检索结果-南通市图书馆

Ideal bi‑Based Hybrid Anode Material for Ultrafast Charging of Sodium‑Ion Batteries at Extremely Low Temperatures

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第3期17卷 152-167页

作者： jie Bai Jian Hui Jia Yu Wang Chun Cheng Yang Qing Jiang Key Laboratory of Automobile Materials(Jilin University) Ministry of EducationSchool of Materials Science and EngineeringJilin UniversityChangchun 130022People’s Republic of China

Sodium-ion batteries have emerged as competitive substitutes for low-temperature applications due to severe capacity loss and safety concerns of lithium-ion batteries at−20°C or ***,the key capability of ultrafast charging at ultralow temperature for SIBs is rarely ***,a hybrid of bi nanoparticles embedded in carbon nanorods is demonstrated as an ideal material to address this issue,which is synthesized via a high temperature shock *** a hybrid shows an unprecedented rate performance(237.9 mAh g^(−1)at 2 A g^(−1))at−60℃,outperforming all reported SIB anode *** with a Na_(3)V_(2)(PO_(4))_(3)cathode,the energy density of the full cell can reach to 181.9 Wh kg^(−1)at−40°*** on this work,a novel strategy of high-rate activation is proposed to enhance performances of bi-based materials in cryogenic conditions by creating new active sites for interfacial reaction under large current.

关键词： bi nanoparticles High temperature shock High-rate activation Ultrafast charging Low-temperature sodium-ion batteries

The effect of the endosymbiont Wolbachia on the behavior of insect hosts

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Insect Science 2020年第5期27卷 846-858页

作者： jie bi Yu-Feng Wang School of Life Sciences Hubei Key Laboratory of Genetic Regulation and Integrative BiologyCentral China Normal UniversityWuhanChina

As one of the most successful intracellular symbiotic bacteria,Wolbachia can infect many arthropods and *** infection usually affects the reproduction of their hosts to promote their own proliferation and ***,most of the studies focus on the mechanisms of Wolbachia interactions with host ***,in addition to distribution in the reproductive tissues,Wolbachia also infect various somatic tissues of their hosts,including the *** raises the potential that Wolbachia may influence some somatic processes,such as behaviors in their ***,information about the effects of Wolbachia infection on host behavior is still very *** present review presents the current literature on different aspects of the influence of Wolbachia on various behaviors,including sleep,learning and memory,mating,feeding and aggression in their insect *** then highlight ongoing scientific efforts in the field that need addressing to advance this field,which can have significant implications for further developing Wolbachia as environmentally friendly biocontrol agents to control insect-borne diseases and agricultural pests.

关键词： aggression insect hosts learning and memory capacity mating sleep Wolbachia

Applying Deep Learning to Individual and Community Health Monitoring Data:A Survey

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Automation and computing 2018年第6期15卷 643-655页

作者： Zhen-jie Yao jie bi Yi-Xin Chen Beijing Advanced Innovation Center for Future Internet Technology Beijing University of Technology Department of Computer Science and Engineering Washington University in St.Louis

In the recent years, deep learning models have addressed many problems in various fields. Meanwhile, technology development has spawned the big data in healthcare rapidly. Nowadays, application of deep learning to solve the problems in healthcare is a hot research direction. This paper introduces the application of deep learning in healthcare extensively. We focus on 7 application areas of deep learning, which are electronic health records （EHR）, electrocardiography （ECG）, electroencephalogram （EEG）, community healthcare, data from wearable devices, drug analysis and genomics analysis. The scope of this paper does not cover medical image processing since other researchers have already substantially reviewed it. In addition, we analyze the merits and drawbacks of the existing works, analyze the existing challenges, and discuss future trends.

关键词： Deep learning healthcare electronic health records (EHR) neural networks survey.

