Journal articles: 'Shift operations'

1

THAYER, ANN. "GENOMICS FIRMS SHIFT OPERATIONS." Chemical & Engineering News 80, no. 46 (2002): 14. http://dx.doi.org/10.1021/cen-v080n046.p014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Vilardy, Juan M., Eder Alfaro, and Johonfri Mendoza. "Convolution, Correlation and Generalized Shift Operations Based on the Fresnel Transform." Sensors 23, no. 3 (2023): 1663. http://dx.doi.org/10.3390/s23031663.

Full text

Abstract:

The Fresnel transform (FrT) is commonly used to describe the free-space propagation of optical waves. In this work, we present new definitions for the convolution, correlation and generalized shift operations based on the FrT. The generalized shift operation is defined by using simultaneous space and phase shifts. The generalized shift operation is useful for centred optical systems in the Fresnel domain (FrD) when the data distributions at the input plane of the optical system are shifted. The new convolution and correlation operations defined in terms of the FrT, the wavelength and the propagation distance, can be considered as a generalization of the usual convolution and correlation operations. The sampling theorem for distributions, whose resulting FrT has finite support, is formulated by using the new convolution operation introduced in this work and a new definition of the Dirac comb function. These new definitions and results could be applied to describe, design and implement optical processing systems related to the FrT. Finally, we present a centred optical systems used in holography and optical security systems that can be described or modelled by the new definitions of the operations proposed in this paper.

APA, Harvard, Vancouver, ISO, and other styles

3

Pelders, J., F. Magweregwede, and S. M. Rupprecht. "Optimization of shift cycles in the South African mining sector." Journal of the Southern African Institute of Mining and Metallurgy 121, no. 8 (2021): 1–9. http://dx.doi.org/10.17159/2411-9717/1428/2021.

Full text

Abstract:

Increased depths of conventional gold and platinum mines, longer travelling times as working places move further from the shaft, and ancillary activities taking place in the mining cycle reduce the useable time spent at the workface. Current shift lengths of 8 hours 20 minutes may no longer be adequate to complete required mining activities.The impact of mineworker commuting times on shift work is also not well understood. The aim of this research was to draft a framework to optimize shift cycles in order to maximize productivity, health, safety, and wellness in the South African mining sector. The framework was informed by a review of the literature, case studies at a local gold mine and platinum mine, and a workshop with industry experts. The findings indicate potential advantages of extended shift lengths and continuous operations, such as improved productivity, asset utilization, and employee morale. However, concerns included fatigue and the associated safety hazards, particularly when working longer shifts, night shifts, and numerous consecutive shifts. Job demands, personal factors, and commuting times are further considerations when scheduling shifts. The ideal shift system for the mining sector should holistically consider and balance operational requirements, health and safety, and employees' and their families' requirements, and suit the unique needs of each operation. Changes in shift cycles will require a structured change management process, which involves all stakeholders, and could help to enhance the viability of the South African mining sector.

APA, Harvard, Vancouver, ISO, and other styles

4

Nakayama, Don K., William M. Thompson, Julie L. Wynne, Martin L. Dalton, Andrew T. Bozeman, and Bruce J. Innes. "The Effect of ACGME Duty Hour Restrictions on Operative Continuity of Care." American Surgeon 75, no. 12 (2009): 1234–37. http://dx.doi.org/10.1177/000313480907501216.

Full text

Abstract:

Resident work restrictions limit participation in operations that address problems created by a prior operation, because complications occur at any time. We compared resident and attending surgeon staffing of operative complications. We reviewed all complications that required a second operation reported at our Morbidity and Mortality Conference over 1 year, noting surgeons present, their postgraduate year level, and call shift. Comparisons were done using χ2. Of 142 cases, 39 involved a second operation. The same attending surgeon was present for both in 79 per cent of cases, whereas the same resident was present in only 44 per cent ( P = 0.002). Postgraduate year 4 to 5 were less likely to be present for second operations than attendings (48% vs 87%, P = 0.011). Resident shift (day, night float, and weekend) was known in 32 cases. When the first operation occurred during day hours, attendings and residents were equally likely to be present at the second (55% and 45%, P = 0.16). When original operations took place during night float or weekend shifts, residents were less likely to be present (33%) than attendings (83%) at second operations ( P = 0.036). Duty hour restrictions interfere with operative continuity of care. Reoperations should be exempted from duty hour restrictions.

APA, Harvard, Vancouver, ISO, and other styles

5

van den Berg, M., J. Zaslona, L. Wu, and L. Signal. "P125 Identification of potential fatigue risks associated with Marine Pilot Transfer operations." Sleep Advances 5, Supplement_1 (2024): A71—A72. https://doi.org/10.1093/sleepadvances/zpae070.207.

Full text

Abstract:

Abstract Introduction Helicopter-based Marine Pilot Transfer operations involve transporting marine pilots to offshore vessels. These operations occur around the clock from remote locations. Helicopter crew work a ‘fly-in-fly-out’ schedule from their homebase usually located in a different time zone. This study monitored helicopter crew across ~21-day tours to identify potential fatigue risks. Methods Sleep was monitored with actigraphy and diaries. At the end of each shift, crew completed ratings of fatigue, sleepiness, and workload and a 5-minute PVT. Shifts were grouped by end times in 4x6-hourly bins. Linear mixed models investigated sleep and operational factors associated with fatigue, sleepiness, and performance at end of shifts. Results Data was collected from 15 helicopter crew across 21-day tours. Shifts ranged from 1.6-11 hours (n=220) with 1-14 sectors flown per shift. At the end of a shift, higher fatigue and sleepiness ratings were associated with less prior sleep (p&lt;.05), longer shifts (p &lt;.05), higher workload (p &lt;.05), and end shift timing (p&lt;.05). Fatigue and sleepiness were greater when shifts ended between 0001-0600, and for sleepiness also between 0601-1200. Higher workload was associated with slower response speed and slowest 10% of responses (p&lt;.05). End of shift PVT performance was slower in the first week of the tour compared to later weeks. Discussion The key fatigue risks in this operation are associated with high workload and/or long periods of work at a less than ideal circadian phase. A multi-faceted approach, including on-going education, management of possible jetlag at the beginning of their tour, and monitoring of high-risk shifts is recommended.

