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Integration of AutoCAD and Microsoft Excel for Forest Survey Application
Mohd Rizuwan Mamat,Khali Aziz Hamzah,Muhammad Farid Rashid,Mohd Azahari Faidi,Azharizan Mohd Norizan 강원대학교 산림과학연구소 2013 Journal of Forest Science Vol.29 No.4
Forest Survey consists of road survey, topographic survey, tree mapping survey, stream survey and also ridge survey. Information from forest survey is important and become essential in preparing base map to be used for forest harvesting planning and control. With the current technologies technique of data processing and mapping from traditionally hand drawn method had shifted to a computer system particularly the use of Computer Aided Design (CAD). This gives great advantages to the forest managers and logging operators. However data processing and mapping duration could be further reduced by integrating CAD with other established software such as Microsoft Excel. This time study to show that there is significance difference in term of duration for data processing and efficiency using AutoCAD in combination with Microsoft Excel program as compare to the use of AutoCAD program alone. From the study, it shows that the integration of AutoCAD and Microsoft Excel is able to reduce 70% of duration for data processing and mapping as compared to the use of AutoCAD program alone.
WEYL'S TYPE THEOREMS FOR ALGEBRAICALLY (p, k)-QUASIHYPONORMAL OPERATORS
Rashid, Mohammad Hussein Mohammad,Noorani, Mohd Salmi Mohd Korean Mathematical Society 2012 대한수학회논문집 Vol.27 No.1
For a bounded linear operator T we prove the following assertions: (a) If T is algebraically (p, k)-quasihyponormal, then T is a-isoloid, polaroid, reguloid and a-polaroid. (b) If $T^*$ is algebraically (p, k)-quasihyponormal, then a-Weyl's theorem holds for f(T) for every $f{\in}Hol({\sigma}T))$, where $Hol({\sigma}(T))$ is the space of all functions that analytic in an open neighborhoods of ${\sigma}(T)$ of T. (c) If $T^*$ is algebraically (p, k)-quasihyponormal, then generalized a-Weyl's theorem holds for f(T) for every $f{\in}Hol({\sigma}T))$. (d) If T is a (p, k)-quasihyponormal operator, then the spectral mapping theorem holds for semi-B-essential approximate point spectrum $\sigma_{SBF_+^-}(T)$, and for left Drazin spectrum ${\sigma}_{lD}(T)$ for every $f{\in}Hol({\sigma}T))$.
Null current hysteresis for acetylacetonate electron extraction layer in perovskite solar cells
Mohd Yusoff, Abd. Rashid bin,Mat Teridi, Mohd Asri,Jang, Jin The Royal Society of Chemistry 2016 Nanoscale Vol.8 No.12
<P>Solution processed zirconium acetylacetonate (Zr(acac)) is successfully employed as an electron extraction layer, replacing conventional titanium oxide, in planar CH3NH3PbI3 perovskite solar cells. The as-prepared Zr(acac) film possesses high transparency, high conductivity, a smooth morphology, high wettability, compatibility with PbI2 DMF solution, and an energy level matching that of CH3NH3PbI3 perovskite material. An average power conversion efficiency of about 11.93%, along with a high fill factor of 74.36%, an open circuit voltage of 1.03 V, and a short-circuit current density of 15.58 mA cm(-2) is achieved. The overall performance of the devices is slight better than that of cells using ruthenium acetylacetonate (Ru(acac)). The differences between solar cells with different electron extraction layers in charge recombination, charge transport and transfer and lifetime are further explored and it is demonstrate that Zr(acac) is a more effective and promising electron extraction layer. This work provides a simple, and cost effective route for the preparation of an effective hole extraction layer.</P>
Mohd Yusoff, Abd. Rashid bin,Kim, Dongcheon,Schneider, Fabio Kurt,da Silva, Wilson Jose,Jang, Jin The Royal Society of Chemistry 2015 ENERGY AND ENVIRONMENTAL SCIENCE Vol.8 No.5
<P>Polymer solar cells (PSCs) are apparently becoming one of the leading technologies to reduce our dependency on traditional power sources. However, the frequent use of a transparent conductive electrode, indium-tin-oxide (ITO), in the present PSC technologies has increased the overall expenses. In addition, its brittleness in nature could limit the future development of PSCs, particularly in a flexible format. Here, we report on the development of Au-doped single layer graphene nanoribbons (Au-doped SLGNRs) as an option to the transparent conducting electrode (indium tin oxide, ITO) that could yield a single-layer PSC with power conversion and external quantum efficiencies comparable to commonly used transparent electrodes. When the Au-doped SLGNRs are implemented in tandem architecture, a power conversion efficiency (PCE) of 8.48% is achieved. This is the highest efficiency for ITO-free tandem PSCs to date. The improved performance of the Au-doped SLGNR anode is characterized to the structure of the device that enables a hole transport from the active layer into the Au-doped SLGNR anode.</P>
New evidence of Lockup Provisions: Effects on IPO Demands
Mohd-Rashid, Rasidah,Khaw, Karren Lee-Hwei,Mehmood, Waqas,Tajuddin, Ahmad Hakimi World Association for Triple Helix and Future Stra 2022 Journal of Contemporary Eastern Asia Vol.21 No.1
This study examines the impacts of a mandatory lockup ratio and lockup period, together with voluntary lockup, on the initial public offering (IPO) subscription rate in Malaysia. A sample of 390 IPOs launched from 2000 to 2016 was collected for analysis. The findings show that firms that adopt a lower lockup ratio and a shorter lockup period signal uncertainty about their prospects. Issuers would then show the tendency to underprice to increase investors' intention to subscribe to firms' IPO shares. This study concludes that as long as investors are aware of pertinent information about IPO firms, they should continue participating in the IPO market rather than behaving irrationally. Finally, policymakers could use the findings to improve the existing lockup provisions regulation.
