Journal articles: 'Joe Holloway'

1

He, Cunfu. "GUIDED CIRCUMFERENTIAL WAVES IN HOLLOW CYLINDERS." Chinese Journal of Mechanical Engineering 40, no. 08 (2004): 7. http://dx.doi.org/10.3901/jme.2004.08.007.

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2

Guo, Heping. "CHARACTERISTICS OF HOLLOW CATHODE VACUUM ARC WELDING." Chinese Journal of Mechanical Engineering 36, no. 04 (2000): 91. http://dx.doi.org/10.3901/jme.2000.04.091.

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3

Guo, Heping. "SPECTRAL CHARACTERISTICS OF HOLLOW CATHODE VACUUM ARC." Chinese Journal of Mechanical Engineering 38, no. 04 (2002): 138. http://dx.doi.org/10.3901/jme.2002.04.138.

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4

Telleman, Gerdien, Henny J. A. Meijer, and Gerry M. Raghoebar. "Long-Term Evaluation of Hollow Screw and Hollow Cylinder Dental Implants: Clinical and Radiographic Results After 10 Years." Journal of Periodontology 77, no. 2 (2006): 203–10. http://dx.doi.org/10.1902/jop.2006.040346.

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5

Vadivel, T. Senthil, M. Doddurani, and R. Thenmozhi. "Experimental Study On Crumb Rubber Hollow Concrete Block." i-manager's Journal on Civil Engineering 3, no. 4 (2013): 16–21. http://dx.doi.org/10.26634/jce.3.4.2522.

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6

ZHAO, Bo. "Vibration Analysis of Ultrasonic Longitudinal-torsional Composite Hollow Horn." Journal of Mechanical Engineering 55, no. 5 (2019): 121. http://dx.doi.org/10.3901/jme.2019.05.121.

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7

CHEN, Shujun. "Research of Hollow Tungsten Central Negative Pressure Arc Welding Characteristic." Journal of Mechanical Engineering 52, no. 2 (2016): 7. http://dx.doi.org/10.3901/jme.2016.02.007.

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8

SUN, Yu. "Influence of Tread Hollow-worn Wheel on Wheel/rail Interaction." Journal of Mechanical Engineering 54, no. 4 (2018): 109. http://dx.doi.org/10.3901/jme.2018.04.109.

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9

YUAN, Shijian. "Hydroforming Processes and Equipments of Hollow Structures with Various Sections." Journal of Mechanical Engineering 48, no. 18 (2012): 21. http://dx.doi.org/10.3901/jme.2012.18.021.

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10

Takeshita, Fumitaka, Shinji Iyama, Yasunori Ayukawa, Tsuneo Suetsugu, and Masamichi Oishi. "Failing Hollow Implants Examined by Light Microscopy and Image Processing." Journal of Periodontology 68, no. 3 (1997): 293–98. http://dx.doi.org/10.1902/jop.1997.68.3.293.

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11

Pergher, Gianfranco, and Nicola Zucchiatti. "Influence of canopy development in the vineyard on spray deposition from a tunnel sprayer." Journal of Agricultural Engineering 49, no. 3 (2018): 164–73. http://dx.doi.org/10.4081/jae.2018.801.

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Spray deposition from a tunnel, air-assisted sprayer was analysed during the whole season, following canopy development in a vertical-shoot-positioned vineyard. Four field tests were performed using hollow-cone, turbulence nozzles between the BBCH 15 (5 leaves unfolded) and BBCH 77 (berries beginning to touch) growth stages, plus an additional test with flat-fan, air-injection nozzles at BBCH 77. The main canopy parameters were assessed, including the canopy height range (0.6 m to 1.4 m), the leaf area index (LAI; 0.15 to 1.60) and the leaf layer index (LLI; 0.69 to 2.74). Total deposition on target (leaves and bunches) increased from 14.8% to 53.9% of volume applied, and was significantly related to the LLI (R² = 0.943); the relevance of such relationship in connection with the leaf wall area model for volume rate adjustment is discussed in the paper. Losses to the ground (1.9% to 8.1% of volume applied), spray recovery rate (31.0% to 67.2%) and losses owing to evaporation of the recycled liquid (0.1% to 3.5%) were also analysed. At BBCH 77, air-injection nozzles did not improve overall deposition in comparison to hollow-cone nozzles, but increased spray recovery (from 31.0% to 36.1%) and reduced (to 0.1%) evaporation of the recycled liquid, so that they may represent an option to avoid an excessive concentration in the tank towards the end of application.