APA, Harvard, Vancouver, ISO, and other styles

6

Slomp, Jannes, and Nallan C. Suresh. "The shift team formation problem in multi-shift manufacturing operations." European Journal of Operational Research 165, no. 3 (2005): 708–28. http://dx.doi.org/10.1016/j.ejor.2004.01.034.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Hayes-Rodgers, Angela, and Altrivice D. Revis. "Off-shift Administration operations improvement collaborative." Journal of Clinical Oncology 30, no. 34_suppl (2012): 144. http://dx.doi.org/10.1200/jco.2012.30.34_suppl.144.

Full text

Abstract:

144 Background: Off-Shift Administration (OSA) supports the senior leadership by overseeing clinical operations for both inpatient and outpatient areas at MD Anderson. Our team is responsible for resolving and/or managing issues that could impede patient care, particularly when unsuccessful at the departmental level. This project focuses on streamlining inpatient discharge activities. Data reports from December 2010 to February 2011 revealed that OSA received 1,923 assistance requests institution-wide of which 13% were case management related. A taskforce familiar with patient care and case management processes ultimately resolved to decrease the number of calls made to Off-Shift Administration requesting case management services by 50% by June 2011. Methods: The pilot period began March 1, 2011 and ended May 31, 2011. The earliest intervention was to re-route after hours case management requests directly to the case manager on-call. In the new process, the RN paged the case manager on-call directly who would then escalate calls to OSA as deemed necessary for internal support. A staff education plan complemented the intervention. The education plan entailed in-services with nursing staff, discharge planning teams and nurse leaders for each unit. Education by way of posters was delivered on select units. Piloted areas were also surveyed to assess their knowledge of case management processes and wait time experiences. Results: Outcomes were favorable. OSA experienced an 80% reduction in call volume from the piloted areas. Survey results showed educational efforts yielded a positive practice change and increased awareness of case management protocol. Survey results also revealed a 20-minute reduction in wait time for case management assistance. Certainly, of greatest benefit were the reduced wait times and more expedient patient care and customer service for staff. Conclusions: The project was successful and knowledge gained was be used to implement permanently and within all patient care settings. This project also serves as a useful paradigm of Clinical Operations’ improved ability to distinguish operational trends requiring attention, thereby increasing operational efficiency and customer satisfaction.

APA, Harvard, Vancouver, ISO, and other styles

8

ANDROSHCHUK, O., O. NAHREBETSKYY, V. ORLENKO, V. CHESHUN, and A. KATAIEVA. "BASIC OPERATIONS OF SHIFT CODE FORMATION ALGORITHM USING HUFFMAN ENTROPY CODING." Herald of Khmelnytskyi National University. Technical sciences 291, no. 6 (2020): 7–12. https://doi.org/10.31891/2307-5732-2020-291-6-7-12.

Full text

Abstract:

The complexity and relevance of the tasks of cryptographic protection of information in the context of the increased value of information resources in the cyberspace causes interest in improving existing encryption algorithms and developing new ones. The paper presents the results of a study of the characteristic features of the method for increasing the cryptographic strength of encryption algorithms by modifying the input data using the methods of optimal entropy uneven coding using the example of Caesar replacement ciphers and optimal Huffman coding. Based on the results of the analysis, a mathematical model is proposed, which defines the main forms of data presentation and the functions of their transformation operations. The model provides for work with three types of code alphabets, changing which destroys the statistical dependencies of the occurrence of alphabet symbols in the text, which serves as the basis for increasing the cryptographic strength of the encryption algorithm. The main functions presented in the mathematical model are the functions of performing operations of forming the alphabet based on the text submitted to the encryption algorithm, determining the statistical characteristics of the text, optimal uneven coding of the text, generating a sequential binary code of the encoded text, determining the composition of the uniform alphabet for encrypting text encoded with Huffman codes, as well as operators of encryption and decryption of the transformed text using Caesar ciphers. The proposed model is intended for mathematical modeling of algorithmic implementation procedures for a combined encryption method using methods of optimal entropy uneven coding, as well as for evaluating the efficiency and cryptanalysis of ciphers.

APA, Harvard, Vancouver, ISO, and other styles

9

Owens, Edward H., Helen C. Dubach, and Robert W. Castle. "SHORELINE RESPONSE - A PARADIGM SHIFT." International Oil Spill Conference Proceedings 2014, no. 1 (2014): 1315–28. http://dx.doi.org/10.7901/2169-3358-2014.1.1315.

Full text

Abstract:

ABSTRACT From time to time an event or a series of events can produce a change in strategic thinking or operating practices. One outcome of the Deepwater Horizon response was to learn from the process by which the shoreline response program was developed while the majority of planning and operational effort was directed towards the multi-faceted and intensive on-water program to recover or eliminate oil on the water before it could reach the coastal zone to minimize the impacts of the spill. This emphasis is typical of most marine and coastal spill response operations even though the duration of on-water operations may be a few days or weeks, whereas the onshore phase typically extends over weeks, months, or even years. The chronic nature of the Deepwater Horizon spill resulted in the on-water phase lasting for several months so that resources that typically would have transferred over to shoreline operations within a short time frame (days to a few weeks) remained committed to offshore and nearshore operation well into the summer of 2010. Shoreline cleanup is arguably the most intensely scrutinized and potentially expensive, in terms of time and effort, part of any response. Pre-planning shoreline cleanup in detail can be very challenging. Notwithstanding the types and volumes of oil, primary factors affecting shoreline cleanup strategy include potential oil pathways, shore types, seasonal coastal ecosystem and individual resource sensitivities, stakeholder involvements, and tactical cleanup options and restrictions. Few organizations have dedicated resources for shoreline cleanup: these must be identified and mobilized for a specific scenario (shore type, oil character, volume, etc.). However, a readiness to respond rapidly and expertly to oil on shore is critical as cleanup actions typically are most effective and efficient immediately following deposition, before oil is remobilized, buried or weathers to a state more difficult to clean. These preplanning challenges often mean that crucial details in a shoreline response plan are developed while oil is heading towards or even is onshore. The development of a Shoreline Response Program (SRP) addresses these challenges. The model SRP is a paradigm shift in the sense that it represents a change in some basic assumptions for spill response planning and first-phase response operations related to shorelines.

