Relevant bibliographies by topics / VDC

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Academic literature on the topic 'VDC'

Author: Grafiati
Published: 4 June 2021
Last updated: 15 February 2022

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Journal articles on the topic "VDC"

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Kumar, Shaji, Ian Flinn, Paul G. Richardson, Parameswaran Hari, Natalie Callander, Stephen J. Noga, A. Keith Stewart, et al. "Randomized, multicenter, phase 2 study (EVOLUTION) of combinations of bortezomib, dexamethasone, cyclophosphamide, and lenalidomide in previously untreated multiple myeloma." Blood 119, no. 19 (May 10, 2012): 4375–82. http://dx.doi.org/10.1182/blood-2011-11-395749.

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Abstract Combinations of bortezomib (V) and dexamethasone (D) with either lenalidomide (R) or cyclophosphamide (C) have shown significant efficacy. This randomized phase 2 trial evaluated VDC, VDR, and VDCR in previously untreated multiple myeloma (MM). Patients received V 1.3 mg/m2 (days 1, 4, 8, 11) and D 40 mg (days 1, 8, 15), with either C 500 mg/m2 (days 1, 8) and R 15 mg (days 1-14; VDCR), R 25 mg (days 1-14; VDR), C 500 mg/m2 (days 1, 8; VDC) or C 500 mg/m2 (days 1, 8, 15; VDC-mod) in 3-week cycles (maximum 8 cycles), followed by maintenance with V 1.3 mg/m2 (days 1, 8, 15, 22) for four 6-week cycles (all arms) ≥ very good partial response was seen in 58%, 51%, 41%, and 53% (complete response rate of 25%, 24%, 22%, and 47%) of patients (VDCR, VDR, VCD, and VCD-mod, respectively); the corresponding 1-year progression-free survival was 86%, 83%, 93%, and 100%, respectively. Common adverse events included hematologic toxicities, peripheral neuropathy, fatigue, and gastrointestinal disturbances. All regimens were highly active and well tolerated in previously untreated MM, and, based on this trial, VDR and VCD-mod are preferred for clinical practice and further comparative testing. No substantial advantage was noted with VDCR over the 3-drug combinations. This trial is registered at www.clinicaltrials.gov (NCT00507442).
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Thompson, J. C., and D. B. Durocher. "Vdc takes on vac." IEEE Industry Applications Magazine 9, no. 3 (May 2003): 56–63. http://dx.doi.org/10.1109/mia.2003.1195684.

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Kumar, Shaji, Ian W. Flinn, Paul G. Richardson, Parameswaran Hari, Natalie Scott Callander, Stephen J. Noga, A. Keith Stewart, et al. "Novel Three- and Four-Drug Combination Regimens of Bortezomib, Dexamethasone, Cyclophosphamide, and Lenalidomide, for Previously Untreated Multiple Myeloma: Results From the Multi-Center, Randomized, Phase 2 EVOLUTION Study." Blood 116, no. 21 (November 19, 2010): 621. http://dx.doi.org/10.1182/blood.v116.21.621.621.

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Abstract Abstract 621 Background: Two- and three-drug regimens incorporating bortezomib (Velcade®, V), lenalidomide (Revlimid®, R), dexamethasone (D), or cyclophosphamide (C) have been shown to be effective and well tolerated in previously untreated multiple myeloma (MM). Combining all four drugs in a single regimen (VDCR) may further enhance efficacy. Published results from the phase 1 dose-escalation portion of the non-comparative, multi-center EVOLUTION study showed that the VDCR regimen was highly active and generally well tolerated (Kumar et al Leukemia 2010). Here we present updated results from the phase 2 portion of the trial, focusing on efficacy and safety of the VDCR, VDR, and VDC regimens. Methods: Previously untreated patients with measurable disease were randomized to one of four treatment groups receiving up to eight 21-d cycles of VDCR (V 1.3 mg/m2 d 1, 4, 8, 11; D 40 mg d 1, 8, 15; R 15 mg d 1–14; C 500 mg/m2 d 1, 8), VDR (VD as in VDCR but with R 25 mg d 1–14), VDC (VDC as in VDCR), or VDC-mod (as for VDC but with an additional dose of C on d 15) as induction therapy, followed by four 42-d maintenance cycles of V 1.3 mg/m2 (d 1, 8, 15, 22) (all treatment arms). Patients eligible for autologous stem cell transplant (SCT) could undergo stem cell mobilization any time after cycle 2 and SCT any time after cycle 4. The primary endpoint was the combined complete response (CR) + very good partial response (VGPR) rate; secondary endpoints included safety/tolerability, time to response, duration of response, progression-free survival, and rate of minimal residual disease (MRD) negativity. Responses were assessed according to International Myeloma Working Group (IMWG) uniform criteria using an automated computer algorithm. Adverse events (AEs) were graded using the CTCAE v3.0. Results: Patient characteristics were similar among the groups with respect to age, performance status, ISS stage, and proportion of patients with high-risk cytogenetic features. Patients received a median of 5, 6, 6, and 6 treatment cycles in the VDCR, VDR, VDC, and VDC-mod arms, respectively; 65%, 60%, 52%, and 47% of patients had dose reductions of any drug. In the VDCR, VDR, VDC, and VDC-mod arms, respectively, 52%, 62%, 58%, and 65% of patients completed treatment; 31%, 43%, 24%, and 41%, respectively, underwent SCT. In the phase 2 response-evaluable patients (n=132), all treatment regimens showed substantial efficacy, with CR+VGPR rates of 59% (VDCR), 50% (VDR), 41% (VDC), and 59% (VDC-mod) (Table) (includes pre-transplant responses only in SCT patients). Of MRD-assessed patients, 46% (21/46) of those who achieved CR (including sCR) or nCR were MRD-negative; 48% (10/21), 75% (9/12), 0% (0/7) and 33% (2/6) in the VDCR, VDR, VDC and VDC-mod arms, respectively. Median time to first response was similar across arms (range 1.6–1.8 months); median time to best response of CR+VGPR was 4.0 months (VDCR), 3.4 months (VDR), 5.1 months (VDC), and 3.1 months (VDC-mod). Median duration of response has not been reached in any arm to date. All treatment regimens were generally well tolerated. In the VDCR, VDR, VDC, and VDC-mod arms, at least one grade ≥3 AE was observed in 81%, 76%, 79%, and 88% of enrolled patients, respectively; serious AEs were experienced by 42%, 40%, 21%, and 41% of patients, and AEs resulting in study discontinuation were reported for 19%, 17%, 12%, and 6% of patients. The five most common all-grade AEs across all treatment groups were fatigue (range 47–67%), nausea (36–67%), constipation (40–62%), diarrhea NOS (42–65%), and neutropenia (19–52%). The incidence of grade ≥3 (grade ≥2) peripheral neuropathy (PN) was 13% (40%) in the VDCR arm, 14% (45%) VDR, 9% (48%) VDC, and 18% (41%) VDC-mod; there was no grade 4 PN. Rates of grade ≥3 neutropenia/thrombocytopenia were 42%/10% for VDCR, 7%/7% VDR, 36%/12% VDC, and 65%/18% VDC-mod. Conclusions: All regimens appear highly active and generally well tolerated in previously untreated MM patients. The four-drug combination did not result in a substantial increase in response rate and was associated with a modest increase in the incidence of hematologic toxicities. Continuous weekly C in the VDC regimen was associated with high response rates and rapid responses, comparable to the VDR and VDCR arms. Outcome data will be presented following longer follow-up. Disclosures: Kumar: Celgene: Consultancy, Research Funding; Millennium: Consultancy, Research Funding; Merck: Consultancy, Research Funding; Novartis: Research Funding; Genzyme: Consultancy, Research Funding; Cephalon: Research Funding; Bayer: Research Funding. Off Label Use: Lenalidomide for treatment of newly diagnosed myeloma. Flinn:Millennium Pharmaceuticals, Inc.: Research Funding. Richardson:Celgene, Millennium, Novartis, Johnson & Johnson: Membership on an entity's Board of Directors or advisory committees. Hari:Celgene: Research Funding. Callander:Millennium Pharmaceuticals, Inc.: Research Funding. Noga:Amgen: Honoraria, Research Funding, Speakers Bureau; Millennium: Consultancy, Honoraria, Research Funding, Speakers Bureau; Ortho-Centicor: Honoraria, Speakers Bureau; Cephalon: Honoraria, Research Funding, Speakers Bureau; Celgene: Honoraria, Research Funding, Speakers Bureau. Stewart:Millennium Pharmaceuticals, Inc.: Honoraria, Research Funding; Celgene: Honoraria. Rifkin:Millennium Pharmaceuticals, Inc.: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene: Speakers Bureau; Amgen: Speakers Bureau; Cephalon: Speakers Bureau; Dendreon: Speakers Bureau. Wolf:Millennium Pharmaceuticals: Consultancy, Honoraria, Speakers Bureau; Genentech and Multiple Myeloma Research: Membership on an entity's Board of Directors or advisory committees; Novartis: Honoraria, Speakers Bureau; OrthoBiotech: Honoraria, Speakers Bureau; Celgene: Honoraria, Speakers Bureau. Estevam:Millennium Pharmaceuticals: Employment. Mulligan:Millennium Pharmaceuticals, Inc.: Employment. Shi:Millennium Pharmaceuticals: Employment. Webb:Millennium Pharmaceuticals: Employment.
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De Bernardis, Flavia, Roberta Lucciarini, Maria Boccanera, Consuelo Amantini, Silvia Arancia, Stefania Morrone, Michela Mosca, Antonio Cassone, and Giorgio Santoni. "Phenotypic and Functional Characterization of Vaginal Dendritic Cells in a Rat Model of Candida albicans Vaginitis." Infection and Immunity 74, no. 7 (July 2006): 4282–94. http://dx.doi.org/10.1128/iai.01714-05.

