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Adaptive Resource Planning for AI Workloads with Variable Real-Time Tasks

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Computers, Materials & Continua 2023年第3期74卷 6823-6833页

作者： Sunhwa Annie Nam Kyungwoon Cho hyokyung bahn Department of Computer Science and Engineering Ewha UniversitySeoul03760Korea Embedded Software Research Center Ewha UniversitySeoul03760Korea

AI(Artificial Intelligence)workloads are proliferating in modernreal-time *** the tasks of AI workloads fluctuate over time,resourceplanning policies used for traditional fixed real-time tasks should be *** particular,it is difficult to immediately handle changes inreal-time tasks without violating the deadline *** cope with thissituation,this paper analyzes the task situations of AI workloads and findsthe following two ***,resource planning for AI workloadsis a complicated search problem that requires much time for ***,although the task set of an AI workload may change over time,thepossible combinations of the task sets are known in *** on theseobservations,this paper proposes a new resource planning scheme for AIworkloads that supports the re-planning of *** of generatingresource plans on the fly,the proposed scheme pre-determines resourceplans for various combinations of ***,in any case,the workload isimmediately executed according to the resource plan ***,the proposed scheme maintains an optimized CPU(Central Processing Unit)and memory resource plan using genetic algorithms and applies it as soonas the workload *** proposed scheme is implemented in the opensourcesimulator SimRTS for the validation of its *** show that the proposed scheme reduces the energy consumptionof CPU and memory by 45.5%on average without deadline misses.

关键词： Resource planning artificial intelligence real-time system task scheduling optimization problem genetic algorithm

On the stacking fault forming probability and stacking fault energy in carbon-doped 17 at%Mn steels via transmission electron microscopy and atom probe tomography

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Journal of Materials Science & Technology 2022年第20期115卷 177-188页

作者： Hyo Ju Bae Kwang Kyu Ko Muhammad Ishtiaq Jung Gi Kim hyokyung Sung Jae Bok Seol Department of Materials Engineering and Convergence Technology Center for K-metalGyeongsang National University(GNU)Jinju 52828South Korea

Assessing the stacking fault forming probability(P_(sf)) and stacking fault energy(SFE)in medium-or highMn base structural materials can anticipate and elucidate the microstructural evolution before and after ***,these two parameters have been determined from theoretical calculations and empirical ***,the estimation of SFE values in Fe–Mn–C ternary systems is a longstanding debate due to the complicated nature of carbon:that is,whether the carbon doping indeed plays an important role in the formation of stacking faults;and how the amount of carbon atoms exist at grain boundaries or at internal grains with respect to the nominal carbon doping ***,the use of atom probe tomography and transmission electron microscopy(TEM)unveils the influence of carbondoping contents on the structural properties of dual-phase Fe–17 Mn–x C(x=0–1.56 at%)steels,such as carbon segregation free energy at grain boundaries,carbon concentration in grain interior,interplanar D-spacings,and mean width of intrinsic stacking faults,which are essential for SFE *** next determined the Psfvalues by two different methods,viz.,reciprocal-space electron diffraction measurements and stacking fault width measurements in real-space TEM ***,SFEs in the Fe–17 Mn–x C systems were calculated on the basis of the generally-known SFE *** found that the high amount of carbon doping gives rise to the increased SFE from 8.6 to 13.5 m J/m^(2)with non-linear *** SFE trend varies inversely with the mean width of localized stacking faults,which pass through both other stacking faults and pre-existingε-martensite plates without much difficulty at their intersecting *** high amount of carbon doping acts twofold,through increasing the segregation free energy(due to more carbon at grain boundaries)and large lattice expansion(due to increased soluble carbon at internal grains).The experimental data obtained here strengthens the composition-

关键词： Stacking fault formation probability Stacking fault energy High-Mn steel Electron diffraction

A feasible route to produce 1.1 GPa ferritic-based low-Mn lightweight steels with ductility of 47%

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Journal of Materials Science & Technology 2022年第22期117卷 225-237页

作者： Kwang Kyu Ko Hyo Ju Bae Eun Hye Park Hyeon-Uk Jeong Hyoung Seok Park Jae Seok Jeong Jung Gi Kim hyokyung Sung Nokeun Park Jae Bok Seol Department of Materials Engineering and Convergence Technology Center for K-metalGyeongsang National University(GNU)Jinju 52828South Korea School of Materials Science and Engineering Yeungnam UniversityGyeongbuk 38541South Korea Materials Research Team R&D Hyundai MobisYongin 16891South Korea Materials Technology Development Team Doosan Heavy Industries&ConstructionChangwon 51711South Korea

High- and medium-Mn (H/M-Mn) base lightweight steels are a class of ultrastrong structural materials with high ductility compared to their low-Mn counterparts with low strength and poor ***, producing these H/M-Mn materials requires the advanced or high-tech manufacturing techniques, which can unavoidably provoke labor and cost concerns. Herein, we have developed a facilestrategy that circumvents the strength–ductility trade-off in low-Mn ferritic lightweight steels, by employing low-temperature tempering-induced partitioning (LTP). This LTP treatment affords a typical Fe-2.8Mn-5.7Al-0.3C (wt.%) steel with a heterogeneous size-distribution of metastable austenite embeddedin a ferrite matrix for partitioning more carbon into smaller austenite grains than into the larger austenite ones. This size-dependent partitioning results in slip plane spacing modification and lattice strain,which act through dislocation engineering. We ascribe the simultaneous improvement in strength andtotal elongation to both the size-dependent dislocation movement in austenite grains and the controlleddeformation-induced martensitic transformation. The low-carbon-partitioned large austenite grains increase the strength and ductility as a consequence of the combined martensitic transformation andhigh dislocation density-induced hardening and by interface strengthening. Additionally, high-carbonpartitioned small austenite grains enhance the strength and ductility by planar dislocation glide (inthe low strain regime) and by cross-slipping and delayed martensitic transformation (in the high strainregime). The concept of size-dependent dislocation engineering may provide different pathways for developing a wide range of heterogeneous-structured low-Mn lightweight steels, suggesting that LTP maybe desirable for broad industrial applications at an economic cost.

