Results 41 to 50 of about 339 (228)

Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Model optimization of structural layout parameters of a flexible subsoiler

Технічна інженерія
Prolonged basic cultivation of agricultural soils leads to the formation of a compacted subsoil layer, commonly known as the plow sole. The presence of this over-compacted layer disrupts the soil’s water-air regime, impairs nutrient uptake by crops, and ...
O.V. Medvedskyi, B.A. Sheludchenko, P.M. Zabrodskyi, E.S. Syroid, O.B. Pluzhnikov, V.A. Yanovsky   +5 more
doaj   +1 more source

Government affiliation and innovation in emerging market firms: The role of international diversification

Global Strategy Journal, EarlyView.
Abstract Research Summary This study examines how international diversification interacts with government affiliation to shape innovation outcomes in emerging market firms. We reconceptualize government affiliation as a resource‐structuring mechanism that varies across hierarchical levels and influences the coherence of firms' dominant logics of ...
Danielle R. Combs, Fiona Kun Yao, Chunlin Liu, Ting Xiao   +3 more
wiley   +1 more source

Demanda energética na subsolagem realizada antes e depois de diferentes sistemas de preparo periódico do solo Energy demand in the subsoiling performed before and after different systems of periodic soil tillage

Ciência Rural, 2009
A subsolagem é uma das operações mecanizadas de elevado custo e demanda energética por área, tradicionalmente utilizada pelos agricultores antes do preparo do solo na descompactação de camadas adensadas. Este trabalho teve como objetivo avaliar a demanda
Nilson Salvador, Sérgio Hugo Benez, Renildo Luiz Mion   +2 more
doaj   +1 more source

EFFECT OF THE DISTANCES BETWEEN SUBSOILER PLOW TINES BILATERAL AND PENETRATION ANGLES ON SOME PERFORMANCE INDICATORS FIELD [PDF]

Mesopotamia Journal of Agriculture, 2019
The research was implemented in a field of agriculture college- Mosul Univ., which its soil texture is clay. The study included the use of three penetration angles of subsoiler plow tines bilateral 30 and 40 and 50 degree and three distances between ...
Adel Abdullah, Yousif Y. Hilal
doaj   +1 more source

Perennial Legumes Pueraria phaseoloides and Leucaena leucocephala Exhibit High Potential for Fertility Restoration of Degraded Mined Soils in Ghana

Journal of Plant Nutrition and Soil Science, EarlyView.
Revegetating the subsoil layer of abandoned gold mined sites with the perennial legumes Leucaena Leucocephala, Pueraria phaseoloides and Gliricidia sepium without any soil amendments increases the content of soil organic carbon and important macro‐nutrients, which are crucial for restoring soil health and productivity. These improvements in soil health
Enoch Opoku, Beloved Mensah Dzomeku, John Opata, Adam Muhammad Adam, Frank Rasche   +4 more
wiley   +1 more source

Simulation of Draught Reduction Performance of Subsoiling with Upcutting Belt Motion Using Discrete Element Method

Applied Sciences
Conventional subsoiling has the problem of excessive draught resistance, which has long been a major concern. A great reduction in draught is urgently required to make better use of the subsoiling technique with many agronomic benefits. In this study, an
Peng Gao, Jinguang Li, Hongyan Qi, Xuanting Liu, Yunhai Ma   +4 more
doaj   +1 more source

Field Studies on the Influence of High‐Voltage Direct Transmission Underground Cables on Soils Along the SuedLink Route in Southwest Germany

Journal of Plant Nutrition and Soil Science, EarlyView.
During regular operation of the SuedLink at a load ≤75 %, the average increase in temperature in the plowing horizon is expected to be less than 1.6°C in the soils along the route in Southwest Germany. ABSTRACT Background The SuedLink was planned as a high‐voltage direct‐current underground cable route. The construction itself is a massive intervention
Joachim Ingwersen, Alexander Schade, Andreas Lehmann, Jonas Trenz, Maja Schreiber, Christoph Drefke, Harald Schramm, Christian Bidlingmaier, Simone Graeff‐Hönninger, Thilo Streck, Karl Wieland   +10 more
wiley   +1 more source

Selecting Promising Soil Quality Indicators for Monitoring Soil Management Effects Based on 10 European Long‐Term Field Experiments

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background: Soil quality can be measured through soil quality indicators that reflect soil processes. Aim: The aim of this study was to (1) identify a limited set of soil quality indicators that are most sensitive to agricultural soil management and that are widely applicable regardless of pedo‐climatic conditions, and (2) link common ...
Giulia Bongiorno, Marie Wesselink, Wim van den Berg, Zhanguo Bai, Ron de Goede, Carla Sofia Santos Ferreira, Luuk Fleskens, Matjaz Glavan, Wiepie Haagsma, Paul Mäder, Alicia Morugan‐Coronado, Harry Verstegen, Zoltan Toth, Wijnand Sukkel, Else K. Bünemann   +14 more
wiley   +1 more source

DEVELOPMENT AND PERFORMANCE EVALUATION OF THE DOUBLE TINES SUBSOILER IN SILTY CLAY SOIL PART 1: DRAFT FORCE, DISTURBED AREA AND SPECIFIC RESISTANCE [PDF]

Mesopotamia Journal of Agriculture, 2014
The objectives of this investigation were to investigate the effects of plowing depths (D) (35, 45, 55, and 65 cm), forward speeds (S) (0.341, 0.551 and 0.761 m sec-1) and outfitted subsoiler foot with wings on equipment performance for two subsoiler ...
doaj   +1 more source