키워드 분석을 통한 코로나-19 팬데믹 발생 전, 후의 소비자, 음식점 점주의 배달앱에 대한 인식변화 연구: ‘배달의민족’을 중심으로

이용규 한국진로·창업경영학회 2023 한국진로창업경영학회지 Vol.7 No.3

The purpose of this study is to analyze changes in consumers' and restaurant owners' perceptions of delivery apps before and after the COVID-19 pandemic to provide useful information on government institutions' policymaking or restaurant owners and prospective entrepreneurs preparing to start a restaurant. To this end, big data was collected and analyzed from Blogs and Cafes provided by Naver, Google, and Daum under the keyword of "Baemin", a representative delivery platform. The collection period was five years and seven months before and after the pandemic, and the analysis was conducted on 13,130 cases excluding duplicate or unavailable data. TEXTOM 5.0 and UCINET 6 were used for analysis, and Word Cloud analysis, network analysis, CONCOR analysis, and centrality analysis were used for analysis techniques. According to Word Cloud analysis, after the pandemic, traditional delivery food "chicken" was not included in the top keywords of frequency, but "menu", "order", and "review" appeared at the top, indicating that consumers are interested in various "menus" through "reviews". According to the network analysis results, keywords showing a strong connection with the keyword "Baemin" were "Service", "Payment", "App", "Possible", "Card", "Fee", and "Food" while new keywords were "Hyundai Card", "Cashwork", "Gift Certificate", "Coupangeats", and "Platform". This means that demand for delivery food is increasing, and competition in the delivery food market is intensifying with the advent of the new delivery platform Coupangeats, and consumers' demands for delivery food are diversifying. CONCOR analysis shows that, unlike before the pandemic, four main clusters and one subcluster were clearly formed after the pandemic. This is seen as a result of reflecting consumers' increased expectations for delivery apps. According to the results of the centrality analysis, keywords such as "service", "review", "menu", "commission", and "platform" appeared at the top after the pandemic. This is seen as a result of reflecting the increasing demand for "menu" selection through "review" search and high-end "service" delivery, not just food delivery. The implications of this study are of academic significance in that it has identified changes in the perception of delivery apps more comprehensively and objectively through SNS big data, not through a survey method. Based on the results of the study, delivery app operators and restaurant owners (founders) will need to cultivate a management mind for co-prosperity and establish a system that actively responds to the needs of changed consumers. In addition, the government should make more efforts to prevent the monopolization of feared delivery app operators and establish a system that can coexist with restaurant owners. 본 연구의 목적은 코로나-19 팬데믹 이전과 이후 기간에 소비자, 음식점 점주의 배달앱에 대한 인식에 어떤 변화가 있었는지를 분석하여 정부기관의 정책수립 시나 음식점 점주, 음식점 창업을 준비 중인 예비창업가의 배달앱 운영에 대한 의사결정에 유용한 정보를 제공하는데 있다. 이를 위하여 대표적인 배달 플랫폼인 ‘배달의민족’을 키워드로 네이버, 구글, 다음이 제공하는 블로그, 카페 등에서 빅데이터를 수집‧분석하였다. 수집대상 기간은 팬데믹 전, 후 총 5년 7개월이었으며, 중복이거나 사용할 수 없는 데이터를 제외한 13,130건을 대상으로 분석을 실시하였다. 분석에는 TEXTOM 5.0과UCINET 6을 활용하였고, 분석 기법에는 워드클라우드 분석, 네트워크 분석, CONCOR 분석, 중심성 분석이 사용되었다. 워드클라우드 분석 결과에 의하면 팬데믹 이후에는 전통적인 배달 음식인 ‘치킨’이 빈도수 상위 키워드에 포함되지 않은대신 ‘메뉴’, ‘주문’, ‘리뷰’가 상위에 나타나 소비자들이 ‘리뷰’를 통해 다양한 ‘메뉴’에 관심을 보이는 것으로 나타났다. 네트워크 분석 결과에 의하면 키워드인 ‘배달의민족’과 강한 연결 관계를 보이는 키워드로는 ‘서비스’, ‘결제’, ‘앱’, ‘가능’, ‘카드’, ‘수수료’, ‘음식’이었으며, 신규로 등장한 키워드는 ‘현대카드’, ‘캐시워크’, ‘상품권’, ‘쿠팡이츠’, ‘플랫폼’이었다. 이는 배달 음식에 대한 수요가 증가하고 있으며, 신규 배달 플랫폼인 ‘쿠팡이츠’의 등장으로 배달음식 시장의 경쟁이 심해지고 있고, 배달음식에 대한 소비자의 요구도 다양해지고 있음을 의미 한다. CONCOR 분석 결과에 의하면 팬데믹 이전과는 달리 팬데믹 이후 네 개의 주 클러스터와 한 개의 부 클러스터가 명확하게 형성되었다. 이는 배달앱에 대한 소비자들의높아진 기대수준을 반영한 결과로 보여진다. 중심성 분석 결과에 의하면 팬데믹 이후에는 ‘서비스’, ‘리뷰’, ‘메뉴’, ‘수수료’, ‘플랫폼’의 키워드가 상위에 나타났다. 이는 단순한 음식 배달이 아닌 ‘리뷰’ 검색을 통한 ‘메뉴’선정과 고급 ‘서비스’ 를 배달 받기를 희망하는 수요가 증가 하고 있음을 반영한 결과로 보여진다. 본 연구의 시사점은 배달앱에 대한 인식변화를 설문조사 방식이 아닌 SNS빅데이터를 통해 보다 종합적이고 객관적으로 규명했다는 데에 학문적 의의가 있다. 연구결과를 토대로 배달앱 운영사와 음식점 점주(창업자)는 상생을 위한 경영마인드를 함양해야 할 것이며 변화된 소비자의 요구에 적극 대응하는 시스템 구축이 필요할 것이다. 또한 정부는 우려되는 배달앱 운영사의 독점화를 방지하고 음식점 점주들과 상생할 수 있는 제도를 수립하는데 더 노력해야 할 것이다.