APA, Harvard, Vancouver, ISO, and other styles

10

Varatharajan, Santhosh, and Archana Subramanian. "Reimagining Insurance: A Strategic Shift from Mainframe Systems to Cloud-Based Operations." International Journal of Science and Research (IJSR) 14, no. 3 (2025): 696–99. https://doi.org/10.21275/sr25313004418.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Chen, Liyan, Samuel Cheng, Vladimir Stankovic, and Lina Stankovic. "Shift-Enabled Graphs: Graphs Where Shift-Invariant Filters are Representable as Polynomials of Shift Operations." IEEE Signal Processing Letters 25, no. 9 (2018): 1305–9. http://dx.doi.org/10.1109/lsp.2018.2849685.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

De, Kaushik, Xavier Espinal, Alessandra Forti, et al. "ATLAS Distributed Computing Operations Shift Team Experience." Journal of Physics: Conference Series 331, no. 7 (2011): 072045. http://dx.doi.org/10.1088/1742-6596/331/7/072045.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Zynda, Jeffrey R. "A shift in designing cage-washing operations." Lab Animal 44, no. 4 (2015): 146–49. http://dx.doi.org/10.1038/laban.663.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Qu, Tongzhou, Zibin Dai, Yanjiang Liu, and Lin Chen. "A High Flexible Shift Transformation Unit Design Approach for Coarse-Grained Reconfigurable Cryptographic Arrays." Electronics 11, no. 19 (2022): 3144. http://dx.doi.org/10.3390/electronics11193144.

Full text

Abstract:

Shift transformations are the fundamental operation of cryptographic algorithms, and the arithmetic unit implementing different types of shift transformations are utilized in the coarse-grain reconfigurable cryptographic architectures (CGRCA) to meet the different cryptographic algorithms. In this paper, a reconfigurable shift transformation unit (RSTU) is proposed to meet the complicated shift requirement of CGRCA, which achieves high flexibility and a good cost–performance ratio. The mathematical properties of shift transformation are analyzed, and several theorems are introduced to design a reconfigurable shifter. Furthermore, the reconfigurable data path of the proposed unit is presented to implement the random combination of shift operations in different granularity, and configuration word and routing algorithms are proposed to generate control information for RSTU. Moreover, the control information generation module is designed to invert the configuration word into the control information, according to the routing algorithms. As a proof-of-concept, the proposed RSTU is built using the CMOS 65 nm technology. The experimental results show that RSTU supports more shift operations, increases 18.2% speed at most, and reduces 13% area occupation, compared to the existing shifters.

APA, Harvard, Vancouver, ISO, and other styles

15

Gorlov, Lev, Maksim Iavich, and Razvan Bocu. "Linear Layer Architecture Based on Cyclic Shift and XOR." Symmetry 15, no. 8 (2023): 1496. http://dx.doi.org/10.3390/sym15081496.

Full text

Abstract:

One of the nodes of a block symmetric encryption algorithm is represented by a linear layer, the purpose of which is to distribute the mutual influence of bits within the processed data block. Several methods exist for constructing a linear layer, the most common of which are matrix multiplication operations and the permutation of bits. Both approaches have high computational complexity and are not equally effective for both hardware and software implementations. This paper presents an approach for constructing linear functions for block symmetric encryption algorithms utilizing cyclic shift, and bitwise addition operations are formulated. We provide a preliminary assessment of certain properties of such functions, including the branch number. This linear operation can accommodate binary words of any length, allowing for the design of an optimal linear layer for software or hardware architectures with any word size. Furthermore, the developed architecture allows for balancing the laboriousness of linear operations and related branch numbers. The proposed novel linear layer architecture facilitates the creation of fast lightweight encryption algorithms as well as robust classical algorithms with a high level of cryptographic strength. For efficient implementation on software and hardware platforms, no additional optimizations are required, as the proposed linear layer allows for achieving high performance in both cases.

APA, Harvard, Vancouver, ISO, and other styles

16

KAWAI, Nobuyuki, Hajime ASE, Toshihide IBARAKI, and Mutsunori YAGIURA. "Scheduling of Shift Operations in a Container Terminal." Transactions of the Institute of Systems, Control and Information Engineers 10, no. 4 (1997): 182–90. http://dx.doi.org/10.5687/iscie.10.182.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Lavrijsen, Reinoud, Dorothée C. M. C. Petit, Amalio Fernández-Pacheco, JiHyun Lee, Rhodri Mansell, and Russell P. Cowburn. "Multi-bit operations in vertical spintronic shift registers." Nanotechnology 25, no. 10 (2014): 105201. http://dx.doi.org/10.1088/0957-4484/25/10/105201.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Sensmeier, Joyce. "The latest? A shift from operations to outcomes." Nursing Management (Springhouse) &NA; (September 2009): 2. http://dx.doi.org/10.1097/01.numa.0000363816.59273.df.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Haj-Fraj, A., and F. Pfeiffer. "Simulation of Gear Shift Operations in Automatic Transmission." IFAC Proceedings Volumes 31, no. 27 (1998): 85–90. http://dx.doi.org/10.1016/s1474-6670(17)40010-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Signal, T., M. van den Berg, and C. Ladyman. "O055 Fatigue risk in Search and Rescue operations: The challenge of sleep inertia and on-call work." Sleep Advances 5, Supplement_1 (2024): A20. https://doi.org/10.1093/sleepadvances/zpae070.055.

