The Universal Transfer Learning (UTL) Lab at Korea University, led by Prof. Donghyun Kim, focuses on transfer learning. Research investigates the transferability, generalization, and adaptability of robust AI models across diverse AI domains.

고려대학교 김동현 교수 지도하에 운영되는 Universal Transfer Learning (UTL) 연구실은 전이 학습을 주요 연구 분야로 한다. 다양한 인공지능 영역에서 강력한 인공지능 모델의 전이 가능성, 일반화, 적응성을 연구한다.

Are We Truly Forgetting? A Critical Re-examination of Machine Unlearning Evaluation Protocols

Too Many Frames, Not All Useful: Efficient Strategies for Long-Form Video QA

Delving into Pre-training for Domain Transfer: A Broad Study of Pre-training for Domain Generalization and Domain Adaptation

Training-Free Label Space Alignment for Universal Domain Adaptation

Visual delta generation with large multi-modal models enhances composed image retrieval using unlabeled data

Learning Compositionality from Multifaceted Synthetic Data for Language-based Object Detection

Hierarchical Entailment Representations for Linguistic Compositionality in Language-based Object Detection

LoRA-Loop: Closing the Synthetic Replay Cycle for Continual VLM Learning

SynRES: Towards Referring Expression Segmentation in the Wild via Synthetic Data

ZIUM: Zero-Shot Intent-Aware Adversarial Attack on Unlearned Models

MA-CIR: A Multimodal Arithmetic Benchmark for Composed Image Retrieval

CaptionSmiths: Flexibly Controlling Language Pattern in Image Captioning

ToonSplat: High-Quality 3D Cartoon Avatar Reconstruction with Gaussian Splatting

Difference Inversion: Interpolate and Isolate the Difference with Token Consistency for Image Analogy Generation

Weakly Supervised Video Scene Graph Generation via Natural Language Supervision

Deep learning for precipitation nowcasting: A survey from the perspective of time series forecasting

RA-SGG: Retrieval-Augmented Scene Graph Generation Framework via Multi-Prototype Learning

Learning Unified Distance Metric Across Diverse Data Distributions with Parameter-Efficient Transfer Learning

Unified Domain Generalization and Adaptation for Multi-View 3D Object Detection

MATE: Meet At The Embedding–Connecting Images with Long Texts

Weak-to-Strong Compositional Learning from Generative Models for Language-based Object Detection

Efficient and Versatile Robust Fine-Tuning of Zero-shot Models

Visual Delta Generator for Semi-supervised Composed Image Retrieval

What, How, and When Should Object Detectors Update in Continually Changing Test Domains?

LLM4SGG: Large Language Model for Weakly Supervised Scene Graph Generation

Adaptive Self-training Framework for Fine-grained Scene Graph Generation

Grafting Vision Transformers

Learning Human Action Recognition Representations Without Real Humans

Dense and Aligned Captions (DAC) Promote Compositional Reasoning in VL Models

CDAC: Cross-domain Attention Consistency in Transformer for Domain Adaptive Semantic Segmentation

Going Beyond Nouns With Vision & Language Models Using Synthetic Data

Teaching Structured Vision&Language Concepts to Vision&Language Models

CODA-Prompt: COntinual Decomposed Attention-based Prompting for Rehearsal-Free Continual Learning

ConStruct-VL: Data-Free Continual Structured VL Concepts Learning

VisDA 2022 Challenge: Sim2Real Domain Adaptation for Industrial Recycling

A Broad Study of Pre-training for Domain Generalization and Adaptation

A Unified Framework for Domain Adaptive Pose Estimation

VisDA-2021 Competition: Universal Domain Adaptation to Improve Performance on Out-of-Distribution Data

OpenMatch: Open-set Consistency Regularization for Semi-supervised Learning with Outliers

CDS: Cross-domain Self-supervised Pre-training

Learning Cross-Modal Contrastive Features for Video Domain Adaptation

Tune it the Right Way: Unsupervised Validation of Domain Adaptation via Neighborhood Density

