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Frontiers of Structural and Civil Engineering 2024年第8期18卷 1195-1208页

作者： Dev Kunwar Singh CHAUHAN Pandu r.VUNDAVILLI Indian Institute of Technology Bhubaneswar Bhubaneswar 752050India

The present work aims to develop an object tracking controller for the Stewart platform using a computer vision-assisted machine learning-based *** research is divided into two *** first module focuses on the design of a motion controller for the Physik Instrumente(PI)-based Stewart *** contrast,the second module deals with the development of a machine-learning-based spatial object tracking algorithm by collecting information from the Zed 2 stereo vision ***,simple feed-forward neural networks(NN)are used to predict the orientation of the top table of the *** training,the x,y,and z coordinates of the three-dimensional(3D)object,extracted from images,are used as the input to the *** contrast,the orientation information of the platform(that is,rotation about the x,y,and z-axes)is considered as the output from the *** orientation information obtained from the network is fed to the inverse kinematics-based motion controller(module 1)to move the platform while tracking the *** training,the optimised NN is used to track the continuously moving 3D *** experimental results show that the developed NN-based controller has successfully tracked the moving spatial object with reasonably good accuracy.

关键词： Stewart platform feed-forward neural networks motion controller inverse kinematics stereo vision

Evaluation of a hepatic biomarker of nutritional imbalance in juvenile red drum(Sciaenops ocellatus) fed 60% soybean meal-based diets using NMr-based metabolomics

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Animal Nutrition 2024年第1期16卷 45-61页

作者： Fabio Casu Aaron M.Watson Justin Yost T.Gibson Gaylord Daniel W.Bearden Michael r.Denson Marine resources research Institute South Carolina Department of Natural Resources Bozeman Fish Technology Center United States Fish and Wildlife Service Marine Biochemical Sciences Group Chemical Sciences Division National Institute of Standards and Technology Hollings Marine Laboratory

A 12-week feeding trial with juvenile red drum(Sciaenops ocellatus) fed high-soybean meal(SBM) diets was conducted to investigate a putative biomarker of nutritional imbalance, N-formimino-L-glutamate(FIGLU). Three fishmeal-free, 60% SBM pelleted diets(named B12, Fol, and Met, respectively) were tested to evaluate the effects on growth performance and tissue metabolite profiles of supplementation of vitamin B12(0.012 mg/kg), folate(10 mg/kg), methionine(1 g/kg) respectively, above basal supplementation levels. A fourth SBM-based diet(named B12/Fol/Met) was formulated with a combination of B12, folate, and methionine to attain the above-mentioned target concentrations. A fifth 60% SBM diet(named FWS) with methionine supplementation(1 g/kg above basal supplementation levels), enriched with taurine, lysine and threonine as well as minerals, was also tested. This diet contained formulation targets and additives which have allowed for replacing fishmeal with plant proteins in rainbow trout feeds. Control diets included a fishmeal-based diet(named FM), an unsupplemented basal 60% SBM diet(named SBM60), and a “natural” diet(named N) made up of equal parts of fish(cigar minnows), squid and shrimp as a positive reference for growth performance. Formulated feeds contained approximately 37% total crude protein, approximately 14% total crude lipid and were energetically balanced. Standard growth performance metrics were measured, and tissues(liver, muscle) were collected at week 12 to evaluate diet-induced metabolic changes using nuclear magnetic resonance(NMr)-based *** results show that the FWS diet outperformed all other SBM diets and the FM diet under all performance metrics(Pfed the N diet but was detected in those fed the SBM diets and the FM diet. Fish fed the FWS diet and the Met diet showed lower hepatic levels of FIGLU compared with the other SBM-based diets(Prent supplementatio

关键词： Aquaculture Metabolomics Nuclear magnetic resonance red drum Soybean meal N-Formimino-L-glutamate

Assimilation of GOES-r Geostationary Lightning Mapper Flash Extent Density Data in GSI 3DVar, EnKF, and Hybrid En3DVar for the Analysis and Short-Term Forecast of a Supercell Storm Case

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Advances in Atmospheric Sciences 2024年第2期41卷 263-277页

作者： rong KONG Ming XUE Edward r.MANSELL Chengsi LIU Alexandre O.FIErrO Center for Analysis and Prediction of Storms Norman Oklahoma 73072U.S.A University of Oklahoma Norman Oklahoma 73072U.S.A NOAA/National Severe Storms Laboratory NormanOklahoma 73072U.S A.4Zentralanstalt für Meteorologie und Geodynamik Department of Forecasting Models-ZAMGVienna 1190Austria