Full text

Abstract:

Abstract Introduction Offshore Oil and Gas operations are normally supported by 24/7 Search and Rescue (SAR) services, which often involve fly-in-fly-out (FIFO) rosters. The current study followed SAR crew during two 21-day FIFO rosters to identify operational features that may increase fatigue risk. Methods Actigraphy was used to measure periods of sleep. At the start and end of each shift crew completed a 3-minute Psychomotor Vigilance Task and recorded ratings of fatigue and sleepiness. At the end of shifts workload ratings were made. Mixed model ANCOVAs were used to identify workplace factors associated with changes in fatigue, sleepiness and performance. Results Eighteen crew participated across 546 shifts. At the start of a shift, less prior sleep (p&lt;.01) and less time awake (p&lt;.001) were associated with greater fatigue and sleepiness. Fatigue and sleepiness were higher for shifts starting after 1500 (p&lt;.01), whereas reaction time performance was slower for shifts starting before 0800 (p&lt;.05). At the end of a shift, fatigue and sleepiness ratings were higher for longer shifts (p&lt;.001), shifts with higher workload (p&lt;.05), when crew had been awake longer (p&lt;.05), or had been on-call the night prior (p&lt;.05). Discussion A range of possible fatigue risks were identified. These included sleep inertia at the start of shifts, indicated by greater fatigue when time between waking and starting work was short. Being on call the night prior increased fatigue risk at the end of the next day’s shift. Through understanding where the fatigue risks are, an organization can ensure mitigations are appropriate.

APA, Harvard, Vancouver, ISO, and other styles

21

Gendek, Arkadiusz, Monika Aniszewska, Witold Zychowicz, Tadeusz Moskalik, Jan Malaťák, and Barbora Tamelová. "Management of Chipping Operations in Polish Forests." Environmental Sciences Proceedings 3, no. 1 (2020): 56. http://dx.doi.org/10.3390/iecf2020-08056.

Full text

Abstract:

The aim of the research was to verify the impact of selected parameters on the efficiency and organization of chipper operations. The paper analyzes chipping operations in Polish forests with a focus on work site location, overnight chipper location, chipper workload per site, fuel consumption, and work shift duration, as all of these factors may affect operating efficiency. The mean chipper travel distance between sites during a shift ranged from 4.74 km to 9.5 km (chippers moved on average every other day). The mean work shift duration was 12.4 h. At the end of a shift, the chippers traveled on average from 4.2 km to 6.3 km to an overnight location. At the beginning of a workday, the chippers were dispatched to sites at a distance of 2.5 km to 4.0 km. The average fuel consumption of the forwarder-mounted chippers was 16 L/h and that of the truck-mounted chipper was 7.7 L/h. It was found that the following actions have a decisive influence on the effectiveness of the operation of the chippers: determination of the size of individual tasks and the deployment of successive forest areas, indication of the proper location of the machine base, and the method of accessing the forest area.

APA, Harvard, Vancouver, ISO, and other styles

22

Odden, David. "Tone shift and spread in Taita I." Studies in African Linguistics 30, no. 1 (2001): 76–99. http://dx.doi.org/10.32473/sal.v30i1.107363.

Full text

Abstract:

Numerous Bantu languages have processes of rightward shift or spread of H tone. Sometimes the process is quite simple: every H shifts once to the right (as in Cijita) or spreads once to the right (as in Kikerewe). The tonal system of Taita is more complex in that both shifting and spreading are found in the language. Furthermore, the extent of tone shift or spread is not just one syllable; sometimes, H tone can shift or spread by two syllables. An analysis of the tonal system of the Dembwa dialect of Taita is given here. It is argued that the facts of the language are best described in terms of two rules of rightward spreading and a third rule of tone delinking. The argument for analyzing the tone system in terms of three interacting rules rather than one unified rightward movement process resides in the fact that the environments for the three processes only overlap partially. On the theoretical front, these results support a general decomposition of the process of tone shift into tone spread interacting with tonal delinking, rather than including the operation of shift in the formal repertoire of primitive phonological operations.

APA, Harvard, Vancouver, ISO, and other styles

23

Donnelly, Orla, and James Carroll. "Daylight Considerations for Offshore Wind Operations and Maintenance." Journal of Physics: Conference Series 2875, no. 1 (2024): 012018. http://dx.doi.org/10.1088/1742-6596/2875/1/012018.

Full text

Abstract:

Abstract The cost associated with operations and maintenance (O&M) for offshore wind is a cost that developers and operators are striving to reduce in order to reduce the overall Levelised Cost of Energy. Improving accessibility and increasing time based availability of wind turbines can guarantee these reductions. To increase time based availability , some wind farms utilise night shift work to reduce downtime for turbines. Previous studies revealed cost reductions using this method but are strictly based on North Sea wind farms. This paper investigates the impact daylight hours have on the O&M costs for an offshore wind farm depending on location. Using an O&M model, three maintenance strategies are simulated and their associated O&M costs are found: ‘Daylight Limited’, ‘Daylight Not Limited’ and ‘Night Shift’. Three case studies are chosen: North Sea, USA and Australia. The operational costs for the North Sea were reduced by £32.74/MWhr with the introduction of the night shift. With increased daylight, the US site saw a smaller reduction in operational costs of £3.48/MWhr using the night shift. However, the Australian site was negatively impacted when adopting a night shift strategy as operational costs increased by £3.19/MWhr. The study considers, if there are reductions in cost through night shift, is it worth the trade-of the industry makes for health and safety of technicians who work at night.

APA, Harvard, Vancouver, ISO, and other styles

24

KUMAR, PRASHANT. "Transforming Operations: A Comprehensive Analysis of Industry 4.0 Technologies in Operations Management." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 05 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem32416.