앱이용 이륜차 배달종사자의 산재발생 원인 및 예방에 관한 연구

이상희,오상호,이준희,박민수 한국사회법학회 2024 사회법연구 Vol.- No.54

According to literature surveys and various findings on riders' perceptions, the algorithms of the systems used by delivery service providers and customer ratings are not the main factors causing accidents during delivery. In the food delivery platform industry, environmental factors such as delivery time, road environment, and weather conditions, as well as traffic normative factors such as traffic law violations, non-compliance with safe driving obligations, and failure to wear safety gear are the most prevalent factors that increase the risk of accidents while delivering food. There is no clear basis for judging that technical factors such as on-the-road call reception and delivery time, and cultural factors such as bundle delivery and customer rating, which are pointed out as the main contents of the algorithm's criticism, are at least the main causes. Rather, various research results have also been suggested that the main consideration when designing or modifying algorithms for delivery service providers' platforms is to increase delivery efficiency and safety in the delivery process, and that it has the effect of lowering the accident rate. In order to reduce the accident rate of two-wheeled delivery riders in the food delivery platform industry and create a safer working environment, efforts such as improving the safety awareness of delivery workers and improving the overall traffic safety environment should be made in parallel with the expansion of support from operators, rather than trying to point to any one cause. In the short term, it is important to make policy efforts with the aim of creating practical improvement measures for various specific factors identified as direct factors causing traffic accidents during delivery rather than arguing about algorithms whose causal relationship is not clearly proven.

사전 정보가 없는 배송지에서 장애물 탐지 및 배송 드론의 안전 착륙 지점 선정 기법

서민철,한상익 사단법인 한국자동차안전학회 2024 자동차안전학회지 Vol.16 No.2

The delivery using drones has been attracting attention because it can innovatively reduce the delivery time from the time of order to completion of delivery compared to the current delivery system, and there have been pilot projects conducted for safe drone delivery. However, the current drone delivery system has the disadvantage of limiting the operational efficiency offered by fully autonomous delivery drones in that drones mainly deliver goods to pre-set landing sites or delivery bases, and the final delivery is still made by humans. In this paper, to overcome these limitations, we propose obstacle detection and landing site selection algorithm based on a vision sensor that enables safe drone landing at the delivery location of the product orderer, and experimentally prove the possibility of station-to-door delivery. The proposed algorithm forms a 3D map of point cloud based on simultaneous localization and mapping (SLAM) technology and presents a grid segmentation technique, allowing drones to stably find a landing site even in places without prior information. We aims to verify the performance of the proposed algorithm through streaming data received from the drone.