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ABSTRACT This study analyzes the phenotype of vaginal dendritic cells (VDCs), their antigenic presentation and activation of T-cell cytokine secretion, and their protective role in a rat model of Candida vaginitis. Histological observation demonstrated a significant accumulation of OX62+ VDCs in the mucosal epithelium of Candida albicans-infected rats at the third round of infection. We identified two subsets of OX62+ VDCs differing in the expression of CD4 molecule in both noninfected and Candida-infected rats. The OX62+ CD4+ subset of VDCs displayed a lymphoid cell-like morphology and expressed the T-cell antigen CD5, whereas the OX62+ CD4− VDC subset exhibited a myeloid morphology and was CD5 negative. Candida infection resulted in VDC maturation with enhanced expression of CD80 and CD134L on both CD4+ and CD4− VDC subsets at 2 and 6 weeks after Candida infection. CD5− CD4− CD86− CD80− CD134L+ VDCs from infected, but not noninfected, rats spontaneously released large amounts of interleukin-12 (IL-12) and tumor necrosis factor alpha, whereas all VDC subsets released comparable levels of IL-10 and IL-2 cytokines. Furthermore, OX62+ VDCs from infected rats primed naïve CD4+ T-cell proliferation and release of cytokines, including gamma interferon, IL-2, IL-6, and IL-10, in response to staphylococcal enterotoxin B stimulation in vitro. Adoptive transfer of highly purified OX62+ VDCs from infected rats induced a significant acceleration of fungal clearance compared with that in rats receiving naive VDCs, suggesting a protective role of VDCs in the anti-Candida mucosal immunity. Finally, VDC-mediated protection was associated with their ability to rapidly migrate to the vaginal mucosa and lymph nodes, as assessed by adoptive transfer of OX62+ VDCs labeled with 5 (and 6-)-carboxyfluorescein diacetate succinimidyl ester.
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Kumar, Shaji, Ian W. Flinn, Parameswaran N. Hari, Natalie Callander, Stephen J. Noga, A. Keith Stewart, Jonathan Glass, et al. "Novel Three– and Four–Drug Combinations of Bortezomib, Dexamethasone, Cyclophosphamide, and Lenalidomide, for Newly Diagnosed Multiple Myeloma: Encouraging Results From the Multi-Center, Randomized, Phase 2 EVOLUTION Study." Blood 114, no. 22 (November 20, 2009): 127. http://dx.doi.org/10.1182/blood.v114.22.127.127.

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Abstract Abstract 127 Two- and three-drug regimens incorporating bortezomib (Velcade®, Vc), lenalidomide (Revlimid®, Rev), dexamethasone (Dex), and cyclophosphamide (Cy) (Vc–Dex, Rev–Dex, Vc–Dex–Rev [VDR], and Vc–Dex–Cy [VDC]), have been shown to be effective and well tolerated in previously untreated multiple myeloma (MM). Combining Vc and Dex with Rev and Cy in a novel four-drug regimen (VDCR) may result in even greater activity with improved quality and duration of response. Results from the phase 1 dose-escalation portion of the multi-center EVOLUTION study showed that the VDCR regimen is a highly active and generally well-tolerated induction therapy in previously untreated MM patients (pts). Here we report the efficacy and safety of VDR, VDC, and VDCR from the non-comparative phase 2 portion of the study. Methods: Pts were randomized to receive up to eight 21-d cycles of VDR (Vc 1.3 mg/m2 d 1, 4, 8, 11; Dex 40 mg d 1, 8, 15; Rev 25 mg d 1–14) or VDC (VD as in VDR, plus Cy 500 mg/m2 d 1, 8) or VDCR (VDC plus Rev 15 mg d 1–14) as induction therapy, followed by Vc 1.3 mg/m2 (d 1, 8, 15, 22) for four 42-d maintenance cycles in all treatment arms. Pts received prophylactic antibiotics, acyclovir, transfusion support, and anticoagulants as required. Eligible pts wishing to undergo autologous stem cell transplant (ASCT) could undergo stem cell mobilization any time after cycle 2, and undergo ASCT any time after cycle 4. Response categories were based on the IMWG Criteria with the addition of near complete response (nCR). Adverse events (AEs) were graded using the CTCAE v3.0. Results: In the VDR, VDC, and VDCR arms 42, 32, and 43 pts (including 6 pts treated at the maximum planned dose of Cy (500 mg/m2) from phase 1) have been treated, and 42, 31, and 33 are evaluable for response, respectively, as of data cut-off (31 July 2009). Median ages in the VDR, VDC, and VDCR arms were 60, 62, and 62 years, respectively; 62%, 63%, and 66% had International Staging System stage lI/III disease, and 38%, 25%, and 33% had Karnofsky Performance Status ≤80%, respectively. The median number of VDR, VDC, and VDCR cycles received is 4.5, 6, and 4, respectively (range 1–12). Best unconfirmed response rates are shown in the Table; patients categorized as very good partial response (VGPR) include those who have no measurable M-protein but have not yet had bone marrow assessments to confirm CR/nCR status. The overall rates of treatment-emergent AEs were 95%, 97%, and 88% for the VDR, VDC, and VDCR arms, respectively, with ≥grade 3 reported in 67%, 59%, and 65%. Peripheral neuropathy (PN) was reported as grade 2/3 in 12%/12% in the VDR, 31%/3% in the VDC, and 12%/9% in the VDCR arms; there was no grade 4 PN reported. Grade 3/4 neutropenia was reported in 5%/5%, 28%/13%, and 23%/9% of pts in the VDR, VDC, and VDCR arms, and grade 3/4 thrombocytopenia in 5%/2%, 9%/0%, and 5%/0% of pts, respectively. One case of grade 3 deep-vein thrombosis was reported in the VDCR arm. Overall rates of serious AEs were 24%, 13%, and 37% in the VDR, VDC, and VDCR arms, respectively. Two pts have died in the VDCR arm, both due to renal failure, considered possibly treatment-related. To date, 6 pts have undergone ASCT in the VDR arm, 5 in the VDC arm, and 3 in the VDCR arm. Median CD34+ yield was 4.7, 6.3, and 6.8 × 106/kg in the VDR, VDC, and VDCR arms, respectively. Conclusions: VDR, VDC, and VDCR are highly active and generally well-tolerated regimens in previously untreated MM. Response rates in the VDCR arm appeared somewhat higher than in the VDR and VDC arms at this early time point, although there also appeared to be higher rates of serious AEs, including possible treatment-related mortality in the VDCR arm. Following an interim analysis, dosing in the VDC arm was modified to include Cy on day 15 to examine if this will improve CR rates. Ten pts have been enrolled to date. Disclosures: Kumar: CELGENE: Research Funding; MILLENNIUM: Research Funding; BAYER: Research Funding; GENZYME: Research Funding; NOVARTIS: Research Funding. Flinn:Millennium Pharmaceuticals, Inc.: Membership on an entity's Board of Directors or advisory committees, Research Funding. Hari:Milennium Pharmaceuticals Inc.: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; Celgene: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau. Callander:Millenium: Research Funding. Noga:Millennium Pharmaceuticals: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees. Stewart:Takeda-Millenium, Celgene, Novartis, Amgen: Consultancy; Takeda, Millenium: Research Funding; Genzyme, Celgene, Millenium, Proteolix: Honoraria. Raje:Celgene: Research Funding; Novartis: Research Funding; AstraZeneca: Research Funding. Rifkin:Millennium Pharmaceuticals, Inc: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Amgen: Speakers Bureau; Cephalon: Speakers Bureau. Shi:Millennium Pharmaceutical Inc.: Employment. Webb:Millennium: Employment, Equity Ownership. Richardson:Keryx: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Novartis: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Johnson and Johnson: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Celgene: Consultancy, Membership on an entity's Board of Directors or advisory committees, Speakers Bureau; Millennium Pharmaceuticals, Inc.: Consultancy, Membership on an entity's Board of Directors or advisory committees, Research Funding, Speakers Bureau; BMS: Membership on an entity's Board of Directors or advisory committees, Speakers Bureau.
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Bhusal, SJ, and RB Thapa. "Comparative Study on the Adoption of Improved Beekeeping Technology for Poverty Alleviation." Journal of the Institute of Agriculture and Animal Science 26 (April 1, 2005): 117–25. http://dx.doi.org/10.3126/jiaas.v26i0.664.

