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Research and Implementation of IP - VPN

Li Xiuzhong

Strategic Study of CAE 2002, Volume 4, Issue 3, Pages 84-91

Abstract:

Recently, IP - VPN is proposed as a way satisfying large company´s inter-connect requirement because of the prevalence of Internet. But there are some problems to be solved, especially security and QoS. In this paper, one way of network-based VPN QoS is proposed based on analysis of some available QoS algorithms. For IP - VPN, now there are several mechanisms： VLL, VPRN, VPLS and VPDN. This paper places emphasis on VPRN and VPLS. Two kinds of VPRN: BGP/MPLS and VR are discussed and compared with each other. And besides, VLAN, one way of VPLS, is introduced.

Keywords： segment (VPLS) border gateway protocol / multi-protocol label switch (GP/MPLS) virtual router (VR) worst-caseweighted fair queue (WF²Q) random early detection (RED)

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Minimization of total energy consumption in an m-machine flow shop with an exponential time-dependent learning effect

Lingxuan LIU, Zhongshun SHI, Leyuan SHI

Frontiers of Engineering Management 2018, Volume 5, Issue 4, Pages 487-498 doi: 10.15302/J-FEM-2018042

Abstract: A worst-case analysis on shortest process time heuristic is conducted for theoretical measurement.

Keywords： flow shop energy-aware scheduling learning effect nested partition worst-case error bound

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Study and Performance Analysis of TT - FPS Based on CAN Bus

Lu Weijie,Liu Luyuan,Wang Yixin

Strategic Study of CAE 2006, Volume 8, Issue 5, Pages 45-48

Abstract: based on time-triggered architecture (TT - FPS) is presented, and the approach for calculating the worst-case

Keywords： CAN bus TT-FPS the worst-case response time

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Robust mismatched filtering algorithm for passive bistatic radar using worst-case performance optimization Research Articles

Gang Chen, Jun Wang,chengang_xidian@163.com,wangjun@xidian.edu.cn

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 7, Pages 963-1118 doi: 10.1631/FITEE.1900150

Abstract: detects targets by exploiting available local broadcasters and communication transmissions as illuminators, which are not designed for radar. The signal usually contains a time-varying structure, which may result in high-level range ambiguity sidelobes. Because the mismatched filter is effective in suppressing sidelobes, it can be used in a . However, due to the in the reference signal, the sidelobe suppression performance seriously degrades in a system. To solve this problem, a novel algorithm is developed using . In this algorithm, the influence of the low energy level in the reference signal is taken into consideration, and a new cost function is built based on . With this optimization, the mismatched filter weights can be obtained by minimizing the total energy of the ambiguity . Quantitative evaluations and simulation results demonstrate that the proposed algorithm can realize sidelobe suppression when there is a low-energy reference signal. Its effectiveness is proved using real data.

Keywords：外辐射源雷达；距离副峰；低信噪比；失配滤波；最差性能最优

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evaluation of renal function using diffusion weighted imaging and diffusion tensor imaging in type 2

Xiaoyan Chen,Wenxia Xiao,Xinchun Li,Jianxun He,Xiaochun Huang,Yuyu Tan

Frontiers of Medicine 2014, Volume 8, Issue 4, Pages 471-476 doi: 10.1007/s11684-014-0365-8

Abstract:

This work aims to estimate the value of diffusion weighted imaging (DWI) and diffusion tensor imaging

Keywords： type 2 diabetes mellitus microalbuminuria diffusion weighted imaging diffusion tensor imaging early-stage

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radiation fraction induced by interaction burning of tri-symmetric propane fires in open space based on weighted

Jie JI, Junrui DUAN, Huaxian WAN

Frontiers in Energy 2022, Volume 16, Issue 6, Pages 1017-1026 doi: 10.1007/s11708-020-0716-x

