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Optimal Su-Do-Ku based interconnection scheme for increased power output from PV array under partial

P. SRINIVASA RAO,P. DINESH,G. SARAVANA ILANGO,C. NAGAMANI

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 199-210 doi: 10.1007/s11708-015-0350-1

Abstract: A Su-Do-Ku configuration can be used to rearrange the physical locations of the PV modules in a totalHowever, this arrangement increases the length of the wire required to interconnect the panels thus increasingIn this paper, an improved Su-Do-Ku arrangement that reduces the length of the wire required for theThe results prove that the power output is higher in the proposed improved Su-Do-Ku reconfiguration techniquecompared to the earlier proposed Su-Do-Ku technique.

Keywords： array configuration     mismatch losses     partial shading     line losses     Su-Do-Ku arrangement    

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On-line controlling system for nitrogen and phosphorus removal of municipal wastewater in a sequencing batch reactor (SBR)

LI Jun, NI Yongjiong, WEI Su, CHENG Guobiao, OU Changjin, PENG Yongzhen, GU Guowei, LU Jingen

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 1,   Pages 99-102 doi: 10.1007/s11783-008-0017-9

Abstract: The reactor was equipped with on-line monitoring sensors for dissolved oxygen (DO), oxidation-reductionThe variation of DO, ORP and pH is relevant to each phase of biological process for nitrogen and phosphorusThe characteristic points of DO, ORP and pH can be used to judge and control the stages of process thatby the turning points of ORP and pH; nitrification by the ammonia valley of pH and ammonia elbows of DOphosphate uptake by the turning point of pH; and residual organic carbon oxidation by the carbon elbows of DO

Keywords： DO     relevant     biological process     nitrogen     pH    

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Unusual global outbreak of monkeypox: what should we do?

Frontiers of Medicine 2022, Volume 16, Issue 4,   Pages 507-517 doi: 10.1007/s11684-022-0952-z

Abstract: Recently, monkeypox has become a global concern amid the ongoing COVID-19 pandemic. Monkeypox is an acute rash zoonosis caused by the monkeypox virus, which was previously concentrated in Africa. The re-emergence of this pathogen seems unusual on account of outbreaks in multiple nonendemic countries and the incline to spread from person to person. We need to revisit this virus to prevent the epidemic from getting worse. In this review, we comprehensively summarize studies on monkeypox, including its epidemiology, biological characteristics, pathogenesis, and clinical characteristics, as well as therapeutics and vaccines, highlighting its unusual outbreak attributed to the transformation of transmission. We also analyze the present situation and put forward countermeasures from both clinical and scientific research to address it.

Keywords： monkeypox     poxviruses     vaccine     infectious diseases    

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Do right PLS and do PLS right: A critical review of the application of PLS-SEM in construction management

Ningshuang ZENG, Yan LIU, Pan GONG, Marcel HERTOGH, Markus KÖNIG

Frontiers of Engineering Management 2021, Volume 8, Issue 3,   Pages 356-369 doi: 10.1007/s42524-021-0153-5

Abstract: Partial least squares structural equation modeling (PLS-SEM) is a modern multivariate analysis technique with a demonstrated ability to estimate theoretically established cause-effect relationship models. This technique has been increasingly adopted in construction management research over the last two decades. Accordingly, a critical review of studies adopting PLS-SEM appears to be a timely and valuable endeavor. This paper offers a critical review of 139 articles that applied PLS-SEM from 2002 to 2019. Results show that the misuse of PLS-SEM can be avoided. Critical issues related to the application of PLS-SEM, research design, model development, and model evaluation are discussed in detail. This paper is the first to highlight the use and misuse of PLS-SEM in the construction management area and provides recommendations to facilitate the future application of PLS-SEM in this field.