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Adoption of improved beekeeping practices was compared between the mobilized (Pragatinagar VDC) and non-mobilized (Makar VDC) farmers’ groups (n = 14 in each VDC) of Nawalparasi district using semistructured questionnaire survey after introducing improved beekeeping practices during 2002/2003. Majority of the households (82.4%) from mobilized group practiced beekeeping enterprise of which 80.6% followed improved practices with adoption index of 77.44% while from non-mobilized group only 56.0% adopted beekeeping enterprise and 68.4% followed improved beekeeping practices only with the adoption index of 58.73%. Annual honey yield per colony was significantly higher among mobilized farmers’ group (25.6 kg earning NRs 25,657.14) than that of non-mobilized farmers’ group (15.6 kg earning NRs 10,364.29). Women involvement was low in enterprise development and adoption in both VDCs (31.8% and 50.0% in mobilized VDC; and 35.7% and 48.2% in non-mobilized VDC). Therefore, transfer of improved technology to subsistence farmers emphasizing women through social mobilization could help generate income and alleviate poverty. Key words: Beekeeping, social mobilization, adoption index, gender, income J. Inst. Agric. Anim. Sci. 26:117-125 (2005)
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Albar, Albar, Ifni Joi, and Rozi Helmudyra. "Prototype Pendeteksi Kebocoran Gas LPG Pada Gudang Penyimpanan Gas LPG Berbasis Mikrokontroler." Elektron : Jurnal Ilmiah 9, no. 2 (December 30, 2017): 1–4. http://dx.doi.org/10.30630/eji.9.2.88.

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Tujuan dilakukannya penelitian ini adalah membuat sebuah alat yang dapat mendeteksi kebocoran gas LPG pada gudang penyimpanan gas LPG. Alat yang dibuat menggunakan arduino sebagai kontroller dan sensor MQ-2 untuk mendeteksi kebocoran gas LPG. Modul GSM sim800L berfungsi mengirimkan sms kepada operator jika mendeteksi gas LPG di udara. Hasil pengujian menunjukkan sensor mendeteksi adanya gas LPG, tegangan output sensor sebesar 0.95 Vdc.Saat sensor tidak mendeteksi gas LPG tengan output sensor sebesar 0,35 Vdc. Sim800L membutuhkan tegangan Vcc sebesar 5 Vdc untuk dapat berfungsi. Pin TX memiliki tegangan 4,2Vdc untuk mengirimkan SMS dengan kondisi ada bahaya gas dan 4,4 Vdc saat SMS tidak terkirim.
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Wang, Shuo, Zhiqiang Zhou, Hongjie Zhang, and Jing Li. "Nxt-Freedom: Considering VDC-Based Fairness in Enforcing Bandwidth Guarantees in Cloud Datacenter." Applied Sciences 10, no. 21 (November 6, 2020): 7874. http://dx.doi.org/10.3390/app10217874.

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In the cloud datacenter, for the multi-tenant model, network resources should be fairly allocated among VDCs (virtual datacenters). Conventionally, the allocation of cloud network resources is on a best-effort basis, so the specific information of network resource allocation is unclear. Previous research has either aimed to provide minimum bandwidth guarantee, or focused on realizing work conservation according to the VM-to-VM (virtual machine to virtual machine) flow policy or per-source policy, or both policies. However, they failed to consider allocating redundant bandwidth among VDCs in a fair way. This paper presents a bandwidth that guarantees enforcement framework NXT-Freedom, and this framework allocates the network resources on the basis of per-VDC fairness, which can achieve work conservation. In order to guarantee per-VDC fair allocation, a hierarchical max–min fairness algorithm is put forward in this paper. In order to ensure that the framework can be applied to non-congestion-free network core and achieve scalability, NXT-Freedom decouples the computation of per-VDC allocation from the execution of allocation, but it brings some CPU overheads resulting from bandwidth enforcement. We observe that there is no need to enforce the non-blocking virtual network. Leveraging this observation, we distinguish the virtual network type of VDC to eliminate part of the CPU overheads. The evaluation results of a prototype prove that NXT-Freedom can achieve the isolation of per-VDC performance, which also shows fast adaption to flow variation in cloud datacenter.
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Pokhrel, Chandra P., Arbindra Timilsina, Rajib Khanal, Kazuo Ando, and Ram Kailash P. Yadav. "Biodiversity in Agroforestry Systems: A Case Study in Homegardens of Gulmi and Palpa Districts, Western Nepal." Journal of Institute of Science and Technology 20, no. 1 (November 25, 2015): 87–96. http://dx.doi.org/10.3126/jist.v20i1.13915.

