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Qadir Bux alias Imran Latif,Ismail Abdul Rahman,Ahmad Mujahid Ahmad Zaidi,Kamran Latif 대한토목학회 2015 KSCE JOURNAL OF CIVIL ENGINEERING Vol.19 No.1
Penetration is the basic element of designing protective concrete structure against the local impact damage of hard missile. Impactenergy is the dominant cause of damage in moving accidents. When hard projectile collides with concrete target, it is the impactenergy of the projectile that makes concrete target to deform. Therefore, it is vital to study critical impact energy required to causespenetration. An analytical model is developed to predict the required critical impact energy for maximum penetration without reareffects in concrete slabs when it is impacted with hard projectile. The nose shape factor Ni also has been introduced with inclusion ofempirical friction factor Nf, as modification in Chen & Li nose shape factor for ogive nose hard projectile. The newly developedanalytical model and nose shape factor Ni is examined for CRH = 2.0, CRH = 3.0, and CRH = 4.25. It was found that the predictedresults from analytical model with nose shape Ni are in close relation with experimental data in all cases as compared to predictedresults with traditional Li and Chen nose shape N*. In, General, the analytical model generates encouraging prediction which isconsistent and follows a general trend of experimental results.
China-U.S. Maritime Competition: Destined for Strategic Miscalculations?
( Ahmed Bux Jamali ),( Hongsong Liu ) 한국국방연구원 2021 The Korean Journal of Defense Analysis Vol.33 No.4
The paper evaluates the key factors that have predominantly increased the maritime competition between the United States and China. The authors argue that, due to the diverging naval interests in the South and the East China Seas and the growing competition to acquire maritime security technology, the momentum of maritime rivalry has immensely escalated between the two states. Based on strategic maneuverability in maritime security, this paper evaluates the rising strategic ambiguity posed by China’s anti-access area-denial (A2/AD) system vis-à-vis the United States. It further illustrates U.S. All Domain Operation (ADO) and China’s rapid emergence as a maritime competitor in Asia. The evaluation demonstrates the repercussions of miscalculations and highlights that the perceived mutual rivalry has come to the point that both sides are muddling through the dynamics of misperception and security-dilemma scenario which has increased the likelihood of strategic miscalculations.
India's Indo‐Pacific Strategy: A Pragmatic Balancing between the United States and China
Liu Hongsong,Jamali Ahmed Bux 인하대학교 국제관계연구소 2021 Pacific Focus Vol.36 No.1
Despite having differing foreign policy objectives against the core Indo‐Pacific fundamentals, Prime Minister Modi is constructing a robust, proactive, and influential role of India in the Indo‐Pacific region without formally aligning with the United States or gesturing for any confrontational behavior against China. To unfold India's Indo‐Pacific positioning, this paper asks how India behaves between the United States and China in the Indo‐Pacific. The authors argue that to address this, Modi's Indo‐Pacific strategy revolves around Pragmatic Balancing between the United States and China in the Indo‐Pacific. The paper highlights Modi's Indo‐Pacific ambitions to explore this pragmatic balancing, keeping in view the US Indo‐Pacific strategy. To deal with the United States on the geostrategic front, ensuring maximum strategic autonomy and building India's maritime security order in the Indian Ocean region are Modi's crucial policy outlooks. On the other hand, to deal with China on the geo‐economics front, maintaining the maritime economy's flow, thereby preventing any confrontational behavior with China on multilateralism, is the critical component of Modi's Indo‐Pacific strategy. The evaluation demonstrates Modi's pragmatism by redefining India's balancing behavior with the United States and China to achieve the desired foreign policy outcomes, before presenting the article's final conclusion.
Li Shyan Ch’ng,Shaik Ismail Bux,Chong Kin Liam,Nazarina Abdul Rahman,Choon Yan Ho 대한영상의학회 2013 Korean Journal of Radiology Vol.14 No.5
Pulmonary alveolar microlithiasis (PAM) is a rare chronic disease with paucity of symptoms in contrast to the imaging findings. We present a case of a 24-year-old Malay man having an incidental abnormal pre-employment chest radiograph of dense micronodular opacities giving the classical “sandstorm” appearance. High-resolution computed tomography of the lungs showed microcalcifications with subpleural cystic changes. Open lung biopsy showed calcospherites within the alveolar spaces. The radiological and histopathological findings were characteristic of PAM.