Capabilities to assimilate Geostationary Operational Environmental Satellite “r-series ”(GOES-r) Geostationary Lightning Mapper(GLM) flash extent density(fed) data within the operational Gridpoint Statistical Interpolation ensemble Kalman filter(GSI-EnKF) framework were previously developed and tested with a mesoscale convective system(MCS) case. In this study, such capabilities are further developed to assimilate GOES GLM fed data within the GSI ensemble-variational(EnVar) hybrid data assimilation(DA) framework. The results of assimilating the GLM fed data using 3DVar, and pure En3DVar(PEn3DVar, using 100% ensemble covariance and no static covariance) are compared with those of EnKF/DfEnKF for a supercell storm case. The focus of this study is to validate the correctness and evaluate the performance of the new implementation rather than comparing the performance of fed DA among different DA schemes. Only the results of 3DVar and pEn3DVar are examined and compared with EnKF/DfEnKF. Assimilation of a single fed observation shows that the magnitude and horizontal extent of the analysis increments from PEn3DVar are generally larger than from EnKF, which is mainly caused by using different localization strategies in EnFK/DfEnKF and PEn3DVar as well as the integration limits of the graupel mass in the observation operator. Overall, the forecast performance of PEn3DVar is comparable to EnKF/DfEnKF, suggesting correct implementation.

关键词： GOES-r lightning data assimilation EnKF EnVar

Marine yeast rhodotorula paludigena VA 242 a pigment enhancing feed additive for the Ornamental Fish Koi Carp

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Aquaculture and Fisheries 2024年第1期9卷 66-70页

作者： r.rekha K.A.Nimsi K.Manjusha T.K.Sirajudheen Faculty of Ocean Science&Technology Kerala University of Fisheries and Ocean Studies(KUFOS)CochinKerala682506India

Skin colour is an important criterion in determining the aesthetic appeal of ornamental fishes,and thus their market *** the pigment enhancement in ornamental fishes has been the subject of extensive research by using various synthetic as well as natural pigment *** composition is one of the most important elements that influence the development of pigmentation in *** study is an attempt to assess the possibility of using carotenogenic marine yeast as pigment enhancer in fish diet for Koi carp,Cyprinus *** 60 days feeding experiment was done by using feed incorporated with mangrove associated marine yeast rhodotorula paludigena *** pigmentation in the scales of fishes fed with experimental feed was observed than that fed with the control diet(normal pellet feed).Furthermore the improved growth rate and general wellbeing in fishes fed with experimental feed provides scope for further studies in this field with respect to the growth and survival of fishes.

关键词： Marine yeasts Carotenoids Ornamental fishes Pigment enhancer Feed additive rhodotorula sp

Complexed amino acid minerals vs. bis-glycinate chelated minerals:Impact on the performance of old laying hens

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Animal Nutrition 2024年第1期16卷 395-408页

作者： Marcos J.B.Santos Maria C.M.M.Ludke Leandro M.Silva Carlos B.V.rabello Mércia r.Barros Fabiano S.Costa Clariana S.Santos Jamille S.S.Wanderley Department of Animal Science Rural Federal University of Pernambuco Department of Veterinary Science Rural Federal University of Pernambuco

The present study was to evaluate the effect of trace minerals(Zn, Mn, and Cu) from complexed amino acid minerals(ZMCAA) and bis-glycinate chelated minerals(ZMCGly) in laying hen diets on performance,internal and external egg quality, yolk mineral deposition, intestinal morphometry, and bone characteristics. From 78 to 98 weeks of age, 400 White LSL-Lite strain laying hens were distributed in a randomized design with 4 treatments with 10 replicates per treatment. Treatments were distributed in a 2 ×2 factorial arrangement using either Zn, Mn, and Cu of ZMCAA or ZMCGly source at 2 levels: low(20, 20,and 3.5 mg/kg of Zn, Mn, and Cu, respectively) or high(40, 40, and 7 mg/kg of Zn, Mn, and Cu,respectively). The analysis of variance was performed, and in cases where differences were observed, the means were compared using Tukey?s test(P rce and level of trace mineral supplementation had a significant impact on the performance of laying hens. Hens fed ZMCAA had higher egg production(P = 0.01), egg weight(P = 0.02), egg mass(P = 0.01), and lower feed conversion ratio(P =0.05) compared to those fed ZMCGly. The ZMCAA supplementation showed higher albumen height(P =0.01), albumen weight(P = 0.01), and eggshell thickness(P reater for hens received ZMCAA. Tibia weight(P = 0.04)and bone densitometry(P re higher with ZMCAA supplementation. In the small intestine, ZMCAA resulted in longer villi(P = 0.02) and shorter crypt depth(P = 0.01) in the *** and ileum measurements were influenced by the level and source of trace minerals(P fed ZMCAA exhibited superior performance, egg quality, deposition of trace minerals in the egg yolk, and bone density compared to hens fed ZMCGly. In this study, older laying hens supplemented with ZMCAA at lower levels demonstrated adequate levels of supplementation.