둔위분만에 대한 임상통계적 고찰

공기주,김현찬 인제대학교 1980 仁濟醫學 Vol.1 No.1

둔위의 분만방법은 모든 경우에 일률적 일수는 없고 분만방법에 따른 각각의 장단점을 가지고 있다. 저자들은 분위분만 방침에 따른 태아와 산모의 문제점을 분석하기 위하여 본 고찰을 시도하였다. 질식분만을 일차적 분만방법으로 하고 고전적 적응증하에서만 제왕절개술을 시행하였던 전반기와 일차적 분만방법으로 제왕절개술을 자유로이 시행하고 특정한 경우 질식분만을 시도하였던 후반기를 비교 대조하여 임상통계적 고찰을 한바 전반기에서는 후반기보다 태아의 이환율, 합병증, 주산기사망율이 증가하는 한편, 후반기에서는 모성 이환율과 합병증이 증가하였다. 고로 둔위의 분만방법은 둔위의 유형, 임신주수, 추정태아의 무게, 선진부의 위치, 자궁경관의 상태, 골반의 유형, 분만기왕력, 산과의사의 숙련도 등의 제반사항을 고려하여 결정하여야 할 것으로 사료된다. The breech delivery, the most commonly experienced mode of abnormal delivery, gives rise to dangrous complications in the fetus, and poses many problems to the obstetrician. This clinical study was attempted mainly to evaluate and compare the fetal and maternal morbidity and mortality between period I (1969∼1974) and period II (1975~1979). During period I the main policy of delivery of breech presentation was vaginal and that of period II was Cersarean section. The materials for analysis were based on 266 singleton breech deliveries and 40 twin deliveries among 9,696 deliveries managed at Busan Maryknoll Hospital from July 1, 1969 to June 30, 1979. The results obtained were as follows: 1.The incidence of breech delivery was 2.7% in singleton and 3.2% in all(singleton and twin) deliveries and there was an increased tendency towatd primigravida and nullipara. 2.As to the method of delivery, the Cesarean section rate has continued to rise from a low rate(6∼12%) to a high recent rate of 50%. 3.Possible causes of breech presentation in order of prevalence were prematurity, multiple preganancy, and immaturity but the cause was unknown in 47.7% of the cases. Over half (57.5%) was in frank breech presentation. 4.There was no significant difference in the incidence of postpartum hemorrhage (10.7% in vaginal delivery: over 500ml, 13.1% in section: over 1,000ml) according to the method of delivery. 5.Antepartum maternal complications in order of prevalence were premature rupture of membranes, preeclampsia and prolonged labor. Puerperal fever was the most common morbidffy among postpartum maternal comhications regardless of the method of delivery and there was significant higher incidence after Cesarean sectlon (P<0.005). 6.As to the neonatal morbidity, jaundice was markedly prevalent in the Cesarean section group(P<0.005) but respiratory problems and low Apgar score, less than 3, were more significantly increased in the vaginal delivery group(P>0.025, p<0.005). Head injury and fractures were only noticed in the vaginal delivery group. 7.Corrected perinatal mortality, excluding antepartum death, was 20.6% in vaginal delivery and 1.3% in Cesarean section(P <0.005). Corrected perinatal mortality during period I was 19.7% and that period II was 11.4%(P<0.05). The main causes of perinatal mortality were immaturity and prematurity (71.4%)

Drug delivery to the brain via the nasal route of administration: exploration of key targets and major consideration factors

