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Effects of clump spacing on nutrient distribution and root activity of Dendrocalamus strictus in the humid region of k.r.la,peninsular India

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Journal of Forestry research 2017年第6期28卷 1133-1144页

作者： B. H. kittur k. Sudhak.r. B. Mohan kumar T. k. kunhamu P. Sureshkumar Department of Silviculture and Agroforestry College of Forestry Kerala Agricultural UniversityVellanikkara Thrissur Kerala 680656 India School of Ecology and Environment Studies Nalanda University Rajgir District Nalanda Bihar 803116 India Department of Soil Science and Agricultural Chemistry Radio-tracer Laboratory College of Horticulture Kerala Agricultural University Vellanikkara ThrissurKerala 680656 India

The humid agroclimatic conditions of k.r.la,India permit the cultivation of an array of bamboo species of which Dendrocalamus strictus roxb.(Nees.) is an important one on account of its high growth rate and multiple uses. Stand density, a potential tool in controlling the productivity of woody ecosystems, its effect on growth and root distribution patterns may provide a better understanding of productivity optimization especially when bamboo-based intercropping options are *** attributes of 7-year-old bamboo(D. strictus) stands managed at variable spacing(4×4 m, 6×6 m, 8×8 m,10×10 m, 12×12 m) were studied. Functional root activity among bamboo clumps were also studied using a radio tracer soil injection method in which the radio isotopeP was applied to soil at varying depths and lateral distances from the clump. results indicate that spacing exerts a profound influence on growth of bamboo. Widely spaced bamboo exhibited higher clump diameters and crown widths while clump heights were better under closer spacing. Clump height was 30% lower and DBH 52%higher at the widest spacing(12×12 m) compared to the closest spacing(4×4 m). With increasing soil depth and lateral distance, root activity decreased significantly. root activity near the clump base was highest(809 counts per minute, cpm; 50 cm depth and 50 cm lateral distance) at 4×4 m. Tracer study further showed wider distribution of root activity with increase in clump spacing. It may be concluded that the intensive foraging zone of bamboo is within a 50-cm radius around the clump irrespective of spacing. N, P and k content in the upper 20 cm was 2197,21, and 203 kg/ha respectively for the closely spaced bamboo(4×4 m) which were significantly higher than corresponding nutrient content at wider spacings. About 50% of N, P and k were present within the 0–20 cm soil layer, which decreased drastically beyond the 20 cm *** results suggest that stand management practices through planting density regula

关键词： Bamboo Clump spacing Functional root activity radio tracer 32P Soil nutrients

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Control of CAr-T cell activity in space and time:the next level of anti-tumor action

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Signal Transduction and Targeted Therapy 2023年第5期8卷 2035-2037页

作者： Jessica Hoppstädter Alexandra k.kiemer Department of Pharmacy Pharmaceutical BiologySaarland UniversitySaarbrückenGermany

In two recent papers published in Science,advanced synthetic biology techniques were used to overcome the limitations of chimeric antigen receptor(CAr)-T cell therapy:In one case,CAr-T cells were successfully introduced into and maintained in solid tumors,1 and in another approach,CAr-T cell proliferation and activation could be turned on and off in a time-dependent manner by drug administration.2 These approaches might improve therapy for a large number of solid malignancies.

关键词： CAr therapy overcome

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Stability Analysis of Cut Slopes Using Continuous Slope Mass rating and kinematic Analysis in rudraprayag District, Uttarakhand

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Geomaterials 2011年第3期1卷 79-87页

作者： r. k. Umrao r. Singh M. Ahmad T. N. Singh 不详

In mountain terrains of Himalaya, road and highway networks play a vital role in remote areas for transportation, public network and all kind of socio-economic activities. The stability of rock slopes along the roads and highways is a major concern in these hilly regions. Any kind of slope failure may lead to disruption in traffic, loss of properties and lives/injuries as well as environmental degradation. The unplanned excavations of rock slopes for construction or widening purposes may undermine the stability of the slopes. The present study incorporates the stability analysis of road cut slopes along NH-109 which goes to holy shrine of kedarnath. Slope failure is not only a phenomenon of rainy season but it has also been encountered even in dry season. The study area experiences high vehicular traffic especially from March to August due to pilgrims since it is the only road to kedarnath. The distance of about 20 km between rudraprayag and Agastmuni has been investigated. The continuous slope mass rating (CSMr) technique has been used for slope stability analysis at five different locations. CSMr is modification of original slope mass rating (SMr) proposed by romana which is based on well established rock mass rating (rMr) technique. kinematic analysis was also carried out to evaluate these sites for types of failure and its potential failure directions. The potentially vulnerable sites were identified. The results indicate that the CSMr technique may be exploited to assess the stability of rock slopes in the Himalayan territory.