Keywords： PLS     SEM     construction management     literature review     misuse    

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How do project-oriented organizations enhance innovation? An institutional theory perspective

Frontiers of Engineering Management   Pages 427-438 doi: 10.1007/s42524-023-0258-0

Abstract: A project-oriented organization is a hybrid form of organization where a functional hierarchy is augmented with structures to manage projects strategically across the organization. Six project-oriented organizations from diverse industries that emphasize innovation in their strategies were selected for this study. We use the three pillars of institutional theory — regulative, normative and cultural-cognitive — and institutional entrepreneurship to analyze interview data from executive and project, program and portfolio management personnel in the project-oriented organizations to investigate how innovation is facilitated through external influences and internal responses. Our findings indicate that processes and new structures provide effective ways for innovation and, while individuals are important, processes are more effective than individuals at enabling innovation. We put forward some lessons for practice that emerge directly from the findings, including suggestions on improving allocation of resources, a need to focus on processes, reconceptualization of “failure”, and dedicated investment in market knowledge, customer knowledge, performance metrics and flexible governance structures.

Keywords： project-oriented organizations     innovation     institutional entrepreneurship     institutional theory    

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Do civil engineering fronts emerge from interdisciplinary research?

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 1-9 doi: 10.1007/s11709-022-0929-7

Abstract: Interdisciplinary research is considered a source of innovativeness and creativity, serving as a key mechanism for creating recombination necessary for the evolution of science systems. The aim of this study is to quantitatively establish the connection between interdisciplinary research and the research fronts that have recently emerged in civil engineering. The degree of interdisciplinarity of the research fronts was measured by developing metrics from bibliographic analyses. As indicated by the consistent increase in the metrics of interdisciplinarity over time, research fronts tend to emerge in studies with increasing diversity in the disciplines involved. The active disciplines involved in the fronts vary over time. The most active disciplines are no longer fundamental but those associated with energy, environment, and sustainable development, focusing on solutions to climate change and integrating intelligence technologies.

Keywords： interdisciplinary research     research front     bibliographic analysis    

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A better way to do small-for-size liver transplantation in rats

Jiang LI, Yu HOU, Jing LIU, Bin LIU, Li LI

Frontiers of Medicine 2011, Volume 5, Issue 1,   Pages 106-110 doi: 10.1007/s11684-011-0113-2

Abstract:

Establishing a model for small-for-size liver transplantation is the basis for this study of partial and living donor graft liver transplantation. This study aims to explore a simpler and more effective way of establishing a 30% small-for-size liver transplantation in rats. Sprague-Dawley rats were selected as the donors and recipients. Small-for-size orthotopic liver transplantation was performed using Kamada’s two-cuff method. The donor’s liver was flushed via the abdominal aorta and hepatectomy was performed in situ. The animals were divided into three groups depending on the graft selected, with 40 pairs of rats in each group. In group I, the median lobe of the liver was used as graft; in group II, the right half of the median lobe and the right lobe were used as graft; and in group III, the median and right lobes were used as graft. In groups I and II, the bodyweights of donors were the same as those of recipients; however, in group III the bodyweights of donors were 100–120 g less than those of the recipients. The duration needed for transplantation, the 7-day survival rates, and the technical complication rates were compared among these three groups. The time required for hepatectomy was shorter in group III compared with groups I and II (8.8?±?0.7 min vs. 11.5?±?1.1 min and 10.1?±?1.0 min, P = 0.001). The cold ischemia time for the grafts, the anhepatic times, and the transplantation times for the recipients were not significantly different among the three groups. Compared with groups I and II, the incidence of bleeding, bile leakage, and inferior vena caval strictures were significantly decreased in group III (P<0.05). No significant differences between the three groups were found based on other complications after the operation (P>0.05). Group III had better 7-day survival rates and longer median survival times but the differences were not statistically significant. The method of small for donor bodyweight using the median and right lobes for grafting may be a more effective and simpler way of establishing a 30% small-for-size liver transplantation in rats, as shown by the shorter hepatectomy time and the occurrence of fewer complications after the operation.