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12

GONG, Yubin. "Simulation Research on the Fretting Wear of Press-fitted Hollow Axle." Journal of Mechanical Engineering 53, no. 6 (2017): 123. http://dx.doi.org/10.3901/jme.2017.06.123.

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13

LIU, Yingchun. "Analysis of Elastic-plastic Stresses in Rotating Paper Machine Hollow Rolls." Journal of Mechanical Engineering 47, no. 04 (2011): 71. http://dx.doi.org/10.3901/jme.2011.04.071.

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14

Luo, Yuanqiang, Lei Chen, and Albert J. Shih. "Hollow Notched K‐Wires for Bone Drilling With Through‐Tool Cooling." Journal of Orthopaedic Research 37, no. 11 (2019): 2297–306. http://dx.doi.org/10.1002/jor.24419.

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15

MA, Shuyi. "Dispersion Characteristics and Inspection Frequency Selection of Guided Waves in Hollow Cylinders." Journal of Mechanical Engineering 50, no. 20 (2014): 8. http://dx.doi.org/10.3901/jme.2014.20.008.

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16

LV, Ruifang. "Research on Preparation and Properties of Coal Gangue Hollow Sphere Porous Materials." Journal of Mechanical Engineering 51, no. 2 (2015): 71. http://dx.doi.org/10.3901/jme.2015.02.071.

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17

Duroc-Danner, J. M. "On the identification of hollow natural pearls and non-nucleated cultured pearls." Journal of Gemmology 20, no. 1 (1986): 11–13. http://dx.doi.org/10.15506/jog.1986.20.1.11.

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18

Sbordone, Ludovico, Tonino Traini, Sergio Caputi, Antonio Scarano, Claudia Bortolaia, and Adriano Piattelli. "Scanning Electron Microscopy Fractography Analysis of Fractured Hollow Implants." Journal of Oral Implantology 36, no. 2 (2010): 105–11. http://dx.doi.org/10.1563/aaid-joi-d-10-90000.

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Abstract Fracture of the implant is one of the possible complications affecting dental implants; it is a rare event but of great clinical relevance. The aim of the present study was to perform a scanning electron microscopy (SEM) fractography evaluation of 7 International Team for oral Implantology (ITI) hollow implants removed because of fracture. The most common clinical risk factors, such as malocclusion, bruxism, and cantilevers on the prosthesis, were absent. Seven fractured ITI hollow implants were retrieved from 5 patients and were analyzed with the use of SEM. SEM analysis showed typical signs of a cleavage-type fracture. Fractures could be due to an association of multiple factors such as fatigue, inner defects, material electrochemical problems, and tensocorrosion.

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19

LU, Zhongliang. "Defects Control of Manufacturing Ceramic Mold of Hollow Turbine Blade Based on Stereo Lithography." Journal of Mechanical Engineering 50, no. 21 (2014): 111. http://dx.doi.org/10.3901/jme.2014.21.111.

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20

LIU, Min. "Research on Rotatory Deformation Uniformity and Compaction Effect of Super-heavy Hollow Steel Ingot." Journal of Mechanical Engineering 52, no. 8 (2016): 90. http://dx.doi.org/10.3901/jme.2016.08.090.

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21

Shan, Rui. "SOLUTION OF SINE PRESSURES ON A HOLLOW CYLINDER AND THE LIMIT WHEN k→0." Chinese Journal of Mechanical Engineering 40, no. 01 (2004): 73. http://dx.doi.org/10.3901/jme.2004.01.073.

