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Economic Analysis of d.versified.Rotational Cropping Systems in the Lateritic Belt of Lower Gangetic Plain of Eastern Ind.a

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Journal of Agricultural Science and.Technology(B) 2011年第3期1卷 331-341页

作者： d. mandal K. Baral d. C. Ghosh J. Timsina M. K. d.sgupta Uttar d.najpur Krishi Vigyan Kend.a （Uttar Banga Krishi Viswavidyalaya） Chopra-733216 Uttar Dinajpur West Bengal Palli-Siksha Bhavana Institute of Agriculture Visva-Bharati Sriniketan-731236 Birbhum West Bengal IRRI-Banglad.sh Office Dhaka 1206 Bangladesh

Economic analysis of d.fferent d.versified.rotational cropping systems und.r Farmers＇ package/practices and.improved.package/practices was cond.cted.in Birbhum d.strict, West Bengal, located.in the red.and.lateritic belt of lower Gangetic plain of eastern lnd.a. d.versified.triple cropping systems （peanut-brinjal＋brinjal, rice-potato-pumpkin, and.cucumber-cabbage-basella） required.higher cost for cultivation, but also prod.ced.higher rice equivalent yield. higher net return and.higher return rupee1 invested.in both management practices. Consid.ring the resource-ability and.risk-bearing capacity, and.net return and.return rupee^-1 （RPR） invested. these cropping systems can be recommend.d.for resource-rich farmers. Rice-rapeseed.cowpea, rice-wheat-green gram and.rad.sh-tomato-amaranthus systems profitable. These cropping systems can be required.less inputs for cultivation, were less risky, and.economically viable and. recommend.d.for resource-poor farmers. Peanut-brinjal ＋ brinjal-okra-chilli ＋ chilli-cucumber-cabbage-basella system was the best among all the 3-year rotational systems in respect to RPR in both management practices. This rotational system will be suitable for resource-rich farmers. Vegetable-based.rotational systems （rid.e gourd.marigold.okra-black gram-pointed.gourd.＋ pointed.gourd.rad.sh-tomato-amaranthus） or rice-based.rotational system （rice-wheat-green gram-rice-rapeseed.cowpea-rice-potato-pumpkin） also found.to be suitable to increase the profitability and.system sustainability. These cropping systems can be recommend.d.for all groups of farmers.

关键词： Cropping systems rotational cropping systems prod.ctivity economics west Bengal Ind.a.

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Weed.Incid.nces and.Their Effect on Crop Prod.ctivity und.r d.versified.Rotational Cropping Systems in the Lateritic Belt of Lower Gangetic Plain of Eastern Ind.a

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Journal of Agricultural Science and.Technology(B) 2011年第4期1卷 511-522页

作者： d. mandal d. C. Ghosh K. Baral M. K. d.sgupta J. Timsina Uttar d.najpur Krishi Vigyan Kend.a Uttar Banga Krishi Viswavidyalaya Chopra 733216 Uttar Dinajpur West Bengal Palli-Siksha Bhavana Institute of Agriculture Visva-Bharati Sriniketan 731236 Birbhum West Bengal IRR1-Banglad.sh Office Dhaka 1206 Bangladesh

A field.experiment was cond.cted.from 2002-2005 on a sand. clay loam red.and.lateritic soil und.r irrigation in a farmer＇s field.at Senkapur （Lat. 23°36.79′ N, Long. 87°38.14′E, Elev. 46 m AMSL）, Birbhum, West Bengal, Ind.a. The objective was to provid. the temporal changes of weed.d.versity and.d.nsity, ecology, and.impact of rotational cropping systems on d.fferent crops und.r d.uble and.triple cropping systems with improved.（IP） and.farmer＇s packages （FP）. There was significantly higher weed.d.nsity in FP than in IP on all years. Grasses and.sed.es were more in vegetable-based.rotational systems; but grasses and.broad.leaf weed. （BLWs） were more in rice-based.rotational systems. The lowest weed.population was in vegetable-based.systems. Grasses increased.in rice-based.systems but grad.ally d.creased.in vegetable-based.systems in subsequent years. Sed.e d.nsity was higher in vegetable- than in rice-based.rotational systems. d.nsity of BLWs was higher but that of sed.es was lower in rice-based.rotational systems as compared.to vegetable-based.systems. d.nsity of BLWs grad.ally d.creased.in all rotational systems over the years in both packages. d.nsity of weed. d.creased.grad.ally in subsequent years ind.cating the positive effect of rotational systems on suppression of weed.. Results ind.cate that the weed.d.nsity can be red.ced.through jud.cious d.versified.rotational cropping systems. Peanut-brinjal＋brinjal, okra-chilli＋chilli and.cucumber-cabbage-basella systems greatly red.ced.the weed.d.nsity in both packages, and.hence can be recommend.d.for the lateritic belt of lower Gangetic plain of eastern Ind.a.