Full text

Abstract:

In the introductory part of this paper, we provide a brief overview of the research subject matter, research topic, research problem, thesis topic, research questions, and disposition of this paper. Background Industry 4.0 brings about a major transformation in automotive manufacturing. It is characterized by the use of advanced information analytics, networked machines, and digitalization within organizations. In addition, it is characterized by the integration of internet technologies with forward-looking technologies in the domain of "smart" objects. However, there is no single definition of the term "industry 4.0" in the literature, which restricts theory building and the comparability of research. However, Lasi (2014) argues that industry 4-0 is a "new paradigm shift" in industrial production because of the advanced digitalisation within factories. A paradigm shift is a significant change that occurs when the normal way of thinking or doing something changes to something new and different. In industry 4-0, emerging technologies integrate with each other to bring about a change in manufacturing processes.

APA, Harvard, Vancouver, ISO, and other styles

25

Adithya, Reddy M. V., and Dinesh Reddy Jeeru. "Scan Chain Stitching based on Logic Topology for Test-Power Reduction under Routing Constraint." International Journal of Current Science Research and Review 05, no. 09 (2022): 3443–47. https://doi.org/10.5281/zenodo.7067135.

Full text

Abstract:

ABSTRACT: Scan architecture is a widely used design modification for testability in ASICs to obtain good test coverage. But during the process of scan testing, power consumption is much higher than in functional mode of operation, as all the flops in the design switch during scan shift operations (shift-in and shift-out). The heat generated from high power dissipation can destroy the chip, cause reliability problems, or induce noise. Sometimes the problem of wrong response due to overheating may arise, causing yield loss. For these reasons, test power reduction is a topic for research. Though there are several scan shift power optimization techniques used in practice, scan chain stitching techniques based on logic topology proposed in the recent years address both shift-in and shift-out powers. Conceptually, the techniques likely cause routing congestion and therefore applying the techniques under a routing constraint could be an optimal solution is the proposal presented in this paper.

APA, Harvard, Vancouver, ISO, and other styles

26

Kaplan, Steven E., David G. Kenchington, and Brian S. Wenzel. "The Valuation of Discontinued Operations and Its Effect on Classification Shifting." Accounting Review 95, no. 4 (2019): 291–311. http://dx.doi.org/10.2308/tar-2016-0235.

Full text

Abstract:

ABSTRACT Research documents that firms shift operating expenses into income-decreasing, but not income-increasing, discontinued operations. We argue that valuation considerations explain this asymmetric result, as acquirers are likely to value the earnings of income-increasing discontinued operations more highly than the earnings of income-decreasing discontinued operations. Using a large sample of hand-collected data, we show that pre-tax earnings and operating expenses are significantly more value-relevant for income-increasing discontinued operations, supporting our economic explanation for why firms do not shift operating expenses into income-increasing discontinued operations. Additional analysis shows that in situations where managers are constrained from shifting operating expenses due to valuation concerns, they shift tax expense (an expense that is less value-relevant) from continuing operations into income-increasing discontinued operations. Overall, we conclude that valuation considerations constrain firms from shifting operating expenses into income-increasing discontinued operations, but do not constrain firms shifting tax expenses.

APA, Harvard, Vancouver, ISO, and other styles

27

Metters, Richard. "Gender and operations management." Cross Cultural & Strategic Management 24, no. 2 (2017): 350–64. http://dx.doi.org/10.1108/ccsm-05-2016-0097.

Full text

Abstract:

Purpose Work that is considered appropriate for only one gender by the indigenous culture is explored. The focus is on the operational issues that accrue due to the combination of what is deemed appropriate treatment to, and activities of, women. Global differences in the operational sub-categories of business location, layout, the implementation of process improvement programs, shift scheduling, operational compliance, the strategic capability of volume flexibility, and other issues are explored. The paper aims to discuss these issues. Design/methodology/approach The literature from the disparate fields of women’s studies, anthropology, law, developmental economics, and management are synthesized. Findings There are extreme differences internationally in the viability of operational practices involving shift work, facility location, and other production issues. Particularly, research involving the implementation of quality management programs may be compromised due to gender effects. Practical implications A large number of practical issues are discussed. The viability and wisdom of many operational practices being copied from different cultures is addressed. Originality/value This work is a synthesis of the same subjects from widely disparate intellectual domains. The author informs management scholars and managers from unusual sources in medicine, women’s studies, anthropology, developmental economics, and law.

APA, Harvard, Vancouver, ISO, and other styles

28

Park, Taeho, Kyoungah Cho, and Sangsig Kim. "Temperature-Dependent Feedback Operations of Triple-Gate Field-Effect Transistors." Nanomaterials 14, no. 6 (2024): 493. http://dx.doi.org/10.3390/nano14060493.

Full text

Abstract:

In this study, we examine the electrical characteristics of triple-gate feedback field-effect transistors (TG FBFETs) over a temperature range of −200 °C to 280 °C. With increasing temperature from 25 °C to 280 °C, the thermally generated charge carriers increase in the channel regions such that a positive feedback loop forms rapidly. Thus, the latch-up voltage shifts from −1.01 V (1.34 V) to −11.01 V (10.45 V) in the n-channel (p-channel) mode. In contrast, with decreasing temperature from 25 °C to −200 °C, the thermally generated charge carriers decrease, causing a shift in the latch-up voltage in the opposite direction to that of the increasing temperature case. Despite the shift in the latch-up voltage, the TG FBFETs exhibit ideal switching characteristics, with subthreshold swings of 6.6 mV/dec and 7.2 mV/dec for the n-channel and p-channel modes, respectively. Moreover, the memory window widens with increasing temperature. Specifically, at temperatures above 85 °C, the memory windows are wider than 3.05 V and 1.42 V for the n-channel and p-channel modes, respectively.