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22

Liu, Guihua. "RESEARCH ON MECHANISM OF INTERIOR-HOLLOW DEFECT DURING THE DEFORMATION OF CROSS WEDGE ROLLING." Chinese Journal of Mechanical Engineering 40, no. 02 (2004): 150. http://dx.doi.org/10.3901/jme.2004.02.150.

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23

Baohong, TONG, SU Jialei, ZHANG Guotao, et al. "Effect of Airflow on the Spreading Process of Hollow Oil Droplets after Wall Impacting." Journal of Mechanical Engineering 56, no. 17 (2020): 216. http://dx.doi.org/10.3901/jme.2020.17.216.

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24

Alami, N., J. Paterson, S. Belanger, S. Juste, C. K. Grieshaber, and B. Leyland-Jones. "Comparative Cytotoxicity of C-1311 in Colon CancerIn VitroandIn VivoUsing the Hollow Fiber Assay." Journal of Chemotherapy 19, no. 5 (2007): 546–53. http://dx.doi.org/10.1179/joc.2007.19.5.546.

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25

Wei, Yangang. "RESEARCH ON THE PERFORMANCES OF A NOVEL ROLLER BEARING-DEEP CAVITY HOLLOW CYLINDRICAL ROLLER BEARING." Chinese Journal of Mechanical Engineering 41, no. 02 (2005): 107. http://dx.doi.org/10.3901/jme.2005.02.107.

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26

YU, Junquan. "Effect of Baffle-block on Material Flow Velocity during Thin-walled Hollow Aluminum Profile Extrusion." Journal of Mechanical Engineering 48, no. 16 (2012): 52. http://dx.doi.org/10.3901/jme.2012.16.052.

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27

Piattelli, A., A. Scarano, M. Piattelli, E. Vaia, and S. Matarasso. "Hollow Implants Retrieved for Fracture: A Light and Scanning Electron Microscope Analysis of 4 Cases." Journal of Periodontology 69, no. 2 (1998): 185–89. http://dx.doi.org/10.1902/jop.1998.69.2.185.

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28

UMEGAKI, Tetsuo, Hiroki SHIRAISHI, and Yoshiyuki KOJIMA. "Fabrication of Hollow Spheres of Copper-Cerium Composite Oxide for Catalytic Decomposition of Nitrous Oxide." Journal of the Japan Institute of Energy 99, no. 5 (2020): 52–56. http://dx.doi.org/10.3775/jie.99.52.

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29

SHI, Weixiu. "Numerical Study on Heating and Viscosity Reduction of Circulating Hot Water in Hollow Rod Top Pum." Journal of Mechanical Engineering 47, no. 02 (2011): 154. http://dx.doi.org/10.3901/jme.2011.02.154.

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30

He, Tianhu, Jintao Ma, and Yan Li. "The generalized electromagnetic-thermoelastic coupling problem of hollow cylindrical conductor based on the memory-dependent derivative." International Journal of Applied Electromagnetics and Mechanics 61, no. 3 (2019): 357–75. http://dx.doi.org/10.3233/jae-180124.

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31

CHEN, Hao. "Numerical Simulation of Extrusion Process and Die Structure Optimization for a Hollow Aluminum Profile with Thin Wall." Journal of Mechanical Engineering 46, no. 24 (2010): 34. http://dx.doi.org/10.3901/jme.2010.24.034.

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32

Romanos, Georgios E., Stuart Froum, Silvia Costa-Martins, Sean Meitner, and Dennis P. Tarnow. "Implant Periapical Lesions: Etiology and Treatment Options." Journal of Oral Implantology 37, no. 1 (2011): 53–63. http://dx.doi.org/10.1563/aaid-joi-d-09-00067.