关键词： SMr CSMr rMr Slope Stability rudraprayag

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Magnetic Sensorless Control of Plasma Position and Shape in a Tokamak

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Plasma Science and Technology 2006年第1期8卷 80-83页

作者： k.NAkAMUrA 罗家融王华忠季振山王华王枫齐娜 k.N.SATO k.HANADA M.SAkAMOTO H.IDEI M.HASEGAWA S.kAWASAkI H.NAkASHIMA A.HIGASHIJIMA research Institute for Applied Mechanics Kyushu UniversityFukuoka816-8580Japan Institute of Plasma Physics Chinese Academy of SciencesHefei 230031China Interdisciplinary Graduate School of Engineering Sciences Kyushu UniversityFukuoka816-8580Japan

Magnetic sensorless sensing and control experiments with the plasma horizontal position have been carried out in the superconducting tokamak HT-7. The sensing is made to focus on the ripple frequency component of the power supply with thyristor and directly from them without time integration. There is no drift problem with the integrator of wagnetic sensors. Two kinds of control experiments have been carried out： to keep the position constant and swing the position in a triangular waveform, And magnetic sensorless sensing of plasma shape is discussed.

关键词： sensorless control drift problem HT-7 shape control EAST

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rATIONAL FUNCTIONS OF BEST UNIFOrM APPrOXIMATION AND HOLOMOrPHIC CONTINUATION OF FUNCTIONS

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Analysis in Theory and Applications 1996年第1期12卷 1-9页

作者： I.V.Ivanov r.k.kovacheva J.Gilewicz Balgarian Academy of Sciences Institute of Math NRS Luming FranceBalgarian Academy of Sciences Institute of MathNRS Luming FranceBalgarian Academy of Sciences Institute of MathNRS Luming France

Let f be a function, continuous and real valued on the segment △,△ (-∞,∞) and {rn} be the sequence of the rational functions of best uniform approximation to fon △ of order (n,n). In the present work, the convergence of {rn} in the complex plane is considered for the special caseswhen the poles (or the zeros, respectively) of {rn} accumulate in the terms of weak convergence of measures to acompact set of zera *** a consequence, sufficient conditions for the holomorphic and the meromorphic continuability of fare given.

关键词： rATIONAL FUNCTIONS OF BEST UNIFOrM APPrOXIMATION AND HOLOMOrPHIC CONTINUATION OF FUNCTIONS

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CONVEX CONTrOLLEr DESIGN APPLIED TO AC INDUCTION MOTOr TO SATISFY MULTIPLE SIMULTANEOUS SPECIFICATIONS

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Chinese Journal of Mechanical Engineering 2006年第4期19卷 475-479页

作者： LEE Seung-Ju SUN Dong MILLS James k Department of Mechanical and Industrial Engineering University of Toronto Toronto MSS 3G8 Canada Department of Manufacturing Engineering and Engineering Management City University of Hong Kong Hong Kong SAR China

The application of a closed-loop specification oriented feedback control design method, which addresses the design of controllers to satisfy multiple simultaneous conflicting closed-loop performance specifications is presented. The proposed approach is well suited to the design of controllers which must meet a set of conflicting performance specifications. Gain tuning is central to the design process, however, the tuning process is greatly simplified over that presented by the problem of tuning a PID controller for example. The proposed control method is applied to an AC induction motor, with an inner-loop flux vector controller applied to design a position control system. Experimental results verify the effectiveness of this method.

关键词： Convex controller design Multiple simultaneous specifications AC induction motor Nonlinear control

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The modern testicular prosthesis:patient selection and counseling,surgical technique,and outcomes

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Asian Journal of Andrology 2020年第1期22卷 64-69页

作者： Solomon Hayon Jamie Michael r Matthew Coward Department of Urology University of North Carolina School of MedicineChapel HillNC 27500-7235USA University of North Carolina School of Medicine Chapel HillNC 27500-7235USA

The testicular prosthesis can be an afterthought for providers when performing an orchiectomy for testicular cancer,torsion,atrophic testis,or ***,data suggest that patients find the offer of a testicular prosthesis and counseling regarding placement to be extremely important from both a pragmatic and a psychosocial *** two-thirds of men undergoing orchiectomy are offered an implant at the time of orchiectomy and of those offered about one-third move forward with prosthesis *** relatively low acceptance rate is in stark contrast with high patient satisfaction and low complication rates for those who undergo the *** most common postoperative patient concerns are minor and involve implant positioning,size,and ***,we provide an up-to-date review of modern preoperative evaluation,patient selection,expectation management,surgical technique,and expected outcomes for testicular prostheses.