Self-supervised Visual Attribute Learning for Fashion Compatibility

Multi-Task Learning from Videos via Efficient Inter-Frame Attention

Universal Domain Adaptation through Self Supervision

Learning to Scale Multilingual Representations for Vision-Language Tasks

Multi-way Encoding for Robustness

MULE: Multimodal Universal Language Embedding

Semi-supervised Domain Adaptation via Minimax Entropy

Excitation Backprop for RNNs

Deep 3D Face Identification

Expression Invariant 3D Face Modeling from an RGB-D Video

Accurate 3D face modeling and recognition from RGB-D stream in the presence of large pose changes

Potential importance of ozone in the association between outdoor air pollution and dry eye disease in South Korea

TFOS Lifestyle Report: Impact of environmental conditions on the ocular surface

Different adverse effects of air pollutants on dry eye disease: Ozone, PM2. 5, and PM10

Mesenchymal stromal cells inhibit inflammatory lymphangiogenesis in the cornea by suppressing macrophage in a TSG-6-dependent manner

Long‐term results of bilateral congenital cataract treated with early cataract surgery, aphakic glasses and secondary IOL implantation

Blockade of CD40–CD154 costimulatory pathway promotes long-term survival of full-thickness porcine corneal grafts in nonhuman primates: clinically applicable xenocorneal …

The comparison between torsional and conventional mode phacoemulsification in moderate and hard cataracts

The role of systemic immunomodulatory treatment and prognostic factors on chronic ocular complications in Stevens–Johnson syndrome

Long-term exposure to ambient air pollutants and age-related macular degeneration in middle-aged and older adults

Topical TSG-6 administration protects the ocular surface in two mouse models of inflammation-related dry eye

Experimental models, induction protocols, and measured parameters in dry eye disease: focusing on practical implications for experimental research

Improved accuracy of intraocular lens power calculation by preoperative management of dry eye disease

Outdoor air pollution and pterygium in Korea

Short-term effects of ground-level ozone in patients with dry eye disease: a prospective clinical study

Anti‐CD 40 antibody‐mediated costimulation blockade promotes long‐term survival of deep‐lamellar porcine corneal grafts in non‐human primates

Short-term therapeutic effects of topical corticosteroids on refractory dry eye disease: clinical usefulness of matrix metalloproteinase 9 testing as a response prediction marker

Unexpected potential protective associations between outdoor air pollution and cataracts

Sex differences in the effect of aging on dry eye disease

Biophysico‐functional compatibility of Seoul National University (SNU) miniature pig cornea as xenocorneal graft for the use of human clinical trial

Modified transscleral fixation using combined temporary haptic externalization and injector intraocular lens implantation

Donghyun Kim

Importance Air pollution is an important public health concern and the ocular surface is continuously exposed to pollutants in outdoor air. Ocular surface abnormalities related to air pollution are thought to be a subtype of dry eye disease (DED). However, to date, there is no large-scale study evaluating an association between air pollution and DED that includes multiple air pollutants. Objective To investigate associations between outdoor air pollution and DED in a Korean population. Design, Setting, and Participants A population-based cross-sectional study using data on 16 824 participants in the fifth Korea National Health and Nutrition Examination Survey was conducted from January 1, 2010, to December 31, 2012. Data analysis was conducted from September 1 to 30, 2015. Dry eye disease was defined as previously diagnosed by an ophthalmologist or the presence of frequent ocular pain and …

Environmental risk factors that have an impact on the ocular surface were reviewed and associations with age and sex, race/ethnicity, geographical area, seasonality, prevalence and possible interactions between risk factors are reviewed. Environmental factors can be (a) climate-related: temperature, humidity, wind speed, altitude, dew point, ultraviolet light, and allergen or (b) outdoor and indoor pollution: gases, particulate matter, and other sources of airborne pollutants. Temperature affects ocular surface homeostasis directly and indirectly, precipitating ocular surface diseases and/or symptoms, including trachoma. Humidity is negatively associated with dry eye disease. There is little data on wind speed and dewpoint. High altitude and ultraviolet light exposure are associated with pterygium, ocular surface degenerations and neoplastic disease. Pollution is associated with dry eye disease and conjunctivitis …