bin Mohd Yusoff, Abd. Rashid,Lee, Seung Joo,Kim, Jaeyeon,Shneider, Fabio Kurt,da Silva, Wilson Jose,Jang, Jin American Chemical Society 2014 ACS APPLIED MATERIALS & INTERFACES Vol.6 No.15
<P>We demonstrated the inverted solution processed tandem polymer solar cells, in which transparent pH-neutral poly(3,4-ethylenedioxylenethiophene)–polystylene sulfonic acid (PEDOT:PSS) and lithium zinc oxide layers were used as a recombination layer. We have used poly(di(2-ethylhexyloxy)benzo[1,2-<I>b</I>:4,5-<I>b</I>′]dithiophene-<I>co</I>-octylthieno[3,4-<I>c</I>]pyrrole-4,6-dione):[6,6]-phenyl-C<SUB>61</SUB> butyric acid methyl ester (PBDTTPD:PC<SUB>61</SUB>BM) and poly[(4,4′-bis(2-ethylhexyl)dithieno[3,2-<I>b</I>:2′,3′-<I>d</I>] silole)-2,6-diyl-<I>alt</I>-(2,1,3-benzothiadiazole)-4,7-diyl]:[6,6]-phenyl-C<SUB>70</SUB> butyric acid methyl ester (PSBTBT:PC<SUB>70</SUB>BM) as the active layers for front and rear subcells, respectively. The pH-neutral PEDOT:PSS/LZO serves as an electron- and hole-collecting and recombination layer. Our tandem solar cells showed a high open circuit voltage (<I>V</I><SUB>oc</SUB>) of 1.54 V, a short circuit current density (<I>J</I><SUB>sc</SUB>) of 7.55 mA/cm<SUP>2</SUP>, and a fill factor (FF) of 64.79% along with the power conversion efficiency of 7.53%. The <I>V</I><SUB>oc</SUB> value of our tandem solar cells is an ideal summation of <I>V</I><SUB>oc</SUB> values from front and rear subcells.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/aamick/2014/aamick.2014.6.issue-15/am5029318/production/images/medium/am-2014-029318_0009.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/am5029318'>ACS Electronic Supporting Info</A></P>
Integration of AutoCAD and Microsoft Excel for Forest Survey Application
Mamat, Mohd Rizuwan,Hamzah, Khali Aziz,Rashid, Muhammad Farid,Faidi, Mohd Azahari,Norizan, Azharizan Mohd Institute of Forest Science 2013 Journal of Forest Science Vol.29 No.4
Forest Survey consists of road survey, topographic survey, tree mapping survey, stream survey and also ridge survey. Information from forest survey is important and become essential in preparing base map to be used for forest harvesting planning and control. With the current technologies technique of data processing and mapping from traditionally hand drawn method had shifted to a computer system particularly the use of Computer Aided Design (CAD). This gives great advantages to the forest managers and logging operators. However data processing and mapping duration could be further reduced by integrating CAD with other established software such as Microsoft Excel. This time study to show that there is significance difference in term of duration for data processing and efficiency using AutoCAD in combination with Microsoft Excel program as compare to the use of AutoCAD program alone. From the study, it shows that the integration of AutoCAD and Microsoft Excel is able to reduce 70% of duration for data processing and mapping as compared to the use of AutoCAD program alone.