Abstract: The interaction of multiple fires may lead to a higher flame height and more intense radiation flux than a single fire, which increases the possibility of flame spread and risks to the surroundings. Experiments were conducted using three burners with identical heat release rates (HRRs) and propane as the fuel at various spacings. The results show that flames change from non-merging to merging as the spacing decreases, which result in a complex evolution of flame height and merging point height. To facilitate the analysis, a novel merging criterion based on the dimensionless spacing / was proposed. For non-merging flames ( / >0.368), the flame height is almost identical to a single fire; for merging flames ( / ≤0.368), based on the relationship between thermal buoyancy and thrust (the pressure difference between the inside and outside of the flame), a quantitative analysis of the flame height, merging point height, and air entrainment was formed, and the calculated merging flame heights show a good agreement with the measured experimental values. Moreover, the multi-point source model was further improved, and radiation fraction of propane was calculated. The data obtained in this study would play an important role in calculating the external radiation of propane fire.

Keywords： flame interaction air entrainment flame height multi-point source model thermal radiation

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Label fusion for segmentation via patch based on local weighted voting Article

Kai ZHU, Gang LIU, Long ZHAO, Wan ZHANG

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 5, Pages 680-688 doi: 10.1631/FITEE.1500457

Abstract: In this paper we propose a novel patch-based segmentation method combining a local weighted voting strategyWe first adopt intensity prior and label prior as two key metrics when implementing the local weightedwe compare the results with those of other methods, including joint fusion, majority voting, local weighted

Keywords： Label fusion Local weighted voting Patch-based Background analysis

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A Full-Scale Optimization of a Crop Spatial Planting Structure and Its Associated Effects Article

Qi Liu, Jun Niu, Taisheng Du, Shaozhong Kang

Engineering 2023, Volume 28, Issue 9, Pages 139-152 doi: 10.1016/j.eng.2023.03.012

Abstract: To this end, a water footprint (WF) simulation module denoted as soil and water assessment tool-waterfootprint (SWAT-WF) is constructed to simulate the amount and components of regional crop WFs.The proposed framework is then verified through a case study of the upper-middle reaches of the Heihe

Keywords： Planting structure optimization Full-scale evaluation index system Water footprint SWAT-WF module

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Day-ahead electricity price forecasting using back propagation neural networks and weighted least square

S. Surender REDDY,Chan-Mook JUNG,Ko Jun SEOG

Frontiers in Energy 2016, Volume 10, Issue 1, Pages 105-113 doi: 10.1007/s11708-016-0393-y

Abstract: proposes the day-ahead electricity price forecasting using the artificial neural networks (ANN) and weighted

Keywords： day-ahead electricity markets price forecasting load forecasting artificial neural networks load serving entities

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EXPLORING THE RECYCLING OF MANURE FROM URBAN LIVESTOCK FARMS: A CASE STUDY IN ETHIOPIA

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 1,

Abstract:

• Livestock manure was the main organic waste in urban and peri-urban areas.

• Manure production will increase by a factor of 3–10 between 2015–2050.

• Only 13%–38% of excreted N by livestock will be recycled in croplands.

• Intensification of urban livestock production greatly increased N surpluses.

• Reducing population growth and increasing livestock productivity needed.

Urban population growth is driving the expansion of urban and peri-urban agriculture (UPA) in developing countries. UPA is providing nutritious food to residents but the manures produced by UPA livestock farms and other wastes are not properly recycled. This paper explores the effects of four scenarios: (1) a reference scenario (business as usual), (2) increased urbanization, (3) UPA intensification, and (4) improved technology, on food-protein self-sufficiency, manure nitrogen (N) recycling and balances for four different zones in a small city (Jimma) in Ethiopia during the period 2015-2050. An N mass flow model with data from farm surveys, field experiments and literature was used. A field experiment was conducted and N use efficiency and N fertilizer replacement values differed among the five types of composts derived from urban livestock manures and kitchen wastes. The N use efficiency and N fertilizer replacement values were used in the N mass flow model.