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Homegardens are important part of an agroecosystem, which has long been practiced in Nepalese farming systems but poorly studied. This study identified the diversity of plant species of 73 homegardens of Hastichaur Village Development Committee (VDC), Gulmi district and 43 homegardens of Siddheshwor VDC, Palpa district. A total of 110 different plant species were recorded within three layers i.e. top layer (3-15m), middle layer (1-3 m) and ground layer (up to 1m). Species richness in the Hastichaur was higher (90) than Siddheshwor (73) VDC; in contrast species evenness was higher in Siddheshwor than Hastichaur. The bigger sized homegardens (average size was 250 m²) belong to Brahmin and Chhetri and recorded the highest plant species diversity (1.791) and species richness (90). In contrast, smaller sized homegardens (average size was 80 m²) belong to Dalit community and recorded the lowest diversity (1.696) and species richness (60) of the plants. The presence of the vegetable species, Zingiber officinale and Capsicum annuum was highest (95%) in Siddheswor VDC and annuum (85%) was highest in Hastichaur VDC. The presence of medicinal plants was very low in both VDCs. The trend of plant species richness showed was as Brahmin/Chettri > Magar > Kumal > Dalit in Hastichaur and as Brahmin/Chettri > Kumal > Magar > Dalit in Siddheshwor VDCs.Journal of Institute of Science and Technology, 2015, 20(1): 87-96
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Ma, Xiao, Zhongbao Zhang, and Sen Su. "Energy-Aware Virtual Data Center Migration." Journal of Advanced Computational Intelligence and Intelligent Informatics 23, no. 2 (March 20, 2019): 209–18. http://dx.doi.org/10.20965/jaciii.2019.p0209.

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Recently, the concept of virtual data center (VDC) has attracted significant attention from researchers. VDC is made up of virtual nodes and virtual links with guaranteed bandwidth. It offers elasticity and flexibility, which means VDC can adjust resources dynamically according to different requirements. Existing studies focus on how to design the optimal embedding algorithm to achieve high success rate for the virtual data center request. However, due to the resource of physical data center changes over time, the optimal solution may become sub-optimal. In this paper, we study the problem of virtual data center migration and propose an energy-aware virtual data center migration algorithm, called CA-VDCM-ACO. This novel algorithm leverages the migration technique to further reduce the energy consumption with the success rate for the physical data center guaranteed. The extensive experiments show that our algorithm is very effective to reduce the energy consumption.
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Dissertations / Theses on the topic "VDC"

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Shakir, Anmar, and Romeo Eileia. "Informationshantering med VDC." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-29629.

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Stefan, Persson. "Arbetsmiljö i VDC : 4D-simulering för tillämpning av VDC vid arbete med skyddsräcken." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-122210.

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Virtual Design and Construction är något som NCC ligger i framkant med och det är en position de vill stärka i sin strategi för kommande år. Arbetsmiljö är även det en sådan sak som ligger högt på listan där. Genom att kombinera dessa två ska det då förhoppningsvis vara möjligt att använda VDC integrerat med arbetsmiljön i ett led till att minska på olyckor på arbetsplatserna.   Syftet med detta projekt har därför varit att undersöka på vilka sätt som det är möjligt att arbeta med VDC och arbetsmiljöfrågor. Genom att använda programvaror som kan tillämpa VDC kunde då en 4D-simulering möjliggöras. Arbetet med att sätta upp simuleringen har under arbetsgången analyserats vilket har lett till att syftet kunde besvaras.   Resultatet av arbetet visar på att det finns ett antal olika sätt som det är möjligt att använda VDC i arbetsmiljöfrågor. Där är planering och visualisering de viktigaste resultaten. Genom att simulera hur en byggnad konstrueras går det då att upptäcka eventuella riskmoment i förtid och på så sätt blir det en bättre planering.
Virtual Design and Construction is a work process in which NCC are in the front seat.   It's a position they would like to strengthen with their company strategy for the coming years. Working enviroment is also a matter of high priority within the strategy. By combining these two matters it will then hopefully be possible to use VDC integrated with the working environment in part to the reduction of accidents at the construction sites.   The purpose of this project has been to examine the ways in which it is possible to work with VDC and safety issues. By using software that can implement VDC a 4D simulation  was made possible. The process to set up the simulation was analyzed, which led to the results that could put answers to the purpose.   The result of the work shows that there are a number of ways where it is possible to use the VDC combined with working enviroment. In which planning and visualization are some of the key results. By simulating the construction of a building it is possible to detect risk factors that could emerge during the process of construction and by that obtain a better planning tool.
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Lyckeborn, Sofia, and Esra Raof. "Implementering av VDC i produktionen." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-74944.

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Byggsektorn har brottats med flertal problem såsom låg produktivitet, kvalitetsbrister och höga byggkostnader. På senare tid har företag börjat satsat på nya arbetssätt som med hjälp av tekniken gör det möjligt att minska dessa problem. Ett arbetssätt som ska minska dessa problem är VDC, Virtual Design and Construction. Syftet med denna studie är att undersöka ifall VDC gynnar produktionen samt vilka hinder man kan stöta på inom VDC. Undersökningen kommer utföras med hjälp av litteraturstudier och via intervjuer med personer av relevant utbildning eller som är arbetsförande på marknaden. För att undvika fall av fel information kommer undersökningen att kompletteras med litteraturstudier av böcker, artiklar, rapporter samt företagssidor. VDC är ett arbetssätt som bland annat går ut på att alla parter arbetar ständigt med varandra under byggprocessen. VDC i produktionen förbättrar bland annat kommunikationen, slutprodukten och arbetsplatsen i form av bättre kvalite och arbetsmiljö. Hinder som kan förekomma i produktionen är att den äldre generationen inte är redo för en sådan avancerad teknik. Med en kortare utbildning och uppmuntran så bör alla yrkesarbetare kunna hantera en 3D-modell. Undersökningar visar att impementering av VDC i produktionen skulle ge positiva framgångar. Yrkesarbetarna skulle bli mer delaktiga och få en större förståelse för projektet, vilket ger bland annat en förbättrad slutprodukt.
The construction sector has struggled with some problems such as low productivity, lack of quality and high construction costs. Recently, companies have started investing in new ways of working, that with the help of the technology and make it possible to reduce these problems. One way to reduce these problems is through VDC, Virtual Design and Construction. The purpose of this study is to investigate whether VDC support production in a positive way and what type of blocks you can bump into using VDC. Literature studies and interview studies will be conducted with experts in order to answer the purpose of this study. This report is limited to production. In order for the information not to be incorrect, we have chosen to do literature studies on books, articles, reports and company pages. VDC is a working method where all the parties work continuosly with each other during the process. VDC in production improves communication, workplace, end product and more. Obstacles that may occur in production are that the older generation is not ready for such advanced technology. With a shorter education and encouragement, all workers should be able to handle a 3D model. Studies show that VDC impregnation in production would produce positive results. The skilled workers would be more involved and gain a greater understanding of the project, which among other things provides an improved end product.
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Hedström, Amanda, and Stefan Längberg. "VDC-inspirerat arbetssätt i kommunen." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-31553.