关键词： Bis-glycinates Metal-amino acids radiodensity Trace minerals

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粪肥的价值

今日养猪业 2014年第9期 8-9页

作者： fed funk 美国密西西比州立大学

粪肥价值的实现首先应该明确的是施用粪肥的目标,从经济角度考虑,我们需要在种植业中高效地应用粪肥中营养成分的价值。同时,我们也需要考虑到环境方面的影响。我们需要在使用粪肥的同时保护环境,避免环境破坏带来维护成本的增加。合理... 详细信息

粪肥价值的实现首先应该明确的是施用粪肥的目标,从经济角度考虑,我们需要在种植业中高效地应用粪肥中营养成分的价值。同时,我们也需要考虑到环境方面的影响。我们需要在使用粪肥的同时保护环境,避免环境破坏带来维护成本的增加。合理化使用粪肥才能最大化实现粪肥的价值。1了解粪肥的价值需要了解粪肥的价值首先需要了解粪肥的成分,这就需要好的样本和好的实验室来进行粪肥的价值分析。好的土壤样本能给我们提供土壤肥沃等级的信息(土壤中磷、钾含量等),我们应该以实地考察、实地取样

关键词：粪肥土地营养成分施肥量施用量

Experiments　with　single　atoms　in　cavities　and　traps

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Chinese Journal of Lasers 1994年第3期 193-213页

作者： H.Walther(Sektion Physik der Universitat Munchen and Max-Planck-Institut fur Quantenoptik 85748 Garching, fed. rep.of Germany)

ＥｘｐｅｒｉｍｅｎｔｓｗｉｔｈｓｉｎｇｌｅａｔｏｍｓｉｎｃａｖｉｔｉｅｓａｎｄｔｒａｐｓＨ．Ｗａｌｔｈｅｒ（ＳｅｋｔｉｏｎＰｈｙｓｉｋｄｅｒＵｎｉｖｅｒｓｉｔａｔＭｕｎｃｈｅｎａｎｄＭａｘ－Ｐｌａｎｃｋ－Ｉｎｓｔｉｔ... 详细信息

ＥｘｐｅｒｉｍｅｎｔｓｗｉｔｈｓｉｎｇｌｅａｔｏｍｓｉｎｃａｖｉｔｉｅｓａｎｄｔｒａｐｓＨ．Ｗａｌｔｈｅｒ（ＳｅｋｔｉｏｎＰｈｙｓｉｋｄｅｒＵｎｉｖｅｒｓｉｔａｔＭｕｎｃｈｅｎａｎｄＭａｘ－Ｐｌａｎｃｋ－ＩｎｓｔｉｔｕｔｆｕｒＱｕａｎｔｅｎｏｐｔｉｋ...

关键词： one-atom maser trap photon statistics storage ring

Exploring the effects of dietary inulin in rainbow trout fed a high‑starch,100%plant‑based diet

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Journal of Animal Science and Biotechnology 2024年第2期15卷 713-732页

作者： raphaël Defaix Jep Lokesh Laura Frohn Mickael Le Bechec Thierry Pigot Vincent Veron Anne Surget Sandra Biasutti Frederic Terrier Sandrine Skiba-Cassy Jerome roy Stephane Panserat Karine ricaud Universite de Pau Et Des Pays de L’Adour E2S UPPAINRAENUMEASaint‑Pee‑Sur‑NivelleFrance Universite de Pau Et Des Pays de L’Adour E2S UPPACNRSIMT Mines AlesIPREMPauFrance Universite de Pau Et Des Pays de L’Adour E2S UPPAIUT des Pays de l’AdourDepartement Genie BiologiqueMont de MarsanFrance.