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Abstract Implant failures due to apical pathology are conditions that have not been extensively studied nor reported in the literature. The implant periapical lesion (IPAL) has different symptoms, and several etiologies have been proposed in the literature. This article reviews cases of IPAL reported in peer-reviewed journals and presents possible treatment options. Analysis of the data collected was performed based on diagnosis, cause of extraction of the natural tooth, location, period of implant placement, implant surface, and treatment approach. Even the data presented in this review are based on few reported cases the etiology of these lesions seems to be multifactorial or with an unknown origin. Contamination of the implant surface, bone overheating during surgery, excessive torquing of the implant, poor bone quality, perforation or thinning of the cortical bone, premature or excessive load over the fixture, fracture of the bone inside the hollow portion of the hollow implant, and an implant placement in an infected maxillary sinus have been discussed. In general, areas around endodontically compromised teeth should be carefully analyzed prior to implant placement to prevent implant failures.

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33

Tomczak, Janusz, Tomasz Bulzak, and Zbigniew Pater. "The Effect of Billet Wall Thickness on the Rotary Compression Process for Hollow Parts." Strojniški vestnik – Journal of Mechanical Engineering 61, no. 3 (2015): 149–56. http://dx.doi.org/10.5545/sv-jme.2014.1977.

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34

Ji, Ming, and Hongjun Guo. "Influence of in-situ rock stress on the stability of roadway surrounding rock: a case study." Journal of Geophysics and Engineering 17, no. 1 (2019): 138–47. http://dx.doi.org/10.1093/jge/gxz097.

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Abstract In-situ rock stress was measured in the development roadway of Gucheng coal mine at +420 m level by using the stress relief method of hollow inclusion. The results show that the first principal stress was the vertical stress, the maximum horizontal principal stresses were distributed in the range of N10°E and N20°E, and the average side pressure coefficient was 0.83. There was a large difference between the maximum horizontal principal stress and the minimum horizontal principal stress, and the calculated average ratio was 2.02. A spatial stress conversion model of the horizontal roadway based on the measured in-situ rock stresses was built, and the distribution laws of stress and displacement of the surrounding rock of the roadway were analyzed in depth along the changing radial direction. According to the Mohr–Coulomb failure criterion, an asymmetric surrounding rock plastic zone was obtained and the plastic failure radius was 5.0 m. Considering the roadway-surrounding rock differential control, the stronger support in the risk areas was practiced and validated. The work in this paper would provide some ideas for the design and optimization of the support parameters for roadway engineering.

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35

UMEGAKI, Tetsuo, Chinatsu HOSHI, Haruka OGAWA, et al. "The Coordination Structure and Activity of Hollow Silica-alumina Composite Spheres for Hydrogen Evolution from Aqueous Ammonia Borane Solution." Journal of the Japan Institute of Energy 98, no. 12 (2019): 312–17. http://dx.doi.org/10.3775/jie.98.312.

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36

TOYAMA, Naoki, Tetsuo UMEGAKI, Qiang XU, and Yoshiyuki KOJIMA. "Control of Particle Size of Hollow Silica-alumina Composite Spheres and Their Activity for Hydrolytic Dehydrogenation of Ammonia Borane." Journal of the Japan Institute of Energy 93, no. 5 (2014): 511–16. http://dx.doi.org/10.3775/jie.93.511.

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37

Brown, Matthew S., Karla M. Addesso, Fulya Baysal-Gurel, Nadeer N. Youssef, and Jason B. Oliver. "Permethrin Residual Activity Against Ambrosia Beetle (Coleoptera: Curculionidae: Scolytinae) Attacks Following Field Aging and Simulated Rainfall Weathering." Journal of Economic Entomology 113, no. 5 (2020): 2418–26. http://dx.doi.org/10.1093/jee/toaa186.