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Buildings become more complex and society is constantly evolving. More and more specialized operators join the construction industry, which increases the need for effective interaction between them. Focus should be on communication and an intersectoral cooperation must be taken into use. New ways of working together that promotes interaction in order to streamline the construction process should be developed. The municipality plays an important and central role in order to push forward the social development. The aim of the study is to investigate how an VDCinspired approach can develop the municipal process in the urban development process, in order to make the planning process in early stages until the design phase more efficient. To achieve the goal, interviews with employees within the construction company NCC and the municipalities of Norrköping, Linköping and Örebro has been done. Once the empirical data was collected from the interviews it was analyzed together with this thesis theoretical framework. Today, BIM is not used in the municipalities the same extent as NCC. The municipalities do not have the same need for information and coordination of their digital models. The 3D models they work with usually consist of 3D volumes, where volume relationships and correlations are the most important information conveyed. However, it is clear that the municipality work in project teams that can be developed and made more efficient. Today, the municipalities already work in teams, where they benefit from the collective expertise. To implement project studio as a VDC inspired approach may ultimately create a closer collaboration and help reduce communication problems internally. In order for the municipality to work VDC-inspired they must first find out what type of information in a BIM model they consider relevant and interesting. Furthermore, a high level of technical expertise is required among the employees to allow an implementation of VDC. The thesis has investigated a VDC application in the early stages until project design stage. Furthermore, the study was limited to the municipality's urban planning office. Data collection has only occurred through interviews.
I takt med att byggnader blir mer komplexa och samhället ständigt utvecklas får byggbranschen allt fler specialinriktade aktörer, vilket ytterligare ökar behovet av fungerande samspel mellan aktörerna. Kommunikationen behöver stå i fokus och ett branschöverskridande samarbete måste tas i bruk. Nya arbetssätt som främjar samverkan bör tas fram för att effektivisera byggprocessen mera. Där spelar kommunen en viktig och central roll för att driva på samhällsutvecklingen. Målet med examensarbetet är att undersöka hur ett VDC-inspirerat arbetssätt kan utveckla kommunens process i stadsbyggnadsprocessen för att effektivisera planprocessens tidiga skeden fram till projektering. För att uppnå målet har intervjuer med tjänstemän från NCC och kommunerna Norrköping, Linköping och Örebro genomförts. Det empiriska data som insamlats har sedan analyserats tillsammans med examensarbetets teoretiska ramverk. Resultatet visar på att kommunerna i dagsläget inte arbetar med BIM i samma omfattning som NCC. Kommunerna har inte samma behov av informationshantering och samordning av digitala modeller. Kommunernas 3D-modeller består oftast av 3Dvolymer, där volymförhållanden och samband är den viktigaste informationen som förmedlas. Däremot konstateras att kommunens arbetssätt i projektgrupper går att utveckla och göras mer effektiv. Idag arbetar kommunerna redan i team där de drar nytta av den kollektiva kompetensen. Att implementera projektstudio som ett VDCinspirerat arbetssätt kan i förlängningen skapa ett tätare samarbete och bidra till att minska kommunikationsproblem internt. För att kommunen ska kunna arbeta VDC-inspirerat bör först en kartläggning av vilken typ av information i en BIM-modell som kommunen anser relevant och intressant för dem. Vidare krävs också en hög teknisk kompetens bland tjänstemännen för att möjliggöra en implementering av VDC. Examensarbetet har undersökt en VDC tillämpning i tidiga skeden fram till projektering. Vidare har arbetet avgränsats sig till kommunens stadsbyggnadskontor. Datainsamlingen har endast skett genom besöksintervjuer.
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5

Appelberg, Emelie, and Maria Bremberg. "Effektivisering av byggproduktion med VDC och förstärkt verklighet : Streamlining construction work with VDC and augmented reality." Thesis, KTH, Byggvetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-123797.

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Virtual Design and Construction (VDC) is currently used more and more within construction design and planning as well as construction as a streamlining tool aiming to improve communication and decrease the number of construction defects. VDC is constantly developing, but what comes next? The augmented reality (AR) technology is currently not used within construction in Sweden but should be considered as the next step in line regarding the integration of reality and digital information. Using this technology design can become reality even before it’s actually built. The purpose of this study has been to carry out an inventory of the existing AR technology and its shortcomings, and also to identify possible applications within the construction phase. VDC has also been investigated in order to identify the weaknesses in this technology and an assessment has been made as to how these can be eliminated and hence how VDC can be improved. Based on that this thesis has been carried out with the following main question: How can augmented reality be implemented in the construction industry and how can it become integrated with VDC in order to achieve a streamlining effect in construction? The theoretical background is based on a literature study where information about augmented reality has been collected from technical reports from all over the world. A study of the technology behind augmented reality and its possible areas of application as well as a description of the future possibilities and ongoing research has been made. VDC has only briefly been examined in the literature study. Interviews with construction staff and experts within AR and VDC have been conducted in order to obtain a basis for an analysis of the current situation. Based on these interviews gains and shortcomings of the VDC technology have been identified, and requests for the AR technology’s future applications have been plotted. The result of the literature study is that a positioning technique that is more accurate and more robust than the ones on the market today needs to be developed in order for the AR-technology to work properly. There are a number of beneficial areas of application for AR in construction given that the previously mentioned problem is overcome. VDC in construction brings substantial benefits in terms of financial and time savings. It serves the communication between design and construction. AR will be easier to use for marketing purposes and early stages of projects than in construction. As for VDC more focus needs to be put on the implementation of the technology to a broader crowd rather than developing the technology further in a small group of experts. In order for augmented reality to be implemented in the construction industry VDC and its support need to be further developed towards construction before yet another technology is introduced. Augmented reality will not solve the shortcomings of VDC today.
I dagsläget används Virtual Design and Construction (VDC) mer och mer inom byggprojektering såväl som inom byggproduktion som ett effektiviserande arbetssätt för att förbättra kommunikation och minska byggnadsfel. VDC är under ständig utveckling, men vad kommer efter denna? Förstärkt verklighet (AR, eng. Augmented Reality) används i dagsläget inte i byggproduktion i Sverige men ses som nästa steg i ledet av integrering av verklighet och digital information. Med hjälp av denna teknik kan projektering bli verklighet innan det är byggt. Syftet med denna studie har varit att inventera existerande AR-teknik, dess brister samt att kartlägga möjliga användningsområden inom byggproduktion. VDC har även undersökts för att identifiera denna tekniks svagheter och en bedömning av hur dessa kan avhjälpas och VDC förbättras har gjorts. Utifrån detta har arbetet utförts utifrån följande huvudfrågeställning; Hur kan AR-teknik implementeras i byggbranschen och hur kan den integreras med VDC för att uppnå en effektivisering i byggproduktionen? Teoribakgrunden bygger på en litteraturstudie där information om AR-teknik från tekniska rapporter inhämtats. En studie av tekniken bakom Augmented Reality och dess möjliga tillämpningsområden inom byggproduktion har gjorts, samtidigt som framtida möjligheter och pågående forskning har beskrivits. VDC har endast undersökts flyktigt i litteraturstudien. Intervjuer har genomförts med produktionspersonal och sakkunniga inom VDC och AR för att erhålla underlag för en nulägesanalys. Utifrån intervjuerna har nytta och brister med VDC-tekniken kunnat utrönas, samtidigt som önskemål på AR-teknikens framtida tillämpning har kunnat kartläggas. Resultatet av litteraturstudien är att en positioneringsteknik som är noggrannare och mer robust än de som finns idag måste utvecklas för att AR-tekniken ska fungera i syftet. Det finns ett flertal fördelaktiga tillämpningsområden för AR i byggproduktion förutsatt att ovanstående problem övervinns. VDC i produktion innebär stora fördelar i form av ekonomiska och tidsmässiga besparingar. Det främjar kommunikationen mellan projektering och produktion. AR kommer att vara lättare att använda i marknadsföringssyfte och i tidiga skeden än i produktion. Vad gäller VDC behöver mer fokus läggas på att implementera tekniken till den stora massan istället för att utveckla tekniken ytterligare i en liten expertgrupp. För att AR-tekniken ska kunna implementeras i byggbranschen bör VDC-tekniken och dess stöd först utvecklas fullt ut mot produktion innan ytterligare en teknik introduceras då denna inte kommer att åtgärda de brister med VDC som finns idag.
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Teixeira, Herberto. "VDC implementation in transport infrastructure projects." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for industriell økonomi og teknologiledelse, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-25807.

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Due to the accusation that construction industry have low efficiency levels, relatively poor profit margins, and problems with quality when compared with other manufacturing industries, Virtual Design and Construction (VDC) methodology, which has been mostly developed by the Centre for Integrated Facility Engineering (CIFE) at Stanford University, is seen as a potential tool to overcome such problems.VDC aims to provide effective means of adequately integrate multidisciplinary information required for the project design, planning and construction phases. The contribution of such tolls in construction projects may have different performances and implementations according to the project type and therefore the challenges faced by the project manager as well.By adopting VDC, it may bring to firms benefits regarding project coordination, integration and decision making, planning, review and communication processes during the design and construction life cycle.Full implementation and application of VDC and proper practice is yet to be achieved in Architecture, Engineering and Construction (AEC) industry. The challenges regarding transport infrastructure projects still persist and seem to be bigger when compared to building projects. Some uncertainty remains however within the industry towards VDC and therefore impediments which firms have been facing are assessed in order to allow VDC applicability in their business models.
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Landare, Maja, and Daniel López. "VDC-Metrics : Utveckling av ett mätverktyg." Thesis, KTH, Byggteknik och design, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149474.

