Results 151 to 160 of about 294,743 (244)

Analisa Keruntuhan Bendungan Gondang Dengan Menggunakan Program Zhong Xing HY21

open access: yesJurnal Teknik Pengairan, 2014
Dam failure occured due to overtopping and piping. This can lead to rapid propagatioin of water flow so inundated the downstream of the dam. The purpose of this study was to analyze the various scenarios for the dam break.
Eric Virgiawan Aryadi   +3 more
doaj  

Nghiên cứu qui trình sản xuất bột dinh dưỡng từ đậu nành nảy mầm [PDF]

open access: yes, 2018
6 tr.Đậu nành nảy mầm chứa nhiều thành phần dinh dưỡng quan trọng, cần thiết cho con người. Việc sản xuất ra bột dinh dưỡng đã nâng cao giá trị cho sản phẩm. Qui trình sản xuất ảnh hưởng rất nhiều đến chất lượng bột dinh dưỡng từ đậu nành nảy mầm. Để đậu
Lê, Thị Thêm, Trần, Đình Mạnh
core   +1 more source

Characterization of the permeability evolution of hard and soft rocks under hydro‐mechanical coupling conditions

open access: yesDeep Underground Science and Engineering, EarlyView.
The permeability variation of rocks during complete stress–strain processes was investigated. A mathematical model describing the influence of rock damage on permeability was constructed. The permeability–stress relationship between soft rock and hard rock was proposed.
Zhen Huang   +6 more
wiley   +1 more source

A review on rockburst prediction and prevention to shape an ontology‐based framework for better decision‐making for underground excavations

open access: yesDeep Underground Science and Engineering, EarlyView.
A scientometric analysis of 2449 journal articles and a comprehensive review of 336 papers were conducted, discussing and identifying challenges and research gaps in rockburst prediction and prevention and proposing an ontology‐based framework for better decision‐making in underground excavations. Abstract With underground engineering projects becoming
Hongchuan Yan   +6 more
wiley   +1 more source

XÁC ĐỊNH MỨC ĐỘ CỐ ĐỊNH ĐẠM SINH HỌC CỦA BURKHOLDERIA SP. KG1 VÀ PSEUDOMONAS SP. BT1 TRÊN CÂY LÚA CAO SẢN OM2517 TRỒNG NGOÀI ĐỒNG [PDF]

open access: yes, 2013
Thí nghiệm ngoài đồng được thực hiện để đánh giá khả năng cố định đạm của 2 chủng vi khuẩn Pseudomonas sp. BT1 và Burkholderria sp. KG1 trên cây lúa cao sản OM2517 trồng trên đất phù sa tại nông trường Sông Hậu ? Cần Thơ vào vụ Hè Thu 2011.
Cao Ngọc Điệp, Ngô Thanh Phong
core   +1 more source

Permeability of granite from a shallow buried mountain pipe gallery tunnel under unloading confining pressure

open access: yesDeep Underground Science and Engineering, EarlyView.
Triaxial compression tests under unloading confining pressure conditions were conducted to systematically analyze the permeability behavior of granite retrieved from the different classification surrounding rocks. Abstract The rock mass within mountain tunnels undergoes complex changes in permeability, strength, and deformation during tunneling ...
Xiaoyan Zhang   +4 more
wiley   +1 more source

Dynamic tensile strength and fracture evolution of characteristic shale with bedding and hole using linear regression theory

open access: yesDeep Underground Science and Engineering, EarlyView.
The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai   +7 more
wiley   +1 more source

ẢNH HƯỞNG CỦA KỸ THUẬT TƯỚI LUÂN PHIÊN LÊN SỰ KHOÁNG HÓA ĐẠM CỦA ĐẤT PHÙ SA TRỒNG LÚA Ở ĐỒNG BẰNG SÔNG CỬU LONG [PDF]

open access: yes, 2012
Mục tiêu của nghiên cứu là xác định ảnh hưởng của chế độ tưới ngập liên tục và khô ngập luân phiên lên sự khoáng hóa đạm và tiềm năng nitrate hóa từ đất lúa ngập nước.
Khương Nguyễn Quốc   +3 more
core   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh   +12 more
wiley   +1 more source

Patterns of understorey bird diversity across Amazonian forests: survey effort and range maps predict local species richness

open access: yesEcography, EarlyView.
Species diversity typically increases from higher to lower latitudes, but the regional‐scale variation along this geographic gradient remains unclear. It has been suggested that species diversity throughout Amazonia generally increases westward toward the Andes, but this pattern and its environmental determinants require further investigation for most ...
Pilar L. Maia‐ Braga   +14 more
wiley   +1 more source

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