To date, there have been no well-organized clinical studies evaluating which air pollutants affect dry eye disease (DED). In this study, we investigated changes in the clinical parameters of DED according to exposure to outdoor air pollutants, including PM 2.5 (particulate matter with an aerodynamic diameter of less than 2.5 μm), PM 10 (less than 10 μm), and ozone. A prospective observational study was conducted on 43 DED patients who had used the same topical eye drop treatment between 2016 and 2018 in South Korea. Ocular surface discomfort index (OSDI) score, tear film break-up time (TBUT), corneal fluorescein staining score (CFSS), and tear secretion were measured during each visit. Air pollution data of ambient PM 10, PM 2.5, and ozone, based on the patients’ address, were obtained, and mean concentrations were computed for one day, one week, and one month before the examination. The …

The cornea is a transparent tissue devoid of blood and lymphatic vessels. However, various inflammatory conditions can cause hemangiogenesis and lymphangiogenesis in the cornea, compromising transparency and visual acuity. Mesenchymal stem/stromal cells (MSCs) have therapeutic potentials in a variety of diseases because of anti-inflammatory properties. Herein, we investigated the effects of MSCs on corneal angiogenesis using a model of suture-induced inflammatory corneal neovascularization. Data demonstrated that an intravenous administration of MSCs suppressed corneal inflammation and neovascularization, inhibiting both hemangiogenesis and lymphangiogenesis. MSCs reduced the levels of vascular endothelial growth factor (VEGF)-C, VEGF-D, Tek, MRC1, and MRC2 in the cornea, which are expressed by pro-angiogenic macrophages. Moreover, the number of CD11b + monocytes …

Purpose: To evaluate the long‐term visual outcome after early surgery of bilateral dense congenital cataracts, aphakic correction with glasses and secondary intraocular lens (IOL) implantation around 2 years of age. Methods: The medical records of paediatric patients who underwent cataract extraction, aphakic correction and secondary IOL implantation from 1993 to 2004 at Seoul National University Children’s Hospital were reviewed retrospectively. Age at secondary IOL implantation, axial length (AL), best corrected visual acuity (BCVA), refractive error, ocular alignment, stereopsis, and postoperative ocular complications were recorded. Results: Thirty‐seven paediatric bilateral pseudophakic patients were identified with a mean follow‐up period of 81.4 months. Best corrected visual acuity of 20/40 or better were attained in 44.0% of eyes, and the median BCVA was 20/50. Preoperative factors associated …

The porcine cornea may be a good solution for the shortage of human donor corneas because its size and refractive properties are comparable to those of the human cornea. However, antigenic differences need to be overcome to apply xenocorneal transplantation in actual clinical practice. We aimed to investigate the feasibility of full-thickness porcine corneas as human corneal substitutes using a CD40–CD154 costimulatory pathway blocking strategy in a clinically applicable pig-to-nonhuman primate corneal transplantation model. As a result, the mean survival time of the xenocorneal grafts in recipients who received anti-CD154 antibody-based immunosuppressants (POD318 (n = 4); >933, >243, 318 and >192) was significantly longer than that in controls (POD28 (n = 3); 21, 28 and 29 ; p = 0.010, log-rank test). Administration of anti-CD154 antibodies markedly reduced inflammatory cellular infiltrations …

Purpose To compare the intraoperative performances and postoperative outcomes of cataract surgery performed with longitudinal phacoemulsification and torsional phacoemulsification in moderate and hard cataracts. Methods Of 85 patients who had senile cataracts, 102 eyes were operated on using the Infiniti Vision System. Preoperative examinations (slit lamp examination, mean central corneal thickness, and central endothelial cell counts) were performed for each patient. Cataracts were subdivided into moderate and hard, according to the Lens Opacities Classification System III grading of nucleus opalescence (NO). Eyes in each cataract group were randomly assigned to conventional and torsional phaco-mode. Intraoperative parameters, including ultrasound time (UST), cumulative dissipated energy (CDE), and the balanced salt solution plus (BSSP) volume utilized were evaluated. Best corrected visual acuity (BCVA) was checked on postoperative day 30; mean central corneal thickness and central endothelial cell counts were investigated on postoperative days 7 and 30. Results Preoperative BCVA and mean grading of NO showed no difference in both groups. Preoperative endothelial cell count and central corneal thickness also showed no significant difference in both groups. In the moderate cataract group, the CDE, UST, and BSSP volume were significantly lower in the torsional mode than the longitudinal mode, but they did not show any difference in the hard cataract group. Torsional group showed less endothelial cell loss and central corneal thickening at postoperative day seven in moderate cataracts but showed no significant …