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Med BIM- (Building Information Modeling) är målet att effektivisera anläggningsbranschen i Sverige. För att BIM ska uppfylla dessa mål och generera maximal lönsamhet måste arbetsmetodiken anpassas därtill.  VDC – Viritual Design and Construction, är en koordinerad projektmetodik där BIM tillämpas på organisation, process och produkt. Hur denna metodik, VDC, ska utnyttjas och användas för att generera så stor lönsamhet som möjligt är en intressant och komplex fråga. Det är därför av stor vikt att ha en förståelse för de olika delarna i metoden, och hur de samverkar med varandra. Studiens syfte är att med utgångspunkt i VDC-Scorecard undersöka vad som kan mätas i denna metod för att få fram ett mått på arbetets effektivitet. Genom att anpassa VDC-Scorecard till projekteringsskedet i anläggningsbranschen och sedan konvertera det, ska arbetets effektivitet i uppdrag hos Sweco Civil kunna mätas.  Studien behandlar forskning kring VDC- Scorecard, vilken kopplas samman med en fallstudie över VDC- arbetet på Sweco. Resultatet av studien visar på delar som konsultföretaget kan påverka för att effektivisera sitt arbete och därför är relevanta att mäta. Resultatet visar även på vad man kan mäta under delarna samt vilka samband som finns dem emellan. Detta sammanställs i VDC- Metrics. “Measurement is the first step that leads to control and eventually to improvement. If you can´t measure something, you can´t understand it. If you can´t understand it, you can´t control it. If you can´t control it, you can´t improve it.” – H. James Harrington
Is BIM- (Building Information Modeling) used in the most efficient and practical way in the infrastructure industry today? The difficulty in implementing BIM as a method throughout the process and organization in an industry that always relied on its traditions is one of the main subjects of the Swedish Transport Administration. Therefore they have elaborated a long-term plan with a primer objective that in the year 2015 have established a requirement that there future project shall require a certain involvement of BIM. What if there was a measurement tool that could evaluate all the aspects of a project using BIM as a tool and then compare it to other projects in purpose to value where in the organization, technology and process things could have been better. Wouldn’t the process and all aspects of it evolve a lot faster if conclusions could be drawn of the up- and downsides on earlier projects and experiences could be gained from other practices? In USA such a tool has been developed and named the VDC- (Virtual Design and Construction) Scorecard which was created by researchers working for CIFE (Center for Integrated Engineering) in Stanford University. With grander influence as a helping tool for that industry it´s in the authors interests to create a similar tool, but different in the way that it would be adapted to a particular part of the process; the projecting. This could later on be in great use for the consultant company to who the authors are collaborating with. The objective must be to create a measurement tool that in a neutral manner can value both the project in general and the importance of each aspect. By study how the VDC Scorecard was built and immerse into the general projecting process of infrastructure projects a fundament for this measurement tool will be built.
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Olander, Anders. "VDC i anbud : En intervjustudie av anbudsprocessen för byggentreprenörer." Thesis, Luleå tekniska universitet, Industriellt och hållbart byggande, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-82858.

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Byggsektorn i Sverige omsätter idag över 500 miljarder kronor. Samtidigt ses byggbranschenvara ineffektiv och svårföränderlig, enbart i Sverige uppges bristande kommunikation ibyggprocessen fördyra större byggprojekt med 32 miljarder kr/år. Detta har gett upphov tillnya metoder för att försöka motverka denna trend. En av dessa är Virtual Design andConstruction (VDC). VDC är en arbetsmetod som fokuserar på förbättrad kommunikationoch samarbete inom och mellan olika faser i byggprojekt. Studien fokuserar på VDCanvändning i anbudsskedet i husbyggnadsprojekt. Det finns idag få studier kring VDC isamband med anbud, samtidigt har VDC visat fördelar i andra delar av byggprojekt, somprojekteringsskedet.Syftet med arbetet är därför att öka förståelsen för utmaningar i anbudsprocessen sett tillinformationshantering och vilka typer av VDC-moment som eventuellt används idag samtom det finns drivkrafter till användning av VDC-verktyg för att effektivisera processen.För att uppfylla syftet har en semi-strukturerad intervjustudie nyttjats för att beskrivanuläget och ge ökad förståelse för problemet. En kvalitativ metod har nyttjats för attmöjliggöra insamling av empiriska data från ett begränsat antal intervjuer med tjänstemäninom ett byggföretag som är representativt för byggbranschen och har erfarenhet kringanbudsarbete inom husbyggnadsprojekt.Studien visar att den största utmaningen i anbudsprocessen idag är vilken detaljnivå man skaha vid beräkning av kostnaderna och hur det förmedlas till deltagarna. Detta är avgörandeför att kunna hålla tidplanen och även budget för anbudet. Även hur informationen somåterfinns i kalkylen förmedlas till de som inte tagit fram den upplevs vara en utmaning. Demoment som används i anbudsprocessen idag som går i linje med det VDC förordar ärnyckeldata som används till beräkningsparametrar vid framtagande av jämförelsekostnader,simuleringar av risker för beslutsfattning och kontinuerligt samarbete i ett och samma rumför att minska svarstider på frågor. Drivkrafterna till VDC-användning i anbudsprocessen somframkommit är att användning av ICE samt Big room under anbudsarbeten som pågår fleramånader och där en större mängd projektering ingår kan öka engagemanget,kommunikationen och därmed effektiviteten. Företaget nyttjar redan ICE efter vunnetkontrakt så användning i anbudsskedet skulle skapa en röd tråd genom större del av projekt.Huvudsakliga rekommendationen till företaget är att tillsätta resurser i utvalda anbud föranvändning av VDC-moment samt att specificera i den standardsierade arbetsberedningenvid vilka typer av anbud dessa medel bör nyttjas.
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Karlsson, Sara. "Implementering av VDC : En studie utförd på Veidekke Entreprenad AB." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-68032.

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A lot of companies are investing in new working methods and technical innovations that is developed to improve productivity in the construction industry and to make it more efficient. One of these innovations is a working method called VDC, Virtual Design and Construction. A project called Sörredsmotet is a design-build project with Veidekke Entreprenad AB as a design-build contractor. The client of the project is Trafikverket. One of the ambitions with the project is to use VDC in the design phase of the project. The purpose with this study is to in cooperation with Veidekke examine how the working method is implemented on the project, what conditions are needed to implement VDC and also how VDC affects designers. The research questions are: I. How has the working method VDC been implemented on the project Sörredsmotet? II. What conditions are needed to implement VDC? III. How does the working method affect designers? To answer the research questions three studies have been carried out; a literature study based on earlier research, observations of design meeting and VDC-network meetings and an interview study with 18 respondents. One demarcation for the study is to examine the VDC in design phase only. Conclusion for the first research question is that the project works partially with VDC, but the working method cannot be considered as implemented on the project. One ambition was to carry out the design phase with ICE-sessions, but organization and working method for external organization made it difficult to gather the right people and to make decisions on meetings. The layout was changed to have design meetings inspired by ICE methodology instead of ICEsessions. Part of the design is made in a cloud based 3D-model while other parts of the design is made in 2D. Veidekke has developed a visualization model for the project. It requires both organizational conditions and conditions for individuals to start using the working method. Due to the construction industry’s project -based structure many so-called innovators and early appliers are requ ired. It is necessary to look at the project’s prerequisites and to make plans about the project’s goals, how to achieve the goals, what is needed to achieve them and to make the reason for the change clear. To get as good prerequisites as possible, both for internal and possible external organization, this should be done at an early stage of the projects. Motivation is also important for implementation of the working method. New skills that may be required are mainly concerning models. For designers the working method means that the workflow changes when work is done with BIM, Building Information Model, which is a tool in VDC. More planning and communication is required when working with BIM. To work model-oriented instead of working with 2Ddrawings requires different ways to think. There are a lot of challenges working with BIM, but also many advantages, mainly in projects that requires a lot of coordination.
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Berggren, Oscar, and Emil Lundgren. "Ökad detaljeringsgrad i ByggnadsInformationsModellen : BIM-laboration om virtuell uppregling av gipsväggar som ett sätt att spara resurser." Thesis, KTH, Byggteknik och design, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-101679.