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Abstract Adult ambrosia beetles (Coleoptera: Curculionidae: Scolytinae) bore into ornamental nursery trees resulting in trunk vascular tissue damage, which can potentially kill trees. Ambrosia beetle exposure to surface-applied insecticides is minimal after internal trunk galleries are formed, so effective management requires insecticide treatments to be applied near the time of infestation or to have residual activity on the bark. Tree trunk sections (bolts) were used to determine the effect of field aging or irrigation (i.e., simulated rainfall weathering) on permethrin residual activity against ambrosia beetles. In all experiments, 30-cm-long bolts from Liriodendron tulipifera L. (Magnoliales: Magnoliaceae) were hollowed and filled with 70% ethanol at field deployment to induce ambrosia beetle attacks over a 2-wk period. To evaluate insecticide residual activity, permethrin was sprayed onto tree bolts at 0, 8, 17, or 24 d before ethanol addition, and then bolts were deployed along a wooded border in fall 2017 and spring 2018. Tree bolts with permethrin residues ≤17 d old had significantly fewer ambrosia beetle attacks than bolts with 24-d-old residues or the non-permethrin-treated control bolts. To evaluate simulated rainfall weathering, permethrin was applied to tree bolts 8 or 22 d before ethanol (spring 2018) or 10 or 24 d before ethanol (fall 2018) with half of the bolts receiving regular irrigation events. Irrigation had no significant effect on permethrin residual activity against ambrosia beetles during either test. This study determined ambrosia beetle control was affected by permethrin residue age more than simulated rainfall weathering, and a reapplication interval of ≤17 d maximized beetle control.

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38

UMEGAKI, Tetsuo, Qiang XU, and Yoshiyuki KOJIMA. "Influence of Preparation Conditions on Morphology of in-situ Synthesized Hollow Nickel-silica Spheres for Hydrolytic Dehydrogenation of Ammonia Borane." Journal of the Japan Institute of Energy 93, no. 4 (2014): 323–27. http://dx.doi.org/10.3775/jie.93.323.

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39

Tokumaru, Susumu, Ryuji Uesugi, Chihiro Urairi, Shingo Toyoshima, Yumi Aoki, and Akeo Iwasaki. "Detection of Two Biotypes of Liriomyza chinensis (Diptera: Agromyzidae) in Japan." Journal of Economic Entomology 114, no. 3 (2021): 1406–10. http://dx.doi.org/10.1093/jee/toab037.

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Abstract The larva of stone leek leafminer, Liriomyza chinensis (Kato), is known to infest alternately just below the epidermis and inner surface of hollow cylindrical leaves of allium crops, resulting in the formation of discontinuous linear mines (mine form: discontinuous). However, after the fall of 2016, a novel mine form of the same species (mine form: continuous) was detected in Welsh onion fields of Kyoto Prefecture, Japan. We hypothesized that these mine forms were associated with flies having different genetic backgrounds; hence, we compared the mine forms and the partial mtCOI gene of flies collected from Welsh onion fields from 2018 to 2019. The results demonstrated that the flies that emerged from different mine forms could be classified into two haplogroups, i.e., flies displaying a discontinuous mine form were of haplogroup A, whereas those that displayed continuous mines were of haplotype B. Additionally, using populations of these flies reared in the laboratory, we confirmed that the mine form of the larvae of haplotype A on Welsh onions was discontinuous, whereas that of haplotype B was continuous. We named the population that exhibited a discontinuous mine form as biotype A and the population displaying a continuous mine form as biotype B.

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40

UMEGAKI, Tetsuo, Yasuhiro WATANUKI, Qiang XU, and Yoshiyuki KOJIMA. "Effect of Solvents on Morphology of Hollow Nickel-Silica Composite Spheres and Their Catalytic Performance for Hydrolytic Dehydrogenation of Ammonia Borane." Journal of the Japan Institute of Energy 93, no. 8 (2014): 703–9. http://dx.doi.org/10.3775/jie.93.703.

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41

Najafifar, Rogheyeh. "Checking the Relationship between Quality of Work Life and Employees Job Satisfaction of Education District 10 of Tehran." Modern Applied Science 10, no. 12 (2016): 82. http://dx.doi.org/10.5539/mas.v10n12p82.

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Considering the fact that in all of the organization including education organization quality of work life today has found a special place, because this reason lack and vacuum of working life quality cause employees have not spirit that they should have to work, and this leads to job satisfaction and ultimately employee productivity reduce and working environment and career seem hollow. So in this research tried to assess the relationship between work life quality and job satisfaction in Education Organization of Tehran. This research was conducted in period is July and August 2015. The research method is descriptive and correlational and the study population included all employees in the Education Organization 10 District of Tehran. The total number is 100 people. That according to Cochran formula was calculated sample size of over 79 people. In this study, for the data analysis, descriptive and inferential statistical methods such as Kolmogorov - Smirnov correlation test was used. The study results showed that 8 independent variable of this research significantly have significant relationship with dependent variable job satisfaction.

