550 research outputs found
A Study on Augmenting Freight Forwarder's Competitive Power Utilizing Smart Technology
The main purpose of this study is looking into the ways to augment the competitive power of freight forwarders in Korea. More than ever before, the world economic-trade environment is changing quickly and fierce competition among each countries group or companies are seeking for management innovation techniques such as re-engineering, downsizing and outsourcing. This series of economic situation, freighter forwarder is coming into core position with company's logistic partner. But so far, even if there have been a lot of researches and studies about the development plan with considering realistic market situation has not been proposed in this sphere.
......................제1장 서론
제1절 연구의 필요성 및 목적 1
제2절 연구의 방법 및 구성 3
제2장 프레이트 포워더의 산업구조내 이해
제1절 프레이트 포워더의 기능과 역할 5
1.프레이트 포워더의 기능 5
2.프페이트 포워더의 역할변화 7
제2절 프레이트 포워더의 산업구조내 이해 9
1.프레이트 포워더 산업구조 변화 9
2.프레이트 포워더 부가가치 변화 11
3.프레이트 포워더 규모,생산성 변화 13
제3장 프레이트 포워더 국내외 현황 및 환경변화 16
제1절 프레이트 시장환경 변화 16
1.국내포워더 발전과정 및 환경변화 16
2.외국계포워더 현황 및 환경변화 18
제2절 프레이트 포워더 물류역량 증대 21
1.SCM(Supply Chain Management)능력 21
2.물류비용 절감능력, 업무효율화 능력 22
3.Global 물류네트워크 구축 및 서비스 능력 23
제4장 물류산업 이해와 스마트기술 활용 미래물류 변화 25
제1절 물류산업의 이해와 패러다임 변화 25
제2절 Top 10 Strategic Technologies 27
제3절 물류산업에 스마트 기술(Cloud, Big Data, IoT등)활용28
제4절 Case Study 연구; 3개사 31
1.S사 : Cello Solution(SaaS) 31
2.A사 : Cloud Based Planning 34
3.Y사 : Big Data, E-CS, Sensor 37
제5장 요약 및 결론 40
제1절 연구결과의 요약 40
제2절 연구의 기여도 및 한계점 41
참고문헌 42Maste
동시에 측정한 기저동맥과 중대뇌동맥의 이산화탄소 반응성: Power M-mode 도플러와 전-후 탐침 고정장치의 이용
Background: Studies using a transcranial Doppler (TCD) to establish cerebral vasoreactivity (CVR) have mostly focused on the anterior circulation. The purpose of this study is not only to evaluate the feasibility of the power motion mode Doppler (PMD) with a probes fixating device, but also to simultaneously measure the CVR between the middle cerebral artery (MCA) and the basilar artery (BA) during hypercapnea simulated by the rebreathing technique.
Methods: Twenty eight healthy volunteers were enrolled. Baseline hemodynamic values (heart rate, blood pressure) were measured while volunteers sat in a comfortable position for 5 minutes. The TCD was performed in two steps. First, velocities and spectra of the MCAs were simultaneously monitored. Then, the velocities and spectra of the MCA and BA were simultaneously monitored by a headset that included an anterior-posterior probes fixating device. The equation for CVR was ([maximum mean velocity baseline mean velocity]×100/baseline mean velocity).
Results: Baseline mean velocities were revealed as follows: (64.0±13.7, 65.0±11.9 cm/s in right and left MCA; p>0.05; 67.3±12.2, -45.3±7.6 cm/s in dominant MCA and BA). CVR did not differ between the dominant MCA and the BA (46.1±12.1, 46.0±15.1%; p>0.05), nor between the right and left MCAs (46.9±15.2, 46.4±14.8%; p>0.05). There was a positive linear correlation between the CVR of the dominant MCA and that of the BA (r=0.856; p<0.001).
Conclusion: PMD with a probes fixating device for accurate insonation is a useful tool for evaluating the relative CVR between the MCA and BA. Our study suggests that CVR values of the BA are similar to those of the MCA
시신의 절단면영상을 환자의 머리 자기공명영상에 정합하기
Objective :Cadaver’s sectioned images with high resolution and real color could be used as the source of realistic three-dimensional images. If the sectioned images are registered to a patient’s MRIs, three-dimensional images with high resolution and real color that fit the patient, can be produced; the three-dimensional images enable realistic virtual surgery for the patient. The objective of this study was to verify the registration of a cadaver’s sectioned images to a patient’s head MRIs.