APA, Harvard, Vancouver, ISO, and other styles

29

Dix, Jürgen, Georg Gottlob, and Wiktor Marek. "Reducing Disjunctive to Non-Disjunctive Semantics by Shift-Operations." Fundamenta Informaticae 28, no. 1,2 (1996): 87–100. http://dx.doi.org/10.3233/fi-1996-281205.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Shimobaba, Tomoyoshi, Takashi Kakue, Naohisa Okada, Minoru Oikawa, Yumi Yamaguchi, and Tomoyoshi Ito. "Aliasing-reduced Fresnel diffraction with scale and shift operations." Journal of Optics 15, no. 7 (2013): 075405. http://dx.doi.org/10.1088/2040-8978/15/7/075405.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Haj-Fraj, A., and F. Pfeiffer. "Optimal control of gear shift operations in automatic transmissions." Journal of the Franklin Institute 338, no. 2-3 (2001): 371–90. http://dx.doi.org/10.1016/s0016-0032(00)00091-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Stam, Jim, and Andrea Sodano. "A productive—and human—approach to shift-work operations." National Productivity Review 10, no. 4 (1991): 465–79. http://dx.doi.org/10.1002/npr.4040100404.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Wagner, Jon A. "Time-of-Day Variations in the Severity of Injuries Suffered by Mine Shiftworkers." Proceedings of the Human Factors Society Annual Meeting 32, no. 10 (1988): 608–11. http://dx.doi.org/10.1518/107118188786762694.

Full text

Abstract:

One means of assessing the hazard risk associated with mine work is to study the severity of injuries that occur during the course of the workday. Of special interest is the accident risk inherent in night work and rotating shiftwork. To better understand this risk, the Bureau of Mines conducted a study of accidents that occurred during a 10-year period in the taconite (iron) mining operations of the U.S. Lake Superior iron ore region. In general, accidents that occurred during the night shift resulted in more days lost per accident, compared with either the day or afternoon shifts. To control for the possibility of different accident types occurring on different shifts, part of this study focused on accidents involving equipment operation. Again, night shift accidents were shown to be significantly more severe than on the other two shifts. These results implicate work performance during night hours as being relatively impaired, perhaps due to lowered states of psychophysiological arousal, coupled with the handicap of operating in a darkened environment.

APA, Harvard, Vancouver, ISO, and other styles

34

van der Veen, Egbert, Erwin W. Hans, Gerhard F. Post, and Bart Veltman. "Shift rostering using decomposition: assign weekend shifts first." Journal of Scheduling 18, no. 1 (2014): 29–43. http://dx.doi.org/10.1007/s10951-014-0385-x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Shortz, Ashley E., Madeline Franke, E. Simay Kilic, S. Camille Peres, and Ranjana K. Mehta. "Evaluation of Offshore Shiftwork using Heart Rate Variability." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 61, no. 1 (2017): 1036–39. http://dx.doi.org/10.1177/1541931213601742.

Full text

Abstract:

The high fatality rate in oil and gas extraction (OGE) is a growing concern within the industry. OGE workers are exposed to long work hours, intense mental and physical workload, coupled with changing shift patterns, which can lead to elevated fatigue levels. The aim of this study was to explore the effect of shiftwork on heart rate variability indicators of workload and fatigue using wearable monitors in offshore operations. Ten male operators (age: 31.3 (6.1) years; stature: 1.72 (0.1) m; weight: 85.24 (9.8) kg) were monitored throughout their daily shifts for six days on an offshore drillship using physiological sensors. Heart rate variability (HRV) was measured in the frequency (ratio of low to high frequency; LF/HF) and temporal (root mean square of successive differences; RMSSD) domains. Six of the ten operators underwent swing shifts in the middle of the data collection period. There was a main effect of shift time on HRV parameters (i.e., operators on night shift were in a more fatigued state), and a main effect of swing shift on LF/HF (i.e., when swing shift occurred, those operators were more fatigued). Findings suggest that physiological profiles differ based on shift time and swing shifts, and that swing shifts for night shift workers adversely affect heart rate variability responses.

APA, Harvard, Vancouver, ISO, and other styles

36

Vikesh, Ukande* Ankit Pandit. "HIGH SPEED LOW POWER 32 BIT ALU IMPLEMENTATION." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 5, no. 10 (2016): 64–69. https://doi.org/10.5281/zenodo.159286.

Full text

Abstract:

The main objective of project is to design and verify different operations of Arithmetic and Logical Unit (ALU). We have designed an 32 bit ALU which accepts two 32 bits numbers and the code corresponding to the operation which it has to perform from the user. The ALU performs the desired operation and generates the result accordingly. The different operations are arithmetical, the coding was written in VHDL and verified in I-Sim. The waveforms were obtained successfully. After the coding was done, the synthesis of the code was performed using Xilinx-ISE.

APA, Harvard, Vancouver, ISO, and other styles

37

BORDIHN, HENNING, MARKUS HOLZER, and MARTIN KUTRIB. "HYBRID EXTENDED FINITE AUTOMATA." International Journal of Foundations of Computer Science 18, no. 04 (2007): 745–60. http://dx.doi.org/10.1142/s0129054107004954.

Full text

Abstract:

Extended finite automata are finite state automata equipped with the additional ability to apply an operation on the currently remaining input word, depending on the current state. Hybrid extended finite automata can choose from a finite set of such operations. In this paper, five word operations are taken into consideration which always yield letter-equivalent results, namely reversal and shift operations. The computational power of those machines is investigated, locating the corresponding families of languages in the Chomsky hierarchy. Furthermore, different types of hybrid extended finite automata, defined by the set of operations they are allowed to apply, are compared with each other, demonstrating that there exist dependencies and independencies between the input manipulating operations.

APA, Harvard, Vancouver, ISO, and other styles

38

Karlsrud, John. "UN Peacekeeping Operations in a Multipolar Era." Global Governance: A Review of Multilateralism and International Organizations 29, no. 2 (2023): 219–29. http://dx.doi.org/10.1163/19426720-02902001.

Full text

Abstract:

Abstract How is multipolarity impacting on UN peacekeeping operations? This article sets out to answer this question by examining the ongoing decline in UN peacekeeping operations and the concurrent rise of regional and ad hoc coalitions in an era of increasing geopolitical competition. The article argues that coalitions have significantly less focus on human rights, international humanitarian law, and the protection of civilians. They thus represent a shift away from the liberal values that have marked UN peacekeeping operations, and are coherent with current geopolitical shifts where China is chipping away at human rights at the UN and African states are increasingly voicing a need for more robust operations. The article concludes that the likely outcome of these trends is a continued decline of UN multidimensional peacekeeping, but that coalitions may receive logistical and administrative support from the UN peace operations machinery.

