Digital Commons Network^™

Editor's Talk, Najwa Yanya Santiworakun

Halal Insight

No abstract provided.

Halal Food And Nutrition Alert Hafana (Pattani Office)

Halal Insight

No abstract provided.

The Halal Science Center, Chulalongkorn University, Chiang Mai Office

Halal Insight

No abstract provided.

Hsc External Scientific Affairs Service Unit

Halal Insight

No abstract provided.

Hsc Rewards

Halal Insight

No abstract provided.

Hsc Timeline

Halal Insight

No abstract provided.

Editor's Talk, Najwa Yanya Santiworakun

Halal Insight

No abstract provided.

"Cider Vinegar" And Technology For A New Trend Of Health Drink Production, Suwainah Sa-I

Halal Insight

No abstract provided.

A New Dimension Of Cannabis And Hemp In Cosmetics, Baddariyah Sohsansa

Halal Insight

No abstract provided.

How Does Firm Scope Depend On Customer Switching Costs? Evidence From Mobile Telecommunications Markets, Niloofar Abolfathi, Simone Santamaria, Charles Williams

Research Collection Lee Kong Chian School Of Business

This paper examines the relative advantages of single-product and multiproduct firms following changes in customer switching costs. Whereas a single-product firm can closely tailor offerings to customers' needs, a multiproduct firm can create value for customers in the form of flexibility, allowing them to change between product varieties as preferences evolve without needing to switch providers. We argue that this value-creation mechanism is more effective when customers face high switching costs and explore this prediction in the mobile telecommunications sector, using an exogenous policy change (mobile number portability) that suddenly decreases customer switching costs. Our results reveal that when customer …

Implementation Of Multiscale Mechanisms In Finite Element Analysis Of Active Composite Structures, Amany G. Micheal Prof., Yehia Bahei-El-Din

Mechanical Engineering

Interrogation of composite structures for inherent damage is investigated implementing three-tier analysis scheme. The analysis starts at the structure level where a general-purpose Finite Element code ABAQUS is employed to obtain the stress field in the second level of analysis that is the composite laminate. A special material routine is prepared to propagate the local fields to the individual plies and hence to the third level of analysis which is the microstructure modelling of the composite. Through the third level of analysis, interface damage between fiber and matrix is checked implementing a certain failure criteria. The interaction between the different …

The Performance Response Of A Heat Pipe Evacuated Tube Solar Collector Using Mgo/Mwcnt Hybrid Nanofluid As A Working Fluid, Ahmed A. Abdel-Rehim, Shady Henein

Mechanical Engineering

Utilizing a hybrid nanofluid is a promising solution for enhancing the thermal performance of the solar collector in a sustainable manner. In the present work, the effect of using magnesium oxide/multi-walled carbon nanotubes (MgO/MWCNT) hybrid nanofluid on the thermal performance of the evacuated tube solar collector is experimentally investigated. Four different weight ratios of (80:20), (70:30), (60:40), and (50:50) are used for a hybrid of MgO with MWCNTs in a water base, respectively. The experiments are performed at a 0.02% particle concentration and at various volume flow rates ranging from 1 to 3 L/min. The results show an enhancement in …

Responses Of An Axially Rotated Tube Versus Twisted Tube Design As Two Solutions To Enhance The Thermal Performance Under A Non-Uniform Heat Flux Condition: A Numerical Study, Andrew S. Tanious, Ahmed A. Abdel-Rehim, Ahmed A. Attia

Mechanical Engineering

Enhancement of heat transfer in tubes exposed to non-uniform heat flux applications is a key factor in increasing such applications' efficiency.

In the present study, heat transfer in an axially rotating pipe with concentrated heat flux at the lower section of the pipe is numerically investigated and compared to the twisting technique in such applications. The effects of pipe’s length (1, 2, and 3 m) and rotation rate (N = 0–10.5), which is the ratio between the rotational and axial Reynold’s numbers, are studied numerically using ANSYS Fluent while the effect of the twist ratio (S = 0.1–1m) is studied …

Perceived Usefulness Of Contraceptives Among Married Individuals In Rorya District, Nyagwegwe Wango, Denna Michael, Namanya Basinda

Institute for Educational Development, East Africa

The increasing use of contraception methods worldwide has allowed couples to choose the number and spacing of their children. Despite impressive achievements, contraceptive use remains low while the need for contraception is high in some of the world's poorest and most populous places. Little is known about the factors contributing to the low utilisation of contraceptives in the Rorya district, particularly among married individuals where the prevalence of contraceptive use was only 28%. A qualitative design was used for six focus group discussions and six in-depth interviews conducted with married individuals to understand the perception of the use of contraceptives …

Augmented Reality In Retail And Its Impact On Sales, Yong Chin Tan, Sandeep R. Chandukala, Srinivas K. Reddy

Research Collection Lee Kong Chian School Of Business

The rise of Augmented Reality (AR) technology presents marketers with promising opportunities to engage customers and transform their brand experience. While firms are keen to invest in AR, research documenting its tangible impact in real-world contexts is sparse. In this article, the authors outline four broad uses of the technology in retail settings. Next, they focus specifically on the use of AR to facilitate product evaluation prior to purchase, and empirically investigate its impact on sales in online retail. Using data obtained from an international cosmetics retailer, they find that AR usage on the retailer’s mobile app is associated with …

Treasury Inconvenience Yields During The Covid-19 Crisis, Zhiguo He, Stefan Nagel, Zhaogang Song

Research Collection Lee Kong Chian School Of Business

In sharp contrast to most previous crisis episodes, the Treasury market experienced severe stress and illiquidity during the COVID-19 crisis, raising concerns that the safe-haven status of US Treasuries may be eroding. We document large shifts in Treasury ownership and temporary accumulation of Treasury and reverse repo positions on dealer balance sheets during this period. We build a dynamic equilibrium asset pricing model in which dealers subject to regulatory balance sheet constraints intermediate demand/supply shocks from habitat agents and provide repo financing to levered investors. The model predicts that Treasury inconvenience yields, measured as the spread between Treasuries and overnight-index …