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Målet med examensarbetet är att svara på frågan: "Är det resurssparande att öka detaljeringsgraden i BIM-modellen genom virtuellt uppreglade gipsväggar?" Rapporten behandlar en BIM-laboration som genomförts i samarbete med NCC i projektet Signalfabriken i Sundbyberg. Med programmet Lindab Revit Tools (LRT) reglades gipsväggar upp virtuellt och adderades till projektets byggnadsinformationsmodell (BIM). Materialet kvalitetssäkrades vid samgranskningsmöten och användes för att generera A3-handlingar för test i produktion. Testet och handlingen diskuterades med representanter från olika delar av byggprocessen och en reviderad handling utvecklades samt godkändes. Laborationen upprepades med syftet att effektivisera processen och erfarenheterna från detta ledde till att frågeställningen fick följande svar: Ja, om endast komplicerade områden modelleras. Ja, för hela modellen om programvaran utvecklas.Nej, om LRT används för att virtuellt regla upp alla gipsväggar i projektet. Förutom dessa svar innehåller rapporten ett förslag på A3-handling som optimerats för användning i produktion. En lista på rekommenderade förändringar i programvaran. En beskrivning av hela processen för ett område där resursåtgången angetts i tid. Denna rapport riktar sig till läsare med byggingenjörsexamen eller motsvarande kunskapsnivå.
This report aims to answer the question: "Can an increased level of detail in the Building Information Model by virtually constructed framing for drywalls save resources?" The report concerns a BIM laboration conducted in collaboration with NCC in the project Signalfabriken in Sundbyberg. Lindab Revit Tools (LRT) was used to virtually construct framing for drywalls that was added to the building information model of the project. The virtual material was subject to clash detection analysis and then used to generate A3-sheets for use in the production line. The result of this test and the quality of the sheet was discussed by representatives from different parts of the construction process. A revised sheet was formed from this discussion and then approved by NCC. The process was repeated to find the most efficient process and the experiences from this led to these answers for the original question: Yes, when only complex areas are modeledYes, if all areas are modeled and LRT is improvedNo, if LRT is used to virtually construct all dry walls in the project Besides these answers the report includes: a suggestion for a sheet optimized for use in the production line, a list of improvements for LRT and a description of the process in full for a curtain area together with the details of how much time resources were spent. This report is directed towards construction engineers and readers with equivalent level of knowledge.
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Books on the topic "VDC"

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Công ty điện toán và truyền sử liệu (Vietnam). Những kỷ niệm sâu sắc VDC, 06.12.1989-06.12.2009. Hà Nội]: Công ty điện toán và truyền số liệu, 2009.

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Intensive Study & Research Centre (Kathmandu, Nepal), ed. District and VDC profile of Nepal: A socio-economic development database of Nepal. Kathmandu: Intensive Study and Research Centre, 2010.

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Intensive Study & Research Centre (Kathmandu, Nepal), ed. District & VDC profile of Nepal 2013: A socio-economic development database of Nepal. Kathmandu: Intensive Study and Research Center, 2013.

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Krishna, Suwal Madan, and IUCN Nepal, eds. Hydrogeological study in Bangsing Deurali VDC, Syangja: An ecosystem-based adaptation in mountain ecosystem in Nepal. Lalitpur, Nepal: IUCN Nepal, 2013.

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Nepal, IUCN, ed. Biodiversity resource inventory ecosystem assessment of Bhadaure Tamagi VDC, Kaski: An ecosystem-based adaptation in mountain ecosystem in Nepal. Lalitpur: IUCN Nepal, 2013.

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Karn, Sujeet. Coping with risks and managing livelihoods: Migration and household economy in rural Nepal, a micro level study of Raghunathpur VDC. Dhaka: Refugee and Migratory Movements Research Unit, 2006.

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author, Acharya Ram P., and IUCN Nepal, eds. Impact assessment of invasive plant species in selected ecosystems of Bhadaure Tamagi VDC, Kaski: An ecosystem-based adaptation in mountain ecosystem in Nepal. Lalitpur: IUCN Nepal, 2013.

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Ingenieure, Verein Deutscher. Leistungs- und Lastbedarfssteuerung: VDI/VDE/GfPE-Tagung in Schliersee am 2./3. Mai 1989. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989.

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Germany), VDI-VDE-GFPE-Tagung (1989 Schliersee. Leistungs- und Lastbedarfssteuerung: VDI/VDE/GfPE-Tagung in Schliersee am 2./3. Mai 1989. Berlin: Springer-Verlag, 1989.

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Anglada, Marie Angels. Vic. Sabadell: Editorial AUSA, 1990.

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Book chapters on the topic "VDC"

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Bainbridge, I. F., J. A. Taylor, and A. K. Dahle. "Surface Formation on VDC Casting." In Essential Readings in Light Metals, 783–88. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118647783.ch98.

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Bainbridge, I. F., J. A. Taylor, and A. K. Dahle. "Surface Formation on VDC Casting." In Essential Readings in Light Metals, 783–88. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-48228-6_98.

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Hjelseth, E., and M. Fischer. "Experiences from large scale VDC-education in Norway." In ECPPM 2021 – eWork and eBusiness in Architecture, Engineering and Construction, 465–70. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003191476-63.

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Bhattarai, Bikas Chandra, and Ananta Man Singh Pradhan. "A Case Study on Landslide Hazard Mapping in Changunarayan VDC, Nepal." In Landslide Science and Practice, 551–59. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-31325-7_72.

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Baker, P. W., and J. F. Grandfield. "The Role of Surface Tension Forces in Gas Pressurized VDC Casting." In Aluminium Cast House Technology, 195–204. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118806364.ch19.

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Runde, Christoph. "Enhancing the Virtual Concurrent Engineering by Networks: The VDC Use Case." In Concurrent Engineering Approaches for Sustainable Product Development in a Multi-Disciplinary Environment, 85–94. London: Springer London, 2012. http://dx.doi.org/10.1007/978-1-4471-4426-7_8.

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Lück, Manfred. "Automatic “Bleed Out” Detection and Plug off in VDC Billet Casting." In Continuous Casting, 300–301. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527607331.ch44.

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Ha, Hyunuk, Jongmoo Kim, and Jangmyung Lee. "VDC of In-Wheel EV Simulation Based on Precise Wheel Torque Control." In Intelligent Robotics and Applications, 45–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40852-6_7.

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Ahmad, S. B. S., and E. Hjelseth. "The practice of VDC framework as a performance measurement system for projects." In ECPPM 2021 – eWork and eBusiness in Architecture, Engineering and Construction, 495–501. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003191476-67.

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Pravdic, Franka, Dietmar Leitlmeier, Christian Wögerer, Gerhard Traxler, and Herbert Hubbauer. "Vertical Direct Chill (VDC) Casting of Magnesium - Optimized Casting Parameters and Safety Issues." In Magnesium, 675–80. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527603565.ch107.

