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Video Conference System in Mixed Reality Using a Hololens

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Computer Modeling in Engineering & Sciences 2023年第1期134卷 383-403页

作者： Baolin Sun Xuesong Gao Weiqiang Chen Qihao Sun Xiaoxiao Cui HaoGuo Cishahayo Remesha kevin Shuaishuai Liu Zhi Liu School of Information Science and Engineering Shandong UniversityQingdao266000China State Key Laboratory of Digital Multi-Media Technology Hisense Co.Ltd.Qingdao266000China

The mixed reality conference system proposed in this paper is a robust,real-time video conference application software that makes up for the simple interaction and lack of immersion and realism of traditional video conference,which realizes the entire process of holographic video conference from client to cloud to the *** paper mainly focuses on designing and implementing a video conference system based on AI segmentation technology and mixed *** mixed reality conference system components are discussed,including data collection,data transmission,processing,and mixed reality *** data layer is mainly used for data collection,integration,and video and audio *** network layer uses Web-RTC to realize peer-to-peer data *** data processing layer is the core part of the system,mainly for human video matting and human-computer interaction,which is the key to realizing mixed reality conferences and improving the interactive *** presentation layer explicitly includes the login interface of the mixed reality conference system,the presentation of real-time matting of human subjects,and the presentation *** the mixed reality conference system,conference participants in different places can see each other in real-time in their mixed reality scene and share presentation content and 3D models based on mixed reality technology to have a more interactive and immersive experience.

关键词： Mixed reality AI segmentation hologram video conference Web-RTC

The use of blue-light cystoscopy in the detection and surveillance of nonmuscle invasive bladder cancer

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E-pO^(2–) diagram for rare earth elements in molten salt

Current Urology 2022年第3期16卷 121-126页

作者： Ellen M.Cahill kevin Chua Sai Krishnaraya Doppalapudi Saum Ghodoussipour Rutgers Robert Wood Johnson Medical School New BrunswickNJUSA Section of Urologic Oncology Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical SchoolNew BrunswickNJ 08903-2681USA

Nonmuscle invasive bladder cancer is associated with a high risk of recurrence as well as progression to muscle-invasive ***,adequate visualization and identification of malignant lesions as well as complete resection are *** white-light cystoscopy is limited in its ability to detect bladder cancer,specifically carcinoma in ***-light cystoscopy makes use of the intravesical instillation of a heme precursor to differentiate areas of malignancy from normal tissue.A narrative review of the literature on the use of blue-light cystoscopy in bladder cancer was ***-light cystoscopy has been shown in several randomized clinical trials to increase detection of Ta,T1,and carcinoma in situ,as well as reduce risk of recurrence at 12 months as compared with traditional white-light *** into the effects of blue-light cystoscopy on risk of disease progression has produced mixed results,in part due to changing definitions of ***,more recent research suggests a correlation with decreased risk of *** the use of blue-light was initially limited to rigid cystoscopy in the operating room,results from a recent randomized clinical trial showing enhanced detection of recurrent disease using blue-light in-office surveillance flexible cystoscopy have led to expanded Food and Drug Administration ***,blue-light cystoscopy offers promise as an enhancement to white-light cystoscopy for the detection of nonmuscle invasive bladder cancer and may yield additional benefits in reducing disease recurrence and *** prospective research is needed to evaluate the true benefit of blue-light cystoscopy in terms of disease progression as well as the cost-effectiveness of this technique.

关键词： Nonmuscle invasive bladder cancer Blue-light cystoscopy White-light cystoscopy

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Journal of Rare Earths 2017年第2期35卷 187-192页

作者： Yixing(kevin) Shen Jinsuo Zhang Niuclear Engineering Program Department of Mechanical and Aerospace Engineering The Ohio State University US

Electro-reduction of spent nuclear oxide fuels in molten salt was the key step of pyroprocessing for oxide fuel treatment. In the present study, the E-pO^2- diagram for rare earth elements in molten Li Cl-KCl at 450 oC were developed based available experimental data. E-pO^2- diagrams could show the stability of each chemical compound in the salt, and therefore, the diagrams could be applied to predict experimental conditions for electro-reduction of spent nuclear fuel efficiently. Compared with the available E-pO^2-diagrams, the present study concerned the activity coefficient of the element studied in the molten salt in all reactions, which made the diagram be more reliable and accurate.

关键词： E-pO^2- Diagram molten salt pyroprocessing fuel cycle rare earths

Activating Connexin43 gap junctions primes adipose tissue for therapeutic intervention

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Acta Pharmaceutica Sinica B 2022年第7期12卷 3063-3072页

作者： Yi Zhu Na Li Mingyang Huang Xi Chen Yu AAn Jianping Li Shangang Zhao Jan-Bernd Funck Jianhong Cao Zhenyan He Qingzhang Zhu Zhuzhen Zhang Zhao VWang Lin Xu kevin W.Williams Chien Li kevin Grove Philipp E.Scherer Touchstone Diabetes Center Department of Internal Medicinethe University of Texas Southwestern Medical Center at DallasDallasTX 75390USA Division of Cardiology Department of Internal Medicinethe University of Texas Southwestern Medical Center at DallasDallasTX 75390USA Division of Hypothalamic Research Department of Internal Medicinethe University of Texas Southwestern Medical Center at DallasDallasTX 75390USA Quantitative Biomedical Research Center Department of Population and Data Sciencesthe University of Texas Southwestern Medical Center at DallasDallasTX 75390USA Department of Pediatrics the University of Texas Southwestern Medical Center at DallasDallasTX 75390USA Novo Nordisk Research Center SeattleWA 98109USA Children’s Nutrition Research Center Department of PediatricsBaylor College of MedicineHoustonTX 77030USA Department of Cell Biology the University of Texas Southwestern Medical Center at DallasDallasTX 75390USA

Adipose tissue is a promising target for treating obesity and metabolic ***,pharmacological agents usually fail to effectively engage adipocytes due to their extraordinarily large size and insufficient vascularization,especially in obese *** have previously shown that during cold exposure,connexin43(Cx43)gap junctions are induced and activated to connect neighboring adipocytes to share limited sympathetic neuronal input amongst multiple *** reason the same mechanism may be leveraged to improve the efficacy of various pharmacological agents that target adipose *** an adipose tissue-specific Cx43 overexpression mouse model,we demonstrate effectiveness in connecting adipocytes to augment metabolic efficacy of theβ_(3)-adrenergic receptor agonist Mirabegron and ***,combing those molecules with the Cx43 gap junction channel activator danegaptide shows a similar enhanced *** light of these findings,we propose a model in which connecting adipocytes via Cx43 gap junction channels primes adipose tissue to pharmacological agents designed to engage ***,Cx43 gap junction activators hold great potential for combination with additional agents targeting adipose tissue.

关键词： GJA1 Adipose tissue Gap junction Connexin43 FGF21 β3-Adrenergic receptor agonist Obesity Type 2 diabetes

Case study and design of steel set support for aged belt entry rehabilitation

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International Journal of Mining Science and Technology 2018年第1期28卷 101-106页

作者： kevin Jinrong Ma John Stankus Keystone Mining Services LLC

In order to access remote reserve areas, some *** mines have to maintain aged underground entries for a great ***, high humidity, warm temperature, and time dependent deterioration can cause progressive roof deterioration and unexpected roof falls, and pose a great challenge to ground control *** an active belt structure in place and limited space, re-bolting becomes very costly, less effective,and, sometimes, impractical and *** gain long-term entry stability and serviceability, operators typically rehabilitate the aged belt entries by installing standing steel set *** the last several years,Keystone Mining Services, LLC,(KMS) has assisted many coal mines with their belt entry rehabilitation projects, evaluated the ground condition of various aged belt entries, and designed different standing steel set support *** paper presents a case study of a large-scale roof fall that occurred at an aged belt entry in a mine located in an eastern coalfield, analyzes root causes of excessive deformation of square sets that were installed in an adjacent entry, evaluates the adequacy of an existing rehabilitation square set, and develops remedial recommendations for future rehabilitation *** on the case study, the paper outlines design guidelines for rehabilitation steel sets that include field evaluation, engineering considerations, design assumptions, steel structural analysis, and field installation quality control.

关键词： Coal mine Roof fall Belt entry Rehabilitation Steel set support

Synergetic Contributions from the Components of Flexible 3D Structured C/Ag/ZnO/CC Anode Materials for Lithium-Ion Batteries

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High Resolution Global Modeling of the Atmospheric Circulation

Energy & Environmental Materials 2023年第6期6卷 227-235页

作者： Huang Xiao Shuangpeng Li Jiaying Zhou Chenyu Zhao Yi Yuan Xiaohong Xia Yuwen Bao Manon Lourenço kevin Homewood Yun Gao Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and MinistrySchool of Materials Science&EngineeringHubei UniversityWuhan 430062China

Low electronic conductivity and large volume changes during the(de)lithiation process are the two main challenges for ZnO anode materials used for lithium-ion batteries(LIB).Here,a free-standing,flexible,and binder-free LIB electrode composed of ZnO nanorods and carbon cloth(CC)is *** is then decorated with Ag nanoparticles and finally coated by an amorphous carbon layer to form the hybrid electrode:(C@(Ag&ZnO)).The voids among the nanorods are sufficient to accommodate the volume expansion of the ZnO while the flexible CC,which acts as the current collector,relieves the volume change-induced *** Ag nanoparticles are effective in improving the *** composite electrode shows excellent LIB performance with a stable long cycling life over 500 cycles with a reversible capacity of 1093 mAh g^(-1)at a current density of 200 mA g^(-1).It also shows good rate performance with reversible capacity of 517 mAh g^(-1)under a high-current density of 5000 mA g^(-1).In situ Raman spectroscopy is conducted to investigate the contributions of the amorphous carbon layer to the capacity of the whole electrode and the synergy between the CC and ZnO nanorods.

关键词： binder-free in situ Raman spectroscopy lithium-ion batteries ZnO nanorods

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Advances in Atmospheric Sciences 2006年第6期23卷 842-856页

作者： kevin HAMILTON International Pacific Research Center University of Hawaii at Manoa HonoluluHawaii 96822USA

An informal review is presented of recent developments in numerical simulation of the global atmospheric circulation with very fine numerical resolution models, The focus is on results obtained recently with versions of the GFDL SKYHI model and the Atmospheric Model for the Earth Simulator （AFES） global atmospheric models. These models have been run with effective horizontal grid resolution of -10-40 km and fine vertical resolution. The results presented demonstrate the utility of such models for the study of a diverse range of phenomena, Specifically the models are shown to simulate the development of tropical cyclones with peak winds and minimum central pressures comparable to those of the most intense hurricanes actually observed, More fundamentally, the spectrum of energy content in the mesoscale in the flow can be reproduced by these models down to near the smallest explicitly-resolved horizontal scales, in the middle atmosphere it is shown that increasing horizontal resolution can lead to significantly improved overall simulation of the global-scale circulation, The application of the models to two specific problems requiring very fine resolution global will be discussed, The spatial and temporal variability of the vertical eddy flux of zonal momentum associated with gravity waves near the tropopause is evaluated in the very fine resolution AFES model, This is a subject of great importance for understanding and modelling the flow in the middle atmosphere, Then the simulation of the small scale variations of the semidiurnal surface pressure oscillation is analyzed, and the signature of significant topographic modulation of the semidiurnal atmospheric tide is identified.

关键词： general circulation model mesoscale simulation gravity waves atmospheric tides

JUMPING INSTABILITIES IN THE POST-BUCKLING OF A BEAM ON A PARTIAL NONLINEAR FOUNDATION

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Acta Mechanica Solida Sinica 2013年第5期26卷 500-513页

作者： Yin Zhang kevin D Murphy State Key Laboratory of Nonlinear Mechanics (LNM) Institute of Mechanics Chinese Academy of Sciences Department of Mechanical Engineering University of Connecticut

Mode jumping is an instability phenomenon in the post-buckling region, which causes a sudden change in the equilibrium configuration and is thus harmful to structure. The con- figuration of a partial elastic foundation can directly induce mode coupling from the buckling stage and through the whole post-buckling region. The mode coupling effect due to the configuration of partial foundation on mode jumping is investigated and demonstrated to be an important factor of determining mode jumping. By properly choosing the partial elastic foundation configuration, mode jumping can be avoided.

关键词： instability mode jumping tertiary jumping buckling beam elastic foundation

The Transference Number

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Energy & Environmental Materials 2022年第2期5卷 366-369页

作者： kevin W.Gao Chao Fang David M.Halat Aashutosh Mistry John Newman Nitash P.Balsara Materials Sciences Division Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA Department of Chemical and Biomolecular Engineering University of CaliforniaBerkeleyCA 94720USA Joint Center for Energy Storage Research Argonne National LaboratoryLemontIL 60439USA Chemical Sciences and Engineering Division Argonne National LaboratoryLemontIL 60439USA

The performance of rechargeable batteries and other electrochemical systems depends on the rate at which the working ion(often a cation)is transported from one electrode to the *** cation transference number is an important transport parameter that affects this *** purpose of this perspective is to distinguish between approximate and rigorous methods used in the literature to measure the transference *** emphasize the fact that this parameter is dependent on the reference frame used in the analysis;care must be taken when comparing values obtained from different sources to account for differences in reference *** present data obtained from a well-characterized *** compare rigorously determined transference numbers in two reference frames with values obtained by an approximate *** conclude with a qualitative discussion of the relationship between the transference number and salt concentration gradients that are obtained when current is drawn through a battery。

关键词： battery electrolytes concentrated solution theory ion transport reference frames transference number