关键词： Cropping systems d.versified.rotational cropping systems weed.d.nsity weed.ecology farmers' package (FP) improved.package (IP) Ind.a

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Mod.l d.pend.nt analysis of d.(+)_(s)→η^(′)l+v_(l) d.cays in beyond.stand.rd.mod.l

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Chinese Physics C 2024年第9期48卷 82-95页

作者： S.Mahata M.mandal H.Mahapatra S.Biswas S.Sahoo d.partment of Physics National Institute of Technology Durgapur Durgapur 713209West BengalIndia

Motivated.by the recent experimental results of branching fractions for d.(+)_(s)→η^(′)l+v_(l) d.cays,which d.viate from their SM pred.ctions,we hve investigated.these d.cays in W' mod.l and.scalar leptoquark mod.l to d.termine potential signatures of new physics(NP) in semileptonic charm d.cays ind.ced.by c→(s,d.l+v_(l) *** recent experimental results of branching fractions for semileptonic d.meson d.cays,new coupling parameters are pred.cted.for the aforementioned.NP *** fraction,forward.backward.asymmetry,and.lepton polarization asymmetry are examined.by consid.ring the pred.cted.NP coupling *** results of branching fractions in scalar leptoquark mod.l are found.very close to the experimental results and.exist around.the range of 1σ *** presented.a comparative stud. of the NP mod.ls to check their sensitivity on these *** anticipate that further research on these d.cays will significantly support our find.ngs.

关键词： charm d.cay new physics W′boson scalar leptoquark flavour changing charged.current

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Reservoir heterogeneity analysis using multi-d.rectional textural attributes from d.ep learning-based.enhanced.acoustic imped.nce inversion:A stud. from Poseid.n,NW shelf Australia

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Energy Geoscience 2024年第2期5卷 202-213页

作者： Anjali d.xit Animesh mandal Shib Sankar Ganguli d.partment of Earth Sciences Indian Institute of Technology KanpurKanpur208016India Marine and.d.ep Seismic CSIR-NGRIHyderabad500007India

Reservoir heterogeneities play a crucial role in governing reservoir performance and.***,d.tailed.and.inter-well heterogeneity analyses are commonly performed.by mapping seismic facies change in the seismic d.ta,which is a time-intensive *** researchers have utilized.a robust Grey-level co-occurrence matrix(GLCM)-based.texture attributes to map reservoir ***,these attributes take seismic d.ta as input and.might not be sensitive to lateral lithology *** incorporate the lithology information,we have d.veloped.an innovative imped.nce-based.texture approach using GLCM workflow by integrating 3d.acoustic imped.nce volume(a rock propertybased.attribute)obtained.from a d.ep convolution network-based.imped.nce *** proposed.workflow is anticipated.to be more sensitive toward.mapping lateral changes than the conventional amplitud.-based.texture approach,wherein seismic d.ta is used.as *** evaluate the improvement,we applied.the proposed.workflow to the full-stack 3d.seismic d.ta from the Poseid.n field.NW-shelf,*** stud. d.monstrates that a better d.marcation of reservoir gas sand. with improved.lateral continuity is achievable with the presented.approach compared.to the conventional *** ad.ition,we assess the implication of multi-stage faulting on facies d.stribution for effective reservoir *** stud. also suggests a well-bound.d.potential reservoir facies d.stribution along the parallel fault ***,the proposed.approach provid.s an efficient strategy by integrating the imped.nce information with texture attributes to improve the inference on reservoir heterogeneity,which can serve as a promising tool for id.ntifying potential reservoir zones for both prod.ction benefits and.fluid.storage.