APA, Harvard, Vancouver, ISO, and other styles

39

Yurchenko, V. M. "Operating Load of Belt Conveyor as a Reflection of Actual Planogram of Coal Shearer Operation in Integrated-Powered Face." Mining science and technology 4, no. 2 (2019): 144–49. http://dx.doi.org/10.17073/2500-0632-2019-2-144-149.

Full text

Abstract:

Conveyor transport at a modern coal mine is the main link that determines the overall performance of the enterprise. For safe operation of belt conveyors, it is important to ensure that shift output per face doesn’t produce average and maximum minute material flows, which exceed strength margin of the belt, power margin of the drive, and receiving capacity. Such situation, as a rule, may arise due to the strive of workers to compensate for underproduction caused by long downtimes of a face for any reason. In the paper, a method is proposed that enables determining the maximum shift output per face. According to the technique described in the “Basic Provisions for Designing Underground Transport of New and Existing Coal Mines,” the average minute material flow, which determines the operational load on a belt conveyor, depends on the material feed time factor. Accepting the assumption that a coal shearer works the entire shift in a face, the limiting value of the material feed time factor is equal to 1. To determine the actual value of this factor, it is proposed to determine the face operating (production) time using actual planogram. The shift time is spent for preparatory and finishing operations, the face equipment and conveyor line troubleshooting and failure recovery, auxiliary service operations and, finally, operational and organizational downtimes. On the actual planogram, these time intervals are displayed by straight-line portions. Thus, the shift time minus downtime for any reason, represents the face production time. The ratio of these values represents the operation factor. Applying the operation factor allows to determine the maximum limiting face production, not only taking into account the volume of coal mined per cycle, but also based on coal cuttability and technical specifications of the face equipment. This enables us to determine the face production load that ensures safe operation of the belt conveyor.

APA, Harvard, Vancouver, ISO, and other styles

40

Dr., Sunita .B. Ahire. "Paradigm shift in logistics management." International Journal of Advance and Applied Research S6, no. 19 (2025): 621–26. https://doi.org/10.5281/zenodo.15111205.

Full text

Abstract:

A "paradigm shift" in logistics management refers to a fundamental change in how logistics operations are conducted, primarily driven by technological advancements like automation, data analytics, and digitalization, leading to a more data-driven, efficient, and customer-centric approach to managing the movement of goods, with key aspects including real-time tracking.

APA, Harvard, Vancouver, ISO, and other styles

41

Albornoz-Miranda, Manuel, and Gabriel Góngora-Jercic. "Sleep Disruption, Fatigue, and Altered Neurobehavioral Performance Among Flight Controllers During Spaceflight Operations." Chronobiology in Medicine 5, no. 4 (2023): 157–62. http://dx.doi.org/10.33069/cim.2023.0025.

Full text

Abstract:

In spaceflight operations, flight controllers manage technical aspects of spaceflight control and spacecraft systems. The flight control team is a group subjected to shift work. Acute and chronic exposure to shift work has been associated with circadian misalignment, sleep impairment, and a negative impact on cognitive performance. This study aims to review the effects of shift work on sleep, circadian rhythms, mood, and cognitive performance of flight controllers during real and simulated spaceflight operations. Shift work during low-Earth orbit spaceflight missions is associated with a reduction in alertness, motivation, processing speed, and working memory performance efficiency. Flight controllers also report excessive insomnia and insufficient total sleep time. The development of shift work sleep disorder may be present in up to 40% of workers, especially among night and evening shift workers. Mars operations and Mars-simulated missions are associated with an impairment of visual-motor performance, working memory efficiency, and reaction time. Between 50%–87% of controllers can synchronize their circadian rhythm to a Mars day (24.65 hours), although this adaptation is not reflected in improved neurobehavioral performance.

APA, Harvard, Vancouver, ISO, and other styles

42

Edu-Afful, Fiifi. "The Anatomy of Ghanaian Domestic Military Operations: Exploring Operations Vanguard and Calm Life." Contemporary Journal of African Studies 9, no. 1 (2022): 39–52. http://dx.doi.org/10.4314/contjas.v9i1.4.

Full text

Abstract:

This article focuses on the under-researched and under-discussed domestic security implications in Ghana of military participation in international peacekeeping operations. While there is appreciable awareness and knowledge of the role of peacekeepers in reducing conflict in host countries, very little attention is given to their actions when they return home. The money, training and combat experience emanating from peacekeeping are likely to have considerable institutional, policy, operational (tactics, techniques and procedures) and political consequences in their home countries. In Ghana, especially, peacekeeping training and combat experience provide tools that can be used for internal security interventions. Increasingly, there has been a change in policy in Ghana where the military is involved in several local security operations. This policy shift has seen the creation of a number of joint internal operations involving the military and the police. Based on fieldwork in Ghana, the article explores two major internal operations: Operation Calm Life (to combat armed robbery) and Operation Vanguard (to combat illegal mining). The study shows how diverse dimensions of experience from peacekeeping have practical implications for shaping domestic security provision.

APA, Harvard, Vancouver, ISO, and other styles

43

Mhlongo, Philisiwe, Sibusiso Derrick Gabela, and Poovendhree Reddy. "An assessment of psychosocial and health risks associated with shift work in a South African manufacturing context." Ergonomics SA 31, no. 1 (2022): 35–50. http://dx.doi.org/10.4314/esa.v31i1.4.

