ANALYTICAL RESULTS OF THE STABILITY OF SOME LIMESTONE ISLANDS IN HA LONG BAY, QUANG NINH PROVINCE OF VIETNAM, A WORLD NATURAL HERITAGE

Phi Truong Thanh

doi:10.26842/binhm.7.2019.15.4.0455

Details

Publication Date

Thu Dec 26 2019

Journal Name

Bulletin Of The Iraq Natural History Museum (p-issn: 1017-8678 , E-issn: 2311-9799)

Volume

15

Issue Number

4

DOI

10.26842/binhm.7.2019.15.4.0455

Choose Citation Style

Statistics

View publication

27

Abstract Views

741

Galley Views

1.37K

Statistics

ANALYTICAL RESULTS OF THE STABILITY OF SOME LIMESTONE ISLANDS IN HA LONG BAY, QUANG NINH PROVINCE OF VIETNAM, A WORLD NATURAL HERITAGE

Ha Long bay

Limestone

Plane failure

Stability

Vietnam

Phi Truong Thanh

...Show More Authors

The analytical results of the failure types of six limestone islands in the Ha Long bay of Vietnam have been identified. The calculated results of safety factor for 03 plane failure blocks lie within 0.9 and 2, have high potential failure. The analytical results have been also simulated these islands in three-dimensional space and have been also analyzed their potential failure on the fracture surfaces. The results obtained in this paper have important significance for planning and development of the Ha Long bay area, as World Natural Heritage, Quang Ninh province of Vietnam.

View Publication Preview PDF

Quick Preview PDF

Publication Date

Sun Jun 13 2021

Journal Name

International Journal Of Drug Delivery Technology

Synthesis, Characterization and Anticorrosion Studies of New Co(II), Ni(II), Cu(II), and Zn(II) Schiff Base Complexes

Schiff base

3-methoxysalicylaldehyde

Metal complexes

corrosion inhibition

enass

...Show More Authors

The research included preparation of new Schiff base (L) by two steps: preparation of precursor [bis(2-formyl-6-methoxyphenyl) succinate] (P) by reacting (3-methoxy salicyl aldehyde) with (succinoyl dichloride) as first step then react the prepared precursor (P) with (ethanethioamide) to have the new Schiff base [bis(2-((ethane thioyl imino) methyl)-6-methoxy phenyl) succinate] (L) as second step. Characterized compounds based on Mass spectra, 1 H, 13CNMR (for ligand (L)), FT-IR and UV spectrum, melting point, molar conduct, %C, %H, and %N, the percentage of the metal in complexes %M, magnetic susceptibility, while study corrosion inhibition (mild steel) in acid solution by weight loss. These measurements proved that by (Oxygen, Nitrogen, a

Publication Date

Fri Jul 12 2024

Journal Name

Biomass Conversion And Biorefinery

Chitosan-triphosphate/food grade algae/montmorillonite clay for adsorptive removal of methyl violet 2B dye removal: Behnken design optimization

Muna Sarhan

Ahlam M.

Ali H.

...Show More Authors

View Publication

(3)

Publication Date

Sun Jun 30 2024

Journal Name

International Journal Of Intelligent Engineering And Systems

Development of Intelligent Control Strategy for an Anesthesia System Based on Radial Basis Function Neural Network Like PID Controller

Ahmed Sabah

Khulood Eskander

Mohammed Najm

...Show More Authors

View Publication

(3)

Publication Date

Sat Dec 01 2012

Journal Name

Journal Of Economics And Administrative Sciences

ESTIMATION OF COEFFICIENTS AND SCALE PARAMETER FOR LINEAR (TYPE 1) EXTREME VALUE REGRESSION MODEL FOR LARGEST VALUES WITH APPLICATIONS

انحدار القيمة المتطرفة

معاملات الانحدار

معلمة القياس

المربعات الصغرى

الإمكان الأعظم

اختبار الرسم الاحتمالي

أزمنة البقاء

مرض ابيضاض الدم

درجات الحرارة العظمى

: Extreme value regression

The regression coefficient

Scale parameter

Least squares

Maximum likelihood

Probability plot test

Leukemia

Maximum grades temperature

فاطمة جاسم

عادل احمد

...Show More Authors

In this paper we estimate the coefficients and scale parameter in linear regression model depending on the residuals are of type 1 of extreme value distribution for the largest values . This can be regard as an improvement for the studies with the smallest values . We study two estimation methods ( OLS & MLE ) where we resort to Newton – Raphson (NR) and Fisher Scoring methods to get MLE estimate because the difficulty of using the usual approach with MLE . The relative efficiency criterion is considered beside to the statistical inference procedures for the extreme value regression model of type 1 for largest values . Confidence interval , hypothesis testing for both scale parameter and regression coefficients

View Publication Preview PDF

Publication Date

Sat Nov 19 2022

Journal Name

Journal Of Solid State Electrochemistry

Thermal, electrical and electrochemical properties of ionic liquid-doped poly(ethylene oxide)–LiTDI polymer electrolytes for Li-ion batteries

Anji Reddy

Aseel A.

Hussein Kh.

...Show More Authors

View Publication

(23)

(21)

Publication Date

Sun Feb 01 2026

Journal Name

Energy

Smart buildings envelope utilise triple PCM for offset and reduce peak load using deep clustering of multi-agent control

Raad Z.

Hayder I.

Amjad

Jasim M.

Mahmood A.

Farhan L.

Ahmed K.

Fadhel N.

Musatafa A.A.

Hussein

Nabeel S.

Zaher Mundher

...Show More Authors

(1)

Publication Date

Wed Aug 03 2022

Journal Name

Chemical Methodologies

Synthesis and Characterization of New 1,3,4-Thiadiazole Derivatives Containing Azo Group from Acid Hydrazide and Studying Their Antioxidant Activity

Zianab

Entesar

...Show More Authors

(15)

Publication Date

Sun Apr 12 2026

Journal Name

Experimental Heat Transfer

Thermal performance of open-cell copper metal foam heat sinks with different configurations and pore densities for electronics cooling

Suha Shather

Wail Sami

...Show More Authors

View Publication

Publication Date

Wed Apr 01 2020

Journal Name

Biochemical & Cellular Archives

SYNTHESIS, CHARACTERIZATION, ANTIOXIDANT, ANTICANCER HUMAN STUDIES AND BIOLOGICAL ACTIVITY OF MIXED LIGAND COMPLEXES USING SCHIFF BASE LIGAND AND HISTIDINE.

Lekaa K.A.

...Show More Authors

الوصف Mixed ligand complexes of Cu (II), Co (II) and Zn (II) with 2-((4-(1-(4-chlorophenylimino) ethyl) phenylimino) methyl) phenol (L) and histidine (His) have been prepared and diagnosed by ¹H and13 C NMR, FT-IR and electronic spectral data, thermal gravimetric, molar conductance and metal analysis measurements. The ligand (L) shows a bidentate nature and the coordination occurs through N and O atoms of imine group and phenol group respectively whereas (His) behave as tridentate ligand, coordinating through the-NH2 group and carboxylate oxygen group and N atoms of imidazole ring. The analytical studies for three complexes have shown octahedral structure. The anticancer activity was screened against human cancer cell such Follicular

Publication Date

Thu Jun 01 2017

Journal Name

Journal Of Huazhong University Of Science And Technology [medical Sciences]

New mini dental implant attachments versus O-ring attachment after cyclic aging: Analysis of retention strength and gap space

Abdalbseet A.

Ke

Ying-guang

...Show More Authors

View Publication

(2)

1 2 ... 2968 2969 2970 2971 ... 3061 3062