• Title/Summary/Keyword: WF

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Type I von Willebrand Disease in a Maltese (한국내 말티즈에서 발생한 제 1형 폰 빌레브란트병 증례)

  • Kim, Seung-Gon;Kang, Min-Hee;Lee, Kyo-Im;Kim, Ha-Jung;Park, Hee-Myung
    • Journal of Veterinary Clinics
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    • v.30 no.5
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    • pp.359-362
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    • 2013
  • A 6-year-old castrated male Maltese weighing 4.16 kg presented with a history of bleeding from the mouth after scaling and dental extraction 2 days prior. The von Willebrand factor antigen (vWf:Ag) level was 54% (reference range, 70-180%), indicating that the dog was homozygous for an inherited von Willebrand disease (vWD). The dog received whole-blood transfusion as initial treatment, consequently showing markedly improved clinical signs, and is currently in good condition. To our knowledge, this is the first reported case of type 1 vWD in a Maltese in Korea.

RF Power Dependence of Stresses in Plasma Deposited Low Resistive Tungsten Films for VLSI Devices (고집적 소자에 적용되는 저저항 텅스텐 박막에서 응력의 RF power 의존성)

  • Lee, Chang-U;Go, Min-Gyeong;O, Hwan-Won;U, Sang-Rok;Yun, Seong-Ro;Kim, Yong-Tae;Park, Yeong-Gyun;Gho, Seok-Jung
    • Korean Journal of Materials Research
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    • v.8 no.11
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    • pp.977-981
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    • 1998
  • Controlling the wafer temperatures from 200 to$500^{\circ}C$, low resistive tungsten thin films used for VLSI metallization are deposited by PECVD method. Resistivities of plasma deposited tungsten thin films are very sensitive to the $H_2/WF_6 $ partial pressure ratios. Residual stress behaviors of the films as a function of plasma power density were also studied. At the power density under the $0.7W/\textrm{cm}^2$, residual stress of W film is about $2.4\times10^9dyne/\textrm{cm}^2$. When the power density is. however, increased from 1.8 to $2.7W/\textrm{cm}^2$, residual stress is suddenly increased from $8.1\times10^9$ to $1.24\times10^{10}dyne/\textrm{cm}^2$ ue to the ion or radical bombardment at high power density.

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BPMN2XPDL: Transformation from BPMN to XPDL for a business process (BPMN2XPDL : 비즈니스 프로세스에 대한 BPMN 표기법을 XPDL 언어로의 변환)

  • Park Jung-Up;Jung Moon-Young;Jo Myung-Hyun;Kim Hak-Soo;Son Jin-Hyun
    • The KIPS Transactions:PartD
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    • v.13D no.4 s.107
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    • pp.535-548
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    • 2006
  • To formally describe business process, many business process languages have been so far specified with different origins and goals such as XPDL, BPML and BPELAWS. Especially, XPDL proposed by WfMC has been widely used in various business process environments for a long time. On the other hand, the necessity of a standard graphical notation for a business process may create BPMN driven by BPMI. Because BPMN is composed of graphical constructs which can be used to graphically depict business process, BPMN-formed business processes should ultimately be converted to their corresponding semantically equivalent business process language(XPDL). Then, the business process languages can be consequently executed by business process engines. In this paper, we proposed a transformation mechanism from BPMN to XPDL for a business process. By this paper, We minimized the difference between process designers and process execution modules as reducing the gap of semantics between BPMN and XPDL.

Methane Fermentation of the Paper Mill Sludge under Anaerobic Condition (제지슬러지의 혐기메탄발효)

  • Choi, Jong-Woo;Lee, Kyu-Seung
    • Korean Journal of Environmental Agriculture
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    • v.23 no.1
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    • pp.22-27
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    • 2004
  • The activated paper mill sludge was treated with WF and some additives (sodium sulfide, nickel nitrate, ethyl acetate) for methane fermentation at $35^{\circ}C$. Optmum C/N ratio was 60 out of three conditions (20, 30 and 60). The Period of 40% of methane content possibly ignition, was 2 days shorter than with non-treatment during 10 days. Nevertheless, the total amount of methane production showed the 1/8 level of control far the same period. The yield and content of methane were increased by the addition of sodium Sulfur and ethyl acetate. Sulfur was an essential factor in methane fermentation of paper mill sludge.