Keywords： liver transplantation     small-for-size     rats    

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Conserved gene arrangement in the mitochondrial genomes of barklouse families Stenopsocidae and Psocidae

Xiaochen LIU, Hu LI, Yao CAI, Fan SONG, John-James WILSON, Wanzhi CAI

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 3,   Pages 358-365 doi: 10.15302/J-FASE-2017158

Abstract: Substantial variation in gene organization and arrangement has been reported for sequenced mitochondrial

Keywords： gene rearrangement     mitochondrial genome     Psocoptera     Stenopsocidae     TDRL model    

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Do not let precision medicine be kidnapped

Zhiping Yang

Frontiers of Medicine 2015, Volume 9, Issue 4,   Pages 512-513 doi: 10.1007/s11684-015-0425-8

Abstract:

Obama’s precision medicine initiative made the medical community boil over after the initiative’s release. Precision medicine has been advocated by the majority of scientists and doctors. However, some experts have questioned this concept. This article does not oppose precision medicine. However, the incentive of vigorously promoting precision medicine at present is a concern.

Keywords： precision medicine     personalized medicine     genomics    

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How do digital technologies improve supply chain resilience in the COVID-19 pandemic?

Frontiers of Engineering Management   Pages 39-50 doi: 10.1007/s42524-022-0230-4

Abstract: Digital technologies (DTs) can assist businesses in coping with supply chain (SC) disruptions caused by unpredictability, such as pandemics. However, the current knowledge of the relationship between DTs and supply chain resilience (SCR) is insufficient. This study draws on information processing theory to develop a serial mediation model to address this deficiency. We analyze a sample set consisting of 264 Chinese manufacturers. The empirical results reveal that digital supply chain platforms (DSCPs), as well as supply chain traceability (SCT) and supply chain agility (SCA), fully mediate the favorable association between DTs and SCR. Specifically, the four significant indirect paths indicated that firms can improve SCR only if they use DTs to directly or indirectly improve SCT and SCA (through DSCPs). Our study contributes to the literature on resilience by examining the possible mechanism of mediation through which DTs influence SCR. The findings also offer essential insights for firms to modify their digital strategies and thrive in a turbulent environment.

Keywords： digital technologies     supply chain resilience     information processing theory     COVID-19     China    

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Task Arrangement of the IPD Process Plan

Lu Jianxia,Cheng Chengsong,Lan Xiuju,Chen Yong,Xie Liewei

Strategic Study of CAE 2004, Volume 6, Issue 5,   Pages 56-60

Abstract:

This paper is related to task arrangement of the IPD process plan.The task arrangement modeling and related Hungary algorithms is given with conception of cost matrix,

Keywords： IPD     task arrangement     process plan     goal decision    

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Exhaust hood for steam turbines-single-flow arrangement

Michal HOZNEDL , Ladislav TAJC , Jaroslav KREJCIK , Lukas BEDNAR , Kamil SEDLAK , Jiri LINHART ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 321-329 doi: 10.1007/s11708-009-0039-4

Abstract: from the development of double-flow turbines form the basis for the design of the single-flow turbine arrangementThere are still some limitations in applying this arrangement.

Keywords： exhaust hood     steam turbines     single-flow arrangement    

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cholecystectomy using the one-incision three-trocar technique with all straight instruments: how I do

Hongyi Cui

Frontiers of Medicine 2011, Volume 5, Issue 3,   Pages 283-287 doi: 10.1007/s11684-011-0151-9

Abstract: Single incision laparoscopic surgery (SILS) is a novel minimally invasive surgical technique that is gaining popularity around the world. One of the most commonly performed procedures is single incision laparoscopic cholecystectomy (SILC). Most reported techniques utilize special purpose-made access port and articulating instruments, rendering the procedure costly and difficult to learn. This article provides a stepwise description of SILC technique using all straight instruments without the need for a special port. It aims to shorten the learning curve for surgeons wishing to adopt a safe and cost-effective SILC technique to their practice.

