Results 41 to 50 of about 7,045 (264)

Rubber plant root properties induce contrasting soil aggregate stability through cohesive force and reduced land degradation risk in southern China [PDF]

open access: yesSOIL
In southern China, the island of Hainan faces land degradation risks due to a combination of soil physical, chemical, and climatic factors: soil physical properties like a high proportion of microaggregates (<0.25 mm), chemical properties such as low ...
W. Ali   +9 more
doaj   +1 more source

Application of the FDEM Based on the CZM in Simulating Three-Point Bending Test of Frozen Soil

open access: yesAtmosphere, 2022
The combined finite–discrete element method (FDEM) based on the cohesive zone model (the CZM) achieves cracking simulation by inserting cohesive elements between solid elements.
Yongtao Wang   +6 more
doaj   +1 more source

Friction between Cohesive Soils and Steel

open access: yesSoils and Foundations, 1993
ABSTRACT Laboratory tests on friction between cohesive soils and mild steel were carried out using a direct simple shear type of test apparatus. The cohesive soils were normally consolidated Kawasaki clay and four kinds of normally consolidated sand-clay mixtures. All tests were carried out under consolidated drained shear condition.
TSUBAKIHARA, YASUNORI   +2 more
openaire   +2 more sources

Climate Change Threatens Micronutrient Density of European Winter Wheat

open access: yesAdvanced Science, EarlyView.
Micronutrients are vital for human health. Wheat is a major staple crop and a significant source of minerals and B‐vitamins. The impact of climate change on their content remains largely unknown. We evaluated micronutrient levels in European winter wheat grown under historical and projected climate conditions. Our findings indicate that future climates
Da Cao   +17 more
wiley   +1 more source

A Method for Calculating the Cohesive Force of Uniform Cohesion Soil

open access: yes工程科学与技术, 2019
Cohesive force is an important mechanical parameter of cohesive soil, and the density and void ratio of soil are important factors affecting its cohesion, but the cohesion force of cohesive soil is difficult to estimate, while its density and void ratio ...
Xianghui LI   +4 more
doaj  

Split Tensile Strength of Cohesive Soils

open access: yesSoils and Foundations, 1974
ABSTRACT The applicability of the split tensile test for the measurement of the tensile strength of cohesive soils is discussed. The results of unconfined compression tests and split tensile tests on cohesive soils compacted dry of optimum are presented.
RAMANATHAN, B., RAMAN, V.
openaire   +2 more sources

Cross Kingdom Metabolic Engineering Paradigm Elevating Sustainable Protein Production

open access: yesAdvanced Science, EarlyView.
ABSTRACT Confronting the dual crisis of escalating global protein demand and unsustainable agriculture necessitates transformative solutions. Here, we pioneer evolutionary insights from maize nitrogen optimization via asparagine synthetase (ASNS) to rewire metabolism in Pichia pastoris.
Yuanyuan Du   +4 more
wiley   +1 more source

Mapping the “Supply–Demand–Flow” of Ecosystem Services for Ecosystem Management in China

open access: yesAdvanced Science, EarlyView.
This study develops a “supply–demand–flow” framework clarifies how ecosystem services move between regions by distinguishing potential and actual supply and demand. Using integrated biophysical–socioeconomic modeling, nine services in China were mapped.
Yikun Zhang   +3 more
wiley   +1 more source

Two Routes to Land: Genomic Underpinnings of Parallel Aerial Egg Deposition in Aquatic Old‐World Pila and New‐World Pomacea (Ampullariidae)

open access: yesAdvanced Science, EarlyView.
Comparative genomics of Gondwana‐diverged Pila and Pomacea reveals parallel evolution of aerial oviposition. Convergent chromosomal rearrangements reshape regulatory landscapes within topologically associating domains. Lineage‐specific gene family expansions and viral‐derived perivitelline proteins (PV1) underpin desiccation resistance.
Yufei Zhou   +10 more
wiley   +1 more source

Comportamento físico de um argissolo acinzentado coeso no estado do Ceará Physical behavior of a gray cohesive argisol in Ceara State

open access: yesRevista Brasileira de Ciência do Solo, 2005
Em muitas partes do mundo, estuda-se o comportamento natural de um conjunto de solos que se torna duro, muito duro ou extremamente duro, quando seco, e friável, quando úmido.
Herdjania Veras de Lima   +3 more
doaj   +1 more source

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