Improvement of the adhesion and resistivity of low-pressure chemical vapor deposited tungsten films by controlling deposition parameters (LPCVD로 증착한 텅스텐 박막의 증착 조건 제어에 의한 접착성 및 저항 특성 향상)

  • 노관종;윤선필;윤영수;노용한
    • Journal of the Korean Vacuum Society
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    • v.9 no.4
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    • pp.321-327
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    • 2000
  • Tungsten(W) thin films with good adhesion property and low resistivity (~10 $\mu$\Omega$$.cm) were deposited directly on $SiO_2$ by LPCVD. The adhesion property of W thin films on $SiO_2$ improves as the temperature and/or $SiH_4/WF_6$ gas ratio increase. Specifically tungsten thin films could be deposited on $SiO_2$ even at $350^{\circ}C$ if the gas ratio of 2 was employed. The resistivity of tungsten thin films deposited at $350^{\circ}C$ was high due to the presence of $\beta$-W. However, the resistivity can be minimized by increasing the amount of $H_2$ gas flow. Therefore, it is shown in this work that the adhesion of tungsten thin films on $SiO_2$ can be improved simply by controlling the process parameters (e.g., temperature, gas ratio and $H_2$ flow rate) without employing complex deposition methods or additional glue layers.

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On the Feasibilty of Milled Sanders as a New Extender for Plywood Glue (합판접착제용(合板接着劑用) 미세목분증량제(微細木粉增量劑)에 관(關)한 연구(硏究))

  • Ahn, Kee-Woo
    • Journal of the Korean Wood Science and Technology
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    • v.1 no.2
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    • pp.3-10
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    • 1973
  • This study was carried out to examine the characeristics of waste sanders(S)from. plywood and pre-finishing plywood surface sanding and double saw finishing, as a new extander in urea-formaldehyde resin(UFR) in plywood adhesive, and to focus, adhesive strength using the glue extended with milled sanders(MS) as extender, leveling the optimum amount of MS to be added, and examining the physical properties of glue extended MS & S. Also economical good feasibility of substitution for wheat flour(WF) with MS as a new extender is analyzed and presented in details. Selecting three standard samples of 80, 100 and 180 mesh, sorking them in distilled water at $20^{\circ}C$, 24 hours, redrying at $105^{\circ}C$ and rescreening the sample with standard screen, again, the 3 samples of 80, 100, and 180 mesh are passed 23 percent through 80 mesh sander standard sample 27 percent through on 100 mesh and only 10.9 percent through 180 mesh, respectively. The particle size of retained parts are greater in size of redried form. It seems undoubtly that particles to be extended in glue are got swollen and become greater in size and coarser in shape. The shape of fresh S particles are irregular thin needle with small scale, as shown in Figure 5. PFS are so finer than plywood S that only 9.8 percent of the S retained on 100 mest screen, 24. 30 percent on 100-160 mesh, and 65.9% on 160-180 mesh. But particle size of the fresh S is large enough to make the viscosity of glue direct extended with S too high to apply it glue spreader. The glue extended with milled sanders(MS). 3 hours milled PFS or 6 hours milled plywood S, having particle sizes shown in Tables 7 and 8, as ratio of Reain/MS/WF/water: 100/8/8/10, indicate good viscosity of 16 to 24 ps, as shown in Figure 5, for applying direct to glue spreader, have high tensile-shear strength (adhesive strength), 102.4 kp/$cm^2$, and 94 percent wood failure.

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RNA-seq profiling of skin in temperate and tropical cattle

  • Morenikeji, Olanrewaju B.;Ajayi, Oyeyemi O.;Peters, Sunday O.;Mujibi, Fidalis D.;De Donato, Marcos;Thomas, Bolaji N.;Imumorin, Ikhide G.
    • Journal of Animal Science and Technology
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    • v.62 no.2
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    • pp.141-158
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    • 2020
  • Skin is a major thermoregulatory organ in the body controlling homeothermy, a critical function for climate adaptation. We compared genes expressed between tropical- and temperate-adapted cattle to better understand genes involved in climate adaptation and hence thermoregulation. We profiled the skin of representative tropical and temperate cattle using RNA-seq. A total of 214,754,759 reads were generated and assembled into 72,993,478 reads and were mapped to unique regions in the bovine genome. Gene coverage of unique regions of the reference genome showed that of 24,616 genes, only 13,130 genes (53.34%) displayed more than one count per million reads for at least two libraries and were considered suitable for downstream analyses. Our results revealed that of 255 genes expressed differentially, 98 genes were upregulated in tropically-adapted White Fulani (WF; Bos indicus) and 157 genes were down regulated in WF compared to Angus, AG (Bos taurus). Fifteen pathways were identified from the differential gene sets through gene ontology and pathway analyses. These include the significantly enriched melanin metabolic process, proteinaceous extracellular matrix, inflammatory response, defense response, calcium ion binding and response to wounding. Quantitative PCR was used to validate six representative genes which are associated with skin thermoregulation and epithelia dysfunction (mean correlation 0.92; p < 0.001). Our results contribute to identifying genes and understanding molecular mechanisms of skin thermoregulation that may influence strategic genomic selection in cattle to withstand climate adaptation, microbial invasion and mechanical damage.