Investigating the disk-corona relation in a blue AGN sample

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2009年第9期9卷 966-978页

作者： jie-Ying Liu bi-Fang Liu National Astronomical Observatories / Yunnan Observatory Chinese Academy of SciencesKunming 650011 China Graduate University of Chinese Academy of Sciences Beijing 100049 China

We compile a blue AGN sample from SDSS and investigate how the ratio of hard X-ray to bolometric luminosity depends on the Eddington ratio and black hole mass. Our sample comprises 240 radio-quiet Seyfert 1 galaxies and QSOs. We find that the fraction of hard X-ray luminosity （log（L2-10keV/L bol）） decreases with an increase of the Eddington ratio. We also find that the fraction of hard X-ray luminosity is independent of the black hole mass for radio-quiet AGNs. The relation of log（L2-10 keV/Lbol） decreasing with increasing Eddington ratio indicates that X-ray bolometric correction is not a constant, from a larger sample supporting the results of Vasudevan ＆ Fabian. We interpret our results by the disk corona evaporation/condensation model. In the frame work of this model, Compton cooling becomes efficient in cooling the corona at high accretion rates （in units of Eddington rate）, leading to condensation of coronal gas to the disk. Consequently, the relative strength of the corona to the disk becomes weaker at higher Eddington ratios. Therefore, the fraction of hard X-ray emission to disk emission and hence to the bolometric emission is smaller at higher Eddington ratios. The independence of the fraction of hard X-ray luminosity with respect to the mass of the black hole can also be explained by the disk corona model since the coronal structure and luminosity （in units of Eddington luminosity） are independent of the mass of black holes.

关键词： accretion: accretion disks -- galaxies: active -- X-rays: galaxies

Ancestral developmental potentials in early bony fish contributed to vertebrate water-to-land transition

在线全文

学校读者我要写书评

暂无评论

Zoological Research 2021年第2期42卷 135-137页

作者： Xu-Peng bi Guo-jie Zhang BGI-Shenzhen ShenzhenGuangdong 518083China Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunmingYunnan 650223China State Key Laboratory of Genetic Resources and Evolution Kunming Institute of ZoologyChinese Academy of SciencesKunmingYunnan 650223China Villum Center for biodiversity Genomics Section for Ecology and EvolutionDepartment of BiologyUniversity of CopenhagenCopenhagen 2100Denmark

The water-to-land transition was a major step in vertebrate evolution and eventually gave rise to the tetrapods, including amphibians, reptiles, birds, and mammals. The first land invasion of our fish ancestors is con... 详细信息

关键词： invasion al. transition

A Real-time Look-ahead Trajectory Planning Methodology for Multi Small Line Segments Path

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Mechanical Engineering 2023年第3期36卷 76-88页

作者： Sai Zhang Xinjun Liu bingkai Yan jie bi Xiangdong Han Department of Mechanical Engineering Tsinghua UniversityBeijing 100084China Robotphoenix Automation Technology Co. Ltd.Jinan 250100China

When a robot is required to machine a complex curved workpiece with high precision and speed,the tool path is typically dispersed into a series of points and transmitted to the *** conventional trajectory planning method requires frequent starts and stops at each dispersed point to complete the *** method not only reduces precision but also causes damage to the motors and robot.A real-time look-ahead algorithm is proposed in this paper to improve precision and minimize *** proposed algorithm includes a path-smoothing algorithm,a trajectory planning method,and a bidirectional scanning *** path-smoothing method inserts a quintic Bezier curve between small adjacent line segments to achieve G^(2)continuity at the *** trajectory planning method utilizes a quartic polynomial and a double-quartic polynomial that can achieve a constant velocity at the velocity *** bidirectional scanning module calculates the velocity at each trajectory planning segment point,simplifying calculation complexity and can be run in real *** feasibility of the proposed algorithm is verified through simulations and experiments,which can be run in real *** addition,high machining precision can be achieved by adjusting the relevant parameters.

关键词： Look-ahead bidirectional scanning Transition scheme Bezier curve G^(2)continuity

Anaerobic ammonium oxidation for advanced municipal wastewater treatment: is it feasible?