정승현,장지훈,이용복 한국약제학회 2023 Journal of Pharmaceutical Investigation Vol.53 No.1

Background Cranial nerve-related diseases such as brain tumors, Alzheimer’s disease, and epilepsy are serious diseases that continue to threaten human. Brain-related diseases are increasing worldwide, including in the United States and Korea, and these increases are closely related to the exposure to harmful substances and excessive stress caused by rapid industrialization and environmental pollution. Drug delivery to the brain is very important for the effective prevention and treatment of brainrelated diseases. However, due to the presence of the blood–brain barrier and the extensive first-pass metabolism effect, the general routes of administration such as oral and intravenous routes have limitations in drug delivery to the brain. Therefore, as an alternative, the nasal-brain drug delivery route is attracting attention as a route for effective drug delivery to the brain. Areas covered This review includes physiological factors, advantages, limitations, current application status, especially in clinical applications, and the necessary factors for consideration in formulation development related to nasal-brain drug delivery. Expert opinion The nasal-brain drug delivery route has the advantage of enhancing drug delivery to the brain locally, mainly through the olfactory route rather than the systemic circulation. The nasal-brain lymphatic system has recently attracted attention, and it has been implied that the delivery of anticancer drugs to the brain nervous system is possible effectively. However, there are limitations such as low drug permeability, as well as nasal mucosa and the mucociliary system, as obstacles in nasal-brain drug delivery. Therefore, to overcome the limitations of nasal-brain drug delivery, the use of nanocarriers and mucoadhesive agents is being attempted. However, very few drugs have been officially approved for clinical application via the nasal-brain drug delivery route. This is probably because the understanding of and related studies on nasal-brain drug delivery are limited. In this review, we tried to explore the major considerations and target factors in drug delivery through the nasal-brain route based on physiological knowledge and formulation research information. This will help to provide a mechanistic understanding of drug delivery through the nasal-brain route and bring us one step closer to developing effective formulations and drugs in consideration of the key factors for nasal-brain drug delivery.

Recent advances in polymeric drug delivery systems

Yong Kiel Sung,Sung Wan Kim 한국생체재료학회 2020 생체재료학회지 Vol.24 No.2

Background: Polymeric drug delivery systems have been achieved great development in the last two decades. Polymeric drug delivery has defined as a formulation or a device that enables the introduction of a therapeutic substance into the body. Biodegradable and bio-reducible polymers make the magic possible choice for lot of new drug delivery systems. The future prospects of the research for practical applications has required for the development in the field. Main body: Natural polymers such as arginine, chitosan, dextrin, polysaccharides, poly (glycolic acid), poly (lactic acid), and hyaluronic acid have been treated for polymeric drug delivery systems. Synthetic polymers such as poly (2-hydroxyethyl methacrylate), poly(N-isopropyl acrylamide)s, poly(ethylenimine)s, dendritic polymers, biodegradable and bio-absorbable polymers have been also discussed for polymeric drug delivery. Targeting polymeric drug delivery, biomimetic and bio-related polymeric systems, and drug-free macromolecular therapeutics have also treated for polymeric drug delivery. In polymeric gene delivery systems, virial vectors and non-virial vectors for gene delivery have briefly analyzed. The systems of non-virial vectors for gene delivery are polyethylenimine derivatives, polyethylenimine copolymers, and polyethylenimine conjugated bio-reducible polymers, and the systems of virial vectors are DNA conjugates and RNA conjugates for gene delivery. Conclusion: The development of polymeric drug delivery systems that have based on natural and synthetic polymers are rapidly emerging to pharmaceutical fields. The fruitful progresses have made in the application of biocompatible and bio-related copolymers and dendrimers to cancer treatment, including their use as delivery systems for potent anticancer drugs. Combining perspectives from the synthetic and biological fields will provide a new paradigm for the design of polymeric drug and gene delivery systems.