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42

Mientjes, Martine I. V., and Robert W. Norman. "Effects of lumbar curvature on low back pain risk factors during repetitive postural loading." Occupational Ergonomics 3, no. 1 (2003): 3–17. http://dx.doi.org/10.3233/oer-2003-3102.

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Effects of lumbar spine curvature on reducing risk factors for reporting low back pain (LBP) at work were assessed for a "light" but repetitive simulated workplace assembly job. Nine women stood at a target trunk angle of 30° and assembled plastic toys on a table for 25 minutes in one minute work cycles, at a work/recovery ratio of 55/5 seconds. Flexed (rounded back) postures, often observed in industry, and lordotic (hollow back) postures maintained by back extensor muscles and proposed to reduce risk by reducing shear forces, were studied. Spinal loading was imposed by torso weight only. Twenty-five minutes of this simulated job produced discomfort scaled as "strong" to "very strong" regardless of spinal posture. Lordosis required median EMGs of 15% MVC. Flexed postures lowered back extensor EMG to as little as 5% MVC but not to zero. This apparently "light" job seems to expose people to quite high risk of reporting LBP (estimated at about 80%), mainly because of high cumulative spine loads, regardless of the spinal posture adopted.

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43

UMEGAKI, Tetsuo, Tomonobu ARAI, and Yoshiyuki KOJIMA. "Influence of Preparation Conditions on the Morphology and Catalytic Activity of Hollow Spheres of Copper-Cerium Composite Oxide for Oxidation of Carbon Monoxide." Journal of the Japan Institute of Energy 93, no. 12 (2014): 1244–50. http://dx.doi.org/10.3775/jie.93.1244.

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44

Shirbhate, Sanjay. "Multipurpose Low Cost Table Machine." IRA-International Journal of Technology & Engineering (ISSN 2455-4480) 7, no. 2 (S) (2017): 101. http://dx.doi.org/10.21013/jte.icsesd201710.

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The concept of this paper is to develop idea of multipurpose machine as by conducting various operation on same machine, using single operating system. Here, in this machine there is a electric motor which is connected to the pulleys driven by belt (more than one pulley for various speed). The pulley is connected with the shaft which rotate in circular motion and to this shaft circular tools are connected as per required operation as circular saw cuts wooden pieces, pipe cutter will cuts iron rod or iron hollow pipe, grinding circular wheel grinds the job, polishing wheel polishes the job etc. more types of tools and the operation can be done on the same machine. The idea of this machine is to motivate small scale house hold units for ex. Furniture making, office table, Chair, show case for wedding ceremony etc. with low cost machines with multipurpose operation done on same machine.

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45

Szczepaniec, Adrianna, Karl D. Glover, and William Berzonsky. "Impact of Solid and Hollow Varieties of Winter and Spring Wheat on Severity of Wheat Stem Sawfly (Hymenoptera: Cephidae) Infestations and Yield and Quality of Grain." Journal of Economic Entomology 108, no. 5 (2015): 2316–23. http://dx.doi.org/10.1093/jee/tov207.

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46

Bukhari, Sarah A., Abdulaziz AlHelal, Periklis Proussaefs, Antoanela Garbacea, and Mathew T. Kattadiyil. "Use of Patient's Own Natural Teeth as Part of the Interim Prosthesis on Immediately Placed Single Implants in a Staged Surgical Approach: A Clinical Report." Journal of Oral Implantology 44, no. 5 (2018): 351–57. http://dx.doi.org/10.1563/aaid-joi-d-17-00292.