Purpose To compare the effect of early systemic immunomodulatory treatment and to identify prognostic factors of chronic ocular complications in Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) patients. Design Retrospective, comparative, multicenter study. Participants Forty-three patients admitted to 1 of 3 University Hospitals (Seoul National University Hospital, Chonnam National University Hospital, and Yonsei University Hospital) with a diagnosis of SJS or TEN who were followed up for at least 6 months in Korea. Methods Patients were divided into 5 groups according to systemic immunomodulatory treatment received: systemic steroids (S), intravenous immunoglobulin (IVIG), combined S plus IVIG, systemic pulse steroids (PS), and supportive care only (C). Best-corrected visual acuity (BCVA) and chronic ocular surface complications score (COCS; range, 0–15) at final follow-up were …

In developed countries, age-related macular degeneration (AMD) is a leading cause of irreversible blindness in adults. The key pathways of AMD are suggested to be excessive oxidative stress and inflammation in the central retina. Because air pollution has been found capable of inducing oxidative stress and inflammation, it may play a role in development of AMD. This study investigated the association between ambient air pollution and AMD in 15,115 middle-aged and older adults (≥40 years) from Korean National Health and Nutrition Examination Survey 2008–2012. After controlling for important confounders, ambient NO 2 and CO in current-to-5 prior years and PM 10 in 2-to-5 prior years were significantly associated with higher prevalence of early AMD, while O 3 in current-to-5 prior years was significantly associated with lower prevalence of early AMD. When modeled air pollution within administrative division …

Purpose: To investigate the therapeutic potential of TNF-α stimulated gene/protein (TSG)-6 in two mouse models of inflammation-mediated dry eye syndrome (DES). Methods: We created inflammation-mediated DES in mice by injecting concanavalin A (ConA; 10 mg/mL) into intraorbital and extraorbital lacrimal glands. Recombinant TSG-6 (1 μg in phosphate-buffered solution [PBS]) or the same volume of PBS was administered topically to eyes of the mice four times a day (QID) for 1 week. In parallel experiments, we topically applied TSG-6 (1 μg) or PBS QID to eyes of 12-week-old NOD. B10. H2 b mice, a model for primary Sjögren's syndrome. Seven days later, tear production was measured, and the corneal surface was observed for epithelial defects. The number of goblet cells was evaluated in the forniceal conjunctiva. The levels of proinflammatory cytokines were analyzed in the cornea, conjunctiva, and lacrimal glands. Also, in vitro experiments were performed using cultures of corneal epithelial cells (CECs) to test the effects of TSG-6 on cell proliferation and migration. Results: Topical TSG-6 administration improved tear production and reduced corneal epithelial defects both in ConA-injected mice and NOD. B10. H2 b mice. The conjunctival goblet cell density was higher in TSG-6–treated eyes than in PBS-treated eyes. The expression of proinflammatory cytokines in the cornea, conjunctiva, and intraorbital gland was repressed by TSG-6, while the levels of proinflammatory cytokines in the extraorbital gland were not changed. In vitro experiments revealed that TSG-6 promoted the migration of CECs, but did not affect the proliferation …

Dry eye disease (DED) is one of the major ophthalmological healthcare challenges worldwide. DED is a multifactorial disease characterized by a loss of homeostasis of the tear film, and its main pathogenesis is chronic ocular surface inflammation related with various cellular and molecular signaling cascades. The animal model is a reliable and effective tool for understanding the various pathological mechanisms and molecular cascades in DED. Considerable experimental research has focused on developing new strategies for the prevention and treatment of DED. Several experimental models of DED have been developed, and different animal species such as rats, mice, rabbits, dogs, and primates have been used for these models. Although the basic mechanisms of DED in animals are nearly identical to those in humans, proper knowledge about the induction of animal models is necessary to obtain better and more reliable results. Various experimental models (in vitro and in vivo DED models) were briefly discussed in this review, along with pathologic features, analytical approaches, and common measurements, which will help investigators to use the appropriate cell lines, animal, methods, and evaluation parameters depending on their study design.

