China Universities of Posts and Telecommunications2021，28，1： | 0 |
| 19 | Distributed cooperative deployment strategy in multi-UAVs assisted heterogeneous networks显示文摘Unmanned aerial vehicle base stations(UAV-BSs)can provide a fast network deployment scheme for heterogeneous networks.However,unmanned aerial vehicle(UAV)has limited capability and cannot assist the base station(BS)well.The ability of a UAV to assist the BSs is limited,and the cluster deployment relies on the leading UAV.The dispersive deployment of multiple UAVs(multi-UAVs)need a macro base station(MBS)to determine their positions to prevent collisions or interference.Therefore,a distributed cooperative deployment scheme is proposed for UAVs to solve this problem.The scheme can increase the ability of UAVs to assist users and reduce the pressure on BSs to deploy UAVs.Firstly,the randomly distributed users are pre-clustered.Then the placement problem was modeled as a circle expansion problem and a pre-clustering radius expansion algorithm was proposed.Under the constraint of users'data rates,it provides services for more users.Finally,the proposed algorithm was compared with the density-aware placement algorithm.The simulation results show that the proposed algorithm can provide services for more users and improve the coverage rate of users while ensuring the data rates. | Zhang Yi Zhang Heli Ji Hong Li Xi | 2021 | The Journal of China Universities of Posts and Telecommunications2021，28，3： | 0 |
| 20 | Genetic Advances in Genome and Phenotypic Characters of Domestic Dog显示文摘Dogs represent such a rich potential resource to further understand diseases and genetic traits.Comparing the genomes of three species of canine,human,and rat in terms of genome analysis,it is found that dogs are highly conservative with humans and rats.The special population structure of dogs makes it a good model for studying the diversity of morphology and behavior,the genetic basis of mammalian evolution,and dis-eases.This article gives a brief review of recent advances in domestic dog origin and evolution,genomic structure,genetic variation in dog pheno-typic characteristics,and gene mapping.These research results are expected to provide a better theoretical basis for canine genetic breeding re-search and provide new ideas and methods for the prevention,diagnosis and treatment of human diseases. | Li Jing Wan Jiusheng Chen Chao Deng Weidong Yue Rui Xiong Heli Li Liguang | 2020 | Animal Husbandry and Feed Science2020，12，2： | 0 |
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