关键词： Low-Mn lightweight steel Carbon partitioning Metastable austenite Dislocation movement

Evidence in Primary Prevention of Type 2 Diabetes Mellitus—What It Means for Primary Prevention of Type 2 Diabetes Mellitus Epidemic in Papua New Guinea

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Journal of Diabetes Mellitus 2022年第2期12卷 87-97页

作者： Leslie bahn Kawa Department of General Internal Medicine Port Moresby General Hospital Port Moresby Papua New Guinea

Type 2 diabetes is in epidemic proportion in Papua New Guinea. Although many people are at high-risk of developing diabetes, there is no diabetes prevention policy and services in Papua New Guinea to address this problem. A literature search was carried out to assess the available evidence in the primary prevention of type 2 diabetes mellitus among the population with pre-diabetes. The result shows that the primary preventative studies conducted on lifestyle modification and the use of metformin in prediabetes patients reduced overt type 2 diabetes mellitus. The application of the evidence in the prevention of the type 2 diabetes epidemic in Papua New Guinea, driven by a policy is feasible to address the diabetes epidemic.

关键词： Primary Prevention Prevention Trials Type 2 Diabetes Mellitus Prediabetes

The Principles of Insulin Management of Type 2 Diabetes Mellitus

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Journal of Diabetes Mellitus 2023年第4期13卷 284-299页

作者： Leslie bahn Kawa Henry Alexander Internal Medicine Division Port Moresby General Hospital Port Moresby Papua New Guinea Department of Geriatric Eastbourne District General Hospital East Sussex NHS Trust Eastbourne UK

Insulin therapy is an integral part of the pharmacological management of Type 2 diabetes mellitus. Guidelines recommended insulin therapy for those patients with suboptimal glycaemic control despite optimal medical treatments. Studies show that insulin therapy with the human and regular insulins improve glycaemic control, reduce the chronic complications, and inevitably improve patient’s quality of life. The new analogue insulin has a better safety profile and efficacies, and has been shown to achieve better outcomes and patient’s acceptability compared with the human and regular insulins. The diabetic guidelines also recommend the intensity of insulin therapy in a personalised glycaemic control strategy based on the patient’s profiles and their preferences. However, the guidelines do not recommend any standardised approach to the principles of insulin initiation, titration, and monitoring. This review summarises the essential principles of insulin initiation, titration, and monitoring in Type 2 diabetes mellitus.

关键词： Insulin Type 2 Diabetes Principles of Insulin Therapy

In vivo analysis of post-joint-preserving surgery fracture of 3D-printed Ti-6Al-4V implant to treat bone cancer

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Bio-Design and Manufacturing 2021年第4期4卷 879-888页

作者： Jong Woong Park Ye Chan Shin Hyun Guy Kang Sangeun Park Eunhyeok Seo hyokyung Sung Im Doo Jung Division of Convergence Technology National Cancer CenterGoyang 10408Republic of Korea Orthopaedic Oncology Clinic National Cancer CenterGoyang 10408Republic of Korea Department of Materials Engineering and Convergence Technology Gyeongsang National UniversityJin-Ju 52828Republic of Korea Department of Mechanical Engineering Ulsan National Institute of Science and TechnologyUNIST-Gil 50Ulsan 44919Republic of Korea

Cancer growth in the bone due to its random shape disables bone strength and thus changes its capacity to support body weight or muscles,which can crucially affect the quality of human life in terms of normal walking or daily *** successful patient recovery,it is necessary to remove the cancer-affected minimal bone area and quickly replace it with a biocompatible metal implant within less than 2 *** electron beam-melted Ti-6Al-4V implant was designed and applied in a patient to preserve the natural knee joint close to the bone *** developed implant fits the bone defect well,and the independent ambulatory function of the natural knee joint was restored in the patient within six weeks after surgery.A delayed fracture occurred six months after the successful replacement of cancer-affected bone with Ti-6Al-4V implant at the proximal meshed junction of the implant because of a minor downward ***,mechanical,and computational analyses were conducted for the fractured area to find the main reason for the delayed *** findings pertaining to the mechanical and material investigation can help realize the safe implantation of the three-dimensionally printed titanium implant to preserve the natural joints of patients with massive bone defects of the extremities.

关键词： 3D printing Bone cancer Titanium alloy implant Electron beam melting Fracture analysis

Recent Progress in the Understanding and Management of Graves' Ophthalmopathy

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Recent Progress in the Understanding and Management of Grave...

中华医学会第十三次全国内分泌学学术会议

作者： Rebecca bahn Division of Endocrinology Mayo ClinicRochesterMNUSAMD

Graves’ophthalmopathy(GO)is a debilitating and potentially sight-threatening ocular autoimmune disease for which existing medical treatment is *** occurs in patients with Graves’hyperthyroidism and/or the presence of circulating thyrotropin receptor(TSHR)*** levels of TRAb have been shown to correlate with the severity and inflammatory activity of GO and high titers

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用大地测量方法确定折射的精度

测绘译丛 1989年第3期 42-47页

作者： bahn.,G. 方佩竹

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格雷夫斯病