배송형 구독서비스의 적시성과 제품유형이 소비자의 향유와 구독의도에 미치는 영향

서주원,구만왕,당꾸잉튀지엠,이정규 한국프랜차이즈학회 2022 프랜차이징저널 Vol.8 No.1

Subscription-based delivery service which enables consumers to receive product periodically on the date that they expect becomes popular. While many firms provide subscription-based delivery services to compete with other rivals in the market to make an effort to increase the speed of delivery services, still few things are known on how consumers respond to such delivery services. Related to this issue, the study investigates the effect of timeliness of delivery in subscription-based delivery service depending on the product type on consumers’ subscription intentions, and tries to find the way how to increase their intentions. The study has a 2(timeliness of delivery: high, low) × 2(product type: utilitarian, hedonic) between subject design. Using an ANOVA with the two dichotomous variables of timeliness of delivery and product type, we finds that while consumers indicate higher subscription intentions when they are provided with higher speed of the delivery service in purchasing utilitarian products, they show higher subscription intentions when they are provided with lower speed of the delivery service in purchasing hedonic products. We also find that consumers enjoy savoring when utilitarian products are delivered in faster speed, and they also enjoy savoring when hedonic products are delivered in slower speed. We demonstrate that savoring mediates the relationship between timeliness of delivery with product type and subscription intentions. 소비자가 원하는 날짜에 정기적으로 제품을 배송받을 수 있는 배송형 구독서비스가 크게 성장하고 있다. 배송형 구독서비스를 제공하는 기업들은 더 빠른 배송을 위해 경쟁하고 있지만, 소비자가 이러한 배송 서비스에 실제로 어떻게 반응하는지에 관하여는 알려진 바가 많지 않다. 이와 관련해 본 연구는 배송형 구독서비스에 대해 배송의 적시성과 제품유형의 상호작용이 구독의도에 영향을 미칠 수 있음을 제안하고, 구독의도를 높이는 방법에 대하여 살펴보고자 한다. 본 연구는 집단간 실험설계를 통해 2(배송의 적시성) × 2(제품유형)의 이원 상호작용 효과가 유의함을 확인하였다. 구체적으로 배송의 적시성이 낮을 때는 쾌락재가 실용재보다 더 높은 구독의도를 나타내었으나, 배송의 적시성이 높을 때는 실용재가 쾌락재보다 더 높은 구독의도를 보였다. 한편 배송의 적시성과 제품유형의 상호작용은 소비자가 인지하는 향유를 매개하여 구독의도에 영향을 미치는 것을 발견하였다. 배송의 적시성이 낮을 때는 쾌락재에 한해 향유의 매개효과가 발생하는 반면, 배송의 적시성이 높을 때는 실용재에 한해 향유의 매개효과가 발생함을 확인하였다. 결과적으로 본 연구는 배송의 적시성에 따라 제품유형이 구독의도에 미치는 차별적 영향과 향유의 완전 매개효과를 입증하였으며, 배송 서비스의 구독의도를 높이기 위한 새로운 시각을 제시하였다.

배달앱 거래와 소비자보호에 관한 연구

고형석 ( Hyoung Suk Ko ) 경상대학교 법학연구소 2016 법학연구 Vol.24 No.1

A delivery App service is a type of transaction that developed with the development of mobile. This delivery App service is creating an environment which consumers can easily order foods delivery. If this trading method is given the convenience to the consumer, legal regulations are unnecessary. However, consumer complaints or the damage are increasing in this area. Therefore, there is necessary to legal improvements to protect consumers and develope a delivery app transaction. A delivery app transaction is a mail order sale on the Act on the Consumer Protection in Electronic Commerce. Also, delivery apps operator is a mail order broker and a food delivery business is a mail order distributor. Therefore, a delivery app transaction is subject to the Act on the Consumer Protection in Electronic Commerce. But delivery app transactions are not applied core provisions(Article 12, 13, 14, 15, 17, 18, 19, 20 and 20-2) of the Act because of Article 3 paragraph 3 and 4. Provisions as to a withdrawal should not be applied because a object of delivery app transaction is a food. But a obligation to provide informations should be applied because a delivery App service is not a face-to-face transaction. Also, a delivery apps operator should bear the obligations and responsibilities of brokers. Therefore, Article 3 paragraph 3 and paragraph 4 of the Act should be amended.

