Tập 3 Số 04 (2025): HPU2 Journal of Sciences: Natural Sciences and Technology

Bài viết

• On the spectral radius of bipartite graphs with bounded partite sets

  Phi-Dung Hoang

  3

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• A finiteness theorem for ends of weighted manifolds with a weighted Poincaré inequality

  Tuan-Dung Ha

  11

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• The synthesis of TiO2 nanosheets and their outperformance in the photocatalytic degradation of methylene blue

  Duc-Nam Cao, Ba-Trang Doan, Van-Tuan Mai, Dinh-Lam Nguyen, Duy-Khanh Nguyen, Minh-Quy Bui, Xuan-Dung Mai

  26

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• The sequential Cohen-Macaulayness of idealizations

  Van-Loc Phan, Minh-Son Doan

  34

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• An identification problem governed by nonlinear fractional mobile-immobile equation, Part II: Stability and Regularity

  Van-Dac Nguyen, Thi-Thu Tran, Van-Tuan Tran

  42

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• Study on content of hydrophilic silica from rice husk in reinforced deproteinized natural rubber materials

  Dai-Luat Tran, Manh-Thang Tran, Thi-Hang Le, Van-Hoang Nguyen, Thanh-Binh Bui Thi, Nhat-Trang Nguyen, Hong-Nhung Le Thi, Trung-Nghia Phan

  51

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• The efficient and mild synthesis of phenacyl bromide via bromination using N-bromosuccinimide catalyzed by brønsted acidic ionic liquid under ultrasound irradiation

  Cong-Thang Duong, Minh-Duong Ho, Que-Tran Tran Thi, Xuan-Thi Luu Thi

  64

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• Genetic diversity of Shan tea (Camellia sinensis var. assamica) from Cao Son Commune, Lao Cai province using RAPD-PCR

  Thuy-Lien Bui, Thi-Thuong Ngo, Xuan-Phong Ong, Van-Thiep Nguyen, Thi-Xuyen Ngo, Viet-Hong Laa

  72

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• Quadratic programming and quadratically constrained quadratic programming: theory, algorithms, and applications

  Kim-Thuy Dinh Thi

  80

• Phase transitions and thermodynamic properties of the reissner-nordström black hole in (n + 1) dimensional spacetime

  Van-Quyet Hoang, Khanh-Linh Nguyen, Thi-Trang Nguyen

  97

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