Background To evaluate the effects of pretreatment for dry eye disease (DED) on the accuracy of intraocular lens (IOL) power calculation. Methods Patients who underwent uneventful cataract surgery were included in the study. IOL power was determined using the SRK/T and Barrett Universal II (Barrett) formulas. The patients were divided into non-pretreatment and pretreatment groups, and those in the pretreatment group were treated with topical 0.5% loteprednol etabonate and 0.05% cyclosporin A for 2 weeks prior to cataract surgery. Ocular biometry was performed in all groups within 2 days before surgery. The mean prediction error, mean absolute error (MAE), and proportions of refractive surprise were compared between the non-pretreatment and pretreatment groups at 1 month postoperatively. Refractive surprise was defined as MAE ≥ 0.75D. Results In a total of 105 patients, 52 (52 eyes) were in the non …

We investigated relationships between outdoor air pollution and pterygium in Korean adults. This study includes 23,276 adults in population-based cross-sectional data using the Korea National Health and Nutrition Examination Survey 2008–2011. Pterygium was assessed using slit lamp biomicroscopy. Air pollution data (humidity, particulate matter with aerodynamic diameter less than 10 μm [PM 10 ], ozone [O 3 ], nitrogen dioxide [NO 2 ], and sulfur dioxide levels [SO 2 ]) for 2 years preceding the ocular examinations were acquired. Associations of multiple air pollutants with pterygium or pterygium recurrence after surgery were examined using multivariate logistic models, after adjusting for several covariates. Distributed lag models were additionally used for estimating cumulative effects of air pollution on pterygium. None of air pollution factors was significantly associated with pterygium or pterygium recurrence (each P > 0.05). Distributed lag models also showed that air pollution factors were not associated with pterygium or pterygium recurrence in 0-to-2 year lags (each P > 0.05). However, primary pterygium showed a weak association with PM 10 after adjusting for covariates (odds ratio [OR] 1.23; [per 5 μg/m 3 PM 10 increase]; P = 0.023). Aging, male sex, and greater sun exposure were associated with pterygium, while higher education level and myopia were negatively associated with pterygium (each P ≤ 0.001). Male sex and myopia were negatively associated with pterygium recurrence (each P < 0.05). In conclusion, exposure to higher PM 10 levels was associated with primary pterygium, although this study observed no significant association …

Purpose: To investigate changes in the clinical features of patients with dry eye disease (DED) according to short-term outdoor ground-level ozone exposure. Methods: This prospective observational study included patients with DED who were treated with the same topical drugs (0.05% cyclosporine or 3% diquafosol) and visited the hospital twice at 2-month intervals. Patients who showed a short tear film breakup time and positive ocular surface staining were assigned to the diquafosol and cyclosporine groups, respectively. The ocular surface disease index (OSDI) score, tear secretion, tear film breakup time, and corneal fluorescein staining score were measured at each visit. The mean ground-level ozone concentration for 1 week before the ocular examinations was used as the ozone exposure level. Changes in dry eye parameters according to changes in ozone concentration were analyzed using univariate and …

Background Corneal xenotransplantation is an effective solution for the shortage of human donor corneas, and the porcine cornea may be a suitable candidate for the donor cornea because of its optical similarity with humans. However, it is necessary to administer additional immunosuppressants to overcome antigenic differences. We aimed to investigate the feasibility of porcine corneas with anti‐CD40 antibody‐mediated costimulation blockade in a clinically applicable pig‐to‐non‐human primate corneal xenotransplantation model. Methods Five Chinese rhesus macaques underwent deep‐lamellar corneal transplantation using clinically acceptable sized (7.5 mm diameter) porcine corneal grafts. The anti‐CD40 antibody was intravenously administered on a programmed schedule. Graft survival, central corneal thickness, and intraocular pressure were evaluated. Changes in effector and memory T and B cell …

Purpose To compare the short-term therapeutic effects of topical corticosteroids in patients with refractory dry eye disease (DED) according to the tear matrix metalloproteinase 9 (MMP-9) point-of-care positivity. Methods This study was conducted on 137 patients who were referred from other eye clinics, complaining of irresponsive DED or acute DED flares despite routine treatment with topical cyclosporin or diquafosol. The patients received treatment with topical corticosteroids for 1 month. DED was evaluated by SANDE (Symptom Assessment in Dry Eye) questionnaire, tear film breakup time, ocular surface staining score, and meibomian gland dysfunction stage. The InflammaDry MMP-9 immunoassay was conducted in more symptomatic eyes of all patients. The changes in the subjective symptoms were additionally surveyed as symptom improvement score. Results The mean age of the patients was 57.8±13.4 years …