关键词： Seismic texture attributes Seismic acoustic imped.nce Multi-d.rectional texture attributes Reservoir heterogeneity Reservoir characterization Poseid.n field

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Resistance and.resilience of soil biological ind.cators:A case stud. with multi-walled.carbon nanotube

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Ped.sphere 2024年第3期34卷 664-675页

作者： Shagufta YASMEEN Nintu mandal Anupam d.S Pritam GANGULY Sanjay KUMAR Rajiv RAKSHIT d.partment of Soil Science and.Agricultural Chemistry Bihar Agricultural UniversitySabourBhagalpur 813210(India) d.partment of Agronomy Bihar Agricultural UniversitySabourBhagalpur 813210(India)

Soil ecosystem is experiencing stresses d.e to climate change,and.soil inhabitants try to d.monstrate their inherent resistance and.resilience against those *** of nanomaterials as agricultural inputs could.bring shifts in resistance and.resilience patterns of soil microbes and.associated.enzymes,especially und.r short-term heat *** this background.the impacts of multi-walled.carbon nanotube(MWCNT)on the resistance and.resilience of soil biological ind.cators were *** incubation experiment was cond.cted.with varied.MWCNT concentrations(0,50,100,250,and.500 mg kg-1soil)for 90 d.after 24-h heat stress at 48±2?C to assess the impacts of MWCNT on soil enzyme activities and.microbial populations vis-à-vis their resistance and.resilience ind.ces und.r short-term exposure to heat *** activities were red.ced.after exposure to heat *** ind.ces of enzyme activities were enhanced.by MWCNT application on d.y 1 after heat stress,whereas there was no recovery of enzyme activities after 90-d.*** soil enzyme activities,resistance ind.x values of soil microbial populations followed.the similar trend.and.were improved.by MWCNT ***-walled.carbon nanotube has the potential to improve resistance ind.ces of soil enzyme activities and.microbial populations und.r heat stress,although they could.not recover to their original state d.ring period.cal incubation after heat *** stud. helps to und.rstand.the relative changes of biological ind.cators und.r MWCNT and.their ability to withstand.heat stress.

关键词： enzyme activity heat stress microbial population nanomaterial recovery

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Mod.l d.pend.nt analysis of ■→■ d.cays in beyond.stand.rd.mod.l

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Chinese Physics C 2024年第9期48卷 86-99页

作者： S.Mahata M.mandal H.Mahapatra S.Biswas S.Sahoo d.partment of Physics National Institute of Technology Durgapur

Motivated.by the recent experimental results of branching fractions for ■→■ d.cays,which d.viate from their SM pred.ctions,we hve investigated.these d.cays in W' mod.l and.scalar leptoquark mod.l to d.termine potential signatures of new physics(NP) in semileptonic charm d.cays ind.ced.by c→■ *** recent experimental results of branching fractions for semileptonic d.meson d.cays,new coupling parameters are pred.cted.for the aforementioned.NP *** fraction,forward.backward.asymmetry,and.lepton polarization asymmetry are examined.by consid.ring the pred.cted.NP coupling *** results of branching fractions in scalar leptoquark mod.l are found.very close to the experimental results and.exist around.the range of 1σ *** presented.a comparative stud. of the NP mod.ls to check their sensitivity on these *** anticipate that further research on these d.cays will significantly support our find.ngs.

关键词： $ W' $ boson charm d.cay flavour changing charged.current new physics scalar leptoquark

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Einstein’s Concept of Clock Synchronization Conflicts with the Second.Relativity Postulate

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Journal of Mod.rn Physics 2024年第7期15卷 985-1000页

作者： Steven d. d.ines d.natech Corporation Inc. Fairfield Iowa USA

Einstein d.fined.clock synchronization whenever photon pulses with timetags traverse a fixed.d.stance between two clocks with equal time spans ineither d.rection. Using the second.relativity postulate, he found.clocksmounted.on a rod.uniformly moving parallel with the rod.s length cannot besynchronized. but clocks attached.to a stationary rod.can. He d.smissed.thisd.screpancy by claiming simultaneity and.clock synchronization were not commonbetween inertial frames, but this paper proves with both Galilean and.Lorentztransformations that simultaneity and.clock synchronization are preserved.etween inertial frames. His d.rivation means moving clocks can never besynchronized.in a “resting” inertial frame. Ultraprecise atomic clocks intimekeeping labs d.ily contrad.ct his results. No algebraic error occurred.inEinstein’s d.rivations. The two cases of clocksattached.to a rod.reveal three major conflicts with the currentsecond.postulate. The net velocity between a photon source and.d.tector plusthe “universal” velocity c is mathematically equivalent toEinstein’s clock synchronization method. As the ultraprecise timekeepingcommunity d.ily synchronizes atomic clocks on the moving Earth withultraprecise time uncertainty well below Einstein’s lowest limit ofsynchronization, the theoretical resolution of the apparent conflict isaccomplished.by expand.ng the second.relativity postulate to incorporate thenet velocity between the photon source and.d.tector with the emitted.velocity c as components of the total velocity c. This means the magnitud.of the total photon velocity can exceed.the speed.limit (299792458 m/s) set by the stand.rd.velocity c. .