Methods :The sectioned images of the heads of cadaver were associated with segmented images selected at 3 mm intervals. The patient had his head MR scanned at 3 mm intervals; the MRIs were segmented. Software to register the cadaver’s sectioned images to the patient’s MRIs was developed. On this software, the corresponding dots were identified on both the sectioned images and the MRIs either manually or automatically using segmented images.
Results :The registered sectioned images corresponded to the patient’s MRIs. Both manual and automatic registrations were satisfied.
Conclusion :Further study is needed for registering sectioned images to actual patients
한국인 헬리코박터 파일로리 감염의 진단과 치료 임상 진료지침 개정안 2013
Since the Korean College of Helicobacter and Upper Gastrointestinal Research has first developed the guideline for the diagnosis and treatment of Helicobacter pylori infection in 1998, the revised guideline was proposed in 2009 by the same group. Although the revised guideline was made by comprehensive review of previous articles and consensus of authoritative expert opinions, the evidence-based developmental process was not applied in the revision of the guideline. This new guideline has been revised especially in terms of changes in the indication and treatment of H. pylori infection in Korea, and developed by the adaptation process as evidence-based method; 6 guidelines were retrieved by systematic review and the Appraisal of Guidelines for Research and Evaluation (AGREE) II process, 21 statements were made with grading system and revised by modified Delphi method. After revision, 11 statements for the indication of test and treatment, 4 statements for the diagnosis and 4 statements for the treatment have been developed, respectively. The revised guideline has been reviewed by external experts before the official endorsement, and will be disseminated for usual clinical practice in Korea. Also, the scheduled update and revision of the guideline will be made periodically
측두골 외상에 의한 침골 전위에 대한 고분해능 전산화 단층촬영의 유용성
BACKGROUND: The quick and accurate radiologic evaluation is essential to minimize the sequelae of temporal bone trauma. High resolution computed tomography(HRCT) is regarded as a method of choice in the evaluation of the head trauma including temporal bone fractures. Although the diagnosis of ossicular dislocation with HRCT has been described, we could find only one report on the usefulness of coronal sections in the diagnosis of lateral displacement of the incus.
OBJECTIVES: The purpose of this study is to evaluate the usefulness of a recently reported radiologic sign, named the "Y" sign, for the diagnosis of lateral dislocation of the incus on the coronal HRCT sections of the temporal bones.
MATERIALS AND METHODS: We retrospectively reviewed the axial and coronal HRCT sections of 13 cases who the laterally dislocated incus was confirmed operatively.
RESULTS: In the axial HRCT sections, abnormal ice cream cone was shown in only 3 cases, but normal ice cream cone was shown in 10 cases. In the coronal HRCT sections, the Y-sign was shown in 11 cases-open Y-sign: 3 cases, closed Y-sign: 8 cases, in contrast, only 2 cases did not shown Y-sign.
CONCLUSION: The Y-sign in the coronal sections is more correlated with the dislocated incus than with abnormal ice cream cone configuration in the axial sections. So, the Y-sign seems to be very useful in the diagnosis of the dislocated incus
파킨슨병과 다계통 위축증 환자들에서 후각기능 및 후각기능과 심장 123I-MIBG섭취율과의 연관성
Background: Tetanus toxin selectively blocks inhibitory synapses in the brainstem as well as the spinal cord. Therefore, in contradiction to Stiff Person syndrome, patients with generalized tetanus usually show abnormal masseter silent periods as well as abnormal F/M amplitude or H/M amplitude ratios. This study aimed to verify the characteristics of electrophysiological findings of generalized tetanus.
Methods: The authors retrospectively studied clinical and electrophysiological characteristics of 7 patients with generalized tetanus, who were admitted to the neurology department of Hallym Medical Center from 1995 to 2005.
Results: All the seven patients showed abnormal masseter silent periods. Three of them showed somewhat improvement in the silent period at follow-up study as trismus was improving. Full NCSs done in two patients did not show any abnormalities except an increased F/M amplitude ratio. One patient with a wound site in his left finger showed an abnormal F/M amplitude ratio only in the right upper extremity without involvement of other extremities. Another patient showed an increased H/M amplitude ratio without an increased F/M amplitude ratio. (In this patient we did not conduct full NCS tests.)
Conclusion: The Masseter silent period could be used as a diagnostic tool and parameter of clinical improvement in patients with generalized tetanus
두부외상 후 발생한 이소골 탈구 유형에 관한 연구
최근 3년 동안 두부외상 후 청력장애를 주소로 이비인후과 외래를 방문하여 전음성 난청을 보이고 수술로 확진된 이소골 탈구 환자 23례를 대상으로 문진 소견, 측두골전산화단층촬영 소견, 수술소견을 통하여 다음과 같은 결과를 얻었다.