关键词： anorchia orchiectomy patient satisfaction prostheses and implants testicular neoplasms testis

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Entanglement Swapping in the Presence of White and Color Noise

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Communications in Theoretical Physics 2018年第2期69卷 143-153页

作者： Ivan S. Dotsenko r. k.r.bka Taras Shevchenko National University of kyiv Kyiv Ukrain

The influence of white and color noise on the outcome of the entanglement swapping process is investigated in a four-qubit system. Critical degree of noise in initial state, that could destroy entanglement in a result state is presented. The entanglement characteristics, such as concurrence, tangle, etc. are compared. results could be helpful for experiments regarding entanglement swapping as conditions for initial quantum entangled states, to obtain entangled result state.

关键词： entanglement entanglement swapping white noise entanglement

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Asthma in pregnancy

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World Journal of Pharmacology 2014年第4期3卷 56-71页

作者： Hayley k Blackburn Douglas r Allington kendra A Procacci Michael P rivey Department of Pharmacy Practice University of Montana Skaggs School of Pharmacy Missoula MT 59812 United States Department of Pharmacy Community Medical Center Missoula MT 59804 United States Department of Pharmacy Grant Creek Family Practice Missoula MT 59804 United States

Asthma affects approximately 8% of women during pregnancy. Pregnancy results in a variable course for asthma control, likely contributed to by physiological changes affecting the respiratory, immune, and hor-monal systems. While asthma during pregnancy has been associated with an increased risk of maternal and fetal complications including malformations, available data also suggest that active asthma management and monitoring can decrease the risk of adverse outcomes. The diagnosis, disease classifcation, and goals for asthma management in the pregnant woman are the same as for nonpregnant patients. However, evidence shows that pregnant asthmatics are more likely to be under-treated, resulting in asthma exacerbations occurring in approximately one third and hospitalization in one tenth of patients. Pharmacotherapeutic management of asthma exacerbations in pregnant patients follows stan-dard treatment guidelines. In contrast, the principles of asthma maintenance therapy are slightly modified in the pregnant patient. Patients and practitioners may avoid use of asthma medications due to concern for a risk of fetal complications and malformations. A variable amount of information is available regarding the risk of a given asthma medication to cause adverse fetal out-comes, and it is preferable to use an inhaled product. Nevertheless, based on available data, the majority of asthma medications are regarded as safe for use during pregnancy. And, any increased risk to either the mother or fetus from medication use appears to be small compared to that associated with poor asthma control.

关键词： Asthma Pregnancy Fetal outcomes Maternal outcomes Management of asthma Pharmacotherapy

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Carbon accumulations by stock change approach in tropical highland forests of Chiapas, Mexico

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Journal of Forestry research 2020年第6期31卷 2479-2493页

作者： Deb r.Aryal roldan ruiz-Corzo CONACYT-UNACH Facultad de Ciencias Agrono´micasUniversidad Auto´noma de ChiapasCarretera Ocozocoautla-Villaflores km 84.530470 VillafloresCHISMexico Facultad de Ciencias Agrono´micas Universidad Auto´noma de ChiapasCarretera Ocozocoautla-Villaflores km 84.530470 VillafloresCHISMexico

Changes in forest biomass and soil organic carbon reserves have strong links to atmospheric carbon dioxide *** activities such as livestock grazing,forest fires,selective logging and firewood extraction are the common disturbances that affect the carbon dynamics of the forest ***,we hypothesized that such anthropogenic activities significantly reduce the carbon stocks and accumulation rates in the tropical highland forests of the Sierra Madre de Chiapas in Southern *** sampled the Pinus oocarpa Scheide dominated forests within the elevation range of 900 to 1100 m above sea level in 2010,2014 and *** measured the stand structural properties and used the reported allometric equations to calculate the tree carbon *** change approach was used to calculate carbon accumulation *** results showed a gradual increase in carbon storage over the 7-year period from 2010 to 2017,but the rate of increase varied significantly between the study *** aboveground carbon stock was 107.25±11.77 Mg ha-1 for the site with lower anthropogenic intensity,compared to 74.29±16.85 Mg ha-1 for the site with higher *** current annual increment for the forest with lower anthropogenic intensity was 7.81±0.65 Mg ha-1 a-1,compared to 3.87±1.03 Mg ha-1 a-1 in the site with high anthropogenic *** at varying rates,these forests are functioning as important carbon *** results on carbon accumulation rates have important implications in greenhouse gas mitigations and forest change modelling in the context of changing global climate.

关键词： Anthropogenic disturbances Biomass Carbon accumulation rates Forest carbon pools Forest structure Southern Mexico

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