Livestock manures were the main organic wastes in urban areas, although only 20 to 40% of animal-sourced food consumed was produced in UPA, and only 14 to 19% of protein intake by residents was animal-based. Scenarios indicate that manure production in UPA will increase 3 to 10 times between 2015 and 2050, depending on urbanization and UPA intensification. Only 13 to 38% of manure N will be recycled in croplands. Farm-gate N balances of UPA livestock farms will increase to>1 t·ha⁻¹ in 2050. Doubling livestock productivity and feed protein conversion to animal-sourced food will roughly halve manure N production.

Costs of waste recycling were high and indicate the need for government incentives. Results of these senarios are wake-up calls for all stakeholders and indicate alternative pathways.

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Improved directional-distance filter

JIN Lianghai, LI Dehua

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 2, Pages 205-211 doi: 10.1007/s11465-008-0025-2

Abstract: traditional directional-distance filter (DDF) in a novel way, a new vector filter - the adaptive distance-weighted

Keywords： information distance-weighted directional-distance ADWDDF traditional DDF spatial-distance weighting

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Not asthma, but GERD: case report

WANG Zhonggao

Frontiers of Medicine 2007, Volume 1, Issue 1, Pages 115-119 doi: 10.1007/s11684-007-0022-6

Abstract: Therefore, such a case is reported in detail, similar cases are mentioned briefly as well, and a mechanism

Keywords： resistance mechanism responsible unappreciated responsiveness different

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A case for assessing

Ian T. RILEY

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4, Pages 568-582 doi: 10.15302/J-FASE-2019270

Abstract: Agroecosystems in water-limited contexts— Mediterranean, semi-arid and arid climatic zones—are too frequently degraded systems that will not provide the needed ecosystem services to ensure a future of sustainable agricultural production. The processes that have created this situation continue and are being accelerated by anthropogenic climate change. Increasing arboreal vegetation in these areas through agroforestry is an important strategy to conserve and improve their agroecosystems. Actinorhizal trees and shrubs in the Casurinaceae have a unique set of adaptations for heat and water stress, and/or infertile to hostile soils. Central Anatolia, Turkey is particularly at risk of increasing aridity and further degradation. Therefore, species of and have been evaluated for their potential use in agroecosystem improvement in semi-arid areas with a focus on Central Anatolia. Based on a semiquantitative environmental tolerance index and reported plant stature, eight species were identified as being of high ( . and . ) to moderate ( . , . , . , . , . and . ) priority for assessment, with none of these species having been adequately evaluated for agroforestry deployment in semi-arid agroecosystems in any context.

Keywords： actinorrhizal trees agroforestry climate change ecosystem restoration

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Minimum Reserved Traffic Rate Based Fair Scheduling Algorithm in IEEE 802.16e

Shi Juncai,Hu Aiqun,Guan Yanfeng

Strategic Study of CAE 2008, Volume 10, Issue 2, Pages 54-59

Abstract: justify;">According to the characteristics of IEEE 802.16-2005, a minimum reserve d traffic rate based fairalgorithm has advantages in both fairness and through p ut performance compared with PF (proportional fair

Keywords： IEEE 802-16-2005 scheduling algorithm QoS fairness

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Ecthyma gangrenosum of the scrotum: a case report

Wei Phin Tan,Benjamin A. Sherer,Jerome Hoeksema

Frontiers of Medicine 2016, Volume 10, Issue 1, Pages 101-103 doi: 10.1007/s11684-016-0437-z

Abstract:

A 43-year-old man with pancytopenia from chemotherapy for acute myeloid leukemia developed left scrotal pain, fever, and rigors. Physical exam revealed an ulcerating lesion with central necrosis and eschar surrounded by a halo of erythema on the inferior aspect of the left scrotum. The condition indicated an early necrotizing soft tissue infection. The patient was started on broad-spectrum antibiotics and taken to the operating room for a wound debridement. Blood and tissue cultures grew Pseudomonas aeruginosa, which confirmed the diagnosis of ecthyma gangrenosum of the scrotum. The fever resolved, and the wound healed without further progression after wet to dry dressing changes.

Keywords： ecthyma gangrenosum scrotum genitalia