여성 대변실금에 대한 연구 - 분만력, 분만방법을 중심으로 -

윤혜원(Hae Won Yoon),배철성(Cheol Seong Bae) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.12

Objectives: To evaluate the effect of parity & delivery method on female fecal incontinence. Method: Based on 213 cases of 4 different delivery method and 40 cases of one non-delivery group, a retrospective analysis of the prevalence of female fecal incontinence, between January 1996 and December 1998, was done. With delivery mode, 4 different groups were: first vaginal delivery group , two or more vaginal deliveries group, first cesarean section group, and first vaginal delivery followed by cesarean section group. All subjects were examined by questionaire or phone about the experience of fecal incontinence after delivery. In cases of fecal incontinence , we reviewed the obstetric complications with medical records. Result: There was no fecal incontinence in the non-delivery group. The incidence of fecal incontinence in the two or more vaginal delivery group(11.7%, 9/77) and the first vaginal delivery followed by cesarean section group(18.1%, 8/44) was higher than the first vaginal delivery group(6.8%, 3/44), and the first cesarean section group(2.1%, 1/48)(P<0.05). The obstetric complications in fecal incontinence cases were: a prolonged second stage, anal sphincter laceration, vacuum extraction, a large baby etc. Conclusion: Fecal incontinence was significantly correlated with the number of vaginal deliveries and obstetric complications during delivery. Fecal incontinence after the first vaginal delivery or vaginal delivery followed by cesarean section are very important factors in choosing the next delivery method.

분만 후 시간대별 모유수유 여부에 영향을 미치는 요인

사공필용,김은경,김윤,김용익,이진석 한국모자보건학회 2009 한국모자보건학회지 Vol.13 No.1

Objectives : The purpose of this study is to analyze the factors affecting breastfeeding initiation by time sequences after delivery. Methods : We retrospectively reviewed medical records of the mothers and neonates in 22 hospitals with over 500 beds selected by proportional stratified random sampling according to location and bed size. We randomly sampled 60 cases per each delivery type (vaginal delivery and C-section) from each hospital, from the patients who had discharged between September 1st and November 30th, 2006. If there were no enough sample size in one hospital, we reviewed all cases during discharged 3 months period. A total of 1,506 medical records were selected but 281 were excluded because of breastfeeding contraindication (54 cases), refusal of breastfeeding(187 cases), and no breastfeeding initiation time record (40 cases). Total number of subjects included for analysis was 1,225. We reviewed breastfeeding initiation time after delivery and conducted Chi-square test and multiple logistic regression analysis. Seven variables (maternal age, delivery type, gestational age, birth weight, 5 minutes APGAR score, mother's hospital duration, and Baby-friendly Hospital Initiative) were used in multiple logistic regression analysis. Multiple logistic regression was carried out using SPSS WIN 12.0 program to identify the factors affecting initiation time of breast feeding. Results : The proportion of mothers who breastfed within 30 minutes after delivery was 12.3% in vaginal delivery and 0% in C-section. Adjusted odds ratios associated with no breastfeeding within 120 minutes after delivery were 0.04(95% CI:0.01-0.19) for C-section with local anesthesia, 0.21 (95% CI: 0.09~0.48) for C-section with general anesthesia compared with vaginal delivery. Adjusted odds ratios associated with no breastfeeding within 180 minutes after delivery were 0.14 (95% CI: 0.06~ 0.31) for C-section with local anesthesia, 0.24 (95% CI: 0.12~0.48) for C-section with general anesthesia compared with vaginal delivery. Adjusted odds ratios associated with no breastfeeding within 24 hours after delivery were 0.19 (95% CI: 0.10~0.37) for C-section with local anesthesia, 0.05 (95% CI: 0.02~0.10) for C- section with general anesthesia compared with vaginal delivery. Conclusion : The results of this study suggest that delivery type, anesthesia type, and Baby-friendly Hospital Initiative are significant factors affecting breastfeeding initiation time after delivery. Because early breastfeeding after delivery is associated with higher breastfeeding rate, policymakers should establish appropriate policies to promote breastfeeding initiation time after delivery.