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Conference papers on the topic "VDC"

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Bayless, Sam, Nodir Kodirov, Ivan Beschastnikh, Holger H. Hoos, and Alan J. Hu. "Scalable Constraint-based Virtual Data Center Allocation." In Twenty-Sixth International Joint Conference on Artificial Intelligence. California: International Joint Conferences on Artificial Intelligence Organization, 2017. http://dx.doi.org/10.24963/ijcai.2017/77.

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Constraint-based techniques can solve challenging problems arising from highly diverse applications. This paper considers the problem of virtual data center (VDC) allocation, an important, emerging challenge for modern data center operators. To solve this problem, we introduce NETSOLVER, which is based on the general-purpose constraint solver MONOSAT. NETSOLVER represents a major improvement over existing approaches: it is sound, complete, and scalable, providing support for end-to-end, multi-path bandwidth guarantees across all the layers of hosting infrastructure, from servers to top-of-rack switches to aggregation switches to access routers. NETSOLVER scales to realistic data center sizes and VDC topologies, typically requiring just seconds to allocate VDCs of 5–15 virtual machines to physical data centers with 1000+ servers, maintaining this efficiency even when the data center is nearly saturated. In many cases, NETSOLVER can allocate 150%−300% as many total VDCs to the same physical data center as previous methods. Essential to our solution efficiency is our formulation of VDC allocation using monotonic theories, illustrating the practical value of the recently proposed SAT modulo monotonic theories approach.
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Belsvik, Matilde Reinholdt, Ola Lædre, and Eilif Hjelseth. "Metrics in VDC Projects." In 27th Annual Conference of the International Group for Lean Construction (IGLC). International Group for Lean Construction, 2019. http://dx.doi.org/10.24928/2019/0167.

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Matsumoto, Akira, Akiyoshi Fukui, Takashi Takeda, Keiichi Hirose, and Mikio Yamasaki. "Development of 400 Vdc power distribution system and 400 Vdc output rectifier." In INTELEC 2009 - 2009 International Telecommunications Energy Conference. IEEE, 2009. http://dx.doi.org/10.1109/intlec.2009.5351767.

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Niggemann, R. E., S. Peecher, and G. Rozman. "270-Vdc/Hybrid 115-Vac Electric Power Generating System Technology Demonstrator." In International Pacific Air & Space Technolgy Conference. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1991. http://dx.doi.org/10.4271/912051.

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van Zanten, Anton T., Rainer Erhardt, Klaus Landesfeind, and Georg Pfaff. "VDC Systems Development and Perspective." In International Congress & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1998. http://dx.doi.org/10.4271/980235.

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Saghir, Shahid, Mohammed L. Bellaredj, and Mohammad I. Younis. "Initially Imperfect MEMS Microplates Under Electrostatic Actuation: Theory and Experiment." In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-59838.

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Microplates are building blocks of many Micro-Electro-Mechanical Systems (MEMS). It is common for them to undergo imperfections due to residual stresses caused by the micro fabrication process. Such plates are essentially different from perfectly flat plates and cannot be modeled using the governing equations of flat plates. In this article, we adopt the governing equations of imperfect plates employing the modified von-Karman strains. These equations then are used to develop a Reduced Order Model based on the Galerkin procedure to simulate the static and dynamic behavior of an electrostatically actuated microplate. Also, microplates made of silicon nitride are fabricated and tested. First, the static behaviour of the microplate is investigated when applying a static voltage Vdc. To study the dynamic behaviour we apply a harmonic voltage, Vac, superimposed to Vdc. Simulation results show good agreement with the experimentally measured responses.
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Hosom, D., N. Forrester, and B. Walden. "ALVIN - 120 VDC/28VDC Electrical System." In OCEANS '87. IEEE, 1987. http://dx.doi.org/10.1109/oceans.1987.1160638.

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Murugan, Muthu, Phillip E. Thibodeau, Leroy Van Beveren, and William C. Johnston. "A 10KW Modular Inverter for 28 VDC to 120/240 VAC Power Conversion." In Power Systems Conference. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2006. http://dx.doi.org/10.4271/2006-01-3074.

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Frebel, Fabrice, Paul Bleus, Olivier Bomboir, and Daniel Rixhon. "Transformer-less 2 kW non isolated 400 VDC/230 VAC single stage micro inverter." In 2016 IEEE International Telecommunications Energy Conference (INTELEC). IEEE, 2016. http://dx.doi.org/10.1109/intlec.2016.7749105.

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Mäkinen, Petri, and Jouni Mattila. "Finite Element-Based Control of a Single-Link Flexible Hydraulic Manipulator." In ASME/BATH 2017 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fpmc2017-4264.

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In this study, a stability-guaranteed, nonlinear, finite element-based control is presented for a single-link flexible manipulator with hydraulic actuation, subject to experimental validation. The strong, inherent nonlinearities of the hydraulic cylinder and fluid dynamics, coupled with flexible link dynamics, cause remarkable challenges in controlling the system effectively. In an attempt to cope with these challenges, a controller based on the Virtual Decomposition Control (VDC) approach is introduced. The VDC approach takes advantage of subsystem-dynamics-based control, enabling the handling of the dynamics and control of the hydraulic actuator and the flexible link separately, thus keeping the controller design relatively simple. The rigorous stability theory of the VDC approach guarantees the stability of the entire system. The experiments demonstrate the VDC controller’s performance in end-point control with built-in vibration dampening.
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Reports on the topic "VDC"

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Neste, Charles H. ANU Testing of Steadfast Technologies 15 VDC Resistive Heating System (RHS). Fort Belvoir, VA: Defense Technical Information Center, October 2001. http://dx.doi.org/10.21236/ada399660.

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Sande, Sean, Karl Kitts, Robert Shanebrook, Dennis Timm, and Tuan N. Tran. High Current 270 VDC Contactor and Current Sensor System Design and Development. Fort Belvoir, VA: Defense Technical Information Center, September 1998. http://dx.doi.org/10.21236/ada373465.

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Mata Salazar, Julio Heriberto. Reconstruction in VDC A and B and its application to the resolution in the RICH detector of SELEX. Office of Scientific and Technical Information (OSTI), May 2004. http://dx.doi.org/10.2172/15020226.

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Metere, A. VPC Final Report. Office of Scientific and Technical Information (OSTI), May 2021. http://dx.doi.org/10.2172/1788321.

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Mihovilovic, Miha. Measurement of double polarized asymmetries in quasi-elastic processes ${}^3\vec{He}(\vec{e},e' d)$ and ${}^3\vec{He}(\vec{e},e' p)$. Office of Scientific and Technical Information (OSTI), January 2012. http://dx.doi.org/10.2172/1047576.

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Lehman, Thomas, Chin Guok, and Nasir Ghani. Virtualized Network Control (VNC). Office of Scientific and Technical Information (OSTI), January 2013. http://dx.doi.org/10.2172/1083821.

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Warden, D., and I. Iordanov. The "vnc" URI Scheme. RFC Editor, May 2016. http://dx.doi.org/10.17487/rfc7869.

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Zhu, J. Y., X. S. Chai, L. L. Edwards, Y. Gu, A. S. Teja, A. G. Kirkman, P. H. Pfromm, and M. E. Rezac. VOC Control in Kraft Mills. Office of Scientific and Technical Information (OSTI), September 2001. http://dx.doi.org/10.2172/786745.

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Slad, George William, and Bion J. Merchant. USGS VDP Infrasound Sensor Evaluation. Office of Scientific and Technical Information (OSTI), October 2016. http://dx.doi.org/10.2172/1331426.

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Liekhus, K. J., and E. S. Peterson. Measurement of VOC permeability of polymer bags and VOC solubility in polyethylene drum liner. Office of Scientific and Technical Information (OSTI), March 1995. http://dx.doi.org/10.2172/114587.

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