Background High dietary carbohydrates can spare protein in rainbow trout(Oncorhynchus mykiss)but may affect growth and ***,a prebiotic,could have nutritional and metabolic effects,along with anti-inflammatory properties in teleosts,improving growth and *** tested this hypothesis in rainbow trout by feeding them a 100%plant-based diet,which is a viable alternative to fishmeal and fish oil in aquaculture *** a two-factor design,we examined the impact of inulin(2%)as well as the variation in the carbohydrates(CHO)/plant protein ratio on rainbow *** assessed the influence of these factors on zootechnical parameters,plasma metabolites,gut microbiota,production of short-chain fatty acids and lactic acid,as well as the expression of free-fatty acid receptor genes in the mid-intestine,intermediary liver metabolism,and immune markers in a 12-week feeding *** The use of 2%inulin did not significantly change the fish intestinal microbiota,but interestingly,the high CHO/protein ratio group showed a change in intestinal microbiota and in particular the beta diversity,with 21 bacterial genera affected,including ralstonia,Bacillus,and 11 lactic-acid producing *** were higher levels of butyric,and valeric acid in groups fed with high CHO/protein diet but not with *** high CHO/protein group showed a decrease in the expression of pro-inflammatory cytokines(il1b,il8,and tnfa)in liver and a lower expression of the genes coding for tight-junction proteins in mid-intestine(tjp1a and tjp3).However,the 2%inulin did not modify the expression of plasma immune ***,inulin induced a negative effect on rainbow trout growth performance irrespective of the dietary *** With a 100%plant-based diet,inclusion of high levels of carbohydrates could be a promising way for fish nutrition in aquaculture through a protein sparing effect whereas the supplementation of 2%inulin does not appear to improve the use of CHO wh

关键词： Aquaculture Fish nutrition Gut microbiota Immune markers Intermediary metabolism Inulin Prebiotic rainbow trout Short-chain fatty acids

Hypolipidemic activity of a hydroalcoholic extract of Cyperus scariosus Linn. root in guinea pigs fed with a high cholesterol diet

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Chinese Journal of Natural Medicines 2014年第11期12卷 819-826页

作者： Hiren M.Chawda Divyesh r.Mandavia Pravin H.Parmar Seema N.Baxi Chandrabhanu r.Tripathi Pacific Medical College & Hospital Udaipur Rajasthan India Government Medical College Bhavnagar-364001 Gujarat India Analytical Chemistry Division Department of Chemistry Maharaja Krishnakumarsinhji Bhavnagar University Bhavnagar 364002 India

Lipid-lowering and antioxidant activities of a hydroalcoholic extract of Cyperus scariosus Linn. root(HCS) were evaluated in guinea pigs fed with a high cholesterol diet. Serum lipid profile(total cholesterol, triglycerides, LDL-C, VLDL-C, and HDL-C), atherogenic indices and serum enzymes(ALT, AST, ALP, LDH, and CK-MB) were performed in each group at 0 days and at the end of 60 days. Histological study of liver and kidney was done in groups 1, 2, 5, 6 and 7. The total phenolic and flavonoid content in HCS and its antioxidant activity were evaluated by the DPPH assay. Both doses of HCS decreased serum lipid profile and atherogenic indices(P ring, immunosuppressive and antioxidant properties, and mays have value in atherosclerosis prevention. The higher dose of HCS also reduced serum AST, ALP, and LDH levels and rosuvastatin increased AST and ALP levels(P r showed decreased lipid accumulation and improvement in hepatocytes in HCStreated animals. The antioxidant activity of HCS may be responsible for its lipid lowering and cytoprotective action. HCS had significant lipid lowering and antioxidant activity, which; may be due to the phenolic compounds. HCS may be a safe and cost effective alternative to current statin therapy for patients with dyslipidaemia.

关键词： Antioxidant activity Cyperus scariosus Dyslipidemia Statin

Water and nutrient recovery from urine:A lead up trail using nano-structured In_(2)S_(3)photo electrodes

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Chinese Physics B 2021年第5期30卷 531-535页

作者： r Jayakrishnan T r Sreerev Adith Varma Department of Physics University of KeralaThiruvananthapuramKerala 695581India Photovoltaic research Laboratory Christian College Chenagnnur 689122India

Developments of economic systems are critical for bio-regenerative life support systems in manned space *** this work we report on the feasibility of using two direct sunlight powered processes sequentially for the recovery of water and nutrients from *** work presents experimental evidence on nutrient and water recovery achieved using the proto-type designed and *** report the design and testing of a solar still which would serve on the nutrient recovery *** cooled condensate from the solar still is fed into a solar powered electrolysis unit where nano-structured indium sulphide(In_(2)S_(3))thin films coated over fluorine doped tin oxide(SnO_(2):F)substrate serve as one of the working *** electrolysis takes place in the absence of an electrolyte which manifests as a technical achievement of our *** results show that the COD level in the recycled water is very *** In_(2)S_(3)photo-electrodes are stable without any physical damage after the process.

关键词： semiconductors water quality thin film structure and morphology electrolysis