Results 201 to 210 of about 34,337 (295)

Study on crack propagation law of overlying strata in the process of small coal pillar mining in inclined extra-thick coal seam. [PDF]

Sci Rep
Lu W, Zhao P, Jin Q, Jin H, Li S, Bai J.
europepmc   +1 more source

Dread in the Homeland: Symbolic Politics and Ethnonationalist Struggles for Self‐Determination in Nigeria

Nations and Nationalism, EarlyView.
ABSTRACT The revival of Biafran separatism in contemporary Nigeria is often explained with three leading theoretical frameworks: relative deprivation, political economy and state repression. Whereas relative deprivation and political economy perspectives posit that the resurgent separatism derives from the perception and empirical reality of ...
Promise Frank Ejiofor
wiley   +1 more source

Research on the predicted height of water-conducting fracture zones based on the BO-RFR model and SHAP analysis. [PDF]

Sci Rep
Qiu M, Wen Y, Teng C, Shi M.
europepmc   +1 more source

Improved SURF−FLANN feature extraction and matching algorithm for video stitching of fully-mechanized working face

Meitan xuebao
The SURF (Speed Up Robust Features) feature extraction algorithm and FLANN (Fast Library or Approximate Nearest Neighbors) feature matching algorithm in current video stitching technology have the problems of feature point extraction errors and low feature point matching accuracy in harsh environments of fully-mechanized working face.
Qinghua MAO, Menghan WANG, Xin HU, Jiao ZHAI   +3 more
openaire   +1 more source

Three Decades of China's Bt Cotton: Achievements and Insights

Plant Biotechnology Journal, EarlyView.
ABSTRACT Cotton is a vital natural fibre crop with significant economic value worldwide. In response to the threat of cotton bollworm (Helicoverpa armigera), the China government initiated a research project in 1992 to develop transgenic Bacillus thuringiensis (Bt) cotton.
Zhigang Meng, Xiufeng Han, Guangqin Yang, Yuan Wang, Yi Zhou, Qi Zhou, Yanyan Li, Tao Zhou, Sandui Guo, Shuangxia Jin, Chengzhen Liang   +10 more
wiley   +1 more source

Research on the law of multiple mining in close coal seams and the roadway support of lower coal seam. [PDF]

Sci Rep
Wu X, Guo L, Sun Y, Wu X, Zhang N.
europepmc   +1 more source

Due Diligence Regulation and Sustainability Governance in Value Chains: Lessons From the South African Wine Sector

Regulation &Governance, EarlyView.
ABSTRACT A recent raft of due diligence regulation (DDR) addressing social and environmental conditions in global value chains (GVCs) has spread across the UK and Europe. An emerging literature on DDR highlights the politics of its formation. Yet, we know little about how existing sustainability governance along GVCs interacts with DDR or the wider ...
Matthew Alford, Reena das Nair, Margareet Visser, Stefano Ponte, Shingie Chisoro   +4 more
wiley   +1 more source

Numerical Investigation of Gas Migration and Spatiotemporal Evolution in Y‑Type Ventilation Working Faces with Gob-Side Entry Retaining Using COMSOL. [PDF]

ACS Omega
Zhai Y, Yang Y, Wu L, Yang W, Liu S, Li L, Lei J.   +6 more
europepmc   +1 more source

How Input Subsidies Boost Food Security in Developing Countries: Micro‐Level Evidence From Zambia

Review of Development Economics, EarlyView.
ABSTRACT While previous studies have examined the effects of input subsidies on income and yields, we study their impact on food security, measured through household dietary diversity, a key dimension of nutritional well‐being—examined across specific pathways.
Terence Jude Wood, John N. Ng'ombe, Stephen Prah, Victoria G. Tanoh   +3 more
wiley   +1 more source

Abnormal Pressure Event Recognition and Dynamic Prediction Method for Fully Mechanized Mining Working Face Based on GRU-AM. [PDF]

Sensors (Basel)
Qin K, Shu L, Chen Z, Zhao Y, Li Y.
europepmc   +1 more source