Inhibitory Mechanism of Blood Coagulation by the Anticoagulant Polysaccharide from Coriolus versicolor (구름버섯 기원 항응고성 다당류의 혈액응고 저해기작)

  • Lee, Hyun-Sun;Kweon, Mee-Hyang;Lim, Wang-Jin;Sung, Ha-Chin;Yang, Han-Chul
    • Korean Journal of Food Science and Technology
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    • v.29 no.4
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    • pp.817-822
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    • 1997
  • Inhibitory mechanism of the anticoagulant polysaccharide purified from the fruit body of Coriolus versicolor was investigated in this paper. The anticoagulant polysaccharide (CV-40-Va-1) was proposed to have functions of the inhibition of intrinsic pathway in the blood coagulation pathway together with the interuption of a human platelet aggregation induced by von Willebrand factor (vWF). CV-40-Va-I inhibited other factors of the coagulation cascade such as factor VIII, IX, and as well as thrombin. Especially, CV-40-Va-I inhibited the fibrin formation mediated by thromin, however the polysaccharide did not affect the fibrin formation directly but affected the anticoagulant activity through the activation of antithrombin III. The sulfation of the anticoagulant polysaccharide increased the anticoagulant activity, showing that the sulfate concentration of anticoagulant polysaccharide was important factor in the blood coagulation cascade. Low molecular weight subfraction (MW 1,000) obtained by partial hydrolysis of the CV-40-Va-1 generated potent antiplatelet activity, but showed decreased anticoagulant activity.

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Web-based QA Workflow System for Radioactive Waste Disposal (방사성 폐기물 처분연구의 QA절차에 따른 웹기반 문서처리 워크플로우 시스템 개발)

  • 김태운;고창성;서대희;이광욱;강철형;황용수;이연명
    • The Journal of Information Systems
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    • v.12 no.1
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    • pp.159-175
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    • 2003
  • During the early stage of radioactive disposal programs, important issues related with quality assurance of data sets, methodologies, R&D procedures are recognized as important ones. This paper focused on the development of web-based workflow standards for the QA procedures of the radioactive waste disposal programs. The flow of process was analyzed based on workflow concepts proposed by the Workflow Management Coalition (WfMC). QA system is based on the principles of T2R3. T2R3 Workflow was used to standardize and restructure the business and/or work process in the industry or organization. The WfMC has identified five functional interfaces to a workflow service as part of its standardization program. They are composed of process definition interface, worklist handler, application program interface, interface between workflows, and system management. The task flow and QA program were defined based on the workflow ideas. QA procedures for the R&D results of radiation disoposal were analyzed following the reference model of workflow. In addition, six program run list were created and implemented. The creation, revision, and approval of the test data were designed to be inplemented on the web environment. Through this system, R&D procedures such as planning, research, documentation, internal review and future independent peer review processes could be well organized and stored more systematically on the database and knowledge base. This will encourage the usage and data sharing between interested parties through it's clear and transparent workflow standards.

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A Study on Modified Weighted Filter for Edge Preservation in AWGN Environments (AWGN 환경에서 에지 보존을 위한 변형된 가중치 필터에 관한 연구)

  • Kwon, Se-Ik;Hwang, Yeong-Yeun;Kim, Nam-Ho
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2016.05a
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    • pp.661-663
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    • 2016
  • Corruption occurs in the process of processing image signal and the corruption changes the pixel value within the image to damage the original information. AWGN(additive white Gaussian noise) is a representative example. For filters to remove AWGN, there are filters such as MF(mean filter), WF(wiener filter), and AWMF(adaptive weighted mean filter). However images processed through standard previous filters lock preservation characteristics in edge areas. Therefore, threshold value is applied for processing on the standard deviation of the local mask in this study and if the standard deviation is smaller than the threshold value, it is not filtered and if the value is bigger than the threshold value, the study suggested an algorithm that processes using weighted value utilizing standard deviation.

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