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A technique is described where the tooth's natural crown is used as part of the interim implant supported prosthesis in clinical situations where a tooth with poor prognosis is extracted and an implant is placed immediately after tooth extraction. A preliminary impression is made before tooth extraction, and the exact tooth positioning is assessed in the laboratory as part of the treatment plan. An acrylic resin repositioning jig is fabricated that will guide the clinician in seating and orienting the crown intraorally after implant placement is completed. After the natural tooth is extracted and an implant is immediately placed via guided approach, the extracted natural crown is hollowed and placed on top of an interim abutment. The natural crown is positioned intraorally by using the acrylic resin repositioning jig. The crown is then internally relined and placed as part of the interim implant supported prosthesis. After osseointegration has been confirmed, a definitive prosthesis is placed.

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47

Scotto di Perta, Ester, Elena Cervelli, Maria Pironti di Campagna, and Stefania Pindozzi. "From biogas to biomethane: Techno-economic analysis of an anaerobic digestion power plant in a cattle/buffalo farm in central Italy." Journal of Agricultural Engineering 50, no. 3 (2019): 127–33. http://dx.doi.org/10.4081/jae.2019.939.

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Anaerobic digestion (AD) is a mature technology commonly used for manure treatment, both for the stabilisation of waste and for the production of energy. The introduction of new incentives could represent an opportunity for biogas production, when the current feed-in-tariffs, which improved the financial feasibility of AD plants producing electricity will end. This paper examines the feasibility of reconverting an existing AD biogas production plant into a biomethane production plant. The AD plant, in this case study, is a two-stage reactor situated in the centre of Italy and mainly fed with livestock manure from both cows and buffaloes. The economic analysis of two hypotheses is provided: i) continuing the electricity production from biogas after the end of the current incentives (2025); ii) considering the new incentives program for the biomethane and reconverting the plant, using hollow-fibre membranes for the purification of the raw biogas (SEPURAN® Green modules, EnviTec). For this purpose, investment and operating costs, based on plant monitoring data (2105.3 m3 d–1, Biogas production; 4432.9 kWh d–1, electricity production) as well as on market analysis for costs evaluation were considered. The mean biogas production for the considered year was about 30% less than the expected production, indicated by producer, highlighting the need for the optimisation of the management of the reactors. Moreover, based on the averaged methane production (June 2017-June 2018), results show that: i) plant conversion for the biomethane production is not suitable for small-scale plants, due to the high investment costs of upgrading technology (1.2 M€); ii) when current incentives end, the electricity production from biogas in the current plant may not be self-sufficient, due to the highly expensive operating costs. This paper provides a first analysis of the possible fate of the biogas plants under the new incentives.

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48

Deng, Wei, Chunjiang Zhao, Liping Chen, and Xiu Wang. "Constant pressure control for variable-rate spray using closed-loop proportion integration differentiation regulation." Journal of Agricultural Engineering 47, no. 3 (2016): 148. http://dx.doi.org/10.4081/jae.2016.512.

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Traditional sprayers adopt large-area uniform pesticide application, resulting in a low effective utilisation of pesticide and a harmful effect to the natural environment. Variable-rate spray is the key point to precision chemical application. However, it is inevitable that the spray pressure sharply fluctuates during variable-rate spray, which will definitely influence the spray characteristics, such as spray droplet sizes, spray angles, spray droplet velocities, etc., and reduce the efficiency of pesticide applications. Therefore, the research on how to keep the spray pressure constant during the process of variable- rate spray has practical significance to precision pesticide applications. In order to achieve the stability of spray pressure for variable- rate spray, a sprayer with constant-pressure control was set up using a closed-loop proportion integration differentiation (PID) controller of constant-pressure water-supply, which employed the techniques of single-phase alternating current (AC) chopper variablevoltage control and PID feedback regulation. Using hollow-cone nozzles, the spray volume was changed by adjusting spray pressure, frequency, and duty cycle of electromagnetic valve switching. The spray features concerning the spray angle and the spray volume distribution were studied in laboratory. The conclusions are as follows: i) for a given input spray pressure, the closed-loop controller with AC chopper and PID feedback regulation can effectively control the pressure fluctuations during the variable-rate spray through varying the frequency and the duty cycle; ii) the spray angle was slightly affected by the flow-rate change through adjusting the frequency and the duty cycle of electromagnetic valves or changing the number of open nozzles. The spray angle changes were controlled within the range of the maximum deviation 0.87° from mean value and the minimum deviation 0.03° from mean value; iii) when the spray pressure was set as 0.3 Mpa, the peak radial position of the spray volume distribution basically unchanged and the spray volume and the peak values of the spray distribution gradually increased with the increasing duty cycle. When the setting pressure was increased, the spray volume increased and the peak radial position of the spray distribution gradually expanded toward outside, however the peak value of the spray distribution decreased a little.