Kok Beng Loh,Shaik Ismail Bux,Basri Johan Jeet Abdullah,Raja Amin Raja Mokhtar,Rosmawati Mohamed 대한영상의학회 2012 Korean Journal of Radiology Vol.13 No.5
Local treatment for hepatocellular carcinoma (HCC) has been widely used in clinical practice due to its minimal invasiveness and high rate of cure. Percutaneous radiofrequency ablation (RFA) is widely used because its treatment effectiveness. However, some serious complications can arise from percutaneous RFA. We present here a rare case of hemorrhagic cardiac tamponade secondary to an anterior cardiac vein (right marginal vein) injury during RFA for treatment of HCC.
Mahmoud Nasr,Ahmed Tawfik,Masaaki Suzuki,Sheena Kumari,Faizal Bux 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.21 No.1
Hydrogen production from starch wastewater via sequential dark-photo fermentation process wasinvestigated. Two anaerobic baffled reactors (ABRs) were operated in parallel at an OLR of 8.11 0.97 g-COD/L/d, and a HRT of 15 h. ABR-1 and ABR-2 was inoculated with pre-treated sludge and sludgeimmobilized on maghemite nanoparticles, respectively. Better hydrogen yield of 104.75 12.39 mL-H2/g-COD-removed was achieved in ABR-2 as compared to 66.22 4.88 mL-H2/g-COD-removed in ABR-1. Theeffluent of ABR-2 was used for further hydrogen production by photo fermentation in ABR-3. An overallhydrogen yield of 166.83 27.79 mL-H2/g-COD-removed was achieved at a total HRT of 30 h. 16S rRNAphylogeny showed that Clostridium and Rhodopseudomonas palustris species were dominant in ABR-1, ABR-2and ABR-3, respectively.
ST Reliability and Connectivity of VANETs for Different Mobility Environments
( Hussain Saajid ),( Wu Di ),( Sheeba Memon ),( Naadiya Khuda Bux ) 한국인터넷정보학회 2019 KSII Transactions on Internet and Information Syst Vol.13 No.5
Vehicular ad-hoc network (VANET) is the name of technology, which uses ‘mobile internet' to facilitate communication between vehicles. The aim is to ensure road safety and achieve secure communication. Therefore, the reliability of this type of networks is a serious concern. The reliability of VANET is dependent upon proper communication between vehicles within a given amount of time. Therefore a new formula is introduced, the terms of the new formula correspond 1 by 1 to a class special ST route (SRORT). The new formula terms are much lesser than the Inclusion-Exclusion principle. An algorithm for the Source-to-Terminal reliability was presented, the algorithm produced Source-to-Terminal reliability or computed a Source-to-Terminal reliability expression by calculating a class of special networks of the given network. Since the architecture of this class of networks which need to be computed was comparatively trivial, the performance of the new algorithm was superior to the Inclusion-Exclusion principle. Also, we introduce a mobility metric called universal speed factor (USF) which is the extension of the existing speed factor, that suppose same speed of all vehicles at every time. The USF describes an exact relation between the relative speed of consecutive vehicles and the headway distance. The connectivity of vehicles in different mobile situations is analyzed using USF i.e., slow mobility connectivity, static connectivity, and high mobility connectivity. It is observed that p<sub>c</sub> probability of connectivity is directly proportional to the mean speed μ<sub>ν</sub> till specified threshold μ<sub>τ</sub>, and decreases after μ<sub>τ</sub>. Finally, the congested network is connected strongly as compared to the sparse network as shown in the simulation results.
Effects of Technological, Organizational, and Environmental Factors on Social Media Adoption
QALATI, Sikandar Ali,LI, Wenyuan,VELA, Esthela Galvan,BUX, Ali,BARBOSA, Belem,HERZALLAH, Ahmed Muhammad Korea Distribution Science Association 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.10
Electronic commerce is becoming a significant hub for sourcing products/services which helps organizations to connect with potential customers and gain competitive advantages, though little empirical work focuses on small businesses operating in developing countries to date. Increasingly, companies are looking to utilize social media to connect with stakeholders and pursue several benefits. This study aims to investigate the technological, organizational, and environmental (TOE) factors that influence small- and medium-sized enterprises' (SMEs) social media (SM) adoption in developing countries. This study used a closed-ended questionnaire to collect data from randomly-selected respondents (owners, executives, and managers) from SMEs in Pakistan. SMART PLS version 3.2.8 was used for path analysis of 316 responses and for structural equation modeling. The research findings include the direct influence of TOE factors (relative advantage, interactivity, visibility, top management support, and institutional pressure) on SMEs' SM adoption, and in turn SM adoption also has a positive influence on SMEs performance. Moreover, the coefficient of determination of the study showed that 77.7% of the variation in SM adoption occurs because of TOE factors and 29.8% variation in SMEs occurred because of SM adoption. This paper has implications for practitioners and scholars interested in exploring the SM adoption and usage by SMEs.