Air pollution is one of the biggest public health issues, and the eye is continuously exposed to multiple outdoor air pollution. However, to date, no large-scale study has assessed the relationship between air pollutants and cataracts. We investigated associations between outdoor air pollution and cataracts in the Korean population. A population-based cross-sectional study was performed using data from the Korea National Health and Nutrition Examination Survey, including 18,622 adults more than 40 years of age. The presence of cataracts and their subtypes were evaluated by ophthalmologists. Air pollution data (levels of particulate matter, ozone, nitrogen dioxide, and sulfur dioxide) for the 2 years prior to the ocular examinations were collected from national monitoring stations. The associations of multiple air pollutants with cataracts were assessed by multivariate logistic regression analyses. Sociodemographic …

Purpose Aging is a major risk factor in dry eye disease (DED), and understanding sexual differences is very important in biomedical research. However, there is little information about sex differences in the effect of aging on DED. We investigated sex differences in the effect of aging and other risk factors for DED. Methods This study included data of 16,824 adults from the Korea National Health and Nutrition Examination Survey (2010–2012), which is a population-based cross-sectional survey. DED was defined as the presence of frequent ocular dryness or a previous diagnosis by an ophthalmologist. Basic sociodemographic factors and previously known risk factors for DED were included in the analyses. Linear regression modeling and multivariate logistic regression modeling were used to compare the sex differences in the effect of risk factors for DED; we additionally performed tests for interactions between sex …

Background Xenocorneal transplantation is one of the solutions for shortage of donor cornea, and remarkable advances have been made in pig‐to‐rhesus studies from the immunological perspective. Most successful preclinical trials have been carried out with corneas of the Seoul National University (SNU) miniature pig (SNU pig, genetically unmodified) as donor tissues; however, there has been no biophysico‐functional evaluation of the SNU pig cornea as a substitute for human cornea. The purpose of this study was to investigate the biophysical and functional compatibility of SNU pig cornea for use in human clinical trials. Methods Ninety‐three eyeballs obtained from 51 SNU pigs were used to evaluate the physical properties and changes in porcine corneal endothelial cells (PCECs) depending on preservation time and storage condition before surgery, proliferative and functional characteristics of PCECs …

Several transscleral suturing techniques require intricate surgical maneuvers and are associated with an increased risk for surgical trauma. We describe a new scleral fixation method that combines the advantages of temporary haptic externalization and injector implantation of an intraocular lens (IOL). After IOL insertion with the injector, each haptic is externalized through 2 adjacent corneal incisions. A 10-0 polypropylene suture loop is made at each exposed haptic and transscleral IOL fixation performed. This modified technique is a safe and effective way to fixate the IOL in eyes with insufficient capsule support. FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.

Joined the Department of Artificial Intelligence

M.S at University of Southern California with Prof. Gerard Medioni and Dr. Jongmoo Choi

Universal Transfer Learning Lab

교수님 소개

김동현

연구실 소개

연구실 키워드

알럼나이가 간 회사

연구실 지원 방법

대우 조건

연도별 논문 인용수

저널 & 학회 논문 출판 수

연구실 논문 목록

Are We Truly Forgetting? A Critical Re-examination of Machine Unlearning Evaluation Protocols

Too Many Frames, Not All Useful: Efficient Strategies for Long-Form Video QA

Delving into Pre-training for Domain Transfer: A Broad Study of Pre-training for Domain Generalization and Domain Adaptation

연구실 보유 특허

대학별 입시끈

우리 연구실 모집

교수님 소개

김동현

연구실 키워드

알럼나이가 간 회사

연구실 지원 방법

대우 조건

연도별 논문 인용수

저널 & 학회 논문 출판 수

연구실 논문 목록

Are We Truly Forgetting? A Critical Re-examination of Machine Unlearning Evaluation Protocols

Too Many Frames, Not All Useful: Efficient Strategies for Long-Form Video QA

Delving into Pre-training for Domain Transfer: A Broad Study of Pre-training for Domain Generalization and Domain Adaptation

연구실 보유 특허

최근 3년간 연구실적 높은 연구실

대학별 입시끈

우리 연구실 모집