Keywords： laparoscopic cholecystectomy     single incision laparoscopic surgery    

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Health in an Aging World: What Should We Do? Views & Comments

Yu-Mei Wen

Engineering 2016, Volume 2, Issue 1,   Pages 40-43 doi: 10.1016/J.ENG.2016.01.010

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Selective reduction of NO by photo-SCR with ammonia in an annular fixed-film photoreactor

YiangChen CHOU, Young KU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 149-155 doi: 10.1007/s11783-010-0296-9

Abstract: Gaseous NO was photocatalytically reduced at room temperature by photo-assisted selective catalytic reduction (photo-SCR) with ammonia over TiO in this study. NO reduction efficiency and N selectivity were determined from gases composition at the outlet stream of photoreactor. Effect of operating conditions, e.g. light intensity and inlet concentrations of ammonia and oxygen, on the NO reduction efficiency and N selectivity were discussed to determine the feasible operating condition for photocatalytic reduction of NO. Experimental results showed that selective catalytic reduction of NO with ammonia over TiO in the presence of oxygen was a spontaneous reaction in dark. The photoirradiation on the TiO surface caused remarkable photocatalytic reduction of NO to form N , NO , and N O under 254 nm UV illuminations, while almost 90% of N selectivity was achieved in this study. The ammonia and oxygen molecules played the roles of reductant and oxidant for NO reduction and active sites regeneration, respectively. The reduction of NO was found to be increased with the increase of inlet ammonia and oxygen concentrations until specific concentrations because of the limited active sites on the surface of TiO . The kinetic model proposed in this study can be used to reasonably describe the reaction mechanism of photo-SCR.

Keywords： photo-SCR     photocatalysis     NO reduction     Eley-Rideal model    

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Title Author Date Type Operation

Optimal Su-Do-Ku based interconnection scheme for increased power output from PV array under partial

P. SRINIVASA RAO,P. DINESH,G. SARAVANA ILANGO,C. NAGAMANI

Journal Article

On-line controlling system for nitrogen and phosphorus removal of municipal wastewater in a sequencing batch reactor (SBR)

LI Jun, NI Yongjiong, WEI Su, CHENG Guobiao, OU Changjin, PENG Yongzhen, GU Guowei, LU Jingen

Journal Article

Unusual global outbreak of monkeypox: what should we do?

Journal Article

Do right PLS and do PLS right: A critical review of the application of PLS-SEM in construction management

Ningshuang ZENG, Yan LIU, Pan GONG, Marcel HERTOGH, Markus KÖNIG

Journal Article

How do project-oriented organizations enhance innovation? An institutional theory perspective

Journal Article

Do civil engineering fronts emerge from interdisciplinary research?

Journal Article

A better way to do small-for-size liver transplantation in rats

Jiang LI, Yu HOU, Jing LIU, Bin LIU, Li LI

Journal Article

Conserved gene arrangement in the mitochondrial genomes of barklouse families Stenopsocidae and Psocidae

Xiaochen LIU, Hu LI, Yao CAI, Fan SONG, John-James WILSON, Wanzhi CAI

Journal Article

Do not let precision medicine be kidnapped

Zhiping Yang

Journal Article

How do digital technologies improve supply chain resilience in the COVID-19 pandemic?

Journal Article

Task Arrangement of the IPD Process Plan

Lu Jianxia,Cheng Chengsong,Lan Xiuju,Chen Yong,Xie Liewei

Journal Article

Exhaust hood for steam turbines-single-flow arrangement

Michal HOZNEDL , Ladislav TAJC , Jaroslav KREJCIK , Lukas BEDNAR , Kamil SEDLAK , Jiri LINHART ,

Journal Article

cholecystectomy using the one-incision three-trocar technique with all straight instruments: how I do

Hongyi Cui

Journal Article

Health in an Aging World: What Should We Do?

Yu-Mei Wen

Journal Article

Selective reduction of NO by photo-SCR with ammonia in an annular fixed-film photoreactor

YiangChen CHOU, Young KU

Journal Article