1) 본 연구에서 두부외상 후 6 유형의 이소골 탈구 소견이 관찰되었고, 두부외상 후 이소골 탈구의 유형은 침골의 완전 탈구가 가장 많았으며, 전 23례 중 8례(34.8%)에서 는 측두골전산화단층촬영 상 측두골의 골절선이 관찰되지 않았다. 이 경우에는 침골등골관절의 탈구(8례 중 4례)가 가장 많았다.
2) 두부 외상의 가장 많은 원인은 교통사고가 가장 많았으며(70%), 보행 중 교통사고가 차안에서의 교통사고보다 침골의 전위가 더 심하였다.
3) 측두골전산화단층촬영을 통한 이소골 연쇄 상태의 세심한 관찰이 술전 이소골 탈구의 중요한 정보를 줄 수 있었다.BACKGROUND AND OBJECTIVES: Mechanization and reliance on motorized transportation place everyone in our society at risk for head injury. Temporal bone trauma is usually the result of blunt head injury in patients suffering from multiple body injury. Hearing problems can be neglected initially, but many patients complain of hearing difficulties later after the head trauma. If hearing loss is conductive, there is the possibility of the ossicular disruption. The ossicular disruption after the head trauma can develop with or without the temporal bone fracture line. The aim of this study was to analyze the types of ossicular disruption and to review their pathophysiology. MATERIALS & METHODS: In the present study, we analyzed 23 cases of ossicular disruption following head trauma (mean age: 20.2 years, Male: female=14:9). The diagnosis was based on medical history, physical examination, findings of temporal bone CT and confirmed with operative findings.
RESULTS: Among 6 types of ossicular disruption, we encounted 10 cases of complete incus dislocation, which was the most common type of ossicular disruption (43.5%). The most common cause of head injury was car accident. The fracture line of the temporal bone was found in 15 cases. In the 8 cases, we could not find any evidence of fracture. CONCLUSIONS: Incus dislocation is the most common type of ossicular disruption after head trauma and the I-S joint is the weakest point of ossicular chain because of its anatomical structure
가족구조에 따른 아동 정신병리, 부모의 정신건강상태 및 스트레스 대처방식 비교연구- "빈곤가족을 대상으로"
Objectives:The purpose of this study is to investigate the psychopathology of children and parent in low-income housed single-parent family.
Methods:153 low-income housed parents with 8-13 aged children were assessed using the Symptom Checklist-90-
R, Korean Child Behavior Checklist(K-CBCL), the Ways of Coping Checklist. Single-parent family and both-parents
family samples were compared using t tests.
Results:Children of single-parent family scored higher than two parent family on the immaturity(p<.05), attention
problem(p<.001), aggressive behavior(p<.001). Parents of single-parent family had more hostility(p<.05). In coping
strategies, single-parent families frequently used avoidance of problem(p<.001), but both-parents families did seeking
social support(p<.05).
Conclusions:Single-parent family is able to experience more psychiatric problems than both-parents family. It is necessary to support them politically from national dimension because it has the limit for each family to solve problems.연구목적:
본 연구에서는 빈곤가정들을 대상으로 가족 구조에 따른 아동의 정신병리와 부모의 정신건강상태 및 스트레스 대처방식을 비교하고자 하였다.
방 법:
학동기 아동이 있는 158세대의 빈곤가정을 한부모 가족과 양부모 가족으로 나누어 아동행동평가척도(K-CBCL), 간이 정신 건강 척도(SCL-90-R), 스트레스 대처방식 척도를 시행하였다. 통계분석은 t 검정으로 하였다.
결 과:
한부모 가족의 경우가 K-CBCL에서 아동의 미성숙(p<0.05), 주의집중문제(p<0.001), 공격성(p<0.001)이 유의미하게 높았고, 부모의 SCL-90-R에서는 적대감(p<0.05)이 유의미하게 높은 것으로 나타났다. 스트레스 대처방식에서는 양부모 가족
이 조력추구 방식이 높고(p<0.05), 한부모 가족이 문제회피 방식이 높았다(p<0.001).
결 론:
한부모 가족이 양부모 가족에 비해 더 많은 심리적 문제를 경험할 수 있다. 이러한 문제가 각각의 가족내에서 해결되기에는 한계가 크므로 국가적인 차원에서 정책적으로 지원책을 마련해야 할 것이다
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