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Puro, Vincenzo, Gabriella De Carli, Nicola Petrosillo, and Giuseppe Ippolito. "Risk of Exposure to Bloodborne Infection for Italian Healthcare Workers, by Job Category and Work Area." Infection Control & Hospital Epidemiology 22, no. 4 (2001): 206–10. http://dx.doi.org/10.1086/501890.

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AbstractObjective:To analyze the rate of occupational exposure to blood and body fluids from all sources and specifically from human immunodeficiency virus (HIV)-infected sources among hospital workers, by job category and work area.Design:Multicenter prospective study. Occupational exposure data (numerator) and full-time equivalents ([FTEs] denominator) were collected over a 5-year period (1994-1998) and analyzed.Setting:18 Italian urban acute-care hospitals with infectious disease units.Results:A total of 10,988 percutaneous and 3,361 mucocutaneous exposures were reported. The highest rate of percutaneous exposure per 100 FTEs was observed among general surgery (11%) and general medicine (10.6%) nurses, the lowest among infectious diseases (1.1%) and laboratory (1%) physicians. The highest rates of mucocutaneous exposure were observed among midwives (5.3%) and dialysis nurses (4.7%), the lowest among pathologists (0%). Inadequate sharps disposal and the prevalence of sharps in the working unit influence the risk to housekeepers. The highest combined HIV exposure rates were observed among nurses (7.8%) and physicians (1.9%) working in infectious disease units. The highest rates of high-risk percutaneous exposures per 100 FTE were again observed in nurses regardless of work area, but this risk was higher in medical areas than in surgery (odds ratio, 2.1; 95% confidence interval, 1.9-2.5; P<.0001).Conclusion:Exposure risk is related to job tasks, as well as to the type and complexity of care provided in different areas, whereas HIV exposure risk mainly relates to the prevalence of HIV-infected patients in a specific area. The number of accident-prone procedures, especially those involving the use of hollow-bore needles, performed by job category influence the rate of exposure with high risk of infection. Job- and area-specific exposure rates permit monitoring of the effectiveness of targeted interventions and control measures over time.

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Bidra, Avinash S., George W. May, Greggory E. Tharp, and Mark S. Chambers. "Pterygoid Implants for Maxillofacial Rehabilitation of a Patient With a Bilateral Maxillectomy Defect." Journal of Oral Implantology 39, no. 1 (2013): 91–97. http://dx.doi.org/10.1563/aaid-joi-d-10-00181.

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Bilateral maxillectomy is known to have serious esthetic and functional consequences. The retention and support of a maxillary obturator prosthesis in these patients is particularly challenging. Surgical placement of implants is also challenging because of the lack of available bone. Therefore, implant placement into remote sites such as zygoma has been advocated. Very few articles in the literature have discussed the use of pterygoid/pterygomaxillary implants in patients undergoing maxillectomy. This case report describes the maxillofacial rehabilitation of an elderly man who underwent a bilateral subtotal maxillectomy due to basaloid squamous cell carcinoma of the hard palate. After initial healing, the patient had a pterygoid implant placed on each side of the oral cavity. Zygomatic implants were also attempted, but they failed to osseointegrate. Both pterygoid implants showed successful osseointegration. These 2 implants significantly helped to retain a hollow maxillary obturator prosthesis that aided in improved swallowing, speech, and esthetics. To the authors' knowledge, this is the first report in the literature that describes usage of pterygoid implants for rehabilitation of a patient undergoing bilateral maxillectomy.

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Journal articles on the topic 'Joe Holloway'

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