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13篇 您的检索式:作者名="Tenglong Zhang"
    题名 作者 年代 出处 被引量
1D-A-π-A organic sensitizers containing a benzothiazole moiety as an additional acceptor for use in solar cells显示文摘Three novel triphenylamine-based D-A-π-A-featured dyes (Z1-Z3) have been designed, synthesized and characterized for use in dye-sensitized solar cells. Benzothiazole was incorporated as an additional acceptor, which greatly enhanced the molar extinction coefficient of the dyes. Various conjugated linkers, such as benzene, furan and thiophene, were also introduced to configure the novel D-A-π-A framework in order to prolong electron flow and active transportation. Among all dyes, Z2 containing a thiophene linker exhibited the maximum overall conversion efficiency (η) of 4.16% (Jsc = 9.27 mA cm-2 , Voc = 642 mV, FF = 0.70) under standard global AM 1.5 G solar condition.ZENG Juan ZHANG TengLong ZANG XuFeng KUANG DaiBin MEIER Herbert CAO DeRong 2013Science China Chemistry2013,56,4:2
2Study on the Control Strategy of Free Piston Expander-Linear Generator Used for Organic Rankine Cycle Waste Heat Recovery显示文摘This study presents a free piston expander-linear generator (FPE-LG) for engine waste heat recovery.The control strategies based on displacement (control strategy A) and valve timings (control strategy B) are proposed.The operation and output characteristics with different control strategies are conducted.The results show that control strategy has significant effect on the FPE-LG performance.When FPE-LG operates with control strategy A,the operation frequency is determined by the intake pressure,advanced exhaust duration,fixed position point and external load resistance,whereas it is only related with the intake/exhaust time and advanced exhaust duration (ta) for control strategy B.The external load resistance has slight influence on the stroke length for these two control strategies.For control strategy A,when advanced exhaust duration is more than 40 ms,the stroke length rises with the intake pressure,whereas it first rises and then reduces when advanced exhaust duration is less than 40 ms.There exist the optimal external load resistance and advanced exhaust duration to achieve the maximum power output with control strategy A,whereas the average power output reduces with the increasing advanced exhaust duration when using control strategy B.Stable operation and high power output can be obtained by using different control strategies and adjusting relevant operation parameters.HOU Xiaochen ZHANG Hongguang ZHAO Tenglong SHI Xin XU Yonghong LI Jian GE Zhong ZHANG Jun WU Yuting 2021Journal of Thermal Science2021,30,2:1
3COVID-19 Public Opinion and Emotion Monitoring System Based on Time Series Thermal New Word Mining显示文摘With the spread and development of new epidemics,it is of great reference value to identify the changing trends of epidemics in public emotions.We designed and implemented the COVID-19 public opinion monitoring system based on time series thermal new word mining.A new word structure discovery scheme based on the timing explosion of network topics and a Chinese sentiment analysis method for the COVID-19 public opinion environment are proposed.Establish a“Scrapy-Redis-Bloomfilter”distributed crawler framework to collect data.The system can judge the positive and negative emotions of the reviewer based on the comments,and can also reflect the depth of the seven emotions such as Hopeful,Happy,and Depressed.Finally,we improved the sentiment discriminant model of this system and compared the sentiment discriminant error of COVID-19 related comments with the Jiagu deep learning model.The results show that our model has better generalization ability and smaller discriminant error.We designed a large data visualization screen,which can clearly show the trend of public emotions,the proportion of various emotion categories,keywords,hot topics,etc.,and fully and intuitively reflect the development of public opinion.Yixian Zhang Jieren Cheng Yifan Yang Haocheng Li Xinyi Zheng Xi Chen Boyi Liu Tenglong Ren Naixue Xiong 2020Computers, Materials & Continua2020,,9:1
4Identification of cotton microRNAs and their targets显示文摘Baohong Zhang Qinglian Wang Kunbo Wang Xiaoping Pan Fang Liu Tenglong Guo George P. Cobb Todd A. Anderson 2007Gene2007,,1:1
5Effects of tur- bulence models on convection subcoolod boiling in vertical pipe 显示文摘ZHANG Rui CONG Tenglong TIAN Wcnxi 2015Annals of Nuclear Energy2015,80,:1
6Audio-Visual Underdetermined Blind Source Separation Algorithm Based on Gaussian Potential Function显示文摘Most existing algorithms for the underdetermined blind source separation(UBSS) problem are two-stage algorithm, i.e., mixing parameters estimation and sources estimation. In the mixing parameters estimation, the previously proposed traditional clustering algorithms are sensitive to the initializations of the mixing parameters. To reduce the sensitiveness to the initialization, we propose a new algorithm for the UBSS problem based on anechoic speech mixtures by employing the visual information, i.e., the interaural time difference(ITD) and the interaural level difference(ILD), as the initializations of the mixing parameters. In our algorithm, the video signals are utilized to estimate the distances between microphones and sources, and then the estimations of the ITD and ILD can be obtained. With the sparsity assumption in the time-frequency domain, the Gaussian potential function algorithm is utilized to estimate the mixing parameters by using the ITDs and ILDs as the initializations of the mixing parameters. And the time-frequency masking is used to recover the sources by evaluating the various ITDs and ILDs. Experimental results demonstrate the competitive performance of the proposed algorithm compared with the baseline algorithms.ZHANG Ye CAO Kang WU Kangrui YU Tenglong ZHOU Nanrun 2014China Communications2014,11,6:1
7Development of a refined helical fuel mixing model and application to a helical fuel rod bundle显示文摘Fuel assemblies have a decisive impact on the performance and safety of nuclear reactors.Helical fuel has huge potential for application in small module reactors(SMRs)due to its advantages in volume power density and safety.Typical helical fuel elements are usually trilobal or cruciform in cross-section.The fuel rods are helically twisted in the axial direction,eliminating the need for spacer grids as the fuel rods are self-supporting.In this paper,a refined subchannel division approach is proposed based on the crossflow mechanism of helical fuel assemblies.Then,a refined helical fuel mixing model framework,including the helical fuel distributed resistance method and directed crossflow method,is developed and implemented in a helical fuel rod bundle to investigate the mixing characteristics.Validation is provided by a 5×5 helical fuel bundle mixing experiment.The refined model predicts about 92.7%of the data with the±10%error range.Compared with existing helical fuel mixing models,the refined mixing model has higher axial accuracy and radial spatial resolution,and can accurately predict the twist angledependent crossflow rate and entry effect.Meanwhile,the refined helical fuel mixing model framework is universal and can be effectively used for the mixing prediction of arbitrary geometric helical fuel after the calibration of coefficients.FU JunSen XIAO Yao LI JunLong ZHANG Qi CONG TengLong GU HanYang 2023Science China(Technological Sciences)2023,66,2:1
8Inducing the SnO2-based electron transport layer into NiFe LDH/NF as efficient catalyst for OER and methanol oxidation reaction显示文摘In an electrocatalyst with a heterointerface structure,the different interfaces can efficiently adjust the catalyst’s conductivity and electron arrangement,thereby enhancing the activity of the electrocatalyst.Ultrathin and smaller Ni Fe LDH was successfully constructed on the surface of SnOnanosheet supported NF by layer by layer assembly,and exhibits lower overpotential of 234 mV at a current density of 10 m A cm,which only increases by 6.4%even at a high current density of 100 mA cm.The excellent OER activity of catalyst is attributed to the contribution of the semiconductor SnOelectron transport layer.Through experiments and characterization,3d structure SnOnanosheets control the growth of ultra-thin nickel-iron,the hierarchical interface between SnOand Ni Fe LDH can change the electron arrangement around the iron and nickel active centers at the interface,resulting the valence states of iron slightly increased and Nicontent increased.The result will promote the oxidation of water.Meanwhile,the SnOsemiconductor as electron transport layer is conducive to trapping electrons generated in oxidation reaction,promoting electrons transferring from the Ni Fe LDH active center to the Ni substrate more quickly,and enhance the activity of Ni Fe LDH.It also shows excellent activity in an electrolyte solution containing 0.5 M methanol and 1 M KOH,and only 1.396 V(vs.RHE)is required to drive a current density of 10 mA cm.Changwu Wan Jie Jin Xinyu Wei Shizhuo Chen Yi Zhang Tenglong Zhu Hongxia Qu 2022Journal of Materials Science & Technology2022,,29:1
9Gastric cancer with soft tissue metastasis of the abdominal wall:a case report显示文摘Abdominal wall metastasis of gastric cancer(GC)is a very rare occurrence in the clinic setting.We recently diagnosed and treated a patient with abdominal wall metastasis of GC and we hope to provide some helpful guidance on the clinical diagnosis and treatment of this disease.A 49-year-old male patient with GC was admitted to our hospital(Dalian Municipal Central Hospital,Dalian,China)complaining of left upper abdominal wall mass.Physical examination and regular laboratory blood tests showed no obvious abnormalities.Ultrasound and CT of the abdomen showed a subcutaneous solid mass in the abdominal wall.Radical gastrectomy was performed on February 27,2019,six months after it was first noticed by the patient.Pathological examination and immunohistochemistry showed GC with abdominal metastasis.Postoperative radiotherapy or chemotherapy was not pursued after the second operation and no recurrence or metastasis has been noted so far.GC with abdominal metastasis is very rare and can be easily missed or misdiagnosed.For metastasis to a single site in the abdominal wall,surgical resection,which is recommended,may improve patient outcomes.Tenglong Guo Huiliang Yang Jiaming Xue Wenbin Li Taotao Zhang Xiangwen Zhang Guo Zu 2020Oncology and Translational Medicine2020,6,4:0
10microRNA-32在多发性骨髓瘤中的表达及临床意义(英文)显示文摘Objective: This study was aimed to explore the expression of microRNA-32(miR-32) in multiple myeloma(MM), and study its association with β2-microglobulin and staging of MM by Durie-Salmon classification. Methods: The expression level of miR-32 in bone marrow mono-nuclear cells of MM were examined by real-time polymerase chain reaction(real-time PCR), and the correlations between the expression level of miR-32 and related clinic pathologic features β2-microglobulin, staging of MM by Durie-Salmon classification were further analyzed. Results: The expression of miR-32 in MM patients was obviously higher than that in normal control(P < 0.05). The expression of miR-32 in relapsed/ refractory MM patients was obviously higher than that in newly diagnosed MM patients. The expression of miR-32 in MM patients decreased after chemical therapy than that before treatment, especially in effective group(P < 0.05). There was no statistically significant change in ineffective/progress group after chemical therapy(P > 0.05).The expression of miR-32 was associated to staging of MM and β2-microglobulin level. Conclusion: Expression level of miR-32 in MM patients is significantly higher than that in normal bone marrow, these data indicated that miR-32 may play an important role in the development of MM. High-regulated expression of miR-32 was associated with β2-microglobulin and staging of MM by Durie-Salmon classification.Tenglong Zhang Weili Jia Li Sun Xiaoyan Wang Xiuhua Xing Shuai Gong Chunrui Yu 2014The Chinese-German Journal of Clinical Oncology2014,13,10:0