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Sciences 2005年第6期17卷 1022-1024页

作者： LI jie XIONG bi-yong ZHANG Shu-de YANG Hong ZHANG jie School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 China Key Lab of Water Quality Science and Water Environment Recovery Engineering Beijing University of Technology Beijing 100022 China

Anaerobic ammonium oxidation（ANAMMOX） is a recently developed process to treat ammonia-rich wastewater. There were numerous articles about the new technology with focus on the ammonium-rich wastewater treatment, but few on advanced municipal wastewater treatment. The paper studied the anaerobic ammonium oxidation （ANAMMOX） process with a down flow anoxic biofilter for nitrogen removal from secondary clarifier effluent of municipal wastewater with low COD/N ratio. The results showed that ANAMMOX process is applicable to advanced wastewater treatment with normal temperature as well as ammonia-rich high temperature wastewater treatment. The results indicated that ammonia removal rate was improved by raising the nitrite concentration, and the reaction rate reached a climax at 118.4 mgN/L of the nitrite nitrogen concentration. If the concentration exceeds 118.4 mgN/L, the ANAMMOX process was significantly inhibited although the ANAMMOX bacteria still showed a relatively high reactivity. The data also indicated that the ratio of NO2^- -N：NH4 ＊ -N = 1.3：1 in the influent was appropriate for excellent nitrogen removal. The pH increased gradually along the ANAMMOX biofilter reactor. When the ANAMMOX reaction was ended, the pH was tend to calm. The data suggested that the pH could be used as an indicator to describe the course of ANAMMOX reaction.

关键词： ANAMMOX anoxic biofilter advanced treatment nitrogen removal nitrite

Angular feature of conical emission in an isotropic amorphous medium pumped by femtosecond pulses

在线全文

学校读者我要写书评

暂无评论

Frontiers of Optoelectronics 2011年第4期4卷 407-410页

作者： jie bi School of Mathematics and Physics China University of Geosciences Wuhan National Laboratory for Optoelectronics School of Optoelectronic Science and EngineeringHuazhong University of Science and Technology

Broadband parametric upconverted conical emission(CE) has been investigated in an isotropic amorphous medium pumped by femtosecond laser pulses,which covers a broad range from 470 to 630 nm. Three theoretical models were analyzed to interpret the angular beam of CE. The CE spectra and their angular positions have been experimentally measured, which can be explained well by nonlinear X-wave model and Cerenkov type phase matching model rather than four-wave mixing(FWM) model.

关键词： conical emission (CE) femtosecond laser pulses four-wave mixing (FWM) Cerenkov type process X-wave model

In situ construction of Ni-based N doped porous carbon induced by sulfurization or phosphorization for synergistically enhanced photo/electrocatalytic hydrogen evolution

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2024年第12期179卷 66-78页

作者： Desheng Xu Jun Ke Hengyu Liu Yafan bi jie Liu School of Chemistry and Environmental Engineering Wuhan Institute of TechnologyWuhan 430205China Department of Environmental Science&Engineering North China Electric Power UniversityBaoding 071003China

Herein,two novel 3D porous Ni-based N doped carbon heterojunctions(NiS_(2)@NC or Ni_(2)P@NC)were suc-cessfully prepared through in situ carbonization and sulfurization or phosphorization by using flower-like Ni-based zeolite imidazolium framework as a *** and photoelectrochemical prop-erties were investigated to explore photoinduced charge separation and transfer in the ***,the photo/electrocatalytic hydrogen evolution performances were evaluated *** contrast to the controlled Ni-ZIF and Ni@NC composites,the expected flower-like NiS_(2)@NC compounds show significantly enhanced photo/electrocatalytic hydrogen evolution performances,which is 13.8 times that of Ni-ZIF and 1.8 times that of Ni@***,a phosphorus-decorated composite(Ni_(2)P@NC)was synthesized for better comparison,which also displays apparently improved photo/electrocatalytic hydrogen evolution *** findings present that the synergistic effect of S doping and semicon-ducting NiS_(2) formation take responsibility for the enhancement of H_(2) generation over the NiS_(2)@NC *** work can provide a new strategy to construct efficient ZIFs-based photo/electrocatalysts with high performance of H_(2) production.

关键词： Solar utilization Zeolite imidazolium framework Carbon Doping Heterojunction Hydrogen evolution