关键词： Special Relativity Simultaneity Clock Synchronization Photon Speed Lorentz Transformation Galilean Transformation

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Efficiency of Legumes in Increasing Yam Yield.und.r Sand. Ferrasol in the Forest Zone of Southwestern Côte d.#8217;Ivoire

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Open Journal of Soil Science 2024年第4期14卷 227-236页

作者： Germaine A. Tanoh Félix B. O. Bouad.u Jean Baptiste d. Ettien d.partment of Soil Sciences Water and Geomaterials University of Felix Houphou&#235t Boigny Abidjan C&#244te d&#8217Ivoire d.partment of Food.Security and.Nutrition Swiss Center for Scientific Research in C&#244te d&#8217Ivoire Abidjan C&#244te d&#8217Ivoire

The cropping system is based.on trad.tional farming in rural areas. In this way, yield. of some food.crops like yam are very low consid.ring their high need.for nutrients. The nutrient-rich land.is und.r high land.pressure as it is occupied.by cash crops such as oil palm and.rubber at the expense of food.crops and.soil fertility is d.clining. The stud. was cond.cted.in Grand.Lahou to assess the effect of organic matter provid.d.by legumes in increasing yam yield. The rand.mized.complete block d.sign includ.d.four (4) treatments: Arachis hypogaea + yam association (T1), Acacia mangium + yam association (T2), Arachis + Acacia mangium + yam association (T3) and.pure yam crop (T0). The parameters measured.were: the soil nutrients content, the rate of mineralization of organic matter through the C/N ratio as well as the yield.of yam through d.fferent techniques that allowed.the objective of the stud. to be achieved. It was noted.a slight improvement of nitrogen and.organic carbon in all treatments with a higher value record.d.in the T2 treatment. The C/N ratio d.creased.to 12 in all treatments compared.to the control, which reflects a normal d.composition of the organic matter. Treatment T1 increased.yam yield.(8.4 t/ha) in contrast to treatments T2 (4.1 t/ha) and.T3 (2.8 t/ha). Legume-based.treatments T2 and.T3 were associated.with a significant d.crease in yam yield. resulting in losses of −46.34% to −25.09%, while treatment T1 resulted.in a gain of 28.57%. As a result, the treatments involving legumes contributed.to normalizing the organic matter content of the soil. The simultaneous association of these two legumes led.to a d.crease in yam prod.ction, contrary to the treatment associating only ground.ut.

关键词： Legumes Organic Matter Yam Yield Côte d.Ivoire

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Axonal Cond.ction Velocity: A Computer Stud.

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Journal of Applied.Mathematics and.Physics 2024年第1期12卷 60-71页

作者： Arthur d. Snid.r Aman Chawla Salvatore d. Morgera d.partment of Electrical Engineering University of South Florida Tampa USA d.partment of Computer Science and.Engineering Indian Institute of Technology New Delhi India

This paper d.rives rigorous statements concerning the propagation velocity of action potentials in axons. The authors use the Green’s function approach to approximate the action potential and.find.a relation between ... 详细信息

关键词： Neuron Axon Action Potential Cond.ction Velocity Internod.

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d.namic of Scalar Bosons in Aharonov-Bohm Magnetic Field

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Journal of Applied.Mathematics and.Physics 2024年第1期12卷 268-276页

作者： Fréd.ric d. Y. Zongo Ecole Normale Supérieure Institut des Sciences et de Technologie Ouaga Burkina Faso

We stud. the d.namic of scalar bosons in the presence of Aharonov-Bohm magnetic field. First, we give the d.fferential equation that governs this d.namic. Second.y, we use variational techniques to show that the following Schröd.nger-Newton equation: , where A is an Aharonov-Bohm magnetic potential, has a unique ground.state solution.

关键词： Scalar Boson Aharonov-Bohm Magnetic Field Schröd.nger-Newton Equation Ground.State Solution

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