Full text

Abstract:

Shift work is a necessity to ensure continuous and optimized operations in different occupational scenarios. However, there are numerous adverse effects associated with working shifts. This study is aimed at evaluating the psychosocial and health risks associated with working shifts in a manufacturing context in South Africa (SA). A cross sectional design using a modified form of the validated Standard Shift Work Index (SSI) questionnaire was used to collect quantitative data. Most participants were considered to be in good health, however they reported health complaints relating to swollen feet, weight gain, loss of appetite and gastrointestinal disorders. In addition, participants reported that their domestic lives were somewhat affected (45%) and their social lives were adversely affected (47%) by working shifts. Shift work experience (11 to 20 years) was also found to be significantly associated with more time for both social (OR = 0.10; 95% CI = 0.03; 0.30) and domestic activities (OR= 0.25; 95% CI = 0.11; 0.57; p < 0.05) compared to those with less experience. This may be attributed to the healthy worker survivor effect; it is likely that shift workers with longer working experience have developed practical coping strategies to mitigate some of the problems related to shift work. Keywords: Shift work; health effects; psychosocial effects; disorders

APA, Harvard, Vancouver, ISO, and other styles

44

Pradnya, Kshirsagar. "ENERGY EFFICIENT IMPROVED 4-Bit ALU DESIGN." International Scientific Journal of Engineering and Management 04, no. 04 (2025): 1–9. https://doi.org/10.55041/isjem02789.

Full text

Abstract:

The 4-bit Arithmetic Logic Unit (ALU) is a fundamental component in digital systems, responsible for executing a range of arithmetic and logic operations on 4-bit binary inputs. This ALU design methodology outlines the construction of a 4-bit ALU capable of per- forming operations such as addition, subtraction, bitwise AND, OR, XOR, and bit-shifting (left and right). The architecture utilizes a 4-bit adder/subtractor for arithmetic operations, implementing two’s complement for subtraction. Logic operations are handled through standard logic gates (AND, OR, XOR), while shifting operations are facilitated using shift registers. Control signals, typically a 3-bit in- put, direct the ALU to select the desired operation, with multiplexers employed to choose be- tween different operation results. In addition to the primary computation, the ALU generates flags for zero detection, carry-out, and overflow, providing feedback on the result of operations. This design provides a comprehensive solution for arithmetic and logical computation, essential for various digital processing tasks. Keywords: Arithmetic Logic Unit (ALU), digital logic circuits, combinational logic, multiplexers, Verilog HDL.

APA, Harvard, Vancouver, ISO, and other styles

45

Shen, Luyi. "Bit-Serial Logical Operation Processor Based on Shift Registers and Mealy Machine." Journal of Physics: Conference Series 2435, no. 1 (2023): 012008. http://dx.doi.org/10.1088/1742-6596/2435/1/012008.

Full text

Abstract:

Abstract With the rapid development of modern processors, logical operation processors could not only process data by logical operations but also store the data. The logical operation processor designed in this paper will be the bit-serial logical operation processor. In order to build the processor, four units should be designed first: the Shift Register Unit, Computation Unit, Routing Unit, and Control Unit. Among them, the Register Unit and the Control Unit are the most important. For the Register Unit, there will be two 4-bit registers. For the Control Unit, this circuit will implement a Mealy machine to determine the output and state of the circuit. The input to the processor will first get into the Control Unit, and then the data given outside will be stored in the Shift Register Unit and will be input to the Computation Unit and finally returned to the Shift Register Unit after Routing Unit. Since the processor is operating in series, the Control Unit and the Shift Register Unit should work synchronously.

APA, Harvard, Vancouver, ISO, and other styles

46

McHill, Andrew W., and Kenneth P. Wright. "Cognitive Impairments during the Transition to Working at Night and on Subsequent Night Shifts." Journal of Biological Rhythms 34, no. 4 (2019): 432–46. http://dx.doi.org/10.1177/0748730419848552.

Full text

Abstract:

Demands of modern society force many work operations into the night when the internal circadian timekeeping system is promoting sleep. The combination of disturbed daytime sleep and circadian misalignment, which is common in overnight shift work, decreases cognitive performance, yet how performance may differ across multiple consecutive nights of shift work is not fully understood. Therefore, the primary aim of this study was to use a simulated night-shift protocol to examine the cognitive performance and ratings of sleepiness and clear-headedness across the hours of a typical daytime shift, a first night shift with an afternoon nap and extended wakefulness, and 2 subsequent overnight shifts. We tested the hypothesis that cognitive performance would be worse on the first night shift as compared with the baseline and subsequent nighttime shifts and that performance during nighttime shifts would be reduced as compared with the baseline daytime shift. Fifteen healthy adults (6 men) were studied in the 6-day in-laboratory protocol. Results showed that working during the night increased subjective sleepiness and decreased clear-headedness and performance on the Psychomotor Vigilance Task (i.e., slower median, fastest and slowest reaction times, and increased attentional lapses), Stroop color word task (decreased number of correct responses and slower median reaction time), and calculation addition performance task (decreased number attempted and correct). Furthermore, we observed limited evidence of sleepiness, clear-headedness, or performance adaptation across subsequent nights of simulated night work. Our findings demonstrate that night-shift work, regardless of whether it is the first night shift with a nap and extended wakefulness or subsequent night shifts, decreases performance and clear-headedness as compared with the day shift.

APA, Harvard, Vancouver, ISO, and other styles

47

Mishkin, A. H., D. Limonadi, S. L. Laubach, and D. S. Bass. "Working the Martian night shift - the MER surface operations process." IEEE Robotics & Automation Magazine 13, no. 2 (2006): 46–53. http://dx.doi.org/10.1109/mra.2006.1638015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Jones, Christopher. "Risky business: how remote operations shift the risks of combat." Global Affairs 3, no. 4-5 (2017): 431–40. http://dx.doi.org/10.1080/23340460.2018.1444420.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

D. L. Mitchell, T. V. Gallagher, and R. E. Thomas. "The Human Factors of Implementing Shift Work in Logging Operations." Journal of Agricultural Safety and Health 14, no. 4 (2008): 391–404. http://dx.doi.org/10.13031/2013.25278.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

De Vries, Harwin, and Luk N. Van Wassenhove. "Do Optimization Models for Humanitarian Operations Need a Paradigm Shift?" Production and Operations Management 29, no. 1 (2019): 55–61. http://dx.doi.org/10.1111/poms.13092.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Shift operations'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles