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Prospects for detecting ultra-high-energy particles with FAST

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research in Astronomy and Astrophysics 2019年第2期19卷 25-38页

作者： Clancy W.James justin D.Bray ronald D.Ekers International Centre for radio Astronomy research Curtin University School of Physics & Astronomy University of Manchester CSIrO Astronomy & Space Science

The origin of the highest-energy particles in nature, ultra-high-energy(UHE) cosmic rays, is still unknown. In order to resolve this mystery, very large detectors are required to probe the low flux of these particles — or to detect the as-yet unobserved flux of UHE neutrinos predicted from their interactions. The‘lunar Askaryan technique' is a method to do both. When energetic particles interact in a dense medium,the Askaryan effect produces intense coherent pulses of radiation in the MHz–GHz range. By using radio telescopes to observe the Moon and look for nanosecond pulses, the entire visible lunar surface(20 million km^2) can be used as a UHE particle detector. A large effective area over a broad bandwidth is the primary telescope requirement for lunar observations, which makes large single-aperture instruments such as the Five-hundred-meter Aperture Spherical radio Telescope(FAST) well-suited to the technique. In this contribution, we describe the lunar Askaryan technique and its unique observational requirements. Estimates of the sensitivity of FAST to both the UHE cosmic ray and neutrino flux are given, and we describe the methods by which lunar observations with FAST, particularly if equipped with a broadband phased-array feed, could detect the flux of UHE cosmic rays.

关键词： cosmic rays neutrinos techniques:miscellaneous Moon

Improving signature quality for network application identification

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Digital Communications and Networks 2019年第3期5卷 139-146页

作者： justin Tharp Sang C·Suh Hyeonkoo Cho Jinoh Kim Department of Computer Science Texas A&M University-Commerce P.O. Box 3011 Commerce TX 75429 USA Sysmate Inc. 41 Yuseong-daero 1184 beon-gil Yuseong-gu Daejeon 34109 North Korea

Network application identification is one of the core elements in network operations and management to provide enhanced network service and security. For accurate identification, an approach using common patterns called "signatures" is widely used to compensate the limitations of the traditional transport-layer port-based classification. However, our simulation results indicate that using the signatures generated from a set of well known algorithms may lead to very poor identification performance, with less than 60% of true positives even in an optimal case. To improve the quality of signatures, we present a technique in this paper, which consists of two steps:(i) pairwise merging to consider every possible combination of the initially collected signatures to reduce their specificity that causes the signatures to be less common;and (ii) signature reduction to identify effective signatures with greater importance from a large set of signatures produced in the merging step, so as to manage the space/time complexity in the identification process for greater scalability. Our experimental results show that the proposed technique can dramatically improve the performance, even with a small number of signatures (e.g., 95% true positives rate with 30 signatures per application) which is more compact than the initial signature set.

关键词： Network application identification Application signatures Pairwise merging Signature reduction Explicit string patterns

Field ovipositional behavior and laboratory studies on development of Dacus punctatifrons （Diptera：Tephritidae） on tomato

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Insect Science 2005年第5期12卷 393-398页

作者： justin N.OKOLLE NELSON N.NTONIFOr Department of Life Sciences University of Buea Buea Cameroon

The tomato fruit fly Dacus punctatifrons is a pest of tomato, Lycopersicon esculentum Mill in Cameroon. Oviposition behavior, developmental durations for the life stages, pupal and adult weights as well as adult longevities were investigated on tomato. The peak period of oviposition was recorded between the hours of 10：30-11：30 and 14：30-5：30. The number of eggs per clutch varied from 3-12. Although the development period was similar for both sexes, the pupal weights, adult weights as well as adult longevities were significantly different.

关键词： Cameroon Dacus punctatifrons development tephritidae tomato oviposition

Hyperparameter Optimization Based Deep Belief Network for Clean Buses Using Solar Energy Model

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Intelligent Automation & Soft Computing 2023年第7期37卷 1091-1109页

作者： Shekaina justin Wafaa Saleh Tasneem Al Ghamdi J.Shermina College of Engineering Princess Nourah Bint Abdulrahman UniversityRiyadh 84428Kingdom of Saudi Arabia Transport Engineering School of Engineering and The Built Environment Edinburgh Napier UniversityEdinburgh EH105DUK Department of Computing Muscat CollegeUniversity of SterlingUK

renewable energy has become a solution to the world’s energy concerns in recent ***(PV)technology is the fastest technique to convert solar radiation into ***-powered buses,metros,and cars use PV *** technologies are always *** in the parameters that need to be analysed and examined include PV capabilities,vehicle power requirements,utility patterns,acceleration and deceleration rates,and storage module type and capacity,among *** is intermit-tent and *** forecasting and modelling of PV sys-tem output power are key to managing storage,delivery,and smart *** unparalleled data granularity,a data-driven system could better anticipate solar *** learning(DL)models have gained popularity due to their capacity to handle complex datasets and increase computing *** article introduces the Galactic Swarm Optimization with Deep Belief Network(GSODBN-PPGF)*** GSODBN-PPGF model predicts PV power *** GSODBN-PPGF model normalises data using data *** is used to forecast PV power *** GSO algorithm boosts the DBN model’s predicted ***-PPGF projected 0.002 after 40 h but observed *** GSODBN-PPGF model validation is compared to existing *** showed that the GSODBN-PPGF model outperformed recent *** shows that the proposed model is better at forecasting than other models and can be used to predict the PV power output for the next day.

关键词： Photovoltaic systems solar energy power generation prediction model deep learning

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Beneath the shadow

Beneath the shadow

Construction of a hierarchical multiscale conducting network for enhanced thermoelectric response in organic PEDOT:PSS based nanocomposites

作者： justin Gardiner.

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Journal of Materiomics 2021年第1期7卷 34-39页

作者： Yong Zhang Siqi Liu J.justin Koh Chaobin He Department of Materials Science and Engineering National University of Singapore9 Engineering Drive 1117575Singapore Institute of Materials research and Engineering A*STAR(Agency for ScienceTechnology and Research)117602Singapore

Thermoelectric technology,which is characterized by the interconversion between heat and electricity,is demonstrated as an efficient and environmentally friendly route for thermal energy harvesting and solid-state cooling *** pursuit for high-performance room temperature thermoelectric materials is of significant ***,we proposed a design strategy to dramatically improve the thermoelectric response by constructing a hierarchical multiscale conductor network(AgNWs/CNT)in polymer matrix(PEDOT:PSS).At the optimized composition,the highest Seebeck coefficient and electrical conductivity of base treated ternary PEDOT:PSS/AgNWs/CNT composite are optimized to be 58.6μV K^(-1)and~1950 S ***,the power factor is thus calculated to be on the order of 670μV m^(-1)K^(-2),which is among one of the highest values compared with previous *** underlying mechanism is illustrated based on detailed structure,morphology and electron transport *** work affords a novel strategy for the future development of high-performance room temperature nanocomposite thermoelectrics.

关键词： PEDOT:PSS Thermoelectrics Energy harvesting Hierarchical structure Seebeck coefficient

Multi-State-Space reasoning reinforcement Learning for Long-Horizon rFID-Based robotic Searching and Planning Tasks

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Journal of Communications and Information Networks 2022年第3期7卷 239-251页

作者： Zhitao Yu Jian Zhang Shiwen Mao Senthilkumar C G Periaswamy justin Patton Department of Electrical and Computer Engineering Auburn UniversityAuburnAL 36849-5201USA Department of Electrical and Computer Engineering Kennesaw State UniversityKennesawGA 30144USA rFID Lab at Auburn University AuburnAL 36849USA

In recent years,reinforcement learning(rL)has shown high potential for robotic ***,rL heavily relies on the reward function,and the agent merely follows the policy to maximize rewards but lacks reasoning *** a result,rL may not be suitable for long-horizon robotic *** this paper,we propose a novel learning framework,called multiple state spaces reasoning reinforcement learning(SrrL),to endow the agent with the primary reasoning ***,we abstract the implicit and latent links between multiple state ***,we embed historical observations through a long short-term memory(LSTM)network to preserve long-term memories and *** proposed SrrL’s ability of abstraction and long-term memory enables agents to execute long-horizon robotic searching and planning tasks more quickly and reasonably by exploiting the correlation between radio frequency identification(rFID)sensing properties and the environment occupation *** experimentally validate the efficacy of SrrL in a visual game-based simulation *** methodology outperforms three state-of-the-art baseline schemes by significant margins.

关键词： reinforcement learning multiple state spaces abstract reasoning long-horizon robotic task

Clinical potential of tensionlengthening strategies during nerve repair

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Neural regeneration research 2022年第4期17卷 779-780页

作者： Stanley Bazarek justin M.Brown Sameer B.Shah Department of Neurosurgery Massachusetts General Hospital/Harvard Medical SchoolBostonMAUSA Department of Neurosurgery Brigham&Women’s Hospital/Harvard Medical SchoolBostonMAUSA Departments of Orthopedic Surgery and Bioengineering University of California-San DiegoLa JollaCAUSA

A(very)brief history of tension in nerve repair:Successful nerve repair is achieved by conveying as many axons successfully to their targets as ***,this is best achieved through a direct end-to-end repair under minimal tension(Millesi,1986).However,this is not feasible in most cases of trauma,where a segment of tissue damage must be excised and *** has most commonly been addressed with the use of nerve grafts to bridge the *** nerve grafts are considered the gold standard,with allograft or synthetic substitutes demonstrating some success over shorter *** their utility,autologous grafts pose challenges of their *** include functional deficit in the donor distribution(typically sensory),extended operative duration,additional scarring,and a lack of intrinsic blood *** are also a poor anatomical match for the stumps being bridged,both internally(disparate neuronal size and composition)as well as externally(often requiring cabled bundles to approximate the caliber of the nerve being repaired).Finally,unlike end-to-end repairs,autologous grafts also require axons to traverse a second repair interface,where a large proportion of axons are lost across the anatomical discontinuity.

关键词： tension repair overcome

Vascularized omental tissue transfer for the treatment of lymphedema:a review

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Plastic and Aesthetic research 2023年第1期10卷 46-55页

作者： rachel Skladman William r.Moritz Elijah J.Tenenbaum Joani M.Christensen justin M.Sacks Division of Plastic and reconstructive Surgery Washington University School of MedicineSt.LouisMO 63108USA

Lymphedema is a debilitating disorder caused by impaired drainage of the lymphatic *** the Western world,lymphedema most often arises secondary to the treatment of *** with lymphedema experience progressive swelling,pain,numbness,and tingling,and decreased quality of *** with persistent symptoms may be subject to chronic *** advent of microsurgery has enabled clinicians to transplant donor lymph nodes and their blood supply from a healthy site to the affected area in a procedure known as vascularized lymph node transplant(VLNT).One donor region is the *** omental lymph node transfer(VOLT)has been shown to decrease limb volume,circumference,and subjective symptoms of *** immunologic properties of the omentum make it a particularly useful lymph node donor site for patients with lymphedemarelated *** omentum may be harvested laparoscopically,with robotic assistance,or through a small laparotomy *** this review,we describe the relevant anatomy and history of VOLT as well as operative *** risks,benefits,and relevant outcome studies will be *** applications of robotic surgery to VOLT will be addressed.

关键词： Lymphedema VOLT VLNT laparoscopy laparotomy gastroepiploic vessels cellulitis