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Tree growth performance and estimation of wood quality in plantation trials for Maesopsis eminii and Shorea spp.

Journal of Forestry Research 2018年第4期29卷 1144-1153页

作者： Lina Karlinasari suhada andini Descarlo Worabai Prijanto Pamungkas Sri Wilarso Budi Iskandar Z.Siregar Department of Forest Products Faculty of ForestryBogor Agricultural University(IPB) Alumnus Department of Silviculture Faculty of ForestryBogor Agricultural University(IPB) Department of Silviculture Faculty of ForestryBogor Agricultural University(IPB)

Plantations of tropical species axe becoming an increasingly important source of wood. However, it is important that research trials focus not only on tree growth performance, but also on wood quality. The aims of this study were to assess the growth performance of six commercially and ecologically important tree species from separate plantation trials in Indonesia and to determine the relationships between tree growth and wood quality in terms of the dynamic modulus of elasticity （MOE） and wood density. Forty-eight 7-year Maesopsis eminii Engl. and thirty-five 9-year specimens （7 each of 5 Shorea spp.） were selected from two trials. The MOE, based on acoustic velocity, was indirectly measured to evaluate wood stiffness. Tree-growth performance was evaluated, and correlations between growth traits and acoustic velocity as well as density and wood stiffness properties were estimated. The growth performance of M. eminii in terms of tree volume was significantly different in three different cate- gories of growth （i.e. fast, medium, slow）. Of the five Shorea spp. studied, Shorea leprosula Miq. had the highest growth rate, as expected since it is known to be a fastgrowing Shorea species. Indirect measurement of wood quality by means of non-destructive ultrasonic methods showed a weak negative correlation between tree volume and acoustic velocity and dynamic MOE. Although each fast-growing tree could reach a merchantable size faster than other varieties or species, wood traits of various species tested were not significantly different based on tree growth rate performance. The findings from this study could be used to improve selection criteria in future breeding trials; indirect measurements of the dynamic modulus of elasticity can be used in mass pre-selection of genetic materials, to choose the most-promising material for in-depth evaluation.

关键词： Dynamic MOE Non-destructive test Selection criteria Tree growth Wood quality Maesopsiseminii Shorea spp

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Traditional herbal medicine as adjunctive therapy for colorectal cancer:a scoping review

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Traditional Medicine Research 2022年第2期7卷 43-52页

作者： Siti Rohani Nurumal Nur suhada Ramli Zulkefley Mohammad Shamsul Azhar Shah Department of Community Health Faculty of MedicineNational University of MalaysiaKuala Lumpur 56000Malaysia.

Background:A variety of therapy options are available for colorectal cancer,ranging from traditional medicine to complementary and alternative medicine.There is a growing body of evidence supporting the efficacy of complementary and alternative medicine.Therefore,the main aim of this study is to conduct a scoping evaluation of traditional and herbal medicine’s effectiveness as an additional therapy for colorectal cancer patients in clinical settings.Methods:A systematic search was conducted for all articles pertaining to clinical trials related to traditional herbal medicine(THM)with or without other treatments,such as chemotherapy,placebos,or other types of treatment,published from 2010 to November 13,2020,using four search engines,namely Medline,Web of Science,Cochrane Library,and Scopus.Results:The number of colorectal cancer patients in five trials ranged from 89 to 565 people.The THMs stated in these studies were catalpol(Rehmannia glutinosa extract),the traditional Japanese medicine Daikenchuto(mixture of herbal extracts)and Goshajinkigan,Chinese patent herbal medicine Aidi injection,and the traditional Chinese medicine Simo decoction.Positive results were reported in term of reduction of colorectal cancer tumour marker(by catalpol),improvement of gastrointestinal function following gastrointestinal surgery(by Daikenchuto and Simo decoction),better disease control rate and quality of life score(by combination of Aidi injection and chemotherapy),and a decrease in the incidence of oxaliplatin-induced peripheral neurotoxicity(Goshajinkigan).Conclusion:All studies demonstrated fewer adverse effects found in THM intervention groups,however,evidence pointing to THMs’favourable effects on colorectal cancer patients is still required.Therefore,researchers and clinicians are encouraged to perform more research in this area so that more evidence of THM’s efficacy and safety in clinical settings can be obtained.

关键词： traditional and herbal medicine colorectal cancer catalpol Daikenchuto Aidi Simo decoction Goshajinkigan

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Numerical Implementation Considerations in Applying the QFT Stability Theorem

Numerical Implementation Considerations in Applying the QFT ...

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第十九届中国控制会议

作者： suhada Jayasuriya Dept．of Mechanical Engineering Texas A＆M Univ．College Station TX77843-3123

＜正＞In this paper, we first demonstrate the equivalence of the Zero Exclusion Condition from robust stability analysis and the QFT Stability Theorem. The implementation of the QFT Stability Theorem requires the determination of a nominal plant P0（s）, then the generation of the bounds on the nominal loop transfer function L0（s） = G（s）P0（s） at selected frequency points. In this procedure, however it can be noticed in this paper that there are cases （i.e., for neutrally stable plants） where bounds cannot be correctly calculated at certain frequency points depending on the choice of the nominal plant. How to choose a nominal plant, and correspondingly, how to select the frequency points for bound generation are discussed. In the end, a practical approach is proposed for the robust design of neutrally stable plants.

关键词： QFT Robust Stability Frequency Bounds.

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