11Percolation-induced resistivity drop in lutetium dihydride with controllable electrical conductivity over six orders of magnitude显示文摘The recent report of near-ambient superconductivity in the nitrogen-doped lutetium hydride has attracted considerable attention.Subsequent follow-up studies confirmed the pressure-induced color changes in both N-free and N-doped LuH_(2) but failed to reproduce superconductivity. It remains a puzzle why the samples in the original report exhibited pronounced resistance anomaly reminiscent of the superconducting transition. Here, we show that percolation of metallic grains with high conductivity through the insulating surfaces in cold-pressed LuH_(2) samples can occasionally produce sharp resistance drops, which even display magnetic field and/or current dependences but stay far from zero resistance. The insulating surface of LuH2grain should be attributed to the modification of hydrogen stoichiometry or the contamination by oxygen/nitrogen, resulting in an increase of resistance by over six orders of magnitude. Such an effect is more significant than that discovered recently in LaH_(3±x), which may indicate that LuH_(2) can be a potential superionic conductor. Our results call for caution in asserting the resistivity drops as superconductivity and invalidate the background subtraction in analyzing the corresponding resistance data.Ningning Wang Jun Hou Ziyi Liu Tenglong Lu Pengfei Shan Congcong Chai Shifeng Jin Liang Ma Lifen Shi Xiao Wang Youwen Long Yue Liu Hua Zhang Xiaoli Dong Sheng Meng Miao Liu Jinguang Cheng 2023Science China(Physics,Mechanics & Astronomy)2023,66,9:0
12Study on the Performance of Organic Rankine Cycle-Heat Pump(ORC-HP) Combined System Powered by Diesel Engine Exhaust显示文摘This study presents an ORC-HP combined system driven by diesel engine exhaust. This paper focuses on the feasibility and performance of the combined system under heating mode to heat a coach. The performances of the combined system with different parameters, including condensation temperature and evaporation pressure in ORC system, gas cooler outlet pressure, gas cooler outlet temperature and evaporation temperature in HP system, have been analyzed. The results show that the combined system can fully meet the demand of heat production. The optimal flow division ratio(rp) of 0.32 is selected by analyzing the system performance. Low condensation temperature is beneficial to the combined system performance. There exists a suitable range of evaporation temperature, gas cooler outlet pressure and gas cooler outlet temperature to achieve excellent performance. The heating coefficient of performance(COP_h) shows a first increasing and then decreasing trend with gas cooler outlet pressure, namely there exists an optimal gas cooler outlet pressure that achieves the maximum COP_h. The maximum total efficiency, COP_h and heating capacity can reach up to 48.44%, 4.78 and 176.56 kW, respectively. These results show significant energy savings by applying the ORC-HP combined system.ZHAO Tenglong YU Fei ZHANG Hongguang WU Yuting WANG Yan 2019Journal of Thermal Science2019,28,5:0
13Injectable Fiber Electronics for Tumor Treatment显示文摘Electrochemical therapy emerged as a low-cost and efective method for tumor ablation.However,it has challenges such as the production of toxic byproducts and the use of rigid electrodes that damage soft tissues.Here,we report a new injectable and tissue-compatible fber therapeutic electronics for safe and efcient tumor treatment.The design of aligned carbon nanotube(CNT)fber as electrodes endowed the device with high softness and enabled mini-invasive implantation through injection.Under a mild voltage(1.2 V),the fber device released hydroxyl ions to alter the local chemical environment of the tissues without additional toxic products/gases,leading to immediate death of tumor cells.The fexible fber device could form stable interface with tissues and showed good biocompatibility after implantation for 30 days.The in vitro experimental results showed the fber device could efciently kill 90.9%of QGY-7703 cancer cells after a single treatment in a few minutes.The tumor-bearing animal models proved that the fber therapeutic device could efectively inhibit the growth of tumor tissues,indicating it is a safe,efective,controllable and low-cost method for tumor therapy.Yang Zhao Chuanrui Chen Yangyang Qiu Tenglong Mei Lei Ye Huan Feng Ye Zhang Liyuan Wang Yue Guo Xuemei Sun Jiaxue Wu Huisheng Peng 2022